diff --git a/.settings/language.settings.xml b/.settings/language.settings.xml new file mode 100644 index 0000000..bcdc514 --- /dev/null +++ b/.settings/language.settings.xml @@ -0,0 +1,15 @@ + + + + + + + + + + + + + + + diff --git a/cmd/ipfs/init.c b/cmd/ipfs/init.c index 827ea15..af950be 100644 --- a/cmd/ipfs/init.c +++ b/cmd/ipfs/init.c @@ -1,13 +1,14 @@ #include #include -#include "init.h" -#include "../../commands/command_option.h" -#include "../../commands/request.h" -#include "../../core/ipfs_node.h" -#include "../../core/builder.h" -#include "../../repo/config/config.h" -#include "../../repo/fsrepo/fs_repo.h" +#include "ipfs/cmd/ipfs/init.h" +#include "ipfs/commands/command_option.h" +//#include "ipfs/commands/request.h" +#include "ipfs/os/utils.h" +#include "ipfs/core/ipfs_node.h" +#include "ipfs/core/builder.h" +#include "ipfs/repo/config/config.h" +#include "ipfs/repo/fsrepo/fs_repo.h" const int nBitsForKeypairDefault = 2048; @@ -21,10 +22,11 @@ int init_pre_run(struct Request* request) { return 0; } -int initialize_ipns_keyspace(char* repoRoot) { +int initialize_ipns_keyspace(char* repo_root) { //TODO: open fs repo struct FSRepo repo; - int retVal = fs_repo_open(repoRoot, &repo); + // get the path + int retVal = fs_repo_open(repo_root, &repo); //TODO: make a new node, then close it //TODO: setup offline routing on new node struct IpfsNode* ipfs_node; @@ -38,19 +40,26 @@ int initialize_ipns_keyspace(char* repoRoot) { /** * called by init_run, to do the heavy lifting - * @param outFile an output stream (stdout) - * @param repoRoot a string + * @param out_file an output stream (stdout) + * @param repo_root a string * @param empty true(1) if empty, false(0) if not - * @param nBitsForKeyPair number of bits for key pair + * @param num_bits_for_keypair number of bits for key pair * @param conf the configuration struct * @returns 0 on error, 1 on success */ -int do_init(FILE* outFile, char* repoRoot, int empty, int nBitsForKeyPair, struct Config* conf) { - //TODO: verify that it is not already initialized +int do_init(FILE* out_file, char* repo_root, int empty, int num_bits_for_keypair, struct RepoConfig* conf) { + // make sure the directory is writable + if (!os_utils_directory_writeable(repo_root)) + return 0; + // verify that it is not already initialized + if (!fs_repo_is_initialized(repo_root)) + return 0; //TODO: If the conf is null, make one + if (conf == NULL) + repo_config_init(conf, num_bits_for_keypair); //TODO: initialize the fs repo //TODO: add default assets - return initialize_ipns_keyspace(repoRoot); + return initialize_ipns_keyspace(repo_root); } /*** @@ -62,11 +71,11 @@ int init_run(struct Request* request) { // TODO: make sure offline // TODO: check parameters for logic errors // TODO: Initialize - struct Config conf; + struct RepoConfig conf; // TODO: handle files in request // do the heavy lifting - int nBitsForKeyPair = request->cmd->options[1]->default_int_val; - do_init(stdout, request->invoc_context->config_root, 1, nBitsForKeyPair, &conf); + int num_bits_for_key_pair = request->cmd->options[1]->default_int_val; + do_init(stdout, request->invoc_context->config_root, 1, num_bits_for_key_pair, &conf); return 0; } diff --git a/commands/cli/parse.c b/commands/cli/parse.c index 5edfa48..050f9b7 100644 --- a/commands/cli/parse.c +++ b/commands/cli/parse.c @@ -1,4 +1,4 @@ -#include "parse.h" +#include "ipfs/commands/cli/parse.h" int cli_parse(char** params, FILE* inStream, struct Command* cmd, struct Request* request) { return 0; diff --git a/commands/command_option.c b/commands/command_option.c index 293cf62..147fbed 100644 --- a/commands/command_option.c +++ b/commands/command_option.c @@ -9,7 +9,7 @@ #include #include -#include "command_option.h" +#include "ipfs/commands/command_option.h" int init_command_option(struct CommandOption* option, char* description) { option->description = description; diff --git a/core/builder.c b/core/builder.c index 099e285..f8825b6 100644 --- a/core/builder.c +++ b/core/builder.c @@ -6,7 +6,7 @@ // Copyright © 2016 JMJAtlanta. All rights reserved. // -#include "builder.h" +#include "ipfs/core/builder.h" int core_builder_new_node(struct Context* context, struct BuildCfg* build_cfg, struct IpfsNode* buildConfig) { // TODO: Implement this methods diff --git a/cmd/ipfs/init.h b/include/ipfs/cmd/ipfs/init.h similarity index 93% rename from cmd/ipfs/init.h rename to include/ipfs/cmd/ipfs/init.h index 68f9354..374fc7c 100644 --- a/cmd/ipfs/init.h +++ b/include/ipfs/cmd/ipfs/init.h @@ -4,7 +4,7 @@ #ifndef __CMD_IPFS_INIT_H__ #define __CMD_IPFS_INIT_H__ -#include "../../commands/command.h" +#include "ipfs/commands/command.h" /*** * Returns a command structure customized for the init command diff --git a/commands/argument.h b/include/ipfs/commands/argument.h similarity index 100% rename from commands/argument.h rename to include/ipfs/commands/argument.h diff --git a/commands/cli/parse.h b/include/ipfs/commands/cli/parse.h similarity index 94% rename from commands/cli/parse.h rename to include/ipfs/commands/cli/parse.h index 4da54a4..aa90bc6 100644 --- a/commands/cli/parse.h +++ b/include/ipfs/commands/cli/parse.h @@ -1,12 +1,12 @@ /*** * methods to parse the command line parameters -*/ + */ #ifndef __COMMANDS_CLI_PARSE_H__ #define __COMMANDS_CLI_PARSE_H__ #include -#include "../command.h" +#include "ipfs/commands/command.h" /*** * turns parameters passed in into a Request struct diff --git a/commands/command.h b/include/ipfs/commands/command.h similarity index 100% rename from commands/command.h rename to include/ipfs/commands/command.h diff --git a/commands/command_option.h b/include/ipfs/commands/command_option.h similarity index 100% rename from commands/command_option.h rename to include/ipfs/commands/command_option.h diff --git a/commands/context.h b/include/ipfs/commands/context.h similarity index 75% rename from commands/context.h rename to include/ipfs/commands/context.h index cc0e810..b1f9854 100644 --- a/commands/context.h +++ b/include/ipfs/commands/context.h @@ -9,15 +9,15 @@ #ifndef __COMMANDS_CONTEXT_H__ #define __COMMANDS_CONTEXT_H__ -#include "req_log.h" -#include "../repo/config/config.h" -#include "../core/ipfs_node.h" +#include "ipfs/commands/req_log.h" +#include "ipfs/repo/config/config.h" +#include "ipfs/core/ipfs_node.h" struct Context { int online; char* config_root; struct ReqLog req_log; - struct Config config; + struct RepoConfig config; int (*load_config)(char* path); struct IpfsNode node; int (*construct_node)(struct IpfsNode* node); diff --git a/commands/req_log.h b/include/ipfs/commands/req_log.h similarity index 100% rename from commands/req_log.h rename to include/ipfs/commands/req_log.h diff --git a/core/builder.h b/include/ipfs/core/builder.h similarity index 87% rename from core/builder.h rename to include/ipfs/core/builder.h index 0743801..af04382 100644 --- a/core/builder.h +++ b/include/ipfs/core/builder.h @@ -11,8 +11,8 @@ #include -#include "../commands/context.h" -#include "../repo/config/config.h" +#include "ipfs/commands/context.h" +#include "ipfs/repo/config/config.h" struct BuildCfg { int online; diff --git a/core/ipfs_node.h b/include/ipfs/core/ipfs_node.h similarity index 100% rename from core/ipfs_node.h rename to include/ipfs/core/ipfs_node.h diff --git a/os/utils.h b/include/ipfs/os/utils.h similarity index 79% rename from os/utils.h rename to include/ipfs/os/utils.h index bb61a93..c440fc6 100644 --- a/os/utils.h +++ b/include/ipfs/os/utils.h @@ -15,6 +15,12 @@ */ char* os_utils_getenv(char* variable); +/** + * get the user's home directory + * @returns the user's home directory + */ +char* os_utils_get_homedir(); + /** * join 2 pieces of a filepath, being careful about the slashes * @param root the root part @@ -22,8 +28,10 @@ char* os_utils_getenv(char* variable); * @param results where to put the results * @param max_len throw an error if the total is longer than max_len */ -int os_utils_filepath_join(char* root, char* extension, char* results, int max_len); +int os_utils_filepath_join(char* root, char* extension, char* results, unsigned long max_len); int os_utils_file_exists(char* file_name); +int os_utils_directory_writeable(char* path); + #endif /* utils_h */ diff --git a/repo/config/config.h b/include/ipfs/repo/config/config.h similarity index 81% rename from repo/config/config.h rename to include/ipfs/repo/config/config.h index be8be38..4ca569d 100644 --- a/repo/config/config.h +++ b/include/ipfs/repo/config/config.h @@ -4,7 +4,7 @@ #include "datastore.h" #include "identity.h" -struct Config { +struct RepoConfig { struct Identity identity; struct Datastore datastore; //struct address* addresses; @@ -41,4 +41,12 @@ int config_get_file_name(char* path, char* result); */ int config_path(char* config_root, char* extension, char* result, int max_len); +/*** + * create a configuration based on the passed in parameters + * @param config the configuration struct + * @param num_bits_for_keypair number of bits for the key pair + * @returns true(1) on success, otherwise 0 + */ +int repo_config_init(struct RepoConfig* config, unsigned int num_bits_for_keypair); + #endif diff --git a/repo/config/datastore.h b/include/ipfs/repo/config/datastore.h similarity index 100% rename from repo/config/datastore.h rename to include/ipfs/repo/config/datastore.h diff --git a/include/ipfs/repo/config/identity.h b/include/ipfs/repo/config/identity.h new file mode 100644 index 0000000..d37ef26 --- /dev/null +++ b/include/ipfs/repo/config/identity.h @@ -0,0 +1,22 @@ +// +// identity.h +// c-ipfs +// +// Created by John Jones on 10/27/16. +// Copyright © 2016 JMJAtlanta. All rights reserved. +// + +#ifndef __REPO_CONFIG_IDENTITY_H__ +#define __REPO_CONFIG_IDENTITY_H__ + +struct Identity { + char* peer_id; // a pretty-printed public key + char* private_key; // a private key +}; + +/*** + * initializes a new keypair, and puts it in the Identity struct + */ +int repo_config_identity_new(struct Identity* identity, unsigned long num_bits_for_keypair); + +#endif /* identity_h */ diff --git a/include/ipfs/repo/config/rsa.h b/include/ipfs/repo/config/rsa.h new file mode 100644 index 0000000..6652192 --- /dev/null +++ b/include/ipfs/repo/config/rsa.h @@ -0,0 +1,652 @@ +/** + * \file rsa.h + * + * \brief The RSA public-key cryptosystem + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_RSA_H +#define MBEDTLS_RSA_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls_config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "mbedtls_bignum.h" +#include "mbedtls_md.h" + +#if defined(MBEDTLS_THREADING_C) +#include "threading.h" +#endif + +/* + * RSA Error codes + */ +#define MBEDTLS_ERR_RSA_BAD_INPUT_DATA -0x4080 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_RSA_INVALID_PADDING -0x4100 /**< Input data contains invalid padding and is rejected. */ +#define MBEDTLS_ERR_RSA_KEY_GEN_FAILED -0x4180 /**< Something failed during generation of a key. */ +#define MBEDTLS_ERR_RSA_KEY_CHECK_FAILED -0x4200 /**< Key failed to pass the library's validity check. */ +#define MBEDTLS_ERR_RSA_PUBLIC_FAILED -0x4280 /**< The public key operation failed. */ +#define MBEDTLS_ERR_RSA_PRIVATE_FAILED -0x4300 /**< The private key operation failed. */ +#define MBEDTLS_ERR_RSA_VERIFY_FAILED -0x4380 /**< The PKCS#1 verification failed. */ +#define MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE -0x4400 /**< The output buffer for decryption is not large enough. */ +#define MBEDTLS_ERR_RSA_RNG_FAILED -0x4480 /**< The random generator failed to generate non-zeros. */ + +/* + * RSA constants + */ +#define MBEDTLS_RSA_PUBLIC 0 +#define MBEDTLS_RSA_PRIVATE 1 + +#define MBEDTLS_RSA_PKCS_V15 0 +#define MBEDTLS_RSA_PKCS_V21 1 + +#define MBEDTLS_RSA_SIGN 1 +#define MBEDTLS_RSA_CRYPT 2 + +#define MBEDTLS_RSA_SALT_LEN_ANY -1 + +/* + * The above constants may be used even if the RSA module is compile out, + * eg for alternative (PKCS#11) RSA implemenations in the PK layers. + */ +#if defined(MBEDTLS_RSA_C) + +#ifdef __cplusplus +extern "C" { +#endif + + /** + * \brief RSA context structure + */ + typedef struct + { + int ver; /*!< always 0 */ + size_t len; /*!< size(N) in chars */ + + mbedtls_mpi N; /*!< public modulus */ + mbedtls_mpi E; /*!< public exponent */ + + mbedtls_mpi D; /*!< private exponent */ + mbedtls_mpi P; /*!< 1st prime factor */ + mbedtls_mpi Q; /*!< 2nd prime factor */ + mbedtls_mpi DP; /*!< D % (P - 1) */ + mbedtls_mpi DQ; /*!< D % (Q - 1) */ + mbedtls_mpi QP; /*!< 1 / (Q % P) */ + + mbedtls_mpi RN; /*!< cached R^2 mod N */ + mbedtls_mpi RP; /*!< cached R^2 mod P */ + mbedtls_mpi RQ; /*!< cached R^2 mod Q */ + + mbedtls_mpi Vi; /*!< cached blinding value */ + mbedtls_mpi Vf; /*!< cached un-blinding value */ + + int padding; /*!< MBEDTLS_RSA_PKCS_V15 for 1.5 padding and + MBEDTLS_RSA_PKCS_v21 for OAEP/PSS */ + int hash_id; /*!< Hash identifier of mbedtls_md_type_t as + specified in the mbedtls_md.h header file + for the EME-OAEP and EMSA-PSS + encoding */ +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; /*!< Thread-safety mutex */ +#endif + } + mbedtls_rsa_context; + + /** + * \brief Initialize an RSA context + * + * Note: Set padding to MBEDTLS_RSA_PKCS_V21 for the RSAES-OAEP + * encryption scheme and the RSASSA-PSS signature scheme. + * + * \param ctx RSA context to be initialized + * \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21 + * \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier + * + * \note The hash_id parameter is actually ignored + * when using MBEDTLS_RSA_PKCS_V15 padding. + * + * \note Choice of padding mode is strictly enforced for private key + * operations, since there might be security concerns in + * mixing padding modes. For public key operations it's merely + * a default value, which can be overriden by calling specific + * rsa_rsaes_xxx or rsa_rsassa_xxx functions. + * + * \note The chosen hash is always used for OEAP encryption. + * For PSS signatures, it's always used for making signatures, + * but can be overriden (and always is, if set to + * MBEDTLS_MD_NONE) for verifying them. + */ + void mbedtls_rsa_init( mbedtls_rsa_context *ctx, + int padding, + int hash_id); + + /** + * \brief Set padding for an already initialized RSA context + * See \c mbedtls_rsa_init() for details. + * + * \param ctx RSA context to be set + * \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21 + * \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier + */ + void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding, int hash_id); + + /** + * \brief Generate an RSA keypair + * + * \param ctx RSA context that will hold the key + * \param f_rng RNG function + * \param p_rng RNG parameter + * \param nbits size of the public key in bits + * \param exponent public exponent (e.g., 65537) + * + * \note mbedtls_rsa_init() must be called beforehand to setup + * the RSA context. + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ + int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + unsigned int nbits, int exponent ); + + /** + * \brief Check a public RSA key + * + * \param ctx RSA context to be checked + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ + int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx ); + + /** + * \brief Check a private RSA key + * + * \param ctx RSA context to be checked + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ + int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx ); + + /** + * \brief Check a public-private RSA key pair. + * Check each of the contexts, and make sure they match. + * + * \param pub RSA context holding the public key + * \param prv RSA context holding the private key + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ + int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv ); + + /** + * \brief Do an RSA public key operation + * + * \param ctx RSA context + * \param input input buffer + * \param output output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note This function does NOT take care of message + * padding. Also, be sure to set input[0] = 0 or assure that + * input is smaller than N. + * + * \note The input and output buffers must be large + * enough (eg. 128 bytes if RSA-1024 is used). + */ + int mbedtls_rsa_public( mbedtls_rsa_context *ctx, + const unsigned char *input, + unsigned char *output ); + + /** + * \brief Do an RSA private key operation + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for blinding) + * \param p_rng RNG parameter + * \param input input buffer + * \param output output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The input and output buffers must be large + * enough (eg. 128 bytes if RSA-1024 is used). + */ + int mbedtls_rsa_private( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + const unsigned char *input, + unsigned char *output ); + + /** + * \brief Generic wrapper to perform a PKCS#1 encryption using the + * mode from the context. Add the message padding, then do an + * RSA operation. + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding + * and MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param ilen contains the plaintext length + * \param input buffer holding the data to be encrypted + * \param output buffer that will hold the ciphertext + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ + int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ); + + /** + * \brief Perform a PKCS#1 v1.5 encryption (RSAES-PKCS1-v1_5-ENCRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for padding and MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param ilen contains the plaintext length + * \param input buffer holding the data to be encrypted + * \param output buffer that will hold the ciphertext + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ + int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ); + + /** + * \brief Perform a PKCS#1 v2.1 OAEP encryption (RSAES-OAEP-ENCRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding + * and MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param label buffer holding the custom label to use + * \param label_len contains the label length + * \param ilen contains the plaintext length + * \param input buffer holding the data to be encrypted + * \param output buffer that will hold the ciphertext + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ + int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t ilen, + const unsigned char *input, + unsigned char *output ); + + /** + * \brief Generic wrapper to perform a PKCS#1 decryption using the + * mode from the context. Do an RSA operation, then remove + * the message padding + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param olen will contain the plaintext length + * \param input buffer holding the encrypted data + * \param output buffer that will hold the plaintext + * \param output_max_len maximum length of the output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise + * an error is thrown. + */ + int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ); + + /** + * \brief Perform a PKCS#1 v1.5 decryption (RSAES-PKCS1-v1_5-DECRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param olen will contain the plaintext length + * \param input buffer holding the encrypted data + * \param output buffer that will hold the plaintext + * \param output_max_len maximum length of the output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise + * an error is thrown. + */ + int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ); + + /** + * \brief Perform a PKCS#1 v2.1 OAEP decryption (RSAES-OAEP-DECRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param label buffer holding the custom label to use + * \param label_len contains the label length + * \param olen will contain the plaintext length + * \param input buffer holding the encrypted data + * \param output buffer that will hold the plaintext + * \param output_max_len maximum length of the output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise + * an error is thrown. + */ + int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ); + + /** + * \brief Generic wrapper to perform a PKCS#1 signature using the + * mode from the context. Do a private RSA operation to sign + * a message digest + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and for + * MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer that will hold the ciphertext + * + * \return 0 if the signing operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note In case of PKCS#1 v2.1 encoding, see comments on + * \note \c mbedtls_rsa_rsassa_pss_sign() for details on md_alg and hash_id. + */ + int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ); + + /** + * \brief Perform a PKCS#1 v1.5 signature (RSASSA-PKCS1-v1_5-SIGN) + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer that will hold the ciphertext + * + * \return 0 if the signing operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ + int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ); + + /** + * \brief Perform a PKCS#1 v2.1 PSS signature (RSASSA-PSS-SIGN) + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and for + * MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer that will hold the ciphertext + * + * \return 0 if the signing operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note The hash_id in the RSA context is the one used for the + * encoding. md_alg in the function call is the type of hash + * that is encoded. According to RFC 3447 it is advised to + * keep both hashes the same. + */ + int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ); + + /** + * \brief Generic wrapper to perform a PKCS#1 verification using the + * mode from the context. Do a public RSA operation and check + * the message digest + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note In case of PKCS#1 v2.1 encoding, see comments on + * \c mbedtls_rsa_rsassa_pss_verify() about md_alg and hash_id. + */ + int mbedtls_rsa_pkcs1_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ); + + /** + * \brief Perform a PKCS#1 v1.5 verification (RSASSA-PKCS1-v1_5-VERIFY) + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ + int mbedtls_rsa_rsassa_pkcs1_v15_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ); + + /** + * \brief Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY) + * (This is the "simple" version.) + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note The hash_id in the RSA context is the one used for the + * verification. md_alg in the function call is the type of + * hash that is verified. According to RFC 3447 it is advised to + * keep both hashes the same. If hash_id in the RSA context is + * unset, the md_alg from the function call is used. + */ + int mbedtls_rsa_rsassa_pss_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ); + + /** + * \brief Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY) + * (This is the version with "full" options.) + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param mgf1_hash_id message digest used for mask generation + * \param expected_salt_len Length of the salt used in padding, use + * MBEDTLS_RSA_SALT_LEN_ANY to accept any salt length + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note The hash_id in the RSA context is ignored. + */ + int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + mbedtls_md_type_t mgf1_hash_id, + int expected_salt_len, + const unsigned char *sig ); + + /** + * \brief Copy the components of an RSA context + * + * \param dst Destination context + * \param src Source context + * + * \return 0 on success, + * MBEDTLS_ERR_MPI_ALLOC_FAILED on memory allocation failure + */ + int mbedtls_rsa_copy( mbedtls_rsa_context *dst, const mbedtls_rsa_context *src ); + + /** + * \brief Free the components of an RSA key + * + * \param ctx RSA Context to free + */ + void mbedtls_rsa_free( mbedtls_rsa_context *ctx ); + + /** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ + int mbedtls_rsa_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_RSA_C */ + +#endif /* rsa.h */ diff --git a/repo/fsrepo/fs_repo.h b/include/ipfs/repo/fsrepo/fs_repo.h similarity index 58% rename from repo/fsrepo/fs_repo.h rename to include/ipfs/repo/fsrepo/fs_repo.h index 368d0eb..b02ba3e 100644 --- a/repo/fsrepo/fs_repo.h +++ b/include/ipfs/repo/fsrepo/fs_repo.h @@ -19,11 +19,17 @@ struct FSRepo { /** * opens a fsrepo - * @param repoPath the path to the repo + * @param repo_path the path to the repo * @param repo where to store the repo info * @return 0 if there was a problem, otherwise 1 */ -int fs_repo_open(char* repoPath, struct FSRepo* repo); +int fs_repo_open(char* repo_path, struct FSRepo* repo); +/*** + * checks to see if the repo is initialized + * @param repo_path the path to the repo + * @returns true(1) if it is initialized, otherwise false(0) + */ +int fs_repo_is_initialized(char* repo_path); #endif /* fs_repo_h */ diff --git a/repo/repo.h b/include/ipfs/repo/repo.h similarity index 84% rename from repo/repo.h rename to include/ipfs/repo/repo.h index 59405da..23f6364 100644 --- a/repo/repo.h +++ b/include/ipfs/repo/repo.h @@ -10,14 +10,14 @@ * @param config a place to put the buffer (must have been pre-allocated) * @returns 0 on error */ -int repo_get_config(struct Config* config); +int repo_get_config(struct RepoConfig* config); /** * Retrieves the config * @param config a place to get the information * @returns 0 on error */ -int repo_set_config(struct Config* config); +int repo_set_config(struct RepoConfig* config); int repo_set_config_key(char* key, void* value); int repo_get_config_key(char* key, void* value); int repo_get_datastore(struct Datastore* datastore); diff --git a/include/mbedtls/aes.h b/include/mbedtls/aes.h new file mode 100644 index 0000000..a36e825 --- /dev/null +++ b/include/mbedtls/aes.h @@ -0,0 +1,297 @@ +/** + * \file aes.h + * + * \brief AES block cipher + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_AES_H +#define MBEDTLS_AES_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +/* padlock.c and aesni.c rely on these values! */ +#define MBEDTLS_AES_ENCRYPT 1 +#define MBEDTLS_AES_DECRYPT 0 + +#define MBEDTLS_ERR_AES_INVALID_KEY_LENGTH -0x0020 /**< Invalid key length. */ +#define MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH -0x0022 /**< Invalid data input length. */ + +#if !defined(MBEDTLS_AES_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief AES context structure + * + * \note buf is able to hold 32 extra bytes, which can be used: + * - for alignment purposes if VIA padlock is used, and/or + * - to simplify key expansion in the 256-bit case by + * generating an extra round key + */ +typedef struct +{ + int nr; /*!< number of rounds */ + uint32_t *rk; /*!< AES round keys */ + uint32_t buf[68]; /*!< unaligned data */ +} +mbedtls_aes_context; + +/** + * \brief Initialize AES context + * + * \param ctx AES context to be initialized + */ +void mbedtls_aes_init( mbedtls_aes_context *ctx ); + +/** + * \brief Clear AES context + * + * \param ctx AES context to be cleared + */ +void mbedtls_aes_free( mbedtls_aes_context *ctx ); + +/** + * \brief AES key schedule (encryption) + * + * \param ctx AES context to be initialized + * \param key encryption key + * \param keybits must be 128, 192 or 256 + * + * \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH + */ +int mbedtls_aes_setkey_enc( mbedtls_aes_context *ctx, const unsigned char *key, + unsigned int keybits ); + +/** + * \brief AES key schedule (decryption) + * + * \param ctx AES context to be initialized + * \param key decryption key + * \param keybits must be 128, 192 or 256 + * + * \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH + */ +int mbedtls_aes_setkey_dec( mbedtls_aes_context *ctx, const unsigned char *key, + unsigned int keybits ); + +/** + * \brief AES-ECB block encryption/decryption + * + * \param ctx AES context + * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT + * \param input 16-byte input block + * \param output 16-byte output block + * + * \return 0 if successful + */ +int mbedtls_aes_crypt_ecb( mbedtls_aes_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief AES-CBC buffer encryption/decryption + * Length should be a multiple of the block + * size (16 bytes) + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx AES context + * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH + */ +int mbedtls_aes_crypt_cbc( mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/** + * \brief AES-CFB128 buffer encryption/decryption. + * + * Note: Due to the nature of CFB you should use the same key schedule for + * both encryption and decryption. So a context initialized with + * mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx AES context + * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT + * \param length length of the input data + * \param iv_off offset in IV (updated after use) + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful + */ +int mbedtls_aes_crypt_cfb128( mbedtls_aes_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ); + +/** + * \brief AES-CFB8 buffer encryption/decryption. + * + * Note: Due to the nature of CFB you should use the same key schedule for + * both encryption and decryption. So a context initialized with + * mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx AES context + * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful + */ +int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ); +#endif /*MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/** + * \brief AES-CTR buffer encryption/decryption + * + * Warning: You have to keep the maximum use of your counter in mind! + * + * Note: Due to the nature of CTR you should use the same key schedule for + * both encryption and decryption. So a context initialized with + * mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT. + * + * \param ctx AES context + * \param length The length of the data + * \param nc_off The offset in the current stream_block (for resuming + * within current cipher stream). The offset pointer to + * should be 0 at the start of a stream. + * \param nonce_counter The 128-bit nonce and counter. + * \param stream_block The saved stream-block for resuming. Is overwritten + * by the function. + * \param input The input data stream + * \param output The output data stream + * + * \return 0 if successful + */ +int mbedtls_aes_crypt_ctr( mbedtls_aes_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[16], + unsigned char stream_block[16], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +/** + * \brief Internal AES block encryption function + * (Only exposed to allow overriding it, + * see MBEDTLS_AES_ENCRYPT_ALT) + * + * \param ctx AES context + * \param input Plaintext block + * \param output Output (ciphertext) block + */ +void mbedtls_aes_encrypt( mbedtls_aes_context *ctx, + const unsigned char input[16], + unsigned char output[16] ); + +/** + * \brief Internal AES block decryption function + * (Only exposed to allow overriding it, + * see MBEDTLS_AES_DECRYPT_ALT) + * + * \param ctx AES context + * \param input Ciphertext block + * \param output Output (plaintext) block + */ +void mbedtls_aes_decrypt( mbedtls_aes_context *ctx, + const unsigned char input[16], + unsigned char output[16] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_AES_ALT */ +#include "aes_alt.h" +#endif /* MBEDTLS_AES_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_aes_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* aes.h */ diff --git a/include/mbedtls/aesni.h b/include/mbedtls/aesni.h new file mode 100644 index 0000000..b1b7f1c --- /dev/null +++ b/include/mbedtls/aesni.h @@ -0,0 +1,111 @@ +/** + * \file aesni.h + * + * \brief AES-NI for hardware AES acceleration on some Intel processors + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_AESNI_H +#define MBEDTLS_AESNI_H + +#include "aes.h" + +#define MBEDTLS_AESNI_AES 0x02000000u +#define MBEDTLS_AESNI_CLMUL 0x00000002u + +#if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && \ + ( defined(__amd64__) || defined(__x86_64__) ) && \ + ! defined(MBEDTLS_HAVE_X86_64) +#define MBEDTLS_HAVE_X86_64 +#endif + +#if defined(MBEDTLS_HAVE_X86_64) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief AES-NI features detection routine + * + * \param what The feature to detect + * (MBEDTLS_AESNI_AES or MBEDTLS_AESNI_CLMUL) + * + * \return 1 if CPU has support for the feature, 0 otherwise + */ +int mbedtls_aesni_has_support( unsigned int what ); + +/** + * \brief AES-NI AES-ECB block en(de)cryption + * + * \param ctx AES context + * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT + * \param input 16-byte input block + * \param output 16-byte output block + * + * \return 0 on success (cannot fail) + */ +int mbedtls_aesni_crypt_ecb( mbedtls_aes_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ); + +/** + * \brief GCM multiplication: c = a * b in GF(2^128) + * + * \param c Result + * \param a First operand + * \param b Second operand + * + * \note Both operands and result are bit strings interpreted as + * elements of GF(2^128) as per the GCM spec. + */ +void mbedtls_aesni_gcm_mult( unsigned char c[16], + const unsigned char a[16], + const unsigned char b[16] ); + +/** + * \brief Compute decryption round keys from encryption round keys + * + * \param invkey Round keys for the equivalent inverse cipher + * \param fwdkey Original round keys (for encryption) + * \param nr Number of rounds (that is, number of round keys minus one) + */ +void mbedtls_aesni_inverse_key( unsigned char *invkey, + const unsigned char *fwdkey, int nr ); + +/** + * \brief Perform key expansion (for encryption) + * + * \param rk Destination buffer where the round keys are written + * \param key Encryption key + * \param bits Key size in bits (must be 128, 192 or 256) + * + * \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH + */ +int mbedtls_aesni_setkey_enc( unsigned char *rk, + const unsigned char *key, + size_t bits ); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_HAVE_X86_64 */ + +#endif /* MBEDTLS_AESNI_H */ diff --git a/include/mbedtls/arc4.h b/include/mbedtls/arc4.h new file mode 100644 index 0000000..5fc5395 --- /dev/null +++ b/include/mbedtls/arc4.h @@ -0,0 +1,113 @@ +/** + * \file arc4.h + * + * \brief The ARCFOUR stream cipher + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ARC4_H +#define MBEDTLS_ARC4_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +#if !defined(MBEDTLS_ARC4_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief ARC4 context structure + */ +typedef struct +{ + int x; /*!< permutation index */ + int y; /*!< permutation index */ + unsigned char m[256]; /*!< permutation table */ +} +mbedtls_arc4_context; + +/** + * \brief Initialize ARC4 context + * + * \param ctx ARC4 context to be initialized + */ +void mbedtls_arc4_init( mbedtls_arc4_context *ctx ); + +/** + * \brief Clear ARC4 context + * + * \param ctx ARC4 context to be cleared + */ +void mbedtls_arc4_free( mbedtls_arc4_context *ctx ); + +/** + * \brief ARC4 key schedule + * + * \param ctx ARC4 context to be setup + * \param key the secret key + * \param keylen length of the key, in bytes + */ +void mbedtls_arc4_setup( mbedtls_arc4_context *ctx, const unsigned char *key, + unsigned int keylen ); + +/** + * \brief ARC4 cipher function + * + * \param ctx ARC4 context + * \param length length of the input data + * \param input buffer holding the input data + * \param output buffer for the output data + * + * \return 0 if successful + */ +int mbedtls_arc4_crypt( mbedtls_arc4_context *ctx, size_t length, const unsigned char *input, + unsigned char *output ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_ARC4_ALT */ +#include "arc4_alt.h" +#endif /* MBEDTLS_ARC4_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_arc4_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* arc4.h */ diff --git a/include/mbedtls/asn1.h b/include/mbedtls/asn1.h new file mode 100644 index 0000000..082832c --- /dev/null +++ b/include/mbedtls/asn1.h @@ -0,0 +1,342 @@ +/** + * \file asn1.h + * + * \brief Generic ASN.1 parsing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ASN1_H +#define MBEDTLS_ASN1_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +#if defined(MBEDTLS_BIGNUM_C) +#include "bignum.h" +#endif + +/** + * \addtogroup asn1_module + * \{ + */ + +/** + * \name ASN1 Error codes + * These error codes are OR'ed to X509 error codes for + * higher error granularity. + * ASN1 is a standard to specify data structures. + * \{ + */ +#define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060 /**< Out of data when parsing an ASN1 data structure. */ +#define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062 /**< ASN1 tag was of an unexpected value. */ +#define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064 /**< Error when trying to determine the length or invalid length. */ +#define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066 /**< Actual length differs from expected length. */ +#define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068 /**< Data is invalid. (not used) */ +#define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A /**< Memory allocation failed */ +#define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C /**< Buffer too small when writing ASN.1 data structure. */ + +/* \} name */ + +/** + * \name DER constants + * These constants comply with DER encoded the ANS1 type tags. + * DER encoding uses hexadecimal representation. + * An example DER sequence is:\n + * - 0x02 -- tag indicating INTEGER + * - 0x01 -- length in octets + * - 0x05 -- value + * Such sequences are typically read into \c ::mbedtls_x509_buf. + * \{ + */ +#define MBEDTLS_ASN1_BOOLEAN 0x01 +#define MBEDTLS_ASN1_INTEGER 0x02 +#define MBEDTLS_ASN1_BIT_STRING 0x03 +#define MBEDTLS_ASN1_OCTET_STRING 0x04 +#define MBEDTLS_ASN1_NULL 0x05 +#define MBEDTLS_ASN1_OID 0x06 +#define MBEDTLS_ASN1_UTF8_STRING 0x0C +#define MBEDTLS_ASN1_SEQUENCE 0x10 +#define MBEDTLS_ASN1_SET 0x11 +#define MBEDTLS_ASN1_PRINTABLE_STRING 0x13 +#define MBEDTLS_ASN1_T61_STRING 0x14 +#define MBEDTLS_ASN1_IA5_STRING 0x16 +#define MBEDTLS_ASN1_UTC_TIME 0x17 +#define MBEDTLS_ASN1_GENERALIZED_TIME 0x18 +#define MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C +#define MBEDTLS_ASN1_BMP_STRING 0x1E +#define MBEDTLS_ASN1_PRIMITIVE 0x00 +#define MBEDTLS_ASN1_CONSTRUCTED 0x20 +#define MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80 +/* \} name */ +/* \} addtogroup asn1_module */ + +/** Returns the size of the binary string, without the trailing \\0 */ +#define MBEDTLS_OID_SIZE(x) (sizeof(x) - 1) + +/** + * Compares an mbedtls_asn1_buf structure to a reference OID. + * + * Only works for 'defined' oid_str values (MBEDTLS_OID_HMAC_SHA1), you cannot use a + * 'unsigned char *oid' here! + */ +#define MBEDTLS_OID_CMP(oid_str, oid_buf) \ + ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len ) || \ + memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 ) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \name Functions to parse ASN.1 data structures + * \{ + */ + +/** + * Type-length-value structure that allows for ASN1 using DER. + */ +typedef struct mbedtls_asn1_buf +{ + int tag; /**< ASN1 type, e.g. MBEDTLS_ASN1_UTF8_STRING. */ + size_t len; /**< ASN1 length, in octets. */ + unsigned char *p; /**< ASN1 data, e.g. in ASCII. */ +} +mbedtls_asn1_buf; + +/** + * Container for ASN1 bit strings. + */ +typedef struct mbedtls_asn1_bitstring +{ + size_t len; /**< ASN1 length, in octets. */ + unsigned char unused_bits; /**< Number of unused bits at the end of the string */ + unsigned char *p; /**< Raw ASN1 data for the bit string */ +} +mbedtls_asn1_bitstring; + +/** + * Container for a sequence of ASN.1 items + */ +typedef struct mbedtls_asn1_sequence +{ + mbedtls_asn1_buf buf; /**< Buffer containing the given ASN.1 item. */ + struct mbedtls_asn1_sequence *next; /**< The next entry in the sequence. */ +} +mbedtls_asn1_sequence; + +/** + * Container for a sequence or list of 'named' ASN.1 data items + */ +typedef struct mbedtls_asn1_named_data +{ + mbedtls_asn1_buf oid; /**< The object identifier. */ + mbedtls_asn1_buf val; /**< The named value. */ + struct mbedtls_asn1_named_data *next; /**< The next entry in the sequence. */ + unsigned char next_merged; /**< Merge next item into the current one? */ +} +mbedtls_asn1_named_data; + +/** + * \brief Get the length of an ASN.1 element. + * Updates the pointer to immediately behind the length. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param len The variable that will receive the value + * + * \return 0 if successful, MBEDTLS_ERR_ASN1_OUT_OF_DATA on reaching + * end of data, MBEDTLS_ERR_ASN1_INVALID_LENGTH if length is + * unparseable. + */ +int mbedtls_asn1_get_len( unsigned char **p, + const unsigned char *end, + size_t *len ); + +/** + * \brief Get the tag and length of the tag. Check for the requested tag. + * Updates the pointer to immediately behind the tag and length. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param len The variable that will receive the length + * \param tag The expected tag + * + * \return 0 if successful, MBEDTLS_ERR_ASN1_UNEXPECTED_TAG if tag did + * not match requested tag, or another specific ASN.1 error code. + */ +int mbedtls_asn1_get_tag( unsigned char **p, + const unsigned char *end, + size_t *len, int tag ); + +/** + * \brief Retrieve a boolean ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param val The variable that will receive the value + * + * \return 0 if successful or a specific ASN.1 error code. + */ +int mbedtls_asn1_get_bool( unsigned char **p, + const unsigned char *end, + int *val ); + +/** + * \brief Retrieve an integer ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param val The variable that will receive the value + * + * \return 0 if successful or a specific ASN.1 error code. + */ +int mbedtls_asn1_get_int( unsigned char **p, + const unsigned char *end, + int *val ); + +/** + * \brief Retrieve a bitstring ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param bs The variable that will receive the value + * + * \return 0 if successful or a specific ASN.1 error code. + */ +int mbedtls_asn1_get_bitstring( unsigned char **p, const unsigned char *end, + mbedtls_asn1_bitstring *bs); + +/** + * \brief Retrieve a bitstring ASN.1 tag without unused bits and its + * value. + * Updates the pointer to the beginning of the bit/octet string. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param len Length of the actual bit/octect string in bytes + * + * \return 0 if successful or a specific ASN.1 error code. + */ +int mbedtls_asn1_get_bitstring_null( unsigned char **p, const unsigned char *end, + size_t *len ); + +/** + * \brief Parses and splits an ASN.1 "SEQUENCE OF " + * Updated the pointer to immediately behind the full sequence tag. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param cur First variable in the chain to fill + * \param tag Type of sequence + * + * \return 0 if successful or a specific ASN.1 error code. + */ +int mbedtls_asn1_get_sequence_of( unsigned char **p, + const unsigned char *end, + mbedtls_asn1_sequence *cur, + int tag); + +#if defined(MBEDTLS_BIGNUM_C) +/** + * \brief Retrieve a MPI value from an integer ASN.1 tag. + * Updates the pointer to immediately behind the full tag. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param X The MPI that will receive the value + * + * \return 0 if successful or a specific ASN.1 or MPI error code. + */ +int mbedtls_asn1_get_mpi( unsigned char **p, + const unsigned char *end, + mbedtls_mpi *X ); +#endif /* MBEDTLS_BIGNUM_C */ + +/** + * \brief Retrieve an AlgorithmIdentifier ASN.1 sequence. + * Updates the pointer to immediately behind the full + * AlgorithmIdentifier. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param alg The buffer to receive the OID + * \param params The buffer to receive the params (if any) + * + * \return 0 if successful or a specific ASN.1 or MPI error code. + */ +int mbedtls_asn1_get_alg( unsigned char **p, + const unsigned char *end, + mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params ); + +/** + * \brief Retrieve an AlgorithmIdentifier ASN.1 sequence with NULL or no + * params. + * Updates the pointer to immediately behind the full + * AlgorithmIdentifier. + * + * \param p The position in the ASN.1 data + * \param end End of data + * \param alg The buffer to receive the OID + * + * \return 0 if successful or a specific ASN.1 or MPI error code. + */ +int mbedtls_asn1_get_alg_null( unsigned char **p, + const unsigned char *end, + mbedtls_asn1_buf *alg ); + +/** + * \brief Find a specific named_data entry in a sequence or list based on + * the OID. + * + * \param list The list to seek through + * \param oid The OID to look for + * \param len Size of the OID + * + * \return NULL if not found, or a pointer to the existing entry. + */ +mbedtls_asn1_named_data *mbedtls_asn1_find_named_data( mbedtls_asn1_named_data *list, + const char *oid, size_t len ); + +/** + * \brief Free a mbedtls_asn1_named_data entry + * + * \param entry The named data entry to free + */ +void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *entry ); + +/** + * \brief Free all entries in a mbedtls_asn1_named_data list + * Head will be set to NULL + * + * \param head Pointer to the head of the list of named data entries to free + */ +void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head ); + +#ifdef __cplusplus +} +#endif + +#endif /* asn1.h */ diff --git a/include/mbedtls/asn1write.h b/include/mbedtls/asn1write.h new file mode 100644 index 0000000..73ff32b --- /dev/null +++ b/include/mbedtls/asn1write.h @@ -0,0 +1,239 @@ +/** + * \file asn1write.h + * + * \brief ASN.1 buffer writing functionality + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ASN1_WRITE_H +#define MBEDTLS_ASN1_WRITE_H + +#include "asn1.h" + +#define MBEDTLS_ASN1_CHK_ADD(g, f) do { if( ( ret = f ) < 0 ) return( ret ); else \ + g += ret; } while( 0 ) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Write a length field in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param len the length to write + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start, size_t len ); + +/** + * \brief Write a ASN.1 tag in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param tag the tag to write + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_tag( unsigned char **p, unsigned char *start, + unsigned char tag ); + +/** + * \brief Write raw buffer data + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param buf data buffer to write + * \param size length of the data buffer + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_raw_buffer( unsigned char **p, unsigned char *start, + const unsigned char *buf, size_t size ); + +#if defined(MBEDTLS_BIGNUM_C) +/** + * \brief Write a big number (MBEDTLS_ASN1_INTEGER) in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param X the MPI to write + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_mpi( unsigned char **p, unsigned char *start, const mbedtls_mpi *X ); +#endif /* MBEDTLS_BIGNUM_C */ + +/** + * \brief Write a NULL tag (MBEDTLS_ASN1_NULL) with zero data in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_null( unsigned char **p, unsigned char *start ); + +/** + * \brief Write an OID tag (MBEDTLS_ASN1_OID) and data in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param oid the OID to write + * \param oid_len length of the OID + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_oid( unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len ); + +/** + * \brief Write an AlgorithmIdentifier sequence in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param oid the OID of the algorithm + * \param oid_len length of the OID + * \param par_len length of parameters, which must be already written. + * If 0, NULL parameters are added + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len, + size_t par_len ); + +/** + * \brief Write a boolean tag (MBEDTLS_ASN1_BOOLEAN) and value in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param boolean 0 or 1 + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_bool( unsigned char **p, unsigned char *start, int boolean ); + +/** + * \brief Write an int tag (MBEDTLS_ASN1_INTEGER) and value in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param val the integer value + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_int( unsigned char **p, unsigned char *start, int val ); + +/** + * \brief Write a printable string tag (MBEDTLS_ASN1_PRINTABLE_STRING) and + * value in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param text the text to write + * \param text_len length of the text + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_printable_string( unsigned char **p, unsigned char *start, + const char *text, size_t text_len ); + +/** + * \brief Write an IA5 string tag (MBEDTLS_ASN1_IA5_STRING) and + * value in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param text the text to write + * \param text_len length of the text + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_ia5_string( unsigned char **p, unsigned char *start, + const char *text, size_t text_len ); + +/** + * \brief Write a bitstring tag (MBEDTLS_ASN1_BIT_STRING) and + * value in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param buf the bitstring + * \param bits the total number of bits in the bitstring + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_bitstring( unsigned char **p, unsigned char *start, + const unsigned char *buf, size_t bits ); + +/** + * \brief Write an octet string tag (MBEDTLS_ASN1_OCTET_STRING) and + * value in ASN.1 format + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param buf data buffer to write + * \param size length of the data buffer + * + * \return the length written or a negative error code + */ +int mbedtls_asn1_write_octet_string( unsigned char **p, unsigned char *start, + const unsigned char *buf, size_t size ); + +/** + * \brief Create or find a specific named_data entry for writing in a + * sequence or list based on the OID. If not already in there, + * a new entry is added to the head of the list. + * Warning: Destructive behaviour for the val data! + * + * \param list Pointer to the location of the head of the list to seek + * through (will be updated in case of a new entry) + * \param oid The OID to look for + * \param oid_len Size of the OID + * \param val Data to store (can be NULL if you want to fill it by hand) + * \param val_len Minimum length of the data buffer needed + * + * \return NULL if if there was a memory allocation error, or a pointer + * to the new / existing entry. + */ +mbedtls_asn1_named_data *mbedtls_asn1_store_named_data( mbedtls_asn1_named_data **list, + const char *oid, size_t oid_len, + const unsigned char *val, + size_t val_len ); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_ASN1_WRITE_H */ diff --git a/include/mbedtls/base64.h b/include/mbedtls/base64.h new file mode 100644 index 0000000..352c652 --- /dev/null +++ b/include/mbedtls/base64.h @@ -0,0 +1,88 @@ +/** + * \file base64.h + * + * \brief RFC 1521 base64 encoding/decoding + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_BASE64_H +#define MBEDTLS_BASE64_H + +#include + +#define MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL -0x002A /**< Output buffer too small. */ +#define MBEDTLS_ERR_BASE64_INVALID_CHARACTER -0x002C /**< Invalid character in input. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Encode a buffer into base64 format + * + * \param dst destination buffer + * \param dlen size of the destination buffer + * \param olen number of bytes written + * \param src source buffer + * \param slen amount of data to be encoded + * + * \return 0 if successful, or MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL. + * *olen is always updated to reflect the amount + * of data that has (or would have) been written. + * If that length cannot be represented, then no data is + * written to the buffer and *olen is set to the maximum + * length representable as a size_t. + * + * \note Call this function with dlen = 0 to obtain the + * required buffer size in *olen + */ +int mbedtls_base64_encode( unsigned char *dst, size_t dlen, size_t *olen, + const unsigned char *src, size_t slen ); + +/** + * \brief Decode a base64-formatted buffer + * + * \param dst destination buffer (can be NULL for checking size) + * \param dlen size of the destination buffer + * \param olen number of bytes written + * \param src source buffer + * \param slen amount of data to be decoded + * + * \return 0 if successful, MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL, or + * MBEDTLS_ERR_BASE64_INVALID_CHARACTER if the input data is + * not correct. *olen is always updated to reflect the amount + * of data that has (or would have) been written. + * + * \note Call this function with *dst = NULL or dlen = 0 to obtain + * the required buffer size in *olen + */ +int mbedtls_base64_decode( unsigned char *dst, size_t dlen, size_t *olen, + const unsigned char *src, size_t slen ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_base64_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* base64.h */ diff --git a/include/mbedtls/bignum.h b/include/mbedtls/bignum.h new file mode 100644 index 0000000..aa51556 --- /dev/null +++ b/include/mbedtls/bignum.h @@ -0,0 +1,717 @@ +/** + * \file bignum.h + * + * \brief Multi-precision integer library + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_BIGNUM_H +#define MBEDTLS_BIGNUM_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#if defined(MBEDTLS_FS_IO) +#include +#endif + +#define MBEDTLS_ERR_MPI_FILE_IO_ERROR -0x0002 /**< An error occurred while reading from or writing to a file. */ +#define MBEDTLS_ERR_MPI_BAD_INPUT_DATA -0x0004 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_MPI_INVALID_CHARACTER -0x0006 /**< There is an invalid character in the digit string. */ +#define MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL -0x0008 /**< The buffer is too small to write to. */ +#define MBEDTLS_ERR_MPI_NEGATIVE_VALUE -0x000A /**< The input arguments are negative or result in illegal output. */ +#define MBEDTLS_ERR_MPI_DIVISION_BY_ZERO -0x000C /**< The input argument for division is zero, which is not allowed. */ +#define MBEDTLS_ERR_MPI_NOT_ACCEPTABLE -0x000E /**< The input arguments are not acceptable. */ +#define MBEDTLS_ERR_MPI_ALLOC_FAILED -0x0010 /**< Memory allocation failed. */ + +#define MBEDTLS_MPI_CHK(f) do { if( ( ret = f ) != 0 ) goto cleanup; } while( 0 ) + +/* + * Maximum size MPIs are allowed to grow to in number of limbs. + */ +#define MBEDTLS_MPI_MAX_LIMBS 10000 + +#if !defined(MBEDTLS_MPI_WINDOW_SIZE) +/* + * Maximum window size used for modular exponentiation. Default: 6 + * Minimum value: 1. Maximum value: 6. + * + * Result is an array of ( 2 << MBEDTLS_MPI_WINDOW_SIZE ) MPIs used + * for the sliding window calculation. (So 64 by default) + * + * Reduction in size, reduces speed. + */ +#define MBEDTLS_MPI_WINDOW_SIZE 6 /**< Maximum windows size used. */ +#endif /* !MBEDTLS_MPI_WINDOW_SIZE */ + +#if !defined(MBEDTLS_MPI_MAX_SIZE) +/* + * Maximum size of MPIs allowed in bits and bytes for user-MPIs. + * ( Default: 512 bytes => 4096 bits, Maximum tested: 2048 bytes => 16384 bits ) + * + * Note: Calculations can results temporarily in larger MPIs. So the number + * of limbs required (MBEDTLS_MPI_MAX_LIMBS) is higher. + */ +#define MBEDTLS_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */ +#endif /* !MBEDTLS_MPI_MAX_SIZE */ + +#define MBEDTLS_MPI_MAX_BITS ( 8 * MBEDTLS_MPI_MAX_SIZE ) /**< Maximum number of bits for usable MPIs. */ + +/* + * When reading from files with mbedtls_mpi_read_file() and writing to files with + * mbedtls_mpi_write_file() the buffer should have space + * for a (short) label, the MPI (in the provided radix), the newline + * characters and the '\0'. + * + * By default we assume at least a 10 char label, a minimum radix of 10 + * (decimal) and a maximum of 4096 bit numbers (1234 decimal chars). + * Autosized at compile time for at least a 10 char label, a minimum radix + * of 10 (decimal) for a number of MBEDTLS_MPI_MAX_BITS size. + * + * This used to be statically sized to 1250 for a maximum of 4096 bit + * numbers (1234 decimal chars). + * + * Calculate using the formula: + * MBEDTLS_MPI_RW_BUFFER_SIZE = ceil(MBEDTLS_MPI_MAX_BITS / ln(10) * ln(2)) + + * LabelSize + 6 + */ +#define MBEDTLS_MPI_MAX_BITS_SCALE100 ( 100 * MBEDTLS_MPI_MAX_BITS ) +#define MBEDTLS_LN_2_DIV_LN_10_SCALE100 332 +#define MBEDTLS_MPI_RW_BUFFER_SIZE ( ((MBEDTLS_MPI_MAX_BITS_SCALE100 + MBEDTLS_LN_2_DIV_LN_10_SCALE100 - 1) / MBEDTLS_LN_2_DIV_LN_10_SCALE100) + 10 + 6 ) + +/* + * Define the base integer type, architecture-wise. + * + * 32-bit integers can be forced on 64-bit arches (eg. for testing purposes) + * by defining MBEDTLS_HAVE_INT32 and undefining MBEDTLS_HAVE_ASM + */ +#if ( ! defined(MBEDTLS_HAVE_INT32) && \ + defined(_MSC_VER) && defined(_M_AMD64) ) + #define MBEDTLS_HAVE_INT64 + typedef int64_t mbedtls_mpi_sint; + typedef uint64_t mbedtls_mpi_uint; +#else + #if ( ! defined(MBEDTLS_HAVE_INT32) && \ + defined(__GNUC__) && ( \ + defined(__amd64__) || defined(__x86_64__) || \ + defined(__ppc64__) || defined(__powerpc64__) || \ + defined(__ia64__) || defined(__alpha__) || \ + (defined(__sparc__) && defined(__arch64__)) || \ + defined(__s390x__) || defined(__mips64) ) ) + #define MBEDTLS_HAVE_INT64 + typedef int64_t mbedtls_mpi_sint; + typedef uint64_t mbedtls_mpi_uint; + /* mbedtls_t_udbl defined as 128-bit unsigned int */ + typedef unsigned int mbedtls_t_udbl __attribute__((mode(TI))); + #define MBEDTLS_HAVE_UDBL + #else + #define MBEDTLS_HAVE_INT32 + typedef int32_t mbedtls_mpi_sint; + typedef uint32_t mbedtls_mpi_uint; + typedef uint64_t mbedtls_t_udbl; + #define MBEDTLS_HAVE_UDBL + #endif /* !MBEDTLS_HAVE_INT32 && __GNUC__ && 64-bit platform */ +#endif /* !MBEDTLS_HAVE_INT32 && _MSC_VER && _M_AMD64 */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief MPI structure + */ +typedef struct +{ + int s; /*!< integer sign */ + size_t n; /*!< total # of limbs */ + mbedtls_mpi_uint *p; /*!< pointer to limbs */ +} +mbedtls_mpi; + +/** + * \brief Initialize one MPI (make internal references valid) + * This just makes it ready to be set or freed, + * but does not define a value for the MPI. + * + * \param X One MPI to initialize. + */ +void mbedtls_mpi_init( mbedtls_mpi *X ); + +/** + * \brief Unallocate one MPI + * + * \param X One MPI to unallocate. + */ +void mbedtls_mpi_free( mbedtls_mpi *X ); + +/** + * \brief Enlarge to the specified number of limbs + * + * \param X MPI to grow + * \param nblimbs The target number of limbs + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_grow( mbedtls_mpi *X, size_t nblimbs ); + +/** + * \brief Resize down, keeping at least the specified number of limbs + * + * \param X MPI to shrink + * \param nblimbs The minimum number of limbs to keep + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_shrink( mbedtls_mpi *X, size_t nblimbs ); + +/** + * \brief Copy the contents of Y into X + * + * \param X Destination MPI + * \param Y Source MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_copy( mbedtls_mpi *X, const mbedtls_mpi *Y ); + +/** + * \brief Swap the contents of X and Y + * + * \param X First MPI value + * \param Y Second MPI value + */ +void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y ); + +/** + * \brief Safe conditional assignement X = Y if assign is 1 + * + * \param X MPI to conditionally assign to + * \param Y Value to be assigned + * \param assign 1: perform the assignment, 0: keep X's original value + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * + * \note This function is equivalent to + * if( assign ) mbedtls_mpi_copy( X, Y ); + * except that it avoids leaking any information about whether + * the assignment was done or not (the above code may leak + * information through branch prediction and/or memory access + * patterns analysis). + */ +int mbedtls_mpi_safe_cond_assign( mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned char assign ); + +/** + * \brief Safe conditional swap X <-> Y if swap is 1 + * + * \param X First mbedtls_mpi value + * \param Y Second mbedtls_mpi value + * \param assign 1: perform the swap, 0: keep X and Y's original values + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * + * \note This function is equivalent to + * if( assign ) mbedtls_mpi_swap( X, Y ); + * except that it avoids leaking any information about whether + * the assignment was done or not (the above code may leak + * information through branch prediction and/or memory access + * patterns analysis). + */ +int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char assign ); + +/** + * \brief Set value from integer + * + * \param X MPI to set + * \param z Value to use + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_lset( mbedtls_mpi *X, mbedtls_mpi_sint z ); + +/** + * \brief Get a specific bit from X + * + * \param X MPI to use + * \param pos Zero-based index of the bit in X + * + * \return Either a 0 or a 1 + */ +int mbedtls_mpi_get_bit( const mbedtls_mpi *X, size_t pos ); + +/** + * \brief Set a bit of X to a specific value of 0 or 1 + * + * \note Will grow X if necessary to set a bit to 1 in a not yet + * existing limb. Will not grow if bit should be set to 0 + * + * \param X MPI to use + * \param pos Zero-based index of the bit in X + * \param val The value to set the bit to (0 or 1) + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_BAD_INPUT_DATA if val is not 0 or 1 + */ +int mbedtls_mpi_set_bit( mbedtls_mpi *X, size_t pos, unsigned char val ); + +/** + * \brief Return the number of zero-bits before the least significant + * '1' bit + * + * Note: Thus also the zero-based index of the least significant '1' bit + * + * \param X MPI to use + */ +size_t mbedtls_mpi_lsb( const mbedtls_mpi *X ); + +/** + * \brief Return the number of bits up to and including the most + * significant '1' bit' + * + * Note: Thus also the one-based index of the most significant '1' bit + * + * \param X MPI to use + */ +size_t mbedtls_mpi_bitlen( const mbedtls_mpi *X ); + +/** + * \brief Return the total size in bytes + * + * \param X MPI to use + */ +size_t mbedtls_mpi_size( const mbedtls_mpi *X ); + +/** + * \brief Import from an ASCII string + * + * \param X Destination MPI + * \param radix Input numeric base + * \param s Null-terminated string buffer + * + * \return 0 if successful, or a MBEDTLS_ERR_MPI_XXX error code + */ +int mbedtls_mpi_read_string( mbedtls_mpi *X, int radix, const char *s ); + +/** + * \brief Export into an ASCII string + * + * \param X Source MPI + * \param radix Output numeric base + * \param buf Buffer to write the string to + * \param buflen Length of buf + * \param olen Length of the string written, including final NUL byte + * + * \return 0 if successful, or a MBEDTLS_ERR_MPI_XXX error code. + * *olen is always updated to reflect the amount + * of data that has (or would have) been written. + * + * \note Call this function with buflen = 0 to obtain the + * minimum required buffer size in *olen. + */ +int mbedtls_mpi_write_string( const mbedtls_mpi *X, int radix, + char *buf, size_t buflen, size_t *olen ); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Read X from an opened file + * + * \param X Destination MPI + * \param radix Input numeric base + * \param fin Input file handle + * + * \return 0 if successful, MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if + * the file read buffer is too small or a + * MBEDTLS_ERR_MPI_XXX error code + */ +int mbedtls_mpi_read_file( mbedtls_mpi *X, int radix, FILE *fin ); + +/** + * \brief Write X into an opened file, or stdout if fout is NULL + * + * \param p Prefix, can be NULL + * \param X Source MPI + * \param radix Output numeric base + * \param fout Output file handle (can be NULL) + * + * \return 0 if successful, or a MBEDTLS_ERR_MPI_XXX error code + * + * \note Set fout == NULL to print X on the console. + */ +int mbedtls_mpi_write_file( const char *p, const mbedtls_mpi *X, int radix, FILE *fout ); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief Import X from unsigned binary data, big endian + * + * \param X Destination MPI + * \param buf Input buffer + * \param buflen Input buffer size + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_read_binary( mbedtls_mpi *X, const unsigned char *buf, size_t buflen ); + +/** + * \brief Export X into unsigned binary data, big endian. + * Always fills the whole buffer, which will start with zeros + * if the number is smaller. + * + * \param X Source MPI + * \param buf Output buffer + * \param buflen Output buffer size + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if buf isn't large enough + */ +int mbedtls_mpi_write_binary( const mbedtls_mpi *X, unsigned char *buf, size_t buflen ); + +/** + * \brief Left-shift: X <<= count + * + * \param X MPI to shift + * \param count Amount to shift + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_shift_l( mbedtls_mpi *X, size_t count ); + +/** + * \brief Right-shift: X >>= count + * + * \param X MPI to shift + * \param count Amount to shift + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_shift_r( mbedtls_mpi *X, size_t count ); + +/** + * \brief Compare unsigned values + * + * \param X Left-hand MPI + * \param Y Right-hand MPI + * + * \return 1 if |X| is greater than |Y|, + * -1 if |X| is lesser than |Y| or + * 0 if |X| is equal to |Y| + */ +int mbedtls_mpi_cmp_abs( const mbedtls_mpi *X, const mbedtls_mpi *Y ); + +/** + * \brief Compare signed values + * + * \param X Left-hand MPI + * \param Y Right-hand MPI + * + * \return 1 if X is greater than Y, + * -1 if X is lesser than Y or + * 0 if X is equal to Y + */ +int mbedtls_mpi_cmp_mpi( const mbedtls_mpi *X, const mbedtls_mpi *Y ); + +/** + * \brief Compare signed values + * + * \param X Left-hand MPI + * \param z The integer value to compare to + * + * \return 1 if X is greater than z, + * -1 if X is lesser than z or + * 0 if X is equal to z + */ +int mbedtls_mpi_cmp_int( const mbedtls_mpi *X, mbedtls_mpi_sint z ); + +/** + * \brief Unsigned addition: X = |A| + |B| + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_add_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Unsigned subtraction: X = |A| - |B| + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_NEGATIVE_VALUE if B is greater than A + */ +int mbedtls_mpi_sub_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Signed addition: X = A + B + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_add_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Signed subtraction: X = A - B + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_sub_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Signed addition: X = A + b + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param b The integer value to add + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_add_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b ); + +/** + * \brief Signed subtraction: X = A - b + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param b The integer value to subtract + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_sub_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b ); + +/** + * \brief Baseline multiplication: X = A * B + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_mul_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Baseline multiplication: X = A * b + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param b The unsigned integer value to multiply with + * + * \note b is unsigned + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_mul_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_uint b ); + +/** + * \brief Division by mbedtls_mpi: A = Q * B + R + * + * \param Q Destination MPI for the quotient + * \param R Destination MPI for the rest value + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if B == 0 + * + * \note Either Q or R can be NULL. + */ +int mbedtls_mpi_div_mpi( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Division by int: A = Q * b + R + * + * \param Q Destination MPI for the quotient + * \param R Destination MPI for the rest value + * \param A Left-hand MPI + * \param b Integer to divide by + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if b == 0 + * + * \note Either Q or R can be NULL. + */ +int mbedtls_mpi_div_int( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, mbedtls_mpi_sint b ); + +/** + * \brief Modulo: R = A mod B + * + * \param R Destination MPI for the rest value + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if B == 0, + * MBEDTLS_ERR_MPI_NEGATIVE_VALUE if B < 0 + */ +int mbedtls_mpi_mod_mpi( mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Modulo: r = A mod b + * + * \param r Destination mbedtls_mpi_uint + * \param A Left-hand MPI + * \param b Integer to divide by + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if b == 0, + * MBEDTLS_ERR_MPI_NEGATIVE_VALUE if b < 0 + */ +int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_sint b ); + +/** + * \brief Sliding-window exponentiation: X = A^E mod N + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param E Exponent MPI + * \param N Modular MPI + * \param _RR Speed-up MPI used for recalculations + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_BAD_INPUT_DATA if N is negative or even or + * if E is negative + * + * \note _RR is used to avoid re-computing R*R mod N across + * multiple calls, which speeds up things a bit. It can + * be set to NULL if the extra performance is unneeded. + */ +int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *E, const mbedtls_mpi *N, mbedtls_mpi *_RR ); + +/** + * \brief Fill an MPI X with size bytes of random + * + * \param X Destination MPI + * \param size Size in bytes + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_fill_random( mbedtls_mpi *X, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Greatest common divisor: G = gcd(A, B) + * + * \param G Destination MPI + * \param A Left-hand MPI + * \param B Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_mpi_gcd( mbedtls_mpi *G, const mbedtls_mpi *A, const mbedtls_mpi *B ); + +/** + * \brief Modular inverse: X = A^-1 mod N + * + * \param X Destination MPI + * \param A Left-hand MPI + * \param N Right-hand MPI + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_BAD_INPUT_DATA if N is negative or nil + MBEDTLS_ERR_MPI_NOT_ACCEPTABLE if A has no inverse mod N + */ +int mbedtls_mpi_inv_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *N ); + +/** + * \brief Miller-Rabin primality test + * + * \param X MPI to check + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful (probably prime), + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_NOT_ACCEPTABLE if X is not prime + */ +int mbedtls_mpi_is_prime( const mbedtls_mpi *X, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Prime number generation + * + * \param X Destination MPI + * \param nbits Required size of X in bits + * ( 3 <= nbits <= MBEDTLS_MPI_MAX_BITS ) + * \param dh_flag If 1, then (X-1)/2 will be prime too + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful (probably prime), + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_MPI_BAD_INPUT_DATA if nbits is < 3 + */ +int mbedtls_mpi_gen_prime( mbedtls_mpi *X, size_t nbits, int dh_flag, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_mpi_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* bignum.h */ diff --git a/include/mbedtls/blowfish.h b/include/mbedtls/blowfish.h new file mode 100644 index 0000000..34626ee --- /dev/null +++ b/include/mbedtls/blowfish.h @@ -0,0 +1,203 @@ +/** + * \file blowfish.h + * + * \brief Blowfish block cipher + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_BLOWFISH_H +#define MBEDTLS_BLOWFISH_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#define MBEDTLS_BLOWFISH_ENCRYPT 1 +#define MBEDTLS_BLOWFISH_DECRYPT 0 +#define MBEDTLS_BLOWFISH_MAX_KEY_BITS 448 +#define MBEDTLS_BLOWFISH_MIN_KEY_BITS 32 +#define MBEDTLS_BLOWFISH_ROUNDS 16 /**< Rounds to use. When increasing this value, make sure to extend the initialisation vectors */ +#define MBEDTLS_BLOWFISH_BLOCKSIZE 8 /* Blowfish uses 64 bit blocks */ + +#define MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH -0x0016 /**< Invalid key length. */ +#define MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH -0x0018 /**< Invalid data input length. */ + +#if !defined(MBEDTLS_BLOWFISH_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Blowfish context structure + */ +typedef struct +{ + uint32_t P[MBEDTLS_BLOWFISH_ROUNDS + 2]; /*!< Blowfish round keys */ + uint32_t S[4][256]; /*!< key dependent S-boxes */ +} +mbedtls_blowfish_context; + +/** + * \brief Initialize Blowfish context + * + * \param ctx Blowfish context to be initialized + */ +void mbedtls_blowfish_init( mbedtls_blowfish_context *ctx ); + +/** + * \brief Clear Blowfish context + * + * \param ctx Blowfish context to be cleared + */ +void mbedtls_blowfish_free( mbedtls_blowfish_context *ctx ); + +/** + * \brief Blowfish key schedule + * + * \param ctx Blowfish context to be initialized + * \param key encryption key + * \param keybits must be between 32 and 448 bits + * + * \return 0 if successful, or MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH + */ +int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx, const unsigned char *key, + unsigned int keybits ); + +/** + * \brief Blowfish-ECB block encryption/decryption + * + * \param ctx Blowfish context + * \param mode MBEDTLS_BLOWFISH_ENCRYPT or MBEDTLS_BLOWFISH_DECRYPT + * \param input 8-byte input block + * \param output 8-byte output block + * + * \return 0 if successful + */ +int mbedtls_blowfish_crypt_ecb( mbedtls_blowfish_context *ctx, + int mode, + const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE], + unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE] ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief Blowfish-CBC buffer encryption/decryption + * Length should be a multiple of the block + * size (8 bytes) + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx Blowfish context + * \param mode MBEDTLS_BLOWFISH_ENCRYPT or MBEDTLS_BLOWFISH_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful, or + * MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH + */ +int mbedtls_blowfish_crypt_cbc( mbedtls_blowfish_context *ctx, + int mode, + size_t length, + unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/** + * \brief Blowfish CFB buffer encryption/decryption. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx Blowfish context + * \param mode MBEDTLS_BLOWFISH_ENCRYPT or MBEDTLS_BLOWFISH_DECRYPT + * \param length length of the input data + * \param iv_off offset in IV (updated after use) + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful + */ +int mbedtls_blowfish_crypt_cfb64( mbedtls_blowfish_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE], + const unsigned char *input, + unsigned char *output ); +#endif /*MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/** + * \brief Blowfish-CTR buffer encryption/decryption + * + * Warning: You have to keep the maximum use of your counter in mind! + * + * \param ctx Blowfish context + * \param length The length of the data + * \param nc_off The offset in the current stream_block (for resuming + * within current cipher stream). The offset pointer to + * should be 0 at the start of a stream. + * \param nonce_counter The 64-bit nonce and counter. + * \param stream_block The saved stream-block for resuming. Is overwritten + * by the function. + * \param input The input data stream + * \param output The output data stream + * + * \return 0 if successful + */ +int mbedtls_blowfish_crypt_ctr( mbedtls_blowfish_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[MBEDTLS_BLOWFISH_BLOCKSIZE], + unsigned char stream_block[MBEDTLS_BLOWFISH_BLOCKSIZE], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_BLOWFISH_ALT */ +#include "blowfish_alt.h" +#endif /* MBEDTLS_BLOWFISH_ALT */ + +#endif /* blowfish.h */ diff --git a/include/mbedtls/bn_mul.h b/include/mbedtls/bn_mul.h new file mode 100644 index 0000000..cac3f14 --- /dev/null +++ b/include/mbedtls/bn_mul.h @@ -0,0 +1,885 @@ +/** + * \file bn_mul.h + * + * \brief Multi-precision integer library + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * Multiply source vector [s] with b, add result + * to destination vector [d] and set carry c. + * + * Currently supports: + * + * . IA-32 (386+) . AMD64 / EM64T + * . IA-32 (SSE2) . Motorola 68000 + * . PowerPC, 32-bit . MicroBlaze + * . PowerPC, 64-bit . TriCore + * . SPARC v8 . ARM v3+ + * . Alpha . MIPS32 + * . C, longlong . C, generic + */ +#ifndef MBEDTLS_BN_MUL_H +#define MBEDTLS_BN_MUL_H + +#include "bignum.h" + +#if defined(MBEDTLS_HAVE_ASM) + +#ifndef asm +#define asm __asm +#endif + +/* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */ +#if defined(__GNUC__) && \ + ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 ) +#if defined(__i386__) + +#define MULADDC_INIT \ + asm( \ + "movl %%ebx, %0 \n\t" \ + "movl %5, %%esi \n\t" \ + "movl %6, %%edi \n\t" \ + "movl %7, %%ecx \n\t" \ + "movl %8, %%ebx \n\t" + +#define MULADDC_CORE \ + "lodsl \n\t" \ + "mull %%ebx \n\t" \ + "addl %%ecx, %%eax \n\t" \ + "adcl $0, %%edx \n\t" \ + "addl (%%edi), %%eax \n\t" \ + "adcl $0, %%edx \n\t" \ + "movl %%edx, %%ecx \n\t" \ + "stosl \n\t" + +#if defined(MBEDTLS_HAVE_SSE2) + +#define MULADDC_HUIT \ + "movd %%ecx, %%mm1 \n\t" \ + "movd %%ebx, %%mm0 \n\t" \ + "movd (%%edi), %%mm3 \n\t" \ + "paddq %%mm3, %%mm1 \n\t" \ + "movd (%%esi), %%mm2 \n\t" \ + "pmuludq %%mm0, %%mm2 \n\t" \ + "movd 4(%%esi), %%mm4 \n\t" \ + "pmuludq %%mm0, %%mm4 \n\t" \ + "movd 8(%%esi), %%mm6 \n\t" \ + "pmuludq %%mm0, %%mm6 \n\t" \ + "movd 12(%%esi), %%mm7 \n\t" \ + "pmuludq %%mm0, %%mm7 \n\t" \ + "paddq %%mm2, %%mm1 \n\t" \ + "movd 4(%%edi), %%mm3 \n\t" \ + "paddq %%mm4, %%mm3 \n\t" \ + "movd 8(%%edi), %%mm5 \n\t" \ + "paddq %%mm6, %%mm5 \n\t" \ + "movd 12(%%edi), %%mm4 \n\t" \ + "paddq %%mm4, %%mm7 \n\t" \ + "movd %%mm1, (%%edi) \n\t" \ + "movd 16(%%esi), %%mm2 \n\t" \ + "pmuludq %%mm0, %%mm2 \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "movd 20(%%esi), %%mm4 \n\t" \ + "pmuludq %%mm0, %%mm4 \n\t" \ + "paddq %%mm3, %%mm1 \n\t" \ + "movd 24(%%esi), %%mm6 \n\t" \ + "pmuludq %%mm0, %%mm6 \n\t" \ + "movd %%mm1, 4(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "movd 28(%%esi), %%mm3 \n\t" \ + "pmuludq %%mm0, %%mm3 \n\t" \ + "paddq %%mm5, %%mm1 \n\t" \ + "movd 16(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm2 \n\t" \ + "movd %%mm1, 8(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm7, %%mm1 \n\t" \ + "movd 20(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm4 \n\t" \ + "movd %%mm1, 12(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm2, %%mm1 \n\t" \ + "movd 24(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm6 \n\t" \ + "movd %%mm1, 16(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm4, %%mm1 \n\t" \ + "movd 28(%%edi), %%mm5 \n\t" \ + "paddq %%mm5, %%mm3 \n\t" \ + "movd %%mm1, 20(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm6, %%mm1 \n\t" \ + "movd %%mm1, 24(%%edi) \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "paddq %%mm3, %%mm1 \n\t" \ + "movd %%mm1, 28(%%edi) \n\t" \ + "addl $32, %%edi \n\t" \ + "addl $32, %%esi \n\t" \ + "psrlq $32, %%mm1 \n\t" \ + "movd %%mm1, %%ecx \n\t" + +#define MULADDC_STOP \ + "emms \n\t" \ + "movl %4, %%ebx \n\t" \ + "movl %%ecx, %1 \n\t" \ + "movl %%edi, %2 \n\t" \ + "movl %%esi, %3 \n\t" \ + : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \ + : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \ + : "eax", "ecx", "edx", "esi", "edi" \ + ); + +#else + +#define MULADDC_STOP \ + "movl %4, %%ebx \n\t" \ + "movl %%ecx, %1 \n\t" \ + "movl %%edi, %2 \n\t" \ + "movl %%esi, %3 \n\t" \ + : "=m" (t), "=m" (c), "=m" (d), "=m" (s) \ + : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b) \ + : "eax", "ecx", "edx", "esi", "edi" \ + ); +#endif /* SSE2 */ +#endif /* i386 */ + +#if defined(__amd64__) || defined (__x86_64__) + +#define MULADDC_INIT \ + asm( \ + "xorq %%r8, %%r8 \n\t" + +#define MULADDC_CORE \ + "movq (%%rsi), %%rax \n\t" \ + "mulq %%rbx \n\t" \ + "addq $8, %%rsi \n\t" \ + "addq %%rcx, %%rax \n\t" \ + "movq %%r8, %%rcx \n\t" \ + "adcq $0, %%rdx \n\t" \ + "nop \n\t" \ + "addq %%rax, (%%rdi) \n\t" \ + "adcq %%rdx, %%rcx \n\t" \ + "addq $8, %%rdi \n\t" + +#define MULADDC_STOP \ + : "+c" (c), "+D" (d), "+S" (s) \ + : "b" (b) \ + : "rax", "rdx", "r8" \ + ); + +#endif /* AMD64 */ + +#if defined(__mc68020__) || defined(__mcpu32__) + +#define MULADDC_INIT \ + asm( \ + "movl %3, %%a2 \n\t" \ + "movl %4, %%a3 \n\t" \ + "movl %5, %%d3 \n\t" \ + "movl %6, %%d2 \n\t" \ + "moveq #0, %%d0 \n\t" + +#define MULADDC_CORE \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "moveq #0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "addxl %%d4, %%d3 \n\t" + +#define MULADDC_STOP \ + "movl %%d3, %0 \n\t" \ + "movl %%a3, %1 \n\t" \ + "movl %%a2, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "d0", "d1", "d2", "d3", "d4", "a2", "a3" \ + ); + +#define MULADDC_HUIT \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d4:%%d1 \n\t" \ + "addxl %%d3, %%d1 \n\t" \ + "addxl %%d0, %%d4 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "movel %%a2@+, %%d1 \n\t" \ + "mulul %%d2, %%d3:%%d1 \n\t" \ + "addxl %%d4, %%d1 \n\t" \ + "addxl %%d0, %%d3 \n\t" \ + "addl %%d1, %%a3@+ \n\t" \ + "addxl %%d0, %%d3 \n\t" + +#endif /* MC68000 */ + +#if defined(__powerpc64__) || defined(__ppc64__) + +#if defined(__MACH__) && defined(__APPLE__) + +#define MULADDC_INIT \ + asm( \ + "ld r3, %3 \n\t" \ + "ld r4, %4 \n\t" \ + "ld r5, %5 \n\t" \ + "ld r6, %6 \n\t" \ + "addi r3, r3, -8 \n\t" \ + "addi r4, r4, -8 \n\t" \ + "addic r5, r5, 0 \n\t" + +#define MULADDC_CORE \ + "ldu r7, 8(r3) \n\t" \ + "mulld r8, r7, r6 \n\t" \ + "mulhdu r9, r7, r6 \n\t" \ + "adde r8, r8, r5 \n\t" \ + "ld r7, 8(r4) \n\t" \ + "addze r5, r9 \n\t" \ + "addc r8, r8, r7 \n\t" \ + "stdu r8, 8(r4) \n\t" + +#define MULADDC_STOP \ + "addze r5, r5 \n\t" \ + "addi r4, r4, 8 \n\t" \ + "addi r3, r3, 8 \n\t" \ + "std r5, %0 \n\t" \ + "std r4, %1 \n\t" \ + "std r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + + +#else /* __MACH__ && __APPLE__ */ + +#define MULADDC_INIT \ + asm( \ + "ld %%r3, %3 \n\t" \ + "ld %%r4, %4 \n\t" \ + "ld %%r5, %5 \n\t" \ + "ld %%r6, %6 \n\t" \ + "addi %%r3, %%r3, -8 \n\t" \ + "addi %%r4, %%r4, -8 \n\t" \ + "addic %%r5, %%r5, 0 \n\t" + +#define MULADDC_CORE \ + "ldu %%r7, 8(%%r3) \n\t" \ + "mulld %%r8, %%r7, %%r6 \n\t" \ + "mulhdu %%r9, %%r7, %%r6 \n\t" \ + "adde %%r8, %%r8, %%r5 \n\t" \ + "ld %%r7, 8(%%r4) \n\t" \ + "addze %%r5, %%r9 \n\t" \ + "addc %%r8, %%r8, %%r7 \n\t" \ + "stdu %%r8, 8(%%r4) \n\t" + +#define MULADDC_STOP \ + "addze %%r5, %%r5 \n\t" \ + "addi %%r4, %%r4, 8 \n\t" \ + "addi %%r3, %%r3, 8 \n\t" \ + "std %%r5, %0 \n\t" \ + "std %%r4, %1 \n\t" \ + "std %%r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + +#endif /* __MACH__ && __APPLE__ */ + +#elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32 */ + +#if defined(__MACH__) && defined(__APPLE__) + +#define MULADDC_INIT \ + asm( \ + "lwz r3, %3 \n\t" \ + "lwz r4, %4 \n\t" \ + "lwz r5, %5 \n\t" \ + "lwz r6, %6 \n\t" \ + "addi r3, r3, -4 \n\t" \ + "addi r4, r4, -4 \n\t" \ + "addic r5, r5, 0 \n\t" + +#define MULADDC_CORE \ + "lwzu r7, 4(r3) \n\t" \ + "mullw r8, r7, r6 \n\t" \ + "mulhwu r9, r7, r6 \n\t" \ + "adde r8, r8, r5 \n\t" \ + "lwz r7, 4(r4) \n\t" \ + "addze r5, r9 \n\t" \ + "addc r8, r8, r7 \n\t" \ + "stwu r8, 4(r4) \n\t" + +#define MULADDC_STOP \ + "addze r5, r5 \n\t" \ + "addi r4, r4, 4 \n\t" \ + "addi r3, r3, 4 \n\t" \ + "stw r5, %0 \n\t" \ + "stw r4, %1 \n\t" \ + "stw r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + +#else /* __MACH__ && __APPLE__ */ + +#define MULADDC_INIT \ + asm( \ + "lwz %%r3, %3 \n\t" \ + "lwz %%r4, %4 \n\t" \ + "lwz %%r5, %5 \n\t" \ + "lwz %%r6, %6 \n\t" \ + "addi %%r3, %%r3, -4 \n\t" \ + "addi %%r4, %%r4, -4 \n\t" \ + "addic %%r5, %%r5, 0 \n\t" + +#define MULADDC_CORE \ + "lwzu %%r7, 4(%%r3) \n\t" \ + "mullw %%r8, %%r7, %%r6 \n\t" \ + "mulhwu %%r9, %%r7, %%r6 \n\t" \ + "adde %%r8, %%r8, %%r5 \n\t" \ + "lwz %%r7, 4(%%r4) \n\t" \ + "addze %%r5, %%r9 \n\t" \ + "addc %%r8, %%r8, %%r7 \n\t" \ + "stwu %%r8, 4(%%r4) \n\t" + +#define MULADDC_STOP \ + "addze %%r5, %%r5 \n\t" \ + "addi %%r4, %%r4, 4 \n\t" \ + "addi %%r3, %%r3, 4 \n\t" \ + "stw %%r5, %0 \n\t" \ + "stw %%r4, %1 \n\t" \ + "stw %%r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4", "r5", "r6", "r7", "r8", "r9" \ + ); + +#endif /* __MACH__ && __APPLE__ */ + +#endif /* PPC32 */ + +/* + * The Sparc(64) assembly is reported to be broken. + * Disable it for now, until we're able to fix it. + */ +#if 0 && defined(__sparc__) +#if defined(__sparc64__) + +#define MULADDC_INIT \ + asm( \ + "ldx %3, %%o0 \n\t" \ + "ldx %4, %%o1 \n\t" \ + "ld %5, %%o2 \n\t" \ + "ld %6, %%o3 \n\t" + +#define MULADDC_CORE \ + "ld [%%o0], %%o4 \n\t" \ + "inc 4, %%o0 \n\t" \ + "ld [%%o1], %%o5 \n\t" \ + "umul %%o3, %%o4, %%o4 \n\t" \ + "addcc %%o4, %%o2, %%o4 \n\t" \ + "rd %%y, %%g1 \n\t" \ + "addx %%g1, 0, %%g1 \n\t" \ + "addcc %%o4, %%o5, %%o4 \n\t" \ + "st %%o4, [%%o1] \n\t" \ + "addx %%g1, 0, %%o2 \n\t" \ + "inc 4, %%o1 \n\t" + + #define MULADDC_STOP \ + "st %%o2, %0 \n\t" \ + "stx %%o1, %1 \n\t" \ + "stx %%o0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "g1", "o0", "o1", "o2", "o3", "o4", \ + "o5" \ + ); + +#else /* __sparc64__ */ + +#define MULADDC_INIT \ + asm( \ + "ld %3, %%o0 \n\t" \ + "ld %4, %%o1 \n\t" \ + "ld %5, %%o2 \n\t" \ + "ld %6, %%o3 \n\t" + +#define MULADDC_CORE \ + "ld [%%o0], %%o4 \n\t" \ + "inc 4, %%o0 \n\t" \ + "ld [%%o1], %%o5 \n\t" \ + "umul %%o3, %%o4, %%o4 \n\t" \ + "addcc %%o4, %%o2, %%o4 \n\t" \ + "rd %%y, %%g1 \n\t" \ + "addx %%g1, 0, %%g1 \n\t" \ + "addcc %%o4, %%o5, %%o4 \n\t" \ + "st %%o4, [%%o1] \n\t" \ + "addx %%g1, 0, %%o2 \n\t" \ + "inc 4, %%o1 \n\t" + +#define MULADDC_STOP \ + "st %%o2, %0 \n\t" \ + "st %%o1, %1 \n\t" \ + "st %%o0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "g1", "o0", "o1", "o2", "o3", "o4", \ + "o5" \ + ); + +#endif /* __sparc64__ */ +#endif /* __sparc__ */ + +#if defined(__microblaze__) || defined(microblaze) + +#define MULADDC_INIT \ + asm( \ + "lwi r3, %3 \n\t" \ + "lwi r4, %4 \n\t" \ + "lwi r5, %5 \n\t" \ + "lwi r6, %6 \n\t" \ + "andi r7, r6, 0xffff \n\t" \ + "bsrli r6, r6, 16 \n\t" + +#define MULADDC_CORE \ + "lhui r8, r3, 0 \n\t" \ + "addi r3, r3, 2 \n\t" \ + "lhui r9, r3, 0 \n\t" \ + "addi r3, r3, 2 \n\t" \ + "mul r10, r9, r6 \n\t" \ + "mul r11, r8, r7 \n\t" \ + "mul r12, r9, r7 \n\t" \ + "mul r13, r8, r6 \n\t" \ + "bsrli r8, r10, 16 \n\t" \ + "bsrli r9, r11, 16 \n\t" \ + "add r13, r13, r8 \n\t" \ + "add r13, r13, r9 \n\t" \ + "bslli r10, r10, 16 \n\t" \ + "bslli r11, r11, 16 \n\t" \ + "add r12, r12, r10 \n\t" \ + "addc r13, r13, r0 \n\t" \ + "add r12, r12, r11 \n\t" \ + "addc r13, r13, r0 \n\t" \ + "lwi r10, r4, 0 \n\t" \ + "add r12, r12, r10 \n\t" \ + "addc r13, r13, r0 \n\t" \ + "add r12, r12, r5 \n\t" \ + "addc r5, r13, r0 \n\t" \ + "swi r12, r4, 0 \n\t" \ + "addi r4, r4, 4 \n\t" + +#define MULADDC_STOP \ + "swi r5, %0 \n\t" \ + "swi r4, %1 \n\t" \ + "swi r3, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r3", "r4" "r5", "r6", "r7", "r8", \ + "r9", "r10", "r11", "r12", "r13" \ + ); + +#endif /* MicroBlaze */ + +#if defined(__tricore__) + +#define MULADDC_INIT \ + asm( \ + "ld.a %%a2, %3 \n\t" \ + "ld.a %%a3, %4 \n\t" \ + "ld.w %%d4, %5 \n\t" \ + "ld.w %%d1, %6 \n\t" \ + "xor %%d5, %%d5 \n\t" + +#define MULADDC_CORE \ + "ld.w %%d0, [%%a2+] \n\t" \ + "madd.u %%e2, %%e4, %%d0, %%d1 \n\t" \ + "ld.w %%d0, [%%a3] \n\t" \ + "addx %%d2, %%d2, %%d0 \n\t" \ + "addc %%d3, %%d3, 0 \n\t" \ + "mov %%d4, %%d3 \n\t" \ + "st.w [%%a3+], %%d2 \n\t" + +#define MULADDC_STOP \ + "st.w %0, %%d4 \n\t" \ + "st.a %1, %%a3 \n\t" \ + "st.a %2, %%a2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "d0", "d1", "e2", "d4", "a2", "a3" \ + ); + +#endif /* TriCore */ + +/* + * gcc -O0 by default uses r7 for the frame pointer, so it complains about our + * use of r7 below, unless -fomit-frame-pointer is passed. Unfortunately, + * passing that option is not easy when building with yotta. + * + * On the other hand, -fomit-frame-pointer is implied by any -Ox options with + * x !=0, which we can detect using __OPTIMIZE__ (which is also defined by + * clang and armcc5 under the same conditions). + * + * So, only use the optimized assembly below for optimized build, which avoids + * the build error and is pretty reasonable anyway. + */ +#if defined(__GNUC__) && !defined(__OPTIMIZE__) +#define MULADDC_CANNOT_USE_R7 +#endif + +#if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7) + +#if defined(__thumb__) && !defined(__thumb2__) + +#define MULADDC_INIT \ + asm( \ + "ldr r0, %3 \n\t" \ + "ldr r1, %4 \n\t" \ + "ldr r2, %5 \n\t" \ + "ldr r3, %6 \n\t" \ + "lsr r7, r3, #16 \n\t" \ + "mov r9, r7 \n\t" \ + "lsl r7, r3, #16 \n\t" \ + "lsr r7, r7, #16 \n\t" \ + "mov r8, r7 \n\t" + +#define MULADDC_CORE \ + "ldmia r0!, {r6} \n\t" \ + "lsr r7, r6, #16 \n\t" \ + "lsl r6, r6, #16 \n\t" \ + "lsr r6, r6, #16 \n\t" \ + "mov r4, r8 \n\t" \ + "mul r4, r6 \n\t" \ + "mov r3, r9 \n\t" \ + "mul r6, r3 \n\t" \ + "mov r5, r9 \n\t" \ + "mul r5, r7 \n\t" \ + "mov r3, r8 \n\t" \ + "mul r7, r3 \n\t" \ + "lsr r3, r6, #16 \n\t" \ + "add r5, r5, r3 \n\t" \ + "lsr r3, r7, #16 \n\t" \ + "add r5, r5, r3 \n\t" \ + "add r4, r4, r2 \n\t" \ + "mov r2, #0 \n\t" \ + "adc r5, r2 \n\t" \ + "lsl r3, r6, #16 \n\t" \ + "add r4, r4, r3 \n\t" \ + "adc r5, r2 \n\t" \ + "lsl r3, r7, #16 \n\t" \ + "add r4, r4, r3 \n\t" \ + "adc r5, r2 \n\t" \ + "ldr r3, [r1] \n\t" \ + "add r4, r4, r3 \n\t" \ + "adc r2, r5 \n\t" \ + "stmia r1!, {r4} \n\t" + +#define MULADDC_STOP \ + "str r2, %0 \n\t" \ + "str r1, %1 \n\t" \ + "str r0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r0", "r1", "r2", "r3", "r4", "r5", \ + "r6", "r7", "r8", "r9", "cc" \ + ); + +#else + +#define MULADDC_INIT \ + asm( \ + "ldr r0, %3 \n\t" \ + "ldr r1, %4 \n\t" \ + "ldr r2, %5 \n\t" \ + "ldr r3, %6 \n\t" + +#define MULADDC_CORE \ + "ldr r4, [r0], #4 \n\t" \ + "mov r5, #0 \n\t" \ + "ldr r6, [r1] \n\t" \ + "umlal r2, r5, r3, r4 \n\t" \ + "adds r7, r6, r2 \n\t" \ + "adc r2, r5, #0 \n\t" \ + "str r7, [r1], #4 \n\t" + +#define MULADDC_STOP \ + "str r2, %0 \n\t" \ + "str r1, %1 \n\t" \ + "str r0, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "r0", "r1", "r2", "r3", "r4", "r5", \ + "r6", "r7", "cc" \ + ); + +#endif /* Thumb */ + +#endif /* ARMv3 */ + +#if defined(__alpha__) + +#define MULADDC_INIT \ + asm( \ + "ldq $1, %3 \n\t" \ + "ldq $2, %4 \n\t" \ + "ldq $3, %5 \n\t" \ + "ldq $4, %6 \n\t" + +#define MULADDC_CORE \ + "ldq $6, 0($1) \n\t" \ + "addq $1, 8, $1 \n\t" \ + "mulq $6, $4, $7 \n\t" \ + "umulh $6, $4, $6 \n\t" \ + "addq $7, $3, $7 \n\t" \ + "cmpult $7, $3, $3 \n\t" \ + "ldq $5, 0($2) \n\t" \ + "addq $7, $5, $7 \n\t" \ + "cmpult $7, $5, $5 \n\t" \ + "stq $7, 0($2) \n\t" \ + "addq $2, 8, $2 \n\t" \ + "addq $6, $3, $3 \n\t" \ + "addq $5, $3, $3 \n\t" + +#define MULADDC_STOP \ + "stq $3, %0 \n\t" \ + "stq $2, %1 \n\t" \ + "stq $1, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "$1", "$2", "$3", "$4", "$5", "$6", "$7" \ + ); +#endif /* Alpha */ + +#if defined(__mips__) && !defined(__mips64) + +#define MULADDC_INIT \ + asm( \ + "lw $10, %3 \n\t" \ + "lw $11, %4 \n\t" \ + "lw $12, %5 \n\t" \ + "lw $13, %6 \n\t" + +#define MULADDC_CORE \ + "lw $14, 0($10) \n\t" \ + "multu $13, $14 \n\t" \ + "addi $10, $10, 4 \n\t" \ + "mflo $14 \n\t" \ + "mfhi $9 \n\t" \ + "addu $14, $12, $14 \n\t" \ + "lw $15, 0($11) \n\t" \ + "sltu $12, $14, $12 \n\t" \ + "addu $15, $14, $15 \n\t" \ + "sltu $14, $15, $14 \n\t" \ + "addu $12, $12, $9 \n\t" \ + "sw $15, 0($11) \n\t" \ + "addu $12, $12, $14 \n\t" \ + "addi $11, $11, 4 \n\t" + +#define MULADDC_STOP \ + "sw $12, %0 \n\t" \ + "sw $11, %1 \n\t" \ + "sw $10, %2 \n\t" \ + : "=m" (c), "=m" (d), "=m" (s) \ + : "m" (s), "m" (d), "m" (c), "m" (b) \ + : "$9", "$10", "$11", "$12", "$13", "$14", "$15" \ + ); + +#endif /* MIPS */ +#endif /* GNUC */ + +#if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) + +#define MULADDC_INIT \ + __asm mov esi, s \ + __asm mov edi, d \ + __asm mov ecx, c \ + __asm mov ebx, b + +#define MULADDC_CORE \ + __asm lodsd \ + __asm mul ebx \ + __asm add eax, ecx \ + __asm adc edx, 0 \ + __asm add eax, [edi] \ + __asm adc edx, 0 \ + __asm mov ecx, edx \ + __asm stosd + +#if defined(MBEDTLS_HAVE_SSE2) + +#define EMIT __asm _emit + +#define MULADDC_HUIT \ + EMIT 0x0F EMIT 0x6E EMIT 0xC9 \ + EMIT 0x0F EMIT 0x6E EMIT 0xC3 \ + EMIT 0x0F EMIT 0x6E EMIT 0x1F \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ + EMIT 0x0F EMIT 0x6E EMIT 0x16 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \ + EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x04 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \ + EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x08 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \ + EMIT 0x0F EMIT 0x6E EMIT 0x7E EMIT 0x0C \ + EMIT 0x0F EMIT 0xF4 EMIT 0xF8 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCA \ + EMIT 0x0F EMIT 0x6E EMIT 0x5F EMIT 0x04 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xDC \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x08 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xEE \ + EMIT 0x0F EMIT 0x6E EMIT 0x67 EMIT 0x0C \ + EMIT 0x0F EMIT 0xD4 EMIT 0xFC \ + EMIT 0x0F EMIT 0x7E EMIT 0x0F \ + EMIT 0x0F EMIT 0x6E EMIT 0x56 EMIT 0x10 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xD0 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0x6E EMIT 0x66 EMIT 0x14 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xE0 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ + EMIT 0x0F EMIT 0x6E EMIT 0x76 EMIT 0x18 \ + EMIT 0x0F EMIT 0xF4 EMIT 0xF0 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x04 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0x6E EMIT 0x5E EMIT 0x1C \ + EMIT 0x0F EMIT 0xF4 EMIT 0xD8 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCD \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x10 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xD5 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x08 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCF \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x14 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xE5 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x0C \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCA \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x18 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xF5 \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x10 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCC \ + EMIT 0x0F EMIT 0x6E EMIT 0x6F EMIT 0x1C \ + EMIT 0x0F EMIT 0xD4 EMIT 0xDD \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x14 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCE \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x18 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0xD4 EMIT 0xCB \ + EMIT 0x0F EMIT 0x7E EMIT 0x4F EMIT 0x1C \ + EMIT 0x83 EMIT 0xC7 EMIT 0x20 \ + EMIT 0x83 EMIT 0xC6 EMIT 0x20 \ + EMIT 0x0F EMIT 0x73 EMIT 0xD1 EMIT 0x20 \ + EMIT 0x0F EMIT 0x7E EMIT 0xC9 + +#define MULADDC_STOP \ + EMIT 0x0F EMIT 0x77 \ + __asm mov c, ecx \ + __asm mov d, edi \ + __asm mov s, esi \ + +#else + +#define MULADDC_STOP \ + __asm mov c, ecx \ + __asm mov d, edi \ + __asm mov s, esi \ + +#endif /* SSE2 */ +#endif /* MSVC */ + +#endif /* MBEDTLS_HAVE_ASM */ + +#if !defined(MULADDC_CORE) +#if defined(MBEDTLS_HAVE_UDBL) + +#define MULADDC_INIT \ +{ \ + mbedtls_t_udbl r; \ + mbedtls_mpi_uint r0, r1; + +#define MULADDC_CORE \ + r = *(s++) * (mbedtls_t_udbl) b; \ + r0 = (mbedtls_mpi_uint) r; \ + r1 = (mbedtls_mpi_uint)( r >> biL ); \ + r0 += c; r1 += (r0 < c); \ + r0 += *d; r1 += (r0 < *d); \ + c = r1; *(d++) = r0; + +#define MULADDC_STOP \ +} + +#else +#define MULADDC_INIT \ +{ \ + mbedtls_mpi_uint s0, s1, b0, b1; \ + mbedtls_mpi_uint r0, r1, rx, ry; \ + b0 = ( b << biH ) >> biH; \ + b1 = ( b >> biH ); + +#define MULADDC_CORE \ + s0 = ( *s << biH ) >> biH; \ + s1 = ( *s >> biH ); s++; \ + rx = s0 * b1; r0 = s0 * b0; \ + ry = s1 * b0; r1 = s1 * b1; \ + r1 += ( rx >> biH ); \ + r1 += ( ry >> biH ); \ + rx <<= biH; ry <<= biH; \ + r0 += rx; r1 += (r0 < rx); \ + r0 += ry; r1 += (r0 < ry); \ + r0 += c; r1 += (r0 < c); \ + r0 += *d; r1 += (r0 < *d); \ + c = r1; *(d++) = r0; + +#define MULADDC_STOP \ +} + +#endif /* C (generic) */ +#endif /* C (longlong) */ + +#endif /* bn_mul.h */ diff --git a/include/mbedtls/camellia.h b/include/mbedtls/camellia.h new file mode 100644 index 0000000..0424d62 --- /dev/null +++ b/include/mbedtls/camellia.h @@ -0,0 +1,235 @@ +/** + * \file camellia.h + * + * \brief Camellia block cipher + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_CAMELLIA_H +#define MBEDTLS_CAMELLIA_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#define MBEDTLS_CAMELLIA_ENCRYPT 1 +#define MBEDTLS_CAMELLIA_DECRYPT 0 + +#define MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH -0x0024 /**< Invalid key length. */ +#define MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026 /**< Invalid data input length. */ + +#if !defined(MBEDTLS_CAMELLIA_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief CAMELLIA context structure + */ +typedef struct +{ + int nr; /*!< number of rounds */ + uint32_t rk[68]; /*!< CAMELLIA round keys */ +} +mbedtls_camellia_context; + +/** + * \brief Initialize CAMELLIA context + * + * \param ctx CAMELLIA context to be initialized + */ +void mbedtls_camellia_init( mbedtls_camellia_context *ctx ); + +/** + * \brief Clear CAMELLIA context + * + * \param ctx CAMELLIA context to be cleared + */ +void mbedtls_camellia_free( mbedtls_camellia_context *ctx ); + +/** + * \brief CAMELLIA key schedule (encryption) + * + * \param ctx CAMELLIA context to be initialized + * \param key encryption key + * \param keybits must be 128, 192 or 256 + * + * \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH + */ +int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx, const unsigned char *key, + unsigned int keybits ); + +/** + * \brief CAMELLIA key schedule (decryption) + * + * \param ctx CAMELLIA context to be initialized + * \param key decryption key + * \param keybits must be 128, 192 or 256 + * + * \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH + */ +int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx, const unsigned char *key, + unsigned int keybits ); + +/** + * \brief CAMELLIA-ECB block encryption/decryption + * + * \param ctx CAMELLIA context + * \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT + * \param input 16-byte input block + * \param output 16-byte output block + * + * \return 0 if successful + */ +int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief CAMELLIA-CBC buffer encryption/decryption + * Length should be a multiple of the block + * size (16 bytes) + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx CAMELLIA context + * \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful, or + * MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH + */ +int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/** + * \brief CAMELLIA-CFB128 buffer encryption/decryption + * + * Note: Due to the nature of CFB you should use the same key schedule for + * both encryption and decryption. So a context initialized with + * mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and CAMELLIE_DECRYPT. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx CAMELLIA context + * \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT + * \param length length of the input data + * \param iv_off offset in IV (updated after use) + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful, or + * MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH + */ +int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/** + * \brief CAMELLIA-CTR buffer encryption/decryption + * + * Warning: You have to keep the maximum use of your counter in mind! + * + * Note: Due to the nature of CTR you should use the same key schedule for + * both encryption and decryption. So a context initialized with + * mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and MBEDTLS_CAMELLIA_DECRYPT. + * + * \param ctx CAMELLIA context + * \param length The length of the data + * \param nc_off The offset in the current stream_block (for resuming + * within current cipher stream). The offset pointer to + * should be 0 at the start of a stream. + * \param nonce_counter The 128-bit nonce and counter. + * \param stream_block The saved stream-block for resuming. Is overwritten + * by the function. + * \param input The input data stream + * \param output The output data stream + * + * \return 0 if successful + */ +int mbedtls_camellia_crypt_ctr( mbedtls_camellia_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[16], + unsigned char stream_block[16], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_CAMELLIA_ALT */ +#include "camellia_alt.h" +#endif /* MBEDTLS_CAMELLIA_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_camellia_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* camellia.h */ diff --git a/include/mbedtls/ccm.h b/include/mbedtls/ccm.h new file mode 100644 index 0000000..ef75839 --- /dev/null +++ b/include/mbedtls/ccm.h @@ -0,0 +1,141 @@ +/** + * \file ccm.h + * + * \brief Counter with CBC-MAC (CCM) for 128-bit block ciphers + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_CCM_H +#define MBEDTLS_CCM_H + +#include "cipher.h" + +#define MBEDTLS_ERR_CCM_BAD_INPUT -0x000D /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_CCM_AUTH_FAILED -0x000F /**< Authenticated decryption failed. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief CCM context structure + */ +typedef struct { + mbedtls_cipher_context_t cipher_ctx; /*!< cipher context used */ +} +mbedtls_ccm_context; + +/** + * \brief Initialize CCM context (just makes references valid) + * Makes the context ready for mbedtls_ccm_setkey() or + * mbedtls_ccm_free(). + * + * \param ctx CCM context to initialize + */ +void mbedtls_ccm_init( mbedtls_ccm_context *ctx ); + +/** + * \brief CCM initialization (encryption and decryption) + * + * \param ctx CCM context to be initialized + * \param cipher cipher to use (a 128-bit block cipher) + * \param key encryption key + * \param keybits key size in bits (must be acceptable by the cipher) + * + * \return 0 if successful, or a cipher specific error code + */ +int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx, + mbedtls_cipher_id_t cipher, + const unsigned char *key, + unsigned int keybits ); + +/** + * \brief Free a CCM context and underlying cipher sub-context + * + * \param ctx CCM context to free + */ +void mbedtls_ccm_free( mbedtls_ccm_context *ctx ); + +/** + * \brief CCM buffer encryption + * + * \param ctx CCM context + * \param length length of the input data in bytes + * \param iv nonce (initialization vector) + * \param iv_len length of IV in bytes + * must be 2, 3, 4, 5, 6, 7 or 8 + * \param add additional data + * \param add_len length of additional data in bytes + * must be less than 2^16 - 2^8 + * \param input buffer holding the input data + * \param output buffer for holding the output data + * must be at least 'length' bytes wide + * \param tag buffer for holding the tag + * \param tag_len length of the tag to generate in bytes + * must be 4, 6, 8, 10, 14 or 16 + * + * \note The tag is written to a separate buffer. To get the tag + * concatenated with the output as in the CCM spec, use + * tag = output + length and make sure the output buffer is + * at least length + tag_len wide. + * + * \return 0 if successful + */ +int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *add, size_t add_len, + const unsigned char *input, unsigned char *output, + unsigned char *tag, size_t tag_len ); + +/** + * \brief CCM buffer authenticated decryption + * + * \param ctx CCM context + * \param length length of the input data + * \param iv initialization vector + * \param iv_len length of IV + * \param add additional data + * \param add_len length of additional data + * \param input buffer holding the input data + * \param output buffer for holding the output data + * \param tag buffer holding the tag + * \param tag_len length of the tag + * + * \return 0 if successful and authenticated, + * MBEDTLS_ERR_CCM_AUTH_FAILED if tag does not match + */ +int mbedtls_ccm_auth_decrypt( mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *add, size_t add_len, + const unsigned char *input, unsigned char *output, + const unsigned char *tag, size_t tag_len ); + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_ccm_self_test( int verbose ); +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CCM_H */ diff --git a/include/mbedtls/certs.h b/include/mbedtls/certs.h new file mode 100644 index 0000000..ca49086 --- /dev/null +++ b/include/mbedtls/certs.h @@ -0,0 +1,99 @@ +/** + * \file certs.h + * + * \brief Sample certificates and DHM parameters for testing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_CERTS_H +#define MBEDTLS_CERTS_H + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) +/* Concatenation of all CA certificates in PEM format if available */ +extern const char mbedtls_test_cas_pem[]; +extern const size_t mbedtls_test_cas_pem_len; +#endif + +/* List of all CA certificates, terminated by NULL */ +extern const char * mbedtls_test_cas[]; +extern const size_t mbedtls_test_cas_len[]; + +/* + * Convenience for users who just want a certificate: + * RSA by default, or ECDSA if RSA is not available + */ +extern const char * mbedtls_test_ca_crt; +extern const size_t mbedtls_test_ca_crt_len; +extern const char * mbedtls_test_ca_key; +extern const size_t mbedtls_test_ca_key_len; +extern const char * mbedtls_test_ca_pwd; +extern const size_t mbedtls_test_ca_pwd_len; +extern const char * mbedtls_test_srv_crt; +extern const size_t mbedtls_test_srv_crt_len; +extern const char * mbedtls_test_srv_key; +extern const size_t mbedtls_test_srv_key_len; +extern const char * mbedtls_test_cli_crt; +extern const size_t mbedtls_test_cli_crt_len; +extern const char * mbedtls_test_cli_key; +extern const size_t mbedtls_test_cli_key_len; + +#if defined(MBEDTLS_ECDSA_C) +extern const char mbedtls_test_ca_crt_ec[]; +extern const size_t mbedtls_test_ca_crt_ec_len; +extern const char mbedtls_test_ca_key_ec[]; +extern const size_t mbedtls_test_ca_key_ec_len; +extern const char mbedtls_test_ca_pwd_ec[]; +extern const size_t mbedtls_test_ca_pwd_ec_len; +extern const char mbedtls_test_srv_crt_ec[]; +extern const size_t mbedtls_test_srv_crt_ec_len; +extern const char mbedtls_test_srv_key_ec[]; +extern const size_t mbedtls_test_srv_key_ec_len; +extern const char mbedtls_test_cli_crt_ec[]; +extern const size_t mbedtls_test_cli_crt_ec_len; +extern const char mbedtls_test_cli_key_ec[]; +extern const size_t mbedtls_test_cli_key_ec_len; +#endif + +#if defined(MBEDTLS_RSA_C) +extern const char mbedtls_test_ca_crt_rsa[]; +extern const size_t mbedtls_test_ca_crt_rsa_len; +extern const char mbedtls_test_ca_key_rsa[]; +extern const size_t mbedtls_test_ca_key_rsa_len; +extern const char mbedtls_test_ca_pwd_rsa[]; +extern const size_t mbedtls_test_ca_pwd_rsa_len; +extern const char mbedtls_test_srv_crt_rsa[]; +extern const size_t mbedtls_test_srv_crt_rsa_len; +extern const char mbedtls_test_srv_key_rsa[]; +extern const size_t mbedtls_test_srv_key_rsa_len; +extern const char mbedtls_test_cli_crt_rsa[]; +extern const size_t mbedtls_test_cli_crt_rsa_len; +extern const char mbedtls_test_cli_key_rsa[]; +extern const size_t mbedtls_test_cli_key_rsa_len; +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* certs.h */ diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h new file mode 100644 index 0000000..fe86c1e --- /dev/null +++ b/include/mbedtls/check_config.h @@ -0,0 +1,628 @@ +/** + * \file check_config.h + * + * \brief Consistency checks for configuration options + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * It is recommended to include this file from your config.h + * in order to catch dependency issues early. + */ + +#ifndef MBEDTLS_CHECK_CONFIG_H +#define MBEDTLS_CHECK_CONFIG_H + +/* + * We assume CHAR_BIT is 8 in many places. In practice, this is true on our + * target platforms, so not an issue, but let's just be extra sure. + */ +#include +#if CHAR_BIT != 8 +#error "mbed TLS requires a platform with 8-bit chars" +#endif + +#if defined(_WIN32) +#if !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_C is required on Windows" +#endif + +/* Fix the config here. Not convenient to put an #ifdef _WIN32 in config.h as + * it would confuse config.pl. */ +#if !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && \ + !defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) +#define MBEDTLS_PLATFORM_SNPRINTF_ALT +#endif +#endif /* _WIN32 */ + +#if defined(TARGET_LIKE_MBED) && \ + ( defined(MBEDTLS_NET_C) || defined(MBEDTLS_TIMING_C) ) +#error "The NET and TIMING modules are not available for mbed OS - please use the network and timing functions provided by mbed OS" +#endif + +#if defined(MBEDTLS_DEPRECATED_WARNING) && \ + !defined(__GNUC__) && !defined(__clang__) +#error "MBEDTLS_DEPRECATED_WARNING only works with GCC and Clang" +#endif + +#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_HAVE_TIME) +#error "MBEDTLS_HAVE_TIME_DATE without MBEDTLS_HAVE_TIME does not make sense" +#endif + +#if defined(MBEDTLS_AESNI_C) && !defined(MBEDTLS_HAVE_ASM) +#error "MBEDTLS_AESNI_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_CTR_DRBG_C) && !defined(MBEDTLS_AES_C) +#error "MBEDTLS_CTR_DRBG_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_DHM_C) && !defined(MBEDTLS_BIGNUM_C) +#error "MBEDTLS_DHM_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_CMAC_C) && \ + !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_DES_C) +#error "MBEDTLS_CMAC_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECDH_C) && !defined(MBEDTLS_ECP_C) +#error "MBEDTLS_ECDH_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECDSA_C) && \ + ( !defined(MBEDTLS_ECP_C) || \ + !defined(MBEDTLS_ASN1_PARSE_C) || \ + !defined(MBEDTLS_ASN1_WRITE_C) ) +#error "MBEDTLS_ECDSA_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECJPAKE_C) && \ + ( !defined(MBEDTLS_ECP_C) || !defined(MBEDTLS_MD_C) ) +#error "MBEDTLS_ECJPAKE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) && !defined(MBEDTLS_HMAC_DRBG_C) +#error "MBEDTLS_ECDSA_DETERMINISTIC defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || ( \ + !defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) ) ) +#error "MBEDTLS_ECP_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ENTROPY_C) && (!defined(MBEDTLS_SHA512_C) && \ + !defined(MBEDTLS_SHA256_C)) +#error "MBEDTLS_ENTROPY_C defined, but not all prerequisites" +#endif +#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_SHA512_C) && \ + defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 64) +#error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high" +#endif +#if defined(MBEDTLS_ENTROPY_C) && \ + ( !defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_ENTROPY_FORCE_SHA256) ) \ + && defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 32) +#error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high" +#endif +#if defined(MBEDTLS_ENTROPY_C) && \ + defined(MBEDTLS_ENTROPY_FORCE_SHA256) && !defined(MBEDTLS_SHA256_C) +#error "MBEDTLS_ENTROPY_FORCE_SHA256 defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_TEST_NULL_ENTROPY) && \ + ( !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) ) +#error "MBEDTLS_TEST_NULL_ENTROPY defined, but not all prerequisites" +#endif +#if defined(MBEDTLS_TEST_NULL_ENTROPY) && \ + ( defined(MBEDTLS_ENTROPY_NV_SEED) || defined(MBEDTLS_ENTROPY_HARDWARE_ALT) || \ + defined(MBEDTLS_HAVEGE_C) ) +#error "MBEDTLS_TEST_NULL_ENTROPY defined, but entropy sources too" +#endif + +#if defined(MBEDTLS_GCM_C) && ( \ + !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) ) +#error "MBEDTLS_GCM_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_HAVEGE_C) && !defined(MBEDTLS_TIMING_C) +#error "MBEDTLS_HAVEGE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_HMAC_DRBG_C) && !defined(MBEDTLS_MD_C) +#error "MBEDTLS_HMAC_DRBG_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) && \ + ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \ + ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) && !defined(MBEDTLS_DHM_C) +#error "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) && \ + !defined(MBEDTLS_ECDH_C) +#error "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \ + ( !defined(MBEDTLS_DHM_C) || !defined(MBEDTLS_RSA_C) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \ + ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) && \ + ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) && \ + ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \ + !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \ + ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \ + !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) && \ + ( !defined(MBEDTLS_ECJPAKE_C) || !defined(MBEDTLS_SHA256_C) || \ + !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) ) +#error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && \ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) ) +#error "MBEDTLS_MEMORY_BUFFER_ALLOC_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PADLOCK_C) && !defined(MBEDTLS_HAVE_ASM) +#error "MBEDTLS_PADLOCK_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) && !defined(MBEDTLS_BASE64_C) +#error "MBEDTLS_PEM_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PEM_WRITE_C) && !defined(MBEDTLS_BASE64_C) +#error "MBEDTLS_PEM_WRITE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PK_C) && \ + ( !defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_C) ) +#error "MBEDTLS_PK_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_PK_C) +#error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PK_WRITE_C) && !defined(MBEDTLS_PK_C) +#error "MBEDTLS_PK_WRITE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PKCS11_C) && !defined(MBEDTLS_PK_C) +#error "MBEDTLS_PKCS11_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_EXIT_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_EXIT) ||\ + defined(MBEDTLS_PLATFORM_EXIT_ALT) ) +#error "MBEDTLS_PLATFORM_EXIT_MACRO and MBEDTLS_PLATFORM_STD_EXIT/MBEDTLS_PLATFORM_EXIT_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_ALT) &&\ + ( !defined(MBEDTLS_PLATFORM_C) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_TIME_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_TIME_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\ + defined(MBEDTLS_PLATFORM_TIME_ALT) ) +#error "MBEDTLS_PLATFORM_TIME_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\ + defined(MBEDTLS_PLATFORM_TIME_ALT) ) +#error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_FPRINTF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_FPRINTF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_FPRINTF) ||\ + defined(MBEDTLS_PLATFORM_FPRINTF_ALT) ) +#error "MBEDTLS_PLATFORM_FPRINTF_MACRO and MBEDTLS_PLATFORM_STD_FPRINTF/MBEDTLS_PLATFORM_FPRINTF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) ) +#error "MBEDTLS_PLATFORM_FREE_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\ + defined(MBEDTLS_PLATFORM_STD_FREE) +#error "MBEDTLS_PLATFORM_FREE_MACRO and MBEDTLS_PLATFORM_STD_FREE cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) && !defined(MBEDTLS_PLATFORM_CALLOC_MACRO) +#error "MBEDTLS_PLATFORM_CALLOC_MACRO must be defined if MBEDTLS_PLATFORM_FREE_MACRO is" +#endif + +#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) ) +#error "MBEDTLS_PLATFORM_CALLOC_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\ + defined(MBEDTLS_PLATFORM_STD_CALLOC) +#error "MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_STD_CALLOC cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) && !defined(MBEDTLS_PLATFORM_FREE_MACRO) +#error "MBEDTLS_PLATFORM_FREE_MACRO must be defined if MBEDTLS_PLATFORM_CALLOC_MACRO is" +#endif + +#if defined(MBEDTLS_PLATFORM_MEMORY) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_MEMORY defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_PRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_PRINTF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_PRINTF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_PRINTF) ||\ + defined(MBEDTLS_PLATFORM_PRINTF_ALT) ) +#error "MBEDTLS_PLATFORM_PRINTF_MACRO and MBEDTLS_PLATFORM_STD_PRINTF/MBEDTLS_PLATFORM_PRINTF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_SNPRINTF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_SNPRINTF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_SNPRINTF) ||\ + defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) ) +#error "MBEDTLS_PLATFORM_SNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_SNPRINTF/MBEDTLS_PLATFORM_SNPRINTF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) &&\ + !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) +#error "MBEDTLS_PLATFORM_STD_MEM_HDR defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY) +#error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY) +#error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_FREE) && !defined(MBEDTLS_PLATFORM_MEMORY) +#error "MBEDTLS_PLATFORM_STD_FREE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_EXIT) &&\ + !defined(MBEDTLS_PLATFORM_EXIT_ALT) +#error "MBEDTLS_PLATFORM_STD_EXIT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_TIME) &&\ + ( !defined(MBEDTLS_PLATFORM_TIME_ALT) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_STD_TIME defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_FPRINTF) &&\ + !defined(MBEDTLS_PLATFORM_FPRINTF_ALT) +#error "MBEDTLS_PLATFORM_STD_FPRINTF defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_PRINTF) &&\ + !defined(MBEDTLS_PLATFORM_PRINTF_ALT) +#error "MBEDTLS_PLATFORM_STD_PRINTF defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_SNPRINTF) &&\ + !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) +#error "MBEDTLS_PLATFORM_STD_SNPRINTF defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ENTROPY_NV_SEED) &&\ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_ENTROPY_C) ) +#error "MBEDTLS_ENTROPY_NV_SEED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) &&\ + !defined(MBEDTLS_ENTROPY_NV_SEED) +#error "MBEDTLS_PLATFORM_NV_SEED_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) &&\ + !defined(MBEDTLS_PLATFORM_NV_SEED_ALT) +#error "MBEDTLS_PLATFORM_STD_NV_SEED_READ defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) &&\ + !defined(MBEDTLS_PLATFORM_NV_SEED_ALT) +#error "MBEDTLS_PLATFORM_STD_NV_SEED_WRITE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) ||\ + defined(MBEDTLS_PLATFORM_NV_SEED_ALT) ) +#error "MBEDTLS_PLATFORM_NV_SEED_READ_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_READ cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) ||\ + defined(MBEDTLS_PLATFORM_NV_SEED_ALT) ) +#error "MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_WRITE cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) || \ + !defined(MBEDTLS_OID_C) ) +#error "MBEDTLS_RSA_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_PKCS1_V21) && \ + !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_RSA_C defined, but none of the PKCS1 versions enabled" +#endif + +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) && \ + ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_PKCS1_V21) ) +#error "MBEDTLS_X509_RSASSA_PSS_SUPPORT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_PROTO_SSL3) && ( !defined(MBEDTLS_MD5_C) || \ + !defined(MBEDTLS_SHA1_C) ) +#error "MBEDTLS_SSL_PROTO_SSL3 defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1) && ( !defined(MBEDTLS_MD5_C) || \ + !defined(MBEDTLS_SHA1_C) ) +#error "MBEDTLS_SSL_PROTO_TLS1 defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) && ( !defined(MBEDTLS_MD5_C) || \ + !defined(MBEDTLS_SHA1_C) ) +#error "MBEDTLS_SSL_PROTO_TLS1_1 defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && ( !defined(MBEDTLS_SHA1_C) && \ + !defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) ) +#error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_PROTO_DTLS) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#error "MBEDTLS_SSL_PROTO_DTLS defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_CLI_C) && !defined(MBEDTLS_SSL_TLS_C) +#error "MBEDTLS_SSL_CLI_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) && ( !defined(MBEDTLS_CIPHER_C) || \ + !defined(MBEDTLS_MD_C) ) +#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_SRV_C) && !defined(MBEDTLS_SSL_TLS_C) +#error "MBEDTLS_SSL_SRV_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) && (!defined(MBEDTLS_SSL_PROTO_SSL3) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1) && !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2)) +#error "MBEDTLS_SSL_TLS_C defined, but no protocols are active" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) && !defined(MBEDTLS_SSL_PROTO_TLS1)) +#error "Illegal protocol selection" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_TLS1) && \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) && !defined(MBEDTLS_SSL_PROTO_TLS1_1)) +#error "Illegal protocol selection" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) && (!defined(MBEDTLS_SSL_PROTO_TLS1) || \ + !defined(MBEDTLS_SSL_PROTO_TLS1_1))) +#error "Illegal protocol selection" +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && !defined(MBEDTLS_SSL_PROTO_DTLS) +#error "MBEDTLS_SSL_DTLS_HELLO_VERIFY defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && \ + !defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) +#error "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) && \ + ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) ) +#error "MBEDTLS_SSL_DTLS_ANTI_REPLAY defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) && \ + ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) ) +#error "MBEDTLS_SSL_DTLS_BADMAC_LIMIT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#error "MBEDTLS_SSL_ENCRYPT_THEN_MAC defined, but not all prerequsites" +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#error "MBEDTLS_SSL_EXTENDED_MASTER_SECRET defined, but not all prerequsites" +#endif + +#if defined(MBEDTLS_SSL_TICKET_C) && !defined(MBEDTLS_CIPHER_C) +#error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) && \ + !defined(MBEDTLS_SSL_PROTO_SSL3) && !defined(MBEDTLS_SSL_PROTO_TLS1) +#error "MBEDTLS_SSL_CBC_RECORD_SPLITTING defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && \ + !defined(MBEDTLS_X509_CRT_PARSE_C) +#error "MBEDTLS_SSL_SERVER_NAME_INDICATION defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_THREADING_PTHREAD) +#if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL) +#error "MBEDTLS_THREADING_PTHREAD defined, but not all prerequisites" +#endif +#define MBEDTLS_THREADING_IMPL +#endif + +#if defined(MBEDTLS_THREADING_ALT) +#if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL) +#error "MBEDTLS_THREADING_ALT defined, but not all prerequisites" +#endif +#define MBEDTLS_THREADING_IMPL +#endif + +#if defined(MBEDTLS_THREADING_C) && !defined(MBEDTLS_THREADING_IMPL) +#error "MBEDTLS_THREADING_C defined, single threading implementation required" +#endif +#undef MBEDTLS_THREADING_IMPL + +#if defined(MBEDTLS_VERSION_FEATURES) && !defined(MBEDTLS_VERSION_C) +#error "MBEDTLS_VERSION_FEATURES defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_USE_C) && ( !defined(MBEDTLS_BIGNUM_C) || \ + !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_PARSE_C) || \ + !defined(MBEDTLS_PK_PARSE_C) ) +#error "MBEDTLS_X509_USE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CREATE_C) && ( !defined(MBEDTLS_BIGNUM_C) || \ + !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_WRITE_C) || \ + !defined(MBEDTLS_PK_WRITE_C) ) +#error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) ) +#error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CRL_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) ) +#error "MBEDTLS_X509_CRL_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CSR_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) ) +#error "MBEDTLS_X509_CSR_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CRT_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) ) +#error "MBEDTLS_X509_CRT_WRITE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CSR_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) ) +#error "MBEDTLS_X509_CSR_WRITE_C defined, but not all prerequisites" +#endif + +/* + * Avoid warning from -pedantic. This is a convenient place for this + * workaround since this is included by every single file before the + * #if defined(MBEDTLS_xxx_C) that results in emtpy translation units. + */ +typedef int mbedtls_iso_c_forbids_empty_translation_units; + +#endif /* MBEDTLS_CHECK_CONFIG_H */ diff --git a/include/mbedtls/cipher.h b/include/mbedtls/cipher.h new file mode 100644 index 0000000..b12e388 --- /dev/null +++ b/include/mbedtls/cipher.h @@ -0,0 +1,709 @@ +/** + * \file cipher.h + * + * \brief Generic cipher wrapper. + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#ifndef MBEDTLS_CIPHER_H +#define MBEDTLS_CIPHER_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) +#define MBEDTLS_CIPHER_MODE_AEAD +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#define MBEDTLS_CIPHER_MODE_WITH_PADDING +#endif + +#if defined(MBEDTLS_ARC4_C) +#define MBEDTLS_CIPHER_MODE_STREAM +#endif + +#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +#define MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE -0x6080 /**< The selected feature is not available. */ +#define MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA -0x6100 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_CIPHER_ALLOC_FAILED -0x6180 /**< Failed to allocate memory. */ +#define MBEDTLS_ERR_CIPHER_INVALID_PADDING -0x6200 /**< Input data contains invalid padding and is rejected. */ +#define MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED -0x6280 /**< Decryption of block requires a full block. */ +#define MBEDTLS_ERR_CIPHER_AUTH_FAILED -0x6300 /**< Authentication failed (for AEAD modes). */ +#define MBEDTLS_ERR_CIPHER_INVALID_CONTEXT -0x6380 /**< The context is invalid, eg because it was free()ed. */ + +#define MBEDTLS_CIPHER_VARIABLE_IV_LEN 0x01 /**< Cipher accepts IVs of variable length */ +#define MBEDTLS_CIPHER_VARIABLE_KEY_LEN 0x02 /**< Cipher accepts keys of variable length */ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + MBEDTLS_CIPHER_ID_NONE = 0, + MBEDTLS_CIPHER_ID_NULL, + MBEDTLS_CIPHER_ID_AES, + MBEDTLS_CIPHER_ID_DES, + MBEDTLS_CIPHER_ID_3DES, + MBEDTLS_CIPHER_ID_CAMELLIA, + MBEDTLS_CIPHER_ID_BLOWFISH, + MBEDTLS_CIPHER_ID_ARC4, +} mbedtls_cipher_id_t; + +typedef enum { + MBEDTLS_CIPHER_NONE = 0, + MBEDTLS_CIPHER_NULL, + MBEDTLS_CIPHER_AES_128_ECB, + MBEDTLS_CIPHER_AES_192_ECB, + MBEDTLS_CIPHER_AES_256_ECB, + MBEDTLS_CIPHER_AES_128_CBC, + MBEDTLS_CIPHER_AES_192_CBC, + MBEDTLS_CIPHER_AES_256_CBC, + MBEDTLS_CIPHER_AES_128_CFB128, + MBEDTLS_CIPHER_AES_192_CFB128, + MBEDTLS_CIPHER_AES_256_CFB128, + MBEDTLS_CIPHER_AES_128_CTR, + MBEDTLS_CIPHER_AES_192_CTR, + MBEDTLS_CIPHER_AES_256_CTR, + MBEDTLS_CIPHER_AES_128_GCM, + MBEDTLS_CIPHER_AES_192_GCM, + MBEDTLS_CIPHER_AES_256_GCM, + MBEDTLS_CIPHER_CAMELLIA_128_ECB, + MBEDTLS_CIPHER_CAMELLIA_192_ECB, + MBEDTLS_CIPHER_CAMELLIA_256_ECB, + MBEDTLS_CIPHER_CAMELLIA_128_CBC, + MBEDTLS_CIPHER_CAMELLIA_192_CBC, + MBEDTLS_CIPHER_CAMELLIA_256_CBC, + MBEDTLS_CIPHER_CAMELLIA_128_CFB128, + MBEDTLS_CIPHER_CAMELLIA_192_CFB128, + MBEDTLS_CIPHER_CAMELLIA_256_CFB128, + MBEDTLS_CIPHER_CAMELLIA_128_CTR, + MBEDTLS_CIPHER_CAMELLIA_192_CTR, + MBEDTLS_CIPHER_CAMELLIA_256_CTR, + MBEDTLS_CIPHER_CAMELLIA_128_GCM, + MBEDTLS_CIPHER_CAMELLIA_192_GCM, + MBEDTLS_CIPHER_CAMELLIA_256_GCM, + MBEDTLS_CIPHER_DES_ECB, + MBEDTLS_CIPHER_DES_CBC, + MBEDTLS_CIPHER_DES_EDE_ECB, + MBEDTLS_CIPHER_DES_EDE_CBC, + MBEDTLS_CIPHER_DES_EDE3_ECB, + MBEDTLS_CIPHER_DES_EDE3_CBC, + MBEDTLS_CIPHER_BLOWFISH_ECB, + MBEDTLS_CIPHER_BLOWFISH_CBC, + MBEDTLS_CIPHER_BLOWFISH_CFB64, + MBEDTLS_CIPHER_BLOWFISH_CTR, + MBEDTLS_CIPHER_ARC4_128, + MBEDTLS_CIPHER_AES_128_CCM, + MBEDTLS_CIPHER_AES_192_CCM, + MBEDTLS_CIPHER_AES_256_CCM, + MBEDTLS_CIPHER_CAMELLIA_128_CCM, + MBEDTLS_CIPHER_CAMELLIA_192_CCM, + MBEDTLS_CIPHER_CAMELLIA_256_CCM, +} mbedtls_cipher_type_t; + +typedef enum { + MBEDTLS_MODE_NONE = 0, + MBEDTLS_MODE_ECB, + MBEDTLS_MODE_CBC, + MBEDTLS_MODE_CFB, + MBEDTLS_MODE_OFB, /* Unused! */ + MBEDTLS_MODE_CTR, + MBEDTLS_MODE_GCM, + MBEDTLS_MODE_STREAM, + MBEDTLS_MODE_CCM, +} mbedtls_cipher_mode_t; + +typedef enum { + MBEDTLS_PADDING_PKCS7 = 0, /**< PKCS7 padding (default) */ + MBEDTLS_PADDING_ONE_AND_ZEROS, /**< ISO/IEC 7816-4 padding */ + MBEDTLS_PADDING_ZEROS_AND_LEN, /**< ANSI X.923 padding */ + MBEDTLS_PADDING_ZEROS, /**< zero padding (not reversible!) */ + MBEDTLS_PADDING_NONE, /**< never pad (full blocks only) */ +} mbedtls_cipher_padding_t; + +typedef enum { + MBEDTLS_OPERATION_NONE = -1, + MBEDTLS_DECRYPT = 0, + MBEDTLS_ENCRYPT, +} mbedtls_operation_t; + +enum { + /** Undefined key length */ + MBEDTLS_KEY_LENGTH_NONE = 0, + /** Key length, in bits (including parity), for DES keys */ + MBEDTLS_KEY_LENGTH_DES = 64, + /** Key length, in bits (including parity), for DES in two key EDE */ + MBEDTLS_KEY_LENGTH_DES_EDE = 128, + /** Key length, in bits (including parity), for DES in three-key EDE */ + MBEDTLS_KEY_LENGTH_DES_EDE3 = 192, +}; + +/** Maximum length of any IV, in bytes */ +#define MBEDTLS_MAX_IV_LENGTH 16 +/** Maximum block size of any cipher, in bytes */ +#define MBEDTLS_MAX_BLOCK_LENGTH 16 + +/** + * Base cipher information (opaque struct). + */ +typedef struct mbedtls_cipher_base_t mbedtls_cipher_base_t; + +/** + * CMAC context (opaque struct). + */ +typedef struct mbedtls_cmac_context_t mbedtls_cmac_context_t; + +/** + * Cipher information. Allows cipher functions to be called in a generic way. + */ +typedef struct { + /** Full cipher identifier (e.g. MBEDTLS_CIPHER_AES_256_CBC) */ + mbedtls_cipher_type_t type; + + /** Cipher mode (e.g. MBEDTLS_MODE_CBC) */ + mbedtls_cipher_mode_t mode; + + /** Cipher key length, in bits (default length for variable sized ciphers) + * (Includes parity bits for ciphers like DES) */ + unsigned int key_bitlen; + + /** Name of the cipher */ + const char * name; + + /** IV/NONCE size, in bytes. + * For cipher that accept many sizes: recommended size */ + unsigned int iv_size; + + /** Flags for variable IV size, variable key size, etc. */ + int flags; + + /** block size, in bytes */ + unsigned int block_size; + + /** Base cipher information and functions */ + const mbedtls_cipher_base_t *base; + +} mbedtls_cipher_info_t; + +/** + * Generic cipher context. + */ +typedef struct { + /** Information about the associated cipher */ + const mbedtls_cipher_info_t *cipher_info; + + /** Key length to use */ + int key_bitlen; + + /** Operation that the context's key has been initialised for */ + mbedtls_operation_t operation; + +#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) + /** Padding functions to use, if relevant for cipher mode */ + void (*add_padding)( unsigned char *output, size_t olen, size_t data_len ); + int (*get_padding)( unsigned char *input, size_t ilen, size_t *data_len ); +#endif + + /** Buffer for data that hasn't been encrypted yet */ + unsigned char unprocessed_data[MBEDTLS_MAX_BLOCK_LENGTH]; + + /** Number of bytes that still need processing */ + size_t unprocessed_len; + + /** Current IV or NONCE_COUNTER for CTR-mode */ + unsigned char iv[MBEDTLS_MAX_IV_LENGTH]; + + /** IV size in bytes (for ciphers with variable-length IVs) */ + size_t iv_size; + + /** Cipher-specific context */ + void *cipher_ctx; + +#if defined(MBEDTLS_CMAC_C) + /** CMAC Specific context */ + mbedtls_cmac_context_t *cmac_ctx; +#endif +} mbedtls_cipher_context_t; + +/** + * \brief Returns the list of ciphers supported by the generic cipher module. + * + * \return a statically allocated array of ciphers, the last entry + * is 0. + */ +const int *mbedtls_cipher_list( void ); + +/** + * \brief Returns the cipher information structure associated + * with the given cipher name. + * + * \param cipher_name Name of the cipher to search for. + * + * \return the cipher information structure associated with the + * given cipher_name, or NULL if not found. + */ +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string( const char *cipher_name ); + +/** + * \brief Returns the cipher information structure associated + * with the given cipher type. + * + * \param cipher_type Type of the cipher to search for. + * + * \return the cipher information structure associated with the + * given cipher_type, or NULL if not found. + */ +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type( const mbedtls_cipher_type_t cipher_type ); + +/** + * \brief Returns the cipher information structure associated + * with the given cipher id, key size and mode. + * + * \param cipher_id Id of the cipher to search for + * (e.g. MBEDTLS_CIPHER_ID_AES) + * \param key_bitlen Length of the key in bits + * \param mode Cipher mode (e.g. MBEDTLS_MODE_CBC) + * + * \return the cipher information structure associated with the + * given cipher_type, or NULL if not found. + */ +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values( const mbedtls_cipher_id_t cipher_id, + int key_bitlen, + const mbedtls_cipher_mode_t mode ); + +/** + * \brief Initialize a cipher_context (as NONE) + */ +void mbedtls_cipher_init( mbedtls_cipher_context_t *ctx ); + +/** + * \brief Free and clear the cipher-specific context of ctx. + * Freeing ctx itself remains the responsibility of the + * caller. + */ +void mbedtls_cipher_free( mbedtls_cipher_context_t *ctx ); + +/** + * \brief Initialises and fills the cipher context structure with + * the appropriate values. + * + * \note Currently also clears structure. In future versions you + * will be required to call mbedtls_cipher_init() on the structure + * first. + * + * \param ctx context to initialise. May not be NULL. + * \param cipher_info cipher to use. + * + * \return 0 on success, + * MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on parameter failure, + * MBEDTLS_ERR_CIPHER_ALLOC_FAILED if allocation of the + * cipher-specific context failed. + */ +int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx, const mbedtls_cipher_info_t *cipher_info ); + +/** + * \brief Returns the block size of the given cipher. + * + * \param ctx cipher's context. Must have been initialised. + * + * \return size of the cipher's blocks, or 0 if ctx has not been + * initialised. + */ +static inline unsigned int mbedtls_cipher_get_block_size( const mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return 0; + + return ctx->cipher_info->block_size; +} + +/** + * \brief Returns the mode of operation for the cipher. + * (e.g. MBEDTLS_MODE_CBC) + * + * \param ctx cipher's context. Must have been initialised. + * + * \return mode of operation, or MBEDTLS_MODE_NONE if ctx + * has not been initialised. + */ +static inline mbedtls_cipher_mode_t mbedtls_cipher_get_cipher_mode( const mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return MBEDTLS_MODE_NONE; + + return ctx->cipher_info->mode; +} + +/** + * \brief Returns the size of the cipher's IV/NONCE in bytes. + * + * \param ctx cipher's context. Must have been initialised. + * + * \return If IV has not been set yet: (recommended) IV size + * (0 for ciphers not using IV/NONCE). + * If IV has already been set: actual size. + */ +static inline int mbedtls_cipher_get_iv_size( const mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return 0; + + if( ctx->iv_size != 0 ) + return (int) ctx->iv_size; + + return (int) ctx->cipher_info->iv_size; +} + +/** + * \brief Returns the type of the given cipher. + * + * \param ctx cipher's context. Must have been initialised. + * + * \return type of the cipher, or MBEDTLS_CIPHER_NONE if ctx has + * not been initialised. + */ +static inline mbedtls_cipher_type_t mbedtls_cipher_get_type( const mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return MBEDTLS_CIPHER_NONE; + + return ctx->cipher_info->type; +} + +/** + * \brief Returns the name of the given cipher, as a string. + * + * \param ctx cipher's context. Must have been initialised. + * + * \return name of the cipher, or NULL if ctx was not initialised. + */ +static inline const char *mbedtls_cipher_get_name( const mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return 0; + + return ctx->cipher_info->name; +} + +/** + * \brief Returns the key length of the cipher. + * + * \param ctx cipher's context. Must have been initialised. + * + * \return cipher's key length, in bits, or + * MBEDTLS_KEY_LENGTH_NONE if ctx has not been + * initialised. + */ +static inline int mbedtls_cipher_get_key_bitlen( const mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return MBEDTLS_KEY_LENGTH_NONE; + + return (int) ctx->cipher_info->key_bitlen; +} + +/** + * \brief Returns the operation of the given cipher. + * + * \param ctx cipher's context. Must have been initialised. + * + * \return operation (MBEDTLS_ENCRYPT or MBEDTLS_DECRYPT), + * or MBEDTLS_OPERATION_NONE if ctx has not been + * initialised. + */ +static inline mbedtls_operation_t mbedtls_cipher_get_operation( const mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return MBEDTLS_OPERATION_NONE; + + return ctx->operation; +} + +/** + * \brief Set the key to use with the given context. + * + * \param ctx generic cipher context. May not be NULL. Must have been + * initialised using cipher_context_from_type or + * cipher_context_from_string. + * \param key The key to use. + * \param key_bitlen key length to use, in bits. + * \param operation Operation that the key will be used for, either + * MBEDTLS_ENCRYPT or MBEDTLS_DECRYPT. + * + * \returns 0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if + * parameter verification fails or a cipher specific + * error code. + */ +int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx, const unsigned char *key, + int key_bitlen, const mbedtls_operation_t operation ); + +#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) +/** + * \brief Set padding mode, for cipher modes that use padding. + * (Default: PKCS7 padding.) + * + * \param ctx generic cipher context + * \param mode padding mode + * + * \returns 0 on success, MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE + * if selected padding mode is not supported, or + * MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if the cipher mode + * does not support padding. + */ +int mbedtls_cipher_set_padding_mode( mbedtls_cipher_context_t *ctx, mbedtls_cipher_padding_t mode ); +#endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ + +/** + * \brief Set the initialization vector (IV) or nonce + * + * \param ctx generic cipher context + * \param iv IV to use (or NONCE_COUNTER for CTR-mode ciphers) + * \param iv_len IV length for ciphers with variable-size IV; + * discarded by ciphers with fixed-size IV. + * + * \returns 0 on success, or MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA + * + * \note Some ciphers don't use IVs nor NONCE. For these + * ciphers, this function has no effect. + */ +int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len ); + +/** + * \brief Finish preparation of the given context + * + * \param ctx generic cipher context + * + * \returns 0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA + * if parameter verification fails. + */ +int mbedtls_cipher_reset( mbedtls_cipher_context_t *ctx ); + +#if defined(MBEDTLS_GCM_C) +/** + * \brief Add additional data (for AEAD ciphers). + * Currently only supported with GCM. + * Must be called exactly once, after mbedtls_cipher_reset(). + * + * \param ctx generic cipher context + * \param ad Additional data to use. + * \param ad_len Length of ad. + * + * \return 0 on success, or a specific error code. + */ +int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx, + const unsigned char *ad, size_t ad_len ); +#endif /* MBEDTLS_GCM_C */ + +/** + * \brief Generic cipher update function. Encrypts/decrypts + * using the given cipher context. Writes as many block + * size'd blocks of data as possible to output. Any data + * that cannot be written immediately will either be added + * to the next block, or flushed when cipher_final is + * called. + * Exception: for MBEDTLS_MODE_ECB, expects single block + * in size (e.g. 16 bytes for AES) + * + * \param ctx generic cipher context + * \param input buffer holding the input data + * \param ilen length of the input data + * \param output buffer for the output data. Should be able to hold at + * least ilen + block_size. Cannot be the same buffer as + * input! + * \param olen length of the output data, will be filled with the + * actual number of bytes written. + * + * \returns 0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if + * parameter verification fails, + * MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE on an + * unsupported mode for a cipher or a cipher specific + * error code. + * + * \note If the underlying cipher is GCM, all calls to this + * function, except the last one before mbedtls_cipher_finish(), + * must have ilen a multiple of the block size. + */ +int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *input, + size_t ilen, unsigned char *output, size_t *olen ); + +/** + * \brief Generic cipher finalisation function. If data still + * needs to be flushed from an incomplete block, data + * contained within it will be padded with the size of + * the last block, and written to the output buffer. + * + * \param ctx Generic cipher context + * \param output buffer to write data to. Needs block_size available. + * \param olen length of the data written to the output buffer. + * + * \returns 0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if + * parameter verification fails, + * MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED if decryption + * expected a full block but was not provided one, + * MBEDTLS_ERR_CIPHER_INVALID_PADDING on invalid padding + * while decrypting or a cipher specific error code. + */ +int mbedtls_cipher_finish( mbedtls_cipher_context_t *ctx, + unsigned char *output, size_t *olen ); + +#if defined(MBEDTLS_GCM_C) +/** + * \brief Write tag for AEAD ciphers. + * Currently only supported with GCM. + * Must be called after mbedtls_cipher_finish(). + * + * \param ctx Generic cipher context + * \param tag buffer to write the tag + * \param tag_len Length of the tag to write + * + * \return 0 on success, or a specific error code. + */ +int mbedtls_cipher_write_tag( mbedtls_cipher_context_t *ctx, + unsigned char *tag, size_t tag_len ); + +/** + * \brief Check tag for AEAD ciphers. + * Currently only supported with GCM. + * Must be called after mbedtls_cipher_finish(). + * + * \param ctx Generic cipher context + * \param tag Buffer holding the tag + * \param tag_len Length of the tag to check + * + * \return 0 on success, or a specific error code. + */ +int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx, + const unsigned char *tag, size_t tag_len ); +#endif /* MBEDTLS_GCM_C */ + +/** + * \brief Generic all-in-one encryption/decryption + * (for all ciphers except AEAD constructs). + * + * \param ctx generic cipher context + * \param iv IV to use (or NONCE_COUNTER for CTR-mode ciphers) + * \param iv_len IV length for ciphers with variable-size IV; + * discarded by ciphers with fixed-size IV. + * \param input buffer holding the input data + * \param ilen length of the input data + * \param output buffer for the output data. Should be able to hold at + * least ilen + block_size. Cannot be the same buffer as + * input! + * \param olen length of the output data, will be filled with the + * actual number of bytes written. + * + * \note Some ciphers don't use IVs nor NONCE. For these + * ciphers, use iv = NULL and iv_len = 0. + * + * \returns 0 on success, or + * MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, or + * MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED if decryption + * expected a full block but was not provided one, or + * MBEDTLS_ERR_CIPHER_INVALID_PADDING on invalid padding + * while decrypting, or + * a cipher specific error code. + */ +int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen ); + +#if defined(MBEDTLS_CIPHER_MODE_AEAD) +/** + * \brief Generic autenticated encryption (AEAD ciphers). + * + * \param ctx generic cipher context + * \param iv IV to use (or NONCE_COUNTER for CTR-mode ciphers) + * \param iv_len IV length for ciphers with variable-size IV; + * discarded by ciphers with fixed-size IV. + * \param ad Additional data to authenticate. + * \param ad_len Length of ad. + * \param input buffer holding the input data + * \param ilen length of the input data + * \param output buffer for the output data. + * Should be able to hold at least ilen. + * \param olen length of the output data, will be filled with the + * actual number of bytes written. + * \param tag buffer for the authentication tag + * \param tag_len desired tag length + * + * \returns 0 on success, or + * MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, or + * a cipher specific error code. + */ +int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, + unsigned char *tag, size_t tag_len ); + +/** + * \brief Generic autenticated decryption (AEAD ciphers). + * + * \param ctx generic cipher context + * \param iv IV to use (or NONCE_COUNTER for CTR-mode ciphers) + * \param iv_len IV length for ciphers with variable-size IV; + * discarded by ciphers with fixed-size IV. + * \param ad Additional data to be authenticated. + * \param ad_len Length of ad. + * \param input buffer holding the input data + * \param ilen length of the input data + * \param output buffer for the output data. + * Should be able to hold at least ilen. + * \param olen length of the output data, will be filled with the + * actual number of bytes written. + * \param tag buffer holding the authentication tag + * \param tag_len length of the authentication tag + * + * \returns 0 on success, or + * MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, or + * MBEDTLS_ERR_CIPHER_AUTH_FAILED if data isn't authentic, + * or a cipher specific error code. + * + * \note If the data is not authentic, then the output buffer + * is zeroed out to prevent the unauthentic plaintext to + * be used by mistake, making this interface safer. + */ +int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, + const unsigned char *tag, size_t tag_len ); +#endif /* MBEDTLS_CIPHER_MODE_AEAD */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CIPHER_H */ diff --git a/include/mbedtls/cipher_internal.h b/include/mbedtls/cipher_internal.h new file mode 100644 index 0000000..6c58bcc --- /dev/null +++ b/include/mbedtls/cipher_internal.h @@ -0,0 +1,109 @@ +/** + * \file cipher_internal.h + * + * \brief Cipher wrappers. + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_CIPHER_WRAP_H +#define MBEDTLS_CIPHER_WRAP_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "cipher.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Base cipher information. The non-mode specific functions and values. + */ +struct mbedtls_cipher_base_t +{ + /** Base Cipher type (e.g. MBEDTLS_CIPHER_ID_AES) */ + mbedtls_cipher_id_t cipher; + + /** Encrypt using ECB */ + int (*ecb_func)( void *ctx, mbedtls_operation_t mode, + const unsigned char *input, unsigned char *output ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + /** Encrypt using CBC */ + int (*cbc_func)( void *ctx, mbedtls_operation_t mode, size_t length, + unsigned char *iv, const unsigned char *input, + unsigned char *output ); +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CFB) + /** Encrypt using CFB (Full length) */ + int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off, + unsigned char *iv, const unsigned char *input, + unsigned char *output ); +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CTR) + /** Encrypt using CTR */ + int (*ctr_func)( void *ctx, size_t length, size_t *nc_off, + unsigned char *nonce_counter, unsigned char *stream_block, + const unsigned char *input, unsigned char *output ); +#endif + +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + /** Encrypt using STREAM */ + int (*stream_func)( void *ctx, size_t length, + const unsigned char *input, unsigned char *output ); +#endif + + /** Set key for encryption purposes */ + int (*setkey_enc_func)( void *ctx, const unsigned char *key, + unsigned int key_bitlen ); + + /** Set key for decryption purposes */ + int (*setkey_dec_func)( void *ctx, const unsigned char *key, + unsigned int key_bitlen); + + /** Allocate a new context */ + void * (*ctx_alloc_func)( void ); + + /** Free the given context */ + void (*ctx_free_func)( void *ctx ); + +}; + +typedef struct +{ + mbedtls_cipher_type_t type; + const mbedtls_cipher_info_t *info; +} mbedtls_cipher_definition_t; + +extern const mbedtls_cipher_definition_t mbedtls_cipher_definitions[]; + +extern int mbedtls_cipher_supported[]; + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CIPHER_WRAP_H */ diff --git a/include/mbedtls/cmac.h b/include/mbedtls/cmac.h new file mode 100644 index 0000000..75e0b97 --- /dev/null +++ b/include/mbedtls/cmac.h @@ -0,0 +1,166 @@ +/** + * \file cmac.h + * + * \brief Cipher-based Message Authentication Code (CMAC) Mode for + * Authentication + * + * Copyright (C) 2015-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_CMAC_H +#define MBEDTLS_CMAC_H + +#include "mbedtls/cipher.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MBEDTLS_AES_BLOCK_SIZE 16 +#define MBEDTLS_DES3_BLOCK_SIZE 8 + +#if defined(MBEDTLS_AES_C) +#define MBEDTLS_CIPHER_BLKSIZE_MAX 16 /* longest used by CMAC is AES */ +#else +#define MBEDTLS_CIPHER_BLKSIZE_MAX 8 /* longest used by CMAC is 3DES */ +#endif + +/** + * CMAC context structure - Contains internal state information only + */ +struct mbedtls_cmac_context_t +{ + /** Internal state of the CMAC algorithm */ + unsigned char state[MBEDTLS_CIPHER_BLKSIZE_MAX]; + + /** Unprocessed data - either data that was not block aligned and is still + * pending to be processed, or the final block */ + unsigned char unprocessed_block[MBEDTLS_CIPHER_BLKSIZE_MAX]; + + /** Length of data pending to be processed */ + size_t unprocessed_len; +}; + +/** + * \brief Set the CMAC key and prepare to authenticate the input + * data. + * Should be called with an initialised cipher context. + * + * \param ctx Cipher context + * \param key CMAC key + * \param keybits length of the CMAC key in bits + * (must be acceptable by the cipher) + * + * \return 0 if successful, or a cipher specific error code + */ +int mbedtls_cipher_cmac_starts( mbedtls_cipher_context_t *ctx, + const unsigned char *key, size_t keybits ); + +/** + * \brief Generic CMAC process buffer. + * Called between mbedtls_cipher_cmac_starts() or + * mbedtls_cipher_cmac_reset() and + * mbedtls_cipher_cmac_finish(). + * May be called repeatedly. + * + * \param ctx CMAC context + * \param input buffer holding the data + * \param ilen length of the input data + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_cipher_cmac_update( mbedtls_cipher_context_t *ctx, + const unsigned char *input, size_t ilen ); + +/** + * \brief Output CMAC. + * Called after mbedtls_cipher_cmac_update(). + * Usually followed by mbedtls_cipher_cmac_reset(), then + * mbedtls_cipher_cmac_starts(), or mbedtls_cipher_free(). + * + * \param ctx CMAC context + * \param output Generic CMAC checksum result + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_cipher_cmac_finish( mbedtls_cipher_context_t *ctx, + unsigned char *output ); + +/** + * \brief Prepare to authenticate a new message with the same key. + * Called after mbedtls_cipher_cmac_finish() and before + * mbedtls_cipher_cmac_update(). + * + * \param ctx CMAC context to be reset + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_cipher_cmac_reset( mbedtls_cipher_context_t *ctx ); + +/** + * \brief Output = Generic_CMAC( hmac key, input buffer ) + * + * \param cipher_info message digest info + * \param key CMAC key + * \param keylen length of the CMAC key in bits + * \param input buffer holding the data + * \param ilen length of the input data + * \param output Generic CMAC-result + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_cipher_cmac( const mbedtls_cipher_info_t *cipher_info, + const unsigned char *key, size_t keylen, + const unsigned char *input, size_t ilen, + unsigned char *output ); + +#if defined(MBEDTLS_AES_C) +/** + * \brief AES-CMAC-128-PRF + * Implementation of (AES-CMAC-PRF-128), as defined in RFC 4615 + * + * \param key PRF key + * \param key_len PRF key length in bytes + * \param input buffer holding the input data + * \param in_len length of the input data in bytes + * \param output buffer holding the generated pseudorandom output (16 bytes) + * + * \return 0 if successful + */ +int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_len, + const unsigned char *input, size_t in_len, + unsigned char output[16] ); +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) ) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_cmac_self_test( int verbose ); +#endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CMAC_H */ diff --git a/include/mbedtls/compat-1.3.h b/include/mbedtls/compat-1.3.h new file mode 100644 index 0000000..27abbd9 --- /dev/null +++ b/include/mbedtls/compat-1.3.h @@ -0,0 +1,2634 @@ +/** + * \file compat-1.3.h + * + * \brief Compatibility definitions for using mbed TLS with client code written + * for the PolarSSL naming conventions. + * + * \deprecated Use the new names directly instead + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if ! defined(MBEDTLS_DEPRECATED_REMOVED) + +#if defined(MBEDTLS_DEPRECATED_WARNING) +#warning "Including compat-1.3.h is deprecated" +#endif + +#ifndef MBEDTLS_COMPAT13_H +#define MBEDTLS_COMPAT13_H + +/* + * config.h options + */ +#if defined MBEDTLS_AESNI_C +#define POLARSSL_AESNI_C MBEDTLS_AESNI_C +#endif +#if defined MBEDTLS_AES_ALT +#define POLARSSL_AES_ALT MBEDTLS_AES_ALT +#endif +#if defined MBEDTLS_AES_C +#define POLARSSL_AES_C MBEDTLS_AES_C +#endif +#if defined MBEDTLS_AES_ROM_TABLES +#define POLARSSL_AES_ROM_TABLES MBEDTLS_AES_ROM_TABLES +#endif +#if defined MBEDTLS_ARC4_ALT +#define POLARSSL_ARC4_ALT MBEDTLS_ARC4_ALT +#endif +#if defined MBEDTLS_ARC4_C +#define POLARSSL_ARC4_C MBEDTLS_ARC4_C +#endif +#if defined MBEDTLS_ASN1_PARSE_C +#define POLARSSL_ASN1_PARSE_C MBEDTLS_ASN1_PARSE_C +#endif +#if defined MBEDTLS_ASN1_WRITE_C +#define POLARSSL_ASN1_WRITE_C MBEDTLS_ASN1_WRITE_C +#endif +#if defined MBEDTLS_BASE64_C +#define POLARSSL_BASE64_C MBEDTLS_BASE64_C +#endif +#if defined MBEDTLS_BIGNUM_C +#define POLARSSL_BIGNUM_C MBEDTLS_BIGNUM_C +#endif +#if defined MBEDTLS_BLOWFISH_ALT +#define POLARSSL_BLOWFISH_ALT MBEDTLS_BLOWFISH_ALT +#endif +#if defined MBEDTLS_BLOWFISH_C +#define POLARSSL_BLOWFISH_C MBEDTLS_BLOWFISH_C +#endif +#if defined MBEDTLS_CAMELLIA_ALT +#define POLARSSL_CAMELLIA_ALT MBEDTLS_CAMELLIA_ALT +#endif +#if defined MBEDTLS_CAMELLIA_C +#define POLARSSL_CAMELLIA_C MBEDTLS_CAMELLIA_C +#endif +#if defined MBEDTLS_CAMELLIA_SMALL_MEMORY +#define POLARSSL_CAMELLIA_SMALL_MEMORY MBEDTLS_CAMELLIA_SMALL_MEMORY +#endif +#if defined MBEDTLS_CCM_C +#define POLARSSL_CCM_C MBEDTLS_CCM_C +#endif +#if defined MBEDTLS_CERTS_C +#define POLARSSL_CERTS_C MBEDTLS_CERTS_C +#endif +#if defined MBEDTLS_CIPHER_C +#define POLARSSL_CIPHER_C MBEDTLS_CIPHER_C +#endif +#if defined MBEDTLS_CIPHER_MODE_CBC +#define POLARSSL_CIPHER_MODE_CBC MBEDTLS_CIPHER_MODE_CBC +#endif +#if defined MBEDTLS_CIPHER_MODE_CFB +#define POLARSSL_CIPHER_MODE_CFB MBEDTLS_CIPHER_MODE_CFB +#endif +#if defined MBEDTLS_CIPHER_MODE_CTR +#define POLARSSL_CIPHER_MODE_CTR MBEDTLS_CIPHER_MODE_CTR +#endif +#if defined MBEDTLS_CIPHER_NULL_CIPHER +#define POLARSSL_CIPHER_NULL_CIPHER MBEDTLS_CIPHER_NULL_CIPHER +#endif +#if defined MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS +#define POLARSSL_CIPHER_PADDING_ONE_AND_ZEROS MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS +#endif +#if defined MBEDTLS_CIPHER_PADDING_PKCS7 +#define POLARSSL_CIPHER_PADDING_PKCS7 MBEDTLS_CIPHER_PADDING_PKCS7 +#endif +#if defined MBEDTLS_CIPHER_PADDING_ZEROS +#define POLARSSL_CIPHER_PADDING_ZEROS MBEDTLS_CIPHER_PADDING_ZEROS +#endif +#if defined MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN +#define POLARSSL_CIPHER_PADDING_ZEROS_AND_LEN MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN +#endif +#if defined MBEDTLS_CTR_DRBG_C +#define POLARSSL_CTR_DRBG_C MBEDTLS_CTR_DRBG_C +#endif +#if defined MBEDTLS_DEBUG_C +#define POLARSSL_DEBUG_C MBEDTLS_DEBUG_C +#endif +#if defined MBEDTLS_DEPRECATED_REMOVED +#define POLARSSL_DEPRECATED_REMOVED MBEDTLS_DEPRECATED_REMOVED +#endif +#if defined MBEDTLS_DEPRECATED_WARNING +#define POLARSSL_DEPRECATED_WARNING MBEDTLS_DEPRECATED_WARNING +#endif +#if defined MBEDTLS_DES_ALT +#define POLARSSL_DES_ALT MBEDTLS_DES_ALT +#endif +#if defined MBEDTLS_DES_C +#define POLARSSL_DES_C MBEDTLS_DES_C +#endif +#if defined MBEDTLS_DHM_C +#define POLARSSL_DHM_C MBEDTLS_DHM_C +#endif +#if defined MBEDTLS_ECDH_C +#define POLARSSL_ECDH_C MBEDTLS_ECDH_C +#endif +#if defined MBEDTLS_ECDSA_C +#define POLARSSL_ECDSA_C MBEDTLS_ECDSA_C +#endif +#if defined MBEDTLS_ECDSA_DETERMINISTIC +#define POLARSSL_ECDSA_DETERMINISTIC MBEDTLS_ECDSA_DETERMINISTIC +#endif +#if defined MBEDTLS_ECP_C +#define POLARSSL_ECP_C MBEDTLS_ECP_C +#endif +#if defined MBEDTLS_ECP_DP_BP256R1_ENABLED +#define POLARSSL_ECP_DP_BP256R1_ENABLED MBEDTLS_ECP_DP_BP256R1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_BP384R1_ENABLED +#define POLARSSL_ECP_DP_BP384R1_ENABLED MBEDTLS_ECP_DP_BP384R1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_BP512R1_ENABLED +#define POLARSSL_ECP_DP_BP512R1_ENABLED MBEDTLS_ECP_DP_BP512R1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_CURVE25519_ENABLED +#define POLARSSL_ECP_DP_M255_ENABLED MBEDTLS_ECP_DP_CURVE25519_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP192K1_ENABLED +#define POLARSSL_ECP_DP_SECP192K1_ENABLED MBEDTLS_ECP_DP_SECP192K1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP192R1_ENABLED +#define POLARSSL_ECP_DP_SECP192R1_ENABLED MBEDTLS_ECP_DP_SECP192R1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP224K1_ENABLED +#define POLARSSL_ECP_DP_SECP224K1_ENABLED MBEDTLS_ECP_DP_SECP224K1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP224R1_ENABLED +#define POLARSSL_ECP_DP_SECP224R1_ENABLED MBEDTLS_ECP_DP_SECP224R1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP256K1_ENABLED +#define POLARSSL_ECP_DP_SECP256K1_ENABLED MBEDTLS_ECP_DP_SECP256K1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP256R1_ENABLED +#define POLARSSL_ECP_DP_SECP256R1_ENABLED MBEDTLS_ECP_DP_SECP256R1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP384R1_ENABLED +#define POLARSSL_ECP_DP_SECP384R1_ENABLED MBEDTLS_ECP_DP_SECP384R1_ENABLED +#endif +#if defined MBEDTLS_ECP_DP_SECP521R1_ENABLED +#define POLARSSL_ECP_DP_SECP521R1_ENABLED MBEDTLS_ECP_DP_SECP521R1_ENABLED +#endif +#if defined MBEDTLS_ECP_FIXED_POINT_OPTIM +#define POLARSSL_ECP_FIXED_POINT_OPTIM MBEDTLS_ECP_FIXED_POINT_OPTIM +#endif +#if defined MBEDTLS_ECP_MAX_BITS +#define POLARSSL_ECP_MAX_BITS MBEDTLS_ECP_MAX_BITS +#endif +#if defined MBEDTLS_ECP_NIST_OPTIM +#define POLARSSL_ECP_NIST_OPTIM MBEDTLS_ECP_NIST_OPTIM +#endif +#if defined MBEDTLS_ECP_WINDOW_SIZE +#define POLARSSL_ECP_WINDOW_SIZE MBEDTLS_ECP_WINDOW_SIZE +#endif +#if defined MBEDTLS_ENABLE_WEAK_CIPHERSUITES +#define POLARSSL_ENABLE_WEAK_CIPHERSUITES MBEDTLS_ENABLE_WEAK_CIPHERSUITES +#endif +#if defined MBEDTLS_ENTROPY_C +#define POLARSSL_ENTROPY_C MBEDTLS_ENTROPY_C +#endif +#if defined MBEDTLS_ENTROPY_FORCE_SHA256 +#define POLARSSL_ENTROPY_FORCE_SHA256 MBEDTLS_ENTROPY_FORCE_SHA256 +#endif +#if defined MBEDTLS_ERROR_C +#define POLARSSL_ERROR_C MBEDTLS_ERROR_C +#endif +#if defined MBEDTLS_ERROR_STRERROR_BC +#define POLARSSL_ERROR_STRERROR_BC MBEDTLS_ERROR_STRERROR_BC +#endif +#if defined MBEDTLS_ERROR_STRERROR_DUMMY +#define POLARSSL_ERROR_STRERROR_DUMMY MBEDTLS_ERROR_STRERROR_DUMMY +#endif +#if defined MBEDTLS_FS_IO +#define POLARSSL_FS_IO MBEDTLS_FS_IO +#endif +#if defined MBEDTLS_GCM_C +#define POLARSSL_GCM_C MBEDTLS_GCM_C +#endif +#if defined MBEDTLS_GENPRIME +#define POLARSSL_GENPRIME MBEDTLS_GENPRIME +#endif +#if defined MBEDTLS_HAVEGE_C +#define POLARSSL_HAVEGE_C MBEDTLS_HAVEGE_C +#endif +#if defined MBEDTLS_HAVE_ASM +#define POLARSSL_HAVE_ASM MBEDTLS_HAVE_ASM +#endif +#if defined MBEDTLS_HAVE_SSE2 +#define POLARSSL_HAVE_SSE2 MBEDTLS_HAVE_SSE2 +#endif +#if defined MBEDTLS_HAVE_TIME +#define POLARSSL_HAVE_TIME MBEDTLS_HAVE_TIME +#endif +#if defined MBEDTLS_HMAC_DRBG_C +#define POLARSSL_HMAC_DRBG_C MBEDTLS_HMAC_DRBG_C +#endif +#if defined MBEDTLS_HMAC_DRBG_MAX_INPUT +#define POLARSSL_HMAC_DRBG_MAX_INPUT MBEDTLS_HMAC_DRBG_MAX_INPUT +#endif +#if defined MBEDTLS_HMAC_DRBG_MAX_REQUEST +#define POLARSSL_HMAC_DRBG_MAX_REQUEST MBEDTLS_HMAC_DRBG_MAX_REQUEST +#endif +#if defined MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT +#define POLARSSL_HMAC_DRBG_MAX_SEED_INPUT MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT +#endif +#if defined MBEDTLS_HMAC_DRBG_RESEED_INTERVAL +#define POLARSSL_HMAC_DRBG_RESEED_INTERVAL MBEDTLS_HMAC_DRBG_RESEED_INTERVAL +#endif +#if defined MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED +#define POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED +#define POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED +#define POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED +#define POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED +#define POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED +#define POLARSSL_KEY_EXCHANGE_ECDH_ECDSA_ENABLED MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED +#define POLARSSL_KEY_EXCHANGE_ECDH_RSA_ENABLED MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_PSK_ENABLED +#define POLARSSL_KEY_EXCHANGE_PSK_ENABLED MBEDTLS_KEY_EXCHANGE_PSK_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_RSA_ENABLED +#define POLARSSL_KEY_EXCHANGE_RSA_ENABLED MBEDTLS_KEY_EXCHANGE_RSA_ENABLED +#endif +#if defined MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED +#define POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED +#endif +#if defined MBEDTLS_MD2_ALT +#define POLARSSL_MD2_ALT MBEDTLS_MD2_ALT +#endif +#if defined MBEDTLS_MD2_C +#define POLARSSL_MD2_C MBEDTLS_MD2_C +#endif +#if defined MBEDTLS_MD2_PROCESS_ALT +#define POLARSSL_MD2_PROCESS_ALT MBEDTLS_MD2_PROCESS_ALT +#endif +#if defined MBEDTLS_MD4_ALT +#define POLARSSL_MD4_ALT MBEDTLS_MD4_ALT +#endif +#if defined MBEDTLS_MD4_C +#define POLARSSL_MD4_C MBEDTLS_MD4_C +#endif +#if defined MBEDTLS_MD4_PROCESS_ALT +#define POLARSSL_MD4_PROCESS_ALT MBEDTLS_MD4_PROCESS_ALT +#endif +#if defined MBEDTLS_MD5_ALT +#define POLARSSL_MD5_ALT MBEDTLS_MD5_ALT +#endif +#if defined MBEDTLS_MD5_C +#define POLARSSL_MD5_C MBEDTLS_MD5_C +#endif +#if defined MBEDTLS_MD5_PROCESS_ALT +#define POLARSSL_MD5_PROCESS_ALT MBEDTLS_MD5_PROCESS_ALT +#endif +#if defined MBEDTLS_MD_C +#define POLARSSL_MD_C MBEDTLS_MD_C +#endif +#if defined MBEDTLS_MEMORY_ALIGN_MULTIPLE +#define POLARSSL_MEMORY_ALIGN_MULTIPLE MBEDTLS_MEMORY_ALIGN_MULTIPLE +#endif +#if defined MBEDTLS_MEMORY_BACKTRACE +#define POLARSSL_MEMORY_BACKTRACE MBEDTLS_MEMORY_BACKTRACE +#endif +#if defined MBEDTLS_MEMORY_BUFFER_ALLOC_C +#define POLARSSL_MEMORY_BUFFER_ALLOC_C MBEDTLS_MEMORY_BUFFER_ALLOC_C +#endif +#if defined MBEDTLS_MEMORY_C +#define POLARSSL_MEMORY_C MBEDTLS_MEMORY_C +#endif +#if defined MBEDTLS_MEMORY_DEBUG +#define POLARSSL_MEMORY_DEBUG MBEDTLS_MEMORY_DEBUG +#endif +#if defined MBEDTLS_MPI_MAX_SIZE +#define POLARSSL_MPI_MAX_SIZE MBEDTLS_MPI_MAX_SIZE +#endif +#if defined MBEDTLS_MPI_WINDOW_SIZE +#define POLARSSL_MPI_WINDOW_SIZE MBEDTLS_MPI_WINDOW_SIZE +#endif +#if defined MBEDTLS_NET_C +#define POLARSSL_NET_C MBEDTLS_NET_C +#endif +#if defined MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES +#define POLARSSL_NO_DEFAULT_ENTROPY_SOURCES MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES +#endif +#if defined MBEDTLS_NO_PLATFORM_ENTROPY +#define POLARSSL_NO_PLATFORM_ENTROPY MBEDTLS_NO_PLATFORM_ENTROPY +#endif +#if defined MBEDTLS_OID_C +#define POLARSSL_OID_C MBEDTLS_OID_C +#endif +#if defined MBEDTLS_PADLOCK_C +#define POLARSSL_PADLOCK_C MBEDTLS_PADLOCK_C +#endif +#if defined MBEDTLS_PBKDF2_C +#define POLARSSL_PBKDF2_C MBEDTLS_PBKDF2_C +#endif +#if defined MBEDTLS_PEM_PARSE_C +#define POLARSSL_PEM_PARSE_C MBEDTLS_PEM_PARSE_C +#endif +#if defined MBEDTLS_PEM_WRITE_C +#define POLARSSL_PEM_WRITE_C MBEDTLS_PEM_WRITE_C +#endif +#if defined MBEDTLS_PKCS11_C +#define POLARSSL_PKCS11_C MBEDTLS_PKCS11_C +#endif +#if defined MBEDTLS_PKCS12_C +#define POLARSSL_PKCS12_C MBEDTLS_PKCS12_C +#endif +#if defined MBEDTLS_PKCS1_V15 +#define POLARSSL_PKCS1_V15 MBEDTLS_PKCS1_V15 +#endif +#if defined MBEDTLS_PKCS1_V21 +#define POLARSSL_PKCS1_V21 MBEDTLS_PKCS1_V21 +#endif +#if defined MBEDTLS_PKCS5_C +#define POLARSSL_PKCS5_C MBEDTLS_PKCS5_C +#endif +#if defined MBEDTLS_PK_C +#define POLARSSL_PK_C MBEDTLS_PK_C +#endif +#if defined MBEDTLS_PK_PARSE_C +#define POLARSSL_PK_PARSE_C MBEDTLS_PK_PARSE_C +#endif +#if defined MBEDTLS_PK_PARSE_EC_EXTENDED +#define POLARSSL_PK_PARSE_EC_EXTENDED MBEDTLS_PK_PARSE_EC_EXTENDED +#endif +#if defined MBEDTLS_PK_RSA_ALT_SUPPORT +#define POLARSSL_PK_RSA_ALT_SUPPORT MBEDTLS_PK_RSA_ALT_SUPPORT +#endif +#if defined MBEDTLS_PK_WRITE_C +#define POLARSSL_PK_WRITE_C MBEDTLS_PK_WRITE_C +#endif +#if defined MBEDTLS_PLATFORM_C +#define POLARSSL_PLATFORM_C MBEDTLS_PLATFORM_C +#endif +#if defined MBEDTLS_PLATFORM_EXIT_ALT +#define POLARSSL_PLATFORM_EXIT_ALT MBEDTLS_PLATFORM_EXIT_ALT +#endif +#if defined MBEDTLS_PLATFORM_EXIT_MACRO +#define POLARSSL_PLATFORM_EXIT_MACRO MBEDTLS_PLATFORM_EXIT_MACRO +#endif +#if defined MBEDTLS_PLATFORM_FPRINTF_ALT +#define POLARSSL_PLATFORM_FPRINTF_ALT MBEDTLS_PLATFORM_FPRINTF_ALT +#endif +#if defined MBEDTLS_PLATFORM_FPRINTF_MACRO +#define POLARSSL_PLATFORM_FPRINTF_MACRO MBEDTLS_PLATFORM_FPRINTF_MACRO +#endif +#if defined MBEDTLS_PLATFORM_FREE_MACRO +#define POLARSSL_PLATFORM_FREE_MACRO MBEDTLS_PLATFORM_FREE_MACRO +#endif +#if defined MBEDTLS_PLATFORM_MEMORY +#define POLARSSL_PLATFORM_MEMORY MBEDTLS_PLATFORM_MEMORY +#endif +#if defined MBEDTLS_PLATFORM_NO_STD_FUNCTIONS +#define POLARSSL_PLATFORM_NO_STD_FUNCTIONS MBEDTLS_PLATFORM_NO_STD_FUNCTIONS +#endif +#if defined MBEDTLS_PLATFORM_PRINTF_ALT +#define POLARSSL_PLATFORM_PRINTF_ALT MBEDTLS_PLATFORM_PRINTF_ALT +#endif +#if defined MBEDTLS_PLATFORM_PRINTF_MACRO +#define POLARSSL_PLATFORM_PRINTF_MACRO MBEDTLS_PLATFORM_PRINTF_MACRO +#endif +#if defined MBEDTLS_PLATFORM_SNPRINTF_ALT +#define POLARSSL_PLATFORM_SNPRINTF_ALT MBEDTLS_PLATFORM_SNPRINTF_ALT +#endif +#if defined MBEDTLS_PLATFORM_SNPRINTF_MACRO +#define POLARSSL_PLATFORM_SNPRINTF_MACRO MBEDTLS_PLATFORM_SNPRINTF_MACRO +#endif +#if defined MBEDTLS_PLATFORM_STD_EXIT +#define POLARSSL_PLATFORM_STD_EXIT MBEDTLS_PLATFORM_STD_EXIT +#endif +#if defined MBEDTLS_PLATFORM_STD_FPRINTF +#define POLARSSL_PLATFORM_STD_FPRINTF MBEDTLS_PLATFORM_STD_FPRINTF +#endif +#if defined MBEDTLS_PLATFORM_STD_FREE +#define POLARSSL_PLATFORM_STD_FREE MBEDTLS_PLATFORM_STD_FREE +#endif +#if defined MBEDTLS_PLATFORM_STD_MALLOC +#define POLARSSL_PLATFORM_STD_MALLOC MBEDTLS_PLATFORM_STD_MALLOC +#endif +#if defined MBEDTLS_PLATFORM_STD_MEM_HDR +#define POLARSSL_PLATFORM_STD_MEM_HDR MBEDTLS_PLATFORM_STD_MEM_HDR +#endif +#if defined MBEDTLS_PLATFORM_STD_PRINTF +#define POLARSSL_PLATFORM_STD_PRINTF MBEDTLS_PLATFORM_STD_PRINTF +#endif +#if defined MBEDTLS_PLATFORM_STD_SNPRINTF +#define POLARSSL_PLATFORM_STD_SNPRINTF MBEDTLS_PLATFORM_STD_SNPRINTF +#endif +#if defined MBEDTLS_PSK_MAX_LEN +#define POLARSSL_PSK_MAX_LEN MBEDTLS_PSK_MAX_LEN +#endif +#if defined MBEDTLS_REMOVE_ARC4_CIPHERSUITES +#define POLARSSL_REMOVE_ARC4_CIPHERSUITES MBEDTLS_REMOVE_ARC4_CIPHERSUITES +#endif +#if defined MBEDTLS_RIPEMD160_ALT +#define POLARSSL_RIPEMD160_ALT MBEDTLS_RIPEMD160_ALT +#endif +#if defined MBEDTLS_RIPEMD160_C +#define POLARSSL_RIPEMD160_C MBEDTLS_RIPEMD160_C +#endif +#if defined MBEDTLS_RIPEMD160_PROCESS_ALT +#define POLARSSL_RIPEMD160_PROCESS_ALT MBEDTLS_RIPEMD160_PROCESS_ALT +#endif +#if defined MBEDTLS_RSA_C +#define POLARSSL_RSA_C MBEDTLS_RSA_C +#endif +#if defined MBEDTLS_RSA_NO_CRT +#define POLARSSL_RSA_NO_CRT MBEDTLS_RSA_NO_CRT +#endif +#if defined MBEDTLS_SELF_TEST +#define POLARSSL_SELF_TEST MBEDTLS_SELF_TEST +#endif +#if defined MBEDTLS_SHA1_ALT +#define POLARSSL_SHA1_ALT MBEDTLS_SHA1_ALT +#endif +#if defined MBEDTLS_SHA1_C +#define POLARSSL_SHA1_C MBEDTLS_SHA1_C +#endif +#if defined MBEDTLS_SHA1_PROCESS_ALT +#define POLARSSL_SHA1_PROCESS_ALT MBEDTLS_SHA1_PROCESS_ALT +#endif +#if defined MBEDTLS_SHA256_ALT +#define POLARSSL_SHA256_ALT MBEDTLS_SHA256_ALT +#endif +#if defined MBEDTLS_SHA256_C +#define POLARSSL_SHA256_C MBEDTLS_SHA256_C +#endif +#if defined MBEDTLS_SHA256_PROCESS_ALT +#define POLARSSL_SHA256_PROCESS_ALT MBEDTLS_SHA256_PROCESS_ALT +#endif +#if defined MBEDTLS_SHA512_ALT +#define POLARSSL_SHA512_ALT MBEDTLS_SHA512_ALT +#endif +#if defined MBEDTLS_SHA512_C +#define POLARSSL_SHA512_C MBEDTLS_SHA512_C +#endif +#if defined MBEDTLS_SHA512_PROCESS_ALT +#define POLARSSL_SHA512_PROCESS_ALT MBEDTLS_SHA512_PROCESS_ALT +#endif +#if defined MBEDTLS_SSL_AEAD_RANDOM_IV +#define POLARSSL_SSL_AEAD_RANDOM_IV MBEDTLS_SSL_AEAD_RANDOM_IV +#endif +#if defined MBEDTLS_SSL_ALERT_MESSAGES +#define POLARSSL_SSL_ALERT_MESSAGES MBEDTLS_SSL_ALERT_MESSAGES +#endif +#if defined MBEDTLS_SSL_ALL_ALERT_MESSAGES +#define POLARSSL_SSL_ALL_ALERT_MESSAGES MBEDTLS_SSL_ALL_ALERT_MESSAGES +#endif +#if defined MBEDTLS_SSL_ALPN +#define POLARSSL_SSL_ALPN MBEDTLS_SSL_ALPN +#endif +#if defined MBEDTLS_SSL_CACHE_C +#define POLARSSL_SSL_CACHE_C MBEDTLS_SSL_CACHE_C +#endif +#if defined MBEDTLS_SSL_CBC_RECORD_SPLITTING +#define POLARSSL_SSL_CBC_RECORD_SPLITTING MBEDTLS_SSL_CBC_RECORD_SPLITTING +#endif +#if defined MBEDTLS_SSL_CLI_C +#define POLARSSL_SSL_CLI_C MBEDTLS_SSL_CLI_C +#endif +#if defined MBEDTLS_SSL_COOKIE_C +#define POLARSSL_SSL_COOKIE_C MBEDTLS_SSL_COOKIE_C +#endif +#if defined MBEDTLS_SSL_COOKIE_TIMEOUT +#define POLARSSL_SSL_COOKIE_TIMEOUT MBEDTLS_SSL_COOKIE_TIMEOUT +#endif +#if defined MBEDTLS_SSL_DEBUG_ALL +#define POLARSSL_SSL_DEBUG_ALL MBEDTLS_SSL_DEBUG_ALL +#endif +#if defined MBEDTLS_SSL_DISABLE_RENEGOTIATION +#define POLARSSL_SSL_DISABLE_RENEGOTIATION MBEDTLS_SSL_DISABLE_RENEGOTIATION +#endif +#if defined MBEDTLS_SSL_DTLS_ANTI_REPLAY +#define POLARSSL_SSL_DTLS_ANTI_REPLAY MBEDTLS_SSL_DTLS_ANTI_REPLAY +#endif +#if defined MBEDTLS_SSL_DTLS_BADMAC_LIMIT +#define POLARSSL_SSL_DTLS_BADMAC_LIMIT MBEDTLS_SSL_DTLS_BADMAC_LIMIT +#endif +#if defined MBEDTLS_SSL_DTLS_HELLO_VERIFY +#define POLARSSL_SSL_DTLS_HELLO_VERIFY MBEDTLS_SSL_DTLS_HELLO_VERIFY +#endif +#if defined MBEDTLS_SSL_ENCRYPT_THEN_MAC +#define POLARSSL_SSL_ENCRYPT_THEN_MAC MBEDTLS_SSL_ENCRYPT_THEN_MAC +#endif +#if defined MBEDTLS_SSL_EXTENDED_MASTER_SECRET +#define POLARSSL_SSL_EXTENDED_MASTER_SECRET MBEDTLS_SSL_EXTENDED_MASTER_SECRET +#endif +#if defined MBEDTLS_SSL_FALLBACK_SCSV +#define POLARSSL_SSL_FALLBACK_SCSV MBEDTLS_SSL_FALLBACK_SCSV +#endif +#if defined MBEDTLS_SSL_HW_RECORD_ACCEL +#define POLARSSL_SSL_HW_RECORD_ACCEL MBEDTLS_SSL_HW_RECORD_ACCEL +#endif +#if defined MBEDTLS_SSL_MAX_FRAGMENT_LENGTH +#define POLARSSL_SSL_MAX_FRAGMENT_LENGTH MBEDTLS_SSL_MAX_FRAGMENT_LENGTH +#endif +#if defined MBEDTLS_SSL_PROTO_DTLS +#define POLARSSL_SSL_PROTO_DTLS MBEDTLS_SSL_PROTO_DTLS +#endif +#if defined MBEDTLS_SSL_PROTO_SSL3 +#define POLARSSL_SSL_PROTO_SSL3 MBEDTLS_SSL_PROTO_SSL3 +#endif +#if defined MBEDTLS_SSL_PROTO_TLS1 +#define POLARSSL_SSL_PROTO_TLS1 MBEDTLS_SSL_PROTO_TLS1 +#endif +#if defined MBEDTLS_SSL_PROTO_TLS1_1 +#define POLARSSL_SSL_PROTO_TLS1_1 MBEDTLS_SSL_PROTO_TLS1_1 +#endif +#if defined MBEDTLS_SSL_PROTO_TLS1_2 +#define POLARSSL_SSL_PROTO_TLS1_2 MBEDTLS_SSL_PROTO_TLS1_2 +#endif +#if defined MBEDTLS_SSL_RENEGOTIATION +#define POLARSSL_SSL_RENEGOTIATION MBEDTLS_SSL_RENEGOTIATION +#endif +#if defined MBEDTLS_SSL_SERVER_NAME_INDICATION +#define POLARSSL_SSL_SERVER_NAME_INDICATION MBEDTLS_SSL_SERVER_NAME_INDICATION +#endif +#if defined MBEDTLS_SSL_SESSION_TICKETS +#define POLARSSL_SSL_SESSION_TICKETS MBEDTLS_SSL_SESSION_TICKETS +#endif +#if defined MBEDTLS_SSL_SRV_C +#define POLARSSL_SSL_SRV_C MBEDTLS_SSL_SRV_C +#endif +#if defined MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE +#define POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE +#endif +#if defined MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO +#define POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO +#endif +#if defined MBEDTLS_SSL_TLS_C +#define POLARSSL_SSL_TLS_C MBEDTLS_SSL_TLS_C +#endif +#if defined MBEDTLS_SSL_TRUNCATED_HMAC +#define POLARSSL_SSL_TRUNCATED_HMAC MBEDTLS_SSL_TRUNCATED_HMAC +#endif +#if defined MBEDTLS_THREADING_ALT +#define POLARSSL_THREADING_ALT MBEDTLS_THREADING_ALT +#endif +#if defined MBEDTLS_THREADING_C +#define POLARSSL_THREADING_C MBEDTLS_THREADING_C +#endif +#if defined MBEDTLS_THREADING_PTHREAD +#define POLARSSL_THREADING_PTHREAD MBEDTLS_THREADING_PTHREAD +#endif +#if defined MBEDTLS_TIMING_ALT +#define POLARSSL_TIMING_ALT MBEDTLS_TIMING_ALT +#endif +#if defined MBEDTLS_TIMING_C +#define POLARSSL_TIMING_C MBEDTLS_TIMING_C +#endif +#if defined MBEDTLS_VERSION_C +#define POLARSSL_VERSION_C MBEDTLS_VERSION_C +#endif +#if defined MBEDTLS_VERSION_FEATURES +#define POLARSSL_VERSION_FEATURES MBEDTLS_VERSION_FEATURES +#endif +#if defined MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 +#define POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3 MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 +#endif +#if defined MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION +#define POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION +#endif +#if defined MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE +#define POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE +#endif +#if defined MBEDTLS_X509_CHECK_KEY_USAGE +#define POLARSSL_X509_CHECK_KEY_USAGE MBEDTLS_X509_CHECK_KEY_USAGE +#endif +#if defined MBEDTLS_X509_CREATE_C +#define POLARSSL_X509_CREATE_C MBEDTLS_X509_CREATE_C +#endif +#if defined MBEDTLS_X509_CRL_PARSE_C +#define POLARSSL_X509_CRL_PARSE_C MBEDTLS_X509_CRL_PARSE_C +#endif +#if defined MBEDTLS_X509_CRT_PARSE_C +#define POLARSSL_X509_CRT_PARSE_C MBEDTLS_X509_CRT_PARSE_C +#endif +#if defined MBEDTLS_X509_CRT_WRITE_C +#define POLARSSL_X509_CRT_WRITE_C MBEDTLS_X509_CRT_WRITE_C +#endif +#if defined MBEDTLS_X509_CSR_PARSE_C +#define POLARSSL_X509_CSR_PARSE_C MBEDTLS_X509_CSR_PARSE_C +#endif +#if defined MBEDTLS_X509_CSR_WRITE_C +#define POLARSSL_X509_CSR_WRITE_C MBEDTLS_X509_CSR_WRITE_C +#endif +#if defined MBEDTLS_X509_MAX_INTERMEDIATE_CA +#define POLARSSL_X509_MAX_INTERMEDIATE_CA MBEDTLS_X509_MAX_INTERMEDIATE_CA +#endif +#if defined MBEDTLS_X509_RSASSA_PSS_SUPPORT +#define POLARSSL_X509_RSASSA_PSS_SUPPORT MBEDTLS_X509_RSASSA_PSS_SUPPORT +#endif +#if defined MBEDTLS_X509_USE_C +#define POLARSSL_X509_USE_C MBEDTLS_X509_USE_C +#endif +#if defined MBEDTLS_XTEA_ALT +#define POLARSSL_XTEA_ALT MBEDTLS_XTEA_ALT +#endif +#if defined MBEDTLS_XTEA_C +#define POLARSSL_XTEA_C MBEDTLS_XTEA_C +#endif +#if defined MBEDTLS_ZLIB_SUPPORT +#define POLARSSL_ZLIB_SUPPORT MBEDTLS_ZLIB_SUPPORT +#endif + +/* + * Misc names (macros, types, functions, enum constants...) + */ +#define AES_DECRYPT MBEDTLS_AES_DECRYPT +#define AES_ENCRYPT MBEDTLS_AES_ENCRYPT +#define ASN1_BIT_STRING MBEDTLS_ASN1_BIT_STRING +#define ASN1_BMP_STRING MBEDTLS_ASN1_BMP_STRING +#define ASN1_BOOLEAN MBEDTLS_ASN1_BOOLEAN +#define ASN1_CHK_ADD MBEDTLS_ASN1_CHK_ADD +#define ASN1_CONSTRUCTED MBEDTLS_ASN1_CONSTRUCTED +#define ASN1_CONTEXT_SPECIFIC MBEDTLS_ASN1_CONTEXT_SPECIFIC +#define ASN1_GENERALIZED_TIME MBEDTLS_ASN1_GENERALIZED_TIME +#define ASN1_IA5_STRING MBEDTLS_ASN1_IA5_STRING +#define ASN1_INTEGER MBEDTLS_ASN1_INTEGER +#define ASN1_NULL MBEDTLS_ASN1_NULL +#define ASN1_OCTET_STRING MBEDTLS_ASN1_OCTET_STRING +#define ASN1_OID MBEDTLS_ASN1_OID +#define ASN1_PRIMITIVE MBEDTLS_ASN1_PRIMITIVE +#define ASN1_PRINTABLE_STRING MBEDTLS_ASN1_PRINTABLE_STRING +#define ASN1_SEQUENCE MBEDTLS_ASN1_SEQUENCE +#define ASN1_SET MBEDTLS_ASN1_SET +#define ASN1_T61_STRING MBEDTLS_ASN1_T61_STRING +#define ASN1_UNIVERSAL_STRING MBEDTLS_ASN1_UNIVERSAL_STRING +#define ASN1_UTC_TIME MBEDTLS_ASN1_UTC_TIME +#define ASN1_UTF8_STRING MBEDTLS_ASN1_UTF8_STRING +#define BADCERT_CN_MISMATCH MBEDTLS_X509_BADCERT_CN_MISMATCH +#define BADCERT_EXPIRED MBEDTLS_X509_BADCERT_EXPIRED +#define BADCERT_FUTURE MBEDTLS_X509_BADCERT_FUTURE +#define BADCERT_MISSING MBEDTLS_X509_BADCERT_MISSING +#define BADCERT_NOT_TRUSTED MBEDTLS_X509_BADCERT_NOT_TRUSTED +#define BADCERT_OTHER MBEDTLS_X509_BADCERT_OTHER +#define BADCERT_REVOKED MBEDTLS_X509_BADCERT_REVOKED +#define BADCERT_SKIP_VERIFY MBEDTLS_X509_BADCERT_SKIP_VERIFY +#define BADCRL_EXPIRED MBEDTLS_X509_BADCRL_EXPIRED +#define BADCRL_FUTURE MBEDTLS_X509_BADCRL_FUTURE +#define BADCRL_NOT_TRUSTED MBEDTLS_X509_BADCRL_NOT_TRUSTED +#define BLOWFISH_BLOCKSIZE MBEDTLS_BLOWFISH_BLOCKSIZE +#define BLOWFISH_DECRYPT MBEDTLS_BLOWFISH_DECRYPT +#define BLOWFISH_ENCRYPT MBEDTLS_BLOWFISH_ENCRYPT +#define BLOWFISH_MAX_KEY MBEDTLS_BLOWFISH_MAX_KEY_BITS +#define BLOWFISH_MIN_KEY MBEDTLS_BLOWFISH_MIN_KEY_BITS +#define BLOWFISH_ROUNDS MBEDTLS_BLOWFISH_ROUNDS +#define CAMELLIA_DECRYPT MBEDTLS_CAMELLIA_DECRYPT +#define CAMELLIA_ENCRYPT MBEDTLS_CAMELLIA_ENCRYPT +#define COLLECT_SIZE MBEDTLS_HAVEGE_COLLECT_SIZE +#define CTR_DRBG_BLOCKSIZE MBEDTLS_CTR_DRBG_BLOCKSIZE +#define CTR_DRBG_ENTROPY_LEN MBEDTLS_CTR_DRBG_ENTROPY_LEN +#define CTR_DRBG_KEYBITS MBEDTLS_CTR_DRBG_KEYBITS +#define CTR_DRBG_KEYSIZE MBEDTLS_CTR_DRBG_KEYSIZE +#define CTR_DRBG_MAX_INPUT MBEDTLS_CTR_DRBG_MAX_INPUT +#define CTR_DRBG_MAX_REQUEST MBEDTLS_CTR_DRBG_MAX_REQUEST +#define CTR_DRBG_MAX_SEED_INPUT MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +#define CTR_DRBG_PR_OFF MBEDTLS_CTR_DRBG_PR_OFF +#define CTR_DRBG_PR_ON MBEDTLS_CTR_DRBG_PR_ON +#define CTR_DRBG_RESEED_INTERVAL MBEDTLS_CTR_DRBG_RESEED_INTERVAL +#define CTR_DRBG_SEEDLEN MBEDTLS_CTR_DRBG_SEEDLEN +#define DEPRECATED MBEDTLS_DEPRECATED +#define DES_DECRYPT MBEDTLS_DES_DECRYPT +#define DES_ENCRYPT MBEDTLS_DES_ENCRYPT +#define DES_KEY_SIZE MBEDTLS_DES_KEY_SIZE +#define ENTROPY_BLOCK_SIZE MBEDTLS_ENTROPY_BLOCK_SIZE +#define ENTROPY_MAX_GATHER MBEDTLS_ENTROPY_MAX_GATHER +#define ENTROPY_MAX_SEED_SIZE MBEDTLS_ENTROPY_MAX_SEED_SIZE +#define ENTROPY_MAX_SOURCES MBEDTLS_ENTROPY_MAX_SOURCES +#define ENTROPY_MIN_HARDCLOCK MBEDTLS_ENTROPY_MIN_HARDCLOCK +#define ENTROPY_MIN_HAVEGE MBEDTLS_ENTROPY_MIN_HAVEGE +#define ENTROPY_MIN_PLATFORM MBEDTLS_ENTROPY_MIN_PLATFORM +#define ENTROPY_SOURCE_MANUAL MBEDTLS_ENTROPY_SOURCE_MANUAL +#define EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER +#define EXT_BASIC_CONSTRAINTS MBEDTLS_X509_EXT_BASIC_CONSTRAINTS +#define EXT_CERTIFICATE_POLICIES MBEDTLS_X509_EXT_CERTIFICATE_POLICIES +#define EXT_CRL_DISTRIBUTION_POINTS MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS +#define EXT_EXTENDED_KEY_USAGE MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE +#define EXT_FRESHEST_CRL MBEDTLS_X509_EXT_FRESHEST_CRL +#define EXT_INIHIBIT_ANYPOLICY MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY +#define EXT_ISSUER_ALT_NAME MBEDTLS_X509_EXT_ISSUER_ALT_NAME +#define EXT_KEY_USAGE MBEDTLS_X509_EXT_KEY_USAGE +#define EXT_NAME_CONSTRAINTS MBEDTLS_X509_EXT_NAME_CONSTRAINTS +#define EXT_NS_CERT_TYPE MBEDTLS_X509_EXT_NS_CERT_TYPE +#define EXT_POLICY_CONSTRAINTS MBEDTLS_X509_EXT_POLICY_CONSTRAINTS +#define EXT_POLICY_MAPPINGS MBEDTLS_X509_EXT_POLICY_MAPPINGS +#define EXT_SUBJECT_ALT_NAME MBEDTLS_X509_EXT_SUBJECT_ALT_NAME +#define EXT_SUBJECT_DIRECTORY_ATTRS MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS +#define EXT_SUBJECT_KEY_IDENTIFIER MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER +#define GCM_DECRYPT MBEDTLS_GCM_DECRYPT +#define GCM_ENCRYPT MBEDTLS_GCM_ENCRYPT +#define KU_CRL_SIGN MBEDTLS_X509_KU_CRL_SIGN +#define KU_DATA_ENCIPHERMENT MBEDTLS_X509_KU_DATA_ENCIPHERMENT +#define KU_DIGITAL_SIGNATURE MBEDTLS_X509_KU_DIGITAL_SIGNATURE +#define KU_KEY_AGREEMENT MBEDTLS_X509_KU_KEY_AGREEMENT +#define KU_KEY_CERT_SIGN MBEDTLS_X509_KU_KEY_CERT_SIGN +#define KU_KEY_ENCIPHERMENT MBEDTLS_X509_KU_KEY_ENCIPHERMENT +#define KU_NON_REPUDIATION MBEDTLS_X509_KU_NON_REPUDIATION +#define LN_2_DIV_LN_10_SCALE100 MBEDTLS_LN_2_DIV_LN_10_SCALE100 +#define MD_CONTEXT_T_INIT MBEDTLS_MD_CONTEXT_T_INIT +#define MEMORY_VERIFY_ALLOC MBEDTLS_MEMORY_VERIFY_ALLOC +#define MEMORY_VERIFY_ALWAYS MBEDTLS_MEMORY_VERIFY_ALWAYS +#define MEMORY_VERIFY_FREE MBEDTLS_MEMORY_VERIFY_FREE +#define MEMORY_VERIFY_NONE MBEDTLS_MEMORY_VERIFY_NONE +#define MPI_CHK MBEDTLS_MPI_CHK +#define NET_PROTO_TCP MBEDTLS_NET_PROTO_TCP +#define NET_PROTO_UDP MBEDTLS_NET_PROTO_UDP +#define NS_CERT_TYPE_EMAIL MBEDTLS_X509_NS_CERT_TYPE_EMAIL +#define NS_CERT_TYPE_EMAIL_CA MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA +#define NS_CERT_TYPE_OBJECT_SIGNING MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING +#define NS_CERT_TYPE_OBJECT_SIGNING_CA MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA +#define NS_CERT_TYPE_RESERVED MBEDTLS_X509_NS_CERT_TYPE_RESERVED +#define NS_CERT_TYPE_SSL_CA MBEDTLS_X509_NS_CERT_TYPE_SSL_CA +#define NS_CERT_TYPE_SSL_CLIENT MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT +#define NS_CERT_TYPE_SSL_SERVER MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER +#define OID_ANSI_X9_62 MBEDTLS_OID_ANSI_X9_62 +#define OID_ANSI_X9_62_FIELD_TYPE MBEDTLS_OID_ANSI_X9_62_FIELD_TYPE +#define OID_ANSI_X9_62_PRIME_FIELD MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD +#define OID_ANSI_X9_62_SIG MBEDTLS_OID_ANSI_X9_62_SIG +#define OID_ANSI_X9_62_SIG_SHA2 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 +#define OID_ANY_EXTENDED_KEY_USAGE MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE +#define OID_AT MBEDTLS_OID_AT +#define OID_AT_CN MBEDTLS_OID_AT_CN +#define OID_AT_COUNTRY MBEDTLS_OID_AT_COUNTRY +#define OID_AT_DN_QUALIFIER MBEDTLS_OID_AT_DN_QUALIFIER +#define OID_AT_GENERATION_QUALIFIER MBEDTLS_OID_AT_GENERATION_QUALIFIER +#define OID_AT_GIVEN_NAME MBEDTLS_OID_AT_GIVEN_NAME +#define OID_AT_INITIALS MBEDTLS_OID_AT_INITIALS +#define OID_AT_LOCALITY MBEDTLS_OID_AT_LOCALITY +#define OID_AT_ORGANIZATION MBEDTLS_OID_AT_ORGANIZATION +#define OID_AT_ORG_UNIT MBEDTLS_OID_AT_ORG_UNIT +#define OID_AT_POSTAL_ADDRESS MBEDTLS_OID_AT_POSTAL_ADDRESS +#define OID_AT_POSTAL_CODE MBEDTLS_OID_AT_POSTAL_CODE +#define OID_AT_PSEUDONYM MBEDTLS_OID_AT_PSEUDONYM +#define OID_AT_SERIAL_NUMBER MBEDTLS_OID_AT_SERIAL_NUMBER +#define OID_AT_STATE MBEDTLS_OID_AT_STATE +#define OID_AT_SUR_NAME MBEDTLS_OID_AT_SUR_NAME +#define OID_AT_TITLE MBEDTLS_OID_AT_TITLE +#define OID_AT_UNIQUE_IDENTIFIER MBEDTLS_OID_AT_UNIQUE_IDENTIFIER +#define OID_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER +#define OID_BASIC_CONSTRAINTS MBEDTLS_OID_BASIC_CONSTRAINTS +#define OID_CERTICOM MBEDTLS_OID_CERTICOM +#define OID_CERTIFICATE_POLICIES MBEDTLS_OID_CERTIFICATE_POLICIES +#define OID_CLIENT_AUTH MBEDTLS_OID_CLIENT_AUTH +#define OID_CMP MBEDTLS_OID_CMP +#define OID_CODE_SIGNING MBEDTLS_OID_CODE_SIGNING +#define OID_COUNTRY_US MBEDTLS_OID_COUNTRY_US +#define OID_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_CRL_DISTRIBUTION_POINTS +#define OID_CRL_NUMBER MBEDTLS_OID_CRL_NUMBER +#define OID_DES_CBC MBEDTLS_OID_DES_CBC +#define OID_DES_EDE3_CBC MBEDTLS_OID_DES_EDE3_CBC +#define OID_DIGEST_ALG_MD2 MBEDTLS_OID_DIGEST_ALG_MD2 +#define OID_DIGEST_ALG_MD4 MBEDTLS_OID_DIGEST_ALG_MD4 +#define OID_DIGEST_ALG_MD5 MBEDTLS_OID_DIGEST_ALG_MD5 +#define OID_DIGEST_ALG_SHA1 MBEDTLS_OID_DIGEST_ALG_SHA1 +#define OID_DIGEST_ALG_SHA224 MBEDTLS_OID_DIGEST_ALG_SHA224 +#define OID_DIGEST_ALG_SHA256 MBEDTLS_OID_DIGEST_ALG_SHA256 +#define OID_DIGEST_ALG_SHA384 MBEDTLS_OID_DIGEST_ALG_SHA384 +#define OID_DIGEST_ALG_SHA512 MBEDTLS_OID_DIGEST_ALG_SHA512 +#define OID_DOMAIN_COMPONENT MBEDTLS_OID_DOMAIN_COMPONENT +#define OID_ECDSA_SHA1 MBEDTLS_OID_ECDSA_SHA1 +#define OID_ECDSA_SHA224 MBEDTLS_OID_ECDSA_SHA224 +#define OID_ECDSA_SHA256 MBEDTLS_OID_ECDSA_SHA256 +#define OID_ECDSA_SHA384 MBEDTLS_OID_ECDSA_SHA384 +#define OID_ECDSA_SHA512 MBEDTLS_OID_ECDSA_SHA512 +#define OID_EC_ALG_ECDH MBEDTLS_OID_EC_ALG_ECDH +#define OID_EC_ALG_UNRESTRICTED MBEDTLS_OID_EC_ALG_UNRESTRICTED +#define OID_EC_BRAINPOOL_V1 MBEDTLS_OID_EC_BRAINPOOL_V1 +#define OID_EC_GRP_BP256R1 MBEDTLS_OID_EC_GRP_BP256R1 +#define OID_EC_GRP_BP384R1 MBEDTLS_OID_EC_GRP_BP384R1 +#define OID_EC_GRP_BP512R1 MBEDTLS_OID_EC_GRP_BP512R1 +#define OID_EC_GRP_SECP192K1 MBEDTLS_OID_EC_GRP_SECP192K1 +#define OID_EC_GRP_SECP192R1 MBEDTLS_OID_EC_GRP_SECP192R1 +#define OID_EC_GRP_SECP224K1 MBEDTLS_OID_EC_GRP_SECP224K1 +#define OID_EC_GRP_SECP224R1 MBEDTLS_OID_EC_GRP_SECP224R1 +#define OID_EC_GRP_SECP256K1 MBEDTLS_OID_EC_GRP_SECP256K1 +#define OID_EC_GRP_SECP256R1 MBEDTLS_OID_EC_GRP_SECP256R1 +#define OID_EC_GRP_SECP384R1 MBEDTLS_OID_EC_GRP_SECP384R1 +#define OID_EC_GRP_SECP521R1 MBEDTLS_OID_EC_GRP_SECP521R1 +#define OID_EMAIL_PROTECTION MBEDTLS_OID_EMAIL_PROTECTION +#define OID_EXTENDED_KEY_USAGE MBEDTLS_OID_EXTENDED_KEY_USAGE +#define OID_FRESHEST_CRL MBEDTLS_OID_FRESHEST_CRL +#define OID_GOV MBEDTLS_OID_GOV +#define OID_HMAC_SHA1 MBEDTLS_OID_HMAC_SHA1 +#define OID_ID_CE MBEDTLS_OID_ID_CE +#define OID_INIHIBIT_ANYPOLICY MBEDTLS_OID_INIHIBIT_ANYPOLICY +#define OID_ISO_CCITT_DS MBEDTLS_OID_ISO_CCITT_DS +#define OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ISO_IDENTIFIED_ORG +#define OID_ISO_ITU_COUNTRY MBEDTLS_OID_ISO_ITU_COUNTRY +#define OID_ISO_ITU_US_ORG MBEDTLS_OID_ISO_ITU_US_ORG +#define OID_ISO_MEMBER_BODIES MBEDTLS_OID_ISO_MEMBER_BODIES +#define OID_ISSUER_ALT_NAME MBEDTLS_OID_ISSUER_ALT_NAME +#define OID_KEY_USAGE MBEDTLS_OID_KEY_USAGE +#define OID_KP MBEDTLS_OID_KP +#define OID_MGF1 MBEDTLS_OID_MGF1 +#define OID_NAME_CONSTRAINTS MBEDTLS_OID_NAME_CONSTRAINTS +#define OID_NETSCAPE MBEDTLS_OID_NETSCAPE +#define OID_NS_BASE_URL MBEDTLS_OID_NS_BASE_URL +#define OID_NS_CA_POLICY_URL MBEDTLS_OID_NS_CA_POLICY_URL +#define OID_NS_CA_REVOCATION_URL MBEDTLS_OID_NS_CA_REVOCATION_URL +#define OID_NS_CERT MBEDTLS_OID_NS_CERT +#define OID_NS_CERT_SEQUENCE MBEDTLS_OID_NS_CERT_SEQUENCE +#define OID_NS_CERT_TYPE MBEDTLS_OID_NS_CERT_TYPE +#define OID_NS_COMMENT MBEDTLS_OID_NS_COMMENT +#define OID_NS_DATA_TYPE MBEDTLS_OID_NS_DATA_TYPE +#define OID_NS_RENEWAL_URL MBEDTLS_OID_NS_RENEWAL_URL +#define OID_NS_REVOCATION_URL MBEDTLS_OID_NS_REVOCATION_URL +#define OID_NS_SSL_SERVER_NAME MBEDTLS_OID_NS_SSL_SERVER_NAME +#define OID_OCSP_SIGNING MBEDTLS_OID_OCSP_SIGNING +#define OID_OIW_SECSIG MBEDTLS_OID_OIW_SECSIG +#define OID_OIW_SECSIG_ALG MBEDTLS_OID_OIW_SECSIG_ALG +#define OID_OIW_SECSIG_SHA1 MBEDTLS_OID_OIW_SECSIG_SHA1 +#define OID_ORGANIZATION MBEDTLS_OID_ORGANIZATION +#define OID_ORG_ANSI_X9_62 MBEDTLS_OID_ORG_ANSI_X9_62 +#define OID_ORG_CERTICOM MBEDTLS_OID_ORG_CERTICOM +#define OID_ORG_DOD MBEDTLS_OID_ORG_DOD +#define OID_ORG_GOV MBEDTLS_OID_ORG_GOV +#define OID_ORG_NETSCAPE MBEDTLS_OID_ORG_NETSCAPE +#define OID_ORG_OIW MBEDTLS_OID_ORG_OIW +#define OID_ORG_RSA_DATA_SECURITY MBEDTLS_OID_ORG_RSA_DATA_SECURITY +#define OID_ORG_TELETRUST MBEDTLS_OID_ORG_TELETRUST +#define OID_PKCS MBEDTLS_OID_PKCS +#define OID_PKCS1 MBEDTLS_OID_PKCS1 +#define OID_PKCS12 MBEDTLS_OID_PKCS12 +#define OID_PKCS12_PBE MBEDTLS_OID_PKCS12_PBE +#define OID_PKCS12_PBE_SHA1_DES2_EDE_CBC MBEDTLS_OID_PKCS12_PBE_SHA1_DES2_EDE_CBC +#define OID_PKCS12_PBE_SHA1_DES3_EDE_CBC MBEDTLS_OID_PKCS12_PBE_SHA1_DES3_EDE_CBC +#define OID_PKCS12_PBE_SHA1_RC2_128_CBC MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_128_CBC +#define OID_PKCS12_PBE_SHA1_RC2_40_CBC MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_40_CBC +#define OID_PKCS12_PBE_SHA1_RC4_128 MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_128 +#define OID_PKCS12_PBE_SHA1_RC4_40 MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_40 +#define OID_PKCS1_MD2 MBEDTLS_OID_PKCS1_MD2 +#define OID_PKCS1_MD4 MBEDTLS_OID_PKCS1_MD4 +#define OID_PKCS1_MD5 MBEDTLS_OID_PKCS1_MD5 +#define OID_PKCS1_RSA MBEDTLS_OID_PKCS1_RSA +#define OID_PKCS1_SHA1 MBEDTLS_OID_PKCS1_SHA1 +#define OID_PKCS1_SHA224 MBEDTLS_OID_PKCS1_SHA224 +#define OID_PKCS1_SHA256 MBEDTLS_OID_PKCS1_SHA256 +#define OID_PKCS1_SHA384 MBEDTLS_OID_PKCS1_SHA384 +#define OID_PKCS1_SHA512 MBEDTLS_OID_PKCS1_SHA512 +#define OID_PKCS5 MBEDTLS_OID_PKCS5 +#define OID_PKCS5_PBES2 MBEDTLS_OID_PKCS5_PBES2 +#define OID_PKCS5_PBE_MD2_DES_CBC MBEDTLS_OID_PKCS5_PBE_MD2_DES_CBC +#define OID_PKCS5_PBE_MD2_RC2_CBC MBEDTLS_OID_PKCS5_PBE_MD2_RC2_CBC +#define OID_PKCS5_PBE_MD5_DES_CBC MBEDTLS_OID_PKCS5_PBE_MD5_DES_CBC +#define OID_PKCS5_PBE_MD5_RC2_CBC MBEDTLS_OID_PKCS5_PBE_MD5_RC2_CBC +#define OID_PKCS5_PBE_SHA1_DES_CBC MBEDTLS_OID_PKCS5_PBE_SHA1_DES_CBC +#define OID_PKCS5_PBE_SHA1_RC2_CBC MBEDTLS_OID_PKCS5_PBE_SHA1_RC2_CBC +#define OID_PKCS5_PBKDF2 MBEDTLS_OID_PKCS5_PBKDF2 +#define OID_PKCS5_PBMAC1 MBEDTLS_OID_PKCS5_PBMAC1 +#define OID_PKCS9 MBEDTLS_OID_PKCS9 +#define OID_PKCS9_CSR_EXT_REQ MBEDTLS_OID_PKCS9_CSR_EXT_REQ +#define OID_PKCS9_EMAIL MBEDTLS_OID_PKCS9_EMAIL +#define OID_PKIX MBEDTLS_OID_PKIX +#define OID_POLICY_CONSTRAINTS MBEDTLS_OID_POLICY_CONSTRAINTS +#define OID_POLICY_MAPPINGS MBEDTLS_OID_POLICY_MAPPINGS +#define OID_PRIVATE_KEY_USAGE_PERIOD MBEDTLS_OID_PRIVATE_KEY_USAGE_PERIOD +#define OID_RSASSA_PSS MBEDTLS_OID_RSASSA_PSS +#define OID_RSA_COMPANY MBEDTLS_OID_RSA_COMPANY +#define OID_RSA_SHA_OBS MBEDTLS_OID_RSA_SHA_OBS +#define OID_SERVER_AUTH MBEDTLS_OID_SERVER_AUTH +#define OID_SIZE MBEDTLS_OID_SIZE +#define OID_SUBJECT_ALT_NAME MBEDTLS_OID_SUBJECT_ALT_NAME +#define OID_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_SUBJECT_DIRECTORY_ATTRS +#define OID_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER +#define OID_TELETRUST MBEDTLS_OID_TELETRUST +#define OID_TIME_STAMPING MBEDTLS_OID_TIME_STAMPING +#define PADLOCK_ACE MBEDTLS_PADLOCK_ACE +#define PADLOCK_ALIGN16 MBEDTLS_PADLOCK_ALIGN16 +#define PADLOCK_PHE MBEDTLS_PADLOCK_PHE +#define PADLOCK_PMM MBEDTLS_PADLOCK_PMM +#define PADLOCK_RNG MBEDTLS_PADLOCK_RNG +#define PKCS12_DERIVE_IV MBEDTLS_PKCS12_DERIVE_IV +#define PKCS12_DERIVE_KEY MBEDTLS_PKCS12_DERIVE_KEY +#define PKCS12_DERIVE_MAC_KEY MBEDTLS_PKCS12_DERIVE_MAC_KEY +#define PKCS12_PBE_DECRYPT MBEDTLS_PKCS12_PBE_DECRYPT +#define PKCS12_PBE_ENCRYPT MBEDTLS_PKCS12_PBE_ENCRYPT +#define PKCS5_DECRYPT MBEDTLS_PKCS5_DECRYPT +#define PKCS5_ENCRYPT MBEDTLS_PKCS5_ENCRYPT +#define POLARSSL_AESNI_AES MBEDTLS_AESNI_AES +#define POLARSSL_AESNI_CLMUL MBEDTLS_AESNI_CLMUL +#define POLARSSL_AESNI_H MBEDTLS_AESNI_H +#define POLARSSL_AES_H MBEDTLS_AES_H +#define POLARSSL_ARC4_H MBEDTLS_ARC4_H +#define POLARSSL_ASN1_H MBEDTLS_ASN1_H +#define POLARSSL_ASN1_WRITE_H MBEDTLS_ASN1_WRITE_H +#define POLARSSL_BASE64_H MBEDTLS_BASE64_H +#define POLARSSL_BIGNUM_H MBEDTLS_BIGNUM_H +#define POLARSSL_BLOWFISH_H MBEDTLS_BLOWFISH_H +#define POLARSSL_BN_MUL_H MBEDTLS_BN_MUL_H +#define POLARSSL_CAMELLIA_H MBEDTLS_CAMELLIA_H +#define POLARSSL_CCM_H MBEDTLS_CCM_H +#define POLARSSL_CERTS_H MBEDTLS_CERTS_H +#define POLARSSL_CHECK_CONFIG_H MBEDTLS_CHECK_CONFIG_H +#define POLARSSL_CIPHERSUITE_NODTLS MBEDTLS_CIPHERSUITE_NODTLS +#define POLARSSL_CIPHERSUITE_SHORT_TAG MBEDTLS_CIPHERSUITE_SHORT_TAG +#define POLARSSL_CIPHERSUITE_WEAK MBEDTLS_CIPHERSUITE_WEAK +#define POLARSSL_CIPHER_AES_128_CBC MBEDTLS_CIPHER_AES_128_CBC +#define POLARSSL_CIPHER_AES_128_CCM MBEDTLS_CIPHER_AES_128_CCM +#define POLARSSL_CIPHER_AES_128_CFB128 MBEDTLS_CIPHER_AES_128_CFB128 +#define POLARSSL_CIPHER_AES_128_CTR MBEDTLS_CIPHER_AES_128_CTR +#define POLARSSL_CIPHER_AES_128_ECB MBEDTLS_CIPHER_AES_128_ECB +#define POLARSSL_CIPHER_AES_128_GCM MBEDTLS_CIPHER_AES_128_GCM +#define POLARSSL_CIPHER_AES_192_CBC MBEDTLS_CIPHER_AES_192_CBC +#define POLARSSL_CIPHER_AES_192_CCM MBEDTLS_CIPHER_AES_192_CCM +#define POLARSSL_CIPHER_AES_192_CFB128 MBEDTLS_CIPHER_AES_192_CFB128 +#define POLARSSL_CIPHER_AES_192_CTR MBEDTLS_CIPHER_AES_192_CTR +#define POLARSSL_CIPHER_AES_192_ECB MBEDTLS_CIPHER_AES_192_ECB +#define POLARSSL_CIPHER_AES_192_GCM MBEDTLS_CIPHER_AES_192_GCM +#define POLARSSL_CIPHER_AES_256_CBC MBEDTLS_CIPHER_AES_256_CBC +#define POLARSSL_CIPHER_AES_256_CCM MBEDTLS_CIPHER_AES_256_CCM +#define POLARSSL_CIPHER_AES_256_CFB128 MBEDTLS_CIPHER_AES_256_CFB128 +#define POLARSSL_CIPHER_AES_256_CTR MBEDTLS_CIPHER_AES_256_CTR +#define POLARSSL_CIPHER_AES_256_ECB MBEDTLS_CIPHER_AES_256_ECB +#define POLARSSL_CIPHER_AES_256_GCM MBEDTLS_CIPHER_AES_256_GCM +#define POLARSSL_CIPHER_ARC4_128 MBEDTLS_CIPHER_ARC4_128 +#define POLARSSL_CIPHER_BLOWFISH_CBC MBEDTLS_CIPHER_BLOWFISH_CBC +#define POLARSSL_CIPHER_BLOWFISH_CFB64 MBEDTLS_CIPHER_BLOWFISH_CFB64 +#define POLARSSL_CIPHER_BLOWFISH_CTR MBEDTLS_CIPHER_BLOWFISH_CTR +#define POLARSSL_CIPHER_BLOWFISH_ECB MBEDTLS_CIPHER_BLOWFISH_ECB +#define POLARSSL_CIPHER_CAMELLIA_128_CBC MBEDTLS_CIPHER_CAMELLIA_128_CBC +#define POLARSSL_CIPHER_CAMELLIA_128_CCM MBEDTLS_CIPHER_CAMELLIA_128_CCM +#define POLARSSL_CIPHER_CAMELLIA_128_CFB128 MBEDTLS_CIPHER_CAMELLIA_128_CFB128 +#define POLARSSL_CIPHER_CAMELLIA_128_CTR MBEDTLS_CIPHER_CAMELLIA_128_CTR +#define POLARSSL_CIPHER_CAMELLIA_128_ECB MBEDTLS_CIPHER_CAMELLIA_128_ECB +#define POLARSSL_CIPHER_CAMELLIA_128_GCM MBEDTLS_CIPHER_CAMELLIA_128_GCM +#define POLARSSL_CIPHER_CAMELLIA_192_CBC MBEDTLS_CIPHER_CAMELLIA_192_CBC +#define POLARSSL_CIPHER_CAMELLIA_192_CCM MBEDTLS_CIPHER_CAMELLIA_192_CCM +#define POLARSSL_CIPHER_CAMELLIA_192_CFB128 MBEDTLS_CIPHER_CAMELLIA_192_CFB128 +#define POLARSSL_CIPHER_CAMELLIA_192_CTR MBEDTLS_CIPHER_CAMELLIA_192_CTR +#define POLARSSL_CIPHER_CAMELLIA_192_ECB MBEDTLS_CIPHER_CAMELLIA_192_ECB +#define POLARSSL_CIPHER_CAMELLIA_192_GCM MBEDTLS_CIPHER_CAMELLIA_192_GCM +#define POLARSSL_CIPHER_CAMELLIA_256_CBC MBEDTLS_CIPHER_CAMELLIA_256_CBC +#define POLARSSL_CIPHER_CAMELLIA_256_CCM MBEDTLS_CIPHER_CAMELLIA_256_CCM +#define POLARSSL_CIPHER_CAMELLIA_256_CFB128 MBEDTLS_CIPHER_CAMELLIA_256_CFB128 +#define POLARSSL_CIPHER_CAMELLIA_256_CTR MBEDTLS_CIPHER_CAMELLIA_256_CTR +#define POLARSSL_CIPHER_CAMELLIA_256_ECB MBEDTLS_CIPHER_CAMELLIA_256_ECB +#define POLARSSL_CIPHER_CAMELLIA_256_GCM MBEDTLS_CIPHER_CAMELLIA_256_GCM +#define POLARSSL_CIPHER_DES_CBC MBEDTLS_CIPHER_DES_CBC +#define POLARSSL_CIPHER_DES_ECB MBEDTLS_CIPHER_DES_ECB +#define POLARSSL_CIPHER_DES_EDE3_CBC MBEDTLS_CIPHER_DES_EDE3_CBC +#define POLARSSL_CIPHER_DES_EDE3_ECB MBEDTLS_CIPHER_DES_EDE3_ECB +#define POLARSSL_CIPHER_DES_EDE_CBC MBEDTLS_CIPHER_DES_EDE_CBC +#define POLARSSL_CIPHER_DES_EDE_ECB MBEDTLS_CIPHER_DES_EDE_ECB +#define POLARSSL_CIPHER_H MBEDTLS_CIPHER_H +#define POLARSSL_CIPHER_ID_3DES MBEDTLS_CIPHER_ID_3DES +#define POLARSSL_CIPHER_ID_AES MBEDTLS_CIPHER_ID_AES +#define POLARSSL_CIPHER_ID_ARC4 MBEDTLS_CIPHER_ID_ARC4 +#define POLARSSL_CIPHER_ID_BLOWFISH MBEDTLS_CIPHER_ID_BLOWFISH +#define POLARSSL_CIPHER_ID_CAMELLIA MBEDTLS_CIPHER_ID_CAMELLIA +#define POLARSSL_CIPHER_ID_DES MBEDTLS_CIPHER_ID_DES +#define POLARSSL_CIPHER_ID_NONE MBEDTLS_CIPHER_ID_NONE +#define POLARSSL_CIPHER_ID_NULL MBEDTLS_CIPHER_ID_NULL +#define POLARSSL_CIPHER_MODE_AEAD MBEDTLS_CIPHER_MODE_AEAD +#define POLARSSL_CIPHER_MODE_STREAM MBEDTLS_CIPHER_MODE_STREAM +#define POLARSSL_CIPHER_MODE_WITH_PADDING MBEDTLS_CIPHER_MODE_WITH_PADDING +#define POLARSSL_CIPHER_NONE MBEDTLS_CIPHER_NONE +#define POLARSSL_CIPHER_NULL MBEDTLS_CIPHER_NULL +#define POLARSSL_CIPHER_VARIABLE_IV_LEN MBEDTLS_CIPHER_VARIABLE_IV_LEN +#define POLARSSL_CIPHER_VARIABLE_KEY_LEN MBEDTLS_CIPHER_VARIABLE_KEY_LEN +#define POLARSSL_CIPHER_WRAP_H MBEDTLS_CIPHER_WRAP_H +#define POLARSSL_CONFIG_H MBEDTLS_CONFIG_H +#define POLARSSL_CTR_DRBG_H MBEDTLS_CTR_DRBG_H +#define POLARSSL_DEBUG_H MBEDTLS_DEBUG_H +#define POLARSSL_DEBUG_LOG_FULL MBEDTLS_DEBUG_LOG_FULL +#define POLARSSL_DEBUG_LOG_RAW MBEDTLS_DEBUG_LOG_RAW +#define POLARSSL_DECRYPT MBEDTLS_DECRYPT +#define POLARSSL_DES_H MBEDTLS_DES_H +#define POLARSSL_DHM_H MBEDTLS_DHM_H +#define POLARSSL_DHM_RFC2409_MODP_1024_G MBEDTLS_DHM_RFC2409_MODP_1024_G +#define POLARSSL_DHM_RFC2409_MODP_1024_P MBEDTLS_DHM_RFC2409_MODP_1024_P +#define POLARSSL_DHM_RFC3526_MODP_2048_G MBEDTLS_DHM_RFC3526_MODP_2048_G +#define POLARSSL_DHM_RFC3526_MODP_2048_P MBEDTLS_DHM_RFC3526_MODP_2048_P +#define POLARSSL_DHM_RFC3526_MODP_3072_G MBEDTLS_DHM_RFC3526_MODP_3072_G +#define POLARSSL_DHM_RFC3526_MODP_3072_P MBEDTLS_DHM_RFC3526_MODP_3072_P +#define POLARSSL_DHM_RFC5114_MODP_1024_G MBEDTLS_DHM_RFC5114_MODP_1024_G +#define POLARSSL_DHM_RFC5114_MODP_1024_P MBEDTLS_DHM_RFC5114_MODP_1024_P +#define POLARSSL_DHM_RFC5114_MODP_2048_G MBEDTLS_DHM_RFC5114_MODP_2048_G +#define POLARSSL_DHM_RFC5114_MODP_2048_P MBEDTLS_DHM_RFC5114_MODP_2048_P +#define POLARSSL_ECDH_H MBEDTLS_ECDH_H +#define POLARSSL_ECDH_OURS MBEDTLS_ECDH_OURS +#define POLARSSL_ECDH_THEIRS MBEDTLS_ECDH_THEIRS +#define POLARSSL_ECDSA_H MBEDTLS_ECDSA_H +#define POLARSSL_ECP_DP_BP256R1 MBEDTLS_ECP_DP_BP256R1 +#define POLARSSL_ECP_DP_BP384R1 MBEDTLS_ECP_DP_BP384R1 +#define POLARSSL_ECP_DP_BP512R1 MBEDTLS_ECP_DP_BP512R1 +#define POLARSSL_ECP_DP_M255 MBEDTLS_ECP_DP_CURVE25519 +#define POLARSSL_ECP_DP_MAX MBEDTLS_ECP_DP_MAX +#define POLARSSL_ECP_DP_NONE MBEDTLS_ECP_DP_NONE +#define POLARSSL_ECP_DP_SECP192K1 MBEDTLS_ECP_DP_SECP192K1 +#define POLARSSL_ECP_DP_SECP192R1 MBEDTLS_ECP_DP_SECP192R1 +#define POLARSSL_ECP_DP_SECP224K1 MBEDTLS_ECP_DP_SECP224K1 +#define POLARSSL_ECP_DP_SECP224R1 MBEDTLS_ECP_DP_SECP224R1 +#define POLARSSL_ECP_DP_SECP256K1 MBEDTLS_ECP_DP_SECP256K1 +#define POLARSSL_ECP_DP_SECP256R1 MBEDTLS_ECP_DP_SECP256R1 +#define POLARSSL_ECP_DP_SECP384R1 MBEDTLS_ECP_DP_SECP384R1 +#define POLARSSL_ECP_DP_SECP521R1 MBEDTLS_ECP_DP_SECP521R1 +#define POLARSSL_ECP_H MBEDTLS_ECP_H +#define POLARSSL_ECP_MAX_BYTES MBEDTLS_ECP_MAX_BYTES +#define POLARSSL_ECP_MAX_PT_LEN MBEDTLS_ECP_MAX_PT_LEN +#define POLARSSL_ECP_PF_COMPRESSED MBEDTLS_ECP_PF_COMPRESSED +#define POLARSSL_ECP_PF_UNCOMPRESSED MBEDTLS_ECP_PF_UNCOMPRESSED +#define POLARSSL_ECP_TLS_NAMED_CURVE MBEDTLS_ECP_TLS_NAMED_CURVE +#define POLARSSL_ENCRYPT MBEDTLS_ENCRYPT +#define POLARSSL_ENTROPY_H MBEDTLS_ENTROPY_H +#define POLARSSL_ENTROPY_POLL_H MBEDTLS_ENTROPY_POLL_H +#define POLARSSL_ENTROPY_SHA256_ACCUMULATOR MBEDTLS_ENTROPY_SHA256_ACCUMULATOR +#define POLARSSL_ENTROPY_SHA512_ACCUMULATOR MBEDTLS_ENTROPY_SHA512_ACCUMULATOR +#define POLARSSL_ERROR_H MBEDTLS_ERROR_H +#define POLARSSL_ERR_AES_INVALID_INPUT_LENGTH MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH +#define POLARSSL_ERR_AES_INVALID_KEY_LENGTH MBEDTLS_ERR_AES_INVALID_KEY_LENGTH +#define POLARSSL_ERR_ASN1_BUF_TOO_SMALL MBEDTLS_ERR_ASN1_BUF_TOO_SMALL +#define POLARSSL_ERR_ASN1_INVALID_DATA MBEDTLS_ERR_ASN1_INVALID_DATA +#define POLARSSL_ERR_ASN1_INVALID_LENGTH MBEDTLS_ERR_ASN1_INVALID_LENGTH +#define POLARSSL_ERR_ASN1_LENGTH_MISMATCH MBEDTLS_ERR_ASN1_LENGTH_MISMATCH +#define POLARSSL_ERR_ASN1_MALLOC_FAILED MBEDTLS_ERR_ASN1_ALLOC_FAILED +#define POLARSSL_ERR_ASN1_OUT_OF_DATA MBEDTLS_ERR_ASN1_OUT_OF_DATA +#define POLARSSL_ERR_ASN1_UNEXPECTED_TAG MBEDTLS_ERR_ASN1_UNEXPECTED_TAG +#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL +#define POLARSSL_ERR_BASE64_INVALID_CHARACTER MBEDTLS_ERR_BASE64_INVALID_CHARACTER +#define POLARSSL_ERR_BLOWFISH_INVALID_INPUT_LENGTH MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH +#define POLARSSL_ERR_BLOWFISH_INVALID_KEY_LENGTH MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH +#define POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH +#define POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH +#define POLARSSL_ERR_CCM_AUTH_FAILED MBEDTLS_ERR_CCM_AUTH_FAILED +#define POLARSSL_ERR_CCM_BAD_INPUT MBEDTLS_ERR_CCM_BAD_INPUT +#define POLARSSL_ERR_CIPHER_ALLOC_FAILED MBEDTLS_ERR_CIPHER_ALLOC_FAILED +#define POLARSSL_ERR_CIPHER_AUTH_FAILED MBEDTLS_ERR_CIPHER_AUTH_FAILED +#define POLARSSL_ERR_CIPHER_BAD_INPUT_DATA MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA +#define POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED +#define POLARSSL_ERR_CIPHER_INVALID_PADDING MBEDTLS_ERR_CIPHER_INVALID_PADDING +#define POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED +#define POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR +#define POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG +#define POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG +#define POLARSSL_ERR_DES_INVALID_INPUT_LENGTH MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH +#define POLARSSL_ERR_DHM_BAD_INPUT_DATA MBEDTLS_ERR_DHM_BAD_INPUT_DATA +#define POLARSSL_ERR_DHM_CALC_SECRET_FAILED MBEDTLS_ERR_DHM_CALC_SECRET_FAILED +#define POLARSSL_ERR_DHM_FILE_IO_ERROR MBEDTLS_ERR_DHM_FILE_IO_ERROR +#define POLARSSL_ERR_DHM_INVALID_FORMAT MBEDTLS_ERR_DHM_INVALID_FORMAT +#define POLARSSL_ERR_DHM_MAKE_PARAMS_FAILED MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED +#define POLARSSL_ERR_DHM_MAKE_PUBLIC_FAILED MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED +#define POLARSSL_ERR_DHM_MALLOC_FAILED MBEDTLS_ERR_DHM_ALLOC_FAILED +#define POLARSSL_ERR_DHM_READ_PARAMS_FAILED MBEDTLS_ERR_DHM_READ_PARAMS_FAILED +#define POLARSSL_ERR_DHM_READ_PUBLIC_FAILED MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED +#define POLARSSL_ERR_ECP_BAD_INPUT_DATA MBEDTLS_ERR_ECP_BAD_INPUT_DATA +#define POLARSSL_ERR_ECP_BUFFER_TOO_SMALL MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL +#define POLARSSL_ERR_ECP_FEATURE_UNAVAILABLE MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_ECP_INVALID_KEY MBEDTLS_ERR_ECP_INVALID_KEY +#define POLARSSL_ERR_ECP_MALLOC_FAILED MBEDTLS_ERR_ECP_ALLOC_FAILED +#define POLARSSL_ERR_ECP_RANDOM_FAILED MBEDTLS_ERR_ECP_RANDOM_FAILED +#define POLARSSL_ERR_ECP_SIG_LEN_MISMATCH MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH +#define POLARSSL_ERR_ECP_VERIFY_FAILED MBEDTLS_ERR_ECP_VERIFY_FAILED +#define POLARSSL_ERR_ENTROPY_FILE_IO_ERROR MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR +#define POLARSSL_ERR_ENTROPY_MAX_SOURCES MBEDTLS_ERR_ENTROPY_MAX_SOURCES +#define POLARSSL_ERR_ENTROPY_NO_SOURCES_DEFINED MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED +#define POLARSSL_ERR_ENTROPY_SOURCE_FAILED MBEDTLS_ERR_ENTROPY_SOURCE_FAILED +#define POLARSSL_ERR_GCM_AUTH_FAILED MBEDTLS_ERR_GCM_AUTH_FAILED +#define POLARSSL_ERR_GCM_BAD_INPUT MBEDTLS_ERR_GCM_BAD_INPUT +#define POLARSSL_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED +#define POLARSSL_ERR_HMAC_DRBG_FILE_IO_ERROR MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR +#define POLARSSL_ERR_HMAC_DRBG_INPUT_TOO_BIG MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG +#define POLARSSL_ERR_HMAC_DRBG_REQUEST_TOO_BIG MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG +#define POLARSSL_ERR_MD2_FILE_IO_ERROR MBEDTLS_ERR_MD2_FILE_IO_ERROR +#define POLARSSL_ERR_MD4_FILE_IO_ERROR MBEDTLS_ERR_MD4_FILE_IO_ERROR +#define POLARSSL_ERR_MD5_FILE_IO_ERROR MBEDTLS_ERR_MD5_FILE_IO_ERROR +#define POLARSSL_ERR_MD_ALLOC_FAILED MBEDTLS_ERR_MD_ALLOC_FAILED +#define POLARSSL_ERR_MD_BAD_INPUT_DATA MBEDTLS_ERR_MD_BAD_INPUT_DATA +#define POLARSSL_ERR_MD_FEATURE_UNAVAILABLE MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_MD_FILE_IO_ERROR MBEDTLS_ERR_MD_FILE_IO_ERROR +#define POLARSSL_ERR_MPI_BAD_INPUT_DATA MBEDTLS_ERR_MPI_BAD_INPUT_DATA +#define POLARSSL_ERR_MPI_BUFFER_TOO_SMALL MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL +#define POLARSSL_ERR_MPI_DIVISION_BY_ZERO MBEDTLS_ERR_MPI_DIVISION_BY_ZERO +#define POLARSSL_ERR_MPI_FILE_IO_ERROR MBEDTLS_ERR_MPI_FILE_IO_ERROR +#define POLARSSL_ERR_MPI_INVALID_CHARACTER MBEDTLS_ERR_MPI_INVALID_CHARACTER +#define POLARSSL_ERR_MPI_MALLOC_FAILED MBEDTLS_ERR_MPI_ALLOC_FAILED +#define POLARSSL_ERR_MPI_NEGATIVE_VALUE MBEDTLS_ERR_MPI_NEGATIVE_VALUE +#define POLARSSL_ERR_MPI_NOT_ACCEPTABLE MBEDTLS_ERR_MPI_NOT_ACCEPTABLE +#define POLARSSL_ERR_NET_ACCEPT_FAILED MBEDTLS_ERR_NET_ACCEPT_FAILED +#define POLARSSL_ERR_NET_BIND_FAILED MBEDTLS_ERR_NET_BIND_FAILED +#define POLARSSL_ERR_NET_CONNECT_FAILED MBEDTLS_ERR_NET_CONNECT_FAILED +#define POLARSSL_ERR_NET_CONN_RESET MBEDTLS_ERR_NET_CONN_RESET +#define POLARSSL_ERR_NET_LISTEN_FAILED MBEDTLS_ERR_NET_LISTEN_FAILED +#define POLARSSL_ERR_NET_RECV_FAILED MBEDTLS_ERR_NET_RECV_FAILED +#define POLARSSL_ERR_NET_SEND_FAILED MBEDTLS_ERR_NET_SEND_FAILED +#define POLARSSL_ERR_NET_SOCKET_FAILED MBEDTLS_ERR_NET_SOCKET_FAILED +#define POLARSSL_ERR_NET_TIMEOUT MBEDTLS_ERR_SSL_TIMEOUT +#define POLARSSL_ERR_NET_UNKNOWN_HOST MBEDTLS_ERR_NET_UNKNOWN_HOST +#define POLARSSL_ERR_NET_WANT_READ MBEDTLS_ERR_SSL_WANT_READ +#define POLARSSL_ERR_NET_WANT_WRITE MBEDTLS_ERR_SSL_WANT_WRITE +#define POLARSSL_ERR_OID_BUF_TOO_SMALL MBEDTLS_ERR_OID_BUF_TOO_SMALL +#define POLARSSL_ERR_OID_NOT_FOUND MBEDTLS_ERR_OID_NOT_FOUND +#define POLARSSL_ERR_PADLOCK_DATA_MISALIGNED MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED +#define POLARSSL_ERR_PBKDF2_BAD_INPUT_DATA MBEDTLS_ERR_PBKDF2_BAD_INPUT_DATA +#define POLARSSL_ERR_PEM_BAD_INPUT_DATA MBEDTLS_ERR_PEM_BAD_INPUT_DATA +#define POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_PEM_INVALID_DATA MBEDTLS_ERR_PEM_INVALID_DATA +#define POLARSSL_ERR_PEM_INVALID_ENC_IV MBEDTLS_ERR_PEM_INVALID_ENC_IV +#define POLARSSL_ERR_PEM_MALLOC_FAILED MBEDTLS_ERR_PEM_ALLOC_FAILED +#define POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT +#define POLARSSL_ERR_PEM_PASSWORD_MISMATCH MBEDTLS_ERR_PEM_PASSWORD_MISMATCH +#define POLARSSL_ERR_PEM_PASSWORD_REQUIRED MBEDTLS_ERR_PEM_PASSWORD_REQUIRED +#define POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG +#define POLARSSL_ERR_PKCS12_BAD_INPUT_DATA MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA +#define POLARSSL_ERR_PKCS12_FEATURE_UNAVAILABLE MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_PKCS12_PASSWORD_MISMATCH MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH +#define POLARSSL_ERR_PKCS12_PBE_INVALID_FORMAT MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT +#define POLARSSL_ERR_PKCS5_BAD_INPUT_DATA MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA +#define POLARSSL_ERR_PKCS5_FEATURE_UNAVAILABLE MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_PKCS5_INVALID_FORMAT MBEDTLS_ERR_PKCS5_INVALID_FORMAT +#define POLARSSL_ERR_PKCS5_PASSWORD_MISMATCH MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH +#define POLARSSL_ERR_PK_BAD_INPUT_DATA MBEDTLS_ERR_PK_BAD_INPUT_DATA +#define POLARSSL_ERR_PK_FEATURE_UNAVAILABLE MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_PK_FILE_IO_ERROR MBEDTLS_ERR_PK_FILE_IO_ERROR +#define POLARSSL_ERR_PK_INVALID_ALG MBEDTLS_ERR_PK_INVALID_ALG +#define POLARSSL_ERR_PK_INVALID_PUBKEY MBEDTLS_ERR_PK_INVALID_PUBKEY +#define POLARSSL_ERR_PK_KEY_INVALID_FORMAT MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +#define POLARSSL_ERR_PK_KEY_INVALID_VERSION MBEDTLS_ERR_PK_KEY_INVALID_VERSION +#define POLARSSL_ERR_PK_MALLOC_FAILED MBEDTLS_ERR_PK_ALLOC_FAILED +#define POLARSSL_ERR_PK_PASSWORD_MISMATCH MBEDTLS_ERR_PK_PASSWORD_MISMATCH +#define POLARSSL_ERR_PK_PASSWORD_REQUIRED MBEDTLS_ERR_PK_PASSWORD_REQUIRED +#define POLARSSL_ERR_PK_SIG_LEN_MISMATCH MBEDTLS_ERR_PK_SIG_LEN_MISMATCH +#define POLARSSL_ERR_PK_TYPE_MISMATCH MBEDTLS_ERR_PK_TYPE_MISMATCH +#define POLARSSL_ERR_PK_UNKNOWN_NAMED_CURVE MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE +#define POLARSSL_ERR_PK_UNKNOWN_PK_ALG MBEDTLS_ERR_PK_UNKNOWN_PK_ALG +#define POLARSSL_ERR_RIPEMD160_FILE_IO_ERROR MBEDTLS_ERR_RIPEMD160_FILE_IO_ERROR +#define POLARSSL_ERR_RSA_BAD_INPUT_DATA MBEDTLS_ERR_RSA_BAD_INPUT_DATA +#define POLARSSL_ERR_RSA_INVALID_PADDING MBEDTLS_ERR_RSA_INVALID_PADDING +#define POLARSSL_ERR_RSA_KEY_CHECK_FAILED MBEDTLS_ERR_RSA_KEY_CHECK_FAILED +#define POLARSSL_ERR_RSA_KEY_GEN_FAILED MBEDTLS_ERR_RSA_KEY_GEN_FAILED +#define POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE +#define POLARSSL_ERR_RSA_PRIVATE_FAILED MBEDTLS_ERR_RSA_PRIVATE_FAILED +#define POLARSSL_ERR_RSA_PUBLIC_FAILED MBEDTLS_ERR_RSA_PUBLIC_FAILED +#define POLARSSL_ERR_RSA_RNG_FAILED MBEDTLS_ERR_RSA_RNG_FAILED +#define POLARSSL_ERR_RSA_VERIFY_FAILED MBEDTLS_ERR_RSA_VERIFY_FAILED +#define POLARSSL_ERR_SHA1_FILE_IO_ERROR MBEDTLS_ERR_SHA1_FILE_IO_ERROR +#define POLARSSL_ERR_SHA256_FILE_IO_ERROR MBEDTLS_ERR_SHA256_FILE_IO_ERROR +#define POLARSSL_ERR_SHA512_FILE_IO_ERROR MBEDTLS_ERR_SHA512_FILE_IO_ERROR +#define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE +#define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST +#define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY +#define POLARSSL_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC +#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO +#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE +#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS +#define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP +#define POLARSSL_ERR_SSL_BAD_HS_FINISHED MBEDTLS_ERR_SSL_BAD_HS_FINISHED +#define POLARSSL_ERR_SSL_BAD_HS_NEW_SESSION_TICKET MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET +#define POLARSSL_ERR_SSL_BAD_HS_PROTOCOL_VERSION MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION +#define POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO +#define POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO_DONE MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE +#define POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE +#define POLARSSL_ERR_SSL_BAD_INPUT_DATA MBEDTLS_ERR_SSL_BAD_INPUT_DATA +#define POLARSSL_ERR_SSL_BUFFER_TOO_SMALL MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL +#define POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED +#define POLARSSL_ERR_SSL_CERTIFICATE_REQUIRED MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED +#define POLARSSL_ERR_SSL_CERTIFICATE_TOO_LARGE MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE +#define POLARSSL_ERR_SSL_COMPRESSION_FAILED MBEDTLS_ERR_SSL_COMPRESSION_FAILED +#define POLARSSL_ERR_SSL_CONN_EOF MBEDTLS_ERR_SSL_CONN_EOF +#define POLARSSL_ERR_SSL_COUNTER_WRAPPING MBEDTLS_ERR_SSL_COUNTER_WRAPPING +#define POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE +#define POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_SSL_HELLO_VERIFY_REQUIRED MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED +#define POLARSSL_ERR_SSL_HW_ACCEL_FAILED MBEDTLS_ERR_SSL_HW_ACCEL_FAILED +#define POLARSSL_ERR_SSL_HW_ACCEL_FALLTHROUGH MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH +#define POLARSSL_ERR_SSL_INTERNAL_ERROR MBEDTLS_ERR_SSL_INTERNAL_ERROR +#define POLARSSL_ERR_SSL_INVALID_MAC MBEDTLS_ERR_SSL_INVALID_MAC +#define POLARSSL_ERR_SSL_INVALID_RECORD MBEDTLS_ERR_SSL_INVALID_RECORD +#define POLARSSL_ERR_SSL_MALLOC_FAILED MBEDTLS_ERR_SSL_ALLOC_FAILED +#define POLARSSL_ERR_SSL_NO_CIPHER_CHOSEN MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN +#define POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE +#define POLARSSL_ERR_SSL_NO_RNG MBEDTLS_ERR_SSL_NO_RNG +#define POLARSSL_ERR_SSL_NO_USABLE_CIPHERSUITE MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE +#define POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY +#define POLARSSL_ERR_SSL_PEER_VERIFY_FAILED MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED +#define POLARSSL_ERR_SSL_PK_TYPE_MISMATCH MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH +#define POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED +#define POLARSSL_ERR_SSL_SESSION_TICKET_EXPIRED MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED +#define POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE +#define POLARSSL_ERR_SSL_UNKNOWN_CIPHER MBEDTLS_ERR_SSL_UNKNOWN_CIPHER +#define POLARSSL_ERR_SSL_UNKNOWN_IDENTITY MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY +#define POLARSSL_ERR_SSL_WAITING_SERVER_HELLO_RENEGO MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO +#define POLARSSL_ERR_THREADING_BAD_INPUT_DATA MBEDTLS_ERR_THREADING_BAD_INPUT_DATA +#define POLARSSL_ERR_THREADING_FEATURE_UNAVAILABLE MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_THREADING_MUTEX_ERROR MBEDTLS_ERR_THREADING_MUTEX_ERROR +#define POLARSSL_ERR_X509_BAD_INPUT_DATA MBEDTLS_ERR_X509_BAD_INPUT_DATA +#define POLARSSL_ERR_X509_CERT_UNKNOWN_FORMAT MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT +#define POLARSSL_ERR_X509_CERT_VERIFY_FAILED MBEDTLS_ERR_X509_CERT_VERIFY_FAILED +#define POLARSSL_ERR_X509_FEATURE_UNAVAILABLE MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE +#define POLARSSL_ERR_X509_FILE_IO_ERROR MBEDTLS_ERR_X509_FILE_IO_ERROR +#define POLARSSL_ERR_X509_INVALID_ALG MBEDTLS_ERR_X509_INVALID_ALG +#define POLARSSL_ERR_X509_INVALID_DATE MBEDTLS_ERR_X509_INVALID_DATE +#define POLARSSL_ERR_X509_INVALID_EXTENSIONS MBEDTLS_ERR_X509_INVALID_EXTENSIONS +#define POLARSSL_ERR_X509_INVALID_FORMAT MBEDTLS_ERR_X509_INVALID_FORMAT +#define POLARSSL_ERR_X509_INVALID_NAME MBEDTLS_ERR_X509_INVALID_NAME +#define POLARSSL_ERR_X509_INVALID_SERIAL MBEDTLS_ERR_X509_INVALID_SERIAL +#define POLARSSL_ERR_X509_INVALID_SIGNATURE MBEDTLS_ERR_X509_INVALID_SIGNATURE +#define POLARSSL_ERR_X509_INVALID_VERSION MBEDTLS_ERR_X509_INVALID_VERSION +#define POLARSSL_ERR_X509_MALLOC_FAILED MBEDTLS_ERR_X509_ALLOC_FAILED +#define POLARSSL_ERR_X509_SIG_MISMATCH MBEDTLS_ERR_X509_SIG_MISMATCH +#define POLARSSL_ERR_X509_UNKNOWN_OID MBEDTLS_ERR_X509_UNKNOWN_OID +#define POLARSSL_ERR_X509_UNKNOWN_SIG_ALG MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG +#define POLARSSL_ERR_X509_UNKNOWN_VERSION MBEDTLS_ERR_X509_UNKNOWN_VERSION +#define POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH +#define POLARSSL_GCM_H MBEDTLS_GCM_H +#define POLARSSL_HAVEGE_H MBEDTLS_HAVEGE_H +#define POLARSSL_HAVE_INT32 MBEDTLS_HAVE_INT32 +#define POLARSSL_HAVE_INT64 MBEDTLS_HAVE_INT64 +#define POLARSSL_HAVE_UDBL MBEDTLS_HAVE_UDBL +#define POLARSSL_HAVE_X86 MBEDTLS_HAVE_X86 +#define POLARSSL_HAVE_X86_64 MBEDTLS_HAVE_X86_64 +#define POLARSSL_HMAC_DRBG_H MBEDTLS_HMAC_DRBG_H +#define POLARSSL_HMAC_DRBG_PR_OFF MBEDTLS_HMAC_DRBG_PR_OFF +#define POLARSSL_HMAC_DRBG_PR_ON MBEDTLS_HMAC_DRBG_PR_ON +#define POLARSSL_KEY_EXCHANGE_DHE_PSK MBEDTLS_KEY_EXCHANGE_DHE_PSK +#define POLARSSL_KEY_EXCHANGE_DHE_RSA MBEDTLS_KEY_EXCHANGE_DHE_RSA +#define POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA +#define POLARSSL_KEY_EXCHANGE_ECDHE_PSK MBEDTLS_KEY_EXCHANGE_ECDHE_PSK +#define POLARSSL_KEY_EXCHANGE_ECDHE_RSA MBEDTLS_KEY_EXCHANGE_ECDHE_RSA +#define POLARSSL_KEY_EXCHANGE_ECDH_ECDSA MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA +#define POLARSSL_KEY_EXCHANGE_ECDH_RSA MBEDTLS_KEY_EXCHANGE_ECDH_RSA +#define POLARSSL_KEY_EXCHANGE_NONE MBEDTLS_KEY_EXCHANGE_NONE +#define POLARSSL_KEY_EXCHANGE_PSK MBEDTLS_KEY_EXCHANGE_PSK +#define POLARSSL_KEY_EXCHANGE_RSA MBEDTLS_KEY_EXCHANGE_RSA +#define POLARSSL_KEY_EXCHANGE_RSA_PSK MBEDTLS_KEY_EXCHANGE_RSA_PSK +#define POLARSSL_KEY_EXCHANGE__SOME__ECDHE_ENABLED MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED +#define POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED +#define POLARSSL_KEY_EXCHANGE__WITH_CERT__ENABLED MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED +#define POLARSSL_KEY_LENGTH_DES MBEDTLS_KEY_LENGTH_DES +#define POLARSSL_KEY_LENGTH_DES_EDE MBEDTLS_KEY_LENGTH_DES_EDE +#define POLARSSL_KEY_LENGTH_DES_EDE3 MBEDTLS_KEY_LENGTH_DES_EDE3 +#define POLARSSL_KEY_LENGTH_NONE MBEDTLS_KEY_LENGTH_NONE +#define POLARSSL_MAX_BLOCK_LENGTH MBEDTLS_MAX_BLOCK_LENGTH +#define POLARSSL_MAX_IV_LENGTH MBEDTLS_MAX_IV_LENGTH +#define POLARSSL_MD2_H MBEDTLS_MD2_H +#define POLARSSL_MD4_H MBEDTLS_MD4_H +#define POLARSSL_MD5_H MBEDTLS_MD5_H +#define POLARSSL_MD_H MBEDTLS_MD_H +#define POLARSSL_MD_MAX_SIZE MBEDTLS_MD_MAX_SIZE +#define POLARSSL_MD_MD2 MBEDTLS_MD_MD2 +#define POLARSSL_MD_MD4 MBEDTLS_MD_MD4 +#define POLARSSL_MD_MD5 MBEDTLS_MD_MD5 +#define POLARSSL_MD_NONE MBEDTLS_MD_NONE +#define POLARSSL_MD_RIPEMD160 MBEDTLS_MD_RIPEMD160 +#define POLARSSL_MD_SHA1 MBEDTLS_MD_SHA1 +#define POLARSSL_MD_SHA224 MBEDTLS_MD_SHA224 +#define POLARSSL_MD_SHA256 MBEDTLS_MD_SHA256 +#define POLARSSL_MD_SHA384 MBEDTLS_MD_SHA384 +#define POLARSSL_MD_SHA512 MBEDTLS_MD_SHA512 +#define POLARSSL_MD_WRAP_H MBEDTLS_MD_WRAP_H +#define POLARSSL_MEMORY_BUFFER_ALLOC_H MBEDTLS_MEMORY_BUFFER_ALLOC_H +#define POLARSSL_MEMORY_H MBEDTLS_MEMORY_H +#define POLARSSL_MODE_CBC MBEDTLS_MODE_CBC +#define POLARSSL_MODE_CCM MBEDTLS_MODE_CCM +#define POLARSSL_MODE_CFB MBEDTLS_MODE_CFB +#define POLARSSL_MODE_CTR MBEDTLS_MODE_CTR +#define POLARSSL_MODE_ECB MBEDTLS_MODE_ECB +#define POLARSSL_MODE_GCM MBEDTLS_MODE_GCM +#define POLARSSL_MODE_NONE MBEDTLS_MODE_NONE +#define POLARSSL_MODE_OFB MBEDTLS_MODE_OFB +#define POLARSSL_MODE_STREAM MBEDTLS_MODE_STREAM +#define POLARSSL_MPI_MAX_BITS MBEDTLS_MPI_MAX_BITS +#define POLARSSL_MPI_MAX_BITS_SCALE100 MBEDTLS_MPI_MAX_BITS_SCALE100 +#define POLARSSL_MPI_MAX_LIMBS MBEDTLS_MPI_MAX_LIMBS +#define POLARSSL_MPI_RW_BUFFER_SIZE MBEDTLS_MPI_RW_BUFFER_SIZE +#define POLARSSL_NET_H MBEDTLS_NET_H +#define POLARSSL_NET_LISTEN_BACKLOG MBEDTLS_NET_LISTEN_BACKLOG +#define POLARSSL_OID_H MBEDTLS_OID_H +#define POLARSSL_OPERATION_NONE MBEDTLS_OPERATION_NONE +#define POLARSSL_PADDING_NONE MBEDTLS_PADDING_NONE +#define POLARSSL_PADDING_ONE_AND_ZEROS MBEDTLS_PADDING_ONE_AND_ZEROS +#define POLARSSL_PADDING_PKCS7 MBEDTLS_PADDING_PKCS7 +#define POLARSSL_PADDING_ZEROS MBEDTLS_PADDING_ZEROS +#define POLARSSL_PADDING_ZEROS_AND_LEN MBEDTLS_PADDING_ZEROS_AND_LEN +#define POLARSSL_PADLOCK_H MBEDTLS_PADLOCK_H +#define POLARSSL_PBKDF2_H MBEDTLS_PBKDF2_H +#define POLARSSL_PEM_H MBEDTLS_PEM_H +#define POLARSSL_PKCS11_H MBEDTLS_PKCS11_H +#define POLARSSL_PKCS12_H MBEDTLS_PKCS12_H +#define POLARSSL_PKCS5_H MBEDTLS_PKCS5_H +#define POLARSSL_PK_DEBUG_ECP MBEDTLS_PK_DEBUG_ECP +#define POLARSSL_PK_DEBUG_MAX_ITEMS MBEDTLS_PK_DEBUG_MAX_ITEMS +#define POLARSSL_PK_DEBUG_MPI MBEDTLS_PK_DEBUG_MPI +#define POLARSSL_PK_DEBUG_NONE MBEDTLS_PK_DEBUG_NONE +#define POLARSSL_PK_ECDSA MBEDTLS_PK_ECDSA +#define POLARSSL_PK_ECKEY MBEDTLS_PK_ECKEY +#define POLARSSL_PK_ECKEY_DH MBEDTLS_PK_ECKEY_DH +#define POLARSSL_PK_H MBEDTLS_PK_H +#define POLARSSL_PK_NONE MBEDTLS_PK_NONE +#define POLARSSL_PK_RSA MBEDTLS_PK_RSA +#define POLARSSL_PK_RSASSA_PSS MBEDTLS_PK_RSASSA_PSS +#define POLARSSL_PK_RSA_ALT MBEDTLS_PK_RSA_ALT +#define POLARSSL_PK_WRAP_H MBEDTLS_PK_WRAP_H +#define POLARSSL_PLATFORM_H MBEDTLS_PLATFORM_H +#define POLARSSL_PREMASTER_SIZE MBEDTLS_PREMASTER_SIZE +#define POLARSSL_RIPEMD160_H MBEDTLS_RIPEMD160_H +#define POLARSSL_RSA_H MBEDTLS_RSA_H +#define POLARSSL_SHA1_H MBEDTLS_SHA1_H +#define POLARSSL_SHA256_H MBEDTLS_SHA256_H +#define POLARSSL_SHA512_H MBEDTLS_SHA512_H +#define POLARSSL_SSL_CACHE_H MBEDTLS_SSL_CACHE_H +#define POLARSSL_SSL_CIPHERSUITES_H MBEDTLS_SSL_CIPHERSUITES_H +#define POLARSSL_SSL_COOKIE_H MBEDTLS_SSL_COOKIE_H +#define POLARSSL_SSL_H MBEDTLS_SSL_H +#define POLARSSL_THREADING_H MBEDTLS_THREADING_H +#define POLARSSL_THREADING_IMPL MBEDTLS_THREADING_IMPL +#define POLARSSL_TIMING_H MBEDTLS_TIMING_H +#define POLARSSL_VERSION_H MBEDTLS_VERSION_H +#define POLARSSL_VERSION_MAJOR MBEDTLS_VERSION_MAJOR +#define POLARSSL_VERSION_MINOR MBEDTLS_VERSION_MINOR +#define POLARSSL_VERSION_NUMBER MBEDTLS_VERSION_NUMBER +#define POLARSSL_VERSION_PATCH MBEDTLS_VERSION_PATCH +#define POLARSSL_VERSION_STRING MBEDTLS_VERSION_STRING +#define POLARSSL_VERSION_STRING_FULL MBEDTLS_VERSION_STRING_FULL +#define POLARSSL_X509_CRL_H MBEDTLS_X509_CRL_H +#define POLARSSL_X509_CRT_H MBEDTLS_X509_CRT_H +#define POLARSSL_X509_CSR_H MBEDTLS_X509_CSR_H +#define POLARSSL_X509_H MBEDTLS_X509_H +#define POLARSSL_XTEA_H MBEDTLS_XTEA_H +#define RSA_CRYPT MBEDTLS_RSA_CRYPT +#define RSA_PKCS_V15 MBEDTLS_RSA_PKCS_V15 +#define RSA_PKCS_V21 MBEDTLS_RSA_PKCS_V21 +#define RSA_PRIVATE MBEDTLS_RSA_PRIVATE +#define RSA_PUBLIC MBEDTLS_RSA_PUBLIC +#define RSA_SALT_LEN_ANY MBEDTLS_RSA_SALT_LEN_ANY +#define RSA_SIGN MBEDTLS_RSA_SIGN +#define SSL_ALERT_LEVEL_FATAL MBEDTLS_SSL_ALERT_LEVEL_FATAL +#define SSL_ALERT_LEVEL_WARNING MBEDTLS_SSL_ALERT_LEVEL_WARNING +#define SSL_ALERT_MSG_ACCESS_DENIED MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED +#define SSL_ALERT_MSG_BAD_CERT MBEDTLS_SSL_ALERT_MSG_BAD_CERT +#define SSL_ALERT_MSG_BAD_RECORD_MAC MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC +#define SSL_ALERT_MSG_CERT_EXPIRED MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED +#define SSL_ALERT_MSG_CERT_REVOKED MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED +#define SSL_ALERT_MSG_CERT_UNKNOWN MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN +#define SSL_ALERT_MSG_CLOSE_NOTIFY MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY +#define SSL_ALERT_MSG_DECODE_ERROR MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR +#define SSL_ALERT_MSG_DECOMPRESSION_FAILURE MBEDTLS_SSL_ALERT_MSG_DECOMPRESSION_FAILURE +#define SSL_ALERT_MSG_DECRYPTION_FAILED MBEDTLS_SSL_ALERT_MSG_DECRYPTION_FAILED +#define SSL_ALERT_MSG_DECRYPT_ERROR MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR +#define SSL_ALERT_MSG_EXPORT_RESTRICTION MBEDTLS_SSL_ALERT_MSG_EXPORT_RESTRICTION +#define SSL_ALERT_MSG_HANDSHAKE_FAILURE MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE +#define SSL_ALERT_MSG_ILLEGAL_PARAMETER MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER +#define SSL_ALERT_MSG_INAPROPRIATE_FALLBACK MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK +#define SSL_ALERT_MSG_INSUFFICIENT_SECURITY MBEDTLS_SSL_ALERT_MSG_INSUFFICIENT_SECURITY +#define SSL_ALERT_MSG_INTERNAL_ERROR MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR +#define SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL +#define SSL_ALERT_MSG_NO_CERT MBEDTLS_SSL_ALERT_MSG_NO_CERT +#define SSL_ALERT_MSG_NO_RENEGOTIATION MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION +#define SSL_ALERT_MSG_PROTOCOL_VERSION MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION +#define SSL_ALERT_MSG_RECORD_OVERFLOW MBEDTLS_SSL_ALERT_MSG_RECORD_OVERFLOW +#define SSL_ALERT_MSG_UNEXPECTED_MESSAGE MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE +#define SSL_ALERT_MSG_UNKNOWN_CA MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA +#define SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY +#define SSL_ALERT_MSG_UNRECOGNIZED_NAME MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME +#define SSL_ALERT_MSG_UNSUPPORTED_CERT MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT +#define SSL_ALERT_MSG_UNSUPPORTED_EXT MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT +#define SSL_ALERT_MSG_USER_CANCELED MBEDTLS_SSL_ALERT_MSG_USER_CANCELED +#define SSL_ANTI_REPLAY_DISABLED MBEDTLS_SSL_ANTI_REPLAY_DISABLED +#define SSL_ANTI_REPLAY_ENABLED MBEDTLS_SSL_ANTI_REPLAY_ENABLED +#define SSL_ARC4_DISABLED MBEDTLS_SSL_ARC4_DISABLED +#define SSL_ARC4_ENABLED MBEDTLS_SSL_ARC4_ENABLED +#define SSL_BUFFER_LEN MBEDTLS_SSL_BUFFER_LEN +#define SSL_CACHE_DEFAULT_MAX_ENTRIES MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES +#define SSL_CACHE_DEFAULT_TIMEOUT MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT +#define SSL_CBC_RECORD_SPLITTING_DISABLED MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED +#define SSL_CBC_RECORD_SPLITTING_ENABLED MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED +#define SSL_CERTIFICATE_REQUEST MBEDTLS_SSL_CERTIFICATE_REQUEST +#define SSL_CERTIFICATE_VERIFY MBEDTLS_SSL_CERTIFICATE_VERIFY +#define SSL_CERT_TYPE_ECDSA_SIGN MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN +#define SSL_CERT_TYPE_RSA_SIGN MBEDTLS_SSL_CERT_TYPE_RSA_SIGN +#define SSL_CHANNEL_INBOUND MBEDTLS_SSL_CHANNEL_INBOUND +#define SSL_CHANNEL_OUTBOUND MBEDTLS_SSL_CHANNEL_OUTBOUND +#define SSL_CIPHERSUITES MBEDTLS_SSL_CIPHERSUITES +#define SSL_CLIENT_CERTIFICATE MBEDTLS_SSL_CLIENT_CERTIFICATE +#define SSL_CLIENT_CHANGE_CIPHER_SPEC MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC +#define SSL_CLIENT_FINISHED MBEDTLS_SSL_CLIENT_FINISHED +#define SSL_CLIENT_HELLO MBEDTLS_SSL_CLIENT_HELLO +#define SSL_CLIENT_KEY_EXCHANGE MBEDTLS_SSL_CLIENT_KEY_EXCHANGE +#define SSL_COMPRESSION_ADD MBEDTLS_SSL_COMPRESSION_ADD +#define SSL_COMPRESS_DEFLATE MBEDTLS_SSL_COMPRESS_DEFLATE +#define SSL_COMPRESS_NULL MBEDTLS_SSL_COMPRESS_NULL +#define SSL_DEBUG_BUF MBEDTLS_SSL_DEBUG_BUF +#define SSL_DEBUG_CRT MBEDTLS_SSL_DEBUG_CRT +#define SSL_DEBUG_ECP MBEDTLS_SSL_DEBUG_ECP +#define SSL_DEBUG_MPI MBEDTLS_SSL_DEBUG_MPI +#define SSL_DEBUG_MSG MBEDTLS_SSL_DEBUG_MSG +#define SSL_DEBUG_RET MBEDTLS_SSL_DEBUG_RET +#define SSL_DEFAULT_TICKET_LIFETIME MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME +#define SSL_DTLS_TIMEOUT_DFL_MAX MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX +#define SSL_DTLS_TIMEOUT_DFL_MIN MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN +#define SSL_EMPTY_RENEGOTIATION_INFO MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO +#define SSL_ETM_DISABLED MBEDTLS_SSL_ETM_DISABLED +#define SSL_ETM_ENABLED MBEDTLS_SSL_ETM_ENABLED +#define SSL_EXTENDED_MS_DISABLED MBEDTLS_SSL_EXTENDED_MS_DISABLED +#define SSL_EXTENDED_MS_ENABLED MBEDTLS_SSL_EXTENDED_MS_ENABLED +#define SSL_FALLBACK_SCSV MBEDTLS_SSL_FALLBACK_SCSV +#define SSL_FLUSH_BUFFERS MBEDTLS_SSL_FLUSH_BUFFERS +#define SSL_HANDSHAKE_OVER MBEDTLS_SSL_HANDSHAKE_OVER +#define SSL_HANDSHAKE_WRAPUP MBEDTLS_SSL_HANDSHAKE_WRAPUP +#define SSL_HASH_MD5 MBEDTLS_SSL_HASH_MD5 +#define SSL_HASH_NONE MBEDTLS_SSL_HASH_NONE +#define SSL_HASH_SHA1 MBEDTLS_SSL_HASH_SHA1 +#define SSL_HASH_SHA224 MBEDTLS_SSL_HASH_SHA224 +#define SSL_HASH_SHA256 MBEDTLS_SSL_HASH_SHA256 +#define SSL_HASH_SHA384 MBEDTLS_SSL_HASH_SHA384 +#define SSL_HASH_SHA512 MBEDTLS_SSL_HASH_SHA512 +#define SSL_HELLO_REQUEST MBEDTLS_SSL_HELLO_REQUEST +#define SSL_HS_CERTIFICATE MBEDTLS_SSL_HS_CERTIFICATE +#define SSL_HS_CERTIFICATE_REQUEST MBEDTLS_SSL_HS_CERTIFICATE_REQUEST +#define SSL_HS_CERTIFICATE_VERIFY MBEDTLS_SSL_HS_CERTIFICATE_VERIFY +#define SSL_HS_CLIENT_HELLO MBEDTLS_SSL_HS_CLIENT_HELLO +#define SSL_HS_CLIENT_KEY_EXCHANGE MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE +#define SSL_HS_FINISHED MBEDTLS_SSL_HS_FINISHED +#define SSL_HS_HELLO_REQUEST MBEDTLS_SSL_HS_HELLO_REQUEST +#define SSL_HS_HELLO_VERIFY_REQUEST MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST +#define SSL_HS_NEW_SESSION_TICKET MBEDTLS_SSL_HS_NEW_SESSION_TICKET +#define SSL_HS_SERVER_HELLO MBEDTLS_SSL_HS_SERVER_HELLO +#define SSL_HS_SERVER_HELLO_DONE MBEDTLS_SSL_HS_SERVER_HELLO_DONE +#define SSL_HS_SERVER_KEY_EXCHANGE MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE +#define SSL_INITIAL_HANDSHAKE MBEDTLS_SSL_INITIAL_HANDSHAKE +#define SSL_IS_CLIENT MBEDTLS_SSL_IS_CLIENT +#define SSL_IS_FALLBACK MBEDTLS_SSL_IS_FALLBACK +#define SSL_IS_NOT_FALLBACK MBEDTLS_SSL_IS_NOT_FALLBACK +#define SSL_IS_SERVER MBEDTLS_SSL_IS_SERVER +#define SSL_LEGACY_ALLOW_RENEGOTIATION MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION +#define SSL_LEGACY_BREAK_HANDSHAKE MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE +#define SSL_LEGACY_NO_RENEGOTIATION MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION +#define SSL_LEGACY_RENEGOTIATION MBEDTLS_SSL_LEGACY_RENEGOTIATION +#define SSL_MAC_ADD MBEDTLS_SSL_MAC_ADD +#define SSL_MAJOR_VERSION_3 MBEDTLS_SSL_MAJOR_VERSION_3 +#define SSL_MAX_CONTENT_LEN MBEDTLS_SSL_MAX_CONTENT_LEN +#define SSL_MAX_FRAG_LEN_1024 MBEDTLS_SSL_MAX_FRAG_LEN_1024 +#define SSL_MAX_FRAG_LEN_2048 MBEDTLS_SSL_MAX_FRAG_LEN_2048 +#define SSL_MAX_FRAG_LEN_4096 MBEDTLS_SSL_MAX_FRAG_LEN_4096 +#define SSL_MAX_FRAG_LEN_512 MBEDTLS_SSL_MAX_FRAG_LEN_512 +#define SSL_MAX_FRAG_LEN_INVALID MBEDTLS_SSL_MAX_FRAG_LEN_INVALID +#define SSL_MAX_FRAG_LEN_NONE MBEDTLS_SSL_MAX_FRAG_LEN_NONE +#define SSL_MAX_MAJOR_VERSION MBEDTLS_SSL_MAX_MAJOR_VERSION +#define SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MAX_MINOR_VERSION +#define SSL_MINOR_VERSION_0 MBEDTLS_SSL_MINOR_VERSION_0 +#define SSL_MINOR_VERSION_1 MBEDTLS_SSL_MINOR_VERSION_1 +#define SSL_MINOR_VERSION_2 MBEDTLS_SSL_MINOR_VERSION_2 +#define SSL_MINOR_VERSION_3 MBEDTLS_SSL_MINOR_VERSION_3 +#define SSL_MIN_MAJOR_VERSION MBEDTLS_SSL_MIN_MAJOR_VERSION +#define SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MIN_MINOR_VERSION +#define SSL_MSG_ALERT MBEDTLS_SSL_MSG_ALERT +#define SSL_MSG_APPLICATION_DATA MBEDTLS_SSL_MSG_APPLICATION_DATA +#define SSL_MSG_CHANGE_CIPHER_SPEC MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC +#define SSL_MSG_HANDSHAKE MBEDTLS_SSL_MSG_HANDSHAKE +#define SSL_PADDING_ADD MBEDTLS_SSL_PADDING_ADD +#define SSL_RENEGOTIATION MBEDTLS_SSL_RENEGOTIATION +#define SSL_RENEGOTIATION_DISABLED MBEDTLS_SSL_RENEGOTIATION_DISABLED +#define SSL_RENEGOTIATION_DONE MBEDTLS_SSL_RENEGOTIATION_DONE +#define SSL_RENEGOTIATION_ENABLED MBEDTLS_SSL_RENEGOTIATION_ENABLED +#define SSL_RENEGOTIATION_NOT_ENFORCED MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED +#define SSL_RENEGOTIATION_PENDING MBEDTLS_SSL_RENEGOTIATION_PENDING +#define SSL_RENEGO_MAX_RECORDS_DEFAULT MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT +#define SSL_RETRANS_FINISHED MBEDTLS_SSL_RETRANS_FINISHED +#define SSL_RETRANS_PREPARING MBEDTLS_SSL_RETRANS_PREPARING +#define SSL_RETRANS_SENDING MBEDTLS_SSL_RETRANS_SENDING +#define SSL_RETRANS_WAITING MBEDTLS_SSL_RETRANS_WAITING +#define SSL_SECURE_RENEGOTIATION MBEDTLS_SSL_SECURE_RENEGOTIATION +#define SSL_SERVER_CERTIFICATE MBEDTLS_SSL_SERVER_CERTIFICATE +#define SSL_SERVER_CHANGE_CIPHER_SPEC MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC +#define SSL_SERVER_FINISHED MBEDTLS_SSL_SERVER_FINISHED +#define SSL_SERVER_HELLO MBEDTLS_SSL_SERVER_HELLO +#define SSL_SERVER_HELLO_DONE MBEDTLS_SSL_SERVER_HELLO_DONE +#define SSL_SERVER_HELLO_VERIFY_REQUEST_SENT MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT +#define SSL_SERVER_KEY_EXCHANGE MBEDTLS_SSL_SERVER_KEY_EXCHANGE +#define SSL_SERVER_NEW_SESSION_TICKET MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET +#define SSL_SESSION_TICKETS_DISABLED MBEDTLS_SSL_SESSION_TICKETS_DISABLED +#define SSL_SESSION_TICKETS_ENABLED MBEDTLS_SSL_SESSION_TICKETS_ENABLED +#define SSL_SIG_ANON MBEDTLS_SSL_SIG_ANON +#define SSL_SIG_ECDSA MBEDTLS_SSL_SIG_ECDSA +#define SSL_SIG_RSA MBEDTLS_SSL_SIG_RSA +#define SSL_TRANSPORT_DATAGRAM MBEDTLS_SSL_TRANSPORT_DATAGRAM +#define SSL_TRANSPORT_STREAM MBEDTLS_SSL_TRANSPORT_STREAM +#define SSL_TRUNCATED_HMAC_LEN MBEDTLS_SSL_TRUNCATED_HMAC_LEN +#define SSL_TRUNC_HMAC_DISABLED MBEDTLS_SSL_TRUNC_HMAC_DISABLED +#define SSL_TRUNC_HMAC_ENABLED MBEDTLS_SSL_TRUNC_HMAC_ENABLED +#define SSL_VERIFY_DATA_MAX_LEN MBEDTLS_SSL_VERIFY_DATA_MAX_LEN +#define SSL_VERIFY_NONE MBEDTLS_SSL_VERIFY_NONE +#define SSL_VERIFY_OPTIONAL MBEDTLS_SSL_VERIFY_OPTIONAL +#define SSL_VERIFY_REQUIRED MBEDTLS_SSL_VERIFY_REQUIRED +#define TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA +#define TLS_DHE_PSK_WITH_AES_128_CBC_SHA MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA +#define TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 +#define TLS_DHE_PSK_WITH_AES_128_CCM MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM +#define TLS_DHE_PSK_WITH_AES_128_CCM_8 MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8 +#define TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 +#define TLS_DHE_PSK_WITH_AES_256_CBC_SHA MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA +#define TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 +#define TLS_DHE_PSK_WITH_AES_256_CCM MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM +#define TLS_DHE_PSK_WITH_AES_256_CCM_8 MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8 +#define TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 +#define TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_DHE_PSK_WITH_NULL_SHA MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA +#define TLS_DHE_PSK_WITH_NULL_SHA256 MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 +#define TLS_DHE_PSK_WITH_NULL_SHA384 MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 +#define TLS_DHE_PSK_WITH_RC4_128_SHA MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA +#define TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA +#define TLS_DHE_RSA_WITH_AES_128_CBC_SHA MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA +#define TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 +#define TLS_DHE_RSA_WITH_AES_128_CCM MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM +#define TLS_DHE_RSA_WITH_AES_128_CCM_8 MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8 +#define TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 +#define TLS_DHE_RSA_WITH_AES_256_CBC_SHA MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA +#define TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 +#define TLS_DHE_RSA_WITH_AES_256_CCM MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM +#define TLS_DHE_RSA_WITH_AES_256_CCM_8 MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8 +#define TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 +#define TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA +#define TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA +#define TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 +#define TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_DHE_RSA_WITH_DES_CBC_SHA MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA +#define TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA +#define TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA +#define TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 +#define TLS_ECDHE_ECDSA_WITH_AES_128_CCM MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM +#define TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 +#define TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 +#define TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA +#define TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 +#define TLS_ECDHE_ECDSA_WITH_AES_256_CCM MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM +#define TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 +#define TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 +#define TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_ECDHE_ECDSA_WITH_NULL_SHA MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA +#define TLS_ECDHE_ECDSA_WITH_RC4_128_SHA MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA +#define TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA +#define TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA +#define TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 +#define TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA +#define TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 +#define TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_ECDHE_PSK_WITH_NULL_SHA MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA +#define TLS_ECDHE_PSK_WITH_NULL_SHA256 MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 +#define TLS_ECDHE_PSK_WITH_NULL_SHA384 MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 +#define TLS_ECDHE_PSK_WITH_RC4_128_SHA MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA +#define TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA +#define TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA +#define TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 +#define TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 +#define TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA +#define TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 +#define TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 +#define TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_ECDHE_RSA_WITH_NULL_SHA MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA +#define TLS_ECDHE_RSA_WITH_RC4_128_SHA MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA +#define TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA +#define TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA +#define TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 +#define TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 +#define TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA +#define TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 +#define TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 +#define TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_ECDH_ECDSA_WITH_NULL_SHA MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA +#define TLS_ECDH_ECDSA_WITH_RC4_128_SHA MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA +#define TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA +#define TLS_ECDH_RSA_WITH_AES_128_CBC_SHA MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA +#define TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 +#define TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 +#define TLS_ECDH_RSA_WITH_AES_256_CBC_SHA MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA +#define TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 +#define TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 +#define TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_ECDH_RSA_WITH_NULL_SHA MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA +#define TLS_ECDH_RSA_WITH_RC4_128_SHA MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA +#define TLS_EXT_ALPN MBEDTLS_TLS_EXT_ALPN +#define TLS_EXT_ENCRYPT_THEN_MAC MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC +#define TLS_EXT_EXTENDED_MASTER_SECRET MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET +#define TLS_EXT_MAX_FRAGMENT_LENGTH MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH +#define TLS_EXT_RENEGOTIATION_INFO MBEDTLS_TLS_EXT_RENEGOTIATION_INFO +#define TLS_EXT_SERVERNAME MBEDTLS_TLS_EXT_SERVERNAME +#define TLS_EXT_SERVERNAME_HOSTNAME MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME +#define TLS_EXT_SESSION_TICKET MBEDTLS_TLS_EXT_SESSION_TICKET +#define TLS_EXT_SIG_ALG MBEDTLS_TLS_EXT_SIG_ALG +#define TLS_EXT_SUPPORTED_ELLIPTIC_CURVES MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES +#define TLS_EXT_SUPPORTED_POINT_FORMATS MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS +#define TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT +#define TLS_EXT_TRUNCATED_HMAC MBEDTLS_TLS_EXT_TRUNCATED_HMAC +#define TLS_PSK_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA +#define TLS_PSK_WITH_AES_128_CBC_SHA MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA +#define TLS_PSK_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 +#define TLS_PSK_WITH_AES_128_CCM MBEDTLS_TLS_PSK_WITH_AES_128_CCM +#define TLS_PSK_WITH_AES_128_CCM_8 MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8 +#define TLS_PSK_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 +#define TLS_PSK_WITH_AES_256_CBC_SHA MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA +#define TLS_PSK_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 +#define TLS_PSK_WITH_AES_256_CCM MBEDTLS_TLS_PSK_WITH_AES_256_CCM +#define TLS_PSK_WITH_AES_256_CCM_8 MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8 +#define TLS_PSK_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 +#define TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_PSK_WITH_NULL_SHA MBEDTLS_TLS_PSK_WITH_NULL_SHA +#define TLS_PSK_WITH_NULL_SHA256 MBEDTLS_TLS_PSK_WITH_NULL_SHA256 +#define TLS_PSK_WITH_NULL_SHA384 MBEDTLS_TLS_PSK_WITH_NULL_SHA384 +#define TLS_PSK_WITH_RC4_128_SHA MBEDTLS_TLS_PSK_WITH_RC4_128_SHA +#define TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA +#define TLS_RSA_PSK_WITH_AES_128_CBC_SHA MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA +#define TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 +#define TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 +#define TLS_RSA_PSK_WITH_AES_256_CBC_SHA MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA +#define TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 +#define TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 +#define TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 +#define TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_RSA_PSK_WITH_NULL_SHA MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA +#define TLS_RSA_PSK_WITH_NULL_SHA256 MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 +#define TLS_RSA_PSK_WITH_NULL_SHA384 MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 +#define TLS_RSA_PSK_WITH_RC4_128_SHA MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA +#define TLS_RSA_WITH_3DES_EDE_CBC_SHA MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA +#define TLS_RSA_WITH_AES_128_CBC_SHA MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA +#define TLS_RSA_WITH_AES_128_CBC_SHA256 MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 +#define TLS_RSA_WITH_AES_128_CCM MBEDTLS_TLS_RSA_WITH_AES_128_CCM +#define TLS_RSA_WITH_AES_128_CCM_8 MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8 +#define TLS_RSA_WITH_AES_128_GCM_SHA256 MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 +#define TLS_RSA_WITH_AES_256_CBC_SHA MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA +#define TLS_RSA_WITH_AES_256_CBC_SHA256 MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 +#define TLS_RSA_WITH_AES_256_CCM MBEDTLS_TLS_RSA_WITH_AES_256_CCM +#define TLS_RSA_WITH_AES_256_CCM_8 MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8 +#define TLS_RSA_WITH_AES_256_GCM_SHA384 MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 +#define TLS_RSA_WITH_CAMELLIA_128_CBC_SHA MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA +#define TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 +#define TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 +#define TLS_RSA_WITH_CAMELLIA_256_CBC_SHA MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA +#define TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 +#define TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 +#define TLS_RSA_WITH_DES_CBC_SHA MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA +#define TLS_RSA_WITH_NULL_MD5 MBEDTLS_TLS_RSA_WITH_NULL_MD5 +#define TLS_RSA_WITH_NULL_SHA MBEDTLS_TLS_RSA_WITH_NULL_SHA +#define TLS_RSA_WITH_NULL_SHA256 MBEDTLS_TLS_RSA_WITH_NULL_SHA256 +#define TLS_RSA_WITH_RC4_128_MD5 MBEDTLS_TLS_RSA_WITH_RC4_128_MD5 +#define TLS_RSA_WITH_RC4_128_SHA MBEDTLS_TLS_RSA_WITH_RC4_128_SHA +#define UL64 MBEDTLS_UL64 +#define X509_CRT_VERSION_1 MBEDTLS_X509_CRT_VERSION_1 +#define X509_CRT_VERSION_2 MBEDTLS_X509_CRT_VERSION_2 +#define X509_CRT_VERSION_3 MBEDTLS_X509_CRT_VERSION_3 +#define X509_FORMAT_DER MBEDTLS_X509_FORMAT_DER +#define X509_FORMAT_PEM MBEDTLS_X509_FORMAT_PEM +#define X509_MAX_DN_NAME_SIZE MBEDTLS_X509_MAX_DN_NAME_SIZE +#define X509_RFC5280_MAX_SERIAL_LEN MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN +#define X509_RFC5280_UTC_TIME_LEN MBEDTLS_X509_RFC5280_UTC_TIME_LEN +#define XTEA_DECRYPT MBEDTLS_XTEA_DECRYPT +#define XTEA_ENCRYPT MBEDTLS_XTEA_ENCRYPT +#define _asn1_bitstring mbedtls_asn1_bitstring +#define _asn1_buf mbedtls_asn1_buf +#define _asn1_named_data mbedtls_asn1_named_data +#define _asn1_sequence mbedtls_asn1_sequence +#define _ssl_cache_context mbedtls_ssl_cache_context +#define _ssl_cache_entry mbedtls_ssl_cache_entry +#define _ssl_ciphersuite_t mbedtls_ssl_ciphersuite_t +#define _ssl_context mbedtls_ssl_context +#define _ssl_flight_item mbedtls_ssl_flight_item +#define _ssl_handshake_params mbedtls_ssl_handshake_params +#define _ssl_key_cert mbedtls_ssl_key_cert +#define _ssl_premaster_secret mbedtls_ssl_premaster_secret +#define _ssl_session mbedtls_ssl_session +#define _ssl_ticket_keys mbedtls_ssl_ticket_keys +#define _ssl_transform mbedtls_ssl_transform +#define _x509_crl mbedtls_x509_crl +#define _x509_crl_entry mbedtls_x509_crl_entry +#define _x509_crt mbedtls_x509_crt +#define _x509_csr mbedtls_x509_csr +#define _x509_time mbedtls_x509_time +#define _x509write_cert mbedtls_x509write_cert +#define _x509write_csr mbedtls_x509write_csr +#define aes_context mbedtls_aes_context +#define aes_crypt_cbc mbedtls_aes_crypt_cbc +#define aes_crypt_cfb128 mbedtls_aes_crypt_cfb128 +#define aes_crypt_cfb8 mbedtls_aes_crypt_cfb8 +#define aes_crypt_ctr mbedtls_aes_crypt_ctr +#define aes_crypt_ecb mbedtls_aes_crypt_ecb +#define aes_free mbedtls_aes_free +#define aes_init mbedtls_aes_init +#define aes_self_test mbedtls_aes_self_test +#define aes_setkey_dec mbedtls_aes_setkey_dec +#define aes_setkey_enc mbedtls_aes_setkey_enc +#define aesni_crypt_ecb mbedtls_aesni_crypt_ecb +#define aesni_gcm_mult mbedtls_aesni_gcm_mult +#define aesni_inverse_key mbedtls_aesni_inverse_key +#define aesni_setkey_enc mbedtls_aesni_setkey_enc +#define aesni_supports mbedtls_aesni_has_support +#define alarmed mbedtls_timing_alarmed +#define arc4_context mbedtls_arc4_context +#define arc4_crypt mbedtls_arc4_crypt +#define arc4_free mbedtls_arc4_free +#define arc4_init mbedtls_arc4_init +#define arc4_self_test mbedtls_arc4_self_test +#define arc4_setup mbedtls_arc4_setup +#define asn1_bitstring mbedtls_asn1_bitstring +#define asn1_buf mbedtls_asn1_buf +#define asn1_find_named_data mbedtls_asn1_find_named_data +#define asn1_free_named_data mbedtls_asn1_free_named_data +#define asn1_free_named_data_list mbedtls_asn1_free_named_data_list +#define asn1_get_alg mbedtls_asn1_get_alg +#define asn1_get_alg_null mbedtls_asn1_get_alg_null +#define asn1_get_bitstring mbedtls_asn1_get_bitstring +#define asn1_get_bitstring_null mbedtls_asn1_get_bitstring_null +#define asn1_get_bool mbedtls_asn1_get_bool +#define asn1_get_int mbedtls_asn1_get_int +#define asn1_get_len mbedtls_asn1_get_len +#define asn1_get_mpi mbedtls_asn1_get_mpi +#define asn1_get_sequence_of mbedtls_asn1_get_sequence_of +#define asn1_get_tag mbedtls_asn1_get_tag +#define asn1_named_data mbedtls_asn1_named_data +#define asn1_sequence mbedtls_asn1_sequence +#define asn1_store_named_data mbedtls_asn1_store_named_data +#define asn1_write_algorithm_identifier mbedtls_asn1_write_algorithm_identifier +#define asn1_write_bitstring mbedtls_asn1_write_bitstring +#define asn1_write_bool mbedtls_asn1_write_bool +#define asn1_write_ia5_string mbedtls_asn1_write_ia5_string +#define asn1_write_int mbedtls_asn1_write_int +#define asn1_write_len mbedtls_asn1_write_len +#define asn1_write_mpi mbedtls_asn1_write_mpi +#define asn1_write_null mbedtls_asn1_write_null +#define asn1_write_octet_string mbedtls_asn1_write_octet_string +#define asn1_write_oid mbedtls_asn1_write_oid +#define asn1_write_printable_string mbedtls_asn1_write_printable_string +#define asn1_write_raw_buffer mbedtls_asn1_write_raw_buffer +#define asn1_write_tag mbedtls_asn1_write_tag +#define base64_decode mbedtls_base64_decode +#define base64_encode mbedtls_base64_encode +#define base64_self_test mbedtls_base64_self_test +#define blowfish_context mbedtls_blowfish_context +#define blowfish_crypt_cbc mbedtls_blowfish_crypt_cbc +#define blowfish_crypt_cfb64 mbedtls_blowfish_crypt_cfb64 +#define blowfish_crypt_ctr mbedtls_blowfish_crypt_ctr +#define blowfish_crypt_ecb mbedtls_blowfish_crypt_ecb +#define blowfish_free mbedtls_blowfish_free +#define blowfish_init mbedtls_blowfish_init +#define blowfish_setkey mbedtls_blowfish_setkey +#define camellia_context mbedtls_camellia_context +#define camellia_crypt_cbc mbedtls_camellia_crypt_cbc +#define camellia_crypt_cfb128 mbedtls_camellia_crypt_cfb128 +#define camellia_crypt_ctr mbedtls_camellia_crypt_ctr +#define camellia_crypt_ecb mbedtls_camellia_crypt_ecb +#define camellia_free mbedtls_camellia_free +#define camellia_init mbedtls_camellia_init +#define camellia_self_test mbedtls_camellia_self_test +#define camellia_setkey_dec mbedtls_camellia_setkey_dec +#define camellia_setkey_enc mbedtls_camellia_setkey_enc +#define ccm_auth_decrypt mbedtls_ccm_auth_decrypt +#define ccm_context mbedtls_ccm_context +#define ccm_encrypt_and_tag mbedtls_ccm_encrypt_and_tag +#define ccm_free mbedtls_ccm_free +#define ccm_init mbedtls_ccm_init +#define ccm_self_test mbedtls_ccm_self_test +#define cipher_auth_decrypt mbedtls_cipher_auth_decrypt +#define cipher_auth_encrypt mbedtls_cipher_auth_encrypt +#define cipher_base_t mbedtls_cipher_base_t +#define cipher_check_tag mbedtls_cipher_check_tag +#define cipher_context_t mbedtls_cipher_context_t +#define cipher_crypt mbedtls_cipher_crypt +#define cipher_definition_t mbedtls_cipher_definition_t +#define cipher_definitions mbedtls_cipher_definitions +#define cipher_finish mbedtls_cipher_finish +#define cipher_free mbedtls_cipher_free +#define cipher_free_ctx mbedtls_cipher_free_ctx +#define cipher_get_block_size mbedtls_cipher_get_block_size +#define cipher_get_cipher_mode mbedtls_cipher_get_cipher_mode +#define cipher_get_iv_size mbedtls_cipher_get_iv_size +#define cipher_get_key_size mbedtls_cipher_get_key_bitlen +#define cipher_get_name mbedtls_cipher_get_name +#define cipher_get_operation mbedtls_cipher_get_operation +#define cipher_get_type mbedtls_cipher_get_type +#define cipher_id_t mbedtls_cipher_id_t +#define cipher_info_from_string mbedtls_cipher_info_from_string +#define cipher_info_from_type mbedtls_cipher_info_from_type +#define cipher_info_from_values mbedtls_cipher_info_from_values +#define cipher_info_t mbedtls_cipher_info_t +#define cipher_init mbedtls_cipher_init +#define cipher_init_ctx mbedtls_cipher_setup +#define cipher_list mbedtls_cipher_list +#define cipher_mode_t mbedtls_cipher_mode_t +#define cipher_padding_t mbedtls_cipher_padding_t +#define cipher_reset mbedtls_cipher_reset +#define cipher_self_test mbedtls_cipher_self_test +#define cipher_set_iv mbedtls_cipher_set_iv +#define cipher_set_padding_mode mbedtls_cipher_set_padding_mode +#define cipher_setkey mbedtls_cipher_setkey +#define cipher_type_t mbedtls_cipher_type_t +#define cipher_update mbedtls_cipher_update +#define cipher_update_ad mbedtls_cipher_update_ad +#define cipher_write_tag mbedtls_cipher_write_tag +#define ctr_drbg_context mbedtls_ctr_drbg_context +#define ctr_drbg_free mbedtls_ctr_drbg_free +#define ctr_drbg_init mbedtls_ctr_drbg_init +#define ctr_drbg_init_entropy_len mbedtls_ctr_drbg_init_entropy_len +#define ctr_drbg_random mbedtls_ctr_drbg_random +#define ctr_drbg_random_with_add mbedtls_ctr_drbg_random_with_add +#define ctr_drbg_reseed mbedtls_ctr_drbg_reseed +#define ctr_drbg_self_test mbedtls_ctr_drbg_self_test +#define ctr_drbg_set_entropy_len mbedtls_ctr_drbg_set_entropy_len +#define ctr_drbg_set_prediction_resistance mbedtls_ctr_drbg_set_prediction_resistance +#define ctr_drbg_set_reseed_interval mbedtls_ctr_drbg_set_reseed_interval +#define ctr_drbg_update mbedtls_ctr_drbg_update +#define ctr_drbg_update_seed_file mbedtls_ctr_drbg_update_seed_file +#define ctr_drbg_write_seed_file mbedtls_ctr_drbg_write_seed_file +#define debug_fmt mbedtls_debug_fmt +#define debug_print_buf mbedtls_debug_print_buf +#define debug_print_crt mbedtls_debug_print_crt +#define debug_print_ecp mbedtls_debug_print_ecp +#define debug_print_mpi mbedtls_debug_print_mpi +#define debug_print_msg mbedtls_debug_print_msg +#define debug_print_ret mbedtls_debug_print_ret +#define debug_set_log_mode mbedtls_debug_set_log_mode +#define debug_set_threshold mbedtls_debug_set_threshold +#define des3_context mbedtls_des3_context +#define des3_crypt_cbc mbedtls_des3_crypt_cbc +#define des3_crypt_ecb mbedtls_des3_crypt_ecb +#define des3_free mbedtls_des3_free +#define des3_init mbedtls_des3_init +#define des3_set2key_dec mbedtls_des3_set2key_dec +#define des3_set2key_enc mbedtls_des3_set2key_enc +#define des3_set3key_dec mbedtls_des3_set3key_dec +#define des3_set3key_enc mbedtls_des3_set3key_enc +#define des_context mbedtls_des_context +#define des_crypt_cbc mbedtls_des_crypt_cbc +#define des_crypt_ecb mbedtls_des_crypt_ecb +#define des_free mbedtls_des_free +#define des_init mbedtls_des_init +#define des_key_check_key_parity mbedtls_des_key_check_key_parity +#define des_key_check_weak mbedtls_des_key_check_weak +#define des_key_set_parity mbedtls_des_key_set_parity +#define des_self_test mbedtls_des_self_test +#define des_setkey_dec mbedtls_des_setkey_dec +#define des_setkey_enc mbedtls_des_setkey_enc +#define dhm_calc_secret mbedtls_dhm_calc_secret +#define dhm_context mbedtls_dhm_context +#define dhm_free mbedtls_dhm_free +#define dhm_init mbedtls_dhm_init +#define dhm_make_params mbedtls_dhm_make_params +#define dhm_make_public mbedtls_dhm_make_public +#define dhm_parse_dhm mbedtls_dhm_parse_dhm +#define dhm_parse_dhmfile mbedtls_dhm_parse_dhmfile +#define dhm_read_params mbedtls_dhm_read_params +#define dhm_read_public mbedtls_dhm_read_public +#define dhm_self_test mbedtls_dhm_self_test +#define ecdh_calc_secret mbedtls_ecdh_calc_secret +#define ecdh_compute_shared mbedtls_ecdh_compute_shared +#define ecdh_context mbedtls_ecdh_context +#define ecdh_free mbedtls_ecdh_free +#define ecdh_gen_public mbedtls_ecdh_gen_public +#define ecdh_get_params mbedtls_ecdh_get_params +#define ecdh_init mbedtls_ecdh_init +#define ecdh_make_params mbedtls_ecdh_make_params +#define ecdh_make_public mbedtls_ecdh_make_public +#define ecdh_read_params mbedtls_ecdh_read_params +#define ecdh_read_public mbedtls_ecdh_read_public +#define ecdh_self_test mbedtls_ecdh_self_test +#define ecdh_side mbedtls_ecdh_side +#define ecdsa_context mbedtls_ecdsa_context +#define ecdsa_free mbedtls_ecdsa_free +#define ecdsa_from_keypair mbedtls_ecdsa_from_keypair +#define ecdsa_genkey mbedtls_ecdsa_genkey +#define ecdsa_info mbedtls_ecdsa_info +#define ecdsa_init mbedtls_ecdsa_init +#define ecdsa_read_signature mbedtls_ecdsa_read_signature +#define ecdsa_self_test mbedtls_ecdsa_self_test +#define ecdsa_sign mbedtls_ecdsa_sign +#define ecdsa_sign_det mbedtls_ecdsa_sign_det +#define ecdsa_verify mbedtls_ecdsa_verify +#define ecdsa_write_signature mbedtls_ecdsa_write_signature +#define ecdsa_write_signature_det mbedtls_ecdsa_write_signature_det +#define eckey_info mbedtls_eckey_info +#define eckeydh_info mbedtls_eckeydh_info +#define ecp_add mbedtls_ecp_add +#define ecp_check_privkey mbedtls_ecp_check_privkey +#define ecp_check_pub_priv mbedtls_ecp_check_pub_priv +#define ecp_check_pubkey mbedtls_ecp_check_pubkey +#define ecp_copy mbedtls_ecp_copy +#define ecp_curve_info mbedtls_ecp_curve_info +#define ecp_curve_info_from_grp_id mbedtls_ecp_curve_info_from_grp_id +#define ecp_curve_info_from_name mbedtls_ecp_curve_info_from_name +#define ecp_curve_info_from_tls_id mbedtls_ecp_curve_info_from_tls_id +#define ecp_curve_list mbedtls_ecp_curve_list +#define ecp_gen_key mbedtls_ecp_gen_key +#define ecp_gen_keypair mbedtls_ecp_gen_keypair +#define ecp_group mbedtls_ecp_group +#define ecp_group_copy mbedtls_ecp_group_copy +#define ecp_group_free mbedtls_ecp_group_free +#define ecp_group_id mbedtls_ecp_group_id +#define ecp_group_init mbedtls_ecp_group_init +#define ecp_group_read_string mbedtls_ecp_group_read_string +#define ecp_grp_id_list mbedtls_ecp_grp_id_list +#define ecp_is_zero mbedtls_ecp_is_zero +#define ecp_keypair mbedtls_ecp_keypair +#define ecp_keypair_free mbedtls_ecp_keypair_free +#define ecp_keypair_init mbedtls_ecp_keypair_init +#define ecp_mul mbedtls_ecp_mul +#define ecp_point mbedtls_ecp_point +#define ecp_point_free mbedtls_ecp_point_free +#define ecp_point_init mbedtls_ecp_point_init +#define ecp_point_read_binary mbedtls_ecp_point_read_binary +#define ecp_point_read_string mbedtls_ecp_point_read_string +#define ecp_point_write_binary mbedtls_ecp_point_write_binary +#define ecp_self_test mbedtls_ecp_self_test +#define ecp_set_zero mbedtls_ecp_set_zero +#define ecp_sub mbedtls_ecp_sub +#define ecp_tls_read_group mbedtls_ecp_tls_read_group +#define ecp_tls_read_point mbedtls_ecp_tls_read_point +#define ecp_tls_write_group mbedtls_ecp_tls_write_group +#define ecp_tls_write_point mbedtls_ecp_tls_write_point +#define ecp_use_known_dp mbedtls_ecp_group_load +#define entropy_add_source mbedtls_entropy_add_source +#define entropy_context mbedtls_entropy_context +#define entropy_free mbedtls_entropy_free +#define entropy_func mbedtls_entropy_func +#define entropy_gather mbedtls_entropy_gather +#define entropy_init mbedtls_entropy_init +#define entropy_self_test mbedtls_entropy_self_test +#define entropy_update_manual mbedtls_entropy_update_manual +#define entropy_update_seed_file mbedtls_entropy_update_seed_file +#define entropy_write_seed_file mbedtls_entropy_write_seed_file +#define error_strerror mbedtls_strerror +#define f_source_ptr mbedtls_entropy_f_source_ptr +#define gcm_auth_decrypt mbedtls_gcm_auth_decrypt +#define gcm_context mbedtls_gcm_context +#define gcm_crypt_and_tag mbedtls_gcm_crypt_and_tag +#define gcm_finish mbedtls_gcm_finish +#define gcm_free mbedtls_gcm_free +#define gcm_init mbedtls_gcm_init +#define gcm_self_test mbedtls_gcm_self_test +#define gcm_starts mbedtls_gcm_starts +#define gcm_update mbedtls_gcm_update +#define get_timer mbedtls_timing_get_timer +#define hardclock mbedtls_timing_hardclock +#define hardclock_poll mbedtls_hardclock_poll +#define havege_free mbedtls_havege_free +#define havege_init mbedtls_havege_init +#define havege_poll mbedtls_havege_poll +#define havege_random mbedtls_havege_random +#define havege_state mbedtls_havege_state +#define hmac_drbg_context mbedtls_hmac_drbg_context +#define hmac_drbg_free mbedtls_hmac_drbg_free +#define hmac_drbg_init mbedtls_hmac_drbg_init +#define hmac_drbg_init_buf mbedtls_hmac_drbg_init_buf +#define hmac_drbg_random mbedtls_hmac_drbg_random +#define hmac_drbg_random_with_add mbedtls_hmac_drbg_random_with_add +#define hmac_drbg_reseed mbedtls_hmac_drbg_reseed +#define hmac_drbg_self_test mbedtls_hmac_drbg_self_test +#define hmac_drbg_set_entropy_len mbedtls_hmac_drbg_set_entropy_len +#define hmac_drbg_set_prediction_resistance mbedtls_hmac_drbg_set_prediction_resistance +#define hmac_drbg_set_reseed_interval mbedtls_hmac_drbg_set_reseed_interval +#define hmac_drbg_update mbedtls_hmac_drbg_update +#define hmac_drbg_update_seed_file mbedtls_hmac_drbg_update_seed_file +#define hmac_drbg_write_seed_file mbedtls_hmac_drbg_write_seed_file +#define hr_time mbedtls_timing_hr_time +#define key_exchange_type_t mbedtls_key_exchange_type_t +#define md mbedtls_md +#define md2 mbedtls_md2 +#define md2_context mbedtls_md2_context +#define md2_file mbedtls_md2_file +#define md2_finish mbedtls_md2_finish +#define md2_free mbedtls_md2_free +#define md2_hmac mbedtls_md2_hmac +#define md2_hmac_finish mbedtls_md2_hmac_finish +#define md2_hmac_reset mbedtls_md2_hmac_reset +#define md2_hmac_starts mbedtls_md2_hmac_starts +#define md2_hmac_update mbedtls_md2_hmac_update +#define md2_info mbedtls_md2_info +#define md2_init mbedtls_md2_init +#define md2_process mbedtls_md2_process +#define md2_self_test mbedtls_md2_self_test +#define md2_starts mbedtls_md2_starts +#define md2_update mbedtls_md2_update +#define md4 mbedtls_md4 +#define md4_context mbedtls_md4_context +#define md4_file mbedtls_md4_file +#define md4_finish mbedtls_md4_finish +#define md4_free mbedtls_md4_free +#define md4_hmac mbedtls_md4_hmac +#define md4_hmac_finish mbedtls_md4_hmac_finish +#define md4_hmac_reset mbedtls_md4_hmac_reset +#define md4_hmac_starts mbedtls_md4_hmac_starts +#define md4_hmac_update mbedtls_md4_hmac_update +#define md4_info mbedtls_md4_info +#define md4_init mbedtls_md4_init +#define md4_process mbedtls_md4_process +#define md4_self_test mbedtls_md4_self_test +#define md4_starts mbedtls_md4_starts +#define md4_update mbedtls_md4_update +#define md5 mbedtls_md5 +#define md5_context mbedtls_md5_context +#define md5_file mbedtls_md5_file +#define md5_finish mbedtls_md5_finish +#define md5_free mbedtls_md5_free +#define md5_hmac mbedtls_md5_hmac +#define md5_hmac_finish mbedtls_md5_hmac_finish +#define md5_hmac_reset mbedtls_md5_hmac_reset +#define md5_hmac_starts mbedtls_md5_hmac_starts +#define md5_hmac_update mbedtls_md5_hmac_update +#define md5_info mbedtls_md5_info +#define md5_init mbedtls_md5_init +#define md5_process mbedtls_md5_process +#define md5_self_test mbedtls_md5_self_test +#define md5_starts mbedtls_md5_starts +#define md5_update mbedtls_md5_update +#define md_context_t mbedtls_md_context_t +#define md_file mbedtls_md_file +#define md_finish mbedtls_md_finish +#define md_free mbedtls_md_free +#define md_free_ctx mbedtls_md_free_ctx +#define md_get_name mbedtls_md_get_name +#define md_get_size mbedtls_md_get_size +#define md_get_type mbedtls_md_get_type +#define md_hmac mbedtls_md_hmac +#define md_hmac_finish mbedtls_md_hmac_finish +#define md_hmac_reset mbedtls_md_hmac_reset +#define md_hmac_starts mbedtls_md_hmac_starts +#define md_hmac_update mbedtls_md_hmac_update +#define md_info_from_string mbedtls_md_info_from_string +#define md_info_from_type mbedtls_md_info_from_type +#define md_info_t mbedtls_md_info_t +#define md_init mbedtls_md_init +#define md_init_ctx mbedtls_md_init_ctx +#define md_list mbedtls_md_list +#define md_process mbedtls_md_process +#define md_starts mbedtls_md_starts +#define md_type_t mbedtls_md_type_t +#define md_update mbedtls_md_update +#define memory_buffer_alloc_cur_get mbedtls_memory_buffer_alloc_cur_get +#define memory_buffer_alloc_free mbedtls_memory_buffer_alloc_free +#define memory_buffer_alloc_init mbedtls_memory_buffer_alloc_init +#define memory_buffer_alloc_max_get mbedtls_memory_buffer_alloc_max_get +#define memory_buffer_alloc_max_reset mbedtls_memory_buffer_alloc_max_reset +#define memory_buffer_alloc_self_test mbedtls_memory_buffer_alloc_self_test +#define memory_buffer_alloc_status mbedtls_memory_buffer_alloc_status +#define memory_buffer_alloc_verify mbedtls_memory_buffer_alloc_verify +#define memory_buffer_set_verify mbedtls_memory_buffer_set_verify +#define memory_set_own mbedtls_memory_set_own +#define mpi mbedtls_mpi +#define mpi_add_abs mbedtls_mpi_add_abs +#define mpi_add_int mbedtls_mpi_add_int +#define mpi_add_mpi mbedtls_mpi_add_mpi +#define mpi_cmp_abs mbedtls_mpi_cmp_abs +#define mpi_cmp_int mbedtls_mpi_cmp_int +#define mpi_cmp_mpi mbedtls_mpi_cmp_mpi +#define mpi_copy mbedtls_mpi_copy +#define mpi_div_int mbedtls_mpi_div_int +#define mpi_div_mpi mbedtls_mpi_div_mpi +#define mpi_exp_mod mbedtls_mpi_exp_mod +#define mpi_fill_random mbedtls_mpi_fill_random +#define mpi_free mbedtls_mpi_free +#define mpi_gcd mbedtls_mpi_gcd +#define mpi_gen_prime mbedtls_mpi_gen_prime +#define mpi_get_bit mbedtls_mpi_get_bit +#define mpi_grow mbedtls_mpi_grow +#define mpi_init mbedtls_mpi_init +#define mpi_inv_mod mbedtls_mpi_inv_mod +#define mpi_is_prime mbedtls_mpi_is_prime +#define mpi_lsb mbedtls_mpi_lsb +#define mpi_lset mbedtls_mpi_lset +#define mpi_mod_int mbedtls_mpi_mod_int +#define mpi_mod_mpi mbedtls_mpi_mod_mpi +#define mpi_msb mbedtls_mpi_bitlen +#define mpi_mul_int mbedtls_mpi_mul_int +#define mpi_mul_mpi mbedtls_mpi_mul_mpi +#define mpi_read_binary mbedtls_mpi_read_binary +#define mpi_read_file mbedtls_mpi_read_file +#define mpi_read_string mbedtls_mpi_read_string +#define mpi_safe_cond_assign mbedtls_mpi_safe_cond_assign +#define mpi_safe_cond_swap mbedtls_mpi_safe_cond_swap +#define mpi_self_test mbedtls_mpi_self_test +#define mpi_set_bit mbedtls_mpi_set_bit +#define mpi_shift_l mbedtls_mpi_shift_l +#define mpi_shift_r mbedtls_mpi_shift_r +#define mpi_shrink mbedtls_mpi_shrink +#define mpi_size mbedtls_mpi_size +#define mpi_sub_abs mbedtls_mpi_sub_abs +#define mpi_sub_int mbedtls_mpi_sub_int +#define mpi_sub_mpi mbedtls_mpi_sub_mpi +#define mpi_swap mbedtls_mpi_swap +#define mpi_write_binary mbedtls_mpi_write_binary +#define mpi_write_file mbedtls_mpi_write_file +#define mpi_write_string mbedtls_mpi_write_string +#define net_accept mbedtls_net_accept +#define net_bind mbedtls_net_bind +#define net_close mbedtls_net_free +#define net_connect mbedtls_net_connect +#define net_recv mbedtls_net_recv +#define net_recv_timeout mbedtls_net_recv_timeout +#define net_send mbedtls_net_send +#define net_set_block mbedtls_net_set_block +#define net_set_nonblock mbedtls_net_set_nonblock +#define net_usleep mbedtls_net_usleep +#define oid_descriptor_t mbedtls_oid_descriptor_t +#define oid_get_attr_short_name mbedtls_oid_get_attr_short_name +#define oid_get_cipher_alg mbedtls_oid_get_cipher_alg +#define oid_get_ec_grp mbedtls_oid_get_ec_grp +#define oid_get_extended_key_usage mbedtls_oid_get_extended_key_usage +#define oid_get_md_alg mbedtls_oid_get_md_alg +#define oid_get_numeric_string mbedtls_oid_get_numeric_string +#define oid_get_oid_by_ec_grp mbedtls_oid_get_oid_by_ec_grp +#define oid_get_oid_by_md mbedtls_oid_get_oid_by_md +#define oid_get_oid_by_pk_alg mbedtls_oid_get_oid_by_pk_alg +#define oid_get_oid_by_sig_alg mbedtls_oid_get_oid_by_sig_alg +#define oid_get_pk_alg mbedtls_oid_get_pk_alg +#define oid_get_pkcs12_pbe_alg mbedtls_oid_get_pkcs12_pbe_alg +#define oid_get_sig_alg mbedtls_oid_get_sig_alg +#define oid_get_sig_alg_desc mbedtls_oid_get_sig_alg_desc +#define oid_get_x509_ext_type mbedtls_oid_get_x509_ext_type +#define operation_t mbedtls_operation_t +#define padlock_supports mbedtls_padlock_has_support +#define padlock_xcryptcbc mbedtls_padlock_xcryptcbc +#define padlock_xcryptecb mbedtls_padlock_xcryptecb +#define pbkdf2_hmac mbedtls_pbkdf2_hmac +#define pbkdf2_self_test mbedtls_pbkdf2_self_test +#define pem_context mbedtls_pem_context +#define pem_free mbedtls_pem_free +#define pem_init mbedtls_pem_init +#define pem_read_buffer mbedtls_pem_read_buffer +#define pem_write_buffer mbedtls_pem_write_buffer +#define pk_can_do mbedtls_pk_can_do +#define pk_check_pair mbedtls_pk_check_pair +#define pk_context mbedtls_pk_context +#define pk_debug mbedtls_pk_debug +#define pk_debug_item mbedtls_pk_debug_item +#define pk_debug_type mbedtls_pk_debug_type +#define pk_decrypt mbedtls_pk_decrypt +#define pk_ec mbedtls_pk_ec +#define pk_encrypt mbedtls_pk_encrypt +#define pk_free mbedtls_pk_free +#define pk_get_len mbedtls_pk_get_len +#define pk_get_name mbedtls_pk_get_name +#define pk_get_size mbedtls_pk_get_bitlen +#define pk_get_type mbedtls_pk_get_type +#define pk_info_from_type mbedtls_pk_info_from_type +#define pk_info_t mbedtls_pk_info_t +#define pk_init mbedtls_pk_init +#define pk_init_ctx mbedtls_pk_setup +#define pk_init_ctx_rsa_alt mbedtls_pk_setup_rsa_alt +#define pk_load_file mbedtls_pk_load_file +#define pk_parse_key mbedtls_pk_parse_key +#define pk_parse_keyfile mbedtls_pk_parse_keyfile +#define pk_parse_public_key mbedtls_pk_parse_public_key +#define pk_parse_public_keyfile mbedtls_pk_parse_public_keyfile +#define pk_parse_subpubkey mbedtls_pk_parse_subpubkey +#define pk_rsa mbedtls_pk_rsa +#define pk_rsa_alt_decrypt_func mbedtls_pk_rsa_alt_decrypt_func +#define pk_rsa_alt_key_len_func mbedtls_pk_rsa_alt_key_len_func +#define pk_rsa_alt_sign_func mbedtls_pk_rsa_alt_sign_func +#define pk_rsassa_pss_options mbedtls_pk_rsassa_pss_options +#define pk_sign mbedtls_pk_sign +#define pk_type_t mbedtls_pk_type_t +#define pk_verify mbedtls_pk_verify +#define pk_verify_ext mbedtls_pk_verify_ext +#define pk_write_key_der mbedtls_pk_write_key_der +#define pk_write_key_pem mbedtls_pk_write_key_pem +#define pk_write_pubkey mbedtls_pk_write_pubkey +#define pk_write_pubkey_der mbedtls_pk_write_pubkey_der +#define pk_write_pubkey_pem mbedtls_pk_write_pubkey_pem +#define pkcs11_context mbedtls_pkcs11_context +#define pkcs11_decrypt mbedtls_pkcs11_decrypt +#define pkcs11_priv_key_free mbedtls_pkcs11_priv_key_free +#define pkcs11_priv_key_init mbedtls_pkcs11_priv_key_bind +#define pkcs11_sign mbedtls_pkcs11_sign +#define pkcs11_x509_cert_init mbedtls_pkcs11_x509_cert_bind +#define pkcs12_derivation mbedtls_pkcs12_derivation +#define pkcs12_pbe mbedtls_pkcs12_pbe +#define pkcs12_pbe_sha1_rc4_128 mbedtls_pkcs12_pbe_sha1_rc4_128 +#define pkcs5_pbes2 mbedtls_pkcs5_pbes2 +#define pkcs5_pbkdf2_hmac mbedtls_pkcs5_pbkdf2_hmac +#define pkcs5_self_test mbedtls_pkcs5_self_test +#define platform_entropy_poll mbedtls_platform_entropy_poll +#define platform_set_exit mbedtls_platform_set_exit +#define platform_set_fprintf mbedtls_platform_set_fprintf +#define platform_set_malloc_free mbedtls_platform_set_malloc_free +#define platform_set_printf mbedtls_platform_set_printf +#define platform_set_snprintf mbedtls_platform_set_snprintf +#define polarssl_exit mbedtls_exit +#define polarssl_fprintf mbedtls_fprintf +#define polarssl_free mbedtls_free +#define polarssl_malloc mbedtls_malloc +#define polarssl_mutex_free mbedtls_mutex_free +#define polarssl_mutex_init mbedtls_mutex_init +#define polarssl_mutex_lock mbedtls_mutex_lock +#define polarssl_mutex_unlock mbedtls_mutex_unlock +#define polarssl_printf mbedtls_printf +#define polarssl_snprintf mbedtls_snprintf +#define polarssl_strerror mbedtls_strerror +#define ripemd160 mbedtls_ripemd160 +#define ripemd160_context mbedtls_ripemd160_context +#define ripemd160_file mbedtls_ripemd160_file +#define ripemd160_finish mbedtls_ripemd160_finish +#define ripemd160_free mbedtls_ripemd160_free +#define ripemd160_hmac mbedtls_ripemd160_hmac +#define ripemd160_hmac_finish mbedtls_ripemd160_hmac_finish +#define ripemd160_hmac_reset mbedtls_ripemd160_hmac_reset +#define ripemd160_hmac_starts mbedtls_ripemd160_hmac_starts +#define ripemd160_hmac_update mbedtls_ripemd160_hmac_update +#define ripemd160_info mbedtls_ripemd160_info +#define ripemd160_init mbedtls_ripemd160_init +#define ripemd160_process mbedtls_ripemd160_process +#define ripemd160_self_test mbedtls_ripemd160_self_test +#define ripemd160_starts mbedtls_ripemd160_starts +#define ripemd160_update mbedtls_ripemd160_update +#define rsa_alt_context mbedtls_rsa_alt_context +#define rsa_alt_info mbedtls_rsa_alt_info +#define rsa_check_privkey mbedtls_rsa_check_privkey +#define rsa_check_pub_priv mbedtls_rsa_check_pub_priv +#define rsa_check_pubkey mbedtls_rsa_check_pubkey +#define rsa_context mbedtls_rsa_context +#define rsa_copy mbedtls_rsa_copy +#define rsa_decrypt_func mbedtls_rsa_decrypt_func +#define rsa_free mbedtls_rsa_free +#define rsa_gen_key mbedtls_rsa_gen_key +#define rsa_info mbedtls_rsa_info +#define rsa_init mbedtls_rsa_init +#define rsa_key_len_func mbedtls_rsa_key_len_func +#define rsa_pkcs1_decrypt mbedtls_rsa_pkcs1_decrypt +#define rsa_pkcs1_encrypt mbedtls_rsa_pkcs1_encrypt +#define rsa_pkcs1_sign mbedtls_rsa_pkcs1_sign +#define rsa_pkcs1_verify mbedtls_rsa_pkcs1_verify +#define rsa_private mbedtls_rsa_private +#define rsa_public mbedtls_rsa_public +#define rsa_rsaes_oaep_decrypt mbedtls_rsa_rsaes_oaep_decrypt +#define rsa_rsaes_oaep_encrypt mbedtls_rsa_rsaes_oaep_encrypt +#define rsa_rsaes_pkcs1_v15_decrypt mbedtls_rsa_rsaes_pkcs1_v15_decrypt +#define rsa_rsaes_pkcs1_v15_encrypt mbedtls_rsa_rsaes_pkcs1_v15_encrypt +#define rsa_rsassa_pkcs1_v15_sign mbedtls_rsa_rsassa_pkcs1_v15_sign +#define rsa_rsassa_pkcs1_v15_verify mbedtls_rsa_rsassa_pkcs1_v15_verify +#define rsa_rsassa_pss_sign mbedtls_rsa_rsassa_pss_sign +#define rsa_rsassa_pss_verify mbedtls_rsa_rsassa_pss_verify +#define rsa_rsassa_pss_verify_ext mbedtls_rsa_rsassa_pss_verify_ext +#define rsa_self_test mbedtls_rsa_self_test +#define rsa_set_padding mbedtls_rsa_set_padding +#define rsa_sign_func mbedtls_rsa_sign_func +#define safer_memcmp mbedtls_ssl_safer_memcmp +#define set_alarm mbedtls_set_alarm +#define sha1 mbedtls_sha1 +#define sha1_context mbedtls_sha1_context +#define sha1_file mbedtls_sha1_file +#define sha1_finish mbedtls_sha1_finish +#define sha1_free mbedtls_sha1_free +#define sha1_hmac mbedtls_sha1_hmac +#define sha1_hmac_finish mbedtls_sha1_hmac_finish +#define sha1_hmac_reset mbedtls_sha1_hmac_reset +#define sha1_hmac_starts mbedtls_sha1_hmac_starts +#define sha1_hmac_update mbedtls_sha1_hmac_update +#define sha1_info mbedtls_sha1_info +#define sha1_init mbedtls_sha1_init +#define sha1_process mbedtls_sha1_process +#define sha1_self_test mbedtls_sha1_self_test +#define sha1_starts mbedtls_sha1_starts +#define sha1_update mbedtls_sha1_update +#define sha224_info mbedtls_sha224_info +#define sha256 mbedtls_sha256 +#define sha256_context mbedtls_sha256_context +#define sha256_file mbedtls_sha256_file +#define sha256_finish mbedtls_sha256_finish +#define sha256_free mbedtls_sha256_free +#define sha256_hmac mbedtls_sha256_hmac +#define sha256_hmac_finish mbedtls_sha256_hmac_finish +#define sha256_hmac_reset mbedtls_sha256_hmac_reset +#define sha256_hmac_starts mbedtls_sha256_hmac_starts +#define sha256_hmac_update mbedtls_sha256_hmac_update +#define sha256_info mbedtls_sha256_info +#define sha256_init mbedtls_sha256_init +#define sha256_process mbedtls_sha256_process +#define sha256_self_test mbedtls_sha256_self_test +#define sha256_starts mbedtls_sha256_starts +#define sha256_update mbedtls_sha256_update +#define sha384_info mbedtls_sha384_info +#define sha512 mbedtls_sha512 +#define sha512_context mbedtls_sha512_context +#define sha512_file mbedtls_sha512_file +#define sha512_finish mbedtls_sha512_finish +#define sha512_free mbedtls_sha512_free +#define sha512_hmac mbedtls_sha512_hmac +#define sha512_hmac_finish mbedtls_sha512_hmac_finish +#define sha512_hmac_reset mbedtls_sha512_hmac_reset +#define sha512_hmac_starts mbedtls_sha512_hmac_starts +#define sha512_hmac_update mbedtls_sha512_hmac_update +#define sha512_info mbedtls_sha512_info +#define sha512_init mbedtls_sha512_init +#define sha512_process mbedtls_sha512_process +#define sha512_self_test mbedtls_sha512_self_test +#define sha512_starts mbedtls_sha512_starts +#define sha512_update mbedtls_sha512_update +#define source_state mbedtls_entropy_source_state +#define ssl_cache_context mbedtls_ssl_cache_context +#define ssl_cache_entry mbedtls_ssl_cache_entry +#define ssl_cache_free mbedtls_ssl_cache_free +#define ssl_cache_get mbedtls_ssl_cache_get +#define ssl_cache_init mbedtls_ssl_cache_init +#define ssl_cache_set mbedtls_ssl_cache_set +#define ssl_cache_set_max_entries mbedtls_ssl_cache_set_max_entries +#define ssl_cache_set_timeout mbedtls_ssl_cache_set_timeout +#define ssl_check_cert_usage mbedtls_ssl_check_cert_usage +#define ssl_ciphersuite_from_id mbedtls_ssl_ciphersuite_from_id +#define ssl_ciphersuite_from_string mbedtls_ssl_ciphersuite_from_string +#define ssl_ciphersuite_t mbedtls_ssl_ciphersuite_t +#define ssl_ciphersuite_uses_ec mbedtls_ssl_ciphersuite_uses_ec +#define ssl_ciphersuite_uses_psk mbedtls_ssl_ciphersuite_uses_psk +#define ssl_close_notify mbedtls_ssl_close_notify +#define ssl_context mbedtls_ssl_context +#define ssl_cookie_check mbedtls_ssl_cookie_check +#define ssl_cookie_check_t mbedtls_ssl_cookie_check_t +#define ssl_cookie_ctx mbedtls_ssl_cookie_ctx +#define ssl_cookie_free mbedtls_ssl_cookie_free +#define ssl_cookie_init mbedtls_ssl_cookie_init +#define ssl_cookie_set_timeout mbedtls_ssl_cookie_set_timeout +#define ssl_cookie_setup mbedtls_ssl_cookie_setup +#define ssl_cookie_write mbedtls_ssl_cookie_write +#define ssl_cookie_write_t mbedtls_ssl_cookie_write_t +#define ssl_curve_is_acceptable mbedtls_ssl_curve_is_acceptable +#define ssl_derive_keys mbedtls_ssl_derive_keys +#define ssl_dtls_replay_check mbedtls_ssl_dtls_replay_check +#define ssl_dtls_replay_update mbedtls_ssl_dtls_replay_update +#define ssl_fetch_input mbedtls_ssl_fetch_input +#define ssl_flight_item mbedtls_ssl_flight_item +#define ssl_flush_output mbedtls_ssl_flush_output +#define ssl_free mbedtls_ssl_free +#define ssl_get_alpn_protocol mbedtls_ssl_get_alpn_protocol +#define ssl_get_bytes_avail mbedtls_ssl_get_bytes_avail +#define ssl_get_ciphersuite mbedtls_ssl_get_ciphersuite +#define ssl_get_ciphersuite_id mbedtls_ssl_get_ciphersuite_id +#define ssl_get_ciphersuite_name mbedtls_ssl_get_ciphersuite_name +#define ssl_get_ciphersuite_sig_pk_alg mbedtls_ssl_get_ciphersuite_sig_pk_alg +#define ssl_get_peer_cert mbedtls_ssl_get_peer_cert +#define ssl_get_record_expansion mbedtls_ssl_get_record_expansion +#define ssl_get_session mbedtls_ssl_get_session +#define ssl_get_verify_result mbedtls_ssl_get_verify_result +#define ssl_get_version mbedtls_ssl_get_version +#define ssl_handshake mbedtls_ssl_handshake +#define ssl_handshake_client_step mbedtls_ssl_handshake_client_step +#define ssl_handshake_free mbedtls_ssl_handshake_free +#define ssl_handshake_params mbedtls_ssl_handshake_params +#define ssl_handshake_server_step mbedtls_ssl_handshake_server_step +#define ssl_handshake_step mbedtls_ssl_handshake_step +#define ssl_handshake_wrapup mbedtls_ssl_handshake_wrapup +#define ssl_hdr_len mbedtls_ssl_hdr_len +#define ssl_hs_hdr_len mbedtls_ssl_hs_hdr_len +#define ssl_hw_record_activate mbedtls_ssl_hw_record_activate +#define ssl_hw_record_finish mbedtls_ssl_hw_record_finish +#define ssl_hw_record_init mbedtls_ssl_hw_record_init +#define ssl_hw_record_read mbedtls_ssl_hw_record_read +#define ssl_hw_record_reset mbedtls_ssl_hw_record_reset +#define ssl_hw_record_write mbedtls_ssl_hw_record_write +#define ssl_init mbedtls_ssl_init +#define ssl_key_cert mbedtls_ssl_key_cert +#define ssl_legacy_renegotiation mbedtls_ssl_conf_legacy_renegotiation +#define ssl_list_ciphersuites mbedtls_ssl_list_ciphersuites +#define ssl_md_alg_from_hash mbedtls_ssl_md_alg_from_hash +#define ssl_optimize_checksum mbedtls_ssl_optimize_checksum +#define ssl_own_cert mbedtls_ssl_own_cert +#define ssl_own_key mbedtls_ssl_own_key +#define ssl_parse_certificate mbedtls_ssl_parse_certificate +#define ssl_parse_change_cipher_spec mbedtls_ssl_parse_change_cipher_spec +#define ssl_parse_finished mbedtls_ssl_parse_finished +#define ssl_pk_alg_from_sig mbedtls_ssl_pk_alg_from_sig +#define ssl_pkcs11_decrypt mbedtls_ssl_pkcs11_decrypt +#define ssl_pkcs11_key_len mbedtls_ssl_pkcs11_key_len +#define ssl_pkcs11_sign mbedtls_ssl_pkcs11_sign +#define ssl_psk_derive_premaster mbedtls_ssl_psk_derive_premaster +#define ssl_read mbedtls_ssl_read +#define ssl_read_record mbedtls_ssl_read_record +#define ssl_read_version mbedtls_ssl_read_version +#define ssl_recv_flight_completed mbedtls_ssl_recv_flight_completed +#define ssl_renegotiate mbedtls_ssl_renegotiate +#define ssl_resend mbedtls_ssl_resend +#define ssl_reset_checksum mbedtls_ssl_reset_checksum +#define ssl_send_alert_message mbedtls_ssl_send_alert_message +#define ssl_send_fatal_handshake_failure mbedtls_ssl_send_fatal_handshake_failure +#define ssl_send_flight_completed mbedtls_ssl_send_flight_completed +#define ssl_session mbedtls_ssl_session +#define ssl_session_free mbedtls_ssl_session_free +#define ssl_session_init mbedtls_ssl_session_init +#define ssl_session_reset mbedtls_ssl_session_reset +#define ssl_set_alpn_protocols mbedtls_ssl_conf_alpn_protocols +#define ssl_set_arc4_support mbedtls_ssl_conf_arc4_support +#define ssl_set_authmode mbedtls_ssl_conf_authmode +#define ssl_set_bio mbedtls_ssl_set_bio +#define ssl_set_bio mbedtls_ssl_set_bio_timeout +#define ssl_set_ca_chain mbedtls_ssl_conf_ca_chain +#define ssl_set_cbc_record_splitting mbedtls_ssl_conf_cbc_record_splitting +#define ssl_set_ciphersuites mbedtls_ssl_conf_ciphersuites +#define ssl_set_ciphersuites_for_version mbedtls_ssl_conf_ciphersuites_for_version +#define ssl_set_client_transport_id mbedtls_ssl_set_client_transport_id +#define ssl_set_curves mbedtls_ssl_conf_curves +#define ssl_set_dbg mbedtls_ssl_conf_dbg +#define ssl_set_dh_param mbedtls_ssl_conf_dh_param +#define ssl_set_dh_param_ctx mbedtls_ssl_conf_dh_param_ctx +#define ssl_set_dtls_anti_replay mbedtls_ssl_conf_dtls_anti_replay +#define ssl_set_dtls_badmac_limit mbedtls_ssl_conf_dtls_badmac_limit +#define ssl_set_dtls_cookies mbedtls_ssl_conf_dtls_cookies +#define ssl_set_encrypt_then_mac mbedtls_ssl_conf_encrypt_then_mac +#define ssl_set_endpoint mbedtls_ssl_conf_endpoint +#define ssl_set_extended_master_secret mbedtls_ssl_conf_extended_master_secret +#define ssl_set_fallback mbedtls_ssl_conf_fallback +#define ssl_set_handshake_timeout mbedtls_ssl_conf_handshake_timeout +#define ssl_set_hostname mbedtls_ssl_set_hostname +#define ssl_set_max_frag_len mbedtls_ssl_conf_max_frag_len +#define ssl_set_max_version mbedtls_ssl_conf_max_version +#define ssl_set_min_version mbedtls_ssl_conf_min_version +#define ssl_set_own_cert mbedtls_ssl_conf_own_cert +#define ssl_set_own_cert_alt mbedtls_ssl_set_own_cert_alt +#define ssl_set_own_cert_rsa mbedtls_ssl_set_own_cert_rsa +#define ssl_set_psk mbedtls_ssl_conf_psk +#define ssl_set_psk_cb mbedtls_ssl_conf_psk_cb +#define ssl_set_renegotiation mbedtls_ssl_conf_renegotiation +#define ssl_set_renegotiation_enforced mbedtls_ssl_conf_renegotiation_enforced +#define ssl_set_renegotiation_period mbedtls_ssl_conf_renegotiation_period +#define ssl_set_rng mbedtls_ssl_conf_rng +#define ssl_set_session mbedtls_ssl_set_session +#define ssl_set_session_cache mbedtls_ssl_conf_session_cache +#define ssl_set_session_ticket_lifetime mbedtls_ssl_conf_session_ticket_lifetime +#define ssl_set_session_tickets mbedtls_ssl_conf_session_tickets +#define ssl_set_sni mbedtls_ssl_conf_sni +#define ssl_set_transport mbedtls_ssl_conf_transport +#define ssl_set_truncated_hmac mbedtls_ssl_conf_truncated_hmac +#define ssl_set_verify mbedtls_ssl_conf_verify +#define ssl_sig_from_pk mbedtls_ssl_sig_from_pk +#define ssl_states mbedtls_ssl_states +#define ssl_ticket_keys mbedtls_ssl_ticket_keys +#define ssl_transform mbedtls_ssl_transform +#define ssl_transform_free mbedtls_ssl_transform_free +#define ssl_write mbedtls_ssl_write +#define ssl_write_certificate mbedtls_ssl_write_certificate +#define ssl_write_change_cipher_spec mbedtls_ssl_write_change_cipher_spec +#define ssl_write_finished mbedtls_ssl_write_finished +#define ssl_write_record mbedtls_ssl_write_record +#define ssl_write_version mbedtls_ssl_write_version +#define supported_ciphers mbedtls_cipher_supported +#define t_sint mbedtls_mpi_sint +#define t_udbl mbedtls_t_udbl +#define t_uint mbedtls_mpi_uint +#define test_ca_crt mbedtls_test_ca_crt +#define test_ca_crt_ec mbedtls_test_ca_crt_ec +#define test_ca_crt_rsa mbedtls_test_ca_crt_rsa +#define test_ca_key mbedtls_test_ca_key +#define test_ca_key_ec mbedtls_test_ca_key_ec +#define test_ca_key_rsa mbedtls_test_ca_key_rsa +#define test_ca_list mbedtls_test_cas_pem +#define test_ca_pwd mbedtls_test_ca_pwd +#define test_ca_pwd_ec mbedtls_test_ca_pwd_ec +#define test_ca_pwd_rsa mbedtls_test_ca_pwd_rsa +#define test_cli_crt mbedtls_test_cli_crt +#define test_cli_crt_ec mbedtls_test_cli_crt_ec +#define test_cli_crt_rsa mbedtls_test_cli_crt_rsa +#define test_cli_key mbedtls_test_cli_key +#define test_cli_key_ec mbedtls_test_cli_key_ec +#define test_cli_key_rsa mbedtls_test_cli_key_rsa +#define test_dhm_params mbedtls_test_dhm_params +#define test_srv_crt mbedtls_test_srv_crt +#define test_srv_crt_ec mbedtls_test_srv_crt_ec +#define test_srv_crt_rsa mbedtls_test_srv_crt_rsa +#define test_srv_key mbedtls_test_srv_key +#define test_srv_key_ec mbedtls_test_srv_key_ec +#define test_srv_key_rsa mbedtls_test_srv_key_rsa +#define threading_mutex_t mbedtls_threading_mutex_t +#define threading_set_alt mbedtls_threading_set_alt +#define timing_self_test mbedtls_timing_self_test +#define version_check_feature mbedtls_version_check_feature +#define version_get_number mbedtls_version_get_number +#define version_get_string mbedtls_version_get_string +#define version_get_string_full mbedtls_version_get_string_full +#define x509_bitstring mbedtls_x509_bitstring +#define x509_buf mbedtls_x509_buf +#define x509_crl mbedtls_x509_crl +#define x509_crl_entry mbedtls_x509_crl_entry +#define x509_crl_free mbedtls_x509_crl_free +#define x509_crl_info mbedtls_x509_crl_info +#define x509_crl_init mbedtls_x509_crl_init +#define x509_crl_parse mbedtls_x509_crl_parse +#define x509_crl_parse_der mbedtls_x509_crl_parse_der +#define x509_crl_parse_file mbedtls_x509_crl_parse_file +#define x509_crt mbedtls_x509_crt +#define x509_crt_check_extended_key_usage mbedtls_x509_crt_check_extended_key_usage +#define x509_crt_check_key_usage mbedtls_x509_crt_check_key_usage +#define x509_crt_free mbedtls_x509_crt_free +#define x509_crt_info mbedtls_x509_crt_info +#define x509_crt_init mbedtls_x509_crt_init +#define x509_crt_parse mbedtls_x509_crt_parse +#define x509_crt_parse_der mbedtls_x509_crt_parse_der +#define x509_crt_parse_file mbedtls_x509_crt_parse_file +#define x509_crt_parse_path mbedtls_x509_crt_parse_path +#define x509_crt_revoked mbedtls_x509_crt_is_revoked +#define x509_crt_verify mbedtls_x509_crt_verify +#define x509_csr mbedtls_x509_csr +#define x509_csr_free mbedtls_x509_csr_free +#define x509_csr_info mbedtls_x509_csr_info +#define x509_csr_init mbedtls_x509_csr_init +#define x509_csr_parse mbedtls_x509_csr_parse +#define x509_csr_parse_der mbedtls_x509_csr_parse_der +#define x509_csr_parse_file mbedtls_x509_csr_parse_file +#define x509_dn_gets mbedtls_x509_dn_gets +#define x509_get_alg mbedtls_x509_get_alg +#define x509_get_alg_null mbedtls_x509_get_alg_null +#define x509_get_ext mbedtls_x509_get_ext +#define x509_get_name mbedtls_x509_get_name +#define x509_get_rsassa_pss_params mbedtls_x509_get_rsassa_pss_params +#define x509_get_serial mbedtls_x509_get_serial +#define x509_get_sig mbedtls_x509_get_sig +#define x509_get_sig_alg mbedtls_x509_get_sig_alg +#define x509_get_time mbedtls_x509_get_time +#define x509_key_size_helper mbedtls_x509_key_size_helper +#define x509_name mbedtls_x509_name +#define x509_oid_get_description mbedtls_x509_oid_get_description +#define x509_oid_get_numeric_string mbedtls_x509_oid_get_numeric_string +#define x509_self_test mbedtls_x509_self_test +#define x509_sequence mbedtls_x509_sequence +#define x509_serial_gets mbedtls_x509_serial_gets +#define x509_set_extension mbedtls_x509_set_extension +#define x509_sig_alg_gets mbedtls_x509_sig_alg_gets +#define x509_string_to_names mbedtls_x509_string_to_names +#define x509_time mbedtls_x509_time +#define x509_time_expired mbedtls_x509_time_is_past +#define x509_time_future mbedtls_x509_time_is_future +#define x509_write_extensions mbedtls_x509_write_extensions +#define x509_write_names mbedtls_x509_write_names +#define x509_write_sig mbedtls_x509_write_sig +#define x509write_cert mbedtls_x509write_cert +#define x509write_crt_der mbedtls_x509write_crt_der +#define x509write_crt_free mbedtls_x509write_crt_free +#define x509write_crt_init mbedtls_x509write_crt_init +#define x509write_crt_pem mbedtls_x509write_crt_pem +#define x509write_crt_set_authority_key_identifier mbedtls_x509write_crt_set_authority_key_identifier +#define x509write_crt_set_basic_constraints mbedtls_x509write_crt_set_basic_constraints +#define x509write_crt_set_extension mbedtls_x509write_crt_set_extension +#define x509write_crt_set_issuer_key mbedtls_x509write_crt_set_issuer_key +#define x509write_crt_set_issuer_name mbedtls_x509write_crt_set_issuer_name +#define x509write_crt_set_key_usage mbedtls_x509write_crt_set_key_usage +#define x509write_crt_set_md_alg mbedtls_x509write_crt_set_md_alg +#define x509write_crt_set_ns_cert_type mbedtls_x509write_crt_set_ns_cert_type +#define x509write_crt_set_serial mbedtls_x509write_crt_set_serial +#define x509write_crt_set_subject_key mbedtls_x509write_crt_set_subject_key +#define x509write_crt_set_subject_key_identifier mbedtls_x509write_crt_set_subject_key_identifier +#define x509write_crt_set_subject_name mbedtls_x509write_crt_set_subject_name +#define x509write_crt_set_validity mbedtls_x509write_crt_set_validity +#define x509write_crt_set_version mbedtls_x509write_crt_set_version +#define x509write_csr mbedtls_x509write_csr +#define x509write_csr_der mbedtls_x509write_csr_der +#define x509write_csr_free mbedtls_x509write_csr_free +#define x509write_csr_init mbedtls_x509write_csr_init +#define x509write_csr_pem mbedtls_x509write_csr_pem +#define x509write_csr_set_extension mbedtls_x509write_csr_set_extension +#define x509write_csr_set_key mbedtls_x509write_csr_set_key +#define x509write_csr_set_key_usage mbedtls_x509write_csr_set_key_usage +#define x509write_csr_set_md_alg mbedtls_x509write_csr_set_md_alg +#define x509write_csr_set_ns_cert_type mbedtls_x509write_csr_set_ns_cert_type +#define x509write_csr_set_subject_name mbedtls_x509write_csr_set_subject_name +#define xtea_context mbedtls_xtea_context +#define xtea_crypt_cbc mbedtls_xtea_crypt_cbc +#define xtea_crypt_ecb mbedtls_xtea_crypt_ecb +#define xtea_free mbedtls_xtea_free +#define xtea_init mbedtls_xtea_init +#define xtea_self_test mbedtls_xtea_self_test +#define xtea_setup mbedtls_xtea_setup + +#endif /* compat-1.3.h */ +#endif /* MBEDTLS_DEPRECATED_REMOVED */ diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h new file mode 100644 index 0000000..6fc9c77 --- /dev/null +++ b/include/mbedtls/config.h @@ -0,0 +1,2600 @@ +/** + * \file config.h + * + * \brief Configuration options (set of defines) + * + * This set of compile-time options may be used to enable + * or disable features selectively, and reduce the global + * memory footprint. + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#ifndef MBEDTLS_CONFIG_H +#define MBEDTLS_CONFIG_H + +#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE) +#define _CRT_SECURE_NO_DEPRECATE 1 +#endif + +/** + * \name SECTION: System support + * + * This section sets system specific settings. + * \{ + */ + +/** + * \def MBEDTLS_HAVE_ASM + * + * The compiler has support for asm(). + * + * Requires support for asm() in compiler. + * + * Used in: + * library/timing.c + * library/padlock.c + * include/mbedtls/bn_mul.h + * + * Comment to disable the use of assembly code. + */ +#define MBEDTLS_HAVE_ASM + +/** + * \def MBEDTLS_HAVE_SSE2 + * + * CPU supports SSE2 instruction set. + * + * Uncomment if the CPU supports SSE2 (IA-32 specific). + */ +//#define MBEDTLS_HAVE_SSE2 + +/** + * \def MBEDTLS_HAVE_TIME + * + * System has time.h and time(). + * The time does not need to be correct, only time differences are used, + * by contrast with MBEDTLS_HAVE_TIME_DATE + * + * Defining MBEDTLS_HAVE_TIME allows you to specify MBEDTLS_PLATFORM_TIME_ALT, + * MBEDTLS_PLATFORM_TIME_MACRO, MBEDTLS_PLATFORM_TIME_TYPE_MACRO and + * MBEDTLS_PLATFORM_STD_TIME. + * + * Comment if your system does not support time functions + */ +#define MBEDTLS_HAVE_TIME + +/** + * \def MBEDTLS_HAVE_TIME_DATE + * + * System has time.h and time(), gmtime() and the clock is correct. + * The time needs to be correct (not necesarily very accurate, but at least + * the date should be correct). This is used to verify the validity period of + * X.509 certificates. + * + * Comment if your system does not have a correct clock. + */ +#define MBEDTLS_HAVE_TIME_DATE + +/** + * \def MBEDTLS_PLATFORM_MEMORY + * + * Enable the memory allocation layer. + * + * By default mbed TLS uses the system-provided calloc() and free(). + * This allows different allocators (self-implemented or provided) to be + * provided to the platform abstraction layer. + * + * Enabling MBEDTLS_PLATFORM_MEMORY without the + * MBEDTLS_PLATFORM_{FREE,CALLOC}_MACROs will provide + * "mbedtls_platform_set_calloc_free()" allowing you to set an alternative calloc() and + * free() function pointer at runtime. + * + * Enabling MBEDTLS_PLATFORM_MEMORY and specifying + * MBEDTLS_PLATFORM_{CALLOC,FREE}_MACROs will allow you to specify the + * alternate function at compile time. + * + * Requires: MBEDTLS_PLATFORM_C + * + * Enable this layer to allow use of alternative memory allocators. + */ +//#define MBEDTLS_PLATFORM_MEMORY + +/** + * \def MBEDTLS_PLATFORM_NO_STD_FUNCTIONS + * + * Do not assign standard functions in the platform layer (e.g. calloc() to + * MBEDTLS_PLATFORM_STD_CALLOC and printf() to MBEDTLS_PLATFORM_STD_PRINTF) + * + * This makes sure there are no linking errors on platforms that do not support + * these functions. You will HAVE to provide alternatives, either at runtime + * via the platform_set_xxx() functions or at compile time by setting + * the MBEDTLS_PLATFORM_STD_XXX defines, or enabling a + * MBEDTLS_PLATFORM_XXX_MACRO. + * + * Requires: MBEDTLS_PLATFORM_C + * + * Uncomment to prevent default assignment of standard functions in the + * platform layer. + */ +//#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS + +/** + * \def MBEDTLS_PLATFORM_EXIT_ALT + * + * MBEDTLS_PLATFORM_XXX_ALT: Uncomment a macro to let mbed TLS support the + * function in the platform abstraction layer. + * + * Example: In case you uncomment MBEDTLS_PLATFORM_PRINTF_ALT, mbed TLS will + * provide a function "mbedtls_platform_set_printf()" that allows you to set an + * alternative printf function pointer. + * + * All these define require MBEDTLS_PLATFORM_C to be defined! + * + * \note MBEDTLS_PLATFORM_SNPRINTF_ALT is required on Windows; + * it will be enabled automatically by check_config.h + * + * \warning MBEDTLS_PLATFORM_XXX_ALT cannot be defined at the same time as + * MBEDTLS_PLATFORM_XXX_MACRO! + * + * Requires: MBEDTLS_PLATFORM_TIME_ALT requires MBEDTLS_HAVE_TIME + * + * Uncomment a macro to enable alternate implementation of specific base + * platform function + */ +//#define MBEDTLS_PLATFORM_EXIT_ALT +//#define MBEDTLS_PLATFORM_TIME_ALT +//#define MBEDTLS_PLATFORM_FPRINTF_ALT +//#define MBEDTLS_PLATFORM_PRINTF_ALT +//#define MBEDTLS_PLATFORM_SNPRINTF_ALT +//#define MBEDTLS_PLATFORM_NV_SEED_ALT + +/** + * \def MBEDTLS_DEPRECATED_WARNING + * + * Mark deprecated functions so that they generate a warning if used. + * Functions deprecated in one version will usually be removed in the next + * version. You can enable this to help you prepare the transition to a new + * major version by making sure your code is not using these functions. + * + * This only works with GCC and Clang. With other compilers, you may want to + * use MBEDTLS_DEPRECATED_REMOVED + * + * Uncomment to get warnings on using deprecated functions. + */ +//#define MBEDTLS_DEPRECATED_WARNING + +/** + * \def MBEDTLS_DEPRECATED_REMOVED + * + * Remove deprecated functions so that they generate an error if used. + * Functions deprecated in one version will usually be removed in the next + * version. You can enable this to help you prepare the transition to a new + * major version by making sure your code is not using these functions. + * + * Uncomment to get errors on using deprecated functions. + */ +//#define MBEDTLS_DEPRECATED_REMOVED + +/* \} name SECTION: System support */ + +/** + * \name SECTION: mbed TLS feature support + * + * This section sets support for features that are or are not needed + * within the modules that are enabled. + * \{ + */ + +/** + * \def MBEDTLS_TIMING_ALT + * + * Uncomment to provide your own alternate implementation for mbedtls_timing_hardclock(), + * mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay() + * + * Only works if you have MBEDTLS_TIMING_C enabled. + * + * You will need to provide a header "timing_alt.h" and an implementation at + * compile time. + */ +//#define MBEDTLS_TIMING_ALT + +/** + * \def MBEDTLS_AES_ALT + * + * MBEDTLS__MODULE_NAME__ALT: Uncomment a macro to let mbed TLS use your + * alternate core implementation of a symmetric crypto or hash module (e.g. + * platform specific assembly optimized implementations). Keep in mind that + * the function prototypes should remain the same. + * + * This replaces the whole module. If you only want to replace one of the + * functions, use one of the MBEDTLS__FUNCTION_NAME__ALT flags. + * + * Example: In case you uncomment MBEDTLS_AES_ALT, mbed TLS will no longer + * provide the "struct mbedtls_aes_context" definition and omit the base function + * declarations and implementations. "aes_alt.h" will be included from + * "aes.h" to include the new function definitions. + * + * Uncomment a macro to enable alternate implementation of the corresponding + * module. + */ +//#define MBEDTLS_AES_ALT +//#define MBEDTLS_ARC4_ALT +//#define MBEDTLS_BLOWFISH_ALT +//#define MBEDTLS_CAMELLIA_ALT +//#define MBEDTLS_DES_ALT +//#define MBEDTLS_XTEA_ALT +//#define MBEDTLS_MD2_ALT +//#define MBEDTLS_MD4_ALT +//#define MBEDTLS_MD5_ALT +//#define MBEDTLS_RIPEMD160_ALT +//#define MBEDTLS_SHA1_ALT +//#define MBEDTLS_SHA256_ALT +//#define MBEDTLS_SHA512_ALT + +/** + * \def MBEDTLS_MD2_PROCESS_ALT + * + * MBEDTLS__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use you + * alternate core implementation of symmetric crypto or hash function. Keep in + * mind that function prototypes should remain the same. + * + * This replaces only one function. The header file from mbed TLS is still + * used, in contrast to the MBEDTLS__MODULE_NAME__ALT flags. + * + * Example: In case you uncomment MBEDTLS_SHA256_PROCESS_ALT, mbed TLS will + * no longer provide the mbedtls_sha1_process() function, but it will still provide + * the other function (using your mbedtls_sha1_process() function) and the definition + * of mbedtls_sha1_context, so your implementation of mbedtls_sha1_process must be compatible + * with this definition. + * + * Note: if you use the AES_xxx_ALT macros, then is is recommended to also set + * MBEDTLS_AES_ROM_TABLES in order to help the linker garbage-collect the AES + * tables. + * + * Uncomment a macro to enable alternate implementation of the corresponding + * function. + */ +//#define MBEDTLS_MD2_PROCESS_ALT +//#define MBEDTLS_MD4_PROCESS_ALT +//#define MBEDTLS_MD5_PROCESS_ALT +//#define MBEDTLS_RIPEMD160_PROCESS_ALT +//#define MBEDTLS_SHA1_PROCESS_ALT +//#define MBEDTLS_SHA256_PROCESS_ALT +//#define MBEDTLS_SHA512_PROCESS_ALT +//#define MBEDTLS_DES_SETKEY_ALT +//#define MBEDTLS_DES_CRYPT_ECB_ALT +//#define MBEDTLS_DES3_CRYPT_ECB_ALT +//#define MBEDTLS_AES_SETKEY_ENC_ALT +//#define MBEDTLS_AES_SETKEY_DEC_ALT +//#define MBEDTLS_AES_ENCRYPT_ALT +//#define MBEDTLS_AES_DECRYPT_ALT + +/** + * \def MBEDTLS_TEST_NULL_ENTROPY + * + * Enables testing and use of mbed TLS without any configured entropy sources. + * This permits use of the library on platforms before an entropy source has + * been integrated (see for example the MBEDTLS_ENTROPY_HARDWARE_ALT or the + * MBEDTLS_ENTROPY_NV_SEED switches). + * + * WARNING! This switch MUST be disabled in production builds, and is suitable + * only for development. + * Enabling the switch negates any security provided by the library. + * + * Requires MBEDTLS_ENTROPY_C, MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES + * + */ +//#define MBEDTLS_TEST_NULL_ENTROPY + +/** + * \def MBEDTLS_ENTROPY_HARDWARE_ALT + * + * Uncomment this macro to let mbed TLS use your own implementation of a + * hardware entropy collector. + * + * Your function must be called \c mbedtls_hardware_poll(), have the same + * prototype as declared in entropy_poll.h, and accept NULL as first argument. + * + * Uncomment to use your own hardware entropy collector. + */ +//#define MBEDTLS_ENTROPY_HARDWARE_ALT + +/** + * \def MBEDTLS_AES_ROM_TABLES + * + * Store the AES tables in ROM. + * + * Uncomment this macro to store the AES tables in ROM. + */ +//#define MBEDTLS_AES_ROM_TABLES + +/** + * \def MBEDTLS_CAMELLIA_SMALL_MEMORY + * + * Use less ROM for the Camellia implementation (saves about 768 bytes). + * + * Uncomment this macro to use less memory for Camellia. + */ +//#define MBEDTLS_CAMELLIA_SMALL_MEMORY + +/** + * \def MBEDTLS_CIPHER_MODE_CBC + * + * Enable Cipher Block Chaining mode (CBC) for symmetric ciphers. + */ +#define MBEDTLS_CIPHER_MODE_CBC + +/** + * \def MBEDTLS_CIPHER_MODE_CFB + * + * Enable Cipher Feedback mode (CFB) for symmetric ciphers. + */ +#define MBEDTLS_CIPHER_MODE_CFB + +/** + * \def MBEDTLS_CIPHER_MODE_CTR + * + * Enable Counter Block Cipher mode (CTR) for symmetric ciphers. + */ +#define MBEDTLS_CIPHER_MODE_CTR + +/** + * \def MBEDTLS_CIPHER_NULL_CIPHER + * + * Enable NULL cipher. + * Warning: Only do so when you know what you are doing. This allows for + * encryption or channels without any security! + * + * Requires MBEDTLS_ENABLE_WEAK_CIPHERSUITES as well to enable + * the following ciphersuites: + * MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA + * MBEDTLS_TLS_RSA_WITH_NULL_SHA256 + * MBEDTLS_TLS_RSA_WITH_NULL_SHA + * MBEDTLS_TLS_RSA_WITH_NULL_MD5 + * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA + * MBEDTLS_TLS_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_PSK_WITH_NULL_SHA + * + * Uncomment this macro to enable the NULL cipher and ciphersuites + */ +//#define MBEDTLS_CIPHER_NULL_CIPHER + +/** + * \def MBEDTLS_CIPHER_PADDING_PKCS7 + * + * MBEDTLS_CIPHER_PADDING_XXX: Uncomment or comment macros to add support for + * specific padding modes in the cipher layer with cipher modes that support + * padding (e.g. CBC) + * + * If you disable all padding modes, only full blocks can be used with CBC. + * + * Enable padding modes in the cipher layer. + */ +#define MBEDTLS_CIPHER_PADDING_PKCS7 +#define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS +#define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN +#define MBEDTLS_CIPHER_PADDING_ZEROS + +/** + * \def MBEDTLS_ENABLE_WEAK_CIPHERSUITES + * + * Enable weak ciphersuites in SSL / TLS. + * Warning: Only do so when you know what you are doing. This allows for + * channels with virtually no security at all! + * + * This enables the following ciphersuites: + * MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA + * + * Uncomment this macro to enable weak ciphersuites + */ +//#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES + +/** + * \def MBEDTLS_REMOVE_ARC4_CIPHERSUITES + * + * Remove RC4 ciphersuites by default in SSL / TLS. + * This flag removes the ciphersuites based on RC4 from the default list as + * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible to + * enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including them + * explicitly. + * + * Uncomment this macro to remove RC4 ciphersuites by default. + */ +#define MBEDTLS_REMOVE_ARC4_CIPHERSUITES + +/** + * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED + * + * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve + * module. By default all supported curves are enabled. + * + * Comment macros to disable the curve and functions for it + */ +#define MBEDTLS_ECP_DP_SECP192R1_ENABLED +#define MBEDTLS_ECP_DP_SECP224R1_ENABLED +#define MBEDTLS_ECP_DP_SECP256R1_ENABLED +#define MBEDTLS_ECP_DP_SECP384R1_ENABLED +#define MBEDTLS_ECP_DP_SECP521R1_ENABLED +#define MBEDTLS_ECP_DP_SECP192K1_ENABLED +#define MBEDTLS_ECP_DP_SECP224K1_ENABLED +#define MBEDTLS_ECP_DP_SECP256K1_ENABLED +#define MBEDTLS_ECP_DP_BP256R1_ENABLED +#define MBEDTLS_ECP_DP_BP384R1_ENABLED +#define MBEDTLS_ECP_DP_BP512R1_ENABLED +#define MBEDTLS_ECP_DP_CURVE25519_ENABLED + +/** + * \def MBEDTLS_ECP_NIST_OPTIM + * + * Enable specific 'modulo p' routines for each NIST prime. + * Depending on the prime and architecture, makes operations 4 to 8 times + * faster on the corresponding curve. + * + * Comment this macro to disable NIST curves optimisation. + */ +#define MBEDTLS_ECP_NIST_OPTIM + +/** + * \def MBEDTLS_ECDSA_DETERMINISTIC + * + * Enable deterministic ECDSA (RFC 6979). + * Standard ECDSA is "fragile" in the sense that lack of entropy when signing + * may result in a compromise of the long-term signing key. This is avoided by + * the deterministic variant. + * + * Requires: MBEDTLS_HMAC_DRBG_C + * + * Comment this macro to disable deterministic ECDSA. + */ +#define MBEDTLS_ECDSA_DETERMINISTIC + +/** + * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED + * + * Enable the PSK based ciphersuite modes in SSL / TLS. + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_RC4_128_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED + * + * Enable the DHE-PSK based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_DHM_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED + * + * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED + * + * Enable the RSA-PSK based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED + * + * Enable the RSA-only based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_RSA_WITH_RC4_128_MD5 + */ +#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED + * + * Enable the DHE-RSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED + * + * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED + * + * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C, + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED + * + * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + */ +#define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED + * + * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 + */ +#define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED + * + * Enable the ECJPAKE based ciphersuite modes in SSL / TLS. + * + * \warning This is currently experimental. EC J-PAKE support is based on the + * Thread v1.0.0 specification; incompatible changes to the specification + * might still happen. For this reason, this is disabled by default. + * + * Requires: MBEDTLS_ECJPAKE_C + * MBEDTLS_SHA256_C + * MBEDTLS_ECP_DP_SECP256R1_ENABLED + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8 + */ +//#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED + +/** + * \def MBEDTLS_PK_PARSE_EC_EXTENDED + * + * Enhance support for reading EC keys using variants of SEC1 not allowed by + * RFC 5915 and RFC 5480. + * + * Currently this means parsing the SpecifiedECDomain choice of EC + * parameters (only known groups are supported, not arbitrary domains, to + * avoid validation issues). + * + * Disable if you only need to support RFC 5915 + 5480 key formats. + */ +#define MBEDTLS_PK_PARSE_EC_EXTENDED + +/** + * \def MBEDTLS_ERROR_STRERROR_DUMMY + * + * Enable a dummy error function to make use of mbedtls_strerror() in + * third party libraries easier when MBEDTLS_ERROR_C is disabled + * (no effect when MBEDTLS_ERROR_C is enabled). + * + * You can safely disable this if MBEDTLS_ERROR_C is enabled, or if you're + * not using mbedtls_strerror() or error_strerror() in your application. + * + * Disable if you run into name conflicts and want to really remove the + * mbedtls_strerror() + */ +#define MBEDTLS_ERROR_STRERROR_DUMMY + +/** + * \def MBEDTLS_GENPRIME + * + * Enable the prime-number generation code. + * + * Requires: MBEDTLS_BIGNUM_C + */ +#define MBEDTLS_GENPRIME + +/** + * \def MBEDTLS_FS_IO + * + * Enable functions that use the filesystem. + */ +#define MBEDTLS_FS_IO + +/** + * \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES + * + * Do not add default entropy sources. These are the platform specific, + * mbedtls_timing_hardclock and HAVEGE based poll functions. + * + * This is useful to have more control over the added entropy sources in an + * application. + * + * Uncomment this macro to prevent loading of default entropy functions. + */ +//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES + +/** + * \def MBEDTLS_NO_PLATFORM_ENTROPY + * + * Do not use built-in platform entropy functions. + * This is useful if your platform does not support + * standards like the /dev/urandom or Windows CryptoAPI. + * + * Uncomment this macro to disable the built-in platform entropy functions. + */ +//#define MBEDTLS_NO_PLATFORM_ENTROPY + +/** + * \def MBEDTLS_ENTROPY_FORCE_SHA256 + * + * Force the entropy accumulator to use a SHA-256 accumulator instead of the + * default SHA-512 based one (if both are available). + * + * Requires: MBEDTLS_SHA256_C + * + * On 32-bit systems SHA-256 can be much faster than SHA-512. Use this option + * if you have performance concerns. + * + * This option is only useful if both MBEDTLS_SHA256_C and + * MBEDTLS_SHA512_C are defined. Otherwise the available hash module is used. + */ +//#define MBEDTLS_ENTROPY_FORCE_SHA256 + +/** + * \def MBEDTLS_ENTROPY_NV_SEED + * + * Enable the non-volatile (NV) seed file-based entropy source. + * (Also enables the NV seed read/write functions in the platform layer) + * + * This is crucial (if not required) on systems that do not have a + * cryptographic entropy source (in hardware or kernel) available. + * + * Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C + * + * \note The read/write functions that are used by the entropy source are + * determined in the platform layer, and can be modified at runtime and/or + * compile-time depending on the flags (MBEDTLS_PLATFORM_NV_SEED_*) used. + * + * \note If you use the default implementation functions that read a seedfile + * with regular fopen(), please make sure you make a seedfile with the + * proper name (defined in MBEDTLS_PLATFORM_STD_NV_SEED_FILE) and at + * least MBEDTLS_ENTROPY_BLOCK_SIZE bytes in size that can be read from + * and written to or you will get an entropy source error! The default + * implementation will only use the first MBEDTLS_ENTROPY_BLOCK_SIZE + * bytes from the file. + * + * \note The entropy collector will write to the seed file before entropy is + * given to an external source, to update it. + */ +//#define MBEDTLS_ENTROPY_NV_SEED + +/** + * \def MBEDTLS_MEMORY_DEBUG + * + * Enable debugging of buffer allocator memory issues. Automatically prints + * (to stderr) all (fatal) messages on memory allocation issues. Enables + * function for 'debug output' of allocated memory. + * + * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C + * + * Uncomment this macro to let the buffer allocator print out error messages. + */ +//#define MBEDTLS_MEMORY_DEBUG + +/** + * \def MBEDTLS_MEMORY_BACKTRACE + * + * Include backtrace information with each allocated block. + * + * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C + * GLIBC-compatible backtrace() an backtrace_symbols() support + * + * Uncomment this macro to include backtrace information + */ +//#define MBEDTLS_MEMORY_BACKTRACE + +/** + * \def MBEDTLS_PK_RSA_ALT_SUPPORT + * + * Support external private RSA keys (eg from a HSM) in the PK layer. + * + * Comment this macro to disable support for external private RSA keys. + */ +#define MBEDTLS_PK_RSA_ALT_SUPPORT + +/** + * \def MBEDTLS_PKCS1_V15 + * + * Enable support for PKCS#1 v1.5 encoding. + * + * Requires: MBEDTLS_RSA_C + * + * This enables support for PKCS#1 v1.5 operations. + */ +#define MBEDTLS_PKCS1_V15 + +/** + * \def MBEDTLS_PKCS1_V21 + * + * Enable support for PKCS#1 v2.1 encoding. + * + * Requires: MBEDTLS_MD_C, MBEDTLS_RSA_C + * + * This enables support for RSAES-OAEP and RSASSA-PSS operations. + */ +#define MBEDTLS_PKCS1_V21 + +/** + * \def MBEDTLS_RSA_NO_CRT + * + * Do not use the Chinese Remainder Theorem for the RSA private operation. + * + * Uncomment this macro to disable the use of CRT in RSA. + * + */ +//#define MBEDTLS_RSA_NO_CRT + +/** + * \def MBEDTLS_SELF_TEST + * + * Enable the checkup functions (*_self_test). + */ +#define MBEDTLS_SELF_TEST + +/** + * \def MBEDTLS_SHA256_SMALLER + * + * Enable an implementation of SHA-256 that has lower ROM footprint but also + * lower performance. + * + * The default implementation is meant to be a reasonnable compromise between + * performance and size. This version optimizes more aggressively for size at + * the expense of performance. Eg on Cortex-M4 it reduces the size of + * mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of about + * 30%. + * + * Uncomment to enable the smaller implementation of SHA256. + */ +//#define MBEDTLS_SHA256_SMALLER + +/** + * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES + * + * Enable sending of alert messages in case of encountered errors as per RFC. + * If you choose not to send the alert messages, mbed TLS can still communicate + * with other servers, only debugging of failures is harder. + * + * The advantage of not sending alert messages, is that no information is given + * about reasons for failures thus preventing adversaries of gaining intel. + * + * Enable sending of all alert messages + */ +#define MBEDTLS_SSL_ALL_ALERT_MESSAGES + +/** + * \def MBEDTLS_SSL_DEBUG_ALL + * + * Enable the debug messages in SSL module for all issues. + * Debug messages have been disabled in some places to prevent timing + * attacks due to (unbalanced) debugging function calls. + * + * If you need all error reporting you should enable this during debugging, + * but remove this for production servers that should log as well. + * + * Uncomment this macro to report all debug messages on errors introducing + * a timing side-channel. + * + */ +//#define MBEDTLS_SSL_DEBUG_ALL + +/** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC + * + * Enable support for Encrypt-then-MAC, RFC 7366. + * + * This allows peers that both support it to use a more robust protection for + * ciphersuites using CBC, providing deep resistance against timing attacks + * on the padding or underlying cipher. + * + * This only affects CBC ciphersuites, and is useless if none is defined. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1 or + * MBEDTLS_SSL_PROTO_TLS1_1 or + * MBEDTLS_SSL_PROTO_TLS1_2 + * + * Comment this macro to disable support for Encrypt-then-MAC + */ +#define MBEDTLS_SSL_ENCRYPT_THEN_MAC + +/** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET + * + * Enable support for Extended Master Secret, aka Session Hash + * (draft-ietf-tls-session-hash-02). + * + * This was introduced as "the proper fix" to the Triple Handshake familiy of + * attacks, but it is recommended to always use it (even if you disable + * renegotiation), since it actually fixes a more fundamental issue in the + * original SSL/TLS design, and has implications beyond Triple Handshake. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1 or + * MBEDTLS_SSL_PROTO_TLS1_1 or + * MBEDTLS_SSL_PROTO_TLS1_2 + * + * Comment this macro to disable support for Extended Master Secret. + */ +#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET + +/** + * \def MBEDTLS_SSL_FALLBACK_SCSV + * + * Enable support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv-00). + * + * For servers, it is recommended to always enable this, unless you support + * only one version of TLS, or know for sure that none of your clients + * implements a fallback strategy. + * + * For clients, you only need this if you're using a fallback strategy, which + * is not recommended in the first place, unless you absolutely need it to + * interoperate with buggy (version-intolerant) servers. + * + * Comment this macro to disable support for FALLBACK_SCSV + */ +#define MBEDTLS_SSL_FALLBACK_SCSV + +/** + * \def MBEDTLS_SSL_HW_RECORD_ACCEL + * + * Enable hooking functions in SSL module for hardware acceleration of + * individual records. + * + * Uncomment this macro to enable hooking functions. + */ +//#define MBEDTLS_SSL_HW_RECORD_ACCEL + +/** + * \def MBEDTLS_SSL_CBC_RECORD_SPLITTING + * + * Enable 1/n-1 record splitting for CBC mode in SSLv3 and TLS 1.0. + * + * This is a countermeasure to the BEAST attack, which also minimizes the risk + * of interoperability issues compared to sending 0-length records. + * + * Comment this macro to disable 1/n-1 record splitting. + */ +#define MBEDTLS_SSL_CBC_RECORD_SPLITTING + +/** + * \def MBEDTLS_SSL_RENEGOTIATION + * + * Disable support for TLS renegotiation. + * + * The two main uses of renegotiation are (1) refresh keys on long-lived + * connections and (2) client authentication after the initial handshake. + * If you don't need renegotiation, it's probably better to disable it, since + * it has been associated with security issues in the past and is easy to + * misuse/misunderstand. + * + * Comment this to disable support for renegotiation. + */ +#define MBEDTLS_SSL_RENEGOTIATION + +/** + * \def MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO + * + * Enable support for receiving and parsing SSLv2 Client Hello messages for the + * SSL Server module (MBEDTLS_SSL_SRV_C). + * + * Uncomment this macro to enable support for SSLv2 Client Hello messages. + */ +//#define MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO + +/** + * \def MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE + * + * Pick the ciphersuite according to the client's preferences rather than ours + * in the SSL Server module (MBEDTLS_SSL_SRV_C). + * + * Uncomment this macro to respect client's ciphersuite order + */ +//#define MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE + +/** + * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH + * + * Enable support for RFC 6066 max_fragment_length extension in SSL. + * + * Comment this macro to disable support for the max_fragment_length extension + */ +#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH + +/** + * \def MBEDTLS_SSL_PROTO_SSL3 + * + * Enable support for SSL 3.0. + * + * Requires: MBEDTLS_MD5_C + * MBEDTLS_SHA1_C + * + * Comment this macro to disable support for SSL 3.0 + */ +//#define MBEDTLS_SSL_PROTO_SSL3 + +/** + * \def MBEDTLS_SSL_PROTO_TLS1 + * + * Enable support for TLS 1.0. + * + * Requires: MBEDTLS_MD5_C + * MBEDTLS_SHA1_C + * + * Comment this macro to disable support for TLS 1.0 + */ +#define MBEDTLS_SSL_PROTO_TLS1 + +/** + * \def MBEDTLS_SSL_PROTO_TLS1_1 + * + * Enable support for TLS 1.1 (and DTLS 1.0 if DTLS is enabled). + * + * Requires: MBEDTLS_MD5_C + * MBEDTLS_SHA1_C + * + * Comment this macro to disable support for TLS 1.1 / DTLS 1.0 + */ +#define MBEDTLS_SSL_PROTO_TLS1_1 + +/** + * \def MBEDTLS_SSL_PROTO_TLS1_2 + * + * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled). + * + * Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C + * (Depends on ciphersuites) + * + * Comment this macro to disable support for TLS 1.2 / DTLS 1.2 + */ +#define MBEDTLS_SSL_PROTO_TLS1_2 + +/** + * \def MBEDTLS_SSL_PROTO_DTLS + * + * Enable support for DTLS (all available versions). + * + * Enable this and MBEDTLS_SSL_PROTO_TLS1_1 to enable DTLS 1.0, + * and/or this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1_1 + * or MBEDTLS_SSL_PROTO_TLS1_2 + * + * Comment this macro to disable support for DTLS + */ +#define MBEDTLS_SSL_PROTO_DTLS + +/** + * \def MBEDTLS_SSL_ALPN + * + * Enable support for RFC 7301 Application Layer Protocol Negotiation. + * + * Comment this macro to disable support for ALPN. + */ +#define MBEDTLS_SSL_ALPN + +/** + * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY + * + * Enable support for the anti-replay mechanism in DTLS. + * + * Requires: MBEDTLS_SSL_TLS_C + * MBEDTLS_SSL_PROTO_DTLS + * + * \warning Disabling this is often a security risk! + * See mbedtls_ssl_conf_dtls_anti_replay() for details. + * + * Comment this to disable anti-replay in DTLS. + */ +#define MBEDTLS_SSL_DTLS_ANTI_REPLAY + +/** + * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY + * + * Enable support for HelloVerifyRequest on DTLS servers. + * + * This feature is highly recommended to prevent DTLS servers being used as + * amplifiers in DoS attacks against other hosts. It should always be enabled + * unless you know for sure amplification cannot be a problem in the + * environment in which your server operates. + * + * \warning Disabling this can ba a security risk! (see above) + * + * Requires: MBEDTLS_SSL_PROTO_DTLS + * + * Comment this to disable support for HelloVerifyRequest. + */ +#define MBEDTLS_SSL_DTLS_HELLO_VERIFY + +/** + * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE + * + * Enable server-side support for clients that reconnect from the same port. + * + * Some clients unexpectedly close the connection and try to reconnect using the + * same source port. This needs special support from the server to handle the + * new connection securely, as described in section 4.2.8 of RFC 6347. This + * flag enables that support. + * + * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY + * + * Comment this to disable support for clients reusing the source port. + */ +#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE + +/** + * \def MBEDTLS_SSL_DTLS_BADMAC_LIMIT + * + * Enable support for a limit of records with bad MAC. + * + * See mbedtls_ssl_conf_dtls_badmac_limit(). + * + * Requires: MBEDTLS_SSL_PROTO_DTLS + */ +#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT + +/** + * \def MBEDTLS_SSL_SESSION_TICKETS + * + * Enable support for RFC 5077 session tickets in SSL. + * Client-side, provides full support for session tickets (maintainance of a + * session store remains the responsibility of the application, though). + * Server-side, you also need to provide callbacks for writing and parsing + * tickets, including authenticated encryption and key management. Example + * callbacks are provided by MBEDTLS_SSL_TICKET_C. + * + * Comment this macro to disable support for SSL session tickets + */ +#define MBEDTLS_SSL_SESSION_TICKETS + +/** + * \def MBEDTLS_SSL_EXPORT_KEYS + * + * Enable support for exporting key block and master secret. + * This is required for certain users of TLS, e.g. EAP-TLS. + * + * Comment this macro to disable support for key export + */ +#define MBEDTLS_SSL_EXPORT_KEYS + +/** + * \def MBEDTLS_SSL_SERVER_NAME_INDICATION + * + * Enable support for RFC 6066 server name indication (SNI) in SSL. + * + * Requires: MBEDTLS_X509_CRT_PARSE_C + * + * Comment this macro to disable support for server name indication in SSL + */ +#define MBEDTLS_SSL_SERVER_NAME_INDICATION + +/** + * \def MBEDTLS_SSL_TRUNCATED_HMAC + * + * Enable support for RFC 6066 truncated HMAC in SSL. + * + * Comment this macro to disable support for truncated HMAC in SSL + */ +#define MBEDTLS_SSL_TRUNCATED_HMAC + +/** + * \def MBEDTLS_THREADING_ALT + * + * Provide your own alternate threading implementation. + * + * Requires: MBEDTLS_THREADING_C + * + * Uncomment this to allow your own alternate threading implementation. + */ +//#define MBEDTLS_THREADING_ALT + +/** + * \def MBEDTLS_THREADING_PTHREAD + * + * Enable the pthread wrapper layer for the threading layer. + * + * Requires: MBEDTLS_THREADING_C + * + * Uncomment this to enable pthread mutexes. + */ +//#define MBEDTLS_THREADING_PTHREAD + +/** + * \def MBEDTLS_VERSION_FEATURES + * + * Allow run-time checking of compile-time enabled features. Thus allowing users + * to check at run-time if the library is for instance compiled with threading + * support via mbedtls_version_check_feature(). + * + * Requires: MBEDTLS_VERSION_C + * + * Comment this to disable run-time checking and save ROM space + */ +#define MBEDTLS_VERSION_FEATURES + +/** + * \def MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 + * + * If set, the X509 parser will not break-off when parsing an X509 certificate + * and encountering an extension in a v1 or v2 certificate. + * + * Uncomment to prevent an error. + */ +//#define MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 + +/** + * \def MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION + * + * If set, the X509 parser will not break-off when parsing an X509 certificate + * and encountering an unknown critical extension. + * + * \warning Depending on your PKI use, enabling this can be a security risk! + * + * Uncomment to prevent an error. + */ +//#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION + +/** + * \def MBEDTLS_X509_CHECK_KEY_USAGE + * + * Enable verification of the keyUsage extension (CA and leaf certificates). + * + * Disabling this avoids problems with mis-issued and/or misused + * (intermediate) CA and leaf certificates. + * + * \warning Depending on your PKI use, disabling this can be a security risk! + * + * Comment to skip keyUsage checking for both CA and leaf certificates. + */ +#define MBEDTLS_X509_CHECK_KEY_USAGE + +/** + * \def MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE + * + * Enable verification of the extendedKeyUsage extension (leaf certificates). + * + * Disabling this avoids problems with mis-issued and/or misused certificates. + * + * \warning Depending on your PKI use, disabling this can be a security risk! + * + * Comment to skip extendedKeyUsage checking for certificates. + */ +#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE + +/** + * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT + * + * Enable parsing and verification of X.509 certificates, CRLs and CSRS + * signed with RSASSA-PSS (aka PKCS#1 v2.1). + * + * Comment this macro to disallow using RSASSA-PSS in certificates. + */ +#define MBEDTLS_X509_RSASSA_PSS_SUPPORT + +/** + * \def MBEDTLS_ZLIB_SUPPORT + * + * If set, the SSL/TLS module uses ZLIB to support compression and + * decompression of packet data. + * + * \warning TLS-level compression MAY REDUCE SECURITY! See for example the + * CRIME attack. Before enabling this option, you should examine with care if + * CRIME or similar exploits may be a applicable to your use case. + * + * \note Currently compression can't be used with DTLS. + * + * Used in: library/ssl_tls.c + * library/ssl_cli.c + * library/ssl_srv.c + * + * This feature requires zlib library and headers to be present. + * + * Uncomment to enable use of ZLIB + */ +//#define MBEDTLS_ZLIB_SUPPORT +/* \} name SECTION: mbed TLS feature support */ + +/** + * \name SECTION: mbed TLS modules + * + * This section enables or disables entire modules in mbed TLS + * \{ + */ + +/** + * \def MBEDTLS_AESNI_C + * + * Enable AES-NI support on x86-64. + * + * Module: library/aesni.c + * Caller: library/aes.c + * + * Requires: MBEDTLS_HAVE_ASM + * + * This modules adds support for the AES-NI instructions on x86-64 + */ +#define MBEDTLS_AESNI_C + +/** + * \def MBEDTLS_AES_C + * + * Enable the AES block cipher. + * + * Module: library/aes.c + * Caller: library/ssl_tls.c + * library/pem.c + * library/ctr_drbg.c + * + * This module enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA + * + * PEM_PARSE uses AES for decrypting encrypted keys. + */ +#define MBEDTLS_AES_C + +/** + * \def MBEDTLS_ARC4_C + * + * Enable the ARCFOUR stream cipher. + * + * Module: library/arc4.c + * Caller: library/ssl_tls.c + * + * This module enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA + * MBEDTLS_TLS_RSA_WITH_RC4_128_SHA + * MBEDTLS_TLS_RSA_WITH_RC4_128_MD5 + * MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA + * MBEDTLS_TLS_PSK_WITH_RC4_128_SHA + */ +#define MBEDTLS_ARC4_C + +/** + * \def MBEDTLS_ASN1_PARSE_C + * + * Enable the generic ASN1 parser. + * + * Module: library/asn1.c + * Caller: library/x509.c + * library/dhm.c + * library/pkcs12.c + * library/pkcs5.c + * library/pkparse.c + */ +#define MBEDTLS_ASN1_PARSE_C + +/** + * \def MBEDTLS_ASN1_WRITE_C + * + * Enable the generic ASN1 writer. + * + * Module: library/asn1write.c + * Caller: library/ecdsa.c + * library/pkwrite.c + * library/x509_create.c + * library/x509write_crt.c + * library/mbedtls_x509write_csr.c + */ +#define MBEDTLS_ASN1_WRITE_C + +/** + * \def MBEDTLS_BASE64_C + * + * Enable the Base64 module. + * + * Module: library/base64.c + * Caller: library/pem.c + * + * This module is required for PEM support (required by X.509). + */ +#define MBEDTLS_BASE64_C + +/** + * \def MBEDTLS_BIGNUM_C + * + * Enable the multi-precision integer library. + * + * Module: library/bignum.c + * Caller: library/dhm.c + * library/ecp.c + * library/ecdsa.c + * library/rsa.c + * library/ssl_tls.c + * + * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support. + */ +#define MBEDTLS_BIGNUM_C + +/** + * \def MBEDTLS_BLOWFISH_C + * + * Enable the Blowfish block cipher. + * + * Module: library/blowfish.c + */ +#define MBEDTLS_BLOWFISH_C + +/** + * \def MBEDTLS_CAMELLIA_C + * + * Enable the Camellia block cipher. + * + * Module: library/camellia.c + * Caller: library/ssl_tls.c + * + * This module enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 + */ +#define MBEDTLS_CAMELLIA_C + +/** + * \def MBEDTLS_CCM_C + * + * Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher. + * + * Module: library/ccm.c + * + * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C + * + * This module enables the AES-CCM ciphersuites, if other requisites are + * enabled as well. + */ +#define MBEDTLS_CCM_C + +/** + * \def MBEDTLS_CERTS_C + * + * Enable the test certificates. + * + * Module: library/certs.c + * Caller: + * + * This module is used for testing (ssl_client/server). + */ +#define MBEDTLS_CERTS_C + +/** + * \def MBEDTLS_CIPHER_C + * + * Enable the generic cipher layer. + * + * Module: library/cipher.c + * Caller: library/ssl_tls.c + * + * Uncomment to enable generic cipher wrappers. + */ +#define MBEDTLS_CIPHER_C + +/** + * \def MBEDTLS_CMAC_C + * + * Enable the CMAC (Cipher-based Message Authentication Code) mode for block + * ciphers. + * + * Module: library/cmac.c + * + * Requires: MBEDTLS_AES_C or MBEDTLS_DES_C + * + */ +//#define MBEDTLS_CMAC_C + +/** + * \def MBEDTLS_CTR_DRBG_C + * + * Enable the CTR_DRBG AES-256-based random generator. + * + * Module: library/ctr_drbg.c + * Caller: + * + * Requires: MBEDTLS_AES_C + * + * This module provides the CTR_DRBG AES-256 random number generator. + */ +#define MBEDTLS_CTR_DRBG_C + +/** + * \def MBEDTLS_DEBUG_C + * + * Enable the debug functions. + * + * Module: library/debug.c + * Caller: library/ssl_cli.c + * library/ssl_srv.c + * library/ssl_tls.c + * + * This module provides debugging functions. + */ +#define MBEDTLS_DEBUG_C + +/** + * \def MBEDTLS_DES_C + * + * Enable the DES block cipher. + * + * Module: library/des.c + * Caller: library/pem.c + * library/ssl_tls.c + * + * This module enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA + * + * PEM_PARSE uses DES/3DES for decrypting encrypted keys. + */ +#define MBEDTLS_DES_C + +/** + * \def MBEDTLS_DHM_C + * + * Enable the Diffie-Hellman-Merkle module. + * + * Module: library/dhm.c + * Caller: library/ssl_cli.c + * library/ssl_srv.c + * + * This module is used by the following key exchanges: + * DHE-RSA, DHE-PSK + */ +#define MBEDTLS_DHM_C + +/** + * \def MBEDTLS_ECDH_C + * + * Enable the elliptic curve Diffie-Hellman library. + * + * Module: library/ecdh.c + * Caller: library/ssl_cli.c + * library/ssl_srv.c + * + * This module is used by the following key exchanges: + * ECDHE-ECDSA, ECDHE-RSA, DHE-PSK + * + * Requires: MBEDTLS_ECP_C + */ +#define MBEDTLS_ECDH_C + +/** + * \def MBEDTLS_ECDSA_C + * + * Enable the elliptic curve DSA library. + * + * Module: library/ecdsa.c + * Caller: + * + * This module is used by the following key exchanges: + * ECDHE-ECDSA + * + * Requires: MBEDTLS_ECP_C, MBEDTLS_ASN1_WRITE_C, MBEDTLS_ASN1_PARSE_C + */ +#define MBEDTLS_ECDSA_C + +/** + * \def MBEDTLS_ECJPAKE_C + * + * Enable the elliptic curve J-PAKE library. + * + * \warning This is currently experimental. EC J-PAKE support is based on the + * Thread v1.0.0 specification; incompatible changes to the specification + * might still happen. For this reason, this is disabled by default. + * + * Module: library/ecjpake.c + * Caller: + * + * This module is used by the following key exchanges: + * ECJPAKE + * + * Requires: MBEDTLS_ECP_C, MBEDTLS_MD_C + */ +//#define MBEDTLS_ECJPAKE_C + +/** + * \def MBEDTLS_ECP_C + * + * Enable the elliptic curve over GF(p) library. + * + * Module: library/ecp.c + * Caller: library/ecdh.c + * library/ecdsa.c + * library/ecjpake.c + * + * Requires: MBEDTLS_BIGNUM_C and at least one MBEDTLS_ECP_DP_XXX_ENABLED + */ +#define MBEDTLS_ECP_C + +/** + * \def MBEDTLS_ENTROPY_C + * + * Enable the platform-specific entropy code. + * + * Module: library/entropy.c + * Caller: + * + * Requires: MBEDTLS_SHA512_C or MBEDTLS_SHA256_C + * + * This module provides a generic entropy pool + */ +#define MBEDTLS_ENTROPY_C + +/** + * \def MBEDTLS_ERROR_C + * + * Enable error code to error string conversion. + * + * Module: library/error.c + * Caller: + * + * This module enables mbedtls_strerror(). + */ +#define MBEDTLS_ERROR_C + +/** + * \def MBEDTLS_GCM_C + * + * Enable the Galois/Counter Mode (GCM) for AES. + * + * Module: library/gcm.c + * + * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C + * + * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other + * requisites are enabled as well. + */ +#define MBEDTLS_GCM_C + +/** + * \def MBEDTLS_HAVEGE_C + * + * Enable the HAVEGE random generator. + * + * Warning: the HAVEGE random generator is not suitable for virtualized + * environments + * + * Warning: the HAVEGE random generator is dependent on timing and specific + * processor traits. It is therefore not advised to use HAVEGE as + * your applications primary random generator or primary entropy pool + * input. As a secondary input to your entropy pool, it IS able add + * the (limited) extra entropy it provides. + * + * Module: library/havege.c + * Caller: + * + * Requires: MBEDTLS_TIMING_C + * + * Uncomment to enable the HAVEGE random generator. + */ +//#define MBEDTLS_HAVEGE_C + +/** + * \def MBEDTLS_HMAC_DRBG_C + * + * Enable the HMAC_DRBG random generator. + * + * Module: library/hmac_drbg.c + * Caller: + * + * Requires: MBEDTLS_MD_C + * + * Uncomment to enable the HMAC_DRBG random number geerator. + */ +#define MBEDTLS_HMAC_DRBG_C + +/** + * \def MBEDTLS_MD_C + * + * Enable the generic message digest layer. + * + * Module: library/mbedtls_md.c + * Caller: + * + * Uncomment to enable generic message digest wrappers. + */ +#define MBEDTLS_MD_C + +/** + * \def MBEDTLS_MD2_C + * + * Enable the MD2 hash algorithm. + * + * Module: library/mbedtls_md2.c + * Caller: + * + * Uncomment to enable support for (rare) MD2-signed X.509 certs. + */ +//#define MBEDTLS_MD2_C + +/** + * \def MBEDTLS_MD4_C + * + * Enable the MD4 hash algorithm. + * + * Module: library/mbedtls_md4.c + * Caller: + * + * Uncomment to enable support for (rare) MD4-signed X.509 certs. + */ +//#define MBEDTLS_MD4_C + +/** + * \def MBEDTLS_MD5_C + * + * Enable the MD5 hash algorithm. + * + * Module: library/mbedtls_md5.c + * Caller: library/mbedtls_md.c + * library/pem.c + * library/ssl_tls.c + * + * This module is required for SSL/TLS and X.509. + * PEM_PARSE uses MD5 for decrypting encrypted keys. + */ +#define MBEDTLS_MD5_C + +/** + * \def MBEDTLS_MEMORY_BUFFER_ALLOC_C + * + * Enable the buffer allocator implementation that makes use of a (stack) + * based buffer to 'allocate' dynamic memory. (replaces calloc() and free() + * calls) + * + * Module: library/memory_buffer_alloc.c + * + * Requires: MBEDTLS_PLATFORM_C + * MBEDTLS_PLATFORM_MEMORY (to use it within mbed TLS) + * + * Enable this module to enable the buffer memory allocator. + */ +//#define MBEDTLS_MEMORY_BUFFER_ALLOC_C + +/** + * \def MBEDTLS_NET_C + * + * Enable the TCP and UDP over IPv6/IPv4 networking routines. + * + * \note This module only works on POSIX/Unix (including Linux, BSD and OS X) + * and Windows. For other platforms, you'll want to disable it, and write your + * own networking callbacks to be passed to \c mbedtls_ssl_set_bio(). + * + * \note See also our Knowledge Base article about porting to a new + * environment: + * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS + * + * Module: library/net_sockets.c + * + * This module provides networking routines. + */ +#define MBEDTLS_NET_C + +/** + * \def MBEDTLS_OID_C + * + * Enable the OID database. + * + * Module: library/oid.c + * Caller: library/asn1write.c + * library/pkcs5.c + * library/pkparse.c + * library/pkwrite.c + * library/rsa.c + * library/x509.c + * library/x509_create.c + * library/mbedtls_x509_crl.c + * library/mbedtls_x509_crt.c + * library/mbedtls_x509_csr.c + * library/x509write_crt.c + * library/mbedtls_x509write_csr.c + * + * This modules translates between OIDs and internal values. + */ +#define MBEDTLS_OID_C + +/** + * \def MBEDTLS_PADLOCK_C + * + * Enable VIA Padlock support on x86. + * + * Module: library/padlock.c + * Caller: library/aes.c + * + * Requires: MBEDTLS_HAVE_ASM + * + * This modules adds support for the VIA PadLock on x86. + */ +#define MBEDTLS_PADLOCK_C + +/** + * \def MBEDTLS_PEM_PARSE_C + * + * Enable PEM decoding / parsing. + * + * Module: library/pem.c + * Caller: library/dhm.c + * library/pkparse.c + * library/mbedtls_x509_crl.c + * library/mbedtls_x509_crt.c + * library/mbedtls_x509_csr.c + * + * Requires: MBEDTLS_BASE64_C + * + * This modules adds support for decoding / parsing PEM files. + */ +#define MBEDTLS_PEM_PARSE_C + +/** + * \def MBEDTLS_PEM_WRITE_C + * + * Enable PEM encoding / writing. + * + * Module: library/pem.c + * Caller: library/pkwrite.c + * library/x509write_crt.c + * library/mbedtls_x509write_csr.c + * + * Requires: MBEDTLS_BASE64_C + * + * This modules adds support for encoding / writing PEM files. + */ +#define MBEDTLS_PEM_WRITE_C + +/** + * \def MBEDTLS_PK_C + * + * Enable the generic public (asymetric) key layer. + * + * Module: library/pk.c + * Caller: library/ssl_tls.c + * library/ssl_cli.c + * library/ssl_srv.c + * + * Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C + * + * Uncomment to enable generic public key wrappers. + */ +#define MBEDTLS_PK_C + +/** + * \def MBEDTLS_PK_PARSE_C + * + * Enable the generic public (asymetric) key parser. + * + * Module: library/pkparse.c + * Caller: library/mbedtls_x509_crt.c + * library/mbedtls_x509_csr.c + * + * Requires: MBEDTLS_PK_C + * + * Uncomment to enable generic public key parse functions. + */ +#define MBEDTLS_PK_PARSE_C + +/** + * \def MBEDTLS_PK_WRITE_C + * + * Enable the generic public (asymetric) key writer. + * + * Module: library/pkwrite.c + * Caller: library/x509write.c + * + * Requires: MBEDTLS_PK_C + * + * Uncomment to enable generic public key write functions. + */ +#define MBEDTLS_PK_WRITE_C + +/** + * \def MBEDTLS_PKCS5_C + * + * Enable PKCS#5 functions. + * + * Module: library/pkcs5.c + * + * Requires: MBEDTLS_MD_C + * + * This module adds support for the PKCS#5 functions. + */ +#define MBEDTLS_PKCS5_C + +/** + * \def MBEDTLS_PKCS11_C + * + * Enable wrapper for PKCS#11 smartcard support. + * + * Module: library/pkcs11.c + * Caller: library/pk.c + * + * Requires: MBEDTLS_PK_C + * + * This module enables SSL/TLS PKCS #11 smartcard support. + * Requires the presence of the PKCS#11 helper library (libpkcs11-helper) + */ +//#define MBEDTLS_PKCS11_C + +/** + * \def MBEDTLS_PKCS12_C + * + * Enable PKCS#12 PBE functions. + * Adds algorithms for parsing PKCS#8 encrypted private keys + * + * Module: library/pkcs12.c + * Caller: library/pkparse.c + * + * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_CIPHER_C, MBEDTLS_MD_C + * Can use: MBEDTLS_ARC4_C + * + * This module enables PKCS#12 functions. + */ +#define MBEDTLS_PKCS12_C + +/** + * \def MBEDTLS_PLATFORM_C + * + * Enable the platform abstraction layer that allows you to re-assign + * functions like calloc(), free(), snprintf(), printf(), fprintf(), exit(). + * + * Enabling MBEDTLS_PLATFORM_C enables to use of MBEDTLS_PLATFORM_XXX_ALT + * or MBEDTLS_PLATFORM_XXX_MACRO directives, allowing the functions mentioned + * above to be specified at runtime or compile time respectively. + * + * \note This abstraction layer must be enabled on Windows (including MSYS2) + * as other module rely on it for a fixed snprintf implementation. + * + * Module: library/platform.c + * Caller: Most other .c files + * + * This module enables abstraction of common (libc) functions. + */ +#define MBEDTLS_PLATFORM_C + +/** + * \def MBEDTLS_RIPEMD160_C + * + * Enable the RIPEMD-160 hash algorithm. + * + * Module: library/mbedtls_ripemd160.c + * Caller: library/mbedtls_md.c + * + */ +#define MBEDTLS_RIPEMD160_C + +/** + * \def MBEDTLS_RSA_C + * + * Enable the RSA public-key cryptosystem. + * + * Module: library/rsa.c + * Caller: library/ssl_cli.c + * library/ssl_srv.c + * library/ssl_tls.c + * library/x509.c + * + * This module is used by the following key exchanges: + * RSA, DHE-RSA, ECDHE-RSA, RSA-PSK + * + * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C + */ +#define MBEDTLS_RSA_C + +/** + * \def MBEDTLS_SHA1_C + * + * Enable the SHA1 cryptographic hash algorithm. + * + * Module: library/mbedtls_sha1.c + * Caller: library/mbedtls_md.c + * library/ssl_cli.c + * library/ssl_srv.c + * library/ssl_tls.c + * library/x509write_crt.c + * + * This module is required for SSL/TLS and SHA1-signed certificates. + */ +#define MBEDTLS_SHA1_C + +/** + * \def MBEDTLS_SHA256_C + * + * Enable the SHA-224 and SHA-256 cryptographic hash algorithms. + * + * Module: library/mbedtls_sha256.c + * Caller: library/entropy.c + * library/mbedtls_md.c + * library/ssl_cli.c + * library/ssl_srv.c + * library/ssl_tls.c + * + * This module adds support for SHA-224 and SHA-256. + * This module is required for the SSL/TLS 1.2 PRF function. + */ +#define MBEDTLS_SHA256_C + +/** + * \def MBEDTLS_SHA512_C + * + * Enable the SHA-384 and SHA-512 cryptographic hash algorithms. + * + * Module: library/mbedtls_sha512.c + * Caller: library/entropy.c + * library/mbedtls_md.c + * library/ssl_cli.c + * library/ssl_srv.c + * + * This module adds support for SHA-384 and SHA-512. + */ +#define MBEDTLS_SHA512_C + +/** + * \def MBEDTLS_SSL_CACHE_C + * + * Enable simple SSL cache implementation. + * + * Module: library/ssl_cache.c + * Caller: + * + * Requires: MBEDTLS_SSL_CACHE_C + */ +#define MBEDTLS_SSL_CACHE_C + +/** + * \def MBEDTLS_SSL_COOKIE_C + * + * Enable basic implementation of DTLS cookies for hello verification. + * + * Module: library/ssl_cookie.c + * Caller: + */ +#define MBEDTLS_SSL_COOKIE_C + +/** + * \def MBEDTLS_SSL_TICKET_C + * + * Enable an implementation of TLS server-side callbacks for session tickets. + * + * Module: library/ssl_ticket.c + * Caller: + * + * Requires: MBEDTLS_CIPHER_C + */ +#define MBEDTLS_SSL_TICKET_C + +/** + * \def MBEDTLS_SSL_CLI_C + * + * Enable the SSL/TLS client code. + * + * Module: library/ssl_cli.c + * Caller: + * + * Requires: MBEDTLS_SSL_TLS_C + * + * This module is required for SSL/TLS client support. + */ +#define MBEDTLS_SSL_CLI_C + +/** + * \def MBEDTLS_SSL_SRV_C + * + * Enable the SSL/TLS server code. + * + * Module: library/ssl_srv.c + * Caller: + * + * Requires: MBEDTLS_SSL_TLS_C + * + * This module is required for SSL/TLS server support. + */ +#define MBEDTLS_SSL_SRV_C + +/** + * \def MBEDTLS_SSL_TLS_C + * + * Enable the generic SSL/TLS code. + * + * Module: library/ssl_tls.c + * Caller: library/ssl_cli.c + * library/ssl_srv.c + * + * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C + * and at least one of the MBEDTLS_SSL_PROTO_XXX defines + * + * This module is required for SSL/TLS. + */ +#define MBEDTLS_SSL_TLS_C + +/** + * \def MBEDTLS_THREADING_C + * + * Enable the threading abstraction layer. + * By default mbed TLS assumes it is used in a non-threaded environment or that + * contexts are not shared between threads. If you do intend to use contexts + * between threads, you will need to enable this layer to prevent race + * conditions. See also our Knowledge Base article about threading: + * https://tls.mbed.org/kb/development/thread-safety-and-multi-threading + * + * Module: library/threading.c + * + * This allows different threading implementations (self-implemented or + * provided). + * + * You will have to enable either MBEDTLS_THREADING_ALT or + * MBEDTLS_THREADING_PTHREAD. + * + * Enable this layer to allow use of mutexes within mbed TLS + */ +//#define MBEDTLS_THREADING_C + +/** + * \def MBEDTLS_TIMING_C + * + * Enable the semi-portable timing interface. + * + * \note The provided implementation only works on POSIX/Unix (including Linux, + * BSD and OS X) and Windows. On other platforms, you can either disable that + * module and provide your own implementations of the callbacks needed by + * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide + * your own implementation of the whole module by setting + * \c MBEDTLS_TIMING_ALT in the current file. + * + * \note See also our Knowledge Base article about porting to a new + * environment: + * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS + * + * Module: library/timing.c + * Caller: library/havege.c + * + * This module is used by the HAVEGE random number generator. + */ +#define MBEDTLS_TIMING_C + +/** + * \def MBEDTLS_VERSION_C + * + * Enable run-time version information. + * + * Module: library/version.c + * + * This module provides run-time version information. + */ +#define MBEDTLS_VERSION_C + +/** + * \def MBEDTLS_X509_USE_C + * + * Enable X.509 core for using certificates. + * + * Module: library/x509.c + * Caller: library/mbedtls_x509_crl.c + * library/mbedtls_x509_crt.c + * library/mbedtls_x509_csr.c + * + * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, + * MBEDTLS_PK_PARSE_C + * + * This module is required for the X.509 parsing modules. + */ +#define MBEDTLS_X509_USE_C + +/** + * \def MBEDTLS_X509_CRT_PARSE_C + * + * Enable X.509 certificate parsing. + * + * Module: library/mbedtls_x509_crt.c + * Caller: library/ssl_cli.c + * library/ssl_srv.c + * library/ssl_tls.c + * + * Requires: MBEDTLS_X509_USE_C + * + * This module is required for X.509 certificate parsing. + */ +#define MBEDTLS_X509_CRT_PARSE_C + +/** + * \def MBEDTLS_X509_CRL_PARSE_C + * + * Enable X.509 CRL parsing. + * + * Module: library/mbedtls_x509_crl.c + * Caller: library/mbedtls_x509_crt.c + * + * Requires: MBEDTLS_X509_USE_C + * + * This module is required for X.509 CRL parsing. + */ +#define MBEDTLS_X509_CRL_PARSE_C + +/** + * \def MBEDTLS_X509_CSR_PARSE_C + * + * Enable X.509 Certificate Signing Request (CSR) parsing. + * + * Module: library/mbedtls_x509_csr.c + * Caller: library/x509_crt_write.c + * + * Requires: MBEDTLS_X509_USE_C + * + * This module is used for reading X.509 certificate request. + */ +#define MBEDTLS_X509_CSR_PARSE_C + +/** + * \def MBEDTLS_X509_CREATE_C + * + * Enable X.509 core for creating certificates. + * + * Module: library/x509_create.c + * + * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C + * + * This module is the basis for creating X.509 certificates and CSRs. + */ +#define MBEDTLS_X509_CREATE_C + +/** + * \def MBEDTLS_X509_CRT_WRITE_C + * + * Enable creating X.509 certificates. + * + * Module: library/x509_crt_write.c + * + * Requires: MBEDTLS_X509_CREATE_C + * + * This module is required for X.509 certificate creation. + */ +#define MBEDTLS_X509_CRT_WRITE_C + +/** + * \def MBEDTLS_X509_CSR_WRITE_C + * + * Enable creating X.509 Certificate Signing Requests (CSR). + * + * Module: library/x509_csr_write.c + * + * Requires: MBEDTLS_X509_CREATE_C + * + * This module is required for X.509 certificate request writing. + */ +#define MBEDTLS_X509_CSR_WRITE_C + +/** + * \def MBEDTLS_XTEA_C + * + * Enable the XTEA block cipher. + * + * Module: library/xtea.c + * Caller: + */ +#define MBEDTLS_XTEA_C + +/* \} name SECTION: mbed TLS modules */ + +/** + * \name SECTION: Module configuration options + * + * This section allows for the setting of module specific sizes and + * configuration options. The default values are already present in the + * relevant header files and should suffice for the regular use cases. + * + * Our advice is to enable options and change their values here + * only if you have a good reason and know the consequences. + * + * Please check the respective header file for documentation on these + * parameters (to prevent duplicate documentation). + * \{ + */ + +/* MPI / BIGNUM options */ +//#define MBEDTLS_MPI_WINDOW_SIZE 6 /**< Maximum windows size used. */ +//#define MBEDTLS_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */ + +/* CTR_DRBG options */ +//#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */ +//#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ +//#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ +//#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ +//#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ + +/* HMAC_DRBG options */ +//#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ +//#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ +//#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ +//#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ + +/* ECP options */ +//#define MBEDTLS_ECP_MAX_BITS 521 /**< Maximum bit size of groups */ +//#define MBEDTLS_ECP_WINDOW_SIZE 6 /**< Maximum window size used */ +//#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up */ + +/* Entropy options */ +//#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */ +//#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */ +//#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 /**< Default minimum number of bytes required for the hardware entropy source mbedtls_hardware_poll() before entropy is released */ + +/* Memory buffer allocator options */ +//#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 /**< Align on multiples of this value */ + +/* Platform options */ +//#define MBEDTLS_PLATFORM_STD_MEM_HDR /**< Header to include if MBEDTLS_PLATFORM_NO_STD_FUNCTIONS is defined. Don't define if no header is needed. */ +//#define MBEDTLS_PLATFORM_STD_CALLOC calloc /**< Default allocator to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_FREE free /**< Default free to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default exit to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_TIME time /**< Default time to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ +//#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use, can be undefined */ +/* Note: your snprintf must correclty zero-terminate the buffer! */ +//#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< Default snprintf to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS 0 /**< Default exit value to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE 1 /**< Default exit value to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" /**< Seed file to read/write with default implementation */ + +/* To Use Function Macros MBEDTLS_PLATFORM_C must be enabled */ +/* MBEDTLS_PLATFORM_XXX_MACRO and MBEDTLS_PLATFORM_XXX_ALT cannot both be defined */ +//#define MBEDTLS_PLATFORM_CALLOC_MACRO calloc /**< Default allocator macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_FREE_MACRO free /**< Default free macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_EXIT_MACRO exit /**< Default exit macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_TIME_MACRO time /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ +//#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO time_t /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ +//#define MBEDTLS_PLATFORM_FPRINTF_MACRO fprintf /**< Default fprintf macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_PRINTF_MACRO printf /**< Default printf macro to use, can be undefined */ +/* Note: your snprintf must correclty zero-terminate the buffer! */ +//#define MBEDTLS_PLATFORM_SNPRINTF_MACRO snprintf /**< Default snprintf macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ +//#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ + +/* SSL Cache options */ +//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /**< 1 day */ +//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /**< Maximum entries in cache */ + +/* SSL options */ +//#define MBEDTLS_SSL_MAX_CONTENT_LEN 16384 /**< Maxium fragment length in bytes, determines the size of each of the two internal I/O buffers */ +//#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME 86400 /**< Lifetime of session tickets (if enabled) */ +//#define MBEDTLS_PSK_MAX_LEN 32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */ +//#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */ + +/** + * Complete list of ciphersuites to use, in order of preference. + * + * \warning No dependency checking is done on that field! This option can only + * be used to restrict the set of available ciphersuites. It is your + * responsibility to make sure the needed modules are active. + * + * Use this to save a few hundred bytes of ROM (default ordering of all + * available ciphersuites) and a few to a few hundred bytes of RAM. + * + * The value below is only an example, not the default. + */ +//#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 + +/* X509 options */ +//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 /**< Maximum number of intermediate CAs in a verification chain. */ +//#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */ + +/* \} name SECTION: Customisation configuration options */ + +/* Target and application specific configurations */ +//#define YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE "mbedtls/target_config.h" + +#if defined(TARGET_LIKE_MBED) && defined(YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE) +#include YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE +#endif + +/* + * Allow user to override any previous default. + * + * Use two macro names for that, as: + * - with yotta the prefix YOTTA_CFG_ is forced + * - without yotta is looks weird to have a YOTTA prefix. + */ +#if defined(YOTTA_CFG_MBEDTLS_USER_CONFIG_FILE) +#include YOTTA_CFG_MBEDTLS_USER_CONFIG_FILE +#elif defined(MBEDTLS_USER_CONFIG_FILE) +#include MBEDTLS_USER_CONFIG_FILE +#endif + +#include "check_config.h" + +#endif /* MBEDTLS_CONFIG_H */ diff --git a/include/mbedtls/ctr_drbg.h b/include/mbedtls/ctr_drbg.h new file mode 100644 index 0000000..059d3c5 --- /dev/null +++ b/include/mbedtls/ctr_drbg.h @@ -0,0 +1,290 @@ +/** + * \file ctr_drbg.h + * + * \brief CTR_DRBG based on AES-256 (NIST SP 800-90) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_CTR_DRBG_H +#define MBEDTLS_CTR_DRBG_H + +#include "aes.h" + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +#define MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED -0x0034 /**< The entropy source failed. */ +#define MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG -0x0036 /**< Too many random requested in single call. */ +#define MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG -0x0038 /**< Input too large (Entropy + additional). */ +#define MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR -0x003A /**< Read/write error in file. */ + +#define MBEDTLS_CTR_DRBG_BLOCKSIZE 16 /**< Block size used by the cipher */ +#define MBEDTLS_CTR_DRBG_KEYSIZE 32 /**< Key size used by the cipher */ +#define MBEDTLS_CTR_DRBG_KEYBITS ( MBEDTLS_CTR_DRBG_KEYSIZE * 8 ) +#define MBEDTLS_CTR_DRBG_SEEDLEN ( MBEDTLS_CTR_DRBG_KEYSIZE + MBEDTLS_CTR_DRBG_BLOCKSIZE ) + /**< The seed length (counter + AES key) */ + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) +#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_ENTROPY_FORCE_SHA256) +#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */ +#else +#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 32 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */ +#endif +#endif + +#if !defined(MBEDTLS_CTR_DRBG_RESEED_INTERVAL) +#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ +#endif + +#if !defined(MBEDTLS_CTR_DRBG_MAX_INPUT) +#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ +#endif + +#if !defined(MBEDTLS_CTR_DRBG_MAX_REQUEST) +#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ +#endif + +#if !defined(MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) +#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ +#endif + +/* \} name SECTION: Module settings */ + +#define MBEDTLS_CTR_DRBG_PR_OFF 0 /**< No prediction resistance */ +#define MBEDTLS_CTR_DRBG_PR_ON 1 /**< Prediction resistance enabled */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief CTR_DRBG context structure + */ +typedef struct +{ + unsigned char counter[16]; /*!< counter (V) */ + int reseed_counter; /*!< reseed counter */ + int prediction_resistance; /*!< enable prediction resistance (Automatic + reseed before every random generation) */ + size_t entropy_len; /*!< amount of entropy grabbed on each + (re)seed */ + int reseed_interval; /*!< reseed interval */ + + mbedtls_aes_context aes_ctx; /*!< AES context */ + + /* + * Callbacks (Entropy) + */ + int (*f_entropy)(void *, unsigned char *, size_t); + + void *p_entropy; /*!< context for the entropy function */ + +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; +#endif +} +mbedtls_ctr_drbg_context; + +/** + * \brief CTR_DRBG context initialization + * Makes the context ready for mbedtls_ctr_drbg_seed() or + * mbedtls_ctr_drbg_free(). + * + * \param ctx CTR_DRBG context to be initialized + */ +void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx ); + +/** + * \brief CTR_DRBG initial seeding + * Seed and setup entropy source for future reseeds. + * + * Note: Personalization data can be provided in addition to the more generic + * entropy source to make this instantiation as unique as possible. + * + * \param ctx CTR_DRBG context to be seeded + * \param f_entropy Entropy callback (p_entropy, buffer to fill, buffer + * length) + * \param p_entropy Entropy context + * \param custom Personalization data (Device specific identifiers) + * (Can be NULL) + * \param len Length of personalization data + * + * \return 0 if successful, or + * MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED + */ +int mbedtls_ctr_drbg_seed( mbedtls_ctr_drbg_context *ctx, + int (*f_entropy)(void *, unsigned char *, size_t), + void *p_entropy, + const unsigned char *custom, + size_t len ); + +/** + * \brief Clear CTR_CRBG context data + * + * \param ctx CTR_DRBG context to clear + */ +void mbedtls_ctr_drbg_free( mbedtls_ctr_drbg_context *ctx ); + +/** + * \brief Enable / disable prediction resistance (Default: Off) + * + * Note: If enabled, entropy is used for ctx->entropy_len before each call! + * Only use this if you have ample supply of good entropy! + * + * \param ctx CTR_DRBG context + * \param resistance MBEDTLS_CTR_DRBG_PR_ON or MBEDTLS_CTR_DRBG_PR_OFF + */ +void mbedtls_ctr_drbg_set_prediction_resistance( mbedtls_ctr_drbg_context *ctx, + int resistance ); + +/** + * \brief Set the amount of entropy grabbed on each (re)seed + * (Default: MBEDTLS_CTR_DRBG_ENTROPY_LEN) + * + * \param ctx CTR_DRBG context + * \param len Amount of entropy to grab + */ +void mbedtls_ctr_drbg_set_entropy_len( mbedtls_ctr_drbg_context *ctx, + size_t len ); + +/** + * \brief Set the reseed interval + * (Default: MBEDTLS_CTR_DRBG_RESEED_INTERVAL) + * + * \param ctx CTR_DRBG context + * \param interval Reseed interval + */ +void mbedtls_ctr_drbg_set_reseed_interval( mbedtls_ctr_drbg_context *ctx, + int interval ); + +/** + * \brief CTR_DRBG reseeding (extracts data from entropy source) + * + * \param ctx CTR_DRBG context + * \param additional Additional data to add to state (Can be NULL) + * \param len Length of additional data + * + * \return 0 if successful, or + * MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED + */ +int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx, + const unsigned char *additional, size_t len ); + +/** + * \brief CTR_DRBG update state + * + * \param ctx CTR_DRBG context + * \param additional Additional data to update state with + * \param add_len Length of additional data + * + * \note If add_len is greater than MBEDTLS_CTR_DRBG_MAX_SEED_INPUT, + * only the first MBEDTLS_CTR_DRBG_MAX_SEED_INPUT bytes are used, + * the remaining ones are silently discarded. + */ +void mbedtls_ctr_drbg_update( mbedtls_ctr_drbg_context *ctx, + const unsigned char *additional, size_t add_len ); + +/** + * \brief CTR_DRBG generate random with additional update input + * + * Note: Automatically reseeds if reseed_counter is reached. + * + * \param p_rng CTR_DRBG context + * \param output Buffer to fill + * \param output_len Length of the buffer + * \param additional Additional data to update with (Can be NULL) + * \param add_len Length of additional data + * + * \return 0 if successful, or + * MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED, or + * MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG + */ +int mbedtls_ctr_drbg_random_with_add( void *p_rng, + unsigned char *output, size_t output_len, + const unsigned char *additional, size_t add_len ); + +/** + * \brief CTR_DRBG generate random + * + * Note: Automatically reseeds if reseed_counter is reached. + * + * \param p_rng CTR_DRBG context + * \param output Buffer to fill + * \param output_len Length of the buffer + * + * \return 0 if successful, or + * MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED, or + * MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG + */ +int mbedtls_ctr_drbg_random( void *p_rng, + unsigned char *output, size_t output_len ); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Write a seed file + * + * \param ctx CTR_DRBG context + * \param path Name of the file + * + * \return 0 if successful, + * MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR on file error, or + * MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED + */ +int mbedtls_ctr_drbg_write_seed_file( mbedtls_ctr_drbg_context *ctx, const char *path ); + +/** + * \brief Read and update a seed file. Seed is added to this + * instance + * + * \param ctx CTR_DRBG context + * \param path Name of the file + * + * \return 0 if successful, + * MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR on file error, + * MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED or + * MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG + */ +int mbedtls_ctr_drbg_update_seed_file( mbedtls_ctr_drbg_context *ctx, const char *path ); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_ctr_drbg_self_test( int verbose ); + +/* Internal functions (do not call directly) */ +int mbedtls_ctr_drbg_seed_entropy_len( mbedtls_ctr_drbg_context *, + int (*)(void *, unsigned char *, size_t), void *, + const unsigned char *, size_t, size_t ); + +#ifdef __cplusplus +} +#endif + +#endif /* ctr_drbg.h */ diff --git a/include/mbedtls/debug.h b/include/mbedtls/debug.h new file mode 100644 index 0000000..2957996 --- /dev/null +++ b/include/mbedtls/debug.h @@ -0,0 +1,228 @@ +/** + * \file debug.h + * + * \brief Functions for controlling and providing debug output from the library. + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_DEBUG_H +#define MBEDTLS_DEBUG_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "ssl.h" + +#if defined(MBEDTLS_ECP_C) +#include "ecp.h" +#endif + +#if defined(MBEDTLS_DEBUG_C) + +#define MBEDTLS_DEBUG_STRIP_PARENS( ... ) __VA_ARGS__ + +#define MBEDTLS_SSL_DEBUG_MSG( level, args ) \ + mbedtls_debug_print_msg( ssl, level, __FILE__, __LINE__, \ + MBEDTLS_DEBUG_STRIP_PARENS args ) + +#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) \ + mbedtls_debug_print_ret( ssl, level, __FILE__, __LINE__, text, ret ) + +#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) \ + mbedtls_debug_print_buf( ssl, level, __FILE__, __LINE__, text, buf, len ) + +#if defined(MBEDTLS_BIGNUM_C) +#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) \ + mbedtls_debug_print_mpi( ssl, level, __FILE__, __LINE__, text, X ) +#endif + +#if defined(MBEDTLS_ECP_C) +#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) \ + mbedtls_debug_print_ecp( ssl, level, __FILE__, __LINE__, text, X ) +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) \ + mbedtls_debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt ) +#endif + +#else /* MBEDTLS_DEBUG_C */ + +#define MBEDTLS_SSL_DEBUG_MSG( level, args ) do { } while( 0 ) +#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) do { } while( 0 ) +#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) do { } while( 0 ) +#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) do { } while( 0 ) +#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) do { } while( 0 ) +#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) do { } while( 0 ) + +#endif /* MBEDTLS_DEBUG_C */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Set the threshold error level to handle globally all debug output. + * Debug messages that have a level over the threshold value are + * discarded. + * (Default value: 0 = No debug ) + * + * \param threshold theshold level of messages to filter on. Messages at a + * higher level will be discarded. + * - Debug levels + * - 0 No debug + * - 1 Error + * - 2 State change + * - 3 Informational + * - 4 Verbose + */ +void mbedtls_debug_set_threshold( int threshold ); + +/** + * \brief Print a message to the debug output. This function is always used + * through the MBEDTLS_SSL_DEBUG_MSG() macro, which supplies the ssl + * context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the message has occurred in + * \param line line number the message has occurred at + * \param format format specifier, in printf format + * \param ... variables used by the format specifier + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *format, ... ); + +/** + * \brief Print the return value of a function to the debug output. This + * function is always used through the MBEDTLS_SSL_DEBUG_RET() macro, + * which supplies the ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text the name of the function that returned the error + * \param ret the return code value + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, int ret ); + +/** + * \brief Output a buffer of size len bytes to the debug output. This function + * is always used through the MBEDTLS_SSL_DEBUG_BUF() macro, + * which supplies the ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the buffer being dumped. Normally the + * variable or buffer name + * \param buf the buffer to be outputted + * \param len length of the buffer + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, const char *text, + const unsigned char *buf, size_t len ); + +#if defined(MBEDTLS_BIGNUM_C) +/** + * \brief Print a MPI variable to the debug output. This function is always + * used through the MBEDTLS_SSL_DEBUG_MPI() macro, which supplies the + * ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the MPI being output. Normally the + * variable name + * \param X the MPI variable + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_mpi *X ); +#endif + +#if defined(MBEDTLS_ECP_C) +/** + * \brief Print an ECP point to the debug output. This function is always + * used through the MBEDTLS_SSL_DEBUG_ECP() macro, which supplies the + * ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the ECP point being output. Normally the + * variable name + * \param X the ECP point + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_ecp_point *X ); +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Print a X.509 certificate structure to the debug output. This + * function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro, + * which supplies the ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the certificate being output + * \param crt X.509 certificate structure + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_x509_crt *crt ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* debug.h */ + diff --git a/include/mbedtls/des.h b/include/mbedtls/des.h new file mode 100644 index 0000000..5ca2ecf --- /dev/null +++ b/include/mbedtls/des.h @@ -0,0 +1,306 @@ +/** + * \file des.h + * + * \brief DES block cipher + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_DES_H +#define MBEDTLS_DES_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#define MBEDTLS_DES_ENCRYPT 1 +#define MBEDTLS_DES_DECRYPT 0 + +#define MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH -0x0032 /**< The data input has an invalid length. */ + +#define MBEDTLS_DES_KEY_SIZE 8 + +#if !defined(MBEDTLS_DES_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief DES context structure + */ +typedef struct +{ + uint32_t sk[32]; /*!< DES subkeys */ +} +mbedtls_des_context; + +/** + * \brief Triple-DES context structure + */ +typedef struct +{ + uint32_t sk[96]; /*!< 3DES subkeys */ +} +mbedtls_des3_context; + +/** + * \brief Initialize DES context + * + * \param ctx DES context to be initialized + */ +void mbedtls_des_init( mbedtls_des_context *ctx ); + +/** + * \brief Clear DES context + * + * \param ctx DES context to be cleared + */ +void mbedtls_des_free( mbedtls_des_context *ctx ); + +/** + * \brief Initialize Triple-DES context + * + * \param ctx DES3 context to be initialized + */ +void mbedtls_des3_init( mbedtls_des3_context *ctx ); + +/** + * \brief Clear Triple-DES context + * + * \param ctx DES3 context to be cleared + */ +void mbedtls_des3_free( mbedtls_des3_context *ctx ); + +/** + * \brief Set key parity on the given key to odd. + * + * DES keys are 56 bits long, but each byte is padded with + * a parity bit to allow verification. + * + * \param key 8-byte secret key + */ +void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] ); + +/** + * \brief Check that key parity on the given key is odd. + * + * DES keys are 56 bits long, but each byte is padded with + * a parity bit to allow verification. + * + * \param key 8-byte secret key + * + * \return 0 is parity was ok, 1 if parity was not correct. + */ +int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] ); + +/** + * \brief Check that key is not a weak or semi-weak DES key + * + * \param key 8-byte secret key + * + * \return 0 if no weak key was found, 1 if a weak key was identified. + */ +int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] ); + +/** + * \brief DES key schedule (56-bit, encryption) + * + * \param ctx DES context to be initialized + * \param key 8-byte secret key + * + * \return 0 + */ +int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] ); + +/** + * \brief DES key schedule (56-bit, decryption) + * + * \param ctx DES context to be initialized + * \param key 8-byte secret key + * + * \return 0 + */ +int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] ); + +/** + * \brief Triple-DES key schedule (112-bit, encryption) + * + * \param ctx 3DES context to be initialized + * \param key 16-byte secret key + * + * \return 0 + */ +int mbedtls_des3_set2key_enc( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] ); + +/** + * \brief Triple-DES key schedule (112-bit, decryption) + * + * \param ctx 3DES context to be initialized + * \param key 16-byte secret key + * + * \return 0 + */ +int mbedtls_des3_set2key_dec( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] ); + +/** + * \brief Triple-DES key schedule (168-bit, encryption) + * + * \param ctx 3DES context to be initialized + * \param key 24-byte secret key + * + * \return 0 + */ +int mbedtls_des3_set3key_enc( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] ); + +/** + * \brief Triple-DES key schedule (168-bit, decryption) + * + * \param ctx 3DES context to be initialized + * \param key 24-byte secret key + * + * \return 0 + */ +int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] ); + +/** + * \brief DES-ECB block encryption/decryption + * + * \param ctx DES context + * \param input 64-bit input block + * \param output 64-bit output block + * + * \return 0 if successful + */ +int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx, + const unsigned char input[8], + unsigned char output[8] ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief DES-CBC buffer encryption/decryption + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx DES context + * \param mode MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + */ +int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx, + int mode, + size_t length, + unsigned char iv[8], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +/** + * \brief 3DES-ECB block encryption/decryption + * + * \param ctx 3DES context + * \param input 64-bit input block + * \param output 64-bit output block + * + * \return 0 if successful + */ +int mbedtls_des3_crypt_ecb( mbedtls_des3_context *ctx, + const unsigned char input[8], + unsigned char output[8] ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief 3DES-CBC buffer encryption/decryption + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx 3DES context + * \param mode MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful, or MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH + */ +int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx, + int mode, + size_t length, + unsigned char iv[8], + const unsigned char *input, + unsigned char *output ); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +/** + * \brief Internal function for key expansion. + * (Only exposed to allow overriding it, + * see MBEDTLS_DES_SETKEY_ALT) + * + * \param SK Round keys + * \param key Base key + */ +void mbedtls_des_setkey( uint32_t SK[32], + const unsigned char key[MBEDTLS_DES_KEY_SIZE] ); +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_DES_ALT */ +#include "des_alt.h" +#endif /* MBEDTLS_DES_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_des_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* des.h */ diff --git a/include/mbedtls/dhm.h b/include/mbedtls/dhm.h new file mode 100644 index 0000000..d7ab152 --- /dev/null +++ b/include/mbedtls/dhm.h @@ -0,0 +1,305 @@ +/** + * \file dhm.h + * + * \brief Diffie-Hellman-Merkle key exchange + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_DHM_H +#define MBEDTLS_DHM_H + +#include "bignum.h" + +/* + * DHM Error codes + */ +#define MBEDTLS_ERR_DHM_BAD_INPUT_DATA -0x3080 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_DHM_READ_PARAMS_FAILED -0x3100 /**< Reading of the DHM parameters failed. */ +#define MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED -0x3180 /**< Making of the DHM parameters failed. */ +#define MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED -0x3200 /**< Reading of the public values failed. */ +#define MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED -0x3280 /**< Making of the public value failed. */ +#define MBEDTLS_ERR_DHM_CALC_SECRET_FAILED -0x3300 /**< Calculation of the DHM secret failed. */ +#define MBEDTLS_ERR_DHM_INVALID_FORMAT -0x3380 /**< The ASN.1 data is not formatted correctly. */ +#define MBEDTLS_ERR_DHM_ALLOC_FAILED -0x3400 /**< Allocation of memory failed. */ +#define MBEDTLS_ERR_DHM_FILE_IO_ERROR -0x3480 /**< Read/write of file failed. */ + +/** + * RFC 3526 defines a number of standardized Diffie-Hellman groups + * for IKE. + * RFC 5114 defines a number of standardized Diffie-Hellman groups + * that can be used. + * + * Some are included here for convenience. + * + * Included are: + * RFC 3526 3. 2048-bit MODP Group + * RFC 3526 4. 3072-bit MODP Group + * RFC 3526 5. 4096-bit MODP Group + * RFC 5114 2.2. 2048-bit MODP Group with 224-bit Prime Order Subgroup + */ +#define MBEDTLS_DHM_RFC3526_MODP_2048_P \ + "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" \ + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" \ + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" \ + "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" \ + "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" \ + "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" \ + "83655D23DCA3AD961C62F356208552BB9ED529077096966D" \ + "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" \ + "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" \ + "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" \ + "15728E5A8AACAA68FFFFFFFFFFFFFFFF" + +#define MBEDTLS_DHM_RFC3526_MODP_2048_G "02" + +#define MBEDTLS_DHM_RFC3526_MODP_3072_P \ + "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" \ + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" \ + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" \ + "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" \ + "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" \ + "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" \ + "83655D23DCA3AD961C62F356208552BB9ED529077096966D" \ + "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" \ + "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" \ + "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" \ + "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" \ + "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" \ + "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" \ + "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" \ + "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" \ + "43DB5BFCE0FD108E4B82D120A93AD2CAFFFFFFFFFFFFFFFF" + +#define MBEDTLS_DHM_RFC3526_MODP_3072_G "02" + +#define MBEDTLS_DHM_RFC3526_MODP_4096_P \ + "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" \ + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" \ + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" \ + "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" \ + "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" \ + "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" \ + "83655D23DCA3AD961C62F356208552BB9ED529077096966D" \ + "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" \ + "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" \ + "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" \ + "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" \ + "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" \ + "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" \ + "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" \ + "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" \ + "43DB5BFCE0FD108E4B82D120A92108011A723C12A787E6D7" \ + "88719A10BDBA5B2699C327186AF4E23C1A946834B6150BDA" \ + "2583E9CA2AD44CE8DBBBC2DB04DE8EF92E8EFC141FBECAA6" \ + "287C59474E6BC05D99B2964FA090C3A2233BA186515BE7ED" \ + "1F612970CEE2D7AFB81BDD762170481CD0069127D5B05AA9" \ + "93B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199" \ + "FFFFFFFFFFFFFFFF" + +#define MBEDTLS_DHM_RFC3526_MODP_4096_G "02" + +#define MBEDTLS_DHM_RFC5114_MODP_2048_P \ + "AD107E1E9123A9D0D660FAA79559C51FA20D64E5683B9FD1" \ + "B54B1597B61D0A75E6FA141DF95A56DBAF9A3C407BA1DF15" \ + "EB3D688A309C180E1DE6B85A1274A0A66D3F8152AD6AC212" \ + "9037C9EDEFDA4DF8D91E8FEF55B7394B7AD5B7D0B6C12207" \ + "C9F98D11ED34DBF6C6BA0B2C8BBC27BE6A00E0A0B9C49708" \ + "B3BF8A317091883681286130BC8985DB1602E714415D9330" \ + "278273C7DE31EFDC7310F7121FD5A07415987D9ADC0A486D" \ + "CDF93ACC44328387315D75E198C641A480CD86A1B9E587E8" \ + "BE60E69CC928B2B9C52172E413042E9B23F10B0E16E79763" \ + "C9B53DCF4BA80A29E3FB73C16B8E75B97EF363E2FFA31F71" \ + "CF9DE5384E71B81C0AC4DFFE0C10E64F" + +#define MBEDTLS_DHM_RFC5114_MODP_2048_G \ + "AC4032EF4F2D9AE39DF30B5C8FFDAC506CDEBE7B89998CAF"\ + "74866A08CFE4FFE3A6824A4E10B9A6F0DD921F01A70C4AFA"\ + "AB739D7700C29F52C57DB17C620A8652BE5E9001A8D66AD7"\ + "C17669101999024AF4D027275AC1348BB8A762D0521BC98A"\ + "E247150422EA1ED409939D54DA7460CDB5F6C6B250717CBE"\ + "F180EB34118E98D119529A45D6F834566E3025E316A330EF"\ + "BB77A86F0C1AB15B051AE3D428C8F8ACB70A8137150B8EEB"\ + "10E183EDD19963DDD9E263E4770589EF6AA21E7F5F2FF381"\ + "B539CCE3409D13CD566AFBB48D6C019181E1BCFE94B30269"\ + "EDFE72FE9B6AA4BD7B5A0F1C71CFFF4C19C418E1F6EC0179"\ + "81BC087F2A7065B384B890D3191F2BFA" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief DHM context structure + */ +typedef struct +{ + size_t len; /*!< size(P) in chars */ + mbedtls_mpi P; /*!< prime modulus */ + mbedtls_mpi G; /*!< generator */ + mbedtls_mpi X; /*!< secret value */ + mbedtls_mpi GX; /*!< self = G^X mod P */ + mbedtls_mpi GY; /*!< peer = G^Y mod P */ + mbedtls_mpi K; /*!< key = GY^X mod P */ + mbedtls_mpi RP; /*!< cached R^2 mod P */ + mbedtls_mpi Vi; /*!< blinding value */ + mbedtls_mpi Vf; /*!< un-blinding value */ + mbedtls_mpi pX; /*!< previous X */ +} +mbedtls_dhm_context; + +/** + * \brief Initialize DHM context + * + * \param ctx DHM context to be initialized + */ +void mbedtls_dhm_init( mbedtls_dhm_context *ctx ); + +/** + * \brief Parse the ServerKeyExchange parameters + * + * \param ctx DHM context + * \param p &(start of input buffer) + * \param end end of buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code + */ +int mbedtls_dhm_read_params( mbedtls_dhm_context *ctx, + unsigned char **p, + const unsigned char *end ); + +/** + * \brief Setup and write the ServerKeyExchange parameters + * + * \param ctx DHM context + * \param x_size private value size in bytes + * \param output destination buffer + * \param olen number of chars written + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \note This function assumes that ctx->P and ctx->G + * have already been properly set (for example + * using mbedtls_mpi_read_string or mbedtls_mpi_read_binary). + * + * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code + */ +int mbedtls_dhm_make_params( mbedtls_dhm_context *ctx, int x_size, + unsigned char *output, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Import the peer's public value G^Y + * + * \param ctx DHM context + * \param input input buffer + * \param ilen size of buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code + */ +int mbedtls_dhm_read_public( mbedtls_dhm_context *ctx, + const unsigned char *input, size_t ilen ); + +/** + * \brief Create own private value X and export G^X + * + * \param ctx DHM context + * \param x_size private value size in bytes + * \param output destination buffer + * \param olen must be at least equal to the size of P, ctx->len + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code + */ +int mbedtls_dhm_make_public( mbedtls_dhm_context *ctx, int x_size, + unsigned char *output, size_t olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Derive and export the shared secret (G^Y)^X mod P + * + * \param ctx DHM context + * \param output destination buffer + * \param output_size size of the destination buffer + * \param olen on exit, holds the actual number of bytes written + * \param f_rng RNG function, for blinding purposes + * \param p_rng RNG parameter + * + * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code + * + * \note If non-NULL, f_rng is used to blind the input as + * countermeasure against timing attacks. Blinding is + * automatically used if and only if our secret value X is + * re-used and costs nothing otherwise, so it is recommended + * to always pass a non-NULL f_rng argument. + */ +int mbedtls_dhm_calc_secret( mbedtls_dhm_context *ctx, + unsigned char *output, size_t output_size, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Free and clear the components of a DHM key + * + * \param ctx DHM context to free and clear + */ +void mbedtls_dhm_free( mbedtls_dhm_context *ctx ); + +#if defined(MBEDTLS_ASN1_PARSE_C) +/** \ingroup x509_module */ +/** + * \brief Parse DHM parameters in PEM or DER format + * + * \param dhm DHM context to be initialized + * \param dhmin input buffer + * \param dhminlen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if successful, or a specific DHM or PEM error code + */ +int mbedtls_dhm_parse_dhm( mbedtls_dhm_context *dhm, const unsigned char *dhmin, + size_t dhminlen ); + +#if defined(MBEDTLS_FS_IO) +/** \ingroup x509_module */ +/** + * \brief Load and parse DHM parameters + * + * \param dhm DHM context to be initialized + * \param path filename to read the DHM Parameters from + * + * \return 0 if successful, or a specific DHM or PEM error code + */ +int mbedtls_dhm_parse_dhmfile( mbedtls_dhm_context *dhm, const char *path ); +#endif /* MBEDTLS_FS_IO */ +#endif /* MBEDTLS_ASN1_PARSE_C */ + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_dhm_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* dhm.h */ diff --git a/include/mbedtls/ecdh.h b/include/mbedtls/ecdh.h new file mode 100644 index 0000000..625a281 --- /dev/null +++ b/include/mbedtls/ecdh.h @@ -0,0 +1,214 @@ +/** + * \file ecdh.h + * + * \brief Elliptic curve Diffie-Hellman + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ECDH_H +#define MBEDTLS_ECDH_H + +#include "ecp.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * When importing from an EC key, select if it is our key or the peer's key + */ +typedef enum +{ + MBEDTLS_ECDH_OURS, + MBEDTLS_ECDH_THEIRS, +} mbedtls_ecdh_side; + +/** + * \brief ECDH context structure + */ +typedef struct +{ + mbedtls_ecp_group grp; /*!< elliptic curve used */ + mbedtls_mpi d; /*!< our secret value (private key) */ + mbedtls_ecp_point Q; /*!< our public value (public key) */ + mbedtls_ecp_point Qp; /*!< peer's public value (public key) */ + mbedtls_mpi z; /*!< shared secret */ + int point_format; /*!< format for point export in TLS messages */ + mbedtls_ecp_point Vi; /*!< blinding value (for later) */ + mbedtls_ecp_point Vf; /*!< un-blinding value (for later) */ + mbedtls_mpi _d; /*!< previous d (for later) */ +} +mbedtls_ecdh_context; + +/** + * \brief Generate a public key. + * Raw function that only does the core computation. + * + * \param grp ECP group + * \param d Destination MPI (secret exponent, aka private key) + * \param Q Destination point (public key) + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + */ +int mbedtls_ecdh_gen_public( mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Compute shared secret + * Raw function that only does the core computation. + * + * \param grp ECP group + * \param z Destination MPI (shared secret) + * \param Q Public key from other party + * \param d Our secret exponent (private key) + * \param f_rng RNG function (see notes) + * \param p_rng RNG parameter + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + * + * \note If f_rng is not NULL, it is used to implement + * countermeasures against potential elaborate timing + * attacks, see \c mbedtls_ecp_mul() for details. + */ +int mbedtls_ecdh_compute_shared( mbedtls_ecp_group *grp, mbedtls_mpi *z, + const mbedtls_ecp_point *Q, const mbedtls_mpi *d, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Initialize context + * + * \param ctx Context to initialize + */ +void mbedtls_ecdh_init( mbedtls_ecdh_context *ctx ); + +/** + * \brief Free context + * + * \param ctx Context to free + */ +void mbedtls_ecdh_free( mbedtls_ecdh_context *ctx ); + +/** + * \brief Generate a public key and a TLS ServerKeyExchange payload. + * (First function used by a TLS server for ECDHE.) + * + * \param ctx ECDH context + * \param olen number of chars written + * \param buf destination buffer + * \param blen length of buffer + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \note This function assumes that ctx->grp has already been + * properly set (for example using mbedtls_ecp_group_load). + * + * \return 0 if successful, or an MBEDTLS_ERR_ECP_XXX error code + */ +int mbedtls_ecdh_make_params( mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Parse and procress a TLS ServerKeyExhange payload. + * (First function used by a TLS client for ECDHE.) + * + * \param ctx ECDH context + * \param buf pointer to start of input buffer + * \param end one past end of buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_ECP_XXX error code + */ +int mbedtls_ecdh_read_params( mbedtls_ecdh_context *ctx, + const unsigned char **buf, const unsigned char *end ); + +/** + * \brief Setup an ECDH context from an EC key. + * (Used by clients and servers in place of the + * ServerKeyEchange for static ECDH: import ECDH parameters + * from a certificate's EC key information.) + * + * \param ctx ECDH constext to set + * \param key EC key to use + * \param side Is it our key (1) or the peer's key (0) ? + * + * \return 0 if successful, or an MBEDTLS_ERR_ECP_XXX error code + */ +int mbedtls_ecdh_get_params( mbedtls_ecdh_context *ctx, const mbedtls_ecp_keypair *key, + mbedtls_ecdh_side side ); + +/** + * \brief Generate a public key and a TLS ClientKeyExchange payload. + * (Second function used by a TLS client for ECDH(E).) + * + * \param ctx ECDH context + * \param olen number of bytes actually written + * \param buf destination buffer + * \param blen size of destination buffer + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, or an MBEDTLS_ERR_ECP_XXX error code + */ +int mbedtls_ecdh_make_public( mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Parse and process a TLS ClientKeyExchange payload. + * (Second function used by a TLS server for ECDH(E).) + * + * \param ctx ECDH context + * \param buf start of input buffer + * \param blen length of input buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_ECP_XXX error code + */ +int mbedtls_ecdh_read_public( mbedtls_ecdh_context *ctx, + const unsigned char *buf, size_t blen ); + +/** + * \brief Derive and export the shared secret. + * (Last function used by both TLS client en servers.) + * + * \param ctx ECDH context + * \param olen number of bytes written + * \param buf destination buffer + * \param blen buffer length + * \param f_rng RNG function, see notes for \c mbedtls_ecdh_compute_shared() + * \param p_rng RNG parameter + * + * \return 0 if successful, or an MBEDTLS_ERR_ECP_XXX error code + */ +int mbedtls_ecdh_calc_secret( mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +#ifdef __cplusplus +} +#endif + +#endif /* ecdh.h */ diff --git a/include/mbedtls/ecdsa.h b/include/mbedtls/ecdsa.h new file mode 100644 index 0000000..52827d8 --- /dev/null +++ b/include/mbedtls/ecdsa.h @@ -0,0 +1,248 @@ +/** + * \file ecdsa.h + * + * \brief Elliptic curve DSA + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ECDSA_H +#define MBEDTLS_ECDSA_H + +#include "ecp.h" +#include "md.h" + +/* + * RFC 4492 page 20: + * + * Ecdsa-Sig-Value ::= SEQUENCE { + * r INTEGER, + * s INTEGER + * } + * + * Size is at most + * 1 (tag) + 1 (len) + 1 (initial 0) + ECP_MAX_BYTES for each of r and s, + * twice that + 1 (tag) + 2 (len) for the sequence + * (assuming ECP_MAX_BYTES is less than 126 for r and s, + * and less than 124 (total len <= 255) for the sequence) + */ +#if MBEDTLS_ECP_MAX_BYTES > 124 +#error "MBEDTLS_ECP_MAX_BYTES bigger than expected, please fix MBEDTLS_ECDSA_MAX_LEN" +#endif +/** Maximum size of an ECDSA signature in bytes */ +#define MBEDTLS_ECDSA_MAX_LEN ( 3 + 2 * ( 3 + MBEDTLS_ECP_MAX_BYTES ) ) + +/** + * \brief ECDSA context structure + */ +typedef mbedtls_ecp_keypair mbedtls_ecdsa_context; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Compute ECDSA signature of a previously hashed message + * + * \note The deterministic version is usually prefered. + * + * \param grp ECP group + * \param r First output integer + * \param s Second output integer + * \param d Private signing key + * \param buf Message hash + * \param blen Length of buf + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + */ +int mbedtls_ecdsa_sign( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, + const mbedtls_mpi *d, const unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) +/** + * \brief Compute ECDSA signature of a previously hashed message, + * deterministic version (RFC 6979). + * + * \param grp ECP group + * \param r First output integer + * \param s Second output integer + * \param d Private signing key + * \param buf Message hash + * \param blen Length of buf + * \param md_alg MD algorithm used to hash the message + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + */ +int mbedtls_ecdsa_sign_det( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, + const mbedtls_mpi *d, const unsigned char *buf, size_t blen, + mbedtls_md_type_t md_alg ); +#endif /* MBEDTLS_ECDSA_DETERMINISTIC */ + +/** + * \brief Verify ECDSA signature of a previously hashed message + * + * \param grp ECP group + * \param buf Message hash + * \param blen Length of buf + * \param Q Public key to use for verification + * \param r First integer of the signature + * \param s Second integer of the signature + * + * \return 0 if successful, + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA if signature is invalid + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + */ +int mbedtls_ecdsa_verify( mbedtls_ecp_group *grp, + const unsigned char *buf, size_t blen, + const mbedtls_ecp_point *Q, const mbedtls_mpi *r, const mbedtls_mpi *s); + +/** + * \brief Compute ECDSA signature and write it to buffer, + * serialized as defined in RFC 4492 page 20. + * (Not thread-safe to use same context in multiple threads) + * + * \note The deterministice version (RFC 6979) is used if + * MBEDTLS_ECDSA_DETERMINISTIC is defined. + * + * \param ctx ECDSA context + * \param md_alg Algorithm that was used to hash the message + * \param hash Message hash + * \param hlen Length of hash + * \param sig Buffer that will hold the signature + * \param slen Length of the signature written + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \note The "sig" buffer must be at least as large as twice the + * size of the curve used, plus 9 (eg. 73 bytes if a 256-bit + * curve is used). MBEDTLS_ECDSA_MAX_LEN is always safe. + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX, MBEDTLS_ERR_MPI_XXX or + * MBEDTLS_ERR_ASN1_XXX error code + */ +int mbedtls_ecdsa_write_signature( mbedtls_ecdsa_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hlen, + unsigned char *sig, size_t *slen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) +#if ! defined(MBEDTLS_DEPRECATED_REMOVED) +#if defined(MBEDTLS_DEPRECATED_WARNING) +#define MBEDTLS_DEPRECATED __attribute__((deprecated)) +#else +#define MBEDTLS_DEPRECATED +#endif +/** + * \brief Compute ECDSA signature and write it to buffer, + * serialized as defined in RFC 4492 page 20. + * Deterministic version, RFC 6979. + * (Not thread-safe to use same context in multiple threads) + * + * \deprecated Superseded by mbedtls_ecdsa_write_signature() in 2.0.0 + * + * \param ctx ECDSA context + * \param hash Message hash + * \param hlen Length of hash + * \param sig Buffer that will hold the signature + * \param slen Length of the signature written + * \param md_alg MD algorithm used to hash the message + * + * \note The "sig" buffer must be at least as large as twice the + * size of the curve used, plus 9 (eg. 73 bytes if a 256-bit + * curve is used). MBEDTLS_ECDSA_MAX_LEN is always safe. + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX, MBEDTLS_ERR_MPI_XXX or + * MBEDTLS_ERR_ASN1_XXX error code + */ +int mbedtls_ecdsa_write_signature_det( mbedtls_ecdsa_context *ctx, + const unsigned char *hash, size_t hlen, + unsigned char *sig, size_t *slen, + mbedtls_md_type_t md_alg ) MBEDTLS_DEPRECATED; +#undef MBEDTLS_DEPRECATED +#endif /* MBEDTLS_DEPRECATED_REMOVED */ +#endif /* MBEDTLS_ECDSA_DETERMINISTIC */ + +/** + * \brief Read and verify an ECDSA signature + * + * \param ctx ECDSA context + * \param hash Message hash + * \param hlen Size of hash + * \param sig Signature to read and verify + * \param slen Size of sig + * + * \return 0 if successful, + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA if signature is invalid, + * MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH if the signature is + * valid but its actual length is less than siglen, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_ERR_MPI_XXX error code + */ +int mbedtls_ecdsa_read_signature( mbedtls_ecdsa_context *ctx, + const unsigned char *hash, size_t hlen, + const unsigned char *sig, size_t slen ); + +/** + * \brief Generate an ECDSA keypair on the given curve + * + * \param ctx ECDSA context in which the keypair should be stored + * \param gid Group (elliptic curve) to use. One of the various + * MBEDTLS_ECP_DP_XXX macros depending on configuration. + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 on success, or a MBEDTLS_ERR_ECP_XXX code. + */ +int mbedtls_ecdsa_genkey( mbedtls_ecdsa_context *ctx, mbedtls_ecp_group_id gid, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +/** + * \brief Set an ECDSA context from an EC key pair + * + * \param ctx ECDSA context to set + * \param key EC key to use + * + * \return 0 on success, or a MBEDTLS_ERR_ECP_XXX code. + */ +int mbedtls_ecdsa_from_keypair( mbedtls_ecdsa_context *ctx, const mbedtls_ecp_keypair *key ); + +/** + * \brief Initialize context + * + * \param ctx Context to initialize + */ +void mbedtls_ecdsa_init( mbedtls_ecdsa_context *ctx ); + +/** + * \brief Free context + * + * \param ctx Context to free + */ +void mbedtls_ecdsa_free( mbedtls_ecdsa_context *ctx ); + +#ifdef __cplusplus +} +#endif + +#endif /* ecdsa.h */ diff --git a/include/mbedtls/ecjpake.h b/include/mbedtls/ecjpake.h new file mode 100644 index 0000000..b7b6160 --- /dev/null +++ b/include/mbedtls/ecjpake.h @@ -0,0 +1,238 @@ +/** + * \file ecjpake.h + * + * \brief Elliptic curve J-PAKE + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ECJPAKE_H +#define MBEDTLS_ECJPAKE_H + +/* + * J-PAKE is a password-authenticated key exchange that allows deriving a + * strong shared secret from a (potentially low entropy) pre-shared + * passphrase, with forward secrecy and mutual authentication. + * https://en.wikipedia.org/wiki/Password_Authenticated_Key_Exchange_by_Juggling + * + * This file implements the Elliptic Curve variant of J-PAKE, + * as defined in Chapter 7.4 of the Thread v1.0 Specification, + * available to members of the Thread Group http://threadgroup.org/ + * + * As the J-PAKE algorithm is inherently symmetric, so is our API. + * Each party needs to send its first round message, in any order, to the + * other party, then each sends its second round message, in any order. + * The payloads are serialized in a way suitable for use in TLS, but could + * also be use outside TLS. + */ + +#include "ecp.h" +#include "md.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Roles in the EC J-PAKE exchange + */ +typedef enum { + MBEDTLS_ECJPAKE_CLIENT = 0, /**< Client */ + MBEDTLS_ECJPAKE_SERVER, /**< Server */ +} mbedtls_ecjpake_role; + +/** + * EC J-PAKE context structure. + * + * J-PAKE is a symmetric protocol, except for the identifiers used in + * Zero-Knowledge Proofs, and the serialization of the second message + * (KeyExchange) as defined by the Thread spec. + * + * In order to benefit from this symmetry, we choose a different naming + * convetion from the Thread v1.0 spec. Correspondance is indicated in the + * description as a pair C: client name, S: server name + */ +typedef struct +{ + const mbedtls_md_info_t *md_info; /**< Hash to use */ + mbedtls_ecp_group grp; /**< Elliptic curve */ + mbedtls_ecjpake_role role; /**< Are we client or server? */ + int point_format; /**< Format for point export */ + + mbedtls_ecp_point Xm1; /**< My public key 1 C: X1, S: X3 */ + mbedtls_ecp_point Xm2; /**< My public key 2 C: X2, S: X4 */ + mbedtls_ecp_point Xp1; /**< Peer public key 1 C: X3, S: X1 */ + mbedtls_ecp_point Xp2; /**< Peer public key 2 C: X4, S: X2 */ + mbedtls_ecp_point Xp; /**< Peer public key C: Xs, S: Xc */ + + mbedtls_mpi xm1; /**< My private key 1 C: x1, S: x3 */ + mbedtls_mpi xm2; /**< My private key 2 C: x2, S: x4 */ + + mbedtls_mpi s; /**< Pre-shared secret (passphrase) */ +} mbedtls_ecjpake_context; + +/** + * \brief Initialize a context + * (just makes it ready for setup() or free()). + * + * \param ctx context to initialize + */ +void mbedtls_ecjpake_init( mbedtls_ecjpake_context *ctx ); + +/** + * \brief Set up a context for use + * + * \note Currently the only values for hash/curve allowed by the + * standard are MBEDTLS_MD_SHA256/MBEDTLS_ECP_DP_SECP256R1. + * + * \param ctx context to set up + * \param role Our role: client or server + * \param hash hash function to use (MBEDTLS_MD_XXX) + * \param curve elliptic curve identifier (MBEDTLS_ECP_DP_XXX) + * \param secret pre-shared secret (passphrase) + * \param len length of the shared secret + * + * \return 0 if successfull, + * a negative error code otherwise + */ +int mbedtls_ecjpake_setup( mbedtls_ecjpake_context *ctx, + mbedtls_ecjpake_role role, + mbedtls_md_type_t hash, + mbedtls_ecp_group_id curve, + const unsigned char *secret, + size_t len ); + +/* + * \brief Check if a context is ready for use + * + * \param ctx Context to check + * + * \return 0 if the context is ready for use, + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA otherwise + */ +int mbedtls_ecjpake_check( const mbedtls_ecjpake_context *ctx ); + +/** + * \brief Generate and write the first round message + * (TLS: contents of the Client/ServerHello extension, + * excluding extension type and length bytes) + * + * \param ctx Context to use + * \param buf Buffer to write the contents to + * \param len Buffer size + * \param olen Will be updated with the number of bytes written + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successfull, + * a negative error code otherwise + */ +int mbedtls_ecjpake_write_round_one( mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Read and process the first round message + * (TLS: contents of the Client/ServerHello extension, + * excluding extension type and length bytes) + * + * \param ctx Context to use + * \param buf Pointer to extension contents + * \param len Extension length + * + * \return 0 if successfull, + * a negative error code otherwise + */ +int mbedtls_ecjpake_read_round_one( mbedtls_ecjpake_context *ctx, + const unsigned char *buf, + size_t len ); + +/** + * \brief Generate and write the second round message + * (TLS: contents of the Client/ServerKeyExchange) + * + * \param ctx Context to use + * \param buf Buffer to write the contents to + * \param len Buffer size + * \param olen Will be updated with the number of bytes written + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successfull, + * a negative error code otherwise + */ +int mbedtls_ecjpake_write_round_two( mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Read and process the second round message + * (TLS: contents of the Client/ServerKeyExchange) + * + * \param ctx Context to use + * \param buf Pointer to the message + * \param len Message length + * + * \return 0 if successfull, + * a negative error code otherwise + */ +int mbedtls_ecjpake_read_round_two( mbedtls_ecjpake_context *ctx, + const unsigned char *buf, + size_t len ); + +/** + * \brief Derive the shared secret + * (TLS: Pre-Master Secret) + * + * \param ctx Context to use + * \param buf Buffer to write the contents to + * \param len Buffer size + * \param olen Will be updated with the number of bytes written + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successfull, + * a negative error code otherwise + */ +int mbedtls_ecjpake_derive_secret( mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Free a context's content + * + * \param ctx context to free + */ +void mbedtls_ecjpake_free( mbedtls_ecjpake_context *ctx ); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_ecjpake_self_test( int verbose ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* ecjpake.h */ diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h new file mode 100644 index 0000000..5246c78 --- /dev/null +++ b/include/mbedtls/ecp.h @@ -0,0 +1,669 @@ +/** + * \file ecp.h + * + * \brief Elliptic curves over GF(p) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ECP_H +#define MBEDTLS_ECP_H + +#include "bignum.h" + +/* + * ECP error codes + */ +#define MBEDTLS_ERR_ECP_BAD_INPUT_DATA -0x4F80 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL -0x4F00 /**< The buffer is too small to write to. */ +#define MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE -0x4E80 /**< Requested curve not available. */ +#define MBEDTLS_ERR_ECP_VERIFY_FAILED -0x4E00 /**< The signature is not valid. */ +#define MBEDTLS_ERR_ECP_ALLOC_FAILED -0x4D80 /**< Memory allocation failed. */ +#define MBEDTLS_ERR_ECP_RANDOM_FAILED -0x4D00 /**< Generation of random value, such as (ephemeral) key, failed. */ +#define MBEDTLS_ERR_ECP_INVALID_KEY -0x4C80 /**< Invalid private or public key. */ +#define MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH -0x4C00 /**< Signature is valid but shorter than the user-supplied length. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Domain parameters (curve, subgroup and generator) identifiers. + * + * Only curves over prime fields are supported. + * + * \warning This library does not support validation of arbitrary domain + * parameters. Therefore, only well-known domain parameters from trusted + * sources should be used. See mbedtls_ecp_group_load(). + */ +typedef enum +{ + MBEDTLS_ECP_DP_NONE = 0, + MBEDTLS_ECP_DP_SECP192R1, /*!< 192-bits NIST curve */ + MBEDTLS_ECP_DP_SECP224R1, /*!< 224-bits NIST curve */ + MBEDTLS_ECP_DP_SECP256R1, /*!< 256-bits NIST curve */ + MBEDTLS_ECP_DP_SECP384R1, /*!< 384-bits NIST curve */ + MBEDTLS_ECP_DP_SECP521R1, /*!< 521-bits NIST curve */ + MBEDTLS_ECP_DP_BP256R1, /*!< 256-bits Brainpool curve */ + MBEDTLS_ECP_DP_BP384R1, /*!< 384-bits Brainpool curve */ + MBEDTLS_ECP_DP_BP512R1, /*!< 512-bits Brainpool curve */ + MBEDTLS_ECP_DP_CURVE25519, /*!< Curve25519 */ + MBEDTLS_ECP_DP_SECP192K1, /*!< 192-bits "Koblitz" curve */ + MBEDTLS_ECP_DP_SECP224K1, /*!< 224-bits "Koblitz" curve */ + MBEDTLS_ECP_DP_SECP256K1, /*!< 256-bits "Koblitz" curve */ +} mbedtls_ecp_group_id; + +/** + * Number of supported curves (plus one for NONE). + * + * (Montgomery curves excluded for now.) + */ +#define MBEDTLS_ECP_DP_MAX 12 + +/** + * Curve information for use by other modules + */ +typedef struct +{ + mbedtls_ecp_group_id grp_id; /*!< Internal identifier */ + uint16_t tls_id; /*!< TLS NamedCurve identifier */ + uint16_t bit_size; /*!< Curve size in bits */ + const char *name; /*!< Human-friendly name */ +} mbedtls_ecp_curve_info; + +/** + * \brief ECP point structure (jacobian coordinates) + * + * \note All functions expect and return points satisfying + * the following condition: Z == 0 or Z == 1. (Other + * values of Z are used by internal functions only.) + * The point is zero, or "at infinity", if Z == 0. + * Otherwise, X and Y are its standard (affine) coordinates. + */ +typedef struct +{ + mbedtls_mpi X; /*!< the point's X coordinate */ + mbedtls_mpi Y; /*!< the point's Y coordinate */ + mbedtls_mpi Z; /*!< the point's Z coordinate */ +} +mbedtls_ecp_point; + +/** + * \brief ECP group structure + * + * We consider two types of curves equations: + * 1. Short Weierstrass y^2 = x^3 + A x + B mod P (SEC1 + RFC 4492) + * 2. Montgomery, y^2 = x^3 + A x^2 + x mod P (Curve25519 + draft) + * In both cases, a generator G for a prime-order subgroup is fixed. In the + * short weierstrass, this subgroup is actually the whole curve, and its + * cardinal is denoted by N. + * + * In the case of Short Weierstrass curves, our code requires that N is an odd + * prime. (Use odd in mbedtls_ecp_mul() and prime in mbedtls_ecdsa_sign() for blinding.) + * + * In the case of Montgomery curves, we don't store A but (A + 2) / 4 which is + * the quantity actually used in the formulas. Also, nbits is not the size of N + * but the required size for private keys. + * + * If modp is NULL, reduction modulo P is done using a generic algorithm. + * Otherwise, it must point to a function that takes an mbedtls_mpi in the range + * 0..2^(2*pbits)-1 and transforms it in-place in an integer of little more + * than pbits, so that the integer may be efficiently brought in the 0..P-1 + * range by a few additions or substractions. It must return 0 on success and + * non-zero on failure. + */ +typedef struct +{ + mbedtls_ecp_group_id id; /*!< internal group identifier */ + mbedtls_mpi P; /*!< prime modulus of the base field */ + mbedtls_mpi A; /*!< 1. A in the equation, or 2. (A + 2) / 4 */ + mbedtls_mpi B; /*!< 1. B in the equation, or 2. unused */ + mbedtls_ecp_point G; /*!< generator of the (sub)group used */ + mbedtls_mpi N; /*!< 1. the order of G, or 2. unused */ + size_t pbits; /*!< number of bits in P */ + size_t nbits; /*!< number of bits in 1. P, or 2. private keys */ + unsigned int h; /*!< internal: 1 if the constants are static */ + int (*modp)(mbedtls_mpi *); /*!< function for fast reduction mod P */ + int (*t_pre)(mbedtls_ecp_point *, void *); /*!< unused */ + int (*t_post)(mbedtls_ecp_point *, void *); /*!< unused */ + void *t_data; /*!< unused */ + mbedtls_ecp_point *T; /*!< pre-computed points for ecp_mul_comb() */ + size_t T_size; /*!< number for pre-computed points */ +} +mbedtls_ecp_group; + +/** + * \brief ECP key pair structure + * + * A generic key pair that could be used for ECDSA, fixed ECDH, etc. + * + * \note Members purposefully in the same order as struc mbedtls_ecdsa_context. + */ +typedef struct +{ + mbedtls_ecp_group grp; /*!< Elliptic curve and base point */ + mbedtls_mpi d; /*!< our secret value */ + mbedtls_ecp_point Q; /*!< our public value */ +} +mbedtls_ecp_keypair; + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_ECP_MAX_BITS) +/** + * Maximum size of the groups (that is, of N and P) + */ +#define MBEDTLS_ECP_MAX_BITS 521 /**< Maximum bit size of groups */ +#endif + +#define MBEDTLS_ECP_MAX_BYTES ( ( MBEDTLS_ECP_MAX_BITS + 7 ) / 8 ) +#define MBEDTLS_ECP_MAX_PT_LEN ( 2 * MBEDTLS_ECP_MAX_BYTES + 1 ) + +#if !defined(MBEDTLS_ECP_WINDOW_SIZE) +/* + * Maximum "window" size used for point multiplication. + * Default: 6. + * Minimum value: 2. Maximum value: 7. + * + * Result is an array of at most ( 1 << ( MBEDTLS_ECP_WINDOW_SIZE - 1 ) ) + * points used for point multiplication. This value is directly tied to EC + * peak memory usage, so decreasing it by one should roughly cut memory usage + * by two (if large curves are in use). + * + * Reduction in size may reduce speed, but larger curves are impacted first. + * Sample performances (in ECDHE handshakes/s, with FIXED_POINT_OPTIM = 1): + * w-size: 6 5 4 3 2 + * 521 145 141 135 120 97 + * 384 214 209 198 177 146 + * 256 320 320 303 262 226 + + * 224 475 475 453 398 342 + * 192 640 640 633 587 476 + */ +#define MBEDTLS_ECP_WINDOW_SIZE 6 /**< Maximum window size used */ +#endif /* MBEDTLS_ECP_WINDOW_SIZE */ + +#if !defined(MBEDTLS_ECP_FIXED_POINT_OPTIM) +/* + * Trade memory for speed on fixed-point multiplication. + * + * This speeds up repeated multiplication of the generator (that is, the + * multiplication in ECDSA signatures, and half of the multiplications in + * ECDSA verification and ECDHE) by a factor roughly 3 to 4. + * + * The cost is increasing EC peak memory usage by a factor roughly 2. + * + * Change this value to 0 to reduce peak memory usage. + */ +#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up */ +#endif /* MBEDTLS_ECP_FIXED_POINT_OPTIM */ + +/* \} name SECTION: Module settings */ + +/* + * Point formats, from RFC 4492's enum ECPointFormat + */ +#define MBEDTLS_ECP_PF_UNCOMPRESSED 0 /**< Uncompressed point format */ +#define MBEDTLS_ECP_PF_COMPRESSED 1 /**< Compressed point format */ + +/* + * Some other constants from RFC 4492 + */ +#define MBEDTLS_ECP_TLS_NAMED_CURVE 3 /**< ECCurveType's named_curve */ + +/** + * \brief Get the list of supported curves in order of preferrence + * (full information) + * + * \return A statically allocated array, the last entry is 0. + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_list( void ); + +/** + * \brief Get the list of supported curves in order of preferrence + * (grp_id only) + * + * \return A statically allocated array, + * terminated with MBEDTLS_ECP_DP_NONE. + */ +const mbedtls_ecp_group_id *mbedtls_ecp_grp_id_list( void ); + +/** + * \brief Get curve information from an internal group identifier + * + * \param grp_id A MBEDTLS_ECP_DP_XXX value + * + * \return The associated curve information or NULL + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_grp_id( mbedtls_ecp_group_id grp_id ); + +/** + * \brief Get curve information from a TLS NamedCurve value + * + * \param tls_id A MBEDTLS_ECP_DP_XXX value + * + * \return The associated curve information or NULL + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_tls_id( uint16_t tls_id ); + +/** + * \brief Get curve information from a human-readable name + * + * \param name The name + * + * \return The associated curve information or NULL + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_name( const char *name ); + +/** + * \brief Initialize a point (as zero) + */ +void mbedtls_ecp_point_init( mbedtls_ecp_point *pt ); + +/** + * \brief Initialize a group (to something meaningless) + */ +void mbedtls_ecp_group_init( mbedtls_ecp_group *grp ); + +/** + * \brief Initialize a key pair (as an invalid one) + */ +void mbedtls_ecp_keypair_init( mbedtls_ecp_keypair *key ); + +/** + * \brief Free the components of a point + */ +void mbedtls_ecp_point_free( mbedtls_ecp_point *pt ); + +/** + * \brief Free the components of an ECP group + */ +void mbedtls_ecp_group_free( mbedtls_ecp_group *grp ); + +/** + * \brief Free the components of a key pair + */ +void mbedtls_ecp_keypair_free( mbedtls_ecp_keypair *key ); + +/** + * \brief Copy the contents of point Q into P + * + * \param P Destination point + * \param Q Source point + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_ecp_copy( mbedtls_ecp_point *P, const mbedtls_ecp_point *Q ); + +/** + * \brief Copy the contents of a group object + * + * \param dst Destination group + * \param src Source group + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_ecp_group_copy( mbedtls_ecp_group *dst, const mbedtls_ecp_group *src ); + +/** + * \brief Set a point to zero + * + * \param pt Destination point + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_ecp_set_zero( mbedtls_ecp_point *pt ); + +/** + * \brief Tell if a point is zero + * + * \param pt Point to test + * + * \return 1 if point is zero, 0 otherwise + */ +int mbedtls_ecp_is_zero( mbedtls_ecp_point *pt ); + +/** + * \brief Compare two points + * + * \note This assumes the points are normalized. Otherwise, + * they may compare as "not equal" even if they are. + * + * \param P First point to compare + * \param Q Second point to compare + * + * \return 0 if the points are equal, + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA otherwise + */ +int mbedtls_ecp_point_cmp( const mbedtls_ecp_point *P, + const mbedtls_ecp_point *Q ); + +/** + * \brief Import a non-zero point from two ASCII strings + * + * \param P Destination point + * \param radix Input numeric base + * \param x First affine coordinate as a null-terminated string + * \param y Second affine coordinate as a null-terminated string + * + * \return 0 if successful, or a MBEDTLS_ERR_MPI_XXX error code + */ +int mbedtls_ecp_point_read_string( mbedtls_ecp_point *P, int radix, + const char *x, const char *y ); + +/** + * \brief Export a point into unsigned binary data + * + * \param grp Group to which the point should belong + * \param P Point to export + * \param format Point format, should be a MBEDTLS_ECP_PF_XXX macro + * \param olen Length of the actual output + * \param buf Output buffer + * \param buflen Length of the output buffer + * + * \return 0 if successful, + * or MBEDTLS_ERR_ECP_BAD_INPUT_DATA + * or MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL + */ +int mbedtls_ecp_point_write_binary( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *P, + int format, size_t *olen, + unsigned char *buf, size_t buflen ); + +/** + * \brief Import a point from unsigned binary data + * + * \param grp Group to which the point should belong + * \param P Point to import + * \param buf Input buffer + * \param ilen Actual length of input + * + * \return 0 if successful, + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the point format + * is not implemented. + * + * \note This function does NOT check that the point actually + * belongs to the given group, see mbedtls_ecp_check_pubkey() for + * that. + */ +int mbedtls_ecp_point_read_binary( const mbedtls_ecp_group *grp, mbedtls_ecp_point *P, + const unsigned char *buf, size_t ilen ); + +/** + * \brief Import a point from a TLS ECPoint record + * + * \param grp ECP group used + * \param pt Destination point + * \param buf $(Start of input buffer) + * \param len Buffer length + * + * \note buf is updated to point right after the ECPoint on exit + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_XXX if initialization failed + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid + */ +int mbedtls_ecp_tls_read_point( const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt, + const unsigned char **buf, size_t len ); + +/** + * \brief Export a point as a TLS ECPoint record + * + * \param grp ECP group used + * \param pt Point to export + * \param format Export format + * \param olen length of data written + * \param buf Buffer to write to + * \param blen Buffer length + * + * \return 0 if successful, + * or MBEDTLS_ERR_ECP_BAD_INPUT_DATA + * or MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL + */ +int mbedtls_ecp_tls_write_point( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt, + int format, size_t *olen, + unsigned char *buf, size_t blen ); + +/** + * \brief Set a group using well-known domain parameters + * + * \param grp Destination group + * \param index Index in the list of well-known domain parameters + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_XXX if initialization failed + * MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE for unkownn groups + * + * \note Index should be a value of RFC 4492's enum NamedCurve, + * usually in the form of a MBEDTLS_ECP_DP_XXX macro. + */ +int mbedtls_ecp_group_load( mbedtls_ecp_group *grp, mbedtls_ecp_group_id index ); + +/** + * \brief Set a group from a TLS ECParameters record + * + * \param grp Destination group + * \param buf &(Start of input buffer) + * \param len Buffer length + * + * \note buf is updated to point right after ECParameters on exit + * + * \return 0 if successful, + * MBEDTLS_ERR_MPI_XXX if initialization failed + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid + */ +int mbedtls_ecp_tls_read_group( mbedtls_ecp_group *grp, const unsigned char **buf, size_t len ); + +/** + * \brief Write the TLS ECParameters record for a group + * + * \param grp ECP group used + * \param olen Number of bytes actually written + * \param buf Buffer to write to + * \param blen Buffer length + * + * \return 0 if successful, + * or MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL + */ +int mbedtls_ecp_tls_write_group( const mbedtls_ecp_group *grp, size_t *olen, + unsigned char *buf, size_t blen ); + +/** + * \brief Multiplication by an integer: R = m * P + * (Not thread-safe to use same group in multiple threads) + * + * \note In order to prevent timing attacks, this function + * executes the exact same sequence of (base field) + * operations for any valid m. It avoids any if-branch or + * array index depending on the value of m. + * + * \note If f_rng is not NULL, it is used to randomize intermediate + * results in order to prevent potential timing attacks + * targeting these results. It is recommended to always + * provide a non-NULL f_rng (the overhead is negligible). + * + * \param grp ECP group + * \param R Destination point + * \param m Integer by which to multiply + * \param P Point to multiply + * \param f_rng RNG function (see notes) + * \param p_rng RNG parameter + * + * \return 0 if successful, + * MBEDTLS_ERR_ECP_INVALID_KEY if m is not a valid privkey + * or P is not a valid pubkey, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_ecp_mul( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +/** + * \brief Multiplication and addition of two points by integers: + * R = m * P + n * Q + * (Not thread-safe to use same group in multiple threads) + * + * \note In contrast to mbedtls_ecp_mul(), this function does not guarantee + * a constant execution flow and timing. + * + * \param grp ECP group + * \param R Destination point + * \param m Integer by which to multiply P + * \param P Point to multiply by m + * \param n Integer by which to multiply Q + * \param Q Point to be multiplied by n + * + * \return 0 if successful, + * MBEDTLS_ERR_ECP_INVALID_KEY if m or n is not a valid privkey + * or P or Q is not a valid pubkey, + * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + */ +int mbedtls_ecp_muladd( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + const mbedtls_mpi *n, const mbedtls_ecp_point *Q ); + +/** + * \brief Check that a point is a valid public key on this curve + * + * \param grp Curve/group the point should belong to + * \param pt Point to check + * + * \return 0 if point is a valid public key, + * MBEDTLS_ERR_ECP_INVALID_KEY otherwise. + * + * \note This function only checks the point is non-zero, has valid + * coordinates and lies on the curve, but not that it is + * indeed a multiple of G. This is additional check is more + * expensive, isn't required by standards, and shouldn't be + * necessary if the group used has a small cofactor. In + * particular, it is useless for the NIST groups which all + * have a cofactor of 1. + * + * \note Uses bare components rather than an mbedtls_ecp_keypair structure + * in order to ease use with other structures such as + * mbedtls_ecdh_context of mbedtls_ecdsa_context. + */ +int mbedtls_ecp_check_pubkey( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt ); + +/** + * \brief Check that an mbedtls_mpi is a valid private key for this curve + * + * \param grp Group used + * \param d Integer to check + * + * \return 0 if point is a valid private key, + * MBEDTLS_ERR_ECP_INVALID_KEY otherwise. + * + * \note Uses bare components rather than an mbedtls_ecp_keypair structure + * in order to ease use with other structures such as + * mbedtls_ecdh_context of mbedtls_ecdsa_context. + */ +int mbedtls_ecp_check_privkey( const mbedtls_ecp_group *grp, const mbedtls_mpi *d ); + +/** + * \brief Generate a keypair with configurable base point + * + * \param grp ECP group + * \param G Chosen base point + * \param d Destination MPI (secret part) + * \param Q Destination point (public part) + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + * + * \note Uses bare components rather than an mbedtls_ecp_keypair structure + * in order to ease use with other structures such as + * mbedtls_ecdh_context of mbedtls_ecdsa_context. + */ +int mbedtls_ecp_gen_keypair_base( mbedtls_ecp_group *grp, + const mbedtls_ecp_point *G, + mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Generate a keypair + * + * \param grp ECP group + * \param d Destination MPI (secret part) + * \param Q Destination point (public part) + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + * + * \note Uses bare components rather than an mbedtls_ecp_keypair structure + * in order to ease use with other structures such as + * mbedtls_ecdh_context of mbedtls_ecdsa_context. + */ +int mbedtls_ecp_gen_keypair( mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Generate a keypair + * + * \param grp_id ECP group identifier + * \param key Destination keypair + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 if successful, + * or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code + */ +int mbedtls_ecp_gen_key( mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +/** + * \brief Check a public-private key pair + * + * \param pub Keypair structure holding a public key + * \param prv Keypair structure holding a private (plus public) key + * + * \return 0 if successful (keys are valid and match), or + * MBEDTLS_ERR_ECP_BAD_INPUT_DATA, or + * a MBEDTLS_ERR_ECP_XXX or MBEDTLS_ERR_MPI_XXX code. + */ +int mbedtls_ecp_check_pub_priv( const mbedtls_ecp_keypair *pub, const mbedtls_ecp_keypair *prv ); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_ecp_self_test( int verbose ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* ecp.h */ diff --git a/include/mbedtls/entropy.h b/include/mbedtls/entropy.h new file mode 100644 index 0000000..747aca4 --- /dev/null +++ b/include/mbedtls/entropy.h @@ -0,0 +1,287 @@ +/** + * \file entropy.h + * + * \brief Entropy accumulator implementation + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ENTROPY_H +#define MBEDTLS_ENTROPY_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_ENTROPY_FORCE_SHA256) +#include "sha512.h" +#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR +#else +#if defined(MBEDTLS_SHA256_C) +#define MBEDTLS_ENTROPY_SHA256_ACCUMULATOR +#include "sha256.h" +#endif +#endif + +#if defined(MBEDTLS_THREADING_C) +#include "threading.h" +#endif + +#if defined(MBEDTLS_HAVEGE_C) +#include "havege.h" +#endif + +#define MBEDTLS_ERR_ENTROPY_SOURCE_FAILED -0x003C /**< Critical entropy source failure. */ +#define MBEDTLS_ERR_ENTROPY_MAX_SOURCES -0x003E /**< No more sources can be added. */ +#define MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED -0x0040 /**< No sources have been added to poll. */ +#define MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE -0x003D /**< No strong sources have been added to poll. */ +#define MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR -0x003F /**< Read/write error in file. */ + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_ENTROPY_MAX_SOURCES) +#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */ +#endif + +#if !defined(MBEDTLS_ENTROPY_MAX_GATHER) +#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */ +#endif + +/* \} name SECTION: Module settings */ + +#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR) +#define MBEDTLS_ENTROPY_BLOCK_SIZE 64 /**< Block size of entropy accumulator (SHA-512) */ +#else +#define MBEDTLS_ENTROPY_BLOCK_SIZE 32 /**< Block size of entropy accumulator (SHA-256) */ +#endif + +#define MBEDTLS_ENTROPY_MAX_SEED_SIZE 1024 /**< Maximum size of seed we read from seed file */ +#define MBEDTLS_ENTROPY_SOURCE_MANUAL MBEDTLS_ENTROPY_MAX_SOURCES + +#define MBEDTLS_ENTROPY_SOURCE_STRONG 1 /**< Entropy source is strong */ +#define MBEDTLS_ENTROPY_SOURCE_WEAK 0 /**< Entropy source is weak */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Entropy poll callback pointer + * + * \param data Callback-specific data pointer + * \param output Data to fill + * \param len Maximum size to provide + * \param olen The actual amount of bytes put into the buffer (Can be 0) + * + * \return 0 if no critical failures occurred, + * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED otherwise + */ +typedef int (*mbedtls_entropy_f_source_ptr)(void *data, unsigned char *output, size_t len, + size_t *olen); + +/** + * \brief Entropy source state + */ +typedef struct +{ + mbedtls_entropy_f_source_ptr f_source; /**< The entropy source callback */ + void * p_source; /**< The callback data pointer */ + size_t size; /**< Amount received in bytes */ + size_t threshold; /**< Minimum bytes required before release */ + int strong; /**< Is the source strong? */ +} +mbedtls_entropy_source_state; + +/** + * \brief Entropy context structure + */ +typedef struct +{ +#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR) + mbedtls_sha512_context accumulator; +#else + mbedtls_sha256_context accumulator; +#endif + int source_count; + mbedtls_entropy_source_state source[MBEDTLS_ENTROPY_MAX_SOURCES]; +#if defined(MBEDTLS_HAVEGE_C) + mbedtls_havege_state havege_data; +#endif +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; /*!< mutex */ +#endif +#if defined(MBEDTLS_ENTROPY_NV_SEED) + int initial_entropy_run; +#endif +} +mbedtls_entropy_context; + +/** + * \brief Initialize the context + * + * \param ctx Entropy context to initialize + */ +void mbedtls_entropy_init( mbedtls_entropy_context *ctx ); + +/** + * \brief Free the data in the context + * + * \param ctx Entropy context to free + */ +void mbedtls_entropy_free( mbedtls_entropy_context *ctx ); + +/** + * \brief Adds an entropy source to poll + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param ctx Entropy context + * \param f_source Entropy function + * \param p_source Function data + * \param threshold Minimum required from source before entropy is released + * ( with mbedtls_entropy_func() ) (in bytes) + * \param strong MBEDTLS_ENTROPY_SOURCE_STRONG or + * MBEDTSL_ENTROPY_SOURCE_WEAK. + * At least one strong source needs to be added. + * Weaker sources (such as the cycle counter) can be used as + * a complement. + * + * \return 0 if successful or MBEDTLS_ERR_ENTROPY_MAX_SOURCES + */ +int mbedtls_entropy_add_source( mbedtls_entropy_context *ctx, + mbedtls_entropy_f_source_ptr f_source, void *p_source, + size_t threshold, int strong ); + +/** + * \brief Trigger an extra gather poll for the accumulator + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param ctx Entropy context + * + * \return 0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_gather( mbedtls_entropy_context *ctx ); + +/** + * \brief Retrieve entropy from the accumulator + * (Maximum length: MBEDTLS_ENTROPY_BLOCK_SIZE) + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param data Entropy context + * \param output Buffer to fill + * \param len Number of bytes desired, must be at most MBEDTLS_ENTROPY_BLOCK_SIZE + * + * \return 0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_func( void *data, unsigned char *output, size_t len ); + +/** + * \brief Add data to the accumulator manually + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param ctx Entropy context + * \param data Data to add + * \param len Length of data + * + * \return 0 if successful + */ +int mbedtls_entropy_update_manual( mbedtls_entropy_context *ctx, + const unsigned char *data, size_t len ); + +#if defined(MBEDTLS_ENTROPY_NV_SEED) +/** + * \brief Trigger an update of the seed file in NV by using the + * current entropy pool. + * + * \param ctx Entropy context + * + * \return 0 if successful + */ +int mbedtls_entropy_update_nv_seed( mbedtls_entropy_context *ctx ); +#endif /* MBEDTLS_ENTROPY_NV_SEED */ + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Write a seed file + * + * \param ctx Entropy context + * \param path Name of the file + * + * \return 0 if successful, + * MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error, or + * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path ); + +/** + * \brief Read and update a seed file. Seed is added to this + * instance. No more than MBEDTLS_ENTROPY_MAX_SEED_SIZE bytes are + * read from the seed file. The rest is ignored. + * + * \param ctx Entropy context + * \param path Name of the file + * + * \return 0 if successful, + * MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error, + * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_update_seed_file( mbedtls_entropy_context *ctx, const char *path ); +#endif /* MBEDTLS_FS_IO */ + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * This module self-test also calls the entropy self-test, + * mbedtls_entropy_source_self_test(); + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_entropy_self_test( int verbose ); + +#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) +/** + * \brief Checkup routine + * + * Verifies the integrity of the hardware entropy source + * provided by the function 'mbedtls_hardware_poll()'. + * + * Note this is the only hardware entropy source that is known + * at link time, and other entropy sources configured + * dynamically at runtime by the function + * mbedtls_entropy_add_source() will not be tested. + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_entropy_source_self_test( int verbose ); +#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */ +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* entropy.h */ diff --git a/include/mbedtls/entropy_poll.h b/include/mbedtls/entropy_poll.h new file mode 100644 index 0000000..81258d5 --- /dev/null +++ b/include/mbedtls/entropy_poll.h @@ -0,0 +1,109 @@ +/** + * \file entropy_poll.h + * + * \brief Platform-specific and custom entropy polling functions + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ENTROPY_POLL_H +#define MBEDTLS_ENTROPY_POLL_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Default thresholds for built-in sources, in bytes + */ +#define MBEDTLS_ENTROPY_MIN_PLATFORM 32 /**< Minimum for platform source */ +#define MBEDTLS_ENTROPY_MIN_HAVEGE 32 /**< Minimum for HAVEGE */ +#define MBEDTLS_ENTROPY_MIN_HARDCLOCK 4 /**< Minimum for mbedtls_timing_hardclock() */ +#if !defined(MBEDTLS_ENTROPY_MIN_HARDWARE) +#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 /**< Minimum for the hardware source */ +#endif + +/** + * \brief Entropy poll callback that provides 0 entropy. + */ +#if defined(MBEDTLS_TEST_NULL_ENTROPY) + int mbedtls_null_entropy_poll( void *data, + unsigned char *output, size_t len, size_t *olen ); +#endif + +#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY) +/** + * \brief Platform-specific entropy poll callback + */ +int mbedtls_platform_entropy_poll( void *data, + unsigned char *output, size_t len, size_t *olen ); +#endif + +#if defined(MBEDTLS_HAVEGE_C) +/** + * \brief HAVEGE based entropy poll callback + * + * Requires an HAVEGE state as its data pointer. + */ +int mbedtls_havege_poll( void *data, + unsigned char *output, size_t len, size_t *olen ); +#endif + +#if defined(MBEDTLS_TIMING_C) +/** + * \brief mbedtls_timing_hardclock-based entropy poll callback + */ +int mbedtls_hardclock_poll( void *data, + unsigned char *output, size_t len, size_t *olen ); +#endif + +#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) +/** + * \brief Entropy poll callback for a hardware source + * + * \warning This is not provided by mbed TLS! + * See \c MBEDTLS_ENTROPY_HARDWARE_ALT in config.h. + * + * \note This must accept NULL as its first argument. + */ +int mbedtls_hardware_poll( void *data, + unsigned char *output, size_t len, size_t *olen ); +#endif + +#if defined(MBEDTLS_ENTROPY_NV_SEED) +/** + * \brief Entropy poll callback for a non-volatile seed file + * + * \note This must accept NULL as its first argument. + */ +int mbedtls_nv_seed_poll( void *data, + unsigned char *output, size_t len, size_t *olen ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* entropy_poll.h */ diff --git a/include/mbedtls/error.h b/include/mbedtls/error.h new file mode 100644 index 0000000..5e549f6 --- /dev/null +++ b/include/mbedtls/error.h @@ -0,0 +1,107 @@ +/** + * \file error.h + * + * \brief Error to string translation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ERROR_H +#define MBEDTLS_ERROR_H + +#include + +/** + * Error code layout. + * + * Currently we try to keep all error codes within the negative space of 16 + * bits signed integers to support all platforms (-0x0001 - -0x7FFF). In + * addition we'd like to give two layers of information on the error if + * possible. + * + * For that purpose the error codes are segmented in the following manner: + * + * 16 bit error code bit-segmentation + * + * 1 bit - Unused (sign bit) + * 3 bits - High level module ID + * 5 bits - Module-dependent error code + * 7 bits - Low level module errors + * + * For historical reasons, low-level error codes are divided in even and odd, + * even codes were assigned first, and -1 is reserved for other errors. + * + * Low-level module errors (0x0002-0x007E, 0x0003-0x007F) + * + * Module Nr Codes assigned + * MPI 7 0x0002-0x0010 + * GCM 2 0x0012-0x0014 + * BLOWFISH 2 0x0016-0x0018 + * THREADING 3 0x001A-0x001E + * AES 2 0x0020-0x0022 + * CAMELLIA 2 0x0024-0x0026 + * XTEA 1 0x0028-0x0028 + * BASE64 2 0x002A-0x002C + * OID 1 0x002E-0x002E 0x000B-0x000B + * PADLOCK 1 0x0030-0x0030 + * DES 1 0x0032-0x0032 + * CTR_DBRG 4 0x0034-0x003A + * ENTROPY 3 0x003C-0x0040 0x003D-0x003F + * NET 11 0x0042-0x0052 0x0043-0x0045 + * ASN1 7 0x0060-0x006C + * PBKDF2 1 0x007C-0x007C + * HMAC_DRBG 4 0x0003-0x0009 + * CCM 2 0x000D-0x000F + * + * High-level module nr (3 bits - 0x0...-0x7...) + * Name ID Nr of Errors + * PEM 1 9 + * PKCS#12 1 4 (Started from top) + * X509 2 19 + * PKCS5 2 4 (Started from top) + * DHM 3 9 + * PK 3 14 (Started from top) + * RSA 4 9 + * ECP 4 8 (Started from top) + * MD 5 4 + * CIPHER 6 6 + * SSL 6 17 (Started from top) + * SSL 7 31 + * + * Module dependent error code (5 bits 0x.00.-0x.F8.) + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Translate a mbed TLS error code into a string representation, + * Result is truncated if necessary and always includes a terminating + * null byte. + * + * \param errnum error code + * \param buffer buffer to place representation in + * \param buflen length of the buffer + */ +void mbedtls_strerror( int errnum, char *buffer, size_t buflen ); + +#ifdef __cplusplus +} +#endif + +#endif /* error.h */ diff --git a/include/mbedtls/gcm.h b/include/mbedtls/gcm.h new file mode 100644 index 0000000..1b77aae --- /dev/null +++ b/include/mbedtls/gcm.h @@ -0,0 +1,220 @@ +/** + * \file gcm.h + * + * \brief Galois/Counter mode for 128-bit block ciphers + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_GCM_H +#define MBEDTLS_GCM_H + +#include "cipher.h" + +#include + +#define MBEDTLS_GCM_ENCRYPT 1 +#define MBEDTLS_GCM_DECRYPT 0 + +#define MBEDTLS_ERR_GCM_AUTH_FAILED -0x0012 /**< Authenticated decryption failed. */ +#define MBEDTLS_ERR_GCM_BAD_INPUT -0x0014 /**< Bad input parameters to function. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief GCM context structure + */ +typedef struct { + mbedtls_cipher_context_t cipher_ctx;/*!< cipher context used */ + uint64_t HL[16]; /*!< Precalculated HTable */ + uint64_t HH[16]; /*!< Precalculated HTable */ + uint64_t len; /*!< Total data length */ + uint64_t add_len; /*!< Total add length */ + unsigned char base_ectr[16];/*!< First ECTR for tag */ + unsigned char y[16]; /*!< Y working value */ + unsigned char buf[16]; /*!< buf working value */ + int mode; /*!< Encrypt or Decrypt */ +} +mbedtls_gcm_context; + +/** + * \brief Initialize GCM context (just makes references valid) + * Makes the context ready for mbedtls_gcm_setkey() or + * mbedtls_gcm_free(). + * + * \param ctx GCM context to initialize + */ +void mbedtls_gcm_init( mbedtls_gcm_context *ctx ); + +/** + * \brief GCM initialization (encryption) + * + * \param ctx GCM context to be initialized + * \param cipher cipher to use (a 128-bit block cipher) + * \param key encryption key + * \param keybits must be 128, 192 or 256 + * + * \return 0 if successful, or a cipher specific error code + */ +int mbedtls_gcm_setkey( mbedtls_gcm_context *ctx, + mbedtls_cipher_id_t cipher, + const unsigned char *key, + unsigned int keybits ); + +/** + * \brief GCM buffer encryption/decryption using a block cipher + * + * \note On encryption, the output buffer can be the same as the input buffer. + * On decryption, the output buffer cannot be the same as input buffer. + * If buffers overlap, the output buffer must trail at least 8 bytes + * behind the input buffer. + * + * \param ctx GCM context + * \param mode MBEDTLS_GCM_ENCRYPT or MBEDTLS_GCM_DECRYPT + * \param length length of the input data + * \param iv initialization vector + * \param iv_len length of IV + * \param add additional data + * \param add_len length of additional data + * \param input buffer holding the input data + * \param output buffer for holding the output data + * \param tag_len length of the tag to generate + * \param tag buffer for holding the tag + * + * \return 0 if successful + */ +int mbedtls_gcm_crypt_and_tag( mbedtls_gcm_context *ctx, + int mode, + size_t length, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len, + const unsigned char *input, + unsigned char *output, + size_t tag_len, + unsigned char *tag ); + +/** + * \brief GCM buffer authenticated decryption using a block cipher + * + * \note On decryption, the output buffer cannot be the same as input buffer. + * If buffers overlap, the output buffer must trail at least 8 bytes + * behind the input buffer. + * + * \param ctx GCM context + * \param length length of the input data + * \param iv initialization vector + * \param iv_len length of IV + * \param add additional data + * \param add_len length of additional data + * \param tag buffer holding the tag + * \param tag_len length of the tag + * \param input buffer holding the input data + * \param output buffer for holding the output data + * + * \return 0 if successful and authenticated, + * MBEDTLS_ERR_GCM_AUTH_FAILED if tag does not match + */ +int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx, + size_t length, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len, + const unsigned char *tag, + size_t tag_len, + const unsigned char *input, + unsigned char *output ); + +/** + * \brief Generic GCM stream start function + * + * \param ctx GCM context + * \param mode MBEDTLS_GCM_ENCRYPT or MBEDTLS_GCM_DECRYPT + * \param iv initialization vector + * \param iv_len length of IV + * \param add additional data (or NULL if length is 0) + * \param add_len length of additional data + * + * \return 0 if successful + */ +int mbedtls_gcm_starts( mbedtls_gcm_context *ctx, + int mode, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len ); + +/** + * \brief Generic GCM update function. Encrypts/decrypts using the + * given GCM context. Expects input to be a multiple of 16 + * bytes! Only the last call before mbedtls_gcm_finish() can be less + * than 16 bytes! + * + * \note On decryption, the output buffer cannot be the same as input buffer. + * If buffers overlap, the output buffer must trail at least 8 bytes + * behind the input buffer. + * + * \param ctx GCM context + * \param length length of the input data + * \param input buffer holding the input data + * \param output buffer for holding the output data + * + * \return 0 if successful or MBEDTLS_ERR_GCM_BAD_INPUT + */ +int mbedtls_gcm_update( mbedtls_gcm_context *ctx, + size_t length, + const unsigned char *input, + unsigned char *output ); + +/** + * \brief Generic GCM finalisation function. Wraps up the GCM stream + * and generates the tag. The tag can have a maximum length of + * 16 bytes. + * + * \param ctx GCM context + * \param tag buffer for holding the tag + * \param tag_len length of the tag to generate (must be at least 4) + * + * \return 0 if successful or MBEDTLS_ERR_GCM_BAD_INPUT + */ +int mbedtls_gcm_finish( mbedtls_gcm_context *ctx, + unsigned char *tag, + size_t tag_len ); + +/** + * \brief Free a GCM context and underlying cipher sub-context + * + * \param ctx GCM context to free + */ +void mbedtls_gcm_free( mbedtls_gcm_context *ctx ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_gcm_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* gcm.h */ diff --git a/include/mbedtls/havege.h b/include/mbedtls/havege.h new file mode 100644 index 0000000..dac5d31 --- /dev/null +++ b/include/mbedtls/havege.h @@ -0,0 +1,74 @@ +/** + * \file havege.h + * + * \brief HAVEGE: HArdware Volatile Entropy Gathering and Expansion + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_HAVEGE_H +#define MBEDTLS_HAVEGE_H + +#include + +#define MBEDTLS_HAVEGE_COLLECT_SIZE 1024 + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief HAVEGE state structure + */ +typedef struct +{ + int PT1, PT2, offset[2]; + int pool[MBEDTLS_HAVEGE_COLLECT_SIZE]; + int WALK[8192]; +} +mbedtls_havege_state; + +/** + * \brief HAVEGE initialization + * + * \param hs HAVEGE state to be initialized + */ +void mbedtls_havege_init( mbedtls_havege_state *hs ); + +/** + * \brief Clear HAVEGE state + * + * \param hs HAVEGE state to be cleared + */ +void mbedtls_havege_free( mbedtls_havege_state *hs ); + +/** + * \brief HAVEGE rand function + * + * \param p_rng A HAVEGE state + * \param output Buffer to fill + * \param len Length of buffer + * + * \return 0 + */ +int mbedtls_havege_random( void *p_rng, unsigned char *output, size_t len ); + +#ifdef __cplusplus +} +#endif + +#endif /* havege.h */ diff --git a/include/mbedtls/hmac_drbg.h b/include/mbedtls/hmac_drbg.h new file mode 100644 index 0000000..e010558 --- /dev/null +++ b/include/mbedtls/hmac_drbg.h @@ -0,0 +1,299 @@ +/** + * \file hmac_drbg.h + * + * \brief HMAC_DRBG (NIST SP 800-90A) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_HMAC_DRBG_H +#define MBEDTLS_HMAC_DRBG_H + +#include "md.h" + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +/* + * Error codes + */ +#define MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG -0x0003 /**< Too many random requested in single call. */ +#define MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG -0x0005 /**< Input too large (Entropy + additional). */ +#define MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR -0x0007 /**< Read/write error in file. */ +#define MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED -0x0009 /**< The entropy source failed. */ + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_HMAC_DRBG_RESEED_INTERVAL) +#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ +#endif + +#if !defined(MBEDTLS_HMAC_DRBG_MAX_INPUT) +#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ +#endif + +#if !defined(MBEDTLS_HMAC_DRBG_MAX_REQUEST) +#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ +#endif + +#if !defined(MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT) +#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ +#endif + +/* \} name SECTION: Module settings */ + +#define MBEDTLS_HMAC_DRBG_PR_OFF 0 /**< No prediction resistance */ +#define MBEDTLS_HMAC_DRBG_PR_ON 1 /**< Prediction resistance enabled */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * HMAC_DRBG context. + */ +typedef struct +{ + /* Working state: the key K is not stored explicitely, + * but is implied by the HMAC context */ + mbedtls_md_context_t md_ctx; /*!< HMAC context (inc. K) */ + unsigned char V[MBEDTLS_MD_MAX_SIZE]; /*!< V in the spec */ + int reseed_counter; /*!< reseed counter */ + + /* Administrative state */ + size_t entropy_len; /*!< entropy bytes grabbed on each (re)seed */ + int prediction_resistance; /*!< enable prediction resistance (Automatic + reseed before every random generation) */ + int reseed_interval; /*!< reseed interval */ + + /* Callbacks */ + int (*f_entropy)(void *, unsigned char *, size_t); /*!< entropy function */ + void *p_entropy; /*!< context for the entropy function */ + +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; +#endif +} mbedtls_hmac_drbg_context; + +/** + * \brief HMAC_DRBG context initialization + * Makes the context ready for mbedtls_hmac_drbg_seed(), + * mbedtls_hmac_drbg_seed_buf() or + * mbedtls_hmac_drbg_free(). + * + * \param ctx HMAC_DRBG context to be initialized + */ +void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx ); + +/** + * \brief HMAC_DRBG initial seeding + * Seed and setup entropy source for future reseeds. + * + * \param ctx HMAC_DRBG context to be seeded + * \param md_info MD algorithm to use for HMAC_DRBG + * \param f_entropy Entropy callback (p_entropy, buffer to fill, buffer + * length) + * \param p_entropy Entropy context + * \param custom Personalization data (Device specific identifiers) + * (Can be NULL) + * \param len Length of personalization data + * + * \note The "security strength" as defined by NIST is set to: + * 128 bits if md_alg is SHA-1, + * 192 bits if md_alg is SHA-224, + * 256 bits if md_alg is SHA-256 or higher. + * Note that SHA-256 is just as efficient as SHA-224. + * + * \return 0 if successful, or + * MBEDTLS_ERR_MD_BAD_INPUT_DATA, or + * MBEDTLS_ERR_MD_ALLOC_FAILED, or + * MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED. + */ +int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *ctx, + const mbedtls_md_info_t * md_info, + int (*f_entropy)(void *, unsigned char *, size_t), + void *p_entropy, + const unsigned char *custom, + size_t len ); + +/** + * \brief Initilisation of simpified HMAC_DRBG (never reseeds). + * (For use with deterministic ECDSA.) + * + * \param ctx HMAC_DRBG context to be initialised + * \param md_info MD algorithm to use for HMAC_DRBG + * \param data Concatenation of entropy string and additional data + * \param data_len Length of data in bytes + * + * \return 0 if successful, or + * MBEDTLS_ERR_MD_BAD_INPUT_DATA, or + * MBEDTLS_ERR_MD_ALLOC_FAILED. + */ +int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *ctx, + const mbedtls_md_info_t * md_info, + const unsigned char *data, size_t data_len ); + +/** + * \brief Enable / disable prediction resistance (Default: Off) + * + * Note: If enabled, entropy is used for ctx->entropy_len before each call! + * Only use this if you have ample supply of good entropy! + * + * \param ctx HMAC_DRBG context + * \param resistance MBEDTLS_HMAC_DRBG_PR_ON or MBEDTLS_HMAC_DRBG_PR_OFF + */ +void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx, + int resistance ); + +/** + * \brief Set the amount of entropy grabbed on each reseed + * (Default: given by the security strength, which + * depends on the hash used, see \c mbedtls_hmac_drbg_init() ) + * + * \param ctx HMAC_DRBG context + * \param len Amount of entropy to grab, in bytes + */ +void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx, + size_t len ); + +/** + * \brief Set the reseed interval + * (Default: MBEDTLS_HMAC_DRBG_RESEED_INTERVAL) + * + * \param ctx HMAC_DRBG context + * \param interval Reseed interval + */ +void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx, + int interval ); + +/** + * \brief HMAC_DRBG update state + * + * \param ctx HMAC_DRBG context + * \param additional Additional data to update state with, or NULL + * \param add_len Length of additional data, or 0 + * + * \note Additional data is optional, pass NULL and 0 as second + * third argument if no additional data is being used. + */ +void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx, + const unsigned char *additional, size_t add_len ); + +/** + * \brief HMAC_DRBG reseeding (extracts data from entropy source) + * + * \param ctx HMAC_DRBG context + * \param additional Additional data to add to state (Can be NULL) + * \param len Length of additional data + * + * \return 0 if successful, or + * MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED + */ +int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx, + const unsigned char *additional, size_t len ); + +/** + * \brief HMAC_DRBG generate random with additional update input + * + * Note: Automatically reseeds if reseed_counter is reached or PR is enabled. + * + * \param p_rng HMAC_DRBG context + * \param output Buffer to fill + * \param output_len Length of the buffer + * \param additional Additional data to update with (can be NULL) + * \param add_len Length of additional data (can be 0) + * + * \return 0 if successful, or + * MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED, or + * MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG, or + * MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG. + */ +int mbedtls_hmac_drbg_random_with_add( void *p_rng, + unsigned char *output, size_t output_len, + const unsigned char *additional, + size_t add_len ); + +/** + * \brief HMAC_DRBG generate random + * + * Note: Automatically reseeds if reseed_counter is reached or PR is enabled. + * + * \param p_rng HMAC_DRBG context + * \param output Buffer to fill + * \param out_len Length of the buffer + * + * \return 0 if successful, or + * MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED, or + * MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG + */ +int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len ); + +/** + * \brief Free an HMAC_DRBG context + * + * \param ctx HMAC_DRBG context to free. + */ +void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx ); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Write a seed file + * + * \param ctx HMAC_DRBG context + * \param path Name of the file + * + * \return 0 if successful, 1 on file error, or + * MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED + */ +int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path ); + +/** + * \brief Read and update a seed file. Seed is added to this + * instance + * + * \param ctx HMAC_DRBG context + * \param path Name of the file + * + * \return 0 if successful, 1 on file error, + * MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED or + * MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG + */ +int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path ); +#endif /* MBEDTLS_FS_IO */ + + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_hmac_drbg_self_test( int verbose ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* hmac_drbg.h */ diff --git a/include/mbedtls/md.h b/include/mbedtls/md.h new file mode 100644 index 0000000..9b996a9 --- /dev/null +++ b/include/mbedtls/md.h @@ -0,0 +1,354 @@ +/** + * \file md.h + * + * \brief Generic message digest wrapper + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_MD_H +#define MBEDTLS_MD_H + +#include + +#define MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE -0x5080 /**< The selected feature is not available. */ +#define MBEDTLS_ERR_MD_BAD_INPUT_DATA -0x5100 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_MD_ALLOC_FAILED -0x5180 /**< Failed to allocate memory. */ +#define MBEDTLS_ERR_MD_FILE_IO_ERROR -0x5200 /**< Opening or reading of file failed. */ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + MBEDTLS_MD_NONE=0, + MBEDTLS_MD_MD2, + MBEDTLS_MD_MD4, + MBEDTLS_MD_MD5, + MBEDTLS_MD_SHA1, + MBEDTLS_MD_SHA224, + MBEDTLS_MD_SHA256, + MBEDTLS_MD_SHA384, + MBEDTLS_MD_SHA512, + MBEDTLS_MD_RIPEMD160, +} mbedtls_md_type_t; + +#if defined(MBEDTLS_SHA512_C) +#define MBEDTLS_MD_MAX_SIZE 64 /* longest known is SHA512 */ +#else +#define MBEDTLS_MD_MAX_SIZE 32 /* longest known is SHA256 or less */ +#endif + +/** + * Opaque struct defined in md_internal.h + */ +typedef struct mbedtls_md_info_t mbedtls_md_info_t; + +/** + * Generic message digest context. + */ +typedef struct { + /** Information about the associated message digest */ + const mbedtls_md_info_t *md_info; + + /** Digest-specific context */ + void *md_ctx; + + /** HMAC part of the context */ + void *hmac_ctx; +} mbedtls_md_context_t; + +/** + * \brief Returns the list of digests supported by the generic digest module. + * + * \return a statically allocated array of digests, the last entry + * is 0. + */ +const int *mbedtls_md_list( void ); + +/** + * \brief Returns the message digest information associated with the + * given digest name. + * + * \param md_name Name of the digest to search for. + * + * \return The message digest information associated with md_name or + * NULL if not found. + */ +const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name ); + +/** + * \brief Returns the message digest information associated with the + * given digest type. + * + * \param md_type type of digest to search for. + * + * \return The message digest information associated with md_type or + * NULL if not found. + */ +const mbedtls_md_info_t *mbedtls_md_info_from_type( mbedtls_md_type_t md_type ); + +/** + * \brief Initialize a md_context (as NONE) + * This should always be called first. + * Prepares the context for mbedtls_md_setup() or mbedtls_md_free(). + */ +void mbedtls_md_init( mbedtls_md_context_t *ctx ); + +/** + * \brief Free and clear the internal structures of ctx. + * Can be called at any time after mbedtls_md_init(). + * Mandatory once mbedtls_md_setup() has been called. + */ +void mbedtls_md_free( mbedtls_md_context_t *ctx ); + +#if ! defined(MBEDTLS_DEPRECATED_REMOVED) +#if defined(MBEDTLS_DEPRECATED_WARNING) +#define MBEDTLS_DEPRECATED __attribute__((deprecated)) +#else +#define MBEDTLS_DEPRECATED +#endif +/** + * \brief Select MD to use and allocate internal structures. + * Should be called after mbedtls_md_init() or mbedtls_md_free(). + * Makes it necessary to call mbedtls_md_free() later. + * + * \deprecated Superseded by mbedtls_md_setup() in 2.0.0 + * + * \param ctx Context to set up. + * \param md_info Message digest to use. + * + * \returns \c 0 on success, + * \c MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter failure, + * \c MBEDTLS_ERR_MD_ALLOC_FAILED memory allocation failure. + */ +int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info ) MBEDTLS_DEPRECATED; +#undef MBEDTLS_DEPRECATED +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +/** + * \brief Select MD to use and allocate internal structures. + * Should be called after mbedtls_md_init() or mbedtls_md_free(). + * Makes it necessary to call mbedtls_md_free() later. + * + * \param ctx Context to set up. + * \param md_info Message digest to use. + * \param hmac 0 to save some memory if HMAC will not be used, + * non-zero is HMAC is going to be used with this context. + * + * \returns \c 0 on success, + * \c MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter failure, + * \c MBEDTLS_ERR_MD_ALLOC_FAILED memory allocation failure. + */ +int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac ); + +/** + * \brief Clone the state of an MD context + * + * \note The two contexts must have been setup to the same type + * (cloning from SHA-256 to SHA-512 make no sense). + * + * \warning Only clones the MD state, not the HMAC state! (for now) + * + * \param dst The destination context + * \param src The context to be cloned + * + * \return \c 0 on success, + * \c MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter failure. + */ +int mbedtls_md_clone( mbedtls_md_context_t *dst, + const mbedtls_md_context_t *src ); + +/** + * \brief Returns the size of the message digest output. + * + * \param md_info message digest info + * + * \return size of the message digest output in bytes. + */ +unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info ); + +/** + * \brief Returns the type of the message digest output. + * + * \param md_info message digest info + * + * \return type of the message digest output. + */ +mbedtls_md_type_t mbedtls_md_get_type( const mbedtls_md_info_t *md_info ); + +/** + * \brief Returns the name of the message digest output. + * + * \param md_info message digest info + * + * \return name of the message digest output. + */ +const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info ); + +/** + * \brief Prepare the context to digest a new message. + * Generally called after mbedtls_md_setup() or mbedtls_md_finish(). + * Followed by mbedtls_md_update(). + * + * \param ctx generic message digest context. + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_starts( mbedtls_md_context_t *ctx ); + +/** + * \brief Generic message digest process buffer + * Called between mbedtls_md_starts() and mbedtls_md_finish(). + * May be called repeatedly. + * + * \param ctx Generic message digest context + * \param input buffer holding the datal + * \param ilen length of the input data + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen ); + +/** + * \brief Generic message digest final digest + * Called after mbedtls_md_update(). + * Usually followed by mbedtls_md_free() or mbedtls_md_starts(). + * + * \param ctx Generic message digest context + * \param output Generic message digest checksum result + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output ); + +/** + * \brief Output = message_digest( input buffer ) + * + * \param md_info message digest info + * \param input buffer holding the data + * \param ilen length of the input data + * \param output Generic message digest checksum result + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen, + unsigned char *output ); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Output = message_digest( file contents ) + * + * \param md_info message digest info + * \param path input file name + * \param output generic message digest checksum result + * + * \return 0 if successful, + * MBEDTLS_ERR_MD_FILE_IO_ERROR if file input failed, + * MBEDTLS_ERR_MD_BAD_INPUT_DATA if md_info was NULL. + */ +int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, + unsigned char *output ); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief Set HMAC key and prepare to authenticate a new message. + * Usually called after mbedtls_md_setup() or mbedtls_md_hmac_finish(). + * + * \param ctx HMAC context + * \param key HMAC secret key + * \param keylen length of the HMAC key in bytes + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, + size_t keylen ); + +/** + * \brief Generic HMAC process buffer. + * Called between mbedtls_md_hmac_starts() or mbedtls_md_hmac_reset() + * and mbedtls_md_hmac_finish(). + * May be called repeatedly. + * + * \param ctx HMAC context + * \param input buffer holding the data + * \param ilen length of the input data + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input, + size_t ilen ); + +/** + * \brief Output HMAC. + * Called after mbedtls_md_hmac_update(). + * Usually followed by mbedtls_md_hmac_reset(), + * mbedtls_md_hmac_starts(), or mbedtls_md_free(). + * + * \param ctx HMAC context + * \param output Generic HMAC checksum result + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output); + +/** + * \brief Prepare to authenticate a new message with the same key. + * Called after mbedtls_md_hmac_finish() and before + * mbedtls_md_hmac_update(). + * + * \param ctx HMAC context to be reset + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx ); + +/** + * \brief Output = Generic_HMAC( hmac key, input buffer ) + * + * \param md_info message digest info + * \param key HMAC secret key + * \param keylen length of the HMAC key in bytes + * \param input buffer holding the data + * \param ilen length of the input data + * \param output Generic HMAC-result + * + * \returns 0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter + * verification fails. + */ +int mbedtls_md_hmac( const mbedtls_md_info_t *md_info, const unsigned char *key, size_t keylen, + const unsigned char *input, size_t ilen, + unsigned char *output ); + +/* Internal use */ +int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data ); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_MD_H */ diff --git a/include/mbedtls/md2.h b/include/mbedtls/md2.h new file mode 100644 index 0000000..0f93fbf --- /dev/null +++ b/include/mbedtls/md2.h @@ -0,0 +1,136 @@ +/** + * \file md2.h + * + * \brief MD2 message digest algorithm (hash function) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_MD2_H +#define MBEDTLS_MD2_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +#if !defined(MBEDTLS_MD2_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief MD2 context structure + */ +typedef struct +{ + unsigned char cksum[16]; /*!< checksum of the data block */ + unsigned char state[48]; /*!< intermediate digest state */ + unsigned char buffer[16]; /*!< data block being processed */ + size_t left; /*!< amount of data in buffer */ +} +mbedtls_md2_context; + +/** + * \brief Initialize MD2 context + * + * \param ctx MD2 context to be initialized + */ +void mbedtls_md2_init( mbedtls_md2_context *ctx ); + +/** + * \brief Clear MD2 context + * + * \param ctx MD2 context to be cleared + */ +void mbedtls_md2_free( mbedtls_md2_context *ctx ); + +/** + * \brief Clone (the state of) an MD2 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_md2_clone( mbedtls_md2_context *dst, + const mbedtls_md2_context *src ); + +/** + * \brief MD2 context setup + * + * \param ctx context to be initialized + */ +void mbedtls_md2_starts( mbedtls_md2_context *ctx ); + +/** + * \brief MD2 process buffer + * + * \param ctx MD2 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void mbedtls_md2_update( mbedtls_md2_context *ctx, const unsigned char *input, size_t ilen ); + +/** + * \brief MD2 final digest + * + * \param ctx MD2 context + * \param output MD2 checksum result + */ +void mbedtls_md2_finish( mbedtls_md2_context *ctx, unsigned char output[16] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_MD2_ALT */ +#include "md2_alt.h" +#endif /* MBEDTLS_MD2_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Output = MD2( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD2 checksum result + */ +void mbedtls_md2( const unsigned char *input, size_t ilen, unsigned char output[16] ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_md2_self_test( int verbose ); + +/* Internal use */ +void mbedtls_md2_process( mbedtls_md2_context *ctx ); + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_md2.h */ diff --git a/include/mbedtls/md4.h b/include/mbedtls/md4.h new file mode 100644 index 0000000..45214d4 --- /dev/null +++ b/include/mbedtls/md4.h @@ -0,0 +1,136 @@ +/** + * \file md4.h + * + * \brief MD4 message digest algorithm (hash function) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_MD4_H +#define MBEDTLS_MD4_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#if !defined(MBEDTLS_MD4_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief MD4 context structure + */ +typedef struct +{ + uint32_t total[2]; /*!< number of bytes processed */ + uint32_t state[4]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +mbedtls_md4_context; + +/** + * \brief Initialize MD4 context + * + * \param ctx MD4 context to be initialized + */ +void mbedtls_md4_init( mbedtls_md4_context *ctx ); + +/** + * \brief Clear MD4 context + * + * \param ctx MD4 context to be cleared + */ +void mbedtls_md4_free( mbedtls_md4_context *ctx ); + +/** + * \brief Clone (the state of) an MD4 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_md4_clone( mbedtls_md4_context *dst, + const mbedtls_md4_context *src ); + +/** + * \brief MD4 context setup + * + * \param ctx context to be initialized + */ +void mbedtls_md4_starts( mbedtls_md4_context *ctx ); + +/** + * \brief MD4 process buffer + * + * \param ctx MD4 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void mbedtls_md4_update( mbedtls_md4_context *ctx, const unsigned char *input, size_t ilen ); + +/** + * \brief MD4 final digest + * + * \param ctx MD4 context + * \param output MD4 checksum result + */ +void mbedtls_md4_finish( mbedtls_md4_context *ctx, unsigned char output[16] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_MD4_ALT */ +#include "md4_alt.h" +#endif /* MBEDTLS_MD4_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Output = MD4( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD4 checksum result + */ +void mbedtls_md4( const unsigned char *input, size_t ilen, unsigned char output[16] ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_md4_self_test( int verbose ); + +/* Internal use */ +void mbedtls_md4_process( mbedtls_md4_context *ctx, const unsigned char data[64] ); + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_md4.h */ diff --git a/include/mbedtls/md5.h b/include/mbedtls/md5.h new file mode 100644 index 0000000..5a64061 --- /dev/null +++ b/include/mbedtls/md5.h @@ -0,0 +1,136 @@ +/** + * \file md5.h + * + * \brief MD5 message digest algorithm (hash function) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_MD5_H +#define MBEDTLS_MD5_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#if !defined(MBEDTLS_MD5_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief MD5 context structure + */ +typedef struct +{ + uint32_t total[2]; /*!< number of bytes processed */ + uint32_t state[4]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +mbedtls_md5_context; + +/** + * \brief Initialize MD5 context + * + * \param ctx MD5 context to be initialized + */ +void mbedtls_md5_init( mbedtls_md5_context *ctx ); + +/** + * \brief Clear MD5 context + * + * \param ctx MD5 context to be cleared + */ +void mbedtls_md5_free( mbedtls_md5_context *ctx ); + +/** + * \brief Clone (the state of) an MD5 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_md5_clone( mbedtls_md5_context *dst, + const mbedtls_md5_context *src ); + +/** + * \brief MD5 context setup + * + * \param ctx context to be initialized + */ +void mbedtls_md5_starts( mbedtls_md5_context *ctx ); + +/** + * \brief MD5 process buffer + * + * \param ctx MD5 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void mbedtls_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen ); + +/** + * \brief MD5 final digest + * + * \param ctx MD5 context + * \param output MD5 checksum result + */ +void mbedtls_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] ); + +/* Internal use */ +void mbedtls_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_MD5_ALT */ +#include "md5_alt.h" +#endif /* MBEDTLS_MD5_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Output = MD5( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD5 checksum result + */ +void mbedtls_md5( const unsigned char *input, size_t ilen, unsigned char output[16] ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_md5_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_md5.h */ diff --git a/include/mbedtls/md_internal.h b/include/mbedtls/md_internal.h new file mode 100644 index 0000000..e2441bb --- /dev/null +++ b/include/mbedtls/md_internal.h @@ -0,0 +1,114 @@ +/** + * \file md_internal.h + * + * \brief Message digest wrappers. + * + * \warning This in an internal header. Do not include directly. + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_MD_WRAP_H +#define MBEDTLS_MD_WRAP_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "md.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Message digest information. + * Allows message digest functions to be called in a generic way. + */ +struct mbedtls_md_info_t +{ + /** Digest identifier */ + mbedtls_md_type_t type; + + /** Name of the message digest */ + const char * name; + + /** Output length of the digest function in bytes */ + int size; + + /** Block length of the digest function in bytes */ + int block_size; + + /** Digest initialisation function */ + void (*starts_func)( void *ctx ); + + /** Digest update function */ + void (*update_func)( void *ctx, const unsigned char *input, size_t ilen ); + + /** Digest finalisation function */ + void (*finish_func)( void *ctx, unsigned char *output ); + + /** Generic digest function */ + void (*digest_func)( const unsigned char *input, size_t ilen, + unsigned char *output ); + + /** Allocate a new context */ + void * (*ctx_alloc_func)( void ); + + /** Free the given context */ + void (*ctx_free_func)( void *ctx ); + + /** Clone state from a context */ + void (*clone_func)( void *dst, const void *src ); + + /** Internal use only */ + void (*process_func)( void *ctx, const unsigned char *input ); +}; + +#if defined(MBEDTLS_MD2_C) +extern const mbedtls_md_info_t mbedtls_md2_info; +#endif +#if defined(MBEDTLS_MD4_C) +extern const mbedtls_md_info_t mbedtls_md4_info; +#endif +#if defined(MBEDTLS_MD5_C) +extern const mbedtls_md_info_t mbedtls_md5_info; +#endif +#if defined(MBEDTLS_RIPEMD160_C) +extern const mbedtls_md_info_t mbedtls_ripemd160_info; +#endif +#if defined(MBEDTLS_SHA1_C) +extern const mbedtls_md_info_t mbedtls_sha1_info; +#endif +#if defined(MBEDTLS_SHA256_C) +extern const mbedtls_md_info_t mbedtls_sha224_info; +extern const mbedtls_md_info_t mbedtls_sha256_info; +#endif +#if defined(MBEDTLS_SHA512_C) +extern const mbedtls_md_info_t mbedtls_sha384_info; +extern const mbedtls_md_info_t mbedtls_sha512_info; +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_MD_WRAP_H */ diff --git a/include/mbedtls/memory_buffer_alloc.h b/include/mbedtls/memory_buffer_alloc.h new file mode 100644 index 0000000..d5df316 --- /dev/null +++ b/include/mbedtls/memory_buffer_alloc.h @@ -0,0 +1,150 @@ +/** + * \file memory_buffer_alloc.h + * + * \brief Buffer-based memory allocator + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_MEMORY_BUFFER_ALLOC_H +#define MBEDTLS_MEMORY_BUFFER_ALLOC_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_MEMORY_ALIGN_MULTIPLE) +#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 /**< Align on multiples of this value */ +#endif + +/* \} name SECTION: Module settings */ + +#define MBEDTLS_MEMORY_VERIFY_NONE 0 +#define MBEDTLS_MEMORY_VERIFY_ALLOC (1 << 0) +#define MBEDTLS_MEMORY_VERIFY_FREE (1 << 1) +#define MBEDTLS_MEMORY_VERIFY_ALWAYS (MBEDTLS_MEMORY_VERIFY_ALLOC | MBEDTLS_MEMORY_VERIFY_FREE) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Initialize use of stack-based memory allocator. + * The stack-based allocator does memory management inside the + * presented buffer and does not call calloc() and free(). + * It sets the global mbedtls_calloc() and mbedtls_free() pointers + * to its own functions. + * (Provided mbedtls_calloc() and mbedtls_free() are thread-safe if + * MBEDTLS_THREADING_C is defined) + * + * \note This code is not optimized and provides a straight-forward + * implementation of a stack-based memory allocator. + * + * \param buf buffer to use as heap + * \param len size of the buffer + */ +void mbedtls_memory_buffer_alloc_init( unsigned char *buf, size_t len ); + +/** + * \brief Free the mutex for thread-safety and clear remaining memory + */ +void mbedtls_memory_buffer_alloc_free( void ); + +/** + * \brief Determine when the allocator should automatically verify the state + * of the entire chain of headers / meta-data. + * (Default: MBEDTLS_MEMORY_VERIFY_NONE) + * + * \param verify One of MBEDTLS_MEMORY_VERIFY_NONE, MBEDTLS_MEMORY_VERIFY_ALLOC, + * MBEDTLS_MEMORY_VERIFY_FREE or MBEDTLS_MEMORY_VERIFY_ALWAYS + */ +void mbedtls_memory_buffer_set_verify( int verify ); + +#if defined(MBEDTLS_MEMORY_DEBUG) +/** + * \brief Print out the status of the allocated memory (primarily for use + * after a program should have de-allocated all memory) + * Prints out a list of 'still allocated' blocks and their stack + * trace if MBEDTLS_MEMORY_BACKTRACE is defined. + */ +void mbedtls_memory_buffer_alloc_status( void ); + +/** + * \brief Get the peak heap usage so far + * + * \param max_used Peak number of bytes in use or committed. This + * includes bytes in allocated blocks too small to split + * into smaller blocks but larger than the requested size. + * \param max_blocks Peak number of blocks in use, including free and used + */ +void mbedtls_memory_buffer_alloc_max_get( size_t *max_used, size_t *max_blocks ); + +/** + * \brief Reset peak statistics + */ +void mbedtls_memory_buffer_alloc_max_reset( void ); + +/** + * \brief Get the current heap usage + * + * \param cur_used Current number of bytes in use or committed. This + * includes bytes in allocated blocks too small to split + * into smaller blocks but larger than the requested size. + * \param cur_blocks Current number of blocks in use, including free and used + */ +void mbedtls_memory_buffer_alloc_cur_get( size_t *cur_used, size_t *cur_blocks ); +#endif /* MBEDTLS_MEMORY_DEBUG */ + +/** + * \brief Verifies that all headers in the memory buffer are correct + * and contain sane values. Helps debug buffer-overflow errors. + * + * Prints out first failure if MBEDTLS_MEMORY_DEBUG is defined. + * Prints out full header information if MBEDTLS_MEMORY_DEBUG + * is defined. (Includes stack trace information for each block if + * MBEDTLS_MEMORY_BACKTRACE is defined as well). + * + * \return 0 if verified, 1 otherwise + */ +int mbedtls_memory_buffer_alloc_verify( void ); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_memory_buffer_alloc_self_test( int verbose ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* memory_buffer_alloc.h */ diff --git a/include/mbedtls/net.h b/include/mbedtls/net.h new file mode 100644 index 0000000..774559b --- /dev/null +++ b/include/mbedtls/net.h @@ -0,0 +1,31 @@ +/** + * \file net.h + * + * \brief Deprecated header file that includes mbedtls/net_sockets.h + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + * + * \deprecated Superseded by mbedtls/net_sockets.h + */ + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +#include "mbedtls/net_sockets.h" +#if defined(MBEDTLS_DEPRECATED_WARNING) +#warning "Deprecated header file: Superseded by mbedtls/net_sockets.h" +#endif /* MBEDTLS_DEPRECATED_WARNING */ +#endif /* !MBEDTLS_DEPRECATED_REMOVED */ diff --git a/include/mbedtls/net_sockets.h b/include/mbedtls/net_sockets.h new file mode 100644 index 0000000..de33552 --- /dev/null +++ b/include/mbedtls/net_sockets.h @@ -0,0 +1,225 @@ +/** + * \file net_sockets.h + * + * \brief Network communication functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_NET_SOCKETS_H +#define MBEDTLS_NET_SOCKETS_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "ssl.h" + +#include +#include + +#define MBEDTLS_ERR_NET_SOCKET_FAILED -0x0042 /**< Failed to open a socket. */ +#define MBEDTLS_ERR_NET_CONNECT_FAILED -0x0044 /**< The connection to the given server / port failed. */ +#define MBEDTLS_ERR_NET_BIND_FAILED -0x0046 /**< Binding of the socket failed. */ +#define MBEDTLS_ERR_NET_LISTEN_FAILED -0x0048 /**< Could not listen on the socket. */ +#define MBEDTLS_ERR_NET_ACCEPT_FAILED -0x004A /**< Could not accept the incoming connection. */ +#define MBEDTLS_ERR_NET_RECV_FAILED -0x004C /**< Reading information from the socket failed. */ +#define MBEDTLS_ERR_NET_SEND_FAILED -0x004E /**< Sending information through the socket failed. */ +#define MBEDTLS_ERR_NET_CONN_RESET -0x0050 /**< Connection was reset by peer. */ +#define MBEDTLS_ERR_NET_UNKNOWN_HOST -0x0052 /**< Failed to get an IP address for the given hostname. */ +#define MBEDTLS_ERR_NET_BUFFER_TOO_SMALL -0x0043 /**< Buffer is too small to hold the data. */ +#define MBEDTLS_ERR_NET_INVALID_CONTEXT -0x0045 /**< The context is invalid, eg because it was free()ed. */ + +#define MBEDTLS_NET_LISTEN_BACKLOG 10 /**< The backlog that listen() should use. */ + +#define MBEDTLS_NET_PROTO_TCP 0 /**< The TCP transport protocol */ +#define MBEDTLS_NET_PROTO_UDP 1 /**< The UDP transport protocol */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Wrapper type for sockets. + * + * Currently backed by just a file descriptor, but might be more in the future + * (eg two file descriptors for combined IPv4 + IPv6 support, or additional + * structures for hand-made UDP demultiplexing). + */ +typedef struct +{ + int fd; /**< The underlying file descriptor */ +} +mbedtls_net_context; + +/** + * \brief Initialize a context + * Just makes the context ready to be used or freed safely. + * + * \param ctx Context to initialize + */ +void mbedtls_net_init( mbedtls_net_context *ctx ); + +/** + * \brief Initiate a connection with host:port in the given protocol + * + * \param ctx Socket to use + * \param host Host to connect to + * \param port Port to connect to + * \param proto Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP + * + * \return 0 if successful, or one of: + * MBEDTLS_ERR_NET_SOCKET_FAILED, + * MBEDTLS_ERR_NET_UNKNOWN_HOST, + * MBEDTLS_ERR_NET_CONNECT_FAILED + * + * \note Sets the socket in connected mode even with UDP. + */ +int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, const char *port, int proto ); + +/** + * \brief Create a receiving socket on bind_ip:port in the chosen + * protocol. If bind_ip == NULL, all interfaces are bound. + * + * \param ctx Socket to use + * \param bind_ip IP to bind to, can be NULL + * \param port Port number to use + * \param proto Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP + * + * \return 0 if successful, or one of: + * MBEDTLS_ERR_NET_SOCKET_FAILED, + * MBEDTLS_ERR_NET_BIND_FAILED, + * MBEDTLS_ERR_NET_LISTEN_FAILED + * + * \note Regardless of the protocol, opens the sockets and binds it. + * In addition, make the socket listening if protocol is TCP. + */ +int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto ); + +/** + * \brief Accept a connection from a remote client + * + * \param bind_ctx Relevant socket + * \param client_ctx Will contain the connected client socket + * \param client_ip Will contain the client IP address + * \param buf_size Size of the client_ip buffer + * \param ip_len Will receive the size of the client IP written + * + * \return 0 if successful, or + * MBEDTLS_ERR_NET_ACCEPT_FAILED, or + * MBEDTLS_ERR_NET_BUFFER_TOO_SMALL if buf_size is too small, + * MBEDTLS_ERR_SSL_WANT_READ if bind_fd was set to + * non-blocking and accept() would block. + */ +int mbedtls_net_accept( mbedtls_net_context *bind_ctx, + mbedtls_net_context *client_ctx, + void *client_ip, size_t buf_size, size_t *ip_len ); + +/** + * \brief Set the socket blocking + * + * \param ctx Socket to set + * + * \return 0 if successful, or a non-zero error code + */ +int mbedtls_net_set_block( mbedtls_net_context *ctx ); + +/** + * \brief Set the socket non-blocking + * + * \param ctx Socket to set + * + * \return 0 if successful, or a non-zero error code + */ +int mbedtls_net_set_nonblock( mbedtls_net_context *ctx ); + +/** + * \brief Portable usleep helper + * + * \param usec Amount of microseconds to sleep + * + * \note Real amount of time slept will not be less than + * select()'s timeout granularity (typically, 10ms). + */ +void mbedtls_net_usleep( unsigned long usec ); + +/** + * \brief Read at most 'len' characters. If no error occurs, + * the actual amount read is returned. + * + * \param ctx Socket + * \param buf The buffer to write to + * \param len Maximum length of the buffer + * + * \return the number of bytes received, + * or a non-zero error code; with a non-blocking socket, + * MBEDTLS_ERR_SSL_WANT_READ indicates read() would block. + */ +int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len ); + +/** + * \brief Write at most 'len' characters. If no error occurs, + * the actual amount read is returned. + * + * \param ctx Socket + * \param buf The buffer to read from + * \param len The length of the buffer + * + * \return the number of bytes sent, + * or a non-zero error code; with a non-blocking socket, + * MBEDTLS_ERR_SSL_WANT_WRITE indicates write() would block. + */ +int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len ); + +/** + * \brief Read at most 'len' characters, blocking for at most + * 'timeout' seconds. If no error occurs, the actual amount + * read is returned. + * + * \param ctx Socket + * \param buf The buffer to write to + * \param len Maximum length of the buffer + * \param timeout Maximum number of milliseconds to wait for data + * 0 means no timeout (wait forever) + * + * \return the number of bytes received, + * or a non-zero error code: + * MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out, + * MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal. + * + * \note This function will block (until data becomes available or + * timeout is reached) even if the socket is set to + * non-blocking. Handling timeouts with non-blocking reads + * requires a different strategy. + */ +int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, size_t len, + uint32_t timeout ); + +/** + * \brief Gracefully shutdown the connection and free associated data + * + * \param ctx The context to free + */ +void mbedtls_net_free( mbedtls_net_context *ctx ); + +#ifdef __cplusplus +} +#endif + +#endif /* net_sockets.h */ diff --git a/include/mbedtls/oid.h b/include/mbedtls/oid.h new file mode 100644 index 0000000..fcecdaf --- /dev/null +++ b/include/mbedtls/oid.h @@ -0,0 +1,570 @@ +/** + * \file oid.h + * + * \brief Object Identifier (OID) database + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_OID_H +#define MBEDTLS_OID_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "asn1.h" +#include "pk.h" + +#include + +#if defined(MBEDTLS_CIPHER_C) +#include "cipher.h" +#endif + +#if defined(MBEDTLS_MD_C) +#include "md.h" +#endif + +#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) +#include "x509.h" +#endif + +#define MBEDTLS_ERR_OID_NOT_FOUND -0x002E /**< OID is not found. */ +#define MBEDTLS_ERR_OID_BUF_TOO_SMALL -0x000B /**< output buffer is too small */ + +/* + * Top level OID tuples + */ +#define MBEDTLS_OID_ISO_MEMBER_BODIES "\x2a" /* {iso(1) member-body(2)} */ +#define MBEDTLS_OID_ISO_IDENTIFIED_ORG "\x2b" /* {iso(1) identified-organization(3)} */ +#define MBEDTLS_OID_ISO_CCITT_DS "\x55" /* {joint-iso-ccitt(2) ds(5)} */ +#define MBEDTLS_OID_ISO_ITU_COUNTRY "\x60" /* {joint-iso-itu-t(2) country(16)} */ + +/* + * ISO Member bodies OID parts + */ +#define MBEDTLS_OID_COUNTRY_US "\x86\x48" /* {us(840)} */ +#define MBEDTLS_OID_ORG_RSA_DATA_SECURITY "\x86\xf7\x0d" /* {rsadsi(113549)} */ +#define MBEDTLS_OID_RSA_COMPANY MBEDTLS_OID_ISO_MEMBER_BODIES MBEDTLS_OID_COUNTRY_US \ + MBEDTLS_OID_ORG_RSA_DATA_SECURITY /* {iso(1) member-body(2) us(840) rsadsi(113549)} */ +#define MBEDTLS_OID_ORG_ANSI_X9_62 "\xce\x3d" /* ansi-X9-62(10045) */ +#define MBEDTLS_OID_ANSI_X9_62 MBEDTLS_OID_ISO_MEMBER_BODIES MBEDTLS_OID_COUNTRY_US \ + MBEDTLS_OID_ORG_ANSI_X9_62 + +/* + * ISO Identified organization OID parts + */ +#define MBEDTLS_OID_ORG_DOD "\x06" /* {dod(6)} */ +#define MBEDTLS_OID_ORG_OIW "\x0e" +#define MBEDTLS_OID_OIW_SECSIG MBEDTLS_OID_ORG_OIW "\x03" +#define MBEDTLS_OID_OIW_SECSIG_ALG MBEDTLS_OID_OIW_SECSIG "\x02" +#define MBEDTLS_OID_OIW_SECSIG_SHA1 MBEDTLS_OID_OIW_SECSIG_ALG "\x1a" +#define MBEDTLS_OID_ORG_CERTICOM "\x81\x04" /* certicom(132) */ +#define MBEDTLS_OID_CERTICOM MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ORG_CERTICOM +#define MBEDTLS_OID_ORG_TELETRUST "\x24" /* teletrust(36) */ +#define MBEDTLS_OID_TELETRUST MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ORG_TELETRUST + +/* + * ISO ITU OID parts + */ +#define MBEDTLS_OID_ORGANIZATION "\x01" /* {organization(1)} */ +#define MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ISO_ITU_COUNTRY MBEDTLS_OID_COUNTRY_US MBEDTLS_OID_ORGANIZATION /* {joint-iso-itu-t(2) country(16) us(840) organization(1)} */ + +#define MBEDTLS_OID_ORG_GOV "\x65" /* {gov(101)} */ +#define MBEDTLS_OID_GOV MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ORG_GOV /* {joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101)} */ + +#define MBEDTLS_OID_ORG_NETSCAPE "\x86\xF8\x42" /* {netscape(113730)} */ +#define MBEDTLS_OID_NETSCAPE MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ORG_NETSCAPE /* Netscape OID {joint-iso-itu-t(2) country(16) us(840) organization(1) netscape(113730)} */ + +/* ISO arc for standard certificate and CRL extensions */ +#define MBEDTLS_OID_ID_CE MBEDTLS_OID_ISO_CCITT_DS "\x1D" /**< id-ce OBJECT IDENTIFIER ::= {joint-iso-ccitt(2) ds(5) 29} */ + +/** + * Private Internet Extensions + * { iso(1) identified-organization(3) dod(6) internet(1) + * security(5) mechanisms(5) pkix(7) } + */ +#define MBEDTLS_OID_PKIX MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ORG_DOD "\x01\x05\x05\x07" + +/* + * Arc for standard naming attributes + */ +#define MBEDTLS_OID_AT MBEDTLS_OID_ISO_CCITT_DS "\x04" /**< id-at OBJECT IDENTIFIER ::= {joint-iso-ccitt(2) ds(5) 4} */ +#define MBEDTLS_OID_AT_CN MBEDTLS_OID_AT "\x03" /**< id-at-commonName AttributeType:= {id-at 3} */ +#define MBEDTLS_OID_AT_SUR_NAME MBEDTLS_OID_AT "\x04" /**< id-at-surName AttributeType:= {id-at 4} */ +#define MBEDTLS_OID_AT_SERIAL_NUMBER MBEDTLS_OID_AT "\x05" /**< id-at-serialNumber AttributeType:= {id-at 5} */ +#define MBEDTLS_OID_AT_COUNTRY MBEDTLS_OID_AT "\x06" /**< id-at-countryName AttributeType:= {id-at 6} */ +#define MBEDTLS_OID_AT_LOCALITY MBEDTLS_OID_AT "\x07" /**< id-at-locality AttributeType:= {id-at 7} */ +#define MBEDTLS_OID_AT_STATE MBEDTLS_OID_AT "\x08" /**< id-at-state AttributeType:= {id-at 8} */ +#define MBEDTLS_OID_AT_ORGANIZATION MBEDTLS_OID_AT "\x0A" /**< id-at-organizationName AttributeType:= {id-at 10} */ +#define MBEDTLS_OID_AT_ORG_UNIT MBEDTLS_OID_AT "\x0B" /**< id-at-organizationalUnitName AttributeType:= {id-at 11} */ +#define MBEDTLS_OID_AT_TITLE MBEDTLS_OID_AT "\x0C" /**< id-at-title AttributeType:= {id-at 12} */ +#define MBEDTLS_OID_AT_POSTAL_ADDRESS MBEDTLS_OID_AT "\x10" /**< id-at-postalAddress AttributeType:= {id-at 16} */ +#define MBEDTLS_OID_AT_POSTAL_CODE MBEDTLS_OID_AT "\x11" /**< id-at-postalCode AttributeType:= {id-at 17} */ +#define MBEDTLS_OID_AT_GIVEN_NAME MBEDTLS_OID_AT "\x2A" /**< id-at-givenName AttributeType:= {id-at 42} */ +#define MBEDTLS_OID_AT_INITIALS MBEDTLS_OID_AT "\x2B" /**< id-at-initials AttributeType:= {id-at 43} */ +#define MBEDTLS_OID_AT_GENERATION_QUALIFIER MBEDTLS_OID_AT "\x2C" /**< id-at-generationQualifier AttributeType:= {id-at 44} */ +#define MBEDTLS_OID_AT_UNIQUE_IDENTIFIER MBEDTLS_OID_AT "\x2D" /**< id-at-uniqueIdentifier AttributType:= {id-at 45} */ +#define MBEDTLS_OID_AT_DN_QUALIFIER MBEDTLS_OID_AT "\x2E" /**< id-at-dnQualifier AttributeType:= {id-at 46} */ +#define MBEDTLS_OID_AT_PSEUDONYM MBEDTLS_OID_AT "\x41" /**< id-at-pseudonym AttributeType:= {id-at 65} */ + +#define MBEDTLS_OID_DOMAIN_COMPONENT "\x09\x92\x26\x89\x93\xF2\x2C\x64\x01\x19" /** id-domainComponent AttributeType:= {itu-t(0) data(9) pss(2342) ucl(19200300) pilot(100) pilotAttributeType(1) domainComponent(25)} */ + +/* + * OIDs for standard certificate extensions + */ +#define MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_ID_CE "\x23" /**< id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 35 } */ +#define MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_ID_CE "\x0E" /**< id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 14 } */ +#define MBEDTLS_OID_KEY_USAGE MBEDTLS_OID_ID_CE "\x0F" /**< id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 } */ +#define MBEDTLS_OID_CERTIFICATE_POLICIES MBEDTLS_OID_ID_CE "\x20" /**< id-ce-certificatePolicies OBJECT IDENTIFIER ::= { id-ce 32 } */ +#define MBEDTLS_OID_POLICY_MAPPINGS MBEDTLS_OID_ID_CE "\x21" /**< id-ce-policyMappings OBJECT IDENTIFIER ::= { id-ce 33 } */ +#define MBEDTLS_OID_SUBJECT_ALT_NAME MBEDTLS_OID_ID_CE "\x11" /**< id-ce-subjectAltName OBJECT IDENTIFIER ::= { id-ce 17 } */ +#define MBEDTLS_OID_ISSUER_ALT_NAME MBEDTLS_OID_ID_CE "\x12" /**< id-ce-issuerAltName OBJECT IDENTIFIER ::= { id-ce 18 } */ +#define MBEDTLS_OID_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_ID_CE "\x09" /**< id-ce-subjectDirectoryAttributes OBJECT IDENTIFIER ::= { id-ce 9 } */ +#define MBEDTLS_OID_BASIC_CONSTRAINTS MBEDTLS_OID_ID_CE "\x13" /**< id-ce-basicConstraints OBJECT IDENTIFIER ::= { id-ce 19 } */ +#define MBEDTLS_OID_NAME_CONSTRAINTS MBEDTLS_OID_ID_CE "\x1E" /**< id-ce-nameConstraints OBJECT IDENTIFIER ::= { id-ce 30 } */ +#define MBEDTLS_OID_POLICY_CONSTRAINTS MBEDTLS_OID_ID_CE "\x24" /**< id-ce-policyConstraints OBJECT IDENTIFIER ::= { id-ce 36 } */ +#define MBEDTLS_OID_EXTENDED_KEY_USAGE MBEDTLS_OID_ID_CE "\x25" /**< id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 } */ +#define MBEDTLS_OID_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_ID_CE "\x1F" /**< id-ce-cRLDistributionPoints OBJECT IDENTIFIER ::= { id-ce 31 } */ +#define MBEDTLS_OID_INIHIBIT_ANYPOLICY MBEDTLS_OID_ID_CE "\x36" /**< id-ce-inhibitAnyPolicy OBJECT IDENTIFIER ::= { id-ce 54 } */ +#define MBEDTLS_OID_FRESHEST_CRL MBEDTLS_OID_ID_CE "\x2E" /**< id-ce-freshestCRL OBJECT IDENTIFIER ::= { id-ce 46 } */ + +/* + * Netscape certificate extensions + */ +#define MBEDTLS_OID_NS_CERT MBEDTLS_OID_NETSCAPE "\x01" +#define MBEDTLS_OID_NS_CERT_TYPE MBEDTLS_OID_NS_CERT "\x01" +#define MBEDTLS_OID_NS_BASE_URL MBEDTLS_OID_NS_CERT "\x02" +#define MBEDTLS_OID_NS_REVOCATION_URL MBEDTLS_OID_NS_CERT "\x03" +#define MBEDTLS_OID_NS_CA_REVOCATION_URL MBEDTLS_OID_NS_CERT "\x04" +#define MBEDTLS_OID_NS_RENEWAL_URL MBEDTLS_OID_NS_CERT "\x07" +#define MBEDTLS_OID_NS_CA_POLICY_URL MBEDTLS_OID_NS_CERT "\x08" +#define MBEDTLS_OID_NS_SSL_SERVER_NAME MBEDTLS_OID_NS_CERT "\x0C" +#define MBEDTLS_OID_NS_COMMENT MBEDTLS_OID_NS_CERT "\x0D" +#define MBEDTLS_OID_NS_DATA_TYPE MBEDTLS_OID_NETSCAPE "\x02" +#define MBEDTLS_OID_NS_CERT_SEQUENCE MBEDTLS_OID_NS_DATA_TYPE "\x05" + +/* + * OIDs for CRL extensions + */ +#define MBEDTLS_OID_PRIVATE_KEY_USAGE_PERIOD MBEDTLS_OID_ID_CE "\x10" +#define MBEDTLS_OID_CRL_NUMBER MBEDTLS_OID_ID_CE "\x14" /**< id-ce-cRLNumber OBJECT IDENTIFIER ::= { id-ce 20 } */ + +/* + * X.509 v3 Extended key usage OIDs + */ +#define MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE MBEDTLS_OID_EXTENDED_KEY_USAGE "\x00" /**< anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 } */ + +#define MBEDTLS_OID_KP MBEDTLS_OID_PKIX "\x03" /**< id-kp OBJECT IDENTIFIER ::= { id-pkix 3 } */ +#define MBEDTLS_OID_SERVER_AUTH MBEDTLS_OID_KP "\x01" /**< id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 } */ +#define MBEDTLS_OID_CLIENT_AUTH MBEDTLS_OID_KP "\x02" /**< id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 } */ +#define MBEDTLS_OID_CODE_SIGNING MBEDTLS_OID_KP "\x03" /**< id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 } */ +#define MBEDTLS_OID_EMAIL_PROTECTION MBEDTLS_OID_KP "\x04" /**< id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 } */ +#define MBEDTLS_OID_TIME_STAMPING MBEDTLS_OID_KP "\x08" /**< id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 } */ +#define MBEDTLS_OID_OCSP_SIGNING MBEDTLS_OID_KP "\x09" /**< id-kp-OCSPSigning OBJECT IDENTIFIER ::= { id-kp 9 } */ + +/* + * PKCS definition OIDs + */ + +#define MBEDTLS_OID_PKCS MBEDTLS_OID_RSA_COMPANY "\x01" /**< pkcs OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) 1 } */ +#define MBEDTLS_OID_PKCS1 MBEDTLS_OID_PKCS "\x01" /**< pkcs-1 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 1 } */ +#define MBEDTLS_OID_PKCS5 MBEDTLS_OID_PKCS "\x05" /**< pkcs-5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 5 } */ +#define MBEDTLS_OID_PKCS9 MBEDTLS_OID_PKCS "\x09" /**< pkcs-9 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 9 } */ +#define MBEDTLS_OID_PKCS12 MBEDTLS_OID_PKCS "\x0c" /**< pkcs-12 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 12 } */ + +/* + * PKCS#1 OIDs + */ +#define MBEDTLS_OID_PKCS1_RSA MBEDTLS_OID_PKCS1 "\x01" /**< rsaEncryption OBJECT IDENTIFIER ::= { pkcs-1 1 } */ +#define MBEDTLS_OID_PKCS1_MD2 MBEDTLS_OID_PKCS1 "\x02" /**< md2WithRSAEncryption ::= { pkcs-1 2 } */ +#define MBEDTLS_OID_PKCS1_MD4 MBEDTLS_OID_PKCS1 "\x03" /**< md4WithRSAEncryption ::= { pkcs-1 3 } */ +#define MBEDTLS_OID_PKCS1_MD5 MBEDTLS_OID_PKCS1 "\x04" /**< md5WithRSAEncryption ::= { pkcs-1 4 } */ +#define MBEDTLS_OID_PKCS1_SHA1 MBEDTLS_OID_PKCS1 "\x05" /**< sha1WithRSAEncryption ::= { pkcs-1 5 } */ +#define MBEDTLS_OID_PKCS1_SHA224 MBEDTLS_OID_PKCS1 "\x0e" /**< sha224WithRSAEncryption ::= { pkcs-1 14 } */ +#define MBEDTLS_OID_PKCS1_SHA256 MBEDTLS_OID_PKCS1 "\x0b" /**< sha256WithRSAEncryption ::= { pkcs-1 11 } */ +#define MBEDTLS_OID_PKCS1_SHA384 MBEDTLS_OID_PKCS1 "\x0c" /**< sha384WithRSAEncryption ::= { pkcs-1 12 } */ +#define MBEDTLS_OID_PKCS1_SHA512 MBEDTLS_OID_PKCS1 "\x0d" /**< sha512WithRSAEncryption ::= { pkcs-1 13 } */ + +#define MBEDTLS_OID_RSA_SHA_OBS "\x2B\x0E\x03\x02\x1D" + +#define MBEDTLS_OID_PKCS9_EMAIL MBEDTLS_OID_PKCS9 "\x01" /**< emailAddress AttributeType ::= { pkcs-9 1 } */ + +/* RFC 4055 */ +#define MBEDTLS_OID_RSASSA_PSS MBEDTLS_OID_PKCS1 "\x0a" /**< id-RSASSA-PSS ::= { pkcs-1 10 } */ +#define MBEDTLS_OID_MGF1 MBEDTLS_OID_PKCS1 "\x08" /**< id-mgf1 ::= { pkcs-1 8 } */ + +/* + * Digest algorithms + */ +#define MBEDTLS_OID_DIGEST_ALG_MD2 MBEDTLS_OID_RSA_COMPANY "\x02\x02" /**< id-mbedtls_md2 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 2 } */ +#define MBEDTLS_OID_DIGEST_ALG_MD4 MBEDTLS_OID_RSA_COMPANY "\x02\x04" /**< id-mbedtls_md4 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 4 } */ +#define MBEDTLS_OID_DIGEST_ALG_MD5 MBEDTLS_OID_RSA_COMPANY "\x02\x05" /**< id-mbedtls_md5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 5 } */ +#define MBEDTLS_OID_DIGEST_ALG_SHA1 MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_OIW_SECSIG_SHA1 /**< id-mbedtls_sha1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) oiw(14) secsig(3) algorithms(2) 26 } */ +#define MBEDTLS_OID_DIGEST_ALG_SHA224 MBEDTLS_OID_GOV "\x03\x04\x02\x04" /**< id-sha224 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 4 } */ +#define MBEDTLS_OID_DIGEST_ALG_SHA256 MBEDTLS_OID_GOV "\x03\x04\x02\x01" /**< id-mbedtls_sha256 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 1 } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA384 MBEDTLS_OID_GOV "\x03\x04\x02\x02" /**< id-sha384 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 2 } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA512 MBEDTLS_OID_GOV "\x03\x04\x02\x03" /**< id-mbedtls_sha512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 3 } */ + +#define MBEDTLS_OID_HMAC_SHA1 MBEDTLS_OID_RSA_COMPANY "\x02\x07" /**< id-hmacWithSHA1 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 7 } */ + +/* + * Encryption algorithms + */ +#define MBEDTLS_OID_DES_CBC MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_OIW_SECSIG_ALG "\x07" /**< desCBC OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) oiw(14) secsig(3) algorithms(2) 7 } */ +#define MBEDTLS_OID_DES_EDE3_CBC MBEDTLS_OID_RSA_COMPANY "\x03\x07" /**< des-ede3-cbc OBJECT IDENTIFIER ::= { iso(1) member-body(2) -- us(840) rsadsi(113549) encryptionAlgorithm(3) 7 } */ + +/* + * PKCS#5 OIDs + */ +#define MBEDTLS_OID_PKCS5_PBKDF2 MBEDTLS_OID_PKCS5 "\x0c" /**< id-PBKDF2 OBJECT IDENTIFIER ::= {pkcs-5 12} */ +#define MBEDTLS_OID_PKCS5_PBES2 MBEDTLS_OID_PKCS5 "\x0d" /**< id-PBES2 OBJECT IDENTIFIER ::= {pkcs-5 13} */ +#define MBEDTLS_OID_PKCS5_PBMAC1 MBEDTLS_OID_PKCS5 "\x0e" /**< id-PBMAC1 OBJECT IDENTIFIER ::= {pkcs-5 14} */ + +/* + * PKCS#5 PBES1 algorithms + */ +#define MBEDTLS_OID_PKCS5_PBE_MD2_DES_CBC MBEDTLS_OID_PKCS5 "\x01" /**< pbeWithMD2AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 1} */ +#define MBEDTLS_OID_PKCS5_PBE_MD2_RC2_CBC MBEDTLS_OID_PKCS5 "\x04" /**< pbeWithMD2AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 4} */ +#define MBEDTLS_OID_PKCS5_PBE_MD5_DES_CBC MBEDTLS_OID_PKCS5 "\x03" /**< pbeWithMD5AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 3} */ +#define MBEDTLS_OID_PKCS5_PBE_MD5_RC2_CBC MBEDTLS_OID_PKCS5 "\x06" /**< pbeWithMD5AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 6} */ +#define MBEDTLS_OID_PKCS5_PBE_SHA1_DES_CBC MBEDTLS_OID_PKCS5 "\x0a" /**< pbeWithSHA1AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 10} */ +#define MBEDTLS_OID_PKCS5_PBE_SHA1_RC2_CBC MBEDTLS_OID_PKCS5 "\x0b" /**< pbeWithSHA1AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 11} */ + +/* + * PKCS#8 OIDs + */ +#define MBEDTLS_OID_PKCS9_CSR_EXT_REQ MBEDTLS_OID_PKCS9 "\x0e" /**< extensionRequest OBJECT IDENTIFIER ::= {pkcs-9 14} */ + +/* + * PKCS#12 PBE OIDs + */ +#define MBEDTLS_OID_PKCS12_PBE MBEDTLS_OID_PKCS12 "\x01" /**< pkcs-12PbeIds OBJECT IDENTIFIER ::= {pkcs-12 1} */ + +#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_128 MBEDTLS_OID_PKCS12_PBE "\x01" /**< pbeWithSHAAnd128BitRC4 OBJECT IDENTIFIER ::= {pkcs-12PbeIds 1} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_40 MBEDTLS_OID_PKCS12_PBE "\x02" /**< pbeWithSHAAnd40BitRC4 OBJECT IDENTIFIER ::= {pkcs-12PbeIds 2} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_DES3_EDE_CBC MBEDTLS_OID_PKCS12_PBE "\x03" /**< pbeWithSHAAnd3-KeyTripleDES-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 3} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_DES2_EDE_CBC MBEDTLS_OID_PKCS12_PBE "\x04" /**< pbeWithSHAAnd2-KeyTripleDES-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 4} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_128_CBC MBEDTLS_OID_PKCS12_PBE "\x05" /**< pbeWithSHAAnd128BitRC2-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 5} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_40_CBC MBEDTLS_OID_PKCS12_PBE "\x06" /**< pbeWithSHAAnd40BitRC2-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 6} */ + +/* + * EC key algorithms from RFC 5480 + */ + +/* id-ecPublicKey OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) keyType(2) 1 } */ +#define MBEDTLS_OID_EC_ALG_UNRESTRICTED MBEDTLS_OID_ANSI_X9_62 "\x02\01" + +/* id-ecDH OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) + * schemes(1) ecdh(12) } */ +#define MBEDTLS_OID_EC_ALG_ECDH MBEDTLS_OID_CERTICOM "\x01\x0c" + +/* + * ECParameters namedCurve identifiers, from RFC 5480, RFC 5639, and SEC2 + */ + +/* secp192r1 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) 1 } */ +#define MBEDTLS_OID_EC_GRP_SECP192R1 MBEDTLS_OID_ANSI_X9_62 "\x03\x01\x01" + +/* secp224r1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 33 } */ +#define MBEDTLS_OID_EC_GRP_SECP224R1 MBEDTLS_OID_CERTICOM "\x00\x21" + +/* secp256r1 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) 7 } */ +#define MBEDTLS_OID_EC_GRP_SECP256R1 MBEDTLS_OID_ANSI_X9_62 "\x03\x01\x07" + +/* secp384r1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 34 } */ +#define MBEDTLS_OID_EC_GRP_SECP384R1 MBEDTLS_OID_CERTICOM "\x00\x22" + +/* secp521r1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 35 } */ +#define MBEDTLS_OID_EC_GRP_SECP521R1 MBEDTLS_OID_CERTICOM "\x00\x23" + +/* secp192k1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 31 } */ +#define MBEDTLS_OID_EC_GRP_SECP192K1 MBEDTLS_OID_CERTICOM "\x00\x1f" + +/* secp224k1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 32 } */ +#define MBEDTLS_OID_EC_GRP_SECP224K1 MBEDTLS_OID_CERTICOM "\x00\x20" + +/* secp256k1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 10 } */ +#define MBEDTLS_OID_EC_GRP_SECP256K1 MBEDTLS_OID_CERTICOM "\x00\x0a" + +/* RFC 5639 4.1 + * ecStdCurvesAndGeneration OBJECT IDENTIFIER::= {iso(1) + * identified-organization(3) teletrust(36) algorithm(3) signature- + * algorithm(3) ecSign(2) 8} + * ellipticCurve OBJECT IDENTIFIER ::= {ecStdCurvesAndGeneration 1} + * versionOne OBJECT IDENTIFIER ::= {ellipticCurve 1} */ +#define MBEDTLS_OID_EC_BRAINPOOL_V1 MBEDTLS_OID_TELETRUST "\x03\x03\x02\x08\x01\x01" + +/* brainpoolP256r1 OBJECT IDENTIFIER ::= {versionOne 7} */ +#define MBEDTLS_OID_EC_GRP_BP256R1 MBEDTLS_OID_EC_BRAINPOOL_V1 "\x07" + +/* brainpoolP384r1 OBJECT IDENTIFIER ::= {versionOne 11} */ +#define MBEDTLS_OID_EC_GRP_BP384R1 MBEDTLS_OID_EC_BRAINPOOL_V1 "\x0B" + +/* brainpoolP512r1 OBJECT IDENTIFIER ::= {versionOne 13} */ +#define MBEDTLS_OID_EC_GRP_BP512R1 MBEDTLS_OID_EC_BRAINPOOL_V1 "\x0D" + +/* + * SEC1 C.1 + * + * prime-field OBJECT IDENTIFIER ::= { id-fieldType 1 } + * id-fieldType OBJECT IDENTIFIER ::= { ansi-X9-62 fieldType(1)} + */ +#define MBEDTLS_OID_ANSI_X9_62_FIELD_TYPE MBEDTLS_OID_ANSI_X9_62 "\x01" +#define MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD MBEDTLS_OID_ANSI_X9_62_FIELD_TYPE "\x01" + +/* + * ECDSA signature identifiers, from RFC 5480 + */ +#define MBEDTLS_OID_ANSI_X9_62_SIG MBEDTLS_OID_ANSI_X9_62 "\x04" /* signatures(4) */ +#define MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 MBEDTLS_OID_ANSI_X9_62_SIG "\x03" /* ecdsa-with-SHA2(3) */ + +/* ecdsa-with-SHA1 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) 1 } */ +#define MBEDTLS_OID_ECDSA_SHA1 MBEDTLS_OID_ANSI_X9_62_SIG "\x01" + +/* ecdsa-with-SHA224 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 1 } */ +#define MBEDTLS_OID_ECDSA_SHA224 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x01" + +/* ecdsa-with-SHA256 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 2 } */ +#define MBEDTLS_OID_ECDSA_SHA256 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x02" + +/* ecdsa-with-SHA384 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 3 } */ +#define MBEDTLS_OID_ECDSA_SHA384 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x03" + +/* ecdsa-with-SHA512 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 4 } */ +#define MBEDTLS_OID_ECDSA_SHA512 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x04" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Base OID descriptor structure + */ +typedef struct { + const char *asn1; /*!< OID ASN.1 representation */ + size_t asn1_len; /*!< length of asn1 */ + const char *name; /*!< official name (e.g. from RFC) */ + const char *description; /*!< human friendly description */ +} mbedtls_oid_descriptor_t; + +/** + * \brief Translate an ASN.1 OID into its numeric representation + * (e.g. "\x2A\x86\x48\x86\xF7\x0D" into "1.2.840.113549") + * + * \param buf buffer to put representation in + * \param size size of the buffer + * \param oid OID to translate + * + * \return Length of the string written (excluding final NULL) or + * MBEDTLS_ERR_OID_BUF_TOO_SMALL in case of error + */ +int mbedtls_oid_get_numeric_string( char *buf, size_t size, const mbedtls_asn1_buf *oid ); + +#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) +/** + * \brief Translate an X.509 extension OID into local values + * + * \param oid OID to use + * \param ext_type place to store the extension type + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_x509_ext_type( const mbedtls_asn1_buf *oid, int *ext_type ); +#endif + +/** + * \brief Translate an X.509 attribute type OID into the short name + * (e.g. the OID for an X520 Common Name into "CN") + * + * \param oid OID to use + * \param short_name place to store the string pointer + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_attr_short_name( const mbedtls_asn1_buf *oid, const char **short_name ); + +/** + * \brief Translate PublicKeyAlgorithm OID into pk_type + * + * \param oid OID to use + * \param pk_alg place to store public key algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_pk_alg( const mbedtls_asn1_buf *oid, mbedtls_pk_type_t *pk_alg ); + +/** + * \brief Translate pk_type into PublicKeyAlgorithm OID + * + * \param pk_alg Public key type to look for + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_pk_alg( mbedtls_pk_type_t pk_alg, + const char **oid, size_t *olen ); + +#if defined(MBEDTLS_ECP_C) +/** + * \brief Translate NamedCurve OID into an EC group identifier + * + * \param oid OID to use + * \param grp_id place to store group id + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_ec_grp( const mbedtls_asn1_buf *oid, mbedtls_ecp_group_id *grp_id ); + +/** + * \brief Translate EC group identifier into NamedCurve OID + * + * \param grp_id EC group identifier + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_ec_grp( mbedtls_ecp_group_id grp_id, + const char **oid, size_t *olen ); +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_MD_C) +/** + * \brief Translate SignatureAlgorithm OID into md_type and pk_type + * + * \param oid OID to use + * \param md_alg place to store message digest algorithm + * \param pk_alg place to store public key algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_sig_alg( const mbedtls_asn1_buf *oid, + mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg ); + +/** + * \brief Translate SignatureAlgorithm OID into description + * + * \param oid OID to use + * \param desc place to store string pointer + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_sig_alg_desc( const mbedtls_asn1_buf *oid, const char **desc ); + +/** + * \brief Translate md_type and pk_type into SignatureAlgorithm OID + * + * \param md_alg message digest algorithm + * \param pk_alg public key algorithm + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_sig_alg( mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, + const char **oid, size_t *olen ); + +/** + * \brief Translate hash algorithm OID into md_type + * + * \param oid OID to use + * \param md_alg place to store message digest algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_md_alg( const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_alg ); +#endif /* MBEDTLS_MD_C */ + +/** + * \brief Translate Extended Key Usage OID into description + * + * \param oid OID to use + * \param desc place to store string pointer + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_extended_key_usage( const mbedtls_asn1_buf *oid, const char **desc ); + +/** + * \brief Translate md_type into hash algorithm OID + * + * \param md_alg message digest algorithm + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_md( mbedtls_md_type_t md_alg, const char **oid, size_t *olen ); + +#if defined(MBEDTLS_CIPHER_C) +/** + * \brief Translate encryption algorithm OID into cipher_type + * + * \param oid OID to use + * \param cipher_alg place to store cipher algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_cipher_alg( const mbedtls_asn1_buf *oid, mbedtls_cipher_type_t *cipher_alg ); +#endif /* MBEDTLS_CIPHER_C */ + +#if defined(MBEDTLS_PKCS12_C) +/** + * \brief Translate PKCS#12 PBE algorithm OID into md_type and + * cipher_type + * + * \param oid OID to use + * \param md_alg place to store message digest algorithm + * \param cipher_alg place to store cipher algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_pkcs12_pbe_alg( const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_alg, + mbedtls_cipher_type_t *cipher_alg ); +#endif /* MBEDTLS_PKCS12_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* oid.h */ diff --git a/include/mbedtls/padlock.h b/include/mbedtls/padlock.h new file mode 100644 index 0000000..2045a5a --- /dev/null +++ b/include/mbedtls/padlock.h @@ -0,0 +1,107 @@ +/** + * \file padlock.h + * + * \brief VIA PadLock ACE for HW encryption/decryption supported by some + * processors + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_PADLOCK_H +#define MBEDTLS_PADLOCK_H + +#include "aes.h" + +#define MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED -0x0030 /**< Input data should be aligned. */ + +#if defined(__has_feature) +#if __has_feature(address_sanitizer) +#define MBEDTLS_HAVE_ASAN +#endif +#endif + +/* Some versions of ASan result in errors about not enough registers */ +#if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && defined(__i386__) && \ + !defined(MBEDTLS_HAVE_ASAN) + +#ifndef MBEDTLS_HAVE_X86 +#define MBEDTLS_HAVE_X86 +#endif + +#include + +#define MBEDTLS_PADLOCK_RNG 0x000C +#define MBEDTLS_PADLOCK_ACE 0x00C0 +#define MBEDTLS_PADLOCK_PHE 0x0C00 +#define MBEDTLS_PADLOCK_PMM 0x3000 + +#define MBEDTLS_PADLOCK_ALIGN16(x) (uint32_t *) (16 + ((int32_t) x & ~15)) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief PadLock detection routine + * + * \param feature The feature to detect + * + * \return 1 if CPU has support for the feature, 0 otherwise + */ +int mbedtls_padlock_has_support( int feature ); + +/** + * \brief PadLock AES-ECB block en(de)cryption + * + * \param ctx AES context + * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT + * \param input 16-byte input block + * \param output 16-byte output block + * + * \return 0 if success, 1 if operation failed + */ +int mbedtls_padlock_xcryptecb( mbedtls_aes_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ); + +/** + * \brief PadLock AES-CBC buffer en(de)cryption + * + * \param ctx AES context + * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if success, 1 if operation failed + */ +int mbedtls_padlock_xcryptcbc( mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ); + +#ifdef __cplusplus +} +#endif + +#endif /* HAVE_X86 */ + +#endif /* padlock.h */ diff --git a/include/mbedtls/pem.h b/include/mbedtls/pem.h new file mode 100644 index 0000000..54dc02d --- /dev/null +++ b/include/mbedtls/pem.h @@ -0,0 +1,129 @@ +/** + * \file pem.h + * + * \brief Privacy Enhanced Mail (PEM) decoding + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_PEM_H +#define MBEDTLS_PEM_H + +#include + +/** + * \name PEM Error codes + * These error codes are returned in case of errors reading the + * PEM data. + * \{ + */ +#define MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT -0x1080 /**< No PEM header or footer found. */ +#define MBEDTLS_ERR_PEM_INVALID_DATA -0x1100 /**< PEM string is not as expected. */ +#define MBEDTLS_ERR_PEM_ALLOC_FAILED -0x1180 /**< Failed to allocate memory. */ +#define MBEDTLS_ERR_PEM_INVALID_ENC_IV -0x1200 /**< RSA IV is not in hex-format. */ +#define MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG -0x1280 /**< Unsupported key encryption algorithm. */ +#define MBEDTLS_ERR_PEM_PASSWORD_REQUIRED -0x1300 /**< Private key password can't be empty. */ +#define MBEDTLS_ERR_PEM_PASSWORD_MISMATCH -0x1380 /**< Given private key password does not allow for correct decryption. */ +#define MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE -0x1400 /**< Unavailable feature, e.g. hashing/encryption combination. */ +#define MBEDTLS_ERR_PEM_BAD_INPUT_DATA -0x1480 /**< Bad input parameters to function. */ +/* \} name */ + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) +/** + * \brief PEM context structure + */ +typedef struct +{ + unsigned char *buf; /*!< buffer for decoded data */ + size_t buflen; /*!< length of the buffer */ + unsigned char *info; /*!< buffer for extra header information */ +} +mbedtls_pem_context; + +/** + * \brief PEM context setup + * + * \param ctx context to be initialized + */ +void mbedtls_pem_init( mbedtls_pem_context *ctx ); + +/** + * \brief Read a buffer for PEM information and store the resulting + * data into the specified context buffers. + * + * \param ctx context to use + * \param header header string to seek and expect + * \param footer footer string to seek and expect + * \param data source data to look in (must be nul-terminated) + * \param pwd password for decryption (can be NULL) + * \param pwdlen length of password + * \param use_len destination for total length used (set after header is + * correctly read, so unless you get + * MBEDTLS_ERR_PEM_BAD_INPUT_DATA or + * MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT, use_len is + * the length to skip) + * + * \note Attempts to check password correctness by verifying if + * the decrypted text starts with an ASN.1 sequence of + * appropriate length + * + * \return 0 on success, or a specific PEM error code + */ +int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer, + const unsigned char *data, + const unsigned char *pwd, + size_t pwdlen, size_t *use_len ); + +/** + * \brief PEM context memory freeing + * + * \param ctx context to be freed + */ +void mbedtls_pem_free( mbedtls_pem_context *ctx ); +#endif /* MBEDTLS_PEM_PARSE_C */ + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a buffer of PEM information from a DER encoded + * buffer. + * + * \param header header string to write + * \param footer footer string to write + * \param der_data DER data to write + * \param der_len length of the DER data + * \param buf buffer to write to + * \param buf_len length of output buffer + * \param olen total length written / required (if buf_len is not enough) + * + * \return 0 on success, or a specific PEM or BASE64 error code. On + * MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL olen is the required + * size. + */ +int mbedtls_pem_write_buffer( const char *header, const char *footer, + const unsigned char *der_data, size_t der_len, + unsigned char *buf, size_t buf_len, size_t *olen ); +#endif /* MBEDTLS_PEM_WRITE_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* pem.h */ diff --git a/include/mbedtls/pk.h b/include/mbedtls/pk.h new file mode 100644 index 0000000..f9f9b9b --- /dev/null +++ b/include/mbedtls/pk.h @@ -0,0 +1,616 @@ +/** + * \file pk.h + * + * \brief Public Key abstraction layer + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#ifndef MBEDTLS_PK_H +#define MBEDTLS_PK_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "md.h" + +#if defined(MBEDTLS_RSA_C) +#include "rsa.h" +#endif + +#if defined(MBEDTLS_ECP_C) +#include "ecp.h" +#endif + +#if defined(MBEDTLS_ECDSA_C) +#include "ecdsa.h" +#endif + +#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +#define MBEDTLS_ERR_PK_ALLOC_FAILED -0x3F80 /**< Memory allocation failed. */ +#define MBEDTLS_ERR_PK_TYPE_MISMATCH -0x3F00 /**< Type mismatch, eg attempt to encrypt with an ECDSA key */ +#define MBEDTLS_ERR_PK_BAD_INPUT_DATA -0x3E80 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_PK_FILE_IO_ERROR -0x3E00 /**< Read/write of file failed. */ +#define MBEDTLS_ERR_PK_KEY_INVALID_VERSION -0x3D80 /**< Unsupported key version */ +#define MBEDTLS_ERR_PK_KEY_INVALID_FORMAT -0x3D00 /**< Invalid key tag or value. */ +#define MBEDTLS_ERR_PK_UNKNOWN_PK_ALG -0x3C80 /**< Key algorithm is unsupported (only RSA and EC are supported). */ +#define MBEDTLS_ERR_PK_PASSWORD_REQUIRED -0x3C00 /**< Private key password can't be empty. */ +#define MBEDTLS_ERR_PK_PASSWORD_MISMATCH -0x3B80 /**< Given private key password does not allow for correct decryption. */ +#define MBEDTLS_ERR_PK_INVALID_PUBKEY -0x3B00 /**< The pubkey tag or value is invalid (only RSA and EC are supported). */ +#define MBEDTLS_ERR_PK_INVALID_ALG -0x3A80 /**< The algorithm tag or value is invalid. */ +#define MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE -0x3A00 /**< Elliptic curve is unsupported (only NIST curves are supported). */ +#define MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE -0x3980 /**< Unavailable feature, e.g. RSA disabled for RSA key. */ +#define MBEDTLS_ERR_PK_SIG_LEN_MISMATCH -0x3900 /**< The signature is valid but its length is less than expected. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Public key types + */ +typedef enum { + MBEDTLS_PK_NONE=0, + MBEDTLS_PK_RSA, + MBEDTLS_PK_ECKEY, + MBEDTLS_PK_ECKEY_DH, + MBEDTLS_PK_ECDSA, + MBEDTLS_PK_RSA_ALT, + MBEDTLS_PK_RSASSA_PSS, +} mbedtls_pk_type_t; + +/** + * \brief Options for RSASSA-PSS signature verification. + * See \c mbedtls_rsa_rsassa_pss_verify_ext() + */ +typedef struct +{ + mbedtls_md_type_t mgf1_hash_id; + int expected_salt_len; + +} mbedtls_pk_rsassa_pss_options; + +/** + * \brief Types for interfacing with the debug module + */ +typedef enum +{ + MBEDTLS_PK_DEBUG_NONE = 0, + MBEDTLS_PK_DEBUG_MPI, + MBEDTLS_PK_DEBUG_ECP, +} mbedtls_pk_debug_type; + +/** + * \brief Item to send to the debug module + */ +typedef struct +{ + mbedtls_pk_debug_type type; + const char *name; + void *value; +} mbedtls_pk_debug_item; + +/** Maximum number of item send for debugging, plus 1 */ +#define MBEDTLS_PK_DEBUG_MAX_ITEMS 3 + +/** + * \brief Public key information and operations + */ +typedef struct mbedtls_pk_info_t mbedtls_pk_info_t; + +/** + * \brief Public key container + */ +typedef struct +{ + const mbedtls_pk_info_t * pk_info; /**< Public key informations */ + void * pk_ctx; /**< Underlying public key context */ +} mbedtls_pk_context; + +#if defined(MBEDTLS_RSA_C) +/** + * Quick access to an RSA context inside a PK context. + * + * \warning You must make sure the PK context actually holds an RSA context + * before using this function! + */ +static inline mbedtls_rsa_context *mbedtls_pk_rsa( const mbedtls_pk_context pk ) +{ + return( (mbedtls_rsa_context *) (pk).pk_ctx ); +} +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) +/** + * Quick access to an EC context inside a PK context. + * + * \warning You must make sure the PK context actually holds an EC context + * before using this function! + */ +static inline mbedtls_ecp_keypair *mbedtls_pk_ec( const mbedtls_pk_context pk ) +{ + return( (mbedtls_ecp_keypair *) (pk).pk_ctx ); +} +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/** + * \brief Types for RSA-alt abstraction + */ +typedef int (*mbedtls_pk_rsa_alt_decrypt_func)( void *ctx, int mode, size_t *olen, + const unsigned char *input, unsigned char *output, + size_t output_max_len ); +typedef int (*mbedtls_pk_rsa_alt_sign_func)( void *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, + int mode, mbedtls_md_type_t md_alg, unsigned int hashlen, + const unsigned char *hash, unsigned char *sig ); +typedef size_t (*mbedtls_pk_rsa_alt_key_len_func)( void *ctx ); +#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ + +/** + * \brief Return information associated with the given PK type + * + * \param pk_type PK type to search for. + * + * \return The PK info associated with the type or NULL if not found. + */ +const mbedtls_pk_info_t *mbedtls_pk_info_from_type( mbedtls_pk_type_t pk_type ); + +/** + * \brief Initialize a mbedtls_pk_context (as NONE) + */ +void mbedtls_pk_init( mbedtls_pk_context *ctx ); + +/** + * \brief Free a mbedtls_pk_context + */ +void mbedtls_pk_free( mbedtls_pk_context *ctx ); + +/** + * \brief Initialize a PK context with the information given + * and allocates the type-specific PK subcontext. + * + * \param ctx Context to initialize. Must be empty (type NONE). + * \param info Information to use + * + * \return 0 on success, + * MBEDTLS_ERR_PK_BAD_INPUT_DATA on invalid input, + * MBEDTLS_ERR_PK_ALLOC_FAILED on allocation failure. + * + * \note For contexts holding an RSA-alt key, use + * \c mbedtls_pk_setup_rsa_alt() instead. + */ +int mbedtls_pk_setup( mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info ); + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/** + * \brief Initialize an RSA-alt context + * + * \param ctx Context to initialize. Must be empty (type NONE). + * \param key RSA key pointer + * \param decrypt_func Decryption function + * \param sign_func Signing function + * \param key_len_func Function returning key length in bytes + * + * \return 0 on success, or MBEDTLS_ERR_PK_BAD_INPUT_DATA if the + * context wasn't already initialized as RSA_ALT. + * + * \note This function replaces \c mbedtls_pk_setup() for RSA-alt. + */ +int mbedtls_pk_setup_rsa_alt( mbedtls_pk_context *ctx, void * key, + mbedtls_pk_rsa_alt_decrypt_func decrypt_func, + mbedtls_pk_rsa_alt_sign_func sign_func, + mbedtls_pk_rsa_alt_key_len_func key_len_func ); +#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ + +/** + * \brief Get the size in bits of the underlying key + * + * \param ctx Context to use + * + * \return Key size in bits, or 0 on error + */ +size_t mbedtls_pk_get_bitlen( const mbedtls_pk_context *ctx ); + +/** + * \brief Get the length in bytes of the underlying key + * \param ctx Context to use + * + * \return Key length in bytes, or 0 on error + */ +static inline size_t mbedtls_pk_get_len( const mbedtls_pk_context *ctx ) +{ + return( ( mbedtls_pk_get_bitlen( ctx ) + 7 ) / 8 ); +} + +/** + * \brief Tell if a context can do the operation given by type + * + * \param ctx Context to test + * \param type Target type + * + * \return 0 if context can't do the operations, + * 1 otherwise. + */ +int mbedtls_pk_can_do( const mbedtls_pk_context *ctx, mbedtls_pk_type_t type ); + +/** + * \brief Verify signature (including padding if relevant). + * + * \param ctx PK context to use + * \param md_alg Hash algorithm used (see notes) + * \param hash Hash of the message to sign + * \param hash_len Hash length or 0 (see notes) + * \param sig Signature to verify + * \param sig_len Signature length + * + * \return 0 on success (signature is valid), + * MBEDTLS_ERR_PK_SIG_LEN_MISMATCH if the signature is + * valid but its actual length is less than sig_len, + * or a specific error code. + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * Use \c mbedtls_pk_verify_ext( MBEDTLS_PK_RSASSA_PSS, ... ) + * to verify RSASSA_PSS signatures. + * + * \note If hash_len is 0, then the length associated with md_alg + * is used instead, or an error returned if it is invalid. + * + * \note md_alg may be MBEDTLS_MD_NONE, only if hash_len != 0 + */ +int mbedtls_pk_verify( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ); + +/** + * \brief Verify signature, with options. + * (Includes verification of the padding depending on type.) + * + * \param type Signature type (inc. possible padding type) to verify + * \param options Pointer to type-specific options, or NULL + * \param ctx PK context to use + * \param md_alg Hash algorithm used (see notes) + * \param hash Hash of the message to sign + * \param hash_len Hash length or 0 (see notes) + * \param sig Signature to verify + * \param sig_len Signature length + * + * \return 0 on success (signature is valid), + * MBEDTLS_ERR_PK_TYPE_MISMATCH if the PK context can't be + * used for this type of signatures, + * MBEDTLS_ERR_PK_SIG_LEN_MISMATCH if the signature is + * valid but its actual length is less than sig_len, + * or a specific error code. + * + * \note If hash_len is 0, then the length associated with md_alg + * is used instead, or an error returned if it is invalid. + * + * \note md_alg may be MBEDTLS_MD_NONE, only if hash_len != 0 + * + * \note If type is MBEDTLS_PK_RSASSA_PSS, then options must point + * to a mbedtls_pk_rsassa_pss_options structure, + * otherwise it must be NULL. + */ +int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options, + mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ); + +/** + * \brief Make signature, including padding if relevant. + * + * \param ctx PK context to use - must hold a private key + * \param md_alg Hash algorithm used (see notes) + * \param hash Hash of the message to sign + * \param hash_len Hash length or 0 (see notes) + * \param sig Place to write the signature + * \param sig_len Number of bytes written + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \return 0 on success, or a specific error code. + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * There is no interface in the PK module to make RSASSA-PSS + * signatures yet. + * + * \note If hash_len is 0, then the length associated with md_alg + * is used instead, or an error returned if it is invalid. + * + * \note For RSA, md_alg may be MBEDTLS_MD_NONE if hash_len != 0. + * For ECDSA, md_alg may never be MBEDTLS_MD_NONE. + */ +int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +/** + * \brief Decrypt message (including padding if relevant). + * + * \param ctx PK context to use - must hold a private key + * \param input Input to decrypt + * \param ilen Input size + * \param output Decrypted output + * \param olen Decrypted message length + * \param osize Size of the output buffer + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * + * \return 0 on success, or a specific error code. + */ +int mbedtls_pk_decrypt( mbedtls_pk_context *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +/** + * \brief Encrypt message (including padding if relevant). + * + * \param ctx PK context to use + * \param input Message to encrypt + * \param ilen Message size + * \param output Encrypted output + * \param olen Encrypted output length + * \param osize Size of the output buffer + * \param f_rng RNG function + * \param p_rng RNG parameter + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * + * \return 0 on success, or a specific error code. + */ +int mbedtls_pk_encrypt( mbedtls_pk_context *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +/** + * \brief Check if a public-private pair of keys matches. + * + * \param pub Context holding a public key. + * \param prv Context holding a private (and public) key. + * + * \return 0 on success or MBEDTLS_ERR_PK_BAD_INPUT_DATA + */ +int mbedtls_pk_check_pair( const mbedtls_pk_context *pub, const mbedtls_pk_context *prv ); + +/** + * \brief Export debug information + * + * \param ctx Context to use + * \param items Place to write debug items + * + * \return 0 on success or MBEDTLS_ERR_PK_BAD_INPUT_DATA + */ +int mbedtls_pk_debug( const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items ); + +/** + * \brief Access the type name + * + * \param ctx Context to use + * + * \return Type name on success, or "invalid PK" + */ +const char * mbedtls_pk_get_name( const mbedtls_pk_context *ctx ); + +/** + * \brief Get the key type + * + * \param ctx Context to use + * + * \return Type on success, or MBEDTLS_PK_NONE + */ +mbedtls_pk_type_t mbedtls_pk_get_type( const mbedtls_pk_context *ctx ); + +#if defined(MBEDTLS_PK_PARSE_C) +/** \ingroup pk_module */ +/** + * \brief Parse a private key in PEM or DER format + * + * \param ctx key to be initialized + * \param key input buffer + * \param keylen size of the buffer + * (including the terminating null byte for PEM data) + * \param pwd password for decryption (optional) + * \param pwdlen size of the password + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a + * specific key type, check the result with mbedtls_pk_can_do(). + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_key( mbedtls_pk_context *ctx, + const unsigned char *key, size_t keylen, + const unsigned char *pwd, size_t pwdlen ); + +/** \ingroup pk_module */ +/** + * \brief Parse a public key in PEM or DER format + * + * \param ctx key to be initialized + * \param key input buffer + * \param keylen size of the buffer + * (including the terminating null byte for PEM data) + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a + * specific key type, check the result with mbedtls_pk_can_do(). + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_public_key( mbedtls_pk_context *ctx, + const unsigned char *key, size_t keylen ); + +#if defined(MBEDTLS_FS_IO) +/** \ingroup pk_module */ +/** + * \brief Load and parse a private key + * + * \param ctx key to be initialized + * \param path filename to read the private key from + * \param password password to decrypt the file (can be NULL) + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a + * specific key type, check the result with mbedtls_pk_can_do(). + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_keyfile( mbedtls_pk_context *ctx, + const char *path, const char *password ); + +/** \ingroup pk_module */ +/** + * \brief Load and parse a public key + * + * \param ctx key to be initialized + * \param path filename to read the public key from + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If + * you need a specific key type, check the result with + * mbedtls_pk_can_do(). + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_public_keyfile( mbedtls_pk_context *ctx, const char *path ); +#endif /* MBEDTLS_FS_IO */ +#endif /* MBEDTLS_PK_PARSE_C */ + +#if defined(MBEDTLS_PK_WRITE_C) +/** + * \brief Write a private key to a PKCS#1 or SEC1 DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx private to write away + * \param buf buffer to write to + * \param size size of the buffer + * + * \return length of data written if successful, or a specific + * error code + */ +int mbedtls_pk_write_key_der( mbedtls_pk_context *ctx, unsigned char *buf, size_t size ); + +/** + * \brief Write a public key to a SubjectPublicKeyInfo DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx public key to write away + * \param buf buffer to write to + * \param size size of the buffer + * + * \return length of data written if successful, or a specific + * error code + */ +int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *ctx, unsigned char *buf, size_t size ); + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a public key to a PEM string + * + * \param ctx public key to write away + * \param buf buffer to write to + * \param size size of the buffer + * + * \return 0 if successful, or a specific error code + */ +int mbedtls_pk_write_pubkey_pem( mbedtls_pk_context *ctx, unsigned char *buf, size_t size ); + +/** + * \brief Write a private key to a PKCS#1 or SEC1 PEM string + * + * \param ctx private to write away + * \param buf buffer to write to + * \param size size of the buffer + * + * \return 0 if successful, or a specific error code + */ +int mbedtls_pk_write_key_pem( mbedtls_pk_context *ctx, unsigned char *buf, size_t size ); +#endif /* MBEDTLS_PEM_WRITE_C */ +#endif /* MBEDTLS_PK_WRITE_C */ + +/* + * WARNING: Low-level functions. You probably do not want to use these unless + * you are certain you do ;) + */ + +#if defined(MBEDTLS_PK_PARSE_C) +/** + * \brief Parse a SubjectPublicKeyInfo DER structure + * + * \param p the position in the ASN.1 data + * \param end end of the buffer + * \param pk the key to fill + * + * \return 0 if successful, or a specific PK error code + */ +int mbedtls_pk_parse_subpubkey( unsigned char **p, const unsigned char *end, + mbedtls_pk_context *pk ); +#endif /* MBEDTLS_PK_PARSE_C */ + +#if defined(MBEDTLS_PK_WRITE_C) +/** + * \brief Write a subjectPublicKey to ASN.1 data + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param key public key to write away + * + * \return the length written or a negative error code + */ +int mbedtls_pk_write_pubkey( unsigned char **p, unsigned char *start, + const mbedtls_pk_context *key ); +#endif /* MBEDTLS_PK_WRITE_C */ + +/* + * Internal module functions. You probably do not want to use these unless you + * know you do. + */ +#if defined(MBEDTLS_FS_IO) +int mbedtls_pk_load_file( const char *path, unsigned char **buf, size_t *n ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_PK_H */ diff --git a/include/mbedtls/pk_internal.h b/include/mbedtls/pk_internal.h new file mode 100644 index 0000000..01d0f21 --- /dev/null +++ b/include/mbedtls/pk_internal.h @@ -0,0 +1,114 @@ +/** + * \file pk.h + * + * \brief Public Key abstraction layer: wrapper functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#ifndef MBEDTLS_PK_WRAP_H +#define MBEDTLS_PK_WRAP_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "pk.h" + +struct mbedtls_pk_info_t +{ + /** Public key type */ + mbedtls_pk_type_t type; + + /** Type name */ + const char *name; + + /** Get key size in bits */ + size_t (*get_bitlen)( const void * ); + + /** Tell if the context implements this type (e.g. ECKEY can do ECDSA) */ + int (*can_do)( mbedtls_pk_type_t type ); + + /** Verify signature */ + int (*verify_func)( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ); + + /** Make signature */ + int (*sign_func)( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + + /** Decrypt message */ + int (*decrypt_func)( void *ctx, const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + + /** Encrypt message */ + int (*encrypt_func)( void *ctx, const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + + /** Check public-private key pair */ + int (*check_pair_func)( const void *pub, const void *prv ); + + /** Allocate a new context */ + void * (*ctx_alloc_func)( void ); + + /** Free the given context */ + void (*ctx_free_func)( void *ctx ); + + /** Interface with the debug module */ + void (*debug_func)( const void *ctx, mbedtls_pk_debug_item *items ); + +}; +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/* Container for RSA-alt */ +typedef struct +{ + void *key; + mbedtls_pk_rsa_alt_decrypt_func decrypt_func; + mbedtls_pk_rsa_alt_sign_func sign_func; + mbedtls_pk_rsa_alt_key_len_func key_len_func; +} mbedtls_rsa_alt_context; +#endif + +#if defined(MBEDTLS_RSA_C) +extern const mbedtls_pk_info_t mbedtls_rsa_info; +#endif + +#if defined(MBEDTLS_ECP_C) +extern const mbedtls_pk_info_t mbedtls_eckey_info; +extern const mbedtls_pk_info_t mbedtls_eckeydh_info; +#endif + +#if defined(MBEDTLS_ECDSA_C) +extern const mbedtls_pk_info_t mbedtls_ecdsa_info; +#endif + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +extern const mbedtls_pk_info_t mbedtls_rsa_alt_info; +#endif + +#endif /* MBEDTLS_PK_WRAP_H */ diff --git a/include/mbedtls/pkcs11.h b/include/mbedtls/pkcs11.h new file mode 100644 index 0000000..2e88928 --- /dev/null +++ b/include/mbedtls/pkcs11.h @@ -0,0 +1,173 @@ +/** + * \file pkcs11.h + * + * \brief Wrapper for PKCS#11 library libpkcs11-helper + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_PKCS11_H +#define MBEDTLS_PKCS11_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PKCS11_C) + +#include "x509_crt.h" + +#include + +#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Context for PKCS #11 private keys. + */ +typedef struct { + pkcs11h_certificate_t pkcs11h_cert; + int len; +} mbedtls_pkcs11_context; + +/** + * Initialize a mbedtls_pkcs11_context. + * (Just making memory references valid.) + */ +void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx ); + +/** + * Fill in a mbed TLS certificate, based on the given PKCS11 helper certificate. + * + * \param cert X.509 certificate to fill + * \param pkcs11h_cert PKCS #11 helper certificate + * + * \return 0 on success. + */ +int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11h_cert ); + +/** + * Set up a mbedtls_pkcs11_context storing the given certificate. Note that the + * mbedtls_pkcs11_context will take over control of the certificate, freeing it when + * done. + * + * \param priv_key Private key structure to fill. + * \param pkcs11_cert PKCS #11 helper certificate + * + * \return 0 on success + */ +int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key, + pkcs11h_certificate_t pkcs11_cert ); + +/** + * Free the contents of the given private key context. Note that the structure + * itself is not freed. + * + * \param priv_key Private key structure to cleanup + */ +void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key ); + +/** + * \brief Do an RSA private key decrypt, then remove the message + * padding + * + * \param ctx PKCS #11 context + * \param mode must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature + * \param input buffer holding the encrypted data + * \param output buffer that will hold the plaintext + * \param olen will contain the plaintext length + * \param output_max_len maximum length of the output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise + * an error is thrown. + */ +int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ); + +/** + * \brief Do a private RSA to sign a message digest + * + * \param ctx PKCS #11 context + * \param mode must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer that will hold the ciphertext + * + * \return 0 if the signing operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ); + +/** + * SSL/TLS wrappers for PKCS#11 functions + */ +static inline int mbedtls_ssl_pkcs11_decrypt( void *ctx, int mode, size_t *olen, + const unsigned char *input, unsigned char *output, + size_t output_max_len ) +{ + return mbedtls_pkcs11_decrypt( (mbedtls_pkcs11_context *) ctx, mode, olen, input, output, + output_max_len ); +} + +static inline int mbedtls_ssl_pkcs11_sign( void *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, + int mode, mbedtls_md_type_t md_alg, unsigned int hashlen, + const unsigned char *hash, unsigned char *sig ) +{ + ((void) f_rng); + ((void) p_rng); + return mbedtls_pkcs11_sign( (mbedtls_pkcs11_context *) ctx, mode, md_alg, + hashlen, hash, sig ); +} + +static inline size_t mbedtls_ssl_pkcs11_key_len( void *ctx ) +{ + return ( (mbedtls_pkcs11_context *) ctx )->len; +} + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_PKCS11_C */ + +#endif /* MBEDTLS_PKCS11_H */ diff --git a/include/mbedtls/pkcs12.h b/include/mbedtls/pkcs12.h new file mode 100644 index 0000000..9b2d904 --- /dev/null +++ b/include/mbedtls/pkcs12.h @@ -0,0 +1,119 @@ +/** + * \file pkcs12.h + * + * \brief PKCS#12 Personal Information Exchange Syntax + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_PKCS12_H +#define MBEDTLS_PKCS12_H + +#include "md.h" +#include "cipher.h" +#include "asn1.h" + +#include + +#define MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA -0x1F80 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE -0x1F00 /**< Feature not available, e.g. unsupported encryption scheme. */ +#define MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT -0x1E80 /**< PBE ASN.1 data not as expected. */ +#define MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH -0x1E00 /**< Given private key password does not allow for correct decryption. */ + +#define MBEDTLS_PKCS12_DERIVE_KEY 1 /**< encryption/decryption key */ +#define MBEDTLS_PKCS12_DERIVE_IV 2 /**< initialization vector */ +#define MBEDTLS_PKCS12_DERIVE_MAC_KEY 3 /**< integrity / MAC key */ + +#define MBEDTLS_PKCS12_PBE_DECRYPT 0 +#define MBEDTLS_PKCS12_PBE_ENCRYPT 1 + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief PKCS12 Password Based function (encryption / decryption) + * for pbeWithSHAAnd128BitRC4 + * + * \param pbe_params an ASN1 buffer containing the pkcs-12PbeParams structure + * \param mode either MBEDTLS_PKCS12_PBE_ENCRYPT or MBEDTLS_PKCS12_PBE_DECRYPT + * \param pwd the password used (may be NULL if no password is used) + * \param pwdlen length of the password (may be 0) + * \param input the input data + * \param len data length + * \param output the output buffer + * + * \return 0 if successful, or a MBEDTLS_ERR_XXX code + */ +int mbedtls_pkcs12_pbe_sha1_rc4_128( mbedtls_asn1_buf *pbe_params, int mode, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *input, size_t len, + unsigned char *output ); + +/** + * \brief PKCS12 Password Based function (encryption / decryption) + * for cipher-based and mbedtls_md-based PBE's + * + * \param pbe_params an ASN1 buffer containing the pkcs-12PbeParams structure + * \param mode either MBEDTLS_PKCS12_PBE_ENCRYPT or MBEDTLS_PKCS12_PBE_DECRYPT + * \param cipher_type the cipher used + * \param md_type the mbedtls_md used + * \param pwd the password used (may be NULL if no password is used) + * \param pwdlen length of the password (may be 0) + * \param input the input data + * \param len data length + * \param output the output buffer + * + * \return 0 if successful, or a MBEDTLS_ERR_XXX code + */ +int mbedtls_pkcs12_pbe( mbedtls_asn1_buf *pbe_params, int mode, + mbedtls_cipher_type_t cipher_type, mbedtls_md_type_t md_type, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *input, size_t len, + unsigned char *output ); + +/** + * \brief The PKCS#12 derivation function uses a password and a salt + * to produce pseudo-random bits for a particular "purpose". + * + * Depending on the given id, this function can produce an + * encryption/decryption key, an nitialization vector or an + * integrity key. + * + * \param data buffer to store the derived data in + * \param datalen length to fill + * \param pwd password to use (may be NULL if no password is used) + * \param pwdlen length of the password (may be 0) + * \param salt salt buffer to use + * \param saltlen length of the salt + * \param mbedtls_md mbedtls_md type to use during the derivation + * \param id id that describes the purpose (can be MBEDTLS_PKCS12_DERIVE_KEY, + * MBEDTLS_PKCS12_DERIVE_IV or MBEDTLS_PKCS12_DERIVE_MAC_KEY) + * \param iterations number of iterations + * + * \return 0 if successful, or a MD, BIGNUM type error. + */ +int mbedtls_pkcs12_derivation( unsigned char *data, size_t datalen, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *salt, size_t saltlen, + mbedtls_md_type_t mbedtls_md, int id, int iterations ); + +#ifdef __cplusplus +} +#endif + +#endif /* pkcs12.h */ diff --git a/include/mbedtls/pkcs5.h b/include/mbedtls/pkcs5.h new file mode 100644 index 0000000..ec5cb9e --- /dev/null +++ b/include/mbedtls/pkcs5.h @@ -0,0 +1,94 @@ +/** + * \file pkcs5.h + * + * \brief PKCS#5 functions + * + * \author Mathias Olsson + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_PKCS5_H +#define MBEDTLS_PKCS5_H + +#include "asn1.h" +#include "md.h" + +#include +#include + +#define MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA -0x2f80 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_PKCS5_INVALID_FORMAT -0x2f00 /**< Unexpected ASN.1 data. */ +#define MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE -0x2e80 /**< Requested encryption or digest alg not available. */ +#define MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH -0x2e00 /**< Given private key password does not allow for correct decryption. */ + +#define MBEDTLS_PKCS5_DECRYPT 0 +#define MBEDTLS_PKCS5_ENCRYPT 1 + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief PKCS#5 PBES2 function + * + * \param pbe_params the ASN.1 algorithm parameters + * \param mode either MBEDTLS_PKCS5_DECRYPT or MBEDTLS_PKCS5_ENCRYPT + * \param pwd password to use when generating key + * \param pwdlen length of password + * \param data data to process + * \param datalen length of data + * \param output output buffer + * + * \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails. + */ +int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t datalen, + unsigned char *output ); + +/** + * \brief PKCS#5 PBKDF2 using HMAC + * + * \param ctx Generic HMAC context + * \param password Password to use when generating key + * \param plen Length of password + * \param salt Salt to use when generating key + * \param slen Length of salt + * \param iteration_count Iteration count + * \param key_length Length of generated key in bytes + * \param output Generated key. Must be at least as big as key_length + * + * \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails. + */ +int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, const unsigned char *password, + size_t plen, const unsigned char *salt, size_t slen, + unsigned int iteration_count, + uint32_t key_length, unsigned char *output ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_pkcs5_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* pkcs5.h */ diff --git a/include/mbedtls/platform.h b/include/mbedtls/platform.h new file mode 100644 index 0000000..b1b019e --- /dev/null +++ b/include/mbedtls/platform.h @@ -0,0 +1,295 @@ +/** + * \file platform.h + * + * \brief mbed TLS Platform abstraction layer + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_PLATFORM_H +#define MBEDTLS_PLATFORM_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) +#include +#include +#include +#if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF) +#if defined(_WIN32) +#define MBEDTLS_PLATFORM_STD_SNPRINTF mbedtls_platform_win32_snprintf /**< Default snprintf to use */ +#else +#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< Default snprintf to use */ +#endif +#endif +#if !defined(MBEDTLS_PLATFORM_STD_PRINTF) +#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_FPRINTF) +#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_CALLOC) +#define MBEDTLS_PLATFORM_STD_CALLOC calloc /**< Default allocator to use */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_FREE) +#define MBEDTLS_PLATFORM_STD_FREE free /**< Default free to use */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_EXIT) +#define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default exit to use */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_TIME) +#define MBEDTLS_PLATFORM_STD_TIME time /**< Default time to use */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS) +#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS EXIT_SUCCESS /**< Default exit value to use */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE) +#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE EXIT_FAILURE /**< Default exit value to use */ +#endif +#if defined(MBEDTLS_FS_IO) +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) +#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read +#endif +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) +#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write +#endif +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_FILE) +#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" +#endif +#endif /* MBEDTLS_FS_IO */ +#else /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */ +#if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) +#include MBEDTLS_PLATFORM_STD_MEM_HDR +#endif +#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */ + + +/* \} name SECTION: Module settings */ + +/* + * The function pointers for calloc and free + */ +#if defined(MBEDTLS_PLATFORM_MEMORY) +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) && \ + defined(MBEDTLS_PLATFORM_CALLOC_MACRO) +#define mbedtls_free MBEDTLS_PLATFORM_FREE_MACRO +#define mbedtls_calloc MBEDTLS_PLATFORM_CALLOC_MACRO +#else +/* For size_t */ +#include +extern void * (*mbedtls_calloc)( size_t n, size_t size ); +extern void (*mbedtls_free)( void *ptr ); + +/** + * \brief Set your own memory implementation function pointers + * + * \param calloc_func the calloc function implementation + * \param free_func the free function implementation + * + * \return 0 if successful + */ +int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ), + void (*free_func)( void * ) ); +#endif /* MBEDTLS_PLATFORM_FREE_MACRO && MBEDTLS_PLATFORM_CALLOC_MACRO */ +#else /* !MBEDTLS_PLATFORM_MEMORY */ +#define mbedtls_free free +#define mbedtls_calloc calloc +#endif /* MBEDTLS_PLATFORM_MEMORY && !MBEDTLS_PLATFORM_{FREE,CALLOC}_MACRO */ + +/* + * The function pointers for fprintf + */ +#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) +/* We need FILE * */ +#include +extern int (*mbedtls_fprintf)( FILE *stream, const char *format, ... ); + +/** + * \brief Set your own fprintf function pointer + * + * \param fprintf_func the fprintf function implementation + * + * \return 0 + */ +int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *stream, const char *, + ... ) ); +#else +#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) +#define mbedtls_fprintf MBEDTLS_PLATFORM_FPRINTF_MACRO +#else +#define mbedtls_fprintf fprintf +#endif /* MBEDTLS_PLATFORM_FPRINTF_MACRO */ +#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */ + +/* + * The function pointers for printf + */ +#if defined(MBEDTLS_PLATFORM_PRINTF_ALT) +extern int (*mbedtls_printf)( const char *format, ... ); + +/** + * \brief Set your own printf function pointer + * + * \param printf_func the printf function implementation + * + * \return 0 + */ +int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) ); +#else /* !MBEDTLS_PLATFORM_PRINTF_ALT */ +#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) +#define mbedtls_printf MBEDTLS_PLATFORM_PRINTF_MACRO +#else +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_PRINTF_MACRO */ +#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */ + +/* + * The function pointers for snprintf + * + * The snprintf implementation should conform to C99: + * - it *must* always correctly zero-terminate the buffer + * (except when n == 0, then it must leave the buffer untouched) + * - however it is acceptable to return -1 instead of the required length when + * the destination buffer is too short. + */ +#if defined(_WIN32) +/* For Windows (inc. MSYS2), we provide our own fixed implementation */ +int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... ); +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) +extern int (*mbedtls_snprintf)( char * s, size_t n, const char * format, ... ); + +/** + * \brief Set your own snprintf function pointer + * + * \param snprintf_func the snprintf function implementation + * + * \return 0 + */ +int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n, + const char * format, ... ) ); +#else /* MBEDTLS_PLATFORM_SNPRINTF_ALT */ +#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) +#define mbedtls_snprintf MBEDTLS_PLATFORM_SNPRINTF_MACRO +#else +#define mbedtls_snprintf snprintf +#endif /* MBEDTLS_PLATFORM_SNPRINTF_MACRO */ +#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */ + +/* + * The function pointers for exit + */ +#if defined(MBEDTLS_PLATFORM_EXIT_ALT) +extern void (*mbedtls_exit)( int status ); + +/** + * \brief Set your own exit function pointer + * + * \param exit_func the exit function implementation + * + * \return 0 + */ +int mbedtls_platform_set_exit( void (*exit_func)( int status ) ); +#else +#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) +#define mbedtls_exit MBEDTLS_PLATFORM_EXIT_MACRO +#else +#define mbedtls_exit exit +#endif /* MBEDTLS_PLATFORM_EXIT_MACRO */ +#endif /* MBEDTLS_PLATFORM_EXIT_ALT */ + +/* + * The default exit values + */ +#if defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS) +#define MBEDTLS_EXIT_SUCCESS MBEDTLS_PLATFORM_STD_EXIT_SUCCESS +#else +#define MBEDTLS_EXIT_SUCCESS 0 +#endif +#if defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE) +#define MBEDTLS_EXIT_FAILURE MBEDTLS_PLATFORM_STD_EXIT_FAILURE +#else +#define MBEDTLS_EXIT_FAILURE 1 +#endif + +/* + * The function pointers for reading from and writing a seed file to + * Non-Volatile storage (NV) in a platform-independent way + * + * Only enabled when the NV seed entropy source is enabled + */ +#if defined(MBEDTLS_ENTROPY_NV_SEED) +#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) && defined(MBEDTLS_FS_IO) +/* Internal standard platform definitions */ +int mbedtls_platform_std_nv_seed_read( unsigned char *buf, size_t buf_len ); +int mbedtls_platform_std_nv_seed_write( unsigned char *buf, size_t buf_len ); +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) +extern int (*mbedtls_nv_seed_read)( unsigned char *buf, size_t buf_len ); +extern int (*mbedtls_nv_seed_write)( unsigned char *buf, size_t buf_len ); + +/** + * \brief Set your own seed file writing/reading functions + * + * \param nv_seed_read_func the seed reading function implementation + * \param nv_seed_write_func the seed writing function implementation + * + * \return 0 + */ +int mbedtls_platform_set_nv_seed( + int (*nv_seed_read_func)( unsigned char *buf, size_t buf_len ), + int (*nv_seed_write_func)( unsigned char *buf, size_t buf_len ) + ); +#else +#if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) && \ + defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO) +#define mbedtls_nv_seed_read MBEDTLS_PLATFORM_NV_SEED_READ_MACRO +#define mbedtls_nv_seed_write MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO +#else +#define mbedtls_nv_seed_read mbedtls_platform_std_nv_seed_read +#define mbedtls_nv_seed_write mbedtls_platform_std_nv_seed_write +#endif +#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */ +#endif /* MBEDTLS_ENTROPY_NV_SEED */ + +#ifdef __cplusplus +} +#endif + +#endif /* platform.h */ diff --git a/include/mbedtls/platform_time.h b/include/mbedtls/platform_time.h new file mode 100644 index 0000000..abb3431 --- /dev/null +++ b/include/mbedtls/platform_time.h @@ -0,0 +1,81 @@ +/** + * \file platform_time.h + * + * \brief mbed TLS Platform time abstraction + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_PLATFORM_TIME_H +#define MBEDTLS_PLATFORM_TIME_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +/* + * The time_t datatype + */ +#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) +typedef MBEDTLS_PLATFORM_TIME_TYPE_MACRO mbedtls_time_t; +#else +/* For time_t */ +#include +typedef time_t mbedtls_time_t; +#endif /* MBEDTLS_PLATFORM_TIME_TYPE_MACRO */ + +/* + * The function pointers for time + */ +#if defined(MBEDTLS_PLATFORM_TIME_ALT) +extern mbedtls_time_t (*mbedtls_time)( mbedtls_time_t* time ); + +/** + * \brief Set your own time function pointer + * + * \param time_func the time function implementation + * + * \return 0 + */ +int mbedtls_platform_set_time( mbedtls_time_t (*time_func)( mbedtls_time_t* time ) ); +#else +#if defined(MBEDTLS_PLATFORM_TIME_MACRO) +#define mbedtls_time MBEDTLS_PLATFORM_TIME_MACRO +#else +#define mbedtls_time time +#endif /* MBEDTLS_PLATFORM_TIME_MACRO */ +#endif /* MBEDTLS_PLATFORM_TIME_ALT */ + +#ifdef __cplusplus +} +#endif + +#endif /* platform_time.h */ diff --git a/include/mbedtls/ripemd160.h b/include/mbedtls/ripemd160.h new file mode 100644 index 0000000..7083fc8 --- /dev/null +++ b/include/mbedtls/ripemd160.h @@ -0,0 +1,138 @@ +/** + * \file ripemd160.h + * + * \brief RIPE MD-160 message digest + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_RIPEMD160_H +#define MBEDTLS_RIPEMD160_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#if !defined(MBEDTLS_RIPEMD160_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief RIPEMD-160 context structure + */ +typedef struct +{ + uint32_t total[2]; /*!< number of bytes processed */ + uint32_t state[5]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +mbedtls_ripemd160_context; + +/** + * \brief Initialize RIPEMD-160 context + * + * \param ctx RIPEMD-160 context to be initialized + */ +void mbedtls_ripemd160_init( mbedtls_ripemd160_context *ctx ); + +/** + * \brief Clear RIPEMD-160 context + * + * \param ctx RIPEMD-160 context to be cleared + */ +void mbedtls_ripemd160_free( mbedtls_ripemd160_context *ctx ); + +/** + * \brief Clone (the state of) an RIPEMD-160 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_ripemd160_clone( mbedtls_ripemd160_context *dst, + const mbedtls_ripemd160_context *src ); + +/** + * \brief RIPEMD-160 context setup + * + * \param ctx context to be initialized + */ +void mbedtls_ripemd160_starts( mbedtls_ripemd160_context *ctx ); + +/** + * \brief RIPEMD-160 process buffer + * + * \param ctx RIPEMD-160 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void mbedtls_ripemd160_update( mbedtls_ripemd160_context *ctx, + const unsigned char *input, size_t ilen ); + +/** + * \brief RIPEMD-160 final digest + * + * \param ctx RIPEMD-160 context + * \param output RIPEMD-160 checksum result + */ +void mbedtls_ripemd160_finish( mbedtls_ripemd160_context *ctx, unsigned char output[20] ); + +/* Internal use */ +void mbedtls_ripemd160_process( mbedtls_ripemd160_context *ctx, const unsigned char data[64] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_RIPEMD160_ALT */ +#include "ripemd160.h" +#endif /* MBEDTLS_RIPEMD160_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Output = RIPEMD-160( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output RIPEMD-160 checksum result + */ +void mbedtls_ripemd160( const unsigned char *input, size_t ilen, + unsigned char output[20] ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_ripemd160_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_ripemd160.h */ diff --git a/include/mbedtls/rsa.h b/include/mbedtls/rsa.h new file mode 100644 index 0000000..35185df --- /dev/null +++ b/include/mbedtls/rsa.h @@ -0,0 +1,652 @@ +/** + * \file rsa.h + * + * \brief The RSA public-key cryptosystem + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_RSA_H +#define MBEDTLS_RSA_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "bignum.h" +#include "md.h" + +#if defined(MBEDTLS_THREADING_C) +#include "threading.h" +#endif + +/* + * RSA Error codes + */ +#define MBEDTLS_ERR_RSA_BAD_INPUT_DATA -0x4080 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_RSA_INVALID_PADDING -0x4100 /**< Input data contains invalid padding and is rejected. */ +#define MBEDTLS_ERR_RSA_KEY_GEN_FAILED -0x4180 /**< Something failed during generation of a key. */ +#define MBEDTLS_ERR_RSA_KEY_CHECK_FAILED -0x4200 /**< Key failed to pass the library's validity check. */ +#define MBEDTLS_ERR_RSA_PUBLIC_FAILED -0x4280 /**< The public key operation failed. */ +#define MBEDTLS_ERR_RSA_PRIVATE_FAILED -0x4300 /**< The private key operation failed. */ +#define MBEDTLS_ERR_RSA_VERIFY_FAILED -0x4380 /**< The PKCS#1 verification failed. */ +#define MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE -0x4400 /**< The output buffer for decryption is not large enough. */ +#define MBEDTLS_ERR_RSA_RNG_FAILED -0x4480 /**< The random generator failed to generate non-zeros. */ + +/* + * RSA constants + */ +#define MBEDTLS_RSA_PUBLIC 0 +#define MBEDTLS_RSA_PRIVATE 1 + +#define MBEDTLS_RSA_PKCS_V15 0 +#define MBEDTLS_RSA_PKCS_V21 1 + +#define MBEDTLS_RSA_SIGN 1 +#define MBEDTLS_RSA_CRYPT 2 + +#define MBEDTLS_RSA_SALT_LEN_ANY -1 + +/* + * The above constants may be used even if the RSA module is compile out, + * eg for alternative (PKCS#11) RSA implemenations in the PK layers. + */ +#if defined(MBEDTLS_RSA_C) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief RSA context structure + */ +typedef struct +{ + int ver; /*!< always 0 */ + size_t len; /*!< size(N) in chars */ + + mbedtls_mpi N; /*!< public modulus */ + mbedtls_mpi E; /*!< public exponent */ + + mbedtls_mpi D; /*!< private exponent */ + mbedtls_mpi P; /*!< 1st prime factor */ + mbedtls_mpi Q; /*!< 2nd prime factor */ + mbedtls_mpi DP; /*!< D % (P - 1) */ + mbedtls_mpi DQ; /*!< D % (Q - 1) */ + mbedtls_mpi QP; /*!< 1 / (Q % P) */ + + mbedtls_mpi RN; /*!< cached R^2 mod N */ + mbedtls_mpi RP; /*!< cached R^2 mod P */ + mbedtls_mpi RQ; /*!< cached R^2 mod Q */ + + mbedtls_mpi Vi; /*!< cached blinding value */ + mbedtls_mpi Vf; /*!< cached un-blinding value */ + + int padding; /*!< MBEDTLS_RSA_PKCS_V15 for 1.5 padding and + MBEDTLS_RSA_PKCS_v21 for OAEP/PSS */ + int hash_id; /*!< Hash identifier of mbedtls_md_type_t as + specified in the mbedtls_md.h header file + for the EME-OAEP and EMSA-PSS + encoding */ +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; /*!< Thread-safety mutex */ +#endif +} +mbedtls_rsa_context; + +/** + * \brief Initialize an RSA context + * + * Note: Set padding to MBEDTLS_RSA_PKCS_V21 for the RSAES-OAEP + * encryption scheme and the RSASSA-PSS signature scheme. + * + * \param ctx RSA context to be initialized + * \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21 + * \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier + * + * \note The hash_id parameter is actually ignored + * when using MBEDTLS_RSA_PKCS_V15 padding. + * + * \note Choice of padding mode is strictly enforced for private key + * operations, since there might be security concerns in + * mixing padding modes. For public key operations it's merely + * a default value, which can be overriden by calling specific + * rsa_rsaes_xxx or rsa_rsassa_xxx functions. + * + * \note The chosen hash is always used for OEAP encryption. + * For PSS signatures, it's always used for making signatures, + * but can be overriden (and always is, if set to + * MBEDTLS_MD_NONE) for verifying them. + */ +void mbedtls_rsa_init( mbedtls_rsa_context *ctx, + int padding, + int hash_id); + +/** + * \brief Set padding for an already initialized RSA context + * See \c mbedtls_rsa_init() for details. + * + * \param ctx RSA context to be set + * \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21 + * \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier + */ +void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding, int hash_id); + +/** + * \brief Generate an RSA keypair + * + * \param ctx RSA context that will hold the key + * \param f_rng RNG function + * \param p_rng RNG parameter + * \param nbits size of the public key in bits + * \param exponent public exponent (e.g., 65537) + * + * \note mbedtls_rsa_init() must be called beforehand to setup + * the RSA context. + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ +int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + unsigned int nbits, int exponent ); + +/** + * \brief Check a public RSA key + * + * \param ctx RSA context to be checked + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ +int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx ); + +/** + * \brief Check a private RSA key + * + * \param ctx RSA context to be checked + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ +int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx ); + +/** + * \brief Check a public-private RSA key pair. + * Check each of the contexts, and make sure they match. + * + * \param pub RSA context holding the public key + * \param prv RSA context holding the private key + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + */ +int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv ); + +/** + * \brief Do an RSA public key operation + * + * \param ctx RSA context + * \param input input buffer + * \param output output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note This function does NOT take care of message + * padding. Also, be sure to set input[0] = 0 or assure that + * input is smaller than N. + * + * \note The input and output buffers must be large + * enough (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_rsa_public( mbedtls_rsa_context *ctx, + const unsigned char *input, + unsigned char *output ); + +/** + * \brief Do an RSA private key operation + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for blinding) + * \param p_rng RNG parameter + * \param input input buffer + * \param output output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The input and output buffers must be large + * enough (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_rsa_private( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + const unsigned char *input, + unsigned char *output ); + +/** + * \brief Generic wrapper to perform a PKCS#1 encryption using the + * mode from the context. Add the message padding, then do an + * RSA operation. + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding + * and MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param ilen contains the plaintext length + * \param input buffer holding the data to be encrypted + * \param output buffer that will hold the ciphertext + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ); + +/** + * \brief Perform a PKCS#1 v1.5 encryption (RSAES-PKCS1-v1_5-ENCRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for padding and MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param ilen contains the plaintext length + * \param input buffer holding the data to be encrypted + * \param output buffer that will hold the ciphertext + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ); + +/** + * \brief Perform a PKCS#1 v2.1 OAEP encryption (RSAES-OAEP-ENCRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding + * and MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param label buffer holding the custom label to use + * \param label_len contains the label length + * \param ilen contains the plaintext length + * \param input buffer holding the data to be encrypted + * \param output buffer that will hold the ciphertext + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t ilen, + const unsigned char *input, + unsigned char *output ); + +/** + * \brief Generic wrapper to perform a PKCS#1 decryption using the + * mode from the context. Do an RSA operation, then remove + * the message padding + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param olen will contain the plaintext length + * \param input buffer holding the encrypted data + * \param output buffer that will hold the plaintext + * \param output_max_len maximum length of the output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise + * an error is thrown. + */ +int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ); + +/** + * \brief Perform a PKCS#1 v1.5 decryption (RSAES-PKCS1-v1_5-DECRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param olen will contain the plaintext length + * \param input buffer holding the encrypted data + * \param output buffer that will hold the plaintext + * \param output_max_len maximum length of the output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise + * an error is thrown. + */ +int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ); + +/** + * \brief Perform a PKCS#1 v2.1 OAEP decryption (RSAES-OAEP-DECRYPT) + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param label buffer holding the custom label to use + * \param label_len contains the label length + * \param olen will contain the plaintext length + * \param input buffer holding the encrypted data + * \param output buffer that will hold the plaintext + * \param output_max_len maximum length of the output buffer + * + * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The output buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise + * an error is thrown. + */ +int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ); + +/** + * \brief Generic wrapper to perform a PKCS#1 signature using the + * mode from the context. Do a private RSA operation to sign + * a message digest + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and for + * MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer that will hold the ciphertext + * + * \return 0 if the signing operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note In case of PKCS#1 v2.1 encoding, see comments on + * \note \c mbedtls_rsa_rsassa_pss_sign() for details on md_alg and hash_id. + */ +int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ); + +/** + * \brief Perform a PKCS#1 v1.5 signature (RSASSA-PKCS1-v1_5-SIGN) + * + * \param ctx RSA context + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer that will hold the ciphertext + * + * \return 0 if the signing operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ); + +/** + * \brief Perform a PKCS#1 v2.1 PSS signature (RSASSA-PSS-SIGN) + * + * \param ctx RSA context + * \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and for + * MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer that will hold the ciphertext + * + * \return 0 if the signing operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note The hash_id in the RSA context is the one used for the + * encoding. md_alg in the function call is the type of hash + * that is encoded. According to RFC 3447 it is advised to + * keep both hashes the same. + */ +int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ); + +/** + * \brief Generic wrapper to perform a PKCS#1 verification using the + * mode from the context. Do a public RSA operation and check + * the message digest + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note In case of PKCS#1 v2.1 encoding, see comments on + * \c mbedtls_rsa_rsassa_pss_verify() about md_alg and hash_id. + */ +int mbedtls_rsa_pkcs1_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ); + +/** + * \brief Perform a PKCS#1 v1.5 verification (RSASSA-PKCS1-v1_5-VERIFY) + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + */ +int mbedtls_rsa_rsassa_pkcs1_v15_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ); + +/** + * \brief Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY) + * (This is the "simple" version.) + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note The hash_id in the RSA context is the one used for the + * verification. md_alg in the function call is the type of + * hash that is verified. According to RFC 3447 it is advised to + * keep both hashes the same. If hash_id in the RSA context is + * unset, the md_alg from the function call is used. + */ +int mbedtls_rsa_rsassa_pss_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ); + +/** + * \brief Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY) + * (This is the version with "full" options.) + * + * \param ctx points to an RSA public key + * \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE) + * \param p_rng RNG parameter + * \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE + * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) + * \param hashlen message digest length (for MBEDTLS_MD_NONE only) + * \param hash buffer holding the message digest + * \param mgf1_hash_id message digest used for mask generation + * \param expected_salt_len Length of the salt used in padding, use + * MBEDTLS_RSA_SALT_LEN_ANY to accept any salt length + * \param sig buffer holding the ciphertext + * + * \return 0 if the verify operation was successful, + * or an MBEDTLS_ERR_RSA_XXX error code + * + * \note The "sig" buffer must be as large as the size + * of ctx->N (eg. 128 bytes if RSA-1024 is used). + * + * \note The hash_id in the RSA context is ignored. + */ +int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + mbedtls_md_type_t mgf1_hash_id, + int expected_salt_len, + const unsigned char *sig ); + +/** + * \brief Copy the components of an RSA context + * + * \param dst Destination context + * \param src Source context + * + * \return 0 on success, + * MBEDTLS_ERR_MPI_ALLOC_FAILED on memory allocation failure + */ +int mbedtls_rsa_copy( mbedtls_rsa_context *dst, const mbedtls_rsa_context *src ); + +/** + * \brief Free the components of an RSA key + * + * \param ctx RSA Context to free + */ +void mbedtls_rsa_free( mbedtls_rsa_context *ctx ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_rsa_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_RSA_C */ + +#endif /* rsa.h */ diff --git a/include/mbedtls/sha1.h b/include/mbedtls/sha1.h new file mode 100644 index 0000000..7a67c6c --- /dev/null +++ b/include/mbedtls/sha1.h @@ -0,0 +1,136 @@ +/** + * \file sha1.h + * + * \brief SHA-1 cryptographic hash function + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SHA1_H +#define MBEDTLS_SHA1_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#if !defined(MBEDTLS_SHA1_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief SHA-1 context structure + */ +typedef struct +{ + uint32_t total[2]; /*!< number of bytes processed */ + uint32_t state[5]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +mbedtls_sha1_context; + +/** + * \brief Initialize SHA-1 context + * + * \param ctx SHA-1 context to be initialized + */ +void mbedtls_sha1_init( mbedtls_sha1_context *ctx ); + +/** + * \brief Clear SHA-1 context + * + * \param ctx SHA-1 context to be cleared + */ +void mbedtls_sha1_free( mbedtls_sha1_context *ctx ); + +/** + * \brief Clone (the state of) a SHA-1 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_sha1_clone( mbedtls_sha1_context *dst, + const mbedtls_sha1_context *src ); + +/** + * \brief SHA-1 context setup + * + * \param ctx context to be initialized + */ +void mbedtls_sha1_starts( mbedtls_sha1_context *ctx ); + +/** + * \brief SHA-1 process buffer + * + * \param ctx SHA-1 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void mbedtls_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen ); + +/** + * \brief SHA-1 final digest + * + * \param ctx SHA-1 context + * \param output SHA-1 checksum result + */ +void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[20] ); + +/* Internal use */ +void mbedtls_sha1_process( mbedtls_sha1_context *ctx, const unsigned char data[64] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_SHA1_ALT */ +#include "sha1_alt.h" +#endif /* MBEDTLS_SHA1_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Output = SHA-1( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output SHA-1 checksum result + */ +void mbedtls_sha1( const unsigned char *input, size_t ilen, unsigned char output[20] ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_sha1_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_sha1.h */ diff --git a/include/mbedtls/sha256.h b/include/mbedtls/sha256.h new file mode 100644 index 0000000..f8041ad --- /dev/null +++ b/include/mbedtls/sha256.h @@ -0,0 +1,141 @@ +/** + * \file sha256.h + * + * \brief SHA-224 and SHA-256 cryptographic hash function + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SHA256_H +#define MBEDTLS_SHA256_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#if !defined(MBEDTLS_SHA256_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief SHA-256 context structure + */ +typedef struct +{ + uint32_t total[2]; /*!< number of bytes processed */ + uint32_t state[8]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ + int is224; /*!< 0 => SHA-256, else SHA-224 */ +} +mbedtls_sha256_context; + +/** + * \brief Initialize SHA-256 context + * + * \param ctx SHA-256 context to be initialized + */ +void mbedtls_sha256_init( mbedtls_sha256_context *ctx ); + +/** + * \brief Clear SHA-256 context + * + * \param ctx SHA-256 context to be cleared + */ +void mbedtls_sha256_free( mbedtls_sha256_context *ctx ); + +/** + * \brief Clone (the state of) a SHA-256 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_sha256_clone( mbedtls_sha256_context *dst, + const mbedtls_sha256_context *src ); + +/** + * \brief SHA-256 context setup + * + * \param ctx context to be initialized + * \param is224 0 = use SHA256, 1 = use SHA224 + */ +void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 ); + +/** + * \brief SHA-256 process buffer + * + * \param ctx SHA-256 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input, + size_t ilen ); + +/** + * \brief SHA-256 final digest + * + * \param ctx SHA-256 context + * \param output SHA-224/256 checksum result + */ +void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] ); + +/* Internal use */ +void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_SHA256_ALT */ +#include "sha256_alt.h" +#endif /* MBEDTLS_SHA256_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Output = SHA-256( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output SHA-224/256 checksum result + * \param is224 0 = use SHA256, 1 = use SHA224 + */ +void mbedtls_sha256( const unsigned char *input, size_t ilen, + unsigned char output[32], int is224 ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_sha256_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_sha256.h */ diff --git a/include/mbedtls/sha512.h b/include/mbedtls/sha512.h new file mode 100644 index 0000000..627694f --- /dev/null +++ b/include/mbedtls/sha512.h @@ -0,0 +1,141 @@ +/** + * \file sha512.h + * + * \brief SHA-384 and SHA-512 cryptographic hash function + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SHA512_H +#define MBEDTLS_SHA512_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#if !defined(MBEDTLS_SHA512_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief SHA-512 context structure + */ +typedef struct +{ + uint64_t total[2]; /*!< number of bytes processed */ + uint64_t state[8]; /*!< intermediate digest state */ + unsigned char buffer[128]; /*!< data block being processed */ + int is384; /*!< 0 => SHA-512, else SHA-384 */ +} +mbedtls_sha512_context; + +/** + * \brief Initialize SHA-512 context + * + * \param ctx SHA-512 context to be initialized + */ +void mbedtls_sha512_init( mbedtls_sha512_context *ctx ); + +/** + * \brief Clear SHA-512 context + * + * \param ctx SHA-512 context to be cleared + */ +void mbedtls_sha512_free( mbedtls_sha512_context *ctx ); + +/** + * \brief Clone (the state of) a SHA-512 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_sha512_clone( mbedtls_sha512_context *dst, + const mbedtls_sha512_context *src ); + +/** + * \brief SHA-512 context setup + * + * \param ctx context to be initialized + * \param is384 0 = use SHA512, 1 = use SHA384 + */ +void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 ); + +/** + * \brief SHA-512 process buffer + * + * \param ctx SHA-512 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input, + size_t ilen ); + +/** + * \brief SHA-512 final digest + * + * \param ctx SHA-512 context + * \param output SHA-384/512 checksum result + */ +void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char output[64] ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_SHA512_ALT */ +#include "sha512_alt.h" +#endif /* MBEDTLS_SHA512_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Output = SHA-512( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output SHA-384/512 checksum result + * \param is384 0 = use SHA512, 1 = use SHA384 + */ +void mbedtls_sha512( const unsigned char *input, size_t ilen, + unsigned char output[64], int is384 ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_sha512_self_test( int verbose ); + +/* Internal use */ +void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[128] ); + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_sha512.h */ diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h new file mode 100644 index 0000000..ba499d2 --- /dev/null +++ b/include/mbedtls/ssl.h @@ -0,0 +1,2552 @@ +/** + * \file ssl.h + * + * \brief SSL/TLS functions. + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SSL_H +#define MBEDTLS_SSL_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "bignum.h" +#include "ecp.h" + +#include "ssl_ciphersuites.h" + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +#include "x509_crt.h" +#include "x509_crl.h" +#endif + +#if defined(MBEDTLS_DHM_C) +#include "dhm.h" +#endif + +#if defined(MBEDTLS_ECDH_C) +#include "ecdh.h" +#endif + +#if defined(MBEDTLS_ZLIB_SUPPORT) +#include "zlib.h" +#endif + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +/* + * SSL Error codes + */ +#define MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE -0x7080 /**< The requested feature is not available. */ +#define MBEDTLS_ERR_SSL_BAD_INPUT_DATA -0x7100 /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_SSL_INVALID_MAC -0x7180 /**< Verification of the message MAC failed. */ +#define MBEDTLS_ERR_SSL_INVALID_RECORD -0x7200 /**< An invalid SSL record was received. */ +#define MBEDTLS_ERR_SSL_CONN_EOF -0x7280 /**< The connection indicated an EOF. */ +#define MBEDTLS_ERR_SSL_UNKNOWN_CIPHER -0x7300 /**< An unknown cipher was received. */ +#define MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN -0x7380 /**< The server has no ciphersuites in common with the client. */ +#define MBEDTLS_ERR_SSL_NO_RNG -0x7400 /**< No RNG was provided to the SSL module. */ +#define MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE -0x7480 /**< No client certification received from the client, but required by the authentication mode. */ +#define MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE -0x7500 /**< Our own certificate(s) is/are too large to send in an SSL message. */ +#define MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED -0x7580 /**< The own certificate is not set, but needed by the server. */ +#define MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED -0x7600 /**< The own private key or pre-shared key is not set, but needed. */ +#define MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED -0x7680 /**< No CA Chain is set, but required to operate. */ +#define MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE -0x7700 /**< An unexpected message was received from our peer. */ +#define MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE -0x7780 /**< A fatal alert message was received from our peer. */ +#define MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED -0x7800 /**< Verification of our peer failed. */ +#define MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY -0x7880 /**< The peer notified us that the connection is going to be closed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO -0x7900 /**< Processing of the ClientHello handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO -0x7980 /**< Processing of the ServerHello handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE -0x7A00 /**< Processing of the Certificate handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST -0x7A80 /**< Processing of the CertificateRequest handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE -0x7B00 /**< Processing of the ServerKeyExchange handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE -0x7B80 /**< Processing of the ServerHelloDone handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE -0x7C00 /**< Processing of the ClientKeyExchange handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP -0x7C80 /**< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS -0x7D00 /**< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY -0x7D80 /**< Processing of the CertificateVerify handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC -0x7E00 /**< Processing of the ChangeCipherSpec handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_HS_FINISHED -0x7E80 /**< Processing of the Finished handshake message failed. */ +#define MBEDTLS_ERR_SSL_ALLOC_FAILED -0x7F00 /**< Memory allocation failed */ +#define MBEDTLS_ERR_SSL_HW_ACCEL_FAILED -0x7F80 /**< Hardware acceleration function returned with error */ +#define MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH -0x6F80 /**< Hardware acceleration function skipped / left alone data */ +#define MBEDTLS_ERR_SSL_COMPRESSION_FAILED -0x6F00 /**< Processing of the compression / decompression failed */ +#define MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION -0x6E80 /**< Handshake protocol not within min/max boundaries */ +#define MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET -0x6E00 /**< Processing of the NewSessionTicket handshake message failed. */ +#define MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED -0x6D80 /**< Session ticket has expired. */ +#define MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH -0x6D00 /**< Public key type mismatch (eg, asked for RSA key exchange and presented EC key) */ +#define MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY -0x6C80 /**< Unknown identity received (eg, PSK identity) */ +#define MBEDTLS_ERR_SSL_INTERNAL_ERROR -0x6C00 /**< Internal error (eg, unexpected failure in lower-level module) */ +#define MBEDTLS_ERR_SSL_COUNTER_WRAPPING -0x6B80 /**< A counter would wrap (eg, too many messages exchanged). */ +#define MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO -0x6B00 /**< Unexpected message at ServerHello in renegotiation. */ +#define MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED -0x6A80 /**< DTLS client must retry for hello verification */ +#define MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL -0x6A00 /**< A buffer is too small to receive or write a message */ +#define MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE -0x6980 /**< None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages). */ +#define MBEDTLS_ERR_SSL_WANT_READ -0x6900 /**< Connection requires a read call. */ +#define MBEDTLS_ERR_SSL_WANT_WRITE -0x6880 /**< Connection requires a write call. */ +#define MBEDTLS_ERR_SSL_TIMEOUT -0x6800 /**< The operation timed out. */ +#define MBEDTLS_ERR_SSL_CLIENT_RECONNECT -0x6780 /**< The client initiated a reconnect from the same port. */ +#define MBEDTLS_ERR_SSL_UNEXPECTED_RECORD -0x6700 /**< Record header looks valid but is not expected. */ +#define MBEDTLS_ERR_SSL_NON_FATAL -0x6680 /**< The alert message received indicates a non-fatal error. */ +#define MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH -0x6600 /**< Couldn't set the hash for verifying CertificateVerify */ + +/* + * Various constants + */ +#define MBEDTLS_SSL_MAJOR_VERSION_3 3 +#define MBEDTLS_SSL_MINOR_VERSION_0 0 /*!< SSL v3.0 */ +#define MBEDTLS_SSL_MINOR_VERSION_1 1 /*!< TLS v1.0 */ +#define MBEDTLS_SSL_MINOR_VERSION_2 2 /*!< TLS v1.1 */ +#define MBEDTLS_SSL_MINOR_VERSION_3 3 /*!< TLS v1.2 */ + +#define MBEDTLS_SSL_TRANSPORT_STREAM 0 /*!< TLS */ +#define MBEDTLS_SSL_TRANSPORT_DATAGRAM 1 /*!< DTLS */ + +#define MBEDTLS_SSL_MAX_HOST_NAME_LEN 255 /*!< Maximum host name defined in RFC 1035 */ + +/* RFC 6066 section 4, see also mfl_code_to_length in ssl_tls.c + * NONE must be zero so that memset()ing structure to zero works */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_NONE 0 /*!< don't use this extension */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_512 1 /*!< MaxFragmentLength 2^9 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_1024 2 /*!< MaxFragmentLength 2^10 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_2048 3 /*!< MaxFragmentLength 2^11 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_4096 4 /*!< MaxFragmentLength 2^12 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_INVALID 5 /*!< first invalid value */ + +#define MBEDTLS_SSL_IS_CLIENT 0 +#define MBEDTLS_SSL_IS_SERVER 1 + +#define MBEDTLS_SSL_IS_NOT_FALLBACK 0 +#define MBEDTLS_SSL_IS_FALLBACK 1 + +#define MBEDTLS_SSL_EXTENDED_MS_DISABLED 0 +#define MBEDTLS_SSL_EXTENDED_MS_ENABLED 1 + +#define MBEDTLS_SSL_ETM_DISABLED 0 +#define MBEDTLS_SSL_ETM_ENABLED 1 + +#define MBEDTLS_SSL_COMPRESS_NULL 0 +#define MBEDTLS_SSL_COMPRESS_DEFLATE 1 + +#define MBEDTLS_SSL_VERIFY_NONE 0 +#define MBEDTLS_SSL_VERIFY_OPTIONAL 1 +#define MBEDTLS_SSL_VERIFY_REQUIRED 2 +#define MBEDTLS_SSL_VERIFY_UNSET 3 /* Used only for sni_authmode */ + +#define MBEDTLS_SSL_LEGACY_RENEGOTIATION 0 +#define MBEDTLS_SSL_SECURE_RENEGOTIATION 1 + +#define MBEDTLS_SSL_RENEGOTIATION_DISABLED 0 +#define MBEDTLS_SSL_RENEGOTIATION_ENABLED 1 + +#define MBEDTLS_SSL_ANTI_REPLAY_DISABLED 0 +#define MBEDTLS_SSL_ANTI_REPLAY_ENABLED 1 + +#define MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED -1 +#define MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT 16 + +#define MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION 0 +#define MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION 1 +#define MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE 2 + +#define MBEDTLS_SSL_TRUNC_HMAC_DISABLED 0 +#define MBEDTLS_SSL_TRUNC_HMAC_ENABLED 1 +#define MBEDTLS_SSL_TRUNCATED_HMAC_LEN 10 /* 80 bits, rfc 6066 section 7 */ + +#define MBEDTLS_SSL_SESSION_TICKETS_DISABLED 0 +#define MBEDTLS_SSL_SESSION_TICKETS_ENABLED 1 + +#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED 0 +#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED 1 + +#define MBEDTLS_SSL_ARC4_ENABLED 0 +#define MBEDTLS_SSL_ARC4_DISABLED 1 + +#define MBEDTLS_SSL_PRESET_DEFAULT 0 +#define MBEDTLS_SSL_PRESET_SUITEB 2 + +/* + * Default range for DTLS retransmission timer value, in milliseconds. + * RFC 6347 4.2.4.1 says from 1 second to 60 seconds. + */ +#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN 1000 +#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX 60000 + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME) +#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME 86400 /**< Lifetime of session tickets (if enabled) */ +#endif + +/* + * Maxium fragment length in bytes, + * determines the size of each of the two internal I/O buffers. + * + * Note: the RFC defines the default size of SSL / TLS messages. If you + * change the value here, other clients / servers may not be able to + * communicate with you anymore. Only change this value if you control + * both sides of the connection and have it reduced at both sides, or + * if you're using the Max Fragment Length extension and you know all your + * peers are using it too! + */ +#if !defined(MBEDTLS_SSL_MAX_CONTENT_LEN) +#define MBEDTLS_SSL_MAX_CONTENT_LEN 16384 /**< Size of the input / output buffer */ +#endif + +/* \} name SECTION: Module settings */ + +/* + * Length of the verify data for secure renegotiation + */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) +#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 36 +#else +#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 12 +#endif + +/* + * Signaling ciphersuite values (SCSV) + */ +#define MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO 0xFF /**< renegotiation info ext */ +#define MBEDTLS_SSL_FALLBACK_SCSV_VALUE 0x5600 /**< RFC 7507 section 2 */ + +/* + * Supported Signature and Hash algorithms (For TLS 1.2) + * RFC 5246 section 7.4.1.4.1 + */ +#define MBEDTLS_SSL_HASH_NONE 0 +#define MBEDTLS_SSL_HASH_MD5 1 +#define MBEDTLS_SSL_HASH_SHA1 2 +#define MBEDTLS_SSL_HASH_SHA224 3 +#define MBEDTLS_SSL_HASH_SHA256 4 +#define MBEDTLS_SSL_HASH_SHA384 5 +#define MBEDTLS_SSL_HASH_SHA512 6 + +#define MBEDTLS_SSL_SIG_ANON 0 +#define MBEDTLS_SSL_SIG_RSA 1 +#define MBEDTLS_SSL_SIG_ECDSA 3 + +/* + * Client Certificate Types + * RFC 5246 section 7.4.4 plus RFC 4492 section 5.5 + */ +#define MBEDTLS_SSL_CERT_TYPE_RSA_SIGN 1 +#define MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN 64 + +/* + * Message, alert and handshake types + */ +#define MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC 20 +#define MBEDTLS_SSL_MSG_ALERT 21 +#define MBEDTLS_SSL_MSG_HANDSHAKE 22 +#define MBEDTLS_SSL_MSG_APPLICATION_DATA 23 + +#define MBEDTLS_SSL_ALERT_LEVEL_WARNING 1 +#define MBEDTLS_SSL_ALERT_LEVEL_FATAL 2 + +#define MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY 0 /* 0x00 */ +#define MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE 10 /* 0x0A */ +#define MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC 20 /* 0x14 */ +#define MBEDTLS_SSL_ALERT_MSG_DECRYPTION_FAILED 21 /* 0x15 */ +#define MBEDTLS_SSL_ALERT_MSG_RECORD_OVERFLOW 22 /* 0x16 */ +#define MBEDTLS_SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30 /* 0x1E */ +#define MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE 40 /* 0x28 */ +#define MBEDTLS_SSL_ALERT_MSG_NO_CERT 41 /* 0x29 */ +#define MBEDTLS_SSL_ALERT_MSG_BAD_CERT 42 /* 0x2A */ +#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT 43 /* 0x2B */ +#define MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED 44 /* 0x2C */ +#define MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED 45 /* 0x2D */ +#define MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN 46 /* 0x2E */ +#define MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER 47 /* 0x2F */ +#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA 48 /* 0x30 */ +#define MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED 49 /* 0x31 */ +#define MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR 50 /* 0x32 */ +#define MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR 51 /* 0x33 */ +#define MBEDTLS_SSL_ALERT_MSG_EXPORT_RESTRICTION 60 /* 0x3C */ +#define MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION 70 /* 0x46 */ +#define MBEDTLS_SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71 /* 0x47 */ +#define MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR 80 /* 0x50 */ +#define MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK 86 /* 0x56 */ +#define MBEDTLS_SSL_ALERT_MSG_USER_CANCELED 90 /* 0x5A */ +#define MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION 100 /* 0x64 */ +#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT 110 /* 0x6E */ +#define MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME 112 /* 0x70 */ +#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY 115 /* 0x73 */ +#define MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL 120 /* 0x78 */ + +#define MBEDTLS_SSL_HS_HELLO_REQUEST 0 +#define MBEDTLS_SSL_HS_CLIENT_HELLO 1 +#define MBEDTLS_SSL_HS_SERVER_HELLO 2 +#define MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST 3 +#define MBEDTLS_SSL_HS_NEW_SESSION_TICKET 4 +#define MBEDTLS_SSL_HS_CERTIFICATE 11 +#define MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE 12 +#define MBEDTLS_SSL_HS_CERTIFICATE_REQUEST 13 +#define MBEDTLS_SSL_HS_SERVER_HELLO_DONE 14 +#define MBEDTLS_SSL_HS_CERTIFICATE_VERIFY 15 +#define MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE 16 +#define MBEDTLS_SSL_HS_FINISHED 20 + +/* + * TLS extensions + */ +#define MBEDTLS_TLS_EXT_SERVERNAME 0 +#define MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME 0 + +#define MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH 1 + +#define MBEDTLS_TLS_EXT_TRUNCATED_HMAC 4 + +#define MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES 10 +#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS 11 + +#define MBEDTLS_TLS_EXT_SIG_ALG 13 + +#define MBEDTLS_TLS_EXT_ALPN 16 + +#define MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC 22 /* 0x16 */ +#define MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET 0x0017 /* 23 */ + +#define MBEDTLS_TLS_EXT_SESSION_TICKET 35 + +#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP 256 /* experimental */ + +#define MBEDTLS_TLS_EXT_RENEGOTIATION_INFO 0xFF01 + +/* + * Size defines + */ +#if !defined(MBEDTLS_PSK_MAX_LEN) +#define MBEDTLS_PSK_MAX_LEN 32 /* 256 bits */ +#endif + +/* Dummy type used only for its size */ +union mbedtls_ssl_premaster_secret +{ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) + unsigned char _pms_rsa[48]; /* RFC 5246 8.1.1 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) + unsigned char _pms_dhm[MBEDTLS_MPI_MAX_SIZE]; /* RFC 5246 8.1.2 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) + unsigned char _pms_ecdh[MBEDTLS_ECP_MAX_BYTES]; /* RFC 4492 5.10 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) + unsigned char _pms_psk[4 + 2 * MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 2 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + unsigned char _pms_dhe_psk[4 + MBEDTLS_MPI_MAX_SIZE + + MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 3 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + unsigned char _pms_rsa_psk[52 + MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 4 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) + unsigned char _pms_ecdhe_psk[4 + MBEDTLS_ECP_MAX_BYTES + + MBEDTLS_PSK_MAX_LEN]; /* RFC 5489 2 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + unsigned char _pms_ecjpake[32]; /* Thread spec: SHA-256 output */ +#endif +}; + +#define MBEDTLS_PREMASTER_SIZE sizeof( union mbedtls_ssl_premaster_secret ) + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * SSL state machine + */ +typedef enum +{ + MBEDTLS_SSL_HELLO_REQUEST, + MBEDTLS_SSL_CLIENT_HELLO, + MBEDTLS_SSL_SERVER_HELLO, + MBEDTLS_SSL_SERVER_CERTIFICATE, + MBEDTLS_SSL_SERVER_KEY_EXCHANGE, + MBEDTLS_SSL_CERTIFICATE_REQUEST, + MBEDTLS_SSL_SERVER_HELLO_DONE, + MBEDTLS_SSL_CLIENT_CERTIFICATE, + MBEDTLS_SSL_CLIENT_KEY_EXCHANGE, + MBEDTLS_SSL_CERTIFICATE_VERIFY, + MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC, + MBEDTLS_SSL_CLIENT_FINISHED, + MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC, + MBEDTLS_SSL_SERVER_FINISHED, + MBEDTLS_SSL_FLUSH_BUFFERS, + MBEDTLS_SSL_HANDSHAKE_WRAPUP, + MBEDTLS_SSL_HANDSHAKE_OVER, + MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET, + MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT, +} +mbedtls_ssl_states; + +/** + * \brief Callback type: send data on the network. + * + * \note That callback may be either blocking or non-blocking. + * + * \param ctx Context for the send callback (typically a file descriptor) + * \param buf Buffer holding the data to send + * \param len Length of the data to send + * + * \return The callback must return the number of bytes sent if any, + * or a non-zero error code. + * If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_WRITE + * must be returned when the operation would block. + * + * \note The callback is allowed to send fewer bytes than requested. + * It must always return the number of bytes actually sent. + */ +typedef int mbedtls_ssl_send_t( void *ctx, + const unsigned char *buf, + size_t len ); + +/** + * \brief Callback type: receive data from the network. + * + * \note That callback may be either blocking or non-blocking. + * + * \param ctx Context for the receive callback (typically a file + * descriptor) + * \param buf Buffer to write the received data to + * \param len Length of the receive buffer + * + * \return The callback must return the number of bytes received, + * or a non-zero error code. + * If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_READ + * must be returned when the operation would block. + * + * \note The callback may receive fewer bytes than the length of the + * buffer. It must always return the number of bytes actually + * received and written to the buffer. + */ +typedef int mbedtls_ssl_recv_t( void *ctx, + unsigned char *buf, + size_t len ); + +/** + * \brief Callback type: receive data from the network, with timeout + * + * \note That callback must block until data is received, or the + * timeout delay expires, or the operation is interrupted by a + * signal. + * + * \param ctx Context for the receive callback (typically a file descriptor) + * \param buf Buffer to write the received data to + * \param len Length of the receive buffer + * \param timeout Maximum nomber of millisecondes to wait for data + * 0 means no timeout (potentially waiting forever) + * + * \return The callback must return the number of bytes received, + * or a non-zero error code: + * \c MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out, + * \c MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal. + * + * \note The callback may receive fewer bytes than the length of the + * buffer. It must always return the number of bytes actually + * received and written to the buffer. + */ +typedef int mbedtls_ssl_recv_timeout_t( void *ctx, + unsigned char *buf, + size_t len, + uint32_t timeout ); +/** + * \brief Callback type: set a pair of timers/delays to watch + * + * \param ctx Context pointer + * \param int_ms Intermediate delay in milliseconds + * \param fin_ms Final delay in milliseconds + * 0 cancels the current timer. + * + * \note This callback must at least store the necessary information + * for the associated \c mbedtls_ssl_get_timer_t callback to + * return correct information. + * + * \note If using a event-driven style of programming, an event must + * be generated when the final delay is passed. The event must + * cause a call to \c mbedtls_ssl_handshake() with the proper + * SSL context to be scheduled. Care must be taken to ensure + * that at most one such call happens at a time. + * + * \note Only one timer at a time must be running. Calling this + * function while a timer is running must cancel it. Cancelled + * timers must not generate any event. + */ +typedef void mbedtls_ssl_set_timer_t( void * ctx, + uint32_t int_ms, + uint32_t fin_ms ); + +/** + * \brief Callback type: get status of timers/delays + * + * \param ctx Context pointer + * + * \return This callback must return: + * -1 if cancelled (fin_ms == 0), + * 0 if none of the delays have passed, + * 1 if only the intermediate delay has passed, + * 2 if the final delay has passed. + */ +typedef int mbedtls_ssl_get_timer_t( void * ctx ); + + +/* Defined below */ +typedef struct mbedtls_ssl_session mbedtls_ssl_session; +typedef struct mbedtls_ssl_context mbedtls_ssl_context; +typedef struct mbedtls_ssl_config mbedtls_ssl_config; + +/* Defined in ssl_internal.h */ +typedef struct mbedtls_ssl_transform mbedtls_ssl_transform; +typedef struct mbedtls_ssl_handshake_params mbedtls_ssl_handshake_params; +#if defined(MBEDTLS_X509_CRT_PARSE_C) +typedef struct mbedtls_ssl_key_cert mbedtls_ssl_key_cert; +#endif +#if defined(MBEDTLS_SSL_PROTO_DTLS) +typedef struct mbedtls_ssl_flight_item mbedtls_ssl_flight_item; +#endif + +/* + * This structure is used for storing current session data. + */ +struct mbedtls_ssl_session +{ +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t start; /*!< starting time */ +#endif + int ciphersuite; /*!< chosen ciphersuite */ + int compression; /*!< chosen compression */ + size_t id_len; /*!< session id length */ + unsigned char id[32]; /*!< session identifier */ + unsigned char master[48]; /*!< the master secret */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + mbedtls_x509_crt *peer_cert; /*!< peer X.509 cert chain */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + uint32_t verify_result; /*!< verification result */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) + unsigned char *ticket; /*!< RFC 5077 session ticket */ + size_t ticket_len; /*!< session ticket length */ + uint32_t ticket_lifetime; /*!< ticket lifetime hint */ +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + unsigned char mfl_code; /*!< MaxFragmentLength negotiated by peer */ +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + int trunc_hmac; /*!< flag for truncated hmac activation */ +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + int encrypt_then_mac; /*!< flag for EtM activation */ +#endif +}; + +/** + * SSL/TLS configuration to be shared between mbedtls_ssl_context structures. + */ +struct mbedtls_ssl_config +{ + /* Group items by size (largest first) to minimize padding overhead */ + + /* + * Pointers + */ + + const int *ciphersuite_list[4]; /*!< allowed ciphersuites per version */ + + /** Callback for printing debug output */ + void (*f_dbg)(void *, int, const char *, int, const char *); + void *p_dbg; /*!< context for the debug function */ + + /** Callback for getting (pseudo-)random numbers */ + int (*f_rng)(void *, unsigned char *, size_t); + void *p_rng; /*!< context for the RNG function */ + + /** Callback to retrieve a session from the cache */ + int (*f_get_cache)(void *, mbedtls_ssl_session *); + /** Callback to store a session into the cache */ + int (*f_set_cache)(void *, const mbedtls_ssl_session *); + void *p_cache; /*!< context for cache callbacks */ + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + /** Callback for setting cert according to SNI extension */ + int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *, size_t); + void *p_sni; /*!< context for SNI callback */ +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /** Callback to customize X.509 certificate chain verification */ + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *); + void *p_vrfy; /*!< context for X.509 verify calllback */ +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + /** Callback to retrieve PSK key from identity */ + int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, size_t); + void *p_psk; /*!< context for PSK callback */ +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) + /** Callback to create & write a cookie for ClientHello veirifcation */ + int (*f_cookie_write)( void *, unsigned char **, unsigned char *, + const unsigned char *, size_t ); + /** Callback to verify validity of a ClientHello cookie */ + int (*f_cookie_check)( void *, const unsigned char *, size_t, + const unsigned char *, size_t ); + void *p_cookie; /*!< context for the cookie callbacks */ +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C) + /** Callback to create & write a session ticket */ + int (*f_ticket_write)( void *, const mbedtls_ssl_session *, + unsigned char *, const unsigned char *, size_t *, uint32_t * ); + /** Callback to parse a session ticket into a session structure */ + int (*f_ticket_parse)( void *, mbedtls_ssl_session *, unsigned char *, size_t); + void *p_ticket; /*!< context for the ticket callbacks */ +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_EXPORT_KEYS) + /** Callback to export key block and master secret */ + int (*f_export_keys)( void *, const unsigned char *, + const unsigned char *, size_t, size_t, size_t ); + void *p_export_keys; /*!< context for key export callback */ +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + const mbedtls_x509_crt_profile *cert_profile; /*!< verification profile */ + mbedtls_ssl_key_cert *key_cert; /*!< own certificate/key pair(s) */ + mbedtls_x509_crt *ca_chain; /*!< trusted CAs */ + mbedtls_x509_crl *ca_crl; /*!< trusted CAs CRLs */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) + const int *sig_hashes; /*!< allowed signature hashes */ +#endif + +#if defined(MBEDTLS_ECP_C) + const mbedtls_ecp_group_id *curve_list; /*!< allowed curves */ +#endif + +#if defined(MBEDTLS_DHM_C) + mbedtls_mpi dhm_P; /*!< prime modulus for DHM */ + mbedtls_mpi dhm_G; /*!< generator for DHM */ +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + unsigned char *psk; /*!< pre-shared key */ + size_t psk_len; /*!< length of the pre-shared key */ + unsigned char *psk_identity; /*!< identity for PSK negotiation */ + size_t psk_identity_len;/*!< length of identity */ +#endif + +#if defined(MBEDTLS_SSL_ALPN) + const char **alpn_list; /*!< ordered list of protocols */ +#endif + + /* + * Numerical settings (int then char) + */ + + uint32_t read_timeout; /*!< timeout for mbedtls_ssl_read (ms) */ + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + uint32_t hs_timeout_min; /*!< initial value of the handshake + retransmission timeout (ms) */ + uint32_t hs_timeout_max; /*!< maximum value of the handshake + retransmission timeout (ms) */ +#endif + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + int renego_max_records; /*!< grace period for renegotiation */ + unsigned char renego_period[8]; /*!< value of the record counters + that triggers renegotiation */ +#endif + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) + unsigned int badmac_limit; /*!< limit of records with a bad MAC */ +#endif + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) + unsigned int dhm_min_bitlen; /*!< min. bit length of the DHM prime */ +#endif + + unsigned char max_major_ver; /*!< max. major version used */ + unsigned char max_minor_ver; /*!< max. minor version used */ + unsigned char min_major_ver; /*!< min. major version used */ + unsigned char min_minor_ver; /*!< min. minor version used */ + + /* + * Flags (bitfields) + */ + + unsigned int endpoint : 1; /*!< 0: client, 1: server */ + unsigned int transport : 1; /*!< stream (TLS) or datagram (DTLS) */ + unsigned int authmode : 2; /*!< MBEDTLS_SSL_VERIFY_XXX */ + /* needed even with renego disabled for LEGACY_BREAK_HANDSHAKE */ + unsigned int allow_legacy_renegotiation : 2 ; /*!< MBEDTLS_LEGACY_XXX */ +#if defined(MBEDTLS_ARC4_C) + unsigned int arc4_disabled : 1; /*!< blacklist RC4 ciphersuites? */ +#endif +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + unsigned int mfl_code : 3; /*!< desired fragment length */ +#endif +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + unsigned int encrypt_then_mac : 1 ; /*!< negotiate encrypt-then-mac? */ +#endif +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + unsigned int extended_ms : 1; /*!< negotiate extended master secret? */ +#endif +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + unsigned int anti_replay : 1; /*!< detect and prevent replay? */ +#endif +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) + unsigned int cbc_record_splitting : 1; /*!< do cbc record splitting */ +#endif +#if defined(MBEDTLS_SSL_RENEGOTIATION) + unsigned int disable_renegotiation : 1; /*!< disable renegotiation? */ +#endif +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + unsigned int trunc_hmac : 1; /*!< negotiate truncated hmac? */ +#endif +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + unsigned int session_tickets : 1; /*!< use session tickets? */ +#endif +#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C) + unsigned int fallback : 1; /*!< is this a fallback? */ +#endif +}; + + +struct mbedtls_ssl_context +{ + const mbedtls_ssl_config *conf; /*!< configuration information */ + + /* + * Miscellaneous + */ + int state; /*!< SSL handshake: current state */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + int renego_status; /*!< Initial, in progress, pending? */ + int renego_records_seen; /*!< Records since renego request, or with DTLS, + number of retransmissions of request if + renego_max_records is < 0 */ +#endif + + int major_ver; /*!< equal to MBEDTLS_SSL_MAJOR_VERSION_3 */ + int minor_ver; /*!< either 0 (SSL3) or 1 (TLS1.0) */ + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) + unsigned badmac_seen; /*!< records with a bad MAC received */ +#endif + + mbedtls_ssl_send_t *f_send; /*!< Callback for network send */ + mbedtls_ssl_recv_t *f_recv; /*!< Callback for network receive */ + mbedtls_ssl_recv_timeout_t *f_recv_timeout; + /*!< Callback for network receive with timeout */ + + void *p_bio; /*!< context for I/O operations */ + + /* + * Session layer + */ + mbedtls_ssl_session *session_in; /*!< current session data (in) */ + mbedtls_ssl_session *session_out; /*!< current session data (out) */ + mbedtls_ssl_session *session; /*!< negotiated session data */ + mbedtls_ssl_session *session_negotiate; /*!< session data in negotiation */ + + mbedtls_ssl_handshake_params *handshake; /*!< params required only during + the handshake process */ + + /* + * Record layer transformations + */ + mbedtls_ssl_transform *transform_in; /*!< current transform params (in) */ + mbedtls_ssl_transform *transform_out; /*!< current transform params (in) */ + mbedtls_ssl_transform *transform; /*!< negotiated transform params */ + mbedtls_ssl_transform *transform_negotiate; /*!< transform params in negotiation */ + + /* + * Timers + */ + void *p_timer; /*!< context for the timer callbacks */ + + mbedtls_ssl_set_timer_t *f_set_timer; /*!< set timer callback */ + mbedtls_ssl_get_timer_t *f_get_timer; /*!< get timer callback */ + + /* + * Record layer (incoming data) + */ + unsigned char *in_buf; /*!< input buffer */ + unsigned char *in_ctr; /*!< 64-bit incoming message counter + TLS: maintained by us + DTLS: read from peer */ + unsigned char *in_hdr; /*!< start of record header */ + unsigned char *in_len; /*!< two-bytes message length field */ + unsigned char *in_iv; /*!< ivlen-byte IV */ + unsigned char *in_msg; /*!< message contents (in_iv+ivlen) */ + unsigned char *in_offt; /*!< read offset in application data */ + + int in_msgtype; /*!< record header: message type */ + size_t in_msglen; /*!< record header: message length */ + size_t in_left; /*!< amount of data read so far */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + uint16_t in_epoch; /*!< DTLS epoch for incoming records */ + size_t next_record_offset; /*!< offset of the next record in datagram + (equal to in_left if none) */ +#endif +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + uint64_t in_window_top; /*!< last validated record seq_num */ + uint64_t in_window; /*!< bitmask for replay detection */ +#endif + + size_t in_hslen; /*!< current handshake message length, + including the handshake header */ + int nb_zero; /*!< # of 0-length encrypted messages */ + int record_read; /*!< record is already present */ + + /* + * Record layer (outgoing data) + */ + unsigned char *out_buf; /*!< output buffer */ + unsigned char *out_ctr; /*!< 64-bit outgoing message counter */ + unsigned char *out_hdr; /*!< start of record header */ + unsigned char *out_len; /*!< two-bytes message length field */ + unsigned char *out_iv; /*!< ivlen-byte IV */ + unsigned char *out_msg; /*!< message contents (out_iv+ivlen) */ + + int out_msgtype; /*!< record header: message type */ + size_t out_msglen; /*!< record header: message length */ + size_t out_left; /*!< amount of data not yet written */ + +#if defined(MBEDTLS_ZLIB_SUPPORT) + unsigned char *compress_buf; /*!< zlib data buffer */ +#endif +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) + signed char split_done; /*!< current record already splitted? */ +#endif + + /* + * PKI layer + */ + int client_auth; /*!< flag for client auth. */ + + /* + * User settings + */ +#if defined(MBEDTLS_X509_CRT_PARSE_C) + char *hostname; /*!< expected peer CN for verification + (and SNI if available) */ +#endif + +#if defined(MBEDTLS_SSL_ALPN) + const char *alpn_chosen; /*!< negotiated protocol */ +#endif + + /* + * Information for DTLS hello verify + */ +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) + unsigned char *cli_id; /*!< transport-level ID of the client */ + size_t cli_id_len; /*!< length of cli_id */ +#endif + + /* + * Secure renegotiation + */ + /* needed to know when to send extension on server */ + int secure_renegotiation; /*!< does peer support legacy or + secure renegotiation */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + size_t verify_data_len; /*!< length of verify data stored */ + char own_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */ + char peer_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */ +#endif +}; + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + +#define MBEDTLS_SSL_CHANNEL_OUTBOUND 0 +#define MBEDTLS_SSL_CHANNEL_INBOUND 1 + +extern int (*mbedtls_ssl_hw_record_init)(mbedtls_ssl_context *ssl, + const unsigned char *key_enc, const unsigned char *key_dec, + size_t keylen, + const unsigned char *iv_enc, const unsigned char *iv_dec, + size_t ivlen, + const unsigned char *mac_enc, const unsigned char *mac_dec, + size_t maclen); +extern int (*mbedtls_ssl_hw_record_activate)(mbedtls_ssl_context *ssl, int direction); +extern int (*mbedtls_ssl_hw_record_reset)(mbedtls_ssl_context *ssl); +extern int (*mbedtls_ssl_hw_record_write)(mbedtls_ssl_context *ssl); +extern int (*mbedtls_ssl_hw_record_read)(mbedtls_ssl_context *ssl); +extern int (*mbedtls_ssl_hw_record_finish)(mbedtls_ssl_context *ssl); +#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ + +/** + * \brief Returns the list of ciphersuites supported by the SSL/TLS module. + * + * \return a statically allocated array of ciphersuites, the last + * entry is 0. + */ +const int *mbedtls_ssl_list_ciphersuites( void ); + +/** + * \brief Return the name of the ciphersuite associated with the + * given ID + * + * \param ciphersuite_id SSL ciphersuite ID + * + * \return a string containing the ciphersuite name + */ +const char *mbedtls_ssl_get_ciphersuite_name( const int ciphersuite_id ); + +/** + * \brief Return the ID of the ciphersuite associated with the + * given name + * + * \param ciphersuite_name SSL ciphersuite name + * + * \return the ID with the ciphersuite or 0 if not found + */ +int mbedtls_ssl_get_ciphersuite_id( const char *ciphersuite_name ); + +/** + * \brief Initialize an SSL context + * Just makes the context ready for mbedtls_ssl_setup() or + * mbedtls_ssl_free() + * + * \param ssl SSL context + */ +void mbedtls_ssl_init( mbedtls_ssl_context *ssl ); + +/** + * \brief Set up an SSL context for use + * + * \note No copy of the configuration context is made, it can be + * shared by many mbedtls_ssl_context structures. + * + * \warning Modifying the conf structure after it has been used in this + * function is unsupported! + * + * \param ssl SSL context + * \param conf SSL configuration to use + * + * \return 0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED if + * memory allocation failed + */ +int mbedtls_ssl_setup( mbedtls_ssl_context *ssl, + const mbedtls_ssl_config *conf ); + +/** + * \brief Reset an already initialized SSL context for re-use + * while retaining application-set variables, function + * pointers and data. + * + * \param ssl SSL context + * \return 0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED, + MBEDTLS_ERR_SSL_HW_ACCEL_FAILED or + * MBEDTLS_ERR_SSL_COMPRESSION_FAILED + */ +int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl ); + +/** + * \brief Set the current endpoint type + * + * \param conf SSL configuration + * \param endpoint must be MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER + */ +void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint ); + +/** + * \brief Set the transport type (TLS or DTLS). + * Default: TLS + * + * \note For DTLS, you must either provide a recv callback that + * doesn't block, or one that handles timeouts, see + * \c mbedtls_ssl_set_bio(). You also need to provide timer + * callbacks with \c mbedtls_ssl_set_timer_cb(). + * + * \param conf SSL configuration + * \param transport transport type: + * MBEDTLS_SSL_TRANSPORT_STREAM for TLS, + * MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS. + */ +void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport ); + +/** + * \brief Set the certificate verification mode + * Default: NONE on server, REQUIRED on client + * + * \param conf SSL configuration + * \param authmode can be: + * + * MBEDTLS_SSL_VERIFY_NONE: peer certificate is not checked + * (default on server) + * (insecure on client) + * + * MBEDTLS_SSL_VERIFY_OPTIONAL: peer certificate is checked, however the + * handshake continues even if verification failed; + * mbedtls_ssl_get_verify_result() can be called after the + * handshake is complete. + * + * MBEDTLS_SSL_VERIFY_REQUIRED: peer *must* present a valid certificate, + * handshake is aborted if verification failed. + * (default on client) + * + * \note On client, MBEDTLS_SSL_VERIFY_REQUIRED is the recommended mode. + * With MBEDTLS_SSL_VERIFY_OPTIONAL, the user needs to call mbedtls_ssl_get_verify_result() at + * the right time(s), which may not be obvious, while REQUIRED always perform + * the verification as soon as possible. For example, REQUIRED was protecting + * against the "triple handshake" attack even before it was found. + */ +void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Set the verification callback (Optional). + * + * If set, the verify callback is called for each + * certificate in the chain. For implementation + * information, please see \c x509parse_verify() + * + * \param conf SSL configuration + * \param f_vrfy verification function + * \param p_vrfy verification parameter + */ +void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/** + * \brief Set the random number generator callback + * + * \param conf SSL configuration + * \param f_rng RNG function + * \param p_rng RNG parameter + */ +void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Set the debug callback + * + * The callback has the following argument: + * void * opaque context for the callback + * int debug level + * const char * file name + * int line number + * const char * message + * + * \param conf SSL configuration + * \param f_dbg debug function + * \param p_dbg debug parameter + */ +void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf, + void (*f_dbg)(void *, int, const char *, int, const char *), + void *p_dbg ); + +/** + * \brief Set the underlying BIO callbacks for write, read and + * read-with-timeout. + * + * \param ssl SSL context + * \param p_bio parameter (context) shared by BIO callbacks + * \param f_send write callback + * \param f_recv read callback + * \param f_recv_timeout blocking read callback with timeout. + * + * \note One of f_recv or f_recv_timeout can be NULL, in which case + * the other is used. If both are non-NULL, f_recv_timeout is + * used and f_recv is ignored (as if it were NULL). + * + * \note The two most common use cases are: + * - non-blocking I/O, f_recv != NULL, f_recv_timeout == NULL + * - blocking I/O, f_recv == NULL, f_recv_timout != NULL + * + * \note For DTLS, you need to provide either a non-NULL + * f_recv_timeout callback, or a f_recv that doesn't block. + * + * \note See the documentations of \c mbedtls_ssl_sent_t, + * \c mbedtls_ssl_recv_t and \c mbedtls_ssl_recv_timeout_t for + * the conventions those callbacks must follow. + * + * \note On some platforms, net_sockets.c provides + * \c mbedtls_net_send(), \c mbedtls_net_recv() and + * \c mbedtls_net_recv_timeout() that are suitable to be used + * here. + */ +void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl, + void *p_bio, + mbedtls_ssl_send_t *f_send, + mbedtls_ssl_recv_t *f_recv, + mbedtls_ssl_recv_timeout_t *f_recv_timeout ); + +/** + * \brief Set the timeout period for mbedtls_ssl_read() + * (Default: no timeout.) + * + * \param conf SSL configuration context + * \param timeout Timeout value in milliseconds. + * Use 0 for no timeout (default). + * + * \note With blocking I/O, this will only work if a non-NULL + * \c f_recv_timeout was set with \c mbedtls_ssl_set_bio(). + * With non-blocking I/O, this will only work if timer + * callbacks were set with \c mbedtls_ssl_set_timer_cb(). + * + * \note With non-blocking I/O, you may also skip this function + * altogether and handle timeouts at the application layer. + */ +void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout ); + +/** + * \brief Set the timer callbacks (Mandatory for DTLS.) + * + * \param ssl SSL context + * \param p_timer parameter (context) shared by timer callbacks + * \param f_set_timer set timer callback + * \param f_get_timer get timer callback. Must return: + * + * \note See the documentation of \c mbedtls_ssl_set_timer_t and + * \c mbedtls_ssl_get_timer_t for the conventions this pair of + * callbacks must fallow. + * + * \note On some platforms, timing.c provides + * \c mbedtls_timing_set_delay() and + * \c mbedtls_timing_get_delay() that are suitable for using + * here, except if using an event-driven style. + * + * \note See also the "DTLS tutorial" article in our knowledge base. + * https://tls.mbed.org/kb/how-to/dtls-tutorial + */ +void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl, + void *p_timer, + mbedtls_ssl_set_timer_t *f_set_timer, + mbedtls_ssl_get_timer_t *f_get_timer ); + +/** + * \brief Callback type: generate and write session ticket + * + * \note This describes what a callback implementation should do. + * This callback should generate an encrypted and + * authenticated ticket for the session and write it to the + * output buffer. Here, ticket means the opaque ticket part + * of the NewSessionTicket structure of RFC 5077. + * + * \param p_ticket Context for the callback + * \param session SSL session to be written in the ticket + * \param start Start of the output buffer + * \param end End of the output buffer + * \param tlen On exit, holds the length written + * \param lifetime On exit, holds the lifetime of the ticket in seconds + * + * \return 0 if successful, or + * a specific MBEDTLS_ERR_XXX code. + */ +typedef int mbedtls_ssl_ticket_write_t( void *p_ticket, + const mbedtls_ssl_session *session, + unsigned char *start, + const unsigned char *end, + size_t *tlen, + uint32_t *lifetime ); + +#if defined(MBEDTLS_SSL_EXPORT_KEYS) +/** + * \brief Callback type: Export key block and master secret + * + * \note This is required for certain uses of TLS, e.g. EAP-TLS + * (RFC 5216) and Thread. The key pointers are ephemeral and + * therefore must not be stored. The master secret and keys + * should not be used directly except as an input to a key + * derivation function. + * + * \param p_expkey Context for the callback + * \param ms Pointer to master secret (fixed length: 48 bytes) + * \param kb Pointer to key block, see RFC 5246 section 6.3 + * (variable length: 2 * maclen + 2 * keylen + 2 * ivlen). + * \param maclen MAC length + * \param keylen Key length + * \param ivlen IV length + * + * \return 0 if successful, or + * a specific MBEDTLS_ERR_XXX code. + */ +typedef int mbedtls_ssl_export_keys_t( void *p_expkey, + const unsigned char *ms, + const unsigned char *kb, + size_t maclen, + size_t keylen, + size_t ivlen ); +#endif /* MBEDTLS_SSL_EXPORT_KEYS */ + +/** + * \brief Callback type: parse and load session ticket + * + * \note This describes what a callback implementation should do. + * This callback should parse a session ticket as generated + * by the corresponding mbedtls_ssl_ticket_write_t function, + * and, if the ticket is authentic and valid, load the + * session. + * + * \note The implementation is allowed to modify the first len + * bytes of the input buffer, eg to use it as a temporary + * area for the decrypted ticket contents. + * + * \param p_ticket Context for the callback + * \param session SSL session to be loaded + * \param buf Start of the buffer containing the ticket + * \param len Length of the ticket. + * + * \return 0 if successful, or + * MBEDTLS_ERR_SSL_INVALID_MAC if not authentic, or + * MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED if expired, or + * any other non-zero code for other failures. + */ +typedef int mbedtls_ssl_ticket_parse_t( void *p_ticket, + mbedtls_ssl_session *session, + unsigned char *buf, + size_t len ); + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Configure SSL session ticket callbacks (server only). + * (Default: none.) + * + * \note On server, session tickets are enabled by providing + * non-NULL callbacks. + * + * \note On client, use \c mbedtls_ssl_conf_session_tickets(). + * + * \param conf SSL configuration context + * \param f_ticket_write Callback for writing a ticket + * \param f_ticket_parse Callback for parsing a ticket + * \param p_ticket Context shared by the two callbacks + */ +void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf, + mbedtls_ssl_ticket_write_t *f_ticket_write, + mbedtls_ssl_ticket_parse_t *f_ticket_parse, + void *p_ticket ); +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_EXPORT_KEYS) +/** + * \brief Configure key export callback. + * (Default: none.) + * + * \note See \c mbedtls_ssl_export_keys_t. + * + * \param conf SSL configuration context + * \param f_export_keys Callback for exporting keys + * \param p_export_keys Context for the callback + */ +void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf, + mbedtls_ssl_export_keys_t *f_export_keys, + void *p_export_keys ); +#endif /* MBEDTLS_SSL_EXPORT_KEYS */ + +/** + * \brief Callback type: generate a cookie + * + * \param ctx Context for the callback + * \param p Buffer to write to, + * must be updated to point right after the cookie + * \param end Pointer to one past the end of the output buffer + * \param info Client ID info that was passed to + * \c mbedtls_ssl_set_client_transport_id() + * \param ilen Length of info in bytes + * + * \return The callback must return 0 on success, + * or a negative error code. + */ +typedef int mbedtls_ssl_cookie_write_t( void *ctx, + unsigned char **p, unsigned char *end, + const unsigned char *info, size_t ilen ); + +/** + * \brief Callback type: verify a cookie + * + * \param ctx Context for the callback + * \param cookie Cookie to verify + * \param clen Length of cookie + * \param info Client ID info that was passed to + * \c mbedtls_ssl_set_client_transport_id() + * \param ilen Length of info in bytes + * + * \return The callback must return 0 if cookie is valid, + * or a negative error code. + */ +typedef int mbedtls_ssl_cookie_check_t( void *ctx, + const unsigned char *cookie, size_t clen, + const unsigned char *info, size_t ilen ); + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Register callbacks for DTLS cookies + * (Server only. DTLS only.) + * + * Default: dummy callbacks that fail, in order to force you to + * register working callbacks (and initialize their context). + * + * To disable HelloVerifyRequest, register NULL callbacks. + * + * \warning Disabling hello verification allows your server to be used + * for amplification in DoS attacks against other hosts. + * Only disable if you known this can't happen in your + * particular environment. + * + * \note See comments on \c mbedtls_ssl_handshake() about handling + * the MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED that is expected + * on the first handshake attempt when this is enabled. + * + * \note This is also necessary to handle client reconnection from + * the same port as described in RFC 6347 section 4.2.8 (only + * the variant with cookies is supported currently). See + * comments on \c mbedtls_ssl_read() for details. + * + * \param conf SSL configuration + * \param f_cookie_write Cookie write callback + * \param f_cookie_check Cookie check callback + * \param p_cookie Context for both callbacks + */ +void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf, + mbedtls_ssl_cookie_write_t *f_cookie_write, + mbedtls_ssl_cookie_check_t *f_cookie_check, + void *p_cookie ); + +/** + * \brief Set client's transport-level identification info. + * (Server only. DTLS only.) + * + * This is usually the IP address (and port), but could be + * anything identify the client depending on the underlying + * network stack. Used for HelloVerifyRequest with DTLS. + * This is *not* used to route the actual packets. + * + * \param ssl SSL context + * \param info Transport-level info identifying the client (eg IP + port) + * \param ilen Length of info in bytes + * + * \note An internal copy is made, so the info buffer can be reused. + * + * \return 0 on success, + * MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used on client, + * MBEDTLS_ERR_SSL_ALLOC_FAILED if out of memory. + */ +int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl, + const unsigned char *info, + size_t ilen ); + +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +/** + * \brief Enable or disable anti-replay protection for DTLS. + * (DTLS only, no effect on TLS.) + * Default: enabled. + * + * \param conf SSL configuration + * \param mode MBEDTLS_SSL_ANTI_REPLAY_ENABLED or MBEDTLS_SSL_ANTI_REPLAY_DISABLED. + * + * \warning Disabling this is a security risk unless the application + * protocol handles duplicated packets in a safe way. You + * should not disable this without careful consideration. + * However, if your application already detects duplicated + * packets and needs information about them to adjust its + * transmission strategy, then you'll want to disable this. + */ +void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode ); +#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) +/** + * \brief Set a limit on the number of records with a bad MAC + * before terminating the connection. + * (DTLS only, no effect on TLS.) + * Default: 0 (disabled). + * + * \param conf SSL configuration + * \param limit Limit, or 0 to disable. + * + * \note If the limit is N, then the connection is terminated when + * the Nth non-authentic record is seen. + * + * \note Records with an invalid header are not counted, only the + * ones going through the authentication-decryption phase. + * + * \note This is a security trade-off related to the fact that it's + * often relatively easy for an active attacker ot inject UDP + * datagrams. On one hand, setting a low limit here makes it + * easier for such an attacker to forcibly terminated a + * connection. On the other hand, a high limit or no limit + * might make us waste resources checking authentication on + * many bogus packets. + */ +void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit ); +#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */ + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +/** + * \brief Set retransmit timeout values for the DTLS handshake. + * (DTLS only, no effect on TLS.) + * + * \param conf SSL configuration + * \param min Initial timeout value in milliseconds. + * Default: 1000 (1 second). + * \param max Maximum timeout value in milliseconds. + * Default: 60000 (60 seconds). + * + * \note Default values are from RFC 6347 section 4.2.4.1. + * + * \note The 'min' value should typically be slightly above the + * expected round-trip time to your peer, plus whatever time + * it takes for the peer to process the message. For example, + * if your RTT is about 600ms and you peer needs up to 1s to + * do the cryptographic operations in the handshake, then you + * should set 'min' slightly above 1600. Lower values of 'min' + * might cause spurious resends which waste network resources, + * while larger value of 'min' will increase overall latency + * on unreliable network links. + * + * \note The more unreliable your network connection is, the larger + * your max / min ratio needs to be in order to achieve + * reliable handshakes. + * + * \note Messages are retransmitted up to log2(ceil(max/min)) times. + * For example, if min = 1s and max = 5s, the retransmit plan + * goes: send ... 1s -> resend ... 2s -> resend ... 4s -> + * resend ... 5s -> give up and return a timeout error. + */ +void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf, uint32_t min, uint32_t max ); +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Set the session cache callbacks (server-side only) + * If not set, no session resuming is done (except if session + * tickets are enabled too). + * + * The session cache has the responsibility to check for stale + * entries based on timeout. See RFC 5246 for recommendations. + * + * Warning: session.peer_cert is cleared by the SSL/TLS layer on + * connection shutdown, so do not cache the pointer! Either set + * it to NULL or make a full copy of the certificate. + * + * The get callback is called once during the initial handshake + * to enable session resuming. The get function has the + * following parameters: (void *parameter, mbedtls_ssl_session *session) + * If a valid entry is found, it should fill the master of + * the session object with the cached values and return 0, + * return 1 otherwise. Optionally peer_cert can be set as well + * if it is properly present in cache entry. + * + * The set callback is called once during the initial handshake + * to enable session resuming after the entire handshake has + * been finished. The set function has the following parameters: + * (void *parameter, const mbedtls_ssl_session *session). The function + * should create a cache entry for future retrieval based on + * the data in the session structure and should keep in mind + * that the mbedtls_ssl_session object presented (and all its referenced + * data) is cleared by the SSL/TLS layer when the connection is + * terminated. It is recommended to add metadata to determine if + * an entry is still valid in the future. Return 0 if + * successfully cached, return 1 otherwise. + * + * \param conf SSL configuration + * \param p_cache parmater (context) for both callbacks + * \param f_get_cache session get callback + * \param f_set_cache session set callback + */ +void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf, + void *p_cache, + int (*f_get_cache)(void *, mbedtls_ssl_session *), + int (*f_set_cache)(void *, const mbedtls_ssl_session *) ); +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Request resumption of session (client-side only) + * Session data is copied from presented session structure. + * + * \param ssl SSL context + * \param session session context + * + * \return 0 if successful, + * MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used server-side or + * arguments are otherwise invalid + * + * \sa mbedtls_ssl_get_session() + */ +int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session ); +#endif /* MBEDTLS_SSL_CLI_C */ + +/** + * \brief Set the list of allowed ciphersuites and the preference + * order. First in the list has the highest preference. + * (Overrides all version-specific lists) + * + * The ciphersuites array is not copied, and must remain + * valid for the lifetime of the ssl_config. + * + * Note: The server uses its own preferences + * over the preference of the client unless + * MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE is defined! + * + * \param conf SSL configuration + * \param ciphersuites 0-terminated list of allowed ciphersuites + */ +void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf, + const int *ciphersuites ); + +/** + * \brief Set the list of allowed ciphersuites and the + * preference order for a specific version of the protocol. + * (Only useful on the server side) + * + * The ciphersuites array is not copied, and must remain + * valid for the lifetime of the ssl_config. + * + * \param conf SSL configuration + * \param ciphersuites 0-terminated list of allowed ciphersuites + * \param major Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 + * supported) + * \param minor Minor version number (MBEDTLS_SSL_MINOR_VERSION_0, + * MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2, + * MBEDTLS_SSL_MINOR_VERSION_3 supported) + * + * \note With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 + * and MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2 + */ +void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf, + const int *ciphersuites, + int major, int minor ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Set the X.509 security profile used for verification + * + * \note The restrictions are enforced for all certificates in the + * chain. However, signatures in the handshake are not covered + * by this setting but by \b mbedtls_ssl_conf_sig_hashes(). + * + * \param conf SSL configuration + * \param profile Profile to use + */ +void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf, + const mbedtls_x509_crt_profile *profile ); + +/** + * \brief Set the data required to verify peer certificate + * + * \param conf SSL configuration + * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs) + * \param ca_crl trusted CA CRLs + */ +void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf, + mbedtls_x509_crt *ca_chain, + mbedtls_x509_crl *ca_crl ); + +/** + * \brief Set own certificate chain and private key + * + * \note own_cert should contain in order from the bottom up your + * certificate chain. The top certificate (self-signed) + * can be omitted. + * + * \note On server, this function can be called multiple times to + * provision more than one cert/key pair (eg one ECDSA, one + * RSA with SHA-256, one RSA with SHA-1). An adequate + * certificate will be selected according to the client's + * advertised capabilities. In case mutliple certificates are + * adequate, preference is given to the one set by the first + * call to this function, then second, etc. + * + * \note On client, only the first call has any effect. That is, + * only one client certificate can be provisioned. The + * server's preferences in its CertficateRequest message will + * be ignored and our only cert will be sent regardless of + * whether it matches those preferences - the server can then + * decide what it wants to do with it. + * + * \param conf SSL configuration + * \param own_cert own public certificate chain + * \param pk_key own private key + * + * \return 0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED + */ +int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf, + mbedtls_x509_crt *own_cert, + mbedtls_pk_context *pk_key ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) +/** + * \brief Set the Pre Shared Key (PSK) and the expected identity name + * + * \note This is mainly useful for clients. Servers will usually + * want to use \c mbedtls_ssl_conf_psk_cb() instead. + * + * \note Currently clients can only register one pre-shared key. + * In other words, the servers' identity hint is ignored. + * Support for setting multiple PSKs on clients and selecting + * one based on the identity hint is not a planned feature but + * feedback is welcomed. + * + * \param conf SSL configuration + * \param psk pointer to the pre-shared key + * \param psk_len pre-shared key length + * \param psk_identity pointer to the pre-shared key identity + * \param psk_identity_len identity key length + * + * \return 0 if successful or MBEDTLS_ERR_SSL_ALLOC_FAILED + */ +int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf, + const unsigned char *psk, size_t psk_len, + const unsigned char *psk_identity, size_t psk_identity_len ); + + +/** + * \brief Set the Pre Shared Key (PSK) for the current handshake + * + * \note This should only be called inside the PSK callback, + * ie the function passed to \c mbedtls_ssl_conf_psk_cb(). + * + * \param ssl SSL context + * \param psk pointer to the pre-shared key + * \param psk_len pre-shared key length + * + * \return 0 if successful or MBEDTLS_ERR_SSL_ALLOC_FAILED + */ +int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl, + const unsigned char *psk, size_t psk_len ); + +/** + * \brief Set the PSK callback (server-side only). + * + * If set, the PSK callback is called for each + * handshake where a PSK ciphersuite was negotiated. + * The caller provides the identity received and wants to + * receive the actual PSK data and length. + * + * The callback has the following parameters: (void *parameter, + * mbedtls_ssl_context *ssl, const unsigned char *psk_identity, + * size_t identity_len) + * If a valid PSK identity is found, the callback should use + * \c mbedtls_ssl_set_hs_psk() on the ssl context to set the + * correct PSK and return 0. + * Any other return value will result in a denied PSK identity. + * + * \note If you set a PSK callback using this function, then you + * don't need to set a PSK key and identity using + * \c mbedtls_ssl_conf_psk(). + * + * \param conf SSL configuration + * \param f_psk PSK identity function + * \param p_psk PSK identity parameter + */ +void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf, + int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, + size_t), + void *p_psk ); +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Set the Diffie-Hellman public P and G values, + * read as hexadecimal strings (server-side only) + * (Default: MBEDTLS_DHM_RFC5114_MODP_2048_[PG]) + * + * \param conf SSL configuration + * \param dhm_P Diffie-Hellman-Merkle modulus + * \param dhm_G Diffie-Hellman-Merkle generator + * + * \return 0 if successful + */ +int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G ); + +/** + * \brief Set the Diffie-Hellman public P and G values, + * read from existing context (server-side only) + * + * \param conf SSL configuration + * \param dhm_ctx Diffie-Hellman-Merkle context + * + * \return 0 if successful + */ +int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx ); +#endif /* MBEDTLS_DHM_C && defined(MBEDTLS_SSL_SRV_C) */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Set the minimum length for Diffie-Hellman parameters. + * (Client-side only.) + * (Default: 1024 bits.) + * + * \param conf SSL configuration + * \param bitlen Minimum bit length of the DHM prime + */ +void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf, + unsigned int bitlen ); +#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_ECP_C) +/** + * \brief Set the allowed curves in order of preference. + * (Default: all defined curves.) + * + * On server: this only affects selection of the ECDHE curve; + * the curves used for ECDH and ECDSA are determined by the + * list of available certificates instead. + * + * On client: this affects the list of curves offered for any + * use. The server can override our preference order. + * + * Both sides: limits the set of curves accepted for use in + * ECDHE and in the peer's end-entity certificate. + * + * \note This has no influence on which curves are allowed inside the + * certificate chains, see \c mbedtls_ssl_conf_cert_profile() + * for that. For the end-entity certificate however, the key + * will be accepted only if it is allowed both by this list + * and by the cert profile. + * + * \note This list should be ordered by decreasing preference + * (preferred curve first). + * + * \param conf SSL configuration + * \param curves Ordered list of allowed curves, + * terminated by MBEDTLS_ECP_DP_NONE. + */ +void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf, + const mbedtls_ecp_group_id *curves ); +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +/** + * \brief Set the allowed hashes for signatures during the handshake. + * (Default: all available hashes except MD5.) + * + * \note This only affects which hashes are offered and can be used + * for signatures during the handshake. Hashes for message + * authentication and the TLS PRF are controlled by the + * ciphersuite, see \c mbedtls_ssl_conf_ciphersuites(). Hashes + * used for certificate signature are controlled by the + * verification profile, see \c mbedtls_ssl_conf_cert_profile(). + * + * \note This list should be ordered by decreasing preference + * (preferred hash first). + * + * \param conf SSL configuration + * \param hashes Ordered list of allowed signature hashes, + * terminated by \c MBEDTLS_MD_NONE. + */ +void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf, + const int *hashes ); +#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Set the hostname to check against the received server + * certificate. It sets the ServerName TLS extension too, + * if the extension is enabled. + * (client-side only) + * + * \param ssl SSL context + * \param hostname the server hostname + * + * \return 0 if successful or MBEDTLS_ERR_SSL_ALLOC_FAILED + */ +int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +/** + * \brief Set own certificate and key for the current handshake + * + * \note Same as \c mbedtls_ssl_conf_own_cert() but for use within + * the SNI callback. + * + * \param ssl SSL context + * \param own_cert own public certificate chain + * \param pk_key own private key + * + * \return 0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED + */ +int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl, + mbedtls_x509_crt *own_cert, + mbedtls_pk_context *pk_key ); + +/** + * \brief Set the data required to verify peer certificate for the + * current handshake + * + * \note Same as \c mbedtls_ssl_conf_ca_chain() but for use within + * the SNI callback. + * + * \param ssl SSL context + * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs) + * \param ca_crl trusted CA CRLs + */ +void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl, + mbedtls_x509_crt *ca_chain, + mbedtls_x509_crl *ca_crl ); + +/** + * \brief Set authmode for the current handshake. + * + * \note Same as \c mbedtls_ssl_conf_authmode() but for use within + * the SNI callback. + * + * \param ssl SSL context + * \param authmode MBEDTLS_SSL_VERIFY_NONE, MBEDTLS_SSL_VERIFY_OPTIONAL or + * MBEDTLS_SSL_VERIFY_REQUIRED + */ +void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl, + int authmode ); + +/** + * \brief Set server side ServerName TLS extension callback + * (optional, server-side only). + * + * If set, the ServerName callback is called whenever the + * server receives a ServerName TLS extension from the client + * during a handshake. The ServerName callback has the + * following parameters: (void *parameter, mbedtls_ssl_context *ssl, + * const unsigned char *hostname, size_t len). If a suitable + * certificate is found, the callback must set the + * certificate(s) and key(s) to use with \c + * mbedtls_ssl_set_hs_own_cert() (can be called repeatedly), + * and may optionally adjust the CA and associated CRL with \c + * mbedtls_ssl_set_hs_ca_chain() as well as the client + * authentication mode with \c mbedtls_ssl_set_hs_authmode(), + * then must return 0. If no matching name is found, the + * callback must either set a default cert, or + * return non-zero to abort the handshake at this point. + * + * \param conf SSL configuration + * \param f_sni verification function + * \param p_sni verification parameter + */ +void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf, + int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *, + size_t), + void *p_sni ); +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +/** + * \brief Set the EC J-PAKE password for current handshake. + * + * \note An internal copy is made, and destroyed as soon as the + * handshake is completed, or when the SSL context is reset or + * freed. + * + * \note The SSL context needs to be already set up. The right place + * to call this function is between \c mbedtls_ssl_setup() or + * \c mbedtls_ssl_reset() and \c mbedtls_ssl_handshake(). + * + * \param ssl SSL context + * \param pw EC J-PAKE password (pre-shared secret) + * \param pw_len length of pw in bytes + * + * \return 0 on success, or a negative error code. + */ +int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl, + const unsigned char *pw, + size_t pw_len ); +#endif /*MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_ALPN) +/** + * \brief Set the supported Application Layer Protocols. + * + * \param conf SSL configuration + * \param protos Pointer to a NULL-terminated list of supported protocols, + * in decreasing preference order. The pointer to the list is + * recorded by the library for later reference as required, so + * the lifetime of the table must be atleast as long as the + * lifetime of the SSL configuration structure. + * + * \return 0 on success, or MBEDTLS_ERR_SSL_BAD_INPUT_DATA. + */ +int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos ); + +/** + * \brief Get the name of the negotiated Application Layer Protocol. + * This function should be called after the handshake is + * completed. + * + * \param ssl SSL context + * + * \return Protcol name, or NULL if no protocol was negotiated. + */ +const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl ); +#endif /* MBEDTLS_SSL_ALPN */ + +/** + * \brief Set the maximum supported version sent from the client side + * and/or accepted at the server side + * (Default: MBEDTLS_SSL_MAX_MAJOR_VERSION, MBEDTLS_SSL_MAX_MINOR_VERSION) + * + * \note This ignores ciphersuites from higher versions. + * + * \note With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 and + * MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2 + * + * \param conf SSL configuration + * \param major Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 supported) + * \param minor Minor version number (MBEDTLS_SSL_MINOR_VERSION_0, + * MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2, + * MBEDTLS_SSL_MINOR_VERSION_3 supported) + */ +void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor ); + +/** + * \brief Set the minimum accepted SSL/TLS protocol version + * (Default: TLS 1.0) + * + * \note Input outside of the SSL_MAX_XXXXX_VERSION and + * SSL_MIN_XXXXX_VERSION range is ignored. + * + * \note MBEDTLS_SSL_MINOR_VERSION_0 (SSL v3) should be avoided. + * + * \note With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 and + * MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2 + * + * \param conf SSL configuration + * \param major Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 supported) + * \param minor Minor version number (MBEDTLS_SSL_MINOR_VERSION_0, + * MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2, + * MBEDTLS_SSL_MINOR_VERSION_3 supported) + */ +void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor ); + +#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Set the fallback flag (client-side only). + * (Default: MBEDTLS_SSL_IS_NOT_FALLBACK). + * + * \note Set to MBEDTLS_SSL_IS_FALLBACK when preparing a fallback + * connection, that is a connection with max_version set to a + * lower value than the value you're willing to use. Such + * fallback connections are not recommended but are sometimes + * necessary to interoperate with buggy (version-intolerant) + * servers. + * + * \warning You should NOT set this to MBEDTLS_SSL_IS_FALLBACK for + * non-fallback connections! This would appear to work for a + * while, then cause failures when the server is upgraded to + * support a newer TLS version. + * + * \param conf SSL configuration + * \param fallback MBEDTLS_SSL_IS_NOT_FALLBACK or MBEDTLS_SSL_IS_FALLBACK + */ +void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback ); +#endif /* MBEDTLS_SSL_FALLBACK_SCSV && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +/** + * \brief Enable or disable Encrypt-then-MAC + * (Default: MBEDTLS_SSL_ETM_ENABLED) + * + * \note This should always be enabled, it is a security + * improvement, and should not cause any interoperability + * issue (used only if the peer supports it too). + * + * \param conf SSL configuration + * \param etm MBEDTLS_SSL_ETM_ENABLED or MBEDTLS_SSL_ETM_DISABLED + */ +void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm ); +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +/** + * \brief Enable or disable Extended Master Secret negotiation. + * (Default: MBEDTLS_SSL_EXTENDED_MS_ENABLED) + * + * \note This should always be enabled, it is a security fix to the + * protocol, and should not cause any interoperability issue + * (used only if the peer supports it too). + * + * \param conf SSL configuration + * \param ems MBEDTLS_SSL_EXTENDED_MS_ENABLED or MBEDTLS_SSL_EXTENDED_MS_DISABLED + */ +void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems ); +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_ARC4_C) +/** + * \brief Disable or enable support for RC4 + * (Default: MBEDTLS_SSL_ARC4_DISABLED) + * + * \warning Use of RC4 in DTLS/TLS has been prohibited by RFC 7465 + * for security reasons. Use at your own risk. + * + * \note This function is deprecated and will likely be removed in + * a future version of the library. + * RC4 is disabled by default at compile time and needs to be + * actively enabled for use with legacy systems. + * + * \param conf SSL configuration + * \param arc4 MBEDTLS_SSL_ARC4_ENABLED or MBEDTLS_SSL_ARC4_DISABLED + */ +void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 ); +#endif /* MBEDTLS_ARC4_C */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +/** + * \brief Set the maximum fragment length to emit and/or negotiate + * (Default: MBEDTLS_SSL_MAX_CONTENT_LEN, usually 2^14 bytes) + * (Server: set maximum fragment length to emit, + * usually negotiated by the client during handshake + * (Client: set maximum fragment length to emit *and* + * negotiate with the server during handshake) + * + * \param conf SSL configuration + * \param mfl_code Code for maximum fragment length (allowed values: + * MBEDTLS_SSL_MAX_FRAG_LEN_512, MBEDTLS_SSL_MAX_FRAG_LEN_1024, + * MBEDTLS_SSL_MAX_FRAG_LEN_2048, MBEDTLS_SSL_MAX_FRAG_LEN_4096) + * + * \return 0 if successful or MBEDTLS_ERR_SSL_BAD_INPUT_DATA + */ +int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code ); +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +/** + * \brief Activate negotiation of truncated HMAC + * (Default: MBEDTLS_SSL_TRUNC_HMAC_DISABLED) + * + * \param conf SSL configuration + * \param truncate Enable or disable (MBEDTLS_SSL_TRUNC_HMAC_ENABLED or + * MBEDTLS_SSL_TRUNC_HMAC_DISABLED) + */ +void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate ); +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) +/** + * \brief Enable / Disable 1/n-1 record splitting + * (Default: MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED) + * + * \note Only affects SSLv3 and TLS 1.0, not higher versions. + * Does not affect non-CBC ciphersuites in any version. + * + * \param conf SSL configuration + * \param split MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED or + * MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED + */ +void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split ); +#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Enable / Disable session tickets (client only). + * (Default: MBEDTLS_SSL_SESSION_TICKETS_ENABLED.) + * + * \note On server, use \c mbedtls_ssl_conf_session_tickets_cb(). + * + * \param conf SSL configuration + * \param use_tickets Enable or disable (MBEDTLS_SSL_SESSION_TICKETS_ENABLED or + * MBEDTLS_SSL_SESSION_TICKETS_DISABLED) + */ +void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets ); +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +/** + * \brief Enable / Disable renegotiation support for connection when + * initiated by peer + * (Default: MBEDTLS_SSL_RENEGOTIATION_DISABLED) + * + * \warning It is recommended to always disable renegotation unless you + * know you need it and you know what you're doing. In the + * past, there have been several issues associated with + * renegotiation or a poor understanding of its properties. + * + * \note Server-side, enabling renegotiation also makes the server + * susceptible to a resource DoS by a malicious client. + * + * \param conf SSL configuration + * \param renegotiation Enable or disable (MBEDTLS_SSL_RENEGOTIATION_ENABLED or + * MBEDTLS_SSL_RENEGOTIATION_DISABLED) + */ +void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation ); +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/** + * \brief Prevent or allow legacy renegotiation. + * (Default: MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION) + * + * MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION allows connections to + * be established even if the peer does not support + * secure renegotiation, but does not allow renegotiation + * to take place if not secure. + * (Interoperable and secure option) + * + * MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION allows renegotiations + * with non-upgraded peers. Allowing legacy renegotiation + * makes the connection vulnerable to specific man in the + * middle attacks. (See RFC 5746) + * (Most interoperable and least secure option) + * + * MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE breaks off connections + * if peer does not support secure renegotiation. Results + * in interoperability issues with non-upgraded peers + * that do not support renegotiation altogether. + * (Most secure option, interoperability issues) + * + * \param conf SSL configuration + * \param allow_legacy Prevent or allow (SSL_NO_LEGACY_RENEGOTIATION, + * SSL_ALLOW_LEGACY_RENEGOTIATION or + * MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE) + */ +void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +/** + * \brief Enforce renegotiation requests. + * (Default: enforced, max_records = 16) + * + * When we request a renegotiation, the peer can comply or + * ignore the request. This function allows us to decide + * whether to enforce our renegotiation requests by closing + * the connection if the peer doesn't comply. + * + * However, records could already be in transit from the peer + * when the request is emitted. In order to increase + * reliability, we can accept a number of records before the + * expected handshake records. + * + * The optimal value is highly dependent on the specific usage + * scenario. + * + * \note With DTLS and server-initiated renegotiation, the + * HelloRequest is retransmited every time mbedtls_ssl_read() times + * out or receives Application Data, until: + * - max_records records have beens seen, if it is >= 0, or + * - the number of retransmits that would happen during an + * actual handshake has been reached. + * Please remember the request might be lost a few times + * if you consider setting max_records to a really low value. + * + * \warning On client, the grace period can only happen during + * mbedtls_ssl_read(), as opposed to mbedtls_ssl_write() and mbedtls_ssl_renegotiate() + * which always behave as if max_record was 0. The reason is, + * if we receive application data from the server, we need a + * place to write it, which only happens during mbedtls_ssl_read(). + * + * \param conf SSL configuration + * \param max_records Use MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED if you don't want to + * enforce renegotiation, or a non-negative value to enforce + * it but allow for a grace period of max_records records. + */ +void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records ); + +/** + * \brief Set record counter threshold for periodic renegotiation. + * (Default: 2^64 - 256.) + * + * Renegotiation is automatically triggered when a record + * counter (outgoing or ingoing) crosses the defined + * threshold. The default value is meant to prevent the + * connection from being closed when the counter is about to + * reached its maximal value (it is not allowed to wrap). + * + * Lower values can be used to enforce policies such as "keys + * must be refreshed every N packets with cipher X". + * + * \param conf SSL configuration + * \param period The threshold value: a big-endian 64-bit number. + * Set to 2^64 - 1 to disable periodic renegotiation + */ +void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf, + const unsigned char period[8] ); +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/** + * \brief Return the number of data bytes available to read + * + * \param ssl SSL context + * + * \return how many bytes are available in the read buffer + */ +size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl ); + +/** + * \brief Return the result of the certificate verification + * + * \param ssl SSL context + * + * \return 0 if successful, + * -1 if result is not available (eg because the handshake was + * aborted too early), or + * a combination of BADCERT_xxx and BADCRL_xxx flags, see + * x509.h + */ +uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl ); + +/** + * \brief Return the name of the current ciphersuite + * + * \param ssl SSL context + * + * \return a string containing the ciphersuite name + */ +const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl ); + +/** + * \brief Return the current SSL version (SSLv3/TLSv1/etc) + * + * \param ssl SSL context + * + * \return a string containing the SSL version + */ +const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl ); + +/** + * \brief Return the (maximum) number of bytes added by the record + * layer: header + encryption/MAC overhead (inc. padding) + * + * \param ssl SSL context + * + * \return Current maximum record expansion in bytes, or + * MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE if compression is + * enabled, which makes expansion much less predictable + */ +int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl ); + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +/** + * \brief Return the maximum fragment length (payload, in bytes). + * This is the value negotiated with peer if any, + * or the locally configured value. + * + * \note With DTLS, \c mbedtls_ssl_write() will return an error if + * called with a larger length value. + * With TLS, \c mbedtls_ssl_write() will fragment the input if + * necessary and return the number of bytes written; it is up + * to the caller to call \c mbedtls_ssl_write() again in + * order to send the remaining bytes if any. + * + * \param ssl SSL context + * + * \return Current maximum fragment length. + */ +size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl ); +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Return the peer certificate from the current connection + * + * Note: Can be NULL in case no certificate was sent during + * the handshake. Different calls for the same connection can + * return the same or different pointers for the same + * certificate and even a different certificate altogether. + * The peer cert CAN change in a single connection if + * renegotiation is performed. + * + * \param ssl SSL context + * + * \return the current peer certificate + */ +const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Save session in order to resume it later (client-side only) + * Session data is copied to presented session structure. + * + * \warning Currently, peer certificate is lost in the operation. + * + * \param ssl SSL context + * \param session session context + * + * \return 0 if successful, + * MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed, + * MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used server-side or + * arguments are otherwise invalid + * + * \sa mbedtls_ssl_set_session() + */ +int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl, mbedtls_ssl_session *session ); +#endif /* MBEDTLS_SSL_CLI_C */ + +/** + * \brief Perform the SSL handshake + * + * \param ssl SSL context + * + * \return 0 if successful, or + * MBEDTLS_ERR_SSL_WANT_READ or MBEDTLS_ERR_SSL_WANT_WRITE, or + * MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED (see below), or + * a specific SSL error code. + * + * \note If this function returns something other than 0 or + * MBEDTLS_ERR_SSL_WANT_READ/WRITE, then the ssl context + * becomes unusable, and you should either free it or call + * \c mbedtls_ssl_session_reset() on it before re-using it for + * a new connection; the current connection must be closed. + * + * \note If DTLS is in use, then you may choose to handle + * MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED specially for logging + * purposes, as it is an expected return value rather than an + * actual error, but you still need to reset/free the context. + */ +int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl ); + +/** + * \brief Perform a single step of the SSL handshake + * + * \note The state of the context (ssl->state) will be at + * the next state after execution of this function. Do not + * call this function if state is MBEDTLS_SSL_HANDSHAKE_OVER. + * + * \note If this function returns something other than 0 or + * MBEDTLS_ERR_SSL_WANT_READ/WRITE, then the ssl context + * becomes unusable, and you should either free it or call + * \c mbedtls_ssl_session_reset() on it before re-using it for + * a new connection; the current connection must be closed. + * + * \param ssl SSL context + * + * \return 0 if successful, or + * MBEDTLS_ERR_SSL_WANT_READ or MBEDTLS_ERR_SSL_WANT_WRITE, or + * a specific SSL error code. + */ +int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +/** + * \brief Initiate an SSL renegotiation on the running connection. + * Client: perform the renegotiation right now. + * Server: request renegotiation, which will be performed + * during the next call to mbedtls_ssl_read() if honored by + * client. + * + * \param ssl SSL context + * + * \return 0 if successful, or any mbedtls_ssl_handshake() return + * value. + * + * \note If this function returns something other than 0 or + * MBEDTLS_ERR_SSL_WANT_READ/WRITE, then the ssl context + * becomes unusable, and you should either free it or call + * \c mbedtls_ssl_session_reset() on it before re-using it for + * a new connection; the current connection must be closed. + */ +int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl ); +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/** + * \brief Read at most 'len' application data bytes + * + * \param ssl SSL context + * \param buf buffer that will hold the data + * \param len maximum number of bytes to read + * + * \return the number of bytes read, or + * 0 for EOF, or + * MBEDTLS_ERR_SSL_WANT_READ or MBEDTLS_ERR_SSL_WANT_WRITE, or + * MBEDTLS_ERR_SSL_CLIENT_RECONNECT (see below), or + * another negative error code. + * + * \note If this function returns something other than a positive + * value or MBEDTLS_ERR_SSL_WANT_READ/WRITE or + * MBEDTLS_ERR_SSL_CLIENT_RECONNECT, then the ssl context + * becomes unusable, and you should either free it or call + * \c mbedtls_ssl_session_reset() on it before re-using it for + * a new connection; the current connection must be closed. + * + * \note When this function return MBEDTLS_ERR_SSL_CLIENT_RECONNECT + * (which can only happen server-side), it means that a client + * is initiating a new connection using the same source port. + * You can either treat that as a connection close and wait + * for the client to resend a ClientHello, or directly + * continue with \c mbedtls_ssl_handshake() with the same + * context (as it has beeen reset internally). Either way, you + * should make sure this is seen by the application as a new + * connection: application state, if any, should be reset, and + * most importantly the identity of the client must be checked + * again. WARNING: not validating the identity of the client + * again, or not transmitting the new identity to the + * application layer, would allow authentication bypass! + */ +int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len ); + +/** + * \brief Try to write exactly 'len' application data bytes + * + * \warning This function will do partial writes in some cases. If the + * return value is non-negative but less than length, the + * function must be called again with updated arguments: + * buf + ret, len - ret (if ret is the return value) until + * it returns a value equal to the last 'len' argument. + * + * \param ssl SSL context + * \param buf buffer holding the data + * \param len how many bytes must be written + * + * \return the number of bytes actually written (may be less than len), + * or MBEDTLS_ERR_SSL_WANT_WRITE of MBEDTLS_ERR_SSL_WANT_READ, + * or another negative error code. + * + * \note If this function returns something other than a positive + * value or MBEDTLS_ERR_SSL_WANT_READ/WRITE, the ssl context + * becomes unusable, and you should either free it or call + * \c mbedtls_ssl_session_reset() on it before re-using it for + * a new connection; the current connection must be closed. + * + * \note When this function returns MBEDTLS_ERR_SSL_WANT_WRITE/READ, + * it must be called later with the *same* arguments, + * until it returns a positive value. + * + * \note If the requested length is greater than the maximum + * fragment length (either the built-in limit or the one set + * or negotiated with the peer), then: + * - with TLS, less bytes than requested are written. + * - with DTLS, MBEDTLS_ERR_SSL_BAD_INPUT_DATA is returned. + * \c mbedtls_ssl_get_max_frag_len() may be used to query the + * active maximum fragment length. + */ +int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ); + +/** + * \brief Send an alert message + * + * \param ssl SSL context + * \param level The alert level of the message + * (MBEDTLS_SSL_ALERT_LEVEL_WARNING or MBEDTLS_SSL_ALERT_LEVEL_FATAL) + * \param message The alert message (SSL_ALERT_MSG_*) + * + * \return 0 if successful, or a specific SSL error code. + * + * \note If this function returns something other than 0 or + * MBEDTLS_ERR_SSL_WANT_READ/WRITE, then the ssl context + * becomes unusable, and you should either free it or call + * \c mbedtls_ssl_session_reset() on it before re-using it for + * a new connection; the current connection must be closed. + */ +int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl, + unsigned char level, + unsigned char message ); +/** + * \brief Notify the peer that the connection is being closed + * + * \param ssl SSL context + * + * \return 0 if successful, or a specific SSL error code. + * + * \note If this function returns something other than 0 or + * MBEDTLS_ERR_SSL_WANT_READ/WRITE, then the ssl context + * becomes unusable, and you should either free it or call + * \c mbedtls_ssl_session_reset() on it before re-using it for + * a new connection; the current connection must be closed. + */ +int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl ); + +/** + * \brief Free referenced items in an SSL context and clear memory + * + * \param ssl SSL context + */ +void mbedtls_ssl_free( mbedtls_ssl_context *ssl ); + +/** + * \brief Initialize an SSL configuration context + * Just makes the context ready for + * mbedtls_ssl_config_defaults() or mbedtls_ssl_config_free(). + * + * \note You need to call mbedtls_ssl_config_defaults() unless you + * manually set all of the relevent fields yourself. + * + * \param conf SSL configuration context + */ +void mbedtls_ssl_config_init( mbedtls_ssl_config *conf ); + +/** + * \brief Load reasonnable default SSL configuration values. + * (You need to call mbedtls_ssl_config_init() first.) + * + * \param conf SSL configuration context + * \param endpoint MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER + * \param transport MBEDTLS_SSL_TRANSPORT_STREAM for TLS, or + * MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS + * \param preset a MBEDTLS_SSL_PRESET_XXX value + * (currently unused). + * + * \note See \c mbedtls_ssl_conf_transport() for notes on DTLS. + * + * \return 0 if successful, or + * MBEDTLS_ERR_XXX_ALLOC_FAILED on memory allocation error. + */ +int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, + int endpoint, int transport, int preset ); + +/** + * \brief Free an SSL configuration context + * + * \param conf SSL configuration context + */ +void mbedtls_ssl_config_free( mbedtls_ssl_config *conf ); + +/** + * \brief Initialize SSL session structure + * + * \param session SSL session + */ +void mbedtls_ssl_session_init( mbedtls_ssl_session *session ); + +/** + * \brief Free referenced items in an SSL session including the + * peer certificate and clear memory + * + * \param session SSL session + */ +void mbedtls_ssl_session_free( mbedtls_ssl_session *session ); + +#ifdef __cplusplus +} +#endif + +#endif /* ssl.h */ diff --git a/include/mbedtls/ssl_cache.h b/include/mbedtls/ssl_cache.h new file mode 100644 index 0000000..3734bb7 --- /dev/null +++ b/include/mbedtls/ssl_cache.h @@ -0,0 +1,143 @@ +/** + * \file ssl_cache.h + * + * \brief SSL session cache implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SSL_CACHE_H +#define MBEDTLS_SSL_CACHE_H + +#include "ssl.h" + +#if defined(MBEDTLS_THREADING_C) +#include "threading.h" +#endif + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT) +#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /*!< 1 day */ +#endif + +#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES) +#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /*!< Maximum entries in cache */ +#endif + +/* \} name SECTION: Module settings */ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct mbedtls_ssl_cache_context mbedtls_ssl_cache_context; +typedef struct mbedtls_ssl_cache_entry mbedtls_ssl_cache_entry; + +/** + * \brief This structure is used for storing cache entries + */ +struct mbedtls_ssl_cache_entry +{ +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t timestamp; /*!< entry timestamp */ +#endif + mbedtls_ssl_session session; /*!< entry session */ +#if defined(MBEDTLS_X509_CRT_PARSE_C) + mbedtls_x509_buf peer_cert; /*!< entry peer_cert */ +#endif + mbedtls_ssl_cache_entry *next; /*!< chain pointer */ +}; + +/** + * \brief Cache context + */ +struct mbedtls_ssl_cache_context +{ + mbedtls_ssl_cache_entry *chain; /*!< start of the chain */ + int timeout; /*!< cache entry timeout */ + int max_entries; /*!< maximum entries */ +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; /*!< mutex */ +#endif +}; + +/** + * \brief Initialize an SSL cache context + * + * \param cache SSL cache context + */ +void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache ); + +/** + * \brief Cache get callback implementation + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param data SSL cache context + * \param session session to retrieve entry for + */ +int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session ); + +/** + * \brief Cache set callback implementation + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param data SSL cache context + * \param session session to store entry for + */ +int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session ); + +#if defined(MBEDTLS_HAVE_TIME) +/** + * \brief Set the cache timeout + * (Default: MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT (1 day)) + * + * A timeout of 0 indicates no timeout. + * + * \param cache SSL cache context + * \param timeout cache entry timeout in seconds + */ +void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout ); +#endif /* MBEDTLS_HAVE_TIME */ + +/** + * \brief Set the maximum number of cache entries + * (Default: MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES (50)) + * + * \param cache SSL cache context + * \param max cache entry maximum + */ +void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max ); + +/** + * \brief Free referenced items in a cache context and clear memory + * + * \param cache SSL cache context + */ +void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache ); + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_cache.h */ diff --git a/include/mbedtls/ssl_ciphersuites.h b/include/mbedtls/ssl_ciphersuites.h new file mode 100644 index 0000000..deaaa37 --- /dev/null +++ b/include/mbedtls/ssl_ciphersuites.h @@ -0,0 +1,321 @@ +/** + * \file ssl_ciphersuites.h + * + * \brief SSL Ciphersuites for mbed TLS + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SSL_CIPHERSUITES_H +#define MBEDTLS_SSL_CIPHERSUITES_H + +#include "pk.h" +#include "cipher.h" +#include "md.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Supported ciphersuites (Official IANA names) + */ +#define MBEDTLS_TLS_RSA_WITH_NULL_MD5 0x01 /**< Weak! */ +#define MBEDTLS_TLS_RSA_WITH_NULL_SHA 0x02 /**< Weak! */ + +#define MBEDTLS_TLS_RSA_WITH_RC4_128_MD5 0x04 +#define MBEDTLS_TLS_RSA_WITH_RC4_128_SHA 0x05 +#define MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA 0x09 /**< Weak! Not in TLS 1.2 */ + +#define MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x0A + +#define MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA 0x15 /**< Weak! Not in TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA 0x16 + +#define MBEDTLS_TLS_PSK_WITH_NULL_SHA 0x2C /**< Weak! */ +#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA 0x2D /**< Weak! */ +#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA 0x2E /**< Weak! */ +#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA 0x2F + +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA 0x33 +#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA 0x35 +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA 0x39 + +#define MBEDTLS_TLS_RSA_WITH_NULL_SHA256 0x3B /**< Weak! */ +#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 0x3C /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 0x3D /**< TLS 1.2 */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 0x41 +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 0x45 + +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 0x67 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 0x6B /**< TLS 1.2 */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 0x84 +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 0x88 + +#define MBEDTLS_TLS_PSK_WITH_RC4_128_SHA 0x8A +#define MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA 0x8B +#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA 0x8C +#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA 0x8D + +#define MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA 0x8E +#define MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA 0x8F +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA 0x90 +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA 0x91 + +#define MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA 0x92 +#define MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA 0x93 +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA 0x94 +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA 0x95 + +#define MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 0x9C /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 0x9D /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 0x9E /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 0x9F /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 0xA8 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 0xA9 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 0xAA /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 0xAB /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 0xAC /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 0xAD /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 0xAE +#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 0xAF +#define MBEDTLS_TLS_PSK_WITH_NULL_SHA256 0xB0 /**< Weak! */ +#define MBEDTLS_TLS_PSK_WITH_NULL_SHA384 0xB1 /**< Weak! */ + +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 0xB2 +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 0xB3 +#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 0xB4 /**< Weak! */ +#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 0xB5 /**< Weak! */ + +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 0xB6 +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 0xB7 +#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 0xB8 /**< Weak! */ +#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 0xB9 /**< Weak! */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBA /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBE /**< TLS 1.2 */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC0 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC4 /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA 0xC001 /**< Weak! */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA 0xC002 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA 0xC003 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA 0xC004 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA 0xC005 /**< Not in SSL3! */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA 0xC006 /**< Weak! */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA 0xC007 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA 0xC008 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 0xC009 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 0xC00A /**< Not in SSL3! */ + +#define MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA 0xC00B /**< Weak! */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA 0xC00C /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA 0xC00D /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA 0xC00E /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA 0xC00F /**< Not in SSL3! */ + +#define MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA 0xC010 /**< Weak! */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA 0xC011 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA 0xC012 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 0xC013 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 0xC014 /**< Not in SSL3! */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 0xC023 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 0xC024 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 0xC025 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 0xC026 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 0xC027 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 0xC028 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 0xC029 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 0xC02A /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 0xC02B /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 0xC02C /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 0xC02D /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 0xC02E /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 0xC02F /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 0xC030 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 0xC031 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 0xC032 /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA 0xC033 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA 0xC034 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA 0xC035 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA 0xC036 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 0xC037 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 0xC038 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA 0xC039 /**< Weak! No SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 0xC03A /**< Weak! No SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 0xC03B /**< Weak! No SSL3! */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC072 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC073 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC074 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC075 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xC076 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 0xC077 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xC078 /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 0xC079 /**< Not in SSL3! */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC07A /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC07B /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC07C /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC07D /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC086 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC087 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC088 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC089 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC08A /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC08B /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC08C /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC08D /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC08E /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC08F /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC090 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC091 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC092 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC093 /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC094 +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC095 +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC096 +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC097 +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC098 +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC099 +#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC09A /**< Not in SSL3! */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC09B /**< Not in SSL3! */ + +#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM 0xC09C /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM 0xC09D /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM 0xC09E /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM 0xC09F /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8 0xC0A0 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8 0xC0A1 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8 0xC0A2 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8 0xC0A3 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM 0xC0A4 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM 0xC0A5 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM 0xC0A6 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM 0xC0A7 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8 0xC0A8 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8 0xC0A9 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8 0xC0AA /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8 0xC0AB /**< TLS 1.2 */ +/* The last two are named with PSK_DHE in the RFC, which looks like a typo */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM 0xC0AC /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM 0xC0AD /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 0xC0AE /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 0xC0AF /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8 0xC0FF /**< experimental */ + +/* Reminder: update mbedtls_ssl_premaster_secret when adding a new key exchange. + * Reminder: update MBEDTLS_KEY_EXCHANGE__xxx below + */ +typedef enum { + MBEDTLS_KEY_EXCHANGE_NONE = 0, + MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_KEY_EXCHANGE_ECJPAKE, +} mbedtls_key_exchange_type_t; + +/* Key exchanges using a certificate */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +#define MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED +#endif + +/* Key exchanges using a PSK */ +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +#define MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED +#endif + +/* Key exchanges using a ECDHE */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +#define MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED +#endif + +typedef struct mbedtls_ssl_ciphersuite_t mbedtls_ssl_ciphersuite_t; + +#define MBEDTLS_CIPHERSUITE_WEAK 0x01 /**< Weak ciphersuite flag */ +#define MBEDTLS_CIPHERSUITE_SHORT_TAG 0x02 /**< Short authentication tag, + eg for CCM_8 */ +#define MBEDTLS_CIPHERSUITE_NODTLS 0x04 /**< Can't be used with DTLS */ + +/** + * \brief This structure is used for storing ciphersuite information + */ +struct mbedtls_ssl_ciphersuite_t +{ + int id; + const char * name; + + mbedtls_cipher_type_t cipher; + mbedtls_md_type_t mac; + mbedtls_key_exchange_type_t key_exchange; + + int min_major_ver; + int min_minor_ver; + int max_major_ver; + int max_minor_ver; + + unsigned char flags; +}; + +const int *mbedtls_ssl_list_ciphersuites( void ); + +const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string( const char *ciphersuite_name ); +const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id( int ciphersuite_id ); + +#if defined(MBEDTLS_PK_C) +mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg( const mbedtls_ssl_ciphersuite_t *info ); +#endif + +int mbedtls_ssl_ciphersuite_uses_ec( const mbedtls_ssl_ciphersuite_t *info ); +int mbedtls_ssl_ciphersuite_uses_psk( const mbedtls_ssl_ciphersuite_t *info ); + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_ciphersuites.h */ diff --git a/include/mbedtls/ssl_cookie.h b/include/mbedtls/ssl_cookie.h new file mode 100644 index 0000000..037e1c3 --- /dev/null +++ b/include/mbedtls/ssl_cookie.h @@ -0,0 +1,108 @@ +/** + * \file ssl_cookie.h + * + * \brief DTLS cookie callbacks implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SSL_COOKIE_H +#define MBEDTLS_SSL_COOKIE_H + +#include "ssl.h" + +#if defined(MBEDTLS_THREADING_C) +#include "threading.h" +#endif + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in config.h or define them on the compiler command line. + * \{ + */ +#ifndef MBEDTLS_SSL_COOKIE_TIMEOUT +#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */ +#endif + +/* \} name SECTION: Module settings */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Context for the default cookie functions. + */ +typedef struct +{ + mbedtls_md_context_t hmac_ctx; /*!< context for the HMAC portion */ +#if !defined(MBEDTLS_HAVE_TIME) + unsigned long serial; /*!< serial number for expiration */ +#endif + unsigned long timeout; /*!< timeout delay, in seconds if HAVE_TIME, + or in number of tickets issued */ + +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; +#endif +} mbedtls_ssl_cookie_ctx; + +/** + * \brief Initialize cookie context + */ +void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx ); + +/** + * \brief Setup cookie context (generate keys) + */ +int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +/** + * \brief Set expiration delay for cookies + * (Default MBEDTLS_SSL_COOKIE_TIMEOUT) + * + * \param ctx Cookie contex + * \param delay Delay, in seconds if HAVE_TIME, or in number of cookies + * issued in the meantime. + * 0 to disable expiration (NOT recommended) + */ +void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay ); + +/** + * \brief Free cookie context + */ +void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx ); + +/** + * \brief Generate cookie, see \c mbedtls_ssl_cookie_write_t + */ +mbedtls_ssl_cookie_write_t mbedtls_ssl_cookie_write; + +/** + * \brief Verify cookie, see \c mbedtls_ssl_cookie_write_t + */ +mbedtls_ssl_cookie_check_t mbedtls_ssl_cookie_check; + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_cookie.h */ diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h new file mode 100644 index 0000000..668c0f5 --- /dev/null +++ b/include/mbedtls/ssl_internal.h @@ -0,0 +1,500 @@ +/** + * \file ssl_ticket.h + * + * \brief Internal functions shared by the SSL modules + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SSL_INTERNAL_H +#define MBEDTLS_SSL_INTERNAL_H + +#include "ssl.h" + +#if defined(MBEDTLS_MD5_C) +#include "md5.h" +#endif + +#if defined(MBEDTLS_SHA1_C) +#include "sha1.h" +#endif + +#if defined(MBEDTLS_SHA256_C) +#include "sha256.h" +#endif + +#if defined(MBEDTLS_SHA512_C) +#include "sha512.h" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +#include "ecjpake.h" +#endif + +#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +/* Determine minimum supported version */ +#define MBEDTLS_SSL_MIN_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3 + +#if defined(MBEDTLS_SSL_PROTO_SSL3) +#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_0 +#else +#if defined(MBEDTLS_SSL_PROTO_TLS1) +#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1 +#else +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) +#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_2 +#else +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_3 +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */ +#endif /* MBEDTLS_SSL_PROTO_TLS1 */ +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + +/* Determine maximum supported version */ +#define MBEDTLS_SSL_MAX_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3 + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_3 +#else +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) +#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_2 +#else +#if defined(MBEDTLS_SSL_PROTO_TLS1) +#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1 +#else +#if defined(MBEDTLS_SSL_PROTO_SSL3) +#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_0 +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ +#endif /* MBEDTLS_SSL_PROTO_TLS1 */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +#define MBEDTLS_SSL_INITIAL_HANDSHAKE 0 +#define MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS 1 /* In progress */ +#define MBEDTLS_SSL_RENEGOTIATION_DONE 2 /* Done or aborted */ +#define MBEDTLS_SSL_RENEGOTIATION_PENDING 3 /* Requested (server only) */ + +/* + * DTLS retransmission states, see RFC 6347 4.2.4 + * + * The SENDING state is merged in PREPARING for initial sends, + * but is distinct for resends. + * + * Note: initial state is wrong for server, but is not used anyway. + */ +#define MBEDTLS_SSL_RETRANS_PREPARING 0 +#define MBEDTLS_SSL_RETRANS_SENDING 1 +#define MBEDTLS_SSL_RETRANS_WAITING 2 +#define MBEDTLS_SSL_RETRANS_FINISHED 3 + +/* + * Allow extra bytes for record, authentication and encryption overhead: + * counter (8) + header (5) + IV(16) + MAC (16-48) + padding (0-256) + * and allow for a maximum of 1024 of compression expansion if + * enabled. + */ +#if defined(MBEDTLS_ZLIB_SUPPORT) +#define MBEDTLS_SSL_COMPRESSION_ADD 1024 +#else +#define MBEDTLS_SSL_COMPRESSION_ADD 0 +#endif + +#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_MODE_CBC) +/* Ciphersuites using HMAC */ +#if defined(MBEDTLS_SHA512_C) +#define MBEDTLS_SSL_MAC_ADD 48 /* SHA-384 used for HMAC */ +#elif defined(MBEDTLS_SHA256_C) +#define MBEDTLS_SSL_MAC_ADD 32 /* SHA-256 used for HMAC */ +#else +#define MBEDTLS_SSL_MAC_ADD 20 /* SHA-1 used for HMAC */ +#endif +#else +/* AEAD ciphersuites: GCM and CCM use a 128 bits tag */ +#define MBEDTLS_SSL_MAC_ADD 16 +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#define MBEDTLS_SSL_PADDING_ADD 256 +#else +#define MBEDTLS_SSL_PADDING_ADD 0 +#endif + +#define MBEDTLS_SSL_BUFFER_LEN ( MBEDTLS_SSL_MAX_CONTENT_LEN \ + + MBEDTLS_SSL_COMPRESSION_ADD \ + + 29 /* counter + header + IV */ \ + + MBEDTLS_SSL_MAC_ADD \ + + MBEDTLS_SSL_PADDING_ADD \ + ) + +/* + * TLS extension flags (for extensions with outgoing ServerHello content + * that need it (e.g. for RENEGOTIATION_INFO the server already knows because + * of state of the renegotiation flag, so no indicator is required) + */ +#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT (1 << 0) +#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK (1 << 1) + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * This structure contains the parameters only needed during handshake. + */ +struct mbedtls_ssl_handshake_params +{ + /* + * Handshake specific crypto variables + */ + int sig_alg; /*!< Hash algorithm for signature */ + int verify_sig_alg; /*!< Signature algorithm for verify */ +#if defined(MBEDTLS_DHM_C) + mbedtls_dhm_context dhm_ctx; /*!< DHM key exchange */ +#endif +#if defined(MBEDTLS_ECDH_C) + mbedtls_ecdh_context ecdh_ctx; /*!< ECDH key exchange */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + mbedtls_ecjpake_context ecjpake_ctx; /*!< EC J-PAKE key exchange */ +#if defined(MBEDTLS_SSL_CLI_C) + unsigned char *ecjpake_cache; /*!< Cache for ClientHello ext */ + size_t ecjpake_cache_len; /*!< Length of cached data */ +#endif +#endif +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + const mbedtls_ecp_curve_info **curves; /*!< Supported elliptic curves */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + unsigned char *psk; /*!< PSK from the callback */ + size_t psk_len; /*!< Length of PSK from callback */ +#endif +#if defined(MBEDTLS_X509_CRT_PARSE_C) + mbedtls_ssl_key_cert *key_cert; /*!< chosen key/cert pair (server) */ +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + int sni_authmode; /*!< authmode from SNI callback */ + mbedtls_ssl_key_cert *sni_key_cert; /*!< key/cert list from SNI */ + mbedtls_x509_crt *sni_ca_chain; /*!< trusted CAs from SNI callback */ + mbedtls_x509_crl *sni_ca_crl; /*!< trusted CAs CRLs from SNI */ +#endif +#endif /* MBEDTLS_X509_CRT_PARSE_C */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + unsigned int out_msg_seq; /*!< Outgoing handshake sequence number */ + unsigned int in_msg_seq; /*!< Incoming handshake sequence number */ + + unsigned char *verify_cookie; /*!< Cli: HelloVerifyRequest cookie + Srv: unused */ + unsigned char verify_cookie_len; /*!< Cli: cookie length + Srv: flag for sending a cookie */ + + unsigned char *hs_msg; /*!< Reassembled handshake message */ + + uint32_t retransmit_timeout; /*!< Current value of timeout */ + unsigned char retransmit_state; /*!< Retransmission state */ + mbedtls_ssl_flight_item *flight; /*!< Current outgoing flight */ + mbedtls_ssl_flight_item *cur_msg; /*!< Current message in flight */ + unsigned int in_flight_start_seq; /*!< Minimum message sequence in the + flight being received */ + mbedtls_ssl_transform *alt_transform_out; /*!< Alternative transform for + resending messages */ + unsigned char alt_out_ctr[8]; /*!< Alternative record epoch/counter + for resending messages */ +#endif + + /* + * Checksum contexts + */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + mbedtls_md5_context fin_md5; + mbedtls_sha1_context fin_sha1; +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) + mbedtls_sha256_context fin_sha256; +#endif +#if defined(MBEDTLS_SHA512_C) + mbedtls_sha512_context fin_sha512; +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + + void (*update_checksum)(mbedtls_ssl_context *, const unsigned char *, size_t); + void (*calc_verify)(mbedtls_ssl_context *, unsigned char *); + void (*calc_finished)(mbedtls_ssl_context *, unsigned char *, int); + int (*tls_prf)(const unsigned char *, size_t, const char *, + const unsigned char *, size_t, + unsigned char *, size_t); + + size_t pmslen; /*!< premaster length */ + + unsigned char randbytes[64]; /*!< random bytes */ + unsigned char premaster[MBEDTLS_PREMASTER_SIZE]; + /*!< premaster secret */ + + int resume; /*!< session resume indicator*/ + int max_major_ver; /*!< max. major version client*/ + int max_minor_ver; /*!< max. minor version client*/ + int cli_exts; /*!< client extension presence*/ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + int new_session_ticket; /*!< use NewSessionTicket? */ +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + int extended_ms; /*!< use Extended Master Secret? */ +#endif +}; + +/* + * This structure contains a full set of runtime transform parameters + * either in negotiation or active. + */ +struct mbedtls_ssl_transform +{ + /* + * Session specific crypto layer + */ + const mbedtls_ssl_ciphersuite_t *ciphersuite_info; + /*!< Chosen cipersuite_info */ + unsigned int keylen; /*!< symmetric key length (bytes) */ + size_t minlen; /*!< min. ciphertext length */ + size_t ivlen; /*!< IV length */ + size_t fixed_ivlen; /*!< Fixed part of IV (AEAD) */ + size_t maclen; /*!< MAC length */ + + unsigned char iv_enc[16]; /*!< IV (encryption) */ + unsigned char iv_dec[16]; /*!< IV (decryption) */ + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + /* Needed only for SSL v3.0 secret */ + unsigned char mac_enc[20]; /*!< SSL v3.0 secret (enc) */ + unsigned char mac_dec[20]; /*!< SSL v3.0 secret (dec) */ +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + + mbedtls_md_context_t md_ctx_enc; /*!< MAC (encryption) */ + mbedtls_md_context_t md_ctx_dec; /*!< MAC (decryption) */ + + mbedtls_cipher_context_t cipher_ctx_enc; /*!< encryption context */ + mbedtls_cipher_context_t cipher_ctx_dec; /*!< decryption context */ + + /* + * Session specific compression layer + */ +#if defined(MBEDTLS_ZLIB_SUPPORT) + z_stream ctx_deflate; /*!< compression context */ + z_stream ctx_inflate; /*!< decompression context */ +#endif +}; + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/* + * List of certificate + private key pairs + */ +struct mbedtls_ssl_key_cert +{ + mbedtls_x509_crt *cert; /*!< cert */ + mbedtls_pk_context *key; /*!< private key */ + mbedtls_ssl_key_cert *next; /*!< next key/cert pair */ +}; +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +/* + * List of handshake messages kept around for resending + */ +struct mbedtls_ssl_flight_item +{ + unsigned char *p; /*!< message, including handshake headers */ + size_t len; /*!< length of p */ + unsigned char type; /*!< type of the message: handshake or CCS */ + mbedtls_ssl_flight_item *next; /*!< next handshake message(s) */ +}; +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + +/** + * \brief Free referenced items in an SSL transform context and clear + * memory + * + * \param transform SSL transform context + */ +void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform ); + +/** + * \brief Free referenced items in an SSL handshake context and clear + * memory + * + * \param handshake SSL handshake context + */ +void mbedtls_ssl_handshake_free( mbedtls_ssl_handshake_params *handshake ); + +int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl ); +void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl ); + +int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl ); + +void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ); + +int mbedtls_ssl_read_record_layer( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl ); +void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl ); + +int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want ); + +int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl ); + +int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ); + +int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl ); + +int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ); + +void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl, + const mbedtls_ssl_ciphersuite_t *ciphersuite_info ); + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) +int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex ); +#endif + +#if defined(MBEDTLS_PK_C) +unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk ); +mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig ); +#endif + +mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash ); +unsigned char mbedtls_ssl_hash_from_md_alg( int md ); +int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md ); + +#if defined(MBEDTLS_ECP_C) +int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id ); +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl, + mbedtls_md_type_t md ); +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +static inline mbedtls_pk_context *mbedtls_ssl_own_key( mbedtls_ssl_context *ssl ) +{ + mbedtls_ssl_key_cert *key_cert; + + if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL ) + key_cert = ssl->handshake->key_cert; + else + key_cert = ssl->conf->key_cert; + + return( key_cert == NULL ? NULL : key_cert->key ); +} + +static inline mbedtls_x509_crt *mbedtls_ssl_own_cert( mbedtls_ssl_context *ssl ) +{ + mbedtls_ssl_key_cert *key_cert; + + if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL ) + key_cert = ssl->handshake->key_cert; + else + key_cert = ssl->conf->key_cert; + + return( key_cert == NULL ? NULL : key_cert->cert ); +} + +/* + * Check usage of a certificate wrt extensions: + * keyUsage, extendedKeyUsage (later), and nSCertType (later). + * + * Warning: cert_endpoint is the endpoint of the cert (ie, of our peer when we + * check a cert we received from them)! + * + * Return 0 if everything is OK, -1 if not. + */ +int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, + const mbedtls_ssl_ciphersuite_t *ciphersuite, + int cert_endpoint, + uint32_t *flags ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +void mbedtls_ssl_write_version( int major, int minor, int transport, + unsigned char ver[2] ); +void mbedtls_ssl_read_version( int *major, int *minor, int transport, + const unsigned char ver[2] ); + +static inline size_t mbedtls_ssl_hdr_len( const mbedtls_ssl_context *ssl ) +{ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + return( 13 ); +#else + ((void) ssl); +#endif + return( 5 ); +} + +static inline size_t mbedtls_ssl_hs_hdr_len( const mbedtls_ssl_context *ssl ) +{ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + return( 12 ); +#else + ((void) ssl); +#endif + return( 4 ); +} + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl ); +void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl ); +int mbedtls_ssl_resend( mbedtls_ssl_context *ssl ); +#endif + +/* Visible for testing purposes only */ +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context *ssl ); +void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl ); +#endif + +/* constant-time buffer comparison */ +static inline int mbedtls_ssl_safer_memcmp( const void *a, const void *b, size_t n ) +{ + size_t i; + const unsigned char *A = (const unsigned char *) a; + const unsigned char *B = (const unsigned char *) b; + unsigned char diff = 0; + + for( i = 0; i < n; i++ ) + diff |= A[i] ^ B[i]; + + return( diff ); +} + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_internal.h */ diff --git a/include/mbedtls/ssl_ticket.h b/include/mbedtls/ssl_ticket.h new file mode 100644 index 0000000..7c6bc61 --- /dev/null +++ b/include/mbedtls/ssl_ticket.h @@ -0,0 +1,135 @@ +/** + * \file ssl_ticket.h + * + * \brief TLS server ticket callbacks implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_SSL_TICKET_H +#define MBEDTLS_SSL_TICKET_H + +/* + * This implementation of the session ticket callbacks includes key + * management, rotating the keys periodically in order to preserve forward + * secrecy, when MBEDTLS_HAVE_TIME is defined. + */ + +#include "ssl.h" +#include "cipher.h" + +#if defined(MBEDTLS_THREADING_C) +#include "threading.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Information for session ticket protection + */ +typedef struct +{ + unsigned char name[4]; /*!< random key identifier */ + uint32_t generation_time; /*!< key generation timestamp (seconds) */ + mbedtls_cipher_context_t ctx; /*!< context for auth enc/decryption */ +} +mbedtls_ssl_ticket_key; + +/** + * \brief Context for session ticket handling functions + */ +typedef struct +{ + mbedtls_ssl_ticket_key keys[2]; /*!< ticket protection keys */ + unsigned char active; /*!< index of the currently active key */ + + uint32_t ticket_lifetime; /*!< lifetime of tickets in seconds */ + + /** Callback for getting (pseudo-)random numbers */ + int (*f_rng)(void *, unsigned char *, size_t); + void *p_rng; /*!< context for the RNG function */ + +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; +#endif +} +mbedtls_ssl_ticket_context; + +/** + * \brief Initialize a ticket context. + * (Just make it ready for mbedtls_ssl_ticket_setup() + * or mbedtls_ssl_ticket_free().) + * + * \param ctx Context to be initialized + */ +void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx ); + +/** + * \brief Prepare context to be actually used + * + * \param ctx Context to be set up + * \param f_rng RNG callback function + * \param p_rng RNG callback context + * \param cipher AEAD cipher to use for ticket protection. + * Recommended value: MBEDTLS_CIPHER_AES_256_GCM. + * \param lifetime Tickets lifetime in seconds + * Recommended value: 86400 (one day). + * + * \note It is highly recommended to select a cipher that is at + * least as strong as the the strongest ciphersuite + * supported. Usually that means a 256-bit key. + * + * \note The lifetime of the keys is twice the lifetime of tickets. + * It is recommended to pick a reasonnable lifetime so as not + * to negate the benefits of forward secrecy. + * + * \return 0 if successful, + * or a specific MBEDTLS_ERR_XXX error code + */ +int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, + mbedtls_cipher_type_t cipher, + uint32_t lifetime ); + +/** + * \brief Implementation of the ticket write callback + * + * \note See \c mbedlts_ssl_ticket_write_t for description + */ +mbedtls_ssl_ticket_write_t mbedtls_ssl_ticket_write; + +/** + * \brief Implementation of the ticket parse callback + * + * \note See \c mbedlts_ssl_ticket_parse_t for description + */ +mbedtls_ssl_ticket_parse_t mbedtls_ssl_ticket_parse; + +/** + * \brief Free a context's content and zeroize it. + * + * \param ctx Context to be cleaned up + */ +void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx ); + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_ticket.h */ diff --git a/include/mbedtls/threading.h b/include/mbedtls/threading.h new file mode 100644 index 0000000..b0c34ec --- /dev/null +++ b/include/mbedtls/threading.h @@ -0,0 +1,106 @@ +/** + * \file threading.h + * + * \brief Threading abstraction layer + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_THREADING_H +#define MBEDTLS_THREADING_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE -0x001A /**< The selected feature is not available. */ +#define MBEDTLS_ERR_THREADING_BAD_INPUT_DATA -0x001C /**< Bad input parameters to function. */ +#define MBEDTLS_ERR_THREADING_MUTEX_ERROR -0x001E /**< Locking / unlocking / free failed with error code. */ + +#if defined(MBEDTLS_THREADING_PTHREAD) +#include +typedef struct +{ + pthread_mutex_t mutex; + char is_valid; +} mbedtls_threading_mutex_t; +#endif + +#if defined(MBEDTLS_THREADING_ALT) +/* You should define the mbedtls_threading_mutex_t type in your header */ +#include "threading_alt.h" + +/** + * \brief Set your alternate threading implementation function + * pointers and initialize global mutexes. If used, this + * function must be called once in the main thread before any + * other mbed TLS function is called, and + * mbedtls_threading_free_alt() must be called once in the main + * thread after all other mbed TLS functions. + * + * \note mutex_init() and mutex_free() don't return a status code. + * If mutex_init() fails, it should leave its argument (the + * mutex) in a state such that mutex_lock() will fail when + * called with this argument. + * + * \param mutex_init the init function implementation + * \param mutex_free the free function implementation + * \param mutex_lock the lock function implementation + * \param mutex_unlock the unlock function implementation + */ +void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ), + void (*mutex_free)( mbedtls_threading_mutex_t * ), + int (*mutex_lock)( mbedtls_threading_mutex_t * ), + int (*mutex_unlock)( mbedtls_threading_mutex_t * ) ); + +/** + * \brief Free global mutexes. + */ +void mbedtls_threading_free_alt( void ); +#endif /* MBEDTLS_THREADING_ALT */ + +#if defined(MBEDTLS_THREADING_C) +/* + * The function pointers for mutex_init, mutex_free, mutex_ and mutex_unlock + * + * All these functions are expected to work or the result will be undefined. + */ +extern void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t *mutex ); +extern void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t *mutex ); +extern int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t *mutex ); +extern int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t *mutex ); + +/* + * Global mutexes + */ +extern mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex; +extern mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex; +#endif /* MBEDTLS_THREADING_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* threading.h */ diff --git a/include/mbedtls/timing.h b/include/mbedtls/timing.h new file mode 100644 index 0000000..ae7a713 --- /dev/null +++ b/include/mbedtls/timing.h @@ -0,0 +1,141 @@ +/** + * \file timing.h + * + * \brief Portable interface to the CPU cycle counter + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_TIMING_H +#define MBEDTLS_TIMING_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if !defined(MBEDTLS_TIMING_ALT) +// Regular implementation +// + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief timer structure + */ +struct mbedtls_timing_hr_time +{ + unsigned char opaque[32]; +}; + +/** + * \brief Context for mbedtls_timing_set/get_delay() + */ +typedef struct +{ + struct mbedtls_timing_hr_time timer; + uint32_t int_ms; + uint32_t fin_ms; +} mbedtls_timing_delay_context; + +extern volatile int mbedtls_timing_alarmed; + +/** + * \brief Return the CPU cycle counter value + * + * \warning This is only a best effort! Do not rely on this! + * In particular, it is known to be unreliable on virtual + * machines. + */ +unsigned long mbedtls_timing_hardclock( void ); + +/** + * \brief Return the elapsed time in milliseconds + * + * \param val points to a timer structure + * \param reset if set to 1, the timer is restarted + */ +unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset ); + +/** + * \brief Setup an alarm clock + * + * \param seconds delay before the "mbedtls_timing_alarmed" flag is set + * + * \warning Only one alarm at a time is supported. In a threaded + * context, this means one for the whole process, not one per + * thread. + */ +void mbedtls_set_alarm( int seconds ); + +/** + * \brief Set a pair of delays to watch + * (See \c mbedtls_timing_get_delay().) + * + * \param data Pointer to timing data + * Must point to a valid \c mbedtls_timing_delay_context struct. + * \param int_ms First (intermediate) delay in milliseconds. + * \param fin_ms Second (final) delay in milliseconds. + * Pass 0 to cancel the current delay. + */ +void mbedtls_timing_set_delay( void *data, uint32_t int_ms, uint32_t fin_ms ); + +/** + * \brief Get the status of delays + * (Memory helper: number of delays passed.) + * + * \param data Pointer to timing data + * Must point to a valid \c mbedtls_timing_delay_context struct. + * + * \return -1 if cancelled (fin_ms = 0) + * 0 if none of the delays are passed, + * 1 if only the intermediate delay is passed, + * 2 if the final delay is passed. + */ +int mbedtls_timing_get_delay( void *data ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_TIMING_ALT */ +#include "timing_alt.h" +#endif /* MBEDTLS_TIMING_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_timing_self_test( int verbose ); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* timing.h */ diff --git a/include/mbedtls/version.h b/include/mbedtls/version.h new file mode 100644 index 0000000..6c0cc9b --- /dev/null +++ b/include/mbedtls/version.h @@ -0,0 +1,111 @@ +/** + * \file version.h + * + * \brief Run-time version information + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * This set of compile-time defines and run-time variables can be used to + * determine the version number of the mbed TLS library used. + */ +#ifndef MBEDTLS_VERSION_H +#define MBEDTLS_VERSION_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +/** + * The version number x.y.z is split into three parts. + * Major, Minor, Patchlevel + */ +#define MBEDTLS_VERSION_MAJOR 2 +#define MBEDTLS_VERSION_MINOR 4 +#define MBEDTLS_VERSION_PATCH 0 + +/** + * The single version number has the following structure: + * MMNNPP00 + * Major version | Minor version | Patch version + */ +#define MBEDTLS_VERSION_NUMBER 0x02040000 +#define MBEDTLS_VERSION_STRING "2.4.0" +#define MBEDTLS_VERSION_STRING_FULL "mbed TLS 2.4.0" + +#if defined(MBEDTLS_VERSION_C) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Get the version number. + * + * \return The constructed version number in the format + * MMNNPP00 (Major, Minor, Patch). + */ +unsigned int mbedtls_version_get_number( void ); + +/** + * Get the version string ("x.y.z"). + * + * \param string The string that will receive the value. + * (Should be at least 9 bytes in size) + */ +void mbedtls_version_get_string( char *string ); + +/** + * Get the full version string ("mbed TLS x.y.z"). + * + * \param string The string that will receive the value. The mbed TLS version + * string will use 18 bytes AT MOST including a terminating + * null byte. + * (So the buffer should be at least 18 bytes to receive this + * version string). + */ +void mbedtls_version_get_string_full( char *string ); + +/** + * \brief Check if support for a feature was compiled into this + * mbed TLS binary. This allows you to see at runtime if the + * library was for instance compiled with or without + * Multi-threading support. + * + * \note only checks against defines in the sections "System + * support", "mbed TLS modules" and "mbed TLS feature + * support" in config.h + * + * \param feature The string for the define to check (e.g. "MBEDTLS_AES_C") + * + * \return 0 if the feature is present, + * -1 if the feature is not present and + * -2 if support for feature checking as a whole was not + * compiled in. + */ +int mbedtls_version_check_feature( const char *feature ); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_VERSION_C */ + +#endif /* version.h */ diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h new file mode 100644 index 0000000..54dac16 --- /dev/null +++ b/include/mbedtls/x509.h @@ -0,0 +1,331 @@ +/** + * \file x509.h + * + * \brief X.509 generic defines and structures + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_X509_H +#define MBEDTLS_X509_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "asn1.h" +#include "pk.h" + +#if defined(MBEDTLS_RSA_C) +#include "rsa.h" +#endif + +/** + * \addtogroup x509_module + * \{ + */ + +#if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA) +/** + * Maximum number of intermediate CAs in a verification chain. + * That is, maximum length of the chain, excluding the end-entity certificate + * and the trusted root certificate. + * + * Set this to a low value to prevent an adversary from making you waste + * resources verifying an overlong certificate chain. + */ +#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 +#endif + +/** + * \name X509 Error codes + * \{ + */ +#define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE -0x2080 /**< Unavailable feature, e.g. RSA hashing/encryption combination. */ +#define MBEDTLS_ERR_X509_UNKNOWN_OID -0x2100 /**< Requested OID is unknown. */ +#define MBEDTLS_ERR_X509_INVALID_FORMAT -0x2180 /**< The CRT/CRL/CSR format is invalid, e.g. different type expected. */ +#define MBEDTLS_ERR_X509_INVALID_VERSION -0x2200 /**< The CRT/CRL/CSR version element is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_SERIAL -0x2280 /**< The serial tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_ALG -0x2300 /**< The algorithm tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_NAME -0x2380 /**< The name tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_DATE -0x2400 /**< The date tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_SIGNATURE -0x2480 /**< The signature tag or value invalid. */ +#define MBEDTLS_ERR_X509_INVALID_EXTENSIONS -0x2500 /**< The extension tag or value is invalid. */ +#define MBEDTLS_ERR_X509_UNKNOWN_VERSION -0x2580 /**< CRT/CRL/CSR has an unsupported version number. */ +#define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG -0x2600 /**< Signature algorithm (oid) is unsupported. */ +#define MBEDTLS_ERR_X509_SIG_MISMATCH -0x2680 /**< Signature algorithms do not match. (see \c ::mbedtls_x509_crt sig_oid) */ +#define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED -0x2700 /**< Certificate verification failed, e.g. CRL, CA or signature check failed. */ +#define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT -0x2780 /**< Format not recognized as DER or PEM. */ +#define MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800 /**< Input invalid. */ +#define MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880 /**< Allocation of memory failed. */ +#define MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900 /**< Read/write of file failed. */ +#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980 /**< Destination buffer is too small. */ +/* \} name */ + +/** + * \name X509 Verify codes + * \{ + */ +/* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */ +#define MBEDTLS_X509_BADCERT_EXPIRED 0x01 /**< The certificate validity has expired. */ +#define MBEDTLS_X509_BADCERT_REVOKED 0x02 /**< The certificate has been revoked (is on a CRL). */ +#define MBEDTLS_X509_BADCERT_CN_MISMATCH 0x04 /**< The certificate Common Name (CN) does not match with the expected CN. */ +#define MBEDTLS_X509_BADCERT_NOT_TRUSTED 0x08 /**< The certificate is not correctly signed by the trusted CA. */ +#define MBEDTLS_X509_BADCRL_NOT_TRUSTED 0x10 /**< The CRL is not correctly signed by the trusted CA. */ +#define MBEDTLS_X509_BADCRL_EXPIRED 0x20 /**< The CRL is expired. */ +#define MBEDTLS_X509_BADCERT_MISSING 0x40 /**< Certificate was missing. */ +#define MBEDTLS_X509_BADCERT_SKIP_VERIFY 0x80 /**< Certificate verification was skipped. */ +#define MBEDTLS_X509_BADCERT_OTHER 0x0100 /**< Other reason (can be used by verify callback) */ +#define MBEDTLS_X509_BADCERT_FUTURE 0x0200 /**< The certificate validity starts in the future. */ +#define MBEDTLS_X509_BADCRL_FUTURE 0x0400 /**< The CRL is from the future */ +#define MBEDTLS_X509_BADCERT_KEY_USAGE 0x0800 /**< Usage does not match the keyUsage extension. */ +#define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE 0x1000 /**< Usage does not match the extendedKeyUsage extension. */ +#define MBEDTLS_X509_BADCERT_NS_CERT_TYPE 0x2000 /**< Usage does not match the nsCertType extension. */ +#define MBEDTLS_X509_BADCERT_BAD_MD 0x4000 /**< The certificate is signed with an unacceptable hash. */ +#define MBEDTLS_X509_BADCERT_BAD_PK 0x8000 /**< The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA). */ +#define MBEDTLS_X509_BADCERT_BAD_KEY 0x010000 /**< The certificate is signed with an unacceptable key (eg bad curve, RSA too short). */ +#define MBEDTLS_X509_BADCRL_BAD_MD 0x020000 /**< The CRL is signed with an unacceptable hash. */ +#define MBEDTLS_X509_BADCRL_BAD_PK 0x040000 /**< The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA). */ +#define MBEDTLS_X509_BADCRL_BAD_KEY 0x080000 /**< The CRL is signed with an unacceptable key (eg bad curve, RSA too short). */ + +/* \} name */ +/* \} addtogroup x509_module */ + +/* + * X.509 v3 Key Usage Extension flags + * Reminder: update x509_info_key_usage() when adding new flags. + */ +#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */ +#define MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */ +#define MBEDTLS_X509_KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */ +#define MBEDTLS_X509_KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */ +#define MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */ +#define MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */ +#define MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */ +#define MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */ +#define MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */ + +/* + * Netscape certificate types + * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html) + */ + +#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */ +#define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */ +#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */ +#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */ +#define MBEDTLS_X509_NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */ +#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */ +#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */ +#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */ + +/* + * X.509 extension types + * + * Comments refer to the status for using certificates. Status can be + * different for writing certificates or reading CRLs or CSRs. + */ +#define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER (1 << 0) +#define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER (1 << 1) +#define MBEDTLS_X509_EXT_KEY_USAGE (1 << 2) +#define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES (1 << 3) +#define MBEDTLS_X509_EXT_POLICY_MAPPINGS (1 << 4) +#define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME (1 << 5) /* Supported (DNS) */ +#define MBEDTLS_X509_EXT_ISSUER_ALT_NAME (1 << 6) +#define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS (1 << 7) +#define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS (1 << 8) /* Supported */ +#define MBEDTLS_X509_EXT_NAME_CONSTRAINTS (1 << 9) +#define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS (1 << 10) +#define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE (1 << 11) +#define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS (1 << 12) +#define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY (1 << 13) +#define MBEDTLS_X509_EXT_FRESHEST_CRL (1 << 14) + +#define MBEDTLS_X509_EXT_NS_CERT_TYPE (1 << 16) /* Parsed (and then ?) */ + +/* + * Storage format identifiers + * Recognized formats: PEM and DER + */ +#define MBEDTLS_X509_FORMAT_DER 1 +#define MBEDTLS_X509_FORMAT_PEM 2 + +#define MBEDTLS_X509_MAX_DN_NAME_SIZE 256 /**< Maximum value size of a DN entry */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \addtogroup x509_module + * \{ */ + +/** + * \name Structures for parsing X.509 certificates, CRLs and CSRs + * \{ + */ + +/** + * Type-length-value structure that allows for ASN1 using DER. + */ +typedef mbedtls_asn1_buf mbedtls_x509_buf; + +/** + * Container for ASN1 bit strings. + */ +typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring; + +/** + * Container for ASN1 named information objects. + * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.). + */ +typedef mbedtls_asn1_named_data mbedtls_x509_name; + +/** + * Container for a sequence of ASN.1 items + */ +typedef mbedtls_asn1_sequence mbedtls_x509_sequence; + +/** Container for date and time (precision in seconds). */ +typedef struct mbedtls_x509_time +{ + int year, mon, day; /**< Date. */ + int hour, min, sec; /**< Time. */ +} +mbedtls_x509_time; + +/** \} name Structures for parsing X.509 certificates, CRLs and CSRs */ +/** \} addtogroup x509_module */ + +/** + * \brief Store the certificate DN in printable form into buf; + * no more than size characters will be written. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param dn The X509 name to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn ); + +/** + * \brief Store the certificate serial in printable form into buf; + * no more than size characters will be written. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param serial The X509 serial to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial ); + +/** + * \brief Check a given mbedtls_x509_time against the system time + * and tell if it's in the past. + * + * \note Intended usage is "if( is_past( valid_to ) ) ERROR". + * Hence the return value of 1 if on internal errors. + * + * \param time mbedtls_x509_time to check + * + * \return 1 if the given time is in the past or an error occured, + * 0 otherwise. + */ +int mbedtls_x509_time_is_past( const mbedtls_x509_time *time ); + +/** + * \brief Check a given mbedtls_x509_time against the system time + * and tell if it's in the future. + * + * \note Intended usage is "if( is_future( valid_from ) ) ERROR". + * Hence the return value of 1 if on internal errors. + * + * \param time mbedtls_x509_time to check + * + * \return 1 if the given time is in the future or an error occured, + * 0 otherwise. + */ +int mbedtls_x509_time_is_future( const mbedtls_x509_time *time ); + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_x509_self_test( int verbose ); + +/* + * Internal module functions. You probably do not want to use these unless you + * know you do. + */ +int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end, + mbedtls_x509_name *cur ); +int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *alg ); +int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *alg, mbedtls_x509_buf *params ); +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) +int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params, + mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md, + int *salt_len ); +#endif +int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig ); +int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params, + mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg, + void **sig_opts ); +int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end, + mbedtls_x509_time *time ); +int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *serial ); +int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *ext, int tag ); +int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid, + mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, + const void *sig_opts ); +int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name ); +int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name ); +int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len, + int critical, const unsigned char *val, + size_t val_len ); +int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start, + mbedtls_asn1_named_data *first ); +int mbedtls_x509_write_names( unsigned char **p, unsigned char *start, + mbedtls_asn1_named_data *first ); +int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len, + unsigned char *sig, size_t size ); + +#define MBEDTLS_X509_SAFE_SNPRINTF \ + do { \ + if( ret < 0 || (size_t) ret >= n ) \ + return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); \ + \ + n -= (size_t) ret; \ + p += (size_t) ret; \ + } while( 0 ) + +#ifdef __cplusplus +} +#endif + +#endif /* x509.h */ diff --git a/include/mbedtls/x509_crl.h b/include/mbedtls/x509_crl.h new file mode 100644 index 0000000..7988439 --- /dev/null +++ b/include/mbedtls/x509_crl.h @@ -0,0 +1,173 @@ +/** + * \file x509_crl.h + * + * \brief X.509 certificate revocation list parsing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_X509_CRL_H +#define MBEDTLS_X509_CRL_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "x509.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \addtogroup x509_module + * \{ */ + +/** + * \name Structures and functions for parsing CRLs + * \{ + */ + +/** + * Certificate revocation list entry. + * Contains the CA-specific serial numbers and revocation dates. + */ +typedef struct mbedtls_x509_crl_entry +{ + mbedtls_x509_buf raw; + + mbedtls_x509_buf serial; + + mbedtls_x509_time revocation_date; + + mbedtls_x509_buf entry_ext; + + struct mbedtls_x509_crl_entry *next; +} +mbedtls_x509_crl_entry; + +/** + * Certificate revocation list structure. + * Every CRL may have multiple entries. + */ +typedef struct mbedtls_x509_crl +{ + mbedtls_x509_buf raw; /**< The raw certificate data (DER). */ + mbedtls_x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */ + + int version; /**< CRL version (1=v1, 2=v2) */ + mbedtls_x509_buf sig_oid; /**< CRL signature type identifier */ + + mbedtls_x509_buf issuer_raw; /**< The raw issuer data (DER). */ + + mbedtls_x509_name issuer; /**< The parsed issuer data (named information object). */ + + mbedtls_x509_time this_update; + mbedtls_x509_time next_update; + + mbedtls_x509_crl_entry entry; /**< The CRL entries containing the certificate revocation times for this CA. */ + + mbedtls_x509_buf crl_ext; + + mbedtls_x509_buf sig_oid2; + mbedtls_x509_buf sig; + mbedtls_md_type_t sig_md; /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ + mbedtls_pk_type_t sig_pk; /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ + void *sig_opts; /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ + + struct mbedtls_x509_crl *next; +} +mbedtls_x509_crl; + +/** + * \brief Parse a DER-encoded CRL and append it to the chained list + * + * \param chain points to the start of the chain + * \param buf buffer holding the CRL data in DER format + * \param buflen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain, + const unsigned char *buf, size_t buflen ); +/** + * \brief Parse one or more CRLs and append them to the chained list + * + * \note Mutliple CRLs are accepted only if using PEM format + * + * \param chain points to the start of the chain + * \param buf buffer holding the CRL data in PEM or DER format + * \param buflen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen ); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Load one or more CRLs and append them to the chained list + * + * \note Mutliple CRLs are accepted only if using PEM format + * + * \param chain points to the start of the chain + * \param path filename to read the CRLs from (in PEM or DER encoding) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path ); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief Returns an informational string about the CRL. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param crl The X509 CRL to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix, + const mbedtls_x509_crl *crl ); + +/** + * \brief Initialize a CRL (chain) + * + * \param crl CRL chain to initialize + */ +void mbedtls_x509_crl_init( mbedtls_x509_crl *crl ); + +/** + * \brief Unallocate all CRL data + * + * \param crl CRL chain to free + */ +void mbedtls_x509_crl_free( mbedtls_x509_crl *crl ); + +/* \} name */ +/* \} addtogroup x509_module */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_x509_crl.h */ diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h new file mode 100644 index 0000000..383e484 --- /dev/null +++ b/include/mbedtls/x509_crt.h @@ -0,0 +1,654 @@ +/** + * \file x509_crt.h + * + * \brief X.509 certificate parsing and writing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_X509_CRT_H +#define MBEDTLS_X509_CRT_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "x509.h" +#include "x509_crl.h" + +/** + * \addtogroup x509_module + * \{ + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \name Structures and functions for parsing and writing X.509 certificates + * \{ + */ + +/** + * Container for an X.509 certificate. The certificate may be chained. + */ +typedef struct mbedtls_x509_crt +{ + mbedtls_x509_buf raw; /**< The raw certificate data (DER). */ + mbedtls_x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */ + + int version; /**< The X.509 version. (1=v1, 2=v2, 3=v3) */ + mbedtls_x509_buf serial; /**< Unique id for certificate issued by a specific CA. */ + mbedtls_x509_buf sig_oid; /**< Signature algorithm, e.g. sha1RSA */ + + mbedtls_x509_buf issuer_raw; /**< The raw issuer data (DER). Used for quick comparison. */ + mbedtls_x509_buf subject_raw; /**< The raw subject data (DER). Used for quick comparison. */ + + mbedtls_x509_name issuer; /**< The parsed issuer data (named information object). */ + mbedtls_x509_name subject; /**< The parsed subject data (named information object). */ + + mbedtls_x509_time valid_from; /**< Start time of certificate validity. */ + mbedtls_x509_time valid_to; /**< End time of certificate validity. */ + + mbedtls_pk_context pk; /**< Container for the public key context. */ + + mbedtls_x509_buf issuer_id; /**< Optional X.509 v2/v3 issuer unique identifier. */ + mbedtls_x509_buf subject_id; /**< Optional X.509 v2/v3 subject unique identifier. */ + mbedtls_x509_buf v3_ext; /**< Optional X.509 v3 extensions. */ + mbedtls_x509_sequence subject_alt_names; /**< Optional list of Subject Alternative Names (Only dNSName supported). */ + + int ext_types; /**< Bit string containing detected and parsed extensions */ + int ca_istrue; /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */ + int max_pathlen; /**< Optional Basic Constraint extension value: The maximum path length to the root certificate. Path length is 1 higher than RFC 5280 'meaning', so 1+ */ + + unsigned int key_usage; /**< Optional key usage extension value: See the values in x509.h */ + + mbedtls_x509_sequence ext_key_usage; /**< Optional list of extended key usage OIDs. */ + + unsigned char ns_cert_type; /**< Optional Netscape certificate type extension value: See the values in x509.h */ + + mbedtls_x509_buf sig; /**< Signature: hash of the tbs part signed with the private key. */ + mbedtls_md_type_t sig_md; /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ + mbedtls_pk_type_t sig_pk; /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ + void *sig_opts; /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ + + struct mbedtls_x509_crt *next; /**< Next certificate in the CA-chain. */ +} +mbedtls_x509_crt; + +/** + * Build flag from an algorithm/curve identifier (pk, md, ecp) + * Since 0 is always XXX_NONE, ignore it. + */ +#define MBEDTLS_X509_ID_FLAG( id ) ( 1 << ( id - 1 ) ) + +/** + * Security profile for certificate verification. + * + * All lists are bitfields, built by ORing flags from MBEDTLS_X509_ID_FLAG(). + */ +typedef struct +{ + uint32_t allowed_mds; /**< MDs for signatures */ + uint32_t allowed_pks; /**< PK algs for signatures */ + uint32_t allowed_curves; /**< Elliptic curves for ECDSA */ + uint32_t rsa_min_bitlen; /**< Minimum size for RSA keys */ +} +mbedtls_x509_crt_profile; + +#define MBEDTLS_X509_CRT_VERSION_1 0 +#define MBEDTLS_X509_CRT_VERSION_2 1 +#define MBEDTLS_X509_CRT_VERSION_3 2 + +#define MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN 32 +#define MBEDTLS_X509_RFC5280_UTC_TIME_LEN 15 + +#if !defined( MBEDTLS_X509_MAX_FILE_PATH_LEN ) +#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 +#endif + +/** + * Container for writing a certificate (CRT) + */ +typedef struct mbedtls_x509write_cert +{ + int version; + mbedtls_mpi serial; + mbedtls_pk_context *subject_key; + mbedtls_pk_context *issuer_key; + mbedtls_asn1_named_data *subject; + mbedtls_asn1_named_data *issuer; + mbedtls_md_type_t md_alg; + char not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1]; + char not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1]; + mbedtls_asn1_named_data *extensions; +} +mbedtls_x509write_cert; + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * Default security profile. Should provide a good balance between security + * and compatibility with current deployments. + */ +extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default; + +/** + * Expected next default profile. Recommended for new deployments. + * Currently targets a 128-bit security level, except for RSA-2048. + */ +extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next; + +/** + * NSA Suite B profile. + */ +extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb; + +/** + * \brief Parse a single DER formatted certificate and add it + * to the chained list. + * + * \param chain points to the start of the chain + * \param buf buffer holding the certificate DER data + * \param buflen size of the buffer + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_crt_parse_der( mbedtls_x509_crt *chain, const unsigned char *buf, + size_t buflen ); + +/** + * \brief Parse one or more certificates and add them + * to the chained list. Parses permissively. If some + * certificates can be parsed, the result is the number + * of failed certificates it encountered. If none complete + * correctly, the first error is returned. + * + * \param chain points to the start of the chain + * \param buf buffer holding the certificate data in PEM or DER format + * \param buflen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if all certificates parsed successfully, a positive number + * if partly successful or a specific X509 or PEM error code + */ +int mbedtls_x509_crt_parse( mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen ); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Load one or more certificates and add them + * to the chained list. Parses permissively. If some + * certificates can be parsed, the result is the number + * of failed certificates it encountered. If none complete + * correctly, the first error is returned. + * + * \param chain points to the start of the chain + * \param path filename to read the certificates from + * + * \return 0 if all certificates parsed successfully, a positive number + * if partly successful or a specific X509 or PEM error code + */ +int mbedtls_x509_crt_parse_file( mbedtls_x509_crt *chain, const char *path ); + +/** + * \brief Load one or more certificate files from a path and add them + * to the chained list. Parses permissively. If some + * certificates can be parsed, the result is the number + * of failed certificates it encountered. If none complete + * correctly, the first error is returned. + * + * \param chain points to the start of the chain + * \param path directory / folder to read the certificate files from + * + * \return 0 if all certificates parsed successfully, a positive number + * if partly successful or a specific X509 or PEM error code + */ +int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path ); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief Returns an informational string about the + * certificate. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param crt The X509 certificate to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix, + const mbedtls_x509_crt *crt ); + +/** + * \brief Returns an informational string about the + * verification status of a certificate. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param flags Verification flags created by mbedtls_x509_crt_verify() + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix, + uint32_t flags ); + +/** + * \brief Verify the certificate signature + * + * The verify callback is a user-supplied callback that + * can clear / modify / add flags for a certificate. If set, + * the verification callback is called for each + * certificate in the chain (from the trust-ca down to the + * presented crt). The parameters for the callback are: + * (void *parameter, mbedtls_x509_crt *crt, int certificate_depth, + * int *flags). With the flags representing current flags for + * that specific certificate and the certificate depth from + * the bottom (Peer cert depth = 0). + * + * All flags left after returning from the callback + * are also returned to the application. The function should + * return 0 for anything but a fatal error. + * + * \note In case verification failed, the results can be displayed + * using \c mbedtls_x509_crt_verify_info() + * + * \note Same as \c mbedtls_x509_crt_verify_with_profile() with the + * default security profile. + * + * \note It is your responsibility to provide up-to-date CRLs for + * all trusted CAs. If no CRL is provided for the CA that was + * used to sign the certificate, CRL verification is skipped + * silently, that is *without* setting any flag. + * + * \param crt a certificate (chain) to be verified + * \param trust_ca the list of trusted CAs + * \param ca_crl the list of CRLs for trusted CAs (see note above) + * \param cn expected Common Name (can be set to + * NULL if the CN must not be verified) + * \param flags result of the verification + * \param f_vrfy verification function + * \param p_vrfy verification parameter + * + * \return 0 if successful or MBEDTLS_ERR_X509_CERT_VERIFY_FAILED + * in which case *flags will have one or more + * MBEDTLS_X509_BADCERT_XXX or MBEDTLS_X509_BADCRL_XXX flags + * set, + * or another error in case of a fatal error encountered + * during the verification process. + */ +int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt, + mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ); + +/** + * \brief Verify the certificate signature according to profile + * + * \note Same as \c mbedtls_x509_crt_verify(), but with explicit + * security profile. + * + * \note The restrictions on keys (RSA minimum size, allowed curves + * for ECDSA) apply to all certificates: trusted root, + * intermediate CAs if any, and end entity certificate. + * + * \param crt a certificate (chain) to be verified + * \param trust_ca the list of trusted CAs + * \param ca_crl the list of CRLs for trusted CAs + * \param profile security profile for verification + * \param cn expected Common Name (can be set to + * NULL if the CN must not be verified) + * \param flags result of the verification + * \param f_vrfy verification function + * \param p_vrfy verification parameter + * + * \return 0 if successful or MBEDTLS_ERR_X509_CERT_VERIFY_FAILED + * in which case *flags will have one or more + * MBEDTLS_X509_BADCERT_XXX or MBEDTLS_X509_BADCRL_XXX flags + * set, + * or another error in case of a fatal error encountered + * during the verification process. + */ +int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt, + mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const mbedtls_x509_crt_profile *profile, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ); + +#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) +/** + * \brief Check usage of certificate against keyUsage extension. + * + * \param crt Leaf certificate used. + * \param usage Intended usage(s) (eg MBEDTLS_X509_KU_KEY_ENCIPHERMENT + * before using the certificate to perform an RSA key + * exchange). + * + * \note Except for decipherOnly and encipherOnly, a bit set in the + * usage argument means this bit MUST be set in the + * certificate. For decipherOnly and encipherOnly, it means + * that bit MAY be set. + * + * \return 0 is these uses of the certificate are allowed, + * MBEDTLS_ERR_X509_BAD_INPUT_DATA if the keyUsage extension + * is present but does not match the usage argument. + * + * \note You should only call this function on leaf certificates, on + * (intermediate) CAs the keyUsage extension is automatically + * checked by \c mbedtls_x509_crt_verify(). + */ +int mbedtls_x509_crt_check_key_usage( const mbedtls_x509_crt *crt, + unsigned int usage ); +#endif /* MBEDTLS_X509_CHECK_KEY_USAGE) */ + +#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) +/** + * \brief Check usage of certificate against extentedJeyUsage. + * + * \param crt Leaf certificate used. + * \param usage_oid Intended usage (eg MBEDTLS_OID_SERVER_AUTH or MBEDTLS_OID_CLIENT_AUTH). + * \param usage_len Length of usage_oid (eg given by MBEDTLS_OID_SIZE()). + * + * \return 0 if this use of the certificate is allowed, + * MBEDTLS_ERR_X509_BAD_INPUT_DATA if not. + * + * \note Usually only makes sense on leaf certificates. + */ +int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt, + const char *usage_oid, + size_t usage_len ); +#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) */ + +#if defined(MBEDTLS_X509_CRL_PARSE_C) +/** + * \brief Verify the certificate revocation status + * + * \param crt a certificate to be verified + * \param crl the CRL to verify against + * + * \return 1 if the certificate is revoked, 0 otherwise + * + */ +int mbedtls_x509_crt_is_revoked( const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl ); +#endif /* MBEDTLS_X509_CRL_PARSE_C */ + +/** + * \brief Initialize a certificate (chain) + * + * \param crt Certificate chain to initialize + */ +void mbedtls_x509_crt_init( mbedtls_x509_crt *crt ); + +/** + * \brief Unallocate all certificate data + * + * \param crt Certificate chain to free + */ +void mbedtls_x509_crt_free( mbedtls_x509_crt *crt ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/* \} name */ +/* \} addtogroup x509_module */ + +#if defined(MBEDTLS_X509_CRT_WRITE_C) +/** + * \brief Initialize a CRT writing context + * + * \param ctx CRT context to initialize + */ +void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx ); + +/** + * \brief Set the verion for a Certificate + * Default: MBEDTLS_X509_CRT_VERSION_3 + * + * \param ctx CRT context to use + * \param version version to set (MBEDTLS_X509_CRT_VERSION_1, MBEDTLS_X509_CRT_VERSION_2 or + * MBEDTLS_X509_CRT_VERSION_3) + */ +void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version ); + +/** + * \brief Set the serial number for a Certificate. + * + * \param ctx CRT context to use + * \param serial serial number to set + * + * \return 0 if successful + */ +int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial ); + +/** + * \brief Set the validity period for a Certificate + * Timestamps should be in string format for UTC timezone + * i.e. "YYYYMMDDhhmmss" + * e.g. "20131231235959" for December 31st 2013 + * at 23:59:59 + * + * \param ctx CRT context to use + * \param not_before not_before timestamp + * \param not_after not_after timestamp + * + * \return 0 if timestamp was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before, + const char *not_after ); + +/** + * \brief Set the issuer name for a Certificate + * Issuer names should contain a comma-separated list + * of OID types and values: + * e.g. "C=UK,O=ARM,CN=mbed TLS CA" + * + * \param ctx CRT context to use + * \param issuer_name issuer name to set + * + * \return 0 if issuer name was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx, + const char *issuer_name ); + +/** + * \brief Set the subject name for a Certificate + * Subject names should contain a comma-separated list + * of OID types and values: + * e.g. "C=UK,O=ARM,CN=mbed TLS Server 1" + * + * \param ctx CRT context to use + * \param subject_name subject name to set + * + * \return 0 if subject name was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx, + const char *subject_name ); + +/** + * \brief Set the subject public key for the certificate + * + * \param ctx CRT context to use + * \param key public key to include + */ +void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ); + +/** + * \brief Set the issuer key used for signing the certificate + * + * \param ctx CRT context to use + * \param key private key to sign with + */ +void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ); + +/** + * \brief Set the MD algorithm to use for the signature + * (e.g. MBEDTLS_MD_SHA1) + * + * \param ctx CRT context to use + * \param md_alg MD algorithm to use + */ +void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg ); + +/** + * \brief Generic function to add to or replace an extension in the + * CRT + * + * \param ctx CRT context to use + * \param oid OID of the extension + * \param oid_len length of the OID + * \param critical if the extension is critical (per the RFC's definition) + * \param val value of the extension OCTET STRING + * \param val_len length of the value data + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx, + const char *oid, size_t oid_len, + int critical, + const unsigned char *val, size_t val_len ); + +/** + * \brief Set the basicConstraints extension for a CRT + * + * \param ctx CRT context to use + * \param is_ca is this a CA certificate + * \param max_pathlen maximum length of certificate chains below this + * certificate (only for CA certificates, -1 is + * inlimited) + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx, + int is_ca, int max_pathlen ); + +#if defined(MBEDTLS_SHA1_C) +/** + * \brief Set the subjectKeyIdentifier extension for a CRT + * Requires that mbedtls_x509write_crt_set_subject_key() has been + * called before + * + * \param ctx CRT context to use + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx ); + +/** + * \brief Set the authorityKeyIdentifier extension for a CRT + * Requires that mbedtls_x509write_crt_set_issuer_key() has been + * called before + * + * \param ctx CRT context to use + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx ); +#endif /* MBEDTLS_SHA1_C */ + +/** + * \brief Set the Key Usage Extension flags + * (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) + * + * \param ctx CRT context to use + * \param key_usage key usage flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx, + unsigned int key_usage ); + +/** + * \brief Set the Netscape Cert Type flags + * (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) + * + * \param ctx CRT context to use + * \param ns_cert_type Netscape Cert Type flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx, + unsigned char ns_cert_type ); + +/** + * \brief Free the contents of a CRT write context + * + * \param ctx CRT context to free + */ +void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx ); + +/** + * \brief Write a built up certificate to a X509 DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx certificate to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function (for signature, see note) + * \param p_rng RNG parameter + * + * \return length of data written if successful, or a specific + * error code + * + * \note f_rng may be NULL if RSA is used for signature and the + * signature is made offline (otherwise f_rng is desirable + * for countermeasures against timing attacks). + * ECDSA signatures always require a non-NULL f_rng. + */ +int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a built up certificate to a X509 PEM string + * + * \param ctx certificate to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function (for signature, see note) + * \param p_rng RNG parameter + * + * \return 0 if successful, or a specific error code + * + * \note f_rng may be NULL if RSA is used for signature and the + * signature is made offline (otherwise f_rng is desirable + * for countermeasures against timing attacks). + * ECDSA signatures always require a non-NULL f_rng. + */ +int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); +#endif /* MBEDTLS_PEM_WRITE_C */ +#endif /* MBEDTLS_X509_CRT_WRITE_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_x509_crt.h */ diff --git a/include/mbedtls/x509_csr.h b/include/mbedtls/x509_csr.h new file mode 100644 index 0000000..fe9843c --- /dev/null +++ b/include/mbedtls/x509_csr.h @@ -0,0 +1,298 @@ +/** + * \file x509_csr.h + * + * \brief X.509 certificate signing request parsing and writing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_X509_CSR_H +#define MBEDTLS_X509_CSR_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "x509.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \addtogroup x509_module + * \{ */ + +/** + * \name Structures and functions for X.509 Certificate Signing Requests (CSR) + * \{ + */ + +/** + * Certificate Signing Request (CSR) structure. + */ +typedef struct mbedtls_x509_csr +{ + mbedtls_x509_buf raw; /**< The raw CSR data (DER). */ + mbedtls_x509_buf cri; /**< The raw CertificateRequestInfo body (DER). */ + + int version; /**< CSR version (1=v1). */ + + mbedtls_x509_buf subject_raw; /**< The raw subject data (DER). */ + mbedtls_x509_name subject; /**< The parsed subject data (named information object). */ + + mbedtls_pk_context pk; /**< Container for the public key context. */ + + mbedtls_x509_buf sig_oid; + mbedtls_x509_buf sig; + mbedtls_md_type_t sig_md; /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ + mbedtls_pk_type_t sig_pk; /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ + void *sig_opts; /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ +} +mbedtls_x509_csr; + +/** + * Container for writing a CSR + */ +typedef struct mbedtls_x509write_csr +{ + mbedtls_pk_context *key; + mbedtls_asn1_named_data *subject; + mbedtls_md_type_t md_alg; + mbedtls_asn1_named_data *extensions; +} +mbedtls_x509write_csr; + +#if defined(MBEDTLS_X509_CSR_PARSE_C) +/** + * \brief Load a Certificate Signing Request (CSR) in DER format + * + * \note CSR attributes (if any) are currently silently ignored. + * + * \param csr CSR context to fill + * \param buf buffer holding the CRL data + * \param buflen size of the buffer + * + * \return 0 if successful, or a specific X509 error code + */ +int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr, + const unsigned char *buf, size_t buflen ); + +/** + * \brief Load a Certificate Signing Request (CSR), DER or PEM format + * + * \note See notes for \c mbedtls_x509_csr_parse_der() + * + * \param csr CSR context to fill + * \param buf buffer holding the CRL data + * \param buflen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen ); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Load a Certificate Signing Request (CSR) + * + * \note See notes for \c mbedtls_x509_csr_parse() + * + * \param csr CSR context to fill + * \param path filename to read the CSR from + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path ); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief Returns an informational string about the + * CSR. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param csr The X509 CSR to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix, + const mbedtls_x509_csr *csr ); + +/** + * \brief Initialize a CSR + * + * \param csr CSR to initialize + */ +void mbedtls_x509_csr_init( mbedtls_x509_csr *csr ); + +/** + * \brief Unallocate all CSR data + * + * \param csr CSR to free + */ +void mbedtls_x509_csr_free( mbedtls_x509_csr *csr ); +#endif /* MBEDTLS_X509_CSR_PARSE_C */ + +/* \} name */ +/* \} addtogroup x509_module */ + +#if defined(MBEDTLS_X509_CSR_WRITE_C) +/** + * \brief Initialize a CSR context + * + * \param ctx CSR context to initialize + */ +void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx ); + +/** + * \brief Set the subject name for a CSR + * Subject names should contain a comma-separated list + * of OID types and values: + * e.g. "C=UK,O=ARM,CN=mbed TLS Server 1" + * + * \param ctx CSR context to use + * \param subject_name subject name to set + * + * \return 0 if subject name was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx, + const char *subject_name ); + +/** + * \brief Set the key for a CSR (public key will be included, + * private key used to sign the CSR when writing it) + * + * \param ctx CSR context to use + * \param key Asymetric key to include + */ +void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key ); + +/** + * \brief Set the MD algorithm to use for the signature + * (e.g. MBEDTLS_MD_SHA1) + * + * \param ctx CSR context to use + * \param md_alg MD algorithm to use + */ +void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg ); + +/** + * \brief Set the Key Usage Extension flags + * (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) + * + * \param ctx CSR context to use + * \param key_usage key usage flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage ); + +/** + * \brief Set the Netscape Cert Type flags + * (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) + * + * \param ctx CSR context to use + * \param ns_cert_type Netscape Cert Type flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx, + unsigned char ns_cert_type ); + +/** + * \brief Generic function to add to or replace an extension in the + * CSR + * + * \param ctx CSR context to use + * \param oid OID of the extension + * \param oid_len length of the OID + * \param val value of the extension OCTET STRING + * \param val_len length of the value data + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx, + const char *oid, size_t oid_len, + const unsigned char *val, size_t val_len ); + +/** + * \brief Free the contents of a CSR context + * + * \param ctx CSR context to free + */ +void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx ); + +/** + * \brief Write a CSR (Certificate Signing Request) to a + * DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx CSR to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function (for signature, see note) + * \param p_rng RNG parameter + * + * \return length of data written if successful, or a specific + * error code + * + * \note f_rng may be NULL if RSA is used for signature and the + * signature is made offline (otherwise f_rng is desirable + * for countermeasures against timing attacks). + * ECDSA signatures always require a non-NULL f_rng. + */ +int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a CSR (Certificate Signing Request) to a + * PEM string + * + * \param ctx CSR to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function (for signature, see note) + * \param p_rng RNG parameter + * + * \return 0 if successful, or a specific error code + * + * \note f_rng may be NULL if RSA is used for signature and the + * signature is made offline (otherwise f_rng is desirable + * for countermeasures against timing attacks). + * ECDSA signatures always require a non-NULL f_rng. + */ +int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ); +#endif /* MBEDTLS_PEM_WRITE_C */ +#endif /* MBEDTLS_X509_CSR_WRITE_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_x509_csr.h */ diff --git a/include/mbedtls/xtea.h b/include/mbedtls/xtea.h new file mode 100644 index 0000000..b073f84 --- /dev/null +++ b/include/mbedtls/xtea.h @@ -0,0 +1,139 @@ +/** + * \file xtea.h + * + * \brief XTEA block cipher (32-bit) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_XTEA_H +#define MBEDTLS_XTEA_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include +#include + +#define MBEDTLS_XTEA_ENCRYPT 1 +#define MBEDTLS_XTEA_DECRYPT 0 + +#define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028 /**< The data input has an invalid length. */ + +#if !defined(MBEDTLS_XTEA_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief XTEA context structure + */ +typedef struct +{ + uint32_t k[4]; /*!< key */ +} +mbedtls_xtea_context; + +/** + * \brief Initialize XTEA context + * + * \param ctx XTEA context to be initialized + */ +void mbedtls_xtea_init( mbedtls_xtea_context *ctx ); + +/** + * \brief Clear XTEA context + * + * \param ctx XTEA context to be cleared + */ +void mbedtls_xtea_free( mbedtls_xtea_context *ctx ); + +/** + * \brief XTEA key schedule + * + * \param ctx XTEA context to be initialized + * \param key the secret key + */ +void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] ); + +/** + * \brief XTEA cipher function + * + * \param ctx XTEA context + * \param mode MBEDTLS_XTEA_ENCRYPT or MBEDTLS_XTEA_DECRYPT + * \param input 8-byte input block + * \param output 8-byte output block + * + * \return 0 if successful + */ +int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx, + int mode, + const unsigned char input[8], + unsigned char output[8] ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief XTEA CBC cipher function + * + * \param ctx XTEA context + * \param mode MBEDTLS_XTEA_ENCRYPT or MBEDTLS_XTEA_DECRYPT + * \param length the length of input, multiple of 8 + * \param iv initialization vector for CBC mode + * \param input input block + * \param output output block + * + * \return 0 if successful, + * MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH if the length % 8 != 0 + */ +int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, + int mode, + size_t length, + unsigned char iv[8], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_XTEA_ALT */ +#include "xtea_alt.h" +#endif /* MBEDTLS_XTEA_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_xtea_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* xtea.h */ diff --git a/mbedtls/CMakeLists.txt b/mbedtls/CMakeLists.txt new file mode 100644 index 0000000..6eb11f2 --- /dev/null +++ b/mbedtls/CMakeLists.txt @@ -0,0 +1,162 @@ +option(USE_STATIC_MBEDTLS_LIBRARY "Build mbed TLS static library." ON) +option(USE_SHARED_MBEDTLS_LIBRARY "Build mbed TLS shared library." OFF) +option(LINK_WITH_PTHREAD "Explicitly link mbed TLS library to pthread." OFF) + +set(src_crypto + aes.c + aesni.c + arc4.c + asn1parse.c + asn1write.c + base64.c + bignum.c + blowfish.c + camellia.c + ccm.c + cipher.c + cipher_wrap.c + cmac.c + ctr_drbg.c + des.c + dhm.c + ecdh.c + ecdsa.c + ecjpake.c + ecp.c + ecp_curves.c + entropy.c + entropy_poll.c + error.c + gcm.c + havege.c + hmac_drbg.c + md.c + md2.c + md4.c + md5.c + md_wrap.c + memory_buffer_alloc.c + oid.c + padlock.c + pem.c + pk.c + pk_wrap.c + pkcs12.c + pkcs5.c + pkparse.c + pkwrite.c + platform.c + ripemd160.c + rsa.c + sha1.c + sha256.c + sha512.c + threading.c + timing.c + version.c + version_features.c + xtea.c +) + +set(src_x509 + certs.c + pkcs11.c + x509.c + x509_create.c + x509_crl.c + x509_crt.c + x509_csr.c + x509write_crt.c + x509write_csr.c +) + +set(src_tls + debug.c + net_sockets.c + ssl_cache.c + ssl_ciphersuites.c + ssl_cli.c + ssl_cookie.c + ssl_srv.c + ssl_ticket.c + ssl_tls.c +) + +if(CMAKE_COMPILER_IS_GNUCC) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-declarations -Wmissing-prototypes") +endif(CMAKE_COMPILER_IS_GNUCC) + +if(CMAKE_COMPILER_IS_CLANG) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-declarations -Wmissing-prototypes -Wdocumentation -Wno-documentation-deprecated-sync -Wunreachable-code") +endif(CMAKE_COMPILER_IS_CLANG) + +if(WIN32) + set(libs ${libs} ws2_32) +endif(WIN32) + +if(USE_PKCS11_HELPER_LIBRARY) + set(libs ${libs} pkcs11-helper) +endif(USE_PKCS11_HELPER_LIBRARY) + +if(ENABLE_ZLIB_SUPPORT) + set(libs ${libs} ${ZLIB_LIBRARIES}) +endif(ENABLE_ZLIB_SUPPORT) + +if(LINK_WITH_PTHREAD) + set(libs ${libs} pthread) +endif() + +if (NOT USE_STATIC_MBEDTLS_LIBRARY AND NOT USE_SHARED_MBEDTLS_LIBRARY) + message(FATAL_ERROR "Need to choose static or shared mbedtls build!") +endif(NOT USE_STATIC_MBEDTLS_LIBRARY AND NOT USE_SHARED_MBEDTLS_LIBRARY) + +if(USE_STATIC_MBEDTLS_LIBRARY AND USE_SHARED_MBEDTLS_LIBRARY) + set(mbedtls_static_target "mbedtls_static") + set(mbedx509_static_target "mbedx509_static") + set(mbedcrypto_static_target "mbedcrypto_static") +elseif(USE_STATIC_MBEDTLS_LIBRARY) + set(mbedtls_static_target "mbedtls") + set(mbedx509_static_target "mbedx509") + set(mbedcrypto_static_target "mbedcrypto") +endif() + +if(USE_STATIC_MBEDTLS_LIBRARY) + add_library(${mbedcrypto_static_target} STATIC ${src_crypto}) + set_target_properties(${mbedcrypto_static_target} PROPERTIES OUTPUT_NAME mbedcrypto) + target_link_libraries(${mbedcrypto_static_target} ${libs}) + + add_library(${mbedx509_static_target} STATIC ${src_x509}) + set_target_properties(${mbedx509_static_target} PROPERTIES OUTPUT_NAME mbedx509) + target_link_libraries(${mbedx509_static_target} ${libs} ${mbedcrypto_static_target}) + + add_library(${mbedtls_static_target} STATIC ${src_tls}) + set_target_properties(${mbedtls_static_target} PROPERTIES OUTPUT_NAME mbedtls) + target_link_libraries(${mbedtls_static_target} ${libs} ${mbedx509_static_target}) + + install(TARGETS ${mbedtls_static_target} ${mbedx509_static_target} ${mbedcrypto_static_target} + DESTINATION ${LIB_INSTALL_DIR} + PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE) +endif(USE_STATIC_MBEDTLS_LIBRARY) + +if(USE_SHARED_MBEDTLS_LIBRARY) + add_library(mbedcrypto SHARED ${src_crypto}) + set_target_properties(mbedcrypto PROPERTIES VERSION 2.4.0 SOVERSION 0) + target_link_libraries(mbedcrypto ${libs}) + + add_library(mbedx509 SHARED ${src_x509}) + set_target_properties(mbedx509 PROPERTIES VERSION 2.4.0 SOVERSION 0) + target_link_libraries(mbedx509 ${libs} mbedcrypto) + + add_library(mbedtls SHARED ${src_tls}) + set_target_properties(mbedtls PROPERTIES VERSION 2.4.0 SOVERSION 10) + target_link_libraries(mbedtls ${libs} mbedx509) + + install(TARGETS mbedtls mbedx509 mbedcrypto + DESTINATION ${LIB_INSTALL_DIR} + PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE) +endif(USE_SHARED_MBEDTLS_LIBRARY) + +add_custom_target(lib DEPENDS mbedcrypto mbedx509 mbedtls) +if(USE_STATIC_MBEDTLS_LIBRARY AND USE_SHARED_MBEDTLS_LIBRARY) + add_dependencies(lib mbedcrypto_static mbedx509_static mbedtls_static) +endif() diff --git a/mbedtls/Makefile b/mbedtls/Makefile new file mode 100644 index 0000000..28f9231 --- /dev/null +++ b/mbedtls/Makefile @@ -0,0 +1,169 @@ + +# Also see "include/mbedtls/config.h" + +CFLAGS ?= -O2 +WARNING_CFLAGS ?= -Wall -W -Wdeclaration-after-statement +LDFLAGS ?= + +LOCAL_CFLAGS = $(WARNING_CFLAGS) -I../include -D_FILE_OFFSET_BITS=64 +LOCAL_LDFLAGS = + +ifdef DEBUG +LOCAL_CFLAGS += -g3 +endif + +# MicroBlaze specific options: +# CFLAGS += -mno-xl-soft-mul -mxl-barrel-shift + +# To compile on Plan9: +# CFLAGS += -D_BSD_EXTENSION + +# if were running on Windows build for Windows +ifdef WINDOWS +WINDOWS_BUILD=1 +endif + +# To compile as a shared library: +ifdef SHARED +# all code is position-indep with mingw, avoid warning about useless flag +ifndef WINDOWS_BUILD +LOCAL_CFLAGS += -fPIC -fpic +endif +endif + +SOEXT_TLS=so.10 +SOEXT_X509=so.0 +SOEXT_CRYPTO=so.0 + +DLEXT=so +# OSX shared library extension: +# DLEXT=dylib + +# Windows shared library extension: +ifdef WINDOWS_BUILD +DLEXT=dll +endif + +OBJS_CRYPTO= aes.o aesni.o arc4.o \ + asn1parse.o asn1write.o base64.o \ + bignum.o blowfish.o camellia.o \ + ccm.o cipher.o cipher_wrap.o \ + cmac.o ctr_drbg.o des.o \ + dhm.o ecdh.o ecdsa.o \ + ecjpake.o ecp.o \ + ecp_curves.o entropy.o entropy_poll.o \ + error.o gcm.o havege.o \ + hmac_drbg.o md.o md2.o \ + md4.o md5.o md_wrap.o \ + memory_buffer_alloc.o oid.o \ + padlock.o pem.o pk.o \ + pk_wrap.o pkcs12.o pkcs5.o \ + pkparse.o pkwrite.o platform.o \ + ripemd160.o rsa.o sha1.o \ + sha256.o sha512.o threading.o \ + timing.o version.o \ + version_features.o xtea.o + +OBJS_X509= certs.o pkcs11.o x509.o \ + x509_create.o x509_crl.o x509_crt.o \ + x509_csr.o x509write_crt.o x509write_csr.o + +OBJS_TLS= debug.o net_sockets.o \ + ssl_cache.o ssl_ciphersuites.o \ + ssl_cli.o ssl_cookie.o \ + ssl_srv.o ssl_ticket.o \ + ssl_tls.o + +.SILENT: + +.PHONY: all static shared clean + +ifndef SHARED +all: static +else +all: shared static +endif + +static: libmbedcrypto.a libmbedx509.a libmbedtls.a + +shared: libmbedcrypto.$(DLEXT) libmbedx509.$(DLEXT) libmbedtls.$(DLEXT) + +# tls +libmbedtls.a: $(OBJS_TLS) + echo " AR $@" + $(AR) -rc $@ $(OBJS_TLS) + echo " RL $@" + $(AR) -s $@ + +libmbedtls.$(SOEXT_TLS): $(OBJS_TLS) libmbedx509.so + echo " LD $@" + $(CC) -shared -Wl,-soname,$@ -L. -lmbedcrypto -lmbedx509 $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_TLS) + +libmbedtls.so: libmbedtls.$(SOEXT_TLS) + echo " LN $@ -> $<" + ln -sf $< $@ + +libmbedtls.dylib: $(OBJS_TLS) + echo " LD $@" + $(CC) -dynamiclib $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_TLS) + +libmbedtls.dll: $(OBJS_TLS) libmbedx509.dll + echo " LD $@" + $(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_TLS) -lws2_32 -lwinmm -lgdi32 -L. -lmbedcrypto -lmbedx509 -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS) + +# x509 +libmbedx509.a: $(OBJS_X509) + echo " AR $@" + $(AR) -rc $@ $(OBJS_X509) + echo " RL $@" + $(AR) -s $@ + +libmbedx509.$(SOEXT_X509): $(OBJS_X509) libmbedcrypto.so + echo " LD $@" + $(CC) -shared -Wl,-soname,$@ -L. -lmbedcrypto $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_X509) + +libmbedx509.so: libmbedx509.$(SOEXT_X509) + echo " LN $@ -> $<" + ln -sf $< $@ + +libmbedx509.dylib: $(OBJS_X509) + echo " LD $@" + $(CC) -dynamiclib $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_X509) + +libmbedx509.dll: $(OBJS_X509) libmbedcrypto.dll + echo " LD $@" + $(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_X509) -lws2_32 -lwinmm -lgdi32 -L. -lmbedcrypto -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS) + +# crypto +libmbedcrypto.a: $(OBJS_CRYPTO) + echo " AR $@" + $(AR) -rc $@ $(OBJS_CRYPTO) + echo " RL $@" + $(AR) -s $@ + +libmbedcrypto.$(SOEXT_CRYPTO): $(OBJS_CRYPTO) + echo " LD $@" + $(CC) -shared -Wl,-soname,$@ $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_CRYPTO) + +libmbedcrypto.so: libmbedcrypto.$(SOEXT_CRYPTO) + echo " LN $@ -> $<" + ln -sf $< $@ + +libmbedcrypto.dylib: $(OBJS_CRYPTO) + echo " LD $@" + $(CC) -dynamiclib $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_CRYPTO) + +libmbedcrypto.dll: $(OBJS_CRYPTO) + echo " LD $@" + $(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_CRYPTO) -lws2_32 -lwinmm -lgdi32 -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS) + +.c.o: + echo " CC $<" + $(CC) $(LOCAL_CFLAGS) $(CFLAGS) -c $< + +clean: +ifndef WINDOWS + rm -f *.o libmbed* +else + del /Q /F *.o libmbed* +endif diff --git a/mbedtls/aes.c b/mbedtls/aes.c new file mode 100644 index 0000000..a186dee --- /dev/null +++ b/mbedtls/aes.c @@ -0,0 +1,1492 @@ +/* + * FIPS-197 compliant AES implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The AES block cipher was designed by Vincent Rijmen and Joan Daemen. + * + * http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf + * http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_AES_C) + +#include + +#include "mbedtls/aes.h" +#if defined(MBEDTLS_PADLOCK_C) +#include "mbedtls/padlock.h" +#endif +#if defined(MBEDTLS_AESNI_C) +#include "mbedtls/aesni.h" +#endif + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_AES_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (little endian) + */ +#ifndef GET_UINT32_LE +#define GET_UINT32_LE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] ) \ + | ( (uint32_t) (b)[(i) + 1] << 8 ) \ + | ( (uint32_t) (b)[(i) + 2] << 16 ) \ + | ( (uint32_t) (b)[(i) + 3] << 24 ); \ +} +#endif + +#ifndef PUT_UINT32_LE +#define PUT_UINT32_LE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \ + (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \ + (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \ + (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \ +} +#endif + +#if defined(MBEDTLS_PADLOCK_C) && \ + ( defined(MBEDTLS_HAVE_X86) || defined(MBEDTLS_PADLOCK_ALIGN16) ) +static int aes_padlock_ace = -1; +#endif + +#if defined(MBEDTLS_AES_ROM_TABLES) +/* + * Forward S-box + */ +static const unsigned char FSb[256] = +{ + 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, + 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76, + 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, + 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0, + 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, + 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15, + 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, + 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75, + 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, + 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84, + 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, + 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF, + 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, + 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8, + 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, + 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2, + 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, + 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73, + 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, + 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB, + 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, + 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79, + 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, + 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08, + 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, + 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A, + 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, + 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E, + 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, + 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF, + 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, + 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16 +}; + +/* + * Forward tables + */ +#define FT \ +\ + V(A5,63,63,C6), V(84,7C,7C,F8), V(99,77,77,EE), V(8D,7B,7B,F6), \ + V(0D,F2,F2,FF), V(BD,6B,6B,D6), V(B1,6F,6F,DE), V(54,C5,C5,91), \ + V(50,30,30,60), V(03,01,01,02), V(A9,67,67,CE), V(7D,2B,2B,56), \ + V(19,FE,FE,E7), V(62,D7,D7,B5), V(E6,AB,AB,4D), V(9A,76,76,EC), \ + V(45,CA,CA,8F), V(9D,82,82,1F), V(40,C9,C9,89), V(87,7D,7D,FA), \ + V(15,FA,FA,EF), V(EB,59,59,B2), V(C9,47,47,8E), V(0B,F0,F0,FB), \ + V(EC,AD,AD,41), V(67,D4,D4,B3), V(FD,A2,A2,5F), V(EA,AF,AF,45), \ + V(BF,9C,9C,23), V(F7,A4,A4,53), V(96,72,72,E4), V(5B,C0,C0,9B), \ + V(C2,B7,B7,75), V(1C,FD,FD,E1), V(AE,93,93,3D), V(6A,26,26,4C), \ + V(5A,36,36,6C), V(41,3F,3F,7E), V(02,F7,F7,F5), V(4F,CC,CC,83), \ + V(5C,34,34,68), V(F4,A5,A5,51), V(34,E5,E5,D1), V(08,F1,F1,F9), \ + V(93,71,71,E2), V(73,D8,D8,AB), V(53,31,31,62), V(3F,15,15,2A), \ + V(0C,04,04,08), V(52,C7,C7,95), V(65,23,23,46), V(5E,C3,C3,9D), \ + V(28,18,18,30), V(A1,96,96,37), V(0F,05,05,0A), V(B5,9A,9A,2F), \ + V(09,07,07,0E), V(36,12,12,24), V(9B,80,80,1B), V(3D,E2,E2,DF), \ + V(26,EB,EB,CD), V(69,27,27,4E), V(CD,B2,B2,7F), V(9F,75,75,EA), \ + V(1B,09,09,12), V(9E,83,83,1D), V(74,2C,2C,58), V(2E,1A,1A,34), \ + V(2D,1B,1B,36), V(B2,6E,6E,DC), V(EE,5A,5A,B4), V(FB,A0,A0,5B), \ + V(F6,52,52,A4), V(4D,3B,3B,76), V(61,D6,D6,B7), V(CE,B3,B3,7D), \ + V(7B,29,29,52), V(3E,E3,E3,DD), V(71,2F,2F,5E), V(97,84,84,13), \ + V(F5,53,53,A6), V(68,D1,D1,B9), V(00,00,00,00), V(2C,ED,ED,C1), \ + V(60,20,20,40), V(1F,FC,FC,E3), V(C8,B1,B1,79), V(ED,5B,5B,B6), \ + V(BE,6A,6A,D4), V(46,CB,CB,8D), V(D9,BE,BE,67), V(4B,39,39,72), \ + V(DE,4A,4A,94), V(D4,4C,4C,98), V(E8,58,58,B0), V(4A,CF,CF,85), \ + V(6B,D0,D0,BB), V(2A,EF,EF,C5), V(E5,AA,AA,4F), V(16,FB,FB,ED), \ + V(C5,43,43,86), V(D7,4D,4D,9A), V(55,33,33,66), V(94,85,85,11), \ + V(CF,45,45,8A), V(10,F9,F9,E9), V(06,02,02,04), V(81,7F,7F,FE), \ + V(F0,50,50,A0), V(44,3C,3C,78), V(BA,9F,9F,25), V(E3,A8,A8,4B), \ + V(F3,51,51,A2), V(FE,A3,A3,5D), V(C0,40,40,80), V(8A,8F,8F,05), \ + V(AD,92,92,3F), V(BC,9D,9D,21), V(48,38,38,70), V(04,F5,F5,F1), \ + V(DF,BC,BC,63), V(C1,B6,B6,77), V(75,DA,DA,AF), V(63,21,21,42), \ + V(30,10,10,20), V(1A,FF,FF,E5), V(0E,F3,F3,FD), V(6D,D2,D2,BF), \ + V(4C,CD,CD,81), V(14,0C,0C,18), V(35,13,13,26), V(2F,EC,EC,C3), \ + V(E1,5F,5F,BE), V(A2,97,97,35), V(CC,44,44,88), V(39,17,17,2E), \ + V(57,C4,C4,93), V(F2,A7,A7,55), V(82,7E,7E,FC), V(47,3D,3D,7A), \ + V(AC,64,64,C8), V(E7,5D,5D,BA), V(2B,19,19,32), V(95,73,73,E6), \ + V(A0,60,60,C0), V(98,81,81,19), V(D1,4F,4F,9E), V(7F,DC,DC,A3), \ + V(66,22,22,44), V(7E,2A,2A,54), V(AB,90,90,3B), V(83,88,88,0B), \ + V(CA,46,46,8C), V(29,EE,EE,C7), V(D3,B8,B8,6B), V(3C,14,14,28), \ + V(79,DE,DE,A7), V(E2,5E,5E,BC), V(1D,0B,0B,16), V(76,DB,DB,AD), \ + V(3B,E0,E0,DB), V(56,32,32,64), V(4E,3A,3A,74), V(1E,0A,0A,14), \ + V(DB,49,49,92), V(0A,06,06,0C), V(6C,24,24,48), V(E4,5C,5C,B8), \ + V(5D,C2,C2,9F), V(6E,D3,D3,BD), V(EF,AC,AC,43), V(A6,62,62,C4), \ + V(A8,91,91,39), V(A4,95,95,31), V(37,E4,E4,D3), V(8B,79,79,F2), \ + V(32,E7,E7,D5), V(43,C8,C8,8B), V(59,37,37,6E), V(B7,6D,6D,DA), \ + V(8C,8D,8D,01), V(64,D5,D5,B1), V(D2,4E,4E,9C), V(E0,A9,A9,49), \ + V(B4,6C,6C,D8), V(FA,56,56,AC), V(07,F4,F4,F3), V(25,EA,EA,CF), \ + V(AF,65,65,CA), V(8E,7A,7A,F4), V(E9,AE,AE,47), V(18,08,08,10), \ + V(D5,BA,BA,6F), V(88,78,78,F0), V(6F,25,25,4A), V(72,2E,2E,5C), \ + V(24,1C,1C,38), V(F1,A6,A6,57), V(C7,B4,B4,73), V(51,C6,C6,97), \ + V(23,E8,E8,CB), V(7C,DD,DD,A1), V(9C,74,74,E8), V(21,1F,1F,3E), \ + V(DD,4B,4B,96), V(DC,BD,BD,61), V(86,8B,8B,0D), V(85,8A,8A,0F), \ + V(90,70,70,E0), V(42,3E,3E,7C), V(C4,B5,B5,71), V(AA,66,66,CC), \ + V(D8,48,48,90), V(05,03,03,06), V(01,F6,F6,F7), V(12,0E,0E,1C), \ + V(A3,61,61,C2), V(5F,35,35,6A), V(F9,57,57,AE), V(D0,B9,B9,69), \ + V(91,86,86,17), V(58,C1,C1,99), V(27,1D,1D,3A), V(B9,9E,9E,27), \ + V(38,E1,E1,D9), V(13,F8,F8,EB), V(B3,98,98,2B), V(33,11,11,22), \ + V(BB,69,69,D2), V(70,D9,D9,A9), V(89,8E,8E,07), V(A7,94,94,33), \ + V(B6,9B,9B,2D), V(22,1E,1E,3C), V(92,87,87,15), V(20,E9,E9,C9), \ + V(49,CE,CE,87), V(FF,55,55,AA), V(78,28,28,50), V(7A,DF,DF,A5), \ + V(8F,8C,8C,03), V(F8,A1,A1,59), V(80,89,89,09), V(17,0D,0D,1A), \ + V(DA,BF,BF,65), V(31,E6,E6,D7), V(C6,42,42,84), V(B8,68,68,D0), \ + V(C3,41,41,82), V(B0,99,99,29), V(77,2D,2D,5A), V(11,0F,0F,1E), \ + V(CB,B0,B0,7B), V(FC,54,54,A8), V(D6,BB,BB,6D), V(3A,16,16,2C) + +#define V(a,b,c,d) 0x##a##b##c##d +static const uint32_t FT0[256] = { FT }; +#undef V + +#define V(a,b,c,d) 0x##b##c##d##a +static const uint32_t FT1[256] = { FT }; +#undef V + +#define V(a,b,c,d) 0x##c##d##a##b +static const uint32_t FT2[256] = { FT }; +#undef V + +#define V(a,b,c,d) 0x##d##a##b##c +static const uint32_t FT3[256] = { FT }; +#undef V + +#undef FT + +/* + * Reverse S-box + */ +static const unsigned char RSb[256] = +{ + 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, + 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB, + 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, + 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB, + 0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, + 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E, + 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, + 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25, + 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, + 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92, + 0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, + 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84, + 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, + 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06, + 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, + 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B, + 0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, + 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73, + 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, + 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E, + 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, + 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B, + 0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, + 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4, + 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, + 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F, + 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, + 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF, + 0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, + 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61, + 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, + 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D +}; + +/* + * Reverse tables + */ +#define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define V(a,b,c,d) 0x##a##b##c##d +static const uint32_t RT0[256] = { RT }; +#undef V + +#define V(a,b,c,d) 0x##b##c##d##a +static const uint32_t RT1[256] = { RT }; +#undef V + +#define V(a,b,c,d) 0x##c##d##a##b +static const uint32_t RT2[256] = { RT }; +#undef V + +#define V(a,b,c,d) 0x##d##a##b##c +static const uint32_t RT3[256] = { RT }; +#undef V + +#undef RT + +/* + * Round constants + */ +static const uint32_t RCON[10] = +{ + 0x00000001, 0x00000002, 0x00000004, 0x00000008, + 0x00000010, 0x00000020, 0x00000040, 0x00000080, + 0x0000001B, 0x00000036 +}; + +#else /* MBEDTLS_AES_ROM_TABLES */ + +/* + * Forward S-box & tables + */ +static unsigned char FSb[256]; +static uint32_t FT0[256]; +static uint32_t FT1[256]; +static uint32_t FT2[256]; +static uint32_t FT3[256]; + +/* + * Reverse S-box & tables + */ +static unsigned char RSb[256]; +static uint32_t RT0[256]; +static uint32_t RT1[256]; +static uint32_t RT2[256]; +static uint32_t RT3[256]; + +/* + * Round constants + */ +static uint32_t RCON[10]; + +/* + * Tables generation code + */ +#define ROTL8(x) ( ( x << 8 ) & 0xFFFFFFFF ) | ( x >> 24 ) +#define XTIME(x) ( ( x << 1 ) ^ ( ( x & 0x80 ) ? 0x1B : 0x00 ) ) +#define MUL(x,y) ( ( x && y ) ? pow[(log[x]+log[y]) % 255] : 0 ) + +static int aes_init_done = 0; + +static void aes_gen_tables( void ) +{ + int i, x, y, z; + int pow[256]; + int log[256]; + + /* + * compute pow and log tables over GF(2^8) + */ + for( i = 0, x = 1; i < 256; i++ ) + { + pow[i] = x; + log[x] = i; + x = ( x ^ XTIME( x ) ) & 0xFF; + } + + /* + * calculate the round constants + */ + for( i = 0, x = 1; i < 10; i++ ) + { + RCON[i] = (uint32_t) x; + x = XTIME( x ) & 0xFF; + } + + /* + * generate the forward and reverse S-boxes + */ + FSb[0x00] = 0x63; + RSb[0x63] = 0x00; + + for( i = 1; i < 256; i++ ) + { + x = pow[255 - log[i]]; + + y = x; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; + x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; + x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; + x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; + x ^= y ^ 0x63; + + FSb[i] = (unsigned char) x; + RSb[x] = (unsigned char) i; + } + + /* + * generate the forward and reverse tables + */ + for( i = 0; i < 256; i++ ) + { + x = FSb[i]; + y = XTIME( x ) & 0xFF; + z = ( y ^ x ) & 0xFF; + + FT0[i] = ( (uint32_t) y ) ^ + ( (uint32_t) x << 8 ) ^ + ( (uint32_t) x << 16 ) ^ + ( (uint32_t) z << 24 ); + + FT1[i] = ROTL8( FT0[i] ); + FT2[i] = ROTL8( FT1[i] ); + FT3[i] = ROTL8( FT2[i] ); + + x = RSb[i]; + + RT0[i] = ( (uint32_t) MUL( 0x0E, x ) ) ^ + ( (uint32_t) MUL( 0x09, x ) << 8 ) ^ + ( (uint32_t) MUL( 0x0D, x ) << 16 ) ^ + ( (uint32_t) MUL( 0x0B, x ) << 24 ); + + RT1[i] = ROTL8( RT0[i] ); + RT2[i] = ROTL8( RT1[i] ); + RT3[i] = ROTL8( RT2[i] ); + } +} + +#endif /* MBEDTLS_AES_ROM_TABLES */ + +void mbedtls_aes_init( mbedtls_aes_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_aes_context ) ); +} + +void mbedtls_aes_free( mbedtls_aes_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_aes_context ) ); +} + +/* + * AES key schedule (encryption) + */ +#if !defined(MBEDTLS_AES_SETKEY_ENC_ALT) +int mbedtls_aes_setkey_enc( mbedtls_aes_context *ctx, const unsigned char *key, + unsigned int keybits ) +{ + unsigned int i; + uint32_t *RK; + +#if !defined(MBEDTLS_AES_ROM_TABLES) + if( aes_init_done == 0 ) + { + aes_gen_tables(); + aes_init_done = 1; + + } +#endif + + switch( keybits ) + { + case 128: ctx->nr = 10; break; + case 192: ctx->nr = 12; break; + case 256: ctx->nr = 14; break; + default : return( MBEDTLS_ERR_AES_INVALID_KEY_LENGTH ); + } + +#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16) + if( aes_padlock_ace == -1 ) + aes_padlock_ace = mbedtls_padlock_has_support( MBEDTLS_PADLOCK_ACE ); + + if( aes_padlock_ace ) + ctx->rk = RK = MBEDTLS_PADLOCK_ALIGN16( ctx->buf ); + else +#endif + ctx->rk = RK = ctx->buf; + +#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) + if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) ) + return( mbedtls_aesni_setkey_enc( (unsigned char *) ctx->rk, key, keybits ) ); +#endif + + for( i = 0; i < ( keybits >> 5 ); i++ ) + { + GET_UINT32_LE( RK[i], key, i << 2 ); + } + + switch( ctx->nr ) + { + case 10: + + for( i = 0; i < 10; i++, RK += 4 ) + { + RK[4] = RK[0] ^ RCON[i] ^ + ( (uint32_t) FSb[ ( RK[3] >> 8 ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( RK[3] >> 16 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( RK[3] >> 24 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( RK[3] ) & 0xFF ] << 24 ); + + RK[5] = RK[1] ^ RK[4]; + RK[6] = RK[2] ^ RK[5]; + RK[7] = RK[3] ^ RK[6]; + } + break; + + case 12: + + for( i = 0; i < 8; i++, RK += 6 ) + { + RK[6] = RK[0] ^ RCON[i] ^ + ( (uint32_t) FSb[ ( RK[5] >> 8 ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( RK[5] >> 16 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( RK[5] >> 24 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( RK[5] ) & 0xFF ] << 24 ); + + RK[7] = RK[1] ^ RK[6]; + RK[8] = RK[2] ^ RK[7]; + RK[9] = RK[3] ^ RK[8]; + RK[10] = RK[4] ^ RK[9]; + RK[11] = RK[5] ^ RK[10]; + } + break; + + case 14: + + for( i = 0; i < 7; i++, RK += 8 ) + { + RK[8] = RK[0] ^ RCON[i] ^ + ( (uint32_t) FSb[ ( RK[7] >> 8 ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( RK[7] >> 16 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( RK[7] >> 24 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( RK[7] ) & 0xFF ] << 24 ); + + RK[9] = RK[1] ^ RK[8]; + RK[10] = RK[2] ^ RK[9]; + RK[11] = RK[3] ^ RK[10]; + + RK[12] = RK[4] ^ + ( (uint32_t) FSb[ ( RK[11] ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( RK[11] >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( RK[11] >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( RK[11] >> 24 ) & 0xFF ] << 24 ); + + RK[13] = RK[5] ^ RK[12]; + RK[14] = RK[6] ^ RK[13]; + RK[15] = RK[7] ^ RK[14]; + } + break; + } + + return( 0 ); +} +#endif /* !MBEDTLS_AES_SETKEY_ENC_ALT */ + +/* + * AES key schedule (decryption) + */ +#if !defined(MBEDTLS_AES_SETKEY_DEC_ALT) +int mbedtls_aes_setkey_dec( mbedtls_aes_context *ctx, const unsigned char *key, + unsigned int keybits ) +{ + int i, j, ret; + mbedtls_aes_context cty; + uint32_t *RK; + uint32_t *SK; + + mbedtls_aes_init( &cty ); + +#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16) + if( aes_padlock_ace == -1 ) + aes_padlock_ace = mbedtls_padlock_has_support( MBEDTLS_PADLOCK_ACE ); + + if( aes_padlock_ace ) + ctx->rk = RK = MBEDTLS_PADLOCK_ALIGN16( ctx->buf ); + else +#endif + ctx->rk = RK = ctx->buf; + + /* Also checks keybits */ + if( ( ret = mbedtls_aes_setkey_enc( &cty, key, keybits ) ) != 0 ) + goto exit; + + ctx->nr = cty.nr; + +#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) + if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) ) + { + mbedtls_aesni_inverse_key( (unsigned char *) ctx->rk, + (const unsigned char *) cty.rk, ctx->nr ); + goto exit; + } +#endif + + SK = cty.rk + cty.nr * 4; + + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + + for( i = ctx->nr - 1, SK -= 8; i > 0; i--, SK -= 8 ) + { + for( j = 0; j < 4; j++, SK++ ) + { + *RK++ = RT0[ FSb[ ( *SK ) & 0xFF ] ] ^ + RT1[ FSb[ ( *SK >> 8 ) & 0xFF ] ] ^ + RT2[ FSb[ ( *SK >> 16 ) & 0xFF ] ] ^ + RT3[ FSb[ ( *SK >> 24 ) & 0xFF ] ]; + } + } + + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + +exit: + mbedtls_aes_free( &cty ); + + return( ret ); +} +#endif /* !MBEDTLS_AES_SETKEY_DEC_ALT */ + +#define AES_FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \ +{ \ + X0 = *RK++ ^ FT0[ ( Y0 ) & 0xFF ] ^ \ + FT1[ ( Y1 >> 8 ) & 0xFF ] ^ \ + FT2[ ( Y2 >> 16 ) & 0xFF ] ^ \ + FT3[ ( Y3 >> 24 ) & 0xFF ]; \ + \ + X1 = *RK++ ^ FT0[ ( Y1 ) & 0xFF ] ^ \ + FT1[ ( Y2 >> 8 ) & 0xFF ] ^ \ + FT2[ ( Y3 >> 16 ) & 0xFF ] ^ \ + FT3[ ( Y0 >> 24 ) & 0xFF ]; \ + \ + X2 = *RK++ ^ FT0[ ( Y2 ) & 0xFF ] ^ \ + FT1[ ( Y3 >> 8 ) & 0xFF ] ^ \ + FT2[ ( Y0 >> 16 ) & 0xFF ] ^ \ + FT3[ ( Y1 >> 24 ) & 0xFF ]; \ + \ + X3 = *RK++ ^ FT0[ ( Y3 ) & 0xFF ] ^ \ + FT1[ ( Y0 >> 8 ) & 0xFF ] ^ \ + FT2[ ( Y1 >> 16 ) & 0xFF ] ^ \ + FT3[ ( Y2 >> 24 ) & 0xFF ]; \ +} + +#define AES_RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \ +{ \ + X0 = *RK++ ^ RT0[ ( Y0 ) & 0xFF ] ^ \ + RT1[ ( Y3 >> 8 ) & 0xFF ] ^ \ + RT2[ ( Y2 >> 16 ) & 0xFF ] ^ \ + RT3[ ( Y1 >> 24 ) & 0xFF ]; \ + \ + X1 = *RK++ ^ RT0[ ( Y1 ) & 0xFF ] ^ \ + RT1[ ( Y0 >> 8 ) & 0xFF ] ^ \ + RT2[ ( Y3 >> 16 ) & 0xFF ] ^ \ + RT3[ ( Y2 >> 24 ) & 0xFF ]; \ + \ + X2 = *RK++ ^ RT0[ ( Y2 ) & 0xFF ] ^ \ + RT1[ ( Y1 >> 8 ) & 0xFF ] ^ \ + RT2[ ( Y0 >> 16 ) & 0xFF ] ^ \ + RT3[ ( Y3 >> 24 ) & 0xFF ]; \ + \ + X3 = *RK++ ^ RT0[ ( Y3 ) & 0xFF ] ^ \ + RT1[ ( Y2 >> 8 ) & 0xFF ] ^ \ + RT2[ ( Y1 >> 16 ) & 0xFF ] ^ \ + RT3[ ( Y0 >> 24 ) & 0xFF ]; \ +} + +/* + * AES-ECB block encryption + */ +#if !defined(MBEDTLS_AES_ENCRYPT_ALT) +void mbedtls_aes_encrypt( mbedtls_aes_context *ctx, + const unsigned char input[16], + unsigned char output[16] ) +{ + int i; + uint32_t *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3; + + RK = ctx->rk; + + GET_UINT32_LE( X0, input, 0 ); X0 ^= *RK++; + GET_UINT32_LE( X1, input, 4 ); X1 ^= *RK++; + GET_UINT32_LE( X2, input, 8 ); X2 ^= *RK++; + GET_UINT32_LE( X3, input, 12 ); X3 ^= *RK++; + + for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- ) + { + AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); + AES_FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 ); + } + + AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); + + X0 = *RK++ ^ \ + ( (uint32_t) FSb[ ( Y0 ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( Y3 >> 24 ) & 0xFF ] << 24 ); + + X1 = *RK++ ^ \ + ( (uint32_t) FSb[ ( Y1 ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( Y0 >> 24 ) & 0xFF ] << 24 ); + + X2 = *RK++ ^ \ + ( (uint32_t) FSb[ ( Y2 ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( Y1 >> 24 ) & 0xFF ] << 24 ); + + X3 = *RK++ ^ \ + ( (uint32_t) FSb[ ( Y3 ) & 0xFF ] ) ^ + ( (uint32_t) FSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) FSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) FSb[ ( Y2 >> 24 ) & 0xFF ] << 24 ); + + PUT_UINT32_LE( X0, output, 0 ); + PUT_UINT32_LE( X1, output, 4 ); + PUT_UINT32_LE( X2, output, 8 ); + PUT_UINT32_LE( X3, output, 12 ); +} +#endif /* !MBEDTLS_AES_ENCRYPT_ALT */ + +/* + * AES-ECB block decryption + */ +#if !defined(MBEDTLS_AES_DECRYPT_ALT) +void mbedtls_aes_decrypt( mbedtls_aes_context *ctx, + const unsigned char input[16], + unsigned char output[16] ) +{ + int i; + uint32_t *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3; + + RK = ctx->rk; + + GET_UINT32_LE( X0, input, 0 ); X0 ^= *RK++; + GET_UINT32_LE( X1, input, 4 ); X1 ^= *RK++; + GET_UINT32_LE( X2, input, 8 ); X2 ^= *RK++; + GET_UINT32_LE( X3, input, 12 ); X3 ^= *RK++; + + for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- ) + { + AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); + AES_RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 ); + } + + AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); + + X0 = *RK++ ^ \ + ( (uint32_t) RSb[ ( Y0 ) & 0xFF ] ) ^ + ( (uint32_t) RSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) RSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) RSb[ ( Y1 >> 24 ) & 0xFF ] << 24 ); + + X1 = *RK++ ^ \ + ( (uint32_t) RSb[ ( Y1 ) & 0xFF ] ) ^ + ( (uint32_t) RSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) RSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) RSb[ ( Y2 >> 24 ) & 0xFF ] << 24 ); + + X2 = *RK++ ^ \ + ( (uint32_t) RSb[ ( Y2 ) & 0xFF ] ) ^ + ( (uint32_t) RSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) RSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) RSb[ ( Y3 >> 24 ) & 0xFF ] << 24 ); + + X3 = *RK++ ^ \ + ( (uint32_t) RSb[ ( Y3 ) & 0xFF ] ) ^ + ( (uint32_t) RSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^ + ( (uint32_t) RSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^ + ( (uint32_t) RSb[ ( Y0 >> 24 ) & 0xFF ] << 24 ); + + PUT_UINT32_LE( X0, output, 0 ); + PUT_UINT32_LE( X1, output, 4 ); + PUT_UINT32_LE( X2, output, 8 ); + PUT_UINT32_LE( X3, output, 12 ); +} +#endif /* !MBEDTLS_AES_DECRYPT_ALT */ + +/* + * AES-ECB block encryption/decryption + */ +int mbedtls_aes_crypt_ecb( mbedtls_aes_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ) +{ +#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) + if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) ) + return( mbedtls_aesni_crypt_ecb( ctx, mode, input, output ) ); +#endif + +#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86) + if( aes_padlock_ace ) + { + if( mbedtls_padlock_xcryptecb( ctx, mode, input, output ) == 0 ) + return( 0 ); + + // If padlock data misaligned, we just fall back to + // unaccelerated mode + // + } +#endif + + if( mode == MBEDTLS_AES_ENCRYPT ) + mbedtls_aes_encrypt( ctx, input, output ); + else + mbedtls_aes_decrypt( ctx, input, output ); + + return( 0 ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/* + * AES-CBC buffer encryption/decryption + */ +int mbedtls_aes_crypt_cbc( mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ) +{ + int i; + unsigned char temp[16]; + + if( length % 16 ) + return( MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH ); + +#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86) + if( aes_padlock_ace ) + { + if( mbedtls_padlock_xcryptcbc( ctx, mode, length, iv, input, output ) == 0 ) + return( 0 ); + + // If padlock data misaligned, we just fall back to + // unaccelerated mode + // + } +#endif + + if( mode == MBEDTLS_AES_DECRYPT ) + { + while( length > 0 ) + { + memcpy( temp, input, 16 ); + mbedtls_aes_crypt_ecb( ctx, mode, input, output ); + + for( i = 0; i < 16; i++ ) + output[i] = (unsigned char)( output[i] ^ iv[i] ); + + memcpy( iv, temp, 16 ); + + input += 16; + output += 16; + length -= 16; + } + } + else + { + while( length > 0 ) + { + for( i = 0; i < 16; i++ ) + output[i] = (unsigned char)( input[i] ^ iv[i] ); + + mbedtls_aes_crypt_ecb( ctx, mode, output, output ); + memcpy( iv, output, 16 ); + + input += 16; + output += 16; + length -= 16; + } + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/* + * AES-CFB128 buffer encryption/decryption + */ +int mbedtls_aes_crypt_cfb128( mbedtls_aes_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ) +{ + int c; + size_t n = *iv_off; + + if( mode == MBEDTLS_AES_DECRYPT ) + { + while( length-- ) + { + if( n == 0 ) + mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); + + c = *input++; + *output++ = (unsigned char)( c ^ iv[n] ); + iv[n] = (unsigned char) c; + + n = ( n + 1 ) & 0x0F; + } + } + else + { + while( length-- ) + { + if( n == 0 ) + mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); + + iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ ); + + n = ( n + 1 ) & 0x0F; + } + } + + *iv_off = n; + + return( 0 ); +} + +/* + * AES-CFB8 buffer encryption/decryption + */ +int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ) +{ + unsigned char c; + unsigned char ov[17]; + + while( length-- ) + { + memcpy( ov, iv, 16 ); + mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); + + if( mode == MBEDTLS_AES_DECRYPT ) + ov[16] = *input; + + c = *output++ = (unsigned char)( iv[0] ^ *input++ ); + + if( mode == MBEDTLS_AES_ENCRYPT ) + ov[16] = c; + + memcpy( iv, ov + 1, 16 ); + } + + return( 0 ); +} +#endif /*MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/* + * AES-CTR buffer encryption/decryption + */ +int mbedtls_aes_crypt_ctr( mbedtls_aes_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[16], + unsigned char stream_block[16], + const unsigned char *input, + unsigned char *output ) +{ + int c, i; + size_t n = *nc_off; + + while( length-- ) + { + if( n == 0 ) { + mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, nonce_counter, stream_block ); + + for( i = 16; i > 0; i-- ) + if( ++nonce_counter[i - 1] != 0 ) + break; + } + c = *input++; + *output++ = (unsigned char)( c ^ stream_block[n] ); + + n = ( n + 1 ) & 0x0F; + } + + *nc_off = n; + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#endif /* !MBEDTLS_AES_ALT */ + +#if defined(MBEDTLS_SELF_TEST) +/* + * AES test vectors from: + * + * http://csrc.nist.gov/archive/aes/rijndael/rijndael-vals.zip + */ +static const unsigned char aes_test_ecb_dec[3][16] = +{ + { 0x44, 0x41, 0x6A, 0xC2, 0xD1, 0xF5, 0x3C, 0x58, + 0x33, 0x03, 0x91, 0x7E, 0x6B, 0xE9, 0xEB, 0xE0 }, + { 0x48, 0xE3, 0x1E, 0x9E, 0x25, 0x67, 0x18, 0xF2, + 0x92, 0x29, 0x31, 0x9C, 0x19, 0xF1, 0x5B, 0xA4 }, + { 0x05, 0x8C, 0xCF, 0xFD, 0xBB, 0xCB, 0x38, 0x2D, + 0x1F, 0x6F, 0x56, 0x58, 0x5D, 0x8A, 0x4A, 0xDE } +}; + +static const unsigned char aes_test_ecb_enc[3][16] = +{ + { 0xC3, 0x4C, 0x05, 0x2C, 0xC0, 0xDA, 0x8D, 0x73, + 0x45, 0x1A, 0xFE, 0x5F, 0x03, 0xBE, 0x29, 0x7F }, + { 0xF3, 0xF6, 0x75, 0x2A, 0xE8, 0xD7, 0x83, 0x11, + 0x38, 0xF0, 0x41, 0x56, 0x06, 0x31, 0xB1, 0x14 }, + { 0x8B, 0x79, 0xEE, 0xCC, 0x93, 0xA0, 0xEE, 0x5D, + 0xFF, 0x30, 0xB4, 0xEA, 0x21, 0x63, 0x6D, 0xA4 } +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const unsigned char aes_test_cbc_dec[3][16] = +{ + { 0xFA, 0xCA, 0x37, 0xE0, 0xB0, 0xC8, 0x53, 0x73, + 0xDF, 0x70, 0x6E, 0x73, 0xF7, 0xC9, 0xAF, 0x86 }, + { 0x5D, 0xF6, 0x78, 0xDD, 0x17, 0xBA, 0x4E, 0x75, + 0xB6, 0x17, 0x68, 0xC6, 0xAD, 0xEF, 0x7C, 0x7B }, + { 0x48, 0x04, 0xE1, 0x81, 0x8F, 0xE6, 0x29, 0x75, + 0x19, 0xA3, 0xE8, 0x8C, 0x57, 0x31, 0x04, 0x13 } +}; + +static const unsigned char aes_test_cbc_enc[3][16] = +{ + { 0x8A, 0x05, 0xFC, 0x5E, 0x09, 0x5A, 0xF4, 0x84, + 0x8A, 0x08, 0xD3, 0x28, 0xD3, 0x68, 0x8E, 0x3D }, + { 0x7B, 0xD9, 0x66, 0xD5, 0x3A, 0xD8, 0xC1, 0xBB, + 0x85, 0xD2, 0xAD, 0xFA, 0xE8, 0x7B, 0xB1, 0x04 }, + { 0xFE, 0x3C, 0x53, 0x65, 0x3E, 0x2F, 0x45, 0xB5, + 0x6F, 0xCD, 0x88, 0xB2, 0xCC, 0x89, 0x8F, 0xF0 } +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/* + * AES-CFB128 test vectors from: + * + * http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf + */ +static const unsigned char aes_test_cfb128_key[3][32] = +{ + { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, + 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }, + { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52, + 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5, + 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B }, + { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE, + 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81, + 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7, + 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 } +}; + +static const unsigned char aes_test_cfb128_iv[16] = +{ + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F +}; + +static const unsigned char aes_test_cfb128_pt[64] = +{ + 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96, + 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A, + 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C, + 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51, + 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11, + 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF, + 0xF6, 0x9F, 0x24, 0x45, 0xDF, 0x4F, 0x9B, 0x17, + 0xAD, 0x2B, 0x41, 0x7B, 0xE6, 0x6C, 0x37, 0x10 +}; + +static const unsigned char aes_test_cfb128_ct[3][64] = +{ + { 0x3B, 0x3F, 0xD9, 0x2E, 0xB7, 0x2D, 0xAD, 0x20, + 0x33, 0x34, 0x49, 0xF8, 0xE8, 0x3C, 0xFB, 0x4A, + 0xC8, 0xA6, 0x45, 0x37, 0xA0, 0xB3, 0xA9, 0x3F, + 0xCD, 0xE3, 0xCD, 0xAD, 0x9F, 0x1C, 0xE5, 0x8B, + 0x26, 0x75, 0x1F, 0x67, 0xA3, 0xCB, 0xB1, 0x40, + 0xB1, 0x80, 0x8C, 0xF1, 0x87, 0xA4, 0xF4, 0xDF, + 0xC0, 0x4B, 0x05, 0x35, 0x7C, 0x5D, 0x1C, 0x0E, + 0xEA, 0xC4, 0xC6, 0x6F, 0x9F, 0xF7, 0xF2, 0xE6 }, + { 0xCD, 0xC8, 0x0D, 0x6F, 0xDD, 0xF1, 0x8C, 0xAB, + 0x34, 0xC2, 0x59, 0x09, 0xC9, 0x9A, 0x41, 0x74, + 0x67, 0xCE, 0x7F, 0x7F, 0x81, 0x17, 0x36, 0x21, + 0x96, 0x1A, 0x2B, 0x70, 0x17, 0x1D, 0x3D, 0x7A, + 0x2E, 0x1E, 0x8A, 0x1D, 0xD5, 0x9B, 0x88, 0xB1, + 0xC8, 0xE6, 0x0F, 0xED, 0x1E, 0xFA, 0xC4, 0xC9, + 0xC0, 0x5F, 0x9F, 0x9C, 0xA9, 0x83, 0x4F, 0xA0, + 0x42, 0xAE, 0x8F, 0xBA, 0x58, 0x4B, 0x09, 0xFF }, + { 0xDC, 0x7E, 0x84, 0xBF, 0xDA, 0x79, 0x16, 0x4B, + 0x7E, 0xCD, 0x84, 0x86, 0x98, 0x5D, 0x38, 0x60, + 0x39, 0xFF, 0xED, 0x14, 0x3B, 0x28, 0xB1, 0xC8, + 0x32, 0x11, 0x3C, 0x63, 0x31, 0xE5, 0x40, 0x7B, + 0xDF, 0x10, 0x13, 0x24, 0x15, 0xE5, 0x4B, 0x92, + 0xA1, 0x3E, 0xD0, 0xA8, 0x26, 0x7A, 0xE2, 0xF9, + 0x75, 0xA3, 0x85, 0x74, 0x1A, 0xB9, 0xCE, 0xF8, + 0x20, 0x31, 0x62, 0x3D, 0x55, 0xB1, 0xE4, 0x71 } +}; +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/* + * AES-CTR test vectors from: + * + * http://www.faqs.org/rfcs/rfc3686.html + */ + +static const unsigned char aes_test_ctr_key[3][16] = +{ + { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC, + 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E }, + { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7, + 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 }, + { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8, + 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC } +}; + +static const unsigned char aes_test_ctr_nonce_counter[3][16] = +{ + { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, + { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59, + 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 }, + { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F, + 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 } +}; + +static const unsigned char aes_test_ctr_pt[3][48] = +{ + { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62, + 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 }, + + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F }, + + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, + 0x20, 0x21, 0x22, 0x23 } +}; + +static const unsigned char aes_test_ctr_ct[3][48] = +{ + { 0xE4, 0x09, 0x5D, 0x4F, 0xB7, 0xA7, 0xB3, 0x79, + 0x2D, 0x61, 0x75, 0xA3, 0x26, 0x13, 0x11, 0xB8 }, + { 0x51, 0x04, 0xA1, 0x06, 0x16, 0x8A, 0x72, 0xD9, + 0x79, 0x0D, 0x41, 0xEE, 0x8E, 0xDA, 0xD3, 0x88, + 0xEB, 0x2E, 0x1E, 0xFC, 0x46, 0xDA, 0x57, 0xC8, + 0xFC, 0xE6, 0x30, 0xDF, 0x91, 0x41, 0xBE, 0x28 }, + { 0xC1, 0xCF, 0x48, 0xA8, 0x9F, 0x2F, 0xFD, 0xD9, + 0xCF, 0x46, 0x52, 0xE9, 0xEF, 0xDB, 0x72, 0xD7, + 0x45, 0x40, 0xA4, 0x2B, 0xDE, 0x6D, 0x78, 0x36, + 0xD5, 0x9A, 0x5C, 0xEA, 0xAE, 0xF3, 0x10, 0x53, + 0x25, 0xB2, 0x07, 0x2F } +}; + +static const int aes_test_ctr_len[3] = + { 16, 32, 36 }; +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +/* + * Checkup routine + */ +int mbedtls_aes_self_test( int verbose ) +{ + int ret = 0, i, j, u, v; + unsigned char key[32]; + unsigned char buf[64]; +#if defined(MBEDTLS_CIPHER_MODE_CBC) || defined(MBEDTLS_CIPHER_MODE_CFB) + unsigned char iv[16]; +#endif +#if defined(MBEDTLS_CIPHER_MODE_CBC) + unsigned char prv[16]; +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) || defined(MBEDTLS_CIPHER_MODE_CFB) + size_t offset; +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + int len; + unsigned char nonce_counter[16]; + unsigned char stream_block[16]; +#endif + mbedtls_aes_context ctx; + + memset( key, 0, 32 ); + mbedtls_aes_init( &ctx ); + + /* + * ECB mode + */ + for( i = 0; i < 6; i++ ) + { + u = i >> 1; + v = i & 1; + + if( verbose != 0 ) + mbedtls_printf( " AES-ECB-%3d (%s): ", 128 + u * 64, + ( v == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); + + memset( buf, 0, 16 ); + + if( v == MBEDTLS_AES_DECRYPT ) + { + mbedtls_aes_setkey_dec( &ctx, key, 128 + u * 64 ); + + for( j = 0; j < 10000; j++ ) + mbedtls_aes_crypt_ecb( &ctx, v, buf, buf ); + + if( memcmp( buf, aes_test_ecb_dec[u], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + else + { + mbedtls_aes_setkey_enc( &ctx, key, 128 + u * 64 ); + + for( j = 0; j < 10000; j++ ) + mbedtls_aes_crypt_ecb( &ctx, v, buf, buf ); + + if( memcmp( buf, aes_test_ecb_enc[u], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + /* + * CBC mode + */ + for( i = 0; i < 6; i++ ) + { + u = i >> 1; + v = i & 1; + + if( verbose != 0 ) + mbedtls_printf( " AES-CBC-%3d (%s): ", 128 + u * 64, + ( v == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); + + memset( iv , 0, 16 ); + memset( prv, 0, 16 ); + memset( buf, 0, 16 ); + + if( v == MBEDTLS_AES_DECRYPT ) + { + mbedtls_aes_setkey_dec( &ctx, key, 128 + u * 64 ); + + for( j = 0; j < 10000; j++ ) + mbedtls_aes_crypt_cbc( &ctx, v, 16, iv, buf, buf ); + + if( memcmp( buf, aes_test_cbc_dec[u], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + else + { + mbedtls_aes_setkey_enc( &ctx, key, 128 + u * 64 ); + + for( j = 0; j < 10000; j++ ) + { + unsigned char tmp[16]; + + mbedtls_aes_crypt_cbc( &ctx, v, 16, iv, buf, buf ); + + memcpy( tmp, prv, 16 ); + memcpy( prv, buf, 16 ); + memcpy( buf, tmp, 16 ); + } + + if( memcmp( prv, aes_test_cbc_enc[u], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) + /* + * CFB128 mode + */ + for( i = 0; i < 6; i++ ) + { + u = i >> 1; + v = i & 1; + + if( verbose != 0 ) + mbedtls_printf( " AES-CFB128-%3d (%s): ", 128 + u * 64, + ( v == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); + + memcpy( iv, aes_test_cfb128_iv, 16 ); + memcpy( key, aes_test_cfb128_key[u], 16 + u * 8 ); + + offset = 0; + mbedtls_aes_setkey_enc( &ctx, key, 128 + u * 64 ); + + if( v == MBEDTLS_AES_DECRYPT ) + { + memcpy( buf, aes_test_cfb128_ct[u], 64 ); + mbedtls_aes_crypt_cfb128( &ctx, v, 64, &offset, iv, buf, buf ); + + if( memcmp( buf, aes_test_cfb128_pt, 64 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + else + { + memcpy( buf, aes_test_cfb128_pt, 64 ); + mbedtls_aes_crypt_cfb128( &ctx, v, 64, &offset, iv, buf, buf ); + + if( memcmp( buf, aes_test_cfb128_ct[u], 64 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) + /* + * CTR mode + */ + for( i = 0; i < 6; i++ ) + { + u = i >> 1; + v = i & 1; + + if( verbose != 0 ) + mbedtls_printf( " AES-CTR-128 (%s): ", + ( v == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); + + memcpy( nonce_counter, aes_test_ctr_nonce_counter[u], 16 ); + memcpy( key, aes_test_ctr_key[u], 16 ); + + offset = 0; + mbedtls_aes_setkey_enc( &ctx, key, 128 ); + + if( v == MBEDTLS_AES_DECRYPT ) + { + len = aes_test_ctr_len[u]; + memcpy( buf, aes_test_ctr_ct[u], len ); + + mbedtls_aes_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, + buf, buf ); + + if( memcmp( buf, aes_test_ctr_pt[u], len ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + else + { + len = aes_test_ctr_len[u]; + memcpy( buf, aes_test_ctr_pt[u], len ); + + mbedtls_aes_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, + buf, buf ); + + if( memcmp( buf, aes_test_ctr_ct[u], len ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + + ret = 0; + +exit: + mbedtls_aes_free( &ctx ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_AES_C */ diff --git a/mbedtls/aesni.c b/mbedtls/aesni.c new file mode 100644 index 0000000..1ca3c3e --- /dev/null +++ b/mbedtls/aesni.c @@ -0,0 +1,464 @@ +/* + * AES-NI support functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * [AES-WP] http://software.intel.com/en-us/articles/intel-advanced-encryption-standard-aes-instructions-set + * [CLMUL-WP] http://software.intel.com/en-us/articles/intel-carry-less-multiplication-instruction-and-its-usage-for-computing-the-gcm-mode/ + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_AESNI_C) + +#include "mbedtls/aesni.h" + +#include + +#ifndef asm +#define asm __asm +#endif + +#if defined(MBEDTLS_HAVE_X86_64) + +/* + * AES-NI support detection routine + */ +int mbedtls_aesni_has_support( unsigned int what ) +{ + static int done = 0; + static unsigned int c = 0; + + if( ! done ) + { + asm( "movl $1, %%eax \n\t" + "cpuid \n\t" + : "=c" (c) + : + : "eax", "ebx", "edx" ); + done = 1; + } + + return( ( c & what ) != 0 ); +} + +/* + * Binutils needs to be at least 2.19 to support AES-NI instructions. + * Unfortunately, a lot of users have a lower version now (2014-04). + * Emit bytecode directly in order to support "old" version of gas. + * + * Opcodes from the Intel architecture reference manual, vol. 3. + * We always use registers, so we don't need prefixes for memory operands. + * Operand macros are in gas order (src, dst) as opposed to Intel order + * (dst, src) in order to blend better into the surrounding assembly code. + */ +#define AESDEC ".byte 0x66,0x0F,0x38,0xDE," +#define AESDECLAST ".byte 0x66,0x0F,0x38,0xDF," +#define AESENC ".byte 0x66,0x0F,0x38,0xDC," +#define AESENCLAST ".byte 0x66,0x0F,0x38,0xDD," +#define AESIMC ".byte 0x66,0x0F,0x38,0xDB," +#define AESKEYGENA ".byte 0x66,0x0F,0x3A,0xDF," +#define PCLMULQDQ ".byte 0x66,0x0F,0x3A,0x44," + +#define xmm0_xmm0 "0xC0" +#define xmm0_xmm1 "0xC8" +#define xmm0_xmm2 "0xD0" +#define xmm0_xmm3 "0xD8" +#define xmm0_xmm4 "0xE0" +#define xmm1_xmm0 "0xC1" +#define xmm1_xmm2 "0xD1" + +/* + * AES-NI AES-ECB block en(de)cryption + */ +int mbedtls_aesni_crypt_ecb( mbedtls_aes_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ) +{ + asm( "movdqu (%3), %%xmm0 \n\t" // load input + "movdqu (%1), %%xmm1 \n\t" // load round key 0 + "pxor %%xmm1, %%xmm0 \n\t" // round 0 + "add $16, %1 \n\t" // point to next round key + "subl $1, %0 \n\t" // normal rounds = nr - 1 + "test %2, %2 \n\t" // mode? + "jz 2f \n\t" // 0 = decrypt + + "1: \n\t" // encryption loop + "movdqu (%1), %%xmm1 \n\t" // load round key + AESENC xmm1_xmm0 "\n\t" // do round + "add $16, %1 \n\t" // point to next round key + "subl $1, %0 \n\t" // loop + "jnz 1b \n\t" + "movdqu (%1), %%xmm1 \n\t" // load round key + AESENCLAST xmm1_xmm0 "\n\t" // last round + "jmp 3f \n\t" + + "2: \n\t" // decryption loop + "movdqu (%1), %%xmm1 \n\t" + AESDEC xmm1_xmm0 "\n\t" // do round + "add $16, %1 \n\t" + "subl $1, %0 \n\t" + "jnz 2b \n\t" + "movdqu (%1), %%xmm1 \n\t" // load round key + AESDECLAST xmm1_xmm0 "\n\t" // last round + + "3: \n\t" + "movdqu %%xmm0, (%4) \n\t" // export output + : + : "r" (ctx->nr), "r" (ctx->rk), "r" (mode), "r" (input), "r" (output) + : "memory", "cc", "xmm0", "xmm1" ); + + + return( 0 ); +} + +/* + * GCM multiplication: c = a times b in GF(2^128) + * Based on [CLMUL-WP] algorithms 1 (with equation 27) and 5. + */ +void mbedtls_aesni_gcm_mult( unsigned char c[16], + const unsigned char a[16], + const unsigned char b[16] ) +{ + unsigned char aa[16], bb[16], cc[16]; + size_t i; + + /* The inputs are in big-endian order, so byte-reverse them */ + for( i = 0; i < 16; i++ ) + { + aa[i] = a[15 - i]; + bb[i] = b[15 - i]; + } + + asm( "movdqu (%0), %%xmm0 \n\t" // a1:a0 + "movdqu (%1), %%xmm1 \n\t" // b1:b0 + + /* + * Caryless multiplication xmm2:xmm1 = xmm0 * xmm1 + * using [CLMUL-WP] algorithm 1 (p. 13). + */ + "movdqa %%xmm1, %%xmm2 \n\t" // copy of b1:b0 + "movdqa %%xmm1, %%xmm3 \n\t" // same + "movdqa %%xmm1, %%xmm4 \n\t" // same + PCLMULQDQ xmm0_xmm1 ",0x00 \n\t" // a0*b0 = c1:c0 + PCLMULQDQ xmm0_xmm2 ",0x11 \n\t" // a1*b1 = d1:d0 + PCLMULQDQ xmm0_xmm3 ",0x10 \n\t" // a0*b1 = e1:e0 + PCLMULQDQ xmm0_xmm4 ",0x01 \n\t" // a1*b0 = f1:f0 + "pxor %%xmm3, %%xmm4 \n\t" // e1+f1:e0+f0 + "movdqa %%xmm4, %%xmm3 \n\t" // same + "psrldq $8, %%xmm4 \n\t" // 0:e1+f1 + "pslldq $8, %%xmm3 \n\t" // e0+f0:0 + "pxor %%xmm4, %%xmm2 \n\t" // d1:d0+e1+f1 + "pxor %%xmm3, %%xmm1 \n\t" // c1+e0+f1:c0 + + /* + * Now shift the result one bit to the left, + * taking advantage of [CLMUL-WP] eq 27 (p. 20) + */ + "movdqa %%xmm1, %%xmm3 \n\t" // r1:r0 + "movdqa %%xmm2, %%xmm4 \n\t" // r3:r2 + "psllq $1, %%xmm1 \n\t" // r1<<1:r0<<1 + "psllq $1, %%xmm2 \n\t" // r3<<1:r2<<1 + "psrlq $63, %%xmm3 \n\t" // r1>>63:r0>>63 + "psrlq $63, %%xmm4 \n\t" // r3>>63:r2>>63 + "movdqa %%xmm3, %%xmm5 \n\t" // r1>>63:r0>>63 + "pslldq $8, %%xmm3 \n\t" // r0>>63:0 + "pslldq $8, %%xmm4 \n\t" // r2>>63:0 + "psrldq $8, %%xmm5 \n\t" // 0:r1>>63 + "por %%xmm3, %%xmm1 \n\t" // r1<<1|r0>>63:r0<<1 + "por %%xmm4, %%xmm2 \n\t" // r3<<1|r2>>62:r2<<1 + "por %%xmm5, %%xmm2 \n\t" // r3<<1|r2>>62:r2<<1|r1>>63 + + /* + * Now reduce modulo the GCM polynomial x^128 + x^7 + x^2 + x + 1 + * using [CLMUL-WP] algorithm 5 (p. 20). + * Currently xmm2:xmm1 holds x3:x2:x1:x0 (already shifted). + */ + /* Step 2 (1) */ + "movdqa %%xmm1, %%xmm3 \n\t" // x1:x0 + "movdqa %%xmm1, %%xmm4 \n\t" // same + "movdqa %%xmm1, %%xmm5 \n\t" // same + "psllq $63, %%xmm3 \n\t" // x1<<63:x0<<63 = stuff:a + "psllq $62, %%xmm4 \n\t" // x1<<62:x0<<62 = stuff:b + "psllq $57, %%xmm5 \n\t" // x1<<57:x0<<57 = stuff:c + + /* Step 2 (2) */ + "pxor %%xmm4, %%xmm3 \n\t" // stuff:a+b + "pxor %%xmm5, %%xmm3 \n\t" // stuff:a+b+c + "pslldq $8, %%xmm3 \n\t" // a+b+c:0 + "pxor %%xmm3, %%xmm1 \n\t" // x1+a+b+c:x0 = d:x0 + + /* Steps 3 and 4 */ + "movdqa %%xmm1,%%xmm0 \n\t" // d:x0 + "movdqa %%xmm1,%%xmm4 \n\t" // same + "movdqa %%xmm1,%%xmm5 \n\t" // same + "psrlq $1, %%xmm0 \n\t" // e1:x0>>1 = e1:e0' + "psrlq $2, %%xmm4 \n\t" // f1:x0>>2 = f1:f0' + "psrlq $7, %%xmm5 \n\t" // g1:x0>>7 = g1:g0' + "pxor %%xmm4, %%xmm0 \n\t" // e1+f1:e0'+f0' + "pxor %%xmm5, %%xmm0 \n\t" // e1+f1+g1:e0'+f0'+g0' + // e0'+f0'+g0' is almost e0+f0+g0, ex\tcept for some missing + // bits carried from d. Now get those\t bits back in. + "movdqa %%xmm1,%%xmm3 \n\t" // d:x0 + "movdqa %%xmm1,%%xmm4 \n\t" // same + "movdqa %%xmm1,%%xmm5 \n\t" // same + "psllq $63, %%xmm3 \n\t" // d<<63:stuff + "psllq $62, %%xmm4 \n\t" // d<<62:stuff + "psllq $57, %%xmm5 \n\t" // d<<57:stuff + "pxor %%xmm4, %%xmm3 \n\t" // d<<63+d<<62:stuff + "pxor %%xmm5, %%xmm3 \n\t" // missing bits of d:stuff + "psrldq $8, %%xmm3 \n\t" // 0:missing bits of d + "pxor %%xmm3, %%xmm0 \n\t" // e1+f1+g1:e0+f0+g0 + "pxor %%xmm1, %%xmm0 \n\t" // h1:h0 + "pxor %%xmm2, %%xmm0 \n\t" // x3+h1:x2+h0 + + "movdqu %%xmm0, (%2) \n\t" // done + : + : "r" (aa), "r" (bb), "r" (cc) + : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5" ); + + /* Now byte-reverse the outputs */ + for( i = 0; i < 16; i++ ) + c[i] = cc[15 - i]; + + return; +} + +/* + * Compute decryption round keys from encryption round keys + */ +void mbedtls_aesni_inverse_key( unsigned char *invkey, + const unsigned char *fwdkey, int nr ) +{ + unsigned char *ik = invkey; + const unsigned char *fk = fwdkey + 16 * nr; + + memcpy( ik, fk, 16 ); + + for( fk -= 16, ik += 16; fk > fwdkey; fk -= 16, ik += 16 ) + asm( "movdqu (%0), %%xmm0 \n\t" + AESIMC xmm0_xmm0 "\n\t" + "movdqu %%xmm0, (%1) \n\t" + : + : "r" (fk), "r" (ik) + : "memory", "xmm0" ); + + memcpy( ik, fk, 16 ); +} + +/* + * Key expansion, 128-bit case + */ +static void aesni_setkey_enc_128( unsigned char *rk, + const unsigned char *key ) +{ + asm( "movdqu (%1), %%xmm0 \n\t" // copy the original key + "movdqu %%xmm0, (%0) \n\t" // as round key 0 + "jmp 2f \n\t" // skip auxiliary routine + + /* + * Finish generating the next round key. + * + * On entry xmm0 is r3:r2:r1:r0 and xmm1 is X:stuff:stuff:stuff + * with X = rot( sub( r3 ) ) ^ RCON. + * + * On exit, xmm0 is r7:r6:r5:r4 + * with r4 = X + r0, r5 = r4 + r1, r6 = r5 + r2, r7 = r6 + r3 + * and those are written to the round key buffer. + */ + "1: \n\t" + "pshufd $0xff, %%xmm1, %%xmm1 \n\t" // X:X:X:X + "pxor %%xmm0, %%xmm1 \n\t" // X+r3:X+r2:X+r1:r4 + "pslldq $4, %%xmm0 \n\t" // r2:r1:r0:0 + "pxor %%xmm0, %%xmm1 \n\t" // X+r3+r2:X+r2+r1:r5:r4 + "pslldq $4, %%xmm0 \n\t" // etc + "pxor %%xmm0, %%xmm1 \n\t" + "pslldq $4, %%xmm0 \n\t" + "pxor %%xmm1, %%xmm0 \n\t" // update xmm0 for next time! + "add $16, %0 \n\t" // point to next round key + "movdqu %%xmm0, (%0) \n\t" // write it + "ret \n\t" + + /* Main "loop" */ + "2: \n\t" + AESKEYGENA xmm0_xmm1 ",0x01 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x02 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x04 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x08 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x10 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x20 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x40 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x80 \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x1B \n\tcall 1b \n\t" + AESKEYGENA xmm0_xmm1 ",0x36 \n\tcall 1b \n\t" + : + : "r" (rk), "r" (key) + : "memory", "cc", "0" ); +} + +/* + * Key expansion, 192-bit case + */ +static void aesni_setkey_enc_192( unsigned char *rk, + const unsigned char *key ) +{ + asm( "movdqu (%1), %%xmm0 \n\t" // copy original round key + "movdqu %%xmm0, (%0) \n\t" + "add $16, %0 \n\t" + "movq 16(%1), %%xmm1 \n\t" + "movq %%xmm1, (%0) \n\t" + "add $8, %0 \n\t" + "jmp 2f \n\t" // skip auxiliary routine + + /* + * Finish generating the next 6 quarter-keys. + * + * On entry xmm0 is r3:r2:r1:r0, xmm1 is stuff:stuff:r5:r4 + * and xmm2 is stuff:stuff:X:stuff with X = rot( sub( r3 ) ) ^ RCON. + * + * On exit, xmm0 is r9:r8:r7:r6 and xmm1 is stuff:stuff:r11:r10 + * and those are written to the round key buffer. + */ + "1: \n\t" + "pshufd $0x55, %%xmm2, %%xmm2 \n\t" // X:X:X:X + "pxor %%xmm0, %%xmm2 \n\t" // X+r3:X+r2:X+r1:r4 + "pslldq $4, %%xmm0 \n\t" // etc + "pxor %%xmm0, %%xmm2 \n\t" + "pslldq $4, %%xmm0 \n\t" + "pxor %%xmm0, %%xmm2 \n\t" + "pslldq $4, %%xmm0 \n\t" + "pxor %%xmm2, %%xmm0 \n\t" // update xmm0 = r9:r8:r7:r6 + "movdqu %%xmm0, (%0) \n\t" + "add $16, %0 \n\t" + "pshufd $0xff, %%xmm0, %%xmm2 \n\t" // r9:r9:r9:r9 + "pxor %%xmm1, %%xmm2 \n\t" // stuff:stuff:r9+r5:r10 + "pslldq $4, %%xmm1 \n\t" // r2:r1:r0:0 + "pxor %%xmm2, %%xmm1 \n\t" // xmm1 = stuff:stuff:r11:r10 + "movq %%xmm1, (%0) \n\t" + "add $8, %0 \n\t" + "ret \n\t" + + "2: \n\t" + AESKEYGENA xmm1_xmm2 ",0x01 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x02 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x04 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x08 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x10 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x20 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x40 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x80 \n\tcall 1b \n\t" + + : + : "r" (rk), "r" (key) + : "memory", "cc", "0" ); +} + +/* + * Key expansion, 256-bit case + */ +static void aesni_setkey_enc_256( unsigned char *rk, + const unsigned char *key ) +{ + asm( "movdqu (%1), %%xmm0 \n\t" + "movdqu %%xmm0, (%0) \n\t" + "add $16, %0 \n\t" + "movdqu 16(%1), %%xmm1 \n\t" + "movdqu %%xmm1, (%0) \n\t" + "jmp 2f \n\t" // skip auxiliary routine + + /* + * Finish generating the next two round keys. + * + * On entry xmm0 is r3:r2:r1:r0, xmm1 is r7:r6:r5:r4 and + * xmm2 is X:stuff:stuff:stuff with X = rot( sub( r7 )) ^ RCON + * + * On exit, xmm0 is r11:r10:r9:r8 and xmm1 is r15:r14:r13:r12 + * and those have been written to the output buffer. + */ + "1: \n\t" + "pshufd $0xff, %%xmm2, %%xmm2 \n\t" + "pxor %%xmm0, %%xmm2 \n\t" + "pslldq $4, %%xmm0 \n\t" + "pxor %%xmm0, %%xmm2 \n\t" + "pslldq $4, %%xmm0 \n\t" + "pxor %%xmm0, %%xmm2 \n\t" + "pslldq $4, %%xmm0 \n\t" + "pxor %%xmm2, %%xmm0 \n\t" + "add $16, %0 \n\t" + "movdqu %%xmm0, (%0) \n\t" + + /* Set xmm2 to stuff:Y:stuff:stuff with Y = subword( r11 ) + * and proceed to generate next round key from there */ + AESKEYGENA xmm0_xmm2 ",0x00 \n\t" + "pshufd $0xaa, %%xmm2, %%xmm2 \n\t" + "pxor %%xmm1, %%xmm2 \n\t" + "pslldq $4, %%xmm1 \n\t" + "pxor %%xmm1, %%xmm2 \n\t" + "pslldq $4, %%xmm1 \n\t" + "pxor %%xmm1, %%xmm2 \n\t" + "pslldq $4, %%xmm1 \n\t" + "pxor %%xmm2, %%xmm1 \n\t" + "add $16, %0 \n\t" + "movdqu %%xmm1, (%0) \n\t" + "ret \n\t" + + /* + * Main "loop" - Generating one more key than necessary, + * see definition of mbedtls_aes_context.buf + */ + "2: \n\t" + AESKEYGENA xmm1_xmm2 ",0x01 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x02 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x04 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x08 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x10 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x20 \n\tcall 1b \n\t" + AESKEYGENA xmm1_xmm2 ",0x40 \n\tcall 1b \n\t" + : + : "r" (rk), "r" (key) + : "memory", "cc", "0" ); +} + +/* + * Key expansion, wrapper + */ +int mbedtls_aesni_setkey_enc( unsigned char *rk, + const unsigned char *key, + size_t bits ) +{ + switch( bits ) + { + case 128: aesni_setkey_enc_128( rk, key ); break; + case 192: aesni_setkey_enc_192( rk, key ); break; + case 256: aesni_setkey_enc_256( rk, key ); break; + default : return( MBEDTLS_ERR_AES_INVALID_KEY_LENGTH ); + } + + return( 0 ); +} + +#endif /* MBEDTLS_HAVE_X86_64 */ + +#endif /* MBEDTLS_AESNI_C */ diff --git a/mbedtls/arc4.c b/mbedtls/arc4.c new file mode 100644 index 0000000..05b33d3 --- /dev/null +++ b/mbedtls/arc4.c @@ -0,0 +1,205 @@ +/* + * An implementation of the ARCFOUR algorithm + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The ARCFOUR algorithm was publicly disclosed on 94/09. + * + * http://groups.google.com/group/sci.crypt/msg/10a300c9d21afca0 + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ARC4_C) + +#include "mbedtls/arc4.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_ARC4_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +void mbedtls_arc4_init( mbedtls_arc4_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_arc4_context ) ); +} + +void mbedtls_arc4_free( mbedtls_arc4_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_arc4_context ) ); +} + +/* + * ARC4 key schedule + */ +void mbedtls_arc4_setup( mbedtls_arc4_context *ctx, const unsigned char *key, + unsigned int keylen ) +{ + int i, j, a; + unsigned int k; + unsigned char *m; + + ctx->x = 0; + ctx->y = 0; + m = ctx->m; + + for( i = 0; i < 256; i++ ) + m[i] = (unsigned char) i; + + j = k = 0; + + for( i = 0; i < 256; i++, k++ ) + { + if( k >= keylen ) k = 0; + + a = m[i]; + j = ( j + a + key[k] ) & 0xFF; + m[i] = m[j]; + m[j] = (unsigned char) a; + } +} + +/* + * ARC4 cipher function + */ +int mbedtls_arc4_crypt( mbedtls_arc4_context *ctx, size_t length, const unsigned char *input, + unsigned char *output ) +{ + int x, y, a, b; + size_t i; + unsigned char *m; + + x = ctx->x; + y = ctx->y; + m = ctx->m; + + for( i = 0; i < length; i++ ) + { + x = ( x + 1 ) & 0xFF; a = m[x]; + y = ( y + a ) & 0xFF; b = m[y]; + + m[x] = (unsigned char) b; + m[y] = (unsigned char) a; + + output[i] = (unsigned char) + ( input[i] ^ m[(unsigned char)( a + b )] ); + } + + ctx->x = x; + ctx->y = y; + + return( 0 ); +} + +#endif /* !MBEDTLS_ARC4_ALT */ + +#if defined(MBEDTLS_SELF_TEST) +/* + * ARC4 tests vectors as posted by Eric Rescorla in sep. 1994: + * + * http://groups.google.com/group/comp.security.misc/msg/10a300c9d21afca0 + */ +static const unsigned char arc4_test_key[3][8] = +{ + { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF }, + { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } +}; + +static const unsigned char arc4_test_pt[3][8] = +{ + { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } +}; + +static const unsigned char arc4_test_ct[3][8] = +{ + { 0x75, 0xB7, 0x87, 0x80, 0x99, 0xE0, 0xC5, 0x96 }, + { 0x74, 0x94, 0xC2, 0xE7, 0x10, 0x4B, 0x08, 0x79 }, + { 0xDE, 0x18, 0x89, 0x41, 0xA3, 0x37, 0x5D, 0x3A } +}; + +/* + * Checkup routine + */ +int mbedtls_arc4_self_test( int verbose ) +{ + int i, ret = 0; + unsigned char ibuf[8]; + unsigned char obuf[8]; + mbedtls_arc4_context ctx; + + mbedtls_arc4_init( &ctx ); + + for( i = 0; i < 3; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " ARC4 test #%d: ", i + 1 ); + + memcpy( ibuf, arc4_test_pt[i], 8 ); + + mbedtls_arc4_setup( &ctx, arc4_test_key[i], 8 ); + mbedtls_arc4_crypt( &ctx, 8, ibuf, obuf ); + + if( memcmp( obuf, arc4_test_ct[i], 8 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +exit: + mbedtls_arc4_free( &ctx ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_ARC4_C */ diff --git a/mbedtls/asn1parse.c b/mbedtls/asn1parse.c new file mode 100644 index 0000000..4dd65c0 --- /dev/null +++ b/mbedtls/asn1parse.c @@ -0,0 +1,393 @@ +/* + * Generic ASN.1 parsing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ASN1_PARSE_C) + +#include "mbedtls/asn1.h" + +#include + +#if defined(MBEDTLS_BIGNUM_C) +#include "mbedtls/bignum.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * ASN.1 DER decoding routines + */ +int mbedtls_asn1_get_len( unsigned char **p, + const unsigned char *end, + size_t *len ) +{ + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + if( ( **p & 0x80 ) == 0 ) + *len = *(*p)++; + else + { + switch( **p & 0x7F ) + { + case 1: + if( ( end - *p ) < 2 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + *len = (*p)[1]; + (*p) += 2; + break; + + case 2: + if( ( end - *p ) < 3 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + *len = ( (size_t)(*p)[1] << 8 ) | (*p)[2]; + (*p) += 3; + break; + + case 3: + if( ( end - *p ) < 4 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + *len = ( (size_t)(*p)[1] << 16 ) | + ( (size_t)(*p)[2] << 8 ) | (*p)[3]; + (*p) += 4; + break; + + case 4: + if( ( end - *p ) < 5 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + *len = ( (size_t)(*p)[1] << 24 ) | ( (size_t)(*p)[2] << 16 ) | + ( (size_t)(*p)[3] << 8 ) | (*p)[4]; + (*p) += 5; + break; + + default: + return( MBEDTLS_ERR_ASN1_INVALID_LENGTH ); + } + } + + if( *len > (size_t) ( end - *p ) ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + return( 0 ); +} + +int mbedtls_asn1_get_tag( unsigned char **p, + const unsigned char *end, + size_t *len, int tag ) +{ + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + if( **p != tag ) + return( MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + (*p)++; + + return( mbedtls_asn1_get_len( p, end, len ) ); +} + +int mbedtls_asn1_get_bool( unsigned char **p, + const unsigned char *end, + int *val ) +{ + int ret; + size_t len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_BOOLEAN ) ) != 0 ) + return( ret ); + + if( len != 1 ) + return( MBEDTLS_ERR_ASN1_INVALID_LENGTH ); + + *val = ( **p != 0 ) ? 1 : 0; + (*p)++; + + return( 0 ); +} + +int mbedtls_asn1_get_int( unsigned char **p, + const unsigned char *end, + int *val ) +{ + int ret; + size_t len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_INTEGER ) ) != 0 ) + return( ret ); + + if( len == 0 || len > sizeof( int ) || ( **p & 0x80 ) != 0 ) + return( MBEDTLS_ERR_ASN1_INVALID_LENGTH ); + + *val = 0; + + while( len-- > 0 ) + { + *val = ( *val << 8 ) | **p; + (*p)++; + } + + return( 0 ); +} + +#if defined(MBEDTLS_BIGNUM_C) +int mbedtls_asn1_get_mpi( unsigned char **p, + const unsigned char *end, + mbedtls_mpi *X ) +{ + int ret; + size_t len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_INTEGER ) ) != 0 ) + return( ret ); + + ret = mbedtls_mpi_read_binary( X, *p, len ); + + *p += len; + + return( ret ); +} +#endif /* MBEDTLS_BIGNUM_C */ + +int mbedtls_asn1_get_bitstring( unsigned char **p, const unsigned char *end, + mbedtls_asn1_bitstring *bs) +{ + int ret; + + /* Certificate type is a single byte bitstring */ + if( ( ret = mbedtls_asn1_get_tag( p, end, &bs->len, MBEDTLS_ASN1_BIT_STRING ) ) != 0 ) + return( ret ); + + /* Check length, subtract one for actual bit string length */ + if( bs->len < 1 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + bs->len -= 1; + + /* Get number of unused bits, ensure unused bits <= 7 */ + bs->unused_bits = **p; + if( bs->unused_bits > 7 ) + return( MBEDTLS_ERR_ASN1_INVALID_LENGTH ); + (*p)++; + + /* Get actual bitstring */ + bs->p = *p; + *p += bs->len; + + if( *p != end ) + return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * Get a bit string without unused bits + */ +int mbedtls_asn1_get_bitstring_null( unsigned char **p, const unsigned char *end, + size_t *len ) +{ + int ret; + + if( ( ret = mbedtls_asn1_get_tag( p, end, len, MBEDTLS_ASN1_BIT_STRING ) ) != 0 ) + return( ret ); + + if( (*len)-- < 2 || *(*p)++ != 0 ) + return( MBEDTLS_ERR_ASN1_INVALID_DATA ); + + return( 0 ); +} + + + +/* + * Parses and splits an ASN.1 "SEQUENCE OF " + */ +int mbedtls_asn1_get_sequence_of( unsigned char **p, + const unsigned char *end, + mbedtls_asn1_sequence *cur, + int tag) +{ + int ret; + size_t len; + mbedtls_asn1_buf *buf; + + /* Get main sequence tag */ + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( ret ); + + if( *p + len != end ) + return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + while( *p < end ) + { + buf = &(cur->buf); + buf->tag = **p; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &buf->len, tag ) ) != 0 ) + return( ret ); + + buf->p = *p; + *p += buf->len; + + /* Allocate and assign next pointer */ + if( *p < end ) + { + cur->next = (mbedtls_asn1_sequence*)mbedtls_calloc( 1, + sizeof( mbedtls_asn1_sequence ) ); + + if( cur->next == NULL ) + return( MBEDTLS_ERR_ASN1_ALLOC_FAILED ); + + cur = cur->next; + } + } + + /* Set final sequence entry's next pointer to NULL */ + cur->next = NULL; + + if( *p != end ) + return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +int mbedtls_asn1_get_alg( unsigned char **p, + const unsigned char *end, + mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params ) +{ + int ret; + size_t len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( ret ); + + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + alg->tag = **p; + end = *p + len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &alg->len, MBEDTLS_ASN1_OID ) ) != 0 ) + return( ret ); + + alg->p = *p; + *p += alg->len; + + if( *p == end ) + { + mbedtls_zeroize( params, sizeof(mbedtls_asn1_buf) ); + return( 0 ); + } + + params->tag = **p; + (*p)++; + + if( ( ret = mbedtls_asn1_get_len( p, end, ¶ms->len ) ) != 0 ) + return( ret ); + + params->p = *p; + *p += params->len; + + if( *p != end ) + return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +int mbedtls_asn1_get_alg_null( unsigned char **p, + const unsigned char *end, + mbedtls_asn1_buf *alg ) +{ + int ret; + mbedtls_asn1_buf params; + + memset( ¶ms, 0, sizeof(mbedtls_asn1_buf) ); + + if( ( ret = mbedtls_asn1_get_alg( p, end, alg, ¶ms ) ) != 0 ) + return( ret ); + + if( ( params.tag != MBEDTLS_ASN1_NULL && params.tag != 0 ) || params.len != 0 ) + return( MBEDTLS_ERR_ASN1_INVALID_DATA ); + + return( 0 ); +} + +void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *cur ) +{ + if( cur == NULL ) + return; + + mbedtls_free( cur->oid.p ); + mbedtls_free( cur->val.p ); + + mbedtls_zeroize( cur, sizeof( mbedtls_asn1_named_data ) ); +} + +void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head ) +{ + mbedtls_asn1_named_data *cur; + + while( ( cur = *head ) != NULL ) + { + *head = cur->next; + mbedtls_asn1_free_named_data( cur ); + mbedtls_free( cur ); + } +} + +mbedtls_asn1_named_data *mbedtls_asn1_find_named_data( mbedtls_asn1_named_data *list, + const char *oid, size_t len ) +{ + while( list != NULL ) + { + if( list->oid.len == len && + memcmp( list->oid.p, oid, len ) == 0 ) + { + break; + } + + list = list->next; + } + + return( list ); +} + +#endif /* MBEDTLS_ASN1_PARSE_C */ diff --git a/mbedtls/asn1write.c b/mbedtls/asn1write.c new file mode 100644 index 0000000..69b61b2 --- /dev/null +++ b/mbedtls/asn1write.c @@ -0,0 +1,390 @@ +/* + * ASN.1 buffer writing functionality + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ASN1_WRITE_C) + +#include "mbedtls/asn1write.h" + +#include + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start, size_t len ) +{ + if( len < 0x80 ) + { + if( *p - start < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = (unsigned char) len; + return( 1 ); + } + + if( len <= 0xFF ) + { + if( *p - start < 2 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = (unsigned char) len; + *--(*p) = 0x81; + return( 2 ); + } + + if( len <= 0xFFFF ) + { + if( *p - start < 3 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = ( len ) & 0xFF; + *--(*p) = ( len >> 8 ) & 0xFF; + *--(*p) = 0x82; + return( 3 ); + } + + if( len <= 0xFFFFFF ) + { + if( *p - start < 4 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = ( len ) & 0xFF; + *--(*p) = ( len >> 8 ) & 0xFF; + *--(*p) = ( len >> 16 ) & 0xFF; + *--(*p) = 0x83; + return( 4 ); + } + + if( len <= 0xFFFFFFFF ) + { + if( *p - start < 5 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = ( len ) & 0xFF; + *--(*p) = ( len >> 8 ) & 0xFF; + *--(*p) = ( len >> 16 ) & 0xFF; + *--(*p) = ( len >> 24 ) & 0xFF; + *--(*p) = 0x84; + return( 5 ); + } + + return( MBEDTLS_ERR_ASN1_INVALID_LENGTH ); +} + +int mbedtls_asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag ) +{ + if( *p - start < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = tag; + + return( 1 ); +} + +int mbedtls_asn1_write_raw_buffer( unsigned char **p, unsigned char *start, + const unsigned char *buf, size_t size ) +{ + size_t len = 0; + + if( *p < start || (size_t)( *p - start ) < size ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + len = size; + (*p) -= len; + memcpy( *p, buf, len ); + + return( (int) len ); +} + +#if defined(MBEDTLS_BIGNUM_C) +int mbedtls_asn1_write_mpi( unsigned char **p, unsigned char *start, const mbedtls_mpi *X ) +{ + int ret; + size_t len = 0; + + // Write the MPI + // + len = mbedtls_mpi_size( X ); + + if( *p < start || (size_t)( *p - start ) < len ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + (*p) -= len; + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( X, *p, len ) ); + + // DER format assumes 2s complement for numbers, so the leftmost bit + // should be 0 for positive numbers and 1 for negative numbers. + // + if( X->s ==1 && **p & 0x80 ) + { + if( *p - start < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = 0x00; + len += 1; + } + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_INTEGER ) ); + + ret = (int) len; + +cleanup: + return( ret ); +} +#endif /* MBEDTLS_BIGNUM_C */ + +int mbedtls_asn1_write_null( unsigned char **p, unsigned char *start ) +{ + int ret; + size_t len = 0; + + // Write NULL + // + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, 0) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_NULL ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_oid( unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len ) +{ + int ret; + size_t len = 0; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, + (const unsigned char *) oid, oid_len ) ); + MBEDTLS_ASN1_CHK_ADD( len , mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len , mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len, + size_t par_len ) +{ + int ret; + size_t len = 0; + + if( par_len == 0 ) + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_null( p, start ) ); + else + len += par_len; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_bool( unsigned char **p, unsigned char *start, int boolean ) +{ + int ret; + size_t len = 0; + + if( *p - start < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = (boolean) ? 255 : 0; + len++; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BOOLEAN ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_int( unsigned char **p, unsigned char *start, int val ) +{ + int ret; + size_t len = 0; + + // TODO negative values and values larger than 128 + // DER format assumes 2s complement for numbers, so the leftmost bit + // should be 0 for positive numbers and 1 for negative numbers. + // + if( *p - start < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + len += 1; + *--(*p) = val; + + if( val > 0 && **p & 0x80 ) + { + if( *p - start < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = 0x00; + len += 1; + } + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_INTEGER ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_printable_string( unsigned char **p, unsigned char *start, + const char *text, size_t text_len ) +{ + int ret; + size_t len = 0; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, + (const unsigned char *) text, text_len ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_PRINTABLE_STRING ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_ia5_string( unsigned char **p, unsigned char *start, + const char *text, size_t text_len ) +{ + int ret; + size_t len = 0; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, + (const unsigned char *) text, text_len ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_IA5_STRING ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_bitstring( unsigned char **p, unsigned char *start, + const unsigned char *buf, size_t bits ) +{ + int ret; + size_t len = 0, size; + + size = ( bits / 8 ) + ( ( bits % 8 ) ? 1 : 0 ); + + // Calculate byte length + // + if( *p < start || (size_t)( *p - start ) < size + 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + len = size + 1; + (*p) -= size; + memcpy( *p, buf, size ); + + // Write unused bits + // + *--(*p) = (unsigned char) (size * 8 - bits); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) ); + + return( (int) len ); +} + +int mbedtls_asn1_write_octet_string( unsigned char **p, unsigned char *start, + const unsigned char *buf, size_t size ) +{ + int ret; + size_t len = 0; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, buf, size ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) ); + + return( (int) len ); +} + +mbedtls_asn1_named_data *mbedtls_asn1_store_named_data( mbedtls_asn1_named_data **head, + const char *oid, size_t oid_len, + const unsigned char *val, + size_t val_len ) +{ + mbedtls_asn1_named_data *cur; + + if( ( cur = mbedtls_asn1_find_named_data( *head, oid, oid_len ) ) == NULL ) + { + // Add new entry if not present yet based on OID + // + cur = (mbedtls_asn1_named_data*)mbedtls_calloc( 1, + sizeof(mbedtls_asn1_named_data) ); + if( cur == NULL ) + return( NULL ); + + cur->oid.len = oid_len; + cur->oid.p = mbedtls_calloc( 1, oid_len ); + if( cur->oid.p == NULL ) + { + mbedtls_free( cur ); + return( NULL ); + } + + memcpy( cur->oid.p, oid, oid_len ); + + cur->val.len = val_len; + cur->val.p = mbedtls_calloc( 1, val_len ); + if( cur->val.p == NULL ) + { + mbedtls_free( cur->oid.p ); + mbedtls_free( cur ); + return( NULL ); + } + + cur->next = *head; + *head = cur; + } + else if( cur->val.len < val_len ) + { + /* + * Enlarge existing value buffer if needed + * Preserve old data until the allocation succeeded, to leave list in + * a consistent state in case allocation fails. + */ + void *p = mbedtls_calloc( 1, val_len ); + if( p == NULL ) + return( NULL ); + + mbedtls_free( cur->val.p ); + cur->val.p = p; + cur->val.len = val_len; + } + + if( val != NULL ) + memcpy( cur->val.p, val, val_len ); + + return( cur ); +} +#endif /* MBEDTLS_ASN1_WRITE_C */ diff --git a/mbedtls/base64.c b/mbedtls/base64.c new file mode 100644 index 0000000..5cb12cb --- /dev/null +++ b/mbedtls/base64.c @@ -0,0 +1,289 @@ +/* + * RFC 1521 base64 encoding/decoding + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_BASE64_C) + +#include "mbedtls/base64.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#include +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +static const unsigned char base64_enc_map[64] = +{ + 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', + 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', + 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', + 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', + 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', + 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', '+', '/' +}; + +static const unsigned char base64_dec_map[128] = +{ + 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, + 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, + 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, + 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, + 127, 127, 127, 62, 127, 127, 127, 63, 52, 53, + 54, 55, 56, 57, 58, 59, 60, 61, 127, 127, + 127, 64, 127, 127, 127, 0, 1, 2, 3, 4, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 127, 127, 127, 127, 127, 127, 26, 27, 28, + 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, + 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 127, 127, 127, 127, 127 +}; + +#define BASE64_SIZE_T_MAX ( (size_t) -1 ) /* SIZE_T_MAX is not standard */ + +/* + * Encode a buffer into base64 format + */ +int mbedtls_base64_encode( unsigned char *dst, size_t dlen, size_t *olen, + const unsigned char *src, size_t slen ) +{ + size_t i, n; + int C1, C2, C3; + unsigned char *p; + + if( slen == 0 ) + { + *olen = 0; + return( 0 ); + } + + n = slen / 3 + ( slen % 3 != 0 ); + + if( n > ( BASE64_SIZE_T_MAX - 1 ) / 4 ) + { + *olen = BASE64_SIZE_T_MAX; + return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL ); + } + + n *= 4; + + if( ( dlen < n + 1 ) || ( NULL == dst ) ) + { + *olen = n + 1; + return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL ); + } + + n = ( slen / 3 ) * 3; + + for( i = 0, p = dst; i < n; i += 3 ) + { + C1 = *src++; + C2 = *src++; + C3 = *src++; + + *p++ = base64_enc_map[(C1 >> 2) & 0x3F]; + *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F]; + *p++ = base64_enc_map[(((C2 & 15) << 2) + (C3 >> 6)) & 0x3F]; + *p++ = base64_enc_map[C3 & 0x3F]; + } + + if( i < slen ) + { + C1 = *src++; + C2 = ( ( i + 1 ) < slen ) ? *src++ : 0; + + *p++ = base64_enc_map[(C1 >> 2) & 0x3F]; + *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F]; + + if( ( i + 1 ) < slen ) + *p++ = base64_enc_map[((C2 & 15) << 2) & 0x3F]; + else *p++ = '='; + + *p++ = '='; + } + + *olen = p - dst; + *p = 0; + + return( 0 ); +} + +/* + * Decode a base64-formatted buffer + */ +int mbedtls_base64_decode( unsigned char *dst, size_t dlen, size_t *olen, + const unsigned char *src, size_t slen ) +{ + size_t i, n; + uint32_t j, x; + unsigned char *p; + + /* First pass: check for validity and get output length */ + for( i = n = j = 0; i < slen; i++ ) + { + /* Skip spaces before checking for EOL */ + x = 0; + while( i < slen && src[i] == ' ' ) + { + ++i; + ++x; + } + + /* Spaces at end of buffer are OK */ + if( i == slen ) + break; + + if( ( slen - i ) >= 2 && + src[i] == '\r' && src[i + 1] == '\n' ) + continue; + + if( src[i] == '\n' ) + continue; + + /* Space inside a line is an error */ + if( x != 0 ) + return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER ); + + if( src[i] == '=' && ++j > 2 ) + return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER ); + + if( src[i] > 127 || base64_dec_map[src[i]] == 127 ) + return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER ); + + if( base64_dec_map[src[i]] < 64 && j != 0 ) + return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER ); + + n++; + } + + if( n == 0 ) + { + *olen = 0; + return( 0 ); + } + + n = ( ( n * 6 ) + 7 ) >> 3; + n -= j; + + if( dst == NULL || dlen < n ) + { + *olen = n; + return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL ); + } + + for( j = 3, n = x = 0, p = dst; i > 0; i--, src++ ) + { + if( *src == '\r' || *src == '\n' || *src == ' ' ) + continue; + + j -= ( base64_dec_map[*src] == 64 ); + x = ( x << 6 ) | ( base64_dec_map[*src] & 0x3F ); + + if( ++n == 4 ) + { + n = 0; + if( j > 0 ) *p++ = (unsigned char)( x >> 16 ); + if( j > 1 ) *p++ = (unsigned char)( x >> 8 ); + if( j > 2 ) *p++ = (unsigned char)( x ); + } + } + + *olen = p - dst; + + return( 0 ); +} + +#if defined(MBEDTLS_SELF_TEST) + +static const unsigned char base64_test_dec[64] = +{ + 0x24, 0x48, 0x6E, 0x56, 0x87, 0x62, 0x5A, 0xBD, + 0xBF, 0x17, 0xD9, 0xA2, 0xC4, 0x17, 0x1A, 0x01, + 0x94, 0xED, 0x8F, 0x1E, 0x11, 0xB3, 0xD7, 0x09, + 0x0C, 0xB6, 0xE9, 0x10, 0x6F, 0x22, 0xEE, 0x13, + 0xCA, 0xB3, 0x07, 0x05, 0x76, 0xC9, 0xFA, 0x31, + 0x6C, 0x08, 0x34, 0xFF, 0x8D, 0xC2, 0x6C, 0x38, + 0x00, 0x43, 0xE9, 0x54, 0x97, 0xAF, 0x50, 0x4B, + 0xD1, 0x41, 0xBA, 0x95, 0x31, 0x5A, 0x0B, 0x97 +}; + +static const unsigned char base64_test_enc[] = + "JEhuVodiWr2/F9mixBcaAZTtjx4Rs9cJDLbpEG8i7hPK" + "swcFdsn6MWwINP+Nwmw4AEPpVJevUEvRQbqVMVoLlw=="; + +/* + * Checkup routine + */ +int mbedtls_base64_self_test( int verbose ) +{ + size_t len; + const unsigned char *src; + unsigned char buffer[128]; + + if( verbose != 0 ) + mbedtls_printf( " Base64 encoding test: " ); + + src = base64_test_dec; + + if( mbedtls_base64_encode( buffer, sizeof( buffer ), &len, src, 64 ) != 0 || + memcmp( base64_test_enc, buffer, 88 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n Base64 decoding test: " ); + + src = base64_test_enc; + + if( mbedtls_base64_decode( buffer, sizeof( buffer ), &len, src, 88 ) != 0 || + memcmp( base64_test_dec, buffer, 64 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_BASE64_C */ diff --git a/mbedtls/bignum.c b/mbedtls/bignum.c new file mode 100644 index 0000000..4c99e04 --- /dev/null +++ b/mbedtls/bignum.c @@ -0,0 +1,2442 @@ +/* + * Multi-precision integer library + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * The following sources were referenced in the design of this Multi-precision + * Integer library: + * + * [1] Handbook of Applied Cryptography - 1997 + * Menezes, van Oorschot and Vanstone + * + * [2] Multi-Precision Math + * Tom St Denis + * https://github.com/libtom/libtommath/blob/develop/tommath.pdf + * + * [3] GNU Multi-Precision Arithmetic Library + * https://gmplib.org/manual/index.html + * + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_BIGNUM_C) + +#include "mbedtls/bignum.h" +#include "mbedtls/bn_mul.h" + +#include + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_printf printf +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_mpi_zeroize( mbedtls_mpi_uint *v, size_t n ) { + volatile mbedtls_mpi_uint *p = v; while( n-- ) *p++ = 0; +} + +#define ciL (sizeof(mbedtls_mpi_uint)) /* chars in limb */ +#define biL (ciL << 3) /* bits in limb */ +#define biH (ciL << 2) /* half limb size */ + +#define MPI_SIZE_T_MAX ( (size_t) -1 ) /* SIZE_T_MAX is not standard */ + +/* + * Convert between bits/chars and number of limbs + * Divide first in order to avoid potential overflows + */ +#define BITS_TO_LIMBS(i) ( (i) / biL + ( (i) % biL != 0 ) ) +#define CHARS_TO_LIMBS(i) ( (i) / ciL + ( (i) % ciL != 0 ) ) + +/* + * Initialize one MPI + */ +void mbedtls_mpi_init( mbedtls_mpi *X ) +{ + if( X == NULL ) + return; + + X->s = 1; + X->n = 0; + X->p = NULL; +} + +/* + * Unallocate one MPI + */ +void mbedtls_mpi_free( mbedtls_mpi *X ) +{ + if( X == NULL ) + return; + + if( X->p != NULL ) + { + mbedtls_mpi_zeroize( X->p, X->n ); + mbedtls_free( X->p ); + } + + X->s = 1; + X->n = 0; + X->p = NULL; +} + +/* + * Enlarge to the specified number of limbs + */ +int mbedtls_mpi_grow( mbedtls_mpi *X, size_t nblimbs ) +{ + mbedtls_mpi_uint *p; + + if( nblimbs > MBEDTLS_MPI_MAX_LIMBS ) + return( MBEDTLS_ERR_MPI_ALLOC_FAILED ); + + if( X->n < nblimbs ) + { + if( ( p = (mbedtls_mpi_uint*)mbedtls_calloc( nblimbs, ciL ) ) == NULL ) + return( MBEDTLS_ERR_MPI_ALLOC_FAILED ); + + if( X->p != NULL ) + { + memcpy( p, X->p, X->n * ciL ); + mbedtls_mpi_zeroize( X->p, X->n ); + mbedtls_free( X->p ); + } + + X->n = nblimbs; + X->p = p; + } + + return( 0 ); +} + +/* + * Resize down as much as possible, + * while keeping at least the specified number of limbs + */ +int mbedtls_mpi_shrink( mbedtls_mpi *X, size_t nblimbs ) +{ + mbedtls_mpi_uint *p; + size_t i; + + /* Actually resize up in this case */ + if( X->n <= nblimbs ) + return( mbedtls_mpi_grow( X, nblimbs ) ); + + for( i = X->n - 1; i > 0; i-- ) + if( X->p[i] != 0 ) + break; + i++; + + if( i < nblimbs ) + i = nblimbs; + + if( ( p = (mbedtls_mpi_uint*)mbedtls_calloc( i, ciL ) ) == NULL ) + return( MBEDTLS_ERR_MPI_ALLOC_FAILED ); + + if( X->p != NULL ) + { + memcpy( p, X->p, i * ciL ); + mbedtls_mpi_zeroize( X->p, X->n ); + mbedtls_free( X->p ); + } + + X->n = i; + X->p = p; + + return( 0 ); +} + +/* + * Copy the contents of Y into X + */ +int mbedtls_mpi_copy( mbedtls_mpi *X, const mbedtls_mpi *Y ) +{ + int ret; + size_t i; + + if( X == Y ) + return( 0 ); + + if( Y->p == NULL ) + { + mbedtls_mpi_free( X ); + return( 0 ); + } + + for( i = Y->n - 1; i > 0; i-- ) + if( Y->p[i] != 0 ) + break; + i++; + + X->s = Y->s; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i ) ); + + memset( X->p, 0, X->n * ciL ); + memcpy( X->p, Y->p, i * ciL ); + +cleanup: + + return( ret ); +} + +/* + * Swap the contents of X and Y + */ +void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y ) +{ + mbedtls_mpi T; + + memcpy( &T, X, sizeof( mbedtls_mpi ) ); + memcpy( X, Y, sizeof( mbedtls_mpi ) ); + memcpy( Y, &T, sizeof( mbedtls_mpi ) ); +} + +/* + * Conditionally assign X = Y, without leaking information + * about whether the assignment was made or not. + * (Leaking information about the respective sizes of X and Y is ok however.) + */ +int mbedtls_mpi_safe_cond_assign( mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned char assign ) +{ + int ret = 0; + size_t i; + + /* make sure assign is 0 or 1 in a time-constant manner */ + assign = (assign | (unsigned char)-assign) >> 7; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, Y->n ) ); + + X->s = X->s * ( 1 - assign ) + Y->s * assign; + + for( i = 0; i < Y->n; i++ ) + X->p[i] = X->p[i] * ( 1 - assign ) + Y->p[i] * assign; + + for( ; i < X->n; i++ ) + X->p[i] *= ( 1 - assign ); + +cleanup: + return( ret ); +} + +/* + * Conditionally swap X and Y, without leaking information + * about whether the swap was made or not. + * Here it is not ok to simply swap the pointers, which whould lead to + * different memory access patterns when X and Y are used afterwards. + */ +int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char swap ) +{ + int ret, s; + size_t i; + mbedtls_mpi_uint tmp; + + if( X == Y ) + return( 0 ); + + /* make sure swap is 0 or 1 in a time-constant manner */ + swap = (swap | (unsigned char)-swap) >> 7; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, Y->n ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( Y, X->n ) ); + + s = X->s; + X->s = X->s * ( 1 - swap ) + Y->s * swap; + Y->s = Y->s * ( 1 - swap ) + s * swap; + + + for( i = 0; i < X->n; i++ ) + { + tmp = X->p[i]; + X->p[i] = X->p[i] * ( 1 - swap ) + Y->p[i] * swap; + Y->p[i] = Y->p[i] * ( 1 - swap ) + tmp * swap; + } + +cleanup: + return( ret ); +} + +/* + * Set value from integer + */ +int mbedtls_mpi_lset( mbedtls_mpi *X, mbedtls_mpi_sint z ) +{ + int ret; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, 1 ) ); + memset( X->p, 0, X->n * ciL ); + + X->p[0] = ( z < 0 ) ? -z : z; + X->s = ( z < 0 ) ? -1 : 1; + +cleanup: + + return( ret ); +} + +/* + * Get a specific bit + */ +int mbedtls_mpi_get_bit( const mbedtls_mpi *X, size_t pos ) +{ + if( X->n * biL <= pos ) + return( 0 ); + + return( ( X->p[pos / biL] >> ( pos % biL ) ) & 0x01 ); +} + +/* + * Set a bit to a specific value of 0 or 1 + */ +int mbedtls_mpi_set_bit( mbedtls_mpi *X, size_t pos, unsigned char val ) +{ + int ret = 0; + size_t off = pos / biL; + size_t idx = pos % biL; + + if( val != 0 && val != 1 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + if( X->n * biL <= pos ) + { + if( val == 0 ) + return( 0 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, off + 1 ) ); + } + + X->p[off] &= ~( (mbedtls_mpi_uint) 0x01 << idx ); + X->p[off] |= (mbedtls_mpi_uint) val << idx; + +cleanup: + + return( ret ); +} + +/* + * Return the number of less significant zero-bits + */ +size_t mbedtls_mpi_lsb( const mbedtls_mpi *X ) +{ + size_t i, j, count = 0; + + for( i = 0; i < X->n; i++ ) + for( j = 0; j < biL; j++, count++ ) + if( ( ( X->p[i] >> j ) & 1 ) != 0 ) + return( count ); + + return( 0 ); +} + +/* + * Count leading zero bits in a given integer + */ +static size_t mbedtls_clz( const mbedtls_mpi_uint x ) +{ + size_t j; + mbedtls_mpi_uint mask = (mbedtls_mpi_uint) 1 << (biL - 1); + + for( j = 0; j < biL; j++ ) + { + if( x & mask ) break; + + mask >>= 1; + } + + return j; +} + +/* + * Return the number of bits + */ +size_t mbedtls_mpi_bitlen( const mbedtls_mpi *X ) +{ + size_t i, j; + + if( X->n == 0 ) + return( 0 ); + + for( i = X->n - 1; i > 0; i-- ) + if( X->p[i] != 0 ) + break; + + j = biL - mbedtls_clz( X->p[i] ); + + return( ( i * biL ) + j ); +} + +/* + * Return the total size in bytes + */ +size_t mbedtls_mpi_size( const mbedtls_mpi *X ) +{ + return( ( mbedtls_mpi_bitlen( X ) + 7 ) >> 3 ); +} + +/* + * Convert an ASCII character to digit value + */ +static int mpi_get_digit( mbedtls_mpi_uint *d, int radix, char c ) +{ + *d = 255; + + if( c >= 0x30 && c <= 0x39 ) *d = c - 0x30; + if( c >= 0x41 && c <= 0x46 ) *d = c - 0x37; + if( c >= 0x61 && c <= 0x66 ) *d = c - 0x57; + + if( *d >= (mbedtls_mpi_uint) radix ) + return( MBEDTLS_ERR_MPI_INVALID_CHARACTER ); + + return( 0 ); +} + +/* + * Import from an ASCII string + */ +int mbedtls_mpi_read_string( mbedtls_mpi *X, int radix, const char *s ) +{ + int ret; + size_t i, j, slen, n; + mbedtls_mpi_uint d; + mbedtls_mpi T; + + if( radix < 2 || radix > 16 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &T ); + + slen = strlen( s ); + + if( radix == 16 ) + { + if( slen > MPI_SIZE_T_MAX >> 2 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + n = BITS_TO_LIMBS( slen << 2 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, n ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( X, 0 ) ); + + for( i = slen, j = 0; i > 0; i--, j++ ) + { + if( i == 1 && s[i - 1] == '-' ) + { + X->s = -1; + break; + } + + MBEDTLS_MPI_CHK( mpi_get_digit( &d, radix, s[i - 1] ) ); + X->p[j / ( 2 * ciL )] |= d << ( ( j % ( 2 * ciL ) ) << 2 ); + } + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( X, 0 ) ); + + for( i = 0; i < slen; i++ ) + { + if( i == 0 && s[i] == '-' ) + { + X->s = -1; + continue; + } + + MBEDTLS_MPI_CHK( mpi_get_digit( &d, radix, s[i] ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T, X, radix ) ); + + if( X->s == 1 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, &T, d ) ); + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( X, &T, d ) ); + } + } + } + +cleanup: + + mbedtls_mpi_free( &T ); + + return( ret ); +} + +/* + * Helper to write the digits high-order first + */ +static int mpi_write_hlp( mbedtls_mpi *X, int radix, char **p ) +{ + int ret; + mbedtls_mpi_uint r; + + if( radix < 2 || radix > 16 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_int( &r, X, radix ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_div_int( X, NULL, X, radix ) ); + + if( mbedtls_mpi_cmp_int( X, 0 ) != 0 ) + MBEDTLS_MPI_CHK( mpi_write_hlp( X, radix, p ) ); + + if( r < 10 ) + *(*p)++ = (char)( r + 0x30 ); + else + *(*p)++ = (char)( r + 0x37 ); + +cleanup: + + return( ret ); +} + +/* + * Export into an ASCII string + */ +int mbedtls_mpi_write_string( const mbedtls_mpi *X, int radix, + char *buf, size_t buflen, size_t *olen ) +{ + int ret = 0; + size_t n; + char *p; + mbedtls_mpi T; + + if( radix < 2 || radix > 16 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + n = mbedtls_mpi_bitlen( X ); + if( radix >= 4 ) n >>= 1; + if( radix >= 16 ) n >>= 1; + n += 3; + + if( buflen < n ) + { + *olen = n; + return( MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL ); + } + + p = buf; + mbedtls_mpi_init( &T ); + + if( X->s == -1 ) + *p++ = '-'; + + if( radix == 16 ) + { + int c; + size_t i, j, k; + + for( i = X->n, k = 0; i > 0; i-- ) + { + for( j = ciL; j > 0; j-- ) + { + c = ( X->p[i - 1] >> ( ( j - 1 ) << 3) ) & 0xFF; + + if( c == 0 && k == 0 && ( i + j ) != 2 ) + continue; + + *(p++) = "0123456789ABCDEF" [c / 16]; + *(p++) = "0123456789ABCDEF" [c % 16]; + k = 1; + } + } + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &T, X ) ); + + if( T.s == -1 ) + T.s = 1; + + MBEDTLS_MPI_CHK( mpi_write_hlp( &T, radix, &p ) ); + } + + *p++ = '\0'; + *olen = p - buf; + +cleanup: + + mbedtls_mpi_free( &T ); + + return( ret ); +} + +#if defined(MBEDTLS_FS_IO) +/* + * Read X from an opened file + */ +int mbedtls_mpi_read_file( mbedtls_mpi *X, int radix, FILE *fin ) +{ + mbedtls_mpi_uint d; + size_t slen; + char *p; + /* + * Buffer should have space for (short) label and decimal formatted MPI, + * newline characters and '\0' + */ + char s[ MBEDTLS_MPI_RW_BUFFER_SIZE ]; + + memset( s, 0, sizeof( s ) ); + if( fgets( s, sizeof( s ) - 1, fin ) == NULL ) + return( MBEDTLS_ERR_MPI_FILE_IO_ERROR ); + + slen = strlen( s ); + if( slen == sizeof( s ) - 2 ) + return( MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL ); + + if( s[slen - 1] == '\n' ) { slen--; s[slen] = '\0'; } + if( s[slen - 1] == '\r' ) { slen--; s[slen] = '\0'; } + + p = s + slen; + while( --p >= s ) + if( mpi_get_digit( &d, radix, *p ) != 0 ) + break; + + return( mbedtls_mpi_read_string( X, radix, p + 1 ) ); +} + +/* + * Write X into an opened file (or stdout if fout == NULL) + */ +int mbedtls_mpi_write_file( const char *p, const mbedtls_mpi *X, int radix, FILE *fout ) +{ + int ret; + size_t n, slen, plen; + /* + * Buffer should have space for (short) label and decimal formatted MPI, + * newline characters and '\0' + */ + char s[ MBEDTLS_MPI_RW_BUFFER_SIZE ]; + + memset( s, 0, sizeof( s ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_write_string( X, radix, s, sizeof( s ) - 2, &n ) ); + + if( p == NULL ) p = ""; + + plen = strlen( p ); + slen = strlen( s ); + s[slen++] = '\r'; + s[slen++] = '\n'; + + if( fout != NULL ) + { + if( fwrite( p, 1, plen, fout ) != plen || + fwrite( s, 1, slen, fout ) != slen ) + return( MBEDTLS_ERR_MPI_FILE_IO_ERROR ); + } + else + mbedtls_printf( "%s%s", p, s ); + +cleanup: + + return( ret ); +} +#endif /* MBEDTLS_FS_IO */ + +/* + * Import X from unsigned binary data, big endian + */ +int mbedtls_mpi_read_binary( mbedtls_mpi *X, const unsigned char *buf, size_t buflen ) +{ + int ret; + size_t i, j, n; + + for( n = 0; n < buflen; n++ ) + if( buf[n] != 0 ) + break; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, CHARS_TO_LIMBS( buflen - n ) ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( X, 0 ) ); + + for( i = buflen, j = 0; i > n; i--, j++ ) + X->p[j / ciL] |= ((mbedtls_mpi_uint) buf[i - 1]) << ((j % ciL) << 3); + +cleanup: + + return( ret ); +} + +/* + * Export X into unsigned binary data, big endian + */ +int mbedtls_mpi_write_binary( const mbedtls_mpi *X, unsigned char *buf, size_t buflen ) +{ + size_t i, j, n; + + n = mbedtls_mpi_size( X ); + + if( buflen < n ) + return( MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL ); + + memset( buf, 0, buflen ); + + for( i = buflen - 1, j = 0; n > 0; i--, j++, n-- ) + buf[i] = (unsigned char)( X->p[j / ciL] >> ((j % ciL) << 3) ); + + return( 0 ); +} + +/* + * Left-shift: X <<= count + */ +int mbedtls_mpi_shift_l( mbedtls_mpi *X, size_t count ) +{ + int ret; + size_t i, v0, t1; + mbedtls_mpi_uint r0 = 0, r1; + + v0 = count / (biL ); + t1 = count & (biL - 1); + + i = mbedtls_mpi_bitlen( X ) + count; + + if( X->n * biL < i ) + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, BITS_TO_LIMBS( i ) ) ); + + ret = 0; + + /* + * shift by count / limb_size + */ + if( v0 > 0 ) + { + for( i = X->n; i > v0; i-- ) + X->p[i - 1] = X->p[i - v0 - 1]; + + for( ; i > 0; i-- ) + X->p[i - 1] = 0; + } + + /* + * shift by count % limb_size + */ + if( t1 > 0 ) + { + for( i = v0; i < X->n; i++ ) + { + r1 = X->p[i] >> (biL - t1); + X->p[i] <<= t1; + X->p[i] |= r0; + r0 = r1; + } + } + +cleanup: + + return( ret ); +} + +/* + * Right-shift: X >>= count + */ +int mbedtls_mpi_shift_r( mbedtls_mpi *X, size_t count ) +{ + size_t i, v0, v1; + mbedtls_mpi_uint r0 = 0, r1; + + v0 = count / biL; + v1 = count & (biL - 1); + + if( v0 > X->n || ( v0 == X->n && v1 > 0 ) ) + return mbedtls_mpi_lset( X, 0 ); + + /* + * shift by count / limb_size + */ + if( v0 > 0 ) + { + for( i = 0; i < X->n - v0; i++ ) + X->p[i] = X->p[i + v0]; + + for( ; i < X->n; i++ ) + X->p[i] = 0; + } + + /* + * shift by count % limb_size + */ + if( v1 > 0 ) + { + for( i = X->n; i > 0; i-- ) + { + r1 = X->p[i - 1] << (biL - v1); + X->p[i - 1] >>= v1; + X->p[i - 1] |= r0; + r0 = r1; + } + } + + return( 0 ); +} + +/* + * Compare unsigned values + */ +int mbedtls_mpi_cmp_abs( const mbedtls_mpi *X, const mbedtls_mpi *Y ) +{ + size_t i, j; + + for( i = X->n; i > 0; i-- ) + if( X->p[i - 1] != 0 ) + break; + + for( j = Y->n; j > 0; j-- ) + if( Y->p[j - 1] != 0 ) + break; + + if( i == 0 && j == 0 ) + return( 0 ); + + if( i > j ) return( 1 ); + if( j > i ) return( -1 ); + + for( ; i > 0; i-- ) + { + if( X->p[i - 1] > Y->p[i - 1] ) return( 1 ); + if( X->p[i - 1] < Y->p[i - 1] ) return( -1 ); + } + + return( 0 ); +} + +/* + * Compare signed values + */ +int mbedtls_mpi_cmp_mpi( const mbedtls_mpi *X, const mbedtls_mpi *Y ) +{ + size_t i, j; + + for( i = X->n; i > 0; i-- ) + if( X->p[i - 1] != 0 ) + break; + + for( j = Y->n; j > 0; j-- ) + if( Y->p[j - 1] != 0 ) + break; + + if( i == 0 && j == 0 ) + return( 0 ); + + if( i > j ) return( X->s ); + if( j > i ) return( -Y->s ); + + if( X->s > 0 && Y->s < 0 ) return( 1 ); + if( Y->s > 0 && X->s < 0 ) return( -1 ); + + for( ; i > 0; i-- ) + { + if( X->p[i - 1] > Y->p[i - 1] ) return( X->s ); + if( X->p[i - 1] < Y->p[i - 1] ) return( -X->s ); + } + + return( 0 ); +} + +/* + * Compare signed values + */ +int mbedtls_mpi_cmp_int( const mbedtls_mpi *X, mbedtls_mpi_sint z ) +{ + mbedtls_mpi Y; + mbedtls_mpi_uint p[1]; + + *p = ( z < 0 ) ? -z : z; + Y.s = ( z < 0 ) ? -1 : 1; + Y.n = 1; + Y.p = p; + + return( mbedtls_mpi_cmp_mpi( X, &Y ) ); +} + +/* + * Unsigned addition: X = |A| + |B| (HAC 14.7) + */ +int mbedtls_mpi_add_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + int ret; + size_t i, j; + mbedtls_mpi_uint *o, *p, c, tmp; + + if( X == B ) + { + const mbedtls_mpi *T = A; A = X; B = T; + } + + if( X != A ) + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, A ) ); + + /* + * X should always be positive as a result of unsigned additions. + */ + X->s = 1; + + for( j = B->n; j > 0; j-- ) + if( B->p[j - 1] != 0 ) + break; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, j ) ); + + o = B->p; p = X->p; c = 0; + + /* + * tmp is used because it might happen that p == o + */ + for( i = 0; i < j; i++, o++, p++ ) + { + tmp= *o; + *p += c; c = ( *p < c ); + *p += tmp; c += ( *p < tmp ); + } + + while( c != 0 ) + { + if( i >= X->n ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i + 1 ) ); + p = X->p + i; + } + + *p += c; c = ( *p < c ); i++; p++; + } + +cleanup: + + return( ret ); +} + +/* + * Helper for mbedtls_mpi subtraction + */ +static void mpi_sub_hlp( size_t n, mbedtls_mpi_uint *s, mbedtls_mpi_uint *d ) +{ + size_t i; + mbedtls_mpi_uint c, z; + + for( i = c = 0; i < n; i++, s++, d++ ) + { + z = ( *d < c ); *d -= c; + c = ( *d < *s ) + z; *d -= *s; + } + + while( c != 0 ) + { + z = ( *d < c ); *d -= c; + c = z; i++; d++; + } +} + +/* + * Unsigned subtraction: X = |A| - |B| (HAC 14.9) + */ +int mbedtls_mpi_sub_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + mbedtls_mpi TB; + int ret; + size_t n; + + if( mbedtls_mpi_cmp_abs( A, B ) < 0 ) + return( MBEDTLS_ERR_MPI_NEGATIVE_VALUE ); + + mbedtls_mpi_init( &TB ); + + if( X == B ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TB, B ) ); + B = &TB; + } + + if( X != A ) + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, A ) ); + + /* + * X should always be positive as a result of unsigned subtractions. + */ + X->s = 1; + + ret = 0; + + for( n = B->n; n > 0; n-- ) + if( B->p[n - 1] != 0 ) + break; + + mpi_sub_hlp( n, B->p, X->p ); + +cleanup: + + mbedtls_mpi_free( &TB ); + + return( ret ); +} + +/* + * Signed addition: X = A + B + */ +int mbedtls_mpi_add_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + int ret, s = A->s; + + if( A->s * B->s < 0 ) + { + if( mbedtls_mpi_cmp_abs( A, B ) >= 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, A, B ) ); + X->s = s; + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, B, A ) ); + X->s = -s; + } + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( X, A, B ) ); + X->s = s; + } + +cleanup: + + return( ret ); +} + +/* + * Signed subtraction: X = A - B + */ +int mbedtls_mpi_sub_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + int ret, s = A->s; + + if( A->s * B->s > 0 ) + { + if( mbedtls_mpi_cmp_abs( A, B ) >= 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, A, B ) ); + X->s = s; + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, B, A ) ); + X->s = -s; + } + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( X, A, B ) ); + X->s = s; + } + +cleanup: + + return( ret ); +} + +/* + * Signed addition: X = A + b + */ +int mbedtls_mpi_add_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b ) +{ + mbedtls_mpi _B; + mbedtls_mpi_uint p[1]; + + p[0] = ( b < 0 ) ? -b : b; + _B.s = ( b < 0 ) ? -1 : 1; + _B.n = 1; + _B.p = p; + + return( mbedtls_mpi_add_mpi( X, A, &_B ) ); +} + +/* + * Signed subtraction: X = A - b + */ +int mbedtls_mpi_sub_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b ) +{ + mbedtls_mpi _B; + mbedtls_mpi_uint p[1]; + + p[0] = ( b < 0 ) ? -b : b; + _B.s = ( b < 0 ) ? -1 : 1; + _B.n = 1; + _B.p = p; + + return( mbedtls_mpi_sub_mpi( X, A, &_B ) ); +} + +/* + * Helper for mbedtls_mpi multiplication + */ +static +#if defined(__APPLE__) && defined(__arm__) +/* + * Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn) + * appears to need this to prevent bad ARM code generation at -O3. + */ +__attribute__ ((noinline)) +#endif +void mpi_mul_hlp( size_t i, mbedtls_mpi_uint *s, mbedtls_mpi_uint *d, mbedtls_mpi_uint b ) +{ + mbedtls_mpi_uint c = 0, t = 0; + +#if defined(MULADDC_HUIT) + for( ; i >= 8; i -= 8 ) + { + MULADDC_INIT + MULADDC_HUIT + MULADDC_STOP + } + + for( ; i > 0; i-- ) + { + MULADDC_INIT + MULADDC_CORE + MULADDC_STOP + } +#else /* MULADDC_HUIT */ + for( ; i >= 16; i -= 16 ) + { + MULADDC_INIT + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + MULADDC_STOP + } + + for( ; i >= 8; i -= 8 ) + { + MULADDC_INIT + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + + MULADDC_CORE MULADDC_CORE + MULADDC_CORE MULADDC_CORE + MULADDC_STOP + } + + for( ; i > 0; i-- ) + { + MULADDC_INIT + MULADDC_CORE + MULADDC_STOP + } +#endif /* MULADDC_HUIT */ + + t++; + + do { + *d += c; c = ( *d < c ); d++; + } + while( c != 0 ); +} + +/* + * Baseline multiplication: X = A * B (HAC 14.12) + */ +int mbedtls_mpi_mul_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + int ret; + size_t i, j; + mbedtls_mpi TA, TB; + + mbedtls_mpi_init( &TA ); mbedtls_mpi_init( &TB ); + + if( X == A ) { MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TA, A ) ); A = &TA; } + if( X == B ) { MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TB, B ) ); B = &TB; } + + for( i = A->n; i > 0; i-- ) + if( A->p[i - 1] != 0 ) + break; + + for( j = B->n; j > 0; j-- ) + if( B->p[j - 1] != 0 ) + break; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i + j ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( X, 0 ) ); + + for( i++; j > 0; j-- ) + mpi_mul_hlp( i - 1, A->p, X->p + j - 1, B->p[j - 1] ); + + X->s = A->s * B->s; + +cleanup: + + mbedtls_mpi_free( &TB ); mbedtls_mpi_free( &TA ); + + return( ret ); +} + +/* + * Baseline multiplication: X = A * b + */ +int mbedtls_mpi_mul_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_uint b ) +{ + mbedtls_mpi _B; + mbedtls_mpi_uint p[1]; + + _B.s = 1; + _B.n = 1; + _B.p = p; + p[0] = b; + + return( mbedtls_mpi_mul_mpi( X, A, &_B ) ); +} + +/* + * Unsigned integer divide - double mbedtls_mpi_uint dividend, u1/u0, and + * mbedtls_mpi_uint divisor, d + */ +static mbedtls_mpi_uint mbedtls_int_div_int( mbedtls_mpi_uint u1, + mbedtls_mpi_uint u0, mbedtls_mpi_uint d, mbedtls_mpi_uint *r ) +{ +#if defined(MBEDTLS_HAVE_UDBL) + mbedtls_t_udbl dividend, quotient; +#else + const mbedtls_mpi_uint radix = (mbedtls_mpi_uint) 1 << biH; + const mbedtls_mpi_uint uint_halfword_mask = ( (mbedtls_mpi_uint) 1 << biH ) - 1; + mbedtls_mpi_uint d0, d1, q0, q1, rAX, r0, quotient; + mbedtls_mpi_uint u0_msw, u0_lsw; + size_t s; +#endif + + /* + * Check for overflow + */ + if( 0 == d || u1 >= d ) + { + if (r != NULL) *r = ~0; + + return ( ~0 ); + } + +#if defined(MBEDTLS_HAVE_UDBL) + dividend = (mbedtls_t_udbl) u1 << biL; + dividend |= (mbedtls_t_udbl) u0; + quotient = dividend / d; + if( quotient > ( (mbedtls_t_udbl) 1 << biL ) - 1 ) + quotient = ( (mbedtls_t_udbl) 1 << biL ) - 1; + + if( r != NULL ) + *r = (mbedtls_mpi_uint)( dividend - (quotient * d ) ); + + return (mbedtls_mpi_uint) quotient; +#else + + /* + * Algorithm D, Section 4.3.1 - The Art of Computer Programming + * Vol. 2 - Seminumerical Algorithms, Knuth + */ + + /* + * Normalize the divisor, d, and dividend, u0, u1 + */ + s = mbedtls_clz( d ); + d = d << s; + + u1 = u1 << s; + u1 |= ( u0 >> ( biL - s ) ) & ( -(mbedtls_mpi_sint)s >> ( biL - 1 ) ); + u0 = u0 << s; + + d1 = d >> biH; + d0 = d & uint_halfword_mask; + + u0_msw = u0 >> biH; + u0_lsw = u0 & uint_halfword_mask; + + /* + * Find the first quotient and remainder + */ + q1 = u1 / d1; + r0 = u1 - d1 * q1; + + while( q1 >= radix || ( q1 * d0 > radix * r0 + u0_msw ) ) + { + q1 -= 1; + r0 += d1; + + if ( r0 >= radix ) break; + } + + rAX = ( u1 * radix ) + ( u0_msw - q1 * d ); + q0 = rAX / d1; + r0 = rAX - q0 * d1; + + while( q0 >= radix || ( q0 * d0 > radix * r0 + u0_lsw ) ) + { + q0 -= 1; + r0 += d1; + + if ( r0 >= radix ) break; + } + + if (r != NULL) + *r = ( rAX * radix + u0_lsw - q0 * d ) >> s; + + quotient = q1 * radix + q0; + + return quotient; +#endif +} + +/* + * Division by mbedtls_mpi: A = Q * B + R (HAC 14.20) + */ +int mbedtls_mpi_div_mpi( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + int ret; + size_t i, n, t, k; + mbedtls_mpi X, Y, Z, T1, T2; + + if( mbedtls_mpi_cmp_int( B, 0 ) == 0 ) + return( MBEDTLS_ERR_MPI_DIVISION_BY_ZERO ); + + mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &Z ); + mbedtls_mpi_init( &T1 ); mbedtls_mpi_init( &T2 ); + + if( mbedtls_mpi_cmp_abs( A, B ) < 0 ) + { + if( Q != NULL ) MBEDTLS_MPI_CHK( mbedtls_mpi_lset( Q, 0 ) ); + if( R != NULL ) MBEDTLS_MPI_CHK( mbedtls_mpi_copy( R, A ) ); + return( 0 ); + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &X, A ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Y, B ) ); + X.s = Y.s = 1; + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &Z, A->n + 2 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &Z, 0 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &T1, 2 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &T2, 3 ) ); + + k = mbedtls_mpi_bitlen( &Y ) % biL; + if( k < biL - 1 ) + { + k = biL - 1 - k; + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &X, k ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &Y, k ) ); + } + else k = 0; + + n = X.n - 1; + t = Y.n - 1; + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &Y, biL * ( n - t ) ) ); + + while( mbedtls_mpi_cmp_mpi( &X, &Y ) >= 0 ) + { + Z.p[n - t]++; + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &Y ) ); + } + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &Y, biL * ( n - t ) ) ); + + for( i = n; i > t ; i-- ) + { + if( X.p[i] >= Y.p[t] ) + Z.p[i - t - 1] = ~0; + else + { + Z.p[i - t - 1] = mbedtls_int_div_int( X.p[i], X.p[i - 1], + Y.p[t], NULL); + } + + Z.p[i - t - 1]++; + do + { + Z.p[i - t - 1]--; + + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &T1, 0 ) ); + T1.p[0] = ( t < 1 ) ? 0 : Y.p[t - 1]; + T1.p[1] = Y.p[t]; + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &T1, Z.p[i - t - 1] ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &T2, 0 ) ); + T2.p[0] = ( i < 2 ) ? 0 : X.p[i - 2]; + T2.p[1] = ( i < 1 ) ? 0 : X.p[i - 1]; + T2.p[2] = X.p[i]; + } + while( mbedtls_mpi_cmp_mpi( &T1, &T2 ) > 0 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &Y, Z.p[i - t - 1] ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T1, biL * ( i - t - 1 ) ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &T1 ) ); + + if( mbedtls_mpi_cmp_int( &X, 0 ) < 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &T1, &Y ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T1, biL * ( i - t - 1 ) ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &X, &X, &T1 ) ); + Z.p[i - t - 1]--; + } + } + + if( Q != NULL ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( Q, &Z ) ); + Q->s = A->s * B->s; + } + + if( R != NULL ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &X, k ) ); + X.s = A->s; + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( R, &X ) ); + + if( mbedtls_mpi_cmp_int( R, 0 ) == 0 ) + R->s = 1; + } + +cleanup: + + mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &Z ); + mbedtls_mpi_free( &T1 ); mbedtls_mpi_free( &T2 ); + + return( ret ); +} + +/* + * Division by int: A = Q * b + R + */ +int mbedtls_mpi_div_int( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, mbedtls_mpi_sint b ) +{ + mbedtls_mpi _B; + mbedtls_mpi_uint p[1]; + + p[0] = ( b < 0 ) ? -b : b; + _B.s = ( b < 0 ) ? -1 : 1; + _B.n = 1; + _B.p = p; + + return( mbedtls_mpi_div_mpi( Q, R, A, &_B ) ); +} + +/* + * Modulo: R = A mod B + */ +int mbedtls_mpi_mod_mpi( mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + int ret; + + if( mbedtls_mpi_cmp_int( B, 0 ) < 0 ) + return( MBEDTLS_ERR_MPI_NEGATIVE_VALUE ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( NULL, R, A, B ) ); + + while( mbedtls_mpi_cmp_int( R, 0 ) < 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( R, R, B ) ); + + while( mbedtls_mpi_cmp_mpi( R, B ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( R, R, B ) ); + +cleanup: + + return( ret ); +} + +/* + * Modulo: r = A mod b + */ +int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_sint b ) +{ + size_t i; + mbedtls_mpi_uint x, y, z; + + if( b == 0 ) + return( MBEDTLS_ERR_MPI_DIVISION_BY_ZERO ); + + if( b < 0 ) + return( MBEDTLS_ERR_MPI_NEGATIVE_VALUE ); + + /* + * handle trivial cases + */ + if( b == 1 ) + { + *r = 0; + return( 0 ); + } + + if( b == 2 ) + { + *r = A->p[0] & 1; + return( 0 ); + } + + /* + * general case + */ + for( i = A->n, y = 0; i > 0; i-- ) + { + x = A->p[i - 1]; + y = ( y << biH ) | ( x >> biH ); + z = y / b; + y -= z * b; + + x <<= biH; + y = ( y << biH ) | ( x >> biH ); + z = y / b; + y -= z * b; + } + + /* + * If A is negative, then the current y represents a negative value. + * Flipping it to the positive side. + */ + if( A->s < 0 && y != 0 ) + y = b - y; + + *r = y; + + return( 0 ); +} + +/* + * Fast Montgomery initialization (thanks to Tom St Denis) + */ +static void mpi_montg_init( mbedtls_mpi_uint *mm, const mbedtls_mpi *N ) +{ + mbedtls_mpi_uint x, m0 = N->p[0]; + unsigned int i; + + x = m0; + x += ( ( m0 + 2 ) & 4 ) << 1; + + for( i = biL; i >= 8; i /= 2 ) + x *= ( 2 - ( m0 * x ) ); + + *mm = ~x + 1; +} + +/* + * Montgomery multiplication: A = A * B * R^-1 mod N (HAC 14.36) + */ +static int mpi_montmul( mbedtls_mpi *A, const mbedtls_mpi *B, const mbedtls_mpi *N, mbedtls_mpi_uint mm, + const mbedtls_mpi *T ) +{ + size_t i, n, m; + mbedtls_mpi_uint u0, u1, *d; + + if( T->n < N->n + 1 || T->p == NULL ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + memset( T->p, 0, T->n * ciL ); + + d = T->p; + n = N->n; + m = ( B->n < n ) ? B->n : n; + + for( i = 0; i < n; i++ ) + { + /* + * T = (T + u0*B + u1*N) / 2^biL + */ + u0 = A->p[i]; + u1 = ( d[0] + u0 * B->p[0] ) * mm; + + mpi_mul_hlp( m, B->p, d, u0 ); + mpi_mul_hlp( n, N->p, d, u1 ); + + *d++ = u0; d[n + 1] = 0; + } + + memcpy( A->p, d, ( n + 1 ) * ciL ); + + if( mbedtls_mpi_cmp_abs( A, N ) >= 0 ) + mpi_sub_hlp( n, N->p, A->p ); + else + /* prevent timing attacks */ + mpi_sub_hlp( n, A->p, T->p ); + + return( 0 ); +} + +/* + * Montgomery reduction: A = A * R^-1 mod N + */ +static int mpi_montred( mbedtls_mpi *A, const mbedtls_mpi *N, mbedtls_mpi_uint mm, const mbedtls_mpi *T ) +{ + mbedtls_mpi_uint z = 1; + mbedtls_mpi U; + + U.n = U.s = (int) z; + U.p = &z; + + return( mpi_montmul( A, &U, N, mm, T ) ); +} + +/* + * Sliding-window exponentiation: X = A^E mod N (HAC 14.85) + */ +int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *E, const mbedtls_mpi *N, mbedtls_mpi *_RR ) +{ + int ret; + size_t wbits, wsize, one = 1; + size_t i, j, nblimbs; + size_t bufsize, nbits; + mbedtls_mpi_uint ei, mm, state; + mbedtls_mpi RR, T, W[ 2 << MBEDTLS_MPI_WINDOW_SIZE ], Apos; + int neg; + + if( mbedtls_mpi_cmp_int( N, 0 ) < 0 || ( N->p[0] & 1 ) == 0 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + if( mbedtls_mpi_cmp_int( E, 0 ) < 0 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + /* + * Init temps and window size + */ + mpi_montg_init( &mm, N ); + mbedtls_mpi_init( &RR ); mbedtls_mpi_init( &T ); + mbedtls_mpi_init( &Apos ); + memset( W, 0, sizeof( W ) ); + + i = mbedtls_mpi_bitlen( E ); + + wsize = ( i > 671 ) ? 6 : ( i > 239 ) ? 5 : + ( i > 79 ) ? 4 : ( i > 23 ) ? 3 : 1; + + if( wsize > MBEDTLS_MPI_WINDOW_SIZE ) + wsize = MBEDTLS_MPI_WINDOW_SIZE; + + j = N->n + 1; + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, j ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[1], j ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &T, j * 2 ) ); + + /* + * Compensate for negative A (and correct at the end) + */ + neg = ( A->s == -1 ); + if( neg ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Apos, A ) ); + Apos.s = 1; + A = &Apos; + } + + /* + * If 1st call, pre-compute R^2 mod N + */ + if( _RR == NULL || _RR->p == NULL ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &RR, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &RR, N->n * 2 * biL ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &RR, &RR, N ) ); + + if( _RR != NULL ) + memcpy( _RR, &RR, sizeof( mbedtls_mpi ) ); + } + else + memcpy( &RR, _RR, sizeof( mbedtls_mpi ) ); + + /* + * W[1] = A * R^2 * R^-1 mod N = A * R mod N + */ + if( mbedtls_mpi_cmp_mpi( A, N ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &W[1], A, N ) ); + else + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[1], A ) ); + + MBEDTLS_MPI_CHK( mpi_montmul( &W[1], &RR, N, mm, &T ) ); + + /* + * X = R^2 * R^-1 mod N = R mod N + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, &RR ) ); + MBEDTLS_MPI_CHK( mpi_montred( X, N, mm, &T ) ); + + if( wsize > 1 ) + { + /* + * W[1 << (wsize - 1)] = W[1] ^ (wsize - 1) + */ + j = one << ( wsize - 1 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[j], N->n + 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[j], &W[1] ) ); + + for( i = 0; i < wsize - 1; i++ ) + MBEDTLS_MPI_CHK( mpi_montmul( &W[j], &W[j], N, mm, &T ) ); + + /* + * W[i] = W[i - 1] * W[1] + */ + for( i = j + 1; i < ( one << wsize ); i++ ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[i], N->n + 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[i], &W[i - 1] ) ); + + MBEDTLS_MPI_CHK( mpi_montmul( &W[i], &W[1], N, mm, &T ) ); + } + } + + nblimbs = E->n; + bufsize = 0; + nbits = 0; + wbits = 0; + state = 0; + + while( 1 ) + { + if( bufsize == 0 ) + { + if( nblimbs == 0 ) + break; + + nblimbs--; + + bufsize = sizeof( mbedtls_mpi_uint ) << 3; + } + + bufsize--; + + ei = (E->p[nblimbs] >> bufsize) & 1; + + /* + * skip leading 0s + */ + if( ei == 0 && state == 0 ) + continue; + + if( ei == 0 && state == 1 ) + { + /* + * out of window, square X + */ + MBEDTLS_MPI_CHK( mpi_montmul( X, X, N, mm, &T ) ); + continue; + } + + /* + * add ei to current window + */ + state = 2; + + nbits++; + wbits |= ( ei << ( wsize - nbits ) ); + + if( nbits == wsize ) + { + /* + * X = X^wsize R^-1 mod N + */ + for( i = 0; i < wsize; i++ ) + MBEDTLS_MPI_CHK( mpi_montmul( X, X, N, mm, &T ) ); + + /* + * X = X * W[wbits] R^-1 mod N + */ + MBEDTLS_MPI_CHK( mpi_montmul( X, &W[wbits], N, mm, &T ) ); + + state--; + nbits = 0; + wbits = 0; + } + } + + /* + * process the remaining bits + */ + for( i = 0; i < nbits; i++ ) + { + MBEDTLS_MPI_CHK( mpi_montmul( X, X, N, mm, &T ) ); + + wbits <<= 1; + + if( ( wbits & ( one << wsize ) ) != 0 ) + MBEDTLS_MPI_CHK( mpi_montmul( X, &W[1], N, mm, &T ) ); + } + + /* + * X = A^E * R * R^-1 mod N = A^E mod N + */ + MBEDTLS_MPI_CHK( mpi_montred( X, N, mm, &T ) ); + + if( neg ) + { + X->s = -1; + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( X, N, X ) ); + } + +cleanup: + + for( i = ( one << ( wsize - 1 ) ); i < ( one << wsize ); i++ ) + mbedtls_mpi_free( &W[i] ); + + mbedtls_mpi_free( &W[1] ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &Apos ); + + if( _RR == NULL || _RR->p == NULL ) + mbedtls_mpi_free( &RR ); + + return( ret ); +} + +/* + * Greatest common divisor: G = gcd(A, B) (HAC 14.54) + */ +int mbedtls_mpi_gcd( mbedtls_mpi *G, const mbedtls_mpi *A, const mbedtls_mpi *B ) +{ + int ret; + size_t lz, lzt; + mbedtls_mpi TG, TA, TB; + + mbedtls_mpi_init( &TG ); mbedtls_mpi_init( &TA ); mbedtls_mpi_init( &TB ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TA, A ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TB, B ) ); + + lz = mbedtls_mpi_lsb( &TA ); + lzt = mbedtls_mpi_lsb( &TB ); + + if( lzt < lz ) + lz = lzt; + + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TA, lz ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TB, lz ) ); + + TA.s = TB.s = 1; + + while( mbedtls_mpi_cmp_int( &TA, 0 ) != 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TA, mbedtls_mpi_lsb( &TA ) ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TB, mbedtls_mpi_lsb( &TB ) ) ); + + if( mbedtls_mpi_cmp_mpi( &TA, &TB ) >= 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &TA, &TA, &TB ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TA, 1 ) ); + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &TB, &TB, &TA ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TB, 1 ) ); + } + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &TB, lz ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( G, &TB ) ); + +cleanup: + + mbedtls_mpi_free( &TG ); mbedtls_mpi_free( &TA ); mbedtls_mpi_free( &TB ); + + return( ret ); +} + +/* + * Fill X with size bytes of random. + * + * Use a temporary bytes representation to make sure the result is the same + * regardless of the platform endianness (useful when f_rng is actually + * deterministic, eg for tests). + */ +int mbedtls_mpi_fill_random( mbedtls_mpi *X, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + + if( size > MBEDTLS_MPI_MAX_SIZE ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + MBEDTLS_MPI_CHK( f_rng( p_rng, buf, size ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( X, buf, size ) ); + +cleanup: + return( ret ); +} + +/* + * Modular inverse: X = A^-1 mod N (HAC 14.61 / 14.64) + */ +int mbedtls_mpi_inv_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *N ) +{ + int ret; + mbedtls_mpi G, TA, TU, U1, U2, TB, TV, V1, V2; + + if( mbedtls_mpi_cmp_int( N, 0 ) <= 0 ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &TA ); mbedtls_mpi_init( &TU ); mbedtls_mpi_init( &U1 ); mbedtls_mpi_init( &U2 ); + mbedtls_mpi_init( &G ); mbedtls_mpi_init( &TB ); mbedtls_mpi_init( &TV ); + mbedtls_mpi_init( &V1 ); mbedtls_mpi_init( &V2 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, A, N ) ); + + if( mbedtls_mpi_cmp_int( &G, 1 ) != 0 ) + { + ret = MBEDTLS_ERR_MPI_NOT_ACCEPTABLE; + goto cleanup; + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &TA, A, N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TU, &TA ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TB, N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TV, N ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &U1, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &U2, 0 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &V1, 0 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &V2, 1 ) ); + + do + { + while( ( TU.p[0] & 1 ) == 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TU, 1 ) ); + + if( ( U1.p[0] & 1 ) != 0 || ( U2.p[0] & 1 ) != 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &U1, &U1, &TB ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U2, &U2, &TA ) ); + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &U1, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &U2, 1 ) ); + } + + while( ( TV.p[0] & 1 ) == 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TV, 1 ) ); + + if( ( V1.p[0] & 1 ) != 0 || ( V2.p[0] & 1 ) != 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &V1, &V1, &TB ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V2, &V2, &TA ) ); + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &V1, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &V2, 1 ) ); + } + + if( mbedtls_mpi_cmp_mpi( &TU, &TV ) >= 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &TU, &TU, &TV ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U1, &U1, &V1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U2, &U2, &V2 ) ); + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &TV, &TV, &TU ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V1, &V1, &U1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V2, &V2, &U2 ) ); + } + } + while( mbedtls_mpi_cmp_int( &TU, 0 ) != 0 ); + + while( mbedtls_mpi_cmp_int( &V1, 0 ) < 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &V1, &V1, N ) ); + + while( mbedtls_mpi_cmp_mpi( &V1, N ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V1, &V1, N ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, &V1 ) ); + +cleanup: + + mbedtls_mpi_free( &TA ); mbedtls_mpi_free( &TU ); mbedtls_mpi_free( &U1 ); mbedtls_mpi_free( &U2 ); + mbedtls_mpi_free( &G ); mbedtls_mpi_free( &TB ); mbedtls_mpi_free( &TV ); + mbedtls_mpi_free( &V1 ); mbedtls_mpi_free( &V2 ); + + return( ret ); +} + +#if defined(MBEDTLS_GENPRIME) + +static const int small_prime[] = +{ + 3, 5, 7, 11, 13, 17, 19, 23, + 29, 31, 37, 41, 43, 47, 53, 59, + 61, 67, 71, 73, 79, 83, 89, 97, + 101, 103, 107, 109, 113, 127, 131, 137, + 139, 149, 151, 157, 163, 167, 173, 179, + 181, 191, 193, 197, 199, 211, 223, 227, + 229, 233, 239, 241, 251, 257, 263, 269, + 271, 277, 281, 283, 293, 307, 311, 313, + 317, 331, 337, 347, 349, 353, 359, 367, + 373, 379, 383, 389, 397, 401, 409, 419, + 421, 431, 433, 439, 443, 449, 457, 461, + 463, 467, 479, 487, 491, 499, 503, 509, + 521, 523, 541, 547, 557, 563, 569, 571, + 577, 587, 593, 599, 601, 607, 613, 617, + 619, 631, 641, 643, 647, 653, 659, 661, + 673, 677, 683, 691, 701, 709, 719, 727, + 733, 739, 743, 751, 757, 761, 769, 773, + 787, 797, 809, 811, 821, 823, 827, 829, + 839, 853, 857, 859, 863, 877, 881, 883, + 887, 907, 911, 919, 929, 937, 941, 947, + 953, 967, 971, 977, 983, 991, 997, -103 +}; + +/* + * Small divisors test (X must be positive) + * + * Return values: + * 0: no small factor (possible prime, more tests needed) + * 1: certain prime + * MBEDTLS_ERR_MPI_NOT_ACCEPTABLE: certain non-prime + * other negative: error + */ +static int mpi_check_small_factors( const mbedtls_mpi *X ) +{ + int ret = 0; + size_t i; + mbedtls_mpi_uint r; + + if( ( X->p[0] & 1 ) == 0 ) + return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE ); + + for( i = 0; small_prime[i] > 0; i++ ) + { + if( mbedtls_mpi_cmp_int( X, small_prime[i] ) <= 0 ) + return( 1 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_int( &r, X, small_prime[i] ) ); + + if( r == 0 ) + return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE ); + } + +cleanup: + return( ret ); +} + +/* + * Miller-Rabin pseudo-primality test (HAC 4.24) + */ +static int mpi_miller_rabin( const mbedtls_mpi *X, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret, count; + size_t i, j, k, n, s; + mbedtls_mpi W, R, T, A, RR; + + mbedtls_mpi_init( &W ); mbedtls_mpi_init( &R ); mbedtls_mpi_init( &T ); mbedtls_mpi_init( &A ); + mbedtls_mpi_init( &RR ); + + /* + * W = |X| - 1 + * R = W >> lsb( W ) + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &W, X, 1 ) ); + s = mbedtls_mpi_lsb( &W ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R, &W ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &R, s ) ); + + i = mbedtls_mpi_bitlen( X ); + /* + * HAC, table 4.4 + */ + n = ( ( i >= 1300 ) ? 2 : ( i >= 850 ) ? 3 : + ( i >= 650 ) ? 4 : ( i >= 350 ) ? 8 : + ( i >= 250 ) ? 12 : ( i >= 150 ) ? 18 : 27 ); + + for( i = 0; i < n; i++ ) + { + /* + * pick a random A, 1 < A < |X| - 1 + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &A, X->n * ciL, f_rng, p_rng ) ); + + if( mbedtls_mpi_cmp_mpi( &A, &W ) >= 0 ) + { + j = mbedtls_mpi_bitlen( &A ) - mbedtls_mpi_bitlen( &W ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &A, j + 1 ) ); + } + A.p[0] |= 3; + + count = 0; + do { + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &A, X->n * ciL, f_rng, p_rng ) ); + + j = mbedtls_mpi_bitlen( &A ); + k = mbedtls_mpi_bitlen( &W ); + if (j > k) { + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &A, j - k ) ); + } + + if (count++ > 30) { + return MBEDTLS_ERR_MPI_NOT_ACCEPTABLE; + } + + } while ( mbedtls_mpi_cmp_mpi( &A, &W ) >= 0 || + mbedtls_mpi_cmp_int( &A, 1 ) <= 0 ); + + /* + * A = A^R mod |X| + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &A, &A, &R, X, &RR ) ); + + if( mbedtls_mpi_cmp_mpi( &A, &W ) == 0 || + mbedtls_mpi_cmp_int( &A, 1 ) == 0 ) + continue; + + j = 1; + while( j < s && mbedtls_mpi_cmp_mpi( &A, &W ) != 0 ) + { + /* + * A = A * A mod |X| + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &A, &A ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &A, &T, X ) ); + + if( mbedtls_mpi_cmp_int( &A, 1 ) == 0 ) + break; + + j++; + } + + /* + * not prime if A != |X| - 1 or A == 1 + */ + if( mbedtls_mpi_cmp_mpi( &A, &W ) != 0 || + mbedtls_mpi_cmp_int( &A, 1 ) == 0 ) + { + ret = MBEDTLS_ERR_MPI_NOT_ACCEPTABLE; + break; + } + } + +cleanup: + mbedtls_mpi_free( &W ); mbedtls_mpi_free( &R ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &A ); + mbedtls_mpi_free( &RR ); + + return( ret ); +} + +/* + * Pseudo-primality test: small factors, then Miller-Rabin + */ +int mbedtls_mpi_is_prime( const mbedtls_mpi *X, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_mpi XX; + + XX.s = 1; + XX.n = X->n; + XX.p = X->p; + + if( mbedtls_mpi_cmp_int( &XX, 0 ) == 0 || + mbedtls_mpi_cmp_int( &XX, 1 ) == 0 ) + return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE ); + + if( mbedtls_mpi_cmp_int( &XX, 2 ) == 0 ) + return( 0 ); + + if( ( ret = mpi_check_small_factors( &XX ) ) != 0 ) + { + if( ret == 1 ) + return( 0 ); + + return( ret ); + } + + return( mpi_miller_rabin( &XX, f_rng, p_rng ) ); +} + +/* + * Prime number generation + */ +int mbedtls_mpi_gen_prime( mbedtls_mpi *X, size_t nbits, int dh_flag, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + size_t k, n; + mbedtls_mpi_uint r; + mbedtls_mpi Y; + + if( nbits < 3 || nbits > MBEDTLS_MPI_MAX_BITS ) + return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &Y ); + + n = BITS_TO_LIMBS( nbits ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( X, n * ciL, f_rng, p_rng ) ); + + k = mbedtls_mpi_bitlen( X ); + if( k > nbits ) MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( X, k - nbits + 1 ) ); + + mbedtls_mpi_set_bit( X, nbits-1, 1 ); + + X->p[0] |= 1; + + if( dh_flag == 0 ) + { + while( ( ret = mbedtls_mpi_is_prime( X, f_rng, p_rng ) ) != 0 ) + { + if( ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE ) + goto cleanup; + + MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, X, 2 ) ); + } + } + else + { + /* + * An necessary condition for Y and X = 2Y + 1 to be prime + * is X = 2 mod 3 (which is equivalent to Y = 2 mod 3). + * Make sure it is satisfied, while keeping X = 3 mod 4 + */ + + X->p[0] |= 2; + + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_int( &r, X, 3 ) ); + if( r == 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, X, 8 ) ); + else if( r == 1 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, X, 4 ) ); + + /* Set Y = (X-1) / 2, which is X / 2 because X is odd */ + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Y, X ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &Y, 1 ) ); + + while( 1 ) + { + /* + * First, check small factors for X and Y + * before doing Miller-Rabin on any of them + */ + if( ( ret = mpi_check_small_factors( X ) ) == 0 && + ( ret = mpi_check_small_factors( &Y ) ) == 0 && + ( ret = mpi_miller_rabin( X, f_rng, p_rng ) ) == 0 && + ( ret = mpi_miller_rabin( &Y, f_rng, p_rng ) ) == 0 ) + { + break; + } + + if( ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE ) + goto cleanup; + + /* + * Next candidates. We want to preserve Y = (X-1) / 2 and + * Y = 1 mod 2 and Y = 2 mod 3 (eq X = 3 mod 4 and X = 2 mod 3) + * so up Y by 6 and X by 12. + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, X, 12 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &Y, &Y, 6 ) ); + } + } + +cleanup: + + mbedtls_mpi_free( &Y ); + + return( ret ); +} + +#endif /* MBEDTLS_GENPRIME */ + +#if defined(MBEDTLS_SELF_TEST) + +#define GCD_PAIR_COUNT 3 + +static const int gcd_pairs[GCD_PAIR_COUNT][3] = +{ + { 693, 609, 21 }, + { 1764, 868, 28 }, + { 768454923, 542167814, 1 } +}; + +/* + * Checkup routine + */ +int mbedtls_mpi_self_test( int verbose ) +{ + int ret, i; + mbedtls_mpi A, E, N, X, Y, U, V; + + mbedtls_mpi_init( &A ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &N ); mbedtls_mpi_init( &X ); + mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &U ); mbedtls_mpi_init( &V ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &A, 16, + "EFE021C2645FD1DC586E69184AF4A31E" \ + "D5F53E93B5F123FA41680867BA110131" \ + "944FE7952E2517337780CB0DB80E61AA" \ + "E7C8DDC6C5C6AADEB34EB38A2F40D5E6" ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &E, 16, + "B2E7EFD37075B9F03FF989C7C5051C20" \ + "34D2A323810251127E7BF8625A4F49A5" \ + "F3E27F4DA8BD59C47D6DAABA4C8127BD" \ + "5B5C25763222FEFCCFC38B832366C29E" ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &N, 16, + "0066A198186C18C10B2F5ED9B522752A" \ + "9830B69916E535C8F047518A889A43A5" \ + "94B6BED27A168D31D4A52F88925AA8F5" ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &X, &A, &N ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16, + "602AB7ECA597A3D6B56FF9829A5E8B85" \ + "9E857EA95A03512E2BAE7391688D264A" \ + "A5663B0341DB9CCFD2C4C5F421FEC814" \ + "8001B72E848A38CAE1C65F78E56ABDEF" \ + "E12D3C039B8A02D6BE593F0BBBDA56F1" \ + "ECF677152EF804370C1A305CAF3B5BF1" \ + "30879B56C61DE584A0F53A2447A51E" ) ); + + if( verbose != 0 ) + mbedtls_printf( " MPI test #1 (mul_mpi): " ); + + if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto cleanup; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &X, &Y, &A, &N ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16, + "256567336059E52CAE22925474705F39A94" ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &V, 16, + "6613F26162223DF488E9CD48CC132C7A" \ + "0AC93C701B001B092E4E5B9F73BCD27B" \ + "9EE50D0657C77F374E903CDFA4C642" ) ); + + if( verbose != 0 ) + mbedtls_printf( " MPI test #2 (div_mpi): " ); + + if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 || + mbedtls_mpi_cmp_mpi( &Y, &V ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto cleanup; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &X, &A, &E, &N, NULL ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16, + "36E139AEA55215609D2816998ED020BB" \ + "BD96C37890F65171D948E9BC7CBAA4D9" \ + "325D24D6A3C12710F10A09FA08AB87" ) ); + + if( verbose != 0 ) + mbedtls_printf( " MPI test #3 (exp_mod): " ); + + if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto cleanup; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &X, &A, &N ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16, + "003A0AAEDD7E784FC07D8F9EC6E3BFD5" \ + "C3DBA76456363A10869622EAC2DD84EC" \ + "C5B8A74DAC4D09E03B5E0BE779F2DF61" ) ); + + if( verbose != 0 ) + mbedtls_printf( " MPI test #4 (inv_mod): " ); + + if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto cleanup; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " MPI test #5 (simple gcd): " ); + + for( i = 0; i < GCD_PAIR_COUNT; i++ ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &X, gcd_pairs[i][0] ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &Y, gcd_pairs[i][1] ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &A, &X, &Y ) ); + + if( mbedtls_mpi_cmp_int( &A, gcd_pairs[i][2] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed at %d\n", i ); + + ret = 1; + goto cleanup; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + +cleanup: + + if( ret != 0 && verbose != 0 ) + mbedtls_printf( "Unexpected error, return code = %08X\n", ret ); + + mbedtls_mpi_free( &A ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &N ); mbedtls_mpi_free( &X ); + mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &U ); mbedtls_mpi_free( &V ); + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_BIGNUM_C */ diff --git a/mbedtls/blowfish.c b/mbedtls/blowfish.c new file mode 100644 index 0000000..9003f0d --- /dev/null +++ b/mbedtls/blowfish.c @@ -0,0 +1,656 @@ +/* + * Blowfish implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The Blowfish block cipher was designed by Bruce Schneier in 1993. + * http://www.schneier.com/blowfish.html + * http://en.wikipedia.org/wiki/Blowfish_%28cipher%29 + * + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_BLOWFISH_C) + +#include "mbedtls/blowfish.h" + +#include + +#if !defined(MBEDTLS_BLOWFISH_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +static const uint32_t P[MBEDTLS_BLOWFISH_ROUNDS + 2] = { + 0x243F6A88L, 0x85A308D3L, 0x13198A2EL, 0x03707344L, + 0xA4093822L, 0x299F31D0L, 0x082EFA98L, 0xEC4E6C89L, + 0x452821E6L, 0x38D01377L, 0xBE5466CFL, 0x34E90C6CL, + 0xC0AC29B7L, 0xC97C50DDL, 0x3F84D5B5L, 0xB5470917L, + 0x9216D5D9L, 0x8979FB1BL +}; + +/* declarations of data at the end of this file */ +static const uint32_t S[4][256]; + +static uint32_t F( mbedtls_blowfish_context *ctx, uint32_t x ) +{ + unsigned short a, b, c, d; + uint32_t y; + + d = (unsigned short)(x & 0xFF); + x >>= 8; + c = (unsigned short)(x & 0xFF); + x >>= 8; + b = (unsigned short)(x & 0xFF); + x >>= 8; + a = (unsigned short)(x & 0xFF); + y = ctx->S[0][a] + ctx->S[1][b]; + y = y ^ ctx->S[2][c]; + y = y + ctx->S[3][d]; + + return( y ); +} + +static void blowfish_enc( mbedtls_blowfish_context *ctx, uint32_t *xl, uint32_t *xr ) +{ + uint32_t Xl, Xr, temp; + short i; + + Xl = *xl; + Xr = *xr; + + for( i = 0; i < MBEDTLS_BLOWFISH_ROUNDS; ++i ) + { + Xl = Xl ^ ctx->P[i]; + Xr = F( ctx, Xl ) ^ Xr; + + temp = Xl; + Xl = Xr; + Xr = temp; + } + + temp = Xl; + Xl = Xr; + Xr = temp; + + Xr = Xr ^ ctx->P[MBEDTLS_BLOWFISH_ROUNDS]; + Xl = Xl ^ ctx->P[MBEDTLS_BLOWFISH_ROUNDS + 1]; + + *xl = Xl; + *xr = Xr; +} + +static void blowfish_dec( mbedtls_blowfish_context *ctx, uint32_t *xl, uint32_t *xr ) +{ + uint32_t Xl, Xr, temp; + short i; + + Xl = *xl; + Xr = *xr; + + for( i = MBEDTLS_BLOWFISH_ROUNDS + 1; i > 1; --i ) + { + Xl = Xl ^ ctx->P[i]; + Xr = F( ctx, Xl ) ^ Xr; + + temp = Xl; + Xl = Xr; + Xr = temp; + } + + temp = Xl; + Xl = Xr; + Xr = temp; + + Xr = Xr ^ ctx->P[1]; + Xl = Xl ^ ctx->P[0]; + + *xl = Xl; + *xr = Xr; +} + +void mbedtls_blowfish_init( mbedtls_blowfish_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_blowfish_context ) ); +} + +void mbedtls_blowfish_free( mbedtls_blowfish_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_blowfish_context ) ); +} + +/* + * Blowfish key schedule + */ +int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx, const unsigned char *key, + unsigned int keybits ) +{ + unsigned int i, j, k; + uint32_t data, datal, datar; + + if( keybits < MBEDTLS_BLOWFISH_MIN_KEY_BITS || keybits > MBEDTLS_BLOWFISH_MAX_KEY_BITS || + ( keybits % 8 ) ) + { + return( MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH ); + } + + keybits >>= 3; + + for( i = 0; i < 4; i++ ) + { + for( j = 0; j < 256; j++ ) + ctx->S[i][j] = S[i][j]; + } + + j = 0; + for( i = 0; i < MBEDTLS_BLOWFISH_ROUNDS + 2; ++i ) + { + data = 0x00000000; + for( k = 0; k < 4; ++k ) + { + data = ( data << 8 ) | key[j++]; + if( j >= keybits ) + j = 0; + } + ctx->P[i] = P[i] ^ data; + } + + datal = 0x00000000; + datar = 0x00000000; + + for( i = 0; i < MBEDTLS_BLOWFISH_ROUNDS + 2; i += 2 ) + { + blowfish_enc( ctx, &datal, &datar ); + ctx->P[i] = datal; + ctx->P[i + 1] = datar; + } + + for( i = 0; i < 4; i++ ) + { + for( j = 0; j < 256; j += 2 ) + { + blowfish_enc( ctx, &datal, &datar ); + ctx->S[i][j] = datal; + ctx->S[i][j + 1] = datar; + } + } + return( 0 ); +} + +/* + * Blowfish-ECB block encryption/decryption + */ +int mbedtls_blowfish_crypt_ecb( mbedtls_blowfish_context *ctx, + int mode, + const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE], + unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE] ) +{ + uint32_t X0, X1; + + GET_UINT32_BE( X0, input, 0 ); + GET_UINT32_BE( X1, input, 4 ); + + if( mode == MBEDTLS_BLOWFISH_DECRYPT ) + { + blowfish_dec( ctx, &X0, &X1 ); + } + else /* MBEDTLS_BLOWFISH_ENCRYPT */ + { + blowfish_enc( ctx, &X0, &X1 ); + } + + PUT_UINT32_BE( X0, output, 0 ); + PUT_UINT32_BE( X1, output, 4 ); + + return( 0 ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/* + * Blowfish-CBC buffer encryption/decryption + */ +int mbedtls_blowfish_crypt_cbc( mbedtls_blowfish_context *ctx, + int mode, + size_t length, + unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE], + const unsigned char *input, + unsigned char *output ) +{ + int i; + unsigned char temp[MBEDTLS_BLOWFISH_BLOCKSIZE]; + + if( length % MBEDTLS_BLOWFISH_BLOCKSIZE ) + return( MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH ); + + if( mode == MBEDTLS_BLOWFISH_DECRYPT ) + { + while( length > 0 ) + { + memcpy( temp, input, MBEDTLS_BLOWFISH_BLOCKSIZE ); + mbedtls_blowfish_crypt_ecb( ctx, mode, input, output ); + + for( i = 0; i < MBEDTLS_BLOWFISH_BLOCKSIZE;i++ ) + output[i] = (unsigned char)( output[i] ^ iv[i] ); + + memcpy( iv, temp, MBEDTLS_BLOWFISH_BLOCKSIZE ); + + input += MBEDTLS_BLOWFISH_BLOCKSIZE; + output += MBEDTLS_BLOWFISH_BLOCKSIZE; + length -= MBEDTLS_BLOWFISH_BLOCKSIZE; + } + } + else + { + while( length > 0 ) + { + for( i = 0; i < MBEDTLS_BLOWFISH_BLOCKSIZE; i++ ) + output[i] = (unsigned char)( input[i] ^ iv[i] ); + + mbedtls_blowfish_crypt_ecb( ctx, mode, output, output ); + memcpy( iv, output, MBEDTLS_BLOWFISH_BLOCKSIZE ); + + input += MBEDTLS_BLOWFISH_BLOCKSIZE; + output += MBEDTLS_BLOWFISH_BLOCKSIZE; + length -= MBEDTLS_BLOWFISH_BLOCKSIZE; + } + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/* + * Blowfish CFB buffer encryption/decryption + */ +int mbedtls_blowfish_crypt_cfb64( mbedtls_blowfish_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE], + const unsigned char *input, + unsigned char *output ) +{ + int c; + size_t n = *iv_off; + + if( mode == MBEDTLS_BLOWFISH_DECRYPT ) + { + while( length-- ) + { + if( n == 0 ) + mbedtls_blowfish_crypt_ecb( ctx, MBEDTLS_BLOWFISH_ENCRYPT, iv, iv ); + + c = *input++; + *output++ = (unsigned char)( c ^ iv[n] ); + iv[n] = (unsigned char) c; + + n = ( n + 1 ) % MBEDTLS_BLOWFISH_BLOCKSIZE; + } + } + else + { + while( length-- ) + { + if( n == 0 ) + mbedtls_blowfish_crypt_ecb( ctx, MBEDTLS_BLOWFISH_ENCRYPT, iv, iv ); + + iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ ); + + n = ( n + 1 ) % MBEDTLS_BLOWFISH_BLOCKSIZE; + } + } + + *iv_off = n; + + return( 0 ); +} +#endif /*MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/* + * Blowfish CTR buffer encryption/decryption + */ +int mbedtls_blowfish_crypt_ctr( mbedtls_blowfish_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[MBEDTLS_BLOWFISH_BLOCKSIZE], + unsigned char stream_block[MBEDTLS_BLOWFISH_BLOCKSIZE], + const unsigned char *input, + unsigned char *output ) +{ + int c, i; + size_t n = *nc_off; + + while( length-- ) + { + if( n == 0 ) { + mbedtls_blowfish_crypt_ecb( ctx, MBEDTLS_BLOWFISH_ENCRYPT, nonce_counter, + stream_block ); + + for( i = MBEDTLS_BLOWFISH_BLOCKSIZE; i > 0; i-- ) + if( ++nonce_counter[i - 1] != 0 ) + break; + } + c = *input++; + *output++ = (unsigned char)( c ^ stream_block[n] ); + + n = ( n + 1 ) % MBEDTLS_BLOWFISH_BLOCKSIZE; + } + + *nc_off = n; + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +static const uint32_t S[4][256] = { + { 0xD1310BA6L, 0x98DFB5ACL, 0x2FFD72DBL, 0xD01ADFB7L, + 0xB8E1AFEDL, 0x6A267E96L, 0xBA7C9045L, 0xF12C7F99L, + 0x24A19947L, 0xB3916CF7L, 0x0801F2E2L, 0x858EFC16L, + 0x636920D8L, 0x71574E69L, 0xA458FEA3L, 0xF4933D7EL, + 0x0D95748FL, 0x728EB658L, 0x718BCD58L, 0x82154AEEL, + 0x7B54A41DL, 0xC25A59B5L, 0x9C30D539L, 0x2AF26013L, + 0xC5D1B023L, 0x286085F0L, 0xCA417918L, 0xB8DB38EFL, + 0x8E79DCB0L, 0x603A180EL, 0x6C9E0E8BL, 0xB01E8A3EL, + 0xD71577C1L, 0xBD314B27L, 0x78AF2FDAL, 0x55605C60L, + 0xE65525F3L, 0xAA55AB94L, 0x57489862L, 0x63E81440L, + 0x55CA396AL, 0x2AAB10B6L, 0xB4CC5C34L, 0x1141E8CEL, + 0xA15486AFL, 0x7C72E993L, 0xB3EE1411L, 0x636FBC2AL, + 0x2BA9C55DL, 0x741831F6L, 0xCE5C3E16L, 0x9B87931EL, + 0xAFD6BA33L, 0x6C24CF5CL, 0x7A325381L, 0x28958677L, + 0x3B8F4898L, 0x6B4BB9AFL, 0xC4BFE81BL, 0x66282193L, + 0x61D809CCL, 0xFB21A991L, 0x487CAC60L, 0x5DEC8032L, + 0xEF845D5DL, 0xE98575B1L, 0xDC262302L, 0xEB651B88L, + 0x23893E81L, 0xD396ACC5L, 0x0F6D6FF3L, 0x83F44239L, + 0x2E0B4482L, 0xA4842004L, 0x69C8F04AL, 0x9E1F9B5EL, + 0x21C66842L, 0xF6E96C9AL, 0x670C9C61L, 0xABD388F0L, + 0x6A51A0D2L, 0xD8542F68L, 0x960FA728L, 0xAB5133A3L, + 0x6EEF0B6CL, 0x137A3BE4L, 0xBA3BF050L, 0x7EFB2A98L, + 0xA1F1651DL, 0x39AF0176L, 0x66CA593EL, 0x82430E88L, + 0x8CEE8619L, 0x456F9FB4L, 0x7D84A5C3L, 0x3B8B5EBEL, + 0xE06F75D8L, 0x85C12073L, 0x401A449FL, 0x56C16AA6L, + 0x4ED3AA62L, 0x363F7706L, 0x1BFEDF72L, 0x429B023DL, + 0x37D0D724L, 0xD00A1248L, 0xDB0FEAD3L, 0x49F1C09BL, + 0x075372C9L, 0x80991B7BL, 0x25D479D8L, 0xF6E8DEF7L, + 0xE3FE501AL, 0xB6794C3BL, 0x976CE0BDL, 0x04C006BAL, + 0xC1A94FB6L, 0x409F60C4L, 0x5E5C9EC2L, 0x196A2463L, + 0x68FB6FAFL, 0x3E6C53B5L, 0x1339B2EBL, 0x3B52EC6FL, + 0x6DFC511FL, 0x9B30952CL, 0xCC814544L, 0xAF5EBD09L, + 0xBEE3D004L, 0xDE334AFDL, 0x660F2807L, 0x192E4BB3L, + 0xC0CBA857L, 0x45C8740FL, 0xD20B5F39L, 0xB9D3FBDBL, + 0x5579C0BDL, 0x1A60320AL, 0xD6A100C6L, 0x402C7279L, + 0x679F25FEL, 0xFB1FA3CCL, 0x8EA5E9F8L, 0xDB3222F8L, + 0x3C7516DFL, 0xFD616B15L, 0x2F501EC8L, 0xAD0552ABL, + 0x323DB5FAL, 0xFD238760L, 0x53317B48L, 0x3E00DF82L, + 0x9E5C57BBL, 0xCA6F8CA0L, 0x1A87562EL, 0xDF1769DBL, + 0xD542A8F6L, 0x287EFFC3L, 0xAC6732C6L, 0x8C4F5573L, + 0x695B27B0L, 0xBBCA58C8L, 0xE1FFA35DL, 0xB8F011A0L, + 0x10FA3D98L, 0xFD2183B8L, 0x4AFCB56CL, 0x2DD1D35BL, + 0x9A53E479L, 0xB6F84565L, 0xD28E49BCL, 0x4BFB9790L, + 0xE1DDF2DAL, 0xA4CB7E33L, 0x62FB1341L, 0xCEE4C6E8L, + 0xEF20CADAL, 0x36774C01L, 0xD07E9EFEL, 0x2BF11FB4L, + 0x95DBDA4DL, 0xAE909198L, 0xEAAD8E71L, 0x6B93D5A0L, + 0xD08ED1D0L, 0xAFC725E0L, 0x8E3C5B2FL, 0x8E7594B7L, + 0x8FF6E2FBL, 0xF2122B64L, 0x8888B812L, 0x900DF01CL, + 0x4FAD5EA0L, 0x688FC31CL, 0xD1CFF191L, 0xB3A8C1ADL, + 0x2F2F2218L, 0xBE0E1777L, 0xEA752DFEL, 0x8B021FA1L, + 0xE5A0CC0FL, 0xB56F74E8L, 0x18ACF3D6L, 0xCE89E299L, + 0xB4A84FE0L, 0xFD13E0B7L, 0x7CC43B81L, 0xD2ADA8D9L, + 0x165FA266L, 0x80957705L, 0x93CC7314L, 0x211A1477L, + 0xE6AD2065L, 0x77B5FA86L, 0xC75442F5L, 0xFB9D35CFL, + 0xEBCDAF0CL, 0x7B3E89A0L, 0xD6411BD3L, 0xAE1E7E49L, + 0x00250E2DL, 0x2071B35EL, 0x226800BBL, 0x57B8E0AFL, + 0x2464369BL, 0xF009B91EL, 0x5563911DL, 0x59DFA6AAL, + 0x78C14389L, 0xD95A537FL, 0x207D5BA2L, 0x02E5B9C5L, + 0x83260376L, 0x6295CFA9L, 0x11C81968L, 0x4E734A41L, + 0xB3472DCAL, 0x7B14A94AL, 0x1B510052L, 0x9A532915L, + 0xD60F573FL, 0xBC9BC6E4L, 0x2B60A476L, 0x81E67400L, + 0x08BA6FB5L, 0x571BE91FL, 0xF296EC6BL, 0x2A0DD915L, + 0xB6636521L, 0xE7B9F9B6L, 0xFF34052EL, 0xC5855664L, + 0x53B02D5DL, 0xA99F8FA1L, 0x08BA4799L, 0x6E85076AL }, + { 0x4B7A70E9L, 0xB5B32944L, 0xDB75092EL, 0xC4192623L, + 0xAD6EA6B0L, 0x49A7DF7DL, 0x9CEE60B8L, 0x8FEDB266L, + 0xECAA8C71L, 0x699A17FFL, 0x5664526CL, 0xC2B19EE1L, + 0x193602A5L, 0x75094C29L, 0xA0591340L, 0xE4183A3EL, + 0x3F54989AL, 0x5B429D65L, 0x6B8FE4D6L, 0x99F73FD6L, + 0xA1D29C07L, 0xEFE830F5L, 0x4D2D38E6L, 0xF0255DC1L, + 0x4CDD2086L, 0x8470EB26L, 0x6382E9C6L, 0x021ECC5EL, + 0x09686B3FL, 0x3EBAEFC9L, 0x3C971814L, 0x6B6A70A1L, + 0x687F3584L, 0x52A0E286L, 0xB79C5305L, 0xAA500737L, + 0x3E07841CL, 0x7FDEAE5CL, 0x8E7D44ECL, 0x5716F2B8L, + 0xB03ADA37L, 0xF0500C0DL, 0xF01C1F04L, 0x0200B3FFL, + 0xAE0CF51AL, 0x3CB574B2L, 0x25837A58L, 0xDC0921BDL, + 0xD19113F9L, 0x7CA92FF6L, 0x94324773L, 0x22F54701L, + 0x3AE5E581L, 0x37C2DADCL, 0xC8B57634L, 0x9AF3DDA7L, + 0xA9446146L, 0x0FD0030EL, 0xECC8C73EL, 0xA4751E41L, + 0xE238CD99L, 0x3BEA0E2FL, 0x3280BBA1L, 0x183EB331L, + 0x4E548B38L, 0x4F6DB908L, 0x6F420D03L, 0xF60A04BFL, + 0x2CB81290L, 0x24977C79L, 0x5679B072L, 0xBCAF89AFL, + 0xDE9A771FL, 0xD9930810L, 0xB38BAE12L, 0xDCCF3F2EL, + 0x5512721FL, 0x2E6B7124L, 0x501ADDE6L, 0x9F84CD87L, + 0x7A584718L, 0x7408DA17L, 0xBC9F9ABCL, 0xE94B7D8CL, + 0xEC7AEC3AL, 0xDB851DFAL, 0x63094366L, 0xC464C3D2L, + 0xEF1C1847L, 0x3215D908L, 0xDD433B37L, 0x24C2BA16L, + 0x12A14D43L, 0x2A65C451L, 0x50940002L, 0x133AE4DDL, + 0x71DFF89EL, 0x10314E55L, 0x81AC77D6L, 0x5F11199BL, + 0x043556F1L, 0xD7A3C76BL, 0x3C11183BL, 0x5924A509L, + 0xF28FE6EDL, 0x97F1FBFAL, 0x9EBABF2CL, 0x1E153C6EL, + 0x86E34570L, 0xEAE96FB1L, 0x860E5E0AL, 0x5A3E2AB3L, + 0x771FE71CL, 0x4E3D06FAL, 0x2965DCB9L, 0x99E71D0FL, + 0x803E89D6L, 0x5266C825L, 0x2E4CC978L, 0x9C10B36AL, + 0xC6150EBAL, 0x94E2EA78L, 0xA5FC3C53L, 0x1E0A2DF4L, + 0xF2F74EA7L, 0x361D2B3DL, 0x1939260FL, 0x19C27960L, + 0x5223A708L, 0xF71312B6L, 0xEBADFE6EL, 0xEAC31F66L, + 0xE3BC4595L, 0xA67BC883L, 0xB17F37D1L, 0x018CFF28L, + 0xC332DDEFL, 0xBE6C5AA5L, 0x65582185L, 0x68AB9802L, + 0xEECEA50FL, 0xDB2F953BL, 0x2AEF7DADL, 0x5B6E2F84L, + 0x1521B628L, 0x29076170L, 0xECDD4775L, 0x619F1510L, + 0x13CCA830L, 0xEB61BD96L, 0x0334FE1EL, 0xAA0363CFL, + 0xB5735C90L, 0x4C70A239L, 0xD59E9E0BL, 0xCBAADE14L, + 0xEECC86BCL, 0x60622CA7L, 0x9CAB5CABL, 0xB2F3846EL, + 0x648B1EAFL, 0x19BDF0CAL, 0xA02369B9L, 0x655ABB50L, + 0x40685A32L, 0x3C2AB4B3L, 0x319EE9D5L, 0xC021B8F7L, + 0x9B540B19L, 0x875FA099L, 0x95F7997EL, 0x623D7DA8L, + 0xF837889AL, 0x97E32D77L, 0x11ED935FL, 0x16681281L, + 0x0E358829L, 0xC7E61FD6L, 0x96DEDFA1L, 0x7858BA99L, + 0x57F584A5L, 0x1B227263L, 0x9B83C3FFL, 0x1AC24696L, + 0xCDB30AEBL, 0x532E3054L, 0x8FD948E4L, 0x6DBC3128L, + 0x58EBF2EFL, 0x34C6FFEAL, 0xFE28ED61L, 0xEE7C3C73L, + 0x5D4A14D9L, 0xE864B7E3L, 0x42105D14L, 0x203E13E0L, + 0x45EEE2B6L, 0xA3AAABEAL, 0xDB6C4F15L, 0xFACB4FD0L, + 0xC742F442L, 0xEF6ABBB5L, 0x654F3B1DL, 0x41CD2105L, + 0xD81E799EL, 0x86854DC7L, 0xE44B476AL, 0x3D816250L, + 0xCF62A1F2L, 0x5B8D2646L, 0xFC8883A0L, 0xC1C7B6A3L, + 0x7F1524C3L, 0x69CB7492L, 0x47848A0BL, 0x5692B285L, + 0x095BBF00L, 0xAD19489DL, 0x1462B174L, 0x23820E00L, + 0x58428D2AL, 0x0C55F5EAL, 0x1DADF43EL, 0x233F7061L, + 0x3372F092L, 0x8D937E41L, 0xD65FECF1L, 0x6C223BDBL, + 0x7CDE3759L, 0xCBEE7460L, 0x4085F2A7L, 0xCE77326EL, + 0xA6078084L, 0x19F8509EL, 0xE8EFD855L, 0x61D99735L, + 0xA969A7AAL, 0xC50C06C2L, 0x5A04ABFCL, 0x800BCADCL, + 0x9E447A2EL, 0xC3453484L, 0xFDD56705L, 0x0E1E9EC9L, + 0xDB73DBD3L, 0x105588CDL, 0x675FDA79L, 0xE3674340L, + 0xC5C43465L, 0x713E38D8L, 0x3D28F89EL, 0xF16DFF20L, + 0x153E21E7L, 0x8FB03D4AL, 0xE6E39F2BL, 0xDB83ADF7L }, + { 0xE93D5A68L, 0x948140F7L, 0xF64C261CL, 0x94692934L, + 0x411520F7L, 0x7602D4F7L, 0xBCF46B2EL, 0xD4A20068L, + 0xD4082471L, 0x3320F46AL, 0x43B7D4B7L, 0x500061AFL, + 0x1E39F62EL, 0x97244546L, 0x14214F74L, 0xBF8B8840L, + 0x4D95FC1DL, 0x96B591AFL, 0x70F4DDD3L, 0x66A02F45L, + 0xBFBC09ECL, 0x03BD9785L, 0x7FAC6DD0L, 0x31CB8504L, + 0x96EB27B3L, 0x55FD3941L, 0xDA2547E6L, 0xABCA0A9AL, + 0x28507825L, 0x530429F4L, 0x0A2C86DAL, 0xE9B66DFBL, + 0x68DC1462L, 0xD7486900L, 0x680EC0A4L, 0x27A18DEEL, + 0x4F3FFEA2L, 0xE887AD8CL, 0xB58CE006L, 0x7AF4D6B6L, + 0xAACE1E7CL, 0xD3375FECL, 0xCE78A399L, 0x406B2A42L, + 0x20FE9E35L, 0xD9F385B9L, 0xEE39D7ABL, 0x3B124E8BL, + 0x1DC9FAF7L, 0x4B6D1856L, 0x26A36631L, 0xEAE397B2L, + 0x3A6EFA74L, 0xDD5B4332L, 0x6841E7F7L, 0xCA7820FBL, + 0xFB0AF54EL, 0xD8FEB397L, 0x454056ACL, 0xBA489527L, + 0x55533A3AL, 0x20838D87L, 0xFE6BA9B7L, 0xD096954BL, + 0x55A867BCL, 0xA1159A58L, 0xCCA92963L, 0x99E1DB33L, + 0xA62A4A56L, 0x3F3125F9L, 0x5EF47E1CL, 0x9029317CL, + 0xFDF8E802L, 0x04272F70L, 0x80BB155CL, 0x05282CE3L, + 0x95C11548L, 0xE4C66D22L, 0x48C1133FL, 0xC70F86DCL, + 0x07F9C9EEL, 0x41041F0FL, 0x404779A4L, 0x5D886E17L, + 0x325F51EBL, 0xD59BC0D1L, 0xF2BCC18FL, 0x41113564L, + 0x257B7834L, 0x602A9C60L, 0xDFF8E8A3L, 0x1F636C1BL, + 0x0E12B4C2L, 0x02E1329EL, 0xAF664FD1L, 0xCAD18115L, + 0x6B2395E0L, 0x333E92E1L, 0x3B240B62L, 0xEEBEB922L, + 0x85B2A20EL, 0xE6BA0D99L, 0xDE720C8CL, 0x2DA2F728L, + 0xD0127845L, 0x95B794FDL, 0x647D0862L, 0xE7CCF5F0L, + 0x5449A36FL, 0x877D48FAL, 0xC39DFD27L, 0xF33E8D1EL, + 0x0A476341L, 0x992EFF74L, 0x3A6F6EABL, 0xF4F8FD37L, + 0xA812DC60L, 0xA1EBDDF8L, 0x991BE14CL, 0xDB6E6B0DL, + 0xC67B5510L, 0x6D672C37L, 0x2765D43BL, 0xDCD0E804L, + 0xF1290DC7L, 0xCC00FFA3L, 0xB5390F92L, 0x690FED0BL, + 0x667B9FFBL, 0xCEDB7D9CL, 0xA091CF0BL, 0xD9155EA3L, + 0xBB132F88L, 0x515BAD24L, 0x7B9479BFL, 0x763BD6EBL, + 0x37392EB3L, 0xCC115979L, 0x8026E297L, 0xF42E312DL, + 0x6842ADA7L, 0xC66A2B3BL, 0x12754CCCL, 0x782EF11CL, + 0x6A124237L, 0xB79251E7L, 0x06A1BBE6L, 0x4BFB6350L, + 0x1A6B1018L, 0x11CAEDFAL, 0x3D25BDD8L, 0xE2E1C3C9L, + 0x44421659L, 0x0A121386L, 0xD90CEC6EL, 0xD5ABEA2AL, + 0x64AF674EL, 0xDA86A85FL, 0xBEBFE988L, 0x64E4C3FEL, + 0x9DBC8057L, 0xF0F7C086L, 0x60787BF8L, 0x6003604DL, + 0xD1FD8346L, 0xF6381FB0L, 0x7745AE04L, 0xD736FCCCL, + 0x83426B33L, 0xF01EAB71L, 0xB0804187L, 0x3C005E5FL, + 0x77A057BEL, 0xBDE8AE24L, 0x55464299L, 0xBF582E61L, + 0x4E58F48FL, 0xF2DDFDA2L, 0xF474EF38L, 0x8789BDC2L, + 0x5366F9C3L, 0xC8B38E74L, 0xB475F255L, 0x46FCD9B9L, + 0x7AEB2661L, 0x8B1DDF84L, 0x846A0E79L, 0x915F95E2L, + 0x466E598EL, 0x20B45770L, 0x8CD55591L, 0xC902DE4CL, + 0xB90BACE1L, 0xBB8205D0L, 0x11A86248L, 0x7574A99EL, + 0xB77F19B6L, 0xE0A9DC09L, 0x662D09A1L, 0xC4324633L, + 0xE85A1F02L, 0x09F0BE8CL, 0x4A99A025L, 0x1D6EFE10L, + 0x1AB93D1DL, 0x0BA5A4DFL, 0xA186F20FL, 0x2868F169L, + 0xDCB7DA83L, 0x573906FEL, 0xA1E2CE9BL, 0x4FCD7F52L, + 0x50115E01L, 0xA70683FAL, 0xA002B5C4L, 0x0DE6D027L, + 0x9AF88C27L, 0x773F8641L, 0xC3604C06L, 0x61A806B5L, + 0xF0177A28L, 0xC0F586E0L, 0x006058AAL, 0x30DC7D62L, + 0x11E69ED7L, 0x2338EA63L, 0x53C2DD94L, 0xC2C21634L, + 0xBBCBEE56L, 0x90BCB6DEL, 0xEBFC7DA1L, 0xCE591D76L, + 0x6F05E409L, 0x4B7C0188L, 0x39720A3DL, 0x7C927C24L, + 0x86E3725FL, 0x724D9DB9L, 0x1AC15BB4L, 0xD39EB8FCL, + 0xED545578L, 0x08FCA5B5L, 0xD83D7CD3L, 0x4DAD0FC4L, + 0x1E50EF5EL, 0xB161E6F8L, 0xA28514D9L, 0x6C51133CL, + 0x6FD5C7E7L, 0x56E14EC4L, 0x362ABFCEL, 0xDDC6C837L, + 0xD79A3234L, 0x92638212L, 0x670EFA8EL, 0x406000E0L }, + { 0x3A39CE37L, 0xD3FAF5CFL, 0xABC27737L, 0x5AC52D1BL, + 0x5CB0679EL, 0x4FA33742L, 0xD3822740L, 0x99BC9BBEL, + 0xD5118E9DL, 0xBF0F7315L, 0xD62D1C7EL, 0xC700C47BL, + 0xB78C1B6BL, 0x21A19045L, 0xB26EB1BEL, 0x6A366EB4L, + 0x5748AB2FL, 0xBC946E79L, 0xC6A376D2L, 0x6549C2C8L, + 0x530FF8EEL, 0x468DDE7DL, 0xD5730A1DL, 0x4CD04DC6L, + 0x2939BBDBL, 0xA9BA4650L, 0xAC9526E8L, 0xBE5EE304L, + 0xA1FAD5F0L, 0x6A2D519AL, 0x63EF8CE2L, 0x9A86EE22L, + 0xC089C2B8L, 0x43242EF6L, 0xA51E03AAL, 0x9CF2D0A4L, + 0x83C061BAL, 0x9BE96A4DL, 0x8FE51550L, 0xBA645BD6L, + 0x2826A2F9L, 0xA73A3AE1L, 0x4BA99586L, 0xEF5562E9L, + 0xC72FEFD3L, 0xF752F7DAL, 0x3F046F69L, 0x77FA0A59L, + 0x80E4A915L, 0x87B08601L, 0x9B09E6ADL, 0x3B3EE593L, + 0xE990FD5AL, 0x9E34D797L, 0x2CF0B7D9L, 0x022B8B51L, + 0x96D5AC3AL, 0x017DA67DL, 0xD1CF3ED6L, 0x7C7D2D28L, + 0x1F9F25CFL, 0xADF2B89BL, 0x5AD6B472L, 0x5A88F54CL, + 0xE029AC71L, 0xE019A5E6L, 0x47B0ACFDL, 0xED93FA9BL, + 0xE8D3C48DL, 0x283B57CCL, 0xF8D56629L, 0x79132E28L, + 0x785F0191L, 0xED756055L, 0xF7960E44L, 0xE3D35E8CL, + 0x15056DD4L, 0x88F46DBAL, 0x03A16125L, 0x0564F0BDL, + 0xC3EB9E15L, 0x3C9057A2L, 0x97271AECL, 0xA93A072AL, + 0x1B3F6D9BL, 0x1E6321F5L, 0xF59C66FBL, 0x26DCF319L, + 0x7533D928L, 0xB155FDF5L, 0x03563482L, 0x8ABA3CBBL, + 0x28517711L, 0xC20AD9F8L, 0xABCC5167L, 0xCCAD925FL, + 0x4DE81751L, 0x3830DC8EL, 0x379D5862L, 0x9320F991L, + 0xEA7A90C2L, 0xFB3E7BCEL, 0x5121CE64L, 0x774FBE32L, + 0xA8B6E37EL, 0xC3293D46L, 0x48DE5369L, 0x6413E680L, + 0xA2AE0810L, 0xDD6DB224L, 0x69852DFDL, 0x09072166L, + 0xB39A460AL, 0x6445C0DDL, 0x586CDECFL, 0x1C20C8AEL, + 0x5BBEF7DDL, 0x1B588D40L, 0xCCD2017FL, 0x6BB4E3BBL, + 0xDDA26A7EL, 0x3A59FF45L, 0x3E350A44L, 0xBCB4CDD5L, + 0x72EACEA8L, 0xFA6484BBL, 0x8D6612AEL, 0xBF3C6F47L, + 0xD29BE463L, 0x542F5D9EL, 0xAEC2771BL, 0xF64E6370L, + 0x740E0D8DL, 0xE75B1357L, 0xF8721671L, 0xAF537D5DL, + 0x4040CB08L, 0x4EB4E2CCL, 0x34D2466AL, 0x0115AF84L, + 0xE1B00428L, 0x95983A1DL, 0x06B89FB4L, 0xCE6EA048L, + 0x6F3F3B82L, 0x3520AB82L, 0x011A1D4BL, 0x277227F8L, + 0x611560B1L, 0xE7933FDCL, 0xBB3A792BL, 0x344525BDL, + 0xA08839E1L, 0x51CE794BL, 0x2F32C9B7L, 0xA01FBAC9L, + 0xE01CC87EL, 0xBCC7D1F6L, 0xCF0111C3L, 0xA1E8AAC7L, + 0x1A908749L, 0xD44FBD9AL, 0xD0DADECBL, 0xD50ADA38L, + 0x0339C32AL, 0xC6913667L, 0x8DF9317CL, 0xE0B12B4FL, + 0xF79E59B7L, 0x43F5BB3AL, 0xF2D519FFL, 0x27D9459CL, + 0xBF97222CL, 0x15E6FC2AL, 0x0F91FC71L, 0x9B941525L, + 0xFAE59361L, 0xCEB69CEBL, 0xC2A86459L, 0x12BAA8D1L, + 0xB6C1075EL, 0xE3056A0CL, 0x10D25065L, 0xCB03A442L, + 0xE0EC6E0EL, 0x1698DB3BL, 0x4C98A0BEL, 0x3278E964L, + 0x9F1F9532L, 0xE0D392DFL, 0xD3A0342BL, 0x8971F21EL, + 0x1B0A7441L, 0x4BA3348CL, 0xC5BE7120L, 0xC37632D8L, + 0xDF359F8DL, 0x9B992F2EL, 0xE60B6F47L, 0x0FE3F11DL, + 0xE54CDA54L, 0x1EDAD891L, 0xCE6279CFL, 0xCD3E7E6FL, + 0x1618B166L, 0xFD2C1D05L, 0x848FD2C5L, 0xF6FB2299L, + 0xF523F357L, 0xA6327623L, 0x93A83531L, 0x56CCCD02L, + 0xACF08162L, 0x5A75EBB5L, 0x6E163697L, 0x88D273CCL, + 0xDE966292L, 0x81B949D0L, 0x4C50901BL, 0x71C65614L, + 0xE6C6C7BDL, 0x327A140AL, 0x45E1D006L, 0xC3F27B9AL, + 0xC9AA53FDL, 0x62A80F00L, 0xBB25BFE2L, 0x35BDD2F6L, + 0x71126905L, 0xB2040222L, 0xB6CBCF7CL, 0xCD769C2BL, + 0x53113EC0L, 0x1640E3D3L, 0x38ABBD60L, 0x2547ADF0L, + 0xBA38209CL, 0xF746CE76L, 0x77AFA1C5L, 0x20756060L, + 0x85CBFE4EL, 0x8AE88DD8L, 0x7AAAF9B0L, 0x4CF9AA7EL, + 0x1948C25CL, 0x02FB8A8CL, 0x01C36AE4L, 0xD6EBE1F9L, + 0x90D4F869L, 0xA65CDEA0L, 0x3F09252DL, 0xC208E69FL, + 0xB74E6132L, 0xCE77E25BL, 0x578FDFE3L, 0x3AC372E6L } +}; + +#endif /* !MBEDTLS_BLOWFISH_ALT */ +#endif /* MBEDTLS_BLOWFISH_C */ diff --git a/mbedtls/camellia.c b/mbedtls/camellia.c new file mode 100644 index 0000000..ac6f96a --- /dev/null +++ b/mbedtls/camellia.c @@ -0,0 +1,1072 @@ +/* + * Camellia implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The Camellia block cipher was designed by NTT and Mitsubishi Electric + * Corporation. + * + * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/01espec.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CAMELLIA_C) + +#include "mbedtls/camellia.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_CAMELLIA_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +static const unsigned char SIGMA_CHARS[6][8] = +{ + { 0xa0, 0x9e, 0x66, 0x7f, 0x3b, 0xcc, 0x90, 0x8b }, + { 0xb6, 0x7a, 0xe8, 0x58, 0x4c, 0xaa, 0x73, 0xb2 }, + { 0xc6, 0xef, 0x37, 0x2f, 0xe9, 0x4f, 0x82, 0xbe }, + { 0x54, 0xff, 0x53, 0xa5, 0xf1, 0xd3, 0x6f, 0x1c }, + { 0x10, 0xe5, 0x27, 0xfa, 0xde, 0x68, 0x2d, 0x1d }, + { 0xb0, 0x56, 0x88, 0xc2, 0xb3, 0xe6, 0xc1, 0xfd } +}; + +#if defined(MBEDTLS_CAMELLIA_SMALL_MEMORY) + +static const unsigned char FSb[256] = +{ + 112,130, 44,236,179, 39,192,229,228,133, 87, 53,234, 12,174, 65, + 35,239,107,147, 69, 25,165, 33,237, 14, 79, 78, 29,101,146,189, + 134,184,175,143,124,235, 31,206, 62, 48,220, 95, 94,197, 11, 26, + 166,225, 57,202,213, 71, 93, 61,217, 1, 90,214, 81, 86,108, 77, + 139, 13,154,102,251,204,176, 45,116, 18, 43, 32,240,177,132,153, + 223, 76,203,194, 52,126,118, 5,109,183,169, 49,209, 23, 4,215, + 20, 88, 58, 97,222, 27, 17, 28, 50, 15,156, 22, 83, 24,242, 34, + 254, 68,207,178,195,181,122,145, 36, 8,232,168, 96,252,105, 80, + 170,208,160,125,161,137, 98,151, 84, 91, 30,149,224,255,100,210, + 16,196, 0, 72,163,247,117,219,138, 3,230,218, 9, 63,221,148, + 135, 92,131, 2,205, 74,144, 51,115,103,246,243,157,127,191,226, + 82,155,216, 38,200, 55,198, 59,129,150,111, 75, 19,190, 99, 46, + 233,121,167,140,159,110,188,142, 41,245,249,182, 47,253,180, 89, + 120,152, 6,106,231, 70,113,186,212, 37,171, 66,136,162,141,250, + 114, 7,185, 85,248,238,172, 10, 54, 73, 42,104, 60, 56,241,164, + 64, 40,211,123,187,201, 67,193, 21,227,173,244,119,199,128,158 +}; + +#define SBOX1(n) FSb[(n)] +#define SBOX2(n) (unsigned char)((FSb[(n)] >> 7 ^ FSb[(n)] << 1) & 0xff) +#define SBOX3(n) (unsigned char)((FSb[(n)] >> 1 ^ FSb[(n)] << 7) & 0xff) +#define SBOX4(n) FSb[((n) << 1 ^ (n) >> 7) &0xff] + +#else /* MBEDTLS_CAMELLIA_SMALL_MEMORY */ + +static const unsigned char FSb[256] = +{ + 112, 130, 44, 236, 179, 39, 192, 229, 228, 133, 87, 53, 234, 12, 174, 65, + 35, 239, 107, 147, 69, 25, 165, 33, 237, 14, 79, 78, 29, 101, 146, 189, + 134, 184, 175, 143, 124, 235, 31, 206, 62, 48, 220, 95, 94, 197, 11, 26, + 166, 225, 57, 202, 213, 71, 93, 61, 217, 1, 90, 214, 81, 86, 108, 77, + 139, 13, 154, 102, 251, 204, 176, 45, 116, 18, 43, 32, 240, 177, 132, 153, + 223, 76, 203, 194, 52, 126, 118, 5, 109, 183, 169, 49, 209, 23, 4, 215, + 20, 88, 58, 97, 222, 27, 17, 28, 50, 15, 156, 22, 83, 24, 242, 34, + 254, 68, 207, 178, 195, 181, 122, 145, 36, 8, 232, 168, 96, 252, 105, 80, + 170, 208, 160, 125, 161, 137, 98, 151, 84, 91, 30, 149, 224, 255, 100, 210, + 16, 196, 0, 72, 163, 247, 117, 219, 138, 3, 230, 218, 9, 63, 221, 148, + 135, 92, 131, 2, 205, 74, 144, 51, 115, 103, 246, 243, 157, 127, 191, 226, + 82, 155, 216, 38, 200, 55, 198, 59, 129, 150, 111, 75, 19, 190, 99, 46, + 233, 121, 167, 140, 159, 110, 188, 142, 41, 245, 249, 182, 47, 253, 180, 89, + 120, 152, 6, 106, 231, 70, 113, 186, 212, 37, 171, 66, 136, 162, 141, 250, + 114, 7, 185, 85, 248, 238, 172, 10, 54, 73, 42, 104, 60, 56, 241, 164, + 64, 40, 211, 123, 187, 201, 67, 193, 21, 227, 173, 244, 119, 199, 128, 158 +}; + +static const unsigned char FSb2[256] = +{ + 224, 5, 88, 217, 103, 78, 129, 203, 201, 11, 174, 106, 213, 24, 93, 130, + 70, 223, 214, 39, 138, 50, 75, 66, 219, 28, 158, 156, 58, 202, 37, 123, + 13, 113, 95, 31, 248, 215, 62, 157, 124, 96, 185, 190, 188, 139, 22, 52, + 77, 195, 114, 149, 171, 142, 186, 122, 179, 2, 180, 173, 162, 172, 216, 154, + 23, 26, 53, 204, 247, 153, 97, 90, 232, 36, 86, 64, 225, 99, 9, 51, + 191, 152, 151, 133, 104, 252, 236, 10, 218, 111, 83, 98, 163, 46, 8, 175, + 40, 176, 116, 194, 189, 54, 34, 56, 100, 30, 57, 44, 166, 48, 229, 68, + 253, 136, 159, 101, 135, 107, 244, 35, 72, 16, 209, 81, 192, 249, 210, 160, + 85, 161, 65, 250, 67, 19, 196, 47, 168, 182, 60, 43, 193, 255, 200, 165, + 32, 137, 0, 144, 71, 239, 234, 183, 21, 6, 205, 181, 18, 126, 187, 41, + 15, 184, 7, 4, 155, 148, 33, 102, 230, 206, 237, 231, 59, 254, 127, 197, + 164, 55, 177, 76, 145, 110, 141, 118, 3, 45, 222, 150, 38, 125, 198, 92, + 211, 242, 79, 25, 63, 220, 121, 29, 82, 235, 243, 109, 94, 251, 105, 178, + 240, 49, 12, 212, 207, 140, 226, 117, 169, 74, 87, 132, 17, 69, 27, 245, + 228, 14, 115, 170, 241, 221, 89, 20, 108, 146, 84, 208, 120, 112, 227, 73, + 128, 80, 167, 246, 119, 147, 134, 131, 42, 199, 91, 233, 238, 143, 1, 61 +}; + +static const unsigned char FSb3[256] = +{ + 56, 65, 22, 118, 217, 147, 96, 242, 114, 194, 171, 154, 117, 6, 87, 160, + 145, 247, 181, 201, 162, 140, 210, 144, 246, 7, 167, 39, 142, 178, 73, 222, + 67, 92, 215, 199, 62, 245, 143, 103, 31, 24, 110, 175, 47, 226, 133, 13, + 83, 240, 156, 101, 234, 163, 174, 158, 236, 128, 45, 107, 168, 43, 54, 166, + 197, 134, 77, 51, 253, 102, 88, 150, 58, 9, 149, 16, 120, 216, 66, 204, + 239, 38, 229, 97, 26, 63, 59, 130, 182, 219, 212, 152, 232, 139, 2, 235, + 10, 44, 29, 176, 111, 141, 136, 14, 25, 135, 78, 11, 169, 12, 121, 17, + 127, 34, 231, 89, 225, 218, 61, 200, 18, 4, 116, 84, 48, 126, 180, 40, + 85, 104, 80, 190, 208, 196, 49, 203, 42, 173, 15, 202, 112, 255, 50, 105, + 8, 98, 0, 36, 209, 251, 186, 237, 69, 129, 115, 109, 132, 159, 238, 74, + 195, 46, 193, 1, 230, 37, 72, 153, 185, 179, 123, 249, 206, 191, 223, 113, + 41, 205, 108, 19, 100, 155, 99, 157, 192, 75, 183, 165, 137, 95, 177, 23, + 244, 188, 211, 70, 207, 55, 94, 71, 148, 250, 252, 91, 151, 254, 90, 172, + 60, 76, 3, 53, 243, 35, 184, 93, 106, 146, 213, 33, 68, 81, 198, 125, + 57, 131, 220, 170, 124, 119, 86, 5, 27, 164, 21, 52, 30, 28, 248, 82, + 32, 20, 233, 189, 221, 228, 161, 224, 138, 241, 214, 122, 187, 227, 64, 79 +}; + +static const unsigned char FSb4[256] = +{ + 112, 44, 179, 192, 228, 87, 234, 174, 35, 107, 69, 165, 237, 79, 29, 146, + 134, 175, 124, 31, 62, 220, 94, 11, 166, 57, 213, 93, 217, 90, 81, 108, + 139, 154, 251, 176, 116, 43, 240, 132, 223, 203, 52, 118, 109, 169, 209, 4, + 20, 58, 222, 17, 50, 156, 83, 242, 254, 207, 195, 122, 36, 232, 96, 105, + 170, 160, 161, 98, 84, 30, 224, 100, 16, 0, 163, 117, 138, 230, 9, 221, + 135, 131, 205, 144, 115, 246, 157, 191, 82, 216, 200, 198, 129, 111, 19, 99, + 233, 167, 159, 188, 41, 249, 47, 180, 120, 6, 231, 113, 212, 171, 136, 141, + 114, 185, 248, 172, 54, 42, 60, 241, 64, 211, 187, 67, 21, 173, 119, 128, + 130, 236, 39, 229, 133, 53, 12, 65, 239, 147, 25, 33, 14, 78, 101, 189, + 184, 143, 235, 206, 48, 95, 197, 26, 225, 202, 71, 61, 1, 214, 86, 77, + 13, 102, 204, 45, 18, 32, 177, 153, 76, 194, 126, 5, 183, 49, 23, 215, + 88, 97, 27, 28, 15, 22, 24, 34, 68, 178, 181, 145, 8, 168, 252, 80, + 208, 125, 137, 151, 91, 149, 255, 210, 196, 72, 247, 219, 3, 218, 63, 148, + 92, 2, 74, 51, 103, 243, 127, 226, 155, 38, 55, 59, 150, 75, 190, 46, + 121, 140, 110, 142, 245, 182, 253, 89, 152, 106, 70, 186, 37, 66, 162, 250, + 7, 85, 238, 10, 73, 104, 56, 164, 40, 123, 201, 193, 227, 244, 199, 158 +}; + +#define SBOX1(n) FSb[(n)] +#define SBOX2(n) FSb2[(n)] +#define SBOX3(n) FSb3[(n)] +#define SBOX4(n) FSb4[(n)] + +#endif /* MBEDTLS_CAMELLIA_SMALL_MEMORY */ + +static const unsigned char shifts[2][4][4] = +{ + { + { 1, 1, 1, 1 }, /* KL */ + { 0, 0, 0, 0 }, /* KR */ + { 1, 1, 1, 1 }, /* KA */ + { 0, 0, 0, 0 } /* KB */ + }, + { + { 1, 0, 1, 1 }, /* KL */ + { 1, 1, 0, 1 }, /* KR */ + { 1, 1, 1, 0 }, /* KA */ + { 1, 1, 0, 1 } /* KB */ + } +}; + +static const signed char indexes[2][4][20] = +{ + { + { 0, 1, 2, 3, 8, 9, 10, 11, 38, 39, + 36, 37, 23, 20, 21, 22, 27, -1, -1, 26 }, /* KL -> RK */ + { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, /* KR -> RK */ + { 4, 5, 6, 7, 12, 13, 14, 15, 16, 17, + 18, 19, -1, 24, 25, -1, 31, 28, 29, 30 }, /* KA -> RK */ + { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } /* KB -> RK */ + }, + { + { 0, 1, 2, 3, 61, 62, 63, 60, -1, -1, + -1, -1, 27, 24, 25, 26, 35, 32, 33, 34 }, /* KL -> RK */ + { -1, -1, -1, -1, 8, 9, 10, 11, 16, 17, + 18, 19, -1, -1, -1, -1, 39, 36, 37, 38 }, /* KR -> RK */ + { -1, -1, -1, -1, 12, 13, 14, 15, 58, 59, + 56, 57, 31, 28, 29, 30, -1, -1, -1, -1 }, /* KA -> RK */ + { 4, 5, 6, 7, 65, 66, 67, 64, 20, 21, + 22, 23, -1, -1, -1, -1, 43, 40, 41, 42 } /* KB -> RK */ + } +}; + +static const signed char transposes[2][20] = +{ + { + 21, 22, 23, 20, + -1, -1, -1, -1, + 18, 19, 16, 17, + 11, 8, 9, 10, + 15, 12, 13, 14 + }, + { + 25, 26, 27, 24, + 29, 30, 31, 28, + 18, 19, 16, 17, + -1, -1, -1, -1, + -1, -1, -1, -1 + } +}; + +/* Shift macro for 128 bit strings with rotation smaller than 32 bits (!) */ +#define ROTL(DEST, SRC, SHIFT) \ +{ \ + (DEST)[0] = (SRC)[0] << (SHIFT) ^ (SRC)[1] >> (32 - (SHIFT)); \ + (DEST)[1] = (SRC)[1] << (SHIFT) ^ (SRC)[2] >> (32 - (SHIFT)); \ + (DEST)[2] = (SRC)[2] << (SHIFT) ^ (SRC)[3] >> (32 - (SHIFT)); \ + (DEST)[3] = (SRC)[3] << (SHIFT) ^ (SRC)[0] >> (32 - (SHIFT)); \ +} + +#define FL(XL, XR, KL, KR) \ +{ \ + (XR) = ((((XL) & (KL)) << 1) | (((XL) & (KL)) >> 31)) ^ (XR); \ + (XL) = ((XR) | (KR)) ^ (XL); \ +} + +#define FLInv(YL, YR, KL, KR) \ +{ \ + (YL) = ((YR) | (KR)) ^ (YL); \ + (YR) = ((((YL) & (KL)) << 1) | (((YL) & (KL)) >> 31)) ^ (YR); \ +} + +#define SHIFT_AND_PLACE(INDEX, OFFSET) \ +{ \ + TK[0] = KC[(OFFSET) * 4 + 0]; \ + TK[1] = KC[(OFFSET) * 4 + 1]; \ + TK[2] = KC[(OFFSET) * 4 + 2]; \ + TK[3] = KC[(OFFSET) * 4 + 3]; \ + \ + for( i = 1; i <= 4; i++ ) \ + if( shifts[(INDEX)][(OFFSET)][i -1] ) \ + ROTL(TK + i * 4, TK, ( 15 * i ) % 32); \ + \ + for( i = 0; i < 20; i++ ) \ + if( indexes[(INDEX)][(OFFSET)][i] != -1 ) { \ + RK[indexes[(INDEX)][(OFFSET)][i]] = TK[ i ]; \ + } \ +} + +static void camellia_feistel( const uint32_t x[2], const uint32_t k[2], + uint32_t z[2]) +{ + uint32_t I0, I1; + I0 = x[0] ^ k[0]; + I1 = x[1] ^ k[1]; + + I0 = ((uint32_t) SBOX1((I0 >> 24) & 0xFF) << 24) | + ((uint32_t) SBOX2((I0 >> 16) & 0xFF) << 16) | + ((uint32_t) SBOX3((I0 >> 8) & 0xFF) << 8) | + ((uint32_t) SBOX4((I0 ) & 0xFF) ); + I1 = ((uint32_t) SBOX2((I1 >> 24) & 0xFF) << 24) | + ((uint32_t) SBOX3((I1 >> 16) & 0xFF) << 16) | + ((uint32_t) SBOX4((I1 >> 8) & 0xFF) << 8) | + ((uint32_t) SBOX1((I1 ) & 0xFF) ); + + I0 ^= (I1 << 8) | (I1 >> 24); + I1 ^= (I0 << 16) | (I0 >> 16); + I0 ^= (I1 >> 8) | (I1 << 24); + I1 ^= (I0 >> 8) | (I0 << 24); + + z[0] ^= I1; + z[1] ^= I0; +} + +void mbedtls_camellia_init( mbedtls_camellia_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_camellia_context ) ); +} + +void mbedtls_camellia_free( mbedtls_camellia_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_camellia_context ) ); +} + +/* + * Camellia key schedule (encryption) + */ +int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx, const unsigned char *key, + unsigned int keybits ) +{ + int idx; + size_t i; + uint32_t *RK; + unsigned char t[64]; + uint32_t SIGMA[6][2]; + uint32_t KC[16]; + uint32_t TK[20]; + + RK = ctx->rk; + + memset( t, 0, 64 ); + memset( RK, 0, sizeof(ctx->rk) ); + + switch( keybits ) + { + case 128: ctx->nr = 3; idx = 0; break; + case 192: + case 256: ctx->nr = 4; idx = 1; break; + default : return( MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH ); + } + + for( i = 0; i < keybits / 8; ++i ) + t[i] = key[i]; + + if( keybits == 192 ) { + for( i = 0; i < 8; i++ ) + t[24 + i] = ~t[16 + i]; + } + + /* + * Prepare SIGMA values + */ + for( i = 0; i < 6; i++ ) { + GET_UINT32_BE( SIGMA[i][0], SIGMA_CHARS[i], 0 ); + GET_UINT32_BE( SIGMA[i][1], SIGMA_CHARS[i], 4 ); + } + + /* + * Key storage in KC + * Order: KL, KR, KA, KB + */ + memset( KC, 0, sizeof(KC) ); + + /* Store KL, KR */ + for( i = 0; i < 8; i++ ) + GET_UINT32_BE( KC[i], t, i * 4 ); + + /* Generate KA */ + for( i = 0; i < 4; ++i ) + KC[8 + i] = KC[i] ^ KC[4 + i]; + + camellia_feistel( KC + 8, SIGMA[0], KC + 10 ); + camellia_feistel( KC + 10, SIGMA[1], KC + 8 ); + + for( i = 0; i < 4; ++i ) + KC[8 + i] ^= KC[i]; + + camellia_feistel( KC + 8, SIGMA[2], KC + 10 ); + camellia_feistel( KC + 10, SIGMA[3], KC + 8 ); + + if( keybits > 128 ) { + /* Generate KB */ + for( i = 0; i < 4; ++i ) + KC[12 + i] = KC[4 + i] ^ KC[8 + i]; + + camellia_feistel( KC + 12, SIGMA[4], KC + 14 ); + camellia_feistel( KC + 14, SIGMA[5], KC + 12 ); + } + + /* + * Generating subkeys + */ + + /* Manipulating KL */ + SHIFT_AND_PLACE( idx, 0 ); + + /* Manipulating KR */ + if( keybits > 128 ) { + SHIFT_AND_PLACE( idx, 1 ); + } + + /* Manipulating KA */ + SHIFT_AND_PLACE( idx, 2 ); + + /* Manipulating KB */ + if( keybits > 128 ) { + SHIFT_AND_PLACE( idx, 3 ); + } + + /* Do transpositions */ + for( i = 0; i < 20; i++ ) { + if( transposes[idx][i] != -1 ) { + RK[32 + 12 * idx + i] = RK[transposes[idx][i]]; + } + } + + return( 0 ); +} + +/* + * Camellia key schedule (decryption) + */ +int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx, const unsigned char *key, + unsigned int keybits ) +{ + int idx, ret; + size_t i; + mbedtls_camellia_context cty; + uint32_t *RK; + uint32_t *SK; + + mbedtls_camellia_init( &cty ); + + /* Also checks keybits */ + if( ( ret = mbedtls_camellia_setkey_enc( &cty, key, keybits ) ) != 0 ) + goto exit; + + ctx->nr = cty.nr; + idx = ( ctx->nr == 4 ); + + RK = ctx->rk; + SK = cty.rk + 24 * 2 + 8 * idx * 2; + + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + + for( i = 22 + 8 * idx, SK -= 6; i > 0; i--, SK -= 4 ) + { + *RK++ = *SK++; + *RK++ = *SK++; + } + + SK -= 2; + + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + *RK++ = *SK++; + +exit: + mbedtls_camellia_free( &cty ); + + return( ret ); +} + +/* + * Camellia-ECB block encryption/decryption + */ +int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ) +{ + int NR; + uint32_t *RK, X[4]; + + ( (void) mode ); + + NR = ctx->nr; + RK = ctx->rk; + + GET_UINT32_BE( X[0], input, 0 ); + GET_UINT32_BE( X[1], input, 4 ); + GET_UINT32_BE( X[2], input, 8 ); + GET_UINT32_BE( X[3], input, 12 ); + + X[0] ^= *RK++; + X[1] ^= *RK++; + X[2] ^= *RK++; + X[3] ^= *RK++; + + while( NR ) { + --NR; + camellia_feistel( X, RK, X + 2 ); + RK += 2; + camellia_feistel( X + 2, RK, X ); + RK += 2; + camellia_feistel( X, RK, X + 2 ); + RK += 2; + camellia_feistel( X + 2, RK, X ); + RK += 2; + camellia_feistel( X, RK, X + 2 ); + RK += 2; + camellia_feistel( X + 2, RK, X ); + RK += 2; + + if( NR ) { + FL(X[0], X[1], RK[0], RK[1]); + RK += 2; + FLInv(X[2], X[3], RK[0], RK[1]); + RK += 2; + } + } + + X[2] ^= *RK++; + X[3] ^= *RK++; + X[0] ^= *RK++; + X[1] ^= *RK++; + + PUT_UINT32_BE( X[2], output, 0 ); + PUT_UINT32_BE( X[3], output, 4 ); + PUT_UINT32_BE( X[0], output, 8 ); + PUT_UINT32_BE( X[1], output, 12 ); + + return( 0 ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/* + * Camellia-CBC buffer encryption/decryption + */ +int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ) +{ + int i; + unsigned char temp[16]; + + if( length % 16 ) + return( MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH ); + + if( mode == MBEDTLS_CAMELLIA_DECRYPT ) + { + while( length > 0 ) + { + memcpy( temp, input, 16 ); + mbedtls_camellia_crypt_ecb( ctx, mode, input, output ); + + for( i = 0; i < 16; i++ ) + output[i] = (unsigned char)( output[i] ^ iv[i] ); + + memcpy( iv, temp, 16 ); + + input += 16; + output += 16; + length -= 16; + } + } + else + { + while( length > 0 ) + { + for( i = 0; i < 16; i++ ) + output[i] = (unsigned char)( input[i] ^ iv[i] ); + + mbedtls_camellia_crypt_ecb( ctx, mode, output, output ); + memcpy( iv, output, 16 ); + + input += 16; + output += 16; + length -= 16; + } + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/* + * Camellia-CFB128 buffer encryption/decryption + */ +int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ) +{ + int c; + size_t n = *iv_off; + + if( mode == MBEDTLS_CAMELLIA_DECRYPT ) + { + while( length-- ) + { + if( n == 0 ) + mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, iv, iv ); + + c = *input++; + *output++ = (unsigned char)( c ^ iv[n] ); + iv[n] = (unsigned char) c; + + n = ( n + 1 ) & 0x0F; + } + } + else + { + while( length-- ) + { + if( n == 0 ) + mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, iv, iv ); + + iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ ); + + n = ( n + 1 ) & 0x0F; + } + } + + *iv_off = n; + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/* + * Camellia-CTR buffer encryption/decryption + */ +int mbedtls_camellia_crypt_ctr( mbedtls_camellia_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[16], + unsigned char stream_block[16], + const unsigned char *input, + unsigned char *output ) +{ + int c, i; + size_t n = *nc_off; + + while( length-- ) + { + if( n == 0 ) { + mbedtls_camellia_crypt_ecb( ctx, MBEDTLS_CAMELLIA_ENCRYPT, nonce_counter, + stream_block ); + + for( i = 16; i > 0; i-- ) + if( ++nonce_counter[i - 1] != 0 ) + break; + } + c = *input++; + *output++ = (unsigned char)( c ^ stream_block[n] ); + + n = ( n + 1 ) & 0x0F; + } + + *nc_off = n; + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CTR */ +#endif /* !MBEDTLS_CAMELLIA_ALT */ + +#if defined(MBEDTLS_SELF_TEST) + +/* + * Camellia test vectors from: + * + * http://info.isl.ntt.co.jp/crypt/eng/camellia/technology.html: + * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/intermediate.txt + * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/t_camellia.txt + * (For each bitlength: Key 0, Nr 39) + */ +#define CAMELLIA_TESTS_ECB 2 + +static const unsigned char camellia_test_ecb_key[3][CAMELLIA_TESTS_ECB][32] = +{ + { + { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, + 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } + }, + { + { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, + 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, + 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } + }, + { + { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, + 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, + 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, + 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } + }, +}; + +static const unsigned char camellia_test_ecb_plain[CAMELLIA_TESTS_ECB][16] = +{ + { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, + 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 }, + { 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } +}; + +static const unsigned char camellia_test_ecb_cipher[3][CAMELLIA_TESTS_ECB][16] = +{ + { + { 0x67, 0x67, 0x31, 0x38, 0x54, 0x96, 0x69, 0x73, + 0x08, 0x57, 0x06, 0x56, 0x48, 0xea, 0xbe, 0x43 }, + { 0x38, 0x3C, 0x6C, 0x2A, 0xAB, 0xEF, 0x7F, 0xDE, + 0x25, 0xCD, 0x47, 0x0B, 0xF7, 0x74, 0xA3, 0x31 } + }, + { + { 0xb4, 0x99, 0x34, 0x01, 0xb3, 0xe9, 0x96, 0xf8, + 0x4e, 0xe5, 0xce, 0xe7, 0xd7, 0x9b, 0x09, 0xb9 }, + { 0xD1, 0x76, 0x3F, 0xC0, 0x19, 0xD7, 0x7C, 0xC9, + 0x30, 0xBF, 0xF2, 0xA5, 0x6F, 0x7C, 0x93, 0x64 } + }, + { + { 0x9a, 0xcc, 0x23, 0x7d, 0xff, 0x16, 0xd7, 0x6c, + 0x20, 0xef, 0x7c, 0x91, 0x9e, 0x3a, 0x75, 0x09 }, + { 0x05, 0x03, 0xFB, 0x10, 0xAB, 0x24, 0x1E, 0x7C, + 0xF4, 0x5D, 0x8C, 0xDE, 0xEE, 0x47, 0x43, 0x35 } + } +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#define CAMELLIA_TESTS_CBC 3 + +static const unsigned char camellia_test_cbc_key[3][32] = +{ + { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, + 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C } + , + { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52, + 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5, + 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B } + , + { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE, + 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81, + 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7, + 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 } +}; + +static const unsigned char camellia_test_cbc_iv[16] = + + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F } +; + +static const unsigned char camellia_test_cbc_plain[CAMELLIA_TESTS_CBC][16] = +{ + { 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96, + 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A }, + { 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C, + 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51 }, + { 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11, + 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF } + +}; + +static const unsigned char camellia_test_cbc_cipher[3][CAMELLIA_TESTS_CBC][16] = +{ + { + { 0x16, 0x07, 0xCF, 0x49, 0x4B, 0x36, 0xBB, 0xF0, + 0x0D, 0xAE, 0xB0, 0xB5, 0x03, 0xC8, 0x31, 0xAB }, + { 0xA2, 0xF2, 0xCF, 0x67, 0x16, 0x29, 0xEF, 0x78, + 0x40, 0xC5, 0xA5, 0xDF, 0xB5, 0x07, 0x48, 0x87 }, + { 0x0F, 0x06, 0x16, 0x50, 0x08, 0xCF, 0x8B, 0x8B, + 0x5A, 0x63, 0x58, 0x63, 0x62, 0x54, 0x3E, 0x54 } + }, + { + { 0x2A, 0x48, 0x30, 0xAB, 0x5A, 0xC4, 0xA1, 0xA2, + 0x40, 0x59, 0x55, 0xFD, 0x21, 0x95, 0xCF, 0x93 }, + { 0x5D, 0x5A, 0x86, 0x9B, 0xD1, 0x4C, 0xE5, 0x42, + 0x64, 0xF8, 0x92, 0xA6, 0xDD, 0x2E, 0xC3, 0xD5 }, + { 0x37, 0xD3, 0x59, 0xC3, 0x34, 0x98, 0x36, 0xD8, + 0x84, 0xE3, 0x10, 0xAD, 0xDF, 0x68, 0xC4, 0x49 } + }, + { + { 0xE6, 0xCF, 0xA3, 0x5F, 0xC0, 0x2B, 0x13, 0x4A, + 0x4D, 0x2C, 0x0B, 0x67, 0x37, 0xAC, 0x3E, 0xDA }, + { 0x36, 0xCB, 0xEB, 0x73, 0xBD, 0x50, 0x4B, 0x40, + 0x70, 0xB1, 0xB7, 0xDE, 0x2B, 0x21, 0xEB, 0x50 }, + { 0xE3, 0x1A, 0x60, 0x55, 0x29, 0x7D, 0x96, 0xCA, + 0x33, 0x30, 0xCD, 0xF1, 0xB1, 0x86, 0x0A, 0x83 } + } +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/* + * Camellia-CTR test vectors from: + * + * http://www.faqs.org/rfcs/rfc5528.html + */ + +static const unsigned char camellia_test_ctr_key[3][16] = +{ + { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC, + 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E }, + { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7, + 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 }, + { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8, + 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC } +}; + +static const unsigned char camellia_test_ctr_nonce_counter[3][16] = +{ + { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, + { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59, + 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 }, + { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F, + 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 } +}; + +static const unsigned char camellia_test_ctr_pt[3][48] = +{ + { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62, + 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 }, + + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F }, + + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, + 0x20, 0x21, 0x22, 0x23 } +}; + +static const unsigned char camellia_test_ctr_ct[3][48] = +{ + { 0xD0, 0x9D, 0xC2, 0x9A, 0x82, 0x14, 0x61, 0x9A, + 0x20, 0x87, 0x7C, 0x76, 0xDB, 0x1F, 0x0B, 0x3F }, + { 0xDB, 0xF3, 0xC7, 0x8D, 0xC0, 0x83, 0x96, 0xD4, + 0xDA, 0x7C, 0x90, 0x77, 0x65, 0xBB, 0xCB, 0x44, + 0x2B, 0x8E, 0x8E, 0x0F, 0x31, 0xF0, 0xDC, 0xA7, + 0x2C, 0x74, 0x17, 0xE3, 0x53, 0x60, 0xE0, 0x48 }, + { 0xB1, 0x9D, 0x1F, 0xCD, 0xCB, 0x75, 0xEB, 0x88, + 0x2F, 0x84, 0x9C, 0xE2, 0x4D, 0x85, 0xCF, 0x73, + 0x9C, 0xE6, 0x4B, 0x2B, 0x5C, 0x9D, 0x73, 0xF1, + 0x4F, 0x2D, 0x5D, 0x9D, 0xCE, 0x98, 0x89, 0xCD, + 0xDF, 0x50, 0x86, 0x96 } +}; + +static const int camellia_test_ctr_len[3] = + { 16, 32, 36 }; +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +/* + * Checkup routine + */ +int mbedtls_camellia_self_test( int verbose ) +{ + int i, j, u, v; + unsigned char key[32]; + unsigned char buf[64]; + unsigned char src[16]; + unsigned char dst[16]; +#if defined(MBEDTLS_CIPHER_MODE_CBC) + unsigned char iv[16]; +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + size_t offset, len; + unsigned char nonce_counter[16]; + unsigned char stream_block[16]; +#endif + + mbedtls_camellia_context ctx; + + memset( key, 0, 32 ); + + for( j = 0; j < 6; j++ ) { + u = j >> 1; + v = j & 1; + + if( verbose != 0 ) + mbedtls_printf( " CAMELLIA-ECB-%3d (%s): ", 128 + u * 64, + (v == MBEDTLS_CAMELLIA_DECRYPT) ? "dec" : "enc"); + + for( i = 0; i < CAMELLIA_TESTS_ECB; i++ ) { + memcpy( key, camellia_test_ecb_key[u][i], 16 + 8 * u ); + + if( v == MBEDTLS_CAMELLIA_DECRYPT ) { + mbedtls_camellia_setkey_dec( &ctx, key, 128 + u * 64 ); + memcpy( src, camellia_test_ecb_cipher[u][i], 16 ); + memcpy( dst, camellia_test_ecb_plain[i], 16 ); + } else { /* MBEDTLS_CAMELLIA_ENCRYPT */ + mbedtls_camellia_setkey_enc( &ctx, key, 128 + u * 64 ); + memcpy( src, camellia_test_ecb_plain[i], 16 ); + memcpy( dst, camellia_test_ecb_cipher[u][i], 16 ); + } + + mbedtls_camellia_crypt_ecb( &ctx, v, src, buf ); + + if( memcmp( buf, dst, 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + /* + * CBC mode + */ + for( j = 0; j < 6; j++ ) + { + u = j >> 1; + v = j & 1; + + if( verbose != 0 ) + mbedtls_printf( " CAMELLIA-CBC-%3d (%s): ", 128 + u * 64, + ( v == MBEDTLS_CAMELLIA_DECRYPT ) ? "dec" : "enc" ); + + memcpy( src, camellia_test_cbc_iv, 16 ); + memcpy( dst, camellia_test_cbc_iv, 16 ); + memcpy( key, camellia_test_cbc_key[u], 16 + 8 * u ); + + if( v == MBEDTLS_CAMELLIA_DECRYPT ) { + mbedtls_camellia_setkey_dec( &ctx, key, 128 + u * 64 ); + } else { + mbedtls_camellia_setkey_enc( &ctx, key, 128 + u * 64 ); + } + + for( i = 0; i < CAMELLIA_TESTS_CBC; i++ ) { + + if( v == MBEDTLS_CAMELLIA_DECRYPT ) { + memcpy( iv , src, 16 ); + memcpy( src, camellia_test_cbc_cipher[u][i], 16 ); + memcpy( dst, camellia_test_cbc_plain[i], 16 ); + } else { /* MBEDTLS_CAMELLIA_ENCRYPT */ + memcpy( iv , dst, 16 ); + memcpy( src, camellia_test_cbc_plain[i], 16 ); + memcpy( dst, camellia_test_cbc_cipher[u][i], 16 ); + } + + mbedtls_camellia_crypt_cbc( &ctx, v, 16, iv, src, buf ); + + if( memcmp( buf, dst, 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +#if defined(MBEDTLS_CIPHER_MODE_CTR) + /* + * CTR mode + */ + for( i = 0; i < 6; i++ ) + { + u = i >> 1; + v = i & 1; + + if( verbose != 0 ) + mbedtls_printf( " CAMELLIA-CTR-128 (%s): ", + ( v == MBEDTLS_CAMELLIA_DECRYPT ) ? "dec" : "enc" ); + + memcpy( nonce_counter, camellia_test_ctr_nonce_counter[u], 16 ); + memcpy( key, camellia_test_ctr_key[u], 16 ); + + offset = 0; + mbedtls_camellia_setkey_enc( &ctx, key, 128 ); + + if( v == MBEDTLS_CAMELLIA_DECRYPT ) + { + len = camellia_test_ctr_len[u]; + memcpy( buf, camellia_test_ctr_ct[u], len ); + + mbedtls_camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, + buf, buf ); + + if( memcmp( buf, camellia_test_ctr_pt[u], len ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + else + { + len = camellia_test_ctr_len[u]; + memcpy( buf, camellia_test_ctr_pt[u], len ); + + mbedtls_camellia_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, + buf, buf ); + + if( memcmp( buf, camellia_test_ctr_ct[u], len ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_CAMELLIA_C */ diff --git a/mbedtls/ccm.c b/mbedtls/ccm.c new file mode 100644 index 0000000..13a8fd1 --- /dev/null +++ b/mbedtls/ccm.c @@ -0,0 +1,464 @@ +/* + * NIST SP800-38C compliant CCM implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * Definition of CCM: + * http://csrc.nist.gov/publications/nistpubs/800-38C/SP800-38C_updated-July20_2007.pdf + * RFC 3610 "Counter with CBC-MAC (CCM)" + * + * Related: + * RFC 5116 "An Interface and Algorithms for Authenticated Encryption" + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CCM_C) + +#include "mbedtls/ccm.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +#define CCM_ENCRYPT 0 +#define CCM_DECRYPT 1 + +/* + * Initialize context + */ +void mbedtls_ccm_init( mbedtls_ccm_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_ccm_context ) ); +} + +int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx, + mbedtls_cipher_id_t cipher, + const unsigned char *key, + unsigned int keybits ) +{ + int ret; + const mbedtls_cipher_info_t *cipher_info; + + cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB ); + if( cipher_info == NULL ) + return( MBEDTLS_ERR_CCM_BAD_INPUT ); + + if( cipher_info->block_size != 16 ) + return( MBEDTLS_ERR_CCM_BAD_INPUT ); + + mbedtls_cipher_free( &ctx->cipher_ctx ); + + if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits, + MBEDTLS_ENCRYPT ) ) != 0 ) + { + return( ret ); + } + + return( 0 ); +} + +/* + * Free context + */ +void mbedtls_ccm_free( mbedtls_ccm_context *ctx ) +{ + mbedtls_cipher_free( &ctx->cipher_ctx ); + mbedtls_zeroize( ctx, sizeof( mbedtls_ccm_context ) ); +} + +/* + * Macros for common operations. + * Results in smaller compiled code than static inline functions. + */ + +/* + * Update the CBC-MAC state in y using a block in b + * (Always using b as the source helps the compiler optimise a bit better.) + */ +#define UPDATE_CBC_MAC \ + for( i = 0; i < 16; i++ ) \ + y[i] ^= b[i]; \ + \ + if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, y, 16, y, &olen ) ) != 0 ) \ + return( ret ); + +/* + * Encrypt or decrypt a partial block with CTR + * Warning: using b for temporary storage! src and dst must not be b! + * This avoids allocating one more 16 bytes buffer while allowing src == dst. + */ +#define CTR_CRYPT( dst, src, len ) \ + if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctr, 16, b, &olen ) ) != 0 ) \ + return( ret ); \ + \ + for( i = 0; i < len; i++ ) \ + dst[i] = src[i] ^ b[i]; + +/* + * Authenticated encryption or decryption + */ +static int ccm_auth_crypt( mbedtls_ccm_context *ctx, int mode, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *add, size_t add_len, + const unsigned char *input, unsigned char *output, + unsigned char *tag, size_t tag_len ) +{ + int ret; + unsigned char i; + unsigned char q; + size_t len_left, olen; + unsigned char b[16]; + unsigned char y[16]; + unsigned char ctr[16]; + const unsigned char *src; + unsigned char *dst; + + /* + * Check length requirements: SP800-38C A.1 + * Additional requirement: a < 2^16 - 2^8 to simplify the code. + * 'length' checked later (when writing it to the first block) + */ + if( tag_len < 4 || tag_len > 16 || tag_len % 2 != 0 ) + return( MBEDTLS_ERR_CCM_BAD_INPUT ); + + /* Also implies q is within bounds */ + if( iv_len < 7 || iv_len > 13 ) + return( MBEDTLS_ERR_CCM_BAD_INPUT ); + + if( add_len > 0xFF00 ) + return( MBEDTLS_ERR_CCM_BAD_INPUT ); + + q = 16 - 1 - (unsigned char) iv_len; + + /* + * First block B_0: + * 0 .. 0 flags + * 1 .. iv_len nonce (aka iv) + * iv_len+1 .. 15 length + * + * With flags as (bits): + * 7 0 + * 6 add present? + * 5 .. 3 (t - 2) / 2 + * 2 .. 0 q - 1 + */ + b[0] = 0; + b[0] |= ( add_len > 0 ) << 6; + b[0] |= ( ( tag_len - 2 ) / 2 ) << 3; + b[0] |= q - 1; + + memcpy( b + 1, iv, iv_len ); + + for( i = 0, len_left = length; i < q; i++, len_left >>= 8 ) + b[15-i] = (unsigned char)( len_left & 0xFF ); + + if( len_left > 0 ) + return( MBEDTLS_ERR_CCM_BAD_INPUT ); + + + /* Start CBC-MAC with first block */ + memset( y, 0, 16 ); + UPDATE_CBC_MAC; + + /* + * If there is additional data, update CBC-MAC with + * add_len, add, 0 (padding to a block boundary) + */ + if( add_len > 0 ) + { + size_t use_len; + len_left = add_len; + src = add; + + memset( b, 0, 16 ); + b[0] = (unsigned char)( ( add_len >> 8 ) & 0xFF ); + b[1] = (unsigned char)( ( add_len ) & 0xFF ); + + use_len = len_left < 16 - 2 ? len_left : 16 - 2; + memcpy( b + 2, src, use_len ); + len_left -= use_len; + src += use_len; + + UPDATE_CBC_MAC; + + while( len_left > 0 ) + { + use_len = len_left > 16 ? 16 : len_left; + + memset( b, 0, 16 ); + memcpy( b, src, use_len ); + UPDATE_CBC_MAC; + + len_left -= use_len; + src += use_len; + } + } + + /* + * Prepare counter block for encryption: + * 0 .. 0 flags + * 1 .. iv_len nonce (aka iv) + * iv_len+1 .. 15 counter (initially 1) + * + * With flags as (bits): + * 7 .. 3 0 + * 2 .. 0 q - 1 + */ + ctr[0] = q - 1; + memcpy( ctr + 1, iv, iv_len ); + memset( ctr + 1 + iv_len, 0, q ); + ctr[15] = 1; + + /* + * Authenticate and {en,de}crypt the message. + * + * The only difference between encryption and decryption is + * the respective order of authentication and {en,de}cryption. + */ + len_left = length; + src = input; + dst = output; + + while( len_left > 0 ) + { + size_t use_len = len_left > 16 ? 16 : len_left; + + if( mode == CCM_ENCRYPT ) + { + memset( b, 0, 16 ); + memcpy( b, src, use_len ); + UPDATE_CBC_MAC; + } + + CTR_CRYPT( dst, src, use_len ); + + if( mode == CCM_DECRYPT ) + { + memset( b, 0, 16 ); + memcpy( b, dst, use_len ); + UPDATE_CBC_MAC; + } + + dst += use_len; + src += use_len; + len_left -= use_len; + + /* + * Increment counter. + * No need to check for overflow thanks to the length check above. + */ + for( i = 0; i < q; i++ ) + if( ++ctr[15-i] != 0 ) + break; + } + + /* + * Authentication: reset counter and crypt/mask internal tag + */ + for( i = 0; i < q; i++ ) + ctr[15-i] = 0; + + CTR_CRYPT( y, y, 16 ); + memcpy( tag, y, tag_len ); + + return( 0 ); +} + +/* + * Authenticated encryption + */ +int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *add, size_t add_len, + const unsigned char *input, unsigned char *output, + unsigned char *tag, size_t tag_len ) +{ + return( ccm_auth_crypt( ctx, CCM_ENCRYPT, length, iv, iv_len, + add, add_len, input, output, tag, tag_len ) ); +} + +/* + * Authenticated decryption + */ +int mbedtls_ccm_auth_decrypt( mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *add, size_t add_len, + const unsigned char *input, unsigned char *output, + const unsigned char *tag, size_t tag_len ) +{ + int ret; + unsigned char check_tag[16]; + unsigned char i; + int diff; + + if( ( ret = ccm_auth_crypt( ctx, CCM_DECRYPT, length, + iv, iv_len, add, add_len, + input, output, check_tag, tag_len ) ) != 0 ) + { + return( ret ); + } + + /* Check tag in "constant-time" */ + for( diff = 0, i = 0; i < tag_len; i++ ) + diff |= tag[i] ^ check_tag[i]; + + if( diff != 0 ) + { + mbedtls_zeroize( output, length ); + return( MBEDTLS_ERR_CCM_AUTH_FAILED ); + } + + return( 0 ); +} + + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) +/* + * Examples 1 to 3 from SP800-38C Appendix C + */ + +#define NB_TESTS 3 + +/* + * The data is the same for all tests, only the used length changes + */ +static const unsigned char key[] = { + 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, + 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f +}; + +static const unsigned char iv[] = { + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b +}; + +static const unsigned char ad[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13 +}; + +static const unsigned char msg[] = { + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, +}; + +static const size_t iv_len [NB_TESTS] = { 7, 8, 12 }; +static const size_t add_len[NB_TESTS] = { 8, 16, 20 }; +static const size_t msg_len[NB_TESTS] = { 4, 16, 24 }; +static const size_t tag_len[NB_TESTS] = { 4, 6, 8 }; + +static const unsigned char res[NB_TESTS][32] = { + { 0x71, 0x62, 0x01, 0x5b, 0x4d, 0xac, 0x25, 0x5d }, + { 0xd2, 0xa1, 0xf0, 0xe0, 0x51, 0xea, 0x5f, 0x62, + 0x08, 0x1a, 0x77, 0x92, 0x07, 0x3d, 0x59, 0x3d, + 0x1f, 0xc6, 0x4f, 0xbf, 0xac, 0xcd }, + { 0xe3, 0xb2, 0x01, 0xa9, 0xf5, 0xb7, 0x1a, 0x7a, + 0x9b, 0x1c, 0xea, 0xec, 0xcd, 0x97, 0xe7, 0x0b, + 0x61, 0x76, 0xaa, 0xd9, 0xa4, 0x42, 0x8a, 0xa5, + 0x48, 0x43, 0x92, 0xfb, 0xc1, 0xb0, 0x99, 0x51 } +}; + +int mbedtls_ccm_self_test( int verbose ) +{ + mbedtls_ccm_context ctx; + unsigned char out[32]; + size_t i; + int ret; + + mbedtls_ccm_init( &ctx ); + + if( mbedtls_ccm_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, key, 8 * sizeof key ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( " CCM: setup failed" ); + + return( 1 ); + } + + for( i = 0; i < NB_TESTS; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " CCM-AES #%u: ", (unsigned int) i + 1 ); + + ret = mbedtls_ccm_encrypt_and_tag( &ctx, msg_len[i], + iv, iv_len[i], ad, add_len[i], + msg, out, + out + msg_len[i], tag_len[i] ); + + if( ret != 0 || + memcmp( out, res[i], msg_len[i] + tag_len[i] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + ret = mbedtls_ccm_auth_decrypt( &ctx, msg_len[i], + iv, iv_len[i], ad, add_len[i], + res[i], out, + res[i] + msg_len[i], tag_len[i] ); + + if( ret != 0 || + memcmp( out, msg, msg_len[i] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + mbedtls_ccm_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + +#endif /* MBEDTLS_CCM_C */ diff --git a/mbedtls/certs.c b/mbedtls/certs.c new file mode 100644 index 0000000..ffe6bc9 --- /dev/null +++ b/mbedtls/certs.c @@ -0,0 +1,351 @@ +/* + * X.509 test certificates + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include "mbedtls/certs.h" + +#if defined(MBEDTLS_CERTS_C) + +#if defined(MBEDTLS_ECDSA_C) +#define TEST_CA_CRT_EC \ +"-----BEGIN CERTIFICATE-----\r\n" \ +"MIICUjCCAdegAwIBAgIJAMFD4n5iQ8zoMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT\r\n" \ +"Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF\r\n" \ +"QyBDQTAeFw0xMzA5MjQxNTQ5NDhaFw0yMzA5MjIxNTQ5NDhaMD4xCzAJBgNVBAYT\r\n" \ +"Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF\r\n" \ +"QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu\r\n" \ +"ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy\r\n" \ +"aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqOBoDCBnTAdBgNVHQ4EFgQUnW0g\r\n" \ +"JEkBPyvLeLUZvH4kydv7NnwwbgYDVR0jBGcwZYAUnW0gJEkBPyvLeLUZvH4kydv7\r\n" \ +"NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UE\r\n" \ +"AxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w\r\n" \ +"CgYIKoZIzj0EAwIDaQAwZgIxAMO0YnNWKJUAfXgSJtJxexn4ipg+kv4znuR50v56\r\n" \ +"t4d0PCu412mUC6Nnd7izvtE2MgIxAP1nnJQjZ8BWukszFQDG48wxCCyci9qpdSMv\r\n" \ +"uCjn8pwUOkABXK8Mss90fzCfCEOtIA==\r\n" \ +"-----END CERTIFICATE-----\r\n" +const char mbedtls_test_ca_crt_ec[] = TEST_CA_CRT_EC; + +const char mbedtls_test_ca_key_ec[] = +"-----BEGIN EC PRIVATE KEY-----\r\n" +"Proc-Type: 4,ENCRYPTED\r\n" +"DEK-Info: DES-EDE3-CBC,307EAB469933D64E\r\n" +"\r\n" +"IxbrRmKcAzctJqPdTQLA4SWyBYYGYJVkYEna+F7Pa5t5Yg/gKADrFKcm6B72e7DG\r\n" +"ihExtZI648s0zdYw6qSJ74vrPSuWDe5qm93BqsfVH9svtCzWHW0pm1p0KTBCFfUq\r\n" +"UsuWTITwJImcnlAs1gaRZ3sAWm7cOUidL0fo2G0fYUFNcYoCSLffCFTEHBuPnagb\r\n" +"a77x/sY1Bvii8S9/XhDTb6pTMx06wzrm\r\n" +"-----END EC PRIVATE KEY-----\r\n"; + +const char mbedtls_test_ca_pwd_ec[] = "PolarSSLTest"; + +const char mbedtls_test_srv_crt_ec[] = +"-----BEGIN CERTIFICATE-----\r\n" +"MIICHzCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n" +"A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n" +"MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n" +"A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG\r\n" +"CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA\r\n" +"2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd\r\n" +"BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB\r\n" +"PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh\r\n" +"clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG\r\n" +"CCqGSM49BAMCA2gAMGUCMQCaLFzXptui5WQN8LlO3ddh1hMxx6tzgLvT03MTVK2S\r\n" +"C12r0Lz3ri/moSEpNZWqPjkCMCE2f53GXcYLqyfyJR078c/xNSUU5+Xxl7VZ414V\r\n" +"fGa5kHvHARBPc8YAIVIqDvHH1Q==\r\n" +"-----END CERTIFICATE-----\r\n"; + +const char mbedtls_test_srv_key_ec[] = +"-----BEGIN EC PRIVATE KEY-----\r\n" +"MHcCAQEEIPEqEyB2AnCoPL/9U/YDHvdqXYbIogTywwyp6/UfDw6noAoGCCqGSM49\r\n" +"AwEHoUQDQgAEN8xW2XYJHlpyPsdZLf8gbu58+QaRdNCtFLX3aCJZYpJO5QDYIxH/\r\n" +"6i/SNF1dFr2KiMJrdw1VzYoqDvoByLTt/w==\r\n" +"-----END EC PRIVATE KEY-----\r\n"; + +const char mbedtls_test_cli_crt_ec[] = +"-----BEGIN CERTIFICATE-----\r\n" +"MIICLDCCAbKgAwIBAgIBDTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n" +"A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n" +"MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjBBMQswCQYDVQQGEwJOTDERMA8G\r\n" +"A1UEChMIUG9sYXJTU0wxHzAdBgNVBAMTFlBvbGFyU1NMIFRlc3QgQ2xpZW50IDIw\r\n" +"WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARX5a6xc9/TrLuTuIH/Eq7u5lOszlVT\r\n" +"9jQOzC7jYyUL35ji81xgNpbA1RgUcOV/n9VLRRjlsGzVXPiWj4dwo+THo4GdMIGa\r\n" +"MAkGA1UdEwQCMAAwHQYDVR0OBBYEFHoAX4Zk/OBd5REQO7LmO8QmP8/iMG4GA1Ud\r\n" +"IwRnMGWAFJ1tICRJAT8ry3i1Gbx+JMnb+zZ8oUKkQDA+MQswCQYDVQQGEwJOTDER\r\n" +"MA8GA1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0GC\r\n" +"CQDBQ+J+YkPM6DAKBggqhkjOPQQDAgNoADBlAjBKZQ17IIOimbmoD/yN7o89u3BM\r\n" +"lgOsjnhw3fIOoLIWy2WOGsk/LGF++DzvrRzuNiACMQCd8iem1XS4JK7haj8xocpU\r\n" +"LwjQje5PDGHfd3h9tP38Qknu5bJqws0md2KOKHyeV0U=\r\n" +"-----END CERTIFICATE-----\r\n"; + +const char mbedtls_test_cli_key_ec[] = +"-----BEGIN EC PRIVATE KEY-----\r\n" +"MHcCAQEEIPb3hmTxZ3/mZI3vyk7p3U3wBf+WIop6hDhkFzJhmLcqoAoGCCqGSM49\r\n" +"AwEHoUQDQgAEV+WusXPf06y7k7iB/xKu7uZTrM5VU/Y0Dswu42MlC9+Y4vNcYDaW\r\n" +"wNUYFHDlf5/VS0UY5bBs1Vz4lo+HcKPkxw==\r\n" +"-----END EC PRIVATE KEY-----\r\n"; + +const size_t mbedtls_test_ca_crt_ec_len = sizeof( mbedtls_test_ca_crt_ec ); +const size_t mbedtls_test_ca_key_ec_len = sizeof( mbedtls_test_ca_key_ec ); +const size_t mbedtls_test_ca_pwd_ec_len = sizeof( mbedtls_test_ca_pwd_ec ) - 1; +const size_t mbedtls_test_srv_crt_ec_len = sizeof( mbedtls_test_srv_crt_ec ); +const size_t mbedtls_test_srv_key_ec_len = sizeof( mbedtls_test_srv_key_ec ); +const size_t mbedtls_test_cli_crt_ec_len = sizeof( mbedtls_test_cli_crt_ec ); +const size_t mbedtls_test_cli_key_ec_len = sizeof( mbedtls_test_cli_key_ec ); +#else +#define TEST_CA_CRT_EC +#endif /* MBEDTLS_ECDSA_C */ + +#if defined(MBEDTLS_RSA_C) +#define TEST_CA_CRT_RSA \ +"-----BEGIN CERTIFICATE-----\r\n" \ +"MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n" \ +"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" \ +"MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G\r\n" \ +"A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G\r\n" \ +"CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx\r\n" \ +"mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny\r\n" \ +"50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n\r\n" \ +"YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL\r\n" \ +"R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu\r\n" \ +"KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj\r\n" \ +"gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH\r\n" \ +"/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV\r\n" \ +"BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz\r\n" \ +"dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ\r\n" \ +"SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H\r\n" \ +"DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF\r\n" \ +"pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf\r\n" \ +"m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ\r\n" \ +"7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==\r\n" \ +"-----END CERTIFICATE-----\r\n" +const char mbedtls_test_ca_crt_rsa[] = TEST_CA_CRT_RSA; + +const char mbedtls_test_ca_key_rsa[] = +"-----BEGIN RSA PRIVATE KEY-----\r\n" +"Proc-Type: 4,ENCRYPTED\r\n" +"DEK-Info: DES-EDE3-CBC,A8A95B05D5B7206B\r\n" +"\r\n" +"9Qd9GeArejl1GDVh2lLV1bHt0cPtfbh5h/5zVpAVaFpqtSPMrElp50Rntn9et+JA\r\n" +"7VOyboR+Iy2t/HU4WvA687k3Bppe9GwKHjHhtl//8xFKwZr3Xb5yO5JUP8AUctQq\r\n" +"Nb8CLlZyuUC+52REAAthdWgsX+7dJO4yabzUcQ22Tp9JSD0hiL43BlkWYUNK3dAo\r\n" +"PZlmiptjnzVTjg1MxsBSydZinWOLBV8/JQgxSPo2yD4uEfig28qbvQ2wNIn0pnAb\r\n" +"GxnSAOazkongEGfvcjIIs+LZN9gXFhxcOh6kc4Q/c99B7QWETwLLkYgZ+z1a9VY9\r\n" +"gEU7CwCxYCD+h9hY6FPmsK0/lC4O7aeRKpYq00rPPxs6i7phiexg6ax6yTMmArQq\r\n" +"QmK3TAsJm8V/J5AWpLEV6jAFgRGymGGHnof0DXzVWZidrcZJWTNuGEX90nB3ee2w\r\n" +"PXJEFWKoD3K3aFcSLdHYr3mLGxP7H9ThQai9VsycxZKS5kwvBKQ//YMrmFfwPk8x\r\n" +"vTeY4KZMaUrveEel5tWZC94RSMKgxR6cyE1nBXyTQnDOGbfpNNgBKxyKbINWoOJU\r\n" +"WJZAwlsQn+QzCDwpri7+sV1mS3gBE6UY7aQmnmiiaC2V3Hbphxct/en5QsfDOt1X\r\n" +"JczSfpRWLlbPznZg8OQh/VgCMA58N5DjOzTIK7sJJ5r+94ZBTCpgAMbF588f0NTR\r\n" +"KCe4yrxGJR7X02M4nvD4IwOlpsQ8xQxZtOSgXv4LkxvdU9XJJKWZ/XNKJeWztxSe\r\n" +"Z1vdTc2YfsDBA2SEv33vxHx2g1vqtw8SjDRT2RaQSS0QuSaMJimdOX6mTOCBKk1J\r\n" +"9Q5mXTrER+/LnK0jEmXsBXWA5bqqVZIyahXSx4VYZ7l7w/PHiUDtDgyRhMMKi4n2\r\n" +"iQvQcWSQTjrpnlJbca1/DkpRt3YwrvJwdqb8asZU2VrNETh5x0QVefDRLFiVpif/\r\n" +"tUaeAe/P1F8OkS7OIZDs1SUbv/sD2vMbhNkUoCms3/PvNtdnvgL4F0zhaDpKCmlT\r\n" +"P8vx49E7v5CyRNmED9zZg4o3wmMqrQO93PtTug3Eu9oVx1zPQM1NVMyBa2+f29DL\r\n" +"1nuTCeXdo9+ni45xx+jAI4DCwrRdhJ9uzZyC6962H37H6D+5naNvClFR1s6li1Gb\r\n" +"nqPoiy/OBsEx9CaDGcqQBp5Wme/3XW+6z1ISOx+igwNTVCT14mHdBMbya0eIKft5\r\n" +"X+GnwtgEMyCYyyWuUct8g4RzErcY9+yW9Om5Hzpx4zOuW4NPZgPDTgK+t2RSL/Yq\r\n" +"rE1njrgeGYcVeG3f+OftH4s6fPbq7t1A5ZgUscbLMBqr9tK+OqygR4EgKBPsH6Cz\r\n" +"L6zlv/2RV0qAHvVuDJcIDIgwY5rJtINEm32rhOeFNJwZS5MNIC1czXZx5//ugX7l\r\n" +"I4sy5nbVhwSjtAk8Xg5dZbdTZ6mIrb7xqH+fdakZor1khG7bC2uIwibD3cSl2XkR\r\n" +"wN48lslbHnqqagr6Xm1nNOSVl8C/6kbJEsMpLhAezfRtGwvOucoaE+WbeUNolGde\r\n" +"P/eQiddSf0brnpiLJRh7qZrl9XuqYdpUqnoEdMAfotDOID8OtV7gt8a48ad8VPW2\r\n" +"-----END RSA PRIVATE KEY-----\r\n"; + +const char mbedtls_test_ca_pwd_rsa[] = "PolarSSLTest"; + +const char mbedtls_test_srv_crt_rsa[] = +"-----BEGIN CERTIFICATE-----\r\n" +"MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n" +"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" +"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n" +"A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN\r\n" +"AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN\r\n" +"owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz\r\n" +"NtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kM\r\n" +"tQCQ4dqCEGZ9rlQri2V5kaHiYcPNQEkI7mgM8YuG0ka/0LiqEQMef1aoGh5EGA8P\r\n" +"hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya\r\n" +"HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYD\r\n" +"VR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgw\r\n" +"FoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQEFBQADggEBAJxnXClY\r\n" +"oHkbp70cqBrsGXLybA74czbO5RdLEgFs7rHVS9r+c293luS/KdliLScZqAzYVylw\r\n" +"UfRWvKMoWhHYKp3dEIS4xTXk6/5zXxhv9Rw8SGc8qn6vITHk1S1mPevtekgasY5Y\r\n" +"iWQuM3h4YVlRH3HHEMAD1TnAexfXHHDFQGe+Bd1iAbz1/sH9H8l4StwX6egvTK3M\r\n" +"wXRwkKkvjKaEDA9ATbZx0mI8LGsxSuCqe9r9dyjmttd47J1p1Rulz3CLzaRcVIuS\r\n" +"RRQfaD8neM9c1S/iJ/amTVqJxA1KOdOS5780WhPfSArA+g4qAmSjelc3p4wWpha8\r\n" +"zhuYwjVuX6JHG0c=\r\n" +"-----END CERTIFICATE-----\r\n"; + +const char mbedtls_test_srv_key_rsa[] = +"-----BEGIN RSA PRIVATE KEY-----\r\n" +"MIIEpAIBAAKCAQEAwU2j3efNHdEE10lyuJmsDnjkOjxKzzoTFtBa5M2jAIin7h5r\r\n" +"lqdStJDvLXJ6PiSa/LY0rCT1d+AmZIycsCh9odrqjObJHJa8/sEEUrM21KP64bF2\r\n" +"2JDBYbRmUjaiJlOqq3ReB30Zgtsq2B+g2Q0cLUlm91slc0boC4pPaQy1AJDh2oIQ\r\n" +"Zn2uVCuLZXmRoeJhw81ASQjuaAzxi4bSRr/QuKoRAx5/VqgaHkQYDw+Fi9qLRF7i\r\n" +"GMZiL8dmjfpd2H3zJ4kpAcWQDj8n8TDISg7v1t7HxydrxwU9esQCPJodPg/oNJhb\r\n" +"y3NLUpbYEaIsgIhpOVrTD7DeWS8Rx/fqEgEwlwIDAQABAoIBAQCXR0S8EIHFGORZ\r\n" +"++AtOg6eENxD+xVs0f1IeGz57Tjo3QnXX7VBZNdj+p1ECvhCE/G7XnkgU5hLZX+G\r\n" +"Z0jkz/tqJOI0vRSdLBbipHnWouyBQ4e/A1yIJdlBtqXxJ1KE/ituHRbNc4j4kL8Z\r\n" +"/r6pvwnTI0PSx2Eqs048YdS92LT6qAv4flbNDxMn2uY7s4ycS4Q8w1JXnCeaAnYm\r\n" +"WYI5wxO+bvRELR2Mcz5DmVnL8jRyml6l6582bSv5oufReFIbyPZbQWlXgYnpu6He\r\n" +"GTc7E1zKYQGG/9+DQUl/1vQuCPqQwny0tQoX2w5tdYpdMdVm+zkLtbajzdTviJJa\r\n" +"TWzL6lt5AoGBAN86+SVeJDcmQJcv4Eq6UhtRr4QGMiQMz0Sod6ettYxYzMgxtw28\r\n" +"CIrgpozCc+UaZJLo7UxvC6an85r1b2nKPCLQFaggJ0H4Q0J/sZOhBIXaoBzWxveK\r\n" +"nupceKdVxGsFi8CDy86DBfiyFivfBj+47BbaQzPBj7C4rK7UlLjab2rDAoGBAN2u\r\n" +"AM2gchoFiu4v1HFL8D7lweEpi6ZnMJjnEu/dEgGQJFjwdpLnPbsj4c75odQ4Gz8g\r\n" +"sw9lao9VVzbusoRE/JGI4aTdO0pATXyG7eG1Qu+5Yc1YGXcCrliA2xM9xx+d7f+s\r\n" +"mPzN+WIEg5GJDYZDjAzHG5BNvi/FfM1C9dOtjv2dAoGAF0t5KmwbjWHBhcVqO4Ic\r\n" +"BVvN3BIlc1ue2YRXEDlxY5b0r8N4XceMgKmW18OHApZxfl8uPDauWZLXOgl4uepv\r\n" +"whZC3EuWrSyyICNhLY21Ah7hbIEBPF3L3ZsOwC+UErL+dXWLdB56Jgy3gZaBeW7b\r\n" +"vDrEnocJbqCm7IukhXHOBK8CgYEAwqdHB0hqyNSzIOGY7v9abzB6pUdA3BZiQvEs\r\n" +"3LjHVd4HPJ2x0N8CgrBIWOE0q8+0hSMmeE96WW/7jD3fPWwCR5zlXknxBQsfv0gP\r\n" +"3BC5PR0Qdypz+d+9zfMf625kyit4T/hzwhDveZUzHnk1Cf+IG7Q+TOEnLnWAWBED\r\n" +"ISOWmrUCgYAFEmRxgwAc/u+D6t0syCwAYh6POtscq9Y0i9GyWk89NzgC4NdwwbBH\r\n" +"4AgahOxIxXx2gxJnq3yfkJfIjwf0s2DyP0kY2y6Ua1OeomPeY9mrIS4tCuDQ6LrE\r\n" +"TB6l9VGoxJL4fyHnZb8L5gGvnB1bbD8cL6YPaDiOhcRseC9vBiEuVg==\r\n" +"-----END RSA PRIVATE KEY-----\r\n"; + +const char mbedtls_test_cli_crt_rsa[] = +"-----BEGIN CERTIFICATE-----\r\n" +"MIIDPzCCAiegAwIBAgIBBDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n" +"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" +"MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA8MQswCQYDVQQGEwJOTDERMA8G\r\n" +"A1UEChMIUG9sYXJTU0wxGjAYBgNVBAMTEVBvbGFyU1NMIENsaWVudCAyMIIBIjAN\r\n" +"BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6f\r\n" +"M60Nj4o8VmXl3ETZzGaFB9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu\r\n" +"1C93KYRhTYJQj6eVSHD1bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEw\r\n" +"MjDV0/YI0FZPRo7yX/k9Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v\r\n" +"4Jv4EFbMs44TFeY0BGbH7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx/\r\n" +"/DZrtenNLQNiTrM9AM+vdqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQAB\r\n" +"o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBRxoQBzckAvVHZeM/xSj7zx3WtGITAf\r\n" +"BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQUFAAOC\r\n" +"AQEAAn86isAM8X+mVwJqeItt6E9slhEQbAofyk+diH1Lh8Y9iLlWQSKbw/UXYjx5\r\n" +"LLPZcniovxIcARC/BjyZR9g3UwTHNGNm+rwrqa15viuNOFBchykX/Orsk02EH7NR\r\n" +"Alw5WLPorYjED6cdVQgBl9ot93HdJogRiXCxErM7NC8/eP511mjq+uLDjLKH8ZPQ\r\n" +"8I4ekHJnroLsDkIwXKGIsvIBHQy2ac/NwHLCQOK6mfum1pRx52V4Utu5dLLjD5bM\r\n" +"xOBC7KU4xZKuMXXZM6/93Yb51K/J4ahf1TxJlTWXtnzDr9saEYdNy2SKY/6ZiDNH\r\n" +"D+stpAKiQLAWaAusIWKYEyw9MQ==\r\n" +"-----END CERTIFICATE-----\r\n"; + +const char mbedtls_test_cli_key_rsa[] = +"-----BEGIN RSA PRIVATE KEY-----\r\n" +"MIIEpAIBAAKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6fM60Nj4o8VmXl3ETZzGaF\r\n" +"B9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu1C93KYRhTYJQj6eVSHD1\r\n" +"bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEwMjDV0/YI0FZPRo7yX/k9\r\n" +"Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v4Jv4EFbMs44TFeY0BGbH\r\n" +"7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx//DZrtenNLQNiTrM9AM+v\r\n" +"dqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQABAoIBAGdNtfYDiap6bzst\r\n" +"yhCiI8m9TtrhZw4MisaEaN/ll3XSjaOG2dvV6xMZCMV+5TeXDHOAZnY18Yi18vzz\r\n" +"4Ut2TnNFzizCECYNaA2fST3WgInnxUkV3YXAyP6CNxJaCmv2aA0yFr2kFVSeaKGt\r\n" +"ymvljNp2NVkvm7Th8fBQBO7I7AXhz43k0mR7XmPgewe8ApZOG3hstkOaMvbWAvWA\r\n" +"zCZupdDjZYjOJqlA4eEA4H8/w7F83r5CugeBE8LgEREjLPiyejrU5H1fubEY+h0d\r\n" +"l5HZBJ68ybTXfQ5U9o/QKA3dd0toBEhhdRUDGzWtjvwkEQfqF1reGWj/tod/gCpf\r\n" +"DFi6X0ECgYEA4wOv/pjSC3ty6TuOvKX2rOUiBrLXXv2JSxZnMoMiWI5ipLQt+RYT\r\n" +"VPafL/m7Dn6MbwjayOkcZhBwk5CNz5A6Q4lJ64Mq/lqHznRCQQ2Mc1G8eyDF/fYL\r\n" +"Ze2pLvwP9VD5jTc2miDfw+MnvJhywRRLcemDFP8k4hQVtm8PMp3ZmNECgYEA4gz7\r\n" +"wzObR4gn8ibe617uQPZjWzUj9dUHYd+in1gwBCIrtNnaRn9I9U/Q6tegRYpii4ys\r\n" +"c176NmU+umy6XmuSKV5qD9bSpZWG2nLFnslrN15Lm3fhZxoeMNhBaEDTnLT26yoi\r\n" +"33gp0mSSWy94ZEqipms+ULF6sY1ZtFW6tpGFoy8CgYAQHhnnvJflIs2ky4q10B60\r\n" +"ZcxFp3rtDpkp0JxhFLhiizFrujMtZSjYNm5U7KkgPVHhLELEUvCmOnKTt4ap/vZ0\r\n" +"BxJNe1GZH3pW6SAvGDQpl9sG7uu/vTFP+lCxukmzxB0DrrDcvorEkKMom7ZCCRvW\r\n" +"KZsZ6YeH2Z81BauRj218kQKBgQCUV/DgKP2985xDTT79N08jUo3hTP5MVYCCuj/+\r\n" +"UeEw1TvZcx3LJby7P6Xad6a1/BqveaGyFKIfEFIaBUBItk801sDDpDaYc4gL00Xc\r\n" +"7lFuBHOZkxJYlss5QrGpuOEl9ZwUt5IrFLBdYaKqNHzNVC1pCPfb/JyH6Dr2HUxq\r\n" +"gxUwAQKBgQCcU6G2L8AG9d9c0UpOyL1tMvFe5Ttw0KjlQVdsh1MP6yigYo9DYuwu\r\n" +"bHFVW2r0dBTqegP2/KTOxKzaHfC1qf0RGDsUoJCNJrd1cwoCLG8P2EF4w3OBrKqv\r\n" +"8u4ytY0F+Vlanj5lm3TaoHSVF1+NWPyOTiwevIECGKwSxvlki4fDAA==\r\n" +"-----END RSA PRIVATE KEY-----\r\n"; + +const size_t mbedtls_test_ca_crt_rsa_len = sizeof( mbedtls_test_ca_crt_rsa ); +const size_t mbedtls_test_ca_key_rsa_len = sizeof( mbedtls_test_ca_key_rsa ); +const size_t mbedtls_test_ca_pwd_rsa_len = sizeof( mbedtls_test_ca_pwd_rsa ) - 1; +const size_t mbedtls_test_srv_crt_rsa_len = sizeof( mbedtls_test_srv_crt_rsa ); +const size_t mbedtls_test_srv_key_rsa_len = sizeof( mbedtls_test_srv_key_rsa ); +const size_t mbedtls_test_cli_crt_rsa_len = sizeof( mbedtls_test_cli_crt_rsa ); +const size_t mbedtls_test_cli_key_rsa_len = sizeof( mbedtls_test_cli_key_rsa ); +#else +#define TEST_CA_CRT_RSA +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_PEM_PARSE_C) +/* Concatenation of all available CA certificates */ +const char mbedtls_test_cas_pem[] = TEST_CA_CRT_RSA TEST_CA_CRT_EC; +const size_t mbedtls_test_cas_pem_len = sizeof( mbedtls_test_cas_pem ); +#endif + +/* List of all available CA certificates */ +const char * mbedtls_test_cas[] = { +#if defined(MBEDTLS_RSA_C) + mbedtls_test_ca_crt_rsa, +#endif +#if defined(MBEDTLS_ECDSA_C) + mbedtls_test_ca_crt_ec, +#endif + NULL +}; +const size_t mbedtls_test_cas_len[] = { +#if defined(MBEDTLS_RSA_C) + sizeof( mbedtls_test_ca_crt_rsa ), +#endif +#if defined(MBEDTLS_ECDSA_C) + sizeof( mbedtls_test_ca_crt_ec ), +#endif + 0 +}; + +#if defined(MBEDTLS_RSA_C) +const char *mbedtls_test_ca_crt = mbedtls_test_ca_crt_rsa; +const char *mbedtls_test_ca_key = mbedtls_test_ca_key_rsa; +const char *mbedtls_test_ca_pwd = mbedtls_test_ca_pwd_rsa; +const char *mbedtls_test_srv_crt = mbedtls_test_srv_crt_rsa; +const char *mbedtls_test_srv_key = mbedtls_test_srv_key_rsa; +const char *mbedtls_test_cli_crt = mbedtls_test_cli_crt_rsa; +const char *mbedtls_test_cli_key = mbedtls_test_cli_key_rsa; +const size_t mbedtls_test_ca_crt_len = sizeof( mbedtls_test_ca_crt_rsa ); +const size_t mbedtls_test_ca_key_len = sizeof( mbedtls_test_ca_key_rsa ); +const size_t mbedtls_test_ca_pwd_len = sizeof( mbedtls_test_ca_pwd_rsa ) - 1; +const size_t mbedtls_test_srv_crt_len = sizeof( mbedtls_test_srv_crt_rsa ); +const size_t mbedtls_test_srv_key_len = sizeof( mbedtls_test_srv_key_rsa ); +const size_t mbedtls_test_cli_crt_len = sizeof( mbedtls_test_cli_crt_rsa ); +const size_t mbedtls_test_cli_key_len = sizeof( mbedtls_test_cli_key_rsa ); +#else /* ! MBEDTLS_RSA_C, so MBEDTLS_ECDSA_C */ +const char *mbedtls_test_ca_crt = mbedtls_test_ca_crt_ec; +const char *mbedtls_test_ca_key = mbedtls_test_ca_key_ec; +const char *mbedtls_test_ca_pwd = mbedtls_test_ca_pwd_ec; +const char *mbedtls_test_srv_crt = mbedtls_test_srv_crt_ec; +const char *mbedtls_test_srv_key = mbedtls_test_srv_key_ec; +const char *mbedtls_test_cli_crt = mbedtls_test_cli_crt_ec; +const char *mbedtls_test_cli_key = mbedtls_test_cli_key_ec; +const size_t mbedtls_test_ca_crt_len = sizeof( mbedtls_test_ca_crt_ec ); +const size_t mbedtls_test_ca_key_len = sizeof( mbedtls_test_ca_key_ec ); +const size_t mbedtls_test_ca_pwd_len = sizeof( mbedtls_test_ca_pwd_ec ) - 1; +const size_t mbedtls_test_srv_crt_len = sizeof( mbedtls_test_srv_crt_ec ); +const size_t mbedtls_test_srv_key_len = sizeof( mbedtls_test_srv_key_ec ); +const size_t mbedtls_test_cli_crt_len = sizeof( mbedtls_test_cli_crt_ec ); +const size_t mbedtls_test_cli_key_len = sizeof( mbedtls_test_cli_key_ec ); +#endif /* MBEDTLS_RSA_C */ + +#endif /* MBEDTLS_CERTS_C */ diff --git a/mbedtls/cipher.c b/mbedtls/cipher.c new file mode 100644 index 0000000..a883438 --- /dev/null +++ b/mbedtls/cipher.c @@ -0,0 +1,917 @@ +/** + * \file cipher.c + * + * \brief Generic cipher wrapper for mbed TLS + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CIPHER_C) + +#include "mbedtls/cipher.h" +#include "mbedtls/cipher_internal.h" + +#include +#include + +#if defined(MBEDTLS_GCM_C) +#include "mbedtls/gcm.h" +#endif + +#if defined(MBEDTLS_CCM_C) +#include "mbedtls/ccm.h" +#endif + +#if defined(MBEDTLS_CMAC_C) +#include "mbedtls/cmac.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) +#define MBEDTLS_CIPHER_MODE_STREAM +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +static int supported_init = 0; + +const int *mbedtls_cipher_list( void ) +{ + const mbedtls_cipher_definition_t *def; + int *type; + + if( ! supported_init ) + { + def = mbedtls_cipher_definitions; + type = mbedtls_cipher_supported; + + while( def->type != 0 ) + *type++ = (*def++).type; + + *type = 0; + + supported_init = 1; + } + + return( mbedtls_cipher_supported ); +} + +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type( const mbedtls_cipher_type_t cipher_type ) +{ + const mbedtls_cipher_definition_t *def; + + for( def = mbedtls_cipher_definitions; def->info != NULL; def++ ) + if( def->type == cipher_type ) + return( def->info ); + + return( NULL ); +} + +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string( const char *cipher_name ) +{ + const mbedtls_cipher_definition_t *def; + + if( NULL == cipher_name ) + return( NULL ); + + for( def = mbedtls_cipher_definitions; def->info != NULL; def++ ) + if( ! strcmp( def->info->name, cipher_name ) ) + return( def->info ); + + return( NULL ); +} + +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values( const mbedtls_cipher_id_t cipher_id, + int key_bitlen, + const mbedtls_cipher_mode_t mode ) +{ + const mbedtls_cipher_definition_t *def; + + for( def = mbedtls_cipher_definitions; def->info != NULL; def++ ) + if( def->info->base->cipher == cipher_id && + def->info->key_bitlen == (unsigned) key_bitlen && + def->info->mode == mode ) + return( def->info ); + + return( NULL ); +} + +void mbedtls_cipher_init( mbedtls_cipher_context_t *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_cipher_context_t ) ); +} + +void mbedtls_cipher_free( mbedtls_cipher_context_t *ctx ) +{ + if( ctx == NULL ) + return; + +#if defined(MBEDTLS_CMAC_C) + if( ctx->cmac_ctx ) + { + mbedtls_zeroize( ctx->cmac_ctx, sizeof( mbedtls_cmac_context_t ) ); + mbedtls_free( ctx->cmac_ctx ); + } +#endif + + if( ctx->cipher_ctx ) + ctx->cipher_info->base->ctx_free_func( ctx->cipher_ctx ); + + mbedtls_zeroize( ctx, sizeof(mbedtls_cipher_context_t) ); +} + +int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx, const mbedtls_cipher_info_t *cipher_info ) +{ + if( NULL == cipher_info || NULL == ctx ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + memset( ctx, 0, sizeof( mbedtls_cipher_context_t ) ); + + if( NULL == ( ctx->cipher_ctx = cipher_info->base->ctx_alloc_func() ) ) + return( MBEDTLS_ERR_CIPHER_ALLOC_FAILED ); + + ctx->cipher_info = cipher_info; + +#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) + /* + * Ignore possible errors caused by a cipher mode that doesn't use padding + */ +#if defined(MBEDTLS_CIPHER_PADDING_PKCS7) + (void) mbedtls_cipher_set_padding_mode( ctx, MBEDTLS_PADDING_PKCS7 ); +#else + (void) mbedtls_cipher_set_padding_mode( ctx, MBEDTLS_PADDING_NONE ); +#endif +#endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ + + return( 0 ); +} + +int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx, const unsigned char *key, + int key_bitlen, const mbedtls_operation_t operation ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + if( ( ctx->cipher_info->flags & MBEDTLS_CIPHER_VARIABLE_KEY_LEN ) == 0 && + (int) ctx->cipher_info->key_bitlen != key_bitlen ) + { + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + + ctx->key_bitlen = key_bitlen; + ctx->operation = operation; + + /* + * For CFB and CTR mode always use the encryption key schedule + */ + if( MBEDTLS_ENCRYPT == operation || + MBEDTLS_MODE_CFB == ctx->cipher_info->mode || + MBEDTLS_MODE_CTR == ctx->cipher_info->mode ) + { + return ctx->cipher_info->base->setkey_enc_func( ctx->cipher_ctx, key, + ctx->key_bitlen ); + } + + if( MBEDTLS_DECRYPT == operation ) + return ctx->cipher_info->base->setkey_dec_func( ctx->cipher_ctx, key, + ctx->key_bitlen ); + + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); +} + +int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len ) +{ + size_t actual_iv_size; + + if( NULL == ctx || NULL == ctx->cipher_info || NULL == iv ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + /* avoid buffer overflow in ctx->iv */ + if( iv_len > MBEDTLS_MAX_IV_LENGTH ) + return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); + + if( ( ctx->cipher_info->flags & MBEDTLS_CIPHER_VARIABLE_IV_LEN ) != 0 ) + actual_iv_size = iv_len; + else + { + actual_iv_size = ctx->cipher_info->iv_size; + + /* avoid reading past the end of input buffer */ + if( actual_iv_size > iv_len ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + + memcpy( ctx->iv, iv, actual_iv_size ); + ctx->iv_size = actual_iv_size; + + return( 0 ); +} + +int mbedtls_cipher_reset( mbedtls_cipher_context_t *ctx ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + ctx->unprocessed_len = 0; + + return( 0 ); +} + +#if defined(MBEDTLS_GCM_C) +int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx, + const unsigned char *ad, size_t ad_len ) +{ + if( NULL == ctx || NULL == ctx->cipher_info ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode ) + { + return mbedtls_gcm_starts( (mbedtls_gcm_context *) ctx->cipher_ctx, ctx->operation, + ctx->iv, ctx->iv_size, ad, ad_len ); + } + + return( 0 ); +} +#endif /* MBEDTLS_GCM_C */ + +int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *input, + size_t ilen, unsigned char *output, size_t *olen ) +{ + int ret; + size_t block_size = 0; + + if( NULL == ctx || NULL == ctx->cipher_info || NULL == olen ) + { + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + + *olen = 0; + block_size = mbedtls_cipher_get_block_size( ctx ); + + if( ctx->cipher_info->mode == MBEDTLS_MODE_ECB ) + { + if( ilen != block_size ) + return( MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED ); + + *olen = ilen; + + if( 0 != ( ret = ctx->cipher_info->base->ecb_func( ctx->cipher_ctx, + ctx->operation, input, output ) ) ) + { + return( ret ); + } + + return( 0 ); + } + +#if defined(MBEDTLS_GCM_C) + if( ctx->cipher_info->mode == MBEDTLS_MODE_GCM ) + { + *olen = ilen; + return mbedtls_gcm_update( (mbedtls_gcm_context *) ctx->cipher_ctx, ilen, input, + output ); + } +#endif + + if ( 0 == block_size ) + { + return MBEDTLS_ERR_CIPHER_INVALID_CONTEXT; + } + + if( input == output && + ( ctx->unprocessed_len != 0 || ilen % block_size ) ) + { + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + if( ctx->cipher_info->mode == MBEDTLS_MODE_CBC ) + { + size_t copy_len = 0; + + /* + * If there is not enough data for a full block, cache it. + */ + if( ( ctx->operation == MBEDTLS_DECRYPT && + ilen + ctx->unprocessed_len <= block_size ) || + ( ctx->operation == MBEDTLS_ENCRYPT && + ilen + ctx->unprocessed_len < block_size ) ) + { + memcpy( &( ctx->unprocessed_data[ctx->unprocessed_len] ), input, + ilen ); + + ctx->unprocessed_len += ilen; + return( 0 ); + } + + /* + * Process cached data first + */ + if( 0 != ctx->unprocessed_len ) + { + copy_len = block_size - ctx->unprocessed_len; + + memcpy( &( ctx->unprocessed_data[ctx->unprocessed_len] ), input, + copy_len ); + + if( 0 != ( ret = ctx->cipher_info->base->cbc_func( ctx->cipher_ctx, + ctx->operation, block_size, ctx->iv, + ctx->unprocessed_data, output ) ) ) + { + return( ret ); + } + + *olen += block_size; + output += block_size; + ctx->unprocessed_len = 0; + + input += copy_len; + ilen -= copy_len; + } + + /* + * Cache final, incomplete block + */ + if( 0 != ilen ) + { + if( 0 == block_size ) + { + return MBEDTLS_ERR_CIPHER_INVALID_CONTEXT; + } + + copy_len = ilen % block_size; + if( copy_len == 0 && ctx->operation == MBEDTLS_DECRYPT ) + copy_len = block_size; + + memcpy( ctx->unprocessed_data, &( input[ilen - copy_len] ), + copy_len ); + + ctx->unprocessed_len += copy_len; + ilen -= copy_len; + } + + /* + * Process remaining full blocks + */ + if( ilen ) + { + if( 0 != ( ret = ctx->cipher_info->base->cbc_func( ctx->cipher_ctx, + ctx->operation, ilen, ctx->iv, input, output ) ) ) + { + return( ret ); + } + + *olen += ilen; + } + + return( 0 ); + } +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) + if( ctx->cipher_info->mode == MBEDTLS_MODE_CFB ) + { + if( 0 != ( ret = ctx->cipher_info->base->cfb_func( ctx->cipher_ctx, + ctx->operation, ilen, &ctx->unprocessed_len, ctx->iv, + input, output ) ) ) + { + return( ret ); + } + + *olen = ilen; + + return( 0 ); + } +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) + if( ctx->cipher_info->mode == MBEDTLS_MODE_CTR ) + { + if( 0 != ( ret = ctx->cipher_info->base->ctr_func( ctx->cipher_ctx, + ilen, &ctx->unprocessed_len, ctx->iv, + ctx->unprocessed_data, input, output ) ) ) + { + return( ret ); + } + + *olen = ilen; + + return( 0 ); + } +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + if( ctx->cipher_info->mode == MBEDTLS_MODE_STREAM ) + { + if( 0 != ( ret = ctx->cipher_info->base->stream_func( ctx->cipher_ctx, + ilen, input, output ) ) ) + { + return( ret ); + } + + *olen = ilen; + + return( 0 ); + } +#endif /* MBEDTLS_CIPHER_MODE_STREAM */ + + return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); +} + +#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) +#if defined(MBEDTLS_CIPHER_PADDING_PKCS7) +/* + * PKCS7 (and PKCS5) padding: fill with ll bytes, with ll = padding_len + */ +static void add_pkcs_padding( unsigned char *output, size_t output_len, + size_t data_len ) +{ + size_t padding_len = output_len - data_len; + unsigned char i; + + for( i = 0; i < padding_len; i++ ) + output[data_len + i] = (unsigned char) padding_len; +} + +static int get_pkcs_padding( unsigned char *input, size_t input_len, + size_t *data_len ) +{ + size_t i, pad_idx; + unsigned char padding_len, bad = 0; + + if( NULL == input || NULL == data_len ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + padding_len = input[input_len - 1]; + *data_len = input_len - padding_len; + + /* Avoid logical || since it results in a branch */ + bad |= padding_len > input_len; + bad |= padding_len == 0; + + /* The number of bytes checked must be independent of padding_len, + * so pick input_len, which is usually 8 or 16 (one block) */ + pad_idx = input_len - padding_len; + for( i = 0; i < input_len; i++ ) + bad |= ( input[i] ^ padding_len ) * ( i >= pad_idx ); + + return( MBEDTLS_ERR_CIPHER_INVALID_PADDING * ( bad != 0 ) ); +} +#endif /* MBEDTLS_CIPHER_PADDING_PKCS7 */ + +#if defined(MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS) +/* + * One and zeros padding: fill with 80 00 ... 00 + */ +static void add_one_and_zeros_padding( unsigned char *output, + size_t output_len, size_t data_len ) +{ + size_t padding_len = output_len - data_len; + unsigned char i = 0; + + output[data_len] = 0x80; + for( i = 1; i < padding_len; i++ ) + output[data_len + i] = 0x00; +} + +static int get_one_and_zeros_padding( unsigned char *input, size_t input_len, + size_t *data_len ) +{ + size_t i; + unsigned char done = 0, prev_done, bad; + + if( NULL == input || NULL == data_len ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + bad = 0xFF; + *data_len = 0; + for( i = input_len; i > 0; i-- ) + { + prev_done = done; + done |= ( input[i-1] != 0 ); + *data_len |= ( i - 1 ) * ( done != prev_done ); + bad &= ( input[i-1] ^ 0x80 ) | ( done == prev_done ); + } + + return( MBEDTLS_ERR_CIPHER_INVALID_PADDING * ( bad != 0 ) ); + +} +#endif /* MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS */ + +#if defined(MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN) +/* + * Zeros and len padding: fill with 00 ... 00 ll, where ll is padding length + */ +static void add_zeros_and_len_padding( unsigned char *output, + size_t output_len, size_t data_len ) +{ + size_t padding_len = output_len - data_len; + unsigned char i = 0; + + for( i = 1; i < padding_len; i++ ) + output[data_len + i - 1] = 0x00; + output[output_len - 1] = (unsigned char) padding_len; +} + +static int get_zeros_and_len_padding( unsigned char *input, size_t input_len, + size_t *data_len ) +{ + size_t i, pad_idx; + unsigned char padding_len, bad = 0; + + if( NULL == input || NULL == data_len ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + padding_len = input[input_len - 1]; + *data_len = input_len - padding_len; + + /* Avoid logical || since it results in a branch */ + bad |= padding_len > input_len; + bad |= padding_len == 0; + + /* The number of bytes checked must be independent of padding_len */ + pad_idx = input_len - padding_len; + for( i = 0; i < input_len - 1; i++ ) + bad |= input[i] * ( i >= pad_idx ); + + return( MBEDTLS_ERR_CIPHER_INVALID_PADDING * ( bad != 0 ) ); +} +#endif /* MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN */ + +#if defined(MBEDTLS_CIPHER_PADDING_ZEROS) +/* + * Zero padding: fill with 00 ... 00 + */ +static void add_zeros_padding( unsigned char *output, + size_t output_len, size_t data_len ) +{ + size_t i; + + for( i = data_len; i < output_len; i++ ) + output[i] = 0x00; +} + +static int get_zeros_padding( unsigned char *input, size_t input_len, + size_t *data_len ) +{ + size_t i; + unsigned char done = 0, prev_done; + + if( NULL == input || NULL == data_len ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + *data_len = 0; + for( i = input_len; i > 0; i-- ) + { + prev_done = done; + done |= ( input[i-1] != 0 ); + *data_len |= i * ( done != prev_done ); + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_PADDING_ZEROS */ + +/* + * No padding: don't pad :) + * + * There is no add_padding function (check for NULL in mbedtls_cipher_finish) + * but a trivial get_padding function + */ +static int get_no_padding( unsigned char *input, size_t input_len, + size_t *data_len ) +{ + if( NULL == input || NULL == data_len ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + *data_len = input_len; + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ + +int mbedtls_cipher_finish( mbedtls_cipher_context_t *ctx, + unsigned char *output, size_t *olen ) +{ + if( NULL == ctx || NULL == ctx->cipher_info || NULL == olen ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + *olen = 0; + + if( MBEDTLS_MODE_CFB == ctx->cipher_info->mode || + MBEDTLS_MODE_CTR == ctx->cipher_info->mode || + MBEDTLS_MODE_GCM == ctx->cipher_info->mode || + MBEDTLS_MODE_STREAM == ctx->cipher_info->mode ) + { + return( 0 ); + } + + if( MBEDTLS_MODE_ECB == ctx->cipher_info->mode ) + { + if( ctx->unprocessed_len != 0 ) + return( MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED ); + + return( 0 ); + } + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + if( MBEDTLS_MODE_CBC == ctx->cipher_info->mode ) + { + int ret = 0; + + if( MBEDTLS_ENCRYPT == ctx->operation ) + { + /* check for 'no padding' mode */ + if( NULL == ctx->add_padding ) + { + if( 0 != ctx->unprocessed_len ) + return( MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED ); + + return( 0 ); + } + + ctx->add_padding( ctx->unprocessed_data, mbedtls_cipher_get_iv_size( ctx ), + ctx->unprocessed_len ); + } + else if( mbedtls_cipher_get_block_size( ctx ) != ctx->unprocessed_len ) + { + /* + * For decrypt operations, expect a full block, + * or an empty block if no padding + */ + if( NULL == ctx->add_padding && 0 == ctx->unprocessed_len ) + return( 0 ); + + return( MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED ); + } + + /* cipher block */ + if( 0 != ( ret = ctx->cipher_info->base->cbc_func( ctx->cipher_ctx, + ctx->operation, mbedtls_cipher_get_block_size( ctx ), ctx->iv, + ctx->unprocessed_data, output ) ) ) + { + return( ret ); + } + + /* Set output size for decryption */ + if( MBEDTLS_DECRYPT == ctx->operation ) + return ctx->get_padding( output, mbedtls_cipher_get_block_size( ctx ), + olen ); + + /* Set output size for encryption */ + *olen = mbedtls_cipher_get_block_size( ctx ); + return( 0 ); + } +#else + ((void) output); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + + return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); +} + +#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) +int mbedtls_cipher_set_padding_mode( mbedtls_cipher_context_t *ctx, mbedtls_cipher_padding_t mode ) +{ + if( NULL == ctx || + MBEDTLS_MODE_CBC != ctx->cipher_info->mode ) + { + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + + switch( mode ) + { +#if defined(MBEDTLS_CIPHER_PADDING_PKCS7) + case MBEDTLS_PADDING_PKCS7: + ctx->add_padding = add_pkcs_padding; + ctx->get_padding = get_pkcs_padding; + break; +#endif +#if defined(MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS) + case MBEDTLS_PADDING_ONE_AND_ZEROS: + ctx->add_padding = add_one_and_zeros_padding; + ctx->get_padding = get_one_and_zeros_padding; + break; +#endif +#if defined(MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN) + case MBEDTLS_PADDING_ZEROS_AND_LEN: + ctx->add_padding = add_zeros_and_len_padding; + ctx->get_padding = get_zeros_and_len_padding; + break; +#endif +#if defined(MBEDTLS_CIPHER_PADDING_ZEROS) + case MBEDTLS_PADDING_ZEROS: + ctx->add_padding = add_zeros_padding; + ctx->get_padding = get_zeros_padding; + break; +#endif + case MBEDTLS_PADDING_NONE: + ctx->add_padding = NULL; + ctx->get_padding = get_no_padding; + break; + + default: + return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ + +#if defined(MBEDTLS_GCM_C) +int mbedtls_cipher_write_tag( mbedtls_cipher_context_t *ctx, + unsigned char *tag, size_t tag_len ) +{ + if( NULL == ctx || NULL == ctx->cipher_info || NULL == tag ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + if( MBEDTLS_ENCRYPT != ctx->operation ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode ) + return mbedtls_gcm_finish( (mbedtls_gcm_context *) ctx->cipher_ctx, tag, tag_len ); + + return( 0 ); +} + +int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx, + const unsigned char *tag, size_t tag_len ) +{ + int ret; + + if( NULL == ctx || NULL == ctx->cipher_info || + MBEDTLS_DECRYPT != ctx->operation ) + { + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + + if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode ) + { + unsigned char check_tag[16]; + size_t i; + int diff; + + if( tag_len > sizeof( check_tag ) ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + if( 0 != ( ret = mbedtls_gcm_finish( (mbedtls_gcm_context *) ctx->cipher_ctx, + check_tag, tag_len ) ) ) + { + return( ret ); + } + + /* Check the tag in "constant-time" */ + for( diff = 0, i = 0; i < tag_len; i++ ) + diff |= tag[i] ^ check_tag[i]; + + if( diff != 0 ) + return( MBEDTLS_ERR_CIPHER_AUTH_FAILED ); + + return( 0 ); + } + + return( 0 ); +} +#endif /* MBEDTLS_GCM_C */ + +/* + * Packet-oriented wrapper for non-AEAD modes + */ +int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen ) +{ + int ret; + size_t finish_olen; + + if( ( ret = mbedtls_cipher_set_iv( ctx, iv, iv_len ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_cipher_reset( ctx ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_cipher_update( ctx, input, ilen, output, olen ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_cipher_finish( ctx, output + *olen, &finish_olen ) ) != 0 ) + return( ret ); + + *olen += finish_olen; + + return( 0 ); +} + +#if defined(MBEDTLS_CIPHER_MODE_AEAD) +/* + * Packet-oriented encryption for AEAD modes + */ +int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, + unsigned char *tag, size_t tag_len ) +{ +#if defined(MBEDTLS_GCM_C) + if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode ) + { + *olen = ilen; + return( mbedtls_gcm_crypt_and_tag( ctx->cipher_ctx, MBEDTLS_GCM_ENCRYPT, ilen, + iv, iv_len, ad, ad_len, input, output, + tag_len, tag ) ); + } +#endif /* MBEDTLS_GCM_C */ +#if defined(MBEDTLS_CCM_C) + if( MBEDTLS_MODE_CCM == ctx->cipher_info->mode ) + { + *olen = ilen; + return( mbedtls_ccm_encrypt_and_tag( ctx->cipher_ctx, ilen, + iv, iv_len, ad, ad_len, input, output, + tag, tag_len ) ); + } +#endif /* MBEDTLS_CCM_C */ + + return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); +} + +/* + * Packet-oriented decryption for AEAD modes + */ +int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, + const unsigned char *tag, size_t tag_len ) +{ +#if defined(MBEDTLS_GCM_C) + if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode ) + { + int ret; + + *olen = ilen; + ret = mbedtls_gcm_auth_decrypt( ctx->cipher_ctx, ilen, + iv, iv_len, ad, ad_len, + tag, tag_len, input, output ); + + if( ret == MBEDTLS_ERR_GCM_AUTH_FAILED ) + ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED; + + return( ret ); + } +#endif /* MBEDTLS_GCM_C */ +#if defined(MBEDTLS_CCM_C) + if( MBEDTLS_MODE_CCM == ctx->cipher_info->mode ) + { + int ret; + + *olen = ilen; + ret = mbedtls_ccm_auth_decrypt( ctx->cipher_ctx, ilen, + iv, iv_len, ad, ad_len, + input, output, tag, tag_len ); + + if( ret == MBEDTLS_ERR_CCM_AUTH_FAILED ) + ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED; + + return( ret ); + } +#endif /* MBEDTLS_CCM_C */ + + return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); +} +#endif /* MBEDTLS_CIPHER_MODE_AEAD */ + +#endif /* MBEDTLS_CIPHER_C */ diff --git a/mbedtls/cipher_wrap.c b/mbedtls/cipher_wrap.c new file mode 100644 index 0000000..dc76af8 --- /dev/null +++ b/mbedtls/cipher_wrap.c @@ -0,0 +1,1451 @@ +/** + * \file cipher_wrap.c + * + * \brief Generic cipher wrapper for mbed TLS + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CIPHER_C) + +#include "mbedtls/cipher_internal.h" + +#if defined(MBEDTLS_AES_C) +#include "mbedtls/aes.h" +#endif + +#if defined(MBEDTLS_ARC4_C) +#include "mbedtls/arc4.h" +#endif + +#if defined(MBEDTLS_CAMELLIA_C) +#include "mbedtls/camellia.h" +#endif + +#if defined(MBEDTLS_DES_C) +#include "mbedtls/des.h" +#endif + +#if defined(MBEDTLS_BLOWFISH_C) +#include "mbedtls/blowfish.h" +#endif + +#if defined(MBEDTLS_GCM_C) +#include "mbedtls/gcm.h" +#endif + +#if defined(MBEDTLS_CCM_C) +#include "mbedtls/ccm.h" +#endif + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) +#include +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#if defined(MBEDTLS_GCM_C) +/* shared by all GCM ciphers */ +static void *gcm_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_gcm_context ) ); + + if( ctx != NULL ) + mbedtls_gcm_init( (mbedtls_gcm_context *) ctx ); + + return( ctx ); +} + +static void gcm_ctx_free( void *ctx ) +{ + mbedtls_gcm_free( ctx ); + mbedtls_free( ctx ); +} +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CCM_C) +/* shared by all CCM ciphers */ +static void *ccm_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ccm_context ) ); + + if( ctx != NULL ) + mbedtls_ccm_init( (mbedtls_ccm_context *) ctx ); + + return( ctx ); +} + +static void ccm_ctx_free( void *ctx ) +{ + mbedtls_ccm_free( ctx ); + mbedtls_free( ctx ); +} +#endif /* MBEDTLS_CCM_C */ + +#if defined(MBEDTLS_AES_C) + +static int aes_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_aes_crypt_ecb( (mbedtls_aes_context *) ctx, operation, input, output ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static int aes_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, size_t length, + unsigned char *iv, const unsigned char *input, unsigned char *output ) +{ + return mbedtls_aes_crypt_cbc( (mbedtls_aes_context *) ctx, operation, length, iv, input, + output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +static int aes_crypt_cfb128_wrap( void *ctx, mbedtls_operation_t operation, + size_t length, size_t *iv_off, unsigned char *iv, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_aes_crypt_cfb128( (mbedtls_aes_context *) ctx, operation, length, iv_off, iv, + input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +static int aes_crypt_ctr_wrap( void *ctx, size_t length, size_t *nc_off, + unsigned char *nonce_counter, unsigned char *stream_block, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_aes_crypt_ctr( (mbedtls_aes_context *) ctx, length, nc_off, nonce_counter, + stream_block, input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +static int aes_setkey_dec_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_aes_setkey_dec( (mbedtls_aes_context *) ctx, key, key_bitlen ); +} + +static int aes_setkey_enc_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_aes_setkey_enc( (mbedtls_aes_context *) ctx, key, key_bitlen ); +} + +static void * aes_ctx_alloc( void ) +{ + mbedtls_aes_context *aes = mbedtls_calloc( 1, sizeof( mbedtls_aes_context ) ); + + if( aes == NULL ) + return( NULL ); + + mbedtls_aes_init( aes ); + + return( aes ); +} + +static void aes_ctx_free( void *ctx ) +{ + mbedtls_aes_free( (mbedtls_aes_context *) ctx ); + mbedtls_free( ctx ); +} + +static const mbedtls_cipher_base_t aes_info = { + MBEDTLS_CIPHER_ID_AES, + aes_crypt_ecb_wrap, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + aes_crypt_cbc_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + aes_crypt_cfb128_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + aes_crypt_ctr_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + aes_setkey_enc_wrap, + aes_setkey_dec_wrap, + aes_ctx_alloc, + aes_ctx_free +}; + +static const mbedtls_cipher_info_t aes_128_ecb_info = { + MBEDTLS_CIPHER_AES_128_ECB, + MBEDTLS_MODE_ECB, + 128, + "AES-128-ECB", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_192_ecb_info = { + MBEDTLS_CIPHER_AES_192_ECB, + MBEDTLS_MODE_ECB, + 192, + "AES-192-ECB", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_256_ecb_info = { + MBEDTLS_CIPHER_AES_256_ECB, + MBEDTLS_MODE_ECB, + 256, + "AES-256-ECB", + 16, + 0, + 16, + &aes_info +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const mbedtls_cipher_info_t aes_128_cbc_info = { + MBEDTLS_CIPHER_AES_128_CBC, + MBEDTLS_MODE_CBC, + 128, + "AES-128-CBC", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_192_cbc_info = { + MBEDTLS_CIPHER_AES_192_CBC, + MBEDTLS_MODE_CBC, + 192, + "AES-192-CBC", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_256_cbc_info = { + MBEDTLS_CIPHER_AES_256_CBC, + MBEDTLS_MODE_CBC, + 256, + "AES-256-CBC", + 16, + 0, + 16, + &aes_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +static const mbedtls_cipher_info_t aes_128_cfb128_info = { + MBEDTLS_CIPHER_AES_128_CFB128, + MBEDTLS_MODE_CFB, + 128, + "AES-128-CFB128", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_192_cfb128_info = { + MBEDTLS_CIPHER_AES_192_CFB128, + MBEDTLS_MODE_CFB, + 192, + "AES-192-CFB128", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_256_cfb128_info = { + MBEDTLS_CIPHER_AES_256_CFB128, + MBEDTLS_MODE_CFB, + 256, + "AES-256-CFB128", + 16, + 0, + 16, + &aes_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +static const mbedtls_cipher_info_t aes_128_ctr_info = { + MBEDTLS_CIPHER_AES_128_CTR, + MBEDTLS_MODE_CTR, + 128, + "AES-128-CTR", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_192_ctr_info = { + MBEDTLS_CIPHER_AES_192_CTR, + MBEDTLS_MODE_CTR, + 192, + "AES-192-CTR", + 16, + 0, + 16, + &aes_info +}; + +static const mbedtls_cipher_info_t aes_256_ctr_info = { + MBEDTLS_CIPHER_AES_256_CTR, + MBEDTLS_MODE_CTR, + 256, + "AES-256-CTR", + 16, + 0, + 16, + &aes_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#if defined(MBEDTLS_GCM_C) +static int gcm_aes_setkey_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_gcm_setkey( (mbedtls_gcm_context *) ctx, MBEDTLS_CIPHER_ID_AES, + key, key_bitlen ); +} + +static const mbedtls_cipher_base_t gcm_aes_info = { + MBEDTLS_CIPHER_ID_AES, + NULL, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + gcm_aes_setkey_wrap, + gcm_aes_setkey_wrap, + gcm_ctx_alloc, + gcm_ctx_free, +}; + +static const mbedtls_cipher_info_t aes_128_gcm_info = { + MBEDTLS_CIPHER_AES_128_GCM, + MBEDTLS_MODE_GCM, + 128, + "AES-128-GCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &gcm_aes_info +}; + +static const mbedtls_cipher_info_t aes_192_gcm_info = { + MBEDTLS_CIPHER_AES_192_GCM, + MBEDTLS_MODE_GCM, + 192, + "AES-192-GCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &gcm_aes_info +}; + +static const mbedtls_cipher_info_t aes_256_gcm_info = { + MBEDTLS_CIPHER_AES_256_GCM, + MBEDTLS_MODE_GCM, + 256, + "AES-256-GCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &gcm_aes_info +}; +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CCM_C) +static int ccm_aes_setkey_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_ccm_setkey( (mbedtls_ccm_context *) ctx, MBEDTLS_CIPHER_ID_AES, + key, key_bitlen ); +} + +static const mbedtls_cipher_base_t ccm_aes_info = { + MBEDTLS_CIPHER_ID_AES, + NULL, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + ccm_aes_setkey_wrap, + ccm_aes_setkey_wrap, + ccm_ctx_alloc, + ccm_ctx_free, +}; + +static const mbedtls_cipher_info_t aes_128_ccm_info = { + MBEDTLS_CIPHER_AES_128_CCM, + MBEDTLS_MODE_CCM, + 128, + "AES-128-CCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &ccm_aes_info +}; + +static const mbedtls_cipher_info_t aes_192_ccm_info = { + MBEDTLS_CIPHER_AES_192_CCM, + MBEDTLS_MODE_CCM, + 192, + "AES-192-CCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &ccm_aes_info +}; + +static const mbedtls_cipher_info_t aes_256_ccm_info = { + MBEDTLS_CIPHER_AES_256_CCM, + MBEDTLS_MODE_CCM, + 256, + "AES-256-CCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &ccm_aes_info +}; +#endif /* MBEDTLS_CCM_C */ + +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) + +static int camellia_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_camellia_crypt_ecb( (mbedtls_camellia_context *) ctx, operation, input, + output ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static int camellia_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, + size_t length, unsigned char *iv, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_camellia_crypt_cbc( (mbedtls_camellia_context *) ctx, operation, length, iv, + input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +static int camellia_crypt_cfb128_wrap( void *ctx, mbedtls_operation_t operation, + size_t length, size_t *iv_off, unsigned char *iv, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_camellia_crypt_cfb128( (mbedtls_camellia_context *) ctx, operation, length, + iv_off, iv, input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +static int camellia_crypt_ctr_wrap( void *ctx, size_t length, size_t *nc_off, + unsigned char *nonce_counter, unsigned char *stream_block, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_camellia_crypt_ctr( (mbedtls_camellia_context *) ctx, length, nc_off, + nonce_counter, stream_block, input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +static int camellia_setkey_dec_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_camellia_setkey_dec( (mbedtls_camellia_context *) ctx, key, key_bitlen ); +} + +static int camellia_setkey_enc_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_camellia_setkey_enc( (mbedtls_camellia_context *) ctx, key, key_bitlen ); +} + +static void * camellia_ctx_alloc( void ) +{ + mbedtls_camellia_context *ctx; + ctx = mbedtls_calloc( 1, sizeof( mbedtls_camellia_context ) ); + + if( ctx == NULL ) + return( NULL ); + + mbedtls_camellia_init( ctx ); + + return( ctx ); +} + +static void camellia_ctx_free( void *ctx ) +{ + mbedtls_camellia_free( (mbedtls_camellia_context *) ctx ); + mbedtls_free( ctx ); +} + +static const mbedtls_cipher_base_t camellia_info = { + MBEDTLS_CIPHER_ID_CAMELLIA, + camellia_crypt_ecb_wrap, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + camellia_crypt_cbc_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + camellia_crypt_cfb128_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + camellia_crypt_ctr_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + camellia_setkey_enc_wrap, + camellia_setkey_dec_wrap, + camellia_ctx_alloc, + camellia_ctx_free +}; + +static const mbedtls_cipher_info_t camellia_128_ecb_info = { + MBEDTLS_CIPHER_CAMELLIA_128_ECB, + MBEDTLS_MODE_ECB, + 128, + "CAMELLIA-128-ECB", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_192_ecb_info = { + MBEDTLS_CIPHER_CAMELLIA_192_ECB, + MBEDTLS_MODE_ECB, + 192, + "CAMELLIA-192-ECB", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_256_ecb_info = { + MBEDTLS_CIPHER_CAMELLIA_256_ECB, + MBEDTLS_MODE_ECB, + 256, + "CAMELLIA-256-ECB", + 16, + 0, + 16, + &camellia_info +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const mbedtls_cipher_info_t camellia_128_cbc_info = { + MBEDTLS_CIPHER_CAMELLIA_128_CBC, + MBEDTLS_MODE_CBC, + 128, + "CAMELLIA-128-CBC", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_192_cbc_info = { + MBEDTLS_CIPHER_CAMELLIA_192_CBC, + MBEDTLS_MODE_CBC, + 192, + "CAMELLIA-192-CBC", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_256_cbc_info = { + MBEDTLS_CIPHER_CAMELLIA_256_CBC, + MBEDTLS_MODE_CBC, + 256, + "CAMELLIA-256-CBC", + 16, + 0, + 16, + &camellia_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +static const mbedtls_cipher_info_t camellia_128_cfb128_info = { + MBEDTLS_CIPHER_CAMELLIA_128_CFB128, + MBEDTLS_MODE_CFB, + 128, + "CAMELLIA-128-CFB128", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_192_cfb128_info = { + MBEDTLS_CIPHER_CAMELLIA_192_CFB128, + MBEDTLS_MODE_CFB, + 192, + "CAMELLIA-192-CFB128", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_256_cfb128_info = { + MBEDTLS_CIPHER_CAMELLIA_256_CFB128, + MBEDTLS_MODE_CFB, + 256, + "CAMELLIA-256-CFB128", + 16, + 0, + 16, + &camellia_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +static const mbedtls_cipher_info_t camellia_128_ctr_info = { + MBEDTLS_CIPHER_CAMELLIA_128_CTR, + MBEDTLS_MODE_CTR, + 128, + "CAMELLIA-128-CTR", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_192_ctr_info = { + MBEDTLS_CIPHER_CAMELLIA_192_CTR, + MBEDTLS_MODE_CTR, + 192, + "CAMELLIA-192-CTR", + 16, + 0, + 16, + &camellia_info +}; + +static const mbedtls_cipher_info_t camellia_256_ctr_info = { + MBEDTLS_CIPHER_CAMELLIA_256_CTR, + MBEDTLS_MODE_CTR, + 256, + "CAMELLIA-256-CTR", + 16, + 0, + 16, + &camellia_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#if defined(MBEDTLS_GCM_C) +static int gcm_camellia_setkey_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_gcm_setkey( (mbedtls_gcm_context *) ctx, MBEDTLS_CIPHER_ID_CAMELLIA, + key, key_bitlen ); +} + +static const mbedtls_cipher_base_t gcm_camellia_info = { + MBEDTLS_CIPHER_ID_CAMELLIA, + NULL, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + gcm_camellia_setkey_wrap, + gcm_camellia_setkey_wrap, + gcm_ctx_alloc, + gcm_ctx_free, +}; + +static const mbedtls_cipher_info_t camellia_128_gcm_info = { + MBEDTLS_CIPHER_CAMELLIA_128_GCM, + MBEDTLS_MODE_GCM, + 128, + "CAMELLIA-128-GCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &gcm_camellia_info +}; + +static const mbedtls_cipher_info_t camellia_192_gcm_info = { + MBEDTLS_CIPHER_CAMELLIA_192_GCM, + MBEDTLS_MODE_GCM, + 192, + "CAMELLIA-192-GCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &gcm_camellia_info +}; + +static const mbedtls_cipher_info_t camellia_256_gcm_info = { + MBEDTLS_CIPHER_CAMELLIA_256_GCM, + MBEDTLS_MODE_GCM, + 256, + "CAMELLIA-256-GCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &gcm_camellia_info +}; +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CCM_C) +static int ccm_camellia_setkey_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_ccm_setkey( (mbedtls_ccm_context *) ctx, MBEDTLS_CIPHER_ID_CAMELLIA, + key, key_bitlen ); +} + +static const mbedtls_cipher_base_t ccm_camellia_info = { + MBEDTLS_CIPHER_ID_CAMELLIA, + NULL, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + ccm_camellia_setkey_wrap, + ccm_camellia_setkey_wrap, + ccm_ctx_alloc, + ccm_ctx_free, +}; + +static const mbedtls_cipher_info_t camellia_128_ccm_info = { + MBEDTLS_CIPHER_CAMELLIA_128_CCM, + MBEDTLS_MODE_CCM, + 128, + "CAMELLIA-128-CCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &ccm_camellia_info +}; + +static const mbedtls_cipher_info_t camellia_192_ccm_info = { + MBEDTLS_CIPHER_CAMELLIA_192_CCM, + MBEDTLS_MODE_CCM, + 192, + "CAMELLIA-192-CCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &ccm_camellia_info +}; + +static const mbedtls_cipher_info_t camellia_256_ccm_info = { + MBEDTLS_CIPHER_CAMELLIA_256_CCM, + MBEDTLS_MODE_CCM, + 256, + "CAMELLIA-256-CCM", + 12, + MBEDTLS_CIPHER_VARIABLE_IV_LEN, + 16, + &ccm_camellia_info +}; +#endif /* MBEDTLS_CCM_C */ + +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) + +static int des_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation, + const unsigned char *input, unsigned char *output ) +{ + ((void) operation); + return mbedtls_des_crypt_ecb( (mbedtls_des_context *) ctx, input, output ); +} + +static int des3_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation, + const unsigned char *input, unsigned char *output ) +{ + ((void) operation); + return mbedtls_des3_crypt_ecb( (mbedtls_des3_context *) ctx, input, output ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static int des_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, size_t length, + unsigned char *iv, const unsigned char *input, unsigned char *output ) +{ + return mbedtls_des_crypt_cbc( (mbedtls_des_context *) ctx, operation, length, iv, input, + output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static int des3_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, size_t length, + unsigned char *iv, const unsigned char *input, unsigned char *output ) +{ + return mbedtls_des3_crypt_cbc( (mbedtls_des3_context *) ctx, operation, length, iv, input, + output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +static int des_setkey_dec_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + ((void) key_bitlen); + + return mbedtls_des_setkey_dec( (mbedtls_des_context *) ctx, key ); +} + +static int des_setkey_enc_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + ((void) key_bitlen); + + return mbedtls_des_setkey_enc( (mbedtls_des_context *) ctx, key ); +} + +static int des3_set2key_dec_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + ((void) key_bitlen); + + return mbedtls_des3_set2key_dec( (mbedtls_des3_context *) ctx, key ); +} + +static int des3_set2key_enc_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + ((void) key_bitlen); + + return mbedtls_des3_set2key_enc( (mbedtls_des3_context *) ctx, key ); +} + +static int des3_set3key_dec_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + ((void) key_bitlen); + + return mbedtls_des3_set3key_dec( (mbedtls_des3_context *) ctx, key ); +} + +static int des3_set3key_enc_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + ((void) key_bitlen); + + return mbedtls_des3_set3key_enc( (mbedtls_des3_context *) ctx, key ); +} + +static void * des_ctx_alloc( void ) +{ + mbedtls_des_context *des = mbedtls_calloc( 1, sizeof( mbedtls_des_context ) ); + + if( des == NULL ) + return( NULL ); + + mbedtls_des_init( des ); + + return( des ); +} + +static void des_ctx_free( void *ctx ) +{ + mbedtls_des_free( (mbedtls_des_context *) ctx ); + mbedtls_free( ctx ); +} + +static void * des3_ctx_alloc( void ) +{ + mbedtls_des3_context *des3; + des3 = mbedtls_calloc( 1, sizeof( mbedtls_des3_context ) ); + + if( des3 == NULL ) + return( NULL ); + + mbedtls_des3_init( des3 ); + + return( des3 ); +} + +static void des3_ctx_free( void *ctx ) +{ + mbedtls_des3_free( (mbedtls_des3_context *) ctx ); + mbedtls_free( ctx ); +} + +static const mbedtls_cipher_base_t des_info = { + MBEDTLS_CIPHER_ID_DES, + des_crypt_ecb_wrap, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + des_crypt_cbc_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + des_setkey_enc_wrap, + des_setkey_dec_wrap, + des_ctx_alloc, + des_ctx_free +}; + +static const mbedtls_cipher_info_t des_ecb_info = { + MBEDTLS_CIPHER_DES_ECB, + MBEDTLS_MODE_ECB, + MBEDTLS_KEY_LENGTH_DES, + "DES-ECB", + 8, + 0, + 8, + &des_info +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const mbedtls_cipher_info_t des_cbc_info = { + MBEDTLS_CIPHER_DES_CBC, + MBEDTLS_MODE_CBC, + MBEDTLS_KEY_LENGTH_DES, + "DES-CBC", + 8, + 0, + 8, + &des_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +static const mbedtls_cipher_base_t des_ede_info = { + MBEDTLS_CIPHER_ID_DES, + des3_crypt_ecb_wrap, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + des3_crypt_cbc_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + des3_set2key_enc_wrap, + des3_set2key_dec_wrap, + des3_ctx_alloc, + des3_ctx_free +}; + +static const mbedtls_cipher_info_t des_ede_ecb_info = { + MBEDTLS_CIPHER_DES_EDE_ECB, + MBEDTLS_MODE_ECB, + MBEDTLS_KEY_LENGTH_DES_EDE, + "DES-EDE-ECB", + 8, + 0, + 8, + &des_ede_info +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const mbedtls_cipher_info_t des_ede_cbc_info = { + MBEDTLS_CIPHER_DES_EDE_CBC, + MBEDTLS_MODE_CBC, + MBEDTLS_KEY_LENGTH_DES_EDE, + "DES-EDE-CBC", + 8, + 0, + 8, + &des_ede_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +static const mbedtls_cipher_base_t des_ede3_info = { + MBEDTLS_CIPHER_ID_3DES, + des3_crypt_ecb_wrap, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + des3_crypt_cbc_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + des3_set3key_enc_wrap, + des3_set3key_dec_wrap, + des3_ctx_alloc, + des3_ctx_free +}; + +static const mbedtls_cipher_info_t des_ede3_ecb_info = { + MBEDTLS_CIPHER_DES_EDE3_ECB, + MBEDTLS_MODE_ECB, + MBEDTLS_KEY_LENGTH_DES_EDE3, + "DES-EDE3-ECB", + 8, + 0, + 8, + &des_ede3_info +}; +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const mbedtls_cipher_info_t des_ede3_cbc_info = { + MBEDTLS_CIPHER_DES_EDE3_CBC, + MBEDTLS_MODE_CBC, + MBEDTLS_KEY_LENGTH_DES_EDE3, + "DES-EDE3-CBC", + 8, + 0, + 8, + &des_ede3_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_BLOWFISH_C) + +static int blowfish_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_blowfish_crypt_ecb( (mbedtls_blowfish_context *) ctx, operation, input, + output ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static int blowfish_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, + size_t length, unsigned char *iv, const unsigned char *input, + unsigned char *output ) +{ + return mbedtls_blowfish_crypt_cbc( (mbedtls_blowfish_context *) ctx, operation, length, iv, + input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +static int blowfish_crypt_cfb64_wrap( void *ctx, mbedtls_operation_t operation, + size_t length, size_t *iv_off, unsigned char *iv, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_blowfish_crypt_cfb64( (mbedtls_blowfish_context *) ctx, operation, length, + iv_off, iv, input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +static int blowfish_crypt_ctr_wrap( void *ctx, size_t length, size_t *nc_off, + unsigned char *nonce_counter, unsigned char *stream_block, + const unsigned char *input, unsigned char *output ) +{ + return mbedtls_blowfish_crypt_ctr( (mbedtls_blowfish_context *) ctx, length, nc_off, + nonce_counter, stream_block, input, output ); +} +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +static int blowfish_setkey_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + return mbedtls_blowfish_setkey( (mbedtls_blowfish_context *) ctx, key, key_bitlen ); +} + +static void * blowfish_ctx_alloc( void ) +{ + mbedtls_blowfish_context *ctx; + ctx = mbedtls_calloc( 1, sizeof( mbedtls_blowfish_context ) ); + + if( ctx == NULL ) + return( NULL ); + + mbedtls_blowfish_init( ctx ); + + return( ctx ); +} + +static void blowfish_ctx_free( void *ctx ) +{ + mbedtls_blowfish_free( (mbedtls_blowfish_context *) ctx ); + mbedtls_free( ctx ); +} + +static const mbedtls_cipher_base_t blowfish_info = { + MBEDTLS_CIPHER_ID_BLOWFISH, + blowfish_crypt_ecb_wrap, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + blowfish_crypt_cbc_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + blowfish_crypt_cfb64_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + blowfish_crypt_ctr_wrap, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + NULL, +#endif + blowfish_setkey_wrap, + blowfish_setkey_wrap, + blowfish_ctx_alloc, + blowfish_ctx_free +}; + +static const mbedtls_cipher_info_t blowfish_ecb_info = { + MBEDTLS_CIPHER_BLOWFISH_ECB, + MBEDTLS_MODE_ECB, + 128, + "BLOWFISH-ECB", + 8, + MBEDTLS_CIPHER_VARIABLE_KEY_LEN, + 8, + &blowfish_info +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const mbedtls_cipher_info_t blowfish_cbc_info = { + MBEDTLS_CIPHER_BLOWFISH_CBC, + MBEDTLS_MODE_CBC, + 128, + "BLOWFISH-CBC", + 8, + MBEDTLS_CIPHER_VARIABLE_KEY_LEN, + 8, + &blowfish_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +static const mbedtls_cipher_info_t blowfish_cfb64_info = { + MBEDTLS_CIPHER_BLOWFISH_CFB64, + MBEDTLS_MODE_CFB, + 128, + "BLOWFISH-CFB64", + 8, + MBEDTLS_CIPHER_VARIABLE_KEY_LEN, + 8, + &blowfish_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +static const mbedtls_cipher_info_t blowfish_ctr_info = { + MBEDTLS_CIPHER_BLOWFISH_CTR, + MBEDTLS_MODE_CTR, + 128, + "BLOWFISH-CTR", + 8, + MBEDTLS_CIPHER_VARIABLE_KEY_LEN, + 8, + &blowfish_info +}; +#endif /* MBEDTLS_CIPHER_MODE_CTR */ +#endif /* MBEDTLS_BLOWFISH_C */ + +#if defined(MBEDTLS_ARC4_C) +static int arc4_crypt_stream_wrap( void *ctx, size_t length, + const unsigned char *input, + unsigned char *output ) +{ + return( mbedtls_arc4_crypt( (mbedtls_arc4_context *) ctx, length, input, output ) ); +} + +static int arc4_setkey_wrap( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + /* we get key_bitlen in bits, arc4 expects it in bytes */ + if( key_bitlen % 8 != 0 ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + mbedtls_arc4_setup( (mbedtls_arc4_context *) ctx, key, key_bitlen / 8 ); + return( 0 ); +} + +static void * arc4_ctx_alloc( void ) +{ + mbedtls_arc4_context *ctx; + ctx = mbedtls_calloc( 1, sizeof( mbedtls_arc4_context ) ); + + if( ctx == NULL ) + return( NULL ); + + mbedtls_arc4_init( ctx ); + + return( ctx ); +} + +static void arc4_ctx_free( void *ctx ) +{ + mbedtls_arc4_free( (mbedtls_arc4_context *) ctx ); + mbedtls_free( ctx ); +} + +static const mbedtls_cipher_base_t arc4_base_info = { + MBEDTLS_CIPHER_ID_ARC4, + NULL, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + arc4_crypt_stream_wrap, +#endif + arc4_setkey_wrap, + arc4_setkey_wrap, + arc4_ctx_alloc, + arc4_ctx_free +}; + +static const mbedtls_cipher_info_t arc4_128_info = { + MBEDTLS_CIPHER_ARC4_128, + MBEDTLS_MODE_STREAM, + 128, + "ARC4-128", + 0, + 0, + 1, + &arc4_base_info +}; +#endif /* MBEDTLS_ARC4_C */ + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) +static int null_crypt_stream( void *ctx, size_t length, + const unsigned char *input, + unsigned char *output ) +{ + ((void) ctx); + memmove( output, input, length ); + return( 0 ); +} + +static int null_setkey( void *ctx, const unsigned char *key, + unsigned int key_bitlen ) +{ + ((void) ctx); + ((void) key); + ((void) key_bitlen); + + return( 0 ); +} + +static void * null_ctx_alloc( void ) +{ + return( (void *) 1 ); +} + +static void null_ctx_free( void *ctx ) +{ + ((void) ctx); +} + +static const mbedtls_cipher_base_t null_base_info = { + MBEDTLS_CIPHER_ID_NULL, + NULL, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + NULL, +#endif +#if defined(MBEDTLS_CIPHER_MODE_STREAM) + null_crypt_stream, +#endif + null_setkey, + null_setkey, + null_ctx_alloc, + null_ctx_free +}; + +static const mbedtls_cipher_info_t null_cipher_info = { + MBEDTLS_CIPHER_NULL, + MBEDTLS_MODE_STREAM, + 0, + "NULL", + 0, + 0, + 1, + &null_base_info +}; +#endif /* defined(MBEDTLS_CIPHER_NULL_CIPHER) */ + +const mbedtls_cipher_definition_t mbedtls_cipher_definitions[] = +{ +#if defined(MBEDTLS_AES_C) + { MBEDTLS_CIPHER_AES_128_ECB, &aes_128_ecb_info }, + { MBEDTLS_CIPHER_AES_192_ECB, &aes_192_ecb_info }, + { MBEDTLS_CIPHER_AES_256_ECB, &aes_256_ecb_info }, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_CIPHER_AES_128_CBC, &aes_128_cbc_info }, + { MBEDTLS_CIPHER_AES_192_CBC, &aes_192_cbc_info }, + { MBEDTLS_CIPHER_AES_256_CBC, &aes_256_cbc_info }, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + { MBEDTLS_CIPHER_AES_128_CFB128, &aes_128_cfb128_info }, + { MBEDTLS_CIPHER_AES_192_CFB128, &aes_192_cfb128_info }, + { MBEDTLS_CIPHER_AES_256_CFB128, &aes_256_cfb128_info }, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + { MBEDTLS_CIPHER_AES_128_CTR, &aes_128_ctr_info }, + { MBEDTLS_CIPHER_AES_192_CTR, &aes_192_ctr_info }, + { MBEDTLS_CIPHER_AES_256_CTR, &aes_256_ctr_info }, +#endif +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_CIPHER_AES_128_GCM, &aes_128_gcm_info }, + { MBEDTLS_CIPHER_AES_192_GCM, &aes_192_gcm_info }, + { MBEDTLS_CIPHER_AES_256_GCM, &aes_256_gcm_info }, +#endif +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_CIPHER_AES_128_CCM, &aes_128_ccm_info }, + { MBEDTLS_CIPHER_AES_192_CCM, &aes_192_ccm_info }, + { MBEDTLS_CIPHER_AES_256_CCM, &aes_256_ccm_info }, +#endif +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_ARC4_C) + { MBEDTLS_CIPHER_ARC4_128, &arc4_128_info }, +#endif + +#if defined(MBEDTLS_BLOWFISH_C) + { MBEDTLS_CIPHER_BLOWFISH_ECB, &blowfish_ecb_info }, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_CIPHER_BLOWFISH_CBC, &blowfish_cbc_info }, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + { MBEDTLS_CIPHER_BLOWFISH_CFB64, &blowfish_cfb64_info }, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + { MBEDTLS_CIPHER_BLOWFISH_CTR, &blowfish_ctr_info }, +#endif +#endif /* MBEDTLS_BLOWFISH_C */ + +#if defined(MBEDTLS_CAMELLIA_C) + { MBEDTLS_CIPHER_CAMELLIA_128_ECB, &camellia_128_ecb_info }, + { MBEDTLS_CIPHER_CAMELLIA_192_ECB, &camellia_192_ecb_info }, + { MBEDTLS_CIPHER_CAMELLIA_256_ECB, &camellia_256_ecb_info }, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_CIPHER_CAMELLIA_128_CBC, &camellia_128_cbc_info }, + { MBEDTLS_CIPHER_CAMELLIA_192_CBC, &camellia_192_cbc_info }, + { MBEDTLS_CIPHER_CAMELLIA_256_CBC, &camellia_256_cbc_info }, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CFB) + { MBEDTLS_CIPHER_CAMELLIA_128_CFB128, &camellia_128_cfb128_info }, + { MBEDTLS_CIPHER_CAMELLIA_192_CFB128, &camellia_192_cfb128_info }, + { MBEDTLS_CIPHER_CAMELLIA_256_CFB128, &camellia_256_cfb128_info }, +#endif +#if defined(MBEDTLS_CIPHER_MODE_CTR) + { MBEDTLS_CIPHER_CAMELLIA_128_CTR, &camellia_128_ctr_info }, + { MBEDTLS_CIPHER_CAMELLIA_192_CTR, &camellia_192_ctr_info }, + { MBEDTLS_CIPHER_CAMELLIA_256_CTR, &camellia_256_ctr_info }, +#endif +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_CIPHER_CAMELLIA_128_GCM, &camellia_128_gcm_info }, + { MBEDTLS_CIPHER_CAMELLIA_192_GCM, &camellia_192_gcm_info }, + { MBEDTLS_CIPHER_CAMELLIA_256_GCM, &camellia_256_gcm_info }, +#endif +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_CIPHER_CAMELLIA_128_CCM, &camellia_128_ccm_info }, + { MBEDTLS_CIPHER_CAMELLIA_192_CCM, &camellia_192_ccm_info }, + { MBEDTLS_CIPHER_CAMELLIA_256_CCM, &camellia_256_ccm_info }, +#endif +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) + { MBEDTLS_CIPHER_DES_ECB, &des_ecb_info }, + { MBEDTLS_CIPHER_DES_EDE_ECB, &des_ede_ecb_info }, + { MBEDTLS_CIPHER_DES_EDE3_ECB, &des_ede3_ecb_info }, +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_CIPHER_DES_CBC, &des_cbc_info }, + { MBEDTLS_CIPHER_DES_EDE_CBC, &des_ede_cbc_info }, + { MBEDTLS_CIPHER_DES_EDE3_CBC, &des_ede3_cbc_info }, +#endif +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) + { MBEDTLS_CIPHER_NULL, &null_cipher_info }, +#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ + + { MBEDTLS_CIPHER_NONE, NULL } +}; + +#define NUM_CIPHERS sizeof mbedtls_cipher_definitions / sizeof mbedtls_cipher_definitions[0] +int mbedtls_cipher_supported[NUM_CIPHERS]; + +#endif /* MBEDTLS_CIPHER_C */ diff --git a/mbedtls/cmac.c b/mbedtls/cmac.c new file mode 100644 index 0000000..ee2fe05 --- /dev/null +++ b/mbedtls/cmac.c @@ -0,0 +1,1033 @@ +/* + * \file cmac.c + * + * \brief NIST SP800-38B compliant CMAC implementation for AES and 3DES + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * References: + * + * - NIST SP 800-38B Recommendation for Block Cipher Modes of Operation: The + * CMAC Mode for Authentication + * http://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38b.pdf + * + * - RFC 4493 - The AES-CMAC Algorithm + * https://tools.ietf.org/html/rfc4493 + * + * - RFC 4615 - The Advanced Encryption Standard-Cipher-based Message + * Authentication Code-Pseudo-Random Function-128 (AES-CMAC-PRF-128) + * Algorithm for the Internet Key Exchange Protocol (IKE) + * https://tools.ietf.org/html/rfc4615 + * + * Additional test vectors: ISO/IEC 9797-1 + * + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CMAC_C) + +#include "mbedtls/cmac.h" + +#include + + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#if defined(MBEDTLS_SELF_TEST) +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C || MBEDTLS_DES_C */ +#endif /* MBEDTLS_PLATFORM_C */ + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * Multiplication by u in the Galois field of GF(2^n) + * + * As explained in NIST SP 800-38B, this can be computed: + * + * If MSB(p) = 0, then p = (p << 1) + * If MSB(p) = 1, then p = (p << 1) ^ R_n + * with R_64 = 0x1B and R_128 = 0x87 + * + * Input and output MUST NOT point to the same buffer + * Block size must be 8 byes or 16 bytes - the block sizes for DES and AES. + */ +static int cmac_multiply_by_u( unsigned char *output, + const unsigned char *input, + size_t blocksize ) +{ + const unsigned char R_128 = 0x87; + const unsigned char R_64 = 0x1B; + unsigned char R_n, mask; + unsigned char overflow = 0x00; + int i; + + if( blocksize == MBEDTLS_AES_BLOCK_SIZE ) + { + R_n = R_128; + } + else if( blocksize == MBEDTLS_DES3_BLOCK_SIZE ) + { + R_n = R_64; + } + else + { + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + + for( i = blocksize - 1; i >= 0; i-- ) + { + output[i] = input[i] << 1 | overflow; + overflow = input[i] >> 7; + } + + /* mask = ( input[0] >> 7 ) ? 0xff : 0x00 + * using bit operations to avoid branches */ + + /* MSVC has a warning about unary minus on unsigned, but this is + * well-defined and precisely what we want to do here */ +#if defined(_MSC_VER) +#pragma warning( push ) +#pragma warning( disable : 4146 ) +#endif + mask = - ( input[0] >> 7 ); +#if defined(_MSC_VER) +#pragma warning( pop ) +#endif + + output[ blocksize - 1 ] ^= R_n & mask; + + return( 0 ); +} + +/* + * Generate subkeys + * + * - as specified by RFC 4493, section 2.3 Subkey Generation Algorithm + */ +static int cmac_generate_subkeys( mbedtls_cipher_context_t *ctx, + unsigned char* K1, unsigned char* K2 ) +{ + int ret; + unsigned char L[MBEDTLS_CIPHER_BLKSIZE_MAX]; + size_t olen, block_size; + + mbedtls_zeroize( L, sizeof( L ) ); + + block_size = ctx->cipher_info->block_size; + + /* Calculate Ek(0) */ + if( ( ret = mbedtls_cipher_update( ctx, L, block_size, L, &olen ) ) != 0 ) + goto exit; + + /* + * Generate K1 and K2 + */ + if( ( ret = cmac_multiply_by_u( K1, L , block_size ) ) != 0 ) + goto exit; + + if( ( ret = cmac_multiply_by_u( K2, K1 , block_size ) ) != 0 ) + goto exit; + +exit: + mbedtls_zeroize( L, sizeof( L ) ); + + return( ret ); +} + +static void cmac_xor_block( unsigned char *output, const unsigned char *input1, + const unsigned char *input2, + const size_t block_size ) +{ + size_t index; + + for( index = 0; index < block_size; index++ ) + output[ index ] = input1[ index ] ^ input2[ index ]; +} + +/* + * Create padded last block from (partial) last block. + * + * We can't use the padding option from the cipher layer, as it only works for + * CBC and we use ECB mode, and anyway we need to XOR K1 or K2 in addition. + */ +static void cmac_pad( unsigned char padded_block[MBEDTLS_CIPHER_BLKSIZE_MAX], + size_t padded_block_len, + const unsigned char *last_block, + size_t last_block_len ) +{ + size_t j; + + for( j = 0; j < padded_block_len; j++ ) + { + if( j < last_block_len ) + padded_block[j] = last_block[j]; + else if( j == last_block_len ) + padded_block[j] = 0x80; + else + padded_block[j] = 0x00; + } +} + +int mbedtls_cipher_cmac_starts( mbedtls_cipher_context_t *ctx, + const unsigned char *key, size_t keybits ) +{ + mbedtls_cipher_type_t type; + mbedtls_cmac_context_t *cmac_ctx; + int retval; + + if( ctx == NULL || ctx->cipher_info == NULL || key == NULL ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + if( ( retval = mbedtls_cipher_setkey( ctx, key, keybits, + MBEDTLS_ENCRYPT ) ) != 0 ) + return( retval ); + + type = ctx->cipher_info->type; + + switch( type ) + { + case MBEDTLS_CIPHER_AES_128_ECB: + case MBEDTLS_CIPHER_AES_192_ECB: + case MBEDTLS_CIPHER_AES_256_ECB: + case MBEDTLS_CIPHER_DES_EDE3_ECB: + break; + default: + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + } + + /* Allocated and initialise in the cipher context memory for the CMAC + * context */ + cmac_ctx = mbedtls_calloc( 1, sizeof( mbedtls_cmac_context_t ) ); + if( cmac_ctx == NULL ) + return( MBEDTLS_ERR_CIPHER_ALLOC_FAILED ); + + ctx->cmac_ctx = cmac_ctx; + + mbedtls_zeroize( cmac_ctx->state, sizeof( cmac_ctx->state ) ); + + return 0; +} + +int mbedtls_cipher_cmac_update( mbedtls_cipher_context_t *ctx, + const unsigned char *input, size_t ilen ) +{ + mbedtls_cmac_context_t* cmac_ctx; + unsigned char *state; + int n, j, ret = 0; + size_t olen, block_size; + + if( ctx == NULL || ctx->cipher_info == NULL || input == NULL || + ctx->cmac_ctx == NULL ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + cmac_ctx = ctx->cmac_ctx; + block_size = ctx->cipher_info->block_size; + state = ctx->cmac_ctx->state; + + /* Is there data still to process from the last call, that's greater in + * size than a block? */ + if( cmac_ctx->unprocessed_len > 0 && + ilen > block_size - cmac_ctx->unprocessed_len ) + { + memcpy( &cmac_ctx->unprocessed_block[cmac_ctx->unprocessed_len], + input, + block_size - cmac_ctx->unprocessed_len ); + + cmac_xor_block( state, cmac_ctx->unprocessed_block, state, block_size ); + + if( ( ret = mbedtls_cipher_update( ctx, state, block_size, state, + &olen ) ) != 0 ) + { + goto exit; + } + + input += block_size - cmac_ctx->unprocessed_len; + ilen -= block_size - cmac_ctx->unprocessed_len; + cmac_ctx->unprocessed_len = 0; + } + + /* n is the number of blocks including any final partial block */ + n = ( ilen + block_size - 1 ) / block_size; + + /* Iterate across the input data in block sized chunks */ + for( j = 0; j < n - 1; j++ ) + { + cmac_xor_block( state, input, state, block_size ); + + if( ( ret = mbedtls_cipher_update( ctx, state, block_size, state, + &olen ) ) != 0 ) + goto exit; + + ilen -= block_size; + input += block_size; + } + + /* If there is data left over that wasn't aligned to a block */ + if( ilen > 0 ) + { + memcpy( &cmac_ctx->unprocessed_block[cmac_ctx->unprocessed_len], + input, + ilen ); + cmac_ctx->unprocessed_len += ilen; + } + +exit: + return( ret ); +} + +int mbedtls_cipher_cmac_finish( mbedtls_cipher_context_t *ctx, + unsigned char *output ) +{ + mbedtls_cmac_context_t* cmac_ctx; + unsigned char *state, *last_block; + unsigned char K1[MBEDTLS_CIPHER_BLKSIZE_MAX]; + unsigned char K2[MBEDTLS_CIPHER_BLKSIZE_MAX]; + unsigned char M_last[MBEDTLS_CIPHER_BLKSIZE_MAX]; + int ret; + size_t olen, block_size; + + if( ctx == NULL || ctx->cipher_info == NULL || ctx->cmac_ctx == NULL || + output == NULL ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + cmac_ctx = ctx->cmac_ctx; + block_size = ctx->cipher_info->block_size; + state = cmac_ctx->state; + + mbedtls_zeroize( K1, sizeof( K1 ) ); + mbedtls_zeroize( K2, sizeof( K2 ) ); + cmac_generate_subkeys( ctx, K1, K2 ); + + last_block = cmac_ctx->unprocessed_block; + + /* Calculate last block */ + if( cmac_ctx->unprocessed_len < block_size ) + { + cmac_pad( M_last, block_size, last_block, cmac_ctx->unprocessed_len ); + cmac_xor_block( M_last, M_last, K2, block_size ); + } + else + { + /* Last block is complete block */ + cmac_xor_block( M_last, last_block, K1, block_size ); + } + + + cmac_xor_block( state, M_last, state, block_size ); + if( ( ret = mbedtls_cipher_update( ctx, state, block_size, state, + &olen ) ) != 0 ) + { + goto exit; + } + + memcpy( output, state, block_size ); + +exit: + /* Wipe the generated keys on the stack, and any other transients to avoid + * side channel leakage */ + mbedtls_zeroize( K1, sizeof( K1 ) ); + mbedtls_zeroize( K2, sizeof( K2 ) ); + + cmac_ctx->unprocessed_len = 0; + mbedtls_zeroize( cmac_ctx->unprocessed_block, + sizeof( cmac_ctx->unprocessed_block ) ); + + mbedtls_zeroize( state, MBEDTLS_CIPHER_BLKSIZE_MAX ); + return( ret ); +} + +int mbedtls_cipher_cmac_reset( mbedtls_cipher_context_t *ctx ) +{ + mbedtls_cmac_context_t* cmac_ctx; + + if( ctx == NULL || ctx->cipher_info == NULL || ctx->cmac_ctx == NULL ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + cmac_ctx = ctx->cmac_ctx; + + /* Reset the internal state */ + cmac_ctx->unprocessed_len = 0; + mbedtls_zeroize( cmac_ctx->unprocessed_block, + sizeof( cmac_ctx->unprocessed_block ) ); + mbedtls_zeroize( cmac_ctx->state, + sizeof( cmac_ctx->state ) ); + + return( 0 ); +} + +int mbedtls_cipher_cmac( const mbedtls_cipher_info_t *cipher_info, + const unsigned char *key, size_t keylen, + const unsigned char *input, size_t ilen, + unsigned char *output ) +{ + mbedtls_cipher_context_t ctx; + int ret; + + if( cipher_info == NULL || key == NULL || input == NULL || output == NULL ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + mbedtls_cipher_init( &ctx ); + + if( ( ret = mbedtls_cipher_setup( &ctx, cipher_info ) ) != 0 ) + goto exit; + + ret = mbedtls_cipher_cmac_starts( &ctx, key, keylen ); + if( ret != 0 ) + goto exit; + + ret = mbedtls_cipher_cmac_update( &ctx, input, ilen ); + if( ret != 0 ) + goto exit; + + ret = mbedtls_cipher_cmac_finish( &ctx, output ); + +exit: + mbedtls_cipher_free( &ctx ); + + return( ret ); +} + +#if defined(MBEDTLS_AES_C) +/* + * Implementation of AES-CMAC-PRF-128 defined in RFC 4615 + */ +int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_length, + const unsigned char *input, size_t in_len, + unsigned char *output ) +{ + int ret; + const mbedtls_cipher_info_t *cipher_info; + unsigned char zero_key[MBEDTLS_AES_BLOCK_SIZE]; + unsigned char int_key[MBEDTLS_AES_BLOCK_SIZE]; + + if( key == NULL || input == NULL || output == NULL ) + return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); + + cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_AES_128_ECB ); + if( cipher_info == NULL ) + { + /* Failing at this point must be due to a build issue */ + ret = MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE; + goto exit; + } + + if( key_length == MBEDTLS_AES_BLOCK_SIZE ) + { + /* Use key as is */ + memcpy( int_key, key, MBEDTLS_AES_BLOCK_SIZE ); + } + else + { + memset( zero_key, 0, MBEDTLS_AES_BLOCK_SIZE ); + + ret = mbedtls_cipher_cmac( cipher_info, zero_key, 128, key, + key_length, int_key ); + if( ret != 0 ) + goto exit; + } + + ret = mbedtls_cipher_cmac( cipher_info, int_key, 128, input, in_len, + output ); + +exit: + mbedtls_zeroize( int_key, sizeof( int_key ) ); + + return( ret ); +} +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_SELF_TEST) +/* + * CMAC test data from SP800-38B Appendix D.1 (corrected) + * http://csrc.nist.gov/publications/nistpubs/800-38B/Updated_CMAC_Examples.pdf + * + * AES-CMAC-PRF-128 test data from RFC 4615 + * https://tools.ietf.org/html/rfc4615#page-4 + */ + +#define NB_CMAC_TESTS_PER_KEY 4 +#define NB_PRF_TESTS 3 + +#if defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) +/* All CMAC test inputs are truncated from the same 64 byte buffer. */ +static const unsigned char test_message[] = { + 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, + 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, + 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, + 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, + 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, + 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef, + 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, + 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 +}; +#endif /* MBEDTLS_AES_C || MBEDTLS_DES_C */ + +#if defined(MBEDTLS_AES_C) +/* Truncation point of message for AES CMAC tests */ +static const unsigned int aes_message_lengths[NB_CMAC_TESTS_PER_KEY] = { + 0, + 16, + 40, + 64 +}; + +/* AES 128 CMAC Test Data */ +static const unsigned char aes_128_key[16] = { + 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, + 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c +}; +static const unsigned char aes_128_subkeys[2][MBEDTLS_AES_BLOCK_SIZE] = { + { + 0xfb, 0xee, 0xd6, 0x18, 0x35, 0x71, 0x33, 0x66, + 0x7c, 0x85, 0xe0, 0x8f, 0x72, 0x36, 0xa8, 0xde + }, + { + 0xf7, 0xdd, 0xac, 0x30, 0x6a, 0xe2, 0x66, 0xcc, + 0xf9, 0x0b, 0xc1, 0x1e, 0xe4, 0x6d, 0x51, 0x3b + } +}; +static const unsigned char aes_128_expected_result[NB_CMAC_TESTS_PER_KEY][MBEDTLS_AES_BLOCK_SIZE] = { + { + 0xbb, 0x1d, 0x69, 0x29, 0xe9, 0x59, 0x37, 0x28, + 0x7f, 0xa3, 0x7d, 0x12, 0x9b, 0x75, 0x67, 0x46 + }, + { + 0x07, 0x0a, 0x16, 0xb4, 0x6b, 0x4d, 0x41, 0x44, + 0xf7, 0x9b, 0xdd, 0x9d, 0xd0, 0x4a, 0x28, 0x7c + }, + { + 0xdf, 0xa6, 0x67, 0x47, 0xde, 0x9a, 0xe6, 0x30, + 0x30, 0xca, 0x32, 0x61, 0x14, 0x97, 0xc8, 0x27 + }, + { + 0x51, 0xf0, 0xbe, 0xbf, 0x7e, 0x3b, 0x9d, 0x92, + 0xfc, 0x49, 0x74, 0x17, 0x79, 0x36, 0x3c, 0xfe + } +}; + +/* AES 192 CMAC Test Data */ +static const unsigned char aes_192_key[24] = { + 0x8e, 0x73, 0xb0, 0xf7, 0xda, 0x0e, 0x64, 0x52, + 0xc8, 0x10, 0xf3, 0x2b, 0x80, 0x90, 0x79, 0xe5, + 0x62, 0xf8, 0xea, 0xd2, 0x52, 0x2c, 0x6b, 0x7b +}; +static const unsigned char aes_192_subkeys[2][MBEDTLS_AES_BLOCK_SIZE] = { + { + 0x44, 0x8a, 0x5b, 0x1c, 0x93, 0x51, 0x4b, 0x27, + 0x3e, 0xe6, 0x43, 0x9d, 0xd4, 0xda, 0xa2, 0x96 + }, + { + 0x89, 0x14, 0xb6, 0x39, 0x26, 0xa2, 0x96, 0x4e, + 0x7d, 0xcc, 0x87, 0x3b, 0xa9, 0xb5, 0x45, 0x2c + } +}; +static const unsigned char aes_192_expected_result[NB_CMAC_TESTS_PER_KEY][MBEDTLS_AES_BLOCK_SIZE] = { + { + 0xd1, 0x7d, 0xdf, 0x46, 0xad, 0xaa, 0xcd, 0xe5, + 0x31, 0xca, 0xc4, 0x83, 0xde, 0x7a, 0x93, 0x67 + }, + { + 0x9e, 0x99, 0xa7, 0xbf, 0x31, 0xe7, 0x10, 0x90, + 0x06, 0x62, 0xf6, 0x5e, 0x61, 0x7c, 0x51, 0x84 + }, + { + 0x8a, 0x1d, 0xe5, 0xbe, 0x2e, 0xb3, 0x1a, 0xad, + 0x08, 0x9a, 0x82, 0xe6, 0xee, 0x90, 0x8b, 0x0e + }, + { + 0xa1, 0xd5, 0xdf, 0x0e, 0xed, 0x79, 0x0f, 0x79, + 0x4d, 0x77, 0x58, 0x96, 0x59, 0xf3, 0x9a, 0x11 + } +}; + +/* AES 256 CMAC Test Data */ +static const unsigned char aes_256_key[32] = { + 0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe, + 0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81, + 0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7, + 0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4 +}; +static const unsigned char aes_256_subkeys[2][MBEDTLS_AES_BLOCK_SIZE] = { + { + 0xca, 0xd1, 0xed, 0x03, 0x29, 0x9e, 0xed, 0xac, + 0x2e, 0x9a, 0x99, 0x80, 0x86, 0x21, 0x50, 0x2f + }, + { + 0x95, 0xa3, 0xda, 0x06, 0x53, 0x3d, 0xdb, 0x58, + 0x5d, 0x35, 0x33, 0x01, 0x0c, 0x42, 0xa0, 0xd9 + } +}; +static const unsigned char aes_256_expected_result[NB_CMAC_TESTS_PER_KEY][MBEDTLS_AES_BLOCK_SIZE] = { + { + 0x02, 0x89, 0x62, 0xf6, 0x1b, 0x7b, 0xf8, 0x9e, + 0xfc, 0x6b, 0x55, 0x1f, 0x46, 0x67, 0xd9, 0x83 + }, + { + 0x28, 0xa7, 0x02, 0x3f, 0x45, 0x2e, 0x8f, 0x82, + 0xbd, 0x4b, 0xf2, 0x8d, 0x8c, 0x37, 0xc3, 0x5c + }, + { + 0xaa, 0xf3, 0xd8, 0xf1, 0xde, 0x56, 0x40, 0xc2, + 0x32, 0xf5, 0xb1, 0x69, 0xb9, 0xc9, 0x11, 0xe6 + }, + { + 0xe1, 0x99, 0x21, 0x90, 0x54, 0x9f, 0x6e, 0xd5, + 0x69, 0x6a, 0x2c, 0x05, 0x6c, 0x31, 0x54, 0x10 + } +}; +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_DES_C) +/* Truncation point of message for 3DES CMAC tests */ +static const unsigned int des3_message_lengths[NB_CMAC_TESTS_PER_KEY] = { + 0, + 8, + 20, + 32 +}; + +/* 3DES 2 Key CMAC Test Data */ +static const unsigned char des3_2key_key[24] = { + 0x4c, 0xf1, 0x51, 0x34, 0xa2, 0x85, 0x0d, 0xd5, + 0x8a, 0x3d, 0x10, 0xba, 0x80, 0x57, 0x0d, 0x38, + 0x4c, 0xf1, 0x51, 0x34, 0xa2, 0x85, 0x0d, 0xd5 +}; +static const unsigned char des3_2key_subkeys[2][8] = { + { + 0x8e, 0xcf, 0x37, 0x3e, 0xd7, 0x1a, 0xfa, 0xef + }, + { + 0x1d, 0x9e, 0x6e, 0x7d, 0xae, 0x35, 0xf5, 0xc5 + } +}; +static const unsigned char des3_2key_expected_result[NB_CMAC_TESTS_PER_KEY][MBEDTLS_DES3_BLOCK_SIZE] = { + { + 0xbd, 0x2e, 0xbf, 0x9a, 0x3b, 0xa0, 0x03, 0x61 + }, + { + 0x4f, 0xf2, 0xab, 0x81, 0x3c, 0x53, 0xce, 0x83 + }, + { + 0x62, 0xdd, 0x1b, 0x47, 0x19, 0x02, 0xbd, 0x4e + }, + { + 0x31, 0xb1, 0xe4, 0x31, 0xda, 0xbc, 0x4e, 0xb8 + } +}; + +/* 3DES 3 Key CMAC Test Data */ +static const unsigned char des3_3key_key[24] = { + 0x8a, 0xa8, 0x3b, 0xf8, 0xcb, 0xda, 0x10, 0x62, + 0x0b, 0xc1, 0xbf, 0x19, 0xfb, 0xb6, 0xcd, 0x58, + 0xbc, 0x31, 0x3d, 0x4a, 0x37, 0x1c, 0xa8, 0xb5 +}; +static const unsigned char des3_3key_subkeys[2][8] = { + { + 0x91, 0x98, 0xe9, 0xd3, 0x14, 0xe6, 0x53, 0x5f + }, + { + 0x23, 0x31, 0xd3, 0xa6, 0x29, 0xcc, 0xa6, 0xa5 + } +}; +static const unsigned char des3_3key_expected_result[NB_CMAC_TESTS_PER_KEY][MBEDTLS_DES3_BLOCK_SIZE] = { + { + 0xb7, 0xa6, 0x88, 0xe1, 0x22, 0xff, 0xaf, 0x95 + }, + { + 0x8e, 0x8f, 0x29, 0x31, 0x36, 0x28, 0x37, 0x97 + }, + { + 0x74, 0x3d, 0xdb, 0xe0, 0xce, 0x2d, 0xc2, 0xed + }, + { + 0x33, 0xe6, 0xb1, 0x09, 0x24, 0x00, 0xea, 0xe5 + } +}; + +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_AES_C) +/* AES AES-CMAC-PRF-128 Test Data */ +static const unsigned char PRFK[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0xed, 0xcb +}; + +/* Sizes in bytes */ +static const size_t PRFKlen[NB_PRF_TESTS] = { + 18, + 16, + 10 +}; + +/* PRF M */ +static const unsigned char PRFM[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13 +}; + +static const unsigned char PRFT[NB_PRF_TESTS][16] = { + { + 0x84, 0xa3, 0x48, 0xa4, 0xa4, 0x5d, 0x23, 0x5b, + 0xab, 0xff, 0xfc, 0x0d, 0x2b, 0x4d, 0xa0, 0x9a + }, + { + 0x98, 0x0a, 0xe8, 0x7b, 0x5f, 0x4c, 0x9c, 0x52, + 0x14, 0xf5, 0xb6, 0xa8, 0x45, 0x5e, 0x4c, 0x2d + }, + { + 0x29, 0x0d, 0x9e, 0x11, 0x2e, 0xdb, 0x09, 0xee, + 0x14, 0x1f, 0xcf, 0x64, 0xc0, 0xb7, 0x2f, 0x3d + } +}; +#endif /* MBEDTLS_AES_C */ + +static int cmac_test_subkeys( int verbose, + const char* testname, + const unsigned char* key, + int keybits, + const unsigned char* subkeys, + mbedtls_cipher_type_t cipher_type, + int block_size, + int num_tests ) +{ + int i, ret; + mbedtls_cipher_context_t ctx; + const mbedtls_cipher_info_t *cipher_info; + unsigned char K1[MBEDTLS_CIPHER_BLKSIZE_MAX]; + unsigned char K2[MBEDTLS_CIPHER_BLKSIZE_MAX]; + + cipher_info = mbedtls_cipher_info_from_type( cipher_type ); + if( cipher_info == NULL ) + { + /* Failing at this point must be due to a build issue */ + return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); + } + + for( i = 0; i < num_tests; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " %s CMAC subkey #%u: ", testname, i + 1 ); + + mbedtls_cipher_init( &ctx ); + + if( ( ret = mbedtls_cipher_setup( &ctx, cipher_info ) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "test execution failed\n" ); + + goto cleanup; + } + + if( ( ret = mbedtls_cipher_setkey( &ctx, key, keybits, + MBEDTLS_ENCRYPT ) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "test execution failed\n" ); + + goto cleanup; + } + + ret = cmac_generate_subkeys( &ctx, K1, K2 ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + goto cleanup; + } + + if( ( ret = memcmp( K1, subkeys, block_size ) ) != 0 || + ( ret = memcmp( K2, &subkeys[block_size], block_size ) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + goto cleanup; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + mbedtls_cipher_free( &ctx ); + } + + goto exit; + +cleanup: + mbedtls_cipher_free( &ctx ); + +exit: + return( ret ); +} + +static int cmac_test_wth_cipher( int verbose, + const char* testname, + const unsigned char* key, + int keybits, + const unsigned char* messages, + const unsigned int message_lengths[4], + const unsigned char* expected_result, + mbedtls_cipher_type_t cipher_type, + int block_size, + int num_tests ) +{ + const mbedtls_cipher_info_t *cipher_info; + int i, ret; + unsigned char output[MBEDTLS_CIPHER_BLKSIZE_MAX]; + + cipher_info = mbedtls_cipher_info_from_type( cipher_type ); + if( cipher_info == NULL ) + { + /* Failing at this point must be due to a build issue */ + ret = MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE; + goto exit; + } + + for( i = 0; i < num_tests; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " %s CMAC #%u: ", testname, i + 1 ); + + if( ( ret = mbedtls_cipher_cmac( cipher_info, key, keybits, messages, + message_lengths[i], output ) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + goto exit; + } + + if( ( ret = memcmp( output, &expected_result[i * block_size], block_size ) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + +exit: + return( ret ); +} + +#if defined(MBEDTLS_AES_C) +static int test_aes128_cmac_prf( int verbose ) +{ + int i; + int ret; + unsigned char output[MBEDTLS_AES_BLOCK_SIZE]; + + for( i = 0; i < NB_PRF_TESTS; i++ ) + { + mbedtls_printf( " AES CMAC 128 PRF #%u: ", i ); + ret = mbedtls_aes_cmac_prf_128( PRFK, PRFKlen[i], PRFM, 20, output ); + if( ret != 0 || + memcmp( output, PRFT[i], MBEDTLS_AES_BLOCK_SIZE ) != 0 ) + { + + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( ret ); + } + else if( verbose != 0 ) + { + mbedtls_printf( "passed\n" ); + } + } + return( ret ); +} +#endif /* MBEDTLS_AES_C */ + +int mbedtls_cmac_self_test( int verbose ) +{ + int ret; + +#if defined(MBEDTLS_AES_C) + /* AES-128 */ + if( ( ret = cmac_test_subkeys( verbose, + "AES 128", + aes_128_key, + 128, + (const unsigned char*)aes_128_subkeys, + MBEDTLS_CIPHER_AES_128_ECB, + MBEDTLS_AES_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + if( ( ret = cmac_test_wth_cipher( verbose, + "AES 128", + aes_128_key, + 128, + test_message, + aes_message_lengths, + (const unsigned char*)aes_128_expected_result, + MBEDTLS_CIPHER_AES_128_ECB, + MBEDTLS_AES_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + /* AES-192 */ + if( ( ret = cmac_test_subkeys( verbose, + "AES 192", + aes_192_key, + 192, + (const unsigned char*)aes_192_subkeys, + MBEDTLS_CIPHER_AES_192_ECB, + MBEDTLS_AES_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + if( ( ret = cmac_test_wth_cipher( verbose, + "AES 192", + aes_192_key, + 192, + test_message, + aes_message_lengths, + (const unsigned char*)aes_192_expected_result, + MBEDTLS_CIPHER_AES_192_ECB, + MBEDTLS_AES_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + /* AES-256 */ + if( ( ret = cmac_test_subkeys( verbose, + "AES 256", + aes_256_key, + 256, + (const unsigned char*)aes_256_subkeys, + MBEDTLS_CIPHER_AES_256_ECB, + MBEDTLS_AES_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + if( ( ret = cmac_test_wth_cipher ( verbose, + "AES 256", + aes_256_key, + 256, + test_message, + aes_message_lengths, + (const unsigned char*)aes_256_expected_result, + MBEDTLS_CIPHER_AES_256_ECB, + MBEDTLS_AES_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_DES_C) + /* 3DES 2 key */ + if( ( ret = cmac_test_subkeys( verbose, + "3DES 2 key", + des3_2key_key, + 192, + (const unsigned char*)des3_2key_subkeys, + MBEDTLS_CIPHER_DES_EDE3_ECB, + MBEDTLS_DES3_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + if( ( ret = cmac_test_wth_cipher( verbose, + "3DES 2 key", + des3_2key_key, + 192, + test_message, + des3_message_lengths, + (const unsigned char*)des3_2key_expected_result, + MBEDTLS_CIPHER_DES_EDE3_ECB, + MBEDTLS_DES3_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + /* 3DES 3 key */ + if( ( ret = cmac_test_subkeys( verbose, + "3DES 3 key", + des3_3key_key, + 192, + (const unsigned char*)des3_3key_subkeys, + MBEDTLS_CIPHER_DES_EDE3_ECB, + MBEDTLS_DES3_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } + + if( ( ret = cmac_test_wth_cipher( verbose, + "3DES 3 key", + des3_3key_key, + 192, + test_message, + des3_message_lengths, + (const unsigned char*)des3_3key_expected_result, + MBEDTLS_CIPHER_DES_EDE3_ECB, + MBEDTLS_DES3_BLOCK_SIZE, + NB_CMAC_TESTS_PER_KEY ) ) != 0 ) + { + return( ret ); + } +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_AES_C) + if( ( ret = test_aes128_cmac_prf( verbose ) ) != 0 ) + return( ret ); +#endif /* MBEDTLS_AES_C */ + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_CMAC_C */ diff --git a/mbedtls/ctr_drbg.c b/mbedtls/ctr_drbg.c new file mode 100644 index 0000000..386f8ad --- /dev/null +++ b/mbedtls/ctr_drbg.c @@ -0,0 +1,593 @@ +/* + * CTR_DRBG implementation based on AES-256 (NIST SP 800-90) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The NIST SP 800-90 DRBGs are described in the following publucation. + * + * http://csrc.nist.gov/publications/nistpubs/800-90/SP800-90revised_March2007.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CTR_DRBG_C) + +#include "mbedtls/ctr_drbg.h" + +#include + +#if defined(MBEDTLS_FS_IO) +#include +#endif + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * CTR_DRBG context initialization + */ +void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_ctr_drbg_context ) ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif +} + +/* + * Non-public function wrapped by mbedtls_ctr_drbg_seed(). Necessary to allow + * NIST tests to succeed (which require known length fixed entropy) + */ +int mbedtls_ctr_drbg_seed_entropy_len( + mbedtls_ctr_drbg_context *ctx, + int (*f_entropy)(void *, unsigned char *, size_t), + void *p_entropy, + const unsigned char *custom, + size_t len, + size_t entropy_len ) +{ + int ret; + unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE]; + + memset( key, 0, MBEDTLS_CTR_DRBG_KEYSIZE ); + + mbedtls_aes_init( &ctx->aes_ctx ); + + ctx->f_entropy = f_entropy; + ctx->p_entropy = p_entropy; + + ctx->entropy_len = entropy_len; + ctx->reseed_interval = MBEDTLS_CTR_DRBG_RESEED_INTERVAL; + + /* + * Initialize with an empty key + */ + mbedtls_aes_setkey_enc( &ctx->aes_ctx, key, MBEDTLS_CTR_DRBG_KEYBITS ); + + if( ( ret = mbedtls_ctr_drbg_reseed( ctx, custom, len ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +int mbedtls_ctr_drbg_seed( mbedtls_ctr_drbg_context *ctx, + int (*f_entropy)(void *, unsigned char *, size_t), + void *p_entropy, + const unsigned char *custom, + size_t len ) +{ + return( mbedtls_ctr_drbg_seed_entropy_len( ctx, f_entropy, p_entropy, custom, len, + MBEDTLS_CTR_DRBG_ENTROPY_LEN ) ); +} + +void mbedtls_ctr_drbg_free( mbedtls_ctr_drbg_context *ctx ) +{ + if( ctx == NULL ) + return; + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &ctx->mutex ); +#endif + mbedtls_aes_free( &ctx->aes_ctx ); + mbedtls_zeroize( ctx, sizeof( mbedtls_ctr_drbg_context ) ); +} + +void mbedtls_ctr_drbg_set_prediction_resistance( mbedtls_ctr_drbg_context *ctx, int resistance ) +{ + ctx->prediction_resistance = resistance; +} + +void mbedtls_ctr_drbg_set_entropy_len( mbedtls_ctr_drbg_context *ctx, size_t len ) +{ + ctx->entropy_len = len; +} + +void mbedtls_ctr_drbg_set_reseed_interval( mbedtls_ctr_drbg_context *ctx, int interval ) +{ + ctx->reseed_interval = interval; +} + +static int block_cipher_df( unsigned char *output, + const unsigned char *data, size_t data_len ) +{ + unsigned char buf[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + MBEDTLS_CTR_DRBG_BLOCKSIZE + 16]; + unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN]; + unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE]; + unsigned char chain[MBEDTLS_CTR_DRBG_BLOCKSIZE]; + unsigned char *p, *iv; + mbedtls_aes_context aes_ctx; + + int i, j; + size_t buf_len, use_len; + + if( data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT ) + return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG ); + + memset( buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + MBEDTLS_CTR_DRBG_BLOCKSIZE + 16 ); + mbedtls_aes_init( &aes_ctx ); + + /* + * Construct IV (16 bytes) and S in buffer + * IV = Counter (in 32-bits) padded to 16 with zeroes + * S = Length input string (in 32-bits) || Length of output (in 32-bits) || + * data || 0x80 + * (Total is padded to a multiple of 16-bytes with zeroes) + */ + p = buf + MBEDTLS_CTR_DRBG_BLOCKSIZE; + *p++ = ( data_len >> 24 ) & 0xff; + *p++ = ( data_len >> 16 ) & 0xff; + *p++ = ( data_len >> 8 ) & 0xff; + *p++ = ( data_len ) & 0xff; + p += 3; + *p++ = MBEDTLS_CTR_DRBG_SEEDLEN; + memcpy( p, data, data_len ); + p[data_len] = 0x80; + + buf_len = MBEDTLS_CTR_DRBG_BLOCKSIZE + 8 + data_len + 1; + + for( i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++ ) + key[i] = i; + + mbedtls_aes_setkey_enc( &aes_ctx, key, MBEDTLS_CTR_DRBG_KEYBITS ); + + /* + * Reduce data to MBEDTLS_CTR_DRBG_SEEDLEN bytes of data + */ + for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE ) + { + p = buf; + memset( chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE ); + use_len = buf_len; + + while( use_len > 0 ) + { + for( i = 0; i < MBEDTLS_CTR_DRBG_BLOCKSIZE; i++ ) + chain[i] ^= p[i]; + p += MBEDTLS_CTR_DRBG_BLOCKSIZE; + use_len -= ( use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE ) ? + MBEDTLS_CTR_DRBG_BLOCKSIZE : use_len; + + mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT, chain, chain ); + } + + memcpy( tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE ); + + /* + * Update IV + */ + buf[3]++; + } + + /* + * Do final encryption with reduced data + */ + mbedtls_aes_setkey_enc( &aes_ctx, tmp, MBEDTLS_CTR_DRBG_KEYBITS ); + iv = tmp + MBEDTLS_CTR_DRBG_KEYSIZE; + p = output; + + for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE ) + { + mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); + memcpy( p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE ); + p += MBEDTLS_CTR_DRBG_BLOCKSIZE; + } + + mbedtls_aes_free( &aes_ctx ); + + return( 0 ); +} + +static int ctr_drbg_update_internal( mbedtls_ctr_drbg_context *ctx, + const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN] ) +{ + unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN]; + unsigned char *p = tmp; + int i, j; + + memset( tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN ); + + for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE ) + { + /* + * Increase counter + */ + for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- ) + if( ++ctx->counter[i - 1] != 0 ) + break; + + /* + * Crypt counter block + */ + mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT, ctx->counter, p ); + + p += MBEDTLS_CTR_DRBG_BLOCKSIZE; + } + + for( i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++ ) + tmp[i] ^= data[i]; + + /* + * Update key and counter + */ + mbedtls_aes_setkey_enc( &ctx->aes_ctx, tmp, MBEDTLS_CTR_DRBG_KEYBITS ); + memcpy( ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE, MBEDTLS_CTR_DRBG_BLOCKSIZE ); + + return( 0 ); +} + +void mbedtls_ctr_drbg_update( mbedtls_ctr_drbg_context *ctx, + const unsigned char *additional, size_t add_len ) +{ + unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN]; + + if( add_len > 0 ) + { + /* MAX_INPUT would be more logical here, but we have to match + * block_cipher_df()'s limits since we can't propagate errors */ + if( add_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT ) + add_len = MBEDTLS_CTR_DRBG_MAX_SEED_INPUT; + + block_cipher_df( add_input, additional, add_len ); + ctr_drbg_update_internal( ctx, add_input ); + } +} + +int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx, + const unsigned char *additional, size_t len ) +{ + unsigned char seed[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT]; + size_t seedlen = 0; + + if( ctx->entropy_len + len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT ) + return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG ); + + memset( seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT ); + + /* + * Gather entropy_len bytes of entropy to seed state + */ + if( 0 != ctx->f_entropy( ctx->p_entropy, seed, + ctx->entropy_len ) ) + { + return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED ); + } + + seedlen += ctx->entropy_len; + + /* + * Add additional data + */ + if( additional && len ) + { + memcpy( seed + seedlen, additional, len ); + seedlen += len; + } + + /* + * Reduce to 384 bits + */ + block_cipher_df( seed, seed, seedlen ); + + /* + * Update state + */ + ctr_drbg_update_internal( ctx, seed ); + ctx->reseed_counter = 1; + + return( 0 ); +} + +int mbedtls_ctr_drbg_random_with_add( void *p_rng, + unsigned char *output, size_t output_len, + const unsigned char *additional, size_t add_len ) +{ + int ret = 0; + mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng; + unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN]; + unsigned char *p = output; + unsigned char tmp[MBEDTLS_CTR_DRBG_BLOCKSIZE]; + int i; + size_t use_len; + + if( output_len > MBEDTLS_CTR_DRBG_MAX_REQUEST ) + return( MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG ); + + if( add_len > MBEDTLS_CTR_DRBG_MAX_INPUT ) + return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG ); + + memset( add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN ); + + if( ctx->reseed_counter > ctx->reseed_interval || + ctx->prediction_resistance ) + { + if( ( ret = mbedtls_ctr_drbg_reseed( ctx, additional, add_len ) ) != 0 ) + return( ret ); + + add_len = 0; + } + + if( add_len > 0 ) + { + block_cipher_df( add_input, additional, add_len ); + ctr_drbg_update_internal( ctx, add_input ); + } + + while( output_len > 0 ) + { + /* + * Increase counter + */ + for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- ) + if( ++ctx->counter[i - 1] != 0 ) + break; + + /* + * Crypt counter block + */ + mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT, ctx->counter, tmp ); + + use_len = ( output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE ) ? MBEDTLS_CTR_DRBG_BLOCKSIZE : + output_len; + /* + * Copy random block to destination + */ + memcpy( p, tmp, use_len ); + p += use_len; + output_len -= use_len; + } + + ctr_drbg_update_internal( ctx, add_input ); + + ctx->reseed_counter++; + + return( 0 ); +} + +int mbedtls_ctr_drbg_random( void *p_rng, unsigned char *output, size_t output_len ) +{ + int ret; + mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng; + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + ret = mbedtls_ctr_drbg_random_with_add( ctx, output, output_len, NULL, 0 ); + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +#if defined(MBEDTLS_FS_IO) +int mbedtls_ctr_drbg_write_seed_file( mbedtls_ctr_drbg_context *ctx, const char *path ) +{ + int ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR; + FILE *f; + unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ]; + + if( ( f = fopen( path, "wb" ) ) == NULL ) + return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR ); + + if( ( ret = mbedtls_ctr_drbg_random( ctx, buf, MBEDTLS_CTR_DRBG_MAX_INPUT ) ) != 0 ) + goto exit; + + if( fwrite( buf, 1, MBEDTLS_CTR_DRBG_MAX_INPUT, f ) != MBEDTLS_CTR_DRBG_MAX_INPUT ) + { + ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR; + goto exit; + } + + ret = 0; + +exit: + fclose( f ); + return( ret ); +} + +int mbedtls_ctr_drbg_update_seed_file( mbedtls_ctr_drbg_context *ctx, const char *path ) +{ + FILE *f; + size_t n; + unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ]; + + if( ( f = fopen( path, "rb" ) ) == NULL ) + return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR ); + + fseek( f, 0, SEEK_END ); + n = (size_t) ftell( f ); + fseek( f, 0, SEEK_SET ); + + if( n > MBEDTLS_CTR_DRBG_MAX_INPUT ) + { + fclose( f ); + return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG ); + } + + if( fread( buf, 1, n, f ) != n ) + { + fclose( f ); + return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR ); + } + + fclose( f ); + + mbedtls_ctr_drbg_update( ctx, buf, n ); + + return( mbedtls_ctr_drbg_write_seed_file( ctx, path ) ); +} +#endif /* MBEDTLS_FS_IO */ + +#if defined(MBEDTLS_SELF_TEST) + +static const unsigned char entropy_source_pr[96] = + { 0xc1, 0x80, 0x81, 0xa6, 0x5d, 0x44, 0x02, 0x16, + 0x19, 0xb3, 0xf1, 0x80, 0xb1, 0xc9, 0x20, 0x02, + 0x6a, 0x54, 0x6f, 0x0c, 0x70, 0x81, 0x49, 0x8b, + 0x6e, 0xa6, 0x62, 0x52, 0x6d, 0x51, 0xb1, 0xcb, + 0x58, 0x3b, 0xfa, 0xd5, 0x37, 0x5f, 0xfb, 0xc9, + 0xff, 0x46, 0xd2, 0x19, 0xc7, 0x22, 0x3e, 0x95, + 0x45, 0x9d, 0x82, 0xe1, 0xe7, 0x22, 0x9f, 0x63, + 0x31, 0x69, 0xd2, 0x6b, 0x57, 0x47, 0x4f, 0xa3, + 0x37, 0xc9, 0x98, 0x1c, 0x0b, 0xfb, 0x91, 0x31, + 0x4d, 0x55, 0xb9, 0xe9, 0x1c, 0x5a, 0x5e, 0xe4, + 0x93, 0x92, 0xcf, 0xc5, 0x23, 0x12, 0xd5, 0x56, + 0x2c, 0x4a, 0x6e, 0xff, 0xdc, 0x10, 0xd0, 0x68 }; + +static const unsigned char entropy_source_nopr[64] = + { 0x5a, 0x19, 0x4d, 0x5e, 0x2b, 0x31, 0x58, 0x14, + 0x54, 0xde, 0xf6, 0x75, 0xfb, 0x79, 0x58, 0xfe, + 0xc7, 0xdb, 0x87, 0x3e, 0x56, 0x89, 0xfc, 0x9d, + 0x03, 0x21, 0x7c, 0x68, 0xd8, 0x03, 0x38, 0x20, + 0xf9, 0xe6, 0x5e, 0x04, 0xd8, 0x56, 0xf3, 0xa9, + 0xc4, 0x4a, 0x4c, 0xbd, 0xc1, 0xd0, 0x08, 0x46, + 0xf5, 0x98, 0x3d, 0x77, 0x1c, 0x1b, 0x13, 0x7e, + 0x4e, 0x0f, 0x9d, 0x8e, 0xf4, 0x09, 0xf9, 0x2e }; + +static const unsigned char nonce_pers_pr[16] = + { 0xd2, 0x54, 0xfc, 0xff, 0x02, 0x1e, 0x69, 0xd2, + 0x29, 0xc9, 0xcf, 0xad, 0x85, 0xfa, 0x48, 0x6c }; + +static const unsigned char nonce_pers_nopr[16] = + { 0x1b, 0x54, 0xb8, 0xff, 0x06, 0x42, 0xbf, 0xf5, + 0x21, 0xf1, 0x5c, 0x1c, 0x0b, 0x66, 0x5f, 0x3f }; + +static const unsigned char result_pr[16] = + { 0x34, 0x01, 0x16, 0x56, 0xb4, 0x29, 0x00, 0x8f, + 0x35, 0x63, 0xec, 0xb5, 0xf2, 0x59, 0x07, 0x23 }; + +static const unsigned char result_nopr[16] = + { 0xa0, 0x54, 0x30, 0x3d, 0x8a, 0x7e, 0xa9, 0x88, + 0x9d, 0x90, 0x3e, 0x07, 0x7c, 0x6f, 0x21, 0x8f }; + +static size_t test_offset; +static int ctr_drbg_self_test_entropy( void *data, unsigned char *buf, + size_t len ) +{ + const unsigned char *p = data; + memcpy( buf, p + test_offset, len ); + test_offset += len; + return( 0 ); +} + +#define CHK( c ) if( (c) != 0 ) \ + { \ + if( verbose != 0 ) \ + mbedtls_printf( "failed\n" ); \ + return( 1 ); \ + } + +/* + * Checkup routine + */ +int mbedtls_ctr_drbg_self_test( int verbose ) +{ + mbedtls_ctr_drbg_context ctx; + unsigned char buf[16]; + + mbedtls_ctr_drbg_init( &ctx ); + + /* + * Based on a NIST CTR_DRBG test vector (PR = True) + */ + if( verbose != 0 ) + mbedtls_printf( " CTR_DRBG (PR = TRUE) : " ); + + test_offset = 0; + CHK( mbedtls_ctr_drbg_seed_entropy_len( &ctx, ctr_drbg_self_test_entropy, + (void *) entropy_source_pr, nonce_pers_pr, 16, 32 ) ); + mbedtls_ctr_drbg_set_prediction_resistance( &ctx, MBEDTLS_CTR_DRBG_PR_ON ); + CHK( mbedtls_ctr_drbg_random( &ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE ) ); + CHK( mbedtls_ctr_drbg_random( &ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE ) ); + CHK( memcmp( buf, result_pr, MBEDTLS_CTR_DRBG_BLOCKSIZE ) ); + + mbedtls_ctr_drbg_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + /* + * Based on a NIST CTR_DRBG test vector (PR = FALSE) + */ + if( verbose != 0 ) + mbedtls_printf( " CTR_DRBG (PR = FALSE): " ); + + mbedtls_ctr_drbg_init( &ctx ); + + test_offset = 0; + CHK( mbedtls_ctr_drbg_seed_entropy_len( &ctx, ctr_drbg_self_test_entropy, + (void *) entropy_source_nopr, nonce_pers_nopr, 16, 32 ) ); + CHK( mbedtls_ctr_drbg_random( &ctx, buf, 16 ) ); + CHK( mbedtls_ctr_drbg_reseed( &ctx, NULL, 0 ) ); + CHK( mbedtls_ctr_drbg_random( &ctx, buf, 16 ) ); + CHK( memcmp( buf, result_nopr, 16 ) ); + + mbedtls_ctr_drbg_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_CTR_DRBG_C */ diff --git a/mbedtls/debug.c b/mbedtls/debug.c new file mode 100644 index 0000000..a9cd814 --- /dev/null +++ b/mbedtls/debug.c @@ -0,0 +1,368 @@ +/* + * Debugging routines + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_DEBUG_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#define mbedtls_time_t time_t +#define mbedtls_snprintf snprintf +#endif + +#include "mbedtls/debug.h" + +#include +#include +#include + +#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +#define DEBUG_BUF_SIZE 512 + +static int debug_threshold = 0; + +void mbedtls_debug_set_threshold( int threshold ) +{ + debug_threshold = threshold; +} + +/* + * All calls to f_dbg must be made via this function + */ +static inline void debug_send_line( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *str ) +{ + /* + * If in a threaded environment, we need a thread identifier. + * Since there is no portable way to get one, use the address of the ssl + * context instead, as it shouldn't be shared between threads. + */ +#if defined(MBEDTLS_THREADING_C) + char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */ + mbedtls_snprintf( idstr, sizeof( idstr ), "%p: %s", ssl, str ); + ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, idstr ); +#else + ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); +#endif +} + +void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *format, ... ) +{ + va_list argp; + char str[DEBUG_BUF_SIZE]; + int ret; + + if( NULL == ssl || NULL == ssl->conf || NULL == ssl->conf->f_dbg || level > debug_threshold ) + return; + + va_start( argp, format ); +#if defined(_WIN32) +#if defined(_TRUNCATE) + ret = _vsnprintf_s( str, DEBUG_BUF_SIZE, _TRUNCATE, format, argp ); +#else + ret = _vsnprintf( str, DEBUG_BUF_SIZE, format, argp ); + if( ret < 0 || (size_t) ret == DEBUG_BUF_SIZE ) + { + str[DEBUG_BUF_SIZE-1] = '\0'; + ret = -1; + } +#endif +#else + ret = vsnprintf( str, DEBUG_BUF_SIZE, format, argp ); +#endif + va_end( argp ); + + if( ret >= 0 && ret < DEBUG_BUF_SIZE - 1 ) + { + str[ret] = '\n'; + str[ret + 1] = '\0'; + } + + debug_send_line( ssl, level, file, line, str ); +} + +void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, int ret ) +{ + char str[DEBUG_BUF_SIZE]; + + if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || level > debug_threshold ) + return; + + /* + * With non-blocking I/O and examples that just retry immediately, + * the logs would be quickly flooded with WANT_READ, so ignore that. + * Don't ignore WANT_WRITE however, since is is usually rare. + */ + if( ret == MBEDTLS_ERR_SSL_WANT_READ ) + return; + + mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)\n", + text, ret, -ret ); + + debug_send_line( ssl, level, file, line, str ); +} + +void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, const char *text, + const unsigned char *buf, size_t len ) +{ + char str[DEBUG_BUF_SIZE]; + char txt[17]; + size_t i, idx = 0; + + if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || level > debug_threshold ) + return; + + mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)\n", + text, (unsigned int) len ); + + debug_send_line( ssl, level, file, line, str ); + + idx = 0; + memset( txt, 0, sizeof( txt ) ); + for( i = 0; i < len; i++ ) + { + if( i >= 4096 ) + break; + + if( i % 16 == 0 ) + { + if( i > 0 ) + { + mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt ); + debug_send_line( ssl, level, file, line, str ); + + idx = 0; + memset( txt, 0, sizeof( txt ) ); + } + + idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, "%04x: ", + (unsigned int) i ); + + } + + idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", + (unsigned int) buf[i] ); + txt[i % 16] = ( buf[i] > 31 && buf[i] < 127 ) ? buf[i] : '.' ; + } + + if( len > 0 ) + { + for( /* i = i */; i % 16 != 0; i++ ) + idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " " ); + + mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt ); + debug_send_line( ssl, level, file, line, str ); + } +} + +#if defined(MBEDTLS_ECP_C) +void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_ecp_point *X ) +{ + char str[DEBUG_BUF_SIZE]; + + if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || level > debug_threshold ) + return; + + mbedtls_snprintf( str, sizeof( str ), "%s(X)", text ); + mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->X ); + + mbedtls_snprintf( str, sizeof( str ), "%s(Y)", text ); + mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->Y ); +} +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_BIGNUM_C) +void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_mpi *X ) +{ + char str[DEBUG_BUF_SIZE]; + int j, k, zeros = 1; + size_t i, n, idx = 0; + + if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || X == NULL || level > debug_threshold ) + return; + + for( n = X->n - 1; n > 0; n-- ) + if( X->p[n] != 0 ) + break; + + for( j = ( sizeof(mbedtls_mpi_uint) << 3 ) - 1; j >= 0; j-- ) + if( ( ( X->p[n] >> j ) & 1 ) != 0 ) + break; + + mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n", + text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) ); + + debug_send_line( ssl, level, file, line, str ); + + idx = 0; + for( i = n + 1, j = 0; i > 0; i-- ) + { + if( zeros && X->p[i - 1] == 0 ) + continue; + + for( k = sizeof( mbedtls_mpi_uint ) - 1; k >= 0; k-- ) + { + if( zeros && ( ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ) == 0 ) + continue; + else + zeros = 0; + + if( j % 16 == 0 ) + { + if( j > 0 ) + { + mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); + debug_send_line( ssl, level, file, line, str ); + idx = 0; + } + } + + idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", (unsigned int) + ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ); + + j++; + } + + } + + if( zeros == 1 ) + idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" ); + + mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); + debug_send_line( ssl, level, file, line, str ); +} +#endif /* MBEDTLS_BIGNUM_C */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +static void debug_print_pk( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_pk_context *pk ) +{ + size_t i; + mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS]; + char name[16]; + + memset( items, 0, sizeof( items ) ); + + if( mbedtls_pk_debug( pk, items ) != 0 ) + { + debug_send_line( ssl, level, file, line, + "invalid PK context\n" ); + return; + } + + for( i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++ ) + { + if( items[i].type == MBEDTLS_PK_DEBUG_NONE ) + return; + + mbedtls_snprintf( name, sizeof( name ), "%s%s", text, items[i].name ); + name[sizeof( name ) - 1] = '\0'; + + if( items[i].type == MBEDTLS_PK_DEBUG_MPI ) + mbedtls_debug_print_mpi( ssl, level, file, line, name, items[i].value ); + else +#if defined(MBEDTLS_ECP_C) + if( items[i].type == MBEDTLS_PK_DEBUG_ECP ) + mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value ); + else +#endif + debug_send_line( ssl, level, file, line, + "should not happen\n" ); + } +} + +static void debug_print_line_by_line( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, const char *text ) +{ + char str[DEBUG_BUF_SIZE]; + const char *start, *cur; + + start = text; + for( cur = text; *cur != '\0'; cur++ ) + { + if( *cur == '\n' ) + { + size_t len = cur - start + 1; + if( len > DEBUG_BUF_SIZE - 1 ) + len = DEBUG_BUF_SIZE - 1; + + memcpy( str, start, len ); + str[len] = '\0'; + + debug_send_line( ssl, level, file, line, str ); + + start = cur + 1; + } + } +} + +void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_x509_crt *crt ) +{ + char str[DEBUG_BUF_SIZE]; + int i = 0; + + if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || crt == NULL || level > debug_threshold ) + return; + + while( crt != NULL ) + { + char buf[1024]; + + mbedtls_snprintf( str, sizeof( str ), "%s #%d:\n", text, ++i ); + debug_send_line( ssl, level, file, line, str ); + + mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt ); + debug_print_line_by_line( ssl, level, file, line, buf ); + + debug_print_pk( ssl, level, file, line, "crt->", &crt->pk ); + + crt = crt->next; + } +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#endif /* MBEDTLS_DEBUG_C */ diff --git a/mbedtls/des.c b/mbedtls/des.c new file mode 100644 index 0000000..09f95cf --- /dev/null +++ b/mbedtls/des.c @@ -0,0 +1,1061 @@ +/* + * FIPS-46-3 compliant Triple-DES implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * DES, on which TDES is based, was originally designed by Horst Feistel + * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS). + * + * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_DES_C) + +#include "mbedtls/des.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_DES_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +/* + * Expanded DES S-boxes + */ +static const uint32_t SB1[64] = +{ + 0x01010400, 0x00000000, 0x00010000, 0x01010404, + 0x01010004, 0x00010404, 0x00000004, 0x00010000, + 0x00000400, 0x01010400, 0x01010404, 0x00000400, + 0x01000404, 0x01010004, 0x01000000, 0x00000004, + 0x00000404, 0x01000400, 0x01000400, 0x00010400, + 0x00010400, 0x01010000, 0x01010000, 0x01000404, + 0x00010004, 0x01000004, 0x01000004, 0x00010004, + 0x00000000, 0x00000404, 0x00010404, 0x01000000, + 0x00010000, 0x01010404, 0x00000004, 0x01010000, + 0x01010400, 0x01000000, 0x01000000, 0x00000400, + 0x01010004, 0x00010000, 0x00010400, 0x01000004, + 0x00000400, 0x00000004, 0x01000404, 0x00010404, + 0x01010404, 0x00010004, 0x01010000, 0x01000404, + 0x01000004, 0x00000404, 0x00010404, 0x01010400, + 0x00000404, 0x01000400, 0x01000400, 0x00000000, + 0x00010004, 0x00010400, 0x00000000, 0x01010004 +}; + +static const uint32_t SB2[64] = +{ + 0x80108020, 0x80008000, 0x00008000, 0x00108020, + 0x00100000, 0x00000020, 0x80100020, 0x80008020, + 0x80000020, 0x80108020, 0x80108000, 0x80000000, + 0x80008000, 0x00100000, 0x00000020, 0x80100020, + 0x00108000, 0x00100020, 0x80008020, 0x00000000, + 0x80000000, 0x00008000, 0x00108020, 0x80100000, + 0x00100020, 0x80000020, 0x00000000, 0x00108000, + 0x00008020, 0x80108000, 0x80100000, 0x00008020, + 0x00000000, 0x00108020, 0x80100020, 0x00100000, + 0x80008020, 0x80100000, 0x80108000, 0x00008000, + 0x80100000, 0x80008000, 0x00000020, 0x80108020, + 0x00108020, 0x00000020, 0x00008000, 0x80000000, + 0x00008020, 0x80108000, 0x00100000, 0x80000020, + 0x00100020, 0x80008020, 0x80000020, 0x00100020, + 0x00108000, 0x00000000, 0x80008000, 0x00008020, + 0x80000000, 0x80100020, 0x80108020, 0x00108000 +}; + +static const uint32_t SB3[64] = +{ + 0x00000208, 0x08020200, 0x00000000, 0x08020008, + 0x08000200, 0x00000000, 0x00020208, 0x08000200, + 0x00020008, 0x08000008, 0x08000008, 0x00020000, + 0x08020208, 0x00020008, 0x08020000, 0x00000208, + 0x08000000, 0x00000008, 0x08020200, 0x00000200, + 0x00020200, 0x08020000, 0x08020008, 0x00020208, + 0x08000208, 0x00020200, 0x00020000, 0x08000208, + 0x00000008, 0x08020208, 0x00000200, 0x08000000, + 0x08020200, 0x08000000, 0x00020008, 0x00000208, + 0x00020000, 0x08020200, 0x08000200, 0x00000000, + 0x00000200, 0x00020008, 0x08020208, 0x08000200, + 0x08000008, 0x00000200, 0x00000000, 0x08020008, + 0x08000208, 0x00020000, 0x08000000, 0x08020208, + 0x00000008, 0x00020208, 0x00020200, 0x08000008, + 0x08020000, 0x08000208, 0x00000208, 0x08020000, + 0x00020208, 0x00000008, 0x08020008, 0x00020200 +}; + +static const uint32_t SB4[64] = +{ + 0x00802001, 0x00002081, 0x00002081, 0x00000080, + 0x00802080, 0x00800081, 0x00800001, 0x00002001, + 0x00000000, 0x00802000, 0x00802000, 0x00802081, + 0x00000081, 0x00000000, 0x00800080, 0x00800001, + 0x00000001, 0x00002000, 0x00800000, 0x00802001, + 0x00000080, 0x00800000, 0x00002001, 0x00002080, + 0x00800081, 0x00000001, 0x00002080, 0x00800080, + 0x00002000, 0x00802080, 0x00802081, 0x00000081, + 0x00800080, 0x00800001, 0x00802000, 0x00802081, + 0x00000081, 0x00000000, 0x00000000, 0x00802000, + 0x00002080, 0x00800080, 0x00800081, 0x00000001, + 0x00802001, 0x00002081, 0x00002081, 0x00000080, + 0x00802081, 0x00000081, 0x00000001, 0x00002000, + 0x00800001, 0x00002001, 0x00802080, 0x00800081, + 0x00002001, 0x00002080, 0x00800000, 0x00802001, + 0x00000080, 0x00800000, 0x00002000, 0x00802080 +}; + +static const uint32_t SB5[64] = +{ + 0x00000100, 0x02080100, 0x02080000, 0x42000100, + 0x00080000, 0x00000100, 0x40000000, 0x02080000, + 0x40080100, 0x00080000, 0x02000100, 0x40080100, + 0x42000100, 0x42080000, 0x00080100, 0x40000000, + 0x02000000, 0x40080000, 0x40080000, 0x00000000, + 0x40000100, 0x42080100, 0x42080100, 0x02000100, + 0x42080000, 0x40000100, 0x00000000, 0x42000000, + 0x02080100, 0x02000000, 0x42000000, 0x00080100, + 0x00080000, 0x42000100, 0x00000100, 0x02000000, + 0x40000000, 0x02080000, 0x42000100, 0x40080100, + 0x02000100, 0x40000000, 0x42080000, 0x02080100, + 0x40080100, 0x00000100, 0x02000000, 0x42080000, + 0x42080100, 0x00080100, 0x42000000, 0x42080100, + 0x02080000, 0x00000000, 0x40080000, 0x42000000, + 0x00080100, 0x02000100, 0x40000100, 0x00080000, + 0x00000000, 0x40080000, 0x02080100, 0x40000100 +}; + +static const uint32_t SB6[64] = +{ + 0x20000010, 0x20400000, 0x00004000, 0x20404010, + 0x20400000, 0x00000010, 0x20404010, 0x00400000, + 0x20004000, 0x00404010, 0x00400000, 0x20000010, + 0x00400010, 0x20004000, 0x20000000, 0x00004010, + 0x00000000, 0x00400010, 0x20004010, 0x00004000, + 0x00404000, 0x20004010, 0x00000010, 0x20400010, + 0x20400010, 0x00000000, 0x00404010, 0x20404000, + 0x00004010, 0x00404000, 0x20404000, 0x20000000, + 0x20004000, 0x00000010, 0x20400010, 0x00404000, + 0x20404010, 0x00400000, 0x00004010, 0x20000010, + 0x00400000, 0x20004000, 0x20000000, 0x00004010, + 0x20000010, 0x20404010, 0x00404000, 0x20400000, + 0x00404010, 0x20404000, 0x00000000, 0x20400010, + 0x00000010, 0x00004000, 0x20400000, 0x00404010, + 0x00004000, 0x00400010, 0x20004010, 0x00000000, + 0x20404000, 0x20000000, 0x00400010, 0x20004010 +}; + +static const uint32_t SB7[64] = +{ + 0x00200000, 0x04200002, 0x04000802, 0x00000000, + 0x00000800, 0x04000802, 0x00200802, 0x04200800, + 0x04200802, 0x00200000, 0x00000000, 0x04000002, + 0x00000002, 0x04000000, 0x04200002, 0x00000802, + 0x04000800, 0x00200802, 0x00200002, 0x04000800, + 0x04000002, 0x04200000, 0x04200800, 0x00200002, + 0x04200000, 0x00000800, 0x00000802, 0x04200802, + 0x00200800, 0x00000002, 0x04000000, 0x00200800, + 0x04000000, 0x00200800, 0x00200000, 0x04000802, + 0x04000802, 0x04200002, 0x04200002, 0x00000002, + 0x00200002, 0x04000000, 0x04000800, 0x00200000, + 0x04200800, 0x00000802, 0x00200802, 0x04200800, + 0x00000802, 0x04000002, 0x04200802, 0x04200000, + 0x00200800, 0x00000000, 0x00000002, 0x04200802, + 0x00000000, 0x00200802, 0x04200000, 0x00000800, + 0x04000002, 0x04000800, 0x00000800, 0x00200002 +}; + +static const uint32_t SB8[64] = +{ + 0x10001040, 0x00001000, 0x00040000, 0x10041040, + 0x10000000, 0x10001040, 0x00000040, 0x10000000, + 0x00040040, 0x10040000, 0x10041040, 0x00041000, + 0x10041000, 0x00041040, 0x00001000, 0x00000040, + 0x10040000, 0x10000040, 0x10001000, 0x00001040, + 0x00041000, 0x00040040, 0x10040040, 0x10041000, + 0x00001040, 0x00000000, 0x00000000, 0x10040040, + 0x10000040, 0x10001000, 0x00041040, 0x00040000, + 0x00041040, 0x00040000, 0x10041000, 0x00001000, + 0x00000040, 0x10040040, 0x00001000, 0x00041040, + 0x10001000, 0x00000040, 0x10000040, 0x10040000, + 0x10040040, 0x10000000, 0x00040000, 0x10001040, + 0x00000000, 0x10041040, 0x00040040, 0x10000040, + 0x10040000, 0x10001000, 0x10001040, 0x00000000, + 0x10041040, 0x00041000, 0x00041000, 0x00001040, + 0x00001040, 0x00040040, 0x10000000, 0x10041000 +}; + +/* + * PC1: left and right halves bit-swap + */ +static const uint32_t LHs[16] = +{ + 0x00000000, 0x00000001, 0x00000100, 0x00000101, + 0x00010000, 0x00010001, 0x00010100, 0x00010101, + 0x01000000, 0x01000001, 0x01000100, 0x01000101, + 0x01010000, 0x01010001, 0x01010100, 0x01010101 +}; + +static const uint32_t RHs[16] = +{ + 0x00000000, 0x01000000, 0x00010000, 0x01010000, + 0x00000100, 0x01000100, 0x00010100, 0x01010100, + 0x00000001, 0x01000001, 0x00010001, 0x01010001, + 0x00000101, 0x01000101, 0x00010101, 0x01010101, +}; + +/* + * Initial Permutation macro + */ +#define DES_IP(X,Y) \ +{ \ + T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \ + T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \ + T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \ + T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \ + Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \ + T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \ + X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \ +} + +/* + * Final Permutation macro + */ +#define DES_FP(X,Y) \ +{ \ + X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \ + T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \ + Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \ + T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \ + T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \ + T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \ + T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \ +} + +/* + * DES round macro + */ +#define DES_ROUND(X,Y) \ +{ \ + T = *SK++ ^ X; \ + Y ^= SB8[ (T ) & 0x3F ] ^ \ + SB6[ (T >> 8) & 0x3F ] ^ \ + SB4[ (T >> 16) & 0x3F ] ^ \ + SB2[ (T >> 24) & 0x3F ]; \ + \ + T = *SK++ ^ ((X << 28) | (X >> 4)); \ + Y ^= SB7[ (T ) & 0x3F ] ^ \ + SB5[ (T >> 8) & 0x3F ] ^ \ + SB3[ (T >> 16) & 0x3F ] ^ \ + SB1[ (T >> 24) & 0x3F ]; \ +} + +#define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; } + +void mbedtls_des_init( mbedtls_des_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_des_context ) ); +} + +void mbedtls_des_free( mbedtls_des_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_des_context ) ); +} + +void mbedtls_des3_init( mbedtls_des3_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_des3_context ) ); +} + +void mbedtls_des3_free( mbedtls_des3_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_des3_context ) ); +} + +static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8, + 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44, + 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81, + 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112, + 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140, + 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168, + 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196, + 199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224, + 227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253, + 254 }; + +void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] ) +{ + int i; + + for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ ) + key[i] = odd_parity_table[key[i] / 2]; +} + +/* + * Check the given key's parity, returns 1 on failure, 0 on SUCCESS + */ +int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] ) +{ + int i; + + for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ ) + if( key[i] != odd_parity_table[key[i] / 2] ) + return( 1 ); + + return( 0 ); +} + +/* + * Table of weak and semi-weak keys + * + * Source: http://en.wikipedia.org/wiki/Weak_key + * + * Weak: + * Alternating ones + zeros (0x0101010101010101) + * Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE) + * '0xE0E0E0E0F1F1F1F1' + * '0x1F1F1F1F0E0E0E0E' + * + * Semi-weak: + * 0x011F011F010E010E and 0x1F011F010E010E01 + * 0x01E001E001F101F1 and 0xE001E001F101F101 + * 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01 + * 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E + * 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E + * 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1 + * + */ + +#define WEAK_KEY_COUNT 16 + +static const unsigned char weak_key_table[WEAK_KEY_COUNT][MBEDTLS_DES_KEY_SIZE] = +{ + { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 }, + { 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE }, + { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E }, + { 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 }, + + { 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E }, + { 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 }, + { 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 }, + { 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 }, + { 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE }, + { 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 }, + { 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 }, + { 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E }, + { 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE }, + { 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E }, + { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE }, + { 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 } +}; + +int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] ) +{ + int i; + + for( i = 0; i < WEAK_KEY_COUNT; i++ ) + if( memcmp( weak_key_table[i], key, MBEDTLS_DES_KEY_SIZE) == 0 ) + return( 1 ); + + return( 0 ); +} + +#if !defined(MBEDTLS_DES_SETKEY_ALT) +void mbedtls_des_setkey( uint32_t SK[32], const unsigned char key[MBEDTLS_DES_KEY_SIZE] ) +{ + int i; + uint32_t X, Y, T; + + GET_UINT32_BE( X, key, 0 ); + GET_UINT32_BE( Y, key, 4 ); + + /* + * Permuted Choice 1 + */ + T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4); + T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T ); + + X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2) + | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] ) + | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6) + | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4); + + Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2) + | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] ) + | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6) + | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4); + + X &= 0x0FFFFFFF; + Y &= 0x0FFFFFFF; + + /* + * calculate subkeys + */ + for( i = 0; i < 16; i++ ) + { + if( i < 2 || i == 8 || i == 15 ) + { + X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF; + Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF; + } + else + { + X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF; + Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF; + } + + *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000) + | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000) + | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000) + | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000) + | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000) + | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000) + | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400) + | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100) + | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010) + | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004) + | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001); + + *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000) + | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000) + | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000) + | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000) + | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000) + | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000) + | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000) + | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400) + | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100) + | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011) + | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002); + } +} +#endif /* !MBEDTLS_DES_SETKEY_ALT */ + +/* + * DES key schedule (56-bit, encryption) + */ +int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] ) +{ + mbedtls_des_setkey( ctx->sk, key ); + + return( 0 ); +} + +/* + * DES key schedule (56-bit, decryption) + */ +int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] ) +{ + int i; + + mbedtls_des_setkey( ctx->sk, key ); + + for( i = 0; i < 16; i += 2 ) + { + SWAP( ctx->sk[i ], ctx->sk[30 - i] ); + SWAP( ctx->sk[i + 1], ctx->sk[31 - i] ); + } + + return( 0 ); +} + +static void des3_set2key( uint32_t esk[96], + uint32_t dsk[96], + const unsigned char key[MBEDTLS_DES_KEY_SIZE*2] ) +{ + int i; + + mbedtls_des_setkey( esk, key ); + mbedtls_des_setkey( dsk + 32, key + 8 ); + + for( i = 0; i < 32; i += 2 ) + { + dsk[i ] = esk[30 - i]; + dsk[i + 1] = esk[31 - i]; + + esk[i + 32] = dsk[62 - i]; + esk[i + 33] = dsk[63 - i]; + + esk[i + 64] = esk[i ]; + esk[i + 65] = esk[i + 1]; + + dsk[i + 64] = dsk[i ]; + dsk[i + 65] = dsk[i + 1]; + } +} + +/* + * Triple-DES key schedule (112-bit, encryption) + */ +int mbedtls_des3_set2key_enc( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] ) +{ + uint32_t sk[96]; + + des3_set2key( ctx->sk, sk, key ); + mbedtls_zeroize( sk, sizeof( sk ) ); + + return( 0 ); +} + +/* + * Triple-DES key schedule (112-bit, decryption) + */ +int mbedtls_des3_set2key_dec( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] ) +{ + uint32_t sk[96]; + + des3_set2key( sk, ctx->sk, key ); + mbedtls_zeroize( sk, sizeof( sk ) ); + + return( 0 ); +} + +static void des3_set3key( uint32_t esk[96], + uint32_t dsk[96], + const unsigned char key[24] ) +{ + int i; + + mbedtls_des_setkey( esk, key ); + mbedtls_des_setkey( dsk + 32, key + 8 ); + mbedtls_des_setkey( esk + 64, key + 16 ); + + for( i = 0; i < 32; i += 2 ) + { + dsk[i ] = esk[94 - i]; + dsk[i + 1] = esk[95 - i]; + + esk[i + 32] = dsk[62 - i]; + esk[i + 33] = dsk[63 - i]; + + dsk[i + 64] = esk[30 - i]; + dsk[i + 65] = esk[31 - i]; + } +} + +/* + * Triple-DES key schedule (168-bit, encryption) + */ +int mbedtls_des3_set3key_enc( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] ) +{ + uint32_t sk[96]; + + des3_set3key( ctx->sk, sk, key ); + mbedtls_zeroize( sk, sizeof( sk ) ); + + return( 0 ); +} + +/* + * Triple-DES key schedule (168-bit, decryption) + */ +int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] ) +{ + uint32_t sk[96]; + + des3_set3key( sk, ctx->sk, key ); + mbedtls_zeroize( sk, sizeof( sk ) ); + + return( 0 ); +} + +/* + * DES-ECB block encryption/decryption + */ +#if !defined(MBEDTLS_DES_CRYPT_ECB_ALT) +int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx, + const unsigned char input[8], + unsigned char output[8] ) +{ + int i; + uint32_t X, Y, T, *SK; + + SK = ctx->sk; + + GET_UINT32_BE( X, input, 0 ); + GET_UINT32_BE( Y, input, 4 ); + + DES_IP( X, Y ); + + for( i = 0; i < 8; i++ ) + { + DES_ROUND( Y, X ); + DES_ROUND( X, Y ); + } + + DES_FP( Y, X ); + + PUT_UINT32_BE( Y, output, 0 ); + PUT_UINT32_BE( X, output, 4 ); + + return( 0 ); +} +#endif /* !MBEDTLS_DES_CRYPT_ECB_ALT */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/* + * DES-CBC buffer encryption/decryption + */ +int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx, + int mode, + size_t length, + unsigned char iv[8], + const unsigned char *input, + unsigned char *output ) +{ + int i; + unsigned char temp[8]; + + if( length % 8 ) + return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH ); + + if( mode == MBEDTLS_DES_ENCRYPT ) + { + while( length > 0 ) + { + for( i = 0; i < 8; i++ ) + output[i] = (unsigned char)( input[i] ^ iv[i] ); + + mbedtls_des_crypt_ecb( ctx, output, output ); + memcpy( iv, output, 8 ); + + input += 8; + output += 8; + length -= 8; + } + } + else /* MBEDTLS_DES_DECRYPT */ + { + while( length > 0 ) + { + memcpy( temp, input, 8 ); + mbedtls_des_crypt_ecb( ctx, input, output ); + + for( i = 0; i < 8; i++ ) + output[i] = (unsigned char)( output[i] ^ iv[i] ); + + memcpy( iv, temp, 8 ); + + input += 8; + output += 8; + length -= 8; + } + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +/* + * 3DES-ECB block encryption/decryption + */ +#if !defined(MBEDTLS_DES3_CRYPT_ECB_ALT) +int mbedtls_des3_crypt_ecb( mbedtls_des3_context *ctx, + const unsigned char input[8], + unsigned char output[8] ) +{ + int i; + uint32_t X, Y, T, *SK; + + SK = ctx->sk; + + GET_UINT32_BE( X, input, 0 ); + GET_UINT32_BE( Y, input, 4 ); + + DES_IP( X, Y ); + + for( i = 0; i < 8; i++ ) + { + DES_ROUND( Y, X ); + DES_ROUND( X, Y ); + } + + for( i = 0; i < 8; i++ ) + { + DES_ROUND( X, Y ); + DES_ROUND( Y, X ); + } + + for( i = 0; i < 8; i++ ) + { + DES_ROUND( Y, X ); + DES_ROUND( X, Y ); + } + + DES_FP( Y, X ); + + PUT_UINT32_BE( Y, output, 0 ); + PUT_UINT32_BE( X, output, 4 ); + + return( 0 ); +} +#endif /* !MBEDTLS_DES3_CRYPT_ECB_ALT */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/* + * 3DES-CBC buffer encryption/decryption + */ +int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx, + int mode, + size_t length, + unsigned char iv[8], + const unsigned char *input, + unsigned char *output ) +{ + int i; + unsigned char temp[8]; + + if( length % 8 ) + return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH ); + + if( mode == MBEDTLS_DES_ENCRYPT ) + { + while( length > 0 ) + { + for( i = 0; i < 8; i++ ) + output[i] = (unsigned char)( input[i] ^ iv[i] ); + + mbedtls_des3_crypt_ecb( ctx, output, output ); + memcpy( iv, output, 8 ); + + input += 8; + output += 8; + length -= 8; + } + } + else /* MBEDTLS_DES_DECRYPT */ + { + while( length > 0 ) + { + memcpy( temp, input, 8 ); + mbedtls_des3_crypt_ecb( ctx, input, output ); + + for( i = 0; i < 8; i++ ) + output[i] = (unsigned char)( output[i] ^ iv[i] ); + + memcpy( iv, temp, 8 ); + + input += 8; + output += 8; + length -= 8; + } + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#endif /* !MBEDTLS_DES_ALT */ + +#if defined(MBEDTLS_SELF_TEST) +/* + * DES and 3DES test vectors from: + * + * http://csrc.nist.gov/groups/STM/cavp/documents/des/tripledes-vectors.zip + */ +static const unsigned char des3_test_keys[24] = +{ + 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, + 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, + 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23 +}; + +static const unsigned char des3_test_buf[8] = +{ + 0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74 +}; + +static const unsigned char des3_test_ecb_dec[3][8] = +{ + { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D }, + { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB }, + { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A } +}; + +static const unsigned char des3_test_ecb_enc[3][8] = +{ + { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B }, + { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 }, + { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 } +}; + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +static const unsigned char des3_test_iv[8] = +{ + 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF, +}; + +static const unsigned char des3_test_cbc_dec[3][8] = +{ + { 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 }, + { 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 }, + { 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C } +}; + +static const unsigned char des3_test_cbc_enc[3][8] = +{ + { 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 }, + { 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D }, + { 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 } +}; +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +/* + * Checkup routine + */ +int mbedtls_des_self_test( int verbose ) +{ + int i, j, u, v, ret = 0; + mbedtls_des_context ctx; + mbedtls_des3_context ctx3; + unsigned char buf[8]; +#if defined(MBEDTLS_CIPHER_MODE_CBC) + unsigned char prv[8]; + unsigned char iv[8]; +#endif + + mbedtls_des_init( &ctx ); + mbedtls_des3_init( &ctx3 ); + /* + * ECB mode + */ + for( i = 0; i < 6; i++ ) + { + u = i >> 1; + v = i & 1; + + if( verbose != 0 ) + mbedtls_printf( " DES%c-ECB-%3d (%s): ", + ( u == 0 ) ? ' ' : '3', 56 + u * 56, + ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" ); + + memcpy( buf, des3_test_buf, 8 ); + + switch( i ) + { + case 0: + mbedtls_des_setkey_dec( &ctx, des3_test_keys ); + break; + + case 1: + mbedtls_des_setkey_enc( &ctx, des3_test_keys ); + break; + + case 2: + mbedtls_des3_set2key_dec( &ctx3, des3_test_keys ); + break; + + case 3: + mbedtls_des3_set2key_enc( &ctx3, des3_test_keys ); + break; + + case 4: + mbedtls_des3_set3key_dec( &ctx3, des3_test_keys ); + break; + + case 5: + mbedtls_des3_set3key_enc( &ctx3, des3_test_keys ); + break; + + default: + return( 1 ); + } + + for( j = 0; j < 10000; j++ ) + { + if( u == 0 ) + mbedtls_des_crypt_ecb( &ctx, buf, buf ); + else + mbedtls_des3_crypt_ecb( &ctx3, buf, buf ); + } + + if( ( v == MBEDTLS_DES_DECRYPT && + memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) || + ( v != MBEDTLS_DES_DECRYPT && + memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + /* + * CBC mode + */ + for( i = 0; i < 6; i++ ) + { + u = i >> 1; + v = i & 1; + + if( verbose != 0 ) + mbedtls_printf( " DES%c-CBC-%3d (%s): ", + ( u == 0 ) ? ' ' : '3', 56 + u * 56, + ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" ); + + memcpy( iv, des3_test_iv, 8 ); + memcpy( prv, des3_test_iv, 8 ); + memcpy( buf, des3_test_buf, 8 ); + + switch( i ) + { + case 0: + mbedtls_des_setkey_dec( &ctx, des3_test_keys ); + break; + + case 1: + mbedtls_des_setkey_enc( &ctx, des3_test_keys ); + break; + + case 2: + mbedtls_des3_set2key_dec( &ctx3, des3_test_keys ); + break; + + case 3: + mbedtls_des3_set2key_enc( &ctx3, des3_test_keys ); + break; + + case 4: + mbedtls_des3_set3key_dec( &ctx3, des3_test_keys ); + break; + + case 5: + mbedtls_des3_set3key_enc( &ctx3, des3_test_keys ); + break; + + default: + return( 1 ); + } + + if( v == MBEDTLS_DES_DECRYPT ) + { + for( j = 0; j < 10000; j++ ) + { + if( u == 0 ) + mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf ); + else + mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf ); + } + } + else + { + for( j = 0; j < 10000; j++ ) + { + unsigned char tmp[8]; + + if( u == 0 ) + mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf ); + else + mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf ); + + memcpy( tmp, prv, 8 ); + memcpy( prv, buf, 8 ); + memcpy( buf, tmp, 8 ); + } + + memcpy( buf, prv, 8 ); + } + + if( ( v == MBEDTLS_DES_DECRYPT && + memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) || + ( v != MBEDTLS_DES_DECRYPT && + memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +exit: + mbedtls_des_free( &ctx ); + mbedtls_des3_free( &ctx3 ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_DES_C */ diff --git a/mbedtls/dhm.c b/mbedtls/dhm.c new file mode 100644 index 0000000..a4715d1 --- /dev/null +++ b/mbedtls/dhm.c @@ -0,0 +1,627 @@ +/* + * Diffie-Hellman-Merkle key exchange + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The following sources were referenced in the design of this implementation + * of the Diffie-Hellman-Merkle algorithm: + * + * [1] Handbook of Applied Cryptography - 1997, Chapter 12 + * Menezes, van Oorschot and Vanstone + * + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_DHM_C) + +#include "mbedtls/dhm.h" + +#include + +#if defined(MBEDTLS_PEM_PARSE_C) +#include "mbedtls/pem.h" +#endif + +#if defined(MBEDTLS_ASN1_PARSE_C) +#include "mbedtls/asn1.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_printf printf +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * helper to validate the mbedtls_mpi size and import it + */ +static int dhm_read_bignum( mbedtls_mpi *X, + unsigned char **p, + const unsigned char *end ) +{ + int ret, n; + + if( end - *p < 2 ) + return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA ); + + n = ( (*p)[0] << 8 ) | (*p)[1]; + (*p) += 2; + + if( (int)( end - *p ) < n ) + return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_mpi_read_binary( X, *p, n ) ) != 0 ) + return( MBEDTLS_ERR_DHM_READ_PARAMS_FAILED + ret ); + + (*p) += n; + + return( 0 ); +} + +/* + * Verify sanity of parameter with regards to P + * + * Parameter should be: 2 <= public_param <= P - 2 + * + * For more information on the attack, see: + * http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf + * http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-2643 + */ +static int dhm_check_range( const mbedtls_mpi *param, const mbedtls_mpi *P ) +{ + mbedtls_mpi L, U; + int ret = MBEDTLS_ERR_DHM_BAD_INPUT_DATA; + + mbedtls_mpi_init( &L ); mbedtls_mpi_init( &U ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &L, 2 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &U, P, 2 ) ); + + if( mbedtls_mpi_cmp_mpi( param, &L ) >= 0 && + mbedtls_mpi_cmp_mpi( param, &U ) <= 0 ) + { + ret = 0; + } + +cleanup: + mbedtls_mpi_free( &L ); mbedtls_mpi_free( &U ); + return( ret ); +} + +void mbedtls_dhm_init( mbedtls_dhm_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_dhm_context ) ); +} + +/* + * Parse the ServerKeyExchange parameters + */ +int mbedtls_dhm_read_params( mbedtls_dhm_context *ctx, + unsigned char **p, + const unsigned char *end ) +{ + int ret; + + if( ( ret = dhm_read_bignum( &ctx->P, p, end ) ) != 0 || + ( ret = dhm_read_bignum( &ctx->G, p, end ) ) != 0 || + ( ret = dhm_read_bignum( &ctx->GY, p, end ) ) != 0 ) + return( ret ); + + if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 ) + return( ret ); + + ctx->len = mbedtls_mpi_size( &ctx->P ); + + return( 0 ); +} + +/* + * Setup and write the ServerKeyExchange parameters + */ +int mbedtls_dhm_make_params( mbedtls_dhm_context *ctx, int x_size, + unsigned char *output, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret, count = 0; + size_t n1, n2, n3; + unsigned char *p; + + if( mbedtls_mpi_cmp_int( &ctx->P, 0 ) == 0 ) + return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA ); + + /* + * Generate X as large as possible ( < P ) + */ + do + { + mbedtls_mpi_fill_random( &ctx->X, x_size, f_rng, p_rng ); + + while( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->X, 1 ) ); + + if( count++ > 10 ) + return( MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED ); + } + while( dhm_check_range( &ctx->X, &ctx->P ) != 0 ); + + /* + * Calculate GX = G^X mod P + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X, + &ctx->P , &ctx->RP ) ); + + if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 ) + return( ret ); + + /* + * export P, G, GX + */ +#define DHM_MPI_EXPORT(X,n) \ + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( X, p + 2, n ) ); \ + *p++ = (unsigned char)( n >> 8 ); \ + *p++ = (unsigned char)( n ); p += n; + + n1 = mbedtls_mpi_size( &ctx->P ); + n2 = mbedtls_mpi_size( &ctx->G ); + n3 = mbedtls_mpi_size( &ctx->GX ); + + p = output; + DHM_MPI_EXPORT( &ctx->P , n1 ); + DHM_MPI_EXPORT( &ctx->G , n2 ); + DHM_MPI_EXPORT( &ctx->GX, n3 ); + + *olen = p - output; + + ctx->len = n1; + +cleanup: + + if( ret != 0 ) + return( MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED + ret ); + + return( 0 ); +} + +/* + * Import the peer's public value G^Y + */ +int mbedtls_dhm_read_public( mbedtls_dhm_context *ctx, + const unsigned char *input, size_t ilen ) +{ + int ret; + + if( ctx == NULL || ilen < 1 || ilen > ctx->len ) + return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_mpi_read_binary( &ctx->GY, input, ilen ) ) != 0 ) + return( MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED + ret ); + + return( 0 ); +} + +/* + * Create own private value X and export G^X + */ +int mbedtls_dhm_make_public( mbedtls_dhm_context *ctx, int x_size, + unsigned char *output, size_t olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret, count = 0; + + if( ctx == NULL || olen < 1 || olen > ctx->len ) + return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA ); + + if( mbedtls_mpi_cmp_int( &ctx->P, 0 ) == 0 ) + return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA ); + + /* + * generate X and calculate GX = G^X mod P + */ + do + { + mbedtls_mpi_fill_random( &ctx->X, x_size, f_rng, p_rng ); + + while( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->X, 1 ) ); + + if( count++ > 10 ) + return( MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED ); + } + while( dhm_check_range( &ctx->X, &ctx->P ) != 0 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X, + &ctx->P , &ctx->RP ) ); + + if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 ) + return( ret ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->GX, output, olen ) ); + +cleanup: + + if( ret != 0 ) + return( MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED + ret ); + + return( 0 ); +} + +/* + * Use the blinding method and optimisation suggested in section 10 of: + * KOCHER, Paul C. Timing attacks on implementations of Diffie-Hellman, RSA, + * DSS, and other systems. In : Advances in Cryptology-CRYPTO'96. Springer + * Berlin Heidelberg, 1996. p. 104-113. + */ +static int dhm_update_blinding( mbedtls_dhm_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret, count; + + /* + * Don't use any blinding the first time a particular X is used, + * but remember it to use blinding next time. + */ + if( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->pX ) != 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &ctx->pX, &ctx->X ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->Vi, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->Vf, 1 ) ); + + return( 0 ); + } + + /* + * Ok, we need blinding. Can we re-use existing values? + * If yes, just update them by squaring them. + */ + if( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) != 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &ctx->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->P ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &ctx->Vf ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->P ) ); + + return( 0 ); + } + + /* + * We need to generate blinding values from scratch + */ + + /* Vi = random( 2, P-1 ) */ + count = 0; + do + { + mbedtls_mpi_fill_random( &ctx->Vi, mbedtls_mpi_size( &ctx->P ), f_rng, p_rng ); + + while( mbedtls_mpi_cmp_mpi( &ctx->Vi, &ctx->P ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->Vi, 1 ) ); + + if( count++ > 10 ) + return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE ); + } + while( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) <= 0 ); + + /* Vf = Vi^-X mod P */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->Vf, &ctx->Vi, &ctx->P ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->Vf, &ctx->Vf, &ctx->X, &ctx->P, &ctx->RP ) ); + +cleanup: + return( ret ); +} + +/* + * Derive and export the shared secret (G^Y)^X mod P + */ +int mbedtls_dhm_calc_secret( mbedtls_dhm_context *ctx, + unsigned char *output, size_t output_size, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_mpi GYb; + + if( ctx == NULL || output_size < ctx->len ) + return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA ); + + if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 ) + return( ret ); + + mbedtls_mpi_init( &GYb ); + + /* Blind peer's value */ + if( f_rng != NULL ) + { + MBEDTLS_MPI_CHK( dhm_update_blinding( ctx, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &GYb, &ctx->GY, &ctx->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &GYb, &GYb, &ctx->P ) ); + } + else + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &GYb, &ctx->GY ) ); + + /* Do modular exponentiation */ + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->K, &GYb, &ctx->X, + &ctx->P, &ctx->RP ) ); + + /* Unblind secret value */ + if( f_rng != NULL ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->K, &ctx->K, &ctx->Vf ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->K, &ctx->K, &ctx->P ) ); + } + + *olen = mbedtls_mpi_size( &ctx->K ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->K, output, *olen ) ); + +cleanup: + mbedtls_mpi_free( &GYb ); + + if( ret != 0 ) + return( MBEDTLS_ERR_DHM_CALC_SECRET_FAILED + ret ); + + return( 0 ); +} + +/* + * Free the components of a DHM key + */ +void mbedtls_dhm_free( mbedtls_dhm_context *ctx ) +{ + mbedtls_mpi_free( &ctx->pX); mbedtls_mpi_free( &ctx->Vf ); mbedtls_mpi_free( &ctx->Vi ); + mbedtls_mpi_free( &ctx->RP ); mbedtls_mpi_free( &ctx->K ); mbedtls_mpi_free( &ctx->GY ); + mbedtls_mpi_free( &ctx->GX ); mbedtls_mpi_free( &ctx->X ); mbedtls_mpi_free( &ctx->G ); + mbedtls_mpi_free( &ctx->P ); + + mbedtls_zeroize( ctx, sizeof( mbedtls_dhm_context ) ); +} + +#if defined(MBEDTLS_ASN1_PARSE_C) +/* + * Parse DHM parameters + */ +int mbedtls_dhm_parse_dhm( mbedtls_dhm_context *dhm, const unsigned char *dhmin, + size_t dhminlen ) +{ + int ret; + size_t len; + unsigned char *p, *end; +#if defined(MBEDTLS_PEM_PARSE_C) + mbedtls_pem_context pem; + + mbedtls_pem_init( &pem ); + + /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ + if( dhminlen == 0 || dhmin[dhminlen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN DH PARAMETERS-----", + "-----END DH PARAMETERS-----", + dhmin, NULL, 0, &dhminlen ); + + if( ret == 0 ) + { + /* + * Was PEM encoded + */ + dhminlen = pem.buflen; + } + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + goto exit; + + p = ( ret == 0 ) ? pem.buf : (unsigned char *) dhmin; +#else + p = (unsigned char *) dhmin; +#endif /* MBEDTLS_PEM_PARSE_C */ + end = p + dhminlen; + + /* + * DHParams ::= SEQUENCE { + * prime INTEGER, -- P + * generator INTEGER, -- g + * privateValueLength INTEGER OPTIONAL + * } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret; + goto exit; + } + + end = p + len; + + if( ( ret = mbedtls_asn1_get_mpi( &p, end, &dhm->P ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &dhm->G ) ) != 0 ) + { + ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret; + goto exit; + } + + if( p != end ) + { + /* This might be the optional privateValueLength. + * If so, we can cleanly discard it */ + mbedtls_mpi rec; + mbedtls_mpi_init( &rec ); + ret = mbedtls_asn1_get_mpi( &p, end, &rec ); + mbedtls_mpi_free( &rec ); + if ( ret != 0 ) + { + ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret; + goto exit; + } + if ( p != end ) + { + ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH; + goto exit; + } + } + + ret = 0; + + dhm->len = mbedtls_mpi_size( &dhm->P ); + +exit: +#if defined(MBEDTLS_PEM_PARSE_C) + mbedtls_pem_free( &pem ); +#endif + if( ret != 0 ) + mbedtls_dhm_free( dhm ); + + return( ret ); +} + +#if defined(MBEDTLS_FS_IO) +/* + * Load all data from a file into a given buffer. + * + * The file is expected to contain either PEM or DER encoded data. + * A terminating null byte is always appended. It is included in the announced + * length only if the data looks like it is PEM encoded. + */ +static int load_file( const char *path, unsigned char **buf, size_t *n ) +{ + FILE *f; + long size; + + if( ( f = fopen( path, "rb" ) ) == NULL ) + return( MBEDTLS_ERR_DHM_FILE_IO_ERROR ); + + fseek( f, 0, SEEK_END ); + if( ( size = ftell( f ) ) == -1 ) + { + fclose( f ); + return( MBEDTLS_ERR_DHM_FILE_IO_ERROR ); + } + fseek( f, 0, SEEK_SET ); + + *n = (size_t) size; + + if( *n + 1 == 0 || + ( *buf = mbedtls_calloc( 1, *n + 1 ) ) == NULL ) + { + fclose( f ); + return( MBEDTLS_ERR_DHM_ALLOC_FAILED ); + } + + if( fread( *buf, 1, *n, f ) != *n ) + { + fclose( f ); + mbedtls_free( *buf ); + return( MBEDTLS_ERR_DHM_FILE_IO_ERROR ); + } + + fclose( f ); + + (*buf)[*n] = '\0'; + + if( strstr( (const char *) *buf, "-----BEGIN " ) != NULL ) + ++*n; + + return( 0 ); +} + +/* + * Load and parse DHM parameters + */ +int mbedtls_dhm_parse_dhmfile( mbedtls_dhm_context *dhm, const char *path ) +{ + int ret; + size_t n; + unsigned char *buf; + + if( ( ret = load_file( path, &buf, &n ) ) != 0 ) + return( ret ); + + ret = mbedtls_dhm_parse_dhm( dhm, buf, n ); + + mbedtls_zeroize( buf, n ); + mbedtls_free( buf ); + + return( ret ); +} +#endif /* MBEDTLS_FS_IO */ +#endif /* MBEDTLS_ASN1_PARSE_C */ + +#if defined(MBEDTLS_SELF_TEST) + +static const char mbedtls_test_dhm_params[] = +"-----BEGIN DH PARAMETERS-----\r\n" +"MIGHAoGBAJ419DBEOgmQTzo5qXl5fQcN9TN455wkOL7052HzxxRVMyhYmwQcgJvh\r\n" +"1sa18fyfR9OiVEMYglOpkqVoGLN7qd5aQNNi5W7/C+VBdHTBJcGZJyyP5B3qcz32\r\n" +"9mLJKudlVudV0Qxk5qUJaPZ/xupz0NyoVpviuiBOI1gNi8ovSXWzAgEC\r\n" +"-----END DH PARAMETERS-----\r\n"; + +static const size_t mbedtls_test_dhm_params_len = sizeof( mbedtls_test_dhm_params ); + +/* + * Checkup routine + */ +int mbedtls_dhm_self_test( int verbose ) +{ + int ret; + mbedtls_dhm_context dhm; + + mbedtls_dhm_init( &dhm ); + + if( verbose != 0 ) + mbedtls_printf( " DHM parameter load: " ); + + if( ( ret = mbedtls_dhm_parse_dhm( &dhm, + (const unsigned char *) mbedtls_test_dhm_params, + mbedtls_test_dhm_params_len ) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n\n" ); + +exit: + mbedtls_dhm_free( &dhm ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_DHM_C */ diff --git a/mbedtls/ecdh.c b/mbedtls/ecdh.c new file mode 100644 index 0000000..c0a8147 --- /dev/null +++ b/mbedtls/ecdh.c @@ -0,0 +1,264 @@ +/* + * Elliptic curve Diffie-Hellman + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * References: + * + * SEC1 http://www.secg.org/index.php?action=secg,docs_secg + * RFC 4492 + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ECDH_C) + +#include "mbedtls/ecdh.h" + +#include + +/* + * Generate public key: simple wrapper around mbedtls_ecp_gen_keypair + */ +int mbedtls_ecdh_gen_public( mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + return mbedtls_ecp_gen_keypair( grp, d, Q, f_rng, p_rng ); +} + +/* + * Compute shared secret (SEC1 3.3.1) + */ +int mbedtls_ecdh_compute_shared( mbedtls_ecp_group *grp, mbedtls_mpi *z, + const mbedtls_ecp_point *Q, const mbedtls_mpi *d, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_ecp_point P; + + mbedtls_ecp_point_init( &P ); + + /* + * Make sure Q is a valid pubkey before using it + */ + MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, Q ) ); + + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( grp, &P, d, Q, f_rng, p_rng ) ); + + if( mbedtls_ecp_is_zero( &P ) ) + { + ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + goto cleanup; + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( z, &P.X ) ); + +cleanup: + mbedtls_ecp_point_free( &P ); + + return( ret ); +} + +/* + * Initialize context + */ +void mbedtls_ecdh_init( mbedtls_ecdh_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_ecdh_context ) ); +} + +/* + * Free context + */ +void mbedtls_ecdh_free( mbedtls_ecdh_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_ecp_group_free( &ctx->grp ); + mbedtls_ecp_point_free( &ctx->Q ); + mbedtls_ecp_point_free( &ctx->Qp ); + mbedtls_ecp_point_free( &ctx->Vi ); + mbedtls_ecp_point_free( &ctx->Vf ); + mbedtls_mpi_free( &ctx->d ); + mbedtls_mpi_free( &ctx->z ); + mbedtls_mpi_free( &ctx->_d ); +} + +/* + * Setup and write the ServerKeyExhange parameters (RFC 4492) + * struct { + * ECParameters curve_params; + * ECPoint public; + * } ServerECDHParams; + */ +int mbedtls_ecdh_make_params( mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + size_t grp_len, pt_len; + + if( ctx == NULL || ctx->grp.pbits == 0 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_ecdh_gen_public( &ctx->grp, &ctx->d, &ctx->Q, f_rng, p_rng ) ) + != 0 ) + return( ret ); + + if( ( ret = mbedtls_ecp_tls_write_group( &ctx->grp, &grp_len, buf, blen ) ) + != 0 ) + return( ret ); + + buf += grp_len; + blen -= grp_len; + + if( ( ret = mbedtls_ecp_tls_write_point( &ctx->grp, &ctx->Q, ctx->point_format, + &pt_len, buf, blen ) ) != 0 ) + return( ret ); + + *olen = grp_len + pt_len; + return( 0 ); +} + +/* + * Read the ServerKeyExhange parameters (RFC 4492) + * struct { + * ECParameters curve_params; + * ECPoint public; + * } ServerECDHParams; + */ +int mbedtls_ecdh_read_params( mbedtls_ecdh_context *ctx, + const unsigned char **buf, const unsigned char *end ) +{ + int ret; + + if( ( ret = mbedtls_ecp_tls_read_group( &ctx->grp, buf, end - *buf ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_ecp_tls_read_point( &ctx->grp, &ctx->Qp, buf, end - *buf ) ) + != 0 ) + return( ret ); + + return( 0 ); +} + +/* + * Get parameters from a keypair + */ +int mbedtls_ecdh_get_params( mbedtls_ecdh_context *ctx, const mbedtls_ecp_keypair *key, + mbedtls_ecdh_side side ) +{ + int ret; + + if( ( ret = mbedtls_ecp_group_copy( &ctx->grp, &key->grp ) ) != 0 ) + return( ret ); + + /* If it's not our key, just import the public part as Qp */ + if( side == MBEDTLS_ECDH_THEIRS ) + return( mbedtls_ecp_copy( &ctx->Qp, &key->Q ) ); + + /* Our key: import public (as Q) and private parts */ + if( side != MBEDTLS_ECDH_OURS ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_ecp_copy( &ctx->Q, &key->Q ) ) != 0 || + ( ret = mbedtls_mpi_copy( &ctx->d, &key->d ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +/* + * Setup and export the client public value + */ +int mbedtls_ecdh_make_public( mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + + if( ctx == NULL || ctx->grp.pbits == 0 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_ecdh_gen_public( &ctx->grp, &ctx->d, &ctx->Q, f_rng, p_rng ) ) + != 0 ) + return( ret ); + + return mbedtls_ecp_tls_write_point( &ctx->grp, &ctx->Q, ctx->point_format, + olen, buf, blen ); +} + +/* + * Parse and import the client's public value + */ +int mbedtls_ecdh_read_public( mbedtls_ecdh_context *ctx, + const unsigned char *buf, size_t blen ) +{ + int ret; + const unsigned char *p = buf; + + if( ctx == NULL ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_ecp_tls_read_point( &ctx->grp, &ctx->Qp, &p, blen ) ) != 0 ) + return( ret ); + + if( (size_t)( p - buf ) != blen ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + return( 0 ); +} + +/* + * Derive and export the shared secret + */ +int mbedtls_ecdh_calc_secret( mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + + if( ctx == NULL ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_ecdh_compute_shared( &ctx->grp, &ctx->z, &ctx->Qp, &ctx->d, + f_rng, p_rng ) ) != 0 ) + { + return( ret ); + } + + if( mbedtls_mpi_size( &ctx->z ) > blen ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + *olen = ctx->grp.pbits / 8 + ( ( ctx->grp.pbits % 8 ) != 0 ); + return mbedtls_mpi_write_binary( &ctx->z, buf, *olen ); +} + +#endif /* MBEDTLS_ECDH_C */ diff --git a/mbedtls/ecdsa.c b/mbedtls/ecdsa.c new file mode 100644 index 0000000..4156f3c --- /dev/null +++ b/mbedtls/ecdsa.c @@ -0,0 +1,448 @@ +/* + * Elliptic curve DSA + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * References: + * + * SEC1 http://www.secg.org/index.php?action=secg,docs_secg + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ECDSA_C) + +#include "mbedtls/ecdsa.h" +#include "mbedtls/asn1write.h" + +#include + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) +#include "mbedtls/hmac_drbg.h" +#endif + +/* + * Derive a suitable integer for group grp from a buffer of length len + * SEC1 4.1.3 step 5 aka SEC1 4.1.4 step 3 + */ +static int derive_mpi( const mbedtls_ecp_group *grp, mbedtls_mpi *x, + const unsigned char *buf, size_t blen ) +{ + int ret; + size_t n_size = ( grp->nbits + 7 ) / 8; + size_t use_size = blen > n_size ? n_size : blen; + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( x, buf, use_size ) ); + if( use_size * 8 > grp->nbits ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( x, use_size * 8 - grp->nbits ) ); + + /* While at it, reduce modulo N */ + if( mbedtls_mpi_cmp_mpi( x, &grp->N ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( x, x, &grp->N ) ); + +cleanup: + return( ret ); +} + +/* + * Compute ECDSA signature of a hashed message (SEC1 4.1.3) + * Obviously, compared to SEC1 4.1.3, we skip step 4 (hash message) + */ +int mbedtls_ecdsa_sign( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, + const mbedtls_mpi *d, const unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret, key_tries, sign_tries, blind_tries; + mbedtls_ecp_point R; + mbedtls_mpi k, e, t; + + /* Fail cleanly on curves such as Curve25519 that can't be used for ECDSA */ + if( grp->N.p == NULL ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + mbedtls_ecp_point_init( &R ); + mbedtls_mpi_init( &k ); mbedtls_mpi_init( &e ); mbedtls_mpi_init( &t ); + + sign_tries = 0; + do + { + /* + * Steps 1-3: generate a suitable ephemeral keypair + * and set r = xR mod n + */ + key_tries = 0; + do + { + MBEDTLS_MPI_CHK( mbedtls_ecp_gen_keypair( grp, &k, &R, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( r, &R.X, &grp->N ) ); + + if( key_tries++ > 10 ) + { + ret = MBEDTLS_ERR_ECP_RANDOM_FAILED; + goto cleanup; + } + } + while( mbedtls_mpi_cmp_int( r, 0 ) == 0 ); + + /* + * Step 5: derive MPI from hashed message + */ + MBEDTLS_MPI_CHK( derive_mpi( grp, &e, buf, blen ) ); + + /* + * Generate a random value to blind inv_mod in next step, + * avoiding a potential timing leak. + */ + blind_tries = 0; + do + { + size_t n_size = ( grp->nbits + 7 ) / 8; + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &t, n_size, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &t, 8 * n_size - grp->nbits ) ); + + /* See mbedtls_ecp_gen_keypair() */ + if( ++blind_tries > 30 ) + return( MBEDTLS_ERR_ECP_RANDOM_FAILED ); + } + while( mbedtls_mpi_cmp_int( &t, 1 ) < 0 || + mbedtls_mpi_cmp_mpi( &t, &grp->N ) >= 0 ); + + /* + * Step 6: compute s = (e + r * d) / k = t (e + rd) / (kt) mod n + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( s, r, d ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &e, &e, s ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &e, &e, &t ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &k, &k, &t ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( s, &k, &grp->N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( s, s, &e ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( s, s, &grp->N ) ); + + if( sign_tries++ > 10 ) + { + ret = MBEDTLS_ERR_ECP_RANDOM_FAILED; + goto cleanup; + } + } + while( mbedtls_mpi_cmp_int( s, 0 ) == 0 ); + +cleanup: + mbedtls_ecp_point_free( &R ); + mbedtls_mpi_free( &k ); mbedtls_mpi_free( &e ); mbedtls_mpi_free( &t ); + + return( ret ); +} + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) +/* + * Deterministic signature wrapper + */ +int mbedtls_ecdsa_sign_det( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, + const mbedtls_mpi *d, const unsigned char *buf, size_t blen, + mbedtls_md_type_t md_alg ) +{ + int ret; + mbedtls_hmac_drbg_context rng_ctx; + unsigned char data[2 * MBEDTLS_ECP_MAX_BYTES]; + size_t grp_len = ( grp->nbits + 7 ) / 8; + const mbedtls_md_info_t *md_info; + mbedtls_mpi h; + + if( ( md_info = mbedtls_md_info_from_type( md_alg ) ) == NULL ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &h ); + mbedtls_hmac_drbg_init( &rng_ctx ); + + /* Use private key and message hash (reduced) to initialize HMAC_DRBG */ + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( d, data, grp_len ) ); + MBEDTLS_MPI_CHK( derive_mpi( grp, &h, buf, blen ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &h, data + grp_len, grp_len ) ); + mbedtls_hmac_drbg_seed_buf( &rng_ctx, md_info, data, 2 * grp_len ); + + ret = mbedtls_ecdsa_sign( grp, r, s, d, buf, blen, + mbedtls_hmac_drbg_random, &rng_ctx ); + +cleanup: + mbedtls_hmac_drbg_free( &rng_ctx ); + mbedtls_mpi_free( &h ); + + return( ret ); +} +#endif /* MBEDTLS_ECDSA_DETERMINISTIC */ + +/* + * Verify ECDSA signature of hashed message (SEC1 4.1.4) + * Obviously, compared to SEC1 4.1.3, we skip step 2 (hash message) + */ +int mbedtls_ecdsa_verify( mbedtls_ecp_group *grp, + const unsigned char *buf, size_t blen, + const mbedtls_ecp_point *Q, const mbedtls_mpi *r, const mbedtls_mpi *s) +{ + int ret; + mbedtls_mpi e, s_inv, u1, u2; + mbedtls_ecp_point R; + + mbedtls_ecp_point_init( &R ); + mbedtls_mpi_init( &e ); mbedtls_mpi_init( &s_inv ); mbedtls_mpi_init( &u1 ); mbedtls_mpi_init( &u2 ); + + /* Fail cleanly on curves such as Curve25519 that can't be used for ECDSA */ + if( grp->N.p == NULL ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * Step 1: make sure r and s are in range 1..n-1 + */ + if( mbedtls_mpi_cmp_int( r, 1 ) < 0 || mbedtls_mpi_cmp_mpi( r, &grp->N ) >= 0 || + mbedtls_mpi_cmp_int( s, 1 ) < 0 || mbedtls_mpi_cmp_mpi( s, &grp->N ) >= 0 ) + { + ret = MBEDTLS_ERR_ECP_VERIFY_FAILED; + goto cleanup; + } + + /* + * Additional precaution: make sure Q is valid + */ + MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, Q ) ); + + /* + * Step 3: derive MPI from hashed message + */ + MBEDTLS_MPI_CHK( derive_mpi( grp, &e, buf, blen ) ); + + /* + * Step 4: u1 = e / s mod n, u2 = r / s mod n + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &s_inv, s, &grp->N ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &u1, &e, &s_inv ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &u1, &u1, &grp->N ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &u2, r, &s_inv ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &u2, &u2, &grp->N ) ); + + /* + * Step 5: R = u1 G + u2 Q + * + * Since we're not using any secret data, no need to pass a RNG to + * mbedtls_ecp_mul() for countermesures. + */ + MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( grp, &R, &u1, &grp->G, &u2, Q ) ); + + if( mbedtls_ecp_is_zero( &R ) ) + { + ret = MBEDTLS_ERR_ECP_VERIFY_FAILED; + goto cleanup; + } + + /* + * Step 6: convert xR to an integer (no-op) + * Step 7: reduce xR mod n (gives v) + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &R.X, &R.X, &grp->N ) ); + + /* + * Step 8: check if v (that is, R.X) is equal to r + */ + if( mbedtls_mpi_cmp_mpi( &R.X, r ) != 0 ) + { + ret = MBEDTLS_ERR_ECP_VERIFY_FAILED; + goto cleanup; + } + +cleanup: + mbedtls_ecp_point_free( &R ); + mbedtls_mpi_free( &e ); mbedtls_mpi_free( &s_inv ); mbedtls_mpi_free( &u1 ); mbedtls_mpi_free( &u2 ); + + return( ret ); +} + +/* + * Convert a signature (given by context) to ASN.1 + */ +static int ecdsa_signature_to_asn1( const mbedtls_mpi *r, const mbedtls_mpi *s, + unsigned char *sig, size_t *slen ) +{ + int ret; + unsigned char buf[MBEDTLS_ECDSA_MAX_LEN]; + unsigned char *p = buf + sizeof( buf ); + size_t len = 0; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &p, buf, s ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &p, buf, r ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &p, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &p, buf, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ); + + memcpy( sig, p, len ); + *slen = len; + + return( 0 ); +} + +/* + * Compute and write signature + */ +int mbedtls_ecdsa_write_signature( mbedtls_ecdsa_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hlen, + unsigned char *sig, size_t *slen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_mpi r, s; + + mbedtls_mpi_init( &r ); + mbedtls_mpi_init( &s ); + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) + (void) f_rng; + (void) p_rng; + + MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign_det( &ctx->grp, &r, &s, &ctx->d, + hash, hlen, md_alg ) ); +#else + (void) md_alg; + + MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign( &ctx->grp, &r, &s, &ctx->d, + hash, hlen, f_rng, p_rng ) ); +#endif + + MBEDTLS_MPI_CHK( ecdsa_signature_to_asn1( &r, &s, sig, slen ) ); + +cleanup: + mbedtls_mpi_free( &r ); + mbedtls_mpi_free( &s ); + + return( ret ); +} + +#if ! defined(MBEDTLS_DEPRECATED_REMOVED) && \ + defined(MBEDTLS_ECDSA_DETERMINISTIC) +int mbedtls_ecdsa_write_signature_det( mbedtls_ecdsa_context *ctx, + const unsigned char *hash, size_t hlen, + unsigned char *sig, size_t *slen, + mbedtls_md_type_t md_alg ) +{ + return( mbedtls_ecdsa_write_signature( ctx, md_alg, hash, hlen, sig, slen, + NULL, NULL ) ); +} +#endif + +/* + * Read and check signature + */ +int mbedtls_ecdsa_read_signature( mbedtls_ecdsa_context *ctx, + const unsigned char *hash, size_t hlen, + const unsigned char *sig, size_t slen ) +{ + int ret; + unsigned char *p = (unsigned char *) sig; + const unsigned char *end = sig + slen; + size_t len; + mbedtls_mpi r, s; + + mbedtls_mpi_init( &r ); + mbedtls_mpi_init( &s ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + ret += MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + goto cleanup; + } + + if( p + len != end ) + { + ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH; + goto cleanup; + } + + if( ( ret = mbedtls_asn1_get_mpi( &p, end, &r ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &s ) ) != 0 ) + { + ret += MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + goto cleanup; + } + + if( ( ret = mbedtls_ecdsa_verify( &ctx->grp, hash, hlen, + &ctx->Q, &r, &s ) ) != 0 ) + goto cleanup; + + if( p != end ) + ret = MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH; + +cleanup: + mbedtls_mpi_free( &r ); + mbedtls_mpi_free( &s ); + + return( ret ); +} + +/* + * Generate key pair + */ +int mbedtls_ecdsa_genkey( mbedtls_ecdsa_context *ctx, mbedtls_ecp_group_id gid, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + return( mbedtls_ecp_group_load( &ctx->grp, gid ) || + mbedtls_ecp_gen_keypair( &ctx->grp, &ctx->d, &ctx->Q, f_rng, p_rng ) ); +} + +/* + * Set context from an mbedtls_ecp_keypair + */ +int mbedtls_ecdsa_from_keypair( mbedtls_ecdsa_context *ctx, const mbedtls_ecp_keypair *key ) +{ + int ret; + + if( ( ret = mbedtls_ecp_group_copy( &ctx->grp, &key->grp ) ) != 0 || + ( ret = mbedtls_mpi_copy( &ctx->d, &key->d ) ) != 0 || + ( ret = mbedtls_ecp_copy( &ctx->Q, &key->Q ) ) != 0 ) + { + mbedtls_ecdsa_free( ctx ); + } + + return( ret ); +} + +/* + * Initialize context + */ +void mbedtls_ecdsa_init( mbedtls_ecdsa_context *ctx ) +{ + mbedtls_ecp_keypair_init( ctx ); +} + +/* + * Free context + */ +void mbedtls_ecdsa_free( mbedtls_ecdsa_context *ctx ) +{ + mbedtls_ecp_keypair_free( ctx ); +} + +#endif /* MBEDTLS_ECDSA_C */ diff --git a/mbedtls/ecjpake.c b/mbedtls/ecjpake.c new file mode 100644 index 0000000..1fa1c2d --- /dev/null +++ b/mbedtls/ecjpake.c @@ -0,0 +1,1103 @@ +/* + * Elliptic curve J-PAKE + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * References in the code are to the Thread v1.0 Specification, + * available to members of the Thread Group http://threadgroup.org/ + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ECJPAKE_C) + +#include "mbedtls/ecjpake.h" + +#include + +/* + * Convert a mbedtls_ecjpake_role to identifier string + */ +static const char * const ecjpake_id[] = { + "client", + "server" +}; + +#define ID_MINE ( ecjpake_id[ ctx->role ] ) +#define ID_PEER ( ecjpake_id[ 1 - ctx->role ] ) + +/* + * Initialize context + */ +void mbedtls_ecjpake_init( mbedtls_ecjpake_context *ctx ) +{ + if( ctx == NULL ) + return; + + ctx->md_info = NULL; + mbedtls_ecp_group_init( &ctx->grp ); + ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED; + + mbedtls_ecp_point_init( &ctx->Xm1 ); + mbedtls_ecp_point_init( &ctx->Xm2 ); + mbedtls_ecp_point_init( &ctx->Xp1 ); + mbedtls_ecp_point_init( &ctx->Xp2 ); + mbedtls_ecp_point_init( &ctx->Xp ); + + mbedtls_mpi_init( &ctx->xm1 ); + mbedtls_mpi_init( &ctx->xm2 ); + mbedtls_mpi_init( &ctx->s ); +} + +/* + * Free context + */ +void mbedtls_ecjpake_free( mbedtls_ecjpake_context *ctx ) +{ + if( ctx == NULL ) + return; + + ctx->md_info = NULL; + mbedtls_ecp_group_free( &ctx->grp ); + + mbedtls_ecp_point_free( &ctx->Xm1 ); + mbedtls_ecp_point_free( &ctx->Xm2 ); + mbedtls_ecp_point_free( &ctx->Xp1 ); + mbedtls_ecp_point_free( &ctx->Xp2 ); + mbedtls_ecp_point_free( &ctx->Xp ); + + mbedtls_mpi_free( &ctx->xm1 ); + mbedtls_mpi_free( &ctx->xm2 ); + mbedtls_mpi_free( &ctx->s ); +} + +/* + * Setup context + */ +int mbedtls_ecjpake_setup( mbedtls_ecjpake_context *ctx, + mbedtls_ecjpake_role role, + mbedtls_md_type_t hash, + mbedtls_ecp_group_id curve, + const unsigned char *secret, + size_t len ) +{ + int ret; + + ctx->role = role; + + if( ( ctx->md_info = mbedtls_md_info_from_type( hash ) ) == NULL ) + return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE ); + + MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &ctx->grp, curve ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->s, secret, len ) ); + +cleanup: + if( ret != 0 ) + mbedtls_ecjpake_free( ctx ); + + return( ret ); +} + +/* + * Check if context is ready for use + */ +int mbedtls_ecjpake_check( const mbedtls_ecjpake_context *ctx ) +{ + if( ctx->md_info == NULL || + ctx->grp.id == MBEDTLS_ECP_DP_NONE || + ctx->s.p == NULL ) + { + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + } + + return( 0 ); +} + +/* + * Write a point plus its length to a buffer + */ +static int ecjpake_write_len_point( unsigned char **p, + const unsigned char *end, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *P ) +{ + int ret; + size_t len; + + /* Need at least 4 for length plus 1 for point */ + if( end < *p || end - *p < 5 ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + ret = mbedtls_ecp_point_write_binary( grp, P, pf, + &len, *p + 4, end - ( *p + 4 ) ); + if( ret != 0 ) + return( ret ); + + (*p)[0] = (unsigned char)( ( len >> 24 ) & 0xFF ); + (*p)[1] = (unsigned char)( ( len >> 16 ) & 0xFF ); + (*p)[2] = (unsigned char)( ( len >> 8 ) & 0xFF ); + (*p)[3] = (unsigned char)( ( len ) & 0xFF ); + + *p += 4 + len; + + return( 0 ); +} + +/* + * Size of the temporary buffer for ecjpake_hash: + * 3 EC points plus their length, plus ID and its length (4 + 6 bytes) + */ +#define ECJPAKE_HASH_BUF_LEN ( 3 * ( 4 + MBEDTLS_ECP_MAX_PT_LEN ) + 4 + 6 ) + +/* + * Compute hash for ZKP (7.4.2.2.2.1) + */ +static int ecjpake_hash( const mbedtls_md_info_t *md_info, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *G, + const mbedtls_ecp_point *V, + const mbedtls_ecp_point *X, + const char *id, + mbedtls_mpi *h ) +{ + int ret; + unsigned char buf[ECJPAKE_HASH_BUF_LEN]; + unsigned char *p = buf; + const unsigned char *end = buf + sizeof( buf ); + const size_t id_len = strlen( id ); + unsigned char hash[MBEDTLS_MD_MAX_SIZE]; + + /* Write things to temporary buffer */ + MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, G ) ); + MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, V ) ); + MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, X ) ); + + if( end - p < 4 ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + *p++ = (unsigned char)( ( id_len >> 24 ) & 0xFF ); + *p++ = (unsigned char)( ( id_len >> 16 ) & 0xFF ); + *p++ = (unsigned char)( ( id_len >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( id_len ) & 0xFF ); + + if( end < p || (size_t)( end - p ) < id_len ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + memcpy( p, id, id_len ); + p += id_len; + + /* Compute hash */ + mbedtls_md( md_info, buf, p - buf, hash ); + + /* Turn it into an integer mod n */ + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( h, hash, + mbedtls_md_get_size( md_info ) ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( h, h, &grp->N ) ); + +cleanup: + return( ret ); +} + +/* + * Parse a ECShnorrZKP (7.4.2.2.2) and verify it (7.4.2.3.3) + */ +static int ecjpake_zkp_read( const mbedtls_md_info_t *md_info, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *G, + const mbedtls_ecp_point *X, + const char *id, + const unsigned char **p, + const unsigned char *end ) +{ + int ret; + mbedtls_ecp_point V, VV; + mbedtls_mpi r, h; + size_t r_len; + + mbedtls_ecp_point_init( &V ); + mbedtls_ecp_point_init( &VV ); + mbedtls_mpi_init( &r ); + mbedtls_mpi_init( &h ); + + /* + * struct { + * ECPoint V; + * opaque r<1..2^8-1>; + * } ECSchnorrZKP; + */ + if( end < *p ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_point( grp, &V, p, end - *p ) ); + + if( end < *p || (size_t)( end - *p ) < 1 ) + { + ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + goto cleanup; + } + + r_len = *(*p)++; + + if( end < *p || (size_t)( end - *p ) < r_len ) + { + ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + goto cleanup; + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &r, *p, r_len ) ); + *p += r_len; + + /* + * Verification + */ + MBEDTLS_MPI_CHK( ecjpake_hash( md_info, grp, pf, G, &V, X, id, &h ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( (mbedtls_ecp_group *) grp, + &VV, &h, X, &r, G ) ); + + if( mbedtls_ecp_point_cmp( &VV, &V ) != 0 ) + { + ret = MBEDTLS_ERR_ECP_VERIFY_FAILED; + goto cleanup; + } + +cleanup: + mbedtls_ecp_point_free( &V ); + mbedtls_ecp_point_free( &VV ); + mbedtls_mpi_free( &r ); + mbedtls_mpi_free( &h ); + + return( ret ); +} + +/* + * Generate ZKP (7.4.2.3.2) and write it as ECSchnorrZKP (7.4.2.2.2) + */ +static int ecjpake_zkp_write( const mbedtls_md_info_t *md_info, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *G, + const mbedtls_mpi *x, + const mbedtls_ecp_point *X, + const char *id, + unsigned char **p, + const unsigned char *end, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_ecp_point V; + mbedtls_mpi v; + mbedtls_mpi h; /* later recycled to hold r */ + size_t len; + + if( end < *p ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + mbedtls_ecp_point_init( &V ); + mbedtls_mpi_init( &v ); + mbedtls_mpi_init( &h ); + + /* Compute signature */ + MBEDTLS_MPI_CHK( mbedtls_ecp_gen_keypair_base( (mbedtls_ecp_group *) grp, + G, &v, &V, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( ecjpake_hash( md_info, grp, pf, G, &V, X, id, &h ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &h, &h, x ) ); /* x*h */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &h, &v, &h ) ); /* v - x*h */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &h, &h, &grp->N ) ); /* r */ + + /* Write it out */ + MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( grp, &V, + pf, &len, *p, end - *p ) ); + *p += len; + + len = mbedtls_mpi_size( &h ); /* actually r */ + if( end < *p || (size_t)( end - *p ) < 1 + len || len > 255 ) + { + ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL; + goto cleanup; + } + + *(*p)++ = (unsigned char)( len & 0xFF ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &h, *p, len ) ); /* r */ + *p += len; + +cleanup: + mbedtls_ecp_point_free( &V ); + mbedtls_mpi_free( &v ); + mbedtls_mpi_free( &h ); + + return( ret ); +} + +/* + * Parse a ECJPAKEKeyKP (7.4.2.2.1) and check proof + * Output: verified public key X + */ +static int ecjpake_kkp_read( const mbedtls_md_info_t *md_info, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *G, + mbedtls_ecp_point *X, + const char *id, + const unsigned char **p, + const unsigned char *end ) +{ + int ret; + + if( end < *p ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * struct { + * ECPoint X; + * ECSchnorrZKP zkp; + * } ECJPAKEKeyKP; + */ + MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_point( grp, X, p, end - *p ) ); + if( mbedtls_ecp_is_zero( X ) ) + { + ret = MBEDTLS_ERR_ECP_INVALID_KEY; + goto cleanup; + } + + MBEDTLS_MPI_CHK( ecjpake_zkp_read( md_info, grp, pf, G, X, id, p, end ) ); + +cleanup: + return( ret ); +} + +/* + * Generate an ECJPAKEKeyKP + * Output: the serialized structure, plus private/public key pair + */ +static int ecjpake_kkp_write( const mbedtls_md_info_t *md_info, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *G, + mbedtls_mpi *x, + mbedtls_ecp_point *X, + const char *id, + unsigned char **p, + const unsigned char *end, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + size_t len; + + if( end < *p ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + /* Generate key (7.4.2.3.1) and write it out */ + MBEDTLS_MPI_CHK( mbedtls_ecp_gen_keypair_base( (mbedtls_ecp_group *) grp, G, x, X, + f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( grp, X, + pf, &len, *p, end - *p ) ); + *p += len; + + /* Generate and write proof */ + MBEDTLS_MPI_CHK( ecjpake_zkp_write( md_info, grp, pf, G, x, X, id, + p, end, f_rng, p_rng ) ); + +cleanup: + return( ret ); +} + +/* + * Read a ECJPAKEKeyKPPairList (7.4.2.3) and check proofs + * Ouputs: verified peer public keys Xa, Xb + */ +static int ecjpake_kkpp_read( const mbedtls_md_info_t *md_info, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *G, + mbedtls_ecp_point *Xa, + mbedtls_ecp_point *Xb, + const char *id, + const unsigned char *buf, + size_t len ) +{ + int ret; + const unsigned char *p = buf; + const unsigned char *end = buf + len; + + /* + * struct { + * ECJPAKEKeyKP ecjpake_key_kp_pair_list[2]; + * } ECJPAKEKeyKPPairList; + */ + MBEDTLS_MPI_CHK( ecjpake_kkp_read( md_info, grp, pf, G, Xa, id, &p, end ) ); + MBEDTLS_MPI_CHK( ecjpake_kkp_read( md_info, grp, pf, G, Xb, id, &p, end ) ); + + if( p != end ) + ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + +cleanup: + return( ret ); +} + +/* + * Generate a ECJPAKEKeyKPPairList + * Outputs: the serialized structure, plus two private/public key pairs + */ +static int ecjpake_kkpp_write( const mbedtls_md_info_t *md_info, + const mbedtls_ecp_group *grp, + const int pf, + const mbedtls_ecp_point *G, + mbedtls_mpi *xm1, + mbedtls_ecp_point *Xa, + mbedtls_mpi *xm2, + mbedtls_ecp_point *Xb, + const char *id, + unsigned char *buf, + size_t len, + size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + unsigned char *p = buf; + const unsigned char *end = buf + len; + + MBEDTLS_MPI_CHK( ecjpake_kkp_write( md_info, grp, pf, G, xm1, Xa, id, + &p, end, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( ecjpake_kkp_write( md_info, grp, pf, G, xm2, Xb, id, + &p, end, f_rng, p_rng ) ); + + *olen = p - buf; + +cleanup: + return( ret ); +} + +/* + * Read and process the first round message + */ +int mbedtls_ecjpake_read_round_one( mbedtls_ecjpake_context *ctx, + const unsigned char *buf, + size_t len ) +{ + return( ecjpake_kkpp_read( ctx->md_info, &ctx->grp, ctx->point_format, + &ctx->grp.G, + &ctx->Xp1, &ctx->Xp2, ID_PEER, + buf, len ) ); +} + +/* + * Generate and write the first round message + */ +int mbedtls_ecjpake_write_round_one( mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + return( ecjpake_kkpp_write( ctx->md_info, &ctx->grp, ctx->point_format, + &ctx->grp.G, + &ctx->xm1, &ctx->Xm1, &ctx->xm2, &ctx->Xm2, + ID_MINE, buf, len, olen, f_rng, p_rng ) ); +} + +/* + * Compute the sum of three points R = A + B + C + */ +static int ecjpake_ecp_add3( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_ecp_point *A, + const mbedtls_ecp_point *B, + const mbedtls_ecp_point *C ) +{ + int ret; + mbedtls_mpi one; + + mbedtls_mpi_init( &one ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &one, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( grp, R, &one, A, &one, B ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( grp, R, &one, R, &one, C ) ); + +cleanup: + mbedtls_mpi_free( &one ); + + return( ret ); +} + +/* + * Read and process second round message (C: 7.4.2.5, S: 7.4.2.6) + */ +int mbedtls_ecjpake_read_round_two( mbedtls_ecjpake_context *ctx, + const unsigned char *buf, + size_t len ) +{ + int ret; + const unsigned char *p = buf; + const unsigned char *end = buf + len; + mbedtls_ecp_group grp; + mbedtls_ecp_point G; /* C: GB, S: GA */ + + mbedtls_ecp_group_init( &grp ); + mbedtls_ecp_point_init( &G ); + + /* + * Server: GA = X3 + X4 + X1 (7.4.2.6.1) + * Client: GB = X1 + X2 + X3 (7.4.2.5.1) + * Unified: G = Xm1 + Xm2 + Xp1 + * We need that before parsing in order to check Xp as we read it + */ + MBEDTLS_MPI_CHK( ecjpake_ecp_add3( &ctx->grp, &G, + &ctx->Xm1, &ctx->Xm2, &ctx->Xp1 ) ); + + /* + * struct { + * ECParameters curve_params; // only client reading server msg + * ECJPAKEKeyKP ecjpake_key_kp; + * } Client/ServerECJPAKEParams; + */ + if( ctx->role == MBEDTLS_ECJPAKE_CLIENT ) + { + MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_group( &grp, &p, len ) ); + if( grp.id != ctx->grp.id ) + { + ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE; + goto cleanup; + } + } + + MBEDTLS_MPI_CHK( ecjpake_kkp_read( ctx->md_info, &ctx->grp, + ctx->point_format, + &G, &ctx->Xp, ID_PEER, &p, end ) ); + + if( p != end ) + { + ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + goto cleanup; + } + +cleanup: + mbedtls_ecp_group_free( &grp ); + mbedtls_ecp_point_free( &G ); + + return( ret ); +} + +/* + * Compute R = +/- X * S mod N, taking care not to leak S + */ +static int ecjpake_mul_secret( mbedtls_mpi *R, int sign, + const mbedtls_mpi *X, + const mbedtls_mpi *S, + const mbedtls_mpi *N, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_mpi b; /* Blinding value, then s + N * blinding */ + + mbedtls_mpi_init( &b ); + + /* b = s + rnd-128-bit * N */ + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &b, 16, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &b, &b, N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &b, &b, S ) ); + + /* R = sign * X * b mod N */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( R, X, &b ) ); + R->s *= sign; + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( R, R, N ) ); + +cleanup: + mbedtls_mpi_free( &b ); + + return( ret ); +} + +/* + * Generate and write the second round message (S: 7.4.2.5, C: 7.4.2.6) + */ +int mbedtls_ecjpake_write_round_two( mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_ecp_point G; /* C: GA, S: GB */ + mbedtls_ecp_point Xm; /* C: Xc, S: Xs */ + mbedtls_mpi xm; /* C: xc, S: xs */ + unsigned char *p = buf; + const unsigned char *end = buf + len; + size_t ec_len; + + mbedtls_ecp_point_init( &G ); + mbedtls_ecp_point_init( &Xm ); + mbedtls_mpi_init( &xm ); + + /* + * First generate private/public key pair (S: 7.4.2.5.1, C: 7.4.2.6.1) + * + * Client: GA = X1 + X3 + X4 | xs = x2 * s | Xc = xc * GA + * Server: GB = X3 + X1 + X2 | xs = x4 * s | Xs = xs * GB + * Unified: G = Xm1 + Xp1 + Xp2 | xm = xm2 * s | Xm = xm * G + */ + MBEDTLS_MPI_CHK( ecjpake_ecp_add3( &ctx->grp, &G, + &ctx->Xp1, &ctx->Xp2, &ctx->Xm1 ) ); + MBEDTLS_MPI_CHK( ecjpake_mul_secret( &xm, 1, &ctx->xm2, &ctx->s, + &ctx->grp.N, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &Xm, &xm, &G, f_rng, p_rng ) ); + + /* + * Now write things out + * + * struct { + * ECParameters curve_params; // only server writing its message + * ECJPAKEKeyKP ecjpake_key_kp; + * } Client/ServerECJPAKEParams; + */ + if( ctx->role == MBEDTLS_ECJPAKE_SERVER ) + { + if( end < p ) + { + ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL; + goto cleanup; + } + MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_group( &ctx->grp, &ec_len, + p, end - p ) ); + p += ec_len; + } + + if( end < p ) + { + ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL; + goto cleanup; + } + MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( &ctx->grp, &Xm, + ctx->point_format, &ec_len, p, end - p ) ); + p += ec_len; + + MBEDTLS_MPI_CHK( ecjpake_zkp_write( ctx->md_info, &ctx->grp, + ctx->point_format, + &G, &xm, &Xm, ID_MINE, + &p, end, f_rng, p_rng ) ); + + *olen = p - buf; + +cleanup: + mbedtls_ecp_point_free( &G ); + mbedtls_ecp_point_free( &Xm ); + mbedtls_mpi_free( &xm ); + + return( ret ); +} + +/* + * Derive PMS (7.4.2.7 / 7.4.2.8) + */ +int mbedtls_ecjpake_derive_secret( mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_ecp_point K; + mbedtls_mpi m_xm2_s, one; + unsigned char kx[MBEDTLS_ECP_MAX_BYTES]; + size_t x_bytes; + + *olen = mbedtls_md_get_size( ctx->md_info ); + if( len < *olen ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + mbedtls_ecp_point_init( &K ); + mbedtls_mpi_init( &m_xm2_s ); + mbedtls_mpi_init( &one ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &one, 1 ) ); + + /* + * Client: K = ( Xs - X4 * x2 * s ) * x2 + * Server: K = ( Xc - X2 * x4 * s ) * x4 + * Unified: K = ( Xp - Xp2 * xm2 * s ) * xm2 + */ + MBEDTLS_MPI_CHK( ecjpake_mul_secret( &m_xm2_s, -1, &ctx->xm2, &ctx->s, + &ctx->grp.N, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( &ctx->grp, &K, + &one, &ctx->Xp, + &m_xm2_s, &ctx->Xp2 ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &K, &ctx->xm2, &K, + f_rng, p_rng ) ); + + /* PMS = SHA-256( K.X ) */ + x_bytes = ( ctx->grp.pbits + 7 ) / 8; + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &K.X, kx, x_bytes ) ); + MBEDTLS_MPI_CHK( mbedtls_md( ctx->md_info, kx, x_bytes, buf ) ); + +cleanup: + mbedtls_ecp_point_free( &K ); + mbedtls_mpi_free( &m_xm2_s ); + mbedtls_mpi_free( &one ); + + return( ret ); +} + +#undef ID_MINE +#undef ID_PEER + + +#if defined(MBEDTLS_SELF_TEST) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif + +#if !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \ + !defined(MBEDTLS_SHA256_C) +int mbedtls_ecjpake_self_test( int verbose ) +{ + (void) verbose; + return( 0 ); +} +#else + +static const unsigned char ecjpake_test_password[] = { + 0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x6a, 0x70, 0x61, 0x6b, 0x65, 0x74, + 0x65, 0x73, 0x74 +}; + +static const unsigned char ecjpake_test_x1[] = { + 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, + 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, + 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x21 +}; + +static const unsigned char ecjpake_test_x2[] = { + 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, + 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, + 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x81 +}; + +static const unsigned char ecjpake_test_x3[] = { + 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, + 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, + 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x81 +}; + +static const unsigned char ecjpake_test_x4[] = { + 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, + 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, + 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe1 +}; + +static const unsigned char ecjpake_test_cli_one[] = { + 0x41, 0x04, 0xac, 0xcf, 0x01, 0x06, 0xef, 0x85, 0x8f, 0xa2, 0xd9, 0x19, + 0x33, 0x13, 0x46, 0x80, 0x5a, 0x78, 0xb5, 0x8b, 0xba, 0xd0, 0xb8, 0x44, + 0xe5, 0xc7, 0x89, 0x28, 0x79, 0x14, 0x61, 0x87, 0xdd, 0x26, 0x66, 0xad, + 0xa7, 0x81, 0xbb, 0x7f, 0x11, 0x13, 0x72, 0x25, 0x1a, 0x89, 0x10, 0x62, + 0x1f, 0x63, 0x4d, 0xf1, 0x28, 0xac, 0x48, 0xe3, 0x81, 0xfd, 0x6e, 0xf9, + 0x06, 0x07, 0x31, 0xf6, 0x94, 0xa4, 0x41, 0x04, 0x1d, 0xd0, 0xbd, 0x5d, + 0x45, 0x66, 0xc9, 0xbe, 0xd9, 0xce, 0x7d, 0xe7, 0x01, 0xb5, 0xe8, 0x2e, + 0x08, 0xe8, 0x4b, 0x73, 0x04, 0x66, 0x01, 0x8a, 0xb9, 0x03, 0xc7, 0x9e, + 0xb9, 0x82, 0x17, 0x22, 0x36, 0xc0, 0xc1, 0x72, 0x8a, 0xe4, 0xbf, 0x73, + 0x61, 0x0d, 0x34, 0xde, 0x44, 0x24, 0x6e, 0xf3, 0xd9, 0xc0, 0x5a, 0x22, + 0x36, 0xfb, 0x66, 0xa6, 0x58, 0x3d, 0x74, 0x49, 0x30, 0x8b, 0xab, 0xce, + 0x20, 0x72, 0xfe, 0x16, 0x66, 0x29, 0x92, 0xe9, 0x23, 0x5c, 0x25, 0x00, + 0x2f, 0x11, 0xb1, 0x50, 0x87, 0xb8, 0x27, 0x38, 0xe0, 0x3c, 0x94, 0x5b, + 0xf7, 0xa2, 0x99, 0x5d, 0xda, 0x1e, 0x98, 0x34, 0x58, 0x41, 0x04, 0x7e, + 0xa6, 0xe3, 0xa4, 0x48, 0x70, 0x37, 0xa9, 0xe0, 0xdb, 0xd7, 0x92, 0x62, + 0xb2, 0xcc, 0x27, 0x3e, 0x77, 0x99, 0x30, 0xfc, 0x18, 0x40, 0x9a, 0xc5, + 0x36, 0x1c, 0x5f, 0xe6, 0x69, 0xd7, 0x02, 0xe1, 0x47, 0x79, 0x0a, 0xeb, + 0x4c, 0xe7, 0xfd, 0x65, 0x75, 0xab, 0x0f, 0x6c, 0x7f, 0xd1, 0xc3, 0x35, + 0x93, 0x9a, 0xa8, 0x63, 0xba, 0x37, 0xec, 0x91, 0xb7, 0xe3, 0x2b, 0xb0, + 0x13, 0xbb, 0x2b, 0x41, 0x04, 0xa4, 0x95, 0x58, 0xd3, 0x2e, 0xd1, 0xeb, + 0xfc, 0x18, 0x16, 0xaf, 0x4f, 0xf0, 0x9b, 0x55, 0xfc, 0xb4, 0xca, 0x47, + 0xb2, 0xa0, 0x2d, 0x1e, 0x7c, 0xaf, 0x11, 0x79, 0xea, 0x3f, 0xe1, 0x39, + 0x5b, 0x22, 0xb8, 0x61, 0x96, 0x40, 0x16, 0xfa, 0xba, 0xf7, 0x2c, 0x97, + 0x56, 0x95, 0xd9, 0x3d, 0x4d, 0xf0, 0xe5, 0x19, 0x7f, 0xe9, 0xf0, 0x40, + 0x63, 0x4e, 0xd5, 0x97, 0x64, 0x93, 0x77, 0x87, 0xbe, 0x20, 0xbc, 0x4d, + 0xee, 0xbb, 0xf9, 0xb8, 0xd6, 0x0a, 0x33, 0x5f, 0x04, 0x6c, 0xa3, 0xaa, + 0x94, 0x1e, 0x45, 0x86, 0x4c, 0x7c, 0xad, 0xef, 0x9c, 0xf7, 0x5b, 0x3d, + 0x8b, 0x01, 0x0e, 0x44, 0x3e, 0xf0 +}; + +static const unsigned char ecjpake_test_srv_one[] = { + 0x41, 0x04, 0x7e, 0xa6, 0xe3, 0xa4, 0x48, 0x70, 0x37, 0xa9, 0xe0, 0xdb, + 0xd7, 0x92, 0x62, 0xb2, 0xcc, 0x27, 0x3e, 0x77, 0x99, 0x30, 0xfc, 0x18, + 0x40, 0x9a, 0xc5, 0x36, 0x1c, 0x5f, 0xe6, 0x69, 0xd7, 0x02, 0xe1, 0x47, + 0x79, 0x0a, 0xeb, 0x4c, 0xe7, 0xfd, 0x65, 0x75, 0xab, 0x0f, 0x6c, 0x7f, + 0xd1, 0xc3, 0x35, 0x93, 0x9a, 0xa8, 0x63, 0xba, 0x37, 0xec, 0x91, 0xb7, + 0xe3, 0x2b, 0xb0, 0x13, 0xbb, 0x2b, 0x41, 0x04, 0x09, 0xf8, 0x5b, 0x3d, + 0x20, 0xeb, 0xd7, 0x88, 0x5c, 0xe4, 0x64, 0xc0, 0x8d, 0x05, 0x6d, 0x64, + 0x28, 0xfe, 0x4d, 0xd9, 0x28, 0x7a, 0xa3, 0x65, 0xf1, 0x31, 0xf4, 0x36, + 0x0f, 0xf3, 0x86, 0xd8, 0x46, 0x89, 0x8b, 0xc4, 0xb4, 0x15, 0x83, 0xc2, + 0xa5, 0x19, 0x7f, 0x65, 0xd7, 0x87, 0x42, 0x74, 0x6c, 0x12, 0xa5, 0xec, + 0x0a, 0x4f, 0xfe, 0x2f, 0x27, 0x0a, 0x75, 0x0a, 0x1d, 0x8f, 0xb5, 0x16, + 0x20, 0x93, 0x4d, 0x74, 0xeb, 0x43, 0xe5, 0x4d, 0xf4, 0x24, 0xfd, 0x96, + 0x30, 0x6c, 0x01, 0x17, 0xbf, 0x13, 0x1a, 0xfa, 0xbf, 0x90, 0xa9, 0xd3, + 0x3d, 0x11, 0x98, 0xd9, 0x05, 0x19, 0x37, 0x35, 0x14, 0x41, 0x04, 0x19, + 0x0a, 0x07, 0x70, 0x0f, 0xfa, 0x4b, 0xe6, 0xae, 0x1d, 0x79, 0xee, 0x0f, + 0x06, 0xae, 0xb5, 0x44, 0xcd, 0x5a, 0xdd, 0xaa, 0xbe, 0xdf, 0x70, 0xf8, + 0x62, 0x33, 0x21, 0x33, 0x2c, 0x54, 0xf3, 0x55, 0xf0, 0xfb, 0xfe, 0xc7, + 0x83, 0xed, 0x35, 0x9e, 0x5d, 0x0b, 0xf7, 0x37, 0x7a, 0x0f, 0xc4, 0xea, + 0x7a, 0xce, 0x47, 0x3c, 0x9c, 0x11, 0x2b, 0x41, 0xcc, 0xd4, 0x1a, 0xc5, + 0x6a, 0x56, 0x12, 0x41, 0x04, 0x36, 0x0a, 0x1c, 0xea, 0x33, 0xfc, 0xe6, + 0x41, 0x15, 0x64, 0x58, 0xe0, 0xa4, 0xea, 0xc2, 0x19, 0xe9, 0x68, 0x31, + 0xe6, 0xae, 0xbc, 0x88, 0xb3, 0xf3, 0x75, 0x2f, 0x93, 0xa0, 0x28, 0x1d, + 0x1b, 0xf1, 0xfb, 0x10, 0x60, 0x51, 0xdb, 0x96, 0x94, 0xa8, 0xd6, 0xe8, + 0x62, 0xa5, 0xef, 0x13, 0x24, 0xa3, 0xd9, 0xe2, 0x78, 0x94, 0xf1, 0xee, + 0x4f, 0x7c, 0x59, 0x19, 0x99, 0x65, 0xa8, 0xdd, 0x4a, 0x20, 0x91, 0x84, + 0x7d, 0x2d, 0x22, 0xdf, 0x3e, 0xe5, 0x5f, 0xaa, 0x2a, 0x3f, 0xb3, 0x3f, + 0xd2, 0xd1, 0xe0, 0x55, 0xa0, 0x7a, 0x7c, 0x61, 0xec, 0xfb, 0x8d, 0x80, + 0xec, 0x00, 0xc2, 0xc9, 0xeb, 0x12 +}; + +static const unsigned char ecjpake_test_srv_two[] = { + 0x03, 0x00, 0x17, 0x41, 0x04, 0x0f, 0xb2, 0x2b, 0x1d, 0x5d, 0x11, 0x23, + 0xe0, 0xef, 0x9f, 0xeb, 0x9d, 0x8a, 0x2e, 0x59, 0x0a, 0x1f, 0x4d, 0x7c, + 0xed, 0x2c, 0x2b, 0x06, 0x58, 0x6e, 0x8f, 0x2a, 0x16, 0xd4, 0xeb, 0x2f, + 0xda, 0x43, 0x28, 0xa2, 0x0b, 0x07, 0xd8, 0xfd, 0x66, 0x76, 0x54, 0xca, + 0x18, 0xc5, 0x4e, 0x32, 0xa3, 0x33, 0xa0, 0x84, 0x54, 0x51, 0xe9, 0x26, + 0xee, 0x88, 0x04, 0xfd, 0x7a, 0xf0, 0xaa, 0xa7, 0xa6, 0x41, 0x04, 0x55, + 0x16, 0xea, 0x3e, 0x54, 0xa0, 0xd5, 0xd8, 0xb2, 0xce, 0x78, 0x6b, 0x38, + 0xd3, 0x83, 0x37, 0x00, 0x29, 0xa5, 0xdb, 0xe4, 0x45, 0x9c, 0x9d, 0xd6, + 0x01, 0xb4, 0x08, 0xa2, 0x4a, 0xe6, 0x46, 0x5c, 0x8a, 0xc9, 0x05, 0xb9, + 0xeb, 0x03, 0xb5, 0xd3, 0x69, 0x1c, 0x13, 0x9e, 0xf8, 0x3f, 0x1c, 0xd4, + 0x20, 0x0f, 0x6c, 0x9c, 0xd4, 0xec, 0x39, 0x22, 0x18, 0xa5, 0x9e, 0xd2, + 0x43, 0xd3, 0xc8, 0x20, 0xff, 0x72, 0x4a, 0x9a, 0x70, 0xb8, 0x8c, 0xb8, + 0x6f, 0x20, 0xb4, 0x34, 0xc6, 0x86, 0x5a, 0xa1, 0xcd, 0x79, 0x06, 0xdd, + 0x7c, 0x9b, 0xce, 0x35, 0x25, 0xf5, 0x08, 0x27, 0x6f, 0x26, 0x83, 0x6c +}; + +static const unsigned char ecjpake_test_cli_two[] = { + 0x41, 0x04, 0x69, 0xd5, 0x4e, 0xe8, 0x5e, 0x90, 0xce, 0x3f, 0x12, 0x46, + 0x74, 0x2d, 0xe5, 0x07, 0xe9, 0x39, 0xe8, 0x1d, 0x1d, 0xc1, 0xc5, 0xcb, + 0x98, 0x8b, 0x58, 0xc3, 0x10, 0xc9, 0xfd, 0xd9, 0x52, 0x4d, 0x93, 0x72, + 0x0b, 0x45, 0x54, 0x1c, 0x83, 0xee, 0x88, 0x41, 0x19, 0x1d, 0xa7, 0xce, + 0xd8, 0x6e, 0x33, 0x12, 0xd4, 0x36, 0x23, 0xc1, 0xd6, 0x3e, 0x74, 0x98, + 0x9a, 0xba, 0x4a, 0xff, 0xd1, 0xee, 0x41, 0x04, 0x07, 0x7e, 0x8c, 0x31, + 0xe2, 0x0e, 0x6b, 0xed, 0xb7, 0x60, 0xc1, 0x35, 0x93, 0xe6, 0x9f, 0x15, + 0xbe, 0x85, 0xc2, 0x7d, 0x68, 0xcd, 0x09, 0xcc, 0xb8, 0xc4, 0x18, 0x36, + 0x08, 0x91, 0x7c, 0x5c, 0x3d, 0x40, 0x9f, 0xac, 0x39, 0xfe, 0xfe, 0xe8, + 0x2f, 0x72, 0x92, 0xd3, 0x6f, 0x0d, 0x23, 0xe0, 0x55, 0x91, 0x3f, 0x45, + 0xa5, 0x2b, 0x85, 0xdd, 0x8a, 0x20, 0x52, 0xe9, 0xe1, 0x29, 0xbb, 0x4d, + 0x20, 0x0f, 0x01, 0x1f, 0x19, 0x48, 0x35, 0x35, 0xa6, 0xe8, 0x9a, 0x58, + 0x0c, 0x9b, 0x00, 0x03, 0xba, 0xf2, 0x14, 0x62, 0xec, 0xe9, 0x1a, 0x82, + 0xcc, 0x38, 0xdb, 0xdc, 0xae, 0x60, 0xd9, 0xc5, 0x4c +}; + +static const unsigned char ecjpake_test_pms[] = { + 0xf3, 0xd4, 0x7f, 0x59, 0x98, 0x44, 0xdb, 0x92, 0xa5, 0x69, 0xbb, 0xe7, + 0x98, 0x1e, 0x39, 0xd9, 0x31, 0xfd, 0x74, 0x3b, 0xf2, 0x2e, 0x98, 0xf9, + 0xb4, 0x38, 0xf7, 0x19, 0xd3, 0xc4, 0xf3, 0x51 +}; + +/* Load my private keys and generate the correponding public keys */ +static int ecjpake_test_load( mbedtls_ecjpake_context *ctx, + const unsigned char *xm1, size_t len1, + const unsigned char *xm2, size_t len2 ) +{ + int ret; + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->xm1, xm1, len1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->xm2, xm2, len2 ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &ctx->Xm1, &ctx->xm1, + &ctx->grp.G, NULL, NULL ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &ctx->Xm2, &ctx->xm2, + &ctx->grp.G, NULL, NULL ) ); + +cleanup: + return( ret ); +} + +/* For tests we don't need a secure RNG; + * use the LGC from Numerical Recipes for simplicity */ +static int ecjpake_lgc( void *p, unsigned char *out, size_t len ) +{ + static uint32_t x = 42; + (void) p; + + while( len > 0 ) + { + size_t use_len = len > 4 ? 4 : len; + x = 1664525 * x + 1013904223; + memcpy( out, &x, use_len ); + out += use_len; + len -= use_len; + } + + return( 0 ); +} + +#define TEST_ASSERT( x ) \ + do { \ + if( x ) \ + ret = 0; \ + else \ + { \ + ret = 1; \ + goto cleanup; \ + } \ + } while( 0 ) + +/* + * Checkup routine + */ +int mbedtls_ecjpake_self_test( int verbose ) +{ + int ret; + mbedtls_ecjpake_context cli; + mbedtls_ecjpake_context srv; + unsigned char buf[512], pms[32]; + size_t len, pmslen; + + mbedtls_ecjpake_init( &cli ); + mbedtls_ecjpake_init( &srv ); + + if( verbose != 0 ) + mbedtls_printf( " ECJPAKE test #0 (setup): " ); + + TEST_ASSERT( mbedtls_ecjpake_setup( &cli, MBEDTLS_ECJPAKE_CLIENT, + MBEDTLS_MD_SHA256, MBEDTLS_ECP_DP_SECP256R1, + ecjpake_test_password, + sizeof( ecjpake_test_password ) ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_setup( &srv, MBEDTLS_ECJPAKE_SERVER, + MBEDTLS_MD_SHA256, MBEDTLS_ECP_DP_SECP256R1, + ecjpake_test_password, + sizeof( ecjpake_test_password ) ) == 0 ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " ECJPAKE test #1 (random handshake): " ); + + TEST_ASSERT( mbedtls_ecjpake_write_round_one( &cli, + buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_read_round_one( &srv, buf, len ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_write_round_one( &srv, + buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_read_round_one( &cli, buf, len ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_write_round_two( &srv, + buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_read_round_two( &cli, buf, len ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli, + pms, sizeof( pms ), &pmslen, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_write_round_two( &cli, + buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_read_round_two( &srv, buf, len ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv, + buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( len == pmslen ); + TEST_ASSERT( memcmp( buf, pms, len ) == 0 ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " ECJPAKE test #2 (reference handshake): " ); + + /* Simulate generation of round one */ + MBEDTLS_MPI_CHK( ecjpake_test_load( &cli, + ecjpake_test_x1, sizeof( ecjpake_test_x1 ), + ecjpake_test_x2, sizeof( ecjpake_test_x2 ) ) ); + + MBEDTLS_MPI_CHK( ecjpake_test_load( &srv, + ecjpake_test_x3, sizeof( ecjpake_test_x3 ), + ecjpake_test_x4, sizeof( ecjpake_test_x4 ) ) ); + + /* Read round one */ + TEST_ASSERT( mbedtls_ecjpake_read_round_one( &srv, + ecjpake_test_cli_one, + sizeof( ecjpake_test_cli_one ) ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_read_round_one( &cli, + ecjpake_test_srv_one, + sizeof( ecjpake_test_srv_one ) ) == 0 ); + + /* Skip generation of round two, read round two */ + TEST_ASSERT( mbedtls_ecjpake_read_round_two( &cli, + ecjpake_test_srv_two, + sizeof( ecjpake_test_srv_two ) ) == 0 ); + + TEST_ASSERT( mbedtls_ecjpake_read_round_two( &srv, + ecjpake_test_cli_two, + sizeof( ecjpake_test_cli_two ) ) == 0 ); + + /* Server derives PMS */ + TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv, + buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( len == sizeof( ecjpake_test_pms ) ); + TEST_ASSERT( memcmp( buf, ecjpake_test_pms, len ) == 0 ); + + memset( buf, 0, len ); /* Avoid interferences with next step */ + + /* Client derives PMS */ + TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli, + buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 ); + + TEST_ASSERT( len == sizeof( ecjpake_test_pms ) ); + TEST_ASSERT( memcmp( buf, ecjpake_test_pms, len ) == 0 ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + +cleanup: + mbedtls_ecjpake_free( &cli ); + mbedtls_ecjpake_free( &srv ); + + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( ret ); +} + +#undef TEST_ASSERT + +#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED && MBEDTLS_SHA256_C */ + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_ECJPAKE_C */ diff --git a/mbedtls/ecp.c b/mbedtls/ecp.c new file mode 100644 index 0000000..f51f225 --- /dev/null +++ b/mbedtls/ecp.c @@ -0,0 +1,2092 @@ +/* + * Elliptic curves over GF(p): generic functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * References: + * + * SEC1 http://www.secg.org/index.php?action=secg,docs_secg + * GECC = Guide to Elliptic Curve Cryptography - Hankerson, Menezes, Vanstone + * FIPS 186-3 http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf + * RFC 4492 for the related TLS structures and constants + * + * [Curve25519] http://cr.yp.to/ecdh/curve25519-20060209.pdf + * + * [2] CORON, Jean-S'ebastien. Resistance against differential power analysis + * for elliptic curve cryptosystems. In : Cryptographic Hardware and + * Embedded Systems. Springer Berlin Heidelberg, 1999. p. 292-302. + * + * + * [3] HEDABOU, Mustapha, PINEL, Pierre, et B'EN'ETEAU, Lucien. A comb method to + * render ECC resistant against Side Channel Attacks. IACR Cryptology + * ePrint Archive, 2004, vol. 2004, p. 342. + * + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ECP_C) + +#include "mbedtls/ecp.h" + +#include + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_printf printf +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +#if defined(MBEDTLS_SELF_TEST) +/* + * Counts of point addition and doubling, and field multiplications. + * Used to test resistance of point multiplication to simple timing attacks. + */ +static unsigned long add_count, dbl_count, mul_count; +#endif + +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +#define ECP_SHORTWEIERSTRASS +#endif + +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) +#define ECP_MONTGOMERY +#endif + +/* + * Curve types: internal for now, might be exposed later + */ +typedef enum +{ + ECP_TYPE_NONE = 0, + ECP_TYPE_SHORT_WEIERSTRASS, /* y^2 = x^3 + a x + b */ + ECP_TYPE_MONTGOMERY, /* y^2 = x^3 + a x^2 + x */ +} ecp_curve_type; + +/* + * List of supported curves: + * - internal ID + * - TLS NamedCurve ID (RFC 4492 sec. 5.1.1, RFC 7071 sec. 2) + * - size in bits + * - readable name + * + * Curves are listed in order: largest curves first, and for a given size, + * fastest curves first. This provides the default order for the SSL module. + * + * Reminder: update profiles in x509_crt.c when adding a new curves! + */ +static const mbedtls_ecp_curve_info ecp_supported_curves[] = +{ +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) + { MBEDTLS_ECP_DP_SECP521R1, 25, 521, "secp521r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) + { MBEDTLS_ECP_DP_BP512R1, 28, 512, "brainpoolP512r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) + { MBEDTLS_ECP_DP_SECP384R1, 24, 384, "secp384r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) + { MBEDTLS_ECP_DP_BP384R1, 27, 384, "brainpoolP384r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) + { MBEDTLS_ECP_DP_SECP256R1, 23, 256, "secp256r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) + { MBEDTLS_ECP_DP_SECP256K1, 22, 256, "secp256k1" }, +#endif +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) + { MBEDTLS_ECP_DP_BP256R1, 26, 256, "brainpoolP256r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) + { MBEDTLS_ECP_DP_SECP224R1, 21, 224, "secp224r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) + { MBEDTLS_ECP_DP_SECP224K1, 20, 224, "secp224k1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) + { MBEDTLS_ECP_DP_SECP192R1, 19, 192, "secp192r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) + { MBEDTLS_ECP_DP_SECP192K1, 18, 192, "secp192k1" }, +#endif + { MBEDTLS_ECP_DP_NONE, 0, 0, NULL }, +}; + +#define ECP_NB_CURVES sizeof( ecp_supported_curves ) / \ + sizeof( ecp_supported_curves[0] ) + +static mbedtls_ecp_group_id ecp_supported_grp_id[ECP_NB_CURVES]; + +/* + * List of supported curves and associated info + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_list( void ) +{ + return( ecp_supported_curves ); +} + +/* + * List of supported curves, group ID only + */ +const mbedtls_ecp_group_id *mbedtls_ecp_grp_id_list( void ) +{ + static int init_done = 0; + + if( ! init_done ) + { + size_t i = 0; + const mbedtls_ecp_curve_info *curve_info; + + for( curve_info = mbedtls_ecp_curve_list(); + curve_info->grp_id != MBEDTLS_ECP_DP_NONE; + curve_info++ ) + { + ecp_supported_grp_id[i++] = curve_info->grp_id; + } + ecp_supported_grp_id[i] = MBEDTLS_ECP_DP_NONE; + + init_done = 1; + } + + return( ecp_supported_grp_id ); +} + +/* + * Get the curve info for the internal identifier + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_grp_id( mbedtls_ecp_group_id grp_id ) +{ + const mbedtls_ecp_curve_info *curve_info; + + for( curve_info = mbedtls_ecp_curve_list(); + curve_info->grp_id != MBEDTLS_ECP_DP_NONE; + curve_info++ ) + { + if( curve_info->grp_id == grp_id ) + return( curve_info ); + } + + return( NULL ); +} + +/* + * Get the curve info from the TLS identifier + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_tls_id( uint16_t tls_id ) +{ + const mbedtls_ecp_curve_info *curve_info; + + for( curve_info = mbedtls_ecp_curve_list(); + curve_info->grp_id != MBEDTLS_ECP_DP_NONE; + curve_info++ ) + { + if( curve_info->tls_id == tls_id ) + return( curve_info ); + } + + return( NULL ); +} + +/* + * Get the curve info from the name + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_name( const char *name ) +{ + const mbedtls_ecp_curve_info *curve_info; + + for( curve_info = mbedtls_ecp_curve_list(); + curve_info->grp_id != MBEDTLS_ECP_DP_NONE; + curve_info++ ) + { + if( strcmp( curve_info->name, name ) == 0 ) + return( curve_info ); + } + + return( NULL ); +} + +/* + * Get the type of a curve + */ +static inline ecp_curve_type ecp_get_type( const mbedtls_ecp_group *grp ) +{ + if( grp->G.X.p == NULL ) + return( ECP_TYPE_NONE ); + + if( grp->G.Y.p == NULL ) + return( ECP_TYPE_MONTGOMERY ); + else + return( ECP_TYPE_SHORT_WEIERSTRASS ); +} + +/* + * Initialize (the components of) a point + */ +void mbedtls_ecp_point_init( mbedtls_ecp_point *pt ) +{ + if( pt == NULL ) + return; + + mbedtls_mpi_init( &pt->X ); + mbedtls_mpi_init( &pt->Y ); + mbedtls_mpi_init( &pt->Z ); +} + +/* + * Initialize (the components of) a group + */ +void mbedtls_ecp_group_init( mbedtls_ecp_group *grp ) +{ + if( grp == NULL ) + return; + + memset( grp, 0, sizeof( mbedtls_ecp_group ) ); +} + +/* + * Initialize (the components of) a key pair + */ +void mbedtls_ecp_keypair_init( mbedtls_ecp_keypair *key ) +{ + if( key == NULL ) + return; + + mbedtls_ecp_group_init( &key->grp ); + mbedtls_mpi_init( &key->d ); + mbedtls_ecp_point_init( &key->Q ); +} + +/* + * Unallocate (the components of) a point + */ +void mbedtls_ecp_point_free( mbedtls_ecp_point *pt ) +{ + if( pt == NULL ) + return; + + mbedtls_mpi_free( &( pt->X ) ); + mbedtls_mpi_free( &( pt->Y ) ); + mbedtls_mpi_free( &( pt->Z ) ); +} + +/* + * Unallocate (the components of) a group + */ +void mbedtls_ecp_group_free( mbedtls_ecp_group *grp ) +{ + size_t i; + + if( grp == NULL ) + return; + + if( grp->h != 1 ) + { + mbedtls_mpi_free( &grp->P ); + mbedtls_mpi_free( &grp->A ); + mbedtls_mpi_free( &grp->B ); + mbedtls_ecp_point_free( &grp->G ); + mbedtls_mpi_free( &grp->N ); + } + + if( grp->T != NULL ) + { + for( i = 0; i < grp->T_size; i++ ) + mbedtls_ecp_point_free( &grp->T[i] ); + mbedtls_free( grp->T ); + } + + mbedtls_zeroize( grp, sizeof( mbedtls_ecp_group ) ); +} + +/* + * Unallocate (the components of) a key pair + */ +void mbedtls_ecp_keypair_free( mbedtls_ecp_keypair *key ) +{ + if( key == NULL ) + return; + + mbedtls_ecp_group_free( &key->grp ); + mbedtls_mpi_free( &key->d ); + mbedtls_ecp_point_free( &key->Q ); +} + +/* + * Copy the contents of a point + */ +int mbedtls_ecp_copy( mbedtls_ecp_point *P, const mbedtls_ecp_point *Q ) +{ + int ret; + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &P->X, &Q->X ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &P->Y, &Q->Y ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &P->Z, &Q->Z ) ); + +cleanup: + return( ret ); +} + +/* + * Copy the contents of a group object + */ +int mbedtls_ecp_group_copy( mbedtls_ecp_group *dst, const mbedtls_ecp_group *src ) +{ + return mbedtls_ecp_group_load( dst, src->id ); +} + +/* + * Set point to zero + */ +int mbedtls_ecp_set_zero( mbedtls_ecp_point *pt ) +{ + int ret; + + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->X , 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Y , 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Z , 0 ) ); + +cleanup: + return( ret ); +} + +/* + * Tell if a point is zero + */ +int mbedtls_ecp_is_zero( mbedtls_ecp_point *pt ) +{ + return( mbedtls_mpi_cmp_int( &pt->Z, 0 ) == 0 ); +} + +/* + * Compare two points lazyly + */ +int mbedtls_ecp_point_cmp( const mbedtls_ecp_point *P, + const mbedtls_ecp_point *Q ) +{ + if( mbedtls_mpi_cmp_mpi( &P->X, &Q->X ) == 0 && + mbedtls_mpi_cmp_mpi( &P->Y, &Q->Y ) == 0 && + mbedtls_mpi_cmp_mpi( &P->Z, &Q->Z ) == 0 ) + { + return( 0 ); + } + + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); +} + +/* + * Import a non-zero point from ASCII strings + */ +int mbedtls_ecp_point_read_string( mbedtls_ecp_point *P, int radix, + const char *x, const char *y ) +{ + int ret; + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &P->X, radix, x ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &P->Y, radix, y ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &P->Z, 1 ) ); + +cleanup: + return( ret ); +} + +/* + * Export a point into unsigned binary data (SEC1 2.3.3) + */ +int mbedtls_ecp_point_write_binary( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *P, + int format, size_t *olen, + unsigned char *buf, size_t buflen ) +{ + int ret = 0; + size_t plen; + + if( format != MBEDTLS_ECP_PF_UNCOMPRESSED && + format != MBEDTLS_ECP_PF_COMPRESSED ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * Common case: P == 0 + */ + if( mbedtls_mpi_cmp_int( &P->Z, 0 ) == 0 ) + { + if( buflen < 1 ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + buf[0] = 0x00; + *olen = 1; + + return( 0 ); + } + + plen = mbedtls_mpi_size( &grp->P ); + + if( format == MBEDTLS_ECP_PF_UNCOMPRESSED ) + { + *olen = 2 * plen + 1; + + if( buflen < *olen ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + buf[0] = 0x04; + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &P->X, buf + 1, plen ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &P->Y, buf + 1 + plen, plen ) ); + } + else if( format == MBEDTLS_ECP_PF_COMPRESSED ) + { + *olen = plen + 1; + + if( buflen < *olen ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + buf[0] = 0x02 + mbedtls_mpi_get_bit( &P->Y, 0 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &P->X, buf + 1, plen ) ); + } + +cleanup: + return( ret ); +} + +/* + * Import a point from unsigned binary data (SEC1 2.3.4) + */ +int mbedtls_ecp_point_read_binary( const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt, + const unsigned char *buf, size_t ilen ) +{ + int ret; + size_t plen; + + if( ilen < 1 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( buf[0] == 0x00 ) + { + if( ilen == 1 ) + return( mbedtls_ecp_set_zero( pt ) ); + else + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + } + + plen = mbedtls_mpi_size( &grp->P ); + + if( buf[0] != 0x04 ) + return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE ); + + if( ilen != 2 * plen + 1 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &pt->X, buf + 1, plen ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &pt->Y, buf + 1 + plen, plen ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Z, 1 ) ); + +cleanup: + return( ret ); +} + +/* + * Import a point from a TLS ECPoint record (RFC 4492) + * struct { + * opaque point <1..2^8-1>; + * } ECPoint; + */ +int mbedtls_ecp_tls_read_point( const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt, + const unsigned char **buf, size_t buf_len ) +{ + unsigned char data_len; + const unsigned char *buf_start; + + /* + * We must have at least two bytes (1 for length, at least one for data) + */ + if( buf_len < 2 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + data_len = *(*buf)++; + if( data_len < 1 || data_len > buf_len - 1 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * Save buffer start for read_binary and update buf + */ + buf_start = *buf; + *buf += data_len; + + return mbedtls_ecp_point_read_binary( grp, pt, buf_start, data_len ); +} + +/* + * Export a point as a TLS ECPoint record (RFC 4492) + * struct { + * opaque point <1..2^8-1>; + * } ECPoint; + */ +int mbedtls_ecp_tls_write_point( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt, + int format, size_t *olen, + unsigned char *buf, size_t blen ) +{ + int ret; + + /* + * buffer length must be at least one, for our length byte + */ + if( blen < 1 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_ecp_point_write_binary( grp, pt, format, + olen, buf + 1, blen - 1) ) != 0 ) + return( ret ); + + /* + * write length to the first byte and update total length + */ + buf[0] = (unsigned char) *olen; + ++*olen; + + return( 0 ); +} + +/* + * Set a group from an ECParameters record (RFC 4492) + */ +int mbedtls_ecp_tls_read_group( mbedtls_ecp_group *grp, const unsigned char **buf, size_t len ) +{ + uint16_t tls_id; + const mbedtls_ecp_curve_info *curve_info; + + /* + * We expect at least three bytes (see below) + */ + if( len < 3 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * First byte is curve_type; only named_curve is handled + */ + if( *(*buf)++ != MBEDTLS_ECP_TLS_NAMED_CURVE ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * Next two bytes are the namedcurve value + */ + tls_id = *(*buf)++; + tls_id <<= 8; + tls_id |= *(*buf)++; + + if( ( curve_info = mbedtls_ecp_curve_info_from_tls_id( tls_id ) ) == NULL ) + return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE ); + + return mbedtls_ecp_group_load( grp, curve_info->grp_id ); +} + +/* + * Write the ECParameters record corresponding to a group (RFC 4492) + */ +int mbedtls_ecp_tls_write_group( const mbedtls_ecp_group *grp, size_t *olen, + unsigned char *buf, size_t blen ) +{ + const mbedtls_ecp_curve_info *curve_info; + + if( ( curve_info = mbedtls_ecp_curve_info_from_grp_id( grp->id ) ) == NULL ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * We are going to write 3 bytes (see below) + */ + *olen = 3; + if( blen < *olen ) + return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL ); + + /* + * First byte is curve_type, always named_curve + */ + *buf++ = MBEDTLS_ECP_TLS_NAMED_CURVE; + + /* + * Next two bytes are the namedcurve value + */ + buf[0] = curve_info->tls_id >> 8; + buf[1] = curve_info->tls_id & 0xFF; + + return( 0 ); +} + +/* + * Wrapper around fast quasi-modp functions, with fall-back to mbedtls_mpi_mod_mpi. + * See the documentation of struct mbedtls_ecp_group. + * + * This function is in the critial loop for mbedtls_ecp_mul, so pay attention to perf. + */ +static int ecp_modp( mbedtls_mpi *N, const mbedtls_ecp_group *grp ) +{ + int ret; + + if( grp->modp == NULL ) + return( mbedtls_mpi_mod_mpi( N, N, &grp->P ) ); + + /* N->s < 0 is a much faster test, which fails only if N is 0 */ + if( ( N->s < 0 && mbedtls_mpi_cmp_int( N, 0 ) != 0 ) || + mbedtls_mpi_bitlen( N ) > 2 * grp->pbits ) + { + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + } + + MBEDTLS_MPI_CHK( grp->modp( N ) ); + + /* N->s < 0 is a much faster test, which fails only if N is 0 */ + while( N->s < 0 && mbedtls_mpi_cmp_int( N, 0 ) != 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( N, N, &grp->P ) ); + + while( mbedtls_mpi_cmp_mpi( N, &grp->P ) >= 0 ) + /* we known P, N and the result are positive */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( N, N, &grp->P ) ); + +cleanup: + return( ret ); +} + +/* + * Fast mod-p functions expect their argument to be in the 0..p^2 range. + * + * In order to guarantee that, we need to ensure that operands of + * mbedtls_mpi_mul_mpi are in the 0..p range. So, after each operation we will + * bring the result back to this range. + * + * The following macros are shortcuts for doing that. + */ + +/* + * Reduce a mbedtls_mpi mod p in-place, general case, to use after mbedtls_mpi_mul_mpi + */ +#if defined(MBEDTLS_SELF_TEST) +#define INC_MUL_COUNT mul_count++; +#else +#define INC_MUL_COUNT +#endif + +#define MOD_MUL( N ) do { MBEDTLS_MPI_CHK( ecp_modp( &N, grp ) ); INC_MUL_COUNT } \ + while( 0 ) + +/* + * Reduce a mbedtls_mpi mod p in-place, to use after mbedtls_mpi_sub_mpi + * N->s < 0 is a very fast test, which fails only if N is 0 + */ +#define MOD_SUB( N ) \ + while( N.s < 0 && mbedtls_mpi_cmp_int( &N, 0 ) != 0 ) \ + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &N, &N, &grp->P ) ) + +/* + * Reduce a mbedtls_mpi mod p in-place, to use after mbedtls_mpi_add_mpi and mbedtls_mpi_mul_int. + * We known P, N and the result are positive, so sub_abs is correct, and + * a bit faster. + */ +#define MOD_ADD( N ) \ + while( mbedtls_mpi_cmp_mpi( &N, &grp->P ) >= 0 ) \ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &N, &N, &grp->P ) ) + +#if defined(ECP_SHORTWEIERSTRASS) +/* + * For curves in short Weierstrass form, we do all the internal operations in + * Jacobian coordinates. + * + * For multiplication, we'll use a comb method with coutermeasueres against + * SPA, hence timing attacks. + */ + +/* + * Normalize jacobian coordinates so that Z == 0 || Z == 1 (GECC 3.2.1) + * Cost: 1N := 1I + 3M + 1S + */ +static int ecp_normalize_jac( const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt ) +{ + int ret; + mbedtls_mpi Zi, ZZi; + + if( mbedtls_mpi_cmp_int( &pt->Z, 0 ) == 0 ) + return( 0 ); + + mbedtls_mpi_init( &Zi ); mbedtls_mpi_init( &ZZi ); + + /* + * X = X / Z^2 mod p + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &Zi, &pt->Z, &grp->P ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ZZi, &Zi, &Zi ) ); MOD_MUL( ZZi ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->X, &pt->X, &ZZi ) ); MOD_MUL( pt->X ); + + /* + * Y = Y / Z^3 mod p + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Y, &pt->Y, &ZZi ) ); MOD_MUL( pt->Y ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Y, &pt->Y, &Zi ) ); MOD_MUL( pt->Y ); + + /* + * Z = 1 + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Z, 1 ) ); + +cleanup: + + mbedtls_mpi_free( &Zi ); mbedtls_mpi_free( &ZZi ); + + return( ret ); +} + +/* + * Normalize jacobian coordinates of an array of (pointers to) points, + * using Montgomery's trick to perform only one inversion mod P. + * (See for example Cohen's "A Course in Computational Algebraic Number + * Theory", Algorithm 10.3.4.) + * + * Warning: fails (returning an error) if one of the points is zero! + * This should never happen, see choice of w in ecp_mul_comb(). + * + * Cost: 1N(t) := 1I + (6t - 3)M + 1S + */ +static int ecp_normalize_jac_many( const mbedtls_ecp_group *grp, + mbedtls_ecp_point *T[], size_t t_len ) +{ + int ret; + size_t i; + mbedtls_mpi *c, u, Zi, ZZi; + + if( t_len < 2 ) + return( ecp_normalize_jac( grp, *T ) ); + + if( ( c = mbedtls_calloc( t_len, sizeof( mbedtls_mpi ) ) ) == NULL ) + return( MBEDTLS_ERR_ECP_ALLOC_FAILED ); + + mbedtls_mpi_init( &u ); mbedtls_mpi_init( &Zi ); mbedtls_mpi_init( &ZZi ); + + /* + * c[i] = Z_0 * ... * Z_i + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &c[0], &T[0]->Z ) ); + for( i = 1; i < t_len; i++ ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &c[i], &c[i-1], &T[i]->Z ) ); + MOD_MUL( c[i] ); + } + + /* + * u = 1 / (Z_0 * ... * Z_n) mod P + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &u, &c[t_len-1], &grp->P ) ); + + for( i = t_len - 1; ; i-- ) + { + /* + * Zi = 1 / Z_i mod p + * u = 1 / (Z_0 * ... * Z_i) mod P + */ + if( i == 0 ) { + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Zi, &u ) ); + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &Zi, &u, &c[i-1] ) ); MOD_MUL( Zi ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &u, &u, &T[i]->Z ) ); MOD_MUL( u ); + } + + /* + * proceed as in normalize() + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ZZi, &Zi, &Zi ) ); MOD_MUL( ZZi ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T[i]->X, &T[i]->X, &ZZi ) ); MOD_MUL( T[i]->X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T[i]->Y, &T[i]->Y, &ZZi ) ); MOD_MUL( T[i]->Y ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T[i]->Y, &T[i]->Y, &Zi ) ); MOD_MUL( T[i]->Y ); + + /* + * Post-precessing: reclaim some memory by shrinking coordinates + * - not storing Z (always 1) + * - shrinking other coordinates, but still keeping the same number of + * limbs as P, as otherwise it will too likely be regrown too fast. + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_shrink( &T[i]->X, grp->P.n ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shrink( &T[i]->Y, grp->P.n ) ); + mbedtls_mpi_free( &T[i]->Z ); + + if( i == 0 ) + break; + } + +cleanup: + + mbedtls_mpi_free( &u ); mbedtls_mpi_free( &Zi ); mbedtls_mpi_free( &ZZi ); + for( i = 0; i < t_len; i++ ) + mbedtls_mpi_free( &c[i] ); + mbedtls_free( c ); + + return( ret ); +} + +/* + * Conditional point inversion: Q -> -Q = (Q.X, -Q.Y, Q.Z) without leak. + * "inv" must be 0 (don't invert) or 1 (invert) or the result will be invalid + */ +static int ecp_safe_invert_jac( const mbedtls_ecp_group *grp, + mbedtls_ecp_point *Q, + unsigned char inv ) +{ + int ret; + unsigned char nonzero; + mbedtls_mpi mQY; + + mbedtls_mpi_init( &mQY ); + + /* Use the fact that -Q.Y mod P = P - Q.Y unless Q.Y == 0 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &mQY, &grp->P, &Q->Y ) ); + nonzero = mbedtls_mpi_cmp_int( &Q->Y, 0 ) != 0; + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &Q->Y, &mQY, inv & nonzero ) ); + +cleanup: + mbedtls_mpi_free( &mQY ); + + return( ret ); +} + +/* + * Point doubling R = 2 P, Jacobian coordinates + * + * Based on http://www.hyperelliptic.org/EFD/g1p/auto-shortw-jacobian.html#doubling-dbl-1998-cmo-2 . + * + * We follow the variable naming fairly closely. The formula variations that trade a MUL for a SQR + * (plus a few ADDs) aren't useful as our bignum implementation doesn't distinguish squaring. + * + * Standard optimizations are applied when curve parameter A is one of { 0, -3 }. + * + * Cost: 1D := 3M + 4S (A == 0) + * 4M + 4S (A == -3) + * 3M + 6S + 1a otherwise + */ +static int ecp_double_jac( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_ecp_point *P ) +{ + int ret; + mbedtls_mpi M, S, T, U; + +#if defined(MBEDTLS_SELF_TEST) + dbl_count++; +#endif + + mbedtls_mpi_init( &M ); mbedtls_mpi_init( &S ); mbedtls_mpi_init( &T ); mbedtls_mpi_init( &U ); + + /* Special case for A = -3 */ + if( grp->A.p == NULL ) + { + /* M = 3(X + Z^2)(X - Z^2) */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->Z, &P->Z ) ); MOD_MUL( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &T, &P->X, &S ) ); MOD_ADD( T ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U, &P->X, &S ) ); MOD_SUB( U ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &T, &U ) ); MOD_MUL( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &M, &S, 3 ) ); MOD_ADD( M ); + } + else + { + /* M = 3.X^2 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->X, &P->X ) ); MOD_MUL( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &M, &S, 3 ) ); MOD_ADD( M ); + + /* Optimize away for "koblitz" curves with A = 0 */ + if( mbedtls_mpi_cmp_int( &grp->A, 0 ) != 0 ) + { + /* M += A.Z^4 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->Z, &P->Z ) ); MOD_MUL( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &S, &S ) ); MOD_MUL( T ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &T, &grp->A ) ); MOD_MUL( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &M, &M, &S ) ); MOD_ADD( M ); + } + } + + /* S = 4.X.Y^2 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &P->Y, &P->Y ) ); MOD_MUL( T ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T, 1 ) ); MOD_ADD( T ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->X, &T ) ); MOD_MUL( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &S, 1 ) ); MOD_ADD( S ); + + /* U = 8.Y^4 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &U, &T, &T ) ); MOD_MUL( U ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &U, 1 ) ); MOD_ADD( U ); + + /* T = M^2 - 2.S */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &M, &M ) ); MOD_MUL( T ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &T, &S ) ); MOD_SUB( T ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &T, &S ) ); MOD_SUB( T ); + + /* S = M(S - T) - U */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &S, &S, &T ) ); MOD_SUB( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &S, &M ) ); MOD_MUL( S ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &S, &S, &U ) ); MOD_SUB( S ); + + /* U = 2.Y.Z */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &U, &P->Y, &P->Z ) ); MOD_MUL( U ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &U, 1 ) ); MOD_ADD( U ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->X, &T ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Y, &S ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Z, &U ) ); + +cleanup: + mbedtls_mpi_free( &M ); mbedtls_mpi_free( &S ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &U ); + + return( ret ); +} + +/* + * Addition: R = P + Q, mixed affine-Jacobian coordinates (GECC 3.22) + * + * The coordinates of Q must be normalized (= affine), + * but those of P don't need to. R is not normalized. + * + * Special cases: (1) P or Q is zero, (2) R is zero, (3) P == Q. + * None of these cases can happen as intermediate step in ecp_mul_comb(): + * - at each step, P, Q and R are multiples of the base point, the factor + * being less than its order, so none of them is zero; + * - Q is an odd multiple of the base point, P an even multiple, + * due to the choice of precomputed points in the modified comb method. + * So branches for these cases do not leak secret information. + * + * We accept Q->Z being unset (saving memory in tables) as meaning 1. + * + * Cost: 1A := 8M + 3S + */ +static int ecp_add_mixed( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_ecp_point *P, const mbedtls_ecp_point *Q ) +{ + int ret; + mbedtls_mpi T1, T2, T3, T4, X, Y, Z; + +#if defined(MBEDTLS_SELF_TEST) + add_count++; +#endif + + /* + * Trivial cases: P == 0 or Q == 0 (case 1) + */ + if( mbedtls_mpi_cmp_int( &P->Z, 0 ) == 0 ) + return( mbedtls_ecp_copy( R, Q ) ); + + if( Q->Z.p != NULL && mbedtls_mpi_cmp_int( &Q->Z, 0 ) == 0 ) + return( mbedtls_ecp_copy( R, P ) ); + + /* + * Make sure Q coordinates are normalized + */ + if( Q->Z.p != NULL && mbedtls_mpi_cmp_int( &Q->Z, 1 ) != 0 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &T1 ); mbedtls_mpi_init( &T2 ); mbedtls_mpi_init( &T3 ); mbedtls_mpi_init( &T4 ); + mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &Z ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &P->Z, &P->Z ) ); MOD_MUL( T1 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T2, &T1, &P->Z ) ); MOD_MUL( T2 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &T1, &Q->X ) ); MOD_MUL( T1 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T2, &T2, &Q->Y ) ); MOD_MUL( T2 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T1, &T1, &P->X ) ); MOD_SUB( T1 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T2, &T2, &P->Y ) ); MOD_SUB( T2 ); + + /* Special cases (2) and (3) */ + if( mbedtls_mpi_cmp_int( &T1, 0 ) == 0 ) + { + if( mbedtls_mpi_cmp_int( &T2, 0 ) == 0 ) + { + ret = ecp_double_jac( grp, R, P ); + goto cleanup; + } + else + { + ret = mbedtls_ecp_set_zero( R ); + goto cleanup; + } + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &Z, &P->Z, &T1 ) ); MOD_MUL( Z ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T3, &T1, &T1 ) ); MOD_MUL( T3 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T4, &T3, &T1 ) ); MOD_MUL( T4 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T3, &T3, &P->X ) ); MOD_MUL( T3 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &T3, 2 ) ); MOD_ADD( T1 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &X, &T2, &T2 ) ); MOD_MUL( X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &T1 ) ); MOD_SUB( X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &T4 ) ); MOD_SUB( X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T3, &T3, &X ) ); MOD_SUB( T3 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T3, &T3, &T2 ) ); MOD_MUL( T3 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T4, &T4, &P->Y ) ); MOD_MUL( T4 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &Y, &T3, &T4 ) ); MOD_SUB( Y ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->X, &X ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Y, &Y ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Z, &Z ) ); + +cleanup: + + mbedtls_mpi_free( &T1 ); mbedtls_mpi_free( &T2 ); mbedtls_mpi_free( &T3 ); mbedtls_mpi_free( &T4 ); + mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &Z ); + + return( ret ); +} + +/* + * Randomize jacobian coordinates: + * (X, Y, Z) -> (l^2 X, l^3 Y, l Z) for random l + * This is sort of the reverse operation of ecp_normalize_jac(). + * + * This countermeasure was first suggested in [2]. + */ +static int ecp_randomize_jac( const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret; + mbedtls_mpi l, ll; + size_t p_size = ( grp->pbits + 7 ) / 8; + int count = 0; + + mbedtls_mpi_init( &l ); mbedtls_mpi_init( &ll ); + + /* Generate l such that 1 < l < p */ + do + { + mbedtls_mpi_fill_random( &l, p_size, f_rng, p_rng ); + + while( mbedtls_mpi_cmp_mpi( &l, &grp->P ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &l, 1 ) ); + + if( count++ > 10 ) + return( MBEDTLS_ERR_ECP_RANDOM_FAILED ); + } + while( mbedtls_mpi_cmp_int( &l, 1 ) <= 0 ); + + /* Z = l * Z */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Z, &pt->Z, &l ) ); MOD_MUL( pt->Z ); + + /* X = l^2 * X */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ll, &l, &l ) ); MOD_MUL( ll ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->X, &pt->X, &ll ) ); MOD_MUL( pt->X ); + + /* Y = l^3 * Y */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ll, &ll, &l ) ); MOD_MUL( ll ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Y, &pt->Y, &ll ) ); MOD_MUL( pt->Y ); + +cleanup: + mbedtls_mpi_free( &l ); mbedtls_mpi_free( &ll ); + + return( ret ); +} + +/* + * Check and define parameters used by the comb method (see below for details) + */ +#if MBEDTLS_ECP_WINDOW_SIZE < 2 || MBEDTLS_ECP_WINDOW_SIZE > 7 +#error "MBEDTLS_ECP_WINDOW_SIZE out of bounds" +#endif + +/* d = ceil( n / w ) */ +#define COMB_MAX_D ( MBEDTLS_ECP_MAX_BITS + 1 ) / 2 + +/* number of precomputed points */ +#define COMB_MAX_PRE ( 1 << ( MBEDTLS_ECP_WINDOW_SIZE - 1 ) ) + +/* + * Compute the representation of m that will be used with our comb method. + * + * The basic comb method is described in GECC 3.44 for example. We use a + * modified version that provides resistance to SPA by avoiding zero + * digits in the representation as in [3]. We modify the method further by + * requiring that all K_i be odd, which has the small cost that our + * representation uses one more K_i, due to carries. + * + * Also, for the sake of compactness, only the seven low-order bits of x[i] + * are used to represent K_i, and the msb of x[i] encodes the the sign (s_i in + * the paper): it is set if and only if if s_i == -1; + * + * Calling conventions: + * - x is an array of size d + 1 + * - w is the size, ie number of teeth, of the comb, and must be between + * 2 and 7 (in practice, between 2 and MBEDTLS_ECP_WINDOW_SIZE) + * - m is the MPI, expected to be odd and such that bitlength(m) <= w * d + * (the result will be incorrect if these assumptions are not satisfied) + */ +static void ecp_comb_fixed( unsigned char x[], size_t d, + unsigned char w, const mbedtls_mpi *m ) +{ + size_t i, j; + unsigned char c, cc, adjust; + + memset( x, 0, d+1 ); + + /* First get the classical comb values (except for x_d = 0) */ + for( i = 0; i < d; i++ ) + for( j = 0; j < w; j++ ) + x[i] |= mbedtls_mpi_get_bit( m, i + d * j ) << j; + + /* Now make sure x_1 .. x_d are odd */ + c = 0; + for( i = 1; i <= d; i++ ) + { + /* Add carry and update it */ + cc = x[i] & c; + x[i] = x[i] ^ c; + c = cc; + + /* Adjust if needed, avoiding branches */ + adjust = 1 - ( x[i] & 0x01 ); + c |= x[i] & ( x[i-1] * adjust ); + x[i] = x[i] ^ ( x[i-1] * adjust ); + x[i-1] |= adjust << 7; + } +} + +/* + * Precompute points for the comb method + * + * If i = i_{w-1} ... i_1 is the binary representation of i, then + * T[i] = i_{w-1} 2^{(w-1)d} P + ... + i_1 2^d P + P + * + * T must be able to hold 2^{w - 1} elements + * + * Cost: d(w-1) D + (2^{w-1} - 1) A + 1 N(w-1) + 1 N(2^{w-1} - 1) + */ +static int ecp_precompute_comb( const mbedtls_ecp_group *grp, + mbedtls_ecp_point T[], const mbedtls_ecp_point *P, + unsigned char w, size_t d ) +{ + int ret; + unsigned char i, k; + size_t j; + mbedtls_ecp_point *cur, *TT[COMB_MAX_PRE - 1]; + + /* + * Set T[0] = P and + * T[2^{l-1}] = 2^{dl} P for l = 1 .. w-1 (this is not the final value) + */ + MBEDTLS_MPI_CHK( mbedtls_ecp_copy( &T[0], P ) ); + + k = 0; + for( i = 1; i < ( 1U << ( w - 1 ) ); i <<= 1 ) + { + cur = T + i; + MBEDTLS_MPI_CHK( mbedtls_ecp_copy( cur, T + ( i >> 1 ) ) ); + for( j = 0; j < d; j++ ) + MBEDTLS_MPI_CHK( ecp_double_jac( grp, cur, cur ) ); + + TT[k++] = cur; + } + + MBEDTLS_MPI_CHK( ecp_normalize_jac_many( grp, TT, k ) ); + + /* + * Compute the remaining ones using the minimal number of additions + * Be careful to update T[2^l] only after using it! + */ + k = 0; + for( i = 1; i < ( 1U << ( w - 1 ) ); i <<= 1 ) + { + j = i; + while( j-- ) + { + MBEDTLS_MPI_CHK( ecp_add_mixed( grp, &T[i + j], &T[j], &T[i] ) ); + TT[k++] = &T[i + j]; + } + } + + MBEDTLS_MPI_CHK( ecp_normalize_jac_many( grp, TT, k ) ); + +cleanup: + return( ret ); +} + +/* + * Select precomputed point: R = sign(i) * T[ abs(i) / 2 ] + */ +static int ecp_select_comb( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_ecp_point T[], unsigned char t_len, + unsigned char i ) +{ + int ret; + unsigned char ii, j; + + /* Ignore the "sign" bit and scale down */ + ii = ( i & 0x7Fu ) >> 1; + + /* Read the whole table to thwart cache-based timing attacks */ + for( j = 0; j < t_len; j++ ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &R->X, &T[j].X, j == ii ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &R->Y, &T[j].Y, j == ii ) ); + } + + /* Safely invert result if i is "negative" */ + MBEDTLS_MPI_CHK( ecp_safe_invert_jac( grp, R, i >> 7 ) ); + +cleanup: + return( ret ); +} + +/* + * Core multiplication algorithm for the (modified) comb method. + * This part is actually common with the basic comb method (GECC 3.44) + * + * Cost: d A + d D + 1 R + */ +static int ecp_mul_comb_core( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_ecp_point T[], unsigned char t_len, + const unsigned char x[], size_t d, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + mbedtls_ecp_point Txi; + size_t i; + + mbedtls_ecp_point_init( &Txi ); + + /* Start with a non-zero point and randomize its coordinates */ + i = d; + MBEDTLS_MPI_CHK( ecp_select_comb( grp, R, T, t_len, x[i] ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->Z, 1 ) ); + if( f_rng != 0 ) + MBEDTLS_MPI_CHK( ecp_randomize_jac( grp, R, f_rng, p_rng ) ); + + while( i-- != 0 ) + { + MBEDTLS_MPI_CHK( ecp_double_jac( grp, R, R ) ); + MBEDTLS_MPI_CHK( ecp_select_comb( grp, &Txi, T, t_len, x[i] ) ); + MBEDTLS_MPI_CHK( ecp_add_mixed( grp, R, R, &Txi ) ); + } + +cleanup: + mbedtls_ecp_point_free( &Txi ); + + return( ret ); +} + +/* + * Multiplication using the comb method, + * for curves in short Weierstrass form + */ +static int ecp_mul_comb( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + unsigned char w, m_is_odd, p_eq_g, pre_len, i; + size_t d; + unsigned char k[COMB_MAX_D + 1]; + mbedtls_ecp_point *T; + mbedtls_mpi M, mm; + + mbedtls_mpi_init( &M ); + mbedtls_mpi_init( &mm ); + + /* we need N to be odd to trnaform m in an odd number, check now */ + if( mbedtls_mpi_get_bit( &grp->N, 0 ) != 1 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + /* + * Minimize the number of multiplications, that is minimize + * 10 * d * w + 18 * 2^(w-1) + 11 * d + 7 * w, with d = ceil( nbits / w ) + * (see costs of the various parts, with 1S = 1M) + */ + w = grp->nbits >= 384 ? 5 : 4; + + /* + * If P == G, pre-compute a bit more, since this may be re-used later. + * Just adding one avoids upping the cost of the first mul too much, + * and the memory cost too. + */ +#if MBEDTLS_ECP_FIXED_POINT_OPTIM == 1 + p_eq_g = ( mbedtls_mpi_cmp_mpi( &P->Y, &grp->G.Y ) == 0 && + mbedtls_mpi_cmp_mpi( &P->X, &grp->G.X ) == 0 ); + if( p_eq_g ) + w++; +#else + p_eq_g = 0; +#endif + + /* + * Make sure w is within bounds. + * (The last test is useful only for very small curves in the test suite.) + */ + if( w > MBEDTLS_ECP_WINDOW_SIZE ) + w = MBEDTLS_ECP_WINDOW_SIZE; + if( w >= grp->nbits ) + w = 2; + + /* Other sizes that depend on w */ + pre_len = 1U << ( w - 1 ); + d = ( grp->nbits + w - 1 ) / w; + + /* + * Prepare precomputed points: if P == G we want to + * use grp->T if already initialized, or initialize it. + */ + T = p_eq_g ? grp->T : NULL; + + if( T == NULL ) + { + T = mbedtls_calloc( pre_len, sizeof( mbedtls_ecp_point ) ); + if( T == NULL ) + { + ret = MBEDTLS_ERR_ECP_ALLOC_FAILED; + goto cleanup; + } + + MBEDTLS_MPI_CHK( ecp_precompute_comb( grp, T, P, w, d ) ); + + if( p_eq_g ) + { + grp->T = T; + grp->T_size = pre_len; + } + } + + /* + * Make sure M is odd (M = m or M = N - m, since N is odd) + * using the fact that m * P = - (N - m) * P + */ + m_is_odd = ( mbedtls_mpi_get_bit( m, 0 ) == 1 ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &M, m ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &mm, &grp->N, m ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &M, &mm, ! m_is_odd ) ); + + /* + * Go for comb multiplication, R = M * P + */ + ecp_comb_fixed( k, d, w, &M ); + MBEDTLS_MPI_CHK( ecp_mul_comb_core( grp, R, T, pre_len, k, d, f_rng, p_rng ) ); + + /* + * Now get m * P from M * P and normalize it + */ + MBEDTLS_MPI_CHK( ecp_safe_invert_jac( grp, R, ! m_is_odd ) ); + MBEDTLS_MPI_CHK( ecp_normalize_jac( grp, R ) ); + +cleanup: + + if( T != NULL && ! p_eq_g ) + { + for( i = 0; i < pre_len; i++ ) + mbedtls_ecp_point_free( &T[i] ); + mbedtls_free( T ); + } + + mbedtls_mpi_free( &M ); + mbedtls_mpi_free( &mm ); + + if( ret != 0 ) + mbedtls_ecp_point_free( R ); + + return( ret ); +} + +#endif /* ECP_SHORTWEIERSTRASS */ + +#if defined(ECP_MONTGOMERY) +/* + * For Montgomery curves, we do all the internal arithmetic in projective + * coordinates. Import/export of points uses only the x coordinates, which is + * internaly represented as X / Z. + * + * For scalar multiplication, we'll use a Montgomery ladder. + */ + +/* + * Normalize Montgomery x/z coordinates: X = X/Z, Z = 1 + * Cost: 1M + 1I + */ +static int ecp_normalize_mxz( const mbedtls_ecp_group *grp, mbedtls_ecp_point *P ) +{ + int ret; + + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &P->Z, &P->Z, &grp->P ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &P->X, &P->X, &P->Z ) ); MOD_MUL( P->X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &P->Z, 1 ) ); + +cleanup: + return( ret ); +} + +/* + * Randomize projective x/z coordinates: + * (X, Z) -> (l X, l Z) for random l + * This is sort of the reverse operation of ecp_normalize_mxz(). + * + * This countermeasure was first suggested in [2]. + * Cost: 2M + */ +static int ecp_randomize_mxz( const mbedtls_ecp_group *grp, mbedtls_ecp_point *P, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret; + mbedtls_mpi l; + size_t p_size = ( grp->pbits + 7 ) / 8; + int count = 0; + + mbedtls_mpi_init( &l ); + + /* Generate l such that 1 < l < p */ + do + { + mbedtls_mpi_fill_random( &l, p_size, f_rng, p_rng ); + + while( mbedtls_mpi_cmp_mpi( &l, &grp->P ) >= 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &l, 1 ) ); + + if( count++ > 10 ) + return( MBEDTLS_ERR_ECP_RANDOM_FAILED ); + } + while( mbedtls_mpi_cmp_int( &l, 1 ) <= 0 ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &P->X, &P->X, &l ) ); MOD_MUL( P->X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &P->Z, &P->Z, &l ) ); MOD_MUL( P->Z ); + +cleanup: + mbedtls_mpi_free( &l ); + + return( ret ); +} + +/* + * Double-and-add: R = 2P, S = P + Q, with d = X(P - Q), + * for Montgomery curves in x/z coordinates. + * + * http://www.hyperelliptic.org/EFD/g1p/auto-code/montgom/xz/ladder/mladd-1987-m.op3 + * with + * d = X1 + * P = (X2, Z2) + * Q = (X3, Z3) + * R = (X4, Z4) + * S = (X5, Z5) + * and eliminating temporary variables tO, ..., t4. + * + * Cost: 5M + 4S + */ +static int ecp_double_add_mxz( const mbedtls_ecp_group *grp, + mbedtls_ecp_point *R, mbedtls_ecp_point *S, + const mbedtls_ecp_point *P, const mbedtls_ecp_point *Q, + const mbedtls_mpi *d ) +{ + int ret; + mbedtls_mpi A, AA, B, BB, E, C, D, DA, CB; + + mbedtls_mpi_init( &A ); mbedtls_mpi_init( &AA ); mbedtls_mpi_init( &B ); + mbedtls_mpi_init( &BB ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &C ); + mbedtls_mpi_init( &D ); mbedtls_mpi_init( &DA ); mbedtls_mpi_init( &CB ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &A, &P->X, &P->Z ) ); MOD_ADD( A ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &AA, &A, &A ) ); MOD_MUL( AA ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &B, &P->X, &P->Z ) ); MOD_SUB( B ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &BB, &B, &B ) ); MOD_MUL( BB ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &E, &AA, &BB ) ); MOD_SUB( E ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &C, &Q->X, &Q->Z ) ); MOD_ADD( C ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &D, &Q->X, &Q->Z ) ); MOD_SUB( D ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DA, &D, &A ) ); MOD_MUL( DA ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &CB, &C, &B ) ); MOD_MUL( CB ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &S->X, &DA, &CB ) ); MOD_MUL( S->X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S->X, &S->X, &S->X ) ); MOD_MUL( S->X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &S->Z, &DA, &CB ) ); MOD_SUB( S->Z ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S->Z, &S->Z, &S->Z ) ); MOD_MUL( S->Z ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S->Z, d, &S->Z ) ); MOD_MUL( S->Z ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &R->X, &AA, &BB ) ); MOD_MUL( R->X ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &R->Z, &grp->A, &E ) ); MOD_MUL( R->Z ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &R->Z, &BB, &R->Z ) ); MOD_ADD( R->Z ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &R->Z, &E, &R->Z ) ); MOD_MUL( R->Z ); + +cleanup: + mbedtls_mpi_free( &A ); mbedtls_mpi_free( &AA ); mbedtls_mpi_free( &B ); + mbedtls_mpi_free( &BB ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &C ); + mbedtls_mpi_free( &D ); mbedtls_mpi_free( &DA ); mbedtls_mpi_free( &CB ); + + return( ret ); +} + +/* + * Multiplication with Montgomery ladder in x/z coordinates, + * for curves in Montgomery form + */ +static int ecp_mul_mxz( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + size_t i; + unsigned char b; + mbedtls_ecp_point RP; + mbedtls_mpi PX; + + mbedtls_ecp_point_init( &RP ); mbedtls_mpi_init( &PX ); + + /* Save PX and read from P before writing to R, in case P == R */ + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &PX, &P->X ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_copy( &RP, P ) ); + + /* Set R to zero in modified x/z coordinates */ + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->X, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->Z, 0 ) ); + mbedtls_mpi_free( &R->Y ); + + /* RP.X might be sligtly larger than P, so reduce it */ + MOD_ADD( RP.X ); + + /* Randomize coordinates of the starting point */ + if( f_rng != NULL ) + MBEDTLS_MPI_CHK( ecp_randomize_mxz( grp, &RP, f_rng, p_rng ) ); + + /* Loop invariant: R = result so far, RP = R + P */ + i = mbedtls_mpi_bitlen( m ); /* one past the (zero-based) most significant bit */ + while( i-- > 0 ) + { + b = mbedtls_mpi_get_bit( m, i ); + /* + * if (b) R = 2R + P else R = 2R, + * which is: + * if (b) double_add( RP, R, RP, R ) + * else double_add( R, RP, R, RP ) + * but using safe conditional swaps to avoid leaks + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->X, &RP.X, b ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->Z, &RP.Z, b ) ); + MBEDTLS_MPI_CHK( ecp_double_add_mxz( grp, R, &RP, R, &RP, &PX ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->X, &RP.X, b ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->Z, &RP.Z, b ) ); + } + + MBEDTLS_MPI_CHK( ecp_normalize_mxz( grp, R ) ); + +cleanup: + mbedtls_ecp_point_free( &RP ); mbedtls_mpi_free( &PX ); + + return( ret ); +} + +#endif /* ECP_MONTGOMERY */ + +/* + * Multiplication R = m * P + */ +int mbedtls_ecp_mul( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret; + + /* Common sanity checks */ + if( mbedtls_mpi_cmp_int( &P->Z, 1 ) != 0 ) + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_ecp_check_privkey( grp, m ) ) != 0 || + ( ret = mbedtls_ecp_check_pubkey( grp, P ) ) != 0 ) + return( ret ); + +#if defined(ECP_MONTGOMERY) + if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY ) + return( ecp_mul_mxz( grp, R, m, P, f_rng, p_rng ) ); +#endif +#if defined(ECP_SHORTWEIERSTRASS) + if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS ) + return( ecp_mul_comb( grp, R, m, P, f_rng, p_rng ) ); +#endif + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); +} + +#if defined(ECP_SHORTWEIERSTRASS) +/* + * Check that an affine point is valid as a public key, + * short weierstrass curves (SEC1 3.2.3.1) + */ +static int ecp_check_pubkey_sw( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt ) +{ + int ret; + mbedtls_mpi YY, RHS; + + /* pt coordinates must be normalized for our checks */ + if( mbedtls_mpi_cmp_int( &pt->X, 0 ) < 0 || + mbedtls_mpi_cmp_int( &pt->Y, 0 ) < 0 || + mbedtls_mpi_cmp_mpi( &pt->X, &grp->P ) >= 0 || + mbedtls_mpi_cmp_mpi( &pt->Y, &grp->P ) >= 0 ) + return( MBEDTLS_ERR_ECP_INVALID_KEY ); + + mbedtls_mpi_init( &YY ); mbedtls_mpi_init( &RHS ); + + /* + * YY = Y^2 + * RHS = X (X^2 + A) + B = X^3 + A X + B + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &YY, &pt->Y, &pt->Y ) ); MOD_MUL( YY ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &RHS, &pt->X, &pt->X ) ); MOD_MUL( RHS ); + + /* Special case for A = -3 */ + if( grp->A.p == NULL ) + { + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &RHS, &RHS, 3 ) ); MOD_SUB( RHS ); + } + else + { + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &RHS, &RHS, &grp->A ) ); MOD_ADD( RHS ); + } + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &RHS, &RHS, &pt->X ) ); MOD_MUL( RHS ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &RHS, &RHS, &grp->B ) ); MOD_ADD( RHS ); + + if( mbedtls_mpi_cmp_mpi( &YY, &RHS ) != 0 ) + ret = MBEDTLS_ERR_ECP_INVALID_KEY; + +cleanup: + + mbedtls_mpi_free( &YY ); mbedtls_mpi_free( &RHS ); + + return( ret ); +} +#endif /* ECP_SHORTWEIERSTRASS */ + +/* + * R = m * P with shortcuts for m == 1 and m == -1 + * NOT constant-time - ONLY for short Weierstrass! + */ +static int mbedtls_ecp_mul_shortcuts( mbedtls_ecp_group *grp, + mbedtls_ecp_point *R, + const mbedtls_mpi *m, + const mbedtls_ecp_point *P ) +{ + int ret; + + if( mbedtls_mpi_cmp_int( m, 1 ) == 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) ); + } + else if( mbedtls_mpi_cmp_int( m, -1 ) == 0 ) + { + MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) ); + if( mbedtls_mpi_cmp_int( &R->Y, 0 ) != 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &R->Y, &grp->P, &R->Y ) ); + } + else + { + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( grp, R, m, P, NULL, NULL ) ); + } + +cleanup: + return( ret ); +} + +/* + * Linear combination + * NOT constant-time + */ +int mbedtls_ecp_muladd( mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + const mbedtls_mpi *n, const mbedtls_ecp_point *Q ) +{ + int ret; + mbedtls_ecp_point mP; + + if( ecp_get_type( grp ) != ECP_TYPE_SHORT_WEIERSTRASS ) + return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE ); + + mbedtls_ecp_point_init( &mP ); + + MBEDTLS_MPI_CHK( mbedtls_ecp_mul_shortcuts( grp, &mP, m, P ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul_shortcuts( grp, R, n, Q ) ); + + MBEDTLS_MPI_CHK( ecp_add_mixed( grp, R, &mP, R ) ); + MBEDTLS_MPI_CHK( ecp_normalize_jac( grp, R ) ); + +cleanup: + mbedtls_ecp_point_free( &mP ); + + return( ret ); +} + + +#if defined(ECP_MONTGOMERY) +/* + * Check validity of a public key for Montgomery curves with x-only schemes + */ +static int ecp_check_pubkey_mx( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt ) +{ + /* [Curve25519 p. 5] Just check X is the correct number of bytes */ + if( mbedtls_mpi_size( &pt->X ) > ( grp->nbits + 7 ) / 8 ) + return( MBEDTLS_ERR_ECP_INVALID_KEY ); + + return( 0 ); +} +#endif /* ECP_MONTGOMERY */ + +/* + * Check that a point is valid as a public key + */ +int mbedtls_ecp_check_pubkey( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt ) +{ + /* Must use affine coordinates */ + if( mbedtls_mpi_cmp_int( &pt->Z, 1 ) != 0 ) + return( MBEDTLS_ERR_ECP_INVALID_KEY ); + +#if defined(ECP_MONTGOMERY) + if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY ) + return( ecp_check_pubkey_mx( grp, pt ) ); +#endif +#if defined(ECP_SHORTWEIERSTRASS) + if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS ) + return( ecp_check_pubkey_sw( grp, pt ) ); +#endif + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); +} + +/* + * Check that an mbedtls_mpi is valid as a private key + */ +int mbedtls_ecp_check_privkey( const mbedtls_ecp_group *grp, const mbedtls_mpi *d ) +{ +#if defined(ECP_MONTGOMERY) + if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY ) + { + /* see [Curve25519] page 5 */ + if( mbedtls_mpi_get_bit( d, 0 ) != 0 || + mbedtls_mpi_get_bit( d, 1 ) != 0 || + mbedtls_mpi_get_bit( d, 2 ) != 0 || + mbedtls_mpi_bitlen( d ) - 1 != grp->nbits ) /* mbedtls_mpi_bitlen is one-based! */ + return( MBEDTLS_ERR_ECP_INVALID_KEY ); + else + return( 0 ); + } +#endif /* ECP_MONTGOMERY */ +#if defined(ECP_SHORTWEIERSTRASS) + if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS ) + { + /* see SEC1 3.2 */ + if( mbedtls_mpi_cmp_int( d, 1 ) < 0 || + mbedtls_mpi_cmp_mpi( d, &grp->N ) >= 0 ) + return( MBEDTLS_ERR_ECP_INVALID_KEY ); + else + return( 0 ); + } +#endif /* ECP_SHORTWEIERSTRASS */ + + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); +} + +/* + * Generate a keypair with configurable base point + */ +int mbedtls_ecp_gen_keypair_base( mbedtls_ecp_group *grp, + const mbedtls_ecp_point *G, + mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + size_t n_size = ( grp->nbits + 7 ) / 8; + +#if defined(ECP_MONTGOMERY) + if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY ) + { + /* [M225] page 5 */ + size_t b; + + do { + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( d, n_size, f_rng, p_rng ) ); + } while( mbedtls_mpi_bitlen( d ) == 0); + + /* Make sure the most significant bit is nbits */ + b = mbedtls_mpi_bitlen( d ) - 1; /* mbedtls_mpi_bitlen is one-based */ + if( b > grp->nbits ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( d, b - grp->nbits ) ); + else + MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, grp->nbits, 1 ) ); + + /* Make sure the last three bits are unset */ + MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, 0, 0 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, 1, 0 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, 2, 0 ) ); + } + else +#endif /* ECP_MONTGOMERY */ +#if defined(ECP_SHORTWEIERSTRASS) + if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS ) + { + /* SEC1 3.2.1: Generate d such that 1 <= n < N */ + int count = 0; + unsigned char rnd[MBEDTLS_ECP_MAX_BYTES]; + + /* + * Match the procedure given in RFC 6979 (deterministic ECDSA): + * - use the same byte ordering; + * - keep the leftmost nbits bits of the generated octet string; + * - try until result is in the desired range. + * This also avoids any biais, which is especially important for ECDSA. + */ + do + { + MBEDTLS_MPI_CHK( f_rng( p_rng, rnd, n_size ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( d, rnd, n_size ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( d, 8 * n_size - grp->nbits ) ); + + /* + * Each try has at worst a probability 1/2 of failing (the msb has + * a probability 1/2 of being 0, and then the result will be < N), + * so after 30 tries failure probability is a most 2**(-30). + * + * For most curves, 1 try is enough with overwhelming probability, + * since N starts with a lot of 1s in binary, but some curves + * such as secp224k1 are actually very close to the worst case. + */ + if( ++count > 30 ) + return( MBEDTLS_ERR_ECP_RANDOM_FAILED ); + } + while( mbedtls_mpi_cmp_int( d, 1 ) < 0 || + mbedtls_mpi_cmp_mpi( d, &grp->N ) >= 0 ); + } + else +#endif /* ECP_SHORTWEIERSTRASS */ + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + +cleanup: + if( ret != 0 ) + return( ret ); + + return( mbedtls_ecp_mul( grp, Q, d, G, f_rng, p_rng ) ); +} + +/* + * Generate key pair, wrapper for conventional base point + */ +int mbedtls_ecp_gen_keypair( mbedtls_ecp_group *grp, + mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + return( mbedtls_ecp_gen_keypair_base( grp, &grp->G, d, Q, f_rng, p_rng ) ); +} + +/* + * Generate a keypair, prettier wrapper + */ +int mbedtls_ecp_gen_key( mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret; + + if( ( ret = mbedtls_ecp_group_load( &key->grp, grp_id ) ) != 0 ) + return( ret ); + + return( mbedtls_ecp_gen_keypair( &key->grp, &key->d, &key->Q, f_rng, p_rng ) ); +} + +/* + * Check a public-private key pair + */ +int mbedtls_ecp_check_pub_priv( const mbedtls_ecp_keypair *pub, const mbedtls_ecp_keypair *prv ) +{ + int ret; + mbedtls_ecp_point Q; + mbedtls_ecp_group grp; + + if( pub->grp.id == MBEDTLS_ECP_DP_NONE || + pub->grp.id != prv->grp.id || + mbedtls_mpi_cmp_mpi( &pub->Q.X, &prv->Q.X ) || + mbedtls_mpi_cmp_mpi( &pub->Q.Y, &prv->Q.Y ) || + mbedtls_mpi_cmp_mpi( &pub->Q.Z, &prv->Q.Z ) ) + { + return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA ); + } + + mbedtls_ecp_point_init( &Q ); + mbedtls_ecp_group_init( &grp ); + + /* mbedtls_ecp_mul() needs a non-const group... */ + mbedtls_ecp_group_copy( &grp, &prv->grp ); + + /* Also checks d is valid */ + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &Q, &prv->d, &prv->grp.G, NULL, NULL ) ); + + if( mbedtls_mpi_cmp_mpi( &Q.X, &prv->Q.X ) || + mbedtls_mpi_cmp_mpi( &Q.Y, &prv->Q.Y ) || + mbedtls_mpi_cmp_mpi( &Q.Z, &prv->Q.Z ) ) + { + ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA; + goto cleanup; + } + +cleanup: + mbedtls_ecp_point_free( &Q ); + mbedtls_ecp_group_free( &grp ); + + return( ret ); +} + +#if defined(MBEDTLS_SELF_TEST) + +/* + * Checkup routine + */ +int mbedtls_ecp_self_test( int verbose ) +{ + int ret; + size_t i; + mbedtls_ecp_group grp; + mbedtls_ecp_point R, P; + mbedtls_mpi m; + unsigned long add_c_prev, dbl_c_prev, mul_c_prev; + /* exponents especially adapted for secp192r1 */ + const char *exponents[] = + { + "000000000000000000000000000000000000000000000001", /* one */ + "FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22830", /* N - 1 */ + "5EA6F389A38B8BC81E767753B15AA5569E1782E30ABE7D25", /* random */ + "400000000000000000000000000000000000000000000000", /* one and zeros */ + "7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", /* all ones */ + "555555555555555555555555555555555555555555555555", /* 101010... */ + }; + + mbedtls_ecp_group_init( &grp ); + mbedtls_ecp_point_init( &R ); + mbedtls_ecp_point_init( &P ); + mbedtls_mpi_init( &m ); + + /* Use secp192r1 if available, or any available curve */ +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) + MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &grp, MBEDTLS_ECP_DP_SECP192R1 ) ); +#else + MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &grp, mbedtls_ecp_curve_list()->grp_id ) ); +#endif + + if( verbose != 0 ) + mbedtls_printf( " ECP test #1 (constant op_count, base point G): " ); + + /* Do a dummy multiplication first to trigger precomputation */ + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &m, 2 ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &P, &m, &grp.G, NULL, NULL ) ); + + add_count = 0; + dbl_count = 0; + mul_count = 0; + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[0] ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &grp.G, NULL, NULL ) ); + + for( i = 1; i < sizeof( exponents ) / sizeof( exponents[0] ); i++ ) + { + add_c_prev = add_count; + dbl_c_prev = dbl_count; + mul_c_prev = mul_count; + add_count = 0; + dbl_count = 0; + mul_count = 0; + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[i] ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &grp.G, NULL, NULL ) ); + + if( add_count != add_c_prev || + dbl_count != dbl_c_prev || + mul_count != mul_c_prev ) + { + if( verbose != 0 ) + mbedtls_printf( "failed (%u)\n", (unsigned int) i ); + + ret = 1; + goto cleanup; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " ECP test #2 (constant op_count, other point): " ); + /* We computed P = 2G last time, use it */ + + add_count = 0; + dbl_count = 0; + mul_count = 0; + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[0] ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &P, NULL, NULL ) ); + + for( i = 1; i < sizeof( exponents ) / sizeof( exponents[0] ); i++ ) + { + add_c_prev = add_count; + dbl_c_prev = dbl_count; + mul_c_prev = mul_count; + add_count = 0; + dbl_count = 0; + mul_count = 0; + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[i] ) ); + MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &P, NULL, NULL ) ); + + if( add_count != add_c_prev || + dbl_count != dbl_c_prev || + mul_count != mul_c_prev ) + { + if( verbose != 0 ) + mbedtls_printf( "failed (%u)\n", (unsigned int) i ); + + ret = 1; + goto cleanup; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + +cleanup: + + if( ret < 0 && verbose != 0 ) + mbedtls_printf( "Unexpected error, return code = %08X\n", ret ); + + mbedtls_ecp_group_free( &grp ); + mbedtls_ecp_point_free( &R ); + mbedtls_ecp_point_free( &P ); + mbedtls_mpi_free( &m ); + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_ECP_C */ diff --git a/mbedtls/ecp_curves.c b/mbedtls/ecp_curves.c new file mode 100644 index 0000000..9a6e8eb --- /dev/null +++ b/mbedtls/ecp_curves.c @@ -0,0 +1,1325 @@ +/* + * Elliptic curves over GF(p): curve-specific data and functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ECP_C) + +#include "mbedtls/ecp.h" + +#include + +#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +/* + * Conversion macros for embedded constants: + * build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2 + */ +#if defined(MBEDTLS_HAVE_INT32) + +#define BYTES_TO_T_UINT_4( a, b, c, d ) \ + ( (mbedtls_mpi_uint) a << 0 ) | \ + ( (mbedtls_mpi_uint) b << 8 ) | \ + ( (mbedtls_mpi_uint) c << 16 ) | \ + ( (mbedtls_mpi_uint) d << 24 ) + +#define BYTES_TO_T_UINT_2( a, b ) \ + BYTES_TO_T_UINT_4( a, b, 0, 0 ) + +#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \ + BYTES_TO_T_UINT_4( a, b, c, d ), \ + BYTES_TO_T_UINT_4( e, f, g, h ) + +#else /* 64-bits */ + +#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \ + ( (mbedtls_mpi_uint) a << 0 ) | \ + ( (mbedtls_mpi_uint) b << 8 ) | \ + ( (mbedtls_mpi_uint) c << 16 ) | \ + ( (mbedtls_mpi_uint) d << 24 ) | \ + ( (mbedtls_mpi_uint) e << 32 ) | \ + ( (mbedtls_mpi_uint) f << 40 ) | \ + ( (mbedtls_mpi_uint) g << 48 ) | \ + ( (mbedtls_mpi_uint) h << 56 ) + +#define BYTES_TO_T_UINT_4( a, b, c, d ) \ + BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 ) + +#define BYTES_TO_T_UINT_2( a, b ) \ + BYTES_TO_T_UINT_8( a, b, 0, 0, 0, 0, 0, 0 ) + +#endif /* bits in mbedtls_mpi_uint */ + +/* + * Note: the constants are in little-endian order + * to be directly usable in MPIs + */ + +/* + * Domain parameters for secp192r1 + */ +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) +static const mbedtls_mpi_uint secp192r1_p[] = { + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +static const mbedtls_mpi_uint secp192r1_b[] = { + BYTES_TO_T_UINT_8( 0xB1, 0xB9, 0x46, 0xC1, 0xEC, 0xDE, 0xB8, 0xFE ), + BYTES_TO_T_UINT_8( 0x49, 0x30, 0x24, 0x72, 0xAB, 0xE9, 0xA7, 0x0F ), + BYTES_TO_T_UINT_8( 0xE7, 0x80, 0x9C, 0xE5, 0x19, 0x05, 0x21, 0x64 ), +}; +static const mbedtls_mpi_uint secp192r1_gx[] = { + BYTES_TO_T_UINT_8( 0x12, 0x10, 0xFF, 0x82, 0xFD, 0x0A, 0xFF, 0xF4 ), + BYTES_TO_T_UINT_8( 0x00, 0x88, 0xA1, 0x43, 0xEB, 0x20, 0xBF, 0x7C ), + BYTES_TO_T_UINT_8( 0xF6, 0x90, 0x30, 0xB0, 0x0E, 0xA8, 0x8D, 0x18 ), +}; +static const mbedtls_mpi_uint secp192r1_gy[] = { + BYTES_TO_T_UINT_8( 0x11, 0x48, 0x79, 0x1E, 0xA1, 0x77, 0xF9, 0x73 ), + BYTES_TO_T_UINT_8( 0xD5, 0xCD, 0x24, 0x6B, 0xED, 0x11, 0x10, 0x63 ), + BYTES_TO_T_UINT_8( 0x78, 0xDA, 0xC8, 0xFF, 0x95, 0x2B, 0x19, 0x07 ), +}; +static const mbedtls_mpi_uint secp192r1_n[] = { + BYTES_TO_T_UINT_8( 0x31, 0x28, 0xD2, 0xB4, 0xB1, 0xC9, 0x6B, 0x14 ), + BYTES_TO_T_UINT_8( 0x36, 0xF8, 0xDE, 0x99, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */ + +/* + * Domain parameters for secp224r1 + */ +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) +static const mbedtls_mpi_uint secp224r1_p[] = { + BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ), + BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ), +}; +static const mbedtls_mpi_uint secp224r1_b[] = { + BYTES_TO_T_UINT_8( 0xB4, 0xFF, 0x55, 0x23, 0x43, 0x39, 0x0B, 0x27 ), + BYTES_TO_T_UINT_8( 0xBA, 0xD8, 0xBF, 0xD7, 0xB7, 0xB0, 0x44, 0x50 ), + BYTES_TO_T_UINT_8( 0x56, 0x32, 0x41, 0xF5, 0xAB, 0xB3, 0x04, 0x0C ), + BYTES_TO_T_UINT_4( 0x85, 0x0A, 0x05, 0xB4 ), +}; +static const mbedtls_mpi_uint secp224r1_gx[] = { + BYTES_TO_T_UINT_8( 0x21, 0x1D, 0x5C, 0x11, 0xD6, 0x80, 0x32, 0x34 ), + BYTES_TO_T_UINT_8( 0x22, 0x11, 0xC2, 0x56, 0xD3, 0xC1, 0x03, 0x4A ), + BYTES_TO_T_UINT_8( 0xB9, 0x90, 0x13, 0x32, 0x7F, 0xBF, 0xB4, 0x6B ), + BYTES_TO_T_UINT_4( 0xBD, 0x0C, 0x0E, 0xB7 ), +}; +static const mbedtls_mpi_uint secp224r1_gy[] = { + BYTES_TO_T_UINT_8( 0x34, 0x7E, 0x00, 0x85, 0x99, 0x81, 0xD5, 0x44 ), + BYTES_TO_T_UINT_8( 0x64, 0x47, 0x07, 0x5A, 0xA0, 0x75, 0x43, 0xCD ), + BYTES_TO_T_UINT_8( 0xE6, 0xDF, 0x22, 0x4C, 0xFB, 0x23, 0xF7, 0xB5 ), + BYTES_TO_T_UINT_4( 0x88, 0x63, 0x37, 0xBD ), +}; +static const mbedtls_mpi_uint secp224r1_n[] = { + BYTES_TO_T_UINT_8( 0x3D, 0x2A, 0x5C, 0x5C, 0x45, 0x29, 0xDD, 0x13 ), + BYTES_TO_T_UINT_8( 0x3E, 0xF0, 0xB8, 0xE0, 0xA2, 0x16, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ), +}; +#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */ + +/* + * Domain parameters for secp256r1 + */ +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) +static const mbedtls_mpi_uint secp256r1_p[] = { + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ), + BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ), + BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +static const mbedtls_mpi_uint secp256r1_b[] = { + BYTES_TO_T_UINT_8( 0x4B, 0x60, 0xD2, 0x27, 0x3E, 0x3C, 0xCE, 0x3B ), + BYTES_TO_T_UINT_8( 0xF6, 0xB0, 0x53, 0xCC, 0xB0, 0x06, 0x1D, 0x65 ), + BYTES_TO_T_UINT_8( 0xBC, 0x86, 0x98, 0x76, 0x55, 0xBD, 0xEB, 0xB3 ), + BYTES_TO_T_UINT_8( 0xE7, 0x93, 0x3A, 0xAA, 0xD8, 0x35, 0xC6, 0x5A ), +}; +static const mbedtls_mpi_uint secp256r1_gx[] = { + BYTES_TO_T_UINT_8( 0x96, 0xC2, 0x98, 0xD8, 0x45, 0x39, 0xA1, 0xF4 ), + BYTES_TO_T_UINT_8( 0xA0, 0x33, 0xEB, 0x2D, 0x81, 0x7D, 0x03, 0x77 ), + BYTES_TO_T_UINT_8( 0xF2, 0x40, 0xA4, 0x63, 0xE5, 0xE6, 0xBC, 0xF8 ), + BYTES_TO_T_UINT_8( 0x47, 0x42, 0x2C, 0xE1, 0xF2, 0xD1, 0x17, 0x6B ), +}; +static const mbedtls_mpi_uint secp256r1_gy[] = { + BYTES_TO_T_UINT_8( 0xF5, 0x51, 0xBF, 0x37, 0x68, 0x40, 0xB6, 0xCB ), + BYTES_TO_T_UINT_8( 0xCE, 0x5E, 0x31, 0x6B, 0x57, 0x33, 0xCE, 0x2B ), + BYTES_TO_T_UINT_8( 0x16, 0x9E, 0x0F, 0x7C, 0x4A, 0xEB, 0xE7, 0x8E ), + BYTES_TO_T_UINT_8( 0x9B, 0x7F, 0x1A, 0xFE, 0xE2, 0x42, 0xE3, 0x4F ), +}; +static const mbedtls_mpi_uint secp256r1_n[] = { + BYTES_TO_T_UINT_8( 0x51, 0x25, 0x63, 0xFC, 0xC2, 0xCA, 0xB9, 0xF3 ), + BYTES_TO_T_UINT_8( 0x84, 0x9E, 0x17, 0xA7, 0xAD, 0xFA, 0xE6, 0xBC ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */ + +/* + * Domain parameters for secp384r1 + */ +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) +static const mbedtls_mpi_uint secp384r1_p[] = { + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ), + BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +static const mbedtls_mpi_uint secp384r1_b[] = { + BYTES_TO_T_UINT_8( 0xEF, 0x2A, 0xEC, 0xD3, 0xED, 0xC8, 0x85, 0x2A ), + BYTES_TO_T_UINT_8( 0x9D, 0xD1, 0x2E, 0x8A, 0x8D, 0x39, 0x56, 0xC6 ), + BYTES_TO_T_UINT_8( 0x5A, 0x87, 0x13, 0x50, 0x8F, 0x08, 0x14, 0x03 ), + BYTES_TO_T_UINT_8( 0x12, 0x41, 0x81, 0xFE, 0x6E, 0x9C, 0x1D, 0x18 ), + BYTES_TO_T_UINT_8( 0x19, 0x2D, 0xF8, 0xE3, 0x6B, 0x05, 0x8E, 0x98 ), + BYTES_TO_T_UINT_8( 0xE4, 0xE7, 0x3E, 0xE2, 0xA7, 0x2F, 0x31, 0xB3 ), +}; +static const mbedtls_mpi_uint secp384r1_gx[] = { + BYTES_TO_T_UINT_8( 0xB7, 0x0A, 0x76, 0x72, 0x38, 0x5E, 0x54, 0x3A ), + BYTES_TO_T_UINT_8( 0x6C, 0x29, 0x55, 0xBF, 0x5D, 0xF2, 0x02, 0x55 ), + BYTES_TO_T_UINT_8( 0x38, 0x2A, 0x54, 0x82, 0xE0, 0x41, 0xF7, 0x59 ), + BYTES_TO_T_UINT_8( 0x98, 0x9B, 0xA7, 0x8B, 0x62, 0x3B, 0x1D, 0x6E ), + BYTES_TO_T_UINT_8( 0x74, 0xAD, 0x20, 0xF3, 0x1E, 0xC7, 0xB1, 0x8E ), + BYTES_TO_T_UINT_8( 0x37, 0x05, 0x8B, 0xBE, 0x22, 0xCA, 0x87, 0xAA ), +}; +static const mbedtls_mpi_uint secp384r1_gy[] = { + BYTES_TO_T_UINT_8( 0x5F, 0x0E, 0xEA, 0x90, 0x7C, 0x1D, 0x43, 0x7A ), + BYTES_TO_T_UINT_8( 0x9D, 0x81, 0x7E, 0x1D, 0xCE, 0xB1, 0x60, 0x0A ), + BYTES_TO_T_UINT_8( 0xC0, 0xB8, 0xF0, 0xB5, 0x13, 0x31, 0xDA, 0xE9 ), + BYTES_TO_T_UINT_8( 0x7C, 0x14, 0x9A, 0x28, 0xBD, 0x1D, 0xF4, 0xF8 ), + BYTES_TO_T_UINT_8( 0x29, 0xDC, 0x92, 0x92, 0xBF, 0x98, 0x9E, 0x5D ), + BYTES_TO_T_UINT_8( 0x6F, 0x2C, 0x26, 0x96, 0x4A, 0xDE, 0x17, 0x36 ), +}; +static const mbedtls_mpi_uint secp384r1_n[] = { + BYTES_TO_T_UINT_8( 0x73, 0x29, 0xC5, 0xCC, 0x6A, 0x19, 0xEC, 0xEC ), + BYTES_TO_T_UINT_8( 0x7A, 0xA7, 0xB0, 0x48, 0xB2, 0x0D, 0x1A, 0x58 ), + BYTES_TO_T_UINT_8( 0xDF, 0x2D, 0x37, 0xF4, 0x81, 0x4D, 0x63, 0xC7 ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */ + +/* + * Domain parameters for secp521r1 + */ +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) +static const mbedtls_mpi_uint secp521r1_p[] = { + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_2( 0xFF, 0x01 ), +}; +static const mbedtls_mpi_uint secp521r1_b[] = { + BYTES_TO_T_UINT_8( 0x00, 0x3F, 0x50, 0x6B, 0xD4, 0x1F, 0x45, 0xEF ), + BYTES_TO_T_UINT_8( 0xF1, 0x34, 0x2C, 0x3D, 0x88, 0xDF, 0x73, 0x35 ), + BYTES_TO_T_UINT_8( 0x07, 0xBF, 0xB1, 0x3B, 0xBD, 0xC0, 0x52, 0x16 ), + BYTES_TO_T_UINT_8( 0x7B, 0x93, 0x7E, 0xEC, 0x51, 0x39, 0x19, 0x56 ), + BYTES_TO_T_UINT_8( 0xE1, 0x09, 0xF1, 0x8E, 0x91, 0x89, 0xB4, 0xB8 ), + BYTES_TO_T_UINT_8( 0xF3, 0x15, 0xB3, 0x99, 0x5B, 0x72, 0xDA, 0xA2 ), + BYTES_TO_T_UINT_8( 0xEE, 0x40, 0x85, 0xB6, 0xA0, 0x21, 0x9A, 0x92 ), + BYTES_TO_T_UINT_8( 0x1F, 0x9A, 0x1C, 0x8E, 0x61, 0xB9, 0x3E, 0x95 ), + BYTES_TO_T_UINT_2( 0x51, 0x00 ), +}; +static const mbedtls_mpi_uint secp521r1_gx[] = { + BYTES_TO_T_UINT_8( 0x66, 0xBD, 0xE5, 0xC2, 0x31, 0x7E, 0x7E, 0xF9 ), + BYTES_TO_T_UINT_8( 0x9B, 0x42, 0x6A, 0x85, 0xC1, 0xB3, 0x48, 0x33 ), + BYTES_TO_T_UINT_8( 0xDE, 0xA8, 0xFF, 0xA2, 0x27, 0xC1, 0x1D, 0xFE ), + BYTES_TO_T_UINT_8( 0x28, 0x59, 0xE7, 0xEF, 0x77, 0x5E, 0x4B, 0xA1 ), + BYTES_TO_T_UINT_8( 0xBA, 0x3D, 0x4D, 0x6B, 0x60, 0xAF, 0x28, 0xF8 ), + BYTES_TO_T_UINT_8( 0x21, 0xB5, 0x3F, 0x05, 0x39, 0x81, 0x64, 0x9C ), + BYTES_TO_T_UINT_8( 0x42, 0xB4, 0x95, 0x23, 0x66, 0xCB, 0x3E, 0x9E ), + BYTES_TO_T_UINT_8( 0xCD, 0xE9, 0x04, 0x04, 0xB7, 0x06, 0x8E, 0x85 ), + BYTES_TO_T_UINT_2( 0xC6, 0x00 ), +}; +static const mbedtls_mpi_uint secp521r1_gy[] = { + BYTES_TO_T_UINT_8( 0x50, 0x66, 0xD1, 0x9F, 0x76, 0x94, 0xBE, 0x88 ), + BYTES_TO_T_UINT_8( 0x40, 0xC2, 0x72, 0xA2, 0x86, 0x70, 0x3C, 0x35 ), + BYTES_TO_T_UINT_8( 0x61, 0x07, 0xAD, 0x3F, 0x01, 0xB9, 0x50, 0xC5 ), + BYTES_TO_T_UINT_8( 0x40, 0x26, 0xF4, 0x5E, 0x99, 0x72, 0xEE, 0x97 ), + BYTES_TO_T_UINT_8( 0x2C, 0x66, 0x3E, 0x27, 0x17, 0xBD, 0xAF, 0x17 ), + BYTES_TO_T_UINT_8( 0x68, 0x44, 0x9B, 0x57, 0x49, 0x44, 0xF5, 0x98 ), + BYTES_TO_T_UINT_8( 0xD9, 0x1B, 0x7D, 0x2C, 0xB4, 0x5F, 0x8A, 0x5C ), + BYTES_TO_T_UINT_8( 0x04, 0xC0, 0x3B, 0x9A, 0x78, 0x6A, 0x29, 0x39 ), + BYTES_TO_T_UINT_2( 0x18, 0x01 ), +}; +static const mbedtls_mpi_uint secp521r1_n[] = { + BYTES_TO_T_UINT_8( 0x09, 0x64, 0x38, 0x91, 0x1E, 0xB7, 0x6F, 0xBB ), + BYTES_TO_T_UINT_8( 0xAE, 0x47, 0x9C, 0x89, 0xB8, 0xC9, 0xB5, 0x3B ), + BYTES_TO_T_UINT_8( 0xD0, 0xA5, 0x09, 0xF7, 0x48, 0x01, 0xCC, 0x7F ), + BYTES_TO_T_UINT_8( 0x6B, 0x96, 0x2F, 0xBF, 0x83, 0x87, 0x86, 0x51 ), + BYTES_TO_T_UINT_8( 0xFA, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_2( 0xFF, 0x01 ), +}; +#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) +static const mbedtls_mpi_uint secp192k1_p[] = { + BYTES_TO_T_UINT_8( 0x37, 0xEE, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +static const mbedtls_mpi_uint secp192k1_a[] = { + BYTES_TO_T_UINT_2( 0x00, 0x00 ), +}; +static const mbedtls_mpi_uint secp192k1_b[] = { + BYTES_TO_T_UINT_2( 0x03, 0x00 ), +}; +static const mbedtls_mpi_uint secp192k1_gx[] = { + BYTES_TO_T_UINT_8( 0x7D, 0x6C, 0xE0, 0xEA, 0xB1, 0xD1, 0xA5, 0x1D ), + BYTES_TO_T_UINT_8( 0x34, 0xF4, 0xB7, 0x80, 0x02, 0x7D, 0xB0, 0x26 ), + BYTES_TO_T_UINT_8( 0xAE, 0xE9, 0x57, 0xC0, 0x0E, 0xF1, 0x4F, 0xDB ), +}; +static const mbedtls_mpi_uint secp192k1_gy[] = { + BYTES_TO_T_UINT_8( 0x9D, 0x2F, 0x5E, 0xD9, 0x88, 0xAA, 0x82, 0x40 ), + BYTES_TO_T_UINT_8( 0x34, 0x86, 0xBE, 0x15, 0xD0, 0x63, 0x41, 0x84 ), + BYTES_TO_T_UINT_8( 0xA7, 0x28, 0x56, 0x9C, 0x6D, 0x2F, 0x2F, 0x9B ), +}; +static const mbedtls_mpi_uint secp192k1_n[] = { + BYTES_TO_T_UINT_8( 0x8D, 0xFD, 0xDE, 0x74, 0x6A, 0x46, 0x69, 0x0F ), + BYTES_TO_T_UINT_8( 0x17, 0xFC, 0xF2, 0x26, 0xFE, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) +static const mbedtls_mpi_uint secp224k1_p[] = { + BYTES_TO_T_UINT_8( 0x6D, 0xE5, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ), +}; +static const mbedtls_mpi_uint secp224k1_a[] = { + BYTES_TO_T_UINT_2( 0x00, 0x00 ), +}; +static const mbedtls_mpi_uint secp224k1_b[] = { + BYTES_TO_T_UINT_2( 0x05, 0x00 ), +}; +static const mbedtls_mpi_uint secp224k1_gx[] = { + BYTES_TO_T_UINT_8( 0x5C, 0xA4, 0xB7, 0xB6, 0x0E, 0x65, 0x7E, 0x0F ), + BYTES_TO_T_UINT_8( 0xA9, 0x75, 0x70, 0xE4, 0xE9, 0x67, 0xA4, 0x69 ), + BYTES_TO_T_UINT_8( 0xA1, 0x28, 0xFC, 0x30, 0xDF, 0x99, 0xF0, 0x4D ), + BYTES_TO_T_UINT_4( 0x33, 0x5B, 0x45, 0xA1 ), +}; +static const mbedtls_mpi_uint secp224k1_gy[] = { + BYTES_TO_T_UINT_8( 0xA5, 0x61, 0x6D, 0x55, 0xDB, 0x4B, 0xCA, 0xE2 ), + BYTES_TO_T_UINT_8( 0x59, 0xBD, 0xB0, 0xC0, 0xF7, 0x19, 0xE3, 0xF7 ), + BYTES_TO_T_UINT_8( 0xD6, 0xFB, 0xCA, 0x82, 0x42, 0x34, 0xBA, 0x7F ), + BYTES_TO_T_UINT_4( 0xED, 0x9F, 0x08, 0x7E ), +}; +static const mbedtls_mpi_uint secp224k1_n[] = { + BYTES_TO_T_UINT_8( 0xF7, 0xB1, 0x9F, 0x76, 0x71, 0xA9, 0xF0, 0xCA ), + BYTES_TO_T_UINT_8( 0x84, 0x61, 0xEC, 0xD2, 0xE8, 0xDC, 0x01, 0x00 ), + BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ), + BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ), +}; +#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +static const mbedtls_mpi_uint secp256k1_p[] = { + BYTES_TO_T_UINT_8( 0x2F, 0xFC, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +static const mbedtls_mpi_uint secp256k1_a[] = { + BYTES_TO_T_UINT_2( 0x00, 0x00 ), +}; +static const mbedtls_mpi_uint secp256k1_b[] = { + BYTES_TO_T_UINT_2( 0x07, 0x00 ), +}; +static const mbedtls_mpi_uint secp256k1_gx[] = { + BYTES_TO_T_UINT_8( 0x98, 0x17, 0xF8, 0x16, 0x5B, 0x81, 0xF2, 0x59 ), + BYTES_TO_T_UINT_8( 0xD9, 0x28, 0xCE, 0x2D, 0xDB, 0xFC, 0x9B, 0x02 ), + BYTES_TO_T_UINT_8( 0x07, 0x0B, 0x87, 0xCE, 0x95, 0x62, 0xA0, 0x55 ), + BYTES_TO_T_UINT_8( 0xAC, 0xBB, 0xDC, 0xF9, 0x7E, 0x66, 0xBE, 0x79 ), +}; +static const mbedtls_mpi_uint secp256k1_gy[] = { + BYTES_TO_T_UINT_8( 0xB8, 0xD4, 0x10, 0xFB, 0x8F, 0xD0, 0x47, 0x9C ), + BYTES_TO_T_UINT_8( 0x19, 0x54, 0x85, 0xA6, 0x48, 0xB4, 0x17, 0xFD ), + BYTES_TO_T_UINT_8( 0xA8, 0x08, 0x11, 0x0E, 0xFC, 0xFB, 0xA4, 0x5D ), + BYTES_TO_T_UINT_8( 0x65, 0xC4, 0xA3, 0x26, 0x77, 0xDA, 0x3A, 0x48 ), +}; +static const mbedtls_mpi_uint secp256k1_n[] = { + BYTES_TO_T_UINT_8( 0x41, 0x41, 0x36, 0xD0, 0x8C, 0x5E, 0xD2, 0xBF ), + BYTES_TO_T_UINT_8( 0x3B, 0xA0, 0x48, 0xAF, 0xE6, 0xDC, 0xAE, 0xBA ), + BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), + BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ), +}; +#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */ + +/* + * Domain parameters for brainpoolP256r1 (RFC 5639 3.4) + */ +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) +static const mbedtls_mpi_uint brainpoolP256r1_p[] = { + BYTES_TO_T_UINT_8( 0x77, 0x53, 0x6E, 0x1F, 0x1D, 0x48, 0x13, 0x20 ), + BYTES_TO_T_UINT_8( 0x28, 0x20, 0x26, 0xD5, 0x23, 0xF6, 0x3B, 0x6E ), + BYTES_TO_T_UINT_8( 0x72, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ), + BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ), +}; +static const mbedtls_mpi_uint brainpoolP256r1_a[] = { + BYTES_TO_T_UINT_8( 0xD9, 0xB5, 0x30, 0xF3, 0x44, 0x4B, 0x4A, 0xE9 ), + BYTES_TO_T_UINT_8( 0x6C, 0x5C, 0xDC, 0x26, 0xC1, 0x55, 0x80, 0xFB ), + BYTES_TO_T_UINT_8( 0xE7, 0xFF, 0x7A, 0x41, 0x30, 0x75, 0xF6, 0xEE ), + BYTES_TO_T_UINT_8( 0x57, 0x30, 0x2C, 0xFC, 0x75, 0x09, 0x5A, 0x7D ), +}; +static const mbedtls_mpi_uint brainpoolP256r1_b[] = { + BYTES_TO_T_UINT_8( 0xB6, 0x07, 0x8C, 0xFF, 0x18, 0xDC, 0xCC, 0x6B ), + BYTES_TO_T_UINT_8( 0xCE, 0xE1, 0xF7, 0x5C, 0x29, 0x16, 0x84, 0x95 ), + BYTES_TO_T_UINT_8( 0xBF, 0x7C, 0xD7, 0xBB, 0xD9, 0xB5, 0x30, 0xF3 ), + BYTES_TO_T_UINT_8( 0x44, 0x4B, 0x4A, 0xE9, 0x6C, 0x5C, 0xDC, 0x26 ), +}; +static const mbedtls_mpi_uint brainpoolP256r1_gx[] = { + BYTES_TO_T_UINT_8( 0x62, 0x32, 0xCE, 0x9A, 0xBD, 0x53, 0x44, 0x3A ), + BYTES_TO_T_UINT_8( 0xC2, 0x23, 0xBD, 0xE3, 0xE1, 0x27, 0xDE, 0xB9 ), + BYTES_TO_T_UINT_8( 0xAF, 0xB7, 0x81, 0xFC, 0x2F, 0x48, 0x4B, 0x2C ), + BYTES_TO_T_UINT_8( 0xCB, 0x57, 0x7E, 0xCB, 0xB9, 0xAE, 0xD2, 0x8B ), +}; +static const mbedtls_mpi_uint brainpoolP256r1_gy[] = { + BYTES_TO_T_UINT_8( 0x97, 0x69, 0x04, 0x2F, 0xC7, 0x54, 0x1D, 0x5C ), + BYTES_TO_T_UINT_8( 0x54, 0x8E, 0xED, 0x2D, 0x13, 0x45, 0x77, 0xC2 ), + BYTES_TO_T_UINT_8( 0xC9, 0x1D, 0x61, 0x14, 0x1A, 0x46, 0xF8, 0x97 ), + BYTES_TO_T_UINT_8( 0xFD, 0xC4, 0xDA, 0xC3, 0x35, 0xF8, 0x7E, 0x54 ), +}; +static const mbedtls_mpi_uint brainpoolP256r1_n[] = { + BYTES_TO_T_UINT_8( 0xA7, 0x56, 0x48, 0x97, 0x82, 0x0E, 0x1E, 0x90 ), + BYTES_TO_T_UINT_8( 0xF7, 0xA6, 0x61, 0xB5, 0xA3, 0x7A, 0x39, 0x8C ), + BYTES_TO_T_UINT_8( 0x71, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ), + BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ), +}; +#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */ + +/* + * Domain parameters for brainpoolP384r1 (RFC 5639 3.6) + */ +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) +static const mbedtls_mpi_uint brainpoolP384r1_p[] = { + BYTES_TO_T_UINT_8( 0x53, 0xEC, 0x07, 0x31, 0x13, 0x00, 0x47, 0x87 ), + BYTES_TO_T_UINT_8( 0x71, 0x1A, 0x1D, 0x90, 0x29, 0xA7, 0xD3, 0xAC ), + BYTES_TO_T_UINT_8( 0x23, 0x11, 0xB7, 0x7F, 0x19, 0xDA, 0xB1, 0x12 ), + BYTES_TO_T_UINT_8( 0xB4, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ), + BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ), + BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ), +}; +static const mbedtls_mpi_uint brainpoolP384r1_a[] = { + BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ), + BYTES_TO_T_UINT_8( 0xEB, 0xD4, 0x3A, 0x50, 0x4A, 0x81, 0xA5, 0x8A ), + BYTES_TO_T_UINT_8( 0x0F, 0xF9, 0x91, 0xBA, 0xEF, 0x65, 0x91, 0x13 ), + BYTES_TO_T_UINT_8( 0x87, 0x27, 0xB2, 0x4F, 0x8E, 0xA2, 0xBE, 0xC2 ), + BYTES_TO_T_UINT_8( 0xA0, 0xAF, 0x05, 0xCE, 0x0A, 0x08, 0x72, 0x3C ), + BYTES_TO_T_UINT_8( 0x0C, 0x15, 0x8C, 0x3D, 0xC6, 0x82, 0xC3, 0x7B ), +}; +static const mbedtls_mpi_uint brainpoolP384r1_b[] = { + BYTES_TO_T_UINT_8( 0x11, 0x4C, 0x50, 0xFA, 0x96, 0x86, 0xB7, 0x3A ), + BYTES_TO_T_UINT_8( 0x94, 0xC9, 0xDB, 0x95, 0x02, 0x39, 0xB4, 0x7C ), + BYTES_TO_T_UINT_8( 0xD5, 0x62, 0xEB, 0x3E, 0xA5, 0x0E, 0x88, 0x2E ), + BYTES_TO_T_UINT_8( 0xA6, 0xD2, 0xDC, 0x07, 0xE1, 0x7D, 0xB7, 0x2F ), + BYTES_TO_T_UINT_8( 0x7C, 0x44, 0xF0, 0x16, 0x54, 0xB5, 0x39, 0x8B ), + BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ), +}; +static const mbedtls_mpi_uint brainpoolP384r1_gx[] = { + BYTES_TO_T_UINT_8( 0x1E, 0xAF, 0xD4, 0x47, 0xE2, 0xB2, 0x87, 0xEF ), + BYTES_TO_T_UINT_8( 0xAA, 0x46, 0xD6, 0x36, 0x34, 0xE0, 0x26, 0xE8 ), + BYTES_TO_T_UINT_8( 0xE8, 0x10, 0xBD, 0x0C, 0xFE, 0xCA, 0x7F, 0xDB ), + BYTES_TO_T_UINT_8( 0xE3, 0x4F, 0xF1, 0x7E, 0xE7, 0xA3, 0x47, 0x88 ), + BYTES_TO_T_UINT_8( 0x6B, 0x3F, 0xC1, 0xB7, 0x81, 0x3A, 0xA6, 0xA2 ), + BYTES_TO_T_UINT_8( 0xFF, 0x45, 0xCF, 0x68, 0xF0, 0x64, 0x1C, 0x1D ), +}; +static const mbedtls_mpi_uint brainpoolP384r1_gy[] = { + BYTES_TO_T_UINT_8( 0x15, 0x53, 0x3C, 0x26, 0x41, 0x03, 0x82, 0x42 ), + BYTES_TO_T_UINT_8( 0x11, 0x81, 0x91, 0x77, 0x21, 0x46, 0x46, 0x0E ), + BYTES_TO_T_UINT_8( 0x28, 0x29, 0x91, 0xF9, 0x4F, 0x05, 0x9C, 0xE1 ), + BYTES_TO_T_UINT_8( 0x64, 0x58, 0xEC, 0xFE, 0x29, 0x0B, 0xB7, 0x62 ), + BYTES_TO_T_UINT_8( 0x52, 0xD5, 0xCF, 0x95, 0x8E, 0xEB, 0xB1, 0x5C ), + BYTES_TO_T_UINT_8( 0xA4, 0xC2, 0xF9, 0x20, 0x75, 0x1D, 0xBE, 0x8A ), +}; +static const mbedtls_mpi_uint brainpoolP384r1_n[] = { + BYTES_TO_T_UINT_8( 0x65, 0x65, 0x04, 0xE9, 0x02, 0x32, 0x88, 0x3B ), + BYTES_TO_T_UINT_8( 0x10, 0xC3, 0x7F, 0x6B, 0xAF, 0xB6, 0x3A, 0xCF ), + BYTES_TO_T_UINT_8( 0xA7, 0x25, 0x04, 0xAC, 0x6C, 0x6E, 0x16, 0x1F ), + BYTES_TO_T_UINT_8( 0xB3, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ), + BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ), + BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ), +}; +#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */ + +/* + * Domain parameters for brainpoolP512r1 (RFC 5639 3.7) + */ +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) +static const mbedtls_mpi_uint brainpoolP512r1_p[] = { + BYTES_TO_T_UINT_8( 0xF3, 0x48, 0x3A, 0x58, 0x56, 0x60, 0xAA, 0x28 ), + BYTES_TO_T_UINT_8( 0x85, 0xC6, 0x82, 0x2D, 0x2F, 0xFF, 0x81, 0x28 ), + BYTES_TO_T_UINT_8( 0xE6, 0x80, 0xA3, 0xE6, 0x2A, 0xA1, 0xCD, 0xAE ), + BYTES_TO_T_UINT_8( 0x42, 0x68, 0xC6, 0x9B, 0x00, 0x9B, 0x4D, 0x7D ), + BYTES_TO_T_UINT_8( 0x71, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ), + BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ), + BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ), + BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ), +}; +static const mbedtls_mpi_uint brainpoolP512r1_a[] = { + BYTES_TO_T_UINT_8( 0xCA, 0x94, 0xFC, 0x77, 0x4D, 0xAC, 0xC1, 0xE7 ), + BYTES_TO_T_UINT_8( 0xB9, 0xC7, 0xF2, 0x2B, 0xA7, 0x17, 0x11, 0x7F ), + BYTES_TO_T_UINT_8( 0xB5, 0xC8, 0x9A, 0x8B, 0xC9, 0xF1, 0x2E, 0x0A ), + BYTES_TO_T_UINT_8( 0xA1, 0x3A, 0x25, 0xA8, 0x5A, 0x5D, 0xED, 0x2D ), + BYTES_TO_T_UINT_8( 0xBC, 0x63, 0x98, 0xEA, 0xCA, 0x41, 0x34, 0xA8 ), + BYTES_TO_T_UINT_8( 0x10, 0x16, 0xF9, 0x3D, 0x8D, 0xDD, 0xCB, 0x94 ), + BYTES_TO_T_UINT_8( 0xC5, 0x4C, 0x23, 0xAC, 0x45, 0x71, 0x32, 0xE2 ), + BYTES_TO_T_UINT_8( 0x89, 0x3B, 0x60, 0x8B, 0x31, 0xA3, 0x30, 0x78 ), +}; +static const mbedtls_mpi_uint brainpoolP512r1_b[] = { + BYTES_TO_T_UINT_8( 0x23, 0xF7, 0x16, 0x80, 0x63, 0xBD, 0x09, 0x28 ), + BYTES_TO_T_UINT_8( 0xDD, 0xE5, 0xBA, 0x5E, 0xB7, 0x50, 0x40, 0x98 ), + BYTES_TO_T_UINT_8( 0x67, 0x3E, 0x08, 0xDC, 0xCA, 0x94, 0xFC, 0x77 ), + BYTES_TO_T_UINT_8( 0x4D, 0xAC, 0xC1, 0xE7, 0xB9, 0xC7, 0xF2, 0x2B ), + BYTES_TO_T_UINT_8( 0xA7, 0x17, 0x11, 0x7F, 0xB5, 0xC8, 0x9A, 0x8B ), + BYTES_TO_T_UINT_8( 0xC9, 0xF1, 0x2E, 0x0A, 0xA1, 0x3A, 0x25, 0xA8 ), + BYTES_TO_T_UINT_8( 0x5A, 0x5D, 0xED, 0x2D, 0xBC, 0x63, 0x98, 0xEA ), + BYTES_TO_T_UINT_8( 0xCA, 0x41, 0x34, 0xA8, 0x10, 0x16, 0xF9, 0x3D ), +}; +static const mbedtls_mpi_uint brainpoolP512r1_gx[] = { + BYTES_TO_T_UINT_8( 0x22, 0xF8, 0xB9, 0xBC, 0x09, 0x22, 0x35, 0x8B ), + BYTES_TO_T_UINT_8( 0x68, 0x5E, 0x6A, 0x40, 0x47, 0x50, 0x6D, 0x7C ), + BYTES_TO_T_UINT_8( 0x5F, 0x7D, 0xB9, 0x93, 0x7B, 0x68, 0xD1, 0x50 ), + BYTES_TO_T_UINT_8( 0x8D, 0xD4, 0xD0, 0xE2, 0x78, 0x1F, 0x3B, 0xFF ), + BYTES_TO_T_UINT_8( 0x8E, 0x09, 0xD0, 0xF4, 0xEE, 0x62, 0x3B, 0xB4 ), + BYTES_TO_T_UINT_8( 0xC1, 0x16, 0xD9, 0xB5, 0x70, 0x9F, 0xED, 0x85 ), + BYTES_TO_T_UINT_8( 0x93, 0x6A, 0x4C, 0x9C, 0x2E, 0x32, 0x21, 0x5A ), + BYTES_TO_T_UINT_8( 0x64, 0xD9, 0x2E, 0xD8, 0xBD, 0xE4, 0xAE, 0x81 ), +}; +static const mbedtls_mpi_uint brainpoolP512r1_gy[] = { + BYTES_TO_T_UINT_8( 0x92, 0x08, 0xD8, 0x3A, 0x0F, 0x1E, 0xCD, 0x78 ), + BYTES_TO_T_UINT_8( 0x06, 0x54, 0xF0, 0xA8, 0x2F, 0x2B, 0xCA, 0xD1 ), + BYTES_TO_T_UINT_8( 0xAE, 0x63, 0x27, 0x8A, 0xD8, 0x4B, 0xCA, 0x5B ), + BYTES_TO_T_UINT_8( 0x5E, 0x48, 0x5F, 0x4A, 0x49, 0xDE, 0xDC, 0xB2 ), + BYTES_TO_T_UINT_8( 0x11, 0x81, 0x1F, 0x88, 0x5B, 0xC5, 0x00, 0xA0 ), + BYTES_TO_T_UINT_8( 0x1A, 0x7B, 0xA5, 0x24, 0x00, 0xF7, 0x09, 0xF2 ), + BYTES_TO_T_UINT_8( 0xFD, 0x22, 0x78, 0xCF, 0xA9, 0xBF, 0xEA, 0xC0 ), + BYTES_TO_T_UINT_8( 0xEC, 0x32, 0x63, 0x56, 0x5D, 0x38, 0xDE, 0x7D ), +}; +static const mbedtls_mpi_uint brainpoolP512r1_n[] = { + BYTES_TO_T_UINT_8( 0x69, 0x00, 0xA9, 0x9C, 0x82, 0x96, 0x87, 0xB5 ), + BYTES_TO_T_UINT_8( 0xDD, 0xDA, 0x5D, 0x08, 0x81, 0xD3, 0xB1, 0x1D ), + BYTES_TO_T_UINT_8( 0x47, 0x10, 0xAC, 0x7F, 0x19, 0x61, 0x86, 0x41 ), + BYTES_TO_T_UINT_8( 0x19, 0x26, 0xA9, 0x4C, 0x41, 0x5C, 0x3E, 0x55 ), + BYTES_TO_T_UINT_8( 0x70, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ), + BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ), + BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ), + BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ), +}; +#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */ + +/* + * Create an MPI from embedded constants + * (assumes len is an exact multiple of sizeof mbedtls_mpi_uint) + */ +static inline void ecp_mpi_load( mbedtls_mpi *X, const mbedtls_mpi_uint *p, size_t len ) +{ + X->s = 1; + X->n = len / sizeof( mbedtls_mpi_uint ); + X->p = (mbedtls_mpi_uint *) p; +} + +/* + * Set an MPI to static value 1 + */ +static inline void ecp_mpi_set1( mbedtls_mpi *X ) +{ + static mbedtls_mpi_uint one[] = { 1 }; + X->s = 1; + X->n = 1; + X->p = one; +} + +/* + * Make group available from embedded constants + */ +static int ecp_group_load( mbedtls_ecp_group *grp, + const mbedtls_mpi_uint *p, size_t plen, + const mbedtls_mpi_uint *a, size_t alen, + const mbedtls_mpi_uint *b, size_t blen, + const mbedtls_mpi_uint *gx, size_t gxlen, + const mbedtls_mpi_uint *gy, size_t gylen, + const mbedtls_mpi_uint *n, size_t nlen) +{ + ecp_mpi_load( &grp->P, p, plen ); + if( a != NULL ) + ecp_mpi_load( &grp->A, a, alen ); + ecp_mpi_load( &grp->B, b, blen ); + ecp_mpi_load( &grp->N, n, nlen ); + + ecp_mpi_load( &grp->G.X, gx, gxlen ); + ecp_mpi_load( &grp->G.Y, gy, gylen ); + ecp_mpi_set1( &grp->G.Z ); + + grp->pbits = mbedtls_mpi_bitlen( &grp->P ); + grp->nbits = mbedtls_mpi_bitlen( &grp->N ); + + grp->h = 1; + + return( 0 ); +} + +#if defined(MBEDTLS_ECP_NIST_OPTIM) +/* Forward declarations */ +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) +static int ecp_mod_p192( mbedtls_mpi * ); +#endif +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) +static int ecp_mod_p224( mbedtls_mpi * ); +#endif +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) +static int ecp_mod_p256( mbedtls_mpi * ); +#endif +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) +static int ecp_mod_p384( mbedtls_mpi * ); +#endif +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) +static int ecp_mod_p521( mbedtls_mpi * ); +#endif + +#define NIST_MODP( P ) grp->modp = ecp_mod_ ## P; +#else +#define NIST_MODP( P ) +#endif /* MBEDTLS_ECP_NIST_OPTIM */ + +/* Additional forward declarations */ +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) +static int ecp_mod_p255( mbedtls_mpi * ); +#endif +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) +static int ecp_mod_p192k1( mbedtls_mpi * ); +#endif +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) +static int ecp_mod_p224k1( mbedtls_mpi * ); +#endif +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +static int ecp_mod_p256k1( mbedtls_mpi * ); +#endif + +#define LOAD_GROUP_A( G ) ecp_group_load( grp, \ + G ## _p, sizeof( G ## _p ), \ + G ## _a, sizeof( G ## _a ), \ + G ## _b, sizeof( G ## _b ), \ + G ## _gx, sizeof( G ## _gx ), \ + G ## _gy, sizeof( G ## _gy ), \ + G ## _n, sizeof( G ## _n ) ) + +#define LOAD_GROUP( G ) ecp_group_load( grp, \ + G ## _p, sizeof( G ## _p ), \ + NULL, 0, \ + G ## _b, sizeof( G ## _b ), \ + G ## _gx, sizeof( G ## _gx ), \ + G ## _gy, sizeof( G ## _gy ), \ + G ## _n, sizeof( G ## _n ) ) + +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) +/* + * Specialized function for creating the Curve25519 group + */ +static int ecp_use_curve25519( mbedtls_ecp_group *grp ) +{ + int ret; + + /* Actually ( A + 2 ) / 4 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &grp->A, 16, "01DB42" ) ); + + /* P = 2^255 - 19 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->P, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &grp->P, 255 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &grp->P, &grp->P, 19 ) ); + grp->pbits = mbedtls_mpi_bitlen( &grp->P ); + + /* Y intentionaly not set, since we use x/z coordinates. + * This is used as a marker to identify Montgomery curves! */ + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->G.X, 9 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->G.Z, 1 ) ); + mbedtls_mpi_free( &grp->G.Y ); + + /* Actually, the required msb for private keys */ + grp->nbits = 254; + +cleanup: + if( ret != 0 ) + mbedtls_ecp_group_free( grp ); + + return( ret ); +} +#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */ + +/* + * Set a group using well-known domain parameters + */ +int mbedtls_ecp_group_load( mbedtls_ecp_group *grp, mbedtls_ecp_group_id id ) +{ + mbedtls_ecp_group_free( grp ); + + grp->id = id; + + switch( id ) + { +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) + case MBEDTLS_ECP_DP_SECP192R1: + NIST_MODP( p192 ); + return( LOAD_GROUP( secp192r1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) + case MBEDTLS_ECP_DP_SECP224R1: + NIST_MODP( p224 ); + return( LOAD_GROUP( secp224r1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) + case MBEDTLS_ECP_DP_SECP256R1: + NIST_MODP( p256 ); + return( LOAD_GROUP( secp256r1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) + case MBEDTLS_ECP_DP_SECP384R1: + NIST_MODP( p384 ); + return( LOAD_GROUP( secp384r1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) + case MBEDTLS_ECP_DP_SECP521R1: + NIST_MODP( p521 ); + return( LOAD_GROUP( secp521r1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) + case MBEDTLS_ECP_DP_SECP192K1: + grp->modp = ecp_mod_p192k1; + return( LOAD_GROUP_A( secp192k1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) + case MBEDTLS_ECP_DP_SECP224K1: + grp->modp = ecp_mod_p224k1; + return( LOAD_GROUP_A( secp224k1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) + case MBEDTLS_ECP_DP_SECP256K1: + grp->modp = ecp_mod_p256k1; + return( LOAD_GROUP_A( secp256k1 ) ); +#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) + case MBEDTLS_ECP_DP_BP256R1: + return( LOAD_GROUP_A( brainpoolP256r1 ) ); +#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) + case MBEDTLS_ECP_DP_BP384R1: + return( LOAD_GROUP_A( brainpoolP384r1 ) ); +#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) + case MBEDTLS_ECP_DP_BP512R1: + return( LOAD_GROUP_A( brainpoolP512r1 ) ); +#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) + case MBEDTLS_ECP_DP_CURVE25519: + grp->modp = ecp_mod_p255; + return( ecp_use_curve25519( grp ) ); +#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */ + + default: + mbedtls_ecp_group_free( grp ); + return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE ); + } +} + +#if defined(MBEDTLS_ECP_NIST_OPTIM) +/* + * Fast reduction modulo the primes used by the NIST curves. + * + * These functions are critical for speed, but not needed for correct + * operations. So, we make the choice to heavily rely on the internals of our + * bignum library, which creates a tight coupling between these functions and + * our MPI implementation. However, the coupling between the ECP module and + * MPI remains loose, since these functions can be deactivated at will. + */ + +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) +/* + * Compared to the way things are presented in FIPS 186-3 D.2, + * we proceed in columns, from right (least significant chunk) to left, + * adding chunks to N in place, and keeping a carry for the next chunk. + * This avoids moving things around in memory, and uselessly adding zeros, + * compared to the more straightforward, line-oriented approach. + * + * For this prime we need to handle data in chunks of 64 bits. + * Since this is always a multiple of our basic mbedtls_mpi_uint, we can + * use a mbedtls_mpi_uint * to designate such a chunk, and small loops to handle it. + */ + +/* Add 64-bit chunks (dst += src) and update carry */ +static inline void add64( mbedtls_mpi_uint *dst, mbedtls_mpi_uint *src, mbedtls_mpi_uint *carry ) +{ + unsigned char i; + mbedtls_mpi_uint c = 0; + for( i = 0; i < 8 / sizeof( mbedtls_mpi_uint ); i++, dst++, src++ ) + { + *dst += c; c = ( *dst < c ); + *dst += *src; c += ( *dst < *src ); + } + *carry += c; +} + +/* Add carry to a 64-bit chunk and update carry */ +static inline void carry64( mbedtls_mpi_uint *dst, mbedtls_mpi_uint *carry ) +{ + unsigned char i; + for( i = 0; i < 8 / sizeof( mbedtls_mpi_uint ); i++, dst++ ) + { + *dst += *carry; + *carry = ( *dst < *carry ); + } +} + +#define WIDTH 8 / sizeof( mbedtls_mpi_uint ) +#define A( i ) N->p + i * WIDTH +#define ADD( i ) add64( p, A( i ), &c ) +#define NEXT p += WIDTH; carry64( p, &c ) +#define LAST p += WIDTH; *p = c; while( ++p < end ) *p = 0 + +/* + * Fast quasi-reduction modulo p192 (FIPS 186-3 D.2.1) + */ +static int ecp_mod_p192( mbedtls_mpi *N ) +{ + int ret; + mbedtls_mpi_uint c = 0; + mbedtls_mpi_uint *p, *end; + + /* Make sure we have enough blocks so that A(5) is legal */ + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( N, 6 * WIDTH ) ); + + p = N->p; + end = p + N->n; + + ADD( 3 ); ADD( 5 ); NEXT; // A0 += A3 + A5 + ADD( 3 ); ADD( 4 ); ADD( 5 ); NEXT; // A1 += A3 + A4 + A5 + ADD( 4 ); ADD( 5 ); LAST; // A2 += A4 + A5 + +cleanup: + return( ret ); +} + +#undef WIDTH +#undef A +#undef ADD +#undef NEXT +#undef LAST +#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) +/* + * The reader is advised to first understand ecp_mod_p192() since the same + * general structure is used here, but with additional complications: + * (1) chunks of 32 bits, and (2) subtractions. + */ + +/* + * For these primes, we need to handle data in chunks of 32 bits. + * This makes it more complicated if we use 64 bits limbs in MPI, + * which prevents us from using a uniform access method as for p192. + * + * So, we define a mini abstraction layer to access 32 bit chunks, + * load them in 'cur' for work, and store them back from 'cur' when done. + * + * While at it, also define the size of N in terms of 32-bit chunks. + */ +#define LOAD32 cur = A( i ); + +#if defined(MBEDTLS_HAVE_INT32) /* 32 bit */ + +#define MAX32 N->n +#define A( j ) N->p[j] +#define STORE32 N->p[i] = cur; + +#else /* 64-bit */ + +#define MAX32 N->n * 2 +#define A( j ) j % 2 ? (uint32_t)( N->p[j/2] >> 32 ) : (uint32_t)( N->p[j/2] ) +#define STORE32 \ + if( i % 2 ) { \ + N->p[i/2] &= 0x00000000FFFFFFFF; \ + N->p[i/2] |= ((mbedtls_mpi_uint) cur) << 32; \ + } else { \ + N->p[i/2] &= 0xFFFFFFFF00000000; \ + N->p[i/2] |= (mbedtls_mpi_uint) cur; \ + } + +#endif /* sizeof( mbedtls_mpi_uint ) */ + +/* + * Helpers for addition and subtraction of chunks, with signed carry. + */ +static inline void add32( uint32_t *dst, uint32_t src, signed char *carry ) +{ + *dst += src; + *carry += ( *dst < src ); +} + +static inline void sub32( uint32_t *dst, uint32_t src, signed char *carry ) +{ + *carry -= ( *dst < src ); + *dst -= src; +} + +#define ADD( j ) add32( &cur, A( j ), &c ); +#define SUB( j ) sub32( &cur, A( j ), &c ); + +/* + * Helpers for the main 'loop' + * (see fix_negative for the motivation of C) + */ +#define INIT( b ) \ + int ret; \ + signed char c = 0, cc; \ + uint32_t cur; \ + size_t i = 0, bits = b; \ + mbedtls_mpi C; \ + mbedtls_mpi_uint Cp[ b / 8 / sizeof( mbedtls_mpi_uint) + 1 ]; \ + \ + C.s = 1; \ + C.n = b / 8 / sizeof( mbedtls_mpi_uint) + 1; \ + C.p = Cp; \ + memset( Cp, 0, C.n * sizeof( mbedtls_mpi_uint ) ); \ + \ + MBEDTLS_MPI_CHK( mbedtls_mpi_grow( N, b * 2 / 8 / sizeof( mbedtls_mpi_uint ) ) ); \ + LOAD32; + +#define NEXT \ + STORE32; i++; LOAD32; \ + cc = c; c = 0; \ + if( cc < 0 ) \ + sub32( &cur, -cc, &c ); \ + else \ + add32( &cur, cc, &c ); \ + +#define LAST \ + STORE32; i++; \ + cur = c > 0 ? c : 0; STORE32; \ + cur = 0; while( ++i < MAX32 ) { STORE32; } \ + if( c < 0 ) fix_negative( N, c, &C, bits ); + +/* + * If the result is negative, we get it in the form + * c * 2^(bits + 32) + N, with c negative and N positive shorter than 'bits' + */ +static inline int fix_negative( mbedtls_mpi *N, signed char c, mbedtls_mpi *C, size_t bits ) +{ + int ret; + + /* C = - c * 2^(bits + 32) */ +#if !defined(MBEDTLS_HAVE_INT64) + ((void) bits); +#else + if( bits == 224 ) + C->p[ C->n - 1 ] = ((mbedtls_mpi_uint) -c) << 32; + else +#endif + C->p[ C->n - 1 ] = (mbedtls_mpi_uint) -c; + + /* N = - ( C - N ) */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( N, C, N ) ); + N->s = -1; + +cleanup: + + return( ret ); +} + +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) +/* + * Fast quasi-reduction modulo p224 (FIPS 186-3 D.2.2) + */ +static int ecp_mod_p224( mbedtls_mpi *N ) +{ + INIT( 224 ); + + SUB( 7 ); SUB( 11 ); NEXT; // A0 += -A7 - A11 + SUB( 8 ); SUB( 12 ); NEXT; // A1 += -A8 - A12 + SUB( 9 ); SUB( 13 ); NEXT; // A2 += -A9 - A13 + SUB( 10 ); ADD( 7 ); ADD( 11 ); NEXT; // A3 += -A10 + A7 + A11 + SUB( 11 ); ADD( 8 ); ADD( 12 ); NEXT; // A4 += -A11 + A8 + A12 + SUB( 12 ); ADD( 9 ); ADD( 13 ); NEXT; // A5 += -A12 + A9 + A13 + SUB( 13 ); ADD( 10 ); LAST; // A6 += -A13 + A10 + +cleanup: + return( ret ); +} +#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) +/* + * Fast quasi-reduction modulo p256 (FIPS 186-3 D.2.3) + */ +static int ecp_mod_p256( mbedtls_mpi *N ) +{ + INIT( 256 ); + + ADD( 8 ); ADD( 9 ); + SUB( 11 ); SUB( 12 ); SUB( 13 ); SUB( 14 ); NEXT; // A0 + + ADD( 9 ); ADD( 10 ); + SUB( 12 ); SUB( 13 ); SUB( 14 ); SUB( 15 ); NEXT; // A1 + + ADD( 10 ); ADD( 11 ); + SUB( 13 ); SUB( 14 ); SUB( 15 ); NEXT; // A2 + + ADD( 11 ); ADD( 11 ); ADD( 12 ); ADD( 12 ); ADD( 13 ); + SUB( 15 ); SUB( 8 ); SUB( 9 ); NEXT; // A3 + + ADD( 12 ); ADD( 12 ); ADD( 13 ); ADD( 13 ); ADD( 14 ); + SUB( 9 ); SUB( 10 ); NEXT; // A4 + + ADD( 13 ); ADD( 13 ); ADD( 14 ); ADD( 14 ); ADD( 15 ); + SUB( 10 ); SUB( 11 ); NEXT; // A5 + + ADD( 14 ); ADD( 14 ); ADD( 15 ); ADD( 15 ); ADD( 14 ); ADD( 13 ); + SUB( 8 ); SUB( 9 ); NEXT; // A6 + + ADD( 15 ); ADD( 15 ); ADD( 15 ); ADD( 8 ); + SUB( 10 ); SUB( 11 ); SUB( 12 ); SUB( 13 ); LAST; // A7 + +cleanup: + return( ret ); +} +#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) +/* + * Fast quasi-reduction modulo p384 (FIPS 186-3 D.2.4) + */ +static int ecp_mod_p384( mbedtls_mpi *N ) +{ + INIT( 384 ); + + ADD( 12 ); ADD( 21 ); ADD( 20 ); + SUB( 23 ); NEXT; // A0 + + ADD( 13 ); ADD( 22 ); ADD( 23 ); + SUB( 12 ); SUB( 20 ); NEXT; // A2 + + ADD( 14 ); ADD( 23 ); + SUB( 13 ); SUB( 21 ); NEXT; // A2 + + ADD( 15 ); ADD( 12 ); ADD( 20 ); ADD( 21 ); + SUB( 14 ); SUB( 22 ); SUB( 23 ); NEXT; // A3 + + ADD( 21 ); ADD( 21 ); ADD( 16 ); ADD( 13 ); ADD( 12 ); ADD( 20 ); ADD( 22 ); + SUB( 15 ); SUB( 23 ); SUB( 23 ); NEXT; // A4 + + ADD( 22 ); ADD( 22 ); ADD( 17 ); ADD( 14 ); ADD( 13 ); ADD( 21 ); ADD( 23 ); + SUB( 16 ); NEXT; // A5 + + ADD( 23 ); ADD( 23 ); ADD( 18 ); ADD( 15 ); ADD( 14 ); ADD( 22 ); + SUB( 17 ); NEXT; // A6 + + ADD( 19 ); ADD( 16 ); ADD( 15 ); ADD( 23 ); + SUB( 18 ); NEXT; // A7 + + ADD( 20 ); ADD( 17 ); ADD( 16 ); + SUB( 19 ); NEXT; // A8 + + ADD( 21 ); ADD( 18 ); ADD( 17 ); + SUB( 20 ); NEXT; // A9 + + ADD( 22 ); ADD( 19 ); ADD( 18 ); + SUB( 21 ); NEXT; // A10 + + ADD( 23 ); ADD( 20 ); ADD( 19 ); + SUB( 22 ); LAST; // A11 + +cleanup: + return( ret ); +} +#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */ + +#undef A +#undef LOAD32 +#undef STORE32 +#undef MAX32 +#undef INIT +#undef NEXT +#undef LAST + +#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED || + MBEDTLS_ECP_DP_SECP256R1_ENABLED || + MBEDTLS_ECP_DP_SECP384R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) +/* + * Here we have an actual Mersenne prime, so things are more straightforward. + * However, chunks are aligned on a 'weird' boundary (521 bits). + */ + +/* Size of p521 in terms of mbedtls_mpi_uint */ +#define P521_WIDTH ( 521 / 8 / sizeof( mbedtls_mpi_uint ) + 1 ) + +/* Bits to keep in the most significant mbedtls_mpi_uint */ +#define P521_MASK 0x01FF + +/* + * Fast quasi-reduction modulo p521 (FIPS 186-3 D.2.5) + * Write N as A1 + 2^521 A0, return A0 + A1 + */ +static int ecp_mod_p521( mbedtls_mpi *N ) +{ + int ret; + size_t i; + mbedtls_mpi M; + mbedtls_mpi_uint Mp[P521_WIDTH + 1]; + /* Worst case for the size of M is when mbedtls_mpi_uint is 16 bits: + * we need to hold bits 513 to 1056, which is 34 limbs, that is + * P521_WIDTH + 1. Otherwise P521_WIDTH is enough. */ + + if( N->n < P521_WIDTH ) + return( 0 ); + + /* M = A1 */ + M.s = 1; + M.n = N->n - ( P521_WIDTH - 1 ); + if( M.n > P521_WIDTH + 1 ) + M.n = P521_WIDTH + 1; + M.p = Mp; + memcpy( Mp, N->p + P521_WIDTH - 1, M.n * sizeof( mbedtls_mpi_uint ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, 521 % ( 8 * sizeof( mbedtls_mpi_uint ) ) ) ); + + /* N = A0 */ + N->p[P521_WIDTH - 1] &= P521_MASK; + for( i = P521_WIDTH; i < N->n; i++ ) + N->p[i] = 0; + + /* N = A0 + A1 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) ); + +cleanup: + return( ret ); +} + +#undef P521_WIDTH +#undef P521_MASK +#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */ + +#endif /* MBEDTLS_ECP_NIST_OPTIM */ + +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) + +/* Size of p255 in terms of mbedtls_mpi_uint */ +#define P255_WIDTH ( 255 / 8 / sizeof( mbedtls_mpi_uint ) + 1 ) + +/* + * Fast quasi-reduction modulo p255 = 2^255 - 19 + * Write N as A0 + 2^255 A1, return A0 + 19 * A1 + */ +static int ecp_mod_p255( mbedtls_mpi *N ) +{ + int ret; + size_t i; + mbedtls_mpi M; + mbedtls_mpi_uint Mp[P255_WIDTH + 2]; + + if( N->n < P255_WIDTH ) + return( 0 ); + + /* M = A1 */ + M.s = 1; + M.n = N->n - ( P255_WIDTH - 1 ); + if( M.n > P255_WIDTH + 1 ) + M.n = P255_WIDTH + 1; + M.p = Mp; + memset( Mp, 0, sizeof Mp ); + memcpy( Mp, N->p + P255_WIDTH - 1, M.n * sizeof( mbedtls_mpi_uint ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, 255 % ( 8 * sizeof( mbedtls_mpi_uint ) ) ) ); + M.n++; /* Make room for multiplication by 19 */ + + /* N = A0 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( N, 255, 0 ) ); + for( i = P255_WIDTH; i < N->n; i++ ) + N->p[i] = 0; + + /* N = A0 + 19 * A1 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &M, &M, 19 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) ); + +cleanup: + return( ret ); +} +#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +/* + * Fast quasi-reduction modulo P = 2^s - R, + * with R about 33 bits, used by the Koblitz curves. + * + * Write N as A0 + 2^224 A1, return A0 + R * A1. + * Actually do two passes, since R is big. + */ +#define P_KOBLITZ_MAX ( 256 / 8 / sizeof( mbedtls_mpi_uint ) ) // Max limbs in P +#define P_KOBLITZ_R ( 8 / sizeof( mbedtls_mpi_uint ) ) // Limbs in R +static inline int ecp_mod_koblitz( mbedtls_mpi *N, mbedtls_mpi_uint *Rp, size_t p_limbs, + size_t adjust, size_t shift, mbedtls_mpi_uint mask ) +{ + int ret; + size_t i; + mbedtls_mpi M, R; + mbedtls_mpi_uint Mp[P_KOBLITZ_MAX + P_KOBLITZ_R]; + + if( N->n < p_limbs ) + return( 0 ); + + /* Init R */ + R.s = 1; + R.p = Rp; + R.n = P_KOBLITZ_R; + + /* Common setup for M */ + M.s = 1; + M.p = Mp; + + /* M = A1 */ + M.n = N->n - ( p_limbs - adjust ); + if( M.n > p_limbs + adjust ) + M.n = p_limbs + adjust; + memset( Mp, 0, sizeof Mp ); + memcpy( Mp, N->p + p_limbs - adjust, M.n * sizeof( mbedtls_mpi_uint ) ); + if( shift != 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, shift ) ); + M.n += R.n - adjust; /* Make room for multiplication by R */ + + /* N = A0 */ + if( mask != 0 ) + N->p[p_limbs - 1] &= mask; + for( i = p_limbs; i < N->n; i++ ) + N->p[i] = 0; + + /* N = A0 + R * A1 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &M, &M, &R ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) ); + + /* Second pass */ + + /* M = A1 */ + M.n = N->n - ( p_limbs - adjust ); + if( M.n > p_limbs + adjust ) + M.n = p_limbs + adjust; + memset( Mp, 0, sizeof Mp ); + memcpy( Mp, N->p + p_limbs - adjust, M.n * sizeof( mbedtls_mpi_uint ) ); + if( shift != 0 ) + MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, shift ) ); + M.n += R.n - adjust; /* Make room for multiplication by R */ + + /* N = A0 */ + if( mask != 0 ) + N->p[p_limbs - 1] &= mask; + for( i = p_limbs; i < N->n; i++ ) + N->p[i] = 0; + + /* N = A0 + R * A1 */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &M, &M, &R ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) ); + +cleanup: + return( ret ); +} +#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED) || + MBEDTLS_ECP_DP_SECP224K1_ENABLED) || + MBEDTLS_ECP_DP_SECP256K1_ENABLED) */ + +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) +/* + * Fast quasi-reduction modulo p192k1 = 2^192 - R, + * with R = 2^32 + 2^12 + 2^8 + 2^7 + 2^6 + 2^3 + 1 = 0x0100001119 + */ +static int ecp_mod_p192k1( mbedtls_mpi *N ) +{ + static mbedtls_mpi_uint Rp[] = { + BYTES_TO_T_UINT_8( 0xC9, 0x11, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) }; + + return( ecp_mod_koblitz( N, Rp, 192 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) ); +} +#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) +/* + * Fast quasi-reduction modulo p224k1 = 2^224 - R, + * with R = 2^32 + 2^12 + 2^11 + 2^9 + 2^7 + 2^4 + 2 + 1 = 0x0100001A93 + */ +static int ecp_mod_p224k1( mbedtls_mpi *N ) +{ + static mbedtls_mpi_uint Rp[] = { + BYTES_TO_T_UINT_8( 0x93, 0x1A, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) }; + +#if defined(MBEDTLS_HAVE_INT64) + return( ecp_mod_koblitz( N, Rp, 4, 1, 32, 0xFFFFFFFF ) ); +#else + return( ecp_mod_koblitz( N, Rp, 224 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) ); +#endif +} + +#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +/* + * Fast quasi-reduction modulo p256k1 = 2^256 - R, + * with R = 2^32 + 2^9 + 2^8 + 2^7 + 2^6 + 2^4 + 1 = 0x01000003D1 + */ +static int ecp_mod_p256k1( mbedtls_mpi *N ) +{ + static mbedtls_mpi_uint Rp[] = { + BYTES_TO_T_UINT_8( 0xD1, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) }; + return( ecp_mod_koblitz( N, Rp, 256 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) ); +} +#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */ + +#endif /* MBEDTLS_ECP_C */ diff --git a/mbedtls/entropy.c b/mbedtls/entropy.c new file mode 100644 index 0000000..d4d1b27 --- /dev/null +++ b/mbedtls/entropy.c @@ -0,0 +1,655 @@ +/* + * Entropy accumulator implementation + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ENTROPY_C) + +#if defined(MBEDTLS_TEST_NULL_ENTROPY) +#warning "**** WARNING! MBEDTLS_TEST_NULL_ENTROPY defined! " +#warning "**** THIS BUILD HAS NO DEFINED ENTROPY SOURCES " +#warning "**** THIS BUILD IS *NOT* SUITABLE FOR PRODUCTION USE " +#endif + +#include "mbedtls/entropy.h" +#include "mbedtls/entropy_poll.h" + +#include + +#if defined(MBEDTLS_FS_IO) +#include +#endif + +#if defined(MBEDTLS_ENTROPY_NV_SEED) +#include "mbedtls/platform.h" +#endif + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if defined(MBEDTLS_HAVEGE_C) +#include "mbedtls/havege.h" +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +#define ENTROPY_MAX_LOOP 256 /**< Maximum amount to loop before error */ + +void mbedtls_entropy_init( mbedtls_entropy_context *ctx ) +{ + memset( ctx, 0, sizeof(mbedtls_entropy_context) ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif + +#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR) + mbedtls_sha512_starts( &ctx->accumulator, 0 ); +#else + mbedtls_sha256_starts( &ctx->accumulator, 0 ); +#endif +#if defined(MBEDTLS_HAVEGE_C) + mbedtls_havege_init( &ctx->havege_data ); +#endif + +#if defined(MBEDTLS_TEST_NULL_ENTROPY) + mbedtls_entropy_add_source( ctx, mbedtls_null_entropy_poll, NULL, + 1, MBEDTLS_ENTROPY_SOURCE_STRONG ); +#endif + +#if !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) +#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY) + mbedtls_entropy_add_source( ctx, mbedtls_platform_entropy_poll, NULL, + MBEDTLS_ENTROPY_MIN_PLATFORM, + MBEDTLS_ENTROPY_SOURCE_STRONG ); +#endif +#if defined(MBEDTLS_TIMING_C) + mbedtls_entropy_add_source( ctx, mbedtls_hardclock_poll, NULL, + MBEDTLS_ENTROPY_MIN_HARDCLOCK, + MBEDTLS_ENTROPY_SOURCE_WEAK ); +#endif +#if defined(MBEDTLS_HAVEGE_C) + mbedtls_entropy_add_source( ctx, mbedtls_havege_poll, &ctx->havege_data, + MBEDTLS_ENTROPY_MIN_HAVEGE, + MBEDTLS_ENTROPY_SOURCE_STRONG ); +#endif +#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) + mbedtls_entropy_add_source( ctx, mbedtls_hardware_poll, NULL, + MBEDTLS_ENTROPY_MIN_HARDWARE, + MBEDTLS_ENTROPY_SOURCE_STRONG ); +#endif +#if defined(MBEDTLS_ENTROPY_NV_SEED) + mbedtls_entropy_add_source( ctx, mbedtls_nv_seed_poll, NULL, + MBEDTLS_ENTROPY_BLOCK_SIZE, + MBEDTLS_ENTROPY_SOURCE_STRONG ); +#endif +#endif /* MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES */ +} + +void mbedtls_entropy_free( mbedtls_entropy_context *ctx ) +{ +#if defined(MBEDTLS_HAVEGE_C) + mbedtls_havege_free( &ctx->havege_data ); +#endif +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &ctx->mutex ); +#endif + mbedtls_zeroize( ctx, sizeof( mbedtls_entropy_context ) ); +} + +int mbedtls_entropy_add_source( mbedtls_entropy_context *ctx, + mbedtls_entropy_f_source_ptr f_source, void *p_source, + size_t threshold, int strong ) +{ + int index, ret = 0; + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + index = ctx->source_count; + if( index >= MBEDTLS_ENTROPY_MAX_SOURCES ) + { + ret = MBEDTLS_ERR_ENTROPY_MAX_SOURCES; + goto exit; + } + + ctx->source[index].f_source = f_source; + ctx->source[index].p_source = p_source; + ctx->source[index].threshold = threshold; + ctx->source[index].strong = strong; + + ctx->source_count++; + +exit: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +/* + * Entropy accumulator update + */ +static int entropy_update( mbedtls_entropy_context *ctx, unsigned char source_id, + const unsigned char *data, size_t len ) +{ + unsigned char header[2]; + unsigned char tmp[MBEDTLS_ENTROPY_BLOCK_SIZE]; + size_t use_len = len; + const unsigned char *p = data; + + if( use_len > MBEDTLS_ENTROPY_BLOCK_SIZE ) + { +#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR) + mbedtls_sha512( data, len, tmp, 0 ); +#else + mbedtls_sha256( data, len, tmp, 0 ); +#endif + p = tmp; + use_len = MBEDTLS_ENTROPY_BLOCK_SIZE; + } + + header[0] = source_id; + header[1] = use_len & 0xFF; + +#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR) + mbedtls_sha512_update( &ctx->accumulator, header, 2 ); + mbedtls_sha512_update( &ctx->accumulator, p, use_len ); +#else + mbedtls_sha256_update( &ctx->accumulator, header, 2 ); + mbedtls_sha256_update( &ctx->accumulator, p, use_len ); +#endif + + return( 0 ); +} + +int mbedtls_entropy_update_manual( mbedtls_entropy_context *ctx, + const unsigned char *data, size_t len ) +{ + int ret; + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + ret = entropy_update( ctx, MBEDTLS_ENTROPY_SOURCE_MANUAL, data, len ); + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +/* + * Run through the different sources to add entropy to our accumulator + */ +static int entropy_gather_internal( mbedtls_entropy_context *ctx ) +{ + int ret, i, have_one_strong = 0; + unsigned char buf[MBEDTLS_ENTROPY_MAX_GATHER]; + size_t olen; + + if( ctx->source_count == 0 ) + return( MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED ); + + /* + * Run through our entropy sources + */ + for( i = 0; i < ctx->source_count; i++ ) + { + if( ctx->source[i].strong == MBEDTLS_ENTROPY_SOURCE_STRONG ) + have_one_strong = 1; + + olen = 0; + if( ( ret = ctx->source[i].f_source( ctx->source[i].p_source, + buf, MBEDTLS_ENTROPY_MAX_GATHER, &olen ) ) != 0 ) + { + return( ret ); + } + + /* + * Add if we actually gathered something + */ + if( olen > 0 ) + { + entropy_update( ctx, (unsigned char) i, buf, olen ); + ctx->source[i].size += olen; + } + } + + if( have_one_strong == 0 ) + return( MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE ); + + return( 0 ); +} + +/* + * Thread-safe wrapper for entropy_gather_internal() + */ +int mbedtls_entropy_gather( mbedtls_entropy_context *ctx ) +{ + int ret; + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + ret = entropy_gather_internal( ctx ); + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +int mbedtls_entropy_func( void *data, unsigned char *output, size_t len ) +{ + int ret, count = 0, i, done; + mbedtls_entropy_context *ctx = (mbedtls_entropy_context *) data; + unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE]; + + if( len > MBEDTLS_ENTROPY_BLOCK_SIZE ) + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + +#if defined(MBEDTLS_ENTROPY_NV_SEED) + /* Update the NV entropy seed before generating any entropy for outside + * use. + */ + if( ctx->initial_entropy_run == 0 ) + { + ctx->initial_entropy_run = 1; + if( ( ret = mbedtls_entropy_update_nv_seed( ctx ) ) != 0 ) + return( ret ); + } +#endif + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + /* + * Always gather extra entropy before a call + */ + do + { + if( count++ > ENTROPY_MAX_LOOP ) + { + ret = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED; + goto exit; + } + + if( ( ret = entropy_gather_internal( ctx ) ) != 0 ) + goto exit; + + done = 1; + for( i = 0; i < ctx->source_count; i++ ) + if( ctx->source[i].size < ctx->source[i].threshold ) + done = 0; + } + while( ! done ); + + memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE ); + +#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR) + mbedtls_sha512_finish( &ctx->accumulator, buf ); + + /* + * Reset accumulator and counters and recycle existing entropy + */ + memset( &ctx->accumulator, 0, sizeof( mbedtls_sha512_context ) ); + mbedtls_sha512_starts( &ctx->accumulator, 0 ); + mbedtls_sha512_update( &ctx->accumulator, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ); + + /* + * Perform second SHA-512 on entropy + */ + mbedtls_sha512( buf, MBEDTLS_ENTROPY_BLOCK_SIZE, buf, 0 ); +#else /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */ + mbedtls_sha256_finish( &ctx->accumulator, buf ); + + /* + * Reset accumulator and counters and recycle existing entropy + */ + memset( &ctx->accumulator, 0, sizeof( mbedtls_sha256_context ) ); + mbedtls_sha256_starts( &ctx->accumulator, 0 ); + mbedtls_sha256_update( &ctx->accumulator, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ); + + /* + * Perform second SHA-256 on entropy + */ + mbedtls_sha256( buf, MBEDTLS_ENTROPY_BLOCK_SIZE, buf, 0 ); +#endif /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */ + + for( i = 0; i < ctx->source_count; i++ ) + ctx->source[i].size = 0; + + memcpy( output, buf, len ); + + ret = 0; + +exit: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +#if defined(MBEDTLS_ENTROPY_NV_SEED) +int mbedtls_entropy_update_nv_seed( mbedtls_entropy_context *ctx ) +{ + int ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR; + unsigned char buf[ MBEDTLS_ENTROPY_MAX_SEED_SIZE ]; + + /* Read new seed and write it to NV */ + if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 ) + return( ret ); + + if( mbedtls_nv_seed_write( buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) < 0 ) + return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR ); + + /* Manually update the remaining stream with a separator value to diverge */ + memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE ); + mbedtls_entropy_update_manual( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ); + + return( 0 ); +} +#endif /* MBEDTLS_ENTROPY_NV_SEED */ + +#if defined(MBEDTLS_FS_IO) +int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path ) +{ + int ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR; + FILE *f; + unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE]; + + if( ( f = fopen( path, "wb" ) ) == NULL ) + return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR ); + + if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 ) + goto exit; + + if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE ) + { + ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR; + goto exit; + } + + ret = 0; + +exit: + fclose( f ); + return( ret ); +} + +int mbedtls_entropy_update_seed_file( mbedtls_entropy_context *ctx, const char *path ) +{ + FILE *f; + size_t n; + unsigned char buf[ MBEDTLS_ENTROPY_MAX_SEED_SIZE ]; + + if( ( f = fopen( path, "rb" ) ) == NULL ) + return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR ); + + fseek( f, 0, SEEK_END ); + n = (size_t) ftell( f ); + fseek( f, 0, SEEK_SET ); + + if( n > MBEDTLS_ENTROPY_MAX_SEED_SIZE ) + n = MBEDTLS_ENTROPY_MAX_SEED_SIZE; + + if( fread( buf, 1, n, f ) != n ) + { + fclose( f ); + return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR ); + } + + fclose( f ); + + mbedtls_entropy_update_manual( ctx, buf, n ); + + return( mbedtls_entropy_write_seed_file( ctx, path ) ); +} +#endif /* MBEDTLS_FS_IO */ + +#if defined(MBEDTLS_SELF_TEST) +#if !defined(MBEDTLS_TEST_NULL_ENTROPY) +/* + * Dummy source function + */ +static int entropy_dummy_source( void *data, unsigned char *output, + size_t len, size_t *olen ) +{ + ((void) data); + + memset( output, 0x2a, len ); + *olen = len; + + return( 0 ); +} +#endif /* !MBEDTLS_TEST_NULL_ENTROPY */ + +#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) + +static int mbedtls_entropy_source_self_test_gather( unsigned char *buf, size_t buf_len ) +{ + int ret = 0; + size_t entropy_len = 0; + size_t olen = 0; + size_t attempts = buf_len; + + while( attempts > 0 && entropy_len < buf_len ) + { + if( ( ret = mbedtls_hardware_poll( NULL, buf + entropy_len, + buf_len - entropy_len, &olen ) ) != 0 ) + return( ret ); + + entropy_len += olen; + attempts--; + } + + if( entropy_len < buf_len ) + { + ret = 1; + } + + return( ret ); +} + + +static int mbedtls_entropy_source_self_test_check_bits( const unsigned char *buf, + size_t buf_len ) +{ + unsigned char set= 0xFF; + unsigned char unset = 0x00; + size_t i; + + for( i = 0; i < buf_len; i++ ) + { + set &= buf[i]; + unset |= buf[i]; + } + + return( set == 0xFF || unset == 0x00 ); +} + +/* + * A test to ensure hat the entropy sources are functioning correctly + * and there is no obvious failure. The test performs the following checks: + * - The entropy source is not providing only 0s (all bits unset) or 1s (all + * bits set). + * - The entropy source is not providing values in a pattern. Because the + * hardware could be providing data in an arbitrary length, this check polls + * the hardware entropy source twice and compares the result to ensure they + * are not equal. + * - The error code returned by the entropy source is not an error. + */ +int mbedtls_entropy_source_self_test( int verbose ) +{ + int ret = 0; + unsigned char buf0[2 * sizeof( unsigned long long int )]; + unsigned char buf1[2 * sizeof( unsigned long long int )]; + + if( verbose != 0 ) + mbedtls_printf( " ENTROPY_BIAS test: " ); + + memset( buf0, 0x00, sizeof( buf0 ) ); + memset( buf1, 0x00, sizeof( buf1 ) ); + + if( ( ret = mbedtls_entropy_source_self_test_gather( buf0, sizeof( buf0 ) ) ) != 0 ) + goto cleanup; + if( ( ret = mbedtls_entropy_source_self_test_gather( buf1, sizeof( buf1 ) ) ) != 0 ) + goto cleanup; + + /* Make sure that the returned values are not all 0 or 1 */ + if( ( ret = mbedtls_entropy_source_self_test_check_bits( buf0, sizeof( buf0 ) ) ) != 0 ) + goto cleanup; + if( ( ret = mbedtls_entropy_source_self_test_check_bits( buf1, sizeof( buf1 ) ) ) != 0 ) + goto cleanup; + + /* Make sure that the entropy source is not returning values in a + * pattern */ + ret = memcmp( buf0, buf1, sizeof( buf0 ) ) == 0; + +cleanup: + if( verbose != 0 ) + { + if( ret != 0 ) + mbedtls_printf( "failed\n" ); + else + mbedtls_printf( "passed\n" ); + + mbedtls_printf( "\n" ); + } + + return( ret != 0 ); +} + +#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */ + +/* + * The actual entropy quality is hard to test, but we can at least + * test that the functions don't cause errors and write the correct + * amount of data to buffers. + */ +int mbedtls_entropy_self_test( int verbose ) +{ + int ret = 1; +#if !defined(MBEDTLS_TEST_NULL_ENTROPY) + mbedtls_entropy_context ctx; + unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 }; + unsigned char acc[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 }; + size_t i, j; +#endif /* !MBEDTLS_TEST_NULL_ENTROPY */ + + if( verbose != 0 ) + mbedtls_printf( " ENTROPY test: " ); + +#if !defined(MBEDTLS_TEST_NULL_ENTROPY) + mbedtls_entropy_init( &ctx ); + + /* First do a gather to make sure we have default sources */ + if( ( ret = mbedtls_entropy_gather( &ctx ) ) != 0 ) + goto cleanup; + + ret = mbedtls_entropy_add_source( &ctx, entropy_dummy_source, NULL, 16, + MBEDTLS_ENTROPY_SOURCE_WEAK ); + if( ret != 0 ) + goto cleanup; + + if( ( ret = mbedtls_entropy_update_manual( &ctx, buf, sizeof buf ) ) != 0 ) + goto cleanup; + + /* + * To test that mbedtls_entropy_func writes correct number of bytes: + * - use the whole buffer and rely on ASan to detect overruns + * - collect entropy 8 times and OR the result in an accumulator: + * any byte should then be 0 with probably 2^(-64), so requiring + * each of the 32 or 64 bytes to be non-zero has a false failure rate + * of at most 2^(-58) which is acceptable. + */ + for( i = 0; i < 8; i++ ) + { + if( ( ret = mbedtls_entropy_func( &ctx, buf, sizeof( buf ) ) ) != 0 ) + goto cleanup; + + for( j = 0; j < sizeof( buf ); j++ ) + acc[j] |= buf[j]; + } + + for( j = 0; j < sizeof( buf ); j++ ) + { + if( acc[j] == 0 ) + { + ret = 1; + goto cleanup; + } + } + +#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) + if( ( ret = mbedtls_entropy_source_self_test( 0 ) ) != 0 ) + goto cleanup; +#endif + +cleanup: + mbedtls_entropy_free( &ctx ); +#endif /* !MBEDTLS_TEST_NULL_ENTROPY */ + + if( verbose != 0 ) + { + if( ret != 0 ) + mbedtls_printf( "failed\n" ); + else + mbedtls_printf( "passed\n" ); + + mbedtls_printf( "\n" ); + } + + return( ret != 0 ); +} +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_ENTROPY_C */ diff --git a/mbedtls/entropy_poll.c b/mbedtls/entropy_poll.c new file mode 100644 index 0000000..a116e60 --- /dev/null +++ b/mbedtls/entropy_poll.c @@ -0,0 +1,268 @@ +/* + * Platform-specific and custom entropy polling functions + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ENTROPY_C) + +#include "mbedtls/entropy.h" +#include "mbedtls/entropy_poll.h" + +#if defined(MBEDTLS_TIMING_C) +#include +#include "mbedtls/timing.h" +#endif +#if defined(MBEDTLS_HAVEGE_C) +#include "mbedtls/havege.h" +#endif +#if defined(MBEDTLS_ENTROPY_NV_SEED) +#include "mbedtls/platform.h" +#endif + +#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY) + +#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \ + !defined(__APPLE__) && !defined(_WIN32) +#error "Platform entropy sources only work on Unix and Windows, see MBEDTLS_NO_PLATFORM_ENTROPY in config.h" +#endif + +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) + +#if !defined(_WIN32_WINNT) +#define _WIN32_WINNT 0x0400 +#endif +#include +#include + +int mbedtls_platform_entropy_poll( void *data, unsigned char *output, size_t len, + size_t *olen ) +{ + HCRYPTPROV provider; + ((void) data); + *olen = 0; + + if( CryptAcquireContext( &provider, NULL, NULL, + PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) == FALSE ) + { + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + } + + if( CryptGenRandom( provider, (DWORD) len, output ) == FALSE ) + { + CryptReleaseContext( provider, 0 ); + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + } + + CryptReleaseContext( provider, 0 ); + *olen = len; + + return( 0 ); +} +#else /* _WIN32 && !EFIX64 && !EFI32 */ + +/* + * Test for Linux getrandom() support. + * Since there is no wrapper in the libc yet, use the generic syscall wrapper + * available in GNU libc and compatible libc's (eg uClibc). + */ +#if defined(__linux__) && defined(__GLIBC__) +#include +#include +#if defined(SYS_getrandom) +#define HAVE_GETRANDOM + +static int getrandom_wrapper( void *buf, size_t buflen, unsigned int flags ) +{ + /* MemSan cannot understand that the syscall writes to the buffer */ +#if defined(__has_feature) +#if __has_feature(memory_sanitizer) + memset( buf, 0, buflen ); +#endif +#endif + + return( syscall( SYS_getrandom, buf, buflen, flags ) ); +} + +#include +/* Check if version is at least 3.17.0 */ +static int check_version_3_17_plus( void ) +{ + int minor; + struct utsname un; + const char *ver; + + /* Get version information */ + uname(&un); + ver = un.release; + + /* Check major version; assume a single digit */ + if( ver[0] < '3' || ver[0] > '9' || ver [1] != '.' ) + return( -1 ); + + if( ver[0] - '0' > 3 ) + return( 0 ); + + /* Ok, so now we know major == 3, check minor. + * Assume 1 or 2 digits. */ + if( ver[2] < '0' || ver[2] > '9' ) + return( -1 ); + + minor = ver[2] - '0'; + + if( ver[3] >= '0' && ver[3] <= '9' ) + minor = 10 * minor + ver[3] - '0'; + else if( ver [3] != '.' ) + return( -1 ); + + if( minor < 17 ) + return( -1 ); + + return( 0 ); +} +static int has_getrandom = -1; +#endif /* SYS_getrandom */ +#endif /* __linux__ */ + +#include + +int mbedtls_platform_entropy_poll( void *data, + unsigned char *output, size_t len, size_t *olen ) +{ + FILE *file; + size_t read_len; + ((void) data); + +#if defined(HAVE_GETRANDOM) + if( has_getrandom == -1 ) + has_getrandom = ( check_version_3_17_plus() == 0 ); + + if( has_getrandom ) + { + int ret; + + if( ( ret = getrandom_wrapper( output, len, 0 ) ) < 0 ) + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + + *olen = ret; + return( 0 ); + } +#endif /* HAVE_GETRANDOM */ + + *olen = 0; + + file = fopen( "/dev/urandom", "rb" ); + if( file == NULL ) + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + + read_len = fread( output, 1, len, file ); + if( read_len != len ) + { + fclose( file ); + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + } + + fclose( file ); + *olen = len; + + return( 0 ); +} +#endif /* _WIN32 && !EFIX64 && !EFI32 */ +#endif /* !MBEDTLS_NO_PLATFORM_ENTROPY */ + +#if defined(MBEDTLS_TEST_NULL_ENTROPY) +int mbedtls_null_entropy_poll( void *data, + unsigned char *output, size_t len, size_t *olen ) +{ + ((void) data); + ((void) output); + *olen = 0; + + if( len < sizeof(unsigned char) ) + return( 0 ); + + *olen = sizeof(unsigned char); + + return( 0 ); +} +#endif + +#if defined(MBEDTLS_TIMING_C) +int mbedtls_hardclock_poll( void *data, + unsigned char *output, size_t len, size_t *olen ) +{ + unsigned long timer = mbedtls_timing_hardclock(); + ((void) data); + *olen = 0; + + if( len < sizeof(unsigned long) ) + return( 0 ); + + memcpy( output, &timer, sizeof(unsigned long) ); + *olen = sizeof(unsigned long); + + return( 0 ); +} +#endif /* MBEDTLS_TIMING_C */ + +#if defined(MBEDTLS_HAVEGE_C) +int mbedtls_havege_poll( void *data, + unsigned char *output, size_t len, size_t *olen ) +{ + mbedtls_havege_state *hs = (mbedtls_havege_state *) data; + *olen = 0; + + if( mbedtls_havege_random( hs, output, len ) != 0 ) + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + + *olen = len; + + return( 0 ); +} +#endif /* MBEDTLS_HAVEGE_C */ + +#if defined(MBEDTLS_ENTROPY_NV_SEED) +int mbedtls_nv_seed_poll( void *data, + unsigned char *output, size_t len, size_t *olen ) +{ + unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE]; + size_t use_len = MBEDTLS_ENTROPY_BLOCK_SIZE; + ((void) data); + + memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE ); + + if( mbedtls_nv_seed_read( buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) < 0 ) + return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED ); + + if( len < use_len ) + use_len = len; + + memcpy( output, buf, use_len ); + *olen = use_len; + + return( 0 ); +} +#endif /* MBEDTLS_ENTROPY_NV_SEED */ + +#endif /* MBEDTLS_ENTROPY_C */ diff --git a/mbedtls/error.c b/mbedtls/error.c new file mode 100644 index 0000000..dd2db0c --- /dev/null +++ b/mbedtls/error.c @@ -0,0 +1,707 @@ +/* + * Error message information + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY) +#include "mbedtls/error.h" +#include +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#define mbedtls_snprintf snprintf +#define mbedtls_time_t time_t +#endif + +#if defined(MBEDTLS_ERROR_C) + +#include + +#if defined(MBEDTLS_AES_C) +#include "mbedtls/aes.h" +#endif + +#if defined(MBEDTLS_BASE64_C) +#include "mbedtls/base64.h" +#endif + +#if defined(MBEDTLS_BIGNUM_C) +#include "mbedtls/bignum.h" +#endif + +#if defined(MBEDTLS_BLOWFISH_C) +#include "mbedtls/blowfish.h" +#endif + +#if defined(MBEDTLS_CAMELLIA_C) +#include "mbedtls/camellia.h" +#endif + +#if defined(MBEDTLS_CCM_C) +#include "mbedtls/ccm.h" +#endif + +#if defined(MBEDTLS_CIPHER_C) +#include "mbedtls/cipher.h" +#endif + +#if defined(MBEDTLS_CTR_DRBG_C) +#include "mbedtls/ctr_drbg.h" +#endif + +#if defined(MBEDTLS_DES_C) +#include "mbedtls/des.h" +#endif + +#if defined(MBEDTLS_DHM_C) +#include "mbedtls/dhm.h" +#endif + +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif + +#if defined(MBEDTLS_ENTROPY_C) +#include "mbedtls/entropy.h" +#endif + +#if defined(MBEDTLS_GCM_C) +#include "mbedtls/gcm.h" +#endif + +#if defined(MBEDTLS_HMAC_DRBG_C) +#include "mbedtls/hmac_drbg.h" +#endif + +#if defined(MBEDTLS_MD_C) +#include "mbedtls/md.h" +#endif + +#if defined(MBEDTLS_NET_C) +#include "mbedtls/net_sockets.h" +#endif + +#if defined(MBEDTLS_OID_C) +#include "mbedtls/oid.h" +#endif + +#if defined(MBEDTLS_PADLOCK_C) +#include "mbedtls/padlock.h" +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C) +#include "mbedtls/pem.h" +#endif + +#if defined(MBEDTLS_PK_C) +#include "mbedtls/pk.h" +#endif + +#if defined(MBEDTLS_PKCS12_C) +#include "mbedtls/pkcs12.h" +#endif + +#if defined(MBEDTLS_PKCS5_C) +#include "mbedtls/pkcs5.h" +#endif + +#if defined(MBEDTLS_RSA_C) +#include "mbedtls/rsa.h" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) +#include "mbedtls/ssl.h" +#endif + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) +#include "mbedtls/x509.h" +#endif + +#if defined(MBEDTLS_XTEA_C) +#include "mbedtls/xtea.h" +#endif + + +void mbedtls_strerror( int ret, char *buf, size_t buflen ) +{ + size_t len; + int use_ret; + + if( buflen == 0 ) + return; + + memset( buf, 0x00, buflen ); + + if( ret < 0 ) + ret = -ret; + + if( ret & 0xFF80 ) + { + use_ret = ret & 0xFF80; + + // High level error codes + // + // BEGIN generated code +#if defined(MBEDTLS_CIPHER_C) + if( use_ret == -(MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "CIPHER - The selected feature is not available" ); + if( use_ret == -(MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "CIPHER - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_CIPHER_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "CIPHER - Failed to allocate memory" ); + if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_PADDING) ) + mbedtls_snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" ); + if( use_ret == -(MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED) ) + mbedtls_snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" ); + if( use_ret == -(MBEDTLS_ERR_CIPHER_AUTH_FAILED) ) + mbedtls_snprintf( buf, buflen, "CIPHER - Authentication failed (for AEAD modes)" ); + if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_CONTEXT) ) + mbedtls_snprintf( buf, buflen, "CIPHER - The context is invalid, eg because it was free()ed" ); +#endif /* MBEDTLS_CIPHER_C */ + +#if defined(MBEDTLS_DHM_C) + if( use_ret == -(MBEDTLS_ERR_DHM_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "DHM - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_DHM_READ_PARAMS_FAILED) ) + mbedtls_snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" ); + if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED) ) + mbedtls_snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" ); + if( use_ret == -(MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED) ) + mbedtls_snprintf( buf, buflen, "DHM - Reading of the public values failed" ); + if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED) ) + mbedtls_snprintf( buf, buflen, "DHM - Making of the public value failed" ); + if( use_ret == -(MBEDTLS_ERR_DHM_CALC_SECRET_FAILED) ) + mbedtls_snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" ); + if( use_ret == -(MBEDTLS_ERR_DHM_INVALID_FORMAT) ) + mbedtls_snprintf( buf, buflen, "DHM - The ASN.1 data is not formatted correctly" ); + if( use_ret == -(MBEDTLS_ERR_DHM_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "DHM - Allocation of memory failed" ); + if( use_ret == -(MBEDTLS_ERR_DHM_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "DHM - Read/write of file failed" ); +#endif /* MBEDTLS_DHM_C */ + +#if defined(MBEDTLS_ECP_C) + if( use_ret == -(MBEDTLS_ERR_ECP_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "ECP - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "ECP - The buffer is too small to write to" ); + if( use_ret == -(MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "ECP - Requested curve not available" ); + if( use_ret == -(MBEDTLS_ERR_ECP_VERIFY_FAILED) ) + mbedtls_snprintf( buf, buflen, "ECP - The signature is not valid" ); + if( use_ret == -(MBEDTLS_ERR_ECP_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "ECP - Memory allocation failed" ); + if( use_ret == -(MBEDTLS_ERR_ECP_RANDOM_FAILED) ) + mbedtls_snprintf( buf, buflen, "ECP - Generation of random value, such as (ephemeral) key, failed" ); + if( use_ret == -(MBEDTLS_ERR_ECP_INVALID_KEY) ) + mbedtls_snprintf( buf, buflen, "ECP - Invalid private or public key" ); + if( use_ret == -(MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "ECP - Signature is valid but shorter than the user-supplied length" ); +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_MD_C) + if( use_ret == -(MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "MD - The selected feature is not available" ); + if( use_ret == -(MBEDTLS_ERR_MD_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "MD - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_MD_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "MD - Failed to allocate memory" ); + if( use_ret == -(MBEDTLS_ERR_MD_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "MD - Opening or reading of file failed" ); +#endif /* MBEDTLS_MD_C */ + +#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C) + if( use_ret == -(MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT) ) + mbedtls_snprintf( buf, buflen, "PEM - No PEM header or footer found" ); + if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_DATA) ) + mbedtls_snprintf( buf, buflen, "PEM - PEM string is not as expected" ); + if( use_ret == -(MBEDTLS_ERR_PEM_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "PEM - Failed to allocate memory" ); + if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_ENC_IV) ) + mbedtls_snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" ); + if( use_ret == -(MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG) ) + mbedtls_snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" ); + if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_REQUIRED) ) + mbedtls_snprintf( buf, buflen, "PEM - Private key password can't be empty" ); + if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" ); + if( use_ret == -(MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" ); + if( use_ret == -(MBEDTLS_ERR_PEM_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "PEM - Bad input parameters to function" ); +#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */ + +#if defined(MBEDTLS_PK_C) + if( use_ret == -(MBEDTLS_ERR_PK_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "PK - Memory allocation failed" ); + if( use_ret == -(MBEDTLS_ERR_PK_TYPE_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "PK - Type mismatch, eg attempt to encrypt with an ECDSA key" ); + if( use_ret == -(MBEDTLS_ERR_PK_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "PK - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_PK_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "PK - Read/write of file failed" ); + if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_VERSION) ) + mbedtls_snprintf( buf, buflen, "PK - Unsupported key version" ); + if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT) ) + mbedtls_snprintf( buf, buflen, "PK - Invalid key tag or value" ); + if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_PK_ALG) ) + mbedtls_snprintf( buf, buflen, "PK - Key algorithm is unsupported (only RSA and EC are supported)" ); + if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_REQUIRED) ) + mbedtls_snprintf( buf, buflen, "PK - Private key password can't be empty" ); + if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "PK - Given private key password does not allow for correct decryption" ); + if( use_ret == -(MBEDTLS_ERR_PK_INVALID_PUBKEY) ) + mbedtls_snprintf( buf, buflen, "PK - The pubkey tag or value is invalid (only RSA and EC are supported)" ); + if( use_ret == -(MBEDTLS_ERR_PK_INVALID_ALG) ) + mbedtls_snprintf( buf, buflen, "PK - The algorithm tag or value is invalid" ); + if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE) ) + mbedtls_snprintf( buf, buflen, "PK - Elliptic curve is unsupported (only NIST curves are supported)" ); + if( use_ret == -(MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "PK - Unavailable feature, e.g. RSA disabled for RSA key" ); + if( use_ret == -(MBEDTLS_ERR_PK_SIG_LEN_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "PK - The signature is valid but its length is less than expected" ); +#endif /* MBEDTLS_PK_C */ + +#if defined(MBEDTLS_PKCS12_C) + if( use_ret == -(MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "PKCS12 - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "PKCS12 - Feature not available, e.g. unsupported encryption scheme" ); + if( use_ret == -(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT) ) + mbedtls_snprintf( buf, buflen, "PKCS12 - PBE ASN.1 data not as expected" ); + if( use_ret == -(MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "PKCS12 - Given private key password does not allow for correct decryption" ); +#endif /* MBEDTLS_PKCS12_C */ + +#if defined(MBEDTLS_PKCS5_C) + if( use_ret == -(MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "PKCS5 - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_PKCS5_INVALID_FORMAT) ) + mbedtls_snprintf( buf, buflen, "PKCS5 - Unexpected ASN.1 data" ); + if( use_ret == -(MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "PKCS5 - Requested encryption or digest alg not available" ); + if( use_ret == -(MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "PKCS5 - Given private key password does not allow for correct decryption" ); +#endif /* MBEDTLS_PKCS5_C */ + +#if defined(MBEDTLS_RSA_C) + if( use_ret == -(MBEDTLS_ERR_RSA_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "RSA - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_RSA_INVALID_PADDING) ) + mbedtls_snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" ); + if( use_ret == -(MBEDTLS_ERR_RSA_KEY_GEN_FAILED) ) + mbedtls_snprintf( buf, buflen, "RSA - Something failed during generation of a key" ); + if( use_ret == -(MBEDTLS_ERR_RSA_KEY_CHECK_FAILED) ) + mbedtls_snprintf( buf, buflen, "RSA - Key failed to pass the library's validity check" ); + if( use_ret == -(MBEDTLS_ERR_RSA_PUBLIC_FAILED) ) + mbedtls_snprintf( buf, buflen, "RSA - The public key operation failed" ); + if( use_ret == -(MBEDTLS_ERR_RSA_PRIVATE_FAILED) ) + mbedtls_snprintf( buf, buflen, "RSA - The private key operation failed" ); + if( use_ret == -(MBEDTLS_ERR_RSA_VERIFY_FAILED) ) + mbedtls_snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" ); + if( use_ret == -(MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE) ) + mbedtls_snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" ); + if( use_ret == -(MBEDTLS_ERR_RSA_RNG_FAILED) ) + mbedtls_snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" ); +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_SSL_TLS_C) + if( use_ret == -(MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "SSL - The requested feature is not available" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "SSL - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_MAC) ) + mbedtls_snprintf( buf, buflen, "SSL - Verification of the message MAC failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_RECORD) ) + mbedtls_snprintf( buf, buflen, "SSL - An invalid SSL record was received" ); + if( use_ret == -(MBEDTLS_ERR_SSL_CONN_EOF) ) + mbedtls_snprintf( buf, buflen, "SSL - The connection indicated an EOF" ); + if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_CIPHER) ) + mbedtls_snprintf( buf, buflen, "SSL - An unknown cipher was received" ); + if( use_ret == -(MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN) ) + mbedtls_snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" ); + if( use_ret == -(MBEDTLS_ERR_SSL_NO_RNG) ) + mbedtls_snprintf( buf, buflen, "SSL - No RNG was provided to the SSL module" ); + if( use_ret == -(MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE) ) + mbedtls_snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" ); + if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE) ) + mbedtls_snprintf( buf, buflen, "SSL - Our own certificate(s) is/are too large to send in an SSL message" ); + if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED) ) + mbedtls_snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" ); + if( use_ret == -(MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) ) + mbedtls_snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED) ) + mbedtls_snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" ); + if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) ) + mbedtls_snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" ); + if( use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE) ) + { + mbedtls_snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" ); + return; + } + if( use_ret == -(MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED) ) + mbedtls_snprintf( buf, buflen, "SSL - Verification of our peer failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) ) + mbedtls_snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_FINISHED) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "SSL - Memory allocation failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FAILED) ) + mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" ); + if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH) ) + mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" ); + if( use_ret == -(MBEDTLS_ERR_SSL_COMPRESSION_FAILED) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION) ) + mbedtls_snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET) ) + mbedtls_snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" ); + if( use_ret == -(MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) ) + mbedtls_snprintf( buf, buflen, "SSL - Session ticket has expired" ); + if( use_ret == -(MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" ); + if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) ) + mbedtls_snprintf( buf, buflen, "SSL - Unknown identity received (eg, PSK identity)" ); + if( use_ret == -(MBEDTLS_ERR_SSL_INTERNAL_ERROR) ) + mbedtls_snprintf( buf, buflen, "SSL - Internal error (eg, unexpected failure in lower-level module)" ); + if( use_ret == -(MBEDTLS_ERR_SSL_COUNTER_WRAPPING) ) + mbedtls_snprintf( buf, buflen, "SSL - A counter would wrap (eg, too many messages exchanged)" ); + if( use_ret == -(MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO) ) + mbedtls_snprintf( buf, buflen, "SSL - Unexpected message at ServerHello in renegotiation" ); + if( use_ret == -(MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) ) + mbedtls_snprintf( buf, buflen, "SSL - DTLS client must retry for hello verification" ); + if( use_ret == -(MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "SSL - A buffer is too small to receive or write a message" ); + if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) ) + mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" ); + if( use_ret == -(MBEDTLS_ERR_SSL_WANT_READ) ) + mbedtls_snprintf( buf, buflen, "SSL - Connection requires a read call" ); + if( use_ret == -(MBEDTLS_ERR_SSL_WANT_WRITE) ) + mbedtls_snprintf( buf, buflen, "SSL - Connection requires a write call" ); + if( use_ret == -(MBEDTLS_ERR_SSL_TIMEOUT) ) + mbedtls_snprintf( buf, buflen, "SSL - The operation timed out" ); + if( use_ret == -(MBEDTLS_ERR_SSL_CLIENT_RECONNECT) ) + mbedtls_snprintf( buf, buflen, "SSL - The client initiated a reconnect from the same port" ); + if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_RECORD) ) + mbedtls_snprintf( buf, buflen, "SSL - Record header looks valid but is not expected" ); + if( use_ret == -(MBEDTLS_ERR_SSL_NON_FATAL) ) + mbedtls_snprintf( buf, buflen, "SSL - The alert message received indicates a non-fatal error" ); + if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH) ) + mbedtls_snprintf( buf, buflen, "SSL - Couldn't set the hash for verifying CertificateVerify" ); +#endif /* MBEDTLS_SSL_TLS_C */ + +#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) + if( use_ret == -(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" ); + if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_OID) ) + mbedtls_snprintf( buf, buflen, "X509 - Requested OID is unknown" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_FORMAT) ) + mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR format is invalid, e.g. different type expected" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_VERSION) ) + mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR version element is invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SERIAL) ) + mbedtls_snprintf( buf, buflen, "X509 - The serial tag or value is invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_ALG) ) + mbedtls_snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_NAME) ) + mbedtls_snprintf( buf, buflen, "X509 - The name tag or value is invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_DATE) ) + mbedtls_snprintf( buf, buflen, "X509 - The date tag or value is invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SIGNATURE) ) + mbedtls_snprintf( buf, buflen, "X509 - The signature tag or value invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_INVALID_EXTENSIONS) ) + mbedtls_snprintf( buf, buflen, "X509 - The extension tag or value is invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_VERSION) ) + mbedtls_snprintf( buf, buflen, "X509 - CRT/CRL/CSR has an unsupported version number" ); + if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG) ) + mbedtls_snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" ); + if( use_ret == -(MBEDTLS_ERR_X509_SIG_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "X509 - Signature algorithms do not match. (see \\c ::mbedtls_x509_crt sig_oid)" ); + if( use_ret == -(MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) ) + mbedtls_snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" ); + if( use_ret == -(MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT) ) + mbedtls_snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" ); + if( use_ret == -(MBEDTLS_ERR_X509_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "X509 - Input invalid" ); + if( use_ret == -(MBEDTLS_ERR_X509_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "X509 - Allocation of memory failed" ); + if( use_ret == -(MBEDTLS_ERR_X509_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "X509 - Read/write of file failed" ); + if( use_ret == -(MBEDTLS_ERR_X509_BUFFER_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "X509 - Destination buffer is too small" ); +#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */ + // END generated code + + if( strlen( buf ) == 0 ) + mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret ); + } + + use_ret = ret & ~0xFF80; + + if( use_ret == 0 ) + return; + + // If high level code is present, make a concatenation between both + // error strings. + // + len = strlen( buf ); + + if( len > 0 ) + { + if( buflen - len < 5 ) + return; + + mbedtls_snprintf( buf + len, buflen - len, " : " ); + + buf += len + 3; + buflen -= len + 3; + } + + // Low level error codes + // + // BEGIN generated code +#if defined(MBEDTLS_AES_C) + if( use_ret == -(MBEDTLS_ERR_AES_INVALID_KEY_LENGTH) ) + mbedtls_snprintf( buf, buflen, "AES - Invalid key length" ); + if( use_ret == -(MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH) ) + mbedtls_snprintf( buf, buflen, "AES - Invalid data input length" ); +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_ASN1_PARSE_C) + if( use_ret == -(MBEDTLS_ERR_ASN1_OUT_OF_DATA) ) + mbedtls_snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" ); + if( use_ret == -(MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) ) + mbedtls_snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" ); + if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_LENGTH) ) + mbedtls_snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" ); + if( use_ret == -(MBEDTLS_ERR_ASN1_LENGTH_MISMATCH) ) + mbedtls_snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" ); + if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_DATA) ) + mbedtls_snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" ); + if( use_ret == -(MBEDTLS_ERR_ASN1_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "ASN1 - Memory allocation failed" ); + if( use_ret == -(MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "ASN1 - Buffer too small when writing ASN.1 data structure" ); +#endif /* MBEDTLS_ASN1_PARSE_C */ + +#if defined(MBEDTLS_BASE64_C) + if( use_ret == -(MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "BASE64 - Output buffer too small" ); + if( use_ret == -(MBEDTLS_ERR_BASE64_INVALID_CHARACTER) ) + mbedtls_snprintf( buf, buflen, "BASE64 - Invalid character in input" ); +#endif /* MBEDTLS_BASE64_C */ + +#if defined(MBEDTLS_BIGNUM_C) + if( use_ret == -(MBEDTLS_ERR_MPI_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" ); + if( use_ret == -(MBEDTLS_ERR_MPI_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_MPI_INVALID_CHARACTER) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" ); + if( use_ret == -(MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" ); + if( use_ret == -(MBEDTLS_ERR_MPI_NEGATIVE_VALUE) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" ); + if( use_ret == -(MBEDTLS_ERR_MPI_DIVISION_BY_ZERO) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" ); + if( use_ret == -(MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" ); + if( use_ret == -(MBEDTLS_ERR_MPI_ALLOC_FAILED) ) + mbedtls_snprintf( buf, buflen, "BIGNUM - Memory allocation failed" ); +#endif /* MBEDTLS_BIGNUM_C */ + +#if defined(MBEDTLS_BLOWFISH_C) + if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH) ) + mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid key length" ); + if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH) ) + mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid data input length" ); +#endif /* MBEDTLS_BLOWFISH_C */ + +#if defined(MBEDTLS_CAMELLIA_C) + if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH) ) + mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid key length" ); + if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH) ) + mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid data input length" ); +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_CCM_C) + if( use_ret == -(MBEDTLS_ERR_CCM_BAD_INPUT) ) + mbedtls_snprintf( buf, buflen, "CCM - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_CCM_AUTH_FAILED) ) + mbedtls_snprintf( buf, buflen, "CCM - Authenticated decryption failed" ); +#endif /* MBEDTLS_CCM_C */ + +#if defined(MBEDTLS_CTR_DRBG_C) + if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED) ) + mbedtls_snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" ); + if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG) ) + mbedtls_snprintf( buf, buflen, "CTR_DRBG - Too many random requested in single call" ); + if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG) ) + mbedtls_snprintf( buf, buflen, "CTR_DRBG - Input too large (Entropy + additional)" ); + if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "CTR_DRBG - Read/write error in file" ); +#endif /* MBEDTLS_CTR_DRBG_C */ + +#if defined(MBEDTLS_DES_C) + if( use_ret == -(MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH) ) + mbedtls_snprintf( buf, buflen, "DES - The data input has an invalid length" ); +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ENTROPY_C) + if( use_ret == -(MBEDTLS_ERR_ENTROPY_SOURCE_FAILED) ) + mbedtls_snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" ); + if( use_ret == -(MBEDTLS_ERR_ENTROPY_MAX_SOURCES) ) + mbedtls_snprintf( buf, buflen, "ENTROPY - No more sources can be added" ); + if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED) ) + mbedtls_snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" ); + if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE) ) + mbedtls_snprintf( buf, buflen, "ENTROPY - No strong sources have been added to poll" ); + if( use_ret == -(MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "ENTROPY - Read/write error in file" ); +#endif /* MBEDTLS_ENTROPY_C */ + +#if defined(MBEDTLS_GCM_C) + if( use_ret == -(MBEDTLS_ERR_GCM_AUTH_FAILED) ) + mbedtls_snprintf( buf, buflen, "GCM - Authenticated decryption failed" ); + if( use_ret == -(MBEDTLS_ERR_GCM_BAD_INPUT) ) + mbedtls_snprintf( buf, buflen, "GCM - Bad input parameters to function" ); +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_HMAC_DRBG_C) + if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG) ) + mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Too many random requested in single call" ); + if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG) ) + mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Input too large (Entropy + additional)" ); + if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR) ) + mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Read/write error in file" ); + if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED) ) + mbedtls_snprintf( buf, buflen, "HMAC_DRBG - The entropy source failed" ); +#endif /* MBEDTLS_HMAC_DRBG_C */ + +#if defined(MBEDTLS_NET_C) + if( use_ret == -(MBEDTLS_ERR_NET_SOCKET_FAILED) ) + mbedtls_snprintf( buf, buflen, "NET - Failed to open a socket" ); + if( use_ret == -(MBEDTLS_ERR_NET_CONNECT_FAILED) ) + mbedtls_snprintf( buf, buflen, "NET - The connection to the given server / port failed" ); + if( use_ret == -(MBEDTLS_ERR_NET_BIND_FAILED) ) + mbedtls_snprintf( buf, buflen, "NET - Binding of the socket failed" ); + if( use_ret == -(MBEDTLS_ERR_NET_LISTEN_FAILED) ) + mbedtls_snprintf( buf, buflen, "NET - Could not listen on the socket" ); + if( use_ret == -(MBEDTLS_ERR_NET_ACCEPT_FAILED) ) + mbedtls_snprintf( buf, buflen, "NET - Could not accept the incoming connection" ); + if( use_ret == -(MBEDTLS_ERR_NET_RECV_FAILED) ) + mbedtls_snprintf( buf, buflen, "NET - Reading information from the socket failed" ); + if( use_ret == -(MBEDTLS_ERR_NET_SEND_FAILED) ) + mbedtls_snprintf( buf, buflen, "NET - Sending information through the socket failed" ); + if( use_ret == -(MBEDTLS_ERR_NET_CONN_RESET) ) + mbedtls_snprintf( buf, buflen, "NET - Connection was reset by peer" ); + if( use_ret == -(MBEDTLS_ERR_NET_UNKNOWN_HOST) ) + mbedtls_snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" ); + if( use_ret == -(MBEDTLS_ERR_NET_BUFFER_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "NET - Buffer is too small to hold the data" ); + if( use_ret == -(MBEDTLS_ERR_NET_INVALID_CONTEXT) ) + mbedtls_snprintf( buf, buflen, "NET - The context is invalid, eg because it was free()ed" ); +#endif /* MBEDTLS_NET_C */ + +#if defined(MBEDTLS_OID_C) + if( use_ret == -(MBEDTLS_ERR_OID_NOT_FOUND) ) + mbedtls_snprintf( buf, buflen, "OID - OID is not found" ); + if( use_ret == -(MBEDTLS_ERR_OID_BUF_TOO_SMALL) ) + mbedtls_snprintf( buf, buflen, "OID - output buffer is too small" ); +#endif /* MBEDTLS_OID_C */ + +#if defined(MBEDTLS_PADLOCK_C) + if( use_ret == -(MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED) ) + mbedtls_snprintf( buf, buflen, "PADLOCK - Input data should be aligned" ); +#endif /* MBEDTLS_PADLOCK_C */ + +#if defined(MBEDTLS_THREADING_C) + if( use_ret == -(MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE) ) + mbedtls_snprintf( buf, buflen, "THREADING - The selected feature is not available" ); + if( use_ret == -(MBEDTLS_ERR_THREADING_BAD_INPUT_DATA) ) + mbedtls_snprintf( buf, buflen, "THREADING - Bad input parameters to function" ); + if( use_ret == -(MBEDTLS_ERR_THREADING_MUTEX_ERROR) ) + mbedtls_snprintf( buf, buflen, "THREADING - Locking / unlocking / free failed with error code" ); +#endif /* MBEDTLS_THREADING_C */ + +#if defined(MBEDTLS_XTEA_C) + if( use_ret == -(MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH) ) + mbedtls_snprintf( buf, buflen, "XTEA - The data input has an invalid length" ); +#endif /* MBEDTLS_XTEA_C */ + // END generated code + + if( strlen( buf ) != 0 ) + return; + + mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret ); +} + +#else /* MBEDTLS_ERROR_C */ + +#if defined(MBEDTLS_ERROR_STRERROR_DUMMY) + +/* + * Provide an non-function in case MBEDTLS_ERROR_C is not defined + */ +void mbedtls_strerror( int ret, char *buf, size_t buflen ) +{ + ((void) ret); + + if( buflen > 0 ) + buf[0] = '\0'; +} + +#endif /* MBEDTLS_ERROR_STRERROR_DUMMY */ + +#endif /* MBEDTLS_ERROR_C */ diff --git a/mbedtls/gcm.c b/mbedtls/gcm.c new file mode 100644 index 0000000..f1210c5 --- /dev/null +++ b/mbedtls/gcm.c @@ -0,0 +1,952 @@ +/* + * NIST SP800-38D compliant GCM implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf + * + * See also: + * [MGV] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf + * + * We use the algorithm described as Shoup's method with 4-bit tables in + * [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory. + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_GCM_C) + +#include "mbedtls/gcm.h" + +#include + +#if defined(MBEDTLS_AESNI_C) +#include "mbedtls/aesni.h" +#endif + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Initialize a context + */ +void mbedtls_gcm_init( mbedtls_gcm_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_gcm_context ) ); +} + +/* + * Precompute small multiples of H, that is set + * HH[i] || HL[i] = H times i, + * where i is seen as a field element as in [MGV], ie high-order bits + * correspond to low powers of P. The result is stored in the same way, that + * is the high-order bit of HH corresponds to P^0 and the low-order bit of HL + * corresponds to P^127. + */ +static int gcm_gen_table( mbedtls_gcm_context *ctx ) +{ + int ret, i, j; + uint64_t hi, lo; + uint64_t vl, vh; + unsigned char h[16]; + size_t olen = 0; + + memset( h, 0, 16 ); + if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, h, 16, h, &olen ) ) != 0 ) + return( ret ); + + /* pack h as two 64-bits ints, big-endian */ + GET_UINT32_BE( hi, h, 0 ); + GET_UINT32_BE( lo, h, 4 ); + vh = (uint64_t) hi << 32 | lo; + + GET_UINT32_BE( hi, h, 8 ); + GET_UINT32_BE( lo, h, 12 ); + vl = (uint64_t) hi << 32 | lo; + + /* 8 = 1000 corresponds to 1 in GF(2^128) */ + ctx->HL[8] = vl; + ctx->HH[8] = vh; + +#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) + /* With CLMUL support, we need only h, not the rest of the table */ + if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) + return( 0 ); +#endif + + /* 0 corresponds to 0 in GF(2^128) */ + ctx->HH[0] = 0; + ctx->HL[0] = 0; + + for( i = 4; i > 0; i >>= 1 ) + { + uint32_t T = ( vl & 1 ) * 0xe1000000U; + vl = ( vh << 63 ) | ( vl >> 1 ); + vh = ( vh >> 1 ) ^ ( (uint64_t) T << 32); + + ctx->HL[i] = vl; + ctx->HH[i] = vh; + } + + for( i = 2; i <= 8; i *= 2 ) + { + uint64_t *HiL = ctx->HL + i, *HiH = ctx->HH + i; + vh = *HiH; + vl = *HiL; + for( j = 1; j < i; j++ ) + { + HiH[j] = vh ^ ctx->HH[j]; + HiL[j] = vl ^ ctx->HL[j]; + } + } + + return( 0 ); +} + +int mbedtls_gcm_setkey( mbedtls_gcm_context *ctx, + mbedtls_cipher_id_t cipher, + const unsigned char *key, + unsigned int keybits ) +{ + int ret; + const mbedtls_cipher_info_t *cipher_info; + + cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB ); + if( cipher_info == NULL ) + return( MBEDTLS_ERR_GCM_BAD_INPUT ); + + if( cipher_info->block_size != 16 ) + return( MBEDTLS_ERR_GCM_BAD_INPUT ); + + mbedtls_cipher_free( &ctx->cipher_ctx ); + + if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits, + MBEDTLS_ENCRYPT ) ) != 0 ) + { + return( ret ); + } + + if( ( ret = gcm_gen_table( ctx ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +/* + * Shoup's method for multiplication use this table with + * last4[x] = x times P^128 + * where x and last4[x] are seen as elements of GF(2^128) as in [MGV] + */ +static const uint64_t last4[16] = +{ + 0x0000, 0x1c20, 0x3840, 0x2460, + 0x7080, 0x6ca0, 0x48c0, 0x54e0, + 0xe100, 0xfd20, 0xd940, 0xc560, + 0x9180, 0x8da0, 0xa9c0, 0xb5e0 +}; + +/* + * Sets output to x times H using the precomputed tables. + * x and output are seen as elements of GF(2^128) as in [MGV]. + */ +static void gcm_mult( mbedtls_gcm_context *ctx, const unsigned char x[16], + unsigned char output[16] ) +{ + int i = 0; + unsigned char lo, hi, rem; + uint64_t zh, zl; + +#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) + if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) { + unsigned char h[16]; + + PUT_UINT32_BE( ctx->HH[8] >> 32, h, 0 ); + PUT_UINT32_BE( ctx->HH[8], h, 4 ); + PUT_UINT32_BE( ctx->HL[8] >> 32, h, 8 ); + PUT_UINT32_BE( ctx->HL[8], h, 12 ); + + mbedtls_aesni_gcm_mult( output, x, h ); + return; + } +#endif /* MBEDTLS_AESNI_C && MBEDTLS_HAVE_X86_64 */ + + lo = x[15] & 0xf; + + zh = ctx->HH[lo]; + zl = ctx->HL[lo]; + + for( i = 15; i >= 0; i-- ) + { + lo = x[i] & 0xf; + hi = x[i] >> 4; + + if( i != 15 ) + { + rem = (unsigned char) zl & 0xf; + zl = ( zh << 60 ) | ( zl >> 4 ); + zh = ( zh >> 4 ); + zh ^= (uint64_t) last4[rem] << 48; + zh ^= ctx->HH[lo]; + zl ^= ctx->HL[lo]; + + } + + rem = (unsigned char) zl & 0xf; + zl = ( zh << 60 ) | ( zl >> 4 ); + zh = ( zh >> 4 ); + zh ^= (uint64_t) last4[rem] << 48; + zh ^= ctx->HH[hi]; + zl ^= ctx->HL[hi]; + } + + PUT_UINT32_BE( zh >> 32, output, 0 ); + PUT_UINT32_BE( zh, output, 4 ); + PUT_UINT32_BE( zl >> 32, output, 8 ); + PUT_UINT32_BE( zl, output, 12 ); +} + +int mbedtls_gcm_starts( mbedtls_gcm_context *ctx, + int mode, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len ) +{ + int ret; + unsigned char work_buf[16]; + size_t i; + const unsigned char *p; + size_t use_len, olen = 0; + + /* IV and AD are limited to 2^64 bits, so 2^61 bytes */ + if( ( (uint64_t) iv_len ) >> 61 != 0 || + ( (uint64_t) add_len ) >> 61 != 0 ) + { + return( MBEDTLS_ERR_GCM_BAD_INPUT ); + } + + memset( ctx->y, 0x00, sizeof(ctx->y) ); + memset( ctx->buf, 0x00, sizeof(ctx->buf) ); + + ctx->mode = mode; + ctx->len = 0; + ctx->add_len = 0; + + if( iv_len == 12 ) + { + memcpy( ctx->y, iv, iv_len ); + ctx->y[15] = 1; + } + else + { + memset( work_buf, 0x00, 16 ); + PUT_UINT32_BE( iv_len * 8, work_buf, 12 ); + + p = iv; + while( iv_len > 0 ) + { + use_len = ( iv_len < 16 ) ? iv_len : 16; + + for( i = 0; i < use_len; i++ ) + ctx->y[i] ^= p[i]; + + gcm_mult( ctx, ctx->y, ctx->y ); + + iv_len -= use_len; + p += use_len; + } + + for( i = 0; i < 16; i++ ) + ctx->y[i] ^= work_buf[i]; + + gcm_mult( ctx, ctx->y, ctx->y ); + } + + if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ctx->base_ectr, + &olen ) ) != 0 ) + { + return( ret ); + } + + ctx->add_len = add_len; + p = add; + while( add_len > 0 ) + { + use_len = ( add_len < 16 ) ? add_len : 16; + + for( i = 0; i < use_len; i++ ) + ctx->buf[i] ^= p[i]; + + gcm_mult( ctx, ctx->buf, ctx->buf ); + + add_len -= use_len; + p += use_len; + } + + return( 0 ); +} + +int mbedtls_gcm_update( mbedtls_gcm_context *ctx, + size_t length, + const unsigned char *input, + unsigned char *output ) +{ + int ret; + unsigned char ectr[16]; + size_t i; + const unsigned char *p; + unsigned char *out_p = output; + size_t use_len, olen = 0; + + if( output > input && (size_t) ( output - input ) < length ) + return( MBEDTLS_ERR_GCM_BAD_INPUT ); + + /* Total length is restricted to 2^39 - 256 bits, ie 2^36 - 2^5 bytes + * Also check for possible overflow */ + if( ctx->len + length < ctx->len || + (uint64_t) ctx->len + length > 0xFFFFFFFE0ull ) + { + return( MBEDTLS_ERR_GCM_BAD_INPUT ); + } + + ctx->len += length; + + p = input; + while( length > 0 ) + { + use_len = ( length < 16 ) ? length : 16; + + for( i = 16; i > 12; i-- ) + if( ++ctx->y[i - 1] != 0 ) + break; + + if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ectr, + &olen ) ) != 0 ) + { + return( ret ); + } + + for( i = 0; i < use_len; i++ ) + { + if( ctx->mode == MBEDTLS_GCM_DECRYPT ) + ctx->buf[i] ^= p[i]; + out_p[i] = ectr[i] ^ p[i]; + if( ctx->mode == MBEDTLS_GCM_ENCRYPT ) + ctx->buf[i] ^= out_p[i]; + } + + gcm_mult( ctx, ctx->buf, ctx->buf ); + + length -= use_len; + p += use_len; + out_p += use_len; + } + + return( 0 ); +} + +int mbedtls_gcm_finish( mbedtls_gcm_context *ctx, + unsigned char *tag, + size_t tag_len ) +{ + unsigned char work_buf[16]; + size_t i; + uint64_t orig_len = ctx->len * 8; + uint64_t orig_add_len = ctx->add_len * 8; + + if( tag_len > 16 || tag_len < 4 ) + return( MBEDTLS_ERR_GCM_BAD_INPUT ); + + memcpy( tag, ctx->base_ectr, tag_len ); + + if( orig_len || orig_add_len ) + { + memset( work_buf, 0x00, 16 ); + + PUT_UINT32_BE( ( orig_add_len >> 32 ), work_buf, 0 ); + PUT_UINT32_BE( ( orig_add_len ), work_buf, 4 ); + PUT_UINT32_BE( ( orig_len >> 32 ), work_buf, 8 ); + PUT_UINT32_BE( ( orig_len ), work_buf, 12 ); + + for( i = 0; i < 16; i++ ) + ctx->buf[i] ^= work_buf[i]; + + gcm_mult( ctx, ctx->buf, ctx->buf ); + + for( i = 0; i < tag_len; i++ ) + tag[i] ^= ctx->buf[i]; + } + + return( 0 ); +} + +int mbedtls_gcm_crypt_and_tag( mbedtls_gcm_context *ctx, + int mode, + size_t length, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len, + const unsigned char *input, + unsigned char *output, + size_t tag_len, + unsigned char *tag ) +{ + int ret; + + if( ( ret = mbedtls_gcm_starts( ctx, mode, iv, iv_len, add, add_len ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_gcm_update( ctx, length, input, output ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_gcm_finish( ctx, tag, tag_len ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx, + size_t length, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len, + const unsigned char *tag, + size_t tag_len, + const unsigned char *input, + unsigned char *output ) +{ + int ret; + unsigned char check_tag[16]; + size_t i; + int diff; + + if( ( ret = mbedtls_gcm_crypt_and_tag( ctx, MBEDTLS_GCM_DECRYPT, length, + iv, iv_len, add, add_len, + input, output, tag_len, check_tag ) ) != 0 ) + { + return( ret ); + } + + /* Check tag in "constant-time" */ + for( diff = 0, i = 0; i < tag_len; i++ ) + diff |= tag[i] ^ check_tag[i]; + + if( diff != 0 ) + { + mbedtls_zeroize( output, length ); + return( MBEDTLS_ERR_GCM_AUTH_FAILED ); + } + + return( 0 ); +} + +void mbedtls_gcm_free( mbedtls_gcm_context *ctx ) +{ + mbedtls_cipher_free( &ctx->cipher_ctx ); + mbedtls_zeroize( ctx, sizeof( mbedtls_gcm_context ) ); +} + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) +/* + * AES-GCM test vectors from: + * + * http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip + */ +#define MAX_TESTS 6 + +static const int key_index[MAX_TESTS] = + { 0, 0, 1, 1, 1, 1 }; + +static const unsigned char key[MAX_TESTS][32] = +{ + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c, + 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08, + 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c, + 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 }, +}; + +static const size_t iv_len[MAX_TESTS] = + { 12, 12, 12, 12, 8, 60 }; + +static const int iv_index[MAX_TESTS] = + { 0, 0, 1, 1, 1, 2 }; + +static const unsigned char iv[MAX_TESTS][64] = +{ + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }, + { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad, + 0xde, 0xca, 0xf8, 0x88 }, + { 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5, + 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa, + 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1, + 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28, + 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39, + 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54, + 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57, + 0xa6, 0x37, 0xb3, 0x9b }, +}; + +static const size_t add_len[MAX_TESTS] = + { 0, 0, 0, 20, 20, 20 }; + +static const int add_index[MAX_TESTS] = + { 0, 0, 0, 1, 1, 1 }; + +static const unsigned char additional[MAX_TESTS][64] = +{ + { 0x00 }, + { 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef, + 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef, + 0xab, 0xad, 0xda, 0xd2 }, +}; + +static const size_t pt_len[MAX_TESTS] = + { 0, 16, 64, 60, 60, 60 }; + +static const int pt_index[MAX_TESTS] = + { 0, 0, 1, 1, 1, 1 }; + +static const unsigned char pt[MAX_TESTS][64] = +{ + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5, + 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a, + 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda, + 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72, + 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53, + 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25, + 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57, + 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 }, +}; + +static const unsigned char ct[MAX_TESTS * 3][64] = +{ + { 0x00 }, + { 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92, + 0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 }, + { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24, + 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c, + 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0, + 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e, + 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c, + 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05, + 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97, + 0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 }, + { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24, + 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c, + 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0, + 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e, + 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c, + 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05, + 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97, + 0x3d, 0x58, 0xe0, 0x91 }, + { 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a, + 0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55, + 0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8, + 0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23, + 0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2, + 0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42, + 0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07, + 0xc2, 0x3f, 0x45, 0x98 }, + { 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6, + 0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94, + 0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8, + 0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7, + 0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90, + 0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f, + 0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03, + 0x4c, 0x34, 0xae, 0xe5 }, + { 0x00 }, + { 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41, + 0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 }, + { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41, + 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57, + 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84, + 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c, + 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25, + 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47, + 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9, + 0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 }, + { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41, + 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57, + 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84, + 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c, + 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25, + 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47, + 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9, + 0xcc, 0xda, 0x27, 0x10 }, + { 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54, + 0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8, + 0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f, + 0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57, + 0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75, + 0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9, + 0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f, + 0xa0, 0xf0, 0x62, 0xf7 }, + { 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c, + 0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff, + 0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef, + 0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45, + 0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9, + 0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3, + 0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7, + 0xe9, 0xb7, 0x37, 0x3b }, + { 0x00 }, + { 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e, + 0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 }, + { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07, + 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d, + 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9, + 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa, + 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d, + 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38, + 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a, + 0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad }, + { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07, + 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d, + 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9, + 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa, + 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d, + 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38, + 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a, + 0xbc, 0xc9, 0xf6, 0x62 }, + { 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32, + 0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb, + 0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa, + 0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0, + 0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0, + 0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78, + 0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99, + 0xf4, 0x7c, 0x9b, 0x1f }, + { 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1, + 0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20, + 0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19, + 0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4, + 0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45, + 0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde, + 0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e, + 0x44, 0xae, 0x7e, 0x3f }, +}; + +static const unsigned char tag[MAX_TESTS * 3][16] = +{ + { 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61, + 0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a }, + { 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd, + 0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf }, + { 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6, + 0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 }, + { 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb, + 0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 }, + { 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85, + 0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb }, + { 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa, + 0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 }, + { 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b, + 0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 }, + { 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab, + 0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb }, + { 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf, + 0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 }, + { 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f, + 0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c }, + { 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24, + 0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 }, + { 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb, + 0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 }, + { 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9, + 0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b }, + { 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0, + 0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 }, + { 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd, + 0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c }, + { 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68, + 0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b }, + { 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4, + 0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 }, + { 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0, + 0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a }, +}; + +int mbedtls_gcm_self_test( int verbose ) +{ + mbedtls_gcm_context ctx; + unsigned char buf[64]; + unsigned char tag_buf[16]; + int i, j, ret; + mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES; + + mbedtls_gcm_init( &ctx ); + + for( j = 0; j < 3; j++ ) + { + int key_len = 128 + 64 * j; + + for( i = 0; i < MAX_TESTS; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " AES-GCM-%3d #%d (%s): ", + key_len, i, "enc" ); + + mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len ); + + ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT, + pt_len[i], + iv[iv_index[i]], iv_len[i], + additional[add_index[i]], add_len[i], + pt[pt_index[i]], buf, 16, tag_buf ); + + if( ret != 0 || + memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 || + memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + mbedtls_gcm_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " AES-GCM-%3d #%d (%s): ", + key_len, i, "dec" ); + + mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len ); + + ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_DECRYPT, + pt_len[i], + iv[iv_index[i]], iv_len[i], + additional[add_index[i]], add_len[i], + ct[j * 6 + i], buf, 16, tag_buf ); + + if( ret != 0 || + memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 || + memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + mbedtls_gcm_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " AES-GCM-%3d #%d split (%s): ", + key_len, i, "enc" ); + + mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len ); + + ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_ENCRYPT, + iv[iv_index[i]], iv_len[i], + additional[add_index[i]], add_len[i] ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( pt_len[i] > 32 ) + { + size_t rest_len = pt_len[i] - 32; + ret = mbedtls_gcm_update( &ctx, 32, pt[pt_index[i]], buf ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + ret = mbedtls_gcm_update( &ctx, rest_len, pt[pt_index[i]] + 32, + buf + 32 ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + else + { + ret = mbedtls_gcm_update( &ctx, pt_len[i], pt[pt_index[i]], buf ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + + ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 ); + if( ret != 0 || + memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 || + memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + mbedtls_gcm_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " AES-GCM-%3d #%d split (%s): ", + key_len, i, "dec" ); + + mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len ); + + ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_DECRYPT, + iv[iv_index[i]], iv_len[i], + additional[add_index[i]], add_len[i] ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( pt_len[i] > 32 ) + { + size_t rest_len = pt_len[i] - 32; + ret = mbedtls_gcm_update( &ctx, 32, ct[j * 6 + i], buf ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + ret = mbedtls_gcm_update( &ctx, rest_len, ct[j * 6 + i] + 32, + buf + 32 ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + else + { + ret = mbedtls_gcm_update( &ctx, pt_len[i], ct[j * 6 + i], buf ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + + ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 ); + if( ret != 0 || + memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 || + memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + mbedtls_gcm_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + } + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + +#endif /* MBEDTLS_GCM_C */ diff --git a/mbedtls/havege.c b/mbedtls/havege.c new file mode 100644 index 0000000..2b75ef7 --- /dev/null +++ b/mbedtls/havege.c @@ -0,0 +1,245 @@ +/** + * \brief HAVEGE: HArdware Volatile Entropy Gathering and Expansion + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The HAVEGE RNG was designed by Andre Seznec in 2002. + * + * http://www.irisa.fr/caps/projects/hipsor/publi.php + * + * Contact: seznec(at)irisa_dot_fr - orocheco(at)irisa_dot_fr + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_HAVEGE_C) + +#include "mbedtls/havege.h" +#include "mbedtls/timing.h" + +#include + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* ------------------------------------------------------------------------ + * On average, one iteration accesses two 8-word blocks in the havege WALK + * table, and generates 16 words in the RES array. + * + * The data read in the WALK table is updated and permuted after each use. + * The result of the hardware clock counter read is used for this update. + * + * 25 conditional tests are present. The conditional tests are grouped in + * two nested groups of 12 conditional tests and 1 test that controls the + * permutation; on average, there should be 6 tests executed and 3 of them + * should be mispredicted. + * ------------------------------------------------------------------------ + */ + +#define SWAP(X,Y) { int *T = X; X = Y; Y = T; } + +#define TST1_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1; +#define TST2_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1; + +#define TST1_LEAVE U1++; } +#define TST2_LEAVE U2++; } + +#define ONE_ITERATION \ + \ + PTEST = PT1 >> 20; \ + \ + TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \ + TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \ + TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \ + \ + TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \ + TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \ + TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \ + \ + PTX = (PT1 >> 18) & 7; \ + PT1 &= 0x1FFF; \ + PT2 &= 0x1FFF; \ + CLK = (int) mbedtls_timing_hardclock(); \ + \ + i = 0; \ + A = &WALK[PT1 ]; RES[i++] ^= *A; \ + B = &WALK[PT2 ]; RES[i++] ^= *B; \ + C = &WALK[PT1 ^ 1]; RES[i++] ^= *C; \ + D = &WALK[PT2 ^ 4]; RES[i++] ^= *D; \ + \ + IN = (*A >> (1)) ^ (*A << (31)) ^ CLK; \ + *A = (*B >> (2)) ^ (*B << (30)) ^ CLK; \ + *B = IN ^ U1; \ + *C = (*C >> (3)) ^ (*C << (29)) ^ CLK; \ + *D = (*D >> (4)) ^ (*D << (28)) ^ CLK; \ + \ + A = &WALK[PT1 ^ 2]; RES[i++] ^= *A; \ + B = &WALK[PT2 ^ 2]; RES[i++] ^= *B; \ + C = &WALK[PT1 ^ 3]; RES[i++] ^= *C; \ + D = &WALK[PT2 ^ 6]; RES[i++] ^= *D; \ + \ + if( PTEST & 1 ) SWAP( A, C ); \ + \ + IN = (*A >> (5)) ^ (*A << (27)) ^ CLK; \ + *A = (*B >> (6)) ^ (*B << (26)) ^ CLK; \ + *B = IN; CLK = (int) mbedtls_timing_hardclock(); \ + *C = (*C >> (7)) ^ (*C << (25)) ^ CLK; \ + *D = (*D >> (8)) ^ (*D << (24)) ^ CLK; \ + \ + A = &WALK[PT1 ^ 4]; \ + B = &WALK[PT2 ^ 1]; \ + \ + PTEST = PT2 >> 1; \ + \ + PT2 = (RES[(i - 8) ^ PTY] ^ WALK[PT2 ^ PTY ^ 7]); \ + PT2 = ((PT2 & 0x1FFF) & (~8)) ^ ((PT1 ^ 8) & 0x8); \ + PTY = (PT2 >> 10) & 7; \ + \ + TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \ + TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \ + TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \ + \ + TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \ + TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \ + TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \ + \ + C = &WALK[PT1 ^ 5]; \ + D = &WALK[PT2 ^ 5]; \ + \ + RES[i++] ^= *A; \ + RES[i++] ^= *B; \ + RES[i++] ^= *C; \ + RES[i++] ^= *D; \ + \ + IN = (*A >> ( 9)) ^ (*A << (23)) ^ CLK; \ + *A = (*B >> (10)) ^ (*B << (22)) ^ CLK; \ + *B = IN ^ U2; \ + *C = (*C >> (11)) ^ (*C << (21)) ^ CLK; \ + *D = (*D >> (12)) ^ (*D << (20)) ^ CLK; \ + \ + A = &WALK[PT1 ^ 6]; RES[i++] ^= *A; \ + B = &WALK[PT2 ^ 3]; RES[i++] ^= *B; \ + C = &WALK[PT1 ^ 7]; RES[i++] ^= *C; \ + D = &WALK[PT2 ^ 7]; RES[i++] ^= *D; \ + \ + IN = (*A >> (13)) ^ (*A << (19)) ^ CLK; \ + *A = (*B >> (14)) ^ (*B << (18)) ^ CLK; \ + *B = IN; \ + *C = (*C >> (15)) ^ (*C << (17)) ^ CLK; \ + *D = (*D >> (16)) ^ (*D << (16)) ^ CLK; \ + \ + PT1 = ( RES[( i - 8 ) ^ PTX] ^ \ + WALK[PT1 ^ PTX ^ 7] ) & (~1); \ + PT1 ^= (PT2 ^ 0x10) & 0x10; \ + \ + for( n++, i = 0; i < 16; i++ ) \ + hs->pool[n % MBEDTLS_HAVEGE_COLLECT_SIZE] ^= RES[i]; + +/* + * Entropy gathering function + */ +static void havege_fill( mbedtls_havege_state *hs ) +{ + int i, n = 0; + int U1, U2, *A, *B, *C, *D; + int PT1, PT2, *WALK, RES[16]; + int PTX, PTY, CLK, PTEST, IN; + + WALK = hs->WALK; + PT1 = hs->PT1; + PT2 = hs->PT2; + + PTX = U1 = 0; + PTY = U2 = 0; + + (void)PTX; + + memset( RES, 0, sizeof( RES ) ); + + while( n < MBEDTLS_HAVEGE_COLLECT_SIZE * 4 ) + { + ONE_ITERATION + ONE_ITERATION + ONE_ITERATION + ONE_ITERATION + } + + hs->PT1 = PT1; + hs->PT2 = PT2; + + hs->offset[0] = 0; + hs->offset[1] = MBEDTLS_HAVEGE_COLLECT_SIZE / 2; +} + +/* + * HAVEGE initialization + */ +void mbedtls_havege_init( mbedtls_havege_state *hs ) +{ + memset( hs, 0, sizeof( mbedtls_havege_state ) ); + + havege_fill( hs ); +} + +void mbedtls_havege_free( mbedtls_havege_state *hs ) +{ + if( hs == NULL ) + return; + + mbedtls_zeroize( hs, sizeof( mbedtls_havege_state ) ); +} + +/* + * HAVEGE rand function + */ +int mbedtls_havege_random( void *p_rng, unsigned char *buf, size_t len ) +{ + int val; + size_t use_len; + mbedtls_havege_state *hs = (mbedtls_havege_state *) p_rng; + unsigned char *p = buf; + + while( len > 0 ) + { + use_len = len; + if( use_len > sizeof(int) ) + use_len = sizeof(int); + + if( hs->offset[1] >= MBEDTLS_HAVEGE_COLLECT_SIZE ) + havege_fill( hs ); + + val = hs->pool[hs->offset[0]++]; + val ^= hs->pool[hs->offset[1]++]; + + memcpy( p, &val, use_len ); + + len -= use_len; + p += use_len; + } + + return( 0 ); +} + +#endif /* MBEDTLS_HAVEGE_C */ diff --git a/mbedtls/hmac_drbg.c b/mbedtls/hmac_drbg.c new file mode 100644 index 0000000..bf5f9b5 --- /dev/null +++ b/mbedtls/hmac_drbg.c @@ -0,0 +1,529 @@ +/* + * HMAC_DRBG implementation (NIST SP 800-90) + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * The NIST SP 800-90A DRBGs are described in the following publication. + * http://csrc.nist.gov/publications/nistpubs/800-90A/SP800-90A.pdf + * References below are based on rev. 1 (January 2012). + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_HMAC_DRBG_C) + +#include "mbedtls/hmac_drbg.h" + +#include + +#if defined(MBEDTLS_FS_IO) +#include +#endif + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_SELF_TEST */ +#endif /* MBEDTLS_PLATFORM_C */ + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * HMAC_DRBG context initialization + */ +void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_hmac_drbg_context ) ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif +} + +/* + * HMAC_DRBG update, using optional additional data (10.1.2.2) + */ +void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx, + const unsigned char *additional, size_t add_len ) +{ + size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info ); + unsigned char rounds = ( additional != NULL && add_len != 0 ) ? 2 : 1; + unsigned char sep[1]; + unsigned char K[MBEDTLS_MD_MAX_SIZE]; + + for( sep[0] = 0; sep[0] < rounds; sep[0]++ ) + { + /* Step 1 or 4 */ + mbedtls_md_hmac_reset( &ctx->md_ctx ); + mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len ); + mbedtls_md_hmac_update( &ctx->md_ctx, sep, 1 ); + if( rounds == 2 ) + mbedtls_md_hmac_update( &ctx->md_ctx, additional, add_len ); + mbedtls_md_hmac_finish( &ctx->md_ctx, K ); + + /* Step 2 or 5 */ + mbedtls_md_hmac_starts( &ctx->md_ctx, K, md_len ); + mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len ); + mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ); + } +} + +/* + * Simplified HMAC_DRBG initialisation (for use with deterministic ECDSA) + */ +int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *ctx, + const mbedtls_md_info_t * md_info, + const unsigned char *data, size_t data_len ) +{ + int ret; + + if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 ) + return( ret ); + + /* + * Set initial working state. + * Use the V memory location, which is currently all 0, to initialize the + * MD context with an all-zero key. Then set V to its initial value. + */ + mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, mbedtls_md_get_size( md_info ) ); + memset( ctx->V, 0x01, mbedtls_md_get_size( md_info ) ); + + mbedtls_hmac_drbg_update( ctx, data, data_len ); + + return( 0 ); +} + +/* + * HMAC_DRBG reseeding: 10.1.2.4 (arabic) + 9.2 (Roman) + */ +int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx, + const unsigned char *additional, size_t len ) +{ + unsigned char seed[MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT]; + size_t seedlen; + + /* III. Check input length */ + if( len > MBEDTLS_HMAC_DRBG_MAX_INPUT || + ctx->entropy_len + len > MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT ) + { + return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG ); + } + + memset( seed, 0, MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT ); + + /* IV. Gather entropy_len bytes of entropy for the seed */ + if( ctx->f_entropy( ctx->p_entropy, seed, ctx->entropy_len ) != 0 ) + return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED ); + + seedlen = ctx->entropy_len; + + /* 1. Concatenate entropy and additional data if any */ + if( additional != NULL && len != 0 ) + { + memcpy( seed + seedlen, additional, len ); + seedlen += len; + } + + /* 2. Update state */ + mbedtls_hmac_drbg_update( ctx, seed, seedlen ); + + /* 3. Reset reseed_counter */ + ctx->reseed_counter = 1; + + /* 4. Done */ + return( 0 ); +} + +/* + * HMAC_DRBG initialisation (10.1.2.3 + 9.1) + */ +int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *ctx, + const mbedtls_md_info_t * md_info, + int (*f_entropy)(void *, unsigned char *, size_t), + void *p_entropy, + const unsigned char *custom, + size_t len ) +{ + int ret; + size_t entropy_len, md_size; + + if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 ) + return( ret ); + + md_size = mbedtls_md_get_size( md_info ); + + /* + * Set initial working state. + * Use the V memory location, which is currently all 0, to initialize the + * MD context with an all-zero key. Then set V to its initial value. + */ + mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, md_size ); + memset( ctx->V, 0x01, md_size ); + + ctx->f_entropy = f_entropy; + ctx->p_entropy = p_entropy; + + ctx->reseed_interval = MBEDTLS_HMAC_DRBG_RESEED_INTERVAL; + + /* + * See SP800-57 5.6.1 (p. 65-66) for the security strength provided by + * each hash function, then according to SP800-90A rev1 10.1 table 2, + * min_entropy_len (in bits) is security_strength. + * + * (This also matches the sizes used in the NIST test vectors.) + */ + entropy_len = md_size <= 20 ? 16 : /* 160-bits hash -> 128 bits */ + md_size <= 28 ? 24 : /* 224-bits hash -> 192 bits */ + 32; /* better (256+) -> 256 bits */ + + /* + * For initialisation, use more entropy to emulate a nonce + * (Again, matches test vectors.) + */ + ctx->entropy_len = entropy_len * 3 / 2; + + if( ( ret = mbedtls_hmac_drbg_reseed( ctx, custom, len ) ) != 0 ) + return( ret ); + + ctx->entropy_len = entropy_len; + + return( 0 ); +} + +/* + * Set prediction resistance + */ +void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx, + int resistance ) +{ + ctx->prediction_resistance = resistance; +} + +/* + * Set entropy length grabbed for reseeds + */ +void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx, size_t len ) +{ + ctx->entropy_len = len; +} + +/* + * Set reseed interval + */ +void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx, int interval ) +{ + ctx->reseed_interval = interval; +} + +/* + * HMAC_DRBG random function with optional additional data: + * 10.1.2.5 (arabic) + 9.3 (Roman) + */ +int mbedtls_hmac_drbg_random_with_add( void *p_rng, + unsigned char *output, size_t out_len, + const unsigned char *additional, size_t add_len ) +{ + int ret; + mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng; + size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info ); + size_t left = out_len; + unsigned char *out = output; + + /* II. Check request length */ + if( out_len > MBEDTLS_HMAC_DRBG_MAX_REQUEST ) + return( MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG ); + + /* III. Check input length */ + if( add_len > MBEDTLS_HMAC_DRBG_MAX_INPUT ) + return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG ); + + /* 1. (aka VII and IX) Check reseed counter and PR */ + if( ctx->f_entropy != NULL && /* For no-reseeding instances */ + ( ctx->prediction_resistance == MBEDTLS_HMAC_DRBG_PR_ON || + ctx->reseed_counter > ctx->reseed_interval ) ) + { + if( ( ret = mbedtls_hmac_drbg_reseed( ctx, additional, add_len ) ) != 0 ) + return( ret ); + + add_len = 0; /* VII.4 */ + } + + /* 2. Use additional data if any */ + if( additional != NULL && add_len != 0 ) + mbedtls_hmac_drbg_update( ctx, additional, add_len ); + + /* 3, 4, 5. Generate bytes */ + while( left != 0 ) + { + size_t use_len = left > md_len ? md_len : left; + + mbedtls_md_hmac_reset( &ctx->md_ctx ); + mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len ); + mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ); + + memcpy( out, ctx->V, use_len ); + out += use_len; + left -= use_len; + } + + /* 6. Update */ + mbedtls_hmac_drbg_update( ctx, additional, add_len ); + + /* 7. Update reseed counter */ + ctx->reseed_counter++; + + /* 8. Done */ + return( 0 ); +} + +/* + * HMAC_DRBG random function + */ +int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len ) +{ + int ret; + mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng; + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + ret = mbedtls_hmac_drbg_random_with_add( ctx, output, out_len, NULL, 0 ); + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +/* + * Free an HMAC_DRBG context + */ +void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx ) +{ + if( ctx == NULL ) + return; + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &ctx->mutex ); +#endif + mbedtls_md_free( &ctx->md_ctx ); + mbedtls_zeroize( ctx, sizeof( mbedtls_hmac_drbg_context ) ); +} + +#if defined(MBEDTLS_FS_IO) +int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path ) +{ + int ret; + FILE *f; + unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ]; + + if( ( f = fopen( path, "wb" ) ) == NULL ) + return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR ); + + if( ( ret = mbedtls_hmac_drbg_random( ctx, buf, sizeof( buf ) ) ) != 0 ) + goto exit; + + if( fwrite( buf, 1, sizeof( buf ), f ) != sizeof( buf ) ) + { + ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR; + goto exit; + } + + ret = 0; + +exit: + fclose( f ); + return( ret ); +} + +int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path ) +{ + FILE *f; + size_t n; + unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ]; + + if( ( f = fopen( path, "rb" ) ) == NULL ) + return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR ); + + fseek( f, 0, SEEK_END ); + n = (size_t) ftell( f ); + fseek( f, 0, SEEK_SET ); + + if( n > MBEDTLS_HMAC_DRBG_MAX_INPUT ) + { + fclose( f ); + return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG ); + } + + if( fread( buf, 1, n, f ) != n ) + { + fclose( f ); + return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR ); + } + + fclose( f ); + + mbedtls_hmac_drbg_update( ctx, buf, n ); + + return( mbedtls_hmac_drbg_write_seed_file( ctx, path ) ); +} +#endif /* MBEDTLS_FS_IO */ + + +#if defined(MBEDTLS_SELF_TEST) + +#if !defined(MBEDTLS_SHA1_C) +/* Dummy checkup routine */ +int mbedtls_hmac_drbg_self_test( int verbose ) +{ + (void) verbose; + return( 0 ); +} +#else + +#define OUTPUT_LEN 80 + +/* From a NIST PR=true test vector */ +static const unsigned char entropy_pr[] = { + 0xa0, 0xc9, 0xab, 0x58, 0xf1, 0xe2, 0xe5, 0xa4, 0xde, 0x3e, 0xbd, 0x4f, + 0xf7, 0x3e, 0x9c, 0x5b, 0x64, 0xef, 0xd8, 0xca, 0x02, 0x8c, 0xf8, 0x11, + 0x48, 0xa5, 0x84, 0xfe, 0x69, 0xab, 0x5a, 0xee, 0x42, 0xaa, 0x4d, 0x42, + 0x17, 0x60, 0x99, 0xd4, 0x5e, 0x13, 0x97, 0xdc, 0x40, 0x4d, 0x86, 0xa3, + 0x7b, 0xf5, 0x59, 0x54, 0x75, 0x69, 0x51, 0xe4 }; +static const unsigned char result_pr[OUTPUT_LEN] = { + 0x9a, 0x00, 0xa2, 0xd0, 0x0e, 0xd5, 0x9b, 0xfe, 0x31, 0xec, 0xb1, 0x39, + 0x9b, 0x60, 0x81, 0x48, 0xd1, 0x96, 0x9d, 0x25, 0x0d, 0x3c, 0x1e, 0x94, + 0x10, 0x10, 0x98, 0x12, 0x93, 0x25, 0xca, 0xb8, 0xfc, 0xcc, 0x2d, 0x54, + 0x73, 0x19, 0x70, 0xc0, 0x10, 0x7a, 0xa4, 0x89, 0x25, 0x19, 0x95, 0x5e, + 0x4b, 0xc6, 0x00, 0x1d, 0x7f, 0x4e, 0x6a, 0x2b, 0xf8, 0xa3, 0x01, 0xab, + 0x46, 0x05, 0x5c, 0x09, 0xa6, 0x71, 0x88, 0xf1, 0xa7, 0x40, 0xee, 0xf3, + 0xe1, 0x5c, 0x02, 0x9b, 0x44, 0xaf, 0x03, 0x44 }; + +/* From a NIST PR=false test vector */ +static const unsigned char entropy_nopr[] = { + 0x79, 0x34, 0x9b, 0xbf, 0x7c, 0xdd, 0xa5, 0x79, 0x95, 0x57, 0x86, 0x66, + 0x21, 0xc9, 0x13, 0x83, 0x11, 0x46, 0x73, 0x3a, 0xbf, 0x8c, 0x35, 0xc8, + 0xc7, 0x21, 0x5b, 0x5b, 0x96, 0xc4, 0x8e, 0x9b, 0x33, 0x8c, 0x74, 0xe3, + 0xe9, 0x9d, 0xfe, 0xdf }; +static const unsigned char result_nopr[OUTPUT_LEN] = { + 0xc6, 0xa1, 0x6a, 0xb8, 0xd4, 0x20, 0x70, 0x6f, 0x0f, 0x34, 0xab, 0x7f, + 0xec, 0x5a, 0xdc, 0xa9, 0xd8, 0xca, 0x3a, 0x13, 0x3e, 0x15, 0x9c, 0xa6, + 0xac, 0x43, 0xc6, 0xf8, 0xa2, 0xbe, 0x22, 0x83, 0x4a, 0x4c, 0x0a, 0x0a, + 0xff, 0xb1, 0x0d, 0x71, 0x94, 0xf1, 0xc1, 0xa5, 0xcf, 0x73, 0x22, 0xec, + 0x1a, 0xe0, 0x96, 0x4e, 0xd4, 0xbf, 0x12, 0x27, 0x46, 0xe0, 0x87, 0xfd, + 0xb5, 0xb3, 0xe9, 0x1b, 0x34, 0x93, 0xd5, 0xbb, 0x98, 0xfa, 0xed, 0x49, + 0xe8, 0x5f, 0x13, 0x0f, 0xc8, 0xa4, 0x59, 0xb7 }; + +/* "Entropy" from buffer */ +static size_t test_offset; +static int hmac_drbg_self_test_entropy( void *data, + unsigned char *buf, size_t len ) +{ + const unsigned char *p = data; + memcpy( buf, p + test_offset, len ); + test_offset += len; + return( 0 ); +} + +#define CHK( c ) if( (c) != 0 ) \ + { \ + if( verbose != 0 ) \ + mbedtls_printf( "failed\n" ); \ + return( 1 ); \ + } + +/* + * Checkup routine for HMAC_DRBG with SHA-1 + */ +int mbedtls_hmac_drbg_self_test( int verbose ) +{ + mbedtls_hmac_drbg_context ctx; + unsigned char buf[OUTPUT_LEN]; + const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ); + + mbedtls_hmac_drbg_init( &ctx ); + + /* + * PR = True + */ + if( verbose != 0 ) + mbedtls_printf( " HMAC_DRBG (PR = True) : " ); + + test_offset = 0; + CHK( mbedtls_hmac_drbg_seed( &ctx, md_info, + hmac_drbg_self_test_entropy, (void *) entropy_pr, + NULL, 0 ) ); + mbedtls_hmac_drbg_set_prediction_resistance( &ctx, MBEDTLS_HMAC_DRBG_PR_ON ); + CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); + CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); + CHK( memcmp( buf, result_pr, OUTPUT_LEN ) ); + mbedtls_hmac_drbg_free( &ctx ); + + mbedtls_hmac_drbg_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + /* + * PR = False + */ + if( verbose != 0 ) + mbedtls_printf( " HMAC_DRBG (PR = False) : " ); + + mbedtls_hmac_drbg_init( &ctx ); + + test_offset = 0; + CHK( mbedtls_hmac_drbg_seed( &ctx, md_info, + hmac_drbg_self_test_entropy, (void *) entropy_nopr, + NULL, 0 ) ); + CHK( mbedtls_hmac_drbg_reseed( &ctx, NULL, 0 ) ); + CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); + CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); + CHK( memcmp( buf, result_nopr, OUTPUT_LEN ) ); + mbedtls_hmac_drbg_free( &ctx ); + + mbedtls_hmac_drbg_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_HMAC_DRBG_C */ diff --git a/mbedtls/md.c b/mbedtls/md.c new file mode 100644 index 0000000..eda98f6 --- /dev/null +++ b/mbedtls/md.c @@ -0,0 +1,471 @@ +/** + * \file mbedtls_md.c + * + * \brief Generic message digest wrapper for mbed TLS + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_MD_C) + +#include "mbedtls/md.h" +#include "mbedtls/md_internal.h" + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include + +#if defined(MBEDTLS_FS_IO) +#include +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Reminder: update profiles in x509_crt.c when adding a new hash! + */ +static const int supported_digests[] = { + +#if defined(MBEDTLS_SHA512_C) + MBEDTLS_MD_SHA512, + MBEDTLS_MD_SHA384, +#endif + +#if defined(MBEDTLS_SHA256_C) + MBEDTLS_MD_SHA256, + MBEDTLS_MD_SHA224, +#endif + +#if defined(MBEDTLS_SHA1_C) + MBEDTLS_MD_SHA1, +#endif + +#if defined(MBEDTLS_RIPEMD160_C) + MBEDTLS_MD_RIPEMD160, +#endif + +#if defined(MBEDTLS_MD5_C) + MBEDTLS_MD_MD5, +#endif + +#if defined(MBEDTLS_MD4_C) + MBEDTLS_MD_MD4, +#endif + +#if defined(MBEDTLS_MD2_C) + MBEDTLS_MD_MD2, +#endif + + MBEDTLS_MD_NONE +}; + +const int *mbedtls_md_list( void ) +{ + return( supported_digests ); +} + +const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name ) +{ + if( NULL == md_name ) + return( NULL ); + + /* Get the appropriate digest information */ +#if defined(MBEDTLS_MD2_C) + if( !strcmp( "MD2", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_MD2 ); +#endif +#if defined(MBEDTLS_MD4_C) + if( !strcmp( "MD4", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_MD4 ); +#endif +#if defined(MBEDTLS_MD5_C) + if( !strcmp( "MD5", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ); +#endif +#if defined(MBEDTLS_RIPEMD160_C) + if( !strcmp( "RIPEMD160", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_RIPEMD160 ); +#endif +#if defined(MBEDTLS_SHA1_C) + if( !strcmp( "SHA1", md_name ) || !strcmp( "SHA", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ); +#endif +#if defined(MBEDTLS_SHA256_C) + if( !strcmp( "SHA224", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_SHA224 ); + if( !strcmp( "SHA256", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ); +#endif +#if defined(MBEDTLS_SHA512_C) + if( !strcmp( "SHA384", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_SHA384 ); + if( !strcmp( "SHA512", md_name ) ) + return mbedtls_md_info_from_type( MBEDTLS_MD_SHA512 ); +#endif + return( NULL ); +} + +const mbedtls_md_info_t *mbedtls_md_info_from_type( mbedtls_md_type_t md_type ) +{ + switch( md_type ) + { +#if defined(MBEDTLS_MD2_C) + case MBEDTLS_MD_MD2: + return( &mbedtls_md2_info ); +#endif +#if defined(MBEDTLS_MD4_C) + case MBEDTLS_MD_MD4: + return( &mbedtls_md4_info ); +#endif +#if defined(MBEDTLS_MD5_C) + case MBEDTLS_MD_MD5: + return( &mbedtls_md5_info ); +#endif +#if defined(MBEDTLS_RIPEMD160_C) + case MBEDTLS_MD_RIPEMD160: + return( &mbedtls_ripemd160_info ); +#endif +#if defined(MBEDTLS_SHA1_C) + case MBEDTLS_MD_SHA1: + return( &mbedtls_sha1_info ); +#endif +#if defined(MBEDTLS_SHA256_C) + case MBEDTLS_MD_SHA224: + return( &mbedtls_sha224_info ); + case MBEDTLS_MD_SHA256: + return( &mbedtls_sha256_info ); +#endif +#if defined(MBEDTLS_SHA512_C) + case MBEDTLS_MD_SHA384: + return( &mbedtls_sha384_info ); + case MBEDTLS_MD_SHA512: + return( &mbedtls_sha512_info ); +#endif + default: + return( NULL ); + } +} + +void mbedtls_md_init( mbedtls_md_context_t *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_md_context_t ) ); +} + +void mbedtls_md_free( mbedtls_md_context_t *ctx ) +{ + if( ctx == NULL || ctx->md_info == NULL ) + return; + + if( ctx->md_ctx != NULL ) + ctx->md_info->ctx_free_func( ctx->md_ctx ); + + if( ctx->hmac_ctx != NULL ) + { + mbedtls_zeroize( ctx->hmac_ctx, 2 * ctx->md_info->block_size ); + mbedtls_free( ctx->hmac_ctx ); + } + + mbedtls_zeroize( ctx, sizeof( mbedtls_md_context_t ) ); +} + +int mbedtls_md_clone( mbedtls_md_context_t *dst, + const mbedtls_md_context_t *src ) +{ + if( dst == NULL || dst->md_info == NULL || + src == NULL || src->md_info == NULL || + dst->md_info != src->md_info ) + { + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + } + + dst->md_info->clone_func( dst->md_ctx, src->md_ctx ); + + return( 0 ); +} + +#if ! defined(MBEDTLS_DEPRECATED_REMOVED) +int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info ) +{ + return mbedtls_md_setup( ctx, md_info, 1 ); +} +#endif + +int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac ) +{ + if( md_info == NULL || ctx == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL ) + return( MBEDTLS_ERR_MD_ALLOC_FAILED ); + + if( hmac != 0 ) + { + ctx->hmac_ctx = mbedtls_calloc( 2, md_info->block_size ); + if( ctx->hmac_ctx == NULL ) + { + md_info->ctx_free_func( ctx->md_ctx ); + return( MBEDTLS_ERR_MD_ALLOC_FAILED ); + } + } + + ctx->md_info = md_info; + + return( 0 ); +} + +int mbedtls_md_starts( mbedtls_md_context_t *ctx ) +{ + if( ctx == NULL || ctx->md_info == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + ctx->md_info->starts_func( ctx->md_ctx ); + + return( 0 ); +} + +int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen ) +{ + if( ctx == NULL || ctx->md_info == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + ctx->md_info->update_func( ctx->md_ctx, input, ilen ); + + return( 0 ); +} + +int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output ) +{ + if( ctx == NULL || ctx->md_info == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + ctx->md_info->finish_func( ctx->md_ctx, output ); + + return( 0 ); +} + +int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen, + unsigned char *output ) +{ + if( md_info == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + md_info->digest_func( input, ilen, output ); + + return( 0 ); +} + +#if defined(MBEDTLS_FS_IO) +int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output ) +{ + int ret; + FILE *f; + size_t n; + mbedtls_md_context_t ctx; + unsigned char buf[1024]; + + if( md_info == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + if( ( f = fopen( path, "rb" ) ) == NULL ) + return( MBEDTLS_ERR_MD_FILE_IO_ERROR ); + + mbedtls_md_init( &ctx ); + + if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 ) + goto cleanup; + + md_info->starts_func( ctx.md_ctx ); + + while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) + md_info->update_func( ctx.md_ctx, buf, n ); + + if( ferror( f ) != 0 ) + { + ret = MBEDTLS_ERR_MD_FILE_IO_ERROR; + goto cleanup; + } + + md_info->finish_func( ctx.md_ctx, output ); + +cleanup: + fclose( f ); + mbedtls_md_free( &ctx ); + + return( ret ); +} +#endif /* MBEDTLS_FS_IO */ + +int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen ) +{ + unsigned char sum[MBEDTLS_MD_MAX_SIZE]; + unsigned char *ipad, *opad; + size_t i; + + if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + if( keylen > (size_t) ctx->md_info->block_size ) + { + ctx->md_info->starts_func( ctx->md_ctx ); + ctx->md_info->update_func( ctx->md_ctx, key, keylen ); + ctx->md_info->finish_func( ctx->md_ctx, sum ); + + keylen = ctx->md_info->size; + key = sum; + } + + ipad = (unsigned char *) ctx->hmac_ctx; + opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size; + + memset( ipad, 0x36, ctx->md_info->block_size ); + memset( opad, 0x5C, ctx->md_info->block_size ); + + for( i = 0; i < keylen; i++ ) + { + ipad[i] = (unsigned char)( ipad[i] ^ key[i] ); + opad[i] = (unsigned char)( opad[i] ^ key[i] ); + } + + mbedtls_zeroize( sum, sizeof( sum ) ); + + ctx->md_info->starts_func( ctx->md_ctx ); + ctx->md_info->update_func( ctx->md_ctx, ipad, ctx->md_info->block_size ); + + return( 0 ); +} + +int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen ) +{ + if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + ctx->md_info->update_func( ctx->md_ctx, input, ilen ); + + return( 0 ); +} + +int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output ) +{ + unsigned char tmp[MBEDTLS_MD_MAX_SIZE]; + unsigned char *opad; + + if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size; + + ctx->md_info->finish_func( ctx->md_ctx, tmp ); + ctx->md_info->starts_func( ctx->md_ctx ); + ctx->md_info->update_func( ctx->md_ctx, opad, ctx->md_info->block_size ); + ctx->md_info->update_func( ctx->md_ctx, tmp, ctx->md_info->size ); + ctx->md_info->finish_func( ctx->md_ctx, output ); + + return( 0 ); +} + +int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx ) +{ + unsigned char *ipad; + + if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + ipad = (unsigned char *) ctx->hmac_ctx; + + ctx->md_info->starts_func( ctx->md_ctx ); + ctx->md_info->update_func( ctx->md_ctx, ipad, ctx->md_info->block_size ); + + return( 0 ); +} + +int mbedtls_md_hmac( const mbedtls_md_info_t *md_info, const unsigned char *key, size_t keylen, + const unsigned char *input, size_t ilen, + unsigned char *output ) +{ + mbedtls_md_context_t ctx; + int ret; + + if( md_info == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + mbedtls_md_init( &ctx ); + + if( ( ret = mbedtls_md_setup( &ctx, md_info, 1 ) ) != 0 ) + return( ret ); + + mbedtls_md_hmac_starts( &ctx, key, keylen ); + mbedtls_md_hmac_update( &ctx, input, ilen ); + mbedtls_md_hmac_finish( &ctx, output ); + + mbedtls_md_free( &ctx ); + + return( 0 ); +} + +int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data ) +{ + if( ctx == NULL || ctx->md_info == NULL ) + return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + + ctx->md_info->process_func( ctx->md_ctx, data ); + + return( 0 ); +} + +unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info ) +{ + if( md_info == NULL ) + return( 0 ); + + return md_info->size; +} + +mbedtls_md_type_t mbedtls_md_get_type( const mbedtls_md_info_t *md_info ) +{ + if( md_info == NULL ) + return( MBEDTLS_MD_NONE ); + + return md_info->type; +} + +const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info ) +{ + if( md_info == NULL ) + return( NULL ); + + return md_info->name; +} + +#endif /* MBEDTLS_MD_C */ diff --git a/mbedtls/md2.c b/mbedtls/md2.c new file mode 100644 index 0000000..8976701 --- /dev/null +++ b/mbedtls/md2.c @@ -0,0 +1,288 @@ +/* + * RFC 1115/1319 compliant MD2 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The MD2 algorithm was designed by Ron Rivest in 1989. + * + * http://www.ietf.org/rfc/rfc1115.txt + * http://www.ietf.org/rfc/rfc1319.txt + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_MD2_C) + +#include "mbedtls/md2.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_MD2_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +static const unsigned char PI_SUBST[256] = +{ + 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, + 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3, + 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, + 0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, + 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E, + 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E, + 0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, + 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, + 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E, + 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3, + 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, + 0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, + 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D, + 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65, + 0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, + 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, + 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C, + 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E, + 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, + 0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, + 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88, + 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE, + 0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, + 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, + 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, + 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14 +}; + +void mbedtls_md2_init( mbedtls_md2_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_md2_context ) ); +} + +void mbedtls_md2_free( mbedtls_md2_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_md2_context ) ); +} + +void mbedtls_md2_clone( mbedtls_md2_context *dst, + const mbedtls_md2_context *src ) +{ + *dst = *src; +} + +/* + * MD2 context setup + */ +void mbedtls_md2_starts( mbedtls_md2_context *ctx ) +{ + memset( ctx->cksum, 0, 16 ); + memset( ctx->state, 0, 46 ); + memset( ctx->buffer, 0, 16 ); + ctx->left = 0; +} + +#if !defined(MBEDTLS_MD2_PROCESS_ALT) +void mbedtls_md2_process( mbedtls_md2_context *ctx ) +{ + int i, j; + unsigned char t = 0; + + for( i = 0; i < 16; i++ ) + { + ctx->state[i + 16] = ctx->buffer[i]; + ctx->state[i + 32] = + (unsigned char)( ctx->buffer[i] ^ ctx->state[i]); + } + + for( i = 0; i < 18; i++ ) + { + for( j = 0; j < 48; j++ ) + { + ctx->state[j] = (unsigned char) + ( ctx->state[j] ^ PI_SUBST[t] ); + t = ctx->state[j]; + } + + t = (unsigned char)( t + i ); + } + + t = ctx->cksum[15]; + + for( i = 0; i < 16; i++ ) + { + ctx->cksum[i] = (unsigned char) + ( ctx->cksum[i] ^ PI_SUBST[ctx->buffer[i] ^ t] ); + t = ctx->cksum[i]; + } +} +#endif /* !MBEDTLS_MD2_PROCESS_ALT */ + +/* + * MD2 process buffer + */ +void mbedtls_md2_update( mbedtls_md2_context *ctx, const unsigned char *input, size_t ilen ) +{ + size_t fill; + + while( ilen > 0 ) + { + if( ctx->left + ilen > 16 ) + fill = 16 - ctx->left; + else + fill = ilen; + + memcpy( ctx->buffer + ctx->left, input, fill ); + + ctx->left += fill; + input += fill; + ilen -= fill; + + if( ctx->left == 16 ) + { + ctx->left = 0; + mbedtls_md2_process( ctx ); + } + } +} + +/* + * MD2 final digest + */ +void mbedtls_md2_finish( mbedtls_md2_context *ctx, unsigned char output[16] ) +{ + size_t i; + unsigned char x; + + x = (unsigned char)( 16 - ctx->left ); + + for( i = ctx->left; i < 16; i++ ) + ctx->buffer[i] = x; + + mbedtls_md2_process( ctx ); + + memcpy( ctx->buffer, ctx->cksum, 16 ); + mbedtls_md2_process( ctx ); + + memcpy( output, ctx->state, 16 ); +} + +#endif /* !MBEDTLS_MD2_ALT */ + +/* + * output = MD2( input buffer ) + */ +void mbedtls_md2( const unsigned char *input, size_t ilen, unsigned char output[16] ) +{ + mbedtls_md2_context ctx; + + mbedtls_md2_init( &ctx ); + mbedtls_md2_starts( &ctx ); + mbedtls_md2_update( &ctx, input, ilen ); + mbedtls_md2_finish( &ctx, output ); + mbedtls_md2_free( &ctx ); +} + +#if defined(MBEDTLS_SELF_TEST) + +/* + * RFC 1319 test vectors + */ +static const char md2_test_str[7][81] = +{ + { "" }, + { "a" }, + { "abc" }, + { "message digest" }, + { "abcdefghijklmnopqrstuvwxyz" }, + { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, + { "12345678901234567890123456789012345678901234567890123456789012" \ + "345678901234567890" } +}; + +static const unsigned char md2_test_sum[7][16] = +{ + { 0x83, 0x50, 0xE5, 0xA3, 0xE2, 0x4C, 0x15, 0x3D, + 0xF2, 0x27, 0x5C, 0x9F, 0x80, 0x69, 0x27, 0x73 }, + { 0x32, 0xEC, 0x01, 0xEC, 0x4A, 0x6D, 0xAC, 0x72, + 0xC0, 0xAB, 0x96, 0xFB, 0x34, 0xC0, 0xB5, 0xD1 }, + { 0xDA, 0x85, 0x3B, 0x0D, 0x3F, 0x88, 0xD9, 0x9B, + 0x30, 0x28, 0x3A, 0x69, 0xE6, 0xDE, 0xD6, 0xBB }, + { 0xAB, 0x4F, 0x49, 0x6B, 0xFB, 0x2A, 0x53, 0x0B, + 0x21, 0x9F, 0xF3, 0x30, 0x31, 0xFE, 0x06, 0xB0 }, + { 0x4E, 0x8D, 0xDF, 0xF3, 0x65, 0x02, 0x92, 0xAB, + 0x5A, 0x41, 0x08, 0xC3, 0xAA, 0x47, 0x94, 0x0B }, + { 0xDA, 0x33, 0xDE, 0xF2, 0xA4, 0x2D, 0xF1, 0x39, + 0x75, 0x35, 0x28, 0x46, 0xC3, 0x03, 0x38, 0xCD }, + { 0xD5, 0x97, 0x6F, 0x79, 0xD8, 0x3D, 0x3A, 0x0D, + 0xC9, 0x80, 0x6C, 0x3C, 0x66, 0xF3, 0xEF, 0xD8 } +}; + +/* + * Checkup routine + */ +int mbedtls_md2_self_test( int verbose ) +{ + int i; + unsigned char md2sum[16]; + + for( i = 0; i < 7; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " MD2 test #%d: ", i + 1 ); + + mbedtls_md2( (unsigned char *) md2_test_str[i], + strlen( md2_test_str[i] ), md2sum ); + + if( memcmp( md2sum, md2_test_sum[i], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_MD2_C */ diff --git a/mbedtls/md4.c b/mbedtls/md4.c new file mode 100644 index 0000000..11a77e3 --- /dev/null +++ b/mbedtls/md4.c @@ -0,0 +1,384 @@ +/* + * RFC 1186/1320 compliant MD4 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The MD4 algorithm was designed by Ron Rivest in 1990. + * + * http://www.ietf.org/rfc/rfc1186.txt + * http://www.ietf.org/rfc/rfc1320.txt + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_MD4_C) + +#include "mbedtls/md4.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_MD4_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (little endian) + */ +#ifndef GET_UINT32_LE +#define GET_UINT32_LE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] ) \ + | ( (uint32_t) (b)[(i) + 1] << 8 ) \ + | ( (uint32_t) (b)[(i) + 2] << 16 ) \ + | ( (uint32_t) (b)[(i) + 3] << 24 ); \ +} +#endif + +#ifndef PUT_UINT32_LE +#define PUT_UINT32_LE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \ + (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \ + (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \ + (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \ +} +#endif + +void mbedtls_md4_init( mbedtls_md4_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_md4_context ) ); +} + +void mbedtls_md4_free( mbedtls_md4_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_md4_context ) ); +} + +void mbedtls_md4_clone( mbedtls_md4_context *dst, + const mbedtls_md4_context *src ) +{ + *dst = *src; +} + +/* + * MD4 context setup + */ +void mbedtls_md4_starts( mbedtls_md4_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; +} + +#if !defined(MBEDTLS_MD4_PROCESS_ALT) +void mbedtls_md4_process( mbedtls_md4_context *ctx, const unsigned char data[64] ) +{ + uint32_t X[16], A, B, C, D; + + GET_UINT32_LE( X[ 0], data, 0 ); + GET_UINT32_LE( X[ 1], data, 4 ); + GET_UINT32_LE( X[ 2], data, 8 ); + GET_UINT32_LE( X[ 3], data, 12 ); + GET_UINT32_LE( X[ 4], data, 16 ); + GET_UINT32_LE( X[ 5], data, 20 ); + GET_UINT32_LE( X[ 6], data, 24 ); + GET_UINT32_LE( X[ 7], data, 28 ); + GET_UINT32_LE( X[ 8], data, 32 ); + GET_UINT32_LE( X[ 9], data, 36 ); + GET_UINT32_LE( X[10], data, 40 ); + GET_UINT32_LE( X[11], data, 44 ); + GET_UINT32_LE( X[12], data, 48 ); + GET_UINT32_LE( X[13], data, 52 ); + GET_UINT32_LE( X[14], data, 56 ); + GET_UINT32_LE( X[15], data, 60 ); + +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + +#define F(x, y, z) ((x & y) | ((~x) & z)) +#define P(a,b,c,d,x,s) { a += F(b,c,d) + x; a = S(a,s); } + + P( A, B, C, D, X[ 0], 3 ); + P( D, A, B, C, X[ 1], 7 ); + P( C, D, A, B, X[ 2], 11 ); + P( B, C, D, A, X[ 3], 19 ); + P( A, B, C, D, X[ 4], 3 ); + P( D, A, B, C, X[ 5], 7 ); + P( C, D, A, B, X[ 6], 11 ); + P( B, C, D, A, X[ 7], 19 ); + P( A, B, C, D, X[ 8], 3 ); + P( D, A, B, C, X[ 9], 7 ); + P( C, D, A, B, X[10], 11 ); + P( B, C, D, A, X[11], 19 ); + P( A, B, C, D, X[12], 3 ); + P( D, A, B, C, X[13], 7 ); + P( C, D, A, B, X[14], 11 ); + P( B, C, D, A, X[15], 19 ); + +#undef P +#undef F + +#define F(x,y,z) ((x & y) | (x & z) | (y & z)) +#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x5A827999; a = S(a,s); } + + P( A, B, C, D, X[ 0], 3 ); + P( D, A, B, C, X[ 4], 5 ); + P( C, D, A, B, X[ 8], 9 ); + P( B, C, D, A, X[12], 13 ); + P( A, B, C, D, X[ 1], 3 ); + P( D, A, B, C, X[ 5], 5 ); + P( C, D, A, B, X[ 9], 9 ); + P( B, C, D, A, X[13], 13 ); + P( A, B, C, D, X[ 2], 3 ); + P( D, A, B, C, X[ 6], 5 ); + P( C, D, A, B, X[10], 9 ); + P( B, C, D, A, X[14], 13 ); + P( A, B, C, D, X[ 3], 3 ); + P( D, A, B, C, X[ 7], 5 ); + P( C, D, A, B, X[11], 9 ); + P( B, C, D, A, X[15], 13 ); + +#undef P +#undef F + +#define F(x,y,z) (x ^ y ^ z) +#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x6ED9EBA1; a = S(a,s); } + + P( A, B, C, D, X[ 0], 3 ); + P( D, A, B, C, X[ 8], 9 ); + P( C, D, A, B, X[ 4], 11 ); + P( B, C, D, A, X[12], 15 ); + P( A, B, C, D, X[ 2], 3 ); + P( D, A, B, C, X[10], 9 ); + P( C, D, A, B, X[ 6], 11 ); + P( B, C, D, A, X[14], 15 ); + P( A, B, C, D, X[ 1], 3 ); + P( D, A, B, C, X[ 9], 9 ); + P( C, D, A, B, X[ 5], 11 ); + P( B, C, D, A, X[13], 15 ); + P( A, B, C, D, X[ 3], 3 ); + P( D, A, B, C, X[11], 9 ); + P( C, D, A, B, X[ 7], 11 ); + P( B, C, D, A, X[15], 15 ); + +#undef F +#undef P + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; +} +#endif /* !MBEDTLS_MD4_PROCESS_ALT */ + +/* + * MD4 process buffer + */ +void mbedtls_md4_update( mbedtls_md4_context *ctx, const unsigned char *input, size_t ilen ) +{ + size_t fill; + uint32_t left; + + if( ilen == 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += (uint32_t) ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (uint32_t) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + memcpy( (void *) (ctx->buffer + left), + (void *) input, fill ); + mbedtls_md4_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + mbedtls_md4_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + { + memcpy( (void *) (ctx->buffer + left), + (void *) input, ilen ); + } +} + +static const unsigned char md4_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * MD4 final digest + */ +void mbedtls_md4_finish( mbedtls_md4_context *ctx, unsigned char output[16] ) +{ + uint32_t last, padn; + uint32_t high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_UINT32_LE( low, msglen, 0 ); + PUT_UINT32_LE( high, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + mbedtls_md4_update( ctx, (unsigned char *) md4_padding, padn ); + mbedtls_md4_update( ctx, msglen, 8 ); + + PUT_UINT32_LE( ctx->state[0], output, 0 ); + PUT_UINT32_LE( ctx->state[1], output, 4 ); + PUT_UINT32_LE( ctx->state[2], output, 8 ); + PUT_UINT32_LE( ctx->state[3], output, 12 ); +} + +#endif /* !MBEDTLS_MD4_ALT */ + +/* + * output = MD4( input buffer ) + */ +void mbedtls_md4( const unsigned char *input, size_t ilen, unsigned char output[16] ) +{ + mbedtls_md4_context ctx; + + mbedtls_md4_init( &ctx ); + mbedtls_md4_starts( &ctx ); + mbedtls_md4_update( &ctx, input, ilen ); + mbedtls_md4_finish( &ctx, output ); + mbedtls_md4_free( &ctx ); +} + +#if defined(MBEDTLS_SELF_TEST) + +/* + * RFC 1320 test vectors + */ +static const char md4_test_str[7][81] = +{ + { "" }, + { "a" }, + { "abc" }, + { "message digest" }, + { "abcdefghijklmnopqrstuvwxyz" }, + { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, + { "12345678901234567890123456789012345678901234567890123456789012" \ + "345678901234567890" } +}; + +static const unsigned char md4_test_sum[7][16] = +{ + { 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31, + 0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 }, + { 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46, + 0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 }, + { 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52, + 0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D }, + { 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8, + 0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B }, + { 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD, + 0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 }, + { 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35, + 0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 }, + { 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19, + 0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 } +}; + +/* + * Checkup routine + */ +int mbedtls_md4_self_test( int verbose ) +{ + int i; + unsigned char md4sum[16]; + + for( i = 0; i < 7; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " MD4 test #%d: ", i + 1 ); + + mbedtls_md4( (unsigned char *) md4_test_str[i], + strlen( md4_test_str[i] ), md4sum ); + + if( memcmp( md4sum, md4_test_sum[i], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_MD4_C */ diff --git a/mbedtls/md5.c b/mbedtls/md5.c new file mode 100644 index 0000000..5d972dc --- /dev/null +++ b/mbedtls/md5.c @@ -0,0 +1,404 @@ +/* + * RFC 1321 compliant MD5 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The MD5 algorithm was designed by Ron Rivest in 1991. + * + * http://www.ietf.org/rfc/rfc1321.txt + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_MD5_C) + +#include "mbedtls/md5.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_MD5_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (little endian) + */ +#ifndef GET_UINT32_LE +#define GET_UINT32_LE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] ) \ + | ( (uint32_t) (b)[(i) + 1] << 8 ) \ + | ( (uint32_t) (b)[(i) + 2] << 16 ) \ + | ( (uint32_t) (b)[(i) + 3] << 24 ); \ +} +#endif + +#ifndef PUT_UINT32_LE +#define PUT_UINT32_LE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \ + (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \ + (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \ + (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \ +} +#endif + +void mbedtls_md5_init( mbedtls_md5_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_md5_context ) ); +} + +void mbedtls_md5_free( mbedtls_md5_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_md5_context ) ); +} + +void mbedtls_md5_clone( mbedtls_md5_context *dst, + const mbedtls_md5_context *src ) +{ + *dst = *src; +} + +/* + * MD5 context setup + */ +void mbedtls_md5_starts( mbedtls_md5_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; +} + +#if !defined(MBEDTLS_MD5_PROCESS_ALT) +void mbedtls_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] ) +{ + uint32_t X[16], A, B, C, D; + + GET_UINT32_LE( X[ 0], data, 0 ); + GET_UINT32_LE( X[ 1], data, 4 ); + GET_UINT32_LE( X[ 2], data, 8 ); + GET_UINT32_LE( X[ 3], data, 12 ); + GET_UINT32_LE( X[ 4], data, 16 ); + GET_UINT32_LE( X[ 5], data, 20 ); + GET_UINT32_LE( X[ 6], data, 24 ); + GET_UINT32_LE( X[ 7], data, 28 ); + GET_UINT32_LE( X[ 8], data, 32 ); + GET_UINT32_LE( X[ 9], data, 36 ); + GET_UINT32_LE( X[10], data, 40 ); + GET_UINT32_LE( X[11], data, 44 ); + GET_UINT32_LE( X[12], data, 48 ); + GET_UINT32_LE( X[13], data, 52 ); + GET_UINT32_LE( X[14], data, 56 ); + GET_UINT32_LE( X[15], data, 60 ); + +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + +#define P(a,b,c,d,k,s,t) \ +{ \ + a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \ +} + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + +#define F(x,y,z) (z ^ (x & (y ^ z))) + + P( A, B, C, D, 0, 7, 0xD76AA478 ); + P( D, A, B, C, 1, 12, 0xE8C7B756 ); + P( C, D, A, B, 2, 17, 0x242070DB ); + P( B, C, D, A, 3, 22, 0xC1BDCEEE ); + P( A, B, C, D, 4, 7, 0xF57C0FAF ); + P( D, A, B, C, 5, 12, 0x4787C62A ); + P( C, D, A, B, 6, 17, 0xA8304613 ); + P( B, C, D, A, 7, 22, 0xFD469501 ); + P( A, B, C, D, 8, 7, 0x698098D8 ); + P( D, A, B, C, 9, 12, 0x8B44F7AF ); + P( C, D, A, B, 10, 17, 0xFFFF5BB1 ); + P( B, C, D, A, 11, 22, 0x895CD7BE ); + P( A, B, C, D, 12, 7, 0x6B901122 ); + P( D, A, B, C, 13, 12, 0xFD987193 ); + P( C, D, A, B, 14, 17, 0xA679438E ); + P( B, C, D, A, 15, 22, 0x49B40821 ); + +#undef F + +#define F(x,y,z) (y ^ (z & (x ^ y))) + + P( A, B, C, D, 1, 5, 0xF61E2562 ); + P( D, A, B, C, 6, 9, 0xC040B340 ); + P( C, D, A, B, 11, 14, 0x265E5A51 ); + P( B, C, D, A, 0, 20, 0xE9B6C7AA ); + P( A, B, C, D, 5, 5, 0xD62F105D ); + P( D, A, B, C, 10, 9, 0x02441453 ); + P( C, D, A, B, 15, 14, 0xD8A1E681 ); + P( B, C, D, A, 4, 20, 0xE7D3FBC8 ); + P( A, B, C, D, 9, 5, 0x21E1CDE6 ); + P( D, A, B, C, 14, 9, 0xC33707D6 ); + P( C, D, A, B, 3, 14, 0xF4D50D87 ); + P( B, C, D, A, 8, 20, 0x455A14ED ); + P( A, B, C, D, 13, 5, 0xA9E3E905 ); + P( D, A, B, C, 2, 9, 0xFCEFA3F8 ); + P( C, D, A, B, 7, 14, 0x676F02D9 ); + P( B, C, D, A, 12, 20, 0x8D2A4C8A ); + +#undef F + +#define F(x,y,z) (x ^ y ^ z) + + P( A, B, C, D, 5, 4, 0xFFFA3942 ); + P( D, A, B, C, 8, 11, 0x8771F681 ); + P( C, D, A, B, 11, 16, 0x6D9D6122 ); + P( B, C, D, A, 14, 23, 0xFDE5380C ); + P( A, B, C, D, 1, 4, 0xA4BEEA44 ); + P( D, A, B, C, 4, 11, 0x4BDECFA9 ); + P( C, D, A, B, 7, 16, 0xF6BB4B60 ); + P( B, C, D, A, 10, 23, 0xBEBFBC70 ); + P( A, B, C, D, 13, 4, 0x289B7EC6 ); + P( D, A, B, C, 0, 11, 0xEAA127FA ); + P( C, D, A, B, 3, 16, 0xD4EF3085 ); + P( B, C, D, A, 6, 23, 0x04881D05 ); + P( A, B, C, D, 9, 4, 0xD9D4D039 ); + P( D, A, B, C, 12, 11, 0xE6DB99E5 ); + P( C, D, A, B, 15, 16, 0x1FA27CF8 ); + P( B, C, D, A, 2, 23, 0xC4AC5665 ); + +#undef F + +#define F(x,y,z) (y ^ (x | ~z)) + + P( A, B, C, D, 0, 6, 0xF4292244 ); + P( D, A, B, C, 7, 10, 0x432AFF97 ); + P( C, D, A, B, 14, 15, 0xAB9423A7 ); + P( B, C, D, A, 5, 21, 0xFC93A039 ); + P( A, B, C, D, 12, 6, 0x655B59C3 ); + P( D, A, B, C, 3, 10, 0x8F0CCC92 ); + P( C, D, A, B, 10, 15, 0xFFEFF47D ); + P( B, C, D, A, 1, 21, 0x85845DD1 ); + P( A, B, C, D, 8, 6, 0x6FA87E4F ); + P( D, A, B, C, 15, 10, 0xFE2CE6E0 ); + P( C, D, A, B, 6, 15, 0xA3014314 ); + P( B, C, D, A, 13, 21, 0x4E0811A1 ); + P( A, B, C, D, 4, 6, 0xF7537E82 ); + P( D, A, B, C, 11, 10, 0xBD3AF235 ); + P( C, D, A, B, 2, 15, 0x2AD7D2BB ); + P( B, C, D, A, 9, 21, 0xEB86D391 ); + +#undef F + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; +} +#endif /* !MBEDTLS_MD5_PROCESS_ALT */ + +/* + * MD5 process buffer + */ +void mbedtls_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen ) +{ + size_t fill; + uint32_t left; + + if( ilen == 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += (uint32_t) ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (uint32_t) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + memcpy( (void *) (ctx->buffer + left), input, fill ); + mbedtls_md5_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + mbedtls_md5_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + { + memcpy( (void *) (ctx->buffer + left), input, ilen ); + } +} + +static const unsigned char md5_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * MD5 final digest + */ +void mbedtls_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] ) +{ + uint32_t last, padn; + uint32_t high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_UINT32_LE( low, msglen, 0 ); + PUT_UINT32_LE( high, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + mbedtls_md5_update( ctx, md5_padding, padn ); + mbedtls_md5_update( ctx, msglen, 8 ); + + PUT_UINT32_LE( ctx->state[0], output, 0 ); + PUT_UINT32_LE( ctx->state[1], output, 4 ); + PUT_UINT32_LE( ctx->state[2], output, 8 ); + PUT_UINT32_LE( ctx->state[3], output, 12 ); +} + +#endif /* !MBEDTLS_MD5_ALT */ + +/* + * output = MD5( input buffer ) + */ +void mbedtls_md5( const unsigned char *input, size_t ilen, unsigned char output[16] ) +{ + mbedtls_md5_context ctx; + + mbedtls_md5_init( &ctx ); + mbedtls_md5_starts( &ctx ); + mbedtls_md5_update( &ctx, input, ilen ); + mbedtls_md5_finish( &ctx, output ); + mbedtls_md5_free( &ctx ); +} + +#if defined(MBEDTLS_SELF_TEST) +/* + * RFC 1321 test vectors + */ +static const unsigned char md5_test_buf[7][81] = +{ + { "" }, + { "a" }, + { "abc" }, + { "message digest" }, + { "abcdefghijklmnopqrstuvwxyz" }, + { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, + { "12345678901234567890123456789012345678901234567890123456789012" \ + "345678901234567890" } +}; + +static const int md5_test_buflen[7] = +{ + 0, 1, 3, 14, 26, 62, 80 +}; + +static const unsigned char md5_test_sum[7][16] = +{ + { 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04, + 0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E }, + { 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8, + 0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 }, + { 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0, + 0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 }, + { 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D, + 0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 }, + { 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00, + 0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B }, + { 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5, + 0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F }, + { 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55, + 0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A } +}; + +/* + * Checkup routine + */ +int mbedtls_md5_self_test( int verbose ) +{ + int i; + unsigned char md5sum[16]; + + for( i = 0; i < 7; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " MD5 test #%d: ", i + 1 ); + + mbedtls_md5( md5_test_buf[i], md5_test_buflen[i], md5sum ); + + if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_MD5_C */ diff --git a/mbedtls/md_wrap.c b/mbedtls/md_wrap.c new file mode 100644 index 0000000..2cfcae2 --- /dev/null +++ b/mbedtls/md_wrap.c @@ -0,0 +1,575 @@ +/** + * \file md_wrap.c + * + * \brief Generic message digest wrapper for mbed TLS + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_MD_C) + +#include "mbedtls/md_internal.h" + +#if defined(MBEDTLS_MD2_C) +#include "mbedtls/md2.h" +#endif + +#if defined(MBEDTLS_MD4_C) +#include "mbedtls/md4.h" +#endif + +#if defined(MBEDTLS_MD5_C) +#include "mbedtls/md5.h" +#endif + +#if defined(MBEDTLS_RIPEMD160_C) +#include "mbedtls/ripemd160.h" +#endif + +#if defined(MBEDTLS_SHA1_C) +#include "mbedtls/sha1.h" +#endif + +#if defined(MBEDTLS_SHA256_C) +#include "mbedtls/sha256.h" +#endif + +#if defined(MBEDTLS_SHA512_C) +#include "mbedtls/sha512.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#if defined(MBEDTLS_MD2_C) + +static void md2_starts_wrap( void *ctx ) +{ + mbedtls_md2_starts( (mbedtls_md2_context *) ctx ); +} + +static void md2_update_wrap( void *ctx, const unsigned char *input, + size_t ilen ) +{ + mbedtls_md2_update( (mbedtls_md2_context *) ctx, input, ilen ); +} + +static void md2_finish_wrap( void *ctx, unsigned char *output ) +{ + mbedtls_md2_finish( (mbedtls_md2_context *) ctx, output ); +} + +static void *md2_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_md2_context ) ); + + if( ctx != NULL ) + mbedtls_md2_init( (mbedtls_md2_context *) ctx ); + + return( ctx ); +} + +static void md2_ctx_free( void *ctx ) +{ + mbedtls_md2_free( (mbedtls_md2_context *) ctx ); + mbedtls_free( ctx ); +} + +static void md2_clone_wrap( void *dst, const void *src ) +{ + mbedtls_md2_clone( (mbedtls_md2_context *) dst, + (const mbedtls_md2_context *) src ); +} + +static void md2_process_wrap( void *ctx, const unsigned char *data ) +{ + ((void) data); + + mbedtls_md2_process( (mbedtls_md2_context *) ctx ); +} + +const mbedtls_md_info_t mbedtls_md2_info = { + MBEDTLS_MD_MD2, + "MD2", + 16, + 16, + md2_starts_wrap, + md2_update_wrap, + md2_finish_wrap, + mbedtls_md2, + md2_ctx_alloc, + md2_ctx_free, + md2_clone_wrap, + md2_process_wrap, +}; + +#endif /* MBEDTLS_MD2_C */ + +#if defined(MBEDTLS_MD4_C) + +static void md4_starts_wrap( void *ctx ) +{ + mbedtls_md4_starts( (mbedtls_md4_context *) ctx ); +} + +static void md4_update_wrap( void *ctx, const unsigned char *input, + size_t ilen ) +{ + mbedtls_md4_update( (mbedtls_md4_context *) ctx, input, ilen ); +} + +static void md4_finish_wrap( void *ctx, unsigned char *output ) +{ + mbedtls_md4_finish( (mbedtls_md4_context *) ctx, output ); +} + +static void *md4_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_md4_context ) ); + + if( ctx != NULL ) + mbedtls_md4_init( (mbedtls_md4_context *) ctx ); + + return( ctx ); +} + +static void md4_ctx_free( void *ctx ) +{ + mbedtls_md4_free( (mbedtls_md4_context *) ctx ); + mbedtls_free( ctx ); +} + +static void md4_clone_wrap( void *dst, const void *src ) +{ + mbedtls_md4_clone( (mbedtls_md4_context *) dst, + (const mbedtls_md4_context *) src ); +} + +static void md4_process_wrap( void *ctx, const unsigned char *data ) +{ + mbedtls_md4_process( (mbedtls_md4_context *) ctx, data ); +} + +const mbedtls_md_info_t mbedtls_md4_info = { + MBEDTLS_MD_MD4, + "MD4", + 16, + 64, + md4_starts_wrap, + md4_update_wrap, + md4_finish_wrap, + mbedtls_md4, + md4_ctx_alloc, + md4_ctx_free, + md4_clone_wrap, + md4_process_wrap, +}; + +#endif /* MBEDTLS_MD4_C */ + +#if defined(MBEDTLS_MD5_C) + +static void md5_starts_wrap( void *ctx ) +{ + mbedtls_md5_starts( (mbedtls_md5_context *) ctx ); +} + +static void md5_update_wrap( void *ctx, const unsigned char *input, + size_t ilen ) +{ + mbedtls_md5_update( (mbedtls_md5_context *) ctx, input, ilen ); +} + +static void md5_finish_wrap( void *ctx, unsigned char *output ) +{ + mbedtls_md5_finish( (mbedtls_md5_context *) ctx, output ); +} + +static void *md5_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_md5_context ) ); + + if( ctx != NULL ) + mbedtls_md5_init( (mbedtls_md5_context *) ctx ); + + return( ctx ); +} + +static void md5_ctx_free( void *ctx ) +{ + mbedtls_md5_free( (mbedtls_md5_context *) ctx ); + mbedtls_free( ctx ); +} + +static void md5_clone_wrap( void *dst, const void *src ) +{ + mbedtls_md5_clone( (mbedtls_md5_context *) dst, + (const mbedtls_md5_context *) src ); +} + +static void md5_process_wrap( void *ctx, const unsigned char *data ) +{ + mbedtls_md5_process( (mbedtls_md5_context *) ctx, data ); +} + +const mbedtls_md_info_t mbedtls_md5_info = { + MBEDTLS_MD_MD5, + "MD5", + 16, + 64, + md5_starts_wrap, + md5_update_wrap, + md5_finish_wrap, + mbedtls_md5, + md5_ctx_alloc, + md5_ctx_free, + md5_clone_wrap, + md5_process_wrap, +}; + +#endif /* MBEDTLS_MD5_C */ + +#if defined(MBEDTLS_RIPEMD160_C) + +static void ripemd160_starts_wrap( void *ctx ) +{ + mbedtls_ripemd160_starts( (mbedtls_ripemd160_context *) ctx ); +} + +static void ripemd160_update_wrap( void *ctx, const unsigned char *input, + size_t ilen ) +{ + mbedtls_ripemd160_update( (mbedtls_ripemd160_context *) ctx, input, ilen ); +} + +static void ripemd160_finish_wrap( void *ctx, unsigned char *output ) +{ + mbedtls_ripemd160_finish( (mbedtls_ripemd160_context *) ctx, output ); +} + +static void *ripemd160_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ripemd160_context ) ); + + if( ctx != NULL ) + mbedtls_ripemd160_init( (mbedtls_ripemd160_context *) ctx ); + + return( ctx ); +} + +static void ripemd160_ctx_free( void *ctx ) +{ + mbedtls_ripemd160_free( (mbedtls_ripemd160_context *) ctx ); + mbedtls_free( ctx ); +} + +static void ripemd160_clone_wrap( void *dst, const void *src ) +{ + mbedtls_ripemd160_clone( (mbedtls_ripemd160_context *) dst, + (const mbedtls_ripemd160_context *) src ); +} + +static void ripemd160_process_wrap( void *ctx, const unsigned char *data ) +{ + mbedtls_ripemd160_process( (mbedtls_ripemd160_context *) ctx, data ); +} + +const mbedtls_md_info_t mbedtls_ripemd160_info = { + MBEDTLS_MD_RIPEMD160, + "RIPEMD160", + 20, + 64, + ripemd160_starts_wrap, + ripemd160_update_wrap, + ripemd160_finish_wrap, + mbedtls_ripemd160, + ripemd160_ctx_alloc, + ripemd160_ctx_free, + ripemd160_clone_wrap, + ripemd160_process_wrap, +}; + +#endif /* MBEDTLS_RIPEMD160_C */ + +#if defined(MBEDTLS_SHA1_C) + +static void sha1_starts_wrap( void *ctx ) +{ + mbedtls_sha1_starts( (mbedtls_sha1_context *) ctx ); +} + +static void sha1_update_wrap( void *ctx, const unsigned char *input, + size_t ilen ) +{ + mbedtls_sha1_update( (mbedtls_sha1_context *) ctx, input, ilen ); +} + +static void sha1_finish_wrap( void *ctx, unsigned char *output ) +{ + mbedtls_sha1_finish( (mbedtls_sha1_context *) ctx, output ); +} + +static void *sha1_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_sha1_context ) ); + + if( ctx != NULL ) + mbedtls_sha1_init( (mbedtls_sha1_context *) ctx ); + + return( ctx ); +} + +static void sha1_clone_wrap( void *dst, const void *src ) +{ + mbedtls_sha1_clone( (mbedtls_sha1_context *) dst, + (const mbedtls_sha1_context *) src ); +} + +static void sha1_ctx_free( void *ctx ) +{ + mbedtls_sha1_free( (mbedtls_sha1_context *) ctx ); + mbedtls_free( ctx ); +} + +static void sha1_process_wrap( void *ctx, const unsigned char *data ) +{ + mbedtls_sha1_process( (mbedtls_sha1_context *) ctx, data ); +} + +const mbedtls_md_info_t mbedtls_sha1_info = { + MBEDTLS_MD_SHA1, + "SHA1", + 20, + 64, + sha1_starts_wrap, + sha1_update_wrap, + sha1_finish_wrap, + mbedtls_sha1, + sha1_ctx_alloc, + sha1_ctx_free, + sha1_clone_wrap, + sha1_process_wrap, +}; + +#endif /* MBEDTLS_SHA1_C */ + +/* + * Wrappers for generic message digests + */ +#if defined(MBEDTLS_SHA256_C) + +static void sha224_starts_wrap( void *ctx ) +{ + mbedtls_sha256_starts( (mbedtls_sha256_context *) ctx, 1 ); +} + +static void sha224_update_wrap( void *ctx, const unsigned char *input, + size_t ilen ) +{ + mbedtls_sha256_update( (mbedtls_sha256_context *) ctx, input, ilen ); +} + +static void sha224_finish_wrap( void *ctx, unsigned char *output ) +{ + mbedtls_sha256_finish( (mbedtls_sha256_context *) ctx, output ); +} + +static void sha224_wrap( const unsigned char *input, size_t ilen, + unsigned char *output ) +{ + mbedtls_sha256( input, ilen, output, 1 ); +} + +static void *sha224_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_sha256_context ) ); + + if( ctx != NULL ) + mbedtls_sha256_init( (mbedtls_sha256_context *) ctx ); + + return( ctx ); +} + +static void sha224_ctx_free( void *ctx ) +{ + mbedtls_sha256_free( (mbedtls_sha256_context *) ctx ); + mbedtls_free( ctx ); +} + +static void sha224_clone_wrap( void *dst, const void *src ) +{ + mbedtls_sha256_clone( (mbedtls_sha256_context *) dst, + (const mbedtls_sha256_context *) src ); +} + +static void sha224_process_wrap( void *ctx, const unsigned char *data ) +{ + mbedtls_sha256_process( (mbedtls_sha256_context *) ctx, data ); +} + +const mbedtls_md_info_t mbedtls_sha224_info = { + MBEDTLS_MD_SHA224, + "SHA224", + 28, + 64, + sha224_starts_wrap, + sha224_update_wrap, + sha224_finish_wrap, + sha224_wrap, + sha224_ctx_alloc, + sha224_ctx_free, + sha224_clone_wrap, + sha224_process_wrap, +}; + +static void sha256_starts_wrap( void *ctx ) +{ + mbedtls_sha256_starts( (mbedtls_sha256_context *) ctx, 0 ); +} + +static void sha256_wrap( const unsigned char *input, size_t ilen, + unsigned char *output ) +{ + mbedtls_sha256( input, ilen, output, 0 ); +} + +const mbedtls_md_info_t mbedtls_sha256_info = { + MBEDTLS_MD_SHA256, + "SHA256", + 32, + 64, + sha256_starts_wrap, + sha224_update_wrap, + sha224_finish_wrap, + sha256_wrap, + sha224_ctx_alloc, + sha224_ctx_free, + sha224_clone_wrap, + sha224_process_wrap, +}; + +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + +static void sha384_starts_wrap( void *ctx ) +{ + mbedtls_sha512_starts( (mbedtls_sha512_context *) ctx, 1 ); +} + +static void sha384_update_wrap( void *ctx, const unsigned char *input, + size_t ilen ) +{ + mbedtls_sha512_update( (mbedtls_sha512_context *) ctx, input, ilen ); +} + +static void sha384_finish_wrap( void *ctx, unsigned char *output ) +{ + mbedtls_sha512_finish( (mbedtls_sha512_context *) ctx, output ); +} + +static void sha384_wrap( const unsigned char *input, size_t ilen, + unsigned char *output ) +{ + mbedtls_sha512( input, ilen, output, 1 ); +} + +static void *sha384_ctx_alloc( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_sha512_context ) ); + + if( ctx != NULL ) + mbedtls_sha512_init( (mbedtls_sha512_context *) ctx ); + + return( ctx ); +} + +static void sha384_ctx_free( void *ctx ) +{ + mbedtls_sha512_free( (mbedtls_sha512_context *) ctx ); + mbedtls_free( ctx ); +} + +static void sha384_clone_wrap( void *dst, const void *src ) +{ + mbedtls_sha512_clone( (mbedtls_sha512_context *) dst, + (const mbedtls_sha512_context *) src ); +} + +static void sha384_process_wrap( void *ctx, const unsigned char *data ) +{ + mbedtls_sha512_process( (mbedtls_sha512_context *) ctx, data ); +} + +const mbedtls_md_info_t mbedtls_sha384_info = { + MBEDTLS_MD_SHA384, + "SHA384", + 48, + 128, + sha384_starts_wrap, + sha384_update_wrap, + sha384_finish_wrap, + sha384_wrap, + sha384_ctx_alloc, + sha384_ctx_free, + sha384_clone_wrap, + sha384_process_wrap, +}; + +static void sha512_starts_wrap( void *ctx ) +{ + mbedtls_sha512_starts( (mbedtls_sha512_context *) ctx, 0 ); +} + +static void sha512_wrap( const unsigned char *input, size_t ilen, + unsigned char *output ) +{ + mbedtls_sha512( input, ilen, output, 0 ); +} + +const mbedtls_md_info_t mbedtls_sha512_info = { + MBEDTLS_MD_SHA512, + "SHA512", + 64, + 128, + sha512_starts_wrap, + sha384_update_wrap, + sha384_finish_wrap, + sha512_wrap, + sha384_ctx_alloc, + sha384_ctx_free, + sha384_clone_wrap, + sha384_process_wrap, +}; + +#endif /* MBEDTLS_SHA512_C */ + +#endif /* MBEDTLS_MD_C */ diff --git a/mbedtls/memory_buffer_alloc.c b/mbedtls/memory_buffer_alloc.c new file mode 100644 index 0000000..545d5a2 --- /dev/null +++ b/mbedtls/memory_buffer_alloc.c @@ -0,0 +1,745 @@ +/* + * Buffer-based memory allocator + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) +#include "mbedtls/memory_buffer_alloc.h" + +/* No need for the header guard as MBEDTLS_MEMORY_BUFFER_ALLOC_C + is dependent upon MBEDTLS_PLATFORM_C */ +#include "mbedtls/platform.h" + +#include + +#if defined(MBEDTLS_MEMORY_BACKTRACE) +#include +#endif + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +#define MAGIC1 0xFF00AA55 +#define MAGIC2 0xEE119966 +#define MAX_BT 20 + +typedef struct _memory_header memory_header; +struct _memory_header +{ + size_t magic1; + size_t size; + size_t alloc; + memory_header *prev; + memory_header *next; + memory_header *prev_free; + memory_header *next_free; +#if defined(MBEDTLS_MEMORY_BACKTRACE) + char **trace; + size_t trace_count; +#endif + size_t magic2; +}; + +typedef struct +{ + unsigned char *buf; + size_t len; + memory_header *first; + memory_header *first_free; + int verify; +#if defined(MBEDTLS_MEMORY_DEBUG) + size_t alloc_count; + size_t free_count; + size_t total_used; + size_t maximum_used; + size_t header_count; + size_t maximum_header_count; +#endif +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t mutex; +#endif +} +buffer_alloc_ctx; + +static buffer_alloc_ctx heap; + +#if defined(MBEDTLS_MEMORY_DEBUG) +static void debug_header( memory_header *hdr ) +{ +#if defined(MBEDTLS_MEMORY_BACKTRACE) + size_t i; +#endif + + mbedtls_fprintf( stderr, "HDR: PTR(%10zu), PREV(%10zu), NEXT(%10zu), " + "ALLOC(%zu), SIZE(%10zu)\n", + (size_t) hdr, (size_t) hdr->prev, (size_t) hdr->next, + hdr->alloc, hdr->size ); + mbedtls_fprintf( stderr, " FPREV(%10zu), FNEXT(%10zu)\n", + (size_t) hdr->prev_free, (size_t) hdr->next_free ); + +#if defined(MBEDTLS_MEMORY_BACKTRACE) + mbedtls_fprintf( stderr, "TRACE: \n" ); + for( i = 0; i < hdr->trace_count; i++ ) + mbedtls_fprintf( stderr, "%s\n", hdr->trace[i] ); + mbedtls_fprintf( stderr, "\n" ); +#endif +} + +static void debug_chain() +{ + memory_header *cur = heap.first; + + mbedtls_fprintf( stderr, "\nBlock list\n" ); + while( cur != NULL ) + { + debug_header( cur ); + cur = cur->next; + } + + mbedtls_fprintf( stderr, "Free list\n" ); + cur = heap.first_free; + + while( cur != NULL ) + { + debug_header( cur ); + cur = cur->next_free; + } +} +#endif /* MBEDTLS_MEMORY_DEBUG */ + +static int verify_header( memory_header *hdr ) +{ + if( hdr->magic1 != MAGIC1 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: MAGIC1 mismatch\n" ); +#endif + return( 1 ); + } + + if( hdr->magic2 != MAGIC2 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: MAGIC2 mismatch\n" ); +#endif + return( 1 ); + } + + if( hdr->alloc > 1 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: alloc has illegal value\n" ); +#endif + return( 1 ); + } + + if( hdr->prev != NULL && hdr->prev == hdr->next ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: prev == next\n" ); +#endif + return( 1 ); + } + + if( hdr->prev_free != NULL && hdr->prev_free == hdr->next_free ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: prev_free == next_free\n" ); +#endif + return( 1 ); + } + + return( 0 ); +} + +static int verify_chain() +{ + memory_header *prv = heap.first, *cur = heap.first->next; + + if( verify_header( heap.first ) != 0 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: verification of first header " + "failed\n" ); +#endif + return( 1 ); + } + + if( heap.first->prev != NULL ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: verification failed: " + "first->prev != NULL\n" ); +#endif + return( 1 ); + } + + while( cur != NULL ) + { + if( verify_header( cur ) != 0 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: verification of header " + "failed\n" ); +#endif + return( 1 ); + } + + if( cur->prev != prv ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: verification failed: " + "cur->prev != prv\n" ); +#endif + return( 1 ); + } + + prv = cur; + cur = cur->next; + } + + return( 0 ); +} + +static void *buffer_alloc_calloc( size_t n, size_t size ) +{ + memory_header *new, *cur = heap.first_free; + unsigned char *p; + void *ret; + size_t original_len, len; +#if defined(MBEDTLS_MEMORY_BACKTRACE) + void *trace_buffer[MAX_BT]; + size_t trace_cnt; +#endif + + if( heap.buf == NULL || heap.first == NULL ) + return( NULL ); + + original_len = len = n * size; + + if( n != 0 && len / n != size ) + return( NULL ); + + if( len % MBEDTLS_MEMORY_ALIGN_MULTIPLE ) + { + len -= len % MBEDTLS_MEMORY_ALIGN_MULTIPLE; + len += MBEDTLS_MEMORY_ALIGN_MULTIPLE; + } + + // Find block that fits + // + while( cur != NULL ) + { + if( cur->size >= len ) + break; + + cur = cur->next_free; + } + + if( cur == NULL ) + return( NULL ); + + if( cur->alloc != 0 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: block in free_list but allocated " + "data\n" ); +#endif + mbedtls_exit( 1 ); + } + +#if defined(MBEDTLS_MEMORY_DEBUG) + heap.alloc_count++; +#endif + + // Found location, split block if > memory_header + 4 room left + // + if( cur->size - len < sizeof(memory_header) + + MBEDTLS_MEMORY_ALIGN_MULTIPLE ) + { + cur->alloc = 1; + + // Remove from free_list + // + if( cur->prev_free != NULL ) + cur->prev_free->next_free = cur->next_free; + else + heap.first_free = cur->next_free; + + if( cur->next_free != NULL ) + cur->next_free->prev_free = cur->prev_free; + + cur->prev_free = NULL; + cur->next_free = NULL; + +#if defined(MBEDTLS_MEMORY_DEBUG) + heap.total_used += cur->size; + if( heap.total_used > heap.maximum_used ) + heap.maximum_used = heap.total_used; +#endif +#if defined(MBEDTLS_MEMORY_BACKTRACE) + trace_cnt = backtrace( trace_buffer, MAX_BT ); + cur->trace = backtrace_symbols( trace_buffer, trace_cnt ); + cur->trace_count = trace_cnt; +#endif + + if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 ) + mbedtls_exit( 1 ); + + ret = (unsigned char *) cur + sizeof( memory_header ); + memset( ret, 0, original_len ); + + return( ret ); + } + + p = ( (unsigned char *) cur ) + sizeof(memory_header) + len; + new = (memory_header *) p; + + new->size = cur->size - len - sizeof(memory_header); + new->alloc = 0; + new->prev = cur; + new->next = cur->next; +#if defined(MBEDTLS_MEMORY_BACKTRACE) + new->trace = NULL; + new->trace_count = 0; +#endif + new->magic1 = MAGIC1; + new->magic2 = MAGIC2; + + if( new->next != NULL ) + new->next->prev = new; + + // Replace cur with new in free_list + // + new->prev_free = cur->prev_free; + new->next_free = cur->next_free; + if( new->prev_free != NULL ) + new->prev_free->next_free = new; + else + heap.first_free = new; + + if( new->next_free != NULL ) + new->next_free->prev_free = new; + + cur->alloc = 1; + cur->size = len; + cur->next = new; + cur->prev_free = NULL; + cur->next_free = NULL; + +#if defined(MBEDTLS_MEMORY_DEBUG) + heap.header_count++; + if( heap.header_count > heap.maximum_header_count ) + heap.maximum_header_count = heap.header_count; + heap.total_used += cur->size; + if( heap.total_used > heap.maximum_used ) + heap.maximum_used = heap.total_used; +#endif +#if defined(MBEDTLS_MEMORY_BACKTRACE) + trace_cnt = backtrace( trace_buffer, MAX_BT ); + cur->trace = backtrace_symbols( trace_buffer, trace_cnt ); + cur->trace_count = trace_cnt; +#endif + + if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 ) + mbedtls_exit( 1 ); + + ret = (unsigned char *) cur + sizeof( memory_header ); + memset( ret, 0, original_len ); + + return( ret ); +} + +static void buffer_alloc_free( void *ptr ) +{ + memory_header *hdr, *old = NULL; + unsigned char *p = (unsigned char *) ptr; + + if( ptr == NULL || heap.buf == NULL || heap.first == NULL ) + return; + + if( p < heap.buf || p > heap.buf + heap.len ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: mbedtls_free() outside of managed " + "space\n" ); +#endif + mbedtls_exit( 1 ); + } + + p -= sizeof(memory_header); + hdr = (memory_header *) p; + + if( verify_header( hdr ) != 0 ) + mbedtls_exit( 1 ); + + if( hdr->alloc != 1 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_fprintf( stderr, "FATAL: mbedtls_free() on unallocated " + "data\n" ); +#endif + mbedtls_exit( 1 ); + } + + hdr->alloc = 0; + +#if defined(MBEDTLS_MEMORY_DEBUG) + heap.free_count++; + heap.total_used -= hdr->size; +#endif + +#if defined(MBEDTLS_MEMORY_BACKTRACE) + free( hdr->trace ); + hdr->trace = NULL; + hdr->trace_count = 0; +#endif + + // Regroup with block before + // + if( hdr->prev != NULL && hdr->prev->alloc == 0 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + heap.header_count--; +#endif + hdr->prev->size += sizeof(memory_header) + hdr->size; + hdr->prev->next = hdr->next; + old = hdr; + hdr = hdr->prev; + + if( hdr->next != NULL ) + hdr->next->prev = hdr; + + memset( old, 0, sizeof(memory_header) ); + } + + // Regroup with block after + // + if( hdr->next != NULL && hdr->next->alloc == 0 ) + { +#if defined(MBEDTLS_MEMORY_DEBUG) + heap.header_count--; +#endif + hdr->size += sizeof(memory_header) + hdr->next->size; + old = hdr->next; + hdr->next = hdr->next->next; + + if( hdr->prev_free != NULL || hdr->next_free != NULL ) + { + if( hdr->prev_free != NULL ) + hdr->prev_free->next_free = hdr->next_free; + else + heap.first_free = hdr->next_free; + + if( hdr->next_free != NULL ) + hdr->next_free->prev_free = hdr->prev_free; + } + + hdr->prev_free = old->prev_free; + hdr->next_free = old->next_free; + + if( hdr->prev_free != NULL ) + hdr->prev_free->next_free = hdr; + else + heap.first_free = hdr; + + if( hdr->next_free != NULL ) + hdr->next_free->prev_free = hdr; + + if( hdr->next != NULL ) + hdr->next->prev = hdr; + + memset( old, 0, sizeof(memory_header) ); + } + + // Prepend to free_list if we have not merged + // (Does not have to stay in same order as prev / next list) + // + if( old == NULL ) + { + hdr->next_free = heap.first_free; + if( heap.first_free != NULL ) + heap.first_free->prev_free = hdr; + heap.first_free = hdr; + } + + if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_FREE ) && verify_chain() != 0 ) + mbedtls_exit( 1 ); +} + +void mbedtls_memory_buffer_set_verify( int verify ) +{ + heap.verify = verify; +} + +int mbedtls_memory_buffer_alloc_verify() +{ + return verify_chain(); +} + +#if defined(MBEDTLS_MEMORY_DEBUG) +void mbedtls_memory_buffer_alloc_status() +{ + mbedtls_fprintf( stderr, + "Current use: %zu blocks / %zu bytes, max: %zu blocks / " + "%zu bytes (total %zu bytes), alloc / free: %zu / %zu\n", + heap.header_count, heap.total_used, + heap.maximum_header_count, heap.maximum_used, + heap.maximum_header_count * sizeof( memory_header ) + + heap.maximum_used, + heap.alloc_count, heap.free_count ); + + if( heap.first->next == NULL ) + mbedtls_fprintf( stderr, "All memory de-allocated in stack buffer\n" ); + else + { + mbedtls_fprintf( stderr, "Memory currently allocated:\n" ); + debug_chain(); + } +} + +void mbedtls_memory_buffer_alloc_max_get( size_t *max_used, size_t *max_blocks ) +{ + *max_used = heap.maximum_used; + *max_blocks = heap.maximum_header_count; +} + +void mbedtls_memory_buffer_alloc_max_reset( void ) +{ + heap.maximum_used = 0; + heap.maximum_header_count = 0; +} + +void mbedtls_memory_buffer_alloc_cur_get( size_t *cur_used, size_t *cur_blocks ) +{ + *cur_used = heap.total_used; + *cur_blocks = heap.header_count; +} +#endif /* MBEDTLS_MEMORY_DEBUG */ + +#if defined(MBEDTLS_THREADING_C) +static void *buffer_alloc_calloc_mutexed( size_t n, size_t size ) +{ + void *buf; + if( mbedtls_mutex_lock( &heap.mutex ) != 0 ) + return( NULL ); + buf = buffer_alloc_calloc( n, size ); + if( mbedtls_mutex_unlock( &heap.mutex ) ) + return( NULL ); + return( buf ); +} + +static void buffer_alloc_free_mutexed( void *ptr ) +{ + /* We have to good option here, but corrupting the heap seems + * worse than loosing memory. */ + if( mbedtls_mutex_lock( &heap.mutex ) ) + return; + buffer_alloc_free( ptr ); + (void) mbedtls_mutex_unlock( &heap.mutex ); +} +#endif /* MBEDTLS_THREADING_C */ + +void mbedtls_memory_buffer_alloc_init( unsigned char *buf, size_t len ) +{ + memset( &heap, 0, sizeof(buffer_alloc_ctx) ); + memset( buf, 0, len ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &heap.mutex ); + mbedtls_platform_set_calloc_free( buffer_alloc_calloc_mutexed, + buffer_alloc_free_mutexed ); +#else + mbedtls_platform_set_calloc_free( buffer_alloc_calloc, buffer_alloc_free ); +#endif + + if( (size_t) buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE ) + { + /* Adjust len first since buf is used in the computation */ + len -= MBEDTLS_MEMORY_ALIGN_MULTIPLE + - (size_t) buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE; + buf += MBEDTLS_MEMORY_ALIGN_MULTIPLE + - (size_t) buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE; + } + + heap.buf = buf; + heap.len = len; + + heap.first = (memory_header *) buf; + heap.first->size = len - sizeof(memory_header); + heap.first->magic1 = MAGIC1; + heap.first->magic2 = MAGIC2; + heap.first_free = heap.first; +} + +void mbedtls_memory_buffer_alloc_free() +{ +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &heap.mutex ); +#endif + mbedtls_zeroize( &heap, sizeof(buffer_alloc_ctx) ); +} + +#if defined(MBEDTLS_SELF_TEST) +static int check_pointer( void *p ) +{ + if( p == NULL ) + return( -1 ); + + if( (size_t) p % MBEDTLS_MEMORY_ALIGN_MULTIPLE != 0 ) + return( -1 ); + + return( 0 ); +} + +static int check_all_free( ) +{ + if( +#if defined(MBEDTLS_MEMORY_DEBUG) + heap.total_used != 0 || +#endif + heap.first != heap.first_free || + (void *) heap.first != (void *) heap.buf ) + { + return( -1 ); + } + + return( 0 ); +} + +#define TEST_ASSERT( condition ) \ + if( ! (condition) ) \ + { \ + if( verbose != 0 ) \ + mbedtls_printf( "failed\n" ); \ + \ + ret = 1; \ + goto cleanup; \ + } + +int mbedtls_memory_buffer_alloc_self_test( int verbose ) +{ + unsigned char buf[1024]; + unsigned char *p, *q, *r, *end; + int ret = 0; + + if( verbose != 0 ) + mbedtls_printf( " MBA test #1 (basic alloc-free cycle): " ); + + mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) ); + + p = mbedtls_calloc( 1, 1 ); + q = mbedtls_calloc( 1, 128 ); + r = mbedtls_calloc( 1, 16 ); + + TEST_ASSERT( check_pointer( p ) == 0 && + check_pointer( q ) == 0 && + check_pointer( r ) == 0 ); + + mbedtls_free( r ); + mbedtls_free( q ); + mbedtls_free( p ); + + TEST_ASSERT( check_all_free( ) == 0 ); + + /* Memorize end to compare with the next test */ + end = heap.buf + heap.len; + + mbedtls_memory_buffer_alloc_free( ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " MBA test #2 (buf not aligned): " ); + + mbedtls_memory_buffer_alloc_init( buf + 1, sizeof( buf ) - 1 ); + + TEST_ASSERT( heap.buf + heap.len == end ); + + p = mbedtls_calloc( 1, 1 ); + q = mbedtls_calloc( 1, 128 ); + r = mbedtls_calloc( 1, 16 ); + + TEST_ASSERT( check_pointer( p ) == 0 && + check_pointer( q ) == 0 && + check_pointer( r ) == 0 ); + + mbedtls_free( r ); + mbedtls_free( q ); + mbedtls_free( p ); + + TEST_ASSERT( check_all_free( ) == 0 ); + + mbedtls_memory_buffer_alloc_free( ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " MBA test #3 (full): " ); + + mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) ); + + p = mbedtls_calloc( 1, sizeof( buf ) - sizeof( memory_header ) ); + + TEST_ASSERT( check_pointer( p ) == 0 ); + TEST_ASSERT( mbedtls_calloc( 1, 1 ) == NULL ); + + mbedtls_free( p ); + + p = mbedtls_calloc( 1, sizeof( buf ) - 2 * sizeof( memory_header ) - 16 ); + q = mbedtls_calloc( 1, 16 ); + + TEST_ASSERT( check_pointer( p ) == 0 && check_pointer( q ) == 0 ); + TEST_ASSERT( mbedtls_calloc( 1, 1 ) == NULL ); + + mbedtls_free( q ); + + TEST_ASSERT( mbedtls_calloc( 1, 17 ) == NULL ); + + mbedtls_free( p ); + + TEST_ASSERT( check_all_free( ) == 0 ); + + mbedtls_memory_buffer_alloc_free( ); + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + +cleanup: + mbedtls_memory_buffer_alloc_free( ); + + return( ret ); +} +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */ diff --git a/mbedtls/net_sockets.c b/mbedtls/net_sockets.c new file mode 100644 index 0000000..cc06cbf --- /dev/null +++ b/mbedtls/net_sockets.c @@ -0,0 +1,585 @@ +/* + * TCP/IP or UDP/IP networking functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_NET_C) + +#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \ + !defined(__APPLE__) && !defined(_WIN32) +#error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#endif + +#include "mbedtls/net_sockets.h" + +#include + +#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \ + !defined(EFI32) + +#ifdef _WIN32_WINNT +#undef _WIN32_WINNT +#endif +/* Enables getaddrinfo() & Co */ +#define _WIN32_WINNT 0x0501 +#include + +#include +#include + +#if defined(_MSC_VER) +#if defined(_WIN32_WCE) +#pragma comment( lib, "ws2.lib" ) +#else +#pragma comment( lib, "ws2_32.lib" ) +#endif +#endif /* _MSC_VER */ + +#define read(fd,buf,len) recv(fd,(char*)buf,(int) len,0) +#define write(fd,buf,len) send(fd,(char*)buf,(int) len,0) +#define close(fd) closesocket(fd) + +static int wsa_init_done = 0; + +#else /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */ + +/* Some MS functions want int and MSVC warns if we pass size_t, + * but the standard fucntions use socklen_t, so cast only for MSVC */ +#if defined(_MSC_VER) +#define MSVC_INT_CAST (int) +#else +#define MSVC_INT_CAST +#endif + +#include + +#include + +#include + +/* + * Prepare for using the sockets interface + */ +static int net_prepare( void ) +{ +#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ + !defined(EFI32) + WSADATA wsaData; + + if( wsa_init_done == 0 ) + { + if( WSAStartup( MAKEWORD(2,0), &wsaData ) != 0 ) + return( MBEDTLS_ERR_NET_SOCKET_FAILED ); + + wsa_init_done = 1; + } +#else +#if !defined(EFIX64) && !defined(EFI32) + signal( SIGPIPE, SIG_IGN ); +#endif +#endif + return( 0 ); +} + +/* + * Initialize a context + */ +void mbedtls_net_init( mbedtls_net_context *ctx ) +{ + ctx->fd = -1; +} + +/* + * Initiate a TCP connection with host:port and the given protocol + */ +int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, const char *port, int proto ) +{ + int ret; + struct addrinfo hints, *addr_list, *cur; + + if( ( ret = net_prepare() ) != 0 ) + return( ret ); + + /* Do name resolution with both IPv6 and IPv4 */ + memset( &hints, 0, sizeof( hints ) ); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM; + hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP; + + if( getaddrinfo( host, port, &hints, &addr_list ) != 0 ) + return( MBEDTLS_ERR_NET_UNKNOWN_HOST ); + + /* Try the sockaddrs until a connection succeeds */ + ret = MBEDTLS_ERR_NET_UNKNOWN_HOST; + for( cur = addr_list; cur != NULL; cur = cur->ai_next ) + { + ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype, + cur->ai_protocol ); + if( ctx->fd < 0 ) + { + ret = MBEDTLS_ERR_NET_SOCKET_FAILED; + continue; + } + + if( connect( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) == 0 ) + { + ret = 0; + break; + } + + close( ctx->fd ); + ret = MBEDTLS_ERR_NET_CONNECT_FAILED; + } + + freeaddrinfo( addr_list ); + + return( ret ); +} + +/* + * Create a listening socket on bind_ip:port + */ +int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto ) +{ + int n, ret; + struct addrinfo hints, *addr_list, *cur; + + if( ( ret = net_prepare() ) != 0 ) + return( ret ); + + /* Bind to IPv6 and/or IPv4, but only in the desired protocol */ + memset( &hints, 0, sizeof( hints ) ); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM; + hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP; + if( bind_ip == NULL ) + hints.ai_flags = AI_PASSIVE; + + if( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 ) + return( MBEDTLS_ERR_NET_UNKNOWN_HOST ); + + /* Try the sockaddrs until a binding succeeds */ + ret = MBEDTLS_ERR_NET_UNKNOWN_HOST; + for( cur = addr_list; cur != NULL; cur = cur->ai_next ) + { + ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype, + cur->ai_protocol ); + if( ctx->fd < 0 ) + { + ret = MBEDTLS_ERR_NET_SOCKET_FAILED; + continue; + } + + n = 1; + if( setsockopt( ctx->fd, SOL_SOCKET, SO_REUSEADDR, + (const char *) &n, sizeof( n ) ) != 0 ) + { + close( ctx->fd ); + ret = MBEDTLS_ERR_NET_SOCKET_FAILED; + continue; + } + + if( bind( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) != 0 ) + { + close( ctx->fd ); + ret = MBEDTLS_ERR_NET_BIND_FAILED; + continue; + } + + /* Listen only makes sense for TCP */ + if( proto == MBEDTLS_NET_PROTO_TCP ) + { + if( listen( ctx->fd, MBEDTLS_NET_LISTEN_BACKLOG ) != 0 ) + { + close( ctx->fd ); + ret = MBEDTLS_ERR_NET_LISTEN_FAILED; + continue; + } + } + + /* I we ever get there, it's a success */ + ret = 0; + break; + } + + freeaddrinfo( addr_list ); + + return( ret ); + +} + +#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ + !defined(EFI32) +/* + * Check if the requested operation would be blocking on a non-blocking socket + * and thus 'failed' with a negative return value. + */ +static int net_would_block( const mbedtls_net_context *ctx ) +{ + ((void) ctx); + return( WSAGetLastError() == WSAEWOULDBLOCK ); +} +#else +/* + * Check if the requested operation would be blocking on a non-blocking socket + * and thus 'failed' with a negative return value. + * + * Note: on a blocking socket this function always returns 0! + */ +static int net_would_block( const mbedtls_net_context *ctx ) +{ + /* + * Never return 'WOULD BLOCK' on a non-blocking socket + */ + if( ( fcntl( ctx->fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK ) + return( 0 ); + + switch( errno ) + { +#if defined EAGAIN + case EAGAIN: +#endif +#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN + case EWOULDBLOCK: +#endif + return( 1 ); + } + return( 0 ); +} +#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */ + +/* + * Accept a connection from a remote client + */ +int mbedtls_net_accept( mbedtls_net_context *bind_ctx, + mbedtls_net_context *client_ctx, + void *client_ip, size_t buf_size, size_t *ip_len ) +{ + int ret; + int type; + + struct sockaddr_storage client_addr; + +#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) || \ + defined(_SOCKLEN_T_DECLARED) || defined(__DEFINED_socklen_t) + socklen_t n = (socklen_t) sizeof( client_addr ); + socklen_t type_len = (socklen_t) sizeof( type ); +#else + int n = (int) sizeof( client_addr ); + int type_len = (int) sizeof( type ); +#endif + + /* Is this a TCP or UDP socket? */ + if( getsockopt( bind_ctx->fd, SOL_SOCKET, SO_TYPE, + (void *) &type, &type_len ) != 0 || + ( type != SOCK_STREAM && type != SOCK_DGRAM ) ) + { + return( MBEDTLS_ERR_NET_ACCEPT_FAILED ); + } + + if( type == SOCK_STREAM ) + { + /* TCP: actual accept() */ + ret = client_ctx->fd = (int) accept( bind_ctx->fd, + (struct sockaddr *) &client_addr, &n ); + } + else + { + /* UDP: wait for a message, but keep it in the queue */ + char buf[1] = { 0 }; + + ret = (int) recvfrom( bind_ctx->fd, buf, sizeof( buf ), MSG_PEEK, + (struct sockaddr *) &client_addr, &n ); + +#if defined(_WIN32) + if( ret == SOCKET_ERROR && + WSAGetLastError() == WSAEMSGSIZE ) + { + /* We know buf is too small, thanks, just peeking here */ + ret = 0; + } +#endif + } + + if( ret < 0 ) + { + if( net_would_block( bind_ctx ) != 0 ) + return( MBEDTLS_ERR_SSL_WANT_READ ); + + return( MBEDTLS_ERR_NET_ACCEPT_FAILED ); + } + + /* UDP: hijack the listening socket to communicate with the client, + * then bind a new socket to accept new connections */ + if( type != SOCK_STREAM ) + { + struct sockaddr_storage local_addr; + int one = 1; + + if( connect( bind_ctx->fd, (struct sockaddr *) &client_addr, n ) != 0 ) + return( MBEDTLS_ERR_NET_ACCEPT_FAILED ); + + client_ctx->fd = bind_ctx->fd; + bind_ctx->fd = -1; /* In case we exit early */ + + n = sizeof( struct sockaddr_storage ); + if( getsockname( client_ctx->fd, + (struct sockaddr *) &local_addr, &n ) != 0 || + ( bind_ctx->fd = (int) socket( local_addr.ss_family, + SOCK_DGRAM, IPPROTO_UDP ) ) < 0 || + setsockopt( bind_ctx->fd, SOL_SOCKET, SO_REUSEADDR, + (const char *) &one, sizeof( one ) ) != 0 ) + { + return( MBEDTLS_ERR_NET_SOCKET_FAILED ); + } + + if( bind( bind_ctx->fd, (struct sockaddr *) &local_addr, n ) != 0 ) + { + return( MBEDTLS_ERR_NET_BIND_FAILED ); + } + } + + if( client_ip != NULL ) + { + if( client_addr.ss_family == AF_INET ) + { + struct sockaddr_in *addr4 = (struct sockaddr_in *) &client_addr; + *ip_len = sizeof( addr4->sin_addr.s_addr ); + + if( buf_size < *ip_len ) + return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL ); + + memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len ); + } + else + { + struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) &client_addr; + *ip_len = sizeof( addr6->sin6_addr.s6_addr ); + + if( buf_size < *ip_len ) + return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL ); + + memcpy( client_ip, &addr6->sin6_addr.s6_addr, *ip_len); + } + } + + return( 0 ); +} + +/* + * Set the socket blocking or non-blocking + */ +int mbedtls_net_set_block( mbedtls_net_context *ctx ) +{ +#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ + !defined(EFI32) + u_long n = 0; + return( ioctlsocket( ctx->fd, FIONBIO, &n ) ); +#else + return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) & ~O_NONBLOCK ) ); +#endif +} + +int mbedtls_net_set_nonblock( mbedtls_net_context *ctx ) +{ +#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ + !defined(EFI32) + u_long n = 1; + return( ioctlsocket( ctx->fd, FIONBIO, &n ) ); +#else + return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) | O_NONBLOCK ) ); +#endif +} + +/* + * Portable usleep helper + */ +void mbedtls_net_usleep( unsigned long usec ) +{ +#if defined(_WIN32) + Sleep( ( usec + 999 ) / 1000 ); +#else + struct timeval tv; + tv.tv_sec = usec / 1000000; +#if defined(__unix__) || defined(__unix) || \ + ( defined(__APPLE__) && defined(__MACH__) ) + tv.tv_usec = (suseconds_t) usec % 1000000; +#else + tv.tv_usec = usec % 1000000; +#endif + select( 0, NULL, NULL, NULL, &tv ); +#endif +} + +/* + * Read at most 'len' characters + */ +int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len ) +{ + int ret; + int fd = ((mbedtls_net_context *) ctx)->fd; + + if( fd < 0 ) + return( MBEDTLS_ERR_NET_INVALID_CONTEXT ); + + ret = (int) read( fd, buf, len ); + + if( ret < 0 ) + { + if( net_would_block( ctx ) != 0 ) + return( MBEDTLS_ERR_SSL_WANT_READ ); + +#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ + !defined(EFI32) + if( WSAGetLastError() == WSAECONNRESET ) + return( MBEDTLS_ERR_NET_CONN_RESET ); +#else + if( errno == EPIPE || errno == ECONNRESET ) + return( MBEDTLS_ERR_NET_CONN_RESET ); + + if( errno == EINTR ) + return( MBEDTLS_ERR_SSL_WANT_READ ); +#endif + + return( MBEDTLS_ERR_NET_RECV_FAILED ); + } + + return( ret ); +} + +/* + * Read at most 'len' characters, blocking for at most 'timeout' ms + */ +int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, size_t len, + uint32_t timeout ) +{ + int ret; + struct timeval tv; + fd_set read_fds; + int fd = ((mbedtls_net_context *) ctx)->fd; + + if( fd < 0 ) + return( MBEDTLS_ERR_NET_INVALID_CONTEXT ); + + FD_ZERO( &read_fds ); + FD_SET( fd, &read_fds ); + + tv.tv_sec = timeout / 1000; + tv.tv_usec = ( timeout % 1000 ) * 1000; + + ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv ); + + /* Zero fds ready means we timed out */ + if( ret == 0 ) + return( MBEDTLS_ERR_SSL_TIMEOUT ); + + if( ret < 0 ) + { +#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ + !defined(EFI32) + if( WSAGetLastError() == WSAEINTR ) + return( MBEDTLS_ERR_SSL_WANT_READ ); +#else + if( errno == EINTR ) + return( MBEDTLS_ERR_SSL_WANT_READ ); +#endif + + return( MBEDTLS_ERR_NET_RECV_FAILED ); + } + + /* This call will not block */ + return( mbedtls_net_recv( ctx, buf, len ) ); +} + +/* + * Write at most 'len' characters + */ +int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len ) +{ + int ret; + int fd = ((mbedtls_net_context *) ctx)->fd; + + if( fd < 0 ) + return( MBEDTLS_ERR_NET_INVALID_CONTEXT ); + + ret = (int) write( fd, buf, len ); + + if( ret < 0 ) + { + if( net_would_block( ctx ) != 0 ) + return( MBEDTLS_ERR_SSL_WANT_WRITE ); + +#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ + !defined(EFI32) + if( WSAGetLastError() == WSAECONNRESET ) + return( MBEDTLS_ERR_NET_CONN_RESET ); +#else + if( errno == EPIPE || errno == ECONNRESET ) + return( MBEDTLS_ERR_NET_CONN_RESET ); + + if( errno == EINTR ) + return( MBEDTLS_ERR_SSL_WANT_WRITE ); +#endif + + return( MBEDTLS_ERR_NET_SEND_FAILED ); + } + + return( ret ); +} + +/* + * Gracefully close the connection + */ +void mbedtls_net_free( mbedtls_net_context *ctx ) +{ + if( ctx->fd == -1 ) + return; + + shutdown( ctx->fd, 2 ); + close( ctx->fd ); + + ctx->fd = -1; +} + +#endif /* MBEDTLS_NET_C */ diff --git a/mbedtls/oid.c b/mbedtls/oid.c new file mode 100644 index 0000000..f13826e --- /dev/null +++ b/mbedtls/oid.c @@ -0,0 +1,710 @@ +/** + * \file oid.c + * + * \brief Object Identifier (OID) database + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_OID_C) + +#include "mbedtls/oid.h" +#include "mbedtls/rsa.h" + +#include +#include + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#define mbedtls_snprintf snprintf +#endif + +#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) +#include "mbedtls/x509.h" +#endif + +/* + * Macro to automatically add the size of #define'd OIDs + */ +#define ADD_LEN(s) s, MBEDTLS_OID_SIZE(s) + +/* + * Macro to generate an internal function for oid_XXX_from_asn1() (used by + * the other functions) + */ +#define FN_OID_TYPED_FROM_ASN1( TYPE_T, NAME, LIST ) \ +static const TYPE_T * oid_ ## NAME ## _from_asn1( const mbedtls_asn1_buf *oid ) \ +{ \ + const TYPE_T *p = LIST; \ + const mbedtls_oid_descriptor_t *cur = (const mbedtls_oid_descriptor_t *) p; \ + if( p == NULL || oid == NULL ) return( NULL ); \ + while( cur->asn1 != NULL ) { \ + if( cur->asn1_len == oid->len && \ + memcmp( cur->asn1, oid->p, oid->len ) == 0 ) { \ + return( p ); \ + } \ + p++; \ + cur = (const mbedtls_oid_descriptor_t *) p; \ + } \ + return( NULL ); \ +} + +/* + * Macro to generate a function for retrieving a single attribute from the + * descriptor of an mbedtls_oid_descriptor_t wrapper. + */ +#define FN_OID_GET_DESCRIPTOR_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \ +int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \ +{ \ + const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \ + if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \ + *ATTR1 = data->descriptor.ATTR1; \ + return( 0 ); \ +} + +/* + * Macro to generate a function for retrieving a single attribute from an + * mbedtls_oid_descriptor_t wrapper. + */ +#define FN_OID_GET_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \ +int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \ +{ \ + const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \ + if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \ + *ATTR1 = data->ATTR1; \ + return( 0 ); \ +} + +/* + * Macro to generate a function for retrieving two attributes from an + * mbedtls_oid_descriptor_t wrapper. + */ +#define FN_OID_GET_ATTR2(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1, \ + ATTR2_TYPE, ATTR2) \ +int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1, ATTR2_TYPE * ATTR2 ) \ +{ \ + const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \ + if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \ + *ATTR1 = data->ATTR1; \ + *ATTR2 = data->ATTR2; \ + return( 0 ); \ +} + +/* + * Macro to generate a function for retrieving the OID based on a single + * attribute from a mbedtls_oid_descriptor_t wrapper. + */ +#define FN_OID_GET_OID_BY_ATTR1(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1) \ +int FN_NAME( ATTR1_TYPE ATTR1, const char **oid, size_t *olen ) \ +{ \ + const TYPE_T *cur = LIST; \ + while( cur->descriptor.asn1 != NULL ) { \ + if( cur->ATTR1 == ATTR1 ) { \ + *oid = cur->descriptor.asn1; \ + *olen = cur->descriptor.asn1_len; \ + return( 0 ); \ + } \ + cur++; \ + } \ + return( MBEDTLS_ERR_OID_NOT_FOUND ); \ +} + +/* + * Macro to generate a function for retrieving the OID based on two + * attributes from a mbedtls_oid_descriptor_t wrapper. + */ +#define FN_OID_GET_OID_BY_ATTR2(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1, \ + ATTR2_TYPE, ATTR2) \ +int FN_NAME( ATTR1_TYPE ATTR1, ATTR2_TYPE ATTR2, const char **oid , \ + size_t *olen ) \ +{ \ + const TYPE_T *cur = LIST; \ + while( cur->descriptor.asn1 != NULL ) { \ + if( cur->ATTR1 == ATTR1 && cur->ATTR2 == ATTR2 ) { \ + *oid = cur->descriptor.asn1; \ + *olen = cur->descriptor.asn1_len; \ + return( 0 ); \ + } \ + cur++; \ + } \ + return( MBEDTLS_ERR_OID_NOT_FOUND ); \ +} + +#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) +/* + * For X520 attribute types + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + const char *short_name; +} oid_x520_attr_t; + +static const oid_x520_attr_t oid_x520_attr_type[] = +{ + { + { ADD_LEN( MBEDTLS_OID_AT_CN ), "id-at-commonName", "Common Name" }, + "CN", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_COUNTRY ), "id-at-countryName", "Country" }, + "C", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_LOCALITY ), "id-at-locality", "Locality" }, + "L", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_STATE ), "id-at-state", "State" }, + "ST", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_ORGANIZATION ),"id-at-organizationName", "Organization" }, + "O", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_ORG_UNIT ), "id-at-organizationalUnitName", "Org Unit" }, + "OU", + }, + { + { ADD_LEN( MBEDTLS_OID_PKCS9_EMAIL ), "emailAddress", "E-mail address" }, + "emailAddress", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_SERIAL_NUMBER ),"id-at-serialNumber", "Serial number" }, + "serialNumber", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_POSTAL_ADDRESS ),"id-at-postalAddress", "Postal address" }, + "postalAddress", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_POSTAL_CODE ), "id-at-postalCode", "Postal code" }, + "postalCode", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_SUR_NAME ), "id-at-surName", "Surname" }, + "SN", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_GIVEN_NAME ), "id-at-givenName", "Given name" }, + "GN", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_INITIALS ), "id-at-initials", "Initials" }, + "initials", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_GENERATION_QUALIFIER ), "id-at-generationQualifier", "Generation qualifier" }, + "generationQualifier", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_TITLE ), "id-at-title", "Title" }, + "title", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_DN_QUALIFIER ),"id-at-dnQualifier", "Distinguished Name qualifier" }, + "dnQualifier", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_PSEUDONYM ), "id-at-pseudonym", "Pseudonym" }, + "pseudonym", + }, + { + { ADD_LEN( MBEDTLS_OID_DOMAIN_COMPONENT ), "id-domainComponent", "Domain component" }, + "DC", + }, + { + { ADD_LEN( MBEDTLS_OID_AT_UNIQUE_IDENTIFIER ), "id-at-uniqueIdentifier", "Unique Identifier" }, + "uniqueIdentifier", + }, + { + { NULL, 0, NULL, NULL }, + NULL, + } +}; + +FN_OID_TYPED_FROM_ASN1(oid_x520_attr_t, x520_attr, oid_x520_attr_type) +FN_OID_GET_ATTR1(mbedtls_oid_get_attr_short_name, oid_x520_attr_t, x520_attr, const char *, short_name) + +/* + * For X509 extensions + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + int ext_type; +} oid_x509_ext_t; + +static const oid_x509_ext_t oid_x509_ext[] = +{ + { + { ADD_LEN( MBEDTLS_OID_BASIC_CONSTRAINTS ), "id-ce-basicConstraints", "Basic Constraints" }, + MBEDTLS_X509_EXT_BASIC_CONSTRAINTS, + }, + { + { ADD_LEN( MBEDTLS_OID_KEY_USAGE ), "id-ce-keyUsage", "Key Usage" }, + MBEDTLS_X509_EXT_KEY_USAGE, + }, + { + { ADD_LEN( MBEDTLS_OID_EXTENDED_KEY_USAGE ), "id-ce-extKeyUsage", "Extended Key Usage" }, + MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE, + }, + { + { ADD_LEN( MBEDTLS_OID_SUBJECT_ALT_NAME ), "id-ce-subjectAltName", "Subject Alt Name" }, + MBEDTLS_X509_EXT_SUBJECT_ALT_NAME, + }, + { + { ADD_LEN( MBEDTLS_OID_NS_CERT_TYPE ), "id-netscape-certtype", "Netscape Certificate Type" }, + MBEDTLS_X509_EXT_NS_CERT_TYPE, + }, + { + { NULL, 0, NULL, NULL }, + 0, + }, +}; + +FN_OID_TYPED_FROM_ASN1(oid_x509_ext_t, x509_ext, oid_x509_ext) +FN_OID_GET_ATTR1(mbedtls_oid_get_x509_ext_type, oid_x509_ext_t, x509_ext, int, ext_type) + +static const mbedtls_oid_descriptor_t oid_ext_key_usage[] = +{ + { ADD_LEN( MBEDTLS_OID_SERVER_AUTH ), "id-kp-serverAuth", "TLS Web Server Authentication" }, + { ADD_LEN( MBEDTLS_OID_CLIENT_AUTH ), "id-kp-clientAuth", "TLS Web Client Authentication" }, + { ADD_LEN( MBEDTLS_OID_CODE_SIGNING ), "id-kp-codeSigning", "Code Signing" }, + { ADD_LEN( MBEDTLS_OID_EMAIL_PROTECTION ), "id-kp-emailProtection", "E-mail Protection" }, + { ADD_LEN( MBEDTLS_OID_TIME_STAMPING ), "id-kp-timeStamping", "Time Stamping" }, + { ADD_LEN( MBEDTLS_OID_OCSP_SIGNING ), "id-kp-OCSPSigning", "OCSP Signing" }, + { NULL, 0, NULL, NULL }, +}; + +FN_OID_TYPED_FROM_ASN1(mbedtls_oid_descriptor_t, ext_key_usage, oid_ext_key_usage) +FN_OID_GET_ATTR1(mbedtls_oid_get_extended_key_usage, mbedtls_oid_descriptor_t, ext_key_usage, const char *, description) +#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */ + +#if defined(MBEDTLS_MD_C) +/* + * For SignatureAlgorithmIdentifier + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + mbedtls_md_type_t md_alg; + mbedtls_pk_type_t pk_alg; +} oid_sig_alg_t; + +static const oid_sig_alg_t oid_sig_alg[] = +{ +#if defined(MBEDTLS_RSA_C) +#if defined(MBEDTLS_MD2_C) + { + { ADD_LEN( MBEDTLS_OID_PKCS1_MD2 ), "md2WithRSAEncryption", "RSA with MD2" }, + MBEDTLS_MD_MD2, MBEDTLS_PK_RSA, + }, +#endif /* MBEDTLS_MD2_C */ +#if defined(MBEDTLS_MD4_C) + { + { ADD_LEN( MBEDTLS_OID_PKCS1_MD4 ), "md4WithRSAEncryption", "RSA with MD4" }, + MBEDTLS_MD_MD4, MBEDTLS_PK_RSA, + }, +#endif /* MBEDTLS_MD4_C */ +#if defined(MBEDTLS_MD5_C) + { + { ADD_LEN( MBEDTLS_OID_PKCS1_MD5 ), "md5WithRSAEncryption", "RSA with MD5" }, + MBEDTLS_MD_MD5, MBEDTLS_PK_RSA, + }, +#endif /* MBEDTLS_MD5_C */ +#if defined(MBEDTLS_SHA1_C) + { + { ADD_LEN( MBEDTLS_OID_PKCS1_SHA1 ), "sha-1WithRSAEncryption", "RSA with SHA1" }, + MBEDTLS_MD_SHA1, MBEDTLS_PK_RSA, + }, +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) + { + { ADD_LEN( MBEDTLS_OID_PKCS1_SHA224 ), "sha224WithRSAEncryption", "RSA with SHA-224" }, + MBEDTLS_MD_SHA224, MBEDTLS_PK_RSA, + }, + { + { ADD_LEN( MBEDTLS_OID_PKCS1_SHA256 ), "sha256WithRSAEncryption", "RSA with SHA-256" }, + MBEDTLS_MD_SHA256, MBEDTLS_PK_RSA, + }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { + { ADD_LEN( MBEDTLS_OID_PKCS1_SHA384 ), "sha384WithRSAEncryption", "RSA with SHA-384" }, + MBEDTLS_MD_SHA384, MBEDTLS_PK_RSA, + }, + { + { ADD_LEN( MBEDTLS_OID_PKCS1_SHA512 ), "sha512WithRSAEncryption", "RSA with SHA-512" }, + MBEDTLS_MD_SHA512, MBEDTLS_PK_RSA, + }, +#endif /* MBEDTLS_SHA512_C */ +#if defined(MBEDTLS_SHA1_C) + { + { ADD_LEN( MBEDTLS_OID_RSA_SHA_OBS ), "sha-1WithRSAEncryption", "RSA with SHA1" }, + MBEDTLS_MD_SHA1, MBEDTLS_PK_RSA, + }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_RSA_C */ +#if defined(MBEDTLS_ECDSA_C) +#if defined(MBEDTLS_SHA1_C) + { + { ADD_LEN( MBEDTLS_OID_ECDSA_SHA1 ), "ecdsa-with-SHA1", "ECDSA with SHA1" }, + MBEDTLS_MD_SHA1, MBEDTLS_PK_ECDSA, + }, +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) + { + { ADD_LEN( MBEDTLS_OID_ECDSA_SHA224 ), "ecdsa-with-SHA224", "ECDSA with SHA224" }, + MBEDTLS_MD_SHA224, MBEDTLS_PK_ECDSA, + }, + { + { ADD_LEN( MBEDTLS_OID_ECDSA_SHA256 ), "ecdsa-with-SHA256", "ECDSA with SHA256" }, + MBEDTLS_MD_SHA256, MBEDTLS_PK_ECDSA, + }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { + { ADD_LEN( MBEDTLS_OID_ECDSA_SHA384 ), "ecdsa-with-SHA384", "ECDSA with SHA384" }, + MBEDTLS_MD_SHA384, MBEDTLS_PK_ECDSA, + }, + { + { ADD_LEN( MBEDTLS_OID_ECDSA_SHA512 ), "ecdsa-with-SHA512", "ECDSA with SHA512" }, + MBEDTLS_MD_SHA512, MBEDTLS_PK_ECDSA, + }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_ECDSA_C */ +#if defined(MBEDTLS_RSA_C) + { + { ADD_LEN( MBEDTLS_OID_RSASSA_PSS ), "RSASSA-PSS", "RSASSA-PSS" }, + MBEDTLS_MD_NONE, MBEDTLS_PK_RSASSA_PSS, + }, +#endif /* MBEDTLS_RSA_C */ + { + { NULL, 0, NULL, NULL }, + MBEDTLS_MD_NONE, MBEDTLS_PK_NONE, + }, +}; + +FN_OID_TYPED_FROM_ASN1(oid_sig_alg_t, sig_alg, oid_sig_alg) +FN_OID_GET_DESCRIPTOR_ATTR1(mbedtls_oid_get_sig_alg_desc, oid_sig_alg_t, sig_alg, const char *, description) +FN_OID_GET_ATTR2(mbedtls_oid_get_sig_alg, oid_sig_alg_t, sig_alg, mbedtls_md_type_t, md_alg, mbedtls_pk_type_t, pk_alg) +FN_OID_GET_OID_BY_ATTR2(mbedtls_oid_get_oid_by_sig_alg, oid_sig_alg_t, oid_sig_alg, mbedtls_pk_type_t, pk_alg, mbedtls_md_type_t, md_alg) +#endif /* MBEDTLS_MD_C */ + +/* + * For PublicKeyInfo (PKCS1, RFC 5480) + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + mbedtls_pk_type_t pk_alg; +} oid_pk_alg_t; + +static const oid_pk_alg_t oid_pk_alg[] = +{ + { + { ADD_LEN( MBEDTLS_OID_PKCS1_RSA ), "rsaEncryption", "RSA" }, + MBEDTLS_PK_RSA, + }, + { + { ADD_LEN( MBEDTLS_OID_EC_ALG_UNRESTRICTED ), "id-ecPublicKey", "Generic EC key" }, + MBEDTLS_PK_ECKEY, + }, + { + { ADD_LEN( MBEDTLS_OID_EC_ALG_ECDH ), "id-ecDH", "EC key for ECDH" }, + MBEDTLS_PK_ECKEY_DH, + }, + { + { NULL, 0, NULL, NULL }, + MBEDTLS_PK_NONE, + }, +}; + +FN_OID_TYPED_FROM_ASN1(oid_pk_alg_t, pk_alg, oid_pk_alg) +FN_OID_GET_ATTR1(mbedtls_oid_get_pk_alg, oid_pk_alg_t, pk_alg, mbedtls_pk_type_t, pk_alg) +FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_pk_alg, oid_pk_alg_t, oid_pk_alg, mbedtls_pk_type_t, pk_alg) + +#if defined(MBEDTLS_ECP_C) +/* + * For namedCurve (RFC 5480) + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + mbedtls_ecp_group_id grp_id; +} oid_ecp_grp_t; + +static const oid_ecp_grp_t oid_ecp_grp[] = +{ +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP192R1 ), "secp192r1", "secp192r1" }, + MBEDTLS_ECP_DP_SECP192R1, + }, +#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP224R1 ), "secp224r1", "secp224r1" }, + MBEDTLS_ECP_DP_SECP224R1, + }, +#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP256R1 ), "secp256r1", "secp256r1" }, + MBEDTLS_ECP_DP_SECP256R1, + }, +#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP384R1 ), "secp384r1", "secp384r1" }, + MBEDTLS_ECP_DP_SECP384R1, + }, +#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP521R1 ), "secp521r1", "secp521r1" }, + MBEDTLS_ECP_DP_SECP521R1, + }, +#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP192K1 ), "secp192k1", "secp192k1" }, + MBEDTLS_ECP_DP_SECP192K1, + }, +#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP224K1 ), "secp224k1", "secp224k1" }, + MBEDTLS_ECP_DP_SECP224K1, + }, +#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_SECP256K1 ), "secp256k1", "secp256k1" }, + MBEDTLS_ECP_DP_SECP256K1, + }, +#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_BP256R1 ), "brainpoolP256r1","brainpool256r1" }, + MBEDTLS_ECP_DP_BP256R1, + }, +#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_BP384R1 ), "brainpoolP384r1","brainpool384r1" }, + MBEDTLS_ECP_DP_BP384R1, + }, +#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) + { + { ADD_LEN( MBEDTLS_OID_EC_GRP_BP512R1 ), "brainpoolP512r1","brainpool512r1" }, + MBEDTLS_ECP_DP_BP512R1, + }, +#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */ + { + { NULL, 0, NULL, NULL }, + MBEDTLS_ECP_DP_NONE, + }, +}; + +FN_OID_TYPED_FROM_ASN1(oid_ecp_grp_t, grp_id, oid_ecp_grp) +FN_OID_GET_ATTR1(mbedtls_oid_get_ec_grp, oid_ecp_grp_t, grp_id, mbedtls_ecp_group_id, grp_id) +FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_ec_grp, oid_ecp_grp_t, oid_ecp_grp, mbedtls_ecp_group_id, grp_id) +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_CIPHER_C) +/* + * For PKCS#5 PBES2 encryption algorithm + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + mbedtls_cipher_type_t cipher_alg; +} oid_cipher_alg_t; + +static const oid_cipher_alg_t oid_cipher_alg[] = +{ + { + { ADD_LEN( MBEDTLS_OID_DES_CBC ), "desCBC", "DES-CBC" }, + MBEDTLS_CIPHER_DES_CBC, + }, + { + { ADD_LEN( MBEDTLS_OID_DES_EDE3_CBC ), "des-ede3-cbc", "DES-EDE3-CBC" }, + MBEDTLS_CIPHER_DES_EDE3_CBC, + }, + { + { NULL, 0, NULL, NULL }, + MBEDTLS_CIPHER_NONE, + }, +}; + +FN_OID_TYPED_FROM_ASN1(oid_cipher_alg_t, cipher_alg, oid_cipher_alg) +FN_OID_GET_ATTR1(mbedtls_oid_get_cipher_alg, oid_cipher_alg_t, cipher_alg, mbedtls_cipher_type_t, cipher_alg) +#endif /* MBEDTLS_CIPHER_C */ + +#if defined(MBEDTLS_MD_C) +/* + * For digestAlgorithm + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + mbedtls_md_type_t md_alg; +} oid_md_alg_t; + +static const oid_md_alg_t oid_md_alg[] = +{ +#if defined(MBEDTLS_MD2_C) + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD2 ), "id-md2", "MD2" }, + MBEDTLS_MD_MD2, + }, +#endif /* MBEDTLS_MD2_C */ +#if defined(MBEDTLS_MD4_C) + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD4 ), "id-md4", "MD4" }, + MBEDTLS_MD_MD4, + }, +#endif /* MBEDTLS_MD4_C */ +#if defined(MBEDTLS_MD5_C) + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD5 ), "id-md5", "MD5" }, + MBEDTLS_MD_MD5, + }, +#endif /* MBEDTLS_MD5_C */ +#if defined(MBEDTLS_SHA1_C) + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA1 ), "id-sha1", "SHA-1" }, + MBEDTLS_MD_SHA1, + }, +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA224 ), "id-sha224", "SHA-224" }, + MBEDTLS_MD_SHA224, + }, + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA256 ), "id-sha256", "SHA-256" }, + MBEDTLS_MD_SHA256, + }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA384 ), "id-sha384", "SHA-384" }, + MBEDTLS_MD_SHA384, + }, + { + { ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA512 ), "id-sha512", "SHA-512" }, + MBEDTLS_MD_SHA512, + }, +#endif /* MBEDTLS_SHA512_C */ + { + { NULL, 0, NULL, NULL }, + MBEDTLS_MD_NONE, + }, +}; + +FN_OID_TYPED_FROM_ASN1(oid_md_alg_t, md_alg, oid_md_alg) +FN_OID_GET_ATTR1(mbedtls_oid_get_md_alg, oid_md_alg_t, md_alg, mbedtls_md_type_t, md_alg) +FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_md, oid_md_alg_t, oid_md_alg, mbedtls_md_type_t, md_alg) +#endif /* MBEDTLS_MD_C */ + +#if defined(MBEDTLS_PKCS12_C) +/* + * For PKCS#12 PBEs + */ +typedef struct { + mbedtls_oid_descriptor_t descriptor; + mbedtls_md_type_t md_alg; + mbedtls_cipher_type_t cipher_alg; +} oid_pkcs12_pbe_alg_t; + +static const oid_pkcs12_pbe_alg_t oid_pkcs12_pbe_alg[] = +{ + { + { ADD_LEN( MBEDTLS_OID_PKCS12_PBE_SHA1_DES3_EDE_CBC ), "pbeWithSHAAnd3-KeyTripleDES-CBC", "PBE with SHA1 and 3-Key 3DES" }, + MBEDTLS_MD_SHA1, MBEDTLS_CIPHER_DES_EDE3_CBC, + }, + { + { ADD_LEN( MBEDTLS_OID_PKCS12_PBE_SHA1_DES2_EDE_CBC ), "pbeWithSHAAnd2-KeyTripleDES-CBC", "PBE with SHA1 and 2-Key 3DES" }, + MBEDTLS_MD_SHA1, MBEDTLS_CIPHER_DES_EDE_CBC, + }, + { + { NULL, 0, NULL, NULL }, + MBEDTLS_MD_NONE, MBEDTLS_CIPHER_NONE, + }, +}; + +FN_OID_TYPED_FROM_ASN1(oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, oid_pkcs12_pbe_alg) +FN_OID_GET_ATTR2(mbedtls_oid_get_pkcs12_pbe_alg, oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, mbedtls_md_type_t, md_alg, mbedtls_cipher_type_t, cipher_alg) +#endif /* MBEDTLS_PKCS12_C */ + +#define OID_SAFE_SNPRINTF \ + do { \ + if( ret < 0 || (size_t) ret >= n ) \ + return( MBEDTLS_ERR_OID_BUF_TOO_SMALL ); \ + \ + n -= (size_t) ret; \ + p += (size_t) ret; \ + } while( 0 ) + +/* Return the x.y.z.... style numeric string for the given OID */ +int mbedtls_oid_get_numeric_string( char *buf, size_t size, + const mbedtls_asn1_buf *oid ) +{ + int ret; + size_t i, n; + unsigned int value; + char *p; + + p = buf; + n = size; + + /* First byte contains first two dots */ + if( oid->len > 0 ) + { + ret = mbedtls_snprintf( p, n, "%d.%d", oid->p[0] / 40, oid->p[0] % 40 ); + OID_SAFE_SNPRINTF; + } + + value = 0; + for( i = 1; i < oid->len; i++ ) + { + /* Prevent overflow in value. */ + if( ( ( value << 7 ) >> 7 ) != value ) + return( MBEDTLS_ERR_OID_BUF_TOO_SMALL ); + + value <<= 7; + value += oid->p[i] & 0x7F; + + if( !( oid->p[i] & 0x80 ) ) + { + /* Last byte */ + ret = mbedtls_snprintf( p, n, ".%d", value ); + OID_SAFE_SNPRINTF; + value = 0; + } + } + + return( (int) ( size - n ) ); +} + +#endif /* MBEDTLS_OID_C */ diff --git a/mbedtls/padlock.c b/mbedtls/padlock.c new file mode 100644 index 0000000..b85ff9c --- /dev/null +++ b/mbedtls/padlock.c @@ -0,0 +1,170 @@ +/* + * VIA PadLock support functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * This implementation is based on the VIA PadLock Programming Guide: + * + * http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/ + * programming_guide.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PADLOCK_C) + +#include "mbedtls/padlock.h" + +#include + +#ifndef asm +#define asm __asm +#endif + +#if defined(MBEDTLS_HAVE_X86) + +/* + * PadLock detection routine + */ +int mbedtls_padlock_has_support( int feature ) +{ + static int flags = -1; + int ebx = 0, edx = 0; + + if( flags == -1 ) + { + asm( "movl %%ebx, %0 \n\t" + "movl $0xC0000000, %%eax \n\t" + "cpuid \n\t" + "cmpl $0xC0000001, %%eax \n\t" + "movl $0, %%edx \n\t" + "jb unsupported \n\t" + "movl $0xC0000001, %%eax \n\t" + "cpuid \n\t" + "unsupported: \n\t" + "movl %%edx, %1 \n\t" + "movl %2, %%ebx \n\t" + : "=m" (ebx), "=m" (edx) + : "m" (ebx) + : "eax", "ecx", "edx" ); + + flags = edx; + } + + return( flags & feature ); +} + +/* + * PadLock AES-ECB block en(de)cryption + */ +int mbedtls_padlock_xcryptecb( mbedtls_aes_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16] ) +{ + int ebx = 0; + uint32_t *rk; + uint32_t *blk; + uint32_t *ctrl; + unsigned char buf[256]; + + rk = ctx->rk; + blk = MBEDTLS_PADLOCK_ALIGN16( buf ); + memcpy( blk, input, 16 ); + + ctrl = blk + 4; + *ctrl = 0x80 | ctx->nr | ( ( ctx->nr + ( mode^1 ) - 10 ) << 9 ); + + asm( "pushfl \n\t" + "popfl \n\t" + "movl %%ebx, %0 \n\t" + "movl $1, %%ecx \n\t" + "movl %2, %%edx \n\t" + "movl %3, %%ebx \n\t" + "movl %4, %%esi \n\t" + "movl %4, %%edi \n\t" + ".byte 0xf3,0x0f,0xa7,0xc8 \n\t" + "movl %1, %%ebx \n\t" + : "=m" (ebx) + : "m" (ebx), "m" (ctrl), "m" (rk), "m" (blk) + : "memory", "ecx", "edx", "esi", "edi" ); + + memcpy( output, blk, 16 ); + + return( 0 ); +} + +/* + * PadLock AES-CBC buffer en(de)cryption + */ +int mbedtls_padlock_xcryptcbc( mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output ) +{ + int ebx = 0; + size_t count; + uint32_t *rk; + uint32_t *iw; + uint32_t *ctrl; + unsigned char buf[256]; + + if( ( (long) input & 15 ) != 0 || + ( (long) output & 15 ) != 0 ) + return( MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED ); + + rk = ctx->rk; + iw = MBEDTLS_PADLOCK_ALIGN16( buf ); + memcpy( iw, iv, 16 ); + + ctrl = iw + 4; + *ctrl = 0x80 | ctx->nr | ( ( ctx->nr + ( mode ^ 1 ) - 10 ) << 9 ); + + count = ( length + 15 ) >> 4; + + asm( "pushfl \n\t" + "popfl \n\t" + "movl %%ebx, %0 \n\t" + "movl %2, %%ecx \n\t" + "movl %3, %%edx \n\t" + "movl %4, %%ebx \n\t" + "movl %5, %%esi \n\t" + "movl %6, %%edi \n\t" + "movl %7, %%eax \n\t" + ".byte 0xf3,0x0f,0xa7,0xd0 \n\t" + "movl %1, %%ebx \n\t" + : "=m" (ebx) + : "m" (ebx), "m" (count), "m" (ctrl), + "m" (rk), "m" (input), "m" (output), "m" (iw) + : "memory", "eax", "ecx", "edx", "esi", "edi" ); + + memcpy( iv, iw, 16 ); + + return( 0 ); +} + +#endif /* MBEDTLS_HAVE_X86 */ + +#endif /* MBEDTLS_PADLOCK_C */ diff --git a/mbedtls/pem.c b/mbedtls/pem.c new file mode 100644 index 0000000..1ee3966 --- /dev/null +++ b/mbedtls/pem.c @@ -0,0 +1,447 @@ +/* + * Privacy Enhanced Mail (PEM) decoding + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C) + +#include "mbedtls/pem.h" +#include "mbedtls/base64.h" +#include "mbedtls/des.h" +#include "mbedtls/aes.h" +#include "mbedtls/md5.h" +#include "mbedtls/cipher.h" + +#include + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +#if defined(MBEDTLS_PEM_PARSE_C) +void mbedtls_pem_init( mbedtls_pem_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_pem_context ) ); +} + +#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \ + ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) ) +/* + * Read a 16-byte hex string and convert it to binary + */ +static int pem_get_iv( const unsigned char *s, unsigned char *iv, + size_t iv_len ) +{ + size_t i, j, k; + + memset( iv, 0, iv_len ); + + for( i = 0; i < iv_len * 2; i++, s++ ) + { + if( *s >= '0' && *s <= '9' ) j = *s - '0'; else + if( *s >= 'A' && *s <= 'F' ) j = *s - '7'; else + if( *s >= 'a' && *s <= 'f' ) j = *s - 'W'; else + return( MBEDTLS_ERR_PEM_INVALID_ENC_IV ); + + k = ( ( i & 1 ) != 0 ) ? j : j << 4; + + iv[i >> 1] = (unsigned char)( iv[i >> 1] | k ); + } + + return( 0 ); +} + +static void pem_pbkdf1( unsigned char *key, size_t keylen, + unsigned char *iv, + const unsigned char *pwd, size_t pwdlen ) +{ + mbedtls_md5_context md5_ctx; + unsigned char md5sum[16]; + size_t use_len; + + mbedtls_md5_init( &md5_ctx ); + + /* + * key[ 0..15] = MD5(pwd || IV) + */ + mbedtls_md5_starts( &md5_ctx ); + mbedtls_md5_update( &md5_ctx, pwd, pwdlen ); + mbedtls_md5_update( &md5_ctx, iv, 8 ); + mbedtls_md5_finish( &md5_ctx, md5sum ); + + if( keylen <= 16 ) + { + memcpy( key, md5sum, keylen ); + + mbedtls_md5_free( &md5_ctx ); + mbedtls_zeroize( md5sum, 16 ); + return; + } + + memcpy( key, md5sum, 16 ); + + /* + * key[16..23] = MD5(key[ 0..15] || pwd || IV]) + */ + mbedtls_md5_starts( &md5_ctx ); + mbedtls_md5_update( &md5_ctx, md5sum, 16 ); + mbedtls_md5_update( &md5_ctx, pwd, pwdlen ); + mbedtls_md5_update( &md5_ctx, iv, 8 ); + mbedtls_md5_finish( &md5_ctx, md5sum ); + + use_len = 16; + if( keylen < 32 ) + use_len = keylen - 16; + + memcpy( key + 16, md5sum, use_len ); + + mbedtls_md5_free( &md5_ctx ); + mbedtls_zeroize( md5sum, 16 ); +} + +#if defined(MBEDTLS_DES_C) +/* + * Decrypt with DES-CBC, using PBKDF1 for key derivation + */ +static void pem_des_decrypt( unsigned char des_iv[8], + unsigned char *buf, size_t buflen, + const unsigned char *pwd, size_t pwdlen ) +{ + mbedtls_des_context des_ctx; + unsigned char des_key[8]; + + mbedtls_des_init( &des_ctx ); + + pem_pbkdf1( des_key, 8, des_iv, pwd, pwdlen ); + + mbedtls_des_setkey_dec( &des_ctx, des_key ); + mbedtls_des_crypt_cbc( &des_ctx, MBEDTLS_DES_DECRYPT, buflen, + des_iv, buf, buf ); + + mbedtls_des_free( &des_ctx ); + mbedtls_zeroize( des_key, 8 ); +} + +/* + * Decrypt with 3DES-CBC, using PBKDF1 for key derivation + */ +static void pem_des3_decrypt( unsigned char des3_iv[8], + unsigned char *buf, size_t buflen, + const unsigned char *pwd, size_t pwdlen ) +{ + mbedtls_des3_context des3_ctx; + unsigned char des3_key[24]; + + mbedtls_des3_init( &des3_ctx ); + + pem_pbkdf1( des3_key, 24, des3_iv, pwd, pwdlen ); + + mbedtls_des3_set3key_dec( &des3_ctx, des3_key ); + mbedtls_des3_crypt_cbc( &des3_ctx, MBEDTLS_DES_DECRYPT, buflen, + des3_iv, buf, buf ); + + mbedtls_des3_free( &des3_ctx ); + mbedtls_zeroize( des3_key, 24 ); +} +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_AES_C) +/* + * Decrypt with AES-XXX-CBC, using PBKDF1 for key derivation + */ +static void pem_aes_decrypt( unsigned char aes_iv[16], unsigned int keylen, + unsigned char *buf, size_t buflen, + const unsigned char *pwd, size_t pwdlen ) +{ + mbedtls_aes_context aes_ctx; + unsigned char aes_key[32]; + + mbedtls_aes_init( &aes_ctx ); + + pem_pbkdf1( aes_key, keylen, aes_iv, pwd, pwdlen ); + + mbedtls_aes_setkey_dec( &aes_ctx, aes_key, keylen * 8 ); + mbedtls_aes_crypt_cbc( &aes_ctx, MBEDTLS_AES_DECRYPT, buflen, + aes_iv, buf, buf ); + + mbedtls_aes_free( &aes_ctx ); + mbedtls_zeroize( aes_key, keylen ); +} +#endif /* MBEDTLS_AES_C */ + +#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC && + ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */ + +int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer, + const unsigned char *data, const unsigned char *pwd, + size_t pwdlen, size_t *use_len ) +{ + int ret, enc; + size_t len; + unsigned char *buf; + const unsigned char *s1, *s2, *end; +#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \ + ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) ) + unsigned char pem_iv[16]; + mbedtls_cipher_type_t enc_alg = MBEDTLS_CIPHER_NONE; +#else + ((void) pwd); + ((void) pwdlen); +#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC && + ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */ + + if( ctx == NULL ) + return( MBEDTLS_ERR_PEM_BAD_INPUT_DATA ); + + s1 = (unsigned char *) strstr( (const char *) data, header ); + + if( s1 == NULL ) + return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ); + + s2 = (unsigned char *) strstr( (const char *) data, footer ); + + if( s2 == NULL || s2 <= s1 ) + return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ); + + s1 += strlen( header ); + if( *s1 == ' ' ) s1++; + if( *s1 == '\r' ) s1++; + if( *s1 == '\n' ) s1++; + else return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ); + + end = s2; + end += strlen( footer ); + if( *end == ' ' ) end++; + if( *end == '\r' ) end++; + if( *end == '\n' ) end++; + *use_len = end - data; + + enc = 0; + + if( memcmp( s1, "Proc-Type: 4,ENCRYPTED", 22 ) == 0 ) + { +#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \ + ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) ) + enc++; + + s1 += 22; + if( *s1 == '\r' ) s1++; + if( *s1 == '\n' ) s1++; + else return( MBEDTLS_ERR_PEM_INVALID_DATA ); + + +#if defined(MBEDTLS_DES_C) + if( memcmp( s1, "DEK-Info: DES-EDE3-CBC,", 23 ) == 0 ) + { + enc_alg = MBEDTLS_CIPHER_DES_EDE3_CBC; + + s1 += 23; + if( pem_get_iv( s1, pem_iv, 8 ) != 0 ) + return( MBEDTLS_ERR_PEM_INVALID_ENC_IV ); + + s1 += 16; + } + else if( memcmp( s1, "DEK-Info: DES-CBC,", 18 ) == 0 ) + { + enc_alg = MBEDTLS_CIPHER_DES_CBC; + + s1 += 18; + if( pem_get_iv( s1, pem_iv, 8) != 0 ) + return( MBEDTLS_ERR_PEM_INVALID_ENC_IV ); + + s1 += 16; + } +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_AES_C) + if( memcmp( s1, "DEK-Info: AES-", 14 ) == 0 ) + { + if( memcmp( s1, "DEK-Info: AES-128-CBC,", 22 ) == 0 ) + enc_alg = MBEDTLS_CIPHER_AES_128_CBC; + else if( memcmp( s1, "DEK-Info: AES-192-CBC,", 22 ) == 0 ) + enc_alg = MBEDTLS_CIPHER_AES_192_CBC; + else if( memcmp( s1, "DEK-Info: AES-256-CBC,", 22 ) == 0 ) + enc_alg = MBEDTLS_CIPHER_AES_256_CBC; + else + return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG ); + + s1 += 22; + if( pem_get_iv( s1, pem_iv, 16 ) != 0 ) + return( MBEDTLS_ERR_PEM_INVALID_ENC_IV ); + + s1 += 32; + } +#endif /* MBEDTLS_AES_C */ + + if( enc_alg == MBEDTLS_CIPHER_NONE ) + return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG ); + + if( *s1 == '\r' ) s1++; + if( *s1 == '\n' ) s1++; + else return( MBEDTLS_ERR_PEM_INVALID_DATA ); +#else + return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE ); +#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC && + ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */ + } + + if( s1 == s2 ) + return( MBEDTLS_ERR_PEM_INVALID_DATA ); + + ret = mbedtls_base64_decode( NULL, 0, &len, s1, s2 - s1 ); + + if( ret == MBEDTLS_ERR_BASE64_INVALID_CHARACTER ) + return( MBEDTLS_ERR_PEM_INVALID_DATA + ret ); + + if( ( buf = mbedtls_calloc( 1, len ) ) == NULL ) + return( MBEDTLS_ERR_PEM_ALLOC_FAILED ); + + if( ( ret = mbedtls_base64_decode( buf, len, &len, s1, s2 - s1 ) ) != 0 ) + { + mbedtls_free( buf ); + return( MBEDTLS_ERR_PEM_INVALID_DATA + ret ); + } + + if( enc != 0 ) + { +#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \ + ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) ) + if( pwd == NULL ) + { + mbedtls_free( buf ); + return( MBEDTLS_ERR_PEM_PASSWORD_REQUIRED ); + } + +#if defined(MBEDTLS_DES_C) + if( enc_alg == MBEDTLS_CIPHER_DES_EDE3_CBC ) + pem_des3_decrypt( pem_iv, buf, len, pwd, pwdlen ); + else if( enc_alg == MBEDTLS_CIPHER_DES_CBC ) + pem_des_decrypt( pem_iv, buf, len, pwd, pwdlen ); +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_AES_C) + if( enc_alg == MBEDTLS_CIPHER_AES_128_CBC ) + pem_aes_decrypt( pem_iv, 16, buf, len, pwd, pwdlen ); + else if( enc_alg == MBEDTLS_CIPHER_AES_192_CBC ) + pem_aes_decrypt( pem_iv, 24, buf, len, pwd, pwdlen ); + else if( enc_alg == MBEDTLS_CIPHER_AES_256_CBC ) + pem_aes_decrypt( pem_iv, 32, buf, len, pwd, pwdlen ); +#endif /* MBEDTLS_AES_C */ + + /* + * The result will be ASN.1 starting with a SEQUENCE tag, with 1 to 3 + * length bytes (allow 4 to be sure) in all known use cases. + * + * Use that as heurisitic to try detecting password mismatchs. + */ + if( len <= 2 || buf[0] != 0x30 || buf[1] > 0x83 ) + { + mbedtls_free( buf ); + return( MBEDTLS_ERR_PEM_PASSWORD_MISMATCH ); + } +#else + mbedtls_free( buf ); + return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE ); +#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC && + ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */ + } + + ctx->buf = buf; + ctx->buflen = len; + + return( 0 ); +} + +void mbedtls_pem_free( mbedtls_pem_context *ctx ) +{ + mbedtls_free( ctx->buf ); + mbedtls_free( ctx->info ); + + mbedtls_zeroize( ctx, sizeof( mbedtls_pem_context ) ); +} +#endif /* MBEDTLS_PEM_PARSE_C */ + +#if defined(MBEDTLS_PEM_WRITE_C) +int mbedtls_pem_write_buffer( const char *header, const char *footer, + const unsigned char *der_data, size_t der_len, + unsigned char *buf, size_t buf_len, size_t *olen ) +{ + int ret; + unsigned char *encode_buf, *c, *p = buf; + size_t len = 0, use_len, add_len = 0; + + mbedtls_base64_encode( NULL, 0, &use_len, der_data, der_len ); + add_len = strlen( header ) + strlen( footer ) + ( use_len / 64 ) + 1; + + if( use_len + add_len > buf_len ) + { + *olen = use_len + add_len; + return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL ); + } + + if( ( encode_buf = mbedtls_calloc( 1, use_len ) ) == NULL ) + return( MBEDTLS_ERR_PEM_ALLOC_FAILED ); + + if( ( ret = mbedtls_base64_encode( encode_buf, use_len, &use_len, der_data, + der_len ) ) != 0 ) + { + mbedtls_free( encode_buf ); + return( ret ); + } + + memcpy( p, header, strlen( header ) ); + p += strlen( header ); + c = encode_buf; + + while( use_len ) + { + len = ( use_len > 64 ) ? 64 : use_len; + memcpy( p, c, len ); + use_len -= len; + p += len; + c += len; + *p++ = '\n'; + } + + memcpy( p, footer, strlen( footer ) ); + p += strlen( footer ); + + *p++ = '\0'; + *olen = p - buf; + + mbedtls_free( encode_buf ); + return( 0 ); +} +#endif /* MBEDTLS_PEM_WRITE_C */ +#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */ diff --git a/mbedtls/pk.c b/mbedtls/pk.c new file mode 100644 index 0000000..10bd0a5 --- /dev/null +++ b/mbedtls/pk.c @@ -0,0 +1,374 @@ +/* + * Public Key abstraction layer + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PK_C) +#include "mbedtls/pk.h" +#include "mbedtls/pk_internal.h" + +#if defined(MBEDTLS_RSA_C) +#include "mbedtls/rsa.h" +#endif +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif +#if defined(MBEDTLS_ECDSA_C) +#include "mbedtls/ecdsa.h" +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Initialise a mbedtls_pk_context + */ +void mbedtls_pk_init( mbedtls_pk_context *ctx ) +{ + if( ctx == NULL ) + return; + + ctx->pk_info = NULL; + ctx->pk_ctx = NULL; +} + +/* + * Free (the components of) a mbedtls_pk_context + */ +void mbedtls_pk_free( mbedtls_pk_context *ctx ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return; + + ctx->pk_info->ctx_free_func( ctx->pk_ctx ); + + mbedtls_zeroize( ctx, sizeof( mbedtls_pk_context ) ); +} + +/* + * Get pk_info structure from type + */ +const mbedtls_pk_info_t * mbedtls_pk_info_from_type( mbedtls_pk_type_t pk_type ) +{ + switch( pk_type ) { +#if defined(MBEDTLS_RSA_C) + case MBEDTLS_PK_RSA: + return( &mbedtls_rsa_info ); +#endif +#if defined(MBEDTLS_ECP_C) + case MBEDTLS_PK_ECKEY: + return( &mbedtls_eckey_info ); + case MBEDTLS_PK_ECKEY_DH: + return( &mbedtls_eckeydh_info ); +#endif +#if defined(MBEDTLS_ECDSA_C) + case MBEDTLS_PK_ECDSA: + return( &mbedtls_ecdsa_info ); +#endif + /* MBEDTLS_PK_RSA_ALT omitted on purpose */ + default: + return( NULL ); + } +} + +/* + * Initialise context + */ +int mbedtls_pk_setup( mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info ) +{ + if( ctx == NULL || info == NULL || ctx->pk_info != NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL ) + return( MBEDTLS_ERR_PK_ALLOC_FAILED ); + + ctx->pk_info = info; + + return( 0 ); +} + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/* + * Initialize an RSA-alt context + */ +int mbedtls_pk_setup_rsa_alt( mbedtls_pk_context *ctx, void * key, + mbedtls_pk_rsa_alt_decrypt_func decrypt_func, + mbedtls_pk_rsa_alt_sign_func sign_func, + mbedtls_pk_rsa_alt_key_len_func key_len_func ) +{ + mbedtls_rsa_alt_context *rsa_alt; + const mbedtls_pk_info_t *info = &mbedtls_rsa_alt_info; + + if( ctx == NULL || ctx->pk_info != NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL ) + return( MBEDTLS_ERR_PK_ALLOC_FAILED ); + + ctx->pk_info = info; + + rsa_alt = (mbedtls_rsa_alt_context *) ctx->pk_ctx; + + rsa_alt->key = key; + rsa_alt->decrypt_func = decrypt_func; + rsa_alt->sign_func = sign_func; + rsa_alt->key_len_func = key_len_func; + + return( 0 ); +} +#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ + +/* + * Tell if a PK can do the operations of the given type + */ +int mbedtls_pk_can_do( const mbedtls_pk_context *ctx, mbedtls_pk_type_t type ) +{ + /* null or NONE context can't do anything */ + if( ctx == NULL || ctx->pk_info == NULL ) + return( 0 ); + + return( ctx->pk_info->can_do( type ) ); +} + +/* + * Helper for mbedtls_pk_sign and mbedtls_pk_verify + */ +static inline int pk_hashlen_helper( mbedtls_md_type_t md_alg, size_t *hash_len ) +{ + const mbedtls_md_info_t *md_info; + + if( *hash_len != 0 ) + return( 0 ); + + if( ( md_info = mbedtls_md_info_from_type( md_alg ) ) == NULL ) + return( -1 ); + + *hash_len = mbedtls_md_get_size( md_info ); + return( 0 ); +} + +/* + * Verify a signature + */ +int mbedtls_pk_verify( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ) +{ + if( ctx == NULL || ctx->pk_info == NULL || + pk_hashlen_helper( md_alg, &hash_len ) != 0 ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ctx->pk_info->verify_func == NULL ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + + return( ctx->pk_info->verify_func( ctx->pk_ctx, md_alg, hash, hash_len, + sig, sig_len ) ); +} + +/* + * Verify a signature with options + */ +int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options, + mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ! mbedtls_pk_can_do( ctx, type ) ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + + if( type == MBEDTLS_PK_RSASSA_PSS ) + { +#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21) + int ret; + const mbedtls_pk_rsassa_pss_options *pss_opts; + + if( options == NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + pss_opts = (const mbedtls_pk_rsassa_pss_options *) options; + + if( sig_len < mbedtls_pk_get_len( ctx ) ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + ret = mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_pk_rsa( *ctx ), + NULL, NULL, MBEDTLS_RSA_PUBLIC, + md_alg, (unsigned int) hash_len, hash, + pss_opts->mgf1_hash_id, + pss_opts->expected_salt_len, + sig ); + if( ret != 0 ) + return( ret ); + + if( sig_len > mbedtls_pk_get_len( ctx ) ) + return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH ); + + return( 0 ); +#else + return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); +#endif + } + + /* General case: no options */ + if( options != NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + return( mbedtls_pk_verify( ctx, md_alg, hash, hash_len, sig, sig_len ) ); +} + +/* + * Make a signature + */ +int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + if( ctx == NULL || ctx->pk_info == NULL || + pk_hashlen_helper( md_alg, &hash_len ) != 0 ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ctx->pk_info->sign_func == NULL ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + + return( ctx->pk_info->sign_func( ctx->pk_ctx, md_alg, hash, hash_len, + sig, sig_len, f_rng, p_rng ) ); +} + +/* + * Decrypt message + */ +int mbedtls_pk_decrypt( mbedtls_pk_context *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ctx->pk_info->decrypt_func == NULL ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + + return( ctx->pk_info->decrypt_func( ctx->pk_ctx, input, ilen, + output, olen, osize, f_rng, p_rng ) ); +} + +/* + * Encrypt message + */ +int mbedtls_pk_encrypt( mbedtls_pk_context *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ctx->pk_info->encrypt_func == NULL ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + + return( ctx->pk_info->encrypt_func( ctx->pk_ctx, input, ilen, + output, olen, osize, f_rng, p_rng ) ); +} + +/* + * Check public-private key pair + */ +int mbedtls_pk_check_pair( const mbedtls_pk_context *pub, const mbedtls_pk_context *prv ) +{ + if( pub == NULL || pub->pk_info == NULL || + prv == NULL || prv->pk_info == NULL || + prv->pk_info->check_pair_func == NULL ) + { + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + } + + if( prv->pk_info->type == MBEDTLS_PK_RSA_ALT ) + { + if( pub->pk_info->type != MBEDTLS_PK_RSA ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + } + else + { + if( pub->pk_info != prv->pk_info ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + } + + return( prv->pk_info->check_pair_func( pub->pk_ctx, prv->pk_ctx ) ); +} + +/* + * Get key size in bits + */ +size_t mbedtls_pk_get_bitlen( const mbedtls_pk_context *ctx ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return( 0 ); + + return( ctx->pk_info->get_bitlen( ctx->pk_ctx ) ); +} + +/* + * Export debug information + */ +int mbedtls_pk_debug( const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + if( ctx->pk_info->debug_func == NULL ) + return( MBEDTLS_ERR_PK_TYPE_MISMATCH ); + + ctx->pk_info->debug_func( ctx->pk_ctx, items ); + return( 0 ); +} + +/* + * Access the PK type name + */ +const char *mbedtls_pk_get_name( const mbedtls_pk_context *ctx ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return( "invalid PK" ); + + return( ctx->pk_info->name ); +} + +/* + * Access the PK type + */ +mbedtls_pk_type_t mbedtls_pk_get_type( const mbedtls_pk_context *ctx ) +{ + if( ctx == NULL || ctx->pk_info == NULL ) + return( MBEDTLS_PK_NONE ); + + return( ctx->pk_info->type ); +} + +#endif /* MBEDTLS_PK_C */ diff --git a/mbedtls/pk_wrap.c b/mbedtls/pk_wrap.c new file mode 100644 index 0000000..712ad48 --- /dev/null +++ b/mbedtls/pk_wrap.c @@ -0,0 +1,495 @@ +/* + * Public Key abstraction layer: wrapper functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PK_C) +#include "mbedtls/pk_internal.h" + +/* Even if RSA not activated, for the sake of RSA-alt */ +#include "mbedtls/rsa.h" + +#include + +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif + +#if defined(MBEDTLS_ECDSA_C) +#include "mbedtls/ecdsa.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} +#endif + +#if defined(MBEDTLS_RSA_C) +static int rsa_can_do( mbedtls_pk_type_t type ) +{ + return( type == MBEDTLS_PK_RSA || + type == MBEDTLS_PK_RSASSA_PSS ); +} + +static size_t rsa_get_bitlen( const void *ctx ) +{ + return( 8 * ((const mbedtls_rsa_context *) ctx)->len ); +} + +static int rsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ) +{ + int ret; + + if( sig_len < ((mbedtls_rsa_context *) ctx)->len ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( ( ret = mbedtls_rsa_pkcs1_verify( (mbedtls_rsa_context *) ctx, NULL, NULL, + MBEDTLS_RSA_PUBLIC, md_alg, + (unsigned int) hash_len, hash, sig ) ) != 0 ) + return( ret ); + + if( sig_len > ((mbedtls_rsa_context *) ctx)->len ) + return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH ); + + return( 0 ); +} + +static int rsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + *sig_len = ((mbedtls_rsa_context *) ctx)->len; + + return( mbedtls_rsa_pkcs1_sign( (mbedtls_rsa_context *) ctx, f_rng, p_rng, MBEDTLS_RSA_PRIVATE, + md_alg, (unsigned int) hash_len, hash, sig ) ); +} + +static int rsa_decrypt_wrap( void *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + if( ilen != ((mbedtls_rsa_context *) ctx)->len ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + return( mbedtls_rsa_pkcs1_decrypt( (mbedtls_rsa_context *) ctx, f_rng, p_rng, + MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) ); +} + +static int rsa_encrypt_wrap( void *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + *olen = ((mbedtls_rsa_context *) ctx)->len; + + if( *olen > osize ) + return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); + + return( mbedtls_rsa_pkcs1_encrypt( (mbedtls_rsa_context *) ctx, + f_rng, p_rng, MBEDTLS_RSA_PUBLIC, ilen, input, output ) ); +} + +static int rsa_check_pair_wrap( const void *pub, const void *prv ) +{ + return( mbedtls_rsa_check_pub_priv( (const mbedtls_rsa_context *) pub, + (const mbedtls_rsa_context *) prv ) ); +} + +static void *rsa_alloc_wrap( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_context ) ); + + if( ctx != NULL ) + mbedtls_rsa_init( (mbedtls_rsa_context *) ctx, 0, 0 ); + + return( ctx ); +} + +static void rsa_free_wrap( void *ctx ) +{ + mbedtls_rsa_free( (mbedtls_rsa_context *) ctx ); + mbedtls_free( ctx ); +} + +static void rsa_debug( const void *ctx, mbedtls_pk_debug_item *items ) +{ + items->type = MBEDTLS_PK_DEBUG_MPI; + items->name = "rsa.N"; + items->value = &( ((mbedtls_rsa_context *) ctx)->N ); + + items++; + + items->type = MBEDTLS_PK_DEBUG_MPI; + items->name = "rsa.E"; + items->value = &( ((mbedtls_rsa_context *) ctx)->E ); +} + +const mbedtls_pk_info_t mbedtls_rsa_info = { + MBEDTLS_PK_RSA, + "RSA", + rsa_get_bitlen, + rsa_can_do, + rsa_verify_wrap, + rsa_sign_wrap, + rsa_decrypt_wrap, + rsa_encrypt_wrap, + rsa_check_pair_wrap, + rsa_alloc_wrap, + rsa_free_wrap, + rsa_debug, +}; +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) +/* + * Generic EC key + */ +static int eckey_can_do( mbedtls_pk_type_t type ) +{ + return( type == MBEDTLS_PK_ECKEY || + type == MBEDTLS_PK_ECKEY_DH || + type == MBEDTLS_PK_ECDSA ); +} + +static size_t eckey_get_bitlen( const void *ctx ) +{ + return( ((mbedtls_ecp_keypair *) ctx)->grp.pbits ); +} + +#if defined(MBEDTLS_ECDSA_C) +/* Forward declarations */ +static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ); + +static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); + +static int eckey_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ) +{ + int ret; + mbedtls_ecdsa_context ecdsa; + + mbedtls_ecdsa_init( &ecdsa ); + + if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 ) + ret = ecdsa_verify_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len ); + + mbedtls_ecdsa_free( &ecdsa ); + + return( ret ); +} + +static int eckey_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret; + mbedtls_ecdsa_context ecdsa; + + mbedtls_ecdsa_init( &ecdsa ); + + if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 ) + ret = ecdsa_sign_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len, + f_rng, p_rng ); + + mbedtls_ecdsa_free( &ecdsa ); + + return( ret ); +} + +#endif /* MBEDTLS_ECDSA_C */ + +static int eckey_check_pair( const void *pub, const void *prv ) +{ + return( mbedtls_ecp_check_pub_priv( (const mbedtls_ecp_keypair *) pub, + (const mbedtls_ecp_keypair *) prv ) ); +} + +static void *eckey_alloc_wrap( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecp_keypair ) ); + + if( ctx != NULL ) + mbedtls_ecp_keypair_init( ctx ); + + return( ctx ); +} + +static void eckey_free_wrap( void *ctx ) +{ + mbedtls_ecp_keypair_free( (mbedtls_ecp_keypair *) ctx ); + mbedtls_free( ctx ); +} + +static void eckey_debug( const void *ctx, mbedtls_pk_debug_item *items ) +{ + items->type = MBEDTLS_PK_DEBUG_ECP; + items->name = "eckey.Q"; + items->value = &( ((mbedtls_ecp_keypair *) ctx)->Q ); +} + +const mbedtls_pk_info_t mbedtls_eckey_info = { + MBEDTLS_PK_ECKEY, + "EC", + eckey_get_bitlen, + eckey_can_do, +#if defined(MBEDTLS_ECDSA_C) + eckey_verify_wrap, + eckey_sign_wrap, +#else + NULL, + NULL, +#endif + NULL, + NULL, + eckey_check_pair, + eckey_alloc_wrap, + eckey_free_wrap, + eckey_debug, +}; + +/* + * EC key restricted to ECDH + */ +static int eckeydh_can_do( mbedtls_pk_type_t type ) +{ + return( type == MBEDTLS_PK_ECKEY || + type == MBEDTLS_PK_ECKEY_DH ); +} + +const mbedtls_pk_info_t mbedtls_eckeydh_info = { + MBEDTLS_PK_ECKEY_DH, + "EC_DH", + eckey_get_bitlen, /* Same underlying key structure */ + eckeydh_can_do, + NULL, + NULL, + NULL, + NULL, + eckey_check_pair, + eckey_alloc_wrap, /* Same underlying key structure */ + eckey_free_wrap, /* Same underlying key structure */ + eckey_debug, /* Same underlying key structure */ +}; +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_ECDSA_C) +static int ecdsa_can_do( mbedtls_pk_type_t type ) +{ + return( type == MBEDTLS_PK_ECDSA ); +} + +static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len ) +{ + int ret; + ((void) md_alg); + + ret = mbedtls_ecdsa_read_signature( (mbedtls_ecdsa_context *) ctx, + hash, hash_len, sig, sig_len ); + + if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH ) + return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH ); + + return( ret ); +} + +static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + return( mbedtls_ecdsa_write_signature( (mbedtls_ecdsa_context *) ctx, + md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng ) ); +} + +static void *ecdsa_alloc_wrap( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_context ) ); + + if( ctx != NULL ) + mbedtls_ecdsa_init( (mbedtls_ecdsa_context *) ctx ); + + return( ctx ); +} + +static void ecdsa_free_wrap( void *ctx ) +{ + mbedtls_ecdsa_free( (mbedtls_ecdsa_context *) ctx ); + mbedtls_free( ctx ); +} + +const mbedtls_pk_info_t mbedtls_ecdsa_info = { + MBEDTLS_PK_ECDSA, + "ECDSA", + eckey_get_bitlen, /* Compatible key structures */ + ecdsa_can_do, + ecdsa_verify_wrap, + ecdsa_sign_wrap, + NULL, + NULL, + eckey_check_pair, /* Compatible key structures */ + ecdsa_alloc_wrap, + ecdsa_free_wrap, + eckey_debug, /* Compatible key structures */ +}; +#endif /* MBEDTLS_ECDSA_C */ + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/* + * Support for alternative RSA-private implementations + */ + +static int rsa_alt_can_do( mbedtls_pk_type_t type ) +{ + return( type == MBEDTLS_PK_RSA ); +} + +static size_t rsa_alt_get_bitlen( const void *ctx ) +{ + const mbedtls_rsa_alt_context *rsa_alt = (const mbedtls_rsa_alt_context *) ctx; + + return( 8 * rsa_alt->key_len_func( rsa_alt->key ) ); +} + +static int rsa_alt_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx; + + *sig_len = rsa_alt->key_len_func( rsa_alt->key ); + + return( rsa_alt->sign_func( rsa_alt->key, f_rng, p_rng, MBEDTLS_RSA_PRIVATE, + md_alg, (unsigned int) hash_len, hash, sig ) ); +} + +static int rsa_alt_decrypt_wrap( void *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx; + + ((void) f_rng); + ((void) p_rng); + + if( ilen != rsa_alt->key_len_func( rsa_alt->key ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + return( rsa_alt->decrypt_func( rsa_alt->key, + MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) ); +} + +#if defined(MBEDTLS_RSA_C) +static int rsa_alt_check_pair( const void *pub, const void *prv ) +{ + unsigned char sig[MBEDTLS_MPI_MAX_SIZE]; + unsigned char hash[32]; + size_t sig_len = 0; + int ret; + + if( rsa_alt_get_bitlen( prv ) != rsa_get_bitlen( pub ) ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + memset( hash, 0x2a, sizeof( hash ) ); + + if( ( ret = rsa_alt_sign_wrap( (void *) prv, MBEDTLS_MD_NONE, + hash, sizeof( hash ), + sig, &sig_len, NULL, NULL ) ) != 0 ) + { + return( ret ); + } + + if( rsa_verify_wrap( (void *) pub, MBEDTLS_MD_NONE, + hash, sizeof( hash ), sig, sig_len ) != 0 ) + { + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + } + + return( 0 ); +} +#endif /* MBEDTLS_RSA_C */ + +static void *rsa_alt_alloc_wrap( void ) +{ + void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_alt_context ) ); + + if( ctx != NULL ) + memset( ctx, 0, sizeof( mbedtls_rsa_alt_context ) ); + + return( ctx ); +} + +static void rsa_alt_free_wrap( void *ctx ) +{ + mbedtls_zeroize( ctx, sizeof( mbedtls_rsa_alt_context ) ); + mbedtls_free( ctx ); +} + +const mbedtls_pk_info_t mbedtls_rsa_alt_info = { + MBEDTLS_PK_RSA_ALT, + "RSA-alt", + rsa_alt_get_bitlen, + rsa_alt_can_do, + NULL, + rsa_alt_sign_wrap, + rsa_alt_decrypt_wrap, + NULL, +#if defined(MBEDTLS_RSA_C) + rsa_alt_check_pair, +#else + NULL, +#endif + rsa_alt_alloc_wrap, + rsa_alt_free_wrap, + NULL, +}; + +#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ + +#endif /* MBEDTLS_PK_C */ diff --git a/mbedtls/pkcs11.c b/mbedtls/pkcs11.c new file mode 100644 index 0000000..0ea6425 --- /dev/null +++ b/mbedtls/pkcs11.c @@ -0,0 +1,240 @@ +/** + * \file pkcs11.c + * + * \brief Wrapper for PKCS#11 library libpkcs11-helper + * + * \author Adriaan de Jong + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#include "mbedtls/pkcs11.h" + +#if defined(MBEDTLS_PKCS11_C) + +#include "mbedtls/md.h" +#include "mbedtls/oid.h" +#include "mbedtls/x509_crt.h" + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include + +void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) ); +} + +int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert ) +{ + int ret = 1; + unsigned char *cert_blob = NULL; + size_t cert_blob_size = 0; + + if( cert == NULL ) + { + ret = 2; + goto cleanup; + } + + if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL, + &cert_blob_size ) != CKR_OK ) + { + ret = 3; + goto cleanup; + } + + cert_blob = mbedtls_calloc( 1, cert_blob_size ); + if( NULL == cert_blob ) + { + ret = 4; + goto cleanup; + } + + if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob, + &cert_blob_size ) != CKR_OK ) + { + ret = 5; + goto cleanup; + } + + if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) ) + { + ret = 6; + goto cleanup; + } + + ret = 0; + +cleanup: + if( NULL != cert_blob ) + mbedtls_free( cert_blob ); + + return( ret ); +} + + +int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key, + pkcs11h_certificate_t pkcs11_cert ) +{ + int ret = 1; + mbedtls_x509_crt cert; + + mbedtls_x509_crt_init( &cert ); + + if( priv_key == NULL ) + goto cleanup; + + if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) ) + goto cleanup; + + priv_key->len = mbedtls_pk_get_len( &cert.pk ); + priv_key->pkcs11h_cert = pkcs11_cert; + + ret = 0; + +cleanup: + mbedtls_x509_crt_free( &cert ); + + return( ret ); +} + +void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key ) +{ + if( NULL != priv_key ) + pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert ); +} + +int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ) +{ + size_t input_len, output_len; + + if( NULL == ctx ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( MBEDTLS_RSA_PRIVATE != mode ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + output_len = input_len = ctx->len; + + if( input_len < 16 || input_len > output_max_len ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + /* Determine size of output buffer */ + if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input, + input_len, NULL, &output_len ) != CKR_OK ) + { + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + } + + if( output_len > output_max_len ) + return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); + + if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input, + input_len, output, &output_len ) != CKR_OK ) + { + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + } + *olen = output_len; + return( 0 ); +} + +int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ) +{ + size_t sig_len = 0, asn_len = 0, oid_size = 0; + unsigned char *p = sig; + const char *oid; + + if( NULL == ctx ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( MBEDTLS_RSA_PRIVATE != mode ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( md_alg != MBEDTLS_MD_NONE ) + { + const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hashlen = mbedtls_md_get_size( md_info ); + asn_len = 10 + oid_size; + } + + sig_len = ctx->len; + if( hashlen > sig_len || asn_len > sig_len || + hashlen + asn_len > sig_len ) + { + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + } + + if( md_alg != MBEDTLS_MD_NONE ) + { + /* + * DigestInfo ::= SEQUENCE { + * digestAlgorithm DigestAlgorithmIdentifier, + * digest Digest } + * + * DigestAlgorithmIdentifier ::= AlgorithmIdentifier + * + * Digest ::= OCTET STRING + */ + *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; + *p++ = (unsigned char) ( 0x08 + oid_size + hashlen ); + *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; + *p++ = (unsigned char) ( 0x04 + oid_size ); + *p++ = MBEDTLS_ASN1_OID; + *p++ = oid_size & 0xFF; + memcpy( p, oid, oid_size ); + p += oid_size; + *p++ = MBEDTLS_ASN1_NULL; + *p++ = 0x00; + *p++ = MBEDTLS_ASN1_OCTET_STRING; + *p++ = hashlen; + } + + memcpy( p, hash, hashlen ); + + if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig, + asn_len + hashlen, sig, &sig_len ) != CKR_OK ) + { + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + } + + return( 0 ); +} + +#endif /* defined(MBEDTLS_PKCS11_C) */ diff --git a/mbedtls/pkcs12.c b/mbedtls/pkcs12.c new file mode 100644 index 0000000..c603a13 --- /dev/null +++ b/mbedtls/pkcs12.c @@ -0,0 +1,365 @@ +/* + * PKCS#12 Personal Information Exchange Syntax + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The PKCS #12 Personal Information Exchange Syntax Standard v1.1 + * + * http://www.rsa.com/rsalabs/pkcs/files/h11301-wp-pkcs-12v1-1-personal-information-exchange-syntax.pdf + * ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12v1-1.asn + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PKCS12_C) + +#include "mbedtls/pkcs12.h" +#include "mbedtls/asn1.h" +#include "mbedtls/cipher.h" + +#include + +#if defined(MBEDTLS_ARC4_C) +#include "mbedtls/arc4.h" +#endif + +#if defined(MBEDTLS_DES_C) +#include "mbedtls/des.h" +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +static int pkcs12_parse_pbe_params( mbedtls_asn1_buf *params, + mbedtls_asn1_buf *salt, int *iterations ) +{ + int ret; + unsigned char **p = ¶ms->p; + const unsigned char *end = params->p + params->len; + + /* + * pkcs-12PbeParams ::= SEQUENCE { + * salt OCTET STRING, + * iterations INTEGER + * } + * + */ + if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) + return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + if( ( ret = mbedtls_asn1_get_tag( p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + ret ); + + salt->p = *p; + *p += salt->len; + + if( ( ret = mbedtls_asn1_get_int( p, end, iterations ) ) != 0 ) + return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + ret ); + + if( *p != end ) + return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +#define PKCS12_MAX_PWDLEN 128 + +static int pkcs12_pbe_derive_key_iv( mbedtls_asn1_buf *pbe_params, mbedtls_md_type_t md_type, + const unsigned char *pwd, size_t pwdlen, + unsigned char *key, size_t keylen, + unsigned char *iv, size_t ivlen ) +{ + int ret, iterations = 0; + mbedtls_asn1_buf salt; + size_t i; + unsigned char unipwd[PKCS12_MAX_PWDLEN * 2 + 2]; + + if( pwdlen > PKCS12_MAX_PWDLEN ) + return( MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA ); + + memset( &salt, 0, sizeof(mbedtls_asn1_buf) ); + memset( &unipwd, 0, sizeof(unipwd) ); + + if( ( ret = pkcs12_parse_pbe_params( pbe_params, &salt, + &iterations ) ) != 0 ) + return( ret ); + + for( i = 0; i < pwdlen; i++ ) + unipwd[i * 2 + 1] = pwd[i]; + + if( ( ret = mbedtls_pkcs12_derivation( key, keylen, unipwd, pwdlen * 2 + 2, + salt.p, salt.len, md_type, + MBEDTLS_PKCS12_DERIVE_KEY, iterations ) ) != 0 ) + { + return( ret ); + } + + if( iv == NULL || ivlen == 0 ) + return( 0 ); + + if( ( ret = mbedtls_pkcs12_derivation( iv, ivlen, unipwd, pwdlen * 2 + 2, + salt.p, salt.len, md_type, + MBEDTLS_PKCS12_DERIVE_IV, iterations ) ) != 0 ) + { + return( ret ); + } + return( 0 ); +} + +#undef PKCS12_MAX_PWDLEN + +int mbedtls_pkcs12_pbe_sha1_rc4_128( mbedtls_asn1_buf *pbe_params, int mode, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t len, + unsigned char *output ) +{ +#if !defined(MBEDTLS_ARC4_C) + ((void) pbe_params); + ((void) mode); + ((void) pwd); + ((void) pwdlen); + ((void) data); + ((void) len); + ((void) output); + return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE ); +#else + int ret; + unsigned char key[16]; + mbedtls_arc4_context ctx; + ((void) mode); + + mbedtls_arc4_init( &ctx ); + + if( ( ret = pkcs12_pbe_derive_key_iv( pbe_params, MBEDTLS_MD_SHA1, + pwd, pwdlen, + key, 16, NULL, 0 ) ) != 0 ) + { + return( ret ); + } + + mbedtls_arc4_setup( &ctx, key, 16 ); + if( ( ret = mbedtls_arc4_crypt( &ctx, len, data, output ) ) != 0 ) + goto exit; + +exit: + mbedtls_zeroize( key, sizeof( key ) ); + mbedtls_arc4_free( &ctx ); + + return( ret ); +#endif /* MBEDTLS_ARC4_C */ +} + +int mbedtls_pkcs12_pbe( mbedtls_asn1_buf *pbe_params, int mode, + mbedtls_cipher_type_t cipher_type, mbedtls_md_type_t md_type, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t len, + unsigned char *output ) +{ + int ret, keylen = 0; + unsigned char key[32]; + unsigned char iv[16]; + const mbedtls_cipher_info_t *cipher_info; + mbedtls_cipher_context_t cipher_ctx; + size_t olen = 0; + + cipher_info = mbedtls_cipher_info_from_type( cipher_type ); + if( cipher_info == NULL ) + return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE ); + + keylen = cipher_info->key_bitlen / 8; + + if( ( ret = pkcs12_pbe_derive_key_iv( pbe_params, md_type, pwd, pwdlen, + key, keylen, + iv, cipher_info->iv_size ) ) != 0 ) + { + return( ret ); + } + + mbedtls_cipher_init( &cipher_ctx ); + + if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen, (mbedtls_operation_t) mode ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_cipher_set_iv( &cipher_ctx, iv, cipher_info->iv_size ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_cipher_reset( &cipher_ctx ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_cipher_update( &cipher_ctx, data, len, + output, &olen ) ) != 0 ) + { + goto exit; + } + + if( ( ret = mbedtls_cipher_finish( &cipher_ctx, output + olen, &olen ) ) != 0 ) + ret = MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH; + +exit: + mbedtls_zeroize( key, sizeof( key ) ); + mbedtls_zeroize( iv, sizeof( iv ) ); + mbedtls_cipher_free( &cipher_ctx ); + + return( ret ); +} + +static void pkcs12_fill_buffer( unsigned char *data, size_t data_len, + const unsigned char *filler, size_t fill_len ) +{ + unsigned char *p = data; + size_t use_len; + + while( data_len > 0 ) + { + use_len = ( data_len > fill_len ) ? fill_len : data_len; + memcpy( p, filler, use_len ); + p += use_len; + data_len -= use_len; + } +} + +int mbedtls_pkcs12_derivation( unsigned char *data, size_t datalen, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *salt, size_t saltlen, + mbedtls_md_type_t md_type, int id, int iterations ) +{ + int ret; + unsigned int j; + + unsigned char diversifier[128]; + unsigned char salt_block[128], pwd_block[128], hash_block[128]; + unsigned char hash_output[MBEDTLS_MD_MAX_SIZE]; + unsigned char *p; + unsigned char c; + + size_t hlen, use_len, v, i; + + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + + // This version only allows max of 64 bytes of password or salt + if( datalen > 128 || pwdlen > 64 || saltlen > 64 ) + return( MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA ); + + md_info = mbedtls_md_info_from_type( md_type ); + if( md_info == NULL ) + return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE ); + + mbedtls_md_init( &md_ctx ); + + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + return( ret ); + hlen = mbedtls_md_get_size( md_info ); + + if( hlen <= 32 ) + v = 64; + else + v = 128; + + memset( diversifier, (unsigned char) id, v ); + + pkcs12_fill_buffer( salt_block, v, salt, saltlen ); + pkcs12_fill_buffer( pwd_block, v, pwd, pwdlen ); + + p = data; + while( datalen > 0 ) + { + // Calculate hash( diversifier || salt_block || pwd_block ) + if( ( ret = mbedtls_md_starts( &md_ctx ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_md_update( &md_ctx, diversifier, v ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_md_update( &md_ctx, salt_block, v ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_md_update( &md_ctx, pwd_block, v ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_md_finish( &md_ctx, hash_output ) ) != 0 ) + goto exit; + + // Perform remaining ( iterations - 1 ) recursive hash calculations + for( i = 1; i < (size_t) iterations; i++ ) + { + if( ( ret = mbedtls_md( md_info, hash_output, hlen, hash_output ) ) != 0 ) + goto exit; + } + + use_len = ( datalen > hlen ) ? hlen : datalen; + memcpy( p, hash_output, use_len ); + datalen -= use_len; + p += use_len; + + if( datalen == 0 ) + break; + + // Concatenating copies of hash_output into hash_block (B) + pkcs12_fill_buffer( hash_block, v, hash_output, hlen ); + + // B += 1 + for( i = v; i > 0; i-- ) + if( ++hash_block[i - 1] != 0 ) + break; + + // salt_block += B + c = 0; + for( i = v; i > 0; i-- ) + { + j = salt_block[i - 1] + hash_block[i - 1] + c; + c = (unsigned char) (j >> 8); + salt_block[i - 1] = j & 0xFF; + } + + // pwd_block += B + c = 0; + for( i = v; i > 0; i-- ) + { + j = pwd_block[i - 1] + hash_block[i - 1] + c; + c = (unsigned char) (j >> 8); + pwd_block[i - 1] = j & 0xFF; + } + } + + ret = 0; + +exit: + mbedtls_zeroize( salt_block, sizeof( salt_block ) ); + mbedtls_zeroize( pwd_block, sizeof( pwd_block ) ); + mbedtls_zeroize( hash_block, sizeof( hash_block ) ); + mbedtls_zeroize( hash_output, sizeof( hash_output ) ); + + mbedtls_md_free( &md_ctx ); + + return( ret ); +} + +#endif /* MBEDTLS_PKCS12_C */ diff --git a/mbedtls/pkcs5.c b/mbedtls/pkcs5.c new file mode 100644 index 0000000..e28d5a8 --- /dev/null +++ b/mbedtls/pkcs5.c @@ -0,0 +1,406 @@ +/** + * \file pkcs5.c + * + * \brief PKCS#5 functions + * + * \author Mathias Olsson + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * PKCS#5 includes PBKDF2 and more + * + * http://tools.ietf.org/html/rfc2898 (Specification) + * http://tools.ietf.org/html/rfc6070 (Test vectors) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PKCS5_C) + +#include "mbedtls/pkcs5.h" +#include "mbedtls/asn1.h" +#include "mbedtls/cipher.h" +#include "mbedtls/oid.h" + +#include + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif + +static int pkcs5_parse_pbkdf2_params( const mbedtls_asn1_buf *params, + mbedtls_asn1_buf *salt, int *iterations, + int *keylen, mbedtls_md_type_t *md_type ) +{ + int ret; + mbedtls_asn1_buf prf_alg_oid; + unsigned char *p = params->p; + const unsigned char *end = params->p + params->len; + + if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + /* + * PBKDF2-params ::= SEQUENCE { + * salt OCTET STRING, + * iterationCount INTEGER, + * keyLength INTEGER OPTIONAL + * prf AlgorithmIdentifier DEFAULT algid-hmacWithSHA1 + * } + * + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret ); + + salt->p = p; + p += salt->len; + + if( ( ret = mbedtls_asn1_get_int( &p, end, iterations ) ) != 0 ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret ); + + if( p == end ) + return( 0 ); + + if( ( ret = mbedtls_asn1_get_int( &p, end, keylen ) ) != 0 ) + { + if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret ); + } + + if( p == end ) + return( 0 ); + + if( ( ret = mbedtls_asn1_get_alg_null( &p, end, &prf_alg_oid ) ) != 0 ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret ); + + if( MBEDTLS_OID_CMP( MBEDTLS_OID_HMAC_SHA1, &prf_alg_oid ) != 0 ) + return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); + + *md_type = MBEDTLS_MD_SHA1; + + if( p != end ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t datalen, + unsigned char *output ) +{ + int ret, iterations = 0, keylen = 0; + unsigned char *p, *end; + mbedtls_asn1_buf kdf_alg_oid, enc_scheme_oid, kdf_alg_params, enc_scheme_params; + mbedtls_asn1_buf salt; + mbedtls_md_type_t md_type = MBEDTLS_MD_SHA1; + unsigned char key[32], iv[32]; + size_t olen = 0; + const mbedtls_md_info_t *md_info; + const mbedtls_cipher_info_t *cipher_info; + mbedtls_md_context_t md_ctx; + mbedtls_cipher_type_t cipher_alg; + mbedtls_cipher_context_t cipher_ctx; + + p = pbe_params->p; + end = p + pbe_params->len; + + /* + * PBES2-params ::= SEQUENCE { + * keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}}, + * encryptionScheme AlgorithmIdentifier {{PBES2-Encs}} + * } + */ + if( pbe_params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + if( ( ret = mbedtls_asn1_get_alg( &p, end, &kdf_alg_oid, &kdf_alg_params ) ) != 0 ) + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret ); + + // Only PBKDF2 supported at the moment + // + if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS5_PBKDF2, &kdf_alg_oid ) != 0 ) + return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); + + if( ( ret = pkcs5_parse_pbkdf2_params( &kdf_alg_params, + &salt, &iterations, &keylen, + &md_type ) ) != 0 ) + { + return( ret ); + } + + md_info = mbedtls_md_info_from_type( md_type ); + if( md_info == NULL ) + return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); + + if( ( ret = mbedtls_asn1_get_alg( &p, end, &enc_scheme_oid, + &enc_scheme_params ) ) != 0 ) + { + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret ); + } + + if( mbedtls_oid_get_cipher_alg( &enc_scheme_oid, &cipher_alg ) != 0 ) + return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); + + cipher_info = mbedtls_cipher_info_from_type( cipher_alg ); + if( cipher_info == NULL ) + return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); + + /* + * The value of keylen from pkcs5_parse_pbkdf2_params() is ignored + * since it is optional and we don't know if it was set or not + */ + keylen = cipher_info->key_bitlen / 8; + + if( enc_scheme_params.tag != MBEDTLS_ASN1_OCTET_STRING || + enc_scheme_params.len != cipher_info->iv_size ) + { + return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT ); + } + + mbedtls_md_init( &md_ctx ); + mbedtls_cipher_init( &cipher_ctx ); + + memcpy( iv, enc_scheme_params.p, enc_scheme_params.len ); + + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_pkcs5_pbkdf2_hmac( &md_ctx, pwd, pwdlen, salt.p, salt.len, + iterations, keylen, key ) ) != 0 ) + { + goto exit; + } + + if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen, (mbedtls_operation_t) mode ) ) != 0 ) + goto exit; + + if( ( ret = mbedtls_cipher_crypt( &cipher_ctx, iv, enc_scheme_params.len, + data, datalen, output, &olen ) ) != 0 ) + ret = MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH; + +exit: + mbedtls_md_free( &md_ctx ); + mbedtls_cipher_free( &cipher_ctx ); + + return( ret ); +} + +int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, const unsigned char *password, + size_t plen, const unsigned char *salt, size_t slen, + unsigned int iteration_count, + uint32_t key_length, unsigned char *output ) +{ + int ret, j; + unsigned int i; + unsigned char md1[MBEDTLS_MD_MAX_SIZE]; + unsigned char work[MBEDTLS_MD_MAX_SIZE]; + unsigned char md_size = mbedtls_md_get_size( ctx->md_info ); + size_t use_len; + unsigned char *out_p = output; + unsigned char counter[4]; + + memset( counter, 0, 4 ); + counter[3] = 1; + + if( iteration_count > 0xFFFFFFFF ) + return( MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA ); + + while( key_length ) + { + // U1 ends up in work + // + if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_md_hmac_update( ctx, salt, slen ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_md_hmac_update( ctx, counter, 4 ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_md_hmac_finish( ctx, work ) ) != 0 ) + return( ret ); + + memcpy( md1, work, md_size ); + + for( i = 1; i < iteration_count; i++ ) + { + // U2 ends up in md1 + // + if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_md_hmac_update( ctx, md1, md_size ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_md_hmac_finish( ctx, md1 ) ) != 0 ) + return( ret ); + + // U1 xor U2 + // + for( j = 0; j < md_size; j++ ) + work[j] ^= md1[j]; + } + + use_len = ( key_length < md_size ) ? key_length : md_size; + memcpy( out_p, work, use_len ); + + key_length -= (uint32_t) use_len; + out_p += use_len; + + for( i = 4; i > 0; i-- ) + if( ++counter[i - 1] != 0 ) + break; + } + + return( 0 ); +} + +#if defined(MBEDTLS_SELF_TEST) + +#if !defined(MBEDTLS_SHA1_C) +int mbedtls_pkcs5_self_test( int verbose ) +{ + if( verbose != 0 ) + mbedtls_printf( " PBKDF2 (SHA1): skipped\n\n" ); + + return( 0 ); +} +#else + +#define MAX_TESTS 6 + +static const size_t plen[MAX_TESTS] = + { 8, 8, 8, 24, 9 }; + +static const unsigned char password[MAX_TESTS][32] = +{ + "password", + "password", + "password", + "passwordPASSWORDpassword", + "pass\0word", +}; + +static const size_t slen[MAX_TESTS] = + { 4, 4, 4, 36, 5 }; + +static const unsigned char salt[MAX_TESTS][40] = +{ + "salt", + "salt", + "salt", + "saltSALTsaltSALTsaltSALTsaltSALTsalt", + "sa\0lt", +}; + +static const uint32_t it_cnt[MAX_TESTS] = + { 1, 2, 4096, 4096, 4096 }; + +static const uint32_t key_len[MAX_TESTS] = + { 20, 20, 20, 25, 16 }; + +static const unsigned char result_key[MAX_TESTS][32] = +{ + { 0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e, 0x71, + 0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60, 0x12, 0x06, + 0x2f, 0xe0, 0x37, 0xa6 }, + { 0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f, 0x8c, + 0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d, 0x41, 0xf0, + 0xd8, 0xde, 0x89, 0x57 }, + { 0x4b, 0x00, 0x79, 0x01, 0xb7, 0x65, 0x48, 0x9a, + 0xbe, 0xad, 0x49, 0xd9, 0x26, 0xf7, 0x21, 0xd0, + 0x65, 0xa4, 0x29, 0xc1 }, + { 0x3d, 0x2e, 0xec, 0x4f, 0xe4, 0x1c, 0x84, 0x9b, + 0x80, 0xc8, 0xd8, 0x36, 0x62, 0xc0, 0xe4, 0x4a, + 0x8b, 0x29, 0x1a, 0x96, 0x4c, 0xf2, 0xf0, 0x70, + 0x38 }, + { 0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d, + 0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3 }, +}; + +int mbedtls_pkcs5_self_test( int verbose ) +{ + mbedtls_md_context_t sha1_ctx; + const mbedtls_md_info_t *info_sha1; + int ret, i; + unsigned char key[64]; + + mbedtls_md_init( &sha1_ctx ); + + info_sha1 = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ); + if( info_sha1 == NULL ) + { + ret = 1; + goto exit; + } + + if( ( ret = mbedtls_md_setup( &sha1_ctx, info_sha1, 1 ) ) != 0 ) + { + ret = 1; + goto exit; + } + + for( i = 0; i < MAX_TESTS; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " PBKDF2 (SHA1) #%d: ", i ); + + ret = mbedtls_pkcs5_pbkdf2_hmac( &sha1_ctx, password[i], plen[i], salt[i], + slen[i], it_cnt[i], key_len[i], key ); + if( ret != 0 || + memcmp( result_key[i], key, key_len[i] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +exit: + mbedtls_md_free( &sha1_ctx ); + + return( ret ); +} +#endif /* MBEDTLS_SHA1_C */ + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_PKCS5_C */ diff --git a/mbedtls/pkparse.c b/mbedtls/pkparse.c new file mode 100644 index 0000000..275429e --- /dev/null +++ b/mbedtls/pkparse.c @@ -0,0 +1,1293 @@ +/* + * Public Key layer for parsing key files and structures + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PK_PARSE_C) + +#include "mbedtls/pk.h" +#include "mbedtls/asn1.h" +#include "mbedtls/oid.h" + +#include + +#if defined(MBEDTLS_RSA_C) +#include "mbedtls/rsa.h" +#endif +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif +#if defined(MBEDTLS_ECDSA_C) +#include "mbedtls/ecdsa.h" +#endif +#if defined(MBEDTLS_PEM_PARSE_C) +#include "mbedtls/pem.h" +#endif +#if defined(MBEDTLS_PKCS5_C) +#include "mbedtls/pkcs5.h" +#endif +#if defined(MBEDTLS_PKCS12_C) +#include "mbedtls/pkcs12.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#if defined(MBEDTLS_FS_IO) +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Load all data from a file into a given buffer. + * + * The file is expected to contain either PEM or DER encoded data. + * A terminating null byte is always appended. It is included in the announced + * length only if the data looks like it is PEM encoded. + */ +int mbedtls_pk_load_file( const char *path, unsigned char **buf, size_t *n ) +{ + FILE *f; + long size; + + if( ( f = fopen( path, "rb" ) ) == NULL ) + return( MBEDTLS_ERR_PK_FILE_IO_ERROR ); + + fseek( f, 0, SEEK_END ); + if( ( size = ftell( f ) ) == -1 ) + { + fclose( f ); + return( MBEDTLS_ERR_PK_FILE_IO_ERROR ); + } + fseek( f, 0, SEEK_SET ); + + *n = (size_t) size; + + if( *n + 1 == 0 || + ( *buf = mbedtls_calloc( 1, *n + 1 ) ) == NULL ) + { + fclose( f ); + return( MBEDTLS_ERR_PK_ALLOC_FAILED ); + } + + if( fread( *buf, 1, *n, f ) != *n ) + { + fclose( f ); + mbedtls_free( *buf ); + return( MBEDTLS_ERR_PK_FILE_IO_ERROR ); + } + + fclose( f ); + + (*buf)[*n] = '\0'; + + if( strstr( (const char *) *buf, "-----BEGIN " ) != NULL ) + ++*n; + + return( 0 ); +} + +/* + * Load and parse a private key + */ +int mbedtls_pk_parse_keyfile( mbedtls_pk_context *ctx, + const char *path, const char *pwd ) +{ + int ret; + size_t n; + unsigned char *buf; + + if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) + return( ret ); + + if( pwd == NULL ) + ret = mbedtls_pk_parse_key( ctx, buf, n, NULL, 0 ); + else + ret = mbedtls_pk_parse_key( ctx, buf, n, + (const unsigned char *) pwd, strlen( pwd ) ); + + mbedtls_zeroize( buf, n ); + mbedtls_free( buf ); + + return( ret ); +} + +/* + * Load and parse a public key + */ +int mbedtls_pk_parse_public_keyfile( mbedtls_pk_context *ctx, const char *path ) +{ + int ret; + size_t n; + unsigned char *buf; + + if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) + return( ret ); + + ret = mbedtls_pk_parse_public_key( ctx, buf, n ); + + mbedtls_zeroize( buf, n ); + mbedtls_free( buf ); + + return( ret ); +} +#endif /* MBEDTLS_FS_IO */ + +#if defined(MBEDTLS_ECP_C) +/* Minimally parse an ECParameters buffer to and mbedtls_asn1_buf + * + * ECParameters ::= CHOICE { + * namedCurve OBJECT IDENTIFIER + * specifiedCurve SpecifiedECDomain -- = SEQUENCE { ... } + * -- implicitCurve NULL + * } + */ +static int pk_get_ecparams( unsigned char **p, const unsigned char *end, + mbedtls_asn1_buf *params ) +{ + int ret; + + /* Tag may be either OID or SEQUENCE */ + params->tag = **p; + if( params->tag != MBEDTLS_ASN1_OID +#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED) + && params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) +#endif + ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + } + + if( ( ret = mbedtls_asn1_get_tag( p, end, ¶ms->len, params->tag ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + params->p = *p; + *p += params->len; + + if( *p != end ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED) +/* + * Parse a SpecifiedECDomain (SEC 1 C.2) and (mostly) fill the group with it. + * WARNING: the resulting group should only be used with + * pk_group_id_from_specified(), since its base point may not be set correctly + * if it was encoded compressed. + * + * SpecifiedECDomain ::= SEQUENCE { + * version SpecifiedECDomainVersion(ecdpVer1 | ecdpVer2 | ecdpVer3, ...), + * fieldID FieldID {{FieldTypes}}, + * curve Curve, + * base ECPoint, + * order INTEGER, + * cofactor INTEGER OPTIONAL, + * hash HashAlgorithm OPTIONAL, + * ... + * } + * + * We only support prime-field as field type, and ignore hash and cofactor. + */ +static int pk_group_from_specified( const mbedtls_asn1_buf *params, mbedtls_ecp_group *grp ) +{ + int ret; + unsigned char *p = params->p; + const unsigned char * const end = params->p + params->len; + const unsigned char *end_field, *end_curve; + size_t len; + int ver; + + /* SpecifiedECDomainVersion ::= INTEGER { 1, 2, 3 } */ + if( ( ret = mbedtls_asn1_get_int( &p, end, &ver ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( ver < 1 || ver > 3 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT ); + + /* + * FieldID { FIELD-ID:IOSet } ::= SEQUENCE { -- Finite field + * fieldType FIELD-ID.&id({IOSet}), + * parameters FIELD-ID.&Type({IOSet}{@fieldType}) + * } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( ret ); + + end_field = p + len; + + /* + * FIELD-ID ::= TYPE-IDENTIFIER + * FieldTypes FIELD-ID ::= { + * { Prime-p IDENTIFIED BY prime-field } | + * { Characteristic-two IDENTIFIED BY characteristic-two-field } + * } + * prime-field OBJECT IDENTIFIER ::= { id-fieldType 1 } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end_field, &len, MBEDTLS_ASN1_OID ) ) != 0 ) + return( ret ); + + if( len != MBEDTLS_OID_SIZE( MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD ) || + memcmp( p, MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD, len ) != 0 ) + { + return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + } + + p += len; + + /* Prime-p ::= INTEGER -- Field of size p. */ + if( ( ret = mbedtls_asn1_get_mpi( &p, end_field, &grp->P ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + grp->pbits = mbedtls_mpi_bitlen( &grp->P ); + + if( p != end_field ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + /* + * Curve ::= SEQUENCE { + * a FieldElement, + * b FieldElement, + * seed BIT STRING OPTIONAL + * -- Shall be present if used in SpecifiedECDomain + * -- with version equal to ecdpVer2 or ecdpVer3 + * } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( ret ); + + end_curve = p + len; + + /* + * FieldElement ::= OCTET STRING + * containing an integer in the case of a prime field + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end_curve, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 || + ( ret = mbedtls_mpi_read_binary( &grp->A, p, len ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + p += len; + + if( ( ret = mbedtls_asn1_get_tag( &p, end_curve, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 || + ( ret = mbedtls_mpi_read_binary( &grp->B, p, len ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + p += len; + + /* Ignore seed BIT STRING OPTIONAL */ + if( ( ret = mbedtls_asn1_get_tag( &p, end_curve, &len, MBEDTLS_ASN1_BIT_STRING ) ) == 0 ) + p += len; + + if( p != end_curve ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + /* + * ECPoint ::= OCTET STRING + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( ( ret = mbedtls_ecp_point_read_binary( grp, &grp->G, + ( const unsigned char *) p, len ) ) != 0 ) + { + /* + * If we can't read the point because it's compressed, cheat by + * reading only the X coordinate and the parity bit of Y. + */ + if( ret != MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE || + ( p[0] != 0x02 && p[0] != 0x03 ) || + len != mbedtls_mpi_size( &grp->P ) + 1 || + mbedtls_mpi_read_binary( &grp->G.X, p + 1, len - 1 ) != 0 || + mbedtls_mpi_lset( &grp->G.Y, p[0] - 2 ) != 0 || + mbedtls_mpi_lset( &grp->G.Z, 1 ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT ); + } + } + + p += len; + + /* + * order INTEGER + */ + if( ( ret = mbedtls_asn1_get_mpi( &p, end, &grp->N ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + grp->nbits = mbedtls_mpi_bitlen( &grp->N ); + + /* + * Allow optional elements by purposefully not enforcing p == end here. + */ + + return( 0 ); +} + +/* + * Find the group id associated with an (almost filled) group as generated by + * pk_group_from_specified(), or return an error if unknown. + */ +static int pk_group_id_from_group( const mbedtls_ecp_group *grp, mbedtls_ecp_group_id *grp_id ) +{ + int ret = 0; + mbedtls_ecp_group ref; + const mbedtls_ecp_group_id *id; + + mbedtls_ecp_group_init( &ref ); + + for( id = mbedtls_ecp_grp_id_list(); *id != MBEDTLS_ECP_DP_NONE; id++ ) + { + /* Load the group associated to that id */ + mbedtls_ecp_group_free( &ref ); + MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &ref, *id ) ); + + /* Compare to the group we were given, starting with easy tests */ + if( grp->pbits == ref.pbits && grp->nbits == ref.nbits && + mbedtls_mpi_cmp_mpi( &grp->P, &ref.P ) == 0 && + mbedtls_mpi_cmp_mpi( &grp->A, &ref.A ) == 0 && + mbedtls_mpi_cmp_mpi( &grp->B, &ref.B ) == 0 && + mbedtls_mpi_cmp_mpi( &grp->N, &ref.N ) == 0 && + mbedtls_mpi_cmp_mpi( &grp->G.X, &ref.G.X ) == 0 && + mbedtls_mpi_cmp_mpi( &grp->G.Z, &ref.G.Z ) == 0 && + /* For Y we may only know the parity bit, so compare only that */ + mbedtls_mpi_get_bit( &grp->G.Y, 0 ) == mbedtls_mpi_get_bit( &ref.G.Y, 0 ) ) + { + break; + } + + } + +cleanup: + mbedtls_ecp_group_free( &ref ); + + *grp_id = *id; + + if( ret == 0 && *id == MBEDTLS_ECP_DP_NONE ) + ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE; + + return( ret ); +} + +/* + * Parse a SpecifiedECDomain (SEC 1 C.2) and find the associated group ID + */ +static int pk_group_id_from_specified( const mbedtls_asn1_buf *params, + mbedtls_ecp_group_id *grp_id ) +{ + int ret; + mbedtls_ecp_group grp; + + mbedtls_ecp_group_init( &grp ); + + if( ( ret = pk_group_from_specified( params, &grp ) ) != 0 ) + goto cleanup; + + ret = pk_group_id_from_group( &grp, grp_id ); + +cleanup: + mbedtls_ecp_group_free( &grp ); + + return( ret ); +} +#endif /* MBEDTLS_PK_PARSE_EC_EXTENDED */ + +/* + * Use EC parameters to initialise an EC group + * + * ECParameters ::= CHOICE { + * namedCurve OBJECT IDENTIFIER + * specifiedCurve SpecifiedECDomain -- = SEQUENCE { ... } + * -- implicitCurve NULL + */ +static int pk_use_ecparams( const mbedtls_asn1_buf *params, mbedtls_ecp_group *grp ) +{ + int ret; + mbedtls_ecp_group_id grp_id; + + if( params->tag == MBEDTLS_ASN1_OID ) + { + if( mbedtls_oid_get_ec_grp( params, &grp_id ) != 0 ) + return( MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE ); + } + else + { +#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED) + if( ( ret = pk_group_id_from_specified( params, &grp_id ) ) != 0 ) + return( ret ); +#else + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT ); +#endif + } + + /* + * grp may already be initilialized; if so, make sure IDs match + */ + if( grp->id != MBEDTLS_ECP_DP_NONE && grp->id != grp_id ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT ); + + if( ( ret = mbedtls_ecp_group_load( grp, grp_id ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +/* + * EC public key is an EC point + * + * The caller is responsible for clearing the structure upon failure if + * desired. Take care to pass along the possible ECP_FEATURE_UNAVAILABLE + * return code of mbedtls_ecp_point_read_binary() and leave p in a usable state. + */ +static int pk_get_ecpubkey( unsigned char **p, const unsigned char *end, + mbedtls_ecp_keypair *key ) +{ + int ret; + + if( ( ret = mbedtls_ecp_point_read_binary( &key->grp, &key->Q, + (const unsigned char *) *p, end - *p ) ) == 0 ) + { + ret = mbedtls_ecp_check_pubkey( &key->grp, &key->Q ); + } + + /* + * We know mbedtls_ecp_point_read_binary consumed all bytes or failed + */ + *p = (unsigned char *) end; + + return( ret ); +} +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_RSA_C) +/* + * RSAPublicKey ::= SEQUENCE { + * modulus INTEGER, -- n + * publicExponent INTEGER -- e + * } + */ +static int pk_get_rsapubkey( unsigned char **p, + const unsigned char *end, + mbedtls_rsa_context *rsa ) +{ + int ret; + size_t len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_PK_INVALID_PUBKEY + ret ); + + if( *p + len != end ) + return( MBEDTLS_ERR_PK_INVALID_PUBKEY + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + if( ( ret = mbedtls_asn1_get_mpi( p, end, &rsa->N ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( p, end, &rsa->E ) ) != 0 ) + return( MBEDTLS_ERR_PK_INVALID_PUBKEY + ret ); + + if( *p != end ) + return( MBEDTLS_ERR_PK_INVALID_PUBKEY + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + if( ( ret = mbedtls_rsa_check_pubkey( rsa ) ) != 0 ) + return( MBEDTLS_ERR_PK_INVALID_PUBKEY ); + + rsa->len = mbedtls_mpi_size( &rsa->N ); + + return( 0 ); +} +#endif /* MBEDTLS_RSA_C */ + +/* Get a PK algorithm identifier + * + * AlgorithmIdentifier ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL } + */ +static int pk_get_pk_alg( unsigned char **p, + const unsigned char *end, + mbedtls_pk_type_t *pk_alg, mbedtls_asn1_buf *params ) +{ + int ret; + mbedtls_asn1_buf alg_oid; + + memset( params, 0, sizeof(mbedtls_asn1_buf) ); + + if( ( ret = mbedtls_asn1_get_alg( p, end, &alg_oid, params ) ) != 0 ) + return( MBEDTLS_ERR_PK_INVALID_ALG + ret ); + + if( mbedtls_oid_get_pk_alg( &alg_oid, pk_alg ) != 0 ) + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + /* + * No parameters with RSA (only for EC) + */ + if( *pk_alg == MBEDTLS_PK_RSA && + ( ( params->tag != MBEDTLS_ASN1_NULL && params->tag != 0 ) || + params->len != 0 ) ) + { + return( MBEDTLS_ERR_PK_INVALID_ALG ); + } + + return( 0 ); +} + +/* + * SubjectPublicKeyInfo ::= SEQUENCE { + * algorithm AlgorithmIdentifier, + * subjectPublicKey BIT STRING } + */ +int mbedtls_pk_parse_subpubkey( unsigned char **p, const unsigned char *end, + mbedtls_pk_context *pk ) +{ + int ret; + size_t len; + mbedtls_asn1_buf alg_params; + mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE; + const mbedtls_pk_info_t *pk_info; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + end = *p + len; + + if( ( ret = pk_get_pk_alg( p, end, &pk_alg, &alg_params ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_asn1_get_bitstring_null( p, end, &len ) ) != 0 ) + return( MBEDTLS_ERR_PK_INVALID_PUBKEY + ret ); + + if( *p + len != end ) + return( MBEDTLS_ERR_PK_INVALID_PUBKEY + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + if( ( pk_info = mbedtls_pk_info_from_type( pk_alg ) ) == NULL ) + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 ) + return( ret ); + +#if defined(MBEDTLS_RSA_C) + if( pk_alg == MBEDTLS_PK_RSA ) + { + ret = pk_get_rsapubkey( p, end, mbedtls_pk_rsa( *pk ) ); + } else +#endif /* MBEDTLS_RSA_C */ +#if defined(MBEDTLS_ECP_C) + if( pk_alg == MBEDTLS_PK_ECKEY_DH || pk_alg == MBEDTLS_PK_ECKEY ) + { + ret = pk_use_ecparams( &alg_params, &mbedtls_pk_ec( *pk )->grp ); + if( ret == 0 ) + ret = pk_get_ecpubkey( p, end, mbedtls_pk_ec( *pk ) ); + } else +#endif /* MBEDTLS_ECP_C */ + ret = MBEDTLS_ERR_PK_UNKNOWN_PK_ALG; + + if( ret == 0 && *p != end ) + ret = MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH; + + if( ret != 0 ) + mbedtls_pk_free( pk ); + + return( ret ); +} + +#if defined(MBEDTLS_RSA_C) +/* + * Parse a PKCS#1 encoded private RSA key + */ +static int pk_parse_key_pkcs1_der( mbedtls_rsa_context *rsa, + const unsigned char *key, + size_t keylen ) +{ + int ret; + size_t len; + unsigned char *p, *end; + + p = (unsigned char *) key; + end = p + keylen; + + /* + * This function parses the RSAPrivateKey (PKCS#1) + * + * RSAPrivateKey ::= SEQUENCE { + * version Version, + * modulus INTEGER, -- n + * publicExponent INTEGER, -- e + * privateExponent INTEGER, -- d + * prime1 INTEGER, -- p + * prime2 INTEGER, -- q + * exponent1 INTEGER, -- d mod (p-1) + * exponent2 INTEGER, -- d mod (q-1) + * coefficient INTEGER, -- (inverse of q) mod p + * otherPrimeInfos OtherPrimeInfos OPTIONAL + * } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + end = p + len; + + if( ( ret = mbedtls_asn1_get_int( &p, end, &rsa->ver ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + if( rsa->ver != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_VERSION ); + } + + if( ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->N ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->E ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->D ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->P ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->Q ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->DP ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->DQ ) ) != 0 || + ( ret = mbedtls_asn1_get_mpi( &p, end, &rsa->QP ) ) != 0 ) + { + mbedtls_rsa_free( rsa ); + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + rsa->len = mbedtls_mpi_size( &rsa->N ); + + if( p != end ) + { + mbedtls_rsa_free( rsa ); + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + if( ( ret = mbedtls_rsa_check_privkey( rsa ) ) != 0 ) + { + mbedtls_rsa_free( rsa ); + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) +/* + * Parse a SEC1 encoded private EC key + */ +static int pk_parse_key_sec1_der( mbedtls_ecp_keypair *eck, + const unsigned char *key, + size_t keylen ) +{ + int ret; + int version, pubkey_done; + size_t len; + mbedtls_asn1_buf params; + unsigned char *p = (unsigned char *) key; + unsigned char *end = p + keylen; + unsigned char *end2; + + /* + * RFC 5915, or SEC1 Appendix C.4 + * + * ECPrivateKey ::= SEQUENCE { + * version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1), + * privateKey OCTET STRING, + * parameters [0] ECParameters {{ NamedCurve }} OPTIONAL, + * publicKey [1] BIT STRING OPTIONAL + * } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + end = p + len; + + if( ( ret = mbedtls_asn1_get_int( &p, end, &version ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( version != 1 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_VERSION ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( ( ret = mbedtls_mpi_read_binary( &eck->d, p, len ) ) != 0 ) + { + mbedtls_ecp_keypair_free( eck ); + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + p += len; + + pubkey_done = 0; + if( p != end ) + { + /* + * Is 'parameters' present? + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) == 0 ) + { + if( ( ret = pk_get_ecparams( &p, p + len, ¶ms) ) != 0 || + ( ret = pk_use_ecparams( ¶ms, &eck->grp ) ) != 0 ) + { + mbedtls_ecp_keypair_free( eck ); + return( ret ); + } + } + else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + { + mbedtls_ecp_keypair_free( eck ); + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + /* + * Is 'publickey' present? If not, or if we can't read it (eg because it + * is compressed), create it from the private key. + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ) == 0 ) + { + end2 = p + len; + + if( ( ret = mbedtls_asn1_get_bitstring_null( &p, end2, &len ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( p + len != end2 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + if( ( ret = pk_get_ecpubkey( &p, end2, eck ) ) == 0 ) + pubkey_done = 1; + else + { + /* + * The only acceptable failure mode of pk_get_ecpubkey() above + * is if the point format is not recognized. + */ + if( ret != MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT ); + } + } + else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + { + mbedtls_ecp_keypair_free( eck ); + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + } + + if( ! pubkey_done && + ( ret = mbedtls_ecp_mul( &eck->grp, &eck->Q, &eck->d, &eck->grp.G, + NULL, NULL ) ) != 0 ) + { + mbedtls_ecp_keypair_free( eck ); + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + if( ( ret = mbedtls_ecp_check_privkey( &eck->grp, &eck->d ) ) != 0 ) + { + mbedtls_ecp_keypair_free( eck ); + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_ECP_C */ + +/* + * Parse an unencrypted PKCS#8 encoded private key + */ +static int pk_parse_key_pkcs8_unencrypted_der( + mbedtls_pk_context *pk, + const unsigned char* key, + size_t keylen ) +{ + int ret, version; + size_t len; + mbedtls_asn1_buf params; + unsigned char *p = (unsigned char *) key; + unsigned char *end = p + keylen; + mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE; + const mbedtls_pk_info_t *pk_info; + + /* + * This function parses the PrivatKeyInfo object (PKCS#8 v1.2 = RFC 5208) + * + * PrivateKeyInfo ::= SEQUENCE { + * version Version, + * privateKeyAlgorithm PrivateKeyAlgorithmIdentifier, + * privateKey PrivateKey, + * attributes [0] IMPLICIT Attributes OPTIONAL } + * + * Version ::= INTEGER + * PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier + * PrivateKey ::= OCTET STRING + * + * The PrivateKey OCTET STRING is a SEC1 ECPrivateKey + */ + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + end = p + len; + + if( ( ret = mbedtls_asn1_get_int( &p, end, &version ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( version != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_VERSION + ret ); + + if( ( ret = pk_get_pk_alg( &p, end, &pk_alg, ¶ms ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( len < 1 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + if( ( pk_info = mbedtls_pk_info_from_type( pk_alg ) ) == NULL ) + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 ) + return( ret ); + +#if defined(MBEDTLS_RSA_C) + if( pk_alg == MBEDTLS_PK_RSA ) + { + if( ( ret = pk_parse_key_pkcs1_der( mbedtls_pk_rsa( *pk ), p, len ) ) != 0 ) + { + mbedtls_pk_free( pk ); + return( ret ); + } + } else +#endif /* MBEDTLS_RSA_C */ +#if defined(MBEDTLS_ECP_C) + if( pk_alg == MBEDTLS_PK_ECKEY || pk_alg == MBEDTLS_PK_ECKEY_DH ) + { + if( ( ret = pk_use_ecparams( ¶ms, &mbedtls_pk_ec( *pk )->grp ) ) != 0 || + ( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ), p, len ) ) != 0 ) + { + mbedtls_pk_free( pk ); + return( ret ); + } + } else +#endif /* MBEDTLS_ECP_C */ + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + return( 0 ); +} + +/* + * Parse an encrypted PKCS#8 encoded private key + */ +#if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C) +static int pk_parse_key_pkcs8_encrypted_der( + mbedtls_pk_context *pk, + const unsigned char *key, size_t keylen, + const unsigned char *pwd, size_t pwdlen ) +{ + int ret, decrypted = 0; + size_t len; + unsigned char buf[2048]; + unsigned char *p, *end; + mbedtls_asn1_buf pbe_alg_oid, pbe_params; +#if defined(MBEDTLS_PKCS12_C) + mbedtls_cipher_type_t cipher_alg; + mbedtls_md_type_t md_alg; +#endif + + memset( buf, 0, sizeof( buf ) ); + + p = (unsigned char *) key; + end = p + keylen; + + if( pwdlen == 0 ) + return( MBEDTLS_ERR_PK_PASSWORD_REQUIRED ); + + /* + * This function parses the EncryptedPrivatKeyInfo object (PKCS#8) + * + * EncryptedPrivateKeyInfo ::= SEQUENCE { + * encryptionAlgorithm EncryptionAlgorithmIdentifier, + * encryptedData EncryptedData + * } + * + * EncryptionAlgorithmIdentifier ::= AlgorithmIdentifier + * + * EncryptedData ::= OCTET STRING + * + * The EncryptedData OCTET STRING is a PKCS#8 PrivateKeyInfo + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + } + + end = p + len; + + if( ( ret = mbedtls_asn1_get_alg( &p, end, &pbe_alg_oid, &pbe_params ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret ); + + if( len > sizeof( buf ) ) + return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + + /* + * Decrypt EncryptedData with appropriate PDE + */ +#if defined(MBEDTLS_PKCS12_C) + if( mbedtls_oid_get_pkcs12_pbe_alg( &pbe_alg_oid, &md_alg, &cipher_alg ) == 0 ) + { + if( ( ret = mbedtls_pkcs12_pbe( &pbe_params, MBEDTLS_PKCS12_PBE_DECRYPT, + cipher_alg, md_alg, + pwd, pwdlen, p, len, buf ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH ) + return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH ); + + return( ret ); + } + + decrypted = 1; + } + else if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_128, &pbe_alg_oid ) == 0 ) + { + if( ( ret = mbedtls_pkcs12_pbe_sha1_rc4_128( &pbe_params, + MBEDTLS_PKCS12_PBE_DECRYPT, + pwd, pwdlen, + p, len, buf ) ) != 0 ) + { + return( ret ); + } + + // Best guess for password mismatch when using RC4. If first tag is + // not MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE + // + if( *buf != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) + return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH ); + + decrypted = 1; + } + else +#endif /* MBEDTLS_PKCS12_C */ +#if defined(MBEDTLS_PKCS5_C) + if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS5_PBES2, &pbe_alg_oid ) == 0 ) + { + if( ( ret = mbedtls_pkcs5_pbes2( &pbe_params, MBEDTLS_PKCS5_DECRYPT, pwd, pwdlen, + p, len, buf ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH ) + return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH ); + + return( ret ); + } + + decrypted = 1; + } + else +#endif /* MBEDTLS_PKCS5_C */ + { + ((void) pwd); + } + + if( decrypted == 0 ) + return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + + return( pk_parse_key_pkcs8_unencrypted_der( pk, buf, len ) ); +} +#endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */ + +/* + * Parse a private key + */ +int mbedtls_pk_parse_key( mbedtls_pk_context *pk, + const unsigned char *key, size_t keylen, + const unsigned char *pwd, size_t pwdlen ) +{ + int ret; + const mbedtls_pk_info_t *pk_info; + +#if defined(MBEDTLS_PEM_PARSE_C) + size_t len; + mbedtls_pem_context pem; + + mbedtls_pem_init( &pem ); + +#if defined(MBEDTLS_RSA_C) + /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ + if( keylen == 0 || key[keylen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN RSA PRIVATE KEY-----", + "-----END RSA PRIVATE KEY-----", + key, pwd, pwdlen, &len ); + + if( ret == 0 ) + { + if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == NULL ) + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 || + ( ret = pk_parse_key_pkcs1_der( mbedtls_pk_rsa( *pk ), + pem.buf, pem.buflen ) ) != 0 ) + { + mbedtls_pk_free( pk ); + } + + mbedtls_pem_free( &pem ); + return( ret ); + } + else if( ret == MBEDTLS_ERR_PEM_PASSWORD_MISMATCH ) + return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH ); + else if( ret == MBEDTLS_ERR_PEM_PASSWORD_REQUIRED ) + return( MBEDTLS_ERR_PK_PASSWORD_REQUIRED ); + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + return( ret ); +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) + /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ + if( keylen == 0 || key[keylen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN EC PRIVATE KEY-----", + "-----END EC PRIVATE KEY-----", + key, pwd, pwdlen, &len ); + if( ret == 0 ) + { + if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_ECKEY ) ) == NULL ) + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 || + ( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ), + pem.buf, pem.buflen ) ) != 0 ) + { + mbedtls_pk_free( pk ); + } + + mbedtls_pem_free( &pem ); + return( ret ); + } + else if( ret == MBEDTLS_ERR_PEM_PASSWORD_MISMATCH ) + return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH ); + else if( ret == MBEDTLS_ERR_PEM_PASSWORD_REQUIRED ) + return( MBEDTLS_ERR_PK_PASSWORD_REQUIRED ); + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + return( ret ); +#endif /* MBEDTLS_ECP_C */ + + /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ + if( keylen == 0 || key[keylen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN PRIVATE KEY-----", + "-----END PRIVATE KEY-----", + key, NULL, 0, &len ); + if( ret == 0 ) + { + if( ( ret = pk_parse_key_pkcs8_unencrypted_der( pk, + pem.buf, pem.buflen ) ) != 0 ) + { + mbedtls_pk_free( pk ); + } + + mbedtls_pem_free( &pem ); + return( ret ); + } + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + return( ret ); + +#if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C) + /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ + if( keylen == 0 || key[keylen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN ENCRYPTED PRIVATE KEY-----", + "-----END ENCRYPTED PRIVATE KEY-----", + key, NULL, 0, &len ); + if( ret == 0 ) + { + if( ( ret = pk_parse_key_pkcs8_encrypted_der( pk, + pem.buf, pem.buflen, + pwd, pwdlen ) ) != 0 ) + { + mbedtls_pk_free( pk ); + } + + mbedtls_pem_free( &pem ); + return( ret ); + } + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + return( ret ); +#endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */ +#else + ((void) ret); + ((void) pwd); + ((void) pwdlen); +#endif /* MBEDTLS_PEM_PARSE_C */ + + /* + * At this point we only know it's not a PEM formatted key. Could be any + * of the known DER encoded private key formats + * + * We try the different DER format parsers to see if one passes without + * error + */ +#if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C) + if( ( ret = pk_parse_key_pkcs8_encrypted_der( pk, key, keylen, + pwd, pwdlen ) ) == 0 ) + { + return( 0 ); + } + + mbedtls_pk_free( pk ); + + if( ret == MBEDTLS_ERR_PK_PASSWORD_MISMATCH ) + { + return( ret ); + } +#endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */ + + if( ( ret = pk_parse_key_pkcs8_unencrypted_der( pk, key, keylen ) ) == 0 ) + return( 0 ); + + mbedtls_pk_free( pk ); + +#if defined(MBEDTLS_RSA_C) + if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == NULL ) + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 || + ( ret = pk_parse_key_pkcs1_der( mbedtls_pk_rsa( *pk ), key, keylen ) ) == 0 ) + { + return( 0 ); + } + + mbedtls_pk_free( pk ); +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) + if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_ECKEY ) ) == NULL ) + return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG ); + + if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 || + ( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ), key, keylen ) ) == 0 ) + { + return( 0 ); + } + + mbedtls_pk_free( pk ); +#endif /* MBEDTLS_ECP_C */ + + return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT ); +} + +/* + * Parse a public key + */ +int mbedtls_pk_parse_public_key( mbedtls_pk_context *ctx, + const unsigned char *key, size_t keylen ) +{ + int ret; + unsigned char *p; +#if defined(MBEDTLS_PEM_PARSE_C) + size_t len; + mbedtls_pem_context pem; + + mbedtls_pem_init( &pem ); + + /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ + if( keylen == 0 || key[keylen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN PUBLIC KEY-----", + "-----END PUBLIC KEY-----", + key, NULL, 0, &len ); + + if( ret == 0 ) + { + /* + * Was PEM encoded + */ + key = pem.buf; + keylen = pem.buflen; + } + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + { + mbedtls_pem_free( &pem ); + return( ret ); + } +#endif /* MBEDTLS_PEM_PARSE_C */ + p = (unsigned char *) key; + + ret = mbedtls_pk_parse_subpubkey( &p, p + keylen, ctx ); + +#if defined(MBEDTLS_PEM_PARSE_C) + mbedtls_pem_free( &pem ); +#endif + + return( ret ); +} + +#endif /* MBEDTLS_PK_PARSE_C */ diff --git a/mbedtls/pkwrite.c b/mbedtls/pkwrite.c new file mode 100644 index 0000000..83b798c --- /dev/null +++ b/mbedtls/pkwrite.c @@ -0,0 +1,439 @@ +/* + * Public Key layer for writing key files and structures + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PK_WRITE_C) + +#include "mbedtls/pk.h" +#include "mbedtls/asn1write.h" +#include "mbedtls/oid.h" + +#include + +#if defined(MBEDTLS_RSA_C) +#include "mbedtls/rsa.h" +#endif +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif +#if defined(MBEDTLS_ECDSA_C) +#include "mbedtls/ecdsa.h" +#endif +#if defined(MBEDTLS_PEM_WRITE_C) +#include "mbedtls/pem.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#if defined(MBEDTLS_RSA_C) +/* + * RSAPublicKey ::= SEQUENCE { + * modulus INTEGER, -- n + * publicExponent INTEGER -- e + * } + */ +static int pk_write_rsa_pubkey( unsigned char **p, unsigned char *start, + mbedtls_rsa_context *rsa ) +{ + int ret; + size_t len = 0; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( p, start, &rsa->E ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( p, start, &rsa->N ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return( (int) len ); +} +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) +/* + * EC public key is an EC point + */ +static int pk_write_ec_pubkey( unsigned char **p, unsigned char *start, + mbedtls_ecp_keypair *ec ) +{ + int ret; + size_t len = 0; + unsigned char buf[MBEDTLS_ECP_MAX_PT_LEN]; + + if( ( ret = mbedtls_ecp_point_write_binary( &ec->grp, &ec->Q, + MBEDTLS_ECP_PF_UNCOMPRESSED, + &len, buf, sizeof( buf ) ) ) != 0 ) + { + return( ret ); + } + + if( *p < start || (size_t)( *p - start ) < len ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *p -= len; + memcpy( *p, buf, len ); + + return( (int) len ); +} + +/* + * ECParameters ::= CHOICE { + * namedCurve OBJECT IDENTIFIER + * } + */ +static int pk_write_ec_param( unsigned char **p, unsigned char *start, + mbedtls_ecp_keypair *ec ) +{ + int ret; + size_t len = 0; + const char *oid; + size_t oid_len; + + if( ( ret = mbedtls_oid_get_oid_by_ec_grp( ec->grp.id, &oid, &oid_len ) ) != 0 ) + return( ret ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) ); + + return( (int) len ); +} +#endif /* MBEDTLS_ECP_C */ + +int mbedtls_pk_write_pubkey( unsigned char **p, unsigned char *start, + const mbedtls_pk_context *key ) +{ + int ret; + size_t len = 0; + +#if defined(MBEDTLS_RSA_C) + if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA ) + MBEDTLS_ASN1_CHK_ADD( len, pk_write_rsa_pubkey( p, start, mbedtls_pk_rsa( *key ) ) ); + else +#endif +#if defined(MBEDTLS_ECP_C) + if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY ) + MBEDTLS_ASN1_CHK_ADD( len, pk_write_ec_pubkey( p, start, mbedtls_pk_ec( *key ) ) ); + else +#endif + return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + + return( (int) len ); +} + +int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +{ + int ret; + unsigned char *c; + size_t len = 0, par_len = 0, oid_len; + const char *oid; + + c = buf + size; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, key ) ); + + if( c - buf < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + /* + * SubjectPublicKeyInfo ::= SEQUENCE { + * algorithm AlgorithmIdentifier, + * subjectPublicKey BIT STRING } + */ + *--c = 0; + len += 1; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) ); + + if( ( ret = mbedtls_oid_get_oid_by_pk_alg( mbedtls_pk_get_type( key ), + &oid, &oid_len ) ) != 0 ) + { + return( ret ); + } + +#if defined(MBEDTLS_ECP_C) + if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY ) + { + MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, mbedtls_pk_ec( *key ) ) ); + } +#endif + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, buf, oid, oid_len, + par_len ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return( (int) len ); +} + +int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +{ + int ret; + unsigned char *c = buf + size; + size_t len = 0; + +#if defined(MBEDTLS_RSA_C) + if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA ) + { + mbedtls_rsa_context *rsa = mbedtls_pk_rsa( *key ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->QP ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->DQ ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->DP ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->Q ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->P ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->D ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->E ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &rsa->N ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 0 ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + } + else +#endif /* MBEDTLS_RSA_C */ +#if defined(MBEDTLS_ECP_C) + if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY ) + { + mbedtls_ecp_keypair *ec = mbedtls_pk_ec( *key ); + size_t pub_len = 0, par_len = 0; + + /* + * RFC 5915, or SEC1 Appendix C.4 + * + * ECPrivateKey ::= SEQUENCE { + * version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1), + * privateKey OCTET STRING, + * parameters [0] ECParameters {{ NamedCurve }} OPTIONAL, + * publicKey [1] BIT STRING OPTIONAL + * } + */ + + /* publicKey */ + MBEDTLS_ASN1_CHK_ADD( pub_len, pk_write_ec_pubkey( &c, buf, ec ) ); + + if( c - buf < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + *--c = 0; + pub_len += 1; + + MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) ); + MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) ); + + MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) ); + MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ); + len += pub_len; + + /* parameters */ + MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, ec ) ); + + MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_len( &c, buf, par_len ) ); + MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_tag( &c, buf, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ); + len += par_len; + + /* privateKey: write as MPI then fix tag */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &ec->d ) ); + *c = MBEDTLS_ASN1_OCTET_STRING; + + /* version */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 1 ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + } + else +#endif /* MBEDTLS_ECP_C */ + return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + + return( (int) len ); +} + +#if defined(MBEDTLS_PEM_WRITE_C) + +#define PEM_BEGIN_PUBLIC_KEY "-----BEGIN PUBLIC KEY-----\n" +#define PEM_END_PUBLIC_KEY "-----END PUBLIC KEY-----\n" + +#define PEM_BEGIN_PRIVATE_KEY_RSA "-----BEGIN RSA PRIVATE KEY-----\n" +#define PEM_END_PRIVATE_KEY_RSA "-----END RSA PRIVATE KEY-----\n" +#define PEM_BEGIN_PRIVATE_KEY_EC "-----BEGIN EC PRIVATE KEY-----\n" +#define PEM_END_PRIVATE_KEY_EC "-----END EC PRIVATE KEY-----\n" + +/* + * Max sizes of key per types. Shown as tag + len (+ content). + */ + +#if defined(MBEDTLS_RSA_C) +/* + * RSA public keys: + * SubjectPublicKeyInfo ::= SEQUENCE { 1 + 3 + * algorithm AlgorithmIdentifier, 1 + 1 (sequence) + * + 1 + 1 + 9 (rsa oid) + * + 1 + 1 (params null) + * subjectPublicKey BIT STRING } 1 + 3 + (1 + below) + * RSAPublicKey ::= SEQUENCE { 1 + 3 + * modulus INTEGER, -- n 1 + 3 + MPI_MAX + 1 + * publicExponent INTEGER -- e 1 + 3 + MPI_MAX + 1 + * } + */ +#define RSA_PUB_DER_MAX_BYTES 38 + 2 * MBEDTLS_MPI_MAX_SIZE + +/* + * RSA private keys: + * RSAPrivateKey ::= SEQUENCE { 1 + 3 + * version Version, 1 + 1 + 1 + * modulus INTEGER, 1 + 3 + MPI_MAX + 1 + * publicExponent INTEGER, 1 + 3 + MPI_MAX + 1 + * privateExponent INTEGER, 1 + 3 + MPI_MAX + 1 + * prime1 INTEGER, 1 + 3 + MPI_MAX / 2 + 1 + * prime2 INTEGER, 1 + 3 + MPI_MAX / 2 + 1 + * exponent1 INTEGER, 1 + 3 + MPI_MAX / 2 + 1 + * exponent2 INTEGER, 1 + 3 + MPI_MAX / 2 + 1 + * coefficient INTEGER, 1 + 3 + MPI_MAX / 2 + 1 + * otherPrimeInfos OtherPrimeInfos OPTIONAL 0 (not supported) + * } + */ +#define MPI_MAX_SIZE_2 MBEDTLS_MPI_MAX_SIZE / 2 + \ + MBEDTLS_MPI_MAX_SIZE % 2 +#define RSA_PRV_DER_MAX_BYTES 47 + 3 * MBEDTLS_MPI_MAX_SIZE \ + + 5 * MPI_MAX_SIZE_2 + +#else /* MBEDTLS_RSA_C */ + +#define RSA_PUB_DER_MAX_BYTES 0 +#define RSA_PRV_DER_MAX_BYTES 0 + +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) +/* + * EC public keys: + * SubjectPublicKeyInfo ::= SEQUENCE { 1 + 2 + * algorithm AlgorithmIdentifier, 1 + 1 (sequence) + * + 1 + 1 + 7 (ec oid) + * + 1 + 1 + 9 (namedCurve oid) + * subjectPublicKey BIT STRING 1 + 2 + 1 [1] + * + 1 (point format) [1] + * + 2 * ECP_MAX (coords) [1] + * } + */ +#define ECP_PUB_DER_MAX_BYTES 30 + 2 * MBEDTLS_ECP_MAX_BYTES + +/* + * EC private keys: + * ECPrivateKey ::= SEQUENCE { 1 + 2 + * version INTEGER , 1 + 1 + 1 + * privateKey OCTET STRING, 1 + 1 + ECP_MAX + * parameters [0] ECParameters OPTIONAL, 1 + 1 + (1 + 1 + 9) + * publicKey [1] BIT STRING OPTIONAL 1 + 2 + [1] above + * } + */ +#define ECP_PRV_DER_MAX_BYTES 29 + 3 * MBEDTLS_ECP_MAX_BYTES + +#else /* MBEDTLS_ECP_C */ + +#define ECP_PUB_DER_MAX_BYTES 0 +#define ECP_PRV_DER_MAX_BYTES 0 + +#endif /* MBEDTLS_ECP_C */ + +#define PUB_DER_MAX_BYTES RSA_PUB_DER_MAX_BYTES > ECP_PUB_DER_MAX_BYTES ? \ + RSA_PUB_DER_MAX_BYTES : ECP_PUB_DER_MAX_BYTES +#define PRV_DER_MAX_BYTES RSA_PRV_DER_MAX_BYTES > ECP_PRV_DER_MAX_BYTES ? \ + RSA_PRV_DER_MAX_BYTES : ECP_PRV_DER_MAX_BYTES + +int mbedtls_pk_write_pubkey_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +{ + int ret; + unsigned char output_buf[PUB_DER_MAX_BYTES]; + size_t olen = 0; + + if( ( ret = mbedtls_pk_write_pubkey_der( key, output_buf, + sizeof(output_buf) ) ) < 0 ) + { + return( ret ); + } + + if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_PUBLIC_KEY, PEM_END_PUBLIC_KEY, + output_buf + sizeof(output_buf) - ret, + ret, buf, size, &olen ) ) != 0 ) + { + return( ret ); + } + + return( 0 ); +} + +int mbedtls_pk_write_key_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +{ + int ret; + unsigned char output_buf[PRV_DER_MAX_BYTES]; + const char *begin, *end; + size_t olen = 0; + + if( ( ret = mbedtls_pk_write_key_der( key, output_buf, sizeof(output_buf) ) ) < 0 ) + return( ret ); + +#if defined(MBEDTLS_RSA_C) + if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA ) + { + begin = PEM_BEGIN_PRIVATE_KEY_RSA; + end = PEM_END_PRIVATE_KEY_RSA; + } + else +#endif +#if defined(MBEDTLS_ECP_C) + if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY ) + { + begin = PEM_BEGIN_PRIVATE_KEY_EC; + end = PEM_END_PRIVATE_KEY_EC; + } + else +#endif + return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + + if( ( ret = mbedtls_pem_write_buffer( begin, end, + output_buf + sizeof(output_buf) - ret, + ret, buf, size, &olen ) ) != 0 ) + { + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_PEM_WRITE_C */ + +#endif /* MBEDTLS_PK_WRITE_C */ diff --git a/mbedtls/platform.c b/mbedtls/platform.c new file mode 100644 index 0000000..2591c45 --- /dev/null +++ b/mbedtls/platform.c @@ -0,0 +1,307 @@ +/* + * Platform abstraction layer + * + * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PLATFORM_C) + +#include "mbedtls/platform.h" + +#if defined(MBEDTLS_PLATFORM_MEMORY) +#if !defined(MBEDTLS_PLATFORM_STD_CALLOC) +static void *platform_calloc_uninit( size_t n, size_t size ) +{ + ((void) n); + ((void) size); + return( NULL ); +} + +#define MBEDTLS_PLATFORM_STD_CALLOC platform_calloc_uninit +#endif /* !MBEDTLS_PLATFORM_STD_CALLOC */ + +#if !defined(MBEDTLS_PLATFORM_STD_FREE) +static void platform_free_uninit( void *ptr ) +{ + ((void) ptr); +} + +#define MBEDTLS_PLATFORM_STD_FREE platform_free_uninit +#endif /* !MBEDTLS_PLATFORM_STD_FREE */ + +void * (*mbedtls_calloc)( size_t, size_t ) = MBEDTLS_PLATFORM_STD_CALLOC; +void (*mbedtls_free)( void * ) = MBEDTLS_PLATFORM_STD_FREE; + +int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ), + void (*free_func)( void * ) ) +{ + mbedtls_calloc = calloc_func; + mbedtls_free = free_func; + return( 0 ); +} +#endif /* MBEDTLS_PLATFORM_MEMORY */ + +#if defined(_WIN32) +#include +int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... ) +{ + int ret; + va_list argp; + + /* Avoid calling the invalid parameter handler by checking ourselves */ + if( s == NULL || n == 0 || fmt == NULL ) + return( -1 ); + + va_start( argp, fmt ); +#if defined(_TRUNCATE) + ret = _vsnprintf_s( s, n, _TRUNCATE, fmt, argp ); +#else + ret = _vsnprintf( s, n, fmt, argp ); + if( ret < 0 || (size_t) ret == n ) + { + s[n-1] = '\0'; + ret = -1; + } +#endif + va_end( argp ); + + return( ret ); +} +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) +#if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF) +/* + * Make dummy function to prevent NULL pointer dereferences + */ +static int platform_snprintf_uninit( char * s, size_t n, + const char * format, ... ) +{ + ((void) s); + ((void) n); + ((void) format); + return( 0 ); +} + +#define MBEDTLS_PLATFORM_STD_SNPRINTF platform_snprintf_uninit +#endif /* !MBEDTLS_PLATFORM_STD_SNPRINTF */ + +int (*mbedtls_snprintf)( char * s, size_t n, + const char * format, + ... ) = MBEDTLS_PLATFORM_STD_SNPRINTF; + +int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n, + const char * format, + ... ) ) +{ + mbedtls_snprintf = snprintf_func; + return( 0 ); +} +#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */ + +#if defined(MBEDTLS_PLATFORM_PRINTF_ALT) +#if !defined(MBEDTLS_PLATFORM_STD_PRINTF) +/* + * Make dummy function to prevent NULL pointer dereferences + */ +static int platform_printf_uninit( const char *format, ... ) +{ + ((void) format); + return( 0 ); +} + +#define MBEDTLS_PLATFORM_STD_PRINTF platform_printf_uninit +#endif /* !MBEDTLS_PLATFORM_STD_PRINTF */ + +int (*mbedtls_printf)( const char *, ... ) = MBEDTLS_PLATFORM_STD_PRINTF; + +int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) ) +{ + mbedtls_printf = printf_func; + return( 0 ); +} +#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */ + +#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) +#if !defined(MBEDTLS_PLATFORM_STD_FPRINTF) +/* + * Make dummy function to prevent NULL pointer dereferences + */ +static int platform_fprintf_uninit( FILE *stream, const char *format, ... ) +{ + ((void) stream); + ((void) format); + return( 0 ); +} + +#define MBEDTLS_PLATFORM_STD_FPRINTF platform_fprintf_uninit +#endif /* !MBEDTLS_PLATFORM_STD_FPRINTF */ + +int (*mbedtls_fprintf)( FILE *, const char *, ... ) = + MBEDTLS_PLATFORM_STD_FPRINTF; + +int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *, const char *, ... ) ) +{ + mbedtls_fprintf = fprintf_func; + return( 0 ); +} +#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */ + +#if defined(MBEDTLS_PLATFORM_EXIT_ALT) +#if !defined(MBEDTLS_PLATFORM_STD_EXIT) +/* + * Make dummy function to prevent NULL pointer dereferences + */ +static void platform_exit_uninit( int status ) +{ + ((void) status); +} + +#define MBEDTLS_PLATFORM_STD_EXIT platform_exit_uninit +#endif /* !MBEDTLS_PLATFORM_STD_EXIT */ + +void (*mbedtls_exit)( int status ) = MBEDTLS_PLATFORM_STD_EXIT; + +int mbedtls_platform_set_exit( void (*exit_func)( int status ) ) +{ + mbedtls_exit = exit_func; + return( 0 ); +} +#endif /* MBEDTLS_PLATFORM_EXIT_ALT */ + +#if defined(MBEDTLS_HAVE_TIME) + +#if defined(MBEDTLS_PLATFORM_TIME_ALT) +#if !defined(MBEDTLS_PLATFORM_STD_TIME) +/* + * Make dummy function to prevent NULL pointer dereferences + */ +static mbedtls_time_t platform_time_uninit( mbedtls_time_t* timer ) +{ + ((void) timer); + return( 0 ); +} + +#define MBEDTLS_PLATFORM_STD_TIME platform_time_uninit +#endif /* !MBEDTLS_PLATFORM_STD_TIME */ + +mbedtls_time_t (*mbedtls_time)( mbedtls_time_t* timer ) = MBEDTLS_PLATFORM_STD_TIME; + +int mbedtls_platform_set_time( mbedtls_time_t (*time_func)( mbedtls_time_t* timer ) ) +{ + mbedtls_time = time_func; + return( 0 ); +} +#endif /* MBEDTLS_PLATFORM_TIME_ALT */ + +#endif /* MBEDTLS_HAVE_TIME */ + +#if defined(MBEDTLS_ENTROPY_NV_SEED) +#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) && defined(MBEDTLS_FS_IO) +/* Default implementations for the platform independent seed functions use + * standard libc file functions to read from and write to a pre-defined filename + */ +int mbedtls_platform_std_nv_seed_read( unsigned char *buf, size_t buf_len ) +{ + FILE *file; + size_t n; + + if( ( file = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "rb" ) ) == NULL ) + return -1; + + if( ( n = fread( buf, 1, buf_len, file ) ) != buf_len ) + { + fclose( file ); + return -1; + } + + fclose( file ); + return( n ); +} + +int mbedtls_platform_std_nv_seed_write( unsigned char *buf, size_t buf_len ) +{ + FILE *file; + size_t n; + + if( ( file = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "w" ) ) == NULL ) + return -1; + + if( ( n = fwrite( buf, 1, buf_len, file ) ) != buf_len ) + { + fclose( file ); + return -1; + } + + fclose( file ); + return( n ); +} +#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */ + +#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) +/* + * Make dummy function to prevent NULL pointer dereferences + */ +static int platform_nv_seed_read_uninit( unsigned char *buf, size_t buf_len ) +{ + ((void) buf); + ((void) buf_len); + return( -1 ); +} + +#define MBEDTLS_PLATFORM_STD_NV_SEED_READ platform_nv_seed_read_uninit +#endif /* !MBEDTLS_PLATFORM_STD_NV_SEED_READ */ + +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) +/* + * Make dummy function to prevent NULL pointer dereferences + */ +static int platform_nv_seed_write_uninit( unsigned char *buf, size_t buf_len ) +{ + ((void) buf); + ((void) buf_len); + return( -1 ); +} + +#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE platform_nv_seed_write_uninit +#endif /* !MBEDTLS_PLATFORM_STD_NV_SEED_WRITE */ + +int (*mbedtls_nv_seed_read)( unsigned char *buf, size_t buf_len ) = + MBEDTLS_PLATFORM_STD_NV_SEED_READ; +int (*mbedtls_nv_seed_write)( unsigned char *buf, size_t buf_len ) = + MBEDTLS_PLATFORM_STD_NV_SEED_WRITE; + +int mbedtls_platform_set_nv_seed( + int (*nv_seed_read_func)( unsigned char *buf, size_t buf_len ), + int (*nv_seed_write_func)( unsigned char *buf, size_t buf_len ) ) +{ + mbedtls_nv_seed_read = nv_seed_read_func; + mbedtls_nv_seed_write = nv_seed_write_func; + return( 0 ); +} +#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */ +#endif /* MBEDTLS_ENTROPY_NV_SEED */ + +#endif /* MBEDTLS_PLATFORM_C */ diff --git a/mbedtls/ripemd160.c b/mbedtls/ripemd160.c new file mode 100644 index 0000000..cdb0a63 --- /dev/null +++ b/mbedtls/ripemd160.c @@ -0,0 +1,467 @@ +/* + * RIPE MD-160 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +/* + * The RIPEMD-160 algorithm was designed by RIPE in 1996 + * http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html + * http://ehash.iaik.tugraz.at/wiki/RIPEMD-160 + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_RIPEMD160_C) + +#include "mbedtls/ripemd160.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +/* + * 32-bit integer manipulation macros (little endian) + */ +#ifndef GET_UINT32_LE +#define GET_UINT32_LE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] ) \ + | ( (uint32_t) (b)[(i) + 1] << 8 ) \ + | ( (uint32_t) (b)[(i) + 2] << 16 ) \ + | ( (uint32_t) (b)[(i) + 3] << 24 ); \ +} +#endif + +#ifndef PUT_UINT32_LE +#define PUT_UINT32_LE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \ + (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \ + (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \ + (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \ +} +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +void mbedtls_ripemd160_init( mbedtls_ripemd160_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_ripemd160_context ) ); +} + +void mbedtls_ripemd160_free( mbedtls_ripemd160_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_ripemd160_context ) ); +} + +void mbedtls_ripemd160_clone( mbedtls_ripemd160_context *dst, + const mbedtls_ripemd160_context *src ) +{ + *dst = *src; +} + +/* + * RIPEMD-160 context setup + */ +void mbedtls_ripemd160_starts( mbedtls_ripemd160_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; + ctx->state[4] = 0xC3D2E1F0; +} + +#if !defined(MBEDTLS_RIPEMD160_PROCESS_ALT) +/* + * Process one block + */ +void mbedtls_ripemd160_process( mbedtls_ripemd160_context *ctx, const unsigned char data[64] ) +{ + uint32_t A, B, C, D, E, Ap, Bp, Cp, Dp, Ep, X[16]; + + GET_UINT32_LE( X[ 0], data, 0 ); + GET_UINT32_LE( X[ 1], data, 4 ); + GET_UINT32_LE( X[ 2], data, 8 ); + GET_UINT32_LE( X[ 3], data, 12 ); + GET_UINT32_LE( X[ 4], data, 16 ); + GET_UINT32_LE( X[ 5], data, 20 ); + GET_UINT32_LE( X[ 6], data, 24 ); + GET_UINT32_LE( X[ 7], data, 28 ); + GET_UINT32_LE( X[ 8], data, 32 ); + GET_UINT32_LE( X[ 9], data, 36 ); + GET_UINT32_LE( X[10], data, 40 ); + GET_UINT32_LE( X[11], data, 44 ); + GET_UINT32_LE( X[12], data, 48 ); + GET_UINT32_LE( X[13], data, 52 ); + GET_UINT32_LE( X[14], data, 56 ); + GET_UINT32_LE( X[15], data, 60 ); + + A = Ap = ctx->state[0]; + B = Bp = ctx->state[1]; + C = Cp = ctx->state[2]; + D = Dp = ctx->state[3]; + E = Ep = ctx->state[4]; + +#define F1( x, y, z ) ( x ^ y ^ z ) +#define F2( x, y, z ) ( ( x & y ) | ( ~x & z ) ) +#define F3( x, y, z ) ( ( x | ~y ) ^ z ) +#define F4( x, y, z ) ( ( x & z ) | ( y & ~z ) ) +#define F5( x, y, z ) ( x ^ ( y | ~z ) ) + +#define S( x, n ) ( ( x << n ) | ( x >> (32 - n) ) ) + +#define P( a, b, c, d, e, r, s, f, k ) \ + a += f( b, c, d ) + X[r] + k; \ + a = S( a, s ) + e; \ + c = S( c, 10 ); + +#define P2( a, b, c, d, e, r, s, rp, sp ) \ + P( a, b, c, d, e, r, s, F, K ); \ + P( a ## p, b ## p, c ## p, d ## p, e ## p, rp, sp, Fp, Kp ); + +#define F F1 +#define K 0x00000000 +#define Fp F5 +#define Kp 0x50A28BE6 + P2( A, B, C, D, E, 0, 11, 5, 8 ); + P2( E, A, B, C, D, 1, 14, 14, 9 ); + P2( D, E, A, B, C, 2, 15, 7, 9 ); + P2( C, D, E, A, B, 3, 12, 0, 11 ); + P2( B, C, D, E, A, 4, 5, 9, 13 ); + P2( A, B, C, D, E, 5, 8, 2, 15 ); + P2( E, A, B, C, D, 6, 7, 11, 15 ); + P2( D, E, A, B, C, 7, 9, 4, 5 ); + P2( C, D, E, A, B, 8, 11, 13, 7 ); + P2( B, C, D, E, A, 9, 13, 6, 7 ); + P2( A, B, C, D, E, 10, 14, 15, 8 ); + P2( E, A, B, C, D, 11, 15, 8, 11 ); + P2( D, E, A, B, C, 12, 6, 1, 14 ); + P2( C, D, E, A, B, 13, 7, 10, 14 ); + P2( B, C, D, E, A, 14, 9, 3, 12 ); + P2( A, B, C, D, E, 15, 8, 12, 6 ); +#undef F +#undef K +#undef Fp +#undef Kp + +#define F F2 +#define K 0x5A827999 +#define Fp F4 +#define Kp 0x5C4DD124 + P2( E, A, B, C, D, 7, 7, 6, 9 ); + P2( D, E, A, B, C, 4, 6, 11, 13 ); + P2( C, D, E, A, B, 13, 8, 3, 15 ); + P2( B, C, D, E, A, 1, 13, 7, 7 ); + P2( A, B, C, D, E, 10, 11, 0, 12 ); + P2( E, A, B, C, D, 6, 9, 13, 8 ); + P2( D, E, A, B, C, 15, 7, 5, 9 ); + P2( C, D, E, A, B, 3, 15, 10, 11 ); + P2( B, C, D, E, A, 12, 7, 14, 7 ); + P2( A, B, C, D, E, 0, 12, 15, 7 ); + P2( E, A, B, C, D, 9, 15, 8, 12 ); + P2( D, E, A, B, C, 5, 9, 12, 7 ); + P2( C, D, E, A, B, 2, 11, 4, 6 ); + P2( B, C, D, E, A, 14, 7, 9, 15 ); + P2( A, B, C, D, E, 11, 13, 1, 13 ); + P2( E, A, B, C, D, 8, 12, 2, 11 ); +#undef F +#undef K +#undef Fp +#undef Kp + +#define F F3 +#define K 0x6ED9EBA1 +#define Fp F3 +#define Kp 0x6D703EF3 + P2( D, E, A, B, C, 3, 11, 15, 9 ); + P2( C, D, E, A, B, 10, 13, 5, 7 ); + P2( B, C, D, E, A, 14, 6, 1, 15 ); + P2( A, B, C, D, E, 4, 7, 3, 11 ); + P2( E, A, B, C, D, 9, 14, 7, 8 ); + P2( D, E, A, B, C, 15, 9, 14, 6 ); + P2( C, D, E, A, B, 8, 13, 6, 6 ); + P2( B, C, D, E, A, 1, 15, 9, 14 ); + P2( A, B, C, D, E, 2, 14, 11, 12 ); + P2( E, A, B, C, D, 7, 8, 8, 13 ); + P2( D, E, A, B, C, 0, 13, 12, 5 ); + P2( C, D, E, A, B, 6, 6, 2, 14 ); + P2( B, C, D, E, A, 13, 5, 10, 13 ); + P2( A, B, C, D, E, 11, 12, 0, 13 ); + P2( E, A, B, C, D, 5, 7, 4, 7 ); + P2( D, E, A, B, C, 12, 5, 13, 5 ); +#undef F +#undef K +#undef Fp +#undef Kp + +#define F F4 +#define K 0x8F1BBCDC +#define Fp F2 +#define Kp 0x7A6D76E9 + P2( C, D, E, A, B, 1, 11, 8, 15 ); + P2( B, C, D, E, A, 9, 12, 6, 5 ); + P2( A, B, C, D, E, 11, 14, 4, 8 ); + P2( E, A, B, C, D, 10, 15, 1, 11 ); + P2( D, E, A, B, C, 0, 14, 3, 14 ); + P2( C, D, E, A, B, 8, 15, 11, 14 ); + P2( B, C, D, E, A, 12, 9, 15, 6 ); + P2( A, B, C, D, E, 4, 8, 0, 14 ); + P2( E, A, B, C, D, 13, 9, 5, 6 ); + P2( D, E, A, B, C, 3, 14, 12, 9 ); + P2( C, D, E, A, B, 7, 5, 2, 12 ); + P2( B, C, D, E, A, 15, 6, 13, 9 ); + P2( A, B, C, D, E, 14, 8, 9, 12 ); + P2( E, A, B, C, D, 5, 6, 7, 5 ); + P2( D, E, A, B, C, 6, 5, 10, 15 ); + P2( C, D, E, A, B, 2, 12, 14, 8 ); +#undef F +#undef K +#undef Fp +#undef Kp + +#define F F5 +#define K 0xA953FD4E +#define Fp F1 +#define Kp 0x00000000 + P2( B, C, D, E, A, 4, 9, 12, 8 ); + P2( A, B, C, D, E, 0, 15, 15, 5 ); + P2( E, A, B, C, D, 5, 5, 10, 12 ); + P2( D, E, A, B, C, 9, 11, 4, 9 ); + P2( C, D, E, A, B, 7, 6, 1, 12 ); + P2( B, C, D, E, A, 12, 8, 5, 5 ); + P2( A, B, C, D, E, 2, 13, 8, 14 ); + P2( E, A, B, C, D, 10, 12, 7, 6 ); + P2( D, E, A, B, C, 14, 5, 6, 8 ); + P2( C, D, E, A, B, 1, 12, 2, 13 ); + P2( B, C, D, E, A, 3, 13, 13, 6 ); + P2( A, B, C, D, E, 8, 14, 14, 5 ); + P2( E, A, B, C, D, 11, 11, 0, 15 ); + P2( D, E, A, B, C, 6, 8, 3, 13 ); + P2( C, D, E, A, B, 15, 5, 9, 11 ); + P2( B, C, D, E, A, 13, 6, 11, 11 ); +#undef F +#undef K +#undef Fp +#undef Kp + + C = ctx->state[1] + C + Dp; + ctx->state[1] = ctx->state[2] + D + Ep; + ctx->state[2] = ctx->state[3] + E + Ap; + ctx->state[3] = ctx->state[4] + A + Bp; + ctx->state[4] = ctx->state[0] + B + Cp; + ctx->state[0] = C; +} +#endif /* !MBEDTLS_RIPEMD160_PROCESS_ALT */ + +/* + * RIPEMD-160 process buffer + */ +void mbedtls_ripemd160_update( mbedtls_ripemd160_context *ctx, + const unsigned char *input, size_t ilen ) +{ + size_t fill; + uint32_t left; + + if( ilen == 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += (uint32_t) ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (uint32_t) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + memcpy( (void *) (ctx->buffer + left), input, fill ); + mbedtls_ripemd160_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + mbedtls_ripemd160_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + { + memcpy( (void *) (ctx->buffer + left), input, ilen ); + } +} + +static const unsigned char ripemd160_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * RIPEMD-160 final digest + */ +void mbedtls_ripemd160_finish( mbedtls_ripemd160_context *ctx, unsigned char output[20] ) +{ + uint32_t last, padn; + uint32_t high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_UINT32_LE( low, msglen, 0 ); + PUT_UINT32_LE( high, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + mbedtls_ripemd160_update( ctx, ripemd160_padding, padn ); + mbedtls_ripemd160_update( ctx, msglen, 8 ); + + PUT_UINT32_LE( ctx->state[0], output, 0 ); + PUT_UINT32_LE( ctx->state[1], output, 4 ); + PUT_UINT32_LE( ctx->state[2], output, 8 ); + PUT_UINT32_LE( ctx->state[3], output, 12 ); + PUT_UINT32_LE( ctx->state[4], output, 16 ); +} + +/* + * output = RIPEMD-160( input buffer ) + */ +void mbedtls_ripemd160( const unsigned char *input, size_t ilen, + unsigned char output[20] ) +{ + mbedtls_ripemd160_context ctx; + + mbedtls_ripemd160_init( &ctx ); + mbedtls_ripemd160_starts( &ctx ); + mbedtls_ripemd160_update( &ctx, input, ilen ); + mbedtls_ripemd160_finish( &ctx, output ); + mbedtls_ripemd160_free( &ctx ); +} + +#if defined(MBEDTLS_SELF_TEST) +/* + * Test vectors from the RIPEMD-160 paper and + * http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html#HMAC + */ +#define TESTS 8 +#define KEYS 2 +static const char *ripemd160_test_input[TESTS] = +{ + "", + "a", + "abc", + "message digest", + "abcdefghijklmnopqrstuvwxyz", + "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", + "1234567890123456789012345678901234567890" + "1234567890123456789012345678901234567890", +}; + +static const unsigned char ripemd160_test_md[TESTS][20] = +{ + { 0x9c, 0x11, 0x85, 0xa5, 0xc5, 0xe9, 0xfc, 0x54, 0x61, 0x28, + 0x08, 0x97, 0x7e, 0xe8, 0xf5, 0x48, 0xb2, 0x25, 0x8d, 0x31 }, + { 0x0b, 0xdc, 0x9d, 0x2d, 0x25, 0x6b, 0x3e, 0xe9, 0xda, 0xae, + 0x34, 0x7b, 0xe6, 0xf4, 0xdc, 0x83, 0x5a, 0x46, 0x7f, 0xfe }, + { 0x8e, 0xb2, 0x08, 0xf7, 0xe0, 0x5d, 0x98, 0x7a, 0x9b, 0x04, + 0x4a, 0x8e, 0x98, 0xc6, 0xb0, 0x87, 0xf1, 0x5a, 0x0b, 0xfc }, + { 0x5d, 0x06, 0x89, 0xef, 0x49, 0xd2, 0xfa, 0xe5, 0x72, 0xb8, + 0x81, 0xb1, 0x23, 0xa8, 0x5f, 0xfa, 0x21, 0x59, 0x5f, 0x36 }, + { 0xf7, 0x1c, 0x27, 0x10, 0x9c, 0x69, 0x2c, 0x1b, 0x56, 0xbb, + 0xdc, 0xeb, 0x5b, 0x9d, 0x28, 0x65, 0xb3, 0x70, 0x8d, 0xbc }, + { 0x12, 0xa0, 0x53, 0x38, 0x4a, 0x9c, 0x0c, 0x88, 0xe4, 0x05, + 0xa0, 0x6c, 0x27, 0xdc, 0xf4, 0x9a, 0xda, 0x62, 0xeb, 0x2b }, + { 0xb0, 0xe2, 0x0b, 0x6e, 0x31, 0x16, 0x64, 0x02, 0x86, 0xed, + 0x3a, 0x87, 0xa5, 0x71, 0x30, 0x79, 0xb2, 0x1f, 0x51, 0x89 }, + { 0x9b, 0x75, 0x2e, 0x45, 0x57, 0x3d, 0x4b, 0x39, 0xf4, 0xdb, + 0xd3, 0x32, 0x3c, 0xab, 0x82, 0xbf, 0x63, 0x32, 0x6b, 0xfb }, +}; + +/* + * Checkup routine + */ +int mbedtls_ripemd160_self_test( int verbose ) +{ + int i; + unsigned char output[20]; + + memset( output, 0, sizeof output ); + + for( i = 0; i < TESTS; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " RIPEMD-160 test #%d: ", i + 1 ); + + mbedtls_ripemd160( (const unsigned char *) ripemd160_test_input[i], + strlen( ripemd160_test_input[i] ), + output ); + + if( memcmp( output, ripemd160_test_md[i], 20 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_RIPEMD160_C */ diff --git a/mbedtls/rsa.c b/mbedtls/rsa.c new file mode 100644 index 0000000..40ef2a9 --- /dev/null +++ b/mbedtls/rsa.c @@ -0,0 +1,1730 @@ +/* + * The RSA public-key cryptosystem + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The following sources were referenced in the design of this implementation + * of the RSA algorithm: + * + * [1] A method for obtaining digital signatures and public-key cryptosystems + * R Rivest, A Shamir, and L Adleman + * http://people.csail.mit.edu/rivest/pubs.html#RSA78 + * + * [2] Handbook of Applied Cryptography - 1997, Chapter 8 + * Menezes, van Oorschot and Vanstone + * + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_RSA_C) + +#include "mbedtls/rsa.h" +#include "mbedtls/oid.h" + +#include + +#if defined(MBEDTLS_PKCS1_V21) +#include "mbedtls/md.h" +#endif + +#if defined(MBEDTLS_PKCS1_V15) && !defined(__OpenBSD__) +#include +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +/* + * Initialize an RSA context + */ +void mbedtls_rsa_init( mbedtls_rsa_context *ctx, + int padding, + int hash_id ) +{ + memset( ctx, 0, sizeof( mbedtls_rsa_context ) ); + + mbedtls_rsa_set_padding( ctx, padding, hash_id ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif +} + +/* + * Set padding for an existing RSA context + */ +void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding, int hash_id ) +{ + ctx->padding = padding; + ctx->hash_id = hash_id; +} + +#if defined(MBEDTLS_GENPRIME) + +/* + * Generate an RSA keypair + */ +int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + unsigned int nbits, int exponent ) +{ + int ret; + mbedtls_mpi P1, Q1, H, G; + + if( f_rng == NULL || nbits < 128 || exponent < 3 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( nbits % 2 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &P1 ); mbedtls_mpi_init( &Q1 ); + mbedtls_mpi_init( &H ); mbedtls_mpi_init( &G ); + + /* + * find primes P and Q with Q < P so that: + * GCD( E, (P-1)*(Q-1) ) == 1 + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->E, exponent ) ); + + do + { + MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->P, nbits >> 1, 0, + f_rng, p_rng ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->Q, nbits >> 1, 0, + f_rng, p_rng ) ); + + if( mbedtls_mpi_cmp_mpi( &ctx->P, &ctx->Q ) == 0 ) + continue; + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->N, &ctx->P, &ctx->Q ) ); + if( mbedtls_mpi_bitlen( &ctx->N ) != nbits ) + continue; + + if( mbedtls_mpi_cmp_mpi( &ctx->P, &ctx->Q ) < 0 ) + mbedtls_mpi_swap( &ctx->P, &ctx->Q ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &P1, &ctx->P, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &Q1, &ctx->Q, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &H, &P1, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->E, &H ) ); + } + while( mbedtls_mpi_cmp_int( &G, 1 ) != 0 ); + + /* + * D = E^-1 mod ((P-1)*(Q-1)) + * DP = D mod (P - 1) + * DQ = D mod (Q - 1) + * QP = Q^-1 mod P + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->D , &ctx->E, &H ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->DP, &ctx->D, &P1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->DQ, &ctx->D, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->QP, &ctx->Q, &ctx->P ) ); + + ctx->len = ( mbedtls_mpi_bitlen( &ctx->N ) + 7 ) >> 3; + +cleanup: + + mbedtls_mpi_free( &P1 ); mbedtls_mpi_free( &Q1 ); mbedtls_mpi_free( &H ); mbedtls_mpi_free( &G ); + + if( ret != 0 ) + { + mbedtls_rsa_free( ctx ); + return( MBEDTLS_ERR_RSA_KEY_GEN_FAILED + ret ); + } + + return( 0 ); +} + +#endif /* MBEDTLS_GENPRIME */ + +/* + * Check a public RSA key + */ +int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx ) +{ + if( !ctx->N.p || !ctx->E.p ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + if( ( ctx->N.p[0] & 1 ) == 0 || + ( ctx->E.p[0] & 1 ) == 0 ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + if( mbedtls_mpi_bitlen( &ctx->N ) < 128 || + mbedtls_mpi_bitlen( &ctx->N ) > MBEDTLS_MPI_MAX_BITS ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + if( mbedtls_mpi_bitlen( &ctx->E ) < 2 || + mbedtls_mpi_cmp_mpi( &ctx->E, &ctx->N ) >= 0 ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + return( 0 ); +} + +/* + * Check a private RSA key + */ +int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx ) +{ + int ret; + mbedtls_mpi PQ, DE, P1, Q1, H, I, G, G2, L1, L2, DP, DQ, QP; + + if( ( ret = mbedtls_rsa_check_pubkey( ctx ) ) != 0 ) + return( ret ); + + if( !ctx->P.p || !ctx->Q.p || !ctx->D.p ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + mbedtls_mpi_init( &PQ ); mbedtls_mpi_init( &DE ); mbedtls_mpi_init( &P1 ); mbedtls_mpi_init( &Q1 ); + mbedtls_mpi_init( &H ); mbedtls_mpi_init( &I ); mbedtls_mpi_init( &G ); mbedtls_mpi_init( &G2 ); + mbedtls_mpi_init( &L1 ); mbedtls_mpi_init( &L2 ); mbedtls_mpi_init( &DP ); mbedtls_mpi_init( &DQ ); + mbedtls_mpi_init( &QP ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &PQ, &ctx->P, &ctx->Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DE, &ctx->D, &ctx->E ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &P1, &ctx->P, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &Q1, &ctx->Q, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &H, &P1, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->E, &H ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G2, &P1, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &L1, &L2, &H, &G2 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &I, &DE, &L1 ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &DP, &ctx->D, &P1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &DQ, &ctx->D, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &QP, &ctx->Q, &ctx->P ) ); + /* + * Check for a valid PKCS1v2 private key + */ + if( mbedtls_mpi_cmp_mpi( &PQ, &ctx->N ) != 0 || + mbedtls_mpi_cmp_mpi( &DP, &ctx->DP ) != 0 || + mbedtls_mpi_cmp_mpi( &DQ, &ctx->DQ ) != 0 || + mbedtls_mpi_cmp_mpi( &QP, &ctx->QP ) != 0 || + mbedtls_mpi_cmp_int( &L2, 0 ) != 0 || + mbedtls_mpi_cmp_int( &I, 1 ) != 0 || + mbedtls_mpi_cmp_int( &G, 1 ) != 0 ) + { + ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED; + } + +cleanup: + mbedtls_mpi_free( &PQ ); mbedtls_mpi_free( &DE ); mbedtls_mpi_free( &P1 ); mbedtls_mpi_free( &Q1 ); + mbedtls_mpi_free( &H ); mbedtls_mpi_free( &I ); mbedtls_mpi_free( &G ); mbedtls_mpi_free( &G2 ); + mbedtls_mpi_free( &L1 ); mbedtls_mpi_free( &L2 ); mbedtls_mpi_free( &DP ); mbedtls_mpi_free( &DQ ); + mbedtls_mpi_free( &QP ); + + if( ret == MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ) + return( ret ); + + if( ret != 0 ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED + ret ); + + return( 0 ); +} + +/* + * Check if contexts holding a public and private key match + */ +int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv ) +{ + if( mbedtls_rsa_check_pubkey( pub ) != 0 || + mbedtls_rsa_check_privkey( prv ) != 0 ) + { + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + } + + if( mbedtls_mpi_cmp_mpi( &pub->N, &prv->N ) != 0 || + mbedtls_mpi_cmp_mpi( &pub->E, &prv->E ) != 0 ) + { + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + } + + return( 0 ); +} + +/* + * Do an RSA public key operation + */ +int mbedtls_rsa_public( mbedtls_rsa_context *ctx, + const unsigned char *input, + unsigned char *output ) +{ + int ret; + size_t olen; + mbedtls_mpi T; + + mbedtls_mpi_init( &T ); + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) ); + + if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 ) + { + ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA; + goto cleanup; + } + + olen = ctx->len; + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, &ctx->E, &ctx->N, &ctx->RN ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) ); + +cleanup: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + mbedtls_mpi_free( &T ); + + if( ret != 0 ) + return( MBEDTLS_ERR_RSA_PUBLIC_FAILED + ret ); + + return( 0 ); +} + +/* + * Generate or update blinding values, see section 10 of: + * KOCHER, Paul C. Timing attacks on implementations of Diffie-Hellman, RSA, + * DSS, and other systems. In : Advances in Cryptology-CRYPTO'96. Springer + * Berlin Heidelberg, 1996. p. 104-113. + */ +static int rsa_prepare_blinding( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret, count = 0; + + if( ctx->Vf.p != NULL ) + { + /* We already have blinding values, just update them by squaring */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &ctx->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &ctx->Vf ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->N ) ); + + goto cleanup; + } + + /* Unblinding value: Vf = random number, invertible mod N */ + do { + if( count++ > 10 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->Vf, ctx->len - 1, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &ctx->Vi, &ctx->Vf, &ctx->N ) ); + } while( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) != 0 ); + + /* Blinding value: Vi = Vf^(-e) mod N */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->Vi, &ctx->Vf, &ctx->N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->Vi, &ctx->Vi, &ctx->E, &ctx->N, &ctx->RN ) ); + + +cleanup: + return( ret ); +} + +/* + * Do an RSA private key operation + */ +int mbedtls_rsa_private( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + const unsigned char *input, + unsigned char *output ) +{ + int ret; + size_t olen; + mbedtls_mpi T, T1, T2; + + /* Make sure we have private key info, prevent possible misuse */ + if( ctx->P.p == NULL || ctx->Q.p == NULL || ctx->D.p == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &T ); mbedtls_mpi_init( &T1 ); mbedtls_mpi_init( &T2 ); + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) ); + if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 ) + { + ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA; + goto cleanup; + } + + if( f_rng != NULL ) + { + /* + * Blinding + * T = T * Vi mod N + */ + MBEDTLS_MPI_CHK( rsa_prepare_blinding( ctx, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) ); + } + +#if defined(MBEDTLS_RSA_NO_CRT) + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, &ctx->D, &ctx->N, &ctx->RN ) ); +#else + /* + * faster decryption using the CRT + * + * T1 = input ^ dP mod P + * T2 = input ^ dQ mod Q + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T1, &T, &ctx->DP, &ctx->P, &ctx->RP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T2, &T, &ctx->DQ, &ctx->Q, &ctx->RQ ) ); + + /* + * T = (T1 - T2) * (Q^-1 mod P) mod P + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &T1, &T2 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &T, &ctx->QP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T1, &ctx->P ) ); + + /* + * T = T2 + T * Q + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &T, &ctx->Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &T, &T2, &T1 ) ); +#endif /* MBEDTLS_RSA_NO_CRT */ + + if( f_rng != NULL ) + { + /* + * Unblind + * T = T * Vf mod N + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vf ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) ); + } + + olen = ctx->len; + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) ); + +cleanup: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + mbedtls_mpi_free( &T ); mbedtls_mpi_free( &T1 ); mbedtls_mpi_free( &T2 ); + + if( ret != 0 ) + return( MBEDTLS_ERR_RSA_PRIVATE_FAILED + ret ); + + return( 0 ); +} + +#if defined(MBEDTLS_PKCS1_V21) +/** + * Generate and apply the MGF1 operation (from PKCS#1 v2.1) to a buffer. + * + * \param dst buffer to mask + * \param dlen length of destination buffer + * \param src source of the mask generation + * \param slen length of the source buffer + * \param md_ctx message digest context to use + */ +static void mgf_mask( unsigned char *dst, size_t dlen, unsigned char *src, + size_t slen, mbedtls_md_context_t *md_ctx ) +{ + unsigned char mask[MBEDTLS_MD_MAX_SIZE]; + unsigned char counter[4]; + unsigned char *p; + unsigned int hlen; + size_t i, use_len; + + memset( mask, 0, MBEDTLS_MD_MAX_SIZE ); + memset( counter, 0, 4 ); + + hlen = mbedtls_md_get_size( md_ctx->md_info ); + + /* Generate and apply dbMask */ + p = dst; + + while( dlen > 0 ) + { + use_len = hlen; + if( dlen < hlen ) + use_len = dlen; + + mbedtls_md_starts( md_ctx ); + mbedtls_md_update( md_ctx, src, slen ); + mbedtls_md_update( md_ctx, counter, 4 ); + mbedtls_md_finish( md_ctx, mask ); + + for( i = 0; i < use_len; ++i ) + *p++ ^= mask[i]; + + counter[3]++; + + dlen -= use_len; + } +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSAES-OAEP-ENCRYPT function + */ +int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t ilen, + const unsigned char *input, + unsigned char *output ) +{ + size_t olen; + int ret; + unsigned char *p = output; + unsigned int hlen; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( f_rng == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + hlen = mbedtls_md_get_size( md_info ); + + /* first comparison checks for overflow */ + if( ilen + 2 * hlen + 2 < ilen || olen < ilen + 2 * hlen + 2 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + memset( output, 0, olen ); + + *p++ = 0; + + /* Generate a random octet string seed */ + if( ( ret = f_rng( p_rng, p, hlen ) ) != 0 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED + ret ); + + p += hlen; + + /* Construct DB */ + mbedtls_md( md_info, label, label_len, p ); + p += hlen; + p += olen - 2 * hlen - 2 - ilen; + *p++ = 1; + memcpy( p, input, ilen ); + + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + /* maskedDB: Apply dbMask to DB */ + mgf_mask( output + hlen + 1, olen - hlen - 1, output + 1, hlen, + &md_ctx ); + + /* maskedSeed: Apply seedMask to seed */ + mgf_mask( output + 1, hlen, output + hlen + 1, olen - hlen - 1, + &md_ctx ); + + mbedtls_md_free( &md_ctx ); + + return( ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, output, output ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) ); +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-ENCRYPT function + */ +int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ) +{ + size_t nb_pad, olen; + int ret; + unsigned char *p = output; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + // We don't check p_rng because it won't be dereferenced here + if( f_rng == NULL || input == NULL || output == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + + /* first comparison checks for overflow */ + if( ilen + 11 < ilen || olen < ilen + 11 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + nb_pad = olen - 3 - ilen; + + *p++ = 0; + if( mode == MBEDTLS_RSA_PUBLIC ) + { + *p++ = MBEDTLS_RSA_CRYPT; + + while( nb_pad-- > 0 ) + { + int rng_dl = 100; + + do { + ret = f_rng( p_rng, p, 1 ); + } while( *p == 0 && --rng_dl && ret == 0 ); + + /* Check if RNG failed to generate data */ + if( rng_dl == 0 || ret != 0 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED + ret ); + + p++; + } + } + else + { + *p++ = MBEDTLS_RSA_SIGN; + + while( nb_pad-- > 0 ) + *p++ = 0xFF; + } + + *p++ = 0; + memcpy( p, input, ilen ); + + return( ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, output, output ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Add the message padding, then do an RSA operation + */ +int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsaes_pkcs1_v15_encrypt( ctx, f_rng, p_rng, mode, ilen, + input, output ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsaes_oaep_encrypt( ctx, f_rng, p_rng, mode, NULL, 0, + ilen, input, output ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSAES-OAEP-DECRYPT function + */ +int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ) +{ + int ret; + size_t ilen, i, pad_len; + unsigned char *p, bad, pad_done; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + unsigned char lhash[MBEDTLS_MD_MAX_SIZE]; + unsigned int hlen; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + + /* + * Parameters sanity checks + */ + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ilen = ctx->len; + + if( ilen < 16 || ilen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hlen = mbedtls_md_get_size( md_info ); + + // checking for integer underflow + if( 2 * hlen + 2 > ilen ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + /* + * RSA operation + */ + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, input, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf ); + + if( ret != 0 ) + return( ret ); + + /* + * Unmask data and generate lHash + */ + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + + /* Generate lHash */ + mbedtls_md( md_info, label, label_len, lhash ); + + /* seed: Apply seedMask to maskedSeed */ + mgf_mask( buf + 1, hlen, buf + hlen + 1, ilen - hlen - 1, + &md_ctx ); + + /* DB: Apply dbMask to maskedDB */ + mgf_mask( buf + hlen + 1, ilen - hlen - 1, buf + 1, hlen, + &md_ctx ); + + mbedtls_md_free( &md_ctx ); + + /* + * Check contents, in "constant-time" + */ + p = buf; + bad = 0; + + bad |= *p++; /* First byte must be 0 */ + + p += hlen; /* Skip seed */ + + /* Check lHash */ + for( i = 0; i < hlen; i++ ) + bad |= lhash[i] ^ *p++; + + /* Get zero-padding len, but always read till end of buffer + * (minus one, for the 01 byte) */ + pad_len = 0; + pad_done = 0; + for( i = 0; i < ilen - 2 * hlen - 2; i++ ) + { + pad_done |= p[i]; + pad_len += ((pad_done | (unsigned char)-pad_done) >> 7) ^ 1; + } + + p += pad_len; + bad |= *p++ ^ 0x01; + + /* + * The only information "leaked" is whether the padding was correct or not + * (eg, no data is copied if it was not correct). This meets the + * recommendations in PKCS#1 v2.2: an opponent cannot distinguish between + * the different error conditions. + */ + if( bad != 0 ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + if( ilen - ( p - buf ) > output_max_len ) + return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); + + *olen = ilen - (p - buf); + memcpy( output, p, *olen ); + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-DECRYPT function + */ +int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len) +{ + int ret; + size_t ilen, pad_count = 0, i; + unsigned char *p, bad, pad_done = 0; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ilen = ctx->len; + + if( ilen < 16 || ilen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, input, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf ); + + if( ret != 0 ) + return( ret ); + + p = buf; + bad = 0; + + /* + * Check and get padding len in "constant-time" + */ + bad |= *p++; /* First byte must be 0 */ + + /* This test does not depend on secret data */ + if( mode == MBEDTLS_RSA_PRIVATE ) + { + bad |= *p++ ^ MBEDTLS_RSA_CRYPT; + + /* Get padding len, but always read till end of buffer + * (minus one, for the 00 byte) */ + for( i = 0; i < ilen - 3; i++ ) + { + pad_done |= ((p[i] | (unsigned char)-p[i]) >> 7) ^ 1; + pad_count += ((pad_done | (unsigned char)-pad_done) >> 7) ^ 1; + } + + p += pad_count; + bad |= *p++; /* Must be zero */ + } + else + { + bad |= *p++ ^ MBEDTLS_RSA_SIGN; + + /* Get padding len, but always read till end of buffer + * (minus one, for the 00 byte) */ + for( i = 0; i < ilen - 3; i++ ) + { + pad_done |= ( p[i] != 0xFF ); + pad_count += ( pad_done == 0 ); + } + + p += pad_count; + bad |= *p++; /* Must be zero */ + } + + bad |= ( pad_count < 8 ); + + if( bad ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + if( ilen - ( p - buf ) > output_max_len ) + return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); + + *olen = ilen - (p - buf); + memcpy( output, p, *olen ); + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Do an RSA operation, then remove the message padding + */ +int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsaes_pkcs1_v15_decrypt( ctx, f_rng, p_rng, mode, olen, + input, output, output_max_len ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsaes_oaep_decrypt( ctx, f_rng, p_rng, mode, NULL, 0, + olen, input, output, + output_max_len ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PSS-SIGN function + */ +int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ) +{ + size_t olen; + unsigned char *p = sig; + unsigned char salt[MBEDTLS_MD_MAX_SIZE]; + unsigned int slen, hlen, offset = 0; + int ret; + size_t msb; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( f_rng == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + + if( md_alg != MBEDTLS_MD_NONE ) + { + /* Gather length of hash to sign */ + md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hashlen = mbedtls_md_get_size( md_info ); + } + + md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hlen = mbedtls_md_get_size( md_info ); + slen = hlen; + + if( olen < hlen + slen + 2 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + memset( sig, 0, olen ); + + /* Generate salt of length slen */ + if( ( ret = f_rng( p_rng, salt, slen ) ) != 0 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED + ret ); + + /* Note: EMSA-PSS encoding is over the length of N - 1 bits */ + msb = mbedtls_mpi_bitlen( &ctx->N ) - 1; + p += olen - hlen * 2 - 2; + *p++ = 0x01; + memcpy( p, salt, slen ); + p += slen; + + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + /* Generate H = Hash( M' ) */ + mbedtls_md_starts( &md_ctx ); + mbedtls_md_update( &md_ctx, p, 8 ); + mbedtls_md_update( &md_ctx, hash, hashlen ); + mbedtls_md_update( &md_ctx, salt, slen ); + mbedtls_md_finish( &md_ctx, p ); + + /* Compensate for boundary condition when applying mask */ + if( msb % 8 == 0 ) + offset = 1; + + /* maskedDB: Apply dbMask to DB */ + mgf_mask( sig + offset, olen - hlen - 1 - offset, p, hlen, &md_ctx ); + + mbedtls_md_free( &md_ctx ); + + msb = mbedtls_mpi_bitlen( &ctx->N ) - 1; + sig[0] &= 0xFF >> ( olen * 8 - msb ); + + p += hlen; + *p++ = 0xBC; + + return( ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, sig, sig ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig ) ); +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-V1_5-SIGN function + */ +/* + * Do an RSA operation to sign the message digest + */ +int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ) +{ + size_t nb_pad, olen, oid_size = 0; + unsigned char *p = sig; + const char *oid = NULL; + unsigned char *sig_try = NULL, *verif = NULL; + size_t i; + unsigned char diff; + volatile unsigned char diff_no_optimize; + int ret; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + nb_pad = olen - 3; + + if( md_alg != MBEDTLS_MD_NONE ) + { + const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + nb_pad -= 10 + oid_size; + + hashlen = mbedtls_md_get_size( md_info ); + } + + nb_pad -= hashlen; + + if( ( nb_pad < 8 ) || ( nb_pad > olen ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + *p++ = 0; + *p++ = MBEDTLS_RSA_SIGN; + memset( p, 0xFF, nb_pad ); + p += nb_pad; + *p++ = 0; + + if( md_alg == MBEDTLS_MD_NONE ) + { + memcpy( p, hash, hashlen ); + } + else + { + /* + * DigestInfo ::= SEQUENCE { + * digestAlgorithm DigestAlgorithmIdentifier, + * digest Digest } + * + * DigestAlgorithmIdentifier ::= AlgorithmIdentifier + * + * Digest ::= OCTET STRING + */ + *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; + *p++ = (unsigned char) ( 0x08 + oid_size + hashlen ); + *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; + *p++ = (unsigned char) ( 0x04 + oid_size ); + *p++ = MBEDTLS_ASN1_OID; + *p++ = oid_size & 0xFF; + memcpy( p, oid, oid_size ); + p += oid_size; + *p++ = MBEDTLS_ASN1_NULL; + *p++ = 0x00; + *p++ = MBEDTLS_ASN1_OCTET_STRING; + *p++ = hashlen; + memcpy( p, hash, hashlen ); + } + + if( mode == MBEDTLS_RSA_PUBLIC ) + return( mbedtls_rsa_public( ctx, sig, sig ) ); + + /* + * In order to prevent Lenstra's attack, make the signature in a + * temporary buffer and check it before returning it. + */ + sig_try = mbedtls_calloc( 1, ctx->len ); + if( sig_try == NULL ) + return( MBEDTLS_ERR_MPI_ALLOC_FAILED ); + + verif = mbedtls_calloc( 1, ctx->len ); + if( verif == NULL ) + { + mbedtls_free( sig_try ); + return( MBEDTLS_ERR_MPI_ALLOC_FAILED ); + } + + MBEDTLS_MPI_CHK( mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig_try ) ); + MBEDTLS_MPI_CHK( mbedtls_rsa_public( ctx, sig_try, verif ) ); + + /* Compare in constant time just in case */ + for( diff = 0, i = 0; i < ctx->len; i++ ) + diff |= verif[i] ^ sig[i]; + diff_no_optimize = diff; + + if( diff_no_optimize != 0 ) + { + ret = MBEDTLS_ERR_RSA_PRIVATE_FAILED; + goto cleanup; + } + + memcpy( sig, sig_try, ctx->len ); + +cleanup: + mbedtls_free( sig_try ); + mbedtls_free( verif ); + + return( ret ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Do an RSA operation to sign the message digest + */ +int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsassa_pkcs1_v15_sign( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsassa_pss_sign( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PSS-VERIFY function + */ +int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + mbedtls_md_type_t mgf1_hash_id, + int expected_salt_len, + const unsigned char *sig ) +{ + int ret; + size_t siglen; + unsigned char *p; + unsigned char result[MBEDTLS_MD_MAX_SIZE]; + unsigned char zeros[8]; + unsigned int hlen; + size_t slen, msb; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + siglen = ctx->len; + + if( siglen < 16 || siglen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, sig, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, buf ); + + if( ret != 0 ) + return( ret ); + + p = buf; + + if( buf[siglen - 1] != 0xBC ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + if( md_alg != MBEDTLS_MD_NONE ) + { + /* Gather length of hash to sign */ + md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hashlen = mbedtls_md_get_size( md_info ); + } + + md_info = mbedtls_md_info_from_type( mgf1_hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hlen = mbedtls_md_get_size( md_info ); + slen = siglen - hlen - 1; /* Currently length of salt + padding */ + + memset( zeros, 0, 8 ); + + /* + * Note: EMSA-PSS verification is over the length of N - 1 bits + */ + msb = mbedtls_mpi_bitlen( &ctx->N ) - 1; + + /* Compensate for boundary condition when applying mask */ + if( msb % 8 == 0 ) + { + p++; + siglen -= 1; + } + if( buf[0] >> ( 8 - siglen * 8 + msb ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + mgf_mask( p, siglen - hlen - 1, p + siglen - hlen - 1, hlen, &md_ctx ); + + buf[0] &= 0xFF >> ( siglen * 8 - msb ); + + while( p < buf + siglen && *p == 0 ) + p++; + + if( p == buf + siglen || + *p++ != 0x01 ) + { + mbedtls_md_free( &md_ctx ); + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } + + /* Actual salt len */ + slen -= p - buf; + + if( expected_salt_len != MBEDTLS_RSA_SALT_LEN_ANY && + slen != (size_t) expected_salt_len ) + { + mbedtls_md_free( &md_ctx ); + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } + + /* + * Generate H = Hash( M' ) + */ + mbedtls_md_starts( &md_ctx ); + mbedtls_md_update( &md_ctx, zeros, 8 ); + mbedtls_md_update( &md_ctx, hash, hashlen ); + mbedtls_md_update( &md_ctx, p, slen ); + mbedtls_md_finish( &md_ctx, result ); + + mbedtls_md_free( &md_ctx ); + + if( memcmp( p + slen, result, hlen ) == 0 ) + return( 0 ); + else + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); +} + +/* + * Simplified PKCS#1 v2.1 RSASSA-PSS-VERIFY function + */ +int mbedtls_rsa_rsassa_pss_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ) +{ + mbedtls_md_type_t mgf1_hash_id = ( ctx->hash_id != MBEDTLS_MD_NONE ) + ? (mbedtls_md_type_t) ctx->hash_id + : md_alg; + + return( mbedtls_rsa_rsassa_pss_verify_ext( ctx, f_rng, p_rng, mode, + md_alg, hashlen, hash, + mgf1_hash_id, MBEDTLS_RSA_SALT_LEN_ANY, + sig ) ); + +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-v1_5-VERIFY function + */ +int mbedtls_rsa_rsassa_pkcs1_v15_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ) +{ + int ret; + size_t len, siglen, asn1_len; + unsigned char *p, *end; + mbedtls_md_type_t msg_md_alg; + const mbedtls_md_info_t *md_info; + mbedtls_asn1_buf oid; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + siglen = ctx->len; + + if( siglen < 16 || siglen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, sig, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, buf ); + + if( ret != 0 ) + return( ret ); + + p = buf; + + if( *p++ != 0 || *p++ != MBEDTLS_RSA_SIGN ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + while( *p != 0 ) + { + if( p >= buf + siglen - 1 || *p != 0xFF ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + p++; + } + p++; + + len = siglen - ( p - buf ); + + if( len == hashlen && md_alg == MBEDTLS_MD_NONE ) + { + if( memcmp( p, hash, hashlen ) == 0 ) + return( 0 ); + else + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + } + + md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + hashlen = mbedtls_md_get_size( md_info ); + + end = p + len; + + /* + * Parse the ASN.1 structure inside the PKCS#1 v1.5 structure + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( asn1_len + 2 != len ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( asn1_len + 6 + hashlen != len ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &oid.len, MBEDTLS_ASN1_OID ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + oid.p = p; + p += oid.len; + + if( mbedtls_oid_get_md_alg( &oid, &msg_md_alg ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( md_alg != msg_md_alg ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + /* + * assume the algorithm parameters must be NULL + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, MBEDTLS_ASN1_NULL ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( asn1_len != hashlen ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( memcmp( p, hash, hashlen ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + p += hashlen; + + if( p != end ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Do an RSA operation and check the message digest + */ +int mbedtls_rsa_pkcs1_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsassa_pkcs1_v15_verify( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsassa_pss_verify( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +/* + * Copy the components of an RSA key + */ +int mbedtls_rsa_copy( mbedtls_rsa_context *dst, const mbedtls_rsa_context *src ) +{ + int ret; + + dst->ver = src->ver; + dst->len = src->len; + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->N, &src->N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->E, &src->E ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->D, &src->D ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->P, &src->P ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Q, &src->Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DP, &src->DP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DQ, &src->DQ ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->QP, &src->QP ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RN, &src->RN ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RP, &src->RP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RQ, &src->RQ ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vi, &src->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vf, &src->Vf ) ); + + dst->padding = src->padding; + dst->hash_id = src->hash_id; + +cleanup: + if( ret != 0 ) + mbedtls_rsa_free( dst ); + + return( ret ); +} + +/* + * Free the components of an RSA key + */ +void mbedtls_rsa_free( mbedtls_rsa_context *ctx ) +{ + mbedtls_mpi_free( &ctx->Vi ); mbedtls_mpi_free( &ctx->Vf ); + mbedtls_mpi_free( &ctx->RQ ); mbedtls_mpi_free( &ctx->RP ); mbedtls_mpi_free( &ctx->RN ); + mbedtls_mpi_free( &ctx->QP ); mbedtls_mpi_free( &ctx->DQ ); mbedtls_mpi_free( &ctx->DP ); + mbedtls_mpi_free( &ctx->Q ); mbedtls_mpi_free( &ctx->P ); mbedtls_mpi_free( &ctx->D ); + mbedtls_mpi_free( &ctx->E ); mbedtls_mpi_free( &ctx->N ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &ctx->mutex ); +#endif +} + +#if defined(MBEDTLS_SELF_TEST) + +#include "mbedtls/sha1.h" + +/* + * Example RSA-1024 keypair, for test purposes + */ +#define KEY_LEN 128 + +#define RSA_N "9292758453063D803DD603D5E777D788" \ + "8ED1D5BF35786190FA2F23EBC0848AEA" \ + "DDA92CA6C3D80B32C4D109BE0F36D6AE" \ + "7130B9CED7ACDF54CFC7555AC14EEBAB" \ + "93A89813FBF3C4F8066D2D800F7C38A8" \ + "1AE31942917403FF4946B0A83D3D3E05" \ + "EE57C6F5F5606FB5D4BC6CD34EE0801A" \ + "5E94BB77B07507233A0BC7BAC8F90F79" + +#define RSA_E "10001" + +#define RSA_D "24BF6185468786FDD303083D25E64EFC" \ + "66CA472BC44D253102F8B4A9D3BFA750" \ + "91386C0077937FE33FA3252D28855837" \ + "AE1B484A8A9A45F7EE8C0C634F99E8CD" \ + "DF79C5CE07EE72C7F123142198164234" \ + "CABB724CF78B8173B9F880FC86322407" \ + "AF1FEDFDDE2BEB674CA15F3E81A1521E" \ + "071513A1E85B5DFA031F21ECAE91A34D" + +#define RSA_P "C36D0EB7FCD285223CFB5AABA5BDA3D8" \ + "2C01CAD19EA484A87EA4377637E75500" \ + "FCB2005C5C7DD6EC4AC023CDA285D796" \ + "C3D9E75E1EFC42488BB4F1D13AC30A57" + +#define RSA_Q "C000DF51A7C77AE8D7C7370C1FF55B69" \ + "E211C2B9E5DB1ED0BF61D0D9899620F4" \ + "910E4168387E3C30AA1E00C339A79508" \ + "8452DD96A9A5EA5D9DCA68DA636032AF" + +#define RSA_DP "C1ACF567564274FB07A0BBAD5D26E298" \ + "3C94D22288ACD763FD8E5600ED4A702D" \ + "F84198A5F06C2E72236AE490C93F07F8" \ + "3CC559CD27BC2D1CA488811730BB5725" + +#define RSA_DQ "4959CBF6F8FEF750AEE6977C155579C7" \ + "D8AAEA56749EA28623272E4F7D0592AF" \ + "7C1F1313CAC9471B5C523BFE592F517B" \ + "407A1BD76C164B93DA2D32A383E58357" + +#define RSA_QP "9AE7FBC99546432DF71896FC239EADAE" \ + "F38D18D2B2F0E2DD275AA977E2BF4411" \ + "F5A3B2A5D33605AEBBCCBA7FEB9F2D2F" \ + "A74206CEC169D74BF5A8C50D6F48EA08" + +#define PT_LEN 24 +#define RSA_PT "\xAA\xBB\xCC\x03\x02\x01\x00\xFF\xFF\xFF\xFF\xFF" \ + "\x11\x22\x33\x0A\x0B\x0C\xCC\xDD\xDD\xDD\xDD\xDD" + +#if defined(MBEDTLS_PKCS1_V15) +static int myrand( void *rng_state, unsigned char *output, size_t len ) +{ +#if !defined(__OpenBSD__) + size_t i; + + if( rng_state != NULL ) + rng_state = NULL; + + for( i = 0; i < len; ++i ) + output[i] = rand(); +#else + if( rng_state != NULL ) + rng_state = NULL; + + arc4random_buf( output, len ); +#endif /* !OpenBSD */ + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Checkup routine + */ +int mbedtls_rsa_self_test( int verbose ) +{ + int ret = 0; +#if defined(MBEDTLS_PKCS1_V15) + size_t len; + mbedtls_rsa_context rsa; + unsigned char rsa_plaintext[PT_LEN]; + unsigned char rsa_decrypted[PT_LEN]; + unsigned char rsa_ciphertext[KEY_LEN]; +#if defined(MBEDTLS_SHA1_C) + unsigned char sha1sum[20]; +#endif + + mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 ); + + rsa.len = KEY_LEN; + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.N , 16, RSA_N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.E , 16, RSA_E ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.D , 16, RSA_D ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.P , 16, RSA_P ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.Q , 16, RSA_Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.DP, 16, RSA_DP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.DQ, 16, RSA_DQ ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.QP, 16, RSA_QP ) ); + + if( verbose != 0 ) + mbedtls_printf( " RSA key validation: " ); + + if( mbedtls_rsa_check_pubkey( &rsa ) != 0 || + mbedtls_rsa_check_privkey( &rsa ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n PKCS#1 encryption : " ); + + memcpy( rsa_plaintext, RSA_PT, PT_LEN ); + + if( mbedtls_rsa_pkcs1_encrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PUBLIC, PT_LEN, + rsa_plaintext, rsa_ciphertext ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n PKCS#1 decryption : " ); + + if( mbedtls_rsa_pkcs1_decrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PRIVATE, &len, + rsa_ciphertext, rsa_decrypted, + sizeof(rsa_decrypted) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( memcmp( rsa_decrypted, rsa_plaintext, len ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + +#if defined(MBEDTLS_SHA1_C) + if( verbose != 0 ) + mbedtls_printf( " PKCS#1 data sign : " ); + + mbedtls_sha1( rsa_plaintext, PT_LEN, sha1sum ); + + if( mbedtls_rsa_pkcs1_sign( &rsa, myrand, NULL, MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA1, 0, + sha1sum, rsa_ciphertext ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n PKCS#1 sig. verify: " ); + + if( mbedtls_rsa_pkcs1_verify( &rsa, NULL, NULL, MBEDTLS_RSA_PUBLIC, MBEDTLS_MD_SHA1, 0, + sha1sum, rsa_ciphertext ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); +#endif /* MBEDTLS_SHA1_C */ + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +cleanup: + mbedtls_rsa_free( &rsa ); +#else /* MBEDTLS_PKCS1_V15 */ + ((void) verbose); +#endif /* MBEDTLS_PKCS1_V15 */ + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_RSA_C */ diff --git a/mbedtls/sha1.c b/mbedtls/sha1.c new file mode 100644 index 0000000..2ccf2a2 --- /dev/null +++ b/mbedtls/sha1.c @@ -0,0 +1,448 @@ +/* + * FIPS-180-1 compliant SHA-1 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The SHA-1 standard was published by NIST in 1993. + * + * http://www.itl.nist.gov/fipspubs/fip180-1.htm + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SHA1_C) + +#include "mbedtls/sha1.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_SHA1_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +void mbedtls_sha1_init( mbedtls_sha1_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_sha1_context ) ); +} + +void mbedtls_sha1_free( mbedtls_sha1_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_sha1_context ) ); +} + +void mbedtls_sha1_clone( mbedtls_sha1_context *dst, + const mbedtls_sha1_context *src ) +{ + *dst = *src; +} + +/* + * SHA-1 context setup + */ +void mbedtls_sha1_starts( mbedtls_sha1_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; + ctx->state[4] = 0xC3D2E1F0; +} + +#if !defined(MBEDTLS_SHA1_PROCESS_ALT) +void mbedtls_sha1_process( mbedtls_sha1_context *ctx, const unsigned char data[64] ) +{ + uint32_t temp, W[16], A, B, C, D, E; + + GET_UINT32_BE( W[ 0], data, 0 ); + GET_UINT32_BE( W[ 1], data, 4 ); + GET_UINT32_BE( W[ 2], data, 8 ); + GET_UINT32_BE( W[ 3], data, 12 ); + GET_UINT32_BE( W[ 4], data, 16 ); + GET_UINT32_BE( W[ 5], data, 20 ); + GET_UINT32_BE( W[ 6], data, 24 ); + GET_UINT32_BE( W[ 7], data, 28 ); + GET_UINT32_BE( W[ 8], data, 32 ); + GET_UINT32_BE( W[ 9], data, 36 ); + GET_UINT32_BE( W[10], data, 40 ); + GET_UINT32_BE( W[11], data, 44 ); + GET_UINT32_BE( W[12], data, 48 ); + GET_UINT32_BE( W[13], data, 52 ); + GET_UINT32_BE( W[14], data, 56 ); + GET_UINT32_BE( W[15], data, 60 ); + +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + +#define R(t) \ +( \ + temp = W[( t - 3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \ + W[( t - 14 ) & 0x0F] ^ W[ t & 0x0F], \ + ( W[t & 0x0F] = S(temp,1) ) \ +) + +#define P(a,b,c,d,e,x) \ +{ \ + e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \ +} + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + E = ctx->state[4]; + +#define F(x,y,z) (z ^ (x & (y ^ z))) +#define K 0x5A827999 + + P( A, B, C, D, E, W[0] ); + P( E, A, B, C, D, W[1] ); + P( D, E, A, B, C, W[2] ); + P( C, D, E, A, B, W[3] ); + P( B, C, D, E, A, W[4] ); + P( A, B, C, D, E, W[5] ); + P( E, A, B, C, D, W[6] ); + P( D, E, A, B, C, W[7] ); + P( C, D, E, A, B, W[8] ); + P( B, C, D, E, A, W[9] ); + P( A, B, C, D, E, W[10] ); + P( E, A, B, C, D, W[11] ); + P( D, E, A, B, C, W[12] ); + P( C, D, E, A, B, W[13] ); + P( B, C, D, E, A, W[14] ); + P( A, B, C, D, E, W[15] ); + P( E, A, B, C, D, R(16) ); + P( D, E, A, B, C, R(17) ); + P( C, D, E, A, B, R(18) ); + P( B, C, D, E, A, R(19) ); + +#undef K +#undef F + +#define F(x,y,z) (x ^ y ^ z) +#define K 0x6ED9EBA1 + + P( A, B, C, D, E, R(20) ); + P( E, A, B, C, D, R(21) ); + P( D, E, A, B, C, R(22) ); + P( C, D, E, A, B, R(23) ); + P( B, C, D, E, A, R(24) ); + P( A, B, C, D, E, R(25) ); + P( E, A, B, C, D, R(26) ); + P( D, E, A, B, C, R(27) ); + P( C, D, E, A, B, R(28) ); + P( B, C, D, E, A, R(29) ); + P( A, B, C, D, E, R(30) ); + P( E, A, B, C, D, R(31) ); + P( D, E, A, B, C, R(32) ); + P( C, D, E, A, B, R(33) ); + P( B, C, D, E, A, R(34) ); + P( A, B, C, D, E, R(35) ); + P( E, A, B, C, D, R(36) ); + P( D, E, A, B, C, R(37) ); + P( C, D, E, A, B, R(38) ); + P( B, C, D, E, A, R(39) ); + +#undef K +#undef F + +#define F(x,y,z) ((x & y) | (z & (x | y))) +#define K 0x8F1BBCDC + + P( A, B, C, D, E, R(40) ); + P( E, A, B, C, D, R(41) ); + P( D, E, A, B, C, R(42) ); + P( C, D, E, A, B, R(43) ); + P( B, C, D, E, A, R(44) ); + P( A, B, C, D, E, R(45) ); + P( E, A, B, C, D, R(46) ); + P( D, E, A, B, C, R(47) ); + P( C, D, E, A, B, R(48) ); + P( B, C, D, E, A, R(49) ); + P( A, B, C, D, E, R(50) ); + P( E, A, B, C, D, R(51) ); + P( D, E, A, B, C, R(52) ); + P( C, D, E, A, B, R(53) ); + P( B, C, D, E, A, R(54) ); + P( A, B, C, D, E, R(55) ); + P( E, A, B, C, D, R(56) ); + P( D, E, A, B, C, R(57) ); + P( C, D, E, A, B, R(58) ); + P( B, C, D, E, A, R(59) ); + +#undef K +#undef F + +#define F(x,y,z) (x ^ y ^ z) +#define K 0xCA62C1D6 + + P( A, B, C, D, E, R(60) ); + P( E, A, B, C, D, R(61) ); + P( D, E, A, B, C, R(62) ); + P( C, D, E, A, B, R(63) ); + P( B, C, D, E, A, R(64) ); + P( A, B, C, D, E, R(65) ); + P( E, A, B, C, D, R(66) ); + P( D, E, A, B, C, R(67) ); + P( C, D, E, A, B, R(68) ); + P( B, C, D, E, A, R(69) ); + P( A, B, C, D, E, R(70) ); + P( E, A, B, C, D, R(71) ); + P( D, E, A, B, C, R(72) ); + P( C, D, E, A, B, R(73) ); + P( B, C, D, E, A, R(74) ); + P( A, B, C, D, E, R(75) ); + P( E, A, B, C, D, R(76) ); + P( D, E, A, B, C, R(77) ); + P( C, D, E, A, B, R(78) ); + P( B, C, D, E, A, R(79) ); + +#undef K +#undef F + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; + ctx->state[4] += E; +} +#endif /* !MBEDTLS_SHA1_PROCESS_ALT */ + +/* + * SHA-1 process buffer + */ +void mbedtls_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen ) +{ + size_t fill; + uint32_t left; + + if( ilen == 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += (uint32_t) ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (uint32_t) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + memcpy( (void *) (ctx->buffer + left), input, fill ); + mbedtls_sha1_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + mbedtls_sha1_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + memcpy( (void *) (ctx->buffer + left), input, ilen ); +} + +static const unsigned char sha1_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * SHA-1 final digest + */ +void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[20] ) +{ + uint32_t last, padn; + uint32_t high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_UINT32_BE( high, msglen, 0 ); + PUT_UINT32_BE( low, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + mbedtls_sha1_update( ctx, sha1_padding, padn ); + mbedtls_sha1_update( ctx, msglen, 8 ); + + PUT_UINT32_BE( ctx->state[0], output, 0 ); + PUT_UINT32_BE( ctx->state[1], output, 4 ); + PUT_UINT32_BE( ctx->state[2], output, 8 ); + PUT_UINT32_BE( ctx->state[3], output, 12 ); + PUT_UINT32_BE( ctx->state[4], output, 16 ); +} + +#endif /* !MBEDTLS_SHA1_ALT */ + +/* + * output = SHA-1( input buffer ) + */ +void mbedtls_sha1( const unsigned char *input, size_t ilen, unsigned char output[20] ) +{ + mbedtls_sha1_context ctx; + + mbedtls_sha1_init( &ctx ); + mbedtls_sha1_starts( &ctx ); + mbedtls_sha1_update( &ctx, input, ilen ); + mbedtls_sha1_finish( &ctx, output ); + mbedtls_sha1_free( &ctx ); +} + +#if defined(MBEDTLS_SELF_TEST) +/* + * FIPS-180-1 test vectors + */ +static const unsigned char sha1_test_buf[3][57] = +{ + { "abc" }, + { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" }, + { "" } +}; + +static const int sha1_test_buflen[3] = +{ + 3, 56, 1000 +}; + +static const unsigned char sha1_test_sum[3][20] = +{ + { 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E, + 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D }, + { 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE, + 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 }, + { 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E, + 0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F } +}; + +/* + * Checkup routine + */ +int mbedtls_sha1_self_test( int verbose ) +{ + int i, j, buflen, ret = 0; + unsigned char buf[1024]; + unsigned char sha1sum[20]; + mbedtls_sha1_context ctx; + + mbedtls_sha1_init( &ctx ); + + /* + * SHA-1 + */ + for( i = 0; i < 3; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " SHA-1 test #%d: ", i + 1 ); + + mbedtls_sha1_starts( &ctx ); + + if( i == 2 ) + { + memset( buf, 'a', buflen = 1000 ); + + for( j = 0; j < 1000; j++ ) + mbedtls_sha1_update( &ctx, buf, buflen ); + } + else + mbedtls_sha1_update( &ctx, sha1_test_buf[i], + sha1_test_buflen[i] ); + + mbedtls_sha1_finish( &ctx, sha1sum ); + + if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +exit: + mbedtls_sha1_free( &ctx ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_SHA1_C */ diff --git a/mbedtls/sha256.c b/mbedtls/sha256.c new file mode 100644 index 0000000..ad25d38 --- /dev/null +++ b/mbedtls/sha256.c @@ -0,0 +1,458 @@ +/* + * FIPS-180-2 compliant SHA-256 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The SHA-256 Secure Hash Standard was published by NIST in 2002. + * + * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SHA256_C) + +#include "mbedtls/sha256.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_printf printf +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_SHA256_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +do { \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} while( 0 ) +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +do { \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} while( 0 ) +#endif + +void mbedtls_sha256_init( mbedtls_sha256_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_sha256_context ) ); +} + +void mbedtls_sha256_free( mbedtls_sha256_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_sha256_context ) ); +} + +void mbedtls_sha256_clone( mbedtls_sha256_context *dst, + const mbedtls_sha256_context *src ) +{ + *dst = *src; +} + +/* + * SHA-256 context setup + */ +void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + if( is224 == 0 ) + { + /* SHA-256 */ + ctx->state[0] = 0x6A09E667; + ctx->state[1] = 0xBB67AE85; + ctx->state[2] = 0x3C6EF372; + ctx->state[3] = 0xA54FF53A; + ctx->state[4] = 0x510E527F; + ctx->state[5] = 0x9B05688C; + ctx->state[6] = 0x1F83D9AB; + ctx->state[7] = 0x5BE0CD19; + } + else + { + /* SHA-224 */ + ctx->state[0] = 0xC1059ED8; + ctx->state[1] = 0x367CD507; + ctx->state[2] = 0x3070DD17; + ctx->state[3] = 0xF70E5939; + ctx->state[4] = 0xFFC00B31; + ctx->state[5] = 0x68581511; + ctx->state[6] = 0x64F98FA7; + ctx->state[7] = 0xBEFA4FA4; + } + + ctx->is224 = is224; +} + +#if !defined(MBEDTLS_SHA256_PROCESS_ALT) +static const uint32_t K[] = +{ + 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5, + 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5, + 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3, + 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174, + 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC, + 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA, + 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7, + 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967, + 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13, + 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85, + 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3, + 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070, + 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5, + 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3, + 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208, + 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2, +}; + +#define SHR(x,n) ((x & 0xFFFFFFFF) >> n) +#define ROTR(x,n) (SHR(x,n) | (x << (32 - n))) + +#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3)) +#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10)) + +#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22)) +#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25)) + +#define F0(x,y,z) ((x & y) | (z & (x | y))) +#define F1(x,y,z) (z ^ (x & (y ^ z))) + +#define R(t) \ +( \ + W[t] = S1(W[t - 2]) + W[t - 7] + \ + S0(W[t - 15]) + W[t - 16] \ +) + +#define P(a,b,c,d,e,f,g,h,x,K) \ +{ \ + temp1 = h + S3(e) + F1(e,f,g) + K + x; \ + temp2 = S2(a) + F0(a,b,c); \ + d += temp1; h = temp1 + temp2; \ +} + +void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] ) +{ + uint32_t temp1, temp2, W[64]; + uint32_t A[8]; + unsigned int i; + + for( i = 0; i < 8; i++ ) + A[i] = ctx->state[i]; + +#if defined(MBEDTLS_SHA256_SMALLER) + for( i = 0; i < 64; i++ ) + { + if( i < 16 ) + GET_UINT32_BE( W[i], data, 4 * i ); + else + R( i ); + + P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] ); + + temp1 = A[7]; A[7] = A[6]; A[6] = A[5]; A[5] = A[4]; A[4] = A[3]; + A[3] = A[2]; A[2] = A[1]; A[1] = A[0]; A[0] = temp1; + } +#else /* MBEDTLS_SHA256_SMALLER */ + for( i = 0; i < 16; i++ ) + GET_UINT32_BE( W[i], data, 4 * i ); + + for( i = 0; i < 16; i += 8 ) + { + P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i+0], K[i+0] ); + P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], W[i+1], K[i+1] ); + P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], W[i+2], K[i+2] ); + P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], W[i+3], K[i+3] ); + P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], W[i+4], K[i+4] ); + P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], W[i+5], K[i+5] ); + P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], W[i+6], K[i+6] ); + P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], W[i+7], K[i+7] ); + } + + for( i = 16; i < 64; i += 8 ) + { + P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], R(i+0), K[i+0] ); + P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], R(i+1), K[i+1] ); + P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], R(i+2), K[i+2] ); + P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], R(i+3), K[i+3] ); + P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], R(i+4), K[i+4] ); + P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], R(i+5), K[i+5] ); + P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], R(i+6), K[i+6] ); + P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], R(i+7), K[i+7] ); + } +#endif /* MBEDTLS_SHA256_SMALLER */ + + for( i = 0; i < 8; i++ ) + ctx->state[i] += A[i]; +} +#endif /* !MBEDTLS_SHA256_PROCESS_ALT */ + +/* + * SHA-256 process buffer + */ +void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input, + size_t ilen ) +{ + size_t fill; + uint32_t left; + + if( ilen == 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += (uint32_t) ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (uint32_t) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + memcpy( (void *) (ctx->buffer + left), input, fill ); + mbedtls_sha256_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + mbedtls_sha256_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + memcpy( (void *) (ctx->buffer + left), input, ilen ); +} + +static const unsigned char sha256_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * SHA-256 final digest + */ +void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] ) +{ + uint32_t last, padn; + uint32_t high, low; + unsigned char msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_UINT32_BE( high, msglen, 0 ); + PUT_UINT32_BE( low, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + mbedtls_sha256_update( ctx, sha256_padding, padn ); + mbedtls_sha256_update( ctx, msglen, 8 ); + + PUT_UINT32_BE( ctx->state[0], output, 0 ); + PUT_UINT32_BE( ctx->state[1], output, 4 ); + PUT_UINT32_BE( ctx->state[2], output, 8 ); + PUT_UINT32_BE( ctx->state[3], output, 12 ); + PUT_UINT32_BE( ctx->state[4], output, 16 ); + PUT_UINT32_BE( ctx->state[5], output, 20 ); + PUT_UINT32_BE( ctx->state[6], output, 24 ); + + if( ctx->is224 == 0 ) + PUT_UINT32_BE( ctx->state[7], output, 28 ); +} + +#endif /* !MBEDTLS_SHA256_ALT */ + +/* + * output = SHA-256( input buffer ) + */ +void mbedtls_sha256( const unsigned char *input, size_t ilen, + unsigned char output[32], int is224 ) +{ + mbedtls_sha256_context ctx; + + mbedtls_sha256_init( &ctx ); + mbedtls_sha256_starts( &ctx, is224 ); + mbedtls_sha256_update( &ctx, input, ilen ); + mbedtls_sha256_finish( &ctx, output ); + mbedtls_sha256_free( &ctx ); +} + +#if defined(MBEDTLS_SELF_TEST) +/* + * FIPS-180-2 test vectors + */ +static const unsigned char sha256_test_buf[3][57] = +{ + { "abc" }, + { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" }, + { "" } +}; + +static const int sha256_test_buflen[3] = +{ + 3, 56, 1000 +}; + +static const unsigned char sha256_test_sum[6][32] = +{ + /* + * SHA-224 test vectors + */ + { 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22, + 0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3, + 0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7, + 0xE3, 0x6C, 0x9D, 0xA7 }, + { 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC, + 0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50, + 0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19, + 0x52, 0x52, 0x25, 0x25 }, + { 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8, + 0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B, + 0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE, + 0x4E, 0xE7, 0xAD, 0x67 }, + + /* + * SHA-256 test vectors + */ + { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA, + 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23, + 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C, + 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD }, + { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8, + 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39, + 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67, + 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 }, + { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92, + 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67, + 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E, + 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 } +}; + +/* + * Checkup routine + */ +int mbedtls_sha256_self_test( int verbose ) +{ + int i, j, k, buflen, ret = 0; + unsigned char *buf; + unsigned char sha256sum[32]; + mbedtls_sha256_context ctx; + + buf = mbedtls_calloc( 1024, sizeof(unsigned char) ); + if( NULL == buf ) + { + if( verbose != 0 ) + mbedtls_printf( "Buffer allocation failed\n" ); + + return( 1 ); + } + + mbedtls_sha256_init( &ctx ); + + for( i = 0; i < 6; i++ ) + { + j = i % 3; + k = i < 3; + + if( verbose != 0 ) + mbedtls_printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 ); + + mbedtls_sha256_starts( &ctx, k ); + + if( j == 2 ) + { + memset( buf, 'a', buflen = 1000 ); + + for( j = 0; j < 1000; j++ ) + mbedtls_sha256_update( &ctx, buf, buflen ); + } + else + mbedtls_sha256_update( &ctx, sha256_test_buf[j], + sha256_test_buflen[j] ); + + mbedtls_sha256_finish( &ctx, sha256sum ); + + if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +exit: + mbedtls_sha256_free( &ctx ); + mbedtls_free( buf ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_SHA256_C */ diff --git a/mbedtls/sha512.c b/mbedtls/sha512.c new file mode 100644 index 0000000..724522a --- /dev/null +++ b/mbedtls/sha512.c @@ -0,0 +1,514 @@ +/* + * FIPS-180-2 compliant SHA-384/512 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The SHA-512 Secure Hash Standard was published by NIST in 2002. + * + * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SHA512_C) + +#include "mbedtls/sha512.h" + +#if defined(_MSC_VER) || defined(__WATCOMC__) + #define UL64(x) x##ui64 +#else + #define UL64(x) x##ULL +#endif + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_printf printf +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_SHA512_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * 64-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT64_BE +#define GET_UINT64_BE(n,b,i) \ +{ \ + (n) = ( (uint64_t) (b)[(i) ] << 56 ) \ + | ( (uint64_t) (b)[(i) + 1] << 48 ) \ + | ( (uint64_t) (b)[(i) + 2] << 40 ) \ + | ( (uint64_t) (b)[(i) + 3] << 32 ) \ + | ( (uint64_t) (b)[(i) + 4] << 24 ) \ + | ( (uint64_t) (b)[(i) + 5] << 16 ) \ + | ( (uint64_t) (b)[(i) + 6] << 8 ) \ + | ( (uint64_t) (b)[(i) + 7] ); \ +} +#endif /* GET_UINT64_BE */ + +#ifndef PUT_UINT64_BE +#define PUT_UINT64_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 56 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \ + (b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 7] = (unsigned char) ( (n) ); \ +} +#endif /* PUT_UINT64_BE */ + +void mbedtls_sha512_init( mbedtls_sha512_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_sha512_context ) ); +} + +void mbedtls_sha512_free( mbedtls_sha512_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_sha512_context ) ); +} + +void mbedtls_sha512_clone( mbedtls_sha512_context *dst, + const mbedtls_sha512_context *src ) +{ + *dst = *src; +} + +/* + * SHA-512 context setup + */ +void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + if( is384 == 0 ) + { + /* SHA-512 */ + ctx->state[0] = UL64(0x6A09E667F3BCC908); + ctx->state[1] = UL64(0xBB67AE8584CAA73B); + ctx->state[2] = UL64(0x3C6EF372FE94F82B); + ctx->state[3] = UL64(0xA54FF53A5F1D36F1); + ctx->state[4] = UL64(0x510E527FADE682D1); + ctx->state[5] = UL64(0x9B05688C2B3E6C1F); + ctx->state[6] = UL64(0x1F83D9ABFB41BD6B); + ctx->state[7] = UL64(0x5BE0CD19137E2179); + } + else + { + /* SHA-384 */ + ctx->state[0] = UL64(0xCBBB9D5DC1059ED8); + ctx->state[1] = UL64(0x629A292A367CD507); + ctx->state[2] = UL64(0x9159015A3070DD17); + ctx->state[3] = UL64(0x152FECD8F70E5939); + ctx->state[4] = UL64(0x67332667FFC00B31); + ctx->state[5] = UL64(0x8EB44A8768581511); + ctx->state[6] = UL64(0xDB0C2E0D64F98FA7); + ctx->state[7] = UL64(0x47B5481DBEFA4FA4); + } + + ctx->is384 = is384; +} + +#if !defined(MBEDTLS_SHA512_PROCESS_ALT) + +/* + * Round constants + */ +static const uint64_t K[80] = +{ + UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD), + UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC), + UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019), + UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118), + UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE), + UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2), + UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1), + UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694), + UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3), + UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65), + UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483), + UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5), + UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210), + UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4), + UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725), + UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70), + UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926), + UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF), + UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8), + UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B), + UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001), + UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30), + UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910), + UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8), + UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53), + UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8), + UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB), + UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3), + UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60), + UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC), + UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9), + UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B), + UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207), + UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178), + UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6), + UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B), + UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493), + UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C), + UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A), + UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817) +}; + +void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[128] ) +{ + int i; + uint64_t temp1, temp2, W[80]; + uint64_t A, B, C, D, E, F, G, H; + +#define SHR(x,n) (x >> n) +#define ROTR(x,n) (SHR(x,n) | (x << (64 - n))) + +#define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7)) +#define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6)) + +#define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39)) +#define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41)) + +#define F0(x,y,z) ((x & y) | (z & (x | y))) +#define F1(x,y,z) (z ^ (x & (y ^ z))) + +#define P(a,b,c,d,e,f,g,h,x,K) \ +{ \ + temp1 = h + S3(e) + F1(e,f,g) + K + x; \ + temp2 = S2(a) + F0(a,b,c); \ + d += temp1; h = temp1 + temp2; \ +} + + for( i = 0; i < 16; i++ ) + { + GET_UINT64_BE( W[i], data, i << 3 ); + } + + for( ; i < 80; i++ ) + { + W[i] = S1(W[i - 2]) + W[i - 7] + + S0(W[i - 15]) + W[i - 16]; + } + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + E = ctx->state[4]; + F = ctx->state[5]; + G = ctx->state[6]; + H = ctx->state[7]; + i = 0; + + do + { + P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++; + P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++; + P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++; + P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++; + P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++; + P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++; + P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++; + P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++; + } + while( i < 80 ); + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; + ctx->state[4] += E; + ctx->state[5] += F; + ctx->state[6] += G; + ctx->state[7] += H; +} +#endif /* !MBEDTLS_SHA512_PROCESS_ALT */ + +/* + * SHA-512 process buffer + */ +void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input, + size_t ilen ) +{ + size_t fill; + unsigned int left; + + if( ilen == 0 ) + return; + + left = (unsigned int) (ctx->total[0] & 0x7F); + fill = 128 - left; + + ctx->total[0] += (uint64_t) ilen; + + if( ctx->total[0] < (uint64_t) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + memcpy( (void *) (ctx->buffer + left), input, fill ); + mbedtls_sha512_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 128 ) + { + mbedtls_sha512_process( ctx, input ); + input += 128; + ilen -= 128; + } + + if( ilen > 0 ) + memcpy( (void *) (ctx->buffer + left), input, ilen ); +} + +static const unsigned char sha512_padding[128] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* + * SHA-512 final digest + */ +void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char output[64] ) +{ + size_t last, padn; + uint64_t high, low; + unsigned char msglen[16]; + + high = ( ctx->total[0] >> 61 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_UINT64_BE( high, msglen, 0 ); + PUT_UINT64_BE( low, msglen, 8 ); + + last = (size_t)( ctx->total[0] & 0x7F ); + padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last ); + + mbedtls_sha512_update( ctx, sha512_padding, padn ); + mbedtls_sha512_update( ctx, msglen, 16 ); + + PUT_UINT64_BE( ctx->state[0], output, 0 ); + PUT_UINT64_BE( ctx->state[1], output, 8 ); + PUT_UINT64_BE( ctx->state[2], output, 16 ); + PUT_UINT64_BE( ctx->state[3], output, 24 ); + PUT_UINT64_BE( ctx->state[4], output, 32 ); + PUT_UINT64_BE( ctx->state[5], output, 40 ); + + if( ctx->is384 == 0 ) + { + PUT_UINT64_BE( ctx->state[6], output, 48 ); + PUT_UINT64_BE( ctx->state[7], output, 56 ); + } +} + +#endif /* !MBEDTLS_SHA512_ALT */ + +/* + * output = SHA-512( input buffer ) + */ +void mbedtls_sha512( const unsigned char *input, size_t ilen, + unsigned char output[64], int is384 ) +{ + mbedtls_sha512_context ctx; + + mbedtls_sha512_init( &ctx ); + mbedtls_sha512_starts( &ctx, is384 ); + mbedtls_sha512_update( &ctx, input, ilen ); + mbedtls_sha512_finish( &ctx, output ); + mbedtls_sha512_free( &ctx ); +} + +#if defined(MBEDTLS_SELF_TEST) + +/* + * FIPS-180-2 test vectors + */ +static const unsigned char sha512_test_buf[3][113] = +{ + { "abc" }, + { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn" + "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" }, + { "" } +}; + +static const int sha512_test_buflen[3] = +{ + 3, 112, 1000 +}; + +static const unsigned char sha512_test_sum[6][64] = +{ + /* + * SHA-384 test vectors + */ + { 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B, + 0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07, + 0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63, + 0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED, + 0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23, + 0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 }, + { 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8, + 0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47, + 0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2, + 0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12, + 0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9, + 0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 }, + { 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB, + 0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C, + 0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52, + 0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B, + 0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB, + 0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 }, + + /* + * SHA-512 test vectors + */ + { 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA, + 0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31, + 0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2, + 0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A, + 0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8, + 0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD, + 0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E, + 0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F }, + { 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA, + 0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F, + 0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1, + 0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18, + 0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4, + 0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A, + 0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54, + 0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 }, + { 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64, + 0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63, + 0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28, + 0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB, + 0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A, + 0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B, + 0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E, + 0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B } +}; + +/* + * Checkup routine + */ +int mbedtls_sha512_self_test( int verbose ) +{ + int i, j, k, buflen, ret = 0; + unsigned char *buf; + unsigned char sha512sum[64]; + mbedtls_sha512_context ctx; + + buf = mbedtls_calloc( 1024, sizeof(unsigned char) ); + if( NULL == buf ) + { + if( verbose != 0 ) + mbedtls_printf( "Buffer allocation failed\n" ); + + return( 1 ); + } + + mbedtls_sha512_init( &ctx ); + + for( i = 0; i < 6; i++ ) + { + j = i % 3; + k = i < 3; + + if( verbose != 0 ) + mbedtls_printf( " SHA-%d test #%d: ", 512 - k * 128, j + 1 ); + + mbedtls_sha512_starts( &ctx, k ); + + if( j == 2 ) + { + memset( buf, 'a', buflen = 1000 ); + + for( j = 0; j < 1000; j++ ) + mbedtls_sha512_update( &ctx, buf, buflen ); + } + else + mbedtls_sha512_update( &ctx, sha512_test_buf[j], + sha512_test_buflen[j] ); + + mbedtls_sha512_finish( &ctx, sha512sum ); + + if( memcmp( sha512sum, sha512_test_sum[i], 64 - k * 16 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +exit: + mbedtls_sha512_free( &ctx ); + mbedtls_free( buf ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_SHA512_C */ diff --git a/mbedtls/ssl_cache.c b/mbedtls/ssl_cache.c new file mode 100644 index 0000000..9b62de2 --- /dev/null +++ b/mbedtls/ssl_cache.c @@ -0,0 +1,326 @@ +/* + * SSL session cache implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * These session callbacks use a simple chained list + * to store and retrieve the session information. + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SSL_CACHE_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include "mbedtls/ssl_cache.h" + +#include + +void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache ) +{ + memset( cache, 0, sizeof( mbedtls_ssl_cache_context ) ); + + cache->timeout = MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT; + cache->max_entries = MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES; + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &cache->mutex ); +#endif +} + +int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session ) +{ + int ret = 1; +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t t = mbedtls_time( NULL ); +#endif + mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data; + mbedtls_ssl_cache_entry *cur, *entry; + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_lock( &cache->mutex ) != 0 ) + return( 1 ); +#endif + + cur = cache->chain; + entry = NULL; + + while( cur != NULL ) + { + entry = cur; + cur = cur->next; + +#if defined(MBEDTLS_HAVE_TIME) + if( cache->timeout != 0 && + (int) ( t - entry->timestamp ) > cache->timeout ) + continue; +#endif + + if( session->ciphersuite != entry->session.ciphersuite || + session->compression != entry->session.compression || + session->id_len != entry->session.id_len ) + continue; + + if( memcmp( session->id, entry->session.id, + entry->session.id_len ) != 0 ) + continue; + + memcpy( session->master, entry->session.master, 48 ); + + session->verify_result = entry->session.verify_result; + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /* + * Restore peer certificate (without rest of the original chain) + */ + if( entry->peer_cert.p != NULL ) + { + if( ( session->peer_cert = mbedtls_calloc( 1, + sizeof(mbedtls_x509_crt) ) ) == NULL ) + { + ret = 1; + goto exit; + } + + mbedtls_x509_crt_init( session->peer_cert ); + if( mbedtls_x509_crt_parse( session->peer_cert, entry->peer_cert.p, + entry->peer_cert.len ) != 0 ) + { + mbedtls_free( session->peer_cert ); + session->peer_cert = NULL; + ret = 1; + goto exit; + } + } +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + ret = 0; + goto exit; + } + +exit: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &cache->mutex ) != 0 ) + ret = 1; +#endif + + return( ret ); +} + +int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session ) +{ + int ret = 1; +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t t = time( NULL ), oldest = 0; + mbedtls_ssl_cache_entry *old = NULL; +#endif + mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data; + mbedtls_ssl_cache_entry *cur, *prv; + int count = 0; + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &cache->mutex ) ) != 0 ) + return( ret ); +#endif + + cur = cache->chain; + prv = NULL; + + while( cur != NULL ) + { + count++; + +#if defined(MBEDTLS_HAVE_TIME) + if( cache->timeout != 0 && + (int) ( t - cur->timestamp ) > cache->timeout ) + { + cur->timestamp = t; + break; /* expired, reuse this slot, update timestamp */ + } +#endif + + if( memcmp( session->id, cur->session.id, cur->session.id_len ) == 0 ) + break; /* client reconnected, keep timestamp for session id */ + +#if defined(MBEDTLS_HAVE_TIME) + if( oldest == 0 || cur->timestamp < oldest ) + { + oldest = cur->timestamp; + old = cur; + } +#endif + + prv = cur; + cur = cur->next; + } + + if( cur == NULL ) + { +#if defined(MBEDTLS_HAVE_TIME) + /* + * Reuse oldest entry if max_entries reached + */ + if( count >= cache->max_entries ) + { + if( old == NULL ) + { + ret = 1; + goto exit; + } + + cur = old; + } +#else /* MBEDTLS_HAVE_TIME */ + /* + * Reuse first entry in chain if max_entries reached, + * but move to last place + */ + if( count >= cache->max_entries ) + { + if( cache->chain == NULL ) + { + ret = 1; + goto exit; + } + + cur = cache->chain; + cache->chain = cur->next; + cur->next = NULL; + prv->next = cur; + } +#endif /* MBEDTLS_HAVE_TIME */ + else + { + /* + * max_entries not reached, create new entry + */ + cur = mbedtls_calloc( 1, sizeof(mbedtls_ssl_cache_entry) ); + if( cur == NULL ) + { + ret = 1; + goto exit; + } + + if( prv == NULL ) + cache->chain = cur; + else + prv->next = cur; + } + +#if defined(MBEDTLS_HAVE_TIME) + cur->timestamp = t; +#endif + } + + memcpy( &cur->session, session, sizeof( mbedtls_ssl_session ) ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /* + * If we're reusing an entry, free its certificate first + */ + if( cur->peer_cert.p != NULL ) + { + mbedtls_free( cur->peer_cert.p ); + memset( &cur->peer_cert, 0, sizeof(mbedtls_x509_buf) ); + } + + /* + * Store peer certificate + */ + if( session->peer_cert != NULL ) + { + cur->peer_cert.p = mbedtls_calloc( 1, session->peer_cert->raw.len ); + if( cur->peer_cert.p == NULL ) + { + ret = 1; + goto exit; + } + + memcpy( cur->peer_cert.p, session->peer_cert->raw.p, + session->peer_cert->raw.len ); + cur->peer_cert.len = session->peer_cert->raw.len; + + cur->session.peer_cert = NULL; + } +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + ret = 0; + +exit: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &cache->mutex ) != 0 ) + ret = 1; +#endif + + return( ret ); +} + +#if defined(MBEDTLS_HAVE_TIME) +void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout ) +{ + if( timeout < 0 ) timeout = 0; + + cache->timeout = timeout; +} +#endif /* MBEDTLS_HAVE_TIME */ + +void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max ) +{ + if( max < 0 ) max = 0; + + cache->max_entries = max; +} + +void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache ) +{ + mbedtls_ssl_cache_entry *cur, *prv; + + cur = cache->chain; + + while( cur != NULL ) + { + prv = cur; + cur = cur->next; + + mbedtls_ssl_session_free( &prv->session ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + mbedtls_free( prv->peer_cert.p ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + mbedtls_free( prv ); + } + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &cache->mutex ); +#endif +} + +#endif /* MBEDTLS_SSL_CACHE_C */ diff --git a/mbedtls/ssl_ciphersuites.c b/mbedtls/ssl_ciphersuites.c new file mode 100644 index 0000000..a762bf7 --- /dev/null +++ b/mbedtls/ssl_ciphersuites.c @@ -0,0 +1,1857 @@ +/** + * \file ssl_ciphersuites.c + * + * \brief SSL ciphersuites for mbed TLS + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SSL_TLS_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#endif + +#include "mbedtls/ssl_ciphersuites.h" +#include "mbedtls/ssl.h" + +#include + +/* + * Ordered from most preferred to least preferred in terms of security. + * + * Current rule (except rc4, weak and null which come last): + * 1. By key exchange: + * Forward-secure non-PSK > forward-secure PSK > ECJPAKE > other non-PSK > other PSK + * 2. By key length and cipher: + * AES-256 > Camellia-256 > AES-128 > Camellia-128 > 3DES + * 3. By cipher mode when relevant GCM > CCM > CBC > CCM_8 + * 4. By hash function used when relevant + * 5. By key exchange/auth again: EC > non-EC + */ +static const int ciphersuite_preference[] = +{ +#if defined(MBEDTLS_SSL_CIPHERSUITES) + MBEDTLS_SSL_CIPHERSUITES, +#else + /* All AES-256 ephemeral suites */ + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM, + MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8, + MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8, + + /* All CAMELLIA-256 ephemeral suites */ + MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, + MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384, + MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256, + MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, + + /* All AES-128 ephemeral suites */ + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM, + MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, + MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8, + + /* All CAMELLIA-128 ephemeral suites */ + MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, + + /* All remaining >= 128-bit ephemeral suites */ + MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, + MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, + MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, + + /* The PSK ephemeral suites */ + MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM, + MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, + MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, + MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8, + + MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM, + MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8, + + MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA, + MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, + + /* The ECJPAKE suite */ + MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8, + + /* All AES-256 suites */ + MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_RSA_WITH_AES_256_CCM, + MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256, + MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8, + + /* All CAMELLIA-256 suites */ + MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256, + MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA, + MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384, + MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, + + /* All AES-128 suites */ + MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_RSA_WITH_AES_128_CCM, + MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8, + + /* All CAMELLIA-128 suites */ + MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, + MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, + + /* All remaining >= 128-bit suites */ + MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA, + MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, + MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, + + /* The RSA PSK suites */ + MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384, + + MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256, + + MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, + + /* The PSK suites */ + MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384, + MBEDTLS_TLS_PSK_WITH_AES_256_CCM, + MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384, + MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA, + MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384, + MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384, + MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, + + MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_PSK_WITH_AES_128_CCM, + MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256, + MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA, + MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256, + MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256, + MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8, + + MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA, + + /* RC4 suites */ + MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, + MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA, + MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA, + MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA, + MBEDTLS_TLS_RSA_WITH_RC4_128_SHA, + MBEDTLS_TLS_RSA_WITH_RC4_128_MD5, + MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA, + MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA, + MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA, + MBEDTLS_TLS_PSK_WITH_RC4_128_SHA, + + /* Weak suites */ + MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA, + MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA, + + /* NULL suites */ + MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA, + MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA, + MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384, + MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256, + MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA, + MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384, + MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256, + MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA, + + MBEDTLS_TLS_RSA_WITH_NULL_SHA256, + MBEDTLS_TLS_RSA_WITH_NULL_SHA, + MBEDTLS_TLS_RSA_WITH_NULL_MD5, + MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA, + MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA, + MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384, + MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256, + MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA, + MBEDTLS_TLS_PSK_WITH_NULL_SHA384, + MBEDTLS_TLS_PSK_WITH_NULL_SHA256, + MBEDTLS_TLS_PSK_WITH_NULL_SHA, + +#endif /* MBEDTLS_SSL_CIPHERSUITES */ + 0 +}; + +static const mbedtls_ssl_ciphersuite_t ciphersuite_definitions[] = +{ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_SHA1_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA512_C */ +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM-8", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, +#endif /* MBEDTLS_CCM_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, "TLS-ECDHE-ECDSA-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA, "TLS-ECDHE-ECDSA-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_SHA1_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-RSA-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA, "TLS-ECDHE-RSA-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA, "TLS-ECDHE-RSA-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-DHE-RSA-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_SHA256_C) +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-DHE-RSA-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA256", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM, "TLS-DHE-RSA-WITH-AES-256-CCM", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8, "TLS-DHE-RSA-WITH-AES-256-CCM-8", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, + { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM, "TLS-DHE-RSA-WITH-AES-128-CCM", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8, "TLS-DHE-RSA-WITH-AES-128-CCM-8", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, +#endif /* MBEDTLS_CCM_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-RSA-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-RSA-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384, "TLS-RSA-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_SHA256_C) +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256, "TLS-RSA-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256, "TLS-RSA-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256, "TLS-RSA-WITH-AES-256-CBC-SHA256", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA1_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA, "TLS-RSA-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA, "TLS-RSA-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_TLS_RSA_WITH_AES_256_CCM, "TLS-RSA-WITH-AES-256-CCM", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8, "TLS-RSA-WITH-AES-256-CCM-8", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, + { MBEDTLS_TLS_RSA_WITH_AES_128_CCM, "TLS-RSA-WITH-AES-128-CCM", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8, "TLS-RSA-WITH-AES-128-CCM-8", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, +#endif /* MBEDTLS_CCM_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_MD5_C) + { MBEDTLS_TLS_RSA_WITH_RC4_128_MD5, "TLS-RSA-WITH-RC4-128-MD5", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_WITH_RC4_128_SHA, "TLS-RSA-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif +#endif /* MBEDTLS_ARC4_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_SHA1_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-RSA-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA, "TLS-ECDH-RSA-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA, "TLS-ECDH-RSA-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ +#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_SHA1_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_GCM_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-ECDSA-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA, "TLS-ECDH-ECDSA-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA, "TLS-ECDH-ECDSA-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ +#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256, "TLS-PSK-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384, "TLS-PSK-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256, "TLS-PSK-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384, "TLS-PSK-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA, "TLS-PSK-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA, "TLS-PSK-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_TLS_PSK_WITH_AES_256_CCM, "TLS-PSK-WITH-AES-256-CCM", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, "TLS-PSK-WITH-AES-256-CCM-8", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, + { MBEDTLS_TLS_PSK_WITH_AES_128_CCM, "TLS-PSK-WITH-AES-128-CCM", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8, "TLS-PSK-WITH-AES-128-CCM-8", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, +#endif /* MBEDTLS_CCM_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-PSK-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-PSK-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-PSK-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-PSK-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-PSK-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_PSK_WITH_RC4_128_SHA, "TLS-PSK-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, "TLS-DHE-PSK-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, "TLS-DHE-PSK-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM, "TLS-DHE-PSK-WITH-AES-256-CCM", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8, "TLS-DHE-PSK-WITH-AES-256-CCM-8", + MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, + { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM, "TLS-DHE-PSK-WITH-AES-128-CCM", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8, "TLS-DHE-PSK-WITH-AES-128-CCM-8", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, +#endif /* MBEDTLS_CCM_C */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-PSK-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA, "TLS-DHE-PSK-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +#if defined(MBEDTLS_AES_C) + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-PSK-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA, "TLS-ECDHE-PSK-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, "TLS-RSA-PSK-WITH-AES-128-GCM-SHA256", + MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, "TLS-RSA-PSK-WITH-AES-256-GCM-SHA384", + MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA256", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA384", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA", + MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, + + { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA", + MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_CAMELLIA_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-CBC-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-CBC-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_GCM_C) +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-GCM-SHA256", + MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-GCM-SHA384", + MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_GCM_C */ +#endif /* MBEDTLS_CAMELLIA_C */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-PSK-WITH-3DES-EDE-CBC-SHA", + MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + 0 }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ + +#if defined(MBEDTLS_ARC4_C) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA, "TLS-RSA-PSK-WITH-RC4-128-SHA", + MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_NODTLS }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_ARC4_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +#if defined(MBEDTLS_AES_C) +#if defined(MBEDTLS_CCM_C) + { MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8, "TLS-ECJPAKE-WITH-AES-128-CCM-8", + MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECJPAKE, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_SHORT_TAG }, +#endif /* MBEDTLS_CCM_C */ +#endif /* MBEDTLS_AES_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES) +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) +#if defined(MBEDTLS_MD5_C) + { MBEDTLS_TLS_RSA_WITH_NULL_MD5, "TLS-RSA-WITH-NULL-MD5", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif + +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_WITH_NULL_SHA, "TLS-RSA-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif + +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_WITH_NULL_SHA256, "TLS-RSA-WITH-NULL-SHA256", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_PSK_WITH_NULL_SHA, "TLS-PSK-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ + +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_PSK_WITH_NULL_SHA256, "TLS-PSK-WITH-NULL-SHA256", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_PSK_WITH_NULL_SHA384, "TLS-PSK-WITH-NULL-SHA384", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif +#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA, "TLS-DHE-PSK-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ + +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256, "TLS-DHE-PSK-WITH-NULL-SHA256", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384, "TLS-DHE-PSK-WITH-NULL-SHA384", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA, "TLS-ECDHE-PSK-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ + +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256, "TLS-ECDHE-PSK-WITH-NULL-SHA256", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384, "TLS-ECDHE-PSK-WITH-NULL-SHA384", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA, "TLS-RSA-PSK-WITH-NULL-SHA", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ + +#if defined(MBEDTLS_SHA256_C) + { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256, "TLS-RSA-PSK-WITH-NULL-SHA256", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif + +#if defined(MBEDTLS_SHA512_C) + { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384, "TLS-RSA-PSK-WITH-NULL-SHA384", + MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ +#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ + +#if defined(MBEDTLS_DES_C) +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA, "TLS-DHE-RSA-WITH-DES-CBC-SHA", + MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) +#if defined(MBEDTLS_SHA1_C) + { MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA, "TLS-RSA-WITH-DES-CBC-SHA", + MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, + MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, + MBEDTLS_CIPHERSUITE_WEAK }, +#endif /* MBEDTLS_SHA1_C */ +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* MBEDTLS_DES_C */ +#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */ + + { 0, "", + MBEDTLS_CIPHER_NONE, MBEDTLS_MD_NONE, MBEDTLS_KEY_EXCHANGE_NONE, + 0, 0, 0, 0, 0 } +}; + +#if defined(MBEDTLS_SSL_CIPHERSUITES) +const int *mbedtls_ssl_list_ciphersuites( void ) +{ + return( ciphersuite_preference ); +} +#else +#define MAX_CIPHERSUITES sizeof( ciphersuite_definitions ) / \ + sizeof( ciphersuite_definitions[0] ) +static int supported_ciphersuites[MAX_CIPHERSUITES]; +static int supported_init = 0; + +const int *mbedtls_ssl_list_ciphersuites( void ) +{ + /* + * On initial call filter out all ciphersuites not supported by current + * build based on presence in the ciphersuite_definitions. + */ + if( supported_init == 0 ) + { + const int *p; + int *q; + + for( p = ciphersuite_preference, q = supported_ciphersuites; + *p != 0 && q < supported_ciphersuites + MAX_CIPHERSUITES - 1; + p++ ) + { +#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES) + const mbedtls_ssl_ciphersuite_t *cs_info; + if( ( cs_info = mbedtls_ssl_ciphersuite_from_id( *p ) ) != NULL && + cs_info->cipher != MBEDTLS_CIPHER_ARC4_128 ) +#else + if( mbedtls_ssl_ciphersuite_from_id( *p ) != NULL ) +#endif + *(q++) = *p; + } + *q = 0; + + supported_init = 1; + } + + return( supported_ciphersuites ); +} +#endif /* MBEDTLS_SSL_CIPHERSUITES */ + +const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string( + const char *ciphersuite_name ) +{ + const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions; + + if( NULL == ciphersuite_name ) + return( NULL ); + + while( cur->id != 0 ) + { + if( 0 == strcmp( cur->name, ciphersuite_name ) ) + return( cur ); + + cur++; + } + + return( NULL ); +} + +const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id( int ciphersuite ) +{ + const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions; + + while( cur->id != 0 ) + { + if( cur->id == ciphersuite ) + return( cur ); + + cur++; + } + + return( NULL ); +} + +const char *mbedtls_ssl_get_ciphersuite_name( const int ciphersuite_id ) +{ + const mbedtls_ssl_ciphersuite_t *cur; + + cur = mbedtls_ssl_ciphersuite_from_id( ciphersuite_id ); + + if( cur == NULL ) + return( "unknown" ); + + return( cur->name ); +} + +int mbedtls_ssl_get_ciphersuite_id( const char *ciphersuite_name ) +{ + const mbedtls_ssl_ciphersuite_t *cur; + + cur = mbedtls_ssl_ciphersuite_from_string( ciphersuite_name ); + + if( cur == NULL ) + return( 0 ); + + return( cur->id ); +} + +#if defined(MBEDTLS_PK_C) +mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg( const mbedtls_ssl_ciphersuite_t *info ) +{ + switch( info->key_exchange ) + { + case MBEDTLS_KEY_EXCHANGE_RSA: + case MBEDTLS_KEY_EXCHANGE_DHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_RSA_PSK: + return( MBEDTLS_PK_RSA ); + + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + return( MBEDTLS_PK_ECDSA ); + + case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: + return( MBEDTLS_PK_ECKEY ); + + default: + return( MBEDTLS_PK_NONE ); + } +} +#endif /* MBEDTLS_PK_C */ + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) +int mbedtls_ssl_ciphersuite_uses_ec( const mbedtls_ssl_ciphersuite_t *info ) +{ + switch( info->key_exchange ) + { + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: + case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: + return( 1 ); + + default: + return( 0 ); + } +} +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) +int mbedtls_ssl_ciphersuite_uses_psk( const mbedtls_ssl_ciphersuite_t *info ) +{ + switch( info->key_exchange ) + { + case MBEDTLS_KEY_EXCHANGE_PSK: + case MBEDTLS_KEY_EXCHANGE_RSA_PSK: + case MBEDTLS_KEY_EXCHANGE_DHE_PSK: + case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: + return( 1 ); + + default: + return( 0 ); + } +} +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#endif /* MBEDTLS_SSL_TLS_C */ diff --git a/mbedtls/ssl_cli.c b/mbedtls/ssl_cli.c new file mode 100644 index 0000000..223823b --- /dev/null +++ b/mbedtls/ssl_cli.c @@ -0,0 +1,3405 @@ +/* + * SSLv3/TLSv1 client-side functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SSL_CLI_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include "mbedtls/debug.h" +#include "mbedtls/ssl.h" +#include "mbedtls/ssl_internal.h" + +#include + +#include + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} +#endif + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +static void ssl_write_hostname_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + size_t hostname_len; + + *olen = 0; + + if( ssl->hostname == NULL ) + return; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding server name extension: %s", + ssl->hostname ) ); + + hostname_len = strlen( ssl->hostname ); + + if( end < p || (size_t)( end - p ) < hostname_len + 9 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + /* + * struct { + * NameType name_type; + * select (name_type) { + * case host_name: HostName; + * } name; + * } ServerName; + * + * enum { + * host_name(0), (255) + * } NameType; + * + * opaque HostName<1..2^16-1>; + * + * struct { + * ServerName server_name_list<1..2^16-1> + * } ServerNameList; + */ + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME ) & 0xFF ); + + *p++ = (unsigned char)( ( (hostname_len + 5) >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( (hostname_len + 5) ) & 0xFF ); + + *p++ = (unsigned char)( ( (hostname_len + 3) >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( (hostname_len + 3) ) & 0xFF ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME ) & 0xFF ); + *p++ = (unsigned char)( ( hostname_len >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( hostname_len ) & 0xFF ); + + memcpy( p, ssl->hostname, hostname_len ); + + *olen = hostname_len + 9; +} +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + + *olen = 0; + + if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + return; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding renegotiation extension" ) ); + + if( end < p || (size_t)( end - p ) < 5 + ssl->verify_data_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + /* + * Secure renegotiation + */ + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO ) & 0xFF ); + + *p++ = 0x00; + *p++ = ( ssl->verify_data_len + 1 ) & 0xFF; + *p++ = ssl->verify_data_len & 0xFF; + + memcpy( p, ssl->own_verify_data, ssl->verify_data_len ); + + *olen = 5 + ssl->verify_data_len; +} +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/* + * Only if we handle at least one key exchange that needs signatures. + */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ + defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +static void ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + size_t sig_alg_len = 0; + const int *md; +#if defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) + unsigned char *sig_alg_list = buf + 6; +#endif + + *olen = 0; + + if( ssl->conf->max_minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) + return; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding signature_algorithms extension" ) ); + + for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ ) + { +#if defined(MBEDTLS_ECDSA_C) + sig_alg_len += 2; +#endif +#if defined(MBEDTLS_RSA_C) + sig_alg_len += 2; +#endif + } + + if( end < p || (size_t)( end - p ) < sig_alg_len + 6 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + /* + * Prepare signature_algorithms extension (TLS 1.2) + */ + sig_alg_len = 0; + + for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ ) + { +#if defined(MBEDTLS_ECDSA_C) + sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md ); + sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_ECDSA; +#endif +#if defined(MBEDTLS_RSA_C) + sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md ); + sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_RSA; +#endif + } + + /* + * enum { + * none(0), md5(1), sha1(2), sha224(3), sha256(4), sha384(5), + * sha512(6), (255) + * } HashAlgorithm; + * + * enum { anonymous(0), rsa(1), dsa(2), ecdsa(3), (255) } + * SignatureAlgorithm; + * + * struct { + * HashAlgorithm hash; + * SignatureAlgorithm signature; + * } SignatureAndHashAlgorithm; + * + * SignatureAndHashAlgorithm + * supported_signature_algorithms<2..2^16-2>; + */ + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG ) & 0xFF ); + + *p++ = (unsigned char)( ( ( sig_alg_len + 2 ) >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( ( sig_alg_len + 2 ) ) & 0xFF ); + + *p++ = (unsigned char)( ( sig_alg_len >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( sig_alg_len ) & 0xFF ); + + *olen = 6 + sig_alg_len; +} +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && + MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static void ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + unsigned char *elliptic_curve_list = p + 6; + size_t elliptic_curve_len = 0; + const mbedtls_ecp_curve_info *info; +#if defined(MBEDTLS_ECP_C) + const mbedtls_ecp_group_id *grp_id; +#else + ((void) ssl); +#endif + + *olen = 0; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_elliptic_curves extension" ) ); + +#if defined(MBEDTLS_ECP_C) + for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ ) + { + info = mbedtls_ecp_curve_info_from_grp_id( *grp_id ); +#else + for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ ) + { +#endif + if( info == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid curve in ssl configuration" ) ); + return; + } + + elliptic_curve_len += 2; + } + + if( end < p || (size_t)( end - p ) < 6 + elliptic_curve_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + elliptic_curve_len = 0; + +#if defined(MBEDTLS_ECP_C) + for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ ) + { + info = mbedtls_ecp_curve_info_from_grp_id( *grp_id ); +#else + for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ ) + { +#endif + elliptic_curve_list[elliptic_curve_len++] = info->tls_id >> 8; + elliptic_curve_list[elliptic_curve_len++] = info->tls_id & 0xFF; + } + + if( elliptic_curve_len == 0 ) + return; + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES ) & 0xFF ); + + *p++ = (unsigned char)( ( ( elliptic_curve_len + 2 ) >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( ( elliptic_curve_len + 2 ) ) & 0xFF ); + + *p++ = (unsigned char)( ( ( elliptic_curve_len ) >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( ( elliptic_curve_len ) ) & 0xFF ); + + *olen = 6 + elliptic_curve_len; +} + +static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + + *olen = 0; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_point_formats extension" ) ); + + if( end < p || (size_t)( end - p ) < 6 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS ) & 0xFF ); + + *p++ = 0x00; + *p++ = 2; + + *p++ = 1; + *p++ = MBEDTLS_ECP_PF_UNCOMPRESSED; + + *olen = 6; +} +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || + MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + int ret; + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + size_t kkpp_len; + + *olen = 0; + + /* Skip costly extension if we can't use EC J-PAKE anyway */ + if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 ) + return; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding ecjpake_kkpp extension" ) ); + + if( end - p < 4 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP ) & 0xFF ); + + /* + * We may need to send ClientHello multiple times for Hello verification. + * We don't want to compute fresh values every time (both for performance + * and consistency reasons), so cache the extension content. + */ + if( ssl->handshake->ecjpake_cache == NULL || + ssl->handshake->ecjpake_cache_len == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "generating new ecjpake parameters" ) ); + + ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx, + p + 2, end - p - 2, &kkpp_len, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret ); + return; + } + + ssl->handshake->ecjpake_cache = mbedtls_calloc( 1, kkpp_len ); + if( ssl->handshake->ecjpake_cache == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "allocation failed" ) ); + return; + } + + memcpy( ssl->handshake->ecjpake_cache, p + 2, kkpp_len ); + ssl->handshake->ecjpake_cache_len = kkpp_len; + } + else + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "re-using cached ecjpake parameters" ) ); + + kkpp_len = ssl->handshake->ecjpake_cache_len; + + if( (size_t)( end - p - 2 ) < kkpp_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + memcpy( p + 2, ssl->handshake->ecjpake_cache, kkpp_len ); + } + + *p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( kkpp_len ) & 0xFF ); + + *olen = kkpp_len + 4; +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + + *olen = 0; + + if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ) { + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding max_fragment_length extension" ) ); + + if( end < p || (size_t)( end - p ) < 5 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH ) & 0xFF ); + + *p++ = 0x00; + *p++ = 1; + + *p++ = ssl->conf->mfl_code; + + *olen = 5; +} +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + + *olen = 0; + + if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED ) + { + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding truncated_hmac extension" ) ); + + if( end < p || (size_t)( end - p ) < 4 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF ); + + *p++ = 0x00; + *p++ = 0x00; + + *olen = 4; +} +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + + *olen = 0; + + if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED || + ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding encrypt_then_mac " + "extension" ) ); + + if( end < p || (size_t)( end - p ) < 4 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC ) & 0xFF ); + + *p++ = 0x00; + *p++ = 0x00; + + *olen = 4; +} +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + + *olen = 0; + + if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED || + ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding extended_master_secret " + "extension" ) ); + + if( end < p || (size_t)( end - p ) < 4 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET ) & 0xFF ); + + *p++ = 0x00; + *p++ = 0x00; + + *olen = 4; +} +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + size_t tlen = ssl->session_negotiate->ticket_len; + + *olen = 0; + + if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED ) + { + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding session ticket extension" ) ); + + if( end < p || (size_t)( end - p ) < 4 + tlen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET ) & 0xFF ); + + *p++ = (unsigned char)( ( tlen >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( tlen ) & 0xFF ); + + *olen = 4; + + if( ssl->session_negotiate->ticket == NULL || tlen == 0 ) + { + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "sending session ticket of length %d", tlen ) ); + + memcpy( p, ssl->session_negotiate->ticket, tlen ); + + *olen += tlen; +} +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_SSL_ALPN) +static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, size_t *olen ) +{ + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + size_t alpnlen = 0; + const char **cur; + + *olen = 0; + + if( ssl->conf->alpn_list == NULL ) + { + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding alpn extension" ) ); + + for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ ) + alpnlen += (unsigned char)( strlen( *cur ) & 0xFF ) + 1; + + if( end < p || (size_t)( end - p ) < 6 + alpnlen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN ) & 0xFF ); + + /* + * opaque ProtocolName<1..2^8-1>; + * + * struct { + * ProtocolName protocol_name_list<2..2^16-1> + * } ProtocolNameList; + */ + + /* Skip writing extension and list length for now */ + p += 4; + + for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ ) + { + *p = (unsigned char)( strlen( *cur ) & 0xFF ); + memcpy( p + 1, *cur, *p ); + p += 1 + *p; + } + + *olen = p - buf; + + /* List length = olen - 2 (ext_type) - 2 (ext_len) - 2 (list_len) */ + buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF ); + buf[5] = (unsigned char)( ( ( *olen - 6 ) ) & 0xFF ); + + /* Extension length = olen - 2 (ext_type) - 2 (ext_len) */ + buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF ); + buf[3] = (unsigned char)( ( ( *olen - 4 ) ) & 0xFF ); +} +#endif /* MBEDTLS_SSL_ALPN */ + +/* + * Generate random bytes for ClientHello + */ +static int ssl_generate_random( mbedtls_ssl_context *ssl ) +{ + int ret; + unsigned char *p = ssl->handshake->randbytes; +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t t; +#endif + + /* + * When responding to a verify request, MUST reuse random (RFC 6347 4.2.1) + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake->verify_cookie != NULL ) + { + return( 0 ); + } +#endif + +#if defined(MBEDTLS_HAVE_TIME) + t = mbedtls_time( NULL ); + *p++ = (unsigned char)( t >> 24 ); + *p++ = (unsigned char)( t >> 16 ); + *p++ = (unsigned char)( t >> 8 ); + *p++ = (unsigned char)( t ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, current time: %lu", t ) ); +#else + if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 ) + return( ret ); + + p += 4; +#endif /* MBEDTLS_HAVE_TIME */ + + if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +static int ssl_write_client_hello( mbedtls_ssl_context *ssl ) +{ + int ret; + size_t i, n, olen, ext_len = 0; + unsigned char *buf; + unsigned char *p, *q; + unsigned char offer_compress; + const int *ciphersuites; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client hello" ) ); + + if( ssl->conf->f_rng == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") ); + return( MBEDTLS_ERR_SSL_NO_RNG ); + } + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) +#endif + { + ssl->major_ver = ssl->conf->min_major_ver; + ssl->minor_ver = ssl->conf->min_minor_ver; + } + + if( ssl->conf->max_major_ver == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "configured max major version is invalid, " + "consider using mbedtls_ssl_config_defaults()" ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + /* + * 0 . 0 handshake type + * 1 . 3 handshake length + * 4 . 5 highest version supported + * 6 . 9 current UNIX time + * 10 . 37 random bytes + */ + buf = ssl->out_msg; + p = buf + 4; + + mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver, + ssl->conf->transport, p ); + p += 2; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, max version: [%d:%d]", + buf[4], buf[5] ) ); + + if( ( ret = ssl_generate_random( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_generate_random", ret ); + return( ret ); + } + + memcpy( p, ssl->handshake->randbytes, 32 ); + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", p, 32 ); + p += 32; + + /* + * 38 . 38 session id length + * 39 . 39+n session id + * 39+n . 39+n DTLS only: cookie length (1 byte) + * 40+n . .. DTSL only: cookie + * .. . .. ciphersuitelist length (2 bytes) + * .. . .. ciphersuitelist + * .. . .. compression methods length (1 byte) + * .. . .. compression methods + * .. . .. extensions length (2 bytes) + * .. . .. extensions + */ + n = ssl->session_negotiate->id_len; + + if( n < 16 || n > 32 || +#if defined(MBEDTLS_SSL_RENEGOTIATION) + ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE || +#endif + ssl->handshake->resume == 0 ) + { + n = 0; + } + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + /* + * RFC 5077 section 3.4: "When presenting a ticket, the client MAY + * generate and include a Session ID in the TLS ClientHello." + */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) +#endif + { + if( ssl->session_negotiate->ticket != NULL && + ssl->session_negotiate->ticket_len != 0 ) + { + ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id, 32 ); + + if( ret != 0 ) + return( ret ); + + ssl->session_negotiate->id_len = n = 32; + } + } +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + + *p++ = (unsigned char) n; + + for( i = 0; i < n; i++ ) + *p++ = ssl->session_negotiate->id[i]; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, session id len.: %d", n ) ); + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 39, n ); + + /* + * DTLS cookie + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + if( ssl->handshake->verify_cookie == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "no verify cookie to send" ) ); + *p++ = 0; + } + else + { + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie", + ssl->handshake->verify_cookie, + ssl->handshake->verify_cookie_len ); + + *p++ = ssl->handshake->verify_cookie_len; + memcpy( p, ssl->handshake->verify_cookie, + ssl->handshake->verify_cookie_len ); + p += ssl->handshake->verify_cookie_len; + } + } +#endif + + /* + * Ciphersuite list + */ + ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver]; + + /* Skip writing ciphersuite length for now */ + n = 0; + q = p; + p += 2; + + for( i = 0; ciphersuites[i] != 0; i++ ) + { + ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( ciphersuites[i] ); + + if( ciphersuite_info == NULL ) + continue; + + if( ciphersuite_info->min_minor_ver > ssl->conf->max_minor_ver || + ciphersuite_info->max_minor_ver < ssl->conf->min_minor_ver ) + continue; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ( ciphersuite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) ) + continue; +#endif + +#if defined(MBEDTLS_ARC4_C) + if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED && + ciphersuite_info->cipher == MBEDTLS_CIPHER_ARC4_128 ) + continue; +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE && + mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 ) + continue; +#endif + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, add ciphersuite: %04x", + ciphersuites[i] ) ); + + n++; + *p++ = (unsigned char)( ciphersuites[i] >> 8 ); + *p++ = (unsigned char)( ciphersuites[i] ); + } + + /* + * Add TLS_EMPTY_RENEGOTIATION_INFO_SCSV + */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) +#endif + { + *p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO >> 8 ); + *p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO ); + n++; + } + + /* Some versions of OpenSSL don't handle it correctly if not at end */ +#if defined(MBEDTLS_SSL_FALLBACK_SCSV) + if( ssl->conf->fallback == MBEDTLS_SSL_IS_FALLBACK ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding FALLBACK_SCSV" ) ); + *p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ); + *p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ); + n++; + } +#endif + + *q++ = (unsigned char)( n >> 7 ); + *q++ = (unsigned char)( n << 1 ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, got %d ciphersuites", n ) ); + +#if defined(MBEDTLS_ZLIB_SUPPORT) + offer_compress = 1; +#else + offer_compress = 0; +#endif + + /* + * We don't support compression with DTLS right now: is many records come + * in the same datagram, uncompressing one could overwrite the next one. + * We don't want to add complexity for handling that case unless there is + * an actual need for it. + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + offer_compress = 0; +#endif + + if( offer_compress ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 2 ) ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d %d", + MBEDTLS_SSL_COMPRESS_DEFLATE, MBEDTLS_SSL_COMPRESS_NULL ) ); + + *p++ = 2; + *p++ = MBEDTLS_SSL_COMPRESS_DEFLATE; + *p++ = MBEDTLS_SSL_COMPRESS_NULL; + } + else + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 1 ) ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d", + MBEDTLS_SSL_COMPRESS_NULL ) ); + + *p++ = 1; + *p++ = MBEDTLS_SSL_COMPRESS_NULL; + } + + // First write extensions, then the total length + // +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + ssl_write_hostname_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ + defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) + ssl_write_signature_algorithms_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + ssl_write_supported_elliptic_curves_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; + + ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_ALPN) + ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + + /* olen unused if all extensions are disabled */ + ((void) olen); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, total extension length: %d", + ext_len ) ); + + if( ext_len > 0 ) + { + *p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( ext_len ) & 0xFF ); + p += ext_len; + } + + ssl->out_msglen = p - buf; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_CLIENT_HELLO; + + ssl->state++; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + mbedtls_ssl_send_flight_completed( ssl ); +#endif + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client hello" ) ); + + return( 0 ); +} + +static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + int ret; + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) + { + /* Check verify-data in constant-time. The length OTOH is no secret */ + if( len != 1 + ssl->verify_data_len * 2 || + buf[0] != ssl->verify_data_len * 2 || + mbedtls_ssl_safer_memcmp( buf + 1, + ssl->own_verify_data, ssl->verify_data_len ) != 0 || + mbedtls_ssl_safer_memcmp( buf + 1 + ssl->verify_data_len, + ssl->peer_verify_data, ssl->verify_data_len ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + } + else +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + { + if( len != 1 || buf[0] != 0x00 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; + } + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + /* + * server should use the extension only if we did, + * and if so the server's value should match ours (and len is always 1) + */ + if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE || + len != 1 || + buf[0] != ssl->conf->mfl_code ) + { + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + return( 0 ); +} +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED || + len != 0 ) + { + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + ((void) buf); + + ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED || + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || + len != 0 ) + { + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + ((void) buf); + + ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED || + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || + len != 0 ) + { + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + ((void) buf); + + ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED || + len != 0 ) + { + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + ((void) buf); + + ssl->handshake->new_session_ticket = 1; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + size_t list_size; + const unsigned char *p; + + list_size = buf[0]; + if( list_size + 1 != len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + p = buf + 1; + while( list_size > 0 ) + { + if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED || + p[0] == MBEDTLS_ECP_PF_COMPRESSED ) + { +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) + ssl->handshake->ecdh_ctx.point_format = p[0]; +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + ssl->handshake->ecjpake_ctx.point_format = p[0]; +#endif + MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) ); + return( 0 ); + } + + list_size--; + p++; + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "no point format in common" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); +} +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || + MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + int ret; + + if( ssl->transform_negotiate->ciphersuite_info->key_exchange != + MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) ); + return( 0 ); + } + + /* If we got here, we no longer need our cached extension */ + mbedtls_free( ssl->handshake->ecjpake_cache ); + ssl->handshake->ecjpake_cache = NULL; + ssl->handshake->ecjpake_cache_len = 0; + + if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx, + buf, len ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret ); + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_ALPN) +static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ + size_t list_len, name_len; + const char **p; + + /* If we didn't send it, the server shouldn't send it */ + if( ssl->conf->alpn_list == NULL ) + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + + /* + * opaque ProtocolName<1..2^8-1>; + * + * struct { + * ProtocolName protocol_name_list<2..2^16-1> + * } ProtocolNameList; + * + * the "ProtocolNameList" MUST contain exactly one "ProtocolName" + */ + + /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */ + if( len < 4 ) + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + + list_len = ( buf[0] << 8 ) | buf[1]; + if( list_len != len - 2 ) + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + + name_len = buf[2]; + if( name_len != list_len - 1 ) + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + + /* Check that the server chosen protocol was in our list and save it */ + for( p = ssl->conf->alpn_list; *p != NULL; p++ ) + { + if( name_len == strlen( *p ) && + memcmp( buf + 3, *p, name_len ) == 0 ) + { + ssl->alpn_chosen = *p; + return( 0 ); + } + } + + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); +} +#endif /* MBEDTLS_SSL_ALPN */ + +/* + * Parse HelloVerifyRequest. Only called after verifying the HS type. + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) +static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl ) +{ + const unsigned char *p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); + int major_ver, minor_ver; + unsigned char cookie_len; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse hello verify request" ) ); + + /* + * struct { + * ProtocolVersion server_version; + * opaque cookie<0..2^8-1>; + * } HelloVerifyRequest; + */ + MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 ); + mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, p ); + p += 2; + + /* + * Since the RFC is not clear on this point, accept DTLS 1.0 (TLS 1.1) + * even is lower than our min version. + */ + if( major_ver < MBEDTLS_SSL_MAJOR_VERSION_3 || + minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 || + major_ver > ssl->conf->max_major_ver || + minor_ver > ssl->conf->max_minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server version" ) ); + + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); + + return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); + } + + cookie_len = *p++; + MBEDTLS_SSL_DEBUG_BUF( 3, "cookie", p, cookie_len ); + + if( ( ssl->in_msg + ssl->in_msglen ) - p < cookie_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, + ( "cookie length does not match incoming message size" ) ); + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + mbedtls_free( ssl->handshake->verify_cookie ); + + ssl->handshake->verify_cookie = mbedtls_calloc( 1, cookie_len ); + if( ssl->handshake->verify_cookie == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc failed (%d bytes)", cookie_len ) ); + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + memcpy( ssl->handshake->verify_cookie, p, cookie_len ); + ssl->handshake->verify_cookie_len = cookie_len; + + /* Start over at ClientHello */ + ssl->state = MBEDTLS_SSL_CLIENT_HELLO; + mbedtls_ssl_reset_checksum( ssl ); + + mbedtls_ssl_recv_flight_completed( ssl ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse hello verify request" ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) +{ + int ret, i; + size_t n; + size_t ext_len; + unsigned char *buf, *ext; + unsigned char comp; +#if defined(MBEDTLS_ZLIB_SUPPORT) + int accept_comp; +#endif +#if defined(MBEDTLS_SSL_RENEGOTIATION) + int renegotiation_info_seen = 0; +#endif + int handshake_failure = 0; + const mbedtls_ssl_ciphersuite_t *suite_info; +#if defined(MBEDTLS_DEBUG_C) + uint32_t t; +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello" ) ); + + buf = ssl->in_msg; + + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + { + ssl->renego_records_seen++; + + if( ssl->conf->renego_max_records >= 0 && + ssl->renego_records_seen > ssl->conf->renego_max_records ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, " + "but not honored by server" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-handshake message during renego" ) ); + return( MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO ); + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + if( buf[0] == MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "received hello verify request" ) ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) ); + return( ssl_parse_hello_verify_request( ssl ) ); + } + else + { + /* We made it through the verification process */ + mbedtls_free( ssl->handshake->verify_cookie ); + ssl->handshake->verify_cookie = NULL; + ssl->handshake->verify_cookie_len = 0; + } + } +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + if( ssl->in_hslen < 38 + mbedtls_ssl_hs_hdr_len( ssl ) || + buf[0] != MBEDTLS_SSL_HS_SERVER_HELLO ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + /* + * 0 . 1 server_version + * 2 . 33 random (maybe including 4 bytes of Unix time) + * 34 . 34 session_id length = n + * 35 . 34+n session_id + * 35+n . 36+n cipher_suite + * 37+n . 37+n compression_method + * + * 38+n . 39+n extensions length (optional) + * 40+n . .. extensions + */ + buf += mbedtls_ssl_hs_hdr_len( ssl ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, version", buf + 0, 2 ); + mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver, + ssl->conf->transport, buf + 0 ); + + if( ssl->major_ver < ssl->conf->min_major_ver || + ssl->minor_ver < ssl->conf->min_minor_ver || + ssl->major_ver > ssl->conf->max_major_ver || + ssl->minor_ver > ssl->conf->max_minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "server version out of bounds - " + " min: [%d:%d], server: [%d:%d], max: [%d:%d]", + ssl->conf->min_major_ver, ssl->conf->min_minor_ver, + ssl->major_ver, ssl->minor_ver, + ssl->conf->max_major_ver, ssl->conf->max_minor_ver ) ); + + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); + + return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); + } + +#if defined(MBEDTLS_DEBUG_C) + t = ( (uint32_t) buf[2] << 24 ) + | ( (uint32_t) buf[3] << 16 ) + | ( (uint32_t) buf[4] << 8 ) + | ( (uint32_t) buf[5] ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) ); +#endif + + memcpy( ssl->handshake->randbytes + 32, buf + 2, 32 ); + + n = buf[34]; + + MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 2, 32 ); + + if( n > 32 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + if( ssl->in_hslen > mbedtls_ssl_hs_hdr_len( ssl ) + 39 + n ) + { + ext_len = ( ( buf[38 + n] << 8 ) + | ( buf[39 + n] ) ); + + if( ( ext_len > 0 && ext_len < 4 ) || + ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 40 + n + ext_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + } + else if( ssl->in_hslen == mbedtls_ssl_hs_hdr_len( ssl ) + 38 + n ) + { + ext_len = 0; + } + else + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + /* ciphersuite (used later) */ + i = ( buf[35 + n] << 8 ) | buf[36 + n]; + + /* + * Read and check compression + */ + comp = buf[37 + n]; + +#if defined(MBEDTLS_ZLIB_SUPPORT) + /* See comments in ssl_write_client_hello() */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + accept_comp = 0; + else +#endif + accept_comp = 1; + + if( comp != MBEDTLS_SSL_COMPRESS_NULL && + ( comp != MBEDTLS_SSL_COMPRESS_DEFLATE || accept_comp == 0 ) ) +#else /* MBEDTLS_ZLIB_SUPPORT */ + if( comp != MBEDTLS_SSL_COMPRESS_NULL ) +#endif/* MBEDTLS_ZLIB_SUPPORT */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "server hello, bad compression: %d", comp ) ); + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } + + /* + * Initialize update checksum functions + */ + ssl->transform_negotiate->ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( i ); + + if( ssl->transform_negotiate->ciphersuite_info == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "ciphersuite info for %04x not found", i ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + mbedtls_ssl_optimize_checksum( ssl, ssl->transform_negotiate->ciphersuite_info ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) ); + MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, session id", buf + 35, n ); + + /* + * Check if the session can be resumed + */ + if( ssl->handshake->resume == 0 || n == 0 || +#if defined(MBEDTLS_SSL_RENEGOTIATION) + ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE || +#endif + ssl->session_negotiate->ciphersuite != i || + ssl->session_negotiate->compression != comp || + ssl->session_negotiate->id_len != n || + memcmp( ssl->session_negotiate->id, buf + 35, n ) != 0 ) + { + ssl->state++; + ssl->handshake->resume = 0; +#if defined(MBEDTLS_HAVE_TIME) + ssl->session_negotiate->start = mbedtls_time( NULL ); +#endif + ssl->session_negotiate->ciphersuite = i; + ssl->session_negotiate->compression = comp; + ssl->session_negotiate->id_len = n; + memcpy( ssl->session_negotiate->id, buf + 35, n ); + } + else + { + ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC; + + if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); + return( ret ); + } + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed", + ssl->handshake->resume ? "a" : "no" ) ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %04x", i ) ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d", buf[37 + n] ) ); + + suite_info = mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite ); + if( suite_info == NULL +#if defined(MBEDTLS_ARC4_C) + || ( ssl->conf->arc4_disabled && + suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 ) +#endif + ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s", suite_info->name ) ); + + i = 0; + while( 1 ) + { + if( ssl->conf->ciphersuite_list[ssl->minor_ver][i] == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + if( ssl->conf->ciphersuite_list[ssl->minor_ver][i++] == + ssl->session_negotiate->ciphersuite ) + { + break; + } + } + + if( comp != MBEDTLS_SSL_COMPRESS_NULL +#if defined(MBEDTLS_ZLIB_SUPPORT) + && comp != MBEDTLS_SSL_COMPRESS_DEFLATE +#endif + ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + ssl->session_negotiate->compression = comp; + + ext = buf + 40 + n; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "server hello, total extension length: %d", ext_len ) ); + + while( ext_len ) + { + unsigned int ext_id = ( ( ext[0] << 8 ) + | ( ext[1] ) ); + unsigned int ext_size = ( ( ext[2] << 8 ) + | ( ext[3] ) ); + + if( ext_size + 4 > ext_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + switch( ext_id ) + { + case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) ); +#if defined(MBEDTLS_SSL_RENEGOTIATION) + renegotiation_info_seen = 1; +#endif + + if( ( ret = ssl_parse_renegotiation_info( ssl, ext + 4, + ext_size ) ) != 0 ) + return( ret ); + + break; + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max_fragment_length extension" ) ); + + if( ( ret = ssl_parse_max_fragment_length_ext( ssl, + ext + 4, ext_size ) ) != 0 ) + { + return( ret ); + } + + break; +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + case MBEDTLS_TLS_EXT_TRUNCATED_HMAC: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated_hmac extension" ) ); + + if( ( ret = ssl_parse_truncated_hmac_ext( ssl, + ext + 4, ext_size ) ) != 0 ) + { + return( ret ); + } + + break; +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt_then_mac extension" ) ); + + if( ( ret = ssl_parse_encrypt_then_mac_ext( ssl, + ext + 4, ext_size ) ) != 0 ) + { + return( ret ); + } + + break; +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended_master_secret extension" ) ); + + if( ( ret = ssl_parse_extended_ms_ext( ssl, + ext + 4, ext_size ) ) != 0 ) + { + return( ret ); + } + + break; +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + case MBEDTLS_TLS_EXT_SESSION_TICKET: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session_ticket extension" ) ); + + if( ( ret = ssl_parse_session_ticket_ext( ssl, + ext + 4, ext_size ) ) != 0 ) + { + return( ret ); + } + + break; +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported_point_formats extension" ) ); + + if( ( ret = ssl_parse_supported_point_formats_ext( ssl, + ext + 4, ext_size ) ) != 0 ) + { + return( ret ); + } + + break; +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || + MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + case MBEDTLS_TLS_EXT_ECJPAKE_KKPP: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake_kkpp extension" ) ); + + if( ( ret = ssl_parse_ecjpake_kkpp( ssl, + ext + 4, ext_size ) ) != 0 ) + { + return( ret ); + } + + break; +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_ALPN) + case MBEDTLS_TLS_EXT_ALPN: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) ); + + if( ( ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size ) ) != 0 ) + return( ret ); + + break; +#endif /* MBEDTLS_SSL_ALPN */ + + default: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)", + ext_id ) ); + } + + ext_len -= 4 + ext_size; + ext += 4 + ext_size; + + if( ext_len > 0 && ext_len < 4 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + } + + /* + * Renegotiation security checks + */ + if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && + ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) ); + handshake_failure = 1; + } +#if defined(MBEDTLS_SSL_RENEGOTIATION) + else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && + ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION && + renegotiation_info_seen == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) ); + handshake_failure = 1; + } + else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && + ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && + ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) ); + handshake_failure = 1; + } + else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && + ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && + renegotiation_info_seen == 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) ); + handshake_failure = 1; + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + if( handshake_failure == 1 ) + { + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) ); + + return( 0 ); +} + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) +static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl, unsigned char **p, + unsigned char *end ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + + /* + * Ephemeral DH parameters: + * + * struct { + * opaque dh_p<1..2^16-1>; + * opaque dh_g<1..2^16-1>; + * opaque dh_Ys<1..2^16-1>; + * } ServerDHParams; + */ + if( ( ret = mbedtls_dhm_read_params( &ssl->handshake->dhm_ctx, p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 2, ( "mbedtls_dhm_read_params" ), ret ); + return( ret ); + } + + if( ssl->handshake->dhm_ctx.len * 8 < ssl->conf->dhm_min_bitlen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "DHM prime too short: %d < %d", + ssl->handshake->dhm_ctx.len * 8, + ssl->conf->dhm_min_bitlen ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P ); + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G ); + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY ); + + return( ret ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) +{ + const mbedtls_ecp_curve_info *curve_info; + + curve_info = mbedtls_ecp_curve_info_from_grp_id( ssl->handshake->ecdh_ctx.grp.id ); + if( curve_info == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", curve_info->name ) ); + +#if defined(MBEDTLS_ECP_C) + if( mbedtls_ssl_check_curve( ssl, ssl->handshake->ecdh_ctx.grp.id ) != 0 ) +#else + if( ssl->handshake->ecdh_ctx.grp.nbits < 163 || + ssl->handshake->ecdh_ctx.grp.nbits > 521 ) +#endif + return( -1 ); + + MBEDTLS_SSL_DEBUG_ECP( 3, "ECDH: Qp", &ssl->handshake->ecdh_ctx.Qp ); + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl, + unsigned char **p, + unsigned char *end ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + + /* + * Ephemeral ECDH parameters: + * + * struct { + * ECParameters curve_params; + * ECPoint public; + * } ServerECDHParams; + */ + if( ( ret = mbedtls_ecdh_read_params( &ssl->handshake->ecdh_ctx, + (const unsigned char **) p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_read_params" ), ret ); + return( ret ); + } + + if( ssl_check_server_ecdh_params( ssl ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message (ECDHE curve)" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + return( ret ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) +static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl, + unsigned char **p, + unsigned char *end ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + size_t len; + ((void) ssl); + + /* + * PSK parameters: + * + * opaque psk_identity_hint<0..2^16-1>; + */ + len = (*p)[0] << 8 | (*p)[1]; + *p += 2; + + if( (*p) + len > end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message (psk_identity_hint length)" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + /* + * Note: we currently ignore the PKS identity hint, as we only allow one + * PSK to be provisionned on the client. This could be changed later if + * someone needs that feature. + */ + *p += len; + ret = 0; + + return( ret ); +} +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) +/* + * Generate a pre-master secret and encrypt it with the server's RSA key + */ +static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl, + size_t offset, size_t *olen, + size_t pms_offset ) +{ + int ret; + size_t len_bytes = ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ? 0 : 2; + unsigned char *p = ssl->handshake->premaster + pms_offset; + + if( offset + len_bytes > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small for encrypted pms" ) ); + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + } + + /* + * Generate (part of) the pre-master as + * struct { + * ProtocolVersion client_version; + * opaque random[46]; + * } PreMasterSecret; + */ + mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver, + ssl->conf->transport, p ); + + if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p + 2, 46 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "f_rng", ret ); + return( ret ); + } + + ssl->handshake->pmslen = 48; + + if( ssl->session_negotiate->peer_cert == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + /* + * Now write it out, encrypted + */ + if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk, + MBEDTLS_PK_RSA ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate key type mismatch" ) ); + return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); + } + + if( ( ret = mbedtls_pk_encrypt( &ssl->session_negotiate->peer_cert->pk, + p, ssl->handshake->pmslen, + ssl->out_msg + offset + len_bytes, olen, + MBEDTLS_SSL_MAX_CONTENT_LEN - offset - len_bytes, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_rsa_pkcs1_encrypt", ret ); + return( ret ); + } + +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( len_bytes == 2 ) + { + ssl->out_msg[offset+0] = (unsigned char)( *olen >> 8 ); + ssl->out_msg[offset+1] = (unsigned char)( *olen ); + *olen += 2; + } +#endif + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl, + unsigned char **p, + unsigned char *end, + mbedtls_md_type_t *md_alg, + mbedtls_pk_type_t *pk_alg ) +{ + ((void) ssl); + *md_alg = MBEDTLS_MD_NONE; + *pk_alg = MBEDTLS_PK_NONE; + + /* Only in TLS 1.2 */ + if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) + { + return( 0 ); + } + + if( (*p) + 2 > end ) + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + + /* + * Get hash algorithm + */ + if( ( *md_alg = mbedtls_ssl_md_alg_from_hash( (*p)[0] ) ) == MBEDTLS_MD_NONE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "Server used unsupported " + "HashAlgorithm %d", *(p)[0] ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + /* + * Get signature algorithm + */ + if( ( *pk_alg = mbedtls_ssl_pk_alg_from_sig( (*p)[1] ) ) == MBEDTLS_PK_NONE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used unsupported " + "SignatureAlgorithm %d", (*p)[1] ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + /* + * Check if the hash is acceptable + */ + if( mbedtls_ssl_check_sig_hash( ssl, *md_alg ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used HashAlgorithm " + "that was not offered" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used SignatureAlgorithm %d", (*p)[1] ) ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used HashAlgorithm %d", (*p)[0] ) ); + *p += 2; + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) +{ + int ret; + const mbedtls_ecp_keypair *peer_key; + + if( ssl->session_negotiate->peer_cert == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk, + MBEDTLS_PK_ECKEY ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) ); + return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); + } + + peer_key = mbedtls_pk_ec( ssl->session_negotiate->peer_cert->pk ); + + if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, peer_key, + MBEDTLS_ECDH_THEIRS ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret ); + return( ret ); + } + + if( ssl_check_server_ecdh_params( ssl ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server certificate (ECDH curve)" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + } + + return( ret ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ + +static int ssl_parse_server_key_exchange( mbedtls_ssl_context *ssl ) +{ + int ret; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + unsigned char *p, *end; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server key exchange" ) ); + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) ); + ssl->state++; + return( 0 ); + } + ((void) p); + ((void) end); +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA ) + { + if( ( ret = ssl_get_ecdh_params_from_cert( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) ); + ssl->state++; + return( 0 ); + } + ((void) p); + ((void) end); +#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ + + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + /* + * ServerKeyExchange may be skipped with PSK and RSA-PSK when the server + * doesn't use a psk_identity_hint + */ + if( ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE ) + { + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) + { + ssl->record_read = 1; + goto exit; + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); + end = ssl->in_msg + ssl->in_hslen; + MBEDTLS_SSL_DEBUG_BUF( 3, "server key exchange", p, end - p ); + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) + { + if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + } /* FALLTROUGH */ +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) + ; /* nothing more to do */ + else +#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED || + MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) + { + if( ssl_parse_server_dh_params( ssl, &p, end ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) + { + if( ssl_parse_server_ecdh_params( ssl, &p, end ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx, + p, end - p ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) + { + size_t sig_len, hashlen; + unsigned char hash[64]; + mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE; + mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE; + unsigned char *params = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); + size_t params_len = p - params; + + /* + * Handle the digitally-signed structure + */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + if( ssl_parse_signature_algorithm( ssl, &p, end, + &md_alg, &pk_alg ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + if( pk_alg != mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) + { + pk_alg = mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ); + + /* Default hash for ECDSA is SHA-1 */ + if( pk_alg == MBEDTLS_PK_ECDSA && md_alg == MBEDTLS_MD_NONE ) + md_alg = MBEDTLS_MD_SHA1; + } + else +#endif + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + /* + * Read signature + */ + sig_len = ( p[0] << 8 ) | p[1]; + p += 2; + + if( end != p + sig_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "signature", p, sig_len ); + + /* + * Compute the hash that has been signed + */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( md_alg == MBEDTLS_MD_NONE ) + { + mbedtls_md5_context mbedtls_md5; + mbedtls_sha1_context mbedtls_sha1; + + mbedtls_md5_init( &mbedtls_md5 ); + mbedtls_sha1_init( &mbedtls_sha1 ); + + hashlen = 36; + + /* + * digitally-signed struct { + * opaque md5_hash[16]; + * opaque sha_hash[20]; + * }; + * + * md5_hash + * MD5(ClientHello.random + ServerHello.random + * + ServerParams); + * sha_hash + * SHA(ClientHello.random + ServerHello.random + * + ServerParams); + */ + mbedtls_md5_starts( &mbedtls_md5 ); + mbedtls_md5_update( &mbedtls_md5, ssl->handshake->randbytes, 64 ); + mbedtls_md5_update( &mbedtls_md5, params, params_len ); + mbedtls_md5_finish( &mbedtls_md5, hash ); + + mbedtls_sha1_starts( &mbedtls_sha1 ); + mbedtls_sha1_update( &mbedtls_sha1, ssl->handshake->randbytes, 64 ); + mbedtls_sha1_update( &mbedtls_sha1, params, params_len ); + mbedtls_sha1_finish( &mbedtls_sha1, hash + 16 ); + + mbedtls_md5_free( &mbedtls_md5 ); + mbedtls_sha1_free( &mbedtls_sha1 ); + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ + MBEDTLS_SSL_PROTO_TLS1_1 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( md_alg != MBEDTLS_MD_NONE ) + { + mbedtls_md_context_t ctx; + + mbedtls_md_init( &ctx ); + + /* Info from md_alg will be used instead */ + hashlen = 0; + + /* + * digitally-signed struct { + * opaque client_random[32]; + * opaque server_random[32]; + * ServerDHParams params; + * }; + */ + if( ( ret = mbedtls_md_setup( &ctx, + mbedtls_md_info_from_type( md_alg ), 0 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret ); + return( ret ); + } + + mbedtls_md_starts( &ctx ); + mbedtls_md_update( &ctx, ssl->handshake->randbytes, 64 ); + mbedtls_md_update( &ctx, params, params_len ); + mbedtls_md_finish( &ctx, hash ); + mbedtls_md_free( &ctx ); + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ + MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen != 0 ? hashlen : + (unsigned int) ( mbedtls_md_get_size( mbedtls_md_info_from_type( md_alg ) ) ) ); + + if( ssl->session_negotiate->peer_cert == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + /* + * Verify signature + */ + if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk, pk_alg ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); + return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); + } + + if( ( ret = mbedtls_pk_verify( &ssl->session_negotiate->peer_cert->pk, + md_alg, hash, hashlen, p, sig_len ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret ); + return( ret ); + } + } +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ + +exit: + ssl->state++; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server key exchange" ) ); + + return( 0 ); +} + +#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl ) +{ + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) ); + ssl->state++; + return( 0 ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); +} +#else +static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl ) +{ + int ret; + unsigned char *buf; + size_t n = 0; + size_t cert_type_len = 0, dn_len = 0; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) ); + ssl->state++; + return( 0 ); + } + + if( ssl->record_read == 0 ) + { + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + ssl->record_read = 1; + } + + ssl->client_auth = 0; + ssl->state++; + + if( ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE_REQUEST ) + ssl->client_auth++; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "got %s certificate request", + ssl->client_auth ? "a" : "no" ) ); + + if( ssl->client_auth == 0 ) + goto exit; + + ssl->record_read = 0; + + /* + * struct { + * ClientCertificateType certificate_types<1..2^8-1>; + * SignatureAndHashAlgorithm + * supported_signature_algorithms<2^16-1>; -- TLS 1.2 only + * DistinguishedName certificate_authorities<0..2^16-1>; + * } CertificateRequest; + * + * Since we only support a single certificate on clients, let's just + * ignore all the information that's supposed to help us pick a + * certificate. + * + * We could check that our certificate matches the request, and bail out + * if it doesn't, but it's simpler to just send the certificate anyway, + * and give the server the opportunity to decide if it should terminate + * the connection when it doesn't like our certificate. + * + * Same goes for the hash in TLS 1.2's signature_algorithms: at this + * point we only have one hash available (see comments in + * write_certificate_verify), so let's just use what we have. + * + * However, we still minimally parse the message to check it is at least + * superficially sane. + */ + buf = ssl->in_msg; + + /* certificate_types */ + cert_type_len = buf[mbedtls_ssl_hs_hdr_len( ssl )]; + n = cert_type_len; + + if( ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST ); + } + + /* supported_signature_algorithms */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + size_t sig_alg_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] << 8 ) + | ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n] ) ); +#if defined(MBEDTLS_DEBUG_C) + unsigned char* sig_alg = buf + mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n; + size_t i; + + for( i = 0; i < sig_alg_len; i += 2 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "Supported Signature Algorithm found: %d,%d", sig_alg[i], sig_alg[i + 1] ) ); + } +#endif + + n += 2 + sig_alg_len; + + if( ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST ); + } + } +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + + /* certificate_authorities */ + dn_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] << 8 ) + | ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n] ) ); + + n += dn_len; + if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST ); + } + +exit: + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate request" ) ); + + return( 0 ); +} +#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ + +static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello done" ) ); + + if( ssl->record_read == 0 ) + { + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + } + ssl->record_read = 0; + + if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) || + ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_HELLO_DONE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE ); + } + + ssl->state++; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + mbedtls_ssl_recv_flight_completed( ssl ); +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello done" ) ); + + return( 0 ); +} + +static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl ) +{ + int ret; + size_t i, n; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client key exchange" ) ); + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA ) + { + /* + * DHM key exchange -- send G^X mod P + */ + n = ssl->handshake->dhm_ctx.len; + + ssl->out_msg[4] = (unsigned char)( n >> 8 ); + ssl->out_msg[5] = (unsigned char)( n ); + i = 6; + + ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx, + (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ), + &ssl->out_msg[i], n, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X ); + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX ); + + if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx, + ssl->handshake->premaster, + MBEDTLS_PREMASTER_SIZE, + &ssl->handshake->pmslen, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA ) + { + /* + * ECDH key exchange -- send client public value + */ + i = 4; + + ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx, + &n, + &ssl->out_msg[i], 1000, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_ECP( 3, "ECDH: Q", &ssl->handshake->ecdh_ctx.Q ); + + if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, + &ssl->handshake->pmslen, + ssl->handshake->premaster, + MBEDTLS_MPI_MAX_SIZE, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MPI( 3, "ECDH: z", &ssl->handshake->ecdh_ctx.z ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) + { + /* + * opaque psk_identity<0..2^16-1>; + */ + if( ssl->conf->psk == NULL || ssl->conf->psk_identity == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key for PSK" ) ); + return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); + } + + i = 4; + n = ssl->conf->psk_identity_len; + + if( i + 2 + n > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity too long or " + "SSL buffer too short" ) ); + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + } + + ssl->out_msg[i++] = (unsigned char)( n >> 8 ); + ssl->out_msg[i++] = (unsigned char)( n ); + + memcpy( ssl->out_msg + i, ssl->conf->psk_identity, ssl->conf->psk_identity_len ); + i += ssl->conf->psk_identity_len; + +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ) + { + n = 0; + } + else +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) + { + if( ( ret = ssl_write_encrypted_pms( ssl, i, &n, 2 ) ) != 0 ) + return( ret ); + } + else +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) + { + /* + * ClientDiffieHellmanPublic public (DHM send G^X mod P) + */ + n = ssl->handshake->dhm_ctx.len; + + if( i + 2 + n > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity or DHM size too long" + " or SSL buffer too short" ) ); + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + } + + ssl->out_msg[i++] = (unsigned char)( n >> 8 ); + ssl->out_msg[i++] = (unsigned char)( n ); + + ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx, + (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ), + &ssl->out_msg[i], n, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) + { + /* + * ClientECDiffieHellmanPublic public; + */ + ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx, &n, + &ssl->out_msg[i], MBEDTLS_SSL_MAX_CONTENT_LEN - i, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_ECP( 3, "ECDH: Q", &ssl->handshake->ecdh_ctx.Q ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, + ciphersuite_info->key_exchange ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) + { + i = 4; + if( ( ret = ssl_write_encrypted_pms( ssl, i, &n, 0 ) ) != 0 ) + return( ret ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + i = 4; + + ret = mbedtls_ecjpake_write_round_two( &ssl->handshake->ecjpake_ctx, + ssl->out_msg + i, MBEDTLS_SSL_MAX_CONTENT_LEN - i, &n, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret ); + return( ret ); + } + + ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx, + ssl->handshake->premaster, 32, &ssl->handshake->pmslen, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ + { + ((void) ciphersuite_info); + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + ssl->out_msglen = i + n; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE; + + ssl->state++; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client key exchange" ) ); + + return( 0 ); +} + +#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl ) +{ + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) ); + + if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); + return( ret ); + } + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) ); + ssl->state++; + return( 0 ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); +} +#else +static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + size_t n = 0, offset = 0; + unsigned char hash[48]; + unsigned char *hash_start = hash; + mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE; + unsigned int hashlen; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) ); + + if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); + return( ret ); + } + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) ); + ssl->state++; + return( 0 ); + } + + if( ssl->client_auth == 0 || mbedtls_ssl_own_cert( ssl ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) ); + ssl->state++; + return( 0 ); + } + + if( mbedtls_ssl_own_key( ssl ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key for certificate" ) ); + return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); + } + + /* + * Make an RSA signature of the handshake digests + */ + ssl->handshake->calc_verify( ssl, hash ); + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) + { + /* + * digitally-signed struct { + * opaque md5_hash[16]; + * opaque sha_hash[20]; + * }; + * + * md5_hash + * MD5(handshake_messages); + * + * sha_hash + * SHA(handshake_messages); + */ + hashlen = 36; + md_alg = MBEDTLS_MD_NONE; + + /* + * For ECDSA, default hash is SHA-1 only + */ + if( mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECDSA ) ) + { + hash_start += 16; + hashlen -= 16; + md_alg = MBEDTLS_MD_SHA1; + } + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ + MBEDTLS_SSL_PROTO_TLS1_1 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + /* + * digitally-signed struct { + * opaque handshake_messages[handshake_messages_length]; + * }; + * + * Taking shortcut here. We assume that the server always allows the + * PRF Hash function and has sent it in the allowed signature + * algorithms list received in the Certificate Request message. + * + * Until we encounter a server that does not, we will take this + * shortcut. + * + * Reason: Otherwise we should have running hashes for SHA512 and SHA224 + * in order to satisfy 'weird' needs from the server side. + */ + if( ssl->transform_negotiate->ciphersuite_info->mac == + MBEDTLS_MD_SHA384 ) + { + md_alg = MBEDTLS_MD_SHA384; + ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA384; + } + else + { + md_alg = MBEDTLS_MD_SHA256; + ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA256; + } + ssl->out_msg[5] = mbedtls_ssl_sig_from_pk( mbedtls_ssl_own_key( ssl ) ); + + /* Info from md_alg will be used instead */ + hashlen = 0; + offset = 2; + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + if( ( ret = mbedtls_pk_sign( mbedtls_ssl_own_key( ssl ), md_alg, hash_start, hashlen, + ssl->out_msg + 6 + offset, &n, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret ); + return( ret ); + } + + ssl->out_msg[4 + offset] = (unsigned char)( n >> 8 ); + ssl->out_msg[5 + offset] = (unsigned char)( n ); + + ssl->out_msglen = 6 + n + offset; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE_VERIFY; + + ssl->state++; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate verify" ) ); + + return( ret ); +} +#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +static int ssl_parse_new_session_ticket( mbedtls_ssl_context *ssl ) +{ + int ret; + uint32_t lifetime; + size_t ticket_len; + unsigned char *ticket; + const unsigned char *msg; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse new session ticket" ) ); + + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + /* + * struct { + * uint32 ticket_lifetime_hint; + * opaque ticket<0..2^16-1>; + * } NewSessionTicket; + * + * 0 . 3 ticket_lifetime_hint + * 4 . 5 ticket_len (n) + * 6 . 5+n ticket content + */ + if( ssl->in_msg[0] != MBEDTLS_SSL_HS_NEW_SESSION_TICKET || + ssl->in_hslen < 6 + mbedtls_ssl_hs_hdr_len( ssl ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET ); + } + + msg = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); + + lifetime = ( msg[0] << 24 ) | ( msg[1] << 16 ) | + ( msg[2] << 8 ) | ( msg[3] ); + + ticket_len = ( msg[4] << 8 ) | ( msg[5] ); + + if( ticket_len + 6 + mbedtls_ssl_hs_hdr_len( ssl ) != ssl->in_hslen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET ); + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", ticket_len ) ); + + /* We're not waiting for a NewSessionTicket message any more */ + ssl->handshake->new_session_ticket = 0; + ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC; + + /* + * Zero-length ticket means the server changed his mind and doesn't want + * to send a ticket after all, so just forget it + */ + if( ticket_len == 0 ) + return( 0 ); + + mbedtls_zeroize( ssl->session_negotiate->ticket, + ssl->session_negotiate->ticket_len ); + mbedtls_free( ssl->session_negotiate->ticket ); + ssl->session_negotiate->ticket = NULL; + ssl->session_negotiate->ticket_len = 0; + + if( ( ticket = mbedtls_calloc( 1, ticket_len ) ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "ticket alloc failed" ) ); + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + memcpy( ticket, msg + 6, ticket_len ); + + ssl->session_negotiate->ticket = ticket; + ssl->session_negotiate->ticket_len = ticket_len; + ssl->session_negotiate->ticket_lifetime = lifetime; + + /* + * RFC 5077 section 3.4: + * "If the client receives a session ticket from the server, then it + * discards any Session ID that was sent in the ServerHello." + */ + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket in use, discarding session id" ) ); + ssl->session_negotiate->id_len = 0; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse new session ticket" ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +/* + * SSL handshake -- client side -- single step + */ +int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl ) +{ + int ret = 0; + + if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "client state: %d", ssl->state ) ); + + if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) + return( ret ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) + { + if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) + return( ret ); + } +#endif + + /* Change state now, so that it is right in mbedtls_ssl_read_record(), used + * by DTLS for dropping out-of-sequence ChangeCipherSpec records */ +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + if( ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC && + ssl->handshake->new_session_ticket != 0 ) + { + ssl->state = MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET; + } +#endif + + switch( ssl->state ) + { + case MBEDTLS_SSL_HELLO_REQUEST: + ssl->state = MBEDTLS_SSL_CLIENT_HELLO; + break; + + /* + * ==> ClientHello + */ + case MBEDTLS_SSL_CLIENT_HELLO: + ret = ssl_write_client_hello( ssl ); + break; + + /* + * <== ServerHello + * Certificate + * ( ServerKeyExchange ) + * ( CertificateRequest ) + * ServerHelloDone + */ + case MBEDTLS_SSL_SERVER_HELLO: + ret = ssl_parse_server_hello( ssl ); + break; + + case MBEDTLS_SSL_SERVER_CERTIFICATE: + ret = mbedtls_ssl_parse_certificate( ssl ); + break; + + case MBEDTLS_SSL_SERVER_KEY_EXCHANGE: + ret = ssl_parse_server_key_exchange( ssl ); + break; + + case MBEDTLS_SSL_CERTIFICATE_REQUEST: + ret = ssl_parse_certificate_request( ssl ); + break; + + case MBEDTLS_SSL_SERVER_HELLO_DONE: + ret = ssl_parse_server_hello_done( ssl ); + break; + + /* + * ==> ( Certificate/Alert ) + * ClientKeyExchange + * ( CertificateVerify ) + * ChangeCipherSpec + * Finished + */ + case MBEDTLS_SSL_CLIENT_CERTIFICATE: + ret = mbedtls_ssl_write_certificate( ssl ); + break; + + case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE: + ret = ssl_write_client_key_exchange( ssl ); + break; + + case MBEDTLS_SSL_CERTIFICATE_VERIFY: + ret = ssl_write_certificate_verify( ssl ); + break; + + case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC: + ret = mbedtls_ssl_write_change_cipher_spec( ssl ); + break; + + case MBEDTLS_SSL_CLIENT_FINISHED: + ret = mbedtls_ssl_write_finished( ssl ); + break; + + /* + * <== ( NewSessionTicket ) + * ChangeCipherSpec + * Finished + */ +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + case MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET: + ret = ssl_parse_new_session_ticket( ssl ); + break; +#endif + + case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC: + ret = mbedtls_ssl_parse_change_cipher_spec( ssl ); + break; + + case MBEDTLS_SSL_SERVER_FINISHED: + ret = mbedtls_ssl_parse_finished( ssl ); + break; + + case MBEDTLS_SSL_FLUSH_BUFFERS: + MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) ); + ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; + break; + + case MBEDTLS_SSL_HANDSHAKE_WRAPUP: + mbedtls_ssl_handshake_wrapup( ssl ); + break; + + default: + MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + return( ret ); +} +#endif /* MBEDTLS_SSL_CLI_C */ diff --git a/mbedtls/ssl_cookie.c b/mbedtls/ssl_cookie.c new file mode 100644 index 0000000..9fb32de --- /dev/null +++ b/mbedtls/ssl_cookie.c @@ -0,0 +1,260 @@ +/* + * DTLS cookie callbacks implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * These session callbacks use a simple chained list + * to store and retrieve the session information. + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SSL_COOKIE_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include "mbedtls/ssl_cookie.h" +#include "mbedtls/ssl_internal.h" + +#include + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * If DTLS is in use, then at least one of SHA-1, SHA-256, SHA-512 is + * available. Try SHA-256 first, 512 wastes resources since we need to stay + * with max 32 bytes of cookie for DTLS 1.0 + */ +#if defined(MBEDTLS_SHA256_C) +#define COOKIE_MD MBEDTLS_MD_SHA224 +#define COOKIE_MD_OUTLEN 32 +#define COOKIE_HMAC_LEN 28 +#elif defined(MBEDTLS_SHA512_C) +#define COOKIE_MD MBEDTLS_MD_SHA384 +#define COOKIE_MD_OUTLEN 48 +#define COOKIE_HMAC_LEN 28 +#elif defined(MBEDTLS_SHA1_C) +#define COOKIE_MD MBEDTLS_MD_SHA1 +#define COOKIE_MD_OUTLEN 20 +#define COOKIE_HMAC_LEN 20 +#else +#error "DTLS hello verify needs SHA-1 or SHA-2" +#endif + +/* + * Cookies are formed of a 4-bytes timestamp (or serial number) and + * an HMAC of timestemp and client ID. + */ +#define COOKIE_LEN ( 4 + COOKIE_HMAC_LEN ) + +void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx ) +{ + mbedtls_md_init( &ctx->hmac_ctx ); +#if !defined(MBEDTLS_HAVE_TIME) + ctx->serial = 0; +#endif + ctx->timeout = MBEDTLS_SSL_COOKIE_TIMEOUT; + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif +} + +void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay ) +{ + ctx->timeout = delay; +} + +void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx ) +{ + mbedtls_md_free( &ctx->hmac_ctx ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif + + mbedtls_zeroize( ctx, sizeof( mbedtls_ssl_cookie_ctx ) ); +} + +int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + unsigned char key[COOKIE_MD_OUTLEN]; + + if( ( ret = f_rng( p_rng, key, sizeof( key ) ) ) != 0 ) + return( ret ); + + ret = mbedtls_md_setup( &ctx->hmac_ctx, mbedtls_md_info_from_type( COOKIE_MD ), 1 ); + if( ret != 0 ) + return( ret ); + + ret = mbedtls_md_hmac_starts( &ctx->hmac_ctx, key, sizeof( key ) ); + if( ret != 0 ) + return( ret ); + + mbedtls_zeroize( key, sizeof( key ) ); + + return( 0 ); +} + +/* + * Generate the HMAC part of a cookie + */ +static int ssl_cookie_hmac( mbedtls_md_context_t *hmac_ctx, + const unsigned char time[4], + unsigned char **p, unsigned char *end, + const unsigned char *cli_id, size_t cli_id_len ) +{ + unsigned char hmac_out[COOKIE_MD_OUTLEN]; + + if( (size_t)( end - *p ) < COOKIE_HMAC_LEN ) + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + + if( mbedtls_md_hmac_reset( hmac_ctx ) != 0 || + mbedtls_md_hmac_update( hmac_ctx, time, 4 ) != 0 || + mbedtls_md_hmac_update( hmac_ctx, cli_id, cli_id_len ) != 0 || + mbedtls_md_hmac_finish( hmac_ctx, hmac_out ) != 0 ) + { + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + memcpy( *p, hmac_out, COOKIE_HMAC_LEN ); + *p += COOKIE_HMAC_LEN; + + return( 0 ); +} + +/* + * Generate cookie for DTLS ClientHello verification + */ +int mbedtls_ssl_cookie_write( void *p_ctx, + unsigned char **p, unsigned char *end, + const unsigned char *cli_id, size_t cli_id_len ) +{ + int ret; + mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx; + unsigned long t; + + if( ctx == NULL || cli_id == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( (size_t)( end - *p ) < COOKIE_LEN ) + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + +#if defined(MBEDTLS_HAVE_TIME) + t = (unsigned long) mbedtls_time( NULL ); +#else + t = ctx->serial++; +#endif + + (*p)[0] = (unsigned char)( t >> 24 ); + (*p)[1] = (unsigned char)( t >> 16 ); + (*p)[2] = (unsigned char)( t >> 8 ); + (*p)[3] = (unsigned char)( t ); + *p += 4; + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret ); +#endif + + ret = ssl_cookie_hmac( &ctx->hmac_ctx, *p - 4, + p, end, cli_id, cli_id_len ); + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + + MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +/* + * Check a cookie + */ +int mbedtls_ssl_cookie_check( void *p_ctx, + const unsigned char *cookie, size_t cookie_len, + const unsigned char *cli_id, size_t cli_id_len ) +{ + unsigned char ref_hmac[COOKIE_HMAC_LEN]; + int ret = 0; + unsigned char *p = ref_hmac; + mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx; + unsigned long cur_time, cookie_time; + + if( ctx == NULL || cli_id == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( cookie_len != COOKIE_LEN ) + return( -1 ); + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret ); +#endif + + if( ssl_cookie_hmac( &ctx->hmac_ctx, cookie, + &p, p + sizeof( ref_hmac ), + cli_id, cli_id_len ) != 0 ) + ret = -1; + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + + MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + if( ret != 0 ) + return( ret ); + + if( mbedtls_ssl_safer_memcmp( cookie + 4, ref_hmac, sizeof( ref_hmac ) ) != 0 ) + return( -1 ); + +#if defined(MBEDTLS_HAVE_TIME) + cur_time = (unsigned long) mbedtls_time( NULL ); +#else + cur_time = ctx->serial; +#endif + + cookie_time = ( (unsigned long) cookie[0] << 24 ) | + ( (unsigned long) cookie[1] << 16 ) | + ( (unsigned long) cookie[2] << 8 ) | + ( (unsigned long) cookie[3] ); + + if( ctx->timeout != 0 && cur_time - cookie_time > ctx->timeout ) + return( -1 ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_COOKIE_C */ diff --git a/mbedtls/ssl_srv.c b/mbedtls/ssl_srv.c new file mode 100644 index 0000000..fc0d2d7 --- /dev/null +++ b/mbedtls/ssl_srv.c @@ -0,0 +1,3926 @@ +/* + * SSLv3/TLSv1 server-side functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SSL_SRV_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include "mbedtls/debug.h" +#include "mbedtls/ssl.h" +#include "mbedtls/ssl_internal.h" + +#include + +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) +int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl, + const unsigned char *info, + size_t ilen ) +{ + if( ssl->conf->endpoint != MBEDTLS_SSL_IS_SERVER ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + mbedtls_free( ssl->cli_id ); + + if( ( ssl->cli_id = mbedtls_calloc( 1, ilen ) ) == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + memcpy( ssl->cli_id, info, ilen ); + ssl->cli_id_len = ilen; + + return( 0 ); +} + +void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf, + mbedtls_ssl_cookie_write_t *f_cookie_write, + mbedtls_ssl_cookie_check_t *f_cookie_check, + void *p_cookie ) +{ + conf->f_cookie_write = f_cookie_write; + conf->f_cookie_check = f_cookie_check; + conf->p_cookie = p_cookie; +} +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + int ret; + size_t servername_list_size, hostname_len; + const unsigned char *p; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "parse ServerName extension" ) ); + + servername_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) ); + if( servername_list_size + 2 != len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + p = buf + 2; + while( servername_list_size > 0 ) + { + hostname_len = ( ( p[1] << 8 ) | p[2] ); + if( hostname_len + 3 > servername_list_size ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + if( p[0] == MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME ) + { + ret = ssl->conf->f_sni( ssl->conf->p_sni, + ssl, p + 3, hostname_len ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_sni_wrapper", ret ); + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + return( 0 ); + } + + servername_list_size -= hostname_len + 3; + p += hostname_len + 3; + } + + if( servername_list_size != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + return( 0 ); +} +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ + +static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + int ret; + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) + { + /* Check verify-data in constant-time. The length OTOH is no secret */ + if( len != 1 + ssl->verify_data_len || + buf[0] != ssl->verify_data_len || + mbedtls_ssl_safer_memcmp( buf + 1, ssl->peer_verify_data, + ssl->verify_data_len ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + } + else +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + { + if( len != 1 || buf[0] != 0x0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; + } + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ + defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + size_t sig_alg_list_size; + const unsigned char *p; + const unsigned char *end = buf + len; + const int *md_cur; + + + sig_alg_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) ); + if( sig_alg_list_size + 2 != len || + sig_alg_list_size % 2 != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + /* + * For now, ignore the SignatureAlgorithm part and rely on offered + * ciphersuites only for that part. To be fixed later. + * + * So, just look at the HashAlgorithm part. + */ + for( md_cur = ssl->conf->sig_hashes; *md_cur != MBEDTLS_MD_NONE; md_cur++ ) { + for( p = buf + 2; p < end; p += 2 ) { + if( *md_cur == (int) mbedtls_ssl_md_alg_from_hash( p[0] ) ) { + ssl->handshake->sig_alg = p[0]; + goto have_sig_alg; + } + } + } + + /* Some key echanges do not need signatures at all */ + MBEDTLS_SSL_DEBUG_MSG( 3, ( "no signature_algorithm in common" ) ); + return( 0 ); + +have_sig_alg: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: %d", + ssl->handshake->sig_alg ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && + MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + size_t list_size, our_size; + const unsigned char *p; + const mbedtls_ecp_curve_info *curve_info, **curves; + + list_size = ( ( buf[0] << 8 ) | ( buf[1] ) ); + if( list_size + 2 != len || + list_size % 2 != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + /* Should never happen unless client duplicates the extension */ + if( ssl->handshake->curves != NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + /* Don't allow our peer to make us allocate too much memory, + * and leave room for a final 0 */ + our_size = list_size / 2 + 1; + if( our_size > MBEDTLS_ECP_DP_MAX ) + our_size = MBEDTLS_ECP_DP_MAX; + + if( ( curves = mbedtls_calloc( our_size, sizeof( *curves ) ) ) == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + ssl->handshake->curves = curves; + + p = buf + 2; + while( list_size > 0 && our_size > 1 ) + { + curve_info = mbedtls_ecp_curve_info_from_tls_id( ( p[0] << 8 ) | p[1] ); + + if( curve_info != NULL ) + { + *curves++ = curve_info; + our_size--; + } + + list_size -= 2; + p += 2; + } + + return( 0 ); +} + +static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + size_t list_size; + const unsigned char *p; + + list_size = buf[0]; + if( list_size + 1 != len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + p = buf + 1; + while( list_size > 0 ) + { + if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED || + p[0] == MBEDTLS_ECP_PF_COMPRESSED ) + { +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) + ssl->handshake->ecdh_ctx.point_format = p[0]; +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + ssl->handshake->ecjpake_ctx.point_format = p[0]; +#endif + MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) ); + return( 0 ); + } + + list_size--; + p++; + } + + return( 0 ); +} +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || + MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + int ret; + + if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) ); + return( 0 ); + } + + if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx, + buf, len ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret ); + return( ret ); + } + + /* Only mark the extension as OK when we're sure it is */ + ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK; + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( len != 1 || buf[0] >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ssl->session_negotiate->mfl_code = buf[0]; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( len != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ((void) buf); + + if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED ) + ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( len != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ((void) buf); + + if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED && + ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) + { + ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED; + } + + return( 0 ); +} +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len ) +{ + if( len != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ((void) buf); + + if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED && + ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) + { + ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; + } + + return( 0 ); +} +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t len ) +{ + int ret; + mbedtls_ssl_session session; + + mbedtls_ssl_session_init( &session ); + + if( ssl->conf->f_ticket_parse == NULL || + ssl->conf->f_ticket_write == NULL ) + { + return( 0 ); + } + + /* Remember the client asked us to send a new ticket */ + ssl->handshake->new_session_ticket = 1; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", len ) ); + + if( len == 0 ) + return( 0 ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket rejected: renegotiating" ) ); + return( 0 ); + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + /* + * Failures are ok: just ignore the ticket and proceed. + */ + if( ( ret = ssl->conf->f_ticket_parse( ssl->conf->p_ticket, &session, + buf, len ) ) != 0 ) + { + mbedtls_ssl_session_free( &session ); + + if( ret == MBEDTLS_ERR_SSL_INVALID_MAC ) + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is not authentic" ) ); + else if( ret == MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED ) + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is expired" ) ); + else + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_parse", ret ); + + return( 0 ); + } + + /* + * Keep the session ID sent by the client, since we MUST send it back to + * inform them we're accepting the ticket (RFC 5077 section 3.4) + */ + session.id_len = ssl->session_negotiate->id_len; + memcpy( &session.id, ssl->session_negotiate->id, session.id_len ); + + mbedtls_ssl_session_free( ssl->session_negotiate ); + memcpy( ssl->session_negotiate, &session, sizeof( mbedtls_ssl_session ) ); + + /* Zeroize instead of free as we copied the content */ + mbedtls_zeroize( &session, sizeof( mbedtls_ssl_session ) ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from ticket" ) ); + + ssl->handshake->resume = 1; + + /* Don't send a new ticket after all, this one is OK */ + ssl->handshake->new_session_ticket = 0; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_SSL_ALPN) +static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ + size_t list_len, cur_len, ours_len; + const unsigned char *theirs, *start, *end; + const char **ours; + + /* If ALPN not configured, just ignore the extension */ + if( ssl->conf->alpn_list == NULL ) + return( 0 ); + + /* + * opaque ProtocolName<1..2^8-1>; + * + * struct { + * ProtocolName protocol_name_list<2..2^16-1> + * } ProtocolNameList; + */ + + /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */ + if( len < 4 ) + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + + list_len = ( buf[0] << 8 ) | buf[1]; + if( list_len != len - 2 ) + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + + /* + * Use our order of preference + */ + start = buf + 2; + end = buf + len; + for( ours = ssl->conf->alpn_list; *ours != NULL; ours++ ) + { + ours_len = strlen( *ours ); + for( theirs = start; theirs != end; theirs += cur_len ) + { + /* If the list is well formed, we should get equality first */ + if( theirs > end ) + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + + cur_len = *theirs++; + + /* Empty strings MUST NOT be included */ + if( cur_len == 0 ) + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + + if( cur_len == ours_len && + memcmp( theirs, *ours, cur_len ) == 0 ) + { + ssl->alpn_chosen = *ours; + return( 0 ); + } + } + } + + /* If we get there, no match was found */ + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); +} +#endif /* MBEDTLS_SSL_ALPN */ + +/* + * Auxiliary functions for ServerHello parsing and related actions + */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/* + * Return 0 if the given key uses one of the acceptable curves, -1 otherwise + */ +#if defined(MBEDTLS_ECDSA_C) +static int ssl_check_key_curve( mbedtls_pk_context *pk, + const mbedtls_ecp_curve_info **curves ) +{ + const mbedtls_ecp_curve_info **crv = curves; + mbedtls_ecp_group_id grp_id = mbedtls_pk_ec( *pk )->grp.id; + + while( *crv != NULL ) + { + if( (*crv)->grp_id == grp_id ) + return( 0 ); + crv++; + } + + return( -1 ); +} +#endif /* MBEDTLS_ECDSA_C */ + +/* + * Try picking a certificate for this ciphersuite, + * return 0 on success and -1 on failure. + */ +static int ssl_pick_cert( mbedtls_ssl_context *ssl, + const mbedtls_ssl_ciphersuite_t * ciphersuite_info ) +{ + mbedtls_ssl_key_cert *cur, *list, *fallback = NULL; + mbedtls_pk_type_t pk_alg = mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ); + uint32_t flags; + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + if( ssl->handshake->sni_key_cert != NULL ) + list = ssl->handshake->sni_key_cert; + else +#endif + list = ssl->conf->key_cert; + + if( pk_alg == MBEDTLS_PK_NONE ) + return( 0 ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite requires certificate" ) ); + + if( list == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server has no certificate" ) ); + return( -1 ); + } + + for( cur = list; cur != NULL; cur = cur->next ) + { + MBEDTLS_SSL_DEBUG_CRT( 3, "candidate certificate chain, certificate", + cur->cert ); + + if( ! mbedtls_pk_can_do( cur->key, pk_alg ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: key type" ) ); + continue; + } + + /* + * This avoids sending the client a cert it'll reject based on + * keyUsage or other extensions. + * + * It also allows the user to provision different certificates for + * different uses based on keyUsage, eg if they want to avoid signing + * and decrypting with the same RSA key. + */ + if( mbedtls_ssl_check_cert_usage( cur->cert, ciphersuite_info, + MBEDTLS_SSL_IS_SERVER, &flags ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: " + "(extended) key usage extension" ) ); + continue; + } + +#if defined(MBEDTLS_ECDSA_C) + if( pk_alg == MBEDTLS_PK_ECDSA && + ssl_check_key_curve( cur->key, ssl->handshake->curves ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: elliptic curve" ) ); + continue; + } +#endif + + /* + * Try to select a SHA-1 certificate for pre-1.2 clients, but still + * present them a SHA-higher cert rather than failing if it's the only + * one we got that satisfies the other conditions. + */ + if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 && + cur->cert->sig_md != MBEDTLS_MD_SHA1 ) + { + if( fallback == NULL ) + fallback = cur; + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate not preferred: " + "sha-2 with pre-TLS 1.2 client" ) ); + continue; + } + } + + /* If we get there, we got a winner */ + break; + } + + if( cur == NULL ) + cur = fallback; + + /* Do not update ssl->handshake->key_cert unless there is a match */ + if( cur != NULL ) + { + ssl->handshake->key_cert = cur; + MBEDTLS_SSL_DEBUG_CRT( 3, "selected certificate chain, certificate", + ssl->handshake->key_cert->cert ); + return( 0 ); + } + + return( -1 ); +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/* + * Check if a given ciphersuite is suitable for use with our config/keys/etc + * Sets ciphersuite_info only if the suite matches. + */ +static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id, + const mbedtls_ssl_ciphersuite_t **ciphersuite_info ) +{ + const mbedtls_ssl_ciphersuite_t *suite_info; + + suite_info = mbedtls_ssl_ciphersuite_from_id( suite_id ); + if( suite_info == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "trying ciphersuite: %s", suite_info->name ) ); + + if( suite_info->min_minor_ver > ssl->minor_ver || + suite_info->max_minor_ver < ssl->minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: version" ) ); + return( 0 ); + } + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ( suite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) ) + return( 0 ); +#endif + +#if defined(MBEDTLS_ARC4_C) + if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED && + suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: rc4" ) ); + return( 0 ); + } +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE && + ( ssl->handshake->cli_exts & MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK ) == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: ecjpake " + "not configured or ext missing" ) ); + return( 0 ); + } +#endif + + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) + if( mbedtls_ssl_ciphersuite_uses_ec( suite_info ) && + ( ssl->handshake->curves == NULL || + ssl->handshake->curves[0] == NULL ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: " + "no common elliptic curve" ) ); + return( 0 ); + } +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + /* If the ciphersuite requires a pre-shared key and we don't + * have one, skip it now rather than failing later */ + if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) && + ssl->conf->f_psk == NULL && + ( ssl->conf->psk == NULL || ssl->conf->psk_identity == NULL || + ssl->conf->psk_identity_len == 0 || ssl->conf->psk_len == 0 ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no pre-shared key" ) ); + return( 0 ); + } +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /* + * Final check: if ciphersuite requires us to have a + * certificate/key of a particular type: + * - select the appropriate certificate if we have one, or + * - try the next ciphersuite if we don't + * This must be done last since we modify the key_cert list. + */ + if( ssl_pick_cert( ssl, suite_info ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: " + "no suitable certificate" ) ); + return( 0 ); + } +#endif + + *ciphersuite_info = suite_info; + return( 0 ); +} + +#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO) +static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl ) +{ + int ret, got_common_suite; + unsigned int i, j; + size_t n; + unsigned int ciph_len, sess_len, chal_len; + unsigned char *buf, *p; + const int *ciphersuites; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello v2" ) ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "client hello v2 illegal for renegotiation" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + buf = ssl->in_hdr; + + MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, 5 ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message type: %d", + buf[2] ) ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message len.: %d", + ( ( buf[0] & 0x7F ) << 8 ) | buf[1] ) ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, max. version: [%d:%d]", + buf[3], buf[4] ) ); + + /* + * SSLv2 Client Hello + * + * Record layer: + * 0 . 1 message length + * + * SSL layer: + * 2 . 2 message type + * 3 . 4 protocol version + */ + if( buf[2] != MBEDTLS_SSL_HS_CLIENT_HELLO || + buf[3] != MBEDTLS_SSL_MAJOR_VERSION_3 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + n = ( ( buf[0] << 8 ) | buf[1] ) & 0x7FFF; + + if( n < 17 || n > 512 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ssl->major_ver = MBEDTLS_SSL_MAJOR_VERSION_3; + ssl->minor_ver = ( buf[4] <= ssl->conf->max_minor_ver ) + ? buf[4] : ssl->conf->max_minor_ver; + + if( ssl->minor_ver < ssl->conf->min_minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum" + " [%d:%d] < [%d:%d]", + ssl->major_ver, ssl->minor_ver, + ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) ); + + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); + return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); + } + + ssl->handshake->max_major_ver = buf[3]; + ssl->handshake->max_minor_ver = buf[4]; + + if( ( ret = mbedtls_ssl_fetch_input( ssl, 2 + n ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); + return( ret ); + } + + ssl->handshake->update_checksum( ssl, buf + 2, n ); + + buf = ssl->in_msg; + n = ssl->in_left - 5; + + /* + * 0 . 1 ciphersuitelist length + * 2 . 3 session id length + * 4 . 5 challenge length + * 6 . .. ciphersuitelist + * .. . .. session id + * .. . .. challenge + */ + MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, n ); + + ciph_len = ( buf[0] << 8 ) | buf[1]; + sess_len = ( buf[2] << 8 ) | buf[3]; + chal_len = ( buf[4] << 8 ) | buf[5]; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciph_len: %d, sess_len: %d, chal_len: %d", + ciph_len, sess_len, chal_len ) ); + + /* + * Make sure each parameter length is valid + */ + if( ciph_len < 3 || ( ciph_len % 3 ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + if( sess_len > 32 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + if( chal_len < 8 || chal_len > 32 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + if( n != 6 + ciph_len + sess_len + chal_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist", + buf + 6, ciph_len ); + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", + buf + 6 + ciph_len, sess_len ); + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, challenge", + buf + 6 + ciph_len + sess_len, chal_len ); + + p = buf + 6 + ciph_len; + ssl->session_negotiate->id_len = sess_len; + memset( ssl->session_negotiate->id, 0, + sizeof( ssl->session_negotiate->id ) ); + memcpy( ssl->session_negotiate->id, p, ssl->session_negotiate->id_len ); + + p += sess_len; + memset( ssl->handshake->randbytes, 0, 64 ); + memcpy( ssl->handshake->randbytes + 32 - chal_len, p, chal_len ); + + /* + * Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV + */ + for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 ) + { + if( p[0] == 0 && p[1] == 0 && p[2] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) ); +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV " + "during renegotiation" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; + break; + } + } + +#if defined(MBEDTLS_SSL_FALLBACK_SCSV) + for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 ) + { + if( p[0] == 0 && + p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) && + p[2] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "received FALLBACK_SCSV" ) ); + + if( ssl->minor_ver < ssl->conf->max_minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) ); + + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + break; + } + } +#endif /* MBEDTLS_SSL_FALLBACK_SCSV */ + + got_common_suite = 0; + ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver]; + ciphersuite_info = NULL; +#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE) + for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 ) + { + for( i = 0; ciphersuites[i] != 0; i++ ) +#else + for( i = 0; ciphersuites[i] != 0; i++ ) + { + for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 ) +#endif + { + if( p[0] != 0 || + p[1] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) || + p[2] != ( ( ciphersuites[i] ) & 0xFF ) ) + continue; + + got_common_suite = 1; + + if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i], + &ciphersuite_info ) ) != 0 ) + return( ret ); + + if( ciphersuite_info != NULL ) + goto have_ciphersuite_v2; + } + } + + if( got_common_suite ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, " + "but none of them usable" ) ); + return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE ); + } + else + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) ); + return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN ); + } + +have_ciphersuite_v2: + MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) ); + + ssl->session_negotiate->ciphersuite = ciphersuites[i]; + ssl->transform_negotiate->ciphersuite_info = ciphersuite_info; + + /* + * SSLv2 Client Hello relevant renegotiation security checks + */ + if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && + ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ssl->in_left = 0; + ssl->state++; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello v2" ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */ + +static int ssl_parse_client_hello( mbedtls_ssl_context *ssl ) +{ + int ret, got_common_suite; + size_t i, j; + size_t ciph_offset, comp_offset, ext_offset; + size_t msg_len, ciph_len, sess_len, comp_len, ext_len; +#if defined(MBEDTLS_SSL_PROTO_DTLS) + size_t cookie_offset, cookie_len; +#endif + unsigned char *buf, *p, *ext; +#if defined(MBEDTLS_SSL_RENEGOTIATION) + int renegotiation_info_seen = 0; +#endif + int handshake_failure = 0; + const int *ciphersuites; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info; + int major, minor; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello" ) ); + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +read_record_header: +#endif + /* + * If renegotiating, then the input was read with mbedtls_ssl_read_record(), + * otherwise read it ourselves manually in order to support SSLv2 + * ClientHello, which doesn't use the same record layer format. + */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) +#endif + { + if( ( ret = mbedtls_ssl_fetch_input( ssl, 5 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); + return( ret ); + } + } + + buf = ssl->in_hdr; + +#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO) +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_STREAM ) +#endif + if( ( buf[0] & 0x80 ) != 0 ) + return ssl_parse_client_hello_v2( ssl ); +#endif + + MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, mbedtls_ssl_hdr_len( ssl ) ); + + /* + * SSLv3/TLS Client Hello + * + * Record layer: + * 0 . 0 message type + * 1 . 2 protocol version + * 3 . 11 DTLS: epoch + record sequence number + * 3 . 4 message length + */ + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message type: %d", + buf[0] ) ); + + if( buf[0] != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message len.: %d", + ( ssl->in_len[0] << 8 ) | ssl->in_len[1] ) ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, protocol version: [%d:%d]", + buf[1], buf[2] ) ); + + mbedtls_ssl_read_version( &major, &minor, ssl->conf->transport, buf + 1 ); + + /* According to RFC 5246 Appendix E.1, the version here is typically + * "{03,00}, the lowest version number supported by the client, [or] the + * value of ClientHello.client_version", so the only meaningful check here + * is the major version shouldn't be less than 3 */ + if( major < MBEDTLS_SSL_MAJOR_VERSION_3 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + /* For DTLS if this is the initial handshake, remember the client sequence + * number to use it in our next message (RFC 6347 4.2.1) */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM +#if defined(MBEDTLS_SSL_RENEGOTIATION) + && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE +#endif + ) + { + /* Epoch should be 0 for initial handshakes */ + if( ssl->in_ctr[0] != 0 || ssl->in_ctr[1] != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + memcpy( ssl->out_ctr + 2, ssl->in_ctr + 2, 6 ); + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + if( mbedtls_ssl_dtls_replay_check( ssl ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record, discarding" ) ); + ssl->next_record_offset = 0; + ssl->in_left = 0; + goto read_record_header; + } + + /* No MAC to check yet, so we can update right now */ + mbedtls_ssl_dtls_replay_update( ssl ); +#endif + } +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + msg_len = ( ssl->in_len[0] << 8 ) | ssl->in_len[1]; + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) + { + /* Set by mbedtls_ssl_read_record() */ + msg_len = ssl->in_hslen; + } + else +#endif + { + if( msg_len > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + if( ( ret = mbedtls_ssl_fetch_input( ssl, mbedtls_ssl_hdr_len( ssl ) + msg_len ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); + return( ret ); + } + + /* Done reading this record, get ready for the next one */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + ssl->next_record_offset = msg_len + mbedtls_ssl_hdr_len( ssl ); + else +#endif + ssl->in_left = 0; + } + + buf = ssl->in_msg; + + MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, msg_len ); + + ssl->handshake->update_checksum( ssl, buf, msg_len ); + + /* + * Handshake layer: + * 0 . 0 handshake type + * 1 . 3 handshake length + * 4 . 5 DTLS only: message seqence number + * 6 . 8 DTLS only: fragment offset + * 9 . 11 DTLS only: fragment length + */ + if( msg_len < mbedtls_ssl_hs_hdr_len( ssl ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake type: %d", buf[0] ) ); + + if( buf[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake len.: %d", + ( buf[1] << 16 ) | ( buf[2] << 8 ) | buf[3] ) ); + + /* We don't support fragmentation of ClientHello (yet?) */ + if( buf[1] != 0 || + msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + ( ( buf[2] << 8 ) | buf[3] ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + /* + * Copy the client's handshake message_seq on initial handshakes, + * check sequence number on renego. + */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + { + /* This couldn't be done in ssl_prepare_handshake_record() */ + unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) | + ssl->in_msg[5]; + + if( cli_msg_seq != ssl->handshake->in_msg_seq ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message_seq: " + "%d (expected %d)", cli_msg_seq, + ssl->handshake->in_msg_seq ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ssl->handshake->in_msg_seq++; + } + else +#endif + { + unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) | + ssl->in_msg[5]; + ssl->handshake->out_msg_seq = cli_msg_seq; + ssl->handshake->in_msg_seq = cli_msg_seq + 1; + } + + /* + * For now we don't support fragmentation, so make sure + * fragment_offset == 0 and fragment_length == length + */ + if( ssl->in_msg[6] != 0 || ssl->in_msg[7] != 0 || ssl->in_msg[8] != 0 || + memcmp( ssl->in_msg + 1, ssl->in_msg + 9, 3 ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "ClientHello fragmentation not supported" ) ); + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } + } +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + buf += mbedtls_ssl_hs_hdr_len( ssl ); + msg_len -= mbedtls_ssl_hs_hdr_len( ssl ); + + /* + * ClientHello layer: + * 0 . 1 protocol version + * 2 . 33 random bytes (starting with 4 bytes of Unix time) + * 34 . 35 session id length (1 byte) + * 35 . 34+x session id + * 35+x . 35+x DTLS only: cookie length (1 byte) + * 36+x . .. DTLS only: cookie + * .. . .. ciphersuite list length (2 bytes) + * .. . .. ciphersuite list + * .. . .. compression alg. list length (1 byte) + * .. . .. compression alg. list + * .. . .. extensions length (2 bytes, optional) + * .. . .. extensions (optional) + */ + + /* + * Minimal length (with everything empty and extensions ommitted) is + * 2 + 32 + 1 + 2 + 1 = 38 bytes. Check that first, so that we can + * read at least up to session id length without worrying. + */ + if( msg_len < 38 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + /* + * Check and save the protocol version + */ + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, version", buf, 2 ); + + mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver, + ssl->conf->transport, buf ); + + ssl->handshake->max_major_ver = ssl->major_ver; + ssl->handshake->max_minor_ver = ssl->minor_ver; + + if( ssl->major_ver < ssl->conf->min_major_ver || + ssl->minor_ver < ssl->conf->min_minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum" + " [%d:%d] < [%d:%d]", + ssl->major_ver, ssl->minor_ver, + ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) ); + + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); + + return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); + } + + if( ssl->major_ver > ssl->conf->max_major_ver ) + { + ssl->major_ver = ssl->conf->max_major_ver; + ssl->minor_ver = ssl->conf->max_minor_ver; + } + else if( ssl->minor_ver > ssl->conf->max_minor_ver ) + ssl->minor_ver = ssl->conf->max_minor_ver; + + /* + * Save client random (inc. Unix time) + */ + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", buf + 2, 32 ); + + memcpy( ssl->handshake->randbytes, buf + 2, 32 ); + + /* + * Check the session ID length and save session ID + */ + sess_len = buf[34]; + + if( sess_len > sizeof( ssl->session_negotiate->id ) || + sess_len + 34 + 2 > msg_len ) /* 2 for cipherlist length field */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 35, sess_len ); + + ssl->session_negotiate->id_len = sess_len; + memset( ssl->session_negotiate->id, 0, + sizeof( ssl->session_negotiate->id ) ); + memcpy( ssl->session_negotiate->id, buf + 35, + ssl->session_negotiate->id_len ); + + /* + * Check the cookie length and content + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + cookie_offset = 35 + sess_len; + cookie_len = buf[cookie_offset]; + + if( cookie_offset + 1 + cookie_len + 2 > msg_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie", + buf + cookie_offset + 1, cookie_len ); + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) + if( ssl->conf->f_cookie_check != NULL +#if defined(MBEDTLS_SSL_RENEGOTIATION) + && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE +#endif + ) + { + if( ssl->conf->f_cookie_check( ssl->conf->p_cookie, + buf + cookie_offset + 1, cookie_len, + ssl->cli_id, ssl->cli_id_len ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification failed" ) ); + ssl->handshake->verify_cookie_len = 1; + } + else + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification passed" ) ); + ssl->handshake->verify_cookie_len = 0; + } + } + else +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ + { + /* We know we didn't send a cookie, so it should be empty */ + if( cookie_len != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification skipped" ) ); + } + + /* + * Check the ciphersuitelist length (will be parsed later) + */ + ciph_offset = cookie_offset + 1 + cookie_len; + } + else +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + ciph_offset = 35 + sess_len; + + ciph_len = ( buf[ciph_offset + 0] << 8 ) + | ( buf[ciph_offset + 1] ); + + if( ciph_len < 2 || + ciph_len + 2 + ciph_offset + 1 > msg_len || /* 1 for comp. alg. len */ + ( ciph_len % 2 ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist", + buf + ciph_offset + 2, ciph_len ); + + /* + * Check the compression algorithms length and pick one + */ + comp_offset = ciph_offset + 2 + ciph_len; + + comp_len = buf[comp_offset]; + + if( comp_len < 1 || + comp_len > 16 || + comp_len + comp_offset + 1 > msg_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, compression", + buf + comp_offset + 1, comp_len ); + + ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL; +#if defined(MBEDTLS_ZLIB_SUPPORT) + for( i = 0; i < comp_len; ++i ) + { + if( buf[comp_offset + 1 + i] == MBEDTLS_SSL_COMPRESS_DEFLATE ) + { + ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_DEFLATE; + break; + } + } +#endif + + /* See comments in ssl_write_client_hello() */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL; +#endif + + /* Do not parse the extensions if the protocol is SSLv3 */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) ) + { +#endif + /* + * Check the extension length + */ + ext_offset = comp_offset + 1 + comp_len; + if( msg_len > ext_offset ) + { + if( msg_len < ext_offset + 2 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + ext_len = ( buf[ext_offset + 0] << 8 ) + | ( buf[ext_offset + 1] ); + + if( ( ext_len > 0 && ext_len < 4 ) || + msg_len != ext_offset + 2 + ext_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + } + else + ext_len = 0; + + ext = buf + ext_offset + 2; + MBEDTLS_SSL_DEBUG_BUF( 3, "client hello extensions", ext, ext_len ); + + while( ext_len != 0 ) + { + unsigned int ext_id = ( ( ext[0] << 8 ) + | ( ext[1] ) ); + unsigned int ext_size = ( ( ext[2] << 8 ) + | ( ext[3] ) ); + + if( ext_size + 4 > ext_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + switch( ext_id ) + { +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + case MBEDTLS_TLS_EXT_SERVERNAME: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ServerName extension" ) ); + if( ssl->conf->f_sni == NULL ) + break; + + ret = ssl_parse_servername_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ + + case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) ); +#if defined(MBEDTLS_SSL_RENEGOTIATION) + renegotiation_info_seen = 1; +#endif + + ret = ssl_parse_renegotiation_info( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ + defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) + case MBEDTLS_TLS_EXT_SIG_ALG: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found signature_algorithms extension" ) ); +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + break; +#endif + + ret = ssl_parse_signature_algorithms_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && + MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + case MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported elliptic curves extension" ) ); + + ret = ssl_parse_supported_elliptic_curves( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; + + case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported point formats extension" ) ); + ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT; + + ret = ssl_parse_supported_point_formats( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || + MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + case MBEDTLS_TLS_EXT_ECJPAKE_KKPP: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake kkpp extension" ) ); + + ret = ssl_parse_ecjpake_kkpp( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max fragment length extension" ) ); + + ret = ssl_parse_max_fragment_length_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + case MBEDTLS_TLS_EXT_TRUNCATED_HMAC: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated hmac extension" ) ); + + ret = ssl_parse_truncated_hmac_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt then mac extension" ) ); + + ret = ssl_parse_encrypt_then_mac_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended master secret extension" ) ); + + ret = ssl_parse_extended_ms_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + case MBEDTLS_TLS_EXT_SESSION_TICKET: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session ticket extension" ) ); + + ret = ssl_parse_session_ticket_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_SSL_ALPN) + case MBEDTLS_TLS_EXT_ALPN: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) ); + + ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size ); + if( ret != 0 ) + return( ret ); + break; +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + + default: + MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)", + ext_id ) ); + } + + ext_len -= 4 + ext_size; + ext += 4 + ext_size; + + if( ext_len > 0 && ext_len < 4 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + } +#if defined(MBEDTLS_SSL_PROTO_SSL3) + } +#endif + +#if defined(MBEDTLS_SSL_FALLBACK_SCSV) + for( i = 0, p = buf + 41 + sess_len; i < ciph_len; i += 2, p += 2 ) + { + if( p[0] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) && + p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "received FALLBACK_SCSV" ) ); + + if( ssl->minor_ver < ssl->conf->max_minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) ); + + mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + break; + } + } +#endif /* MBEDTLS_SSL_FALLBACK_SCSV */ + + /* + * Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV + */ + for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 ) + { + if( p[0] == 0 && p[1] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) ); +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV during renegotiation" ) ); + + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } +#endif + ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; + break; + } + } + + /* + * Renegotiation security checks + */ + if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION && + ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) ); + handshake_failure = 1; + } +#if defined(MBEDTLS_SSL_RENEGOTIATION) + else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && + ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION && + renegotiation_info_seen == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) ); + handshake_failure = 1; + } + else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && + ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && + ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) ); + handshake_failure = 1; + } + else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && + ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && + renegotiation_info_seen == 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) ); + handshake_failure = 1; + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + if( handshake_failure == 1 ) + { + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + /* + * Search for a matching ciphersuite + * (At the end because we need information from the EC-based extensions + * and certificate from the SNI callback triggered by the SNI extension.) + */ + got_common_suite = 0; + ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver]; + ciphersuite_info = NULL; +#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE) + for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 ) + { + for( i = 0; ciphersuites[i] != 0; i++ ) +#else + for( i = 0; ciphersuites[i] != 0; i++ ) + { + for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 ) +#endif + { + if( p[0] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) || + p[1] != ( ( ciphersuites[i] ) & 0xFF ) ) + continue; + + got_common_suite = 1; + + if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i], + &ciphersuite_info ) ) != 0 ) + return( ret ); + + if( ciphersuite_info != NULL ) + goto have_ciphersuite; + } + } + + if( got_common_suite ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, " + "but none of them usable" ) ); + mbedtls_ssl_send_fatal_handshake_failure( ssl ); + return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE ); + } + else + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) ); + mbedtls_ssl_send_fatal_handshake_failure( ssl ); + return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN ); + } + +have_ciphersuite: + MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) ); + + ssl->session_negotiate->ciphersuite = ciphersuites[i]; + ssl->transform_negotiate->ciphersuite_info = ciphersuite_info; + + ssl->state++; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + mbedtls_ssl_recv_flight_completed( ssl ); +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello" ) ); + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + + if( ssl->session_negotiate->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding truncated hmac extension" ) ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF ); + + *p++ = 0x00; + *p++ = 0x00; + + *olen = 4; +} +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + const mbedtls_ssl_ciphersuite_t *suite = NULL; + const mbedtls_cipher_info_t *cipher = NULL; + + if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_EXTENDED_MS_DISABLED || + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + *olen = 0; + return; + } + + /* + * RFC 7366: "If a server receives an encrypt-then-MAC request extension + * from a client and then selects a stream or Authenticated Encryption + * with Associated Data (AEAD) ciphersuite, it MUST NOT send an + * encrypt-then-MAC response extension back to the client." + */ + if( ( suite = mbedtls_ssl_ciphersuite_from_id( + ssl->session_negotiate->ciphersuite ) ) == NULL || + ( cipher = mbedtls_cipher_info_from_type( suite->cipher ) ) == NULL || + cipher->mode != MBEDTLS_MODE_CBC ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding encrypt then mac extension" ) ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC ) & 0xFF ); + + *p++ = 0x00; + *p++ = 0x00; + + *olen = 4; +} +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + + if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED || + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding extended master secret " + "extension" ) ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET ) & 0xFF ); + + *p++ = 0x00; + *p++ = 0x00; + + *olen = 4; +} +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + + if( ssl->handshake->new_session_ticket == 0 ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding session ticket extension" ) ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET ) & 0xFF ); + + *p++ = 0x00; + *p++ = 0x00; + + *olen = 4; +} +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + + if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, secure renegotiation extension" ) ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO ) & 0xFF ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) + { + *p++ = 0x00; + *p++ = ( ssl->verify_data_len * 2 + 1 ) & 0xFF; + *p++ = ssl->verify_data_len * 2 & 0xFF; + + memcpy( p, ssl->peer_verify_data, ssl->verify_data_len ); + p += ssl->verify_data_len; + memcpy( p, ssl->own_verify_data, ssl->verify_data_len ); + p += ssl->verify_data_len; + } + else +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + { + *p++ = 0x00; + *p++ = 0x01; + *p++ = 0x00; + } + + *olen = p - buf; +} + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + + if( ssl->session_negotiate->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, max_fragment_length extension" ) ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH ) & 0xFF ); + + *p++ = 0x00; + *p++ = 1; + + *p++ = ssl->session_negotiate->mfl_code; + + *olen = 5; +} +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + unsigned char *p = buf; + ((void) ssl); + + if( ( ssl->handshake->cli_exts & + MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT ) == 0 ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, supported_point_formats extension" ) ); + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS ) & 0xFF ); + + *p++ = 0x00; + *p++ = 2; + + *p++ = 1; + *p++ = MBEDTLS_ECP_PF_UNCOMPRESSED; + + *olen = 6; +} +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t *olen ) +{ + int ret; + unsigned char *p = buf; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + size_t kkpp_len; + + *olen = 0; + + /* Skip costly computation if not needed */ + if( ssl->transform_negotiate->ciphersuite_info->key_exchange != + MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + return; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, ecjpake kkpp extension" ) ); + + if( end - p < 4 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); + return; + } + + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP ) & 0xFF ); + + ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx, + p + 2, end - p - 2, &kkpp_len, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret ); + return; + } + + *p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( kkpp_len ) & 0xFF ); + + *olen = kkpp_len + 4; +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_ALPN ) +static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl, + unsigned char *buf, size_t *olen ) +{ + if( ssl->alpn_chosen == NULL ) + { + *olen = 0; + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding alpn extension" ) ); + + /* + * 0 . 1 ext identifier + * 2 . 3 ext length + * 4 . 5 protocol list length + * 6 . 6 protocol name length + * 7 . 7+n protocol name + */ + buf[0] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF ); + buf[1] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN ) & 0xFF ); + + *olen = 7 + strlen( ssl->alpn_chosen ); + + buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF ); + buf[3] = (unsigned char)( ( ( *olen - 4 ) ) & 0xFF ); + + buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF ); + buf[5] = (unsigned char)( ( ( *olen - 6 ) ) & 0xFF ); + + buf[6] = (unsigned char)( ( ( *olen - 7 ) ) & 0xFF ); + + memcpy( buf + 7, ssl->alpn_chosen, *olen - 7 ); +} +#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */ + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) +static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl ) +{ + int ret; + unsigned char *p = ssl->out_msg + 4; + unsigned char *cookie_len_byte; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello verify request" ) ); + + /* + * struct { + * ProtocolVersion server_version; + * opaque cookie<0..2^8-1>; + * } HelloVerifyRequest; + */ + + /* The RFC is not clear on this point, but sending the actual negotiated + * version looks like the most interoperable thing to do. */ + mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, + ssl->conf->transport, p ); + MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 ); + p += 2; + + /* If we get here, f_cookie_check is not null */ + if( ssl->conf->f_cookie_write == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "inconsistent cookie callbacks" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + /* Skip length byte until we know the length */ + cookie_len_byte = p++; + + if( ( ret = ssl->conf->f_cookie_write( ssl->conf->p_cookie, + &p, ssl->out_buf + MBEDTLS_SSL_BUFFER_LEN, + ssl->cli_id, ssl->cli_id_len ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "f_cookie_write", ret ); + return( ret ); + } + + *cookie_len_byte = (unsigned char)( p - ( cookie_len_byte + 1 ) ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "cookie sent", cookie_len_byte + 1, *cookie_len_byte ); + + ssl->out_msglen = p - ssl->out_msg; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST; + + ssl->state = MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello verify request" ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ + +static int ssl_write_server_hello( mbedtls_ssl_context *ssl ) +{ +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t t; +#endif + int ret; + size_t olen, ext_len = 0, n; + unsigned char *buf, *p; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello" ) ); + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake->verify_cookie_len != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "client hello was not authenticated" ) ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) ); + + return( ssl_write_hello_verify_request( ssl ) ); + } +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ + + if( ssl->conf->f_rng == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") ); + return( MBEDTLS_ERR_SSL_NO_RNG ); + } + + /* + * 0 . 0 handshake type + * 1 . 3 handshake length + * 4 . 5 protocol version + * 6 . 9 UNIX time() + * 10 . 37 random bytes + */ + buf = ssl->out_msg; + p = buf + 4; + + mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, + ssl->conf->transport, p ); + p += 2; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen version: [%d:%d]", + buf[4], buf[5] ) ); + +#if defined(MBEDTLS_HAVE_TIME) + t = mbedtls_time( NULL ); + *p++ = (unsigned char)( t >> 24 ); + *p++ = (unsigned char)( t >> 16 ); + *p++ = (unsigned char)( t >> 8 ); + *p++ = (unsigned char)( t ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) ); +#else + if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 ) + return( ret ); + + p += 4; +#endif /* MBEDTLS_HAVE_TIME */ + + if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 ) + return( ret ); + + p += 28; + + memcpy( ssl->handshake->randbytes + 32, buf + 6, 32 ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 6, 32 ); + + /* + * Resume is 0 by default, see ssl_handshake_init(). + * It may be already set to 1 by ssl_parse_session_ticket_ext(). + * If not, try looking up session ID in our cache. + */ + if( ssl->handshake->resume == 0 && +#if defined(MBEDTLS_SSL_RENEGOTIATION) + ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE && +#endif + ssl->session_negotiate->id_len != 0 && + ssl->conf->f_get_cache != NULL && + ssl->conf->f_get_cache( ssl->conf->p_cache, ssl->session_negotiate ) == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from cache" ) ); + ssl->handshake->resume = 1; + } + + if( ssl->handshake->resume == 0 ) + { + /* + * New session, create a new session id, + * unless we're about to issue a session ticket + */ + ssl->state++; + +#if defined(MBEDTLS_HAVE_TIME) + ssl->session_negotiate->start = mbedtls_time( NULL ); +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + if( ssl->handshake->new_session_ticket != 0 ) + { + ssl->session_negotiate->id_len = n = 0; + memset( ssl->session_negotiate->id, 0, 32 ); + } + else +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + { + ssl->session_negotiate->id_len = n = 32; + if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id, + n ) ) != 0 ) + return( ret ); + } + } + else + { + /* + * Resuming a session + */ + n = ssl->session_negotiate->id_len; + ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC; + + if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); + return( ret ); + } + } + + /* + * 38 . 38 session id length + * 39 . 38+n session id + * 39+n . 40+n chosen ciphersuite + * 41+n . 41+n chosen compression alg. + * 42+n . 43+n extensions length + * 44+n . 43+n+m extensions + */ + *p++ = (unsigned char) ssl->session_negotiate->id_len; + memcpy( p, ssl->session_negotiate->id, ssl->session_negotiate->id_len ); + p += ssl->session_negotiate->id_len; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) ); + MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, session id", buf + 39, n ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed", + ssl->handshake->resume ? "a" : "no" ) ); + + *p++ = (unsigned char)( ssl->session_negotiate->ciphersuite >> 8 ); + *p++ = (unsigned char)( ssl->session_negotiate->ciphersuite ); + *p++ = (unsigned char)( ssl->session_negotiate->compression ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s", + mbedtls_ssl_get_ciphersuite_name( ssl->session_negotiate->ciphersuite ) ) ); + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: 0x%02X", + ssl->session_negotiate->compression ) ); + + /* Do not write the extensions if the protocol is SSLv3 */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) ) + { +#endif + + /* + * First write extensions, then the total length + */ + ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + +#if defined(MBEDTLS_SSL_ALPN) + ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen ); + ext_len += olen; +#endif + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %d", ext_len ) ); + + if( ext_len > 0 ) + { + *p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF ); + *p++ = (unsigned char)( ( ext_len ) & 0xFF ); + p += ext_len; + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + } +#endif + + ssl->out_msglen = p - buf; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_HELLO; + + ret = mbedtls_ssl_write_record( ssl ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) ); + + return( ret ); +} + +#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) +{ + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) ); + ssl->state++; + return( 0 ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); +} +#else +static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + size_t dn_size, total_dn_size; /* excluding length bytes */ + size_t ct_len, sa_len; /* including length bytes */ + unsigned char *buf, *p; + const unsigned char * const end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + const mbedtls_x509_crt *crt; + int authmode; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) ); + + ssl->state++; + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + if( ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET ) + authmode = ssl->handshake->sni_authmode; + else +#endif + authmode = ssl->conf->authmode; + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE || + authmode == MBEDTLS_SSL_VERIFY_NONE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) ); + return( 0 ); + } + + /* + * 0 . 0 handshake type + * 1 . 3 handshake length + * 4 . 4 cert type count + * 5 .. m-1 cert types + * m .. m+1 sig alg length (TLS 1.2 only) + * m+1 .. n-1 SignatureAndHashAlgorithms (TLS 1.2 only) + * n .. n+1 length of all DNs + * n+2 .. n+3 length of DN 1 + * n+4 .. ... Distinguished Name #1 + * ... .. ... length of DN 2, etc. + */ + buf = ssl->out_msg; + p = buf + 4; + + /* + * Supported certificate types + * + * ClientCertificateType certificate_types<1..2^8-1>; + * enum { (255) } ClientCertificateType; + */ + ct_len = 0; + +#if defined(MBEDTLS_RSA_C) + p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_RSA_SIGN; +#endif +#if defined(MBEDTLS_ECDSA_C) + p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN; +#endif + + p[0] = (unsigned char) ct_len++; + p += ct_len; + + sa_len = 0; +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + /* + * Add signature_algorithms for verify (TLS 1.2) + * + * SignatureAndHashAlgorithm supported_signature_algorithms<2..2^16-2>; + * + * struct { + * HashAlgorithm hash; + * SignatureAlgorithm signature; + * } SignatureAndHashAlgorithm; + * + * enum { (255) } HashAlgorithm; + * enum { (255) } SignatureAlgorithm; + */ + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + const int *cur; + + /* + * Supported signature algorithms + */ + for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ ) + { + unsigned char hash = mbedtls_ssl_hash_from_md_alg( *cur ); + + if( MBEDTLS_SSL_HASH_NONE == hash || mbedtls_ssl_set_calc_verify_md( ssl, hash ) ) + continue; + +#if defined(MBEDTLS_RSA_C) + p[2 + sa_len++] = hash; + p[2 + sa_len++] = MBEDTLS_SSL_SIG_RSA; +#endif +#if defined(MBEDTLS_ECDSA_C) + p[2 + sa_len++] = hash; + p[2 + sa_len++] = MBEDTLS_SSL_SIG_ECDSA; +#endif + } + + p[0] = (unsigned char)( sa_len >> 8 ); + p[1] = (unsigned char)( sa_len ); + sa_len += 2; + p += sa_len; + } +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + + /* + * DistinguishedName certificate_authorities<0..2^16-1>; + * opaque DistinguishedName<1..2^16-1>; + */ + p += 2; +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + if( ssl->handshake->sni_ca_chain != NULL ) + crt = ssl->handshake->sni_ca_chain; + else +#endif + crt = ssl->conf->ca_chain; + + total_dn_size = 0; + while( crt != NULL && crt->version != 0 ) + { + dn_size = crt->subject_raw.len; + + if( end < p || + (size_t)( end - p ) < dn_size || + (size_t)( end - p ) < 2 + dn_size ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "skipping CAs: buffer too short" ) ); + break; + } + + *p++ = (unsigned char)( dn_size >> 8 ); + *p++ = (unsigned char)( dn_size ); + memcpy( p, crt->subject_raw.p, dn_size ); + p += dn_size; + + MBEDTLS_SSL_DEBUG_BUF( 3, "requested DN", p - dn_size, dn_size ); + + total_dn_size += 2 + dn_size; + crt = crt->next; + } + + ssl->out_msglen = p - buf; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE_REQUEST; + ssl->out_msg[4 + ct_len + sa_len] = (unsigned char)( total_dn_size >> 8 ); + ssl->out_msg[5 + ct_len + sa_len] = (unsigned char)( total_dn_size ); + + ret = mbedtls_ssl_write_record( ssl ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate request" ) ); + + return( ret ); +} +#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) +{ + int ret; + + if( ! mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECKEY ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) ); + return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); + } + + if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, + mbedtls_pk_ec( *mbedtls_ssl_own_key( ssl ) ), + MBEDTLS_ECDH_OURS ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret ); + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ + +static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl ) +{ + int ret; + size_t n = 0; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = + ssl->transform_negotiate->ciphersuite_info; + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + unsigned char *p = ssl->out_msg + 4; + unsigned char *dig_signed = p; + size_t dig_signed_len = 0, len; + ((void) dig_signed); + ((void) dig_signed_len); + ((void) len); +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server key exchange" ) ); + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) ); + ssl->state++; + return( 0 ); + } +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA ) + { + ssl_get_ecdh_params_from_cert( ssl ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) ); + ssl->state++; + return( 0 ); + } +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + size_t jlen; + const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN; + + ret = mbedtls_ecjpake_write_round_two( &ssl->handshake->ecjpake_ctx, + p, end - p, &jlen, ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret ); + return( ret ); + } + + p += jlen; + n += jlen; + } +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) + { + /* Note: we don't support identity hints, until someone asks + * for them. */ + *(p++) = 0x00; + *(p++) = 0x00; + + n += 2; + } +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) + { + if( ssl->conf->dhm_P.p == NULL || ssl->conf->dhm_G.p == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "no DH parameters set" ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + /* + * Ephemeral DH parameters: + * + * struct { + * opaque dh_p<1..2^16-1>; + * opaque dh_g<1..2^16-1>; + * opaque dh_Ys<1..2^16-1>; + * } ServerDHParams; + */ + if( ( ret = mbedtls_mpi_copy( &ssl->handshake->dhm_ctx.P, &ssl->conf->dhm_P ) ) != 0 || + ( ret = mbedtls_mpi_copy( &ssl->handshake->dhm_ctx.G, &ssl->conf->dhm_G ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_mpi_copy", ret ); + return( ret ); + } + + if( ( ret = mbedtls_dhm_make_params( &ssl->handshake->dhm_ctx, + (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ), + p, &len, ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_params", ret ); + return( ret ); + } + + dig_signed = p; + dig_signed_len = len; + + p += len; + n += len; + + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X ); + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P ); + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G ); + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX ); + } +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) + { + /* + * Ephemeral ECDH parameters: + * + * struct { + * ECParameters curve_params; + * ECPoint public; + * } ServerECDHParams; + */ + const mbedtls_ecp_curve_info **curve = NULL; + const mbedtls_ecp_group_id *gid; + + /* Match our preference list against the offered curves */ + for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ ) + for( curve = ssl->handshake->curves; *curve != NULL; curve++ ) + if( (*curve)->grp_id == *gid ) + goto curve_matching_done; + +curve_matching_done: + if( curve == NULL || *curve == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "no matching curve for ECDHE" ) ); + return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDHE curve: %s", (*curve)->name ) ); + + if( ( ret = mbedtls_ecp_group_load( &ssl->handshake->ecdh_ctx.grp, + (*curve)->grp_id ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecp_group_load", ret ); + return( ret ); + } + + if( ( ret = mbedtls_ecdh_make_params( &ssl->handshake->ecdh_ctx, &len, + p, MBEDTLS_SSL_MAX_CONTENT_LEN - n, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_params", ret ); + return( ret ); + } + + dig_signed = p; + dig_signed_len = len; + + p += len; + n += len; + + MBEDTLS_SSL_DEBUG_ECP( 3, "ECDH: Q ", &ssl->handshake->ecdh_ctx.Q ); + } +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) + { + size_t signature_len = 0; + unsigned int hashlen = 0; + unsigned char hash[64]; + mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE; + + /* + * Choose hash algorithm. NONE means MD5 + SHA1 here. + */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + md_alg = mbedtls_ssl_md_alg_from_hash( ssl->handshake->sig_alg ); + + if( md_alg == MBEDTLS_MD_NONE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( ciphersuite_info->key_exchange == + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) + { + md_alg = MBEDTLS_MD_SHA1; + } + else +#endif + { + md_alg = MBEDTLS_MD_NONE; + } + + /* + * Compute the hash to be signed + */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( md_alg == MBEDTLS_MD_NONE ) + { + mbedtls_md5_context mbedtls_md5; + mbedtls_sha1_context mbedtls_sha1; + + mbedtls_md5_init( &mbedtls_md5 ); + mbedtls_sha1_init( &mbedtls_sha1 ); + + /* + * digitally-signed struct { + * opaque md5_hash[16]; + * opaque sha_hash[20]; + * }; + * + * md5_hash + * MD5(ClientHello.random + ServerHello.random + * + ServerParams); + * sha_hash + * SHA(ClientHello.random + ServerHello.random + * + ServerParams); + */ + mbedtls_md5_starts( &mbedtls_md5 ); + mbedtls_md5_update( &mbedtls_md5, ssl->handshake->randbytes, 64 ); + mbedtls_md5_update( &mbedtls_md5, dig_signed, dig_signed_len ); + mbedtls_md5_finish( &mbedtls_md5, hash ); + + mbedtls_sha1_starts( &mbedtls_sha1 ); + mbedtls_sha1_update( &mbedtls_sha1, ssl->handshake->randbytes, 64 ); + mbedtls_sha1_update( &mbedtls_sha1, dig_signed, dig_signed_len ); + mbedtls_sha1_finish( &mbedtls_sha1, hash + 16 ); + + hashlen = 36; + + mbedtls_md5_free( &mbedtls_md5 ); + mbedtls_sha1_free( &mbedtls_sha1 ); + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ + MBEDTLS_SSL_PROTO_TLS1_1 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( md_alg != MBEDTLS_MD_NONE ) + { + mbedtls_md_context_t ctx; + const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg ); + + mbedtls_md_init( &ctx ); + + /* Info from md_alg will be used instead */ + hashlen = 0; + + /* + * digitally-signed struct { + * opaque client_random[32]; + * opaque server_random[32]; + * ServerDHParams params; + * }; + */ + if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret ); + return( ret ); + } + + mbedtls_md_starts( &ctx ); + mbedtls_md_update( &ctx, ssl->handshake->randbytes, 64 ); + mbedtls_md_update( &ctx, dig_signed, dig_signed_len ); + mbedtls_md_finish( &ctx, hash ); + mbedtls_md_free( &ctx ); + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ + MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen != 0 ? hashlen : + (unsigned int) ( mbedtls_md_get_size( mbedtls_md_info_from_type( md_alg ) ) ) ); + + /* + * Make the signature + */ + if( mbedtls_ssl_own_key( ssl ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key" ) ); + return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); + } + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + *(p++) = ssl->handshake->sig_alg; + *(p++) = mbedtls_ssl_sig_from_pk( mbedtls_ssl_own_key( ssl ) ); + + n += 2; + } +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + + if( ( ret = mbedtls_pk_sign( mbedtls_ssl_own_key( ssl ), md_alg, hash, hashlen, + p + 2 , &signature_len, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret ); + return( ret ); + } + + *(p++) = (unsigned char)( signature_len >> 8 ); + *(p++) = (unsigned char)( signature_len ); + n += 2; + + MBEDTLS_SSL_DEBUG_BUF( 3, "my signature", p, signature_len ); + + n += signature_len; + } +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || + MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ + + ssl->out_msglen = 4 + n; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE; + + ssl->state++; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange" ) ); + + return( 0 ); +} + +static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello done" ) ); + + ssl->out_msglen = 4; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_HELLO_DONE; + + ssl->state++; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + mbedtls_ssl_send_flight_completed( ssl ); +#endif + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello done" ) ); + + return( 0 ); +} + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) +static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char **p, + const unsigned char *end ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + size_t n; + + /* + * Receive G^Y mod P, premaster = (G^Y)^X mod P + */ + if( *p + 2 > end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + n = ( (*p)[0] << 8 ) | (*p)[1]; + *p += 2; + + if( *p + n > end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + if( ( ret = mbedtls_dhm_read_public( &ssl->handshake->dhm_ctx, *p, n ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_read_public", ret ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP ); + } + + *p += n; + + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY ); + + return( ret ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) +static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl, + const unsigned char *p, + const unsigned char *end, + size_t pms_offset ) +{ + int ret; + size_t len = mbedtls_pk_get_len( mbedtls_ssl_own_key( ssl ) ); + unsigned char *pms = ssl->handshake->premaster + pms_offset; + unsigned char ver[2]; + unsigned char fake_pms[48], peer_pms[48]; + unsigned char mask; + size_t i, peer_pmslen; + unsigned int diff; + + if( ! mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_RSA ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no RSA private key" ) ); + return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); + } + + /* + * Decrypt the premaster using own private RSA key + */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) + { + if( *p++ != ( ( len >> 8 ) & 0xFF ) || + *p++ != ( ( len ) & 0xFF ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + } +#endif + + if( p + len != end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + mbedtls_ssl_write_version( ssl->handshake->max_major_ver, + ssl->handshake->max_minor_ver, + ssl->conf->transport, ver ); + + /* + * Protection against Bleichenbacher's attack: invalid PKCS#1 v1.5 padding + * must not cause the connection to end immediately; instead, send a + * bad_record_mac later in the handshake. + * Also, avoid data-dependant branches here to protect against + * timing-based variants. + */ + ret = ssl->conf->f_rng( ssl->conf->p_rng, fake_pms, sizeof( fake_pms ) ); + if( ret != 0 ) + return( ret ); + + ret = mbedtls_pk_decrypt( mbedtls_ssl_own_key( ssl ), p, len, + peer_pms, &peer_pmslen, + sizeof( peer_pms ), + ssl->conf->f_rng, ssl->conf->p_rng ); + + diff = (unsigned int) ret; + diff |= peer_pmslen ^ 48; + diff |= peer_pms[0] ^ ver[0]; + diff |= peer_pms[1] ^ ver[1]; + +#if defined(MBEDTLS_SSL_DEBUG_ALL) + if( diff != 0 ) + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); +#endif + + if( sizeof( ssl->handshake->premaster ) < pms_offset || + sizeof( ssl->handshake->premaster ) - pms_offset < 48 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + ssl->handshake->pmslen = 48; + + /* mask = diff ? 0xff : 0x00 using bit operations to avoid branches */ + /* MSVC has a warning about unary minus on unsigned, but this is + * well-defined and precisely what we want to do here */ +#if defined(_MSC_VER) +#pragma warning( push ) +#pragma warning( disable : 4146 ) +#endif + mask = - ( ( diff | - diff ) >> ( sizeof( unsigned int ) * 8 - 1 ) ); +#if defined(_MSC_VER) +#pragma warning( pop ) +#endif + + for( i = 0; i < ssl->handshake->pmslen; i++ ) + pms[i] = ( mask & fake_pms[i] ) | ( (~mask) & peer_pms[i] ); + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) +static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned char **p, + const unsigned char *end ) +{ + int ret = 0; + size_t n; + + if( ssl->conf->f_psk == NULL && + ( ssl->conf->psk == NULL || ssl->conf->psk_identity == NULL || + ssl->conf->psk_identity_len == 0 || ssl->conf->psk_len == 0 ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no pre-shared key" ) ); + return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); + } + + /* + * Receive client pre-shared key identity name + */ + if( *p + 2 > end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + n = ( (*p)[0] << 8 ) | (*p)[1]; + *p += 2; + + if( n < 1 || n > 65535 || *p + n > end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + if( ssl->conf->f_psk != NULL ) + { + if( ssl->conf->f_psk( ssl->conf->p_psk, ssl, *p, n ) != 0 ) + ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY; + } + else + { + /* Identity is not a big secret since clients send it in the clear, + * but treat it carefully anyway, just in case */ + if( n != ssl->conf->psk_identity_len || + mbedtls_ssl_safer_memcmp( ssl->conf->psk_identity, *p, n ) != 0 ) + { + ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY; + } + } + + if( ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY ) + { + MBEDTLS_SSL_DEBUG_BUF( 3, "Unknown PSK identity", *p, n ); + if( ( ret = mbedtls_ssl_send_alert_message( ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY ) ) != 0 ) + { + return( ret ); + } + + return( MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY ); + } + + *p += n; + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) +{ + int ret; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info; + unsigned char *p, *end; + + ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client key exchange" ) ); + + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); + end = ssl->in_msg + ssl->in_hslen; + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA ) + { + if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret ); + return( ret ); + } + + if( p != end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx, + ssl->handshake->premaster, + MBEDTLS_PREMASTER_SIZE, + &ssl->handshake->pmslen, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS ); + } + + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA ) + { + if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx, + p, end - p) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP ); + } + + MBEDTLS_SSL_DEBUG_ECP( 3, "ECDH: Qp ", &ssl->handshake->ecdh_ctx.Qp ); + + if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, + &ssl->handshake->pmslen, + ssl->handshake->premaster, + MBEDTLS_MPI_MAX_SIZE, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS ); + } + + MBEDTLS_SSL_DEBUG_MPI( 3, "ECDH: z ", &ssl->handshake->ecdh_ctx.z ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ) + { + if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); + return( ret ); + } + + if( p != end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, + ciphersuite_info->key_exchange ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) + { + if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); + return( ret ); + } + + if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_encrypted_pms" ), ret ); + return( ret ); + } + + if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, + ciphersuite_info->key_exchange ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) + { + if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); + return( ret ); + } + if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret ); + return( ret ); + } + + if( p != end ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); + } + + if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, + ciphersuite_info->key_exchange ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) + { + if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); + return( ret ); + } + + if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx, + p, end - p ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret ); + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP ); + } + + MBEDTLS_SSL_DEBUG_ECP( 3, "ECDH: Qp ", &ssl->handshake->ecdh_ctx.Qp ); + + if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, + ciphersuite_info->key_exchange ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) + { + if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 0 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_parse_encrypted_pms_secret" ), ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx, + p, end - p ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret ); + return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); + } + + ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx, + ssl->handshake->premaster, 32, &ssl->handshake->pmslen, + ssl->conf->f_rng, ssl->conf->p_rng ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret ); + return( ret ); + } + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); + return( ret ); + } + + ssl->state++; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client key exchange" ) ); + + return( 0 ); +} + +#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) +{ + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) ); + ssl->state++; + return( 0 ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); +} +#else +static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + size_t i, sig_len; + unsigned char hash[48]; + unsigned char *hash_start = hash; + size_t hashlen; +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + mbedtls_pk_type_t pk_alg; +#endif + mbedtls_md_type_t md_alg; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE || + ssl->session_negotiate->peer_cert == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) ); + ssl->state++; + return( 0 ); + } + + /* Read the message without adding it to the checksum */ + do { + + if( ( ret = mbedtls_ssl_read_record_layer( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_read_record_layer" ), ret ); + return( ret ); + } + + ret = mbedtls_ssl_handle_message_type( ssl ); + + } while( MBEDTLS_ERR_SSL_NON_FATAL == ret ); + + if( 0 != ret ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_handle_message_type" ), ret ); + return( ret ); + } + + ssl->state++; + + /* Process the message contents */ + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE || + ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE_VERIFY ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); + } + + i = mbedtls_ssl_hs_hdr_len( ssl ); + + /* + * struct { + * SignatureAndHashAlgorithm algorithm; -- TLS 1.2 only + * opaque signature<0..2^16-1>; + * } DigitallySigned; + */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) + { + md_alg = MBEDTLS_MD_NONE; + hashlen = 36; + + /* For ECDSA, use SHA-1, not MD-5 + SHA-1 */ + if( mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk, + MBEDTLS_PK_ECDSA ) ) + { + hash_start += 16; + hashlen -= 16; + md_alg = MBEDTLS_MD_SHA1; + } + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || + MBEDTLS_SSL_PROTO_TLS1_1 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + if( i + 2 > ssl->in_hslen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); + } + + /* + * Hash + */ + md_alg = mbedtls_ssl_md_alg_from_hash( ssl->in_msg[i] ); + + if( md_alg == MBEDTLS_MD_NONE || mbedtls_ssl_set_calc_verify_md( ssl, ssl->in_msg[i] ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg" + " for verify message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); + } + +#if !defined(MBEDTLS_MD_SHA1) + if( MBEDTLS_MD_SHA1 == md_alg ) + hash_start += 16; +#endif + + /* Info from md_alg will be used instead */ + hashlen = 0; + + i++; + + /* + * Signature + */ + if( ( pk_alg = mbedtls_ssl_pk_alg_from_sig( ssl->in_msg[i] ) ) + == MBEDTLS_PK_NONE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg" + " for verify message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); + } + + /* + * Check the certificate's key type matches the signature alg + */ + if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk, pk_alg ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "sig_alg doesn't match cert key" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); + } + + i++; + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + if( i + 2 > ssl->in_hslen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); + } + + sig_len = ( ssl->in_msg[i] << 8 ) | ssl->in_msg[i+1]; + i += 2; + + if( i + sig_len != ssl->in_hslen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); + } + + /* Calculate hash and verify signature */ + ssl->handshake->calc_verify( ssl, hash ); + + if( ( ret = mbedtls_pk_verify( &ssl->session_negotiate->peer_cert->pk, + md_alg, hash_start, hashlen, + ssl->in_msg + i, sig_len ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret ); + return( ret ); + } + + mbedtls_ssl_update_handshake_status( ssl ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate verify" ) ); + + return( ret ); +} +#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED && + !MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +static int ssl_write_new_session_ticket( mbedtls_ssl_context *ssl ) +{ + int ret; + size_t tlen; + uint32_t lifetime; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write new session ticket" ) ); + + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_NEW_SESSION_TICKET; + + /* + * struct { + * uint32 ticket_lifetime_hint; + * opaque ticket<0..2^16-1>; + * } NewSessionTicket; + * + * 4 . 7 ticket_lifetime_hint (0 = unspecified) + * 8 . 9 ticket_len (n) + * 10 . 9+n ticket content + */ + + if( ( ret = ssl->conf->f_ticket_write( ssl->conf->p_ticket, + ssl->session_negotiate, + ssl->out_msg + 10, + ssl->out_msg + MBEDTLS_SSL_MAX_CONTENT_LEN, + &tlen, &lifetime ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_write", ret ); + tlen = 0; + } + + ssl->out_msg[4] = ( lifetime >> 24 ) & 0xFF; + ssl->out_msg[5] = ( lifetime >> 16 ) & 0xFF; + ssl->out_msg[6] = ( lifetime >> 8 ) & 0xFF; + ssl->out_msg[7] = ( lifetime ) & 0xFF; + + ssl->out_msg[8] = (unsigned char)( ( tlen >> 8 ) & 0xFF ); + ssl->out_msg[9] = (unsigned char)( ( tlen ) & 0xFF ); + + ssl->out_msglen = 10 + tlen; + + /* + * Morally equivalent to updating ssl->state, but NewSessionTicket and + * ChangeCipherSpec share the same state. + */ + ssl->handshake->new_session_ticket = 0; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write new session ticket" ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +/* + * SSL handshake -- server side -- single step + */ +int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl ) +{ + int ret = 0; + + if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "server state: %d", ssl->state ) ); + + if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) + return( ret ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) + { + if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) + return( ret ); + } +#endif + + switch( ssl->state ) + { + case MBEDTLS_SSL_HELLO_REQUEST: + ssl->state = MBEDTLS_SSL_CLIENT_HELLO; + break; + + /* + * <== ClientHello + */ + case MBEDTLS_SSL_CLIENT_HELLO: + ret = ssl_parse_client_hello( ssl ); + break; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + case MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT: + return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ); +#endif + + /* + * ==> ServerHello + * Certificate + * ( ServerKeyExchange ) + * ( CertificateRequest ) + * ServerHelloDone + */ + case MBEDTLS_SSL_SERVER_HELLO: + ret = ssl_write_server_hello( ssl ); + break; + + case MBEDTLS_SSL_SERVER_CERTIFICATE: + ret = mbedtls_ssl_write_certificate( ssl ); + break; + + case MBEDTLS_SSL_SERVER_KEY_EXCHANGE: + ret = ssl_write_server_key_exchange( ssl ); + break; + + case MBEDTLS_SSL_CERTIFICATE_REQUEST: + ret = ssl_write_certificate_request( ssl ); + break; + + case MBEDTLS_SSL_SERVER_HELLO_DONE: + ret = ssl_write_server_hello_done( ssl ); + break; + + /* + * <== ( Certificate/Alert ) + * ClientKeyExchange + * ( CertificateVerify ) + * ChangeCipherSpec + * Finished + */ + case MBEDTLS_SSL_CLIENT_CERTIFICATE: + ret = mbedtls_ssl_parse_certificate( ssl ); + break; + + case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE: + ret = ssl_parse_client_key_exchange( ssl ); + break; + + case MBEDTLS_SSL_CERTIFICATE_VERIFY: + ret = ssl_parse_certificate_verify( ssl ); + break; + + case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC: + ret = mbedtls_ssl_parse_change_cipher_spec( ssl ); + break; + + case MBEDTLS_SSL_CLIENT_FINISHED: + ret = mbedtls_ssl_parse_finished( ssl ); + break; + + /* + * ==> ( NewSessionTicket ) + * ChangeCipherSpec + * Finished + */ + case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC: +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + if( ssl->handshake->new_session_ticket != 0 ) + ret = ssl_write_new_session_ticket( ssl ); + else +#endif + ret = mbedtls_ssl_write_change_cipher_spec( ssl ); + break; + + case MBEDTLS_SSL_SERVER_FINISHED: + ret = mbedtls_ssl_write_finished( ssl ); + break; + + case MBEDTLS_SSL_FLUSH_BUFFERS: + MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) ); + ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; + break; + + case MBEDTLS_SSL_HANDSHAKE_WRAPUP: + mbedtls_ssl_handshake_wrapup( ssl ); + break; + + default: + MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + return( ret ); +} +#endif /* MBEDTLS_SSL_SRV_C */ diff --git a/mbedtls/ssl_ticket.c b/mbedtls/ssl_ticket.c new file mode 100644 index 0000000..4d9116d --- /dev/null +++ b/mbedtls/ssl_ticket.c @@ -0,0 +1,489 @@ +/* + * TLS server tickets callbacks implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SSL_TICKET_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include "mbedtls/ssl_ticket.h" + +#include + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Initialze context + */ +void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_ssl_ticket_context ) ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif +} + +#define MAX_KEY_BYTES 32 /* 256 bits */ + +/* + * Generate/update a key + */ +static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx, + unsigned char index ) +{ + int ret; + unsigned char buf[MAX_KEY_BYTES]; + mbedtls_ssl_ticket_key *key = ctx->keys + index; + +#if defined(MBEDTLS_HAVE_TIME) + key->generation_time = (uint32_t) mbedtls_time( NULL ); +#endif + + if( ( ret = ctx->f_rng( ctx->p_rng, key->name, sizeof( key->name ) ) ) != 0 ) + return( ret ); + + if( ( ret = ctx->f_rng( ctx->p_rng, buf, sizeof( buf ) ) ) != 0 ) + return( ret ); + + /* With GCM and CCM, same context can encrypt & decrypt */ + ret = mbedtls_cipher_setkey( &key->ctx, buf, + mbedtls_cipher_get_key_bitlen( &key->ctx ), + MBEDTLS_ENCRYPT ); + + mbedtls_zeroize( buf, sizeof( buf ) ); + + return( ret ); +} + +/* + * Rotate/generate keys if necessary + */ +static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx ) +{ +#if !defined(MBEDTLS_HAVE_TIME) + ((void) ctx); +#else + if( ctx->ticket_lifetime != 0 ) + { + uint32_t current_time = (uint32_t) mbedtls_time( NULL ); + uint32_t key_time = ctx->keys[ctx->active].generation_time; + + if( current_time > key_time && + current_time - key_time < ctx->ticket_lifetime ) + { + return( 0 ); + } + + ctx->active = 1 - ctx->active; + + return( ssl_ticket_gen_key( ctx, ctx->active ) ); + } + else +#endif /* MBEDTLS_HAVE_TIME */ + return( 0 ); +} + +/* + * Setup context for actual use + */ +int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, + mbedtls_cipher_type_t cipher, + uint32_t lifetime ) +{ + int ret; + const mbedtls_cipher_info_t *cipher_info; + + ctx->f_rng = f_rng; + ctx->p_rng = p_rng; + + ctx->ticket_lifetime = lifetime; + + cipher_info = mbedtls_cipher_info_from_type( cipher); + if( cipher_info == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( cipher_info->mode != MBEDTLS_MODE_GCM && + cipher_info->mode != MBEDTLS_MODE_CCM ) + { + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) ) != 0 || + ( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) ) != 0 ) + { + return( ret ); + } + + if( ( ret = ssl_ticket_gen_key( ctx, 0 ) ) != 0 || + ( ret = ssl_ticket_gen_key( ctx, 1 ) ) != 0 ) + { + return( ret ); + } + + return( 0 ); +} + +/* + * Serialize a session in the following format: + * 0 . n-1 session structure, n = sizeof(mbedtls_ssl_session) + * n . n+2 peer_cert length = m (0 if no certificate) + * n+3 . n+2+m peer cert ASN.1 + */ +static int ssl_save_session( const mbedtls_ssl_session *session, + unsigned char *buf, size_t buf_len, + size_t *olen ) +{ + unsigned char *p = buf; + size_t left = buf_len; +#if defined(MBEDTLS_X509_CRT_PARSE_C) + size_t cert_len; +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + if( left < sizeof( mbedtls_ssl_session ) ) + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + + memcpy( p, session, sizeof( mbedtls_ssl_session ) ); + p += sizeof( mbedtls_ssl_session ); + left -= sizeof( mbedtls_ssl_session ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + if( session->peer_cert == NULL ) + cert_len = 0; + else + cert_len = session->peer_cert->raw.len; + + if( left < 3 + cert_len ) + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + + *p++ = (unsigned char)( cert_len >> 16 & 0xFF ); + *p++ = (unsigned char)( cert_len >> 8 & 0xFF ); + *p++ = (unsigned char)( cert_len & 0xFF ); + + if( session->peer_cert != NULL ) + memcpy( p, session->peer_cert->raw.p, cert_len ); + + p += cert_len; +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + *olen = p - buf; + + return( 0 ); +} + +/* + * Unserialise session, see ssl_save_session() + */ +static int ssl_load_session( mbedtls_ssl_session *session, + const unsigned char *buf, size_t len ) +{ + const unsigned char *p = buf; + const unsigned char * const end = buf + len; +#if defined(MBEDTLS_X509_CRT_PARSE_C) + size_t cert_len; +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + if( p + sizeof( mbedtls_ssl_session ) > end ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + memcpy( session, p, sizeof( mbedtls_ssl_session ) ); + p += sizeof( mbedtls_ssl_session ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + if( p + 3 > end ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + cert_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2]; + p += 3; + + if( cert_len == 0 ) + { + session->peer_cert = NULL; + } + else + { + int ret; + + if( p + cert_len > end ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + session->peer_cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ); + + if( session->peer_cert == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + mbedtls_x509_crt_init( session->peer_cert ); + + if( ( ret = mbedtls_x509_crt_parse_der( session->peer_cert, + p, cert_len ) ) != 0 ) + { + mbedtls_x509_crt_free( session->peer_cert ); + mbedtls_free( session->peer_cert ); + session->peer_cert = NULL; + return( ret ); + } + + p += cert_len; + } +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + if( p != end ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + return( 0 ); +} + +/* + * Create session ticket, with the following structure: + * + * struct { + * opaque key_name[4]; + * opaque iv[12]; + * opaque encrypted_state<0..2^16-1>; + * opaque tag[16]; + * } ticket; + * + * The key_name, iv, and length of encrypted_state are the additional + * authenticated data. + */ +int mbedtls_ssl_ticket_write( void *p_ticket, + const mbedtls_ssl_session *session, + unsigned char *start, + const unsigned char *end, + size_t *tlen, + uint32_t *ticket_lifetime ) +{ + int ret; + mbedtls_ssl_ticket_context *ctx = p_ticket; + mbedtls_ssl_ticket_key *key; + unsigned char *key_name = start; + unsigned char *iv = start + 4; + unsigned char *state_len_bytes = iv + 12; + unsigned char *state = state_len_bytes + 2; + unsigned char *tag; + size_t clear_len, ciph_len; + + *tlen = 0; + + if( ctx == NULL || ctx->f_rng == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + /* We need at least 4 bytes for key_name, 12 for IV, 2 for len 16 for tag, + * in addition to session itself, that will be checked when writing it. */ + if( end - start < 4 + 12 + 2 + 16 ) + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 ) + goto cleanup; + + key = &ctx->keys[ctx->active]; + + *ticket_lifetime = ctx->ticket_lifetime; + + memcpy( key_name, key->name, 4 ); + + if( ( ret = ctx->f_rng( ctx->p_rng, iv, 12 ) ) != 0 ) + goto cleanup; + + /* Dump session state */ + if( ( ret = ssl_save_session( session, + state, end - state, &clear_len ) ) != 0 || + (unsigned long) clear_len > 65535 ) + { + goto cleanup; + } + state_len_bytes[0] = ( clear_len >> 8 ) & 0xff; + state_len_bytes[1] = ( clear_len ) & 0xff; + + /* Encrypt and authenticate */ + tag = state + clear_len; + if( ( ret = mbedtls_cipher_auth_encrypt( &key->ctx, + iv, 12, key_name, 4 + 12 + 2, + state, clear_len, state, &ciph_len, tag, 16 ) ) != 0 ) + { + goto cleanup; + } + if( ciph_len != clear_len ) + { + ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; + goto cleanup; + } + + *tlen = 4 + 12 + 2 + 16 + ciph_len; + +cleanup: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +/* + * Select key based on name + */ +static mbedtls_ssl_ticket_key *ssl_ticket_select_key( + mbedtls_ssl_ticket_context *ctx, + const unsigned char name[4] ) +{ + unsigned char i; + + for( i = 0; i < sizeof( ctx->keys ) / sizeof( *ctx->keys ); i++ ) + if( memcmp( name, ctx->keys[i].name, 4 ) == 0 ) + return( &ctx->keys[i] ); + + return( NULL ); +} + +/* + * Load session ticket (see mbedtls_ssl_ticket_write for structure) + */ +int mbedtls_ssl_ticket_parse( void *p_ticket, + mbedtls_ssl_session *session, + unsigned char *buf, + size_t len ) +{ + int ret; + mbedtls_ssl_ticket_context *ctx = p_ticket; + mbedtls_ssl_ticket_key *key; + unsigned char *key_name = buf; + unsigned char *iv = buf + 4; + unsigned char *enc_len_p = iv + 12; + unsigned char *ticket = enc_len_p + 2; + unsigned char *tag; + size_t enc_len, clear_len; + + if( ctx == NULL || ctx->f_rng == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + /* See mbedtls_ssl_ticket_write() */ + if( len < 4 + 12 + 2 + 16 ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 ) + goto cleanup; + + enc_len = ( enc_len_p[0] << 8 ) | enc_len_p[1]; + tag = ticket + enc_len; + + if( len != 4 + 12 + 2 + enc_len + 16 ) + { + ret = MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + goto cleanup; + } + + /* Select key */ + if( ( key = ssl_ticket_select_key( ctx, key_name ) ) == NULL ) + { + /* We can't know for sure but this is a likely option unless we're + * under attack - this is only informative anyway */ + ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED; + goto cleanup; + } + + /* Decrypt and authenticate */ + if( ( ret = mbedtls_cipher_auth_decrypt( &key->ctx, iv, 12, + key_name, 4 + 12 + 2, ticket, enc_len, + ticket, &clear_len, tag, 16 ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED ) + ret = MBEDTLS_ERR_SSL_INVALID_MAC; + + goto cleanup; + } + if( clear_len != enc_len ) + { + ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; + goto cleanup; + } + + /* Actually load session */ + if( ( ret = ssl_load_session( session, ticket, clear_len ) ) != 0 ) + goto cleanup; + +#if defined(MBEDTLS_HAVE_TIME) + { + /* Check for expiration */ + mbedtls_time_t current_time = mbedtls_time( NULL ); + + if( current_time < session->start || + (uint32_t)( current_time - session->start ) > ctx->ticket_lifetime ) + { + ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED; + goto cleanup; + } + } +#endif + +cleanup: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} + +/* + * Free context + */ +void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx ) +{ + mbedtls_cipher_free( &ctx->keys[0].ctx ); + mbedtls_cipher_free( &ctx->keys[1].ctx ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &ctx->mutex ); +#endif + + mbedtls_zeroize( ctx, sizeof( mbedtls_ssl_ticket_context ) ); +} + +#endif /* MBEDTLS_SSL_TICKET_C */ diff --git a/mbedtls/ssl_tls.c b/mbedtls/ssl_tls.c new file mode 100644 index 0000000..84a04ae --- /dev/null +++ b/mbedtls/ssl_tls.c @@ -0,0 +1,7679 @@ +/* + * SSLv3/TLSv1 shared functions + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The SSL 3.0 specification was drafted by Netscape in 1996, + * and became an IETF standard in 1999. + * + * http://wp.netscape.com/eng/ssl3/ + * http://www.ietf.org/rfc/rfc2246.txt + * http://www.ietf.org/rfc/rfc4346.txt + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SSL_TLS_C) + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +#include "mbedtls/debug.h" +#include "mbedtls/ssl.h" +#include "mbedtls/ssl_internal.h" + +#include + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +#include "mbedtls/oid.h" +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* Length of the "epoch" field in the record header */ +static inline size_t ssl_ep_len( const mbedtls_ssl_context *ssl ) +{ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + return( 2 ); +#else + ((void) ssl); +#endif + return( 0 ); +} + +/* + * Start a timer. + * Passing millisecs = 0 cancels a running timer. + */ +static void ssl_set_timer( mbedtls_ssl_context *ssl, uint32_t millisecs ) +{ + if( ssl->f_set_timer == NULL ) + return; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "set_timer to %d ms", (int) millisecs ) ); + ssl->f_set_timer( ssl->p_timer, millisecs / 4, millisecs ); +} + +/* + * Return -1 is timer is expired, 0 if it isn't. + */ +static int ssl_check_timer( mbedtls_ssl_context *ssl ) +{ + if( ssl->f_get_timer == NULL ) + return( 0 ); + + if( ssl->f_get_timer( ssl->p_timer ) == 2 ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "timer expired" ) ); + return( -1 ); + } + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +/* + * Double the retransmit timeout value, within the allowed range, + * returning -1 if the maximum value has already been reached. + */ +static int ssl_double_retransmit_timeout( mbedtls_ssl_context *ssl ) +{ + uint32_t new_timeout; + + if( ssl->handshake->retransmit_timeout >= ssl->conf->hs_timeout_max ) + return( -1 ); + + new_timeout = 2 * ssl->handshake->retransmit_timeout; + + /* Avoid arithmetic overflow and range overflow */ + if( new_timeout < ssl->handshake->retransmit_timeout || + new_timeout > ssl->conf->hs_timeout_max ) + { + new_timeout = ssl->conf->hs_timeout_max; + } + + ssl->handshake->retransmit_timeout = new_timeout; + MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs", + ssl->handshake->retransmit_timeout ) ); + + return( 0 ); +} + +static void ssl_reset_retransmit_timeout( mbedtls_ssl_context *ssl ) +{ + ssl->handshake->retransmit_timeout = ssl->conf->hs_timeout_min; + MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs", + ssl->handshake->retransmit_timeout ) ); +} +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +/* + * Convert max_fragment_length codes to length. + * RFC 6066 says: + * enum{ + * 2^9(1), 2^10(2), 2^11(3), 2^12(4), (255) + * } MaxFragmentLength; + * and we add 0 -> extension unused + */ +static unsigned int mfl_code_to_length[MBEDTLS_SSL_MAX_FRAG_LEN_INVALID] = +{ + MBEDTLS_SSL_MAX_CONTENT_LEN, /* MBEDTLS_SSL_MAX_FRAG_LEN_NONE */ + 512, /* MBEDTLS_SSL_MAX_FRAG_LEN_512 */ + 1024, /* MBEDTLS_SSL_MAX_FRAG_LEN_1024 */ + 2048, /* MBEDTLS_SSL_MAX_FRAG_LEN_2048 */ + 4096, /* MBEDTLS_SSL_MAX_FRAG_LEN_4096 */ +}; +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_CLI_C) +static int ssl_session_copy( mbedtls_ssl_session *dst, const mbedtls_ssl_session *src ) +{ + mbedtls_ssl_session_free( dst ); + memcpy( dst, src, sizeof( mbedtls_ssl_session ) ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + if( src->peer_cert != NULL ) + { + int ret; + + dst->peer_cert = mbedtls_calloc( 1, sizeof(mbedtls_x509_crt) ); + if( dst->peer_cert == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + mbedtls_x509_crt_init( dst->peer_cert ); + + if( ( ret = mbedtls_x509_crt_parse_der( dst->peer_cert, src->peer_cert->raw.p, + src->peer_cert->raw.len ) ) != 0 ) + { + mbedtls_free( dst->peer_cert ); + dst->peer_cert = NULL; + return( ret ); + } + } +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) + if( src->ticket != NULL ) + { + dst->ticket = mbedtls_calloc( 1, src->ticket_len ); + if( dst->ticket == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + memcpy( dst->ticket, src->ticket, src->ticket_len ); + } +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ + + return( 0 ); +} +#endif /* MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) +int (*mbedtls_ssl_hw_record_init)( mbedtls_ssl_context *ssl, + const unsigned char *key_enc, const unsigned char *key_dec, + size_t keylen, + const unsigned char *iv_enc, const unsigned char *iv_dec, + size_t ivlen, + const unsigned char *mac_enc, const unsigned char *mac_dec, + size_t maclen ) = NULL; +int (*mbedtls_ssl_hw_record_activate)( mbedtls_ssl_context *ssl, int direction) = NULL; +int (*mbedtls_ssl_hw_record_reset)( mbedtls_ssl_context *ssl ) = NULL; +int (*mbedtls_ssl_hw_record_write)( mbedtls_ssl_context *ssl ) = NULL; +int (*mbedtls_ssl_hw_record_read)( mbedtls_ssl_context *ssl ) = NULL; +int (*mbedtls_ssl_hw_record_finish)( mbedtls_ssl_context *ssl ) = NULL; +#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ + +/* + * Key material generation + */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) +static int ssl3_prf( const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen ) +{ + size_t i; + mbedtls_md5_context md5; + mbedtls_sha1_context sha1; + unsigned char padding[16]; + unsigned char sha1sum[20]; + ((void)label); + + mbedtls_md5_init( &md5 ); + mbedtls_sha1_init( &sha1 ); + + /* + * SSLv3: + * block = + * MD5( secret + SHA1( 'A' + secret + random ) ) + + * MD5( secret + SHA1( 'BB' + secret + random ) ) + + * MD5( secret + SHA1( 'CCC' + secret + random ) ) + + * ... + */ + for( i = 0; i < dlen / 16; i++ ) + { + memset( padding, (unsigned char) ('A' + i), 1 + i ); + + mbedtls_sha1_starts( &sha1 ); + mbedtls_sha1_update( &sha1, padding, 1 + i ); + mbedtls_sha1_update( &sha1, secret, slen ); + mbedtls_sha1_update( &sha1, random, rlen ); + mbedtls_sha1_finish( &sha1, sha1sum ); + + mbedtls_md5_starts( &md5 ); + mbedtls_md5_update( &md5, secret, slen ); + mbedtls_md5_update( &md5, sha1sum, 20 ); + mbedtls_md5_finish( &md5, dstbuf + i * 16 ); + } + + mbedtls_md5_free( &md5 ); + mbedtls_sha1_free( &sha1 ); + + mbedtls_zeroize( padding, sizeof( padding ) ); + mbedtls_zeroize( sha1sum, sizeof( sha1sum ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) +static int tls1_prf( const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen ) +{ + size_t nb, hs; + size_t i, j, k; + const unsigned char *S1, *S2; + unsigned char tmp[128]; + unsigned char h_i[20]; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + int ret; + + mbedtls_md_init( &md_ctx ); + + if( sizeof( tmp ) < 20 + strlen( label ) + rlen ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + hs = ( slen + 1 ) / 2; + S1 = secret; + S2 = secret + slen - hs; + + nb = strlen( label ); + memcpy( tmp + 20, label, nb ); + memcpy( tmp + 20 + nb, random, rlen ); + nb += rlen; + + /* + * First compute P_md5(secret,label+random)[0..dlen] + */ + if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ) ) == NULL ) + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) + return( ret ); + + mbedtls_md_hmac_starts( &md_ctx, S1, hs ); + mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb ); + mbedtls_md_hmac_finish( &md_ctx, 4 + tmp ); + + for( i = 0; i < dlen; i += 16 ) + { + mbedtls_md_hmac_reset ( &md_ctx ); + mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 + nb ); + mbedtls_md_hmac_finish( &md_ctx, h_i ); + + mbedtls_md_hmac_reset ( &md_ctx ); + mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 ); + mbedtls_md_hmac_finish( &md_ctx, 4 + tmp ); + + k = ( i + 16 > dlen ) ? dlen % 16 : 16; + + for( j = 0; j < k; j++ ) + dstbuf[i + j] = h_i[j]; + } + + mbedtls_md_free( &md_ctx ); + + /* + * XOR out with P_sha1(secret,label+random)[0..dlen] + */ + if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ) ) == NULL ) + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) + return( ret ); + + mbedtls_md_hmac_starts( &md_ctx, S2, hs ); + mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb ); + mbedtls_md_hmac_finish( &md_ctx, tmp ); + + for( i = 0; i < dlen; i += 20 ) + { + mbedtls_md_hmac_reset ( &md_ctx ); + mbedtls_md_hmac_update( &md_ctx, tmp, 20 + nb ); + mbedtls_md_hmac_finish( &md_ctx, h_i ); + + mbedtls_md_hmac_reset ( &md_ctx ); + mbedtls_md_hmac_update( &md_ctx, tmp, 20 ); + mbedtls_md_hmac_finish( &md_ctx, tmp ); + + k = ( i + 20 > dlen ) ? dlen % 20 : 20; + + for( j = 0; j < k; j++ ) + dstbuf[i + j] = (unsigned char)( dstbuf[i + j] ^ h_i[j] ); + } + + mbedtls_md_free( &md_ctx ); + + mbedtls_zeroize( tmp, sizeof( tmp ) ); + mbedtls_zeroize( h_i, sizeof( h_i ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_PROTO_TLS1) || MBEDTLS_SSL_PROTO_TLS1_1 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +static int tls_prf_generic( mbedtls_md_type_t md_type, + const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen ) +{ + size_t nb; + size_t i, j, k, md_len; + unsigned char tmp[128]; + unsigned char h_i[MBEDTLS_MD_MAX_SIZE]; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + int ret; + + mbedtls_md_init( &md_ctx ); + + if( ( md_info = mbedtls_md_info_from_type( md_type ) ) == NULL ) + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + + md_len = mbedtls_md_get_size( md_info ); + + if( sizeof( tmp ) < md_len + strlen( label ) + rlen ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + nb = strlen( label ); + memcpy( tmp + md_len, label, nb ); + memcpy( tmp + md_len + nb, random, rlen ); + nb += rlen; + + /* + * Compute P_(secret, label + random)[0..dlen] + */ + if ( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) + return( ret ); + + mbedtls_md_hmac_starts( &md_ctx, secret, slen ); + mbedtls_md_hmac_update( &md_ctx, tmp + md_len, nb ); + mbedtls_md_hmac_finish( &md_ctx, tmp ); + + for( i = 0; i < dlen; i += md_len ) + { + mbedtls_md_hmac_reset ( &md_ctx ); + mbedtls_md_hmac_update( &md_ctx, tmp, md_len + nb ); + mbedtls_md_hmac_finish( &md_ctx, h_i ); + + mbedtls_md_hmac_reset ( &md_ctx ); + mbedtls_md_hmac_update( &md_ctx, tmp, md_len ); + mbedtls_md_hmac_finish( &md_ctx, tmp ); + + k = ( i + md_len > dlen ) ? dlen % md_len : md_len; + + for( j = 0; j < k; j++ ) + dstbuf[i + j] = h_i[j]; + } + + mbedtls_md_free( &md_ctx ); + + mbedtls_zeroize( tmp, sizeof( tmp ) ); + mbedtls_zeroize( h_i, sizeof( h_i ) ); + + return( 0 ); +} + +#if defined(MBEDTLS_SHA256_C) +static int tls_prf_sha256( const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen ) +{ + return( tls_prf_generic( MBEDTLS_MD_SHA256, secret, slen, + label, random, rlen, dstbuf, dlen ) ); +} +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) +static int tls_prf_sha384( const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen ) +{ + return( tls_prf_generic( MBEDTLS_MD_SHA384, secret, slen, + label, random, rlen, dstbuf, dlen ) ); +} +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +static void ssl_update_checksum_start( mbedtls_ssl_context *, const unsigned char *, size_t ); + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) +static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *, const unsigned char *, size_t ); +#endif + +#if defined(MBEDTLS_SSL_PROTO_SSL3) +static void ssl_calc_verify_ssl( mbedtls_ssl_context *, unsigned char * ); +static void ssl_calc_finished_ssl( mbedtls_ssl_context *, unsigned char *, int ); +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) +static void ssl_calc_verify_tls( mbedtls_ssl_context *, unsigned char * ); +static void ssl_calc_finished_tls( mbedtls_ssl_context *, unsigned char *, int ); +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) +static void ssl_update_checksum_sha256( mbedtls_ssl_context *, const unsigned char *, size_t ); +static void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *,unsigned char * ); +static void ssl_calc_finished_tls_sha256( mbedtls_ssl_context *,unsigned char *, int ); +#endif + +#if defined(MBEDTLS_SHA512_C) +static void ssl_update_checksum_sha384( mbedtls_ssl_context *, const unsigned char *, size_t ); +static void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *, unsigned char * ); +static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *, int ); +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ) +{ + int ret = 0; + unsigned char tmp[64]; + unsigned char keyblk[256]; + unsigned char *key1; + unsigned char *key2; + unsigned char *mac_enc; + unsigned char *mac_dec; + size_t iv_copy_len; + const mbedtls_cipher_info_t *cipher_info; + const mbedtls_md_info_t *md_info; + + mbedtls_ssl_session *session = ssl->session_negotiate; + mbedtls_ssl_transform *transform = ssl->transform_negotiate; + mbedtls_ssl_handshake_params *handshake = ssl->handshake; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> derive keys" ) ); + + cipher_info = mbedtls_cipher_info_from_type( transform->ciphersuite_info->cipher ); + if( cipher_info == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %d not found", + transform->ciphersuite_info->cipher ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + md_info = mbedtls_md_info_from_type( transform->ciphersuite_info->mac ); + if( md_info == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %d not found", + transform->ciphersuite_info->mac ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + /* + * Set appropriate PRF function and other SSL / TLS / TLS1.2 functions + */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + handshake->tls_prf = ssl3_prf; + handshake->calc_verify = ssl_calc_verify_ssl; + handshake->calc_finished = ssl_calc_finished_ssl; + } + else +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) + { + handshake->tls_prf = tls1_prf; + handshake->calc_verify = ssl_calc_verify_tls; + handshake->calc_finished = ssl_calc_finished_tls; + } + else +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA512_C) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 && + transform->ciphersuite_info->mac == MBEDTLS_MD_SHA384 ) + { + handshake->tls_prf = tls_prf_sha384; + handshake->calc_verify = ssl_calc_verify_tls_sha384; + handshake->calc_finished = ssl_calc_finished_tls_sha384; + } + else +#endif +#if defined(MBEDTLS_SHA256_C) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + handshake->tls_prf = tls_prf_sha256; + handshake->calc_verify = ssl_calc_verify_tls_sha256; + handshake->calc_finished = ssl_calc_finished_tls_sha256; + } + else +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + /* + * SSLv3: + * master = + * MD5( premaster + SHA1( 'A' + premaster + randbytes ) ) + + * MD5( premaster + SHA1( 'BB' + premaster + randbytes ) ) + + * MD5( premaster + SHA1( 'CCC' + premaster + randbytes ) ) + * + * TLSv1+: + * master = PRF( premaster, "master secret", randbytes )[0..47] + */ + if( handshake->resume == 0 ) + { + MBEDTLS_SSL_DEBUG_BUF( 3, "premaster secret", handshake->premaster, + handshake->pmslen ); + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED ) + { + unsigned char session_hash[48]; + size_t hash_len; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "using extended master secret" ) ); + + ssl->handshake->calc_verify( ssl, session_hash ); + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { +#if defined(MBEDTLS_SHA512_C) + if( ssl->transform_negotiate->ciphersuite_info->mac == + MBEDTLS_MD_SHA384 ) + { + hash_len = 48; + } + else +#endif + hash_len = 32; + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + hash_len = 36; + + MBEDTLS_SSL_DEBUG_BUF( 3, "session hash", session_hash, hash_len ); + + ret = handshake->tls_prf( handshake->premaster, handshake->pmslen, + "extended master secret", + session_hash, hash_len, + session->master, 48 ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret ); + return( ret ); + } + + } + else +#endif + ret = handshake->tls_prf( handshake->premaster, handshake->pmslen, + "master secret", + handshake->randbytes, 64, + session->master, 48 ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret ); + return( ret ); + } + + mbedtls_zeroize( handshake->premaster, sizeof(handshake->premaster) ); + } + else + MBEDTLS_SSL_DEBUG_MSG( 3, ( "no premaster (session resumed)" ) ); + + /* + * Swap the client and server random values. + */ + memcpy( tmp, handshake->randbytes, 64 ); + memcpy( handshake->randbytes, tmp + 32, 32 ); + memcpy( handshake->randbytes + 32, tmp, 32 ); + mbedtls_zeroize( tmp, sizeof( tmp ) ); + + /* + * SSLv3: + * key block = + * MD5( master + SHA1( 'A' + master + randbytes ) ) + + * MD5( master + SHA1( 'BB' + master + randbytes ) ) + + * MD5( master + SHA1( 'CCC' + master + randbytes ) ) + + * MD5( master + SHA1( 'DDDD' + master + randbytes ) ) + + * ... + * + * TLSv1: + * key block = PRF( master, "key expansion", randbytes ) + */ + ret = handshake->tls_prf( session->master, 48, "key expansion", + handshake->randbytes, 64, keyblk, 256 ); + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite = %s", + mbedtls_ssl_get_ciphersuite_name( session->ciphersuite ) ) ); + MBEDTLS_SSL_DEBUG_BUF( 3, "master secret", session->master, 48 ); + MBEDTLS_SSL_DEBUG_BUF( 4, "random bytes", handshake->randbytes, 64 ); + MBEDTLS_SSL_DEBUG_BUF( 4, "key block", keyblk, 256 ); + + mbedtls_zeroize( handshake->randbytes, sizeof( handshake->randbytes ) ); + + /* + * Determine the appropriate key, IV and MAC length. + */ + + transform->keylen = cipher_info->key_bitlen / 8; + + if( cipher_info->mode == MBEDTLS_MODE_GCM || + cipher_info->mode == MBEDTLS_MODE_CCM ) + { + transform->maclen = 0; + + transform->ivlen = 12; + transform->fixed_ivlen = 4; + + /* Minimum length is expicit IV + tag */ + transform->minlen = transform->ivlen - transform->fixed_ivlen + + ( transform->ciphersuite_info->flags & + MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16 ); + } + else + { + /* Initialize HMAC contexts */ + if( ( ret = mbedtls_md_setup( &transform->md_ctx_enc, md_info, 1 ) ) != 0 || + ( ret = mbedtls_md_setup( &transform->md_ctx_dec, md_info, 1 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret ); + return( ret ); + } + + /* Get MAC length */ + transform->maclen = mbedtls_md_get_size( md_info ); + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + /* + * If HMAC is to be truncated, we shall keep the leftmost bytes, + * (rfc 6066 page 13 or rfc 2104 section 4), + * so we only need to adjust the length here. + */ + if( session->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED ) + transform->maclen = MBEDTLS_SSL_TRUNCATED_HMAC_LEN; +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + + /* IV length */ + transform->ivlen = cipher_info->iv_size; + + /* Minimum length */ + if( cipher_info->mode == MBEDTLS_MODE_STREAM ) + transform->minlen = transform->maclen; + else + { + /* + * GenericBlockCipher: + * 1. if EtM is in use: one block plus MAC + * otherwise: * first multiple of blocklen greater than maclen + * 2. IV except for SSL3 and TLS 1.0 + */ +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + if( session->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED ) + { + transform->minlen = transform->maclen + + cipher_info->block_size; + } + else +#endif + { + transform->minlen = transform->maclen + + cipher_info->block_size + - transform->maclen % cipher_info->block_size; + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_1 ) + ; /* No need to adjust minlen */ + else +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 || + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) + { + transform->minlen += transform->ivlen; + } + else +#endif + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + } + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "keylen: %d, minlen: %d, ivlen: %d, maclen: %d", + transform->keylen, transform->minlen, transform->ivlen, + transform->maclen ) ); + + /* + * Finally setup the cipher contexts, IVs and MAC secrets. + */ +#if defined(MBEDTLS_SSL_CLI_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + { + key1 = keyblk + transform->maclen * 2; + key2 = keyblk + transform->maclen * 2 + transform->keylen; + + mac_enc = keyblk; + mac_dec = keyblk + transform->maclen; + + /* + * This is not used in TLS v1.1. + */ + iv_copy_len = ( transform->fixed_ivlen ) ? + transform->fixed_ivlen : transform->ivlen; + memcpy( transform->iv_enc, key2 + transform->keylen, iv_copy_len ); + memcpy( transform->iv_dec, key2 + transform->keylen + iv_copy_len, + iv_copy_len ); + } + else +#endif /* MBEDTLS_SSL_CLI_C */ +#if defined(MBEDTLS_SSL_SRV_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + { + key1 = keyblk + transform->maclen * 2 + transform->keylen; + key2 = keyblk + transform->maclen * 2; + + mac_enc = keyblk + transform->maclen; + mac_dec = keyblk; + + /* + * This is not used in TLS v1.1. + */ + iv_copy_len = ( transform->fixed_ivlen ) ? + transform->fixed_ivlen : transform->ivlen; + memcpy( transform->iv_dec, key1 + transform->keylen, iv_copy_len ); + memcpy( transform->iv_enc, key1 + transform->keylen + iv_copy_len, + iv_copy_len ); + } + else +#endif /* MBEDTLS_SSL_SRV_C */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + if( transform->maclen > sizeof transform->mac_enc ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + memcpy( transform->mac_enc, mac_enc, transform->maclen ); + memcpy( transform->mac_dec, mac_dec, transform->maclen ); + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 ) + { + mbedtls_md_hmac_starts( &transform->md_ctx_enc, mac_enc, transform->maclen ); + mbedtls_md_hmac_starts( &transform->md_ctx_dec, mac_dec, transform->maclen ); + } + else +#endif + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_init != NULL ) + { + int ret = 0; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_init()" ) ); + + if( ( ret = mbedtls_ssl_hw_record_init( ssl, key1, key2, transform->keylen, + transform->iv_enc, transform->iv_dec, + iv_copy_len, + mac_enc, mac_dec, + transform->maclen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_init", ret ); + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } + } +#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ + +#if defined(MBEDTLS_SSL_EXPORT_KEYS) + if( ssl->conf->f_export_keys != NULL ) + { + ssl->conf->f_export_keys( ssl->conf->p_export_keys, + session->master, keyblk, + transform->maclen, transform->keylen, + iv_copy_len ); + } +#endif + + if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc, + cipher_info ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret ); + return( ret ); + } + + if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec, + cipher_info ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret ); + return( ret ); + } + + if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_enc, key1, + cipher_info->key_bitlen, + MBEDTLS_ENCRYPT ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret ); + return( ret ); + } + + if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_dec, key2, + cipher_info->key_bitlen, + MBEDTLS_DECRYPT ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret ); + return( ret ); + } + +#if defined(MBEDTLS_CIPHER_MODE_CBC) + if( cipher_info->mode == MBEDTLS_MODE_CBC ) + { + if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_enc, + MBEDTLS_PADDING_NONE ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret ); + return( ret ); + } + + if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_dec, + MBEDTLS_PADDING_NONE ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret ); + return( ret ); + } + } +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + + mbedtls_zeroize( keyblk, sizeof( keyblk ) ); + +#if defined(MBEDTLS_ZLIB_SUPPORT) + // Initialize compression + // + if( session->compression == MBEDTLS_SSL_COMPRESS_DEFLATE ) + { + if( ssl->compress_buf == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "Allocating compression buffer" ) ); + ssl->compress_buf = mbedtls_calloc( 1, MBEDTLS_SSL_BUFFER_LEN ); + if( ssl->compress_buf == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", + MBEDTLS_SSL_BUFFER_LEN ) ); + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "Initializing zlib states" ) ); + + memset( &transform->ctx_deflate, 0, sizeof( transform->ctx_deflate ) ); + memset( &transform->ctx_inflate, 0, sizeof( transform->ctx_inflate ) ); + + if( deflateInit( &transform->ctx_deflate, + Z_DEFAULT_COMPRESSION ) != Z_OK || + inflateInit( &transform->ctx_inflate ) != Z_OK ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to initialize compression" ) ); + return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED ); + } + } +#endif /* MBEDTLS_ZLIB_SUPPORT */ + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= derive keys" ) ); + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_PROTO_SSL3) +void ssl_calc_verify_ssl( mbedtls_ssl_context *ssl, unsigned char hash[36] ) +{ + mbedtls_md5_context md5; + mbedtls_sha1_context sha1; + unsigned char pad_1[48]; + unsigned char pad_2[48]; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify ssl" ) ); + + mbedtls_md5_init( &md5 ); + mbedtls_sha1_init( &sha1 ); + + mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); + mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + + memset( pad_1, 0x36, 48 ); + memset( pad_2, 0x5C, 48 ); + + mbedtls_md5_update( &md5, ssl->session_negotiate->master, 48 ); + mbedtls_md5_update( &md5, pad_1, 48 ); + mbedtls_md5_finish( &md5, hash ); + + mbedtls_md5_starts( &md5 ); + mbedtls_md5_update( &md5, ssl->session_negotiate->master, 48 ); + mbedtls_md5_update( &md5, pad_2, 48 ); + mbedtls_md5_update( &md5, hash, 16 ); + mbedtls_md5_finish( &md5, hash ); + + mbedtls_sha1_update( &sha1, ssl->session_negotiate->master, 48 ); + mbedtls_sha1_update( &sha1, pad_1, 40 ); + mbedtls_sha1_finish( &sha1, hash + 16 ); + + mbedtls_sha1_starts( &sha1 ); + mbedtls_sha1_update( &sha1, ssl->session_negotiate->master, 48 ); + mbedtls_sha1_update( &sha1, pad_2, 40 ); + mbedtls_sha1_update( &sha1, hash + 16, 20 ); + mbedtls_sha1_finish( &sha1, hash + 16 ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + + mbedtls_md5_free( &md5 ); + mbedtls_sha1_free( &sha1 ); + + return; +} +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) +void ssl_calc_verify_tls( mbedtls_ssl_context *ssl, unsigned char hash[36] ) +{ + mbedtls_md5_context md5; + mbedtls_sha1_context sha1; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify tls" ) ); + + mbedtls_md5_init( &md5 ); + mbedtls_sha1_init( &sha1 ); + + mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); + mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + + mbedtls_md5_finish( &md5, hash ); + mbedtls_sha1_finish( &sha1, hash + 16 ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + + mbedtls_md5_free( &md5 ); + mbedtls_sha1_free( &sha1 ); + + return; +} +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) +void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *ssl, unsigned char hash[32] ) +{ + mbedtls_sha256_context sha256; + + mbedtls_sha256_init( &sha256 ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha256" ) ); + + mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 ); + mbedtls_sha256_finish( &sha256, hash ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 32 ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + + mbedtls_sha256_free( &sha256 ); + + return; +} +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) +void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *ssl, unsigned char hash[48] ) +{ + mbedtls_sha512_context sha512; + + mbedtls_sha512_init( &sha512 ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha384" ) ); + + mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 ); + mbedtls_sha512_finish( &sha512, hash ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 48 ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + + mbedtls_sha512_free( &sha512 ); + + return; +} +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) +int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex ) +{ + unsigned char *p = ssl->handshake->premaster; + unsigned char *end = p + sizeof( ssl->handshake->premaster ); + const unsigned char *psk = ssl->conf->psk; + size_t psk_len = ssl->conf->psk_len; + + /* If the psk callback was called, use its result */ + if( ssl->handshake->psk != NULL ) + { + psk = ssl->handshake->psk; + psk_len = ssl->handshake->psk_len; + } + + /* + * PMS = struct { + * opaque other_secret<0..2^16-1>; + * opaque psk<0..2^16-1>; + * }; + * with "other_secret" depending on the particular key exchange + */ +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) + if( key_ex == MBEDTLS_KEY_EXCHANGE_PSK ) + { + if( end - p < 2 ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + *(p++) = (unsigned char)( psk_len >> 8 ); + *(p++) = (unsigned char)( psk_len ); + + if( end < p || (size_t)( end - p ) < psk_len ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + memset( p, 0, psk_len ); + p += psk_len; + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + if( key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) + { + /* + * other_secret already set by the ClientKeyExchange message, + * and is 48 bytes long + */ + *p++ = 0; + *p++ = 48; + p += 48; + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + if( key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) + { + int ret; + size_t len; + + /* Write length only when we know the actual value */ + if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx, + p + 2, end - ( p + 2 ), &len, + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret ); + return( ret ); + } + *(p++) = (unsigned char)( len >> 8 ); + *(p++) = (unsigned char)( len ); + p += len; + + MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) + if( key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) + { + int ret; + size_t zlen; + + if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, &zlen, + p + 2, end - ( p + 2 ), + ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret ); + return( ret ); + } + + *(p++) = (unsigned char)( zlen >> 8 ); + *(p++) = (unsigned char)( zlen ); + p += zlen; + + MBEDTLS_SSL_DEBUG_MPI( 3, "ECDH: z", &ssl->handshake->ecdh_ctx.z ); + } + else +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + /* opaque psk<0..2^16-1>; */ + if( end - p < 2 ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + *(p++) = (unsigned char)( psk_len >> 8 ); + *(p++) = (unsigned char)( psk_len ); + + if( end < p || (size_t)( end - p ) < psk_len ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + memcpy( p, psk, psk_len ); + p += psk_len; + + ssl->handshake->pmslen = p - ssl->handshake->premaster; + + return( 0 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#if defined(MBEDTLS_SSL_PROTO_SSL3) +/* + * SSLv3.0 MAC functions + */ +static void ssl_mac( mbedtls_md_context_t *md_ctx, unsigned char *secret, + unsigned char *buf, size_t len, + unsigned char *ctr, int type ) +{ + unsigned char header[11]; + unsigned char padding[48]; + int padlen; + int md_size = mbedtls_md_get_size( md_ctx->md_info ); + int md_type = mbedtls_md_get_type( md_ctx->md_info ); + + /* Only MD5 and SHA-1 supported */ + if( md_type == MBEDTLS_MD_MD5 ) + padlen = 48; + else + padlen = 40; + + memcpy( header, ctr, 8 ); + header[ 8] = (unsigned char) type; + header[ 9] = (unsigned char)( len >> 8 ); + header[10] = (unsigned char)( len ); + + memset( padding, 0x36, padlen ); + mbedtls_md_starts( md_ctx ); + mbedtls_md_update( md_ctx, secret, md_size ); + mbedtls_md_update( md_ctx, padding, padlen ); + mbedtls_md_update( md_ctx, header, 11 ); + mbedtls_md_update( md_ctx, buf, len ); + mbedtls_md_finish( md_ctx, buf + len ); + + memset( padding, 0x5C, padlen ); + mbedtls_md_starts( md_ctx ); + mbedtls_md_update( md_ctx, secret, md_size ); + mbedtls_md_update( md_ctx, padding, padlen ); + mbedtls_md_update( md_ctx, buf + len, md_size ); + mbedtls_md_finish( md_ctx, buf + len ); +} +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + +#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) || \ + ( defined(MBEDTLS_CIPHER_MODE_CBC) && \ + ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) ) ) +#define SSL_SOME_MODES_USE_MAC +#endif + +/* + * Encryption/decryption functions + */ +static int ssl_encrypt_buf( mbedtls_ssl_context *ssl ) +{ + mbedtls_cipher_mode_t mode; + int auth_done = 0; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> encrypt buf" ) ); + + if( ssl->session_out == NULL || ssl->transform_out == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "before encrypt: output payload", + ssl->out_msg, ssl->out_msglen ); + + /* + * Add MAC before if needed + */ +#if defined(SSL_SOME_MODES_USE_MAC) + if( mode == MBEDTLS_MODE_STREAM || + ( mode == MBEDTLS_MODE_CBC +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + && ssl->session_out->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED +#endif + ) ) + { +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + ssl_mac( &ssl->transform_out->md_ctx_enc, + ssl->transform_out->mac_enc, + ssl->out_msg, ssl->out_msglen, + ssl->out_ctr, ssl->out_msgtype ); + } + else +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 ) + { + mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_ctr, 8 ); + mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_hdr, 3 ); + mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_len, 2 ); + mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, + ssl->out_msg, ssl->out_msglen ); + mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, + ssl->out_msg + ssl->out_msglen ); + mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc ); + } + else +#endif + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_BUF( 4, "computed mac", + ssl->out_msg + ssl->out_msglen, + ssl->transform_out->maclen ); + + ssl->out_msglen += ssl->transform_out->maclen; + auth_done++; + } +#endif /* AEAD not the only option */ + + /* + * Encrypt + */ +#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) + if( mode == MBEDTLS_MODE_STREAM ) + { + int ret; + size_t olen = 0; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, " + "including %d bytes of padding", + ssl->out_msglen, 0 ) ); + + if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc, + ssl->transform_out->iv_enc, + ssl->transform_out->ivlen, + ssl->out_msg, ssl->out_msglen, + ssl->out_msg, &olen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); + return( ret ); + } + + if( ssl->out_msglen != olen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + } + else +#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */ +#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) + if( mode == MBEDTLS_MODE_GCM || + mode == MBEDTLS_MODE_CCM ) + { + int ret; + size_t enc_msglen, olen; + unsigned char *enc_msg; + unsigned char add_data[13]; + unsigned char taglen = ssl->transform_out->ciphersuite_info->flags & + MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16; + + memcpy( add_data, ssl->out_ctr, 8 ); + add_data[8] = ssl->out_msgtype; + mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, + ssl->conf->transport, add_data + 9 ); + add_data[11] = ( ssl->out_msglen >> 8 ) & 0xFF; + add_data[12] = ssl->out_msglen & 0xFF; + + MBEDTLS_SSL_DEBUG_BUF( 4, "additional data used for AEAD", + add_data, 13 ); + + /* + * Generate IV + */ + if( ssl->transform_out->ivlen - ssl->transform_out->fixed_ivlen != 8 ) + { + /* Reminder if we ever add an AEAD mode with a different size */ + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + memcpy( ssl->transform_out->iv_enc + ssl->transform_out->fixed_ivlen, + ssl->out_ctr, 8 ); + memcpy( ssl->out_iv, ssl->out_ctr, 8 ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "IV used", ssl->out_iv, + ssl->transform_out->ivlen - ssl->transform_out->fixed_ivlen ); + + /* + * Fix pointer positions and message length with added IV + */ + enc_msg = ssl->out_msg; + enc_msglen = ssl->out_msglen; + ssl->out_msglen += ssl->transform_out->ivlen - + ssl->transform_out->fixed_ivlen; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, " + "including %d bytes of padding", + ssl->out_msglen, 0 ) ); + + /* + * Encrypt and authenticate + */ + if( ( ret = mbedtls_cipher_auth_encrypt( &ssl->transform_out->cipher_ctx_enc, + ssl->transform_out->iv_enc, + ssl->transform_out->ivlen, + add_data, 13, + enc_msg, enc_msglen, + enc_msg, &olen, + enc_msg + enc_msglen, taglen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_encrypt", ret ); + return( ret ); + } + + if( olen != enc_msglen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + ssl->out_msglen += taglen; + auth_done++; + + MBEDTLS_SSL_DEBUG_BUF( 4, "after encrypt: tag", enc_msg + enc_msglen, taglen ); + } + else +#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */ +#if defined(MBEDTLS_CIPHER_MODE_CBC) && \ + ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) ) + if( mode == MBEDTLS_MODE_CBC ) + { + int ret; + unsigned char *enc_msg; + size_t enc_msglen, padlen, olen = 0, i; + + padlen = ssl->transform_out->ivlen - ( ssl->out_msglen + 1 ) % + ssl->transform_out->ivlen; + if( padlen == ssl->transform_out->ivlen ) + padlen = 0; + + for( i = 0; i <= padlen; i++ ) + ssl->out_msg[ssl->out_msglen + i] = (unsigned char) padlen; + + ssl->out_msglen += padlen + 1; + + enc_msglen = ssl->out_msglen; + enc_msg = ssl->out_msg; + +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) + /* + * Prepend per-record IV for block cipher in TLS v1.1 and up as per + * Method 1 (6.2.3.2. in RFC4346 and RFC5246) + */ + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) + { + /* + * Generate IV + */ + ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->transform_out->iv_enc, + ssl->transform_out->ivlen ); + if( ret != 0 ) + return( ret ); + + memcpy( ssl->out_iv, ssl->transform_out->iv_enc, + ssl->transform_out->ivlen ); + + /* + * Fix pointer positions and message length with added IV + */ + enc_msg = ssl->out_msg; + enc_msglen = ssl->out_msglen; + ssl->out_msglen += ssl->transform_out->ivlen; + } +#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */ + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, " + "including %d bytes of IV and %d bytes of padding", + ssl->out_msglen, ssl->transform_out->ivlen, + padlen + 1 ) ); + + if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc, + ssl->transform_out->iv_enc, + ssl->transform_out->ivlen, + enc_msg, enc_msglen, + enc_msg, &olen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); + return( ret ); + } + + if( enc_msglen != olen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) + if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 ) + { + /* + * Save IV in SSL3 and TLS1 + */ + memcpy( ssl->transform_out->iv_enc, + ssl->transform_out->cipher_ctx_enc.iv, + ssl->transform_out->ivlen ); + } +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + if( auth_done == 0 ) + { + /* + * MAC(MAC_write_key, seq_num + + * TLSCipherText.type + + * TLSCipherText.version + + * length_of( (IV +) ENC(...) ) + + * IV + // except for TLS 1.0 + * ENC(content + padding + padding_length)); + */ + unsigned char pseudo_hdr[13]; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) ); + + memcpy( pseudo_hdr + 0, ssl->out_ctr, 8 ); + memcpy( pseudo_hdr + 8, ssl->out_hdr, 3 ); + pseudo_hdr[11] = (unsigned char)( ( ssl->out_msglen >> 8 ) & 0xFF ); + pseudo_hdr[12] = (unsigned char)( ( ssl->out_msglen ) & 0xFF ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 ); + + mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, pseudo_hdr, 13 ); + mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, + ssl->out_iv, ssl->out_msglen ); + mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, + ssl->out_iv + ssl->out_msglen ); + mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc ); + + ssl->out_msglen += ssl->transform_out->maclen; + auth_done++; + } +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + } + else +#endif /* MBEDTLS_CIPHER_MODE_CBC && + ( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C ) */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + /* Make extra sure authentication was performed, exactly once */ + if( auth_done != 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= encrypt buf" ) ); + + return( 0 ); +} + +#define SSL_MAX_MAC_SIZE 48 + +static int ssl_decrypt_buf( mbedtls_ssl_context *ssl ) +{ + size_t i; + mbedtls_cipher_mode_t mode; + int auth_done = 0; +#if defined(SSL_SOME_MODES_USE_MAC) + size_t padlen = 0, correct = 1; +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decrypt buf" ) ); + + if( ssl->session_in == NULL || ssl->transform_in == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_in->cipher_ctx_dec ); + + if( ssl->in_msglen < ssl->transform_in->minlen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "in_msglen (%d) < minlen (%d)", + ssl->in_msglen, ssl->transform_in->minlen ) ); + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } + +#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) + if( mode == MBEDTLS_MODE_STREAM ) + { + int ret; + size_t olen = 0; + + padlen = 0; + + if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec, + ssl->transform_in->iv_dec, + ssl->transform_in->ivlen, + ssl->in_msg, ssl->in_msglen, + ssl->in_msg, &olen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); + return( ret ); + } + + if( ssl->in_msglen != olen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + } + else +#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */ +#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) + if( mode == MBEDTLS_MODE_GCM || + mode == MBEDTLS_MODE_CCM ) + { + int ret; + size_t dec_msglen, olen; + unsigned char *dec_msg; + unsigned char *dec_msg_result; + unsigned char add_data[13]; + unsigned char taglen = ssl->transform_in->ciphersuite_info->flags & + MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16; + size_t explicit_iv_len = ssl->transform_in->ivlen - + ssl->transform_in->fixed_ivlen; + + if( ssl->in_msglen < explicit_iv_len + taglen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < explicit_iv_len (%d) " + "+ taglen (%d)", ssl->in_msglen, + explicit_iv_len, taglen ) ); + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } + dec_msglen = ssl->in_msglen - explicit_iv_len - taglen; + + dec_msg = ssl->in_msg; + dec_msg_result = ssl->in_msg; + ssl->in_msglen = dec_msglen; + + memcpy( add_data, ssl->in_ctr, 8 ); + add_data[8] = ssl->in_msgtype; + mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, + ssl->conf->transport, add_data + 9 ); + add_data[11] = ( ssl->in_msglen >> 8 ) & 0xFF; + add_data[12] = ssl->in_msglen & 0xFF; + + MBEDTLS_SSL_DEBUG_BUF( 4, "additional data used for AEAD", + add_data, 13 ); + + memcpy( ssl->transform_in->iv_dec + ssl->transform_in->fixed_ivlen, + ssl->in_iv, + ssl->transform_in->ivlen - ssl->transform_in->fixed_ivlen ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "IV used", ssl->transform_in->iv_dec, + ssl->transform_in->ivlen ); + MBEDTLS_SSL_DEBUG_BUF( 4, "TAG used", dec_msg + dec_msglen, taglen ); + + /* + * Decrypt and authenticate + */ + if( ( ret = mbedtls_cipher_auth_decrypt( &ssl->transform_in->cipher_ctx_dec, + ssl->transform_in->iv_dec, + ssl->transform_in->ivlen, + add_data, 13, + dec_msg, dec_msglen, + dec_msg_result, &olen, + dec_msg + dec_msglen, taglen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_decrypt", ret ); + + if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED ) + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + + return( ret ); + } + auth_done++; + + if( olen != dec_msglen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + } + else +#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */ +#if defined(MBEDTLS_CIPHER_MODE_CBC) && \ + ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) ) + if( mode == MBEDTLS_MODE_CBC ) + { + /* + * Decrypt and check the padding + */ + int ret; + unsigned char *dec_msg; + unsigned char *dec_msg_result; + size_t dec_msglen; + size_t minlen = 0; + size_t olen = 0; + + /* + * Check immediate ciphertext sanity + */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) + minlen += ssl->transform_in->ivlen; +#endif + + if( ssl->in_msglen < minlen + ssl->transform_in->ivlen || + ssl->in_msglen < minlen + ssl->transform_in->maclen + 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < max( ivlen(%d), maclen (%d) " + "+ 1 ) ( + expl IV )", ssl->in_msglen, + ssl->transform_in->ivlen, + ssl->transform_in->maclen ) ); + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } + + dec_msglen = ssl->in_msglen; + dec_msg = ssl->in_msg; + dec_msg_result = ssl->in_msg; + + /* + * Authenticate before decrypt if enabled + */ +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + if( ssl->session_in->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED ) + { + unsigned char computed_mac[SSL_MAX_MAC_SIZE]; + unsigned char pseudo_hdr[13]; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) ); + + dec_msglen -= ssl->transform_in->maclen; + ssl->in_msglen -= ssl->transform_in->maclen; + + memcpy( pseudo_hdr + 0, ssl->in_ctr, 8 ); + memcpy( pseudo_hdr + 8, ssl->in_hdr, 3 ); + pseudo_hdr[11] = (unsigned char)( ( ssl->in_msglen >> 8 ) & 0xFF ); + pseudo_hdr[12] = (unsigned char)( ( ssl->in_msglen ) & 0xFF ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 ); + + mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, pseudo_hdr, 13 ); + mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, + ssl->in_iv, ssl->in_msglen ); + mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, computed_mac ); + mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "message mac", ssl->in_iv + ssl->in_msglen, + ssl->transform_in->maclen ); + MBEDTLS_SSL_DEBUG_BUF( 4, "computed mac", computed_mac, + ssl->transform_in->maclen ); + + if( mbedtls_ssl_safer_memcmp( ssl->in_iv + ssl->in_msglen, computed_mac, + ssl->transform_in->maclen ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) ); + + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } + auth_done++; + } +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + + /* + * Check length sanity + */ + if( ssl->in_msglen % ssl->transform_in->ivlen != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) %% ivlen (%d) != 0", + ssl->in_msglen, ssl->transform_in->ivlen ) ); + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } + +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) + /* + * Initialize for prepended IV for block cipher in TLS v1.1 and up + */ + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) + { + dec_msglen -= ssl->transform_in->ivlen; + ssl->in_msglen -= ssl->transform_in->ivlen; + + for( i = 0; i < ssl->transform_in->ivlen; i++ ) + ssl->transform_in->iv_dec[i] = ssl->in_iv[i]; + } +#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */ + + if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec, + ssl->transform_in->iv_dec, + ssl->transform_in->ivlen, + dec_msg, dec_msglen, + dec_msg_result, &olen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); + return( ret ); + } + + if( dec_msglen != olen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) + if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 ) + { + /* + * Save IV in SSL3 and TLS1 + */ + memcpy( ssl->transform_in->iv_dec, + ssl->transform_in->cipher_ctx_dec.iv, + ssl->transform_in->ivlen ); + } +#endif + + padlen = 1 + ssl->in_msg[ssl->in_msglen - 1]; + + if( ssl->in_msglen < ssl->transform_in->maclen + padlen && + auth_done == 0 ) + { +#if defined(MBEDTLS_SSL_DEBUG_ALL) + MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < maclen (%d) + padlen (%d)", + ssl->in_msglen, ssl->transform_in->maclen, padlen ) ); +#endif + padlen = 0; + correct = 0; + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + if( padlen > ssl->transform_in->ivlen ) + { +#if defined(MBEDTLS_SSL_DEBUG_ALL) + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding length: is %d, " + "should be no more than %d", + padlen, ssl->transform_in->ivlen ) ); +#endif + correct = 0; + } + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 ) + { + /* + * TLSv1+: always check the padding up to the first failure + * and fake check up to 256 bytes of padding + */ + size_t pad_count = 0, real_count = 1; + size_t padding_idx = ssl->in_msglen - padlen - 1; + + /* + * Padding is guaranteed to be incorrect if: + * 1. padlen >= ssl->in_msglen + * + * 2. padding_idx >= MBEDTLS_SSL_MAX_CONTENT_LEN + + * ssl->transform_in->maclen + * + * In both cases we reset padding_idx to a safe value (0) to + * prevent out-of-buffer reads. + */ + correct &= ( ssl->in_msglen >= padlen + 1 ); + correct &= ( padding_idx < MBEDTLS_SSL_MAX_CONTENT_LEN + + ssl->transform_in->maclen ); + + padding_idx *= correct; + + for( i = 1; i <= 256; i++ ) + { + real_count &= ( i <= padlen ); + pad_count += real_count * + ( ssl->in_msg[padding_idx + i] == padlen - 1 ); + } + + correct &= ( pad_count == padlen ); /* Only 1 on correct padding */ + +#if defined(MBEDTLS_SSL_DEBUG_ALL) + if( padlen > 0 && correct == 0 ) + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding byte detected" ) ); +#endif + padlen &= correct * 0x1FF; + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ + MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + ssl->in_msglen -= padlen; + } + else +#endif /* MBEDTLS_CIPHER_MODE_CBC && + ( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C ) */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_BUF( 4, "raw buffer after decryption", + ssl->in_msg, ssl->in_msglen ); + + /* + * Authenticate if not done yet. + * Compute the MAC regardless of the padding result (RFC4346, CBCTIME). + */ +#if defined(SSL_SOME_MODES_USE_MAC) + if( auth_done == 0 ) + { + unsigned char tmp[SSL_MAX_MAC_SIZE]; + + ssl->in_msglen -= ssl->transform_in->maclen; + + ssl->in_len[0] = (unsigned char)( ssl->in_msglen >> 8 ); + ssl->in_len[1] = (unsigned char)( ssl->in_msglen ); + + memcpy( tmp, ssl->in_msg + ssl->in_msglen, ssl->transform_in->maclen ); + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + ssl_mac( &ssl->transform_in->md_ctx_dec, + ssl->transform_in->mac_dec, + ssl->in_msg, ssl->in_msglen, + ssl->in_ctr, ssl->in_msgtype ); + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 ) + { + /* + * Process MAC and always update for padlen afterwards to make + * total time independent of padlen + * + * extra_run compensates MAC check for padlen + * + * Known timing attacks: + * - Lucky Thirteen (http://www.isg.rhul.ac.uk/tls/TLStiming.pdf) + * + * We use ( ( Lx + 8 ) / 64 ) to handle 'negative Lx' values + * correctly. (We round down instead of up, so -56 is the correct + * value for our calculations instead of -55) + */ + size_t j, extra_run = 0; + extra_run = ( 13 + ssl->in_msglen + padlen + 8 ) / 64 - + ( 13 + ssl->in_msglen + 8 ) / 64; + + extra_run &= correct * 0xFF; + + mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_ctr, 8 ); + mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_hdr, 3 ); + mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_len, 2 ); + mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_msg, + ssl->in_msglen ); + mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, + ssl->in_msg + ssl->in_msglen ); + /* Call mbedtls_md_process at least once due to cache attacks */ + for( j = 0; j < extra_run + 1; j++ ) + mbedtls_md_process( &ssl->transform_in->md_ctx_dec, ssl->in_msg ); + + mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec ); + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ + MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + MBEDTLS_SSL_DEBUG_BUF( 4, "message mac", tmp, ssl->transform_in->maclen ); + MBEDTLS_SSL_DEBUG_BUF( 4, "computed mac", ssl->in_msg + ssl->in_msglen, + ssl->transform_in->maclen ); + + if( mbedtls_ssl_safer_memcmp( tmp, ssl->in_msg + ssl->in_msglen, + ssl->transform_in->maclen ) != 0 ) + { +#if defined(MBEDTLS_SSL_DEBUG_ALL) + MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) ); +#endif + correct = 0; + } + auth_done++; + + /* + * Finally check the correct flag + */ + if( correct == 0 ) + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } +#endif /* SSL_SOME_MODES_USE_MAC */ + + /* Make extra sure authentication was performed, exactly once */ + if( auth_done != 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + if( ssl->in_msglen == 0 ) + { + ssl->nb_zero++; + + /* + * Three or more empty messages may be a DoS attack + * (excessive CPU consumption). + */ + if( ssl->nb_zero > 3 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "received four consecutive empty " + "messages, possible DoS attack" ) ); + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } + } + else + ssl->nb_zero = 0; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + ; /* in_ctr read from peer, not maintained internally */ + } + else +#endif + { + for( i = 8; i > ssl_ep_len( ssl ); i-- ) + if( ++ssl->in_ctr[i - 1] != 0 ) + break; + + /* The loop goes to its end iff the counter is wrapping */ + if( i == ssl_ep_len( ssl ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "incoming message counter would wrap" ) ); + return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); + } + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decrypt buf" ) ); + + return( 0 ); +} + +#undef MAC_NONE +#undef MAC_PLAINTEXT +#undef MAC_CIPHERTEXT + +#if defined(MBEDTLS_ZLIB_SUPPORT) +/* + * Compression/decompression functions + */ +static int ssl_compress_buf( mbedtls_ssl_context *ssl ) +{ + int ret; + unsigned char *msg_post = ssl->out_msg; + size_t len_pre = ssl->out_msglen; + unsigned char *msg_pre = ssl->compress_buf; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> compress buf" ) ); + + if( len_pre == 0 ) + return( 0 ); + + memcpy( msg_pre, ssl->out_msg, len_pre ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "before compression: msglen = %d, ", + ssl->out_msglen ) ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "before compression: output payload", + ssl->out_msg, ssl->out_msglen ); + + ssl->transform_out->ctx_deflate.next_in = msg_pre; + ssl->transform_out->ctx_deflate.avail_in = len_pre; + ssl->transform_out->ctx_deflate.next_out = msg_post; + ssl->transform_out->ctx_deflate.avail_out = MBEDTLS_SSL_BUFFER_LEN; + + ret = deflate( &ssl->transform_out->ctx_deflate, Z_SYNC_FLUSH ); + if( ret != Z_OK ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform compression (%d)", ret ) ); + return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED ); + } + + ssl->out_msglen = MBEDTLS_SSL_BUFFER_LEN - + ssl->transform_out->ctx_deflate.avail_out; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "after compression: msglen = %d, ", + ssl->out_msglen ) ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "after compression: output payload", + ssl->out_msg, ssl->out_msglen ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= compress buf" ) ); + + return( 0 ); +} + +static int ssl_decompress_buf( mbedtls_ssl_context *ssl ) +{ + int ret; + unsigned char *msg_post = ssl->in_msg; + size_t len_pre = ssl->in_msglen; + unsigned char *msg_pre = ssl->compress_buf; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decompress buf" ) ); + + if( len_pre == 0 ) + return( 0 ); + + memcpy( msg_pre, ssl->in_msg, len_pre ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "before decompression: msglen = %d, ", + ssl->in_msglen ) ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "before decompression: input payload", + ssl->in_msg, ssl->in_msglen ); + + ssl->transform_in->ctx_inflate.next_in = msg_pre; + ssl->transform_in->ctx_inflate.avail_in = len_pre; + ssl->transform_in->ctx_inflate.next_out = msg_post; + ssl->transform_in->ctx_inflate.avail_out = MBEDTLS_SSL_MAX_CONTENT_LEN; + + ret = inflate( &ssl->transform_in->ctx_inflate, Z_SYNC_FLUSH ); + if( ret != Z_OK ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform decompression (%d)", ret ) ); + return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED ); + } + + ssl->in_msglen = MBEDTLS_SSL_MAX_CONTENT_LEN - + ssl->transform_in->ctx_inflate.avail_out; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "after decompression: msglen = %d, ", + ssl->in_msglen ) ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "after decompression: input payload", + ssl->in_msg, ssl->in_msglen ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decompress buf" ) ); + + return( 0 ); +} +#endif /* MBEDTLS_ZLIB_SUPPORT */ + +#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) +static int ssl_write_hello_request( mbedtls_ssl_context *ssl ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +static int ssl_resend_hello_request( mbedtls_ssl_context *ssl ) +{ + /* If renegotiation is not enforced, retransmit until we would reach max + * timeout if we were using the usual handshake doubling scheme */ + if( ssl->conf->renego_max_records < 0 ) + { + uint32_t ratio = ssl->conf->hs_timeout_max / ssl->conf->hs_timeout_min + 1; + unsigned char doublings = 1; + + while( ratio != 0 ) + { + ++doublings; + ratio >>= 1; + } + + if( ++ssl->renego_records_seen > doublings ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "no longer retransmitting hello request" ) ); + return( 0 ); + } + } + + return( ssl_write_hello_request( ssl ) ); +} +#endif +#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */ + +/* + * Fill the input message buffer by appending data to it. + * The amount of data already fetched is in ssl->in_left. + * + * If we return 0, is it guaranteed that (at least) nb_want bytes are + * available (from this read and/or a previous one). Otherwise, an error code + * is returned (possibly EOF or WANT_READ). + * + * With stream transport (TLS) on success ssl->in_left == nb_want, but + * with datagram transport (DTLS) on success ssl->in_left >= nb_want, + * since we always read a whole datagram at once. + * + * For DTLS, it is up to the caller to set ssl->next_record_offset when + * they're done reading a record. + */ +int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want ) +{ + int ret; + size_t len; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> fetch input" ) ); + + if( ssl->f_recv == NULL && ssl->f_recv_timeout == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " + "or mbedtls_ssl_set_bio()" ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + if( nb_want > MBEDTLS_SSL_BUFFER_LEN - (size_t)( ssl->in_hdr - ssl->in_buf ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "requesting more data than fits" ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + uint32_t timeout; + + /* Just to be sure */ + if( ssl->f_set_timer == NULL || ssl->f_get_timer == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "You must use " + "mbedtls_ssl_set_timer_cb() for DTLS" ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + /* + * The point is, we need to always read a full datagram at once, so we + * sometimes read more then requested, and handle the additional data. + * It could be the rest of the current record (while fetching the + * header) and/or some other records in the same datagram. + */ + + /* + * Move to the next record in the already read datagram if applicable + */ + if( ssl->next_record_offset != 0 ) + { + if( ssl->in_left < ssl->next_record_offset ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + ssl->in_left -= ssl->next_record_offset; + + if( ssl->in_left != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "next record in same datagram, offset: %d", + ssl->next_record_offset ) ); + memmove( ssl->in_hdr, + ssl->in_hdr + ssl->next_record_offset, + ssl->in_left ); + } + + ssl->next_record_offset = 0; + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d", + ssl->in_left, nb_want ) ); + + /* + * Done if we already have enough data. + */ + if( nb_want <= ssl->in_left) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) ); + return( 0 ); + } + + /* + * A record can't be split accross datagrams. If we need to read but + * are not at the beginning of a new record, the caller did something + * wrong. + */ + if( ssl->in_left != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + /* + * Don't even try to read if time's out already. + * This avoids by-passing the timer when repeatedly receiving messages + * that will end up being dropped. + */ + if( ssl_check_timer( ssl ) != 0 ) + ret = MBEDTLS_ERR_SSL_TIMEOUT; + else + { + len = MBEDTLS_SSL_BUFFER_LEN - ( ssl->in_hdr - ssl->in_buf ); + + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) + timeout = ssl->handshake->retransmit_timeout; + else + timeout = ssl->conf->read_timeout; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "f_recv_timeout: %u ms", timeout ) ); + + if( ssl->f_recv_timeout != NULL ) + ret = ssl->f_recv_timeout( ssl->p_bio, ssl->in_hdr, len, + timeout ); + else + ret = ssl->f_recv( ssl->p_bio, ssl->in_hdr, len ); + + MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret ); + + if( ret == 0 ) + return( MBEDTLS_ERR_SSL_CONN_EOF ); + } + + if( ret == MBEDTLS_ERR_SSL_TIMEOUT ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "timeout" ) ); + ssl_set_timer( ssl, 0 ); + + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) + { + if( ssl_double_retransmit_timeout( ssl ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake timeout" ) ); + return( MBEDTLS_ERR_SSL_TIMEOUT ); + } + + if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret ); + return( ret ); + } + + return( MBEDTLS_ERR_SSL_WANT_READ ); + } +#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) + else if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) + { + if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret ); + return( ret ); + } + + return( MBEDTLS_ERR_SSL_WANT_READ ); + } +#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */ + } + + if( ret < 0 ) + return( ret ); + + ssl->in_left = ret; + } + else +#endif + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d", + ssl->in_left, nb_want ) ); + + while( ssl->in_left < nb_want ) + { + len = nb_want - ssl->in_left; + + if( ssl_check_timer( ssl ) != 0 ) + ret = MBEDTLS_ERR_SSL_TIMEOUT; + else + { + if( ssl->f_recv_timeout != NULL ) + { + ret = ssl->f_recv_timeout( ssl->p_bio, + ssl->in_hdr + ssl->in_left, len, + ssl->conf->read_timeout ); + } + else + { + ret = ssl->f_recv( ssl->p_bio, + ssl->in_hdr + ssl->in_left, len ); + } + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d", + ssl->in_left, nb_want ) ); + MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret ); + + if( ret == 0 ) + return( MBEDTLS_ERR_SSL_CONN_EOF ); + + if( ret < 0 ) + return( ret ); + + ssl->in_left += ret; + } + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) ); + + return( 0 ); +} + +/* + * Flush any data not yet written + */ +int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl ) +{ + int ret; + unsigned char *buf, i; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> flush output" ) ); + + if( ssl->f_send == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " + "or mbedtls_ssl_set_bio()" ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + /* Avoid incrementing counter if data is flushed */ + if( ssl->out_left == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) ); + return( 0 ); + } + + while( ssl->out_left > 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "message length: %d, out_left: %d", + mbedtls_ssl_hdr_len( ssl ) + ssl->out_msglen, ssl->out_left ) ); + + buf = ssl->out_hdr + mbedtls_ssl_hdr_len( ssl ) + + ssl->out_msglen - ssl->out_left; + ret = ssl->f_send( ssl->p_bio, buf, ssl->out_left ); + + MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_send", ret ); + + if( ret <= 0 ) + return( ret ); + + ssl->out_left -= ret; + } + + for( i = 8; i > ssl_ep_len( ssl ); i-- ) + if( ++ssl->out_ctr[i - 1] != 0 ) + break; + + /* The loop goes to its end iff the counter is wrapping */ + if( i == ssl_ep_len( ssl ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "outgoing message counter would wrap" ) ); + return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) ); + + return( 0 ); +} + +/* + * Functions to handle the DTLS retransmission state machine + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) +/* + * Append current handshake message to current outgoing flight + */ +static int ssl_flight_append( mbedtls_ssl_context *ssl ) +{ + mbedtls_ssl_flight_item *msg; + + /* Allocate space for current message */ + if( ( msg = mbedtls_calloc( 1, sizeof( mbedtls_ssl_flight_item ) ) ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed", + sizeof( mbedtls_ssl_flight_item ) ) ); + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + if( ( msg->p = mbedtls_calloc( 1, ssl->out_msglen ) ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed", ssl->out_msglen ) ); + mbedtls_free( msg ); + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + /* Copy current handshake message with headers */ + memcpy( msg->p, ssl->out_msg, ssl->out_msglen ); + msg->len = ssl->out_msglen; + msg->type = ssl->out_msgtype; + msg->next = NULL; + + /* Append to the current flight */ + if( ssl->handshake->flight == NULL ) + ssl->handshake->flight = msg; + else + { + mbedtls_ssl_flight_item *cur = ssl->handshake->flight; + while( cur->next != NULL ) + cur = cur->next; + cur->next = msg; + } + + return( 0 ); +} + +/* + * Free the current flight of handshake messages + */ +static void ssl_flight_free( mbedtls_ssl_flight_item *flight ) +{ + mbedtls_ssl_flight_item *cur = flight; + mbedtls_ssl_flight_item *next; + + while( cur != NULL ) + { + next = cur->next; + + mbedtls_free( cur->p ); + mbedtls_free( cur ); + + cur = next; + } +} + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl ); +#endif + +/* + * Swap transform_out and out_ctr with the alternative ones + */ +static void ssl_swap_epochs( mbedtls_ssl_context *ssl ) +{ + mbedtls_ssl_transform *tmp_transform; + unsigned char tmp_out_ctr[8]; + + if( ssl->transform_out == ssl->handshake->alt_transform_out ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip swap epochs" ) ); + return; + } + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "swap epochs" ) ); + + /* Swap transforms */ + tmp_transform = ssl->transform_out; + ssl->transform_out = ssl->handshake->alt_transform_out; + ssl->handshake->alt_transform_out = tmp_transform; + + /* Swap epoch + sequence_number */ + memcpy( tmp_out_ctr, ssl->out_ctr, 8 ); + memcpy( ssl->out_ctr, ssl->handshake->alt_out_ctr, 8 ); + memcpy( ssl->handshake->alt_out_ctr, tmp_out_ctr, 8 ); + + /* Adjust to the newly activated transform */ + if( ssl->transform_out != NULL && + ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) + { + ssl->out_msg = ssl->out_iv + ssl->transform_out->ivlen - + ssl->transform_out->fixed_ivlen; + } + else + ssl->out_msg = ssl->out_iv; + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_activate != NULL ) + { + if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret ); + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } + } +#endif +} + +/* + * Retransmit the current flight of messages. + * + * Need to remember the current message in case flush_output returns + * WANT_WRITE, causing us to exit this function and come back later. + * This function must be called until state is no longer SENDING. + */ +int mbedtls_ssl_resend( mbedtls_ssl_context *ssl ) +{ + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_resend" ) ); + + if( ssl->handshake->retransmit_state != MBEDTLS_SSL_RETRANS_SENDING ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialise resending" ) ); + + ssl->handshake->cur_msg = ssl->handshake->flight; + ssl_swap_epochs( ssl ); + + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_SENDING; + } + + while( ssl->handshake->cur_msg != NULL ) + { + int ret; + mbedtls_ssl_flight_item *cur = ssl->handshake->cur_msg; + + /* Swap epochs before sending Finished: we can't do it after + * sending ChangeCipherSpec, in case write returns WANT_READ. + * Must be done before copying, may change out_msg pointer */ + if( cur->type == MBEDTLS_SSL_MSG_HANDSHAKE && + cur->p[0] == MBEDTLS_SSL_HS_FINISHED ) + { + ssl_swap_epochs( ssl ); + } + + memcpy( ssl->out_msg, cur->p, cur->len ); + ssl->out_msglen = cur->len; + ssl->out_msgtype = cur->type; + + ssl->handshake->cur_msg = cur->next; + + MBEDTLS_SSL_DEBUG_BUF( 3, "resent handshake message header", ssl->out_msg, 12 ); + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + } + + if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED; + else + { + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING; + ssl_set_timer( ssl, ssl->handshake->retransmit_timeout ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_resend" ) ); + + return( 0 ); +} + +/* + * To be called when the last message of an incoming flight is received. + */ +void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl ) +{ + /* We won't need to resend that one any more */ + ssl_flight_free( ssl->handshake->flight ); + ssl->handshake->flight = NULL; + ssl->handshake->cur_msg = NULL; + + /* The next incoming flight will start with this msg_seq */ + ssl->handshake->in_flight_start_seq = ssl->handshake->in_msg_seq; + + /* Cancel timer */ + ssl_set_timer( ssl, 0 ); + + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && + ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED ) + { + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED; + } + else + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING; +} + +/* + * To be called when the last message of an outgoing flight is send. + */ +void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl ) +{ + ssl_reset_retransmit_timeout( ssl ); + ssl_set_timer( ssl, ssl->handshake->retransmit_timeout ); + + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && + ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED ) + { + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED; + } + else + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING; +} +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +/* + * Record layer functions + */ + +/* + * Write current record. + * Uses ssl->out_msgtype, ssl->out_msglen and bytes at ssl->out_msg. + */ +int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl ) +{ + int ret, done = 0, out_msg_type; + size_t len = ssl->out_msglen; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write record" ) ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake != NULL && + ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) + { + ; /* Skip special handshake treatment when resending */ + } + else +#endif + if( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) + { + out_msg_type = ssl->out_msg[0]; + + if( out_msg_type != MBEDTLS_SSL_HS_HELLO_REQUEST && + ssl->handshake == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + ssl->out_msg[1] = (unsigned char)( ( len - 4 ) >> 16 ); + ssl->out_msg[2] = (unsigned char)( ( len - 4 ) >> 8 ); + ssl->out_msg[3] = (unsigned char)( ( len - 4 ) ); + + /* + * DTLS has additional fields in the Handshake layer, + * between the length field and the actual payload: + * uint16 message_seq; + * uint24 fragment_offset; + * uint24 fragment_length; + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + /* Make room for the additional DTLS fields */ + memmove( ssl->out_msg + 12, ssl->out_msg + 4, len - 4 ); + ssl->out_msglen += 8; + len += 8; + + /* Write message_seq and update it, except for HelloRequest */ + if( out_msg_type != MBEDTLS_SSL_HS_HELLO_REQUEST ) + { + ssl->out_msg[4] = ( ssl->handshake->out_msg_seq >> 8 ) & 0xFF; + ssl->out_msg[5] = ( ssl->handshake->out_msg_seq ) & 0xFF; + ++( ssl->handshake->out_msg_seq ); + } + else + { + ssl->out_msg[4] = 0; + ssl->out_msg[5] = 0; + } + + /* We don't fragment, so frag_offset = 0 and frag_len = len */ + memset( ssl->out_msg + 6, 0x00, 3 ); + memcpy( ssl->out_msg + 9, ssl->out_msg + 1, 3 ); + } +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + if( out_msg_type != MBEDTLS_SSL_HS_HELLO_REQUEST ) + ssl->handshake->update_checksum( ssl, ssl->out_msg, len ); + } + + /* Save handshake and CCS messages for resending */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake != NULL && + ssl->handshake->retransmit_state != MBEDTLS_SSL_RETRANS_SENDING && + ( ssl->out_msgtype == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC || + ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) ) + { + if( ( ret = ssl_flight_append( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_flight_append", ret ); + return( ret ); + } + } +#endif + +#if defined(MBEDTLS_ZLIB_SUPPORT) + if( ssl->transform_out != NULL && + ssl->session_out->compression == MBEDTLS_SSL_COMPRESS_DEFLATE ) + { + if( ( ret = ssl_compress_buf( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_compress_buf", ret ); + return( ret ); + } + + len = ssl->out_msglen; + } +#endif /*MBEDTLS_ZLIB_SUPPORT */ + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_write != NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_write()" ) ); + + ret = mbedtls_ssl_hw_record_write( ssl ); + if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_write", ret ); + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } + + if( ret == 0 ) + done = 1; + } +#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ + if( !done ) + { + ssl->out_hdr[0] = (unsigned char) ssl->out_msgtype; + mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, + ssl->conf->transport, ssl->out_hdr + 1 ); + + ssl->out_len[0] = (unsigned char)( len >> 8 ); + ssl->out_len[1] = (unsigned char)( len ); + + if( ssl->transform_out != NULL ) + { + if( ( ret = ssl_encrypt_buf( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_encrypt_buf", ret ); + return( ret ); + } + + len = ssl->out_msglen; + ssl->out_len[0] = (unsigned char)( len >> 8 ); + ssl->out_len[1] = (unsigned char)( len ); + } + + ssl->out_left = mbedtls_ssl_hdr_len( ssl ) + ssl->out_msglen; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "output record: msgtype = %d, " + "version = [%d:%d], msglen = %d", + ssl->out_hdr[0], ssl->out_hdr[1], ssl->out_hdr[2], + ( ssl->out_len[0] << 8 ) | ssl->out_len[1] ) ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "output record sent to network", + ssl->out_hdr, mbedtls_ssl_hdr_len( ssl ) + ssl->out_msglen ); + } + + if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write record" ) ); + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +/* + * Mark bits in bitmask (used for DTLS HS reassembly) + */ +static void ssl_bitmask_set( unsigned char *mask, size_t offset, size_t len ) +{ + unsigned int start_bits, end_bits; + + start_bits = 8 - ( offset % 8 ); + if( start_bits != 8 ) + { + size_t first_byte_idx = offset / 8; + + /* Special case */ + if( len <= start_bits ) + { + for( ; len != 0; len-- ) + mask[first_byte_idx] |= 1 << ( start_bits - len ); + + /* Avoid potential issues with offset or len becoming invalid */ + return; + } + + offset += start_bits; /* Now offset % 8 == 0 */ + len -= start_bits; + + for( ; start_bits != 0; start_bits-- ) + mask[first_byte_idx] |= 1 << ( start_bits - 1 ); + } + + end_bits = len % 8; + if( end_bits != 0 ) + { + size_t last_byte_idx = ( offset + len ) / 8; + + len -= end_bits; /* Now len % 8 == 0 */ + + for( ; end_bits != 0; end_bits-- ) + mask[last_byte_idx] |= 1 << ( 8 - end_bits ); + } + + memset( mask + offset / 8, 0xFF, len / 8 ); +} + +/* + * Check that bitmask is full + */ +static int ssl_bitmask_check( unsigned char *mask, size_t len ) +{ + size_t i; + + for( i = 0; i < len / 8; i++ ) + if( mask[i] != 0xFF ) + return( -1 ); + + for( i = 0; i < len % 8; i++ ) + if( ( mask[len / 8] & ( 1 << ( 7 - i ) ) ) == 0 ) + return( -1 ); + + return( 0 ); +} + +/* + * Reassemble fragmented DTLS handshake messages. + * + * Use a temporary buffer for reassembly, divided in two parts: + * - the first holds the reassembled message (including handshake header), + * - the second holds a bitmask indicating which parts of the message + * (excluding headers) have been received so far. + */ +static int ssl_reassemble_dtls_handshake( mbedtls_ssl_context *ssl ) +{ + unsigned char *msg, *bitmask; + size_t frag_len, frag_off; + size_t msg_len = ssl->in_hslen - 12; /* Without headers */ + + if( ssl->handshake == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "not supported outside handshake (for now)" ) ); + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } + + /* + * For first fragment, check size and allocate buffer + */ + if( ssl->handshake->hs_msg == NULL ) + { + size_t alloc_len; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialize reassembly, total length = %d", + msg_len ) ); + + if( ssl->in_hslen > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too large" ) ); + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } + + /* The bitmask needs one bit per byte of message excluding header */ + alloc_len = 12 + msg_len + msg_len / 8 + ( msg_len % 8 != 0 ); + + ssl->handshake->hs_msg = mbedtls_calloc( 1, alloc_len ); + if( ssl->handshake->hs_msg == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc failed (%d bytes)", alloc_len ) ); + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + /* Prepare final header: copy msg_type, length and message_seq, + * then add standardised fragment_offset and fragment_length */ + memcpy( ssl->handshake->hs_msg, ssl->in_msg, 6 ); + memset( ssl->handshake->hs_msg + 6, 0, 3 ); + memcpy( ssl->handshake->hs_msg + 9, + ssl->handshake->hs_msg + 1, 3 ); + } + else + { + /* Make sure msg_type and length are consistent */ + if( memcmp( ssl->handshake->hs_msg, ssl->in_msg, 4 ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "fragment header mismatch" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + } + + msg = ssl->handshake->hs_msg + 12; + bitmask = msg + msg_len; + + /* + * Check and copy current fragment + */ + frag_off = ( ssl->in_msg[6] << 16 ) | + ( ssl->in_msg[7] << 8 ) | + ssl->in_msg[8]; + frag_len = ( ssl->in_msg[9] << 16 ) | + ( ssl->in_msg[10] << 8 ) | + ssl->in_msg[11]; + + if( frag_off + frag_len > msg_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid fragment offset/len: %d + %d > %d", + frag_off, frag_len, msg_len ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + + if( frag_len + 12 > ssl->in_msglen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid fragment length: %d + 12 > %d", + frag_len, ssl->in_msglen ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "adding fragment, offset = %d, length = %d", + frag_off, frag_len ) ); + + memcpy( msg + frag_off, ssl->in_msg + 12, frag_len ); + ssl_bitmask_set( bitmask, frag_off, frag_len ); + + /* + * Do we have the complete message by now? + * If yes, finalize it, else ask to read the next record. + */ + if( ssl_bitmask_check( bitmask, msg_len ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "message is not complete yet" ) ); + return( MBEDTLS_ERR_SSL_WANT_READ ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake message completed" ) ); + + if( frag_len + 12 < ssl->in_msglen ) + { + /* + * We'got more handshake messages in the same record. + * This case is not handled now because no know implementation does + * that and it's hard to test, so we prefer to fail cleanly for now. + */ + MBEDTLS_SSL_DEBUG_MSG( 1, ( "last fragment not alone in its record" ) ); + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } + + if( ssl->in_left > ssl->next_record_offset ) + { + /* + * We've got more data in the buffer after the current record, + * that we don't want to overwrite. Move it before writing the + * reassembled message, and adjust in_left and next_record_offset. + */ + unsigned char *cur_remain = ssl->in_hdr + ssl->next_record_offset; + unsigned char *new_remain = ssl->in_msg + ssl->in_hslen; + size_t remain_len = ssl->in_left - ssl->next_record_offset; + + /* First compute and check new lengths */ + ssl->next_record_offset = new_remain - ssl->in_hdr; + ssl->in_left = ssl->next_record_offset + remain_len; + + if( ssl->in_left > MBEDTLS_SSL_BUFFER_LEN - + (size_t)( ssl->in_hdr - ssl->in_buf ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "reassembled message too large for buffer" ) ); + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + } + + memmove( new_remain, cur_remain, remain_len ); + } + + memcpy( ssl->in_msg, ssl->handshake->hs_msg, ssl->in_hslen ); + + mbedtls_free( ssl->handshake->hs_msg ); + ssl->handshake->hs_msg = NULL; + + MBEDTLS_SSL_DEBUG_BUF( 3, "reassembled handshake message", + ssl->in_msg, ssl->in_hslen ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl ) +{ + if( ssl->in_msglen < mbedtls_ssl_hs_hdr_len( ssl ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too short: %d", + ssl->in_msglen ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + + ssl->in_hslen = mbedtls_ssl_hs_hdr_len( ssl ) + ( + ( ssl->in_msg[1] << 16 ) | + ( ssl->in_msg[2] << 8 ) | + ssl->in_msg[3] ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "handshake message: msglen =" + " %d, type = %d, hslen = %d", + ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + int ret; + unsigned int recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5]; + + /* ssl->handshake is NULL when receiving ClientHello for renego */ + if( ssl->handshake != NULL && + recv_msg_seq != ssl->handshake->in_msg_seq ) + { + /* Retransmit only on last message from previous flight, to avoid + * too many retransmissions. + * Besides, No sane server ever retransmits HelloVerifyRequest */ + if( recv_msg_seq == ssl->handshake->in_flight_start_seq - 1 && + ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "received message from last flight, " + "message_seq = %d, start_of_flight = %d", + recv_msg_seq, + ssl->handshake->in_flight_start_seq ) ); + + if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret ); + return( ret ); + } + } + else + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "dropping out-of-sequence message: " + "message_seq = %d, expected = %d", + recv_msg_seq, + ssl->handshake->in_msg_seq ) ); + } + + return( MBEDTLS_ERR_SSL_WANT_READ ); + } + /* Wait until message completion to increment in_msg_seq */ + + /* Reassemble if current message is fragmented or reassembly is + * already in progress */ + if( ssl->in_msglen < ssl->in_hslen || + memcmp( ssl->in_msg + 6, "\0\0\0", 3 ) != 0 || + memcmp( ssl->in_msg + 9, ssl->in_msg + 1, 3 ) != 0 || + ( ssl->handshake != NULL && ssl->handshake->hs_msg != NULL ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "found fragmented DTLS handshake message" ) ); + + if( ( ret = ssl_reassemble_dtls_handshake( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_reassemble_dtls_handshake", ret ); + return( ret ); + } + } + } + else +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + /* With TLS we don't handle fragmentation (for now) */ + if( ssl->in_msglen < ssl->in_hslen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLS handshake fragmentation not supported" ) ); + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + } + + return( 0 ); +} + +void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl ) +{ + + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER && + ssl->handshake != NULL ) + { + ssl->handshake->update_checksum( ssl, ssl->in_msg, ssl->in_hslen ); + } + + /* Handshake message is complete, increment counter */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake != NULL ) + { + ssl->handshake->in_msg_seq++; + } +#endif +} + +/* + * DTLS anti-replay: RFC 6347 4.1.2.6 + * + * in_window is a field of bits numbered from 0 (lsb) to 63 (msb). + * Bit n is set iff record number in_window_top - n has been seen. + * + * Usually, in_window_top is the last record number seen and the lsb of + * in_window is set. The only exception is the initial state (record number 0 + * not seen yet). + */ +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl ) +{ + ssl->in_window_top = 0; + ssl->in_window = 0; +} + +static inline uint64_t ssl_load_six_bytes( unsigned char *buf ) +{ + return( ( (uint64_t) buf[0] << 40 ) | + ( (uint64_t) buf[1] << 32 ) | + ( (uint64_t) buf[2] << 24 ) | + ( (uint64_t) buf[3] << 16 ) | + ( (uint64_t) buf[4] << 8 ) | + ( (uint64_t) buf[5] ) ); +} + +/* + * Return 0 if sequence number is acceptable, -1 otherwise + */ +int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context *ssl ) +{ + uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 ); + uint64_t bit; + + if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED ) + return( 0 ); + + if( rec_seqnum > ssl->in_window_top ) + return( 0 ); + + bit = ssl->in_window_top - rec_seqnum; + + if( bit >= 64 ) + return( -1 ); + + if( ( ssl->in_window & ( (uint64_t) 1 << bit ) ) != 0 ) + return( -1 ); + + return( 0 ); +} + +/* + * Update replay window on new validated record + */ +void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl ) +{ + uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 ); + + if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED ) + return; + + if( rec_seqnum > ssl->in_window_top ) + { + /* Update window_top and the contents of the window */ + uint64_t shift = rec_seqnum - ssl->in_window_top; + + if( shift >= 64 ) + ssl->in_window = 1; + else + { + ssl->in_window <<= shift; + ssl->in_window |= 1; + } + + ssl->in_window_top = rec_seqnum; + } + else + { + /* Mark that number as seen in the current window */ + uint64_t bit = ssl->in_window_top - rec_seqnum; + + if( bit < 64 ) /* Always true, but be extra sure */ + ssl->in_window |= (uint64_t) 1 << bit; + } +} +#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ + +#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) +/* Forward declaration */ +static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ); + +/* + * Without any SSL context, check if a datagram looks like a ClientHello with + * a valid cookie, and if it doesn't, generate a HelloVerifyRequest message. + * Both input and output include full DTLS headers. + * + * - if cookie is valid, return 0 + * - if ClientHello looks superficially valid but cookie is not, + * fill obuf and set olen, then + * return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED + * - otherwise return a specific error code + */ +static int ssl_check_dtls_clihlo_cookie( + mbedtls_ssl_cookie_write_t *f_cookie_write, + mbedtls_ssl_cookie_check_t *f_cookie_check, + void *p_cookie, + const unsigned char *cli_id, size_t cli_id_len, + const unsigned char *in, size_t in_len, + unsigned char *obuf, size_t buf_len, size_t *olen ) +{ + size_t sid_len, cookie_len; + unsigned char *p; + + if( f_cookie_write == NULL || f_cookie_check == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + /* + * Structure of ClientHello with record and handshake headers, + * and expected values. We don't need to check a lot, more checks will be + * done when actually parsing the ClientHello - skipping those checks + * avoids code duplication and does not make cookie forging any easier. + * + * 0-0 ContentType type; copied, must be handshake + * 1-2 ProtocolVersion version; copied + * 3-4 uint16 epoch; copied, must be 0 + * 5-10 uint48 sequence_number; copied + * 11-12 uint16 length; (ignored) + * + * 13-13 HandshakeType msg_type; (ignored) + * 14-16 uint24 length; (ignored) + * 17-18 uint16 message_seq; copied + * 19-21 uint24 fragment_offset; copied, must be 0 + * 22-24 uint24 fragment_length; (ignored) + * + * 25-26 ProtocolVersion client_version; (ignored) + * 27-58 Random random; (ignored) + * 59-xx SessionID session_id; 1 byte len + sid_len content + * 60+ opaque cookie<0..2^8-1>; 1 byte len + content + * ... + * + * Minimum length is 61 bytes. + */ + if( in_len < 61 || + in[0] != MBEDTLS_SSL_MSG_HANDSHAKE || + in[3] != 0 || in[4] != 0 || + in[19] != 0 || in[20] != 0 || in[21] != 0 ) + { + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + } + + sid_len = in[59]; + if( sid_len > in_len - 61 ) + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + + cookie_len = in[60 + sid_len]; + if( cookie_len > in_len - 60 ) + return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); + + if( f_cookie_check( p_cookie, in + sid_len + 61, cookie_len, + cli_id, cli_id_len ) == 0 ) + { + /* Valid cookie */ + return( 0 ); + } + + /* + * If we get here, we've got an invalid cookie, let's prepare HVR. + * + * 0-0 ContentType type; copied + * 1-2 ProtocolVersion version; copied + * 3-4 uint16 epoch; copied + * 5-10 uint48 sequence_number; copied + * 11-12 uint16 length; olen - 13 + * + * 13-13 HandshakeType msg_type; hello_verify_request + * 14-16 uint24 length; olen - 25 + * 17-18 uint16 message_seq; copied + * 19-21 uint24 fragment_offset; copied + * 22-24 uint24 fragment_length; olen - 25 + * + * 25-26 ProtocolVersion server_version; 0xfe 0xff + * 27-27 opaque cookie<0..2^8-1>; cookie_len = olen - 27, cookie + * + * Minimum length is 28. + */ + if( buf_len < 28 ) + return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + + /* Copy most fields and adapt others */ + memcpy( obuf, in, 25 ); + obuf[13] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST; + obuf[25] = 0xfe; + obuf[26] = 0xff; + + /* Generate and write actual cookie */ + p = obuf + 28; + if( f_cookie_write( p_cookie, + &p, obuf + buf_len, cli_id, cli_id_len ) != 0 ) + { + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + *olen = p - obuf; + + /* Go back and fill length fields */ + obuf[27] = (unsigned char)( *olen - 28 ); + + obuf[14] = obuf[22] = (unsigned char)( ( *olen - 25 ) >> 16 ); + obuf[15] = obuf[23] = (unsigned char)( ( *olen - 25 ) >> 8 ); + obuf[16] = obuf[24] = (unsigned char)( ( *olen - 25 ) ); + + obuf[11] = (unsigned char)( ( *olen - 13 ) >> 8 ); + obuf[12] = (unsigned char)( ( *olen - 13 ) ); + + return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ); +} + +/* + * Handle possible client reconnect with the same UDP quadruplet + * (RFC 6347 Section 4.2.8). + * + * Called by ssl_parse_record_header() in case we receive an epoch 0 record + * that looks like a ClientHello. + * + * - if the input looks like a ClientHello without cookies, + * send back HelloVerifyRequest, then + * return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED + * - if the input looks like a ClientHello with a valid cookie, + * reset the session of the current context, and + * return MBEDTLS_ERR_SSL_CLIENT_RECONNECT + * - if anything goes wrong, return a specific error code + * + * mbedtls_ssl_read_record() will ignore the record if anything else than + * MBEDTLS_ERR_SSL_CLIENT_RECONNECT or 0 is returned, although this function + * cannot not return 0. + */ +static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl ) +{ + int ret; + size_t len; + + ret = ssl_check_dtls_clihlo_cookie( + ssl->conf->f_cookie_write, + ssl->conf->f_cookie_check, + ssl->conf->p_cookie, + ssl->cli_id, ssl->cli_id_len, + ssl->in_buf, ssl->in_left, + ssl->out_buf, MBEDTLS_SSL_MAX_CONTENT_LEN, &len ); + + MBEDTLS_SSL_DEBUG_RET( 2, "ssl_check_dtls_clihlo_cookie", ret ); + + if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ) + { + /* Dont check write errors as we can't do anything here. + * If the error is permanent we'll catch it later, + * if it's not, then hopefully it'll work next time. */ + (void) ssl->f_send( ssl->p_bio, ssl->out_buf, len ); + + return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ); + } + + if( ret == 0 ) + { + /* Got a valid cookie, partially reset context */ + if( ( ret = ssl_session_reset_int( ssl, 1 ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "reset", ret ); + return( ret ); + } + + return( MBEDTLS_ERR_SSL_CLIENT_RECONNECT ); + } + + return( ret ); +} +#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */ + +/* + * ContentType type; + * ProtocolVersion version; + * uint16 epoch; // DTLS only + * uint48 sequence_number; // DTLS only + * uint16 length; + * + * Return 0 if header looks sane (and, for DTLS, the record is expected) + * MBEDTLS_ERR_SSL_INVALID_RECORD if the header looks bad, + * MBEDTLS_ERR_SSL_UNEXPECTED_RECORD (DTLS only) if sane but unexpected. + * + * With DTLS, mbedtls_ssl_read_record() will: + * 1. proceed with the record if this function returns 0 + * 2. drop only the current record if this function returns UNEXPECTED_RECORD + * 3. return CLIENT_RECONNECT if this function return that value + * 4. drop the whole datagram if this function returns anything else. + * Point 2 is needed when the peer is resending, and we have already received + * the first record from a datagram but are still waiting for the others. + */ +static int ssl_parse_record_header( mbedtls_ssl_context *ssl ) +{ + int ret; + int major_ver, minor_ver; + + MBEDTLS_SSL_DEBUG_BUF( 4, "input record header", ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) ); + + ssl->in_msgtype = ssl->in_hdr[0]; + ssl->in_msglen = ( ssl->in_len[0] << 8 ) | ssl->in_len[1]; + mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, ssl->in_hdr + 1 ); + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "input record: msgtype = %d, " + "version = [%d:%d], msglen = %d", + ssl->in_msgtype, + major_ver, minor_ver, ssl->in_msglen ) ); + + /* Check record type */ + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE && + ssl->in_msgtype != MBEDTLS_SSL_MSG_ALERT && + ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC && + ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type" ) ); + + if( ( ret = mbedtls_ssl_send_alert_message( ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ) ) != 0 ) + { + return( ret ); + } + + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + + /* Check version */ + if( major_ver != ssl->major_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + + if( minor_ver > ssl->conf->max_minor_ver ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + + /* Check length against the size of our buffer */ + if( ssl->in_msglen > MBEDTLS_SSL_BUFFER_LEN + - (size_t)( ssl->in_msg - ssl->in_buf ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + + /* Check length against bounds of the current transform and version */ + if( ssl->transform_in == NULL ) + { + if( ssl->in_msglen < 1 || + ssl->in_msglen > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + } + else + { + if( ssl->in_msglen < ssl->transform_in->minlen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 && + ssl->in_msglen > ssl->transform_in->minlen + MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + /* + * TLS encrypted messages can have up to 256 bytes of padding + */ + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 && + ssl->in_msglen > ssl->transform_in->minlen + + MBEDTLS_SSL_MAX_CONTENT_LEN + 256 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } +#endif + } + + /* + * DTLS-related tests done last, because most of them may result in + * silently dropping the record (but not the whole datagram), and we only + * want to consider that after ensuring that the "basic" fields (type, + * version, length) are sane. + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + unsigned int rec_epoch = ( ssl->in_ctr[0] << 8 ) | ssl->in_ctr[1]; + + /* Drop unexpected ChangeCipherSpec messages */ + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC && + ssl->state != MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC && + ssl->state != MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping unexpected ChangeCipherSpec" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); + } + + /* Drop unexpected ApplicationData records, + * except at the beginning of renegotiations */ + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA && + ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER +#if defined(MBEDTLS_SSL_RENEGOTIATION) + && ! ( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && + ssl->state == MBEDTLS_SSL_SERVER_HELLO ) +#endif + ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping unexpected ApplicationData" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); + } + + /* Check epoch (and sequence number) with DTLS */ + if( rec_epoch != ssl->in_epoch ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "record from another epoch: " + "expected %d, received %d", + ssl->in_epoch, rec_epoch ) ); + +#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) + /* + * Check for an epoch 0 ClientHello. We can't use in_msg here to + * access the first byte of record content (handshake type), as we + * have an active transform (possibly iv_len != 0), so use the + * fact that the record header len is 13 instead. + */ + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER && + rec_epoch == 0 && + ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && + ssl->in_left > 13 && + ssl->in_buf[13] == MBEDTLS_SSL_HS_CLIENT_HELLO ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "possible client reconnect " + "from the same port" ) ); + return( ssl_handle_possible_reconnect( ssl ) ); + } + else +#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */ + return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); + } + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + /* Replay detection only works for the current epoch */ + if( rec_epoch == ssl->in_epoch && + mbedtls_ssl_dtls_replay_check( ssl ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); + } +#endif + } +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + return( 0 ); +} + +/* + * If applicable, decrypt (and decompress) record content + */ +static int ssl_prepare_record_content( mbedtls_ssl_context *ssl ) +{ + int ret, done = 0; + + MBEDTLS_SSL_DEBUG_BUF( 4, "input record from network", + ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen ); + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_read != NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_read()" ) ); + + ret = mbedtls_ssl_hw_record_read( ssl ); + if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_read", ret ); + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } + + if( ret == 0 ) + done = 1; + } +#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ + if( !done && ssl->transform_in != NULL ) + { + if( ( ret = ssl_decrypt_buf( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decrypt_buf", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_BUF( 4, "input payload after decrypt", + ssl->in_msg, ssl->in_msglen ); + + if( ssl->in_msglen > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); + return( MBEDTLS_ERR_SSL_INVALID_RECORD ); + } + } + +#if defined(MBEDTLS_ZLIB_SUPPORT) + if( ssl->transform_in != NULL && + ssl->session_in->compression == MBEDTLS_SSL_COMPRESS_DEFLATE ) + { + if( ( ret = ssl_decompress_buf( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decompress_buf", ret ); + return( ret ); + } + } +#endif /* MBEDTLS_ZLIB_SUPPORT */ + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + mbedtls_ssl_dtls_replay_update( ssl ); + } +#endif + + return( 0 ); +} + +static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl ); + +/* + * Read a record. + * + * Silently ignore non-fatal alert (and for DTLS, invalid records as well, + * RFC 6347 4.1.2.7) and continue reading until a valid record is found. + * + */ +int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read record" ) ); + + do { + + if( ( ret = mbedtls_ssl_read_record_layer( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_read_record_layer" ), ret ); + return( ret ); + } + + ret = mbedtls_ssl_handle_message_type( ssl ); + + } while( MBEDTLS_ERR_SSL_NON_FATAL == ret ); + + if( 0 != ret ) + { + MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_handle_message_type" ), ret ); + return( ret ); + } + + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) + { + mbedtls_ssl_update_handshake_status( ssl ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read record" ) ); + + return( 0 ); +} + +int mbedtls_ssl_read_record_layer( mbedtls_ssl_context *ssl ) +{ + int ret; + + if( ssl->in_hslen != 0 && ssl->in_hslen < ssl->in_msglen ) + { + /* + * Get next Handshake message in the current record + */ + ssl->in_msglen -= ssl->in_hslen; + + memmove( ssl->in_msg, ssl->in_msg + ssl->in_hslen, + ssl->in_msglen ); + + MBEDTLS_SSL_DEBUG_BUF( 4, "remaining content in record", + ssl->in_msg, ssl->in_msglen ); + + return( 0 ); + } + + ssl->in_hslen = 0; + + /* + * Read the record header and parse it + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) +read_record_header: +#endif + + if( ( ret = mbedtls_ssl_fetch_input( ssl, mbedtls_ssl_hdr_len( ssl ) ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); + return( ret ); + } + + if( ( ret = ssl_parse_record_header( ssl ) ) != 0 ) + { +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ret != MBEDTLS_ERR_SSL_CLIENT_RECONNECT ) + { + if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ) + { + /* Skip unexpected record (but not whole datagram) */ + ssl->next_record_offset = ssl->in_msglen + + mbedtls_ssl_hdr_len( ssl ); + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding unexpected record " + "(header)" ) ); + } + else + { + /* Skip invalid record and the rest of the datagram */ + ssl->next_record_offset = 0; + ssl->in_left = 0; + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record " + "(header)" ) ); + } + + /* Get next record */ + goto read_record_header; + } +#endif + return( ret ); + } + + /* + * Read and optionally decrypt the message contents + */ + if( ( ret = mbedtls_ssl_fetch_input( ssl, + mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); + return( ret ); + } + + /* Done reading this record, get ready for the next one */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + ssl->next_record_offset = ssl->in_msglen + mbedtls_ssl_hdr_len( ssl ); + else +#endif + ssl->in_left = 0; + + if( ( ret = ssl_prepare_record_content( ssl ) ) != 0 ) + { +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + /* Silently discard invalid records */ + if( ret == MBEDTLS_ERR_SSL_INVALID_RECORD || + ret == MBEDTLS_ERR_SSL_INVALID_MAC ) + { + /* Except when waiting for Finished as a bad mac here + * probably means something went wrong in the handshake + * (eg wrong psk used, mitm downgrade attempt, etc.) */ + if( ssl->state == MBEDTLS_SSL_CLIENT_FINISHED || + ssl->state == MBEDTLS_SSL_SERVER_FINISHED ) + { +#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES) + if( ret == MBEDTLS_ERR_SSL_INVALID_MAC ) + { + mbedtls_ssl_send_alert_message( ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC ); + } +#endif + return( ret ); + } + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) + if( ssl->conf->badmac_limit != 0 && + ++ssl->badmac_seen >= ssl->conf->badmac_limit ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "too many records with bad MAC" ) ); + return( MBEDTLS_ERR_SSL_INVALID_MAC ); + } +#endif + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record (mac)" ) ); + goto read_record_header; + } + + return( ret ); + } + else +#endif + { + /* Error out (and send alert) on invalid records */ +#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES) + if( ret == MBEDTLS_ERR_SSL_INVALID_MAC ) + { + mbedtls_ssl_send_alert_message( ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC ); + } +#endif + return( ret ); + } + } + + /* + * When we sent the last flight of the handshake, we MUST respond to a + * retransmit of the peer's previous flight with a retransmit. (In + * practice, only the Finished message will make it, other messages + * including CCS use the old transform so they're dropped as invalid.) + * + * If the record we received is not a handshake message, however, it + * means the peer received our last flight so we can clean up + * handshake info. + * + * This check needs to be done before prepare_handshake() due to an edge + * case: if the client immediately requests renegotiation, this + * finishes the current handshake first, avoiding the new ClientHello + * being mistaken for an ancient message in the current handshake. + */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake != NULL && + ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) + { + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && + ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "received retransmit of last flight" ) ); + + if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret ); + return( ret ); + } + + return( MBEDTLS_ERR_SSL_WANT_READ ); + } + else + { + ssl_handshake_wrapup_free_hs_transform( ssl ); + } + } +#endif + + return( 0 ); +} + +int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl ) +{ + int ret; + + /* + * Handle particular types of records + */ + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) + { + if( ( ret = mbedtls_ssl_prepare_handshake_record( ssl ) ) != 0 ) + { + return( ret ); + } + } + + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%d:%d]", + ssl->in_msg[0], ssl->in_msg[1] ) ); + + /* + * Ignore non-fatal alerts, except close_notify and no_renegotiation + */ + if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_FATAL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "is a fatal alert message (msg %d)", + ssl->in_msg[1] ) ); + return( MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE ); + } + + if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && + ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a close notify message" ) ); + return( MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY ); + } + +#if defined(MBEDTLS_SSL_RENEGOTIATION_ENABLED) + if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && + ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no_cert" ) ); + /* Will be handled when trying to parse ServerHello */ + return( 0 ); + } +#endif + +#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_SRV_C) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 && + ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && + ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no_cert" ) ); + /* Will be handled in mbedtls_ssl_parse_certificate() */ + return( 0 ); + } +#endif /* MBEDTLS_SSL_PROTO_SSL3 && MBEDTLS_SSL_SRV_C */ + + /* Silently ignore: fetch new message */ + return MBEDTLS_ERR_SSL_NON_FATAL; + } + + return( 0 ); +} + +int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl ) +{ + int ret; + + if( ( ret = mbedtls_ssl_send_alert_message( ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ) ) != 0 ) + { + return( ret ); + } + + return( 0 ); +} + +int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl, + unsigned char level, + unsigned char message ) +{ + int ret; + + if( ssl == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> send alert message" ) ); + + ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT; + ssl->out_msglen = 2; + ssl->out_msg[0] = level; + ssl->out_msg[1] = message; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= send alert message" ) ); + + return( 0 ); +} + +/* + * Handshake functions + */ +#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \ + !defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) +{ + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); + ssl->state++; + return( 0 ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); +} + +int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) +{ + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); + ssl->state++; + return( 0 ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); +} +#else +int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + size_t i, n; + const mbedtls_x509_crt *crt; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); + ssl->state++; + return( 0 ); + } + +#if defined(MBEDTLS_SSL_CLI_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + { + if( ssl->client_auth == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); + ssl->state++; + return( 0 ); + } + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + /* + * If using SSLv3 and got no cert, send an Alert message + * (otherwise an empty Certificate message will be sent). + */ + if( mbedtls_ssl_own_cert( ssl ) == NULL && + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + ssl->out_msglen = 2; + ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT; + ssl->out_msg[0] = MBEDTLS_SSL_ALERT_LEVEL_WARNING; + ssl->out_msg[1] = MBEDTLS_SSL_ALERT_MSG_NO_CERT; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) ); + goto write_msg; + } +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + } +#endif /* MBEDTLS_SSL_CLI_C */ +#if defined(MBEDTLS_SSL_SRV_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + { + if( mbedtls_ssl_own_cert( ssl ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no certificate to send" ) ); + return( MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED ); + } + } +#endif + + MBEDTLS_SSL_DEBUG_CRT( 3, "own certificate", mbedtls_ssl_own_cert( ssl ) ); + + /* + * 0 . 0 handshake type + * 1 . 3 handshake length + * 4 . 6 length of all certs + * 7 . 9 length of cert. 1 + * 10 . n-1 peer certificate + * n . n+2 length of cert. 2 + * n+3 . ... upper level cert, etc. + */ + i = 7; + crt = mbedtls_ssl_own_cert( ssl ); + + while( crt != NULL ) + { + n = crt->raw.len; + if( n > MBEDTLS_SSL_MAX_CONTENT_LEN - 3 - i ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %d > %d", + i + 3 + n, MBEDTLS_SSL_MAX_CONTENT_LEN ) ); + return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE ); + } + + ssl->out_msg[i ] = (unsigned char)( n >> 16 ); + ssl->out_msg[i + 1] = (unsigned char)( n >> 8 ); + ssl->out_msg[i + 2] = (unsigned char)( n ); + + i += 3; memcpy( ssl->out_msg + i, crt->raw.p, n ); + i += n; crt = crt->next; + } + + ssl->out_msg[4] = (unsigned char)( ( i - 7 ) >> 16 ); + ssl->out_msg[5] = (unsigned char)( ( i - 7 ) >> 8 ); + ssl->out_msg[6] = (unsigned char)( ( i - 7 ) ); + + ssl->out_msglen = i; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE; + +#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_CLI_C) +write_msg: +#endif + + ssl->state++; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate" ) ); + + return( ret ); +} + +int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + size_t i, n; + const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; + int authmode = ssl->conf->authmode; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) ); + + if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); + ssl->state++; + return( 0 ); + } + +#if defined(MBEDTLS_SSL_SRV_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); + ssl->state++; + return( 0 ); + } + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + if( ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET ) + authmode = ssl->handshake->sni_authmode; +#endif + + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + authmode == MBEDTLS_SSL_VERIFY_NONE ) + { + ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_SKIP_VERIFY; + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); + ssl->state++; + return( 0 ); + } +#endif + + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + ssl->state++; + +#if defined(MBEDTLS_SSL_SRV_C) +#if defined(MBEDTLS_SSL_PROTO_SSL3) + /* + * Check if the client sent an empty certificate + */ + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + if( ssl->in_msglen == 2 && + ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT && + ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && + ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "SSLv3 client has no certificate" ) ); + + ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING; + if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL ) + return( 0 ); + else + return( MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE ); + } + } +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) + { + if( ssl->in_hslen == 3 + mbedtls_ssl_hs_hdr_len( ssl ) && + ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && + ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE && + memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), "\0\0\0", 3 ) == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLSv1 client has no certificate" ) ); + + ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING; + if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL ) + return( 0 ); + else + return( MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE ); + } + } +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ + MBEDTLS_SSL_PROTO_TLS1_2 */ +#endif /* MBEDTLS_SSL_SRV_C */ + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE || + ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 3 + 3 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + } + + i = mbedtls_ssl_hs_hdr_len( ssl ); + + /* + * Same message structure as in mbedtls_ssl_write_certificate() + */ + n = ( ssl->in_msg[i+1] << 8 ) | ssl->in_msg[i+2]; + + if( ssl->in_msg[i] != 0 || + ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len( ssl ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + } + + /* In case we tried to reuse a session but it failed */ + if( ssl->session_negotiate->peer_cert != NULL ) + { + mbedtls_x509_crt_free( ssl->session_negotiate->peer_cert ); + mbedtls_free( ssl->session_negotiate->peer_cert ); + } + + if( ( ssl->session_negotiate->peer_cert = mbedtls_calloc( 1, + sizeof( mbedtls_x509_crt ) ) ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", + sizeof( mbedtls_x509_crt ) ) ); + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + mbedtls_x509_crt_init( ssl->session_negotiate->peer_cert ); + + i += 3; + + while( i < ssl->in_hslen ) + { + if( ssl->in_msg[i] != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + } + + n = ( (unsigned int) ssl->in_msg[i + 1] << 8 ) + | (unsigned int) ssl->in_msg[i + 2]; + i += 3; + + if( n < 128 || i + n > ssl->in_hslen ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + } + + ret = mbedtls_x509_crt_parse_der( ssl->session_negotiate->peer_cert, + ssl->in_msg + i, n ); + if( 0 != ret && ( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + MBEDTLS_ERR_OID_NOT_FOUND ) != ret ) + { + MBEDTLS_SSL_DEBUG_RET( 1, " mbedtls_x509_crt_parse_der", ret ); + return( ret ); + } + + i += n; + } + + MBEDTLS_SSL_DEBUG_CRT( 3, "peer certificate", ssl->session_negotiate->peer_cert ); + + /* + * On client, make sure the server cert doesn't change during renego to + * avoid "triple handshake" attack: https://secure-resumption.com/ + */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && + ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + { + if( ssl->session->peer_cert == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + } + + if( ssl->session->peer_cert->raw.len != + ssl->session_negotiate->peer_cert->raw.len || + memcmp( ssl->session->peer_cert->raw.p, + ssl->session_negotiate->peer_cert->raw.p, + ssl->session->peer_cert->raw.len ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "server cert changed during renegotiation" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + } + } +#endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */ + + if( authmode != MBEDTLS_SSL_VERIFY_NONE ) + { + mbedtls_x509_crt *ca_chain; + mbedtls_x509_crl *ca_crl; + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + if( ssl->handshake->sni_ca_chain != NULL ) + { + ca_chain = ssl->handshake->sni_ca_chain; + ca_crl = ssl->handshake->sni_ca_crl; + } + else +#endif + { + ca_chain = ssl->conf->ca_chain; + ca_crl = ssl->conf->ca_crl; + } + + if( ca_chain == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no CA chain" ) ); + return( MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED ); + } + + /* + * Main check: verify certificate + */ + ret = mbedtls_x509_crt_verify_with_profile( + ssl->session_negotiate->peer_cert, + ca_chain, ca_crl, + ssl->conf->cert_profile, + ssl->hostname, + &ssl->session_negotiate->verify_result, + ssl->conf->f_vrfy, ssl->conf->p_vrfy ); + + if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "x509_verify_cert", ret ); + } + + /* + * Secondary checks: always done, but change 'ret' only if it was 0 + */ + +#if defined(MBEDTLS_ECP_C) + { + const mbedtls_pk_context *pk = &ssl->session_negotiate->peer_cert->pk; + + /* If certificate uses an EC key, make sure the curve is OK */ + if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) && + mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (EC key curve)" ) ); + if( ret == 0 ) + ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; + } + } +#endif /* MBEDTLS_ECP_C */ + + if( mbedtls_ssl_check_cert_usage( ssl->session_negotiate->peer_cert, + ciphersuite_info, + ! ssl->conf->endpoint, + &ssl->session_negotiate->verify_result ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (usage extensions)" ) ); + if( ret == 0 ) + ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; + } + + if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL ) + ret = 0; + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate" ) ); + + return( ret ); +} +#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED + !MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED + !MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED + !MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED + !MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED + !MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED + !MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ + +int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write change cipher spec" ) ); + + ssl->out_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC; + ssl->out_msglen = 1; + ssl->out_msg[0] = 1; + + ssl->state++; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write change cipher spec" ) ); + + return( 0 ); +} + +int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse change cipher spec" ) ); + + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + if( ssl->in_msglen != 1 || ssl->in_msg[0] != 1 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC ); + } + + /* + * Switch to our negotiated transform and session parameters for inbound + * data. + */ + MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for inbound data" ) ); + ssl->transform_in = ssl->transform_negotiate; + ssl->session_in = ssl->session_negotiate; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + ssl_dtls_replay_reset( ssl ); +#endif + + /* Increment epoch */ + if( ++ssl->in_epoch == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) ); + return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); + } + } + else +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + memset( ssl->in_ctr, 0, 8 ); + + /* + * Set the in_msg pointer to the correct location based on IV length + */ + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) + { + ssl->in_msg = ssl->in_iv + ssl->transform_negotiate->ivlen - + ssl->transform_negotiate->fixed_ivlen; + } + else + ssl->in_msg = ssl->in_iv; + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_activate != NULL ) + { + if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_INBOUND ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret ); + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } + } +#endif + + ssl->state++; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse change cipher spec" ) ); + + return( 0 ); +} + +void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl, + const mbedtls_ssl_ciphersuite_t *ciphersuite_info ) +{ + ((void) ciphersuite_info); + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) + ssl->handshake->update_checksum = ssl_update_checksum_md5sha1; + else +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA512_C) + if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 ) + ssl->handshake->update_checksum = ssl_update_checksum_sha384; + else +#endif +#if defined(MBEDTLS_SHA256_C) + if( ciphersuite_info->mac != MBEDTLS_MD_SHA384 ) + ssl->handshake->update_checksum = ssl_update_checksum_sha256; + else +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return; + } +} + +void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl ) +{ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + mbedtls_md5_starts( &ssl->handshake->fin_md5 ); + mbedtls_sha1_starts( &ssl->handshake->fin_sha1 ); +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) + mbedtls_sha256_starts( &ssl->handshake->fin_sha256, 0 ); +#endif +#if defined(MBEDTLS_SHA512_C) + mbedtls_sha512_starts( &ssl->handshake->fin_sha512, 1 ); +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ +} + +static void ssl_update_checksum_start( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + mbedtls_md5_update( &ssl->handshake->fin_md5 , buf, len ); + mbedtls_sha1_update( &ssl->handshake->fin_sha1, buf, len ); +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) + mbedtls_sha256_update( &ssl->handshake->fin_sha256, buf, len ); +#endif +#if defined(MBEDTLS_SHA512_C) + mbedtls_sha512_update( &ssl->handshake->fin_sha512, buf, len ); +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ +} + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) +static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ + mbedtls_md5_update( &ssl->handshake->fin_md5 , buf, len ); + mbedtls_sha1_update( &ssl->handshake->fin_sha1, buf, len ); +} +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) +static void ssl_update_checksum_sha256( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ + mbedtls_sha256_update( &ssl->handshake->fin_sha256, buf, len ); +} +#endif + +#if defined(MBEDTLS_SHA512_C) +static void ssl_update_checksum_sha384( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ + mbedtls_sha512_update( &ssl->handshake->fin_sha512, buf, len ); +} +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +#if defined(MBEDTLS_SSL_PROTO_SSL3) +static void ssl_calc_finished_ssl( + mbedtls_ssl_context *ssl, unsigned char *buf, int from ) +{ + const char *sender; + mbedtls_md5_context md5; + mbedtls_sha1_context sha1; + + unsigned char padbuf[48]; + unsigned char md5sum[16]; + unsigned char sha1sum[20]; + + mbedtls_ssl_session *session = ssl->session_negotiate; + if( !session ) + session = ssl->session; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished ssl" ) ); + + mbedtls_md5_init( &md5 ); + mbedtls_sha1_init( &sha1 ); + + mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); + mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + + /* + * SSLv3: + * hash = + * MD5( master + pad2 + + * MD5( handshake + sender + master + pad1 ) ) + * + SHA1( master + pad2 + + * SHA1( handshake + sender + master + pad1 ) ) + */ + +#if !defined(MBEDTLS_MD5_ALT) + MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *) + md5.state, sizeof( md5.state ) ); +#endif + +#if !defined(MBEDTLS_SHA1_ALT) + MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *) + sha1.state, sizeof( sha1.state ) ); +#endif + + sender = ( from == MBEDTLS_SSL_IS_CLIENT ) ? "CLNT" + : "SRVR"; + + memset( padbuf, 0x36, 48 ); + + mbedtls_md5_update( &md5, (const unsigned char *) sender, 4 ); + mbedtls_md5_update( &md5, session->master, 48 ); + mbedtls_md5_update( &md5, padbuf, 48 ); + mbedtls_md5_finish( &md5, md5sum ); + + mbedtls_sha1_update( &sha1, (const unsigned char *) sender, 4 ); + mbedtls_sha1_update( &sha1, session->master, 48 ); + mbedtls_sha1_update( &sha1, padbuf, 40 ); + mbedtls_sha1_finish( &sha1, sha1sum ); + + memset( padbuf, 0x5C, 48 ); + + mbedtls_md5_starts( &md5 ); + mbedtls_md5_update( &md5, session->master, 48 ); + mbedtls_md5_update( &md5, padbuf, 48 ); + mbedtls_md5_update( &md5, md5sum, 16 ); + mbedtls_md5_finish( &md5, buf ); + + mbedtls_sha1_starts( &sha1 ); + mbedtls_sha1_update( &sha1, session->master, 48 ); + mbedtls_sha1_update( &sha1, padbuf , 40 ); + mbedtls_sha1_update( &sha1, sha1sum, 20 ); + mbedtls_sha1_finish( &sha1, buf + 16 ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, 36 ); + + mbedtls_md5_free( &md5 ); + mbedtls_sha1_free( &sha1 ); + + mbedtls_zeroize( padbuf, sizeof( padbuf ) ); + mbedtls_zeroize( md5sum, sizeof( md5sum ) ); + mbedtls_zeroize( sha1sum, sizeof( sha1sum ) ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); +} +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) +static void ssl_calc_finished_tls( + mbedtls_ssl_context *ssl, unsigned char *buf, int from ) +{ + int len = 12; + const char *sender; + mbedtls_md5_context md5; + mbedtls_sha1_context sha1; + unsigned char padbuf[36]; + + mbedtls_ssl_session *session = ssl->session_negotiate; + if( !session ) + session = ssl->session; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls" ) ); + + mbedtls_md5_init( &md5 ); + mbedtls_sha1_init( &sha1 ); + + mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); + mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + + /* + * TLSv1: + * hash = PRF( master, finished_label, + * MD5( handshake ) + SHA1( handshake ) )[0..11] + */ + +#if !defined(MBEDTLS_MD5_ALT) + MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *) + md5.state, sizeof( md5.state ) ); +#endif + +#if !defined(MBEDTLS_SHA1_ALT) + MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *) + sha1.state, sizeof( sha1.state ) ); +#endif + + sender = ( from == MBEDTLS_SSL_IS_CLIENT ) + ? "client finished" + : "server finished"; + + mbedtls_md5_finish( &md5, padbuf ); + mbedtls_sha1_finish( &sha1, padbuf + 16 ); + + ssl->handshake->tls_prf( session->master, 48, sender, + padbuf, 36, buf, len ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); + + mbedtls_md5_free( &md5 ); + mbedtls_sha1_free( &sha1 ); + + mbedtls_zeroize( padbuf, sizeof( padbuf ) ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); +} +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) +static void ssl_calc_finished_tls_sha256( + mbedtls_ssl_context *ssl, unsigned char *buf, int from ) +{ + int len = 12; + const char *sender; + mbedtls_sha256_context sha256; + unsigned char padbuf[32]; + + mbedtls_ssl_session *session = ssl->session_negotiate; + if( !session ) + session = ssl->session; + + mbedtls_sha256_init( &sha256 ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha256" ) ); + + mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 ); + + /* + * TLSv1.2: + * hash = PRF( master, finished_label, + * Hash( handshake ) )[0.11] + */ + +#if !defined(MBEDTLS_SHA256_ALT) + MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha2 state", (unsigned char *) + sha256.state, sizeof( sha256.state ) ); +#endif + + sender = ( from == MBEDTLS_SSL_IS_CLIENT ) + ? "client finished" + : "server finished"; + + mbedtls_sha256_finish( &sha256, padbuf ); + + ssl->handshake->tls_prf( session->master, 48, sender, + padbuf, 32, buf, len ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); + + mbedtls_sha256_free( &sha256 ); + + mbedtls_zeroize( padbuf, sizeof( padbuf ) ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); +} +#endif /* MBEDTLS_SHA256_C */ + +#if defined(MBEDTLS_SHA512_C) +static void ssl_calc_finished_tls_sha384( + mbedtls_ssl_context *ssl, unsigned char *buf, int from ) +{ + int len = 12; + const char *sender; + mbedtls_sha512_context sha512; + unsigned char padbuf[48]; + + mbedtls_ssl_session *session = ssl->session_negotiate; + if( !session ) + session = ssl->session; + + mbedtls_sha512_init( &sha512 ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha384" ) ); + + mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 ); + + /* + * TLSv1.2: + * hash = PRF( master, finished_label, + * Hash( handshake ) )[0.11] + */ + +#if !defined(MBEDTLS_SHA512_ALT) + MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha512 state", (unsigned char *) + sha512.state, sizeof( sha512.state ) ); +#endif + + sender = ( from == MBEDTLS_SSL_IS_CLIENT ) + ? "client finished" + : "server finished"; + + mbedtls_sha512_finish( &sha512, padbuf ); + + ssl->handshake->tls_prf( session->master, 48, sender, + padbuf, 48, buf, len ); + + MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); + + mbedtls_sha512_free( &sha512 ); + + mbedtls_zeroize( padbuf, sizeof( padbuf ) ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); +} +#endif /* MBEDTLS_SHA512_C */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl ) +{ + MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup: final free" ) ); + + /* + * Free our handshake params + */ + mbedtls_ssl_handshake_free( ssl->handshake ); + mbedtls_free( ssl->handshake ); + ssl->handshake = NULL; + + /* + * Free the previous transform and swith in the current one + */ + if( ssl->transform ) + { + mbedtls_ssl_transform_free( ssl->transform ); + mbedtls_free( ssl->transform ); + } + ssl->transform = ssl->transform_negotiate; + ssl->transform_negotiate = NULL; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup: final free" ) ); +} + +void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl ) +{ + int resume = ssl->handshake->resume; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup" ) ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + { + ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_DONE; + ssl->renego_records_seen = 0; + } +#endif + + /* + * Free the previous session and switch in the current one + */ + if( ssl->session ) + { +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + /* RFC 7366 3.1: keep the EtM state */ + ssl->session_negotiate->encrypt_then_mac = + ssl->session->encrypt_then_mac; +#endif + + mbedtls_ssl_session_free( ssl->session ); + mbedtls_free( ssl->session ); + } + ssl->session = ssl->session_negotiate; + ssl->session_negotiate = NULL; + + /* + * Add cache entry + */ + if( ssl->conf->f_set_cache != NULL && + ssl->session->id_len != 0 && + resume == 0 ) + { + if( ssl->conf->f_set_cache( ssl->conf->p_cache, ssl->session ) != 0 ) + MBEDTLS_SSL_DEBUG_MSG( 1, ( "cache did not store session" ) ); + } + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake->flight != NULL ) + { + /* Cancel handshake timer */ + ssl_set_timer( ssl, 0 ); + + /* Keep last flight around in case we need to resend it: + * we need the handshake and transform structures for that */ + MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip freeing handshake and transform" ) ); + } + else +#endif + ssl_handshake_wrapup_free_hs_transform( ssl ); + + ssl->state++; + + MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup" ) ); +} + +int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ) +{ + int ret, hash_len; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write finished" ) ); + + /* + * Set the out_msg pointer to the correct location based on IV length + */ + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) + { + ssl->out_msg = ssl->out_iv + ssl->transform_negotiate->ivlen - + ssl->transform_negotiate->fixed_ivlen; + } + else + ssl->out_msg = ssl->out_iv; + + ssl->handshake->calc_finished( ssl, ssl->out_msg + 4, ssl->conf->endpoint ); + + /* + * RFC 5246 7.4.9 (Page 63) says 12 is the default length and ciphersuites + * may define some other value. Currently (early 2016), no defined + * ciphersuite does this (and this is unlikely to change as activity has + * moved to TLS 1.3 now) so we can keep the hardcoded 12 here. + */ + hash_len = ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) ? 36 : 12; + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + ssl->verify_data_len = hash_len; + memcpy( ssl->own_verify_data, ssl->out_msg + 4, hash_len ); +#endif + + ssl->out_msglen = 4 + hash_len; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_FINISHED; + + /* + * In case of session resuming, invert the client and server + * ChangeCipherSpec messages order. + */ + if( ssl->handshake->resume != 0 ) + { +#if defined(MBEDTLS_SSL_CLI_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; +#endif +#if defined(MBEDTLS_SSL_SRV_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC; +#endif + } + else + ssl->state++; + + /* + * Switch to our negotiated transform and session parameters for outbound + * data. + */ + MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for outbound data" ) ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + unsigned char i; + + /* Remember current epoch settings for resending */ + ssl->handshake->alt_transform_out = ssl->transform_out; + memcpy( ssl->handshake->alt_out_ctr, ssl->out_ctr, 8 ); + + /* Set sequence_number to zero */ + memset( ssl->out_ctr + 2, 0, 6 ); + + /* Increment epoch */ + for( i = 2; i > 0; i-- ) + if( ++ssl->out_ctr[i - 1] != 0 ) + break; + + /* The loop goes to its end iff the counter is wrapping */ + if( i == 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) ); + return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); + } + } + else +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + memset( ssl->out_ctr, 0, 8 ); + + ssl->transform_out = ssl->transform_negotiate; + ssl->session_out = ssl->session_negotiate; + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_activate != NULL ) + { + if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret ); + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } + } +#endif + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + mbedtls_ssl_send_flight_completed( ssl ); +#endif + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write finished" ) ); + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_PROTO_SSL3) +#define SSL_MAX_HASH_LEN 36 +#else +#define SSL_MAX_HASH_LEN 12 +#endif + +int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl ) +{ + int ret; + unsigned int hash_len; + unsigned char buf[SSL_MAX_HASH_LEN]; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse finished" ) ); + + ssl->handshake->calc_finished( ssl, buf, ssl->conf->endpoint ^ 1 ); + + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + /* There is currently no ciphersuite using another length with TLS 1.2 */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + hash_len = 36; + else +#endif + hash_len = 12; + + if( ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED || + ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + hash_len ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED ); + } + + if( mbedtls_ssl_safer_memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), + buf, hash_len ) != 0 ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); + return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED ); + } + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + ssl->verify_data_len = hash_len; + memcpy( ssl->peer_verify_data, buf, hash_len ); +#endif + + if( ssl->handshake->resume != 0 ) + { +#if defined(MBEDTLS_SSL_CLI_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC; +#endif +#if defined(MBEDTLS_SSL_SRV_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; +#endif + } + else + ssl->state++; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + mbedtls_ssl_recv_flight_completed( ssl ); +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse finished" ) ); + + return( 0 ); +} + +static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake ) +{ + memset( handshake, 0, sizeof( mbedtls_ssl_handshake_params ) ); + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + mbedtls_md5_init( &handshake->fin_md5 ); + mbedtls_sha1_init( &handshake->fin_sha1 ); + mbedtls_md5_starts( &handshake->fin_md5 ); + mbedtls_sha1_starts( &handshake->fin_sha1 ); +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) + mbedtls_sha256_init( &handshake->fin_sha256 ); + mbedtls_sha256_starts( &handshake->fin_sha256, 0 ); +#endif +#if defined(MBEDTLS_SHA512_C) + mbedtls_sha512_init( &handshake->fin_sha512 ); + mbedtls_sha512_starts( &handshake->fin_sha512, 1 ); +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + + handshake->update_checksum = ssl_update_checksum_start; + handshake->sig_alg = MBEDTLS_SSL_HASH_SHA1; + +#if defined(MBEDTLS_DHM_C) + mbedtls_dhm_init( &handshake->dhm_ctx ); +#endif +#if defined(MBEDTLS_ECDH_C) + mbedtls_ecdh_init( &handshake->ecdh_ctx ); +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + mbedtls_ecjpake_init( &handshake->ecjpake_ctx ); +#if defined(MBEDTLS_SSL_CLI_C) + handshake->ecjpake_cache = NULL; + handshake->ecjpake_cache_len = 0; +#endif +#endif + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + handshake->sni_authmode = MBEDTLS_SSL_VERIFY_UNSET; +#endif +} + +static void ssl_transform_init( mbedtls_ssl_transform *transform ) +{ + memset( transform, 0, sizeof(mbedtls_ssl_transform) ); + + mbedtls_cipher_init( &transform->cipher_ctx_enc ); + mbedtls_cipher_init( &transform->cipher_ctx_dec ); + + mbedtls_md_init( &transform->md_ctx_enc ); + mbedtls_md_init( &transform->md_ctx_dec ); +} + +void mbedtls_ssl_session_init( mbedtls_ssl_session *session ) +{ + memset( session, 0, sizeof(mbedtls_ssl_session) ); +} + +static int ssl_handshake_init( mbedtls_ssl_context *ssl ) +{ + /* Clear old handshake information if present */ + if( ssl->transform_negotiate ) + mbedtls_ssl_transform_free( ssl->transform_negotiate ); + if( ssl->session_negotiate ) + mbedtls_ssl_session_free( ssl->session_negotiate ); + if( ssl->handshake ) + mbedtls_ssl_handshake_free( ssl->handshake ); + + /* + * Either the pointers are now NULL or cleared properly and can be freed. + * Now allocate missing structures. + */ + if( ssl->transform_negotiate == NULL ) + { + ssl->transform_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_transform) ); + } + + if( ssl->session_negotiate == NULL ) + { + ssl->session_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_session) ); + } + + if( ssl->handshake == NULL ) + { + ssl->handshake = mbedtls_calloc( 1, sizeof(mbedtls_ssl_handshake_params) ); + } + + /* All pointers should exist and can be directly freed without issue */ + if( ssl->handshake == NULL || + ssl->transform_negotiate == NULL || + ssl->session_negotiate == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc() of ssl sub-contexts failed" ) ); + + mbedtls_free( ssl->handshake ); + mbedtls_free( ssl->transform_negotiate ); + mbedtls_free( ssl->session_negotiate ); + + ssl->handshake = NULL; + ssl->transform_negotiate = NULL; + ssl->session_negotiate = NULL; + + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + /* Initialize structures */ + mbedtls_ssl_session_init( ssl->session_negotiate ); + ssl_transform_init( ssl->transform_negotiate ); + ssl_handshake_params_init( ssl->handshake ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + ssl->handshake->alt_transform_out = ssl->transform_out; + + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING; + else + ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING; + + ssl_set_timer( ssl, 0 ); + } +#endif + + return( 0 ); +} + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) +/* Dummy cookie callbacks for defaults */ +static int ssl_cookie_write_dummy( void *ctx, + unsigned char **p, unsigned char *end, + const unsigned char *cli_id, size_t cli_id_len ) +{ + ((void) ctx); + ((void) p); + ((void) end); + ((void) cli_id); + ((void) cli_id_len); + + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); +} + +static int ssl_cookie_check_dummy( void *ctx, + const unsigned char *cookie, size_t cookie_len, + const unsigned char *cli_id, size_t cli_id_len ) +{ + ((void) ctx); + ((void) cookie); + ((void) cookie_len); + ((void) cli_id); + ((void) cli_id_len); + + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); +} +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ + +/* + * Initialize an SSL context + */ +void mbedtls_ssl_init( mbedtls_ssl_context *ssl ) +{ + memset( ssl, 0, sizeof( mbedtls_ssl_context ) ); +} + +/* + * Setup an SSL context + */ +int mbedtls_ssl_setup( mbedtls_ssl_context *ssl, + const mbedtls_ssl_config *conf ) +{ + int ret; + const size_t len = MBEDTLS_SSL_BUFFER_LEN; + + ssl->conf = conf; + + /* + * Prepare base structures + */ + if( ( ssl-> in_buf = mbedtls_calloc( 1, len ) ) == NULL || + ( ssl->out_buf = mbedtls_calloc( 1, len ) ) == NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", len ) ); + mbedtls_free( ssl->in_buf ); + ssl->in_buf = NULL; + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + ssl->out_hdr = ssl->out_buf; + ssl->out_ctr = ssl->out_buf + 3; + ssl->out_len = ssl->out_buf + 11; + ssl->out_iv = ssl->out_buf + 13; + ssl->out_msg = ssl->out_buf + 13; + + ssl->in_hdr = ssl->in_buf; + ssl->in_ctr = ssl->in_buf + 3; + ssl->in_len = ssl->in_buf + 11; + ssl->in_iv = ssl->in_buf + 13; + ssl->in_msg = ssl->in_buf + 13; + } + else +#endif + { + ssl->out_ctr = ssl->out_buf; + ssl->out_hdr = ssl->out_buf + 8; + ssl->out_len = ssl->out_buf + 11; + ssl->out_iv = ssl->out_buf + 13; + ssl->out_msg = ssl->out_buf + 13; + + ssl->in_ctr = ssl->in_buf; + ssl->in_hdr = ssl->in_buf + 8; + ssl->in_len = ssl->in_buf + 11; + ssl->in_iv = ssl->in_buf + 13; + ssl->in_msg = ssl->in_buf + 13; + } + + if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +/* + * Reset an initialized and used SSL context for re-use while retaining + * all application-set variables, function pointers and data. + * + * If partial is non-zero, keep data in the input buffer and client ID. + * (Use when a DTLS client reconnects from the same port.) + */ +static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) +{ + int ret; + + ssl->state = MBEDTLS_SSL_HELLO_REQUEST; + + /* Cancel any possibly running timer */ + ssl_set_timer( ssl, 0 ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + ssl->renego_status = MBEDTLS_SSL_INITIAL_HANDSHAKE; + ssl->renego_records_seen = 0; + + ssl->verify_data_len = 0; + memset( ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN ); + memset( ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN ); +#endif + ssl->secure_renegotiation = MBEDTLS_SSL_LEGACY_RENEGOTIATION; + + ssl->in_offt = NULL; + + ssl->in_msg = ssl->in_buf + 13; + ssl->in_msgtype = 0; + ssl->in_msglen = 0; + if( partial == 0 ) + ssl->in_left = 0; +#if defined(MBEDTLS_SSL_PROTO_DTLS) + ssl->next_record_offset = 0; + ssl->in_epoch = 0; +#endif +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + ssl_dtls_replay_reset( ssl ); +#endif + + ssl->in_hslen = 0; + ssl->nb_zero = 0; + ssl->record_read = 0; + + ssl->out_msg = ssl->out_buf + 13; + ssl->out_msgtype = 0; + ssl->out_msglen = 0; + ssl->out_left = 0; +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) + if( ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED ) + ssl->split_done = 0; +#endif + + ssl->transform_in = NULL; + ssl->transform_out = NULL; + + memset( ssl->out_buf, 0, MBEDTLS_SSL_BUFFER_LEN ); + if( partial == 0 ) + memset( ssl->in_buf, 0, MBEDTLS_SSL_BUFFER_LEN ); + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_reset != NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_reset()" ) ); + if( ( ret = mbedtls_ssl_hw_record_reset( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_reset", ret ); + return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + } + } +#endif + + if( ssl->transform ) + { + mbedtls_ssl_transform_free( ssl->transform ); + mbedtls_free( ssl->transform ); + ssl->transform = NULL; + } + + if( ssl->session ) + { + mbedtls_ssl_session_free( ssl->session ); + mbedtls_free( ssl->session ); + ssl->session = NULL; + } + +#if defined(MBEDTLS_SSL_ALPN) + ssl->alpn_chosen = NULL; +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) + if( partial == 0 ) + { + mbedtls_free( ssl->cli_id ); + ssl->cli_id = NULL; + ssl->cli_id_len = 0; + } +#endif + + if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +/* + * Reset an initialized and used SSL context for re-use while retaining + * all application-set variables, function pointers and data. + */ +int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl ) +{ + return( ssl_session_reset_int( ssl, 0 ) ); +} + +/* + * SSL set accessors + */ +void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint ) +{ + conf->endpoint = endpoint; +} + +void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport ) +{ + conf->transport = transport; +} + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode ) +{ + conf->anti_replay = mode; +} +#endif + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) +void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit ) +{ + conf->badmac_limit = limit; +} +#endif + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf, uint32_t min, uint32_t max ) +{ + conf->hs_timeout_min = min; + conf->hs_timeout_max = max; +} +#endif + +void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode ) +{ + conf->authmode = authmode; +} + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ) +{ + conf->f_vrfy = f_vrfy; + conf->p_vrfy = p_vrfy; +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + conf->f_rng = f_rng; + conf->p_rng = p_rng; +} + +void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf, + void (*f_dbg)(void *, int, const char *, int, const char *), + void *p_dbg ) +{ + conf->f_dbg = f_dbg; + conf->p_dbg = p_dbg; +} + +void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl, + void *p_bio, + mbedtls_ssl_send_t *f_send, + mbedtls_ssl_recv_t *f_recv, + mbedtls_ssl_recv_timeout_t *f_recv_timeout ) +{ + ssl->p_bio = p_bio; + ssl->f_send = f_send; + ssl->f_recv = f_recv; + ssl->f_recv_timeout = f_recv_timeout; +} + +void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout ) +{ + conf->read_timeout = timeout; +} + +void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl, + void *p_timer, + mbedtls_ssl_set_timer_t *f_set_timer, + mbedtls_ssl_get_timer_t *f_get_timer ) +{ + ssl->p_timer = p_timer; + ssl->f_set_timer = f_set_timer; + ssl->f_get_timer = f_get_timer; + + /* Make sure we start with no timer running */ + ssl_set_timer( ssl, 0 ); +} + +#if defined(MBEDTLS_SSL_SRV_C) +void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf, + void *p_cache, + int (*f_get_cache)(void *, mbedtls_ssl_session *), + int (*f_set_cache)(void *, const mbedtls_ssl_session *) ) +{ + conf->p_cache = p_cache; + conf->f_get_cache = f_get_cache; + conf->f_set_cache = f_set_cache; +} +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_CLI_C) +int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session ) +{ + int ret; + + if( ssl == NULL || + session == NULL || + ssl->session_negotiate == NULL || + ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT ) + { + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + if( ( ret = ssl_session_copy( ssl->session_negotiate, session ) ) != 0 ) + return( ret ); + + ssl->handshake->resume = 1; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_CLI_C */ + +void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf, + const int *ciphersuites ) +{ + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = ciphersuites; + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = ciphersuites; + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = ciphersuites; + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = ciphersuites; +} + +void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf, + const int *ciphersuites, + int major, int minor ) +{ + if( major != MBEDTLS_SSL_MAJOR_VERSION_3 ) + return; + + if( minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3 ) + return; + + conf->ciphersuite_list[minor] = ciphersuites; +} + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf, + const mbedtls_x509_crt_profile *profile ) +{ + conf->cert_profile = profile; +} + +/* Append a new keycert entry to a (possibly empty) list */ +static int ssl_append_key_cert( mbedtls_ssl_key_cert **head, + mbedtls_x509_crt *cert, + mbedtls_pk_context *key ) +{ + mbedtls_ssl_key_cert *new; + + new = mbedtls_calloc( 1, sizeof( mbedtls_ssl_key_cert ) ); + if( new == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + new->cert = cert; + new->key = key; + new->next = NULL; + + /* Update head is the list was null, else add to the end */ + if( *head == NULL ) + { + *head = new; + } + else + { + mbedtls_ssl_key_cert *cur = *head; + while( cur->next != NULL ) + cur = cur->next; + cur->next = new; + } + + return( 0 ); +} + +int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf, + mbedtls_x509_crt *own_cert, + mbedtls_pk_context *pk_key ) +{ + return( ssl_append_key_cert( &conf->key_cert, own_cert, pk_key ) ); +} + +void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf, + mbedtls_x509_crt *ca_chain, + mbedtls_x509_crl *ca_crl ) +{ + conf->ca_chain = ca_chain; + conf->ca_crl = ca_crl; +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl, + mbedtls_x509_crt *own_cert, + mbedtls_pk_context *pk_key ) +{ + return( ssl_append_key_cert( &ssl->handshake->sni_key_cert, + own_cert, pk_key ) ); +} + +void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl, + mbedtls_x509_crt *ca_chain, + mbedtls_x509_crl *ca_crl ) +{ + ssl->handshake->sni_ca_chain = ca_chain; + ssl->handshake->sni_ca_crl = ca_crl; +} + +void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl, + int authmode ) +{ + ssl->handshake->sni_authmode = authmode; +} +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +/* + * Set EC J-PAKE password for current handshake + */ +int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl, + const unsigned char *pw, + size_t pw_len ) +{ + mbedtls_ecjpake_role role; + + if( ssl->handshake == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + role = MBEDTLS_ECJPAKE_SERVER; + else + role = MBEDTLS_ECJPAKE_CLIENT; + + return( mbedtls_ecjpake_setup( &ssl->handshake->ecjpake_ctx, + role, + MBEDTLS_MD_SHA256, + MBEDTLS_ECP_DP_SECP256R1, + pw, pw_len ) ); +} +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) +int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf, + const unsigned char *psk, size_t psk_len, + const unsigned char *psk_identity, size_t psk_identity_len ) +{ + if( psk == NULL || psk_identity == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( psk_len > MBEDTLS_PSK_MAX_LEN ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + /* Identity len will be encoded on two bytes */ + if( ( psk_identity_len >> 16 ) != 0 || + psk_identity_len > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + if( conf->psk != NULL || conf->psk_identity != NULL ) + { + mbedtls_free( conf->psk ); + mbedtls_free( conf->psk_identity ); + conf->psk = NULL; + conf->psk_identity = NULL; + } + + if( ( conf->psk = mbedtls_calloc( 1, psk_len ) ) == NULL || + ( conf->psk_identity = mbedtls_calloc( 1, psk_identity_len ) ) == NULL ) + { + mbedtls_free( conf->psk ); + mbedtls_free( conf->psk_identity ); + conf->psk = NULL; + conf->psk_identity = NULL; + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } + + conf->psk_len = psk_len; + conf->psk_identity_len = psk_identity_len; + + memcpy( conf->psk, psk, conf->psk_len ); + memcpy( conf->psk_identity, psk_identity, conf->psk_identity_len ); + + return( 0 ); +} + +int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl, + const unsigned char *psk, size_t psk_len ) +{ + if( psk == NULL || ssl->handshake == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( psk_len > MBEDTLS_PSK_MAX_LEN ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( ssl->handshake->psk != NULL ) + mbedtls_free( ssl->handshake->psk ); + + if( ( ssl->handshake->psk = mbedtls_calloc( 1, psk_len ) ) == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + ssl->handshake->psk_len = psk_len; + memcpy( ssl->handshake->psk, psk, ssl->handshake->psk_len ); + + return( 0 ); +} + +void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf, + int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, + size_t), + void *p_psk ) +{ + conf->f_psk = f_psk; + conf->p_psk = p_psk; +} +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) +int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G ) +{ + int ret; + + if( ( ret = mbedtls_mpi_read_string( &conf->dhm_P, 16, dhm_P ) ) != 0 || + ( ret = mbedtls_mpi_read_string( &conf->dhm_G, 16, dhm_G ) ) != 0 ) + { + mbedtls_mpi_free( &conf->dhm_P ); + mbedtls_mpi_free( &conf->dhm_G ); + return( ret ); + } + + return( 0 ); +} + +int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx ) +{ + int ret; + + if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 || + ( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 ) + { + mbedtls_mpi_free( &conf->dhm_P ); + mbedtls_mpi_free( &conf->dhm_G ); + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) +/* + * Set the minimum length for Diffie-Hellman parameters + */ +void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf, + unsigned int bitlen ) +{ + conf->dhm_min_bitlen = bitlen; +} +#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +/* + * Set allowed/preferred hashes for handshake signatures + */ +void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf, + const int *hashes ) +{ + conf->sig_hashes = hashes; +} +#endif + +#if defined(MBEDTLS_ECP_C) +/* + * Set the allowed elliptic curves + */ +void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf, + const mbedtls_ecp_group_id *curve_list ) +{ + conf->curve_list = curve_list; +} +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname ) +{ + size_t hostname_len; + + if( hostname == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + hostname_len = strlen( hostname ); + + if( hostname_len + 1 == 0 ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + ssl->hostname = mbedtls_calloc( 1, hostname_len + 1 ); + + if( ssl->hostname == NULL ) + return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + + memcpy( ssl->hostname, hostname, hostname_len ); + + ssl->hostname[hostname_len] = '\0'; + + return( 0 ); +} +#endif + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf, + int (*f_sni)(void *, mbedtls_ssl_context *, + const unsigned char *, size_t), + void *p_sni ) +{ + conf->f_sni = f_sni; + conf->p_sni = p_sni; +} +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ + +#if defined(MBEDTLS_SSL_ALPN) +int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos ) +{ + size_t cur_len, tot_len; + const char **p; + + /* + * "Empty strings MUST NOT be included and byte strings MUST NOT be + * truncated". Check lengths now rather than later. + */ + tot_len = 0; + for( p = protos; *p != NULL; p++ ) + { + cur_len = strlen( *p ); + tot_len += cur_len; + + if( cur_len == 0 || cur_len > 255 || tot_len > 65535 ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + conf->alpn_list = protos; + + return( 0 ); +} + +const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl ) +{ + return( ssl->alpn_chosen ); +} +#endif /* MBEDTLS_SSL_ALPN */ + +void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor ) +{ + conf->max_major_ver = major; + conf->max_minor_ver = minor; +} + +void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor ) +{ + conf->min_major_ver = major; + conf->min_minor_ver = minor; +} + +#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C) +void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback ) +{ + conf->fallback = fallback; +} +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm ) +{ + conf->encrypt_then_mac = etm; +} +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems ) +{ + conf->extended_ms = ems; +} +#endif + +#if defined(MBEDTLS_ARC4_C) +void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 ) +{ + conf->arc4_disabled = arc4; +} +#endif + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code ) +{ + if( mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID || + mfl_code_to_length[mfl_code] > MBEDTLS_SSL_MAX_CONTENT_LEN ) + { + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + conf->mfl_code = mfl_code; + + return( 0 ); +} +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate ) +{ + conf->trunc_hmac = truncate; +} +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ + +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) +void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split ) +{ + conf->cbc_record_splitting = split; +} +#endif + +void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy ) +{ + conf->allow_legacy_renegotiation = allow_legacy; +} + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation ) +{ + conf->disable_renegotiation = renegotiation; +} + +void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records ) +{ + conf->renego_max_records = max_records; +} + +void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf, + const unsigned char period[8] ) +{ + memcpy( conf->renego_period, period, 8 ); +} +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +#if defined(MBEDTLS_SSL_CLI_C) +void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets ) +{ + conf->session_tickets = use_tickets; +} +#endif + +#if defined(MBEDTLS_SSL_SRV_C) +void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf, + mbedtls_ssl_ticket_write_t *f_ticket_write, + mbedtls_ssl_ticket_parse_t *f_ticket_parse, + void *p_ticket ) +{ + conf->f_ticket_write = f_ticket_write; + conf->f_ticket_parse = f_ticket_parse; + conf->p_ticket = p_ticket; +} +#endif +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_SSL_EXPORT_KEYS) +void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf, + mbedtls_ssl_export_keys_t *f_export_keys, + void *p_export_keys ) +{ + conf->f_export_keys = f_export_keys; + conf->p_export_keys = p_export_keys; +} +#endif + +/* + * SSL get accessors + */ +size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl ) +{ + return( ssl->in_offt == NULL ? 0 : ssl->in_msglen ); +} + +uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl ) +{ + if( ssl->session != NULL ) + return( ssl->session->verify_result ); + + if( ssl->session_negotiate != NULL ) + return( ssl->session_negotiate->verify_result ); + + return( 0xFFFFFFFF ); +} + +const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl ) +{ + if( ssl == NULL || ssl->session == NULL ) + return( NULL ); + + return mbedtls_ssl_get_ciphersuite_name( ssl->session->ciphersuite ); +} + +const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl ) +{ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + switch( ssl->minor_ver ) + { + case MBEDTLS_SSL_MINOR_VERSION_2: + return( "DTLSv1.0" ); + + case MBEDTLS_SSL_MINOR_VERSION_3: + return( "DTLSv1.2" ); + + default: + return( "unknown (DTLS)" ); + } + } +#endif + + switch( ssl->minor_ver ) + { + case MBEDTLS_SSL_MINOR_VERSION_0: + return( "SSLv3.0" ); + + case MBEDTLS_SSL_MINOR_VERSION_1: + return( "TLSv1.0" ); + + case MBEDTLS_SSL_MINOR_VERSION_2: + return( "TLSv1.1" ); + + case MBEDTLS_SSL_MINOR_VERSION_3: + return( "TLSv1.2" ); + + default: + return( "unknown" ); + } +} + +int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl ) +{ + size_t transform_expansion; + const mbedtls_ssl_transform *transform = ssl->transform_out; + +#if defined(MBEDTLS_ZLIB_SUPPORT) + if( ssl->session_out->compression != MBEDTLS_SSL_COMPRESS_NULL ) + return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); +#endif + + if( transform == NULL ) + return( (int) mbedtls_ssl_hdr_len( ssl ) ); + + switch( mbedtls_cipher_get_cipher_mode( &transform->cipher_ctx_enc ) ) + { + case MBEDTLS_MODE_GCM: + case MBEDTLS_MODE_CCM: + case MBEDTLS_MODE_STREAM: + transform_expansion = transform->minlen; + break; + + case MBEDTLS_MODE_CBC: + transform_expansion = transform->maclen + + mbedtls_cipher_get_block_size( &transform->cipher_ctx_enc ); + break; + + default: + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + + return( (int)( mbedtls_ssl_hdr_len( ssl ) + transform_expansion ) ); +} + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl ) +{ + size_t max_len; + + /* + * Assume mfl_code is correct since it was checked when set + */ + max_len = mfl_code_to_length[ssl->conf->mfl_code]; + + /* + * Check if a smaller max length was negotiated + */ + if( ssl->session_out != NULL && + mfl_code_to_length[ssl->session_out->mfl_code] < max_len ) + { + max_len = mfl_code_to_length[ssl->session_out->mfl_code]; + } + + return max_len; +} +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl ) +{ + if( ssl == NULL || ssl->session == NULL ) + return( NULL ); + + return( ssl->session->peer_cert ); +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_CLI_C) +int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl, mbedtls_ssl_session *dst ) +{ + if( ssl == NULL || + dst == NULL || + ssl->session == NULL || + ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT ) + { + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + + return( ssl_session_copy( dst, ssl->session ) ); +} +#endif /* MBEDTLS_SSL_CLI_C */ + +/* + * Perform a single step of the SSL handshake + */ +int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + + if( ssl == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + +#if defined(MBEDTLS_SSL_CLI_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + ret = mbedtls_ssl_handshake_client_step( ssl ); +#endif +#if defined(MBEDTLS_SSL_SRV_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + ret = mbedtls_ssl_handshake_server_step( ssl ); +#endif + + return( ret ); +} + +/* + * Perform the SSL handshake + */ +int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl ) +{ + int ret = 0; + + if( ssl == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> handshake" ) ); + + while( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) + { + ret = mbedtls_ssl_handshake_step( ssl ); + + if( ret != 0 ) + break; + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= handshake" ) ); + + return( ret ); +} + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +#if defined(MBEDTLS_SSL_SRV_C) +/* + * Write HelloRequest to request renegotiation on server + */ +static int ssl_write_hello_request( mbedtls_ssl_context *ssl ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello request" ) ); + + ssl->out_msglen = 4; + ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; + ssl->out_msg[0] = MBEDTLS_SSL_HS_HELLO_REQUEST; + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello request" ) ); + + return( 0 ); +} +#endif /* MBEDTLS_SSL_SRV_C */ + +/* + * Actually renegotiate current connection, triggered by either: + * - any side: calling mbedtls_ssl_renegotiate(), + * - client: receiving a HelloRequest during mbedtls_ssl_read(), + * - server: receiving any handshake message on server during mbedtls_ssl_read() after + * the initial handshake is completed. + * If the handshake doesn't complete due to waiting for I/O, it will continue + * during the next calls to mbedtls_ssl_renegotiate() or mbedtls_ssl_read() respectively. + */ +static int ssl_start_renegotiation( mbedtls_ssl_context *ssl ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> renegotiate" ) ); + + if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) + return( ret ); + + /* RFC 6347 4.2.2: "[...] the HelloRequest will have message_seq = 0 and + * the ServerHello will have message_seq = 1" */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) + { + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + ssl->handshake->out_msg_seq = 1; + else + ssl->handshake->in_msg_seq = 1; + } +#endif + + ssl->state = MBEDTLS_SSL_HELLO_REQUEST; + ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS; + + if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); + return( ret ); + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= renegotiate" ) ); + + return( 0 ); +} + +/* + * Renegotiate current connection on client, + * or request renegotiation on server + */ +int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl ) +{ + int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; + + if( ssl == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + +#if defined(MBEDTLS_SSL_SRV_C) + /* On server, just send the request */ + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + { + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING; + + /* Did we already try/start sending HelloRequest? */ + if( ssl->out_left != 0 ) + return( mbedtls_ssl_flush_output( ssl ) ); + + return( ssl_write_hello_request( ssl ) ); + } +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_CLI_C) + /* + * On client, either start the renegotiation process or, + * if already in progress, continue the handshake + */ + if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) + { + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + if( ( ret = ssl_start_renegotiation( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret ); + return( ret ); + } + } + else + { + if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); + return( ret ); + } + } +#endif /* MBEDTLS_SSL_CLI_C */ + + return( ret ); +} + +/* + * Check record counters and renegotiate if they're above the limit. + */ +static int ssl_check_ctr_renegotiate( mbedtls_ssl_context *ssl ) +{ + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER || + ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING || + ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED ) + { + return( 0 ); + } + + if( memcmp( ssl->in_ctr, ssl->conf->renego_period, 8 ) <= 0 && + memcmp( ssl->out_ctr, ssl->conf->renego_period, 8 ) <= 0 ) + { + return( 0 ); + } + + MBEDTLS_SSL_DEBUG_MSG( 1, ( "record counter limit reached: renegotiate" ) ); + return( mbedtls_ssl_renegotiate( ssl ) ); +} +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/* + * Receive application data decrypted from the SSL layer + */ +int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len ) +{ + int ret, record_read = 0; + size_t n; + + if( ssl == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read" ) ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) + return( ret ); + + if( ssl->handshake != NULL && + ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) + { + if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) + return( ret ); + } + } +#endif + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ( ret = ssl_check_ctr_renegotiate( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret ); + return( ret ); + } +#endif + + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) + { + ret = mbedtls_ssl_handshake( ssl ); + if( ret == MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO ) + { + record_read = 1; + } + else if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); + return( ret ); + } + } + + if( ssl->in_offt == NULL ) + { + /* Start timer if not already running */ + if( ssl->f_get_timer != NULL && + ssl->f_get_timer( ssl->p_timer ) == -1 ) + { + ssl_set_timer( ssl, ssl->conf->read_timeout ); + } + + if( ! record_read ) + { + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_SSL_CONN_EOF ) + return( 0 ); + + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + } + + if( ssl->in_msglen == 0 && + ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA ) + { + /* + * OpenSSL sends empty messages to randomize the IV + */ + if( ( ret = mbedtls_ssl_read_record( ssl ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_SSL_CONN_EOF ) + return( 0 ); + + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + return( ret ); + } + } + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "received handshake message" ) ); + +#if defined(MBEDTLS_SSL_CLI_C) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && + ( ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_REQUEST || + ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not HelloRequest)" ) ); + + /* With DTLS, drop the packet (probably from last handshake) */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + return( MBEDTLS_ERR_SSL_WANT_READ ); +#endif + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not ClientHello)" ) ); + + /* With DTLS, drop the packet (probably from last handshake) */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + return( MBEDTLS_ERR_SSL_WANT_READ ); +#endif + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } +#endif + + if( ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED || + ( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && + ssl->conf->allow_legacy_renegotiation == + MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) ) + { + MBEDTLS_SSL_DEBUG_MSG( 3, ( "refusing renegotiation, sending alert" ) ); + +#if defined(MBEDTLS_SSL_PROTO_SSL3) + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + { + /* + * SSLv3 does not have a "no_renegotiation" alert + */ + if( ( ret = mbedtls_ssl_send_fatal_handshake_failure( ssl ) ) != 0 ) + return( ret ); + } + else +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 ) + { + if( ( ret = mbedtls_ssl_send_alert_message( ssl, + MBEDTLS_SSL_ALERT_LEVEL_WARNING, + MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) ) != 0 ) + { + return( ret ); + } + } + else +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || + MBEDTLS_SSL_PROTO_TLS1_2 */ + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + } + } + else + { + /* DTLS clients need to know renego is server-initiated */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + { + ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING; + } +#endif + ret = ssl_start_renegotiation( ssl ); + if( ret == MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO ) + { + record_read = 1; + } + else if( ret != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret ); + return( ret ); + } + } + + /* If a non-handshake record was read during renego, fallthrough, + * else tell the user they should call mbedtls_ssl_read() again */ + if( ! record_read ) + return( MBEDTLS_ERR_SSL_WANT_READ ); + } + else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) + { + + if( ssl->conf->renego_max_records >= 0 ) + { + if( ++ssl->renego_records_seen > ssl->conf->renego_max_records ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, " + "but not honored by client" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + } + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + /* Fatal and closure alerts handled by mbedtls_ssl_read_record() */ + if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "ignoring non-fatal non-closure alert" ) ); + return( MBEDTLS_ERR_SSL_WANT_READ ); + } + + if( ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad application data message" ) ); + return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + } + + ssl->in_offt = ssl->in_msg; + + /* We're going to return something now, cancel timer, + * except if handshake (renegotiation) is in progress */ + if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) + ssl_set_timer( ssl, 0 ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + /* If we requested renego but received AppData, resend HelloRequest. + * Do it now, after setting in_offt, to avoid taking this branch + * again if ssl_write_hello_request() returns WANT_WRITE */ +#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) + if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && + ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) + { + if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret ); + return( ret ); + } + } +#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */ +#endif + } + + n = ( len < ssl->in_msglen ) + ? len : ssl->in_msglen; + + memcpy( buf, ssl->in_offt, n ); + ssl->in_msglen -= n; + + if( ssl->in_msglen == 0 ) + /* all bytes consumed */ + ssl->in_offt = NULL; + else + /* more data available */ + ssl->in_offt += n; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read" ) ); + + return( (int) n ); +} + +/* + * Send application data to be encrypted by the SSL layer, + * taking care of max fragment length and buffer size + */ +static int ssl_write_real( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ + int ret; +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + size_t max_len = mbedtls_ssl_get_max_frag_len( ssl ); + + if( len > max_len ) + { +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + MBEDTLS_SSL_DEBUG_MSG( 1, ( "fragment larger than the (negotiated) " + "maximum fragment length: %d > %d", + len, max_len ) ); + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + } + else +#endif + len = max_len; + } +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + + if( ssl->out_left != 0 ) + { + if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret ); + return( ret ); + } + } + else + { + ssl->out_msglen = len; + ssl->out_msgtype = MBEDTLS_SSL_MSG_APPLICATION_DATA; + memcpy( ssl->out_msg, buf, len ); + + if( ( ret = mbedtls_ssl_write_record( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); + return( ret ); + } + } + + return( (int) len ); +} + +/* + * Write application data, doing 1/n-1 splitting if necessary. + * + * With non-blocking I/O, ssl_write_real() may return WANT_WRITE, + * then the caller will call us again with the same arguments, so + * remember wether we already did the split or not. + */ +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) +static int ssl_write_split( mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len ) +{ + int ret; + + if( ssl->conf->cbc_record_splitting == + MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED || + len <= 1 || + ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_1 || + mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc ) + != MBEDTLS_MODE_CBC ) + { + return( ssl_write_real( ssl, buf, len ) ); + } + + if( ssl->split_done == 0 ) + { + if( ( ret = ssl_write_real( ssl, buf, 1 ) ) <= 0 ) + return( ret ); + ssl->split_done = 1; + } + + if( ( ret = ssl_write_real( ssl, buf + 1, len - 1 ) ) <= 0 ) + return( ret ); + ssl->split_done = 0; + + return( ret + 1 ); +} +#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */ + +/* + * Write application data (public-facing wrapper) + */ +int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) +{ + int ret; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write" ) ); + + if( ssl == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( ( ret = ssl_check_ctr_renegotiate( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret ); + return( ret ); + } +#endif + + if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) + { + if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); + return( ret ); + } + } + +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) + ret = ssl_write_split( ssl, buf, len ); +#else + ret = ssl_write_real( ssl, buf, len ); +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write" ) ); + + return( ret ); +} + +/* + * Notify the peer that the connection is being closed + */ +int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl ) +{ + int ret; + + if( ssl == NULL || ssl->conf == NULL ) + return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write close notify" ) ); + + if( ssl->out_left != 0 ) + return( mbedtls_ssl_flush_output( ssl ) ); + + if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) + { + if( ( ret = mbedtls_ssl_send_alert_message( ssl, + MBEDTLS_SSL_ALERT_LEVEL_WARNING, + MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY ) ) != 0 ) + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_send_alert_message", ret ); + return( ret ); + } + } + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write close notify" ) ); + + return( 0 ); +} + +void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform ) +{ + if( transform == NULL ) + return; + +#if defined(MBEDTLS_ZLIB_SUPPORT) + deflateEnd( &transform->ctx_deflate ); + inflateEnd( &transform->ctx_inflate ); +#endif + + mbedtls_cipher_free( &transform->cipher_ctx_enc ); + mbedtls_cipher_free( &transform->cipher_ctx_dec ); + + mbedtls_md_free( &transform->md_ctx_enc ); + mbedtls_md_free( &transform->md_ctx_dec ); + + mbedtls_zeroize( transform, sizeof( mbedtls_ssl_transform ) ); +} + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +static void ssl_key_cert_free( mbedtls_ssl_key_cert *key_cert ) +{ + mbedtls_ssl_key_cert *cur = key_cert, *next; + + while( cur != NULL ) + { + next = cur->next; + mbedtls_free( cur ); + cur = next; + } +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +void mbedtls_ssl_handshake_free( mbedtls_ssl_handshake_params *handshake ) +{ + if( handshake == NULL ) + return; + +#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ + defined(MBEDTLS_SSL_PROTO_TLS1_1) + mbedtls_md5_free( &handshake->fin_md5 ); + mbedtls_sha1_free( &handshake->fin_sha1 ); +#endif +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) +#if defined(MBEDTLS_SHA256_C) + mbedtls_sha256_free( &handshake->fin_sha256 ); +#endif +#if defined(MBEDTLS_SHA512_C) + mbedtls_sha512_free( &handshake->fin_sha512 ); +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +#if defined(MBEDTLS_DHM_C) + mbedtls_dhm_free( &handshake->dhm_ctx ); +#endif +#if defined(MBEDTLS_ECDH_C) + mbedtls_ecdh_free( &handshake->ecdh_ctx ); +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + mbedtls_ecjpake_free( &handshake->ecjpake_ctx ); +#if defined(MBEDTLS_SSL_CLI_C) + mbedtls_free( handshake->ecjpake_cache ); + handshake->ecjpake_cache = NULL; + handshake->ecjpake_cache_len = 0; +#endif +#endif + +#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + /* explicit void pointer cast for buggy MS compiler */ + mbedtls_free( (void *) handshake->curves ); +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + if( handshake->psk != NULL ) + { + mbedtls_zeroize( handshake->psk, handshake->psk_len ); + mbedtls_free( handshake->psk ); + } +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ + defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + /* + * Free only the linked list wrapper, not the keys themselves + * since the belong to the SNI callback + */ + if( handshake->sni_key_cert != NULL ) + { + mbedtls_ssl_key_cert *cur = handshake->sni_key_cert, *next; + + while( cur != NULL ) + { + next = cur->next; + mbedtls_free( cur ); + cur = next; + } + } +#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_SERVER_NAME_INDICATION */ + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + mbedtls_free( handshake->verify_cookie ); + mbedtls_free( handshake->hs_msg ); + ssl_flight_free( handshake->flight ); +#endif + + mbedtls_zeroize( handshake, sizeof( mbedtls_ssl_handshake_params ) ); +} + +void mbedtls_ssl_session_free( mbedtls_ssl_session *session ) +{ + if( session == NULL ) + return; + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + if( session->peer_cert != NULL ) + { + mbedtls_x509_crt_free( session->peer_cert ); + mbedtls_free( session->peer_cert ); + } +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) + mbedtls_free( session->ticket ); +#endif + + mbedtls_zeroize( session, sizeof( mbedtls_ssl_session ) ); +} + +/* + * Free an SSL context + */ +void mbedtls_ssl_free( mbedtls_ssl_context *ssl ) +{ + if( ssl == NULL ) + return; + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> free" ) ); + + if( ssl->out_buf != NULL ) + { + mbedtls_zeroize( ssl->out_buf, MBEDTLS_SSL_BUFFER_LEN ); + mbedtls_free( ssl->out_buf ); + } + + if( ssl->in_buf != NULL ) + { + mbedtls_zeroize( ssl->in_buf, MBEDTLS_SSL_BUFFER_LEN ); + mbedtls_free( ssl->in_buf ); + } + +#if defined(MBEDTLS_ZLIB_SUPPORT) + if( ssl->compress_buf != NULL ) + { + mbedtls_zeroize( ssl->compress_buf, MBEDTLS_SSL_BUFFER_LEN ); + mbedtls_free( ssl->compress_buf ); + } +#endif + + if( ssl->transform ) + { + mbedtls_ssl_transform_free( ssl->transform ); + mbedtls_free( ssl->transform ); + } + + if( ssl->handshake ) + { + mbedtls_ssl_handshake_free( ssl->handshake ); + mbedtls_ssl_transform_free( ssl->transform_negotiate ); + mbedtls_ssl_session_free( ssl->session_negotiate ); + + mbedtls_free( ssl->handshake ); + mbedtls_free( ssl->transform_negotiate ); + mbedtls_free( ssl->session_negotiate ); + } + + if( ssl->session ) + { + mbedtls_ssl_session_free( ssl->session ); + mbedtls_free( ssl->session ); + } + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + if( ssl->hostname != NULL ) + { + mbedtls_zeroize( ssl->hostname, strlen( ssl->hostname ) ); + mbedtls_free( ssl->hostname ); + } +#endif + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + if( mbedtls_ssl_hw_record_finish != NULL ) + { + MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_finish()" ) ); + mbedtls_ssl_hw_record_finish( ssl ); + } +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) + mbedtls_free( ssl->cli_id ); +#endif + + MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= free" ) ); + + /* Actually clear after last debug message */ + mbedtls_zeroize( ssl, sizeof( mbedtls_ssl_context ) ); +} + +/* + * Initialze mbedtls_ssl_config + */ +void mbedtls_ssl_config_init( mbedtls_ssl_config *conf ) +{ + memset( conf, 0, sizeof( mbedtls_ssl_config ) ); +} + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +static int ssl_preset_default_hashes[] = { +#if defined(MBEDTLS_SHA512_C) + MBEDTLS_MD_SHA512, + MBEDTLS_MD_SHA384, +#endif +#if defined(MBEDTLS_SHA256_C) + MBEDTLS_MD_SHA256, + MBEDTLS_MD_SHA224, +#endif +#if defined(MBEDTLS_SHA1_C) + MBEDTLS_MD_SHA1, +#endif + MBEDTLS_MD_NONE +}; +#endif + +static int ssl_preset_suiteb_ciphersuites[] = { + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, + MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, + 0 +}; + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +static int ssl_preset_suiteb_hashes[] = { + MBEDTLS_MD_SHA256, + MBEDTLS_MD_SHA384, + MBEDTLS_MD_NONE +}; +#endif + +#if defined(MBEDTLS_ECP_C) +static mbedtls_ecp_group_id ssl_preset_suiteb_curves[] = { + MBEDTLS_ECP_DP_SECP256R1, + MBEDTLS_ECP_DP_SECP384R1, + MBEDTLS_ECP_DP_NONE +}; +#endif + +/* + * Load default in mbedtls_ssl_config + */ +int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, + int endpoint, int transport, int preset ) +{ +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) + int ret; +#endif + + /* Use the functions here so that they are covered in tests, + * but otherwise access member directly for efficiency */ + mbedtls_ssl_conf_endpoint( conf, endpoint ); + mbedtls_ssl_conf_transport( conf, transport ); + + /* + * Things that are common to all presets + */ +#if defined(MBEDTLS_SSL_CLI_C) + if( endpoint == MBEDTLS_SSL_IS_CLIENT ) + { + conf->authmode = MBEDTLS_SSL_VERIFY_REQUIRED; +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + conf->session_tickets = MBEDTLS_SSL_SESSION_TICKETS_ENABLED; +#endif + } +#endif + +#if defined(MBEDTLS_ARC4_C) + conf->arc4_disabled = MBEDTLS_SSL_ARC4_DISABLED; +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + conf->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED; +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + conf->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; +#endif + +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) + conf->cbc_record_splitting = MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED; +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) + conf->f_cookie_write = ssl_cookie_write_dummy; + conf->f_cookie_check = ssl_cookie_check_dummy; +#endif + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + conf->anti_replay = MBEDTLS_SSL_ANTI_REPLAY_ENABLED; +#endif + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + conf->hs_timeout_min = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN; + conf->hs_timeout_max = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX; +#endif + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + conf->renego_max_records = MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT; + memset( conf->renego_period, 0xFF, 7 ); + conf->renego_period[7] = 0x00; +#endif + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) + if( endpoint == MBEDTLS_SSL_IS_SERVER ) + { + if( ( ret = mbedtls_ssl_conf_dh_param( conf, + MBEDTLS_DHM_RFC5114_MODP_2048_P, + MBEDTLS_DHM_RFC5114_MODP_2048_G ) ) != 0 ) + { + return( ret ); + } + } +#endif + + /* + * Preset-specific defaults + */ + switch( preset ) + { + /* + * NSA Suite B + */ + case MBEDTLS_SSL_PRESET_SUITEB: + conf->min_major_ver = MBEDTLS_SSL_MAJOR_VERSION_3; + conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_3; /* TLS 1.2 */ + conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION; + conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION; + + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = + ssl_preset_suiteb_ciphersuites; + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + conf->cert_profile = &mbedtls_x509_crt_profile_suiteb; +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) + conf->sig_hashes = ssl_preset_suiteb_hashes; +#endif + +#if defined(MBEDTLS_ECP_C) + conf->curve_list = ssl_preset_suiteb_curves; +#endif + break; + + /* + * Default + */ + default: + conf->min_major_ver = MBEDTLS_SSL_MAJOR_VERSION_3; + conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_1; /* TLS 1.0 */ + conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION; + conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION; + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_2; +#endif + + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = + mbedtls_ssl_list_ciphersuites(); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + conf->cert_profile = &mbedtls_x509_crt_profile_default; +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) + conf->sig_hashes = ssl_preset_default_hashes; +#endif + +#if defined(MBEDTLS_ECP_C) + conf->curve_list = mbedtls_ecp_grp_id_list(); +#endif + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) + conf->dhm_min_bitlen = 1024; +#endif + } + + return( 0 ); +} + +/* + * Free mbedtls_ssl_config + */ +void mbedtls_ssl_config_free( mbedtls_ssl_config *conf ) +{ +#if defined(MBEDTLS_DHM_C) + mbedtls_mpi_free( &conf->dhm_P ); + mbedtls_mpi_free( &conf->dhm_G ); +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + if( conf->psk != NULL ) + { + mbedtls_zeroize( conf->psk, conf->psk_len ); + mbedtls_zeroize( conf->psk_identity, conf->psk_identity_len ); + mbedtls_free( conf->psk ); + mbedtls_free( conf->psk_identity ); + conf->psk_len = 0; + conf->psk_identity_len = 0; + } +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + ssl_key_cert_free( conf->key_cert ); +#endif + + mbedtls_zeroize( conf, sizeof( mbedtls_ssl_config ) ); +} + +#if defined(MBEDTLS_PK_C) && \ + ( defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) ) +/* + * Convert between MBEDTLS_PK_XXX and SSL_SIG_XXX + */ +unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk ) +{ +#if defined(MBEDTLS_RSA_C) + if( mbedtls_pk_can_do( pk, MBEDTLS_PK_RSA ) ) + return( MBEDTLS_SSL_SIG_RSA ); +#endif +#if defined(MBEDTLS_ECDSA_C) + if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECDSA ) ) + return( MBEDTLS_SSL_SIG_ECDSA ); +#endif + return( MBEDTLS_SSL_SIG_ANON ); +} + +mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig ) +{ + switch( sig ) + { +#if defined(MBEDTLS_RSA_C) + case MBEDTLS_SSL_SIG_RSA: + return( MBEDTLS_PK_RSA ); +#endif +#if defined(MBEDTLS_ECDSA_C) + case MBEDTLS_SSL_SIG_ECDSA: + return( MBEDTLS_PK_ECDSA ); +#endif + default: + return( MBEDTLS_PK_NONE ); + } +} +#endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_ECDSA_C ) */ + +/* + * Convert from MBEDTLS_SSL_HASH_XXX to MBEDTLS_MD_XXX + */ +mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash ) +{ + switch( hash ) + { +#if defined(MBEDTLS_MD5_C) + case MBEDTLS_SSL_HASH_MD5: + return( MBEDTLS_MD_MD5 ); +#endif +#if defined(MBEDTLS_SHA1_C) + case MBEDTLS_SSL_HASH_SHA1: + return( MBEDTLS_MD_SHA1 ); +#endif +#if defined(MBEDTLS_SHA256_C) + case MBEDTLS_SSL_HASH_SHA224: + return( MBEDTLS_MD_SHA224 ); + case MBEDTLS_SSL_HASH_SHA256: + return( MBEDTLS_MD_SHA256 ); +#endif +#if defined(MBEDTLS_SHA512_C) + case MBEDTLS_SSL_HASH_SHA384: + return( MBEDTLS_MD_SHA384 ); + case MBEDTLS_SSL_HASH_SHA512: + return( MBEDTLS_MD_SHA512 ); +#endif + default: + return( MBEDTLS_MD_NONE ); + } +} + +/* + * Convert from MBEDTLS_MD_XXX to MBEDTLS_SSL_HASH_XXX + */ +unsigned char mbedtls_ssl_hash_from_md_alg( int md ) +{ + switch( md ) + { +#if defined(MBEDTLS_MD5_C) + case MBEDTLS_MD_MD5: + return( MBEDTLS_SSL_HASH_MD5 ); +#endif +#if defined(MBEDTLS_SHA1_C) + case MBEDTLS_MD_SHA1: + return( MBEDTLS_SSL_HASH_SHA1 ); +#endif +#if defined(MBEDTLS_SHA256_C) + case MBEDTLS_MD_SHA224: + return( MBEDTLS_SSL_HASH_SHA224 ); + case MBEDTLS_MD_SHA256: + return( MBEDTLS_SSL_HASH_SHA256 ); +#endif +#if defined(MBEDTLS_SHA512_C) + case MBEDTLS_MD_SHA384: + return( MBEDTLS_SSL_HASH_SHA384 ); + case MBEDTLS_MD_SHA512: + return( MBEDTLS_SSL_HASH_SHA512 ); +#endif + default: + return( MBEDTLS_SSL_HASH_NONE ); + } +} + +#if defined(MBEDTLS_ECP_C) +/* + * Check if a curve proposed by the peer is in our list. + * Return 0 if we're willing to use it, -1 otherwise. + */ +int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id ) +{ + const mbedtls_ecp_group_id *gid; + + if( ssl->conf->curve_list == NULL ) + return( -1 ); + + for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ ) + if( *gid == grp_id ) + return( 0 ); + + return( -1 ); +} +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) +/* + * Check if a hash proposed by the peer is in our list. + * Return 0 if we're willing to use it, -1 otherwise. + */ +int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl, + mbedtls_md_type_t md ) +{ + const int *cur; + + if( ssl->conf->sig_hashes == NULL ) + return( -1 ); + + for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ ) + if( *cur == (int) md ) + return( 0 ); + + return( -1 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, + const mbedtls_ssl_ciphersuite_t *ciphersuite, + int cert_endpoint, + uint32_t *flags ) +{ + int ret = 0; +#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) + int usage = 0; +#endif +#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) + const char *ext_oid; + size_t ext_len; +#endif + +#if !defined(MBEDTLS_X509_CHECK_KEY_USAGE) && \ + !defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) + ((void) cert); + ((void) cert_endpoint); + ((void) flags); +#endif + +#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) + if( cert_endpoint == MBEDTLS_SSL_IS_SERVER ) + { + /* Server part of the key exchange */ + switch( ciphersuite->key_exchange ) + { + case MBEDTLS_KEY_EXCHANGE_RSA: + case MBEDTLS_KEY_EXCHANGE_RSA_PSK: + usage = MBEDTLS_X509_KU_KEY_ENCIPHERMENT; + break; + + case MBEDTLS_KEY_EXCHANGE_DHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE; + break; + + case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: + usage = MBEDTLS_X509_KU_KEY_AGREEMENT; + break; + + /* Don't use default: we want warnings when adding new values */ + case MBEDTLS_KEY_EXCHANGE_NONE: + case MBEDTLS_KEY_EXCHANGE_PSK: + case MBEDTLS_KEY_EXCHANGE_DHE_PSK: + case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: + case MBEDTLS_KEY_EXCHANGE_ECJPAKE: + usage = 0; + } + } + else + { + /* Client auth: we only implement rsa_sign and mbedtls_ecdsa_sign for now */ + usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE; + } + + if( mbedtls_x509_crt_check_key_usage( cert, usage ) != 0 ) + { + *flags |= MBEDTLS_X509_BADCERT_KEY_USAGE; + ret = -1; + } +#else + ((void) ciphersuite); +#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */ + +#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) + if( cert_endpoint == MBEDTLS_SSL_IS_SERVER ) + { + ext_oid = MBEDTLS_OID_SERVER_AUTH; + ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_SERVER_AUTH ); + } + else + { + ext_oid = MBEDTLS_OID_CLIENT_AUTH; + ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_CLIENT_AUTH ); + } + + if( mbedtls_x509_crt_check_extended_key_usage( cert, ext_oid, ext_len ) != 0 ) + { + *flags |= MBEDTLS_X509_BADCERT_EXT_KEY_USAGE; + ret = -1; + } +#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */ + + return( ret ); +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/* + * Convert version numbers to/from wire format + * and, for DTLS, to/from TLS equivalent. + * + * For TLS this is the identity. + * For DTLS, use one complement (v -> 255 - v, and then map as follows: + * 1.0 <-> 3.2 (DTLS 1.0 is based on TLS 1.1) + * 1.x <-> 3.x+1 for x != 0 (DTLS 1.2 based on TLS 1.2) + */ +void mbedtls_ssl_write_version( int major, int minor, int transport, + unsigned char ver[2] ) +{ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + if( minor == MBEDTLS_SSL_MINOR_VERSION_2 ) + --minor; /* DTLS 1.0 stored as TLS 1.1 internally */ + + ver[0] = (unsigned char)( 255 - ( major - 2 ) ); + ver[1] = (unsigned char)( 255 - ( minor - 1 ) ); + } + else +#else + ((void) transport); +#endif + { + ver[0] = (unsigned char) major; + ver[1] = (unsigned char) minor; + } +} + +void mbedtls_ssl_read_version( int *major, int *minor, int transport, + const unsigned char ver[2] ) +{ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + *major = 255 - ver[0] + 2; + *minor = 255 - ver[1] + 1; + + if( *minor == MBEDTLS_SSL_MINOR_VERSION_1 ) + ++*minor; /* DTLS 1.0 stored as TLS 1.1 internally */ + } + else +#else + ((void) transport); +#endif + { + *major = ver[0]; + *minor = ver[1]; + } +} + +int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md ) +{ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) + return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; + + switch( md ) + { +#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) +#if defined(MBEDTLS_MD5_C) + case MBEDTLS_SSL_HASH_MD5: + ssl->handshake->calc_verify = ssl_calc_verify_tls; + break; +#endif +#if defined(MBEDTLS_SHA1_C) + case MBEDTLS_SSL_HASH_SHA1: + ssl->handshake->calc_verify = ssl_calc_verify_tls; + break; +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ +#if defined(MBEDTLS_SHA512_C) + case MBEDTLS_SSL_HASH_SHA384: + ssl->handshake->calc_verify = ssl_calc_verify_tls_sha384; + break; +#endif +#if defined(MBEDTLS_SHA256_C) + case MBEDTLS_SSL_HASH_SHA256: + ssl->handshake->calc_verify = ssl_calc_verify_tls_sha256; + break; +#endif + default: + return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; + } + + return 0; +#else /* !MBEDTLS_SSL_PROTO_TLS1_2 */ + (void) ssl; + (void) md; + + return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ +} + +#endif /* MBEDTLS_SSL_TLS_C */ diff --git a/mbedtls/threading.c b/mbedtls/threading.c new file mode 100644 index 0000000..83ec01a --- /dev/null +++ b/mbedtls/threading.c @@ -0,0 +1,137 @@ +/* + * Threading abstraction layer + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_THREADING_C) + +#include "mbedtls/threading.h" + +#if defined(MBEDTLS_THREADING_PTHREAD) +static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex ) +{ + if( mutex == NULL || mutex->is_valid ) + return; + + mutex->is_valid = pthread_mutex_init( &mutex->mutex, NULL ) == 0; +} + +static void threading_mutex_free_pthread( mbedtls_threading_mutex_t *mutex ) +{ + if( mutex == NULL || !mutex->is_valid ) + return; + + (void) pthread_mutex_destroy( &mutex->mutex ); + mutex->is_valid = 0; +} + +static int threading_mutex_lock_pthread( mbedtls_threading_mutex_t *mutex ) +{ + if( mutex == NULL || ! mutex->is_valid ) + return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA ); + + if( pthread_mutex_lock( &mutex->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); + + return( 0 ); +} + +static int threading_mutex_unlock_pthread( mbedtls_threading_mutex_t *mutex ) +{ + if( mutex == NULL || ! mutex->is_valid ) + return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA ); + + if( pthread_mutex_unlock( &mutex->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); + + return( 0 ); +} + +void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init_pthread; +void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free_pthread; +int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_pthread; +int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread; + +/* + * With phtreads we can statically initialize mutexes + */ +#define MUTEX_INIT = { PTHREAD_MUTEX_INITIALIZER, 1 } + +#endif /* MBEDTLS_THREADING_PTHREAD */ + +#if defined(MBEDTLS_THREADING_ALT) +static int threading_mutex_fail( mbedtls_threading_mutex_t *mutex ) +{ + ((void) mutex ); + return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA ); +} +static void threading_mutex_dummy( mbedtls_threading_mutex_t *mutex ) +{ + ((void) mutex ); + return; +} + +void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy; +void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy; +int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail; +int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail; + +/* + * Set functions pointers and initialize global mutexes + */ +void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ), + void (*mutex_free)( mbedtls_threading_mutex_t * ), + int (*mutex_lock)( mbedtls_threading_mutex_t * ), + int (*mutex_unlock)( mbedtls_threading_mutex_t * ) ) +{ + mbedtls_mutex_init = mutex_init; + mbedtls_mutex_free = mutex_free; + mbedtls_mutex_lock = mutex_lock; + mbedtls_mutex_unlock = mutex_unlock; + + mbedtls_mutex_init( &mbedtls_threading_readdir_mutex ); + mbedtls_mutex_init( &mbedtls_threading_gmtime_mutex ); +} + +/* + * Free global mutexes + */ +void mbedtls_threading_free_alt( void ) +{ + mbedtls_mutex_free( &mbedtls_threading_readdir_mutex ); + mbedtls_mutex_free( &mbedtls_threading_gmtime_mutex ); +} +#endif /* MBEDTLS_THREADING_ALT */ + +/* + * Define global mutexes + */ +#ifndef MUTEX_INIT +#define MUTEX_INIT +#endif +mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex MUTEX_INIT; +mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex MUTEX_INIT; + +#endif /* MBEDTLS_THREADING_C */ diff --git a/mbedtls/timing.c b/mbedtls/timing.c new file mode 100644 index 0000000..a7c7ff0 --- /dev/null +++ b/mbedtls/timing.c @@ -0,0 +1,525 @@ +/* + * Portable interface to the CPU cycle counter + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif + +#if defined(MBEDTLS_TIMING_C) + +#include "mbedtls/timing.h" + +#if !defined(MBEDTLS_TIMING_ALT) + +#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \ + !defined(__APPLE__) && !defined(_WIN32) +#error "This module only works on Unix and Windows, see MBEDTLS_TIMING_C in config.h" +#endif + +#ifndef asm +#define asm __asm +#endif + +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) + +#include +#include + +struct _hr_time +{ + LARGE_INTEGER start; +}; + +#else + +#include +#include +#include +#include +#include + +struct _hr_time +{ + struct timeval start; +}; + +#endif /* _WIN32 && !EFIX64 && !EFI32 */ + +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + ( defined(_MSC_VER) && defined(_M_IX86) ) || defined(__WATCOMC__) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long tsc; + __asm rdtsc + __asm mov [tsc], eax + return( tsc ); +} +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + ( _MSC_VER && _M_IX86 ) || __WATCOMC__ */ + +/* some versions of mingw-64 have 32-bit longs even on x84_64 */ +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + defined(__GNUC__) && ( defined(__i386__) || ( \ + ( defined(__amd64__) || defined( __x86_64__) ) && __SIZEOF_LONG__ == 4 ) ) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long lo, hi; + asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) ); + return( lo ); +} +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + __GNUC__ && __i386__ */ + +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + defined(__GNUC__) && ( defined(__amd64__) || defined(__x86_64__) ) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long lo, hi; + asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) ); + return( lo | ( hi << 32 ) ); +} +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + __GNUC__ && ( __amd64__ || __x86_64__ ) */ + +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + defined(__GNUC__) && ( defined(__powerpc__) || defined(__ppc__) ) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long tbl, tbu0, tbu1; + + do + { + asm volatile( "mftbu %0" : "=r" (tbu0) ); + asm volatile( "mftb %0" : "=r" (tbl ) ); + asm volatile( "mftbu %0" : "=r" (tbu1) ); + } + while( tbu0 != tbu1 ); + + return( tbl ); +} +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + __GNUC__ && ( __powerpc__ || __ppc__ ) */ + +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + defined(__GNUC__) && defined(__sparc64__) + +#if defined(__OpenBSD__) +#warning OpenBSD does not allow access to tick register using software version instead +#else +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long tick; + asm volatile( "rdpr %%tick, %0;" : "=&r" (tick) ); + return( tick ); +} +#endif /* __OpenBSD__ */ +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + __GNUC__ && __sparc64__ */ + +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + defined(__GNUC__) && defined(__sparc__) && !defined(__sparc64__) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long tick; + asm volatile( ".byte 0x83, 0x41, 0x00, 0x00" ); + asm volatile( "mov %%g1, %0" : "=r" (tick) ); + return( tick ); +} +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + __GNUC__ && __sparc__ && !__sparc64__ */ + +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + defined(__GNUC__) && defined(__alpha__) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long cc; + asm volatile( "rpcc %0" : "=r" (cc) ); + return( cc & 0xFFFFFFFF ); +} +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + __GNUC__ && __alpha__ */ + +#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \ + defined(__GNUC__) && defined(__ia64__) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + unsigned long itc; + asm volatile( "mov %0 = ar.itc" : "=r" (itc) ); + return( itc ); +} +#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM && + __GNUC__ && __ia64__ */ + +#if !defined(HAVE_HARDCLOCK) && defined(_MSC_VER) && \ + !defined(EFIX64) && !defined(EFI32) + +#define HAVE_HARDCLOCK + +unsigned long mbedtls_timing_hardclock( void ) +{ + LARGE_INTEGER offset; + + QueryPerformanceCounter( &offset ); + + return( (unsigned long)( offset.QuadPart ) ); +} +#endif /* !HAVE_HARDCLOCK && _MSC_VER && !EFIX64 && !EFI32 */ + +#if !defined(HAVE_HARDCLOCK) + +#define HAVE_HARDCLOCK + +static int hardclock_init = 0; +static struct timeval tv_init; + +unsigned long mbedtls_timing_hardclock( void ) +{ + struct timeval tv_cur; + + if( hardclock_init == 0 ) + { + gettimeofday( &tv_init, NULL ); + hardclock_init = 1; + } + + gettimeofday( &tv_cur, NULL ); + return( ( tv_cur.tv_sec - tv_init.tv_sec ) * 1000000 + + ( tv_cur.tv_usec - tv_init.tv_usec ) ); +} +#endif /* !HAVE_HARDCLOCK */ + +volatile int mbedtls_timing_alarmed = 0; + +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) + +unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset ) +{ + unsigned long delta; + LARGE_INTEGER offset, hfreq; + struct _hr_time *t = (struct _hr_time *) val; + + QueryPerformanceCounter( &offset ); + QueryPerformanceFrequency( &hfreq ); + + delta = (unsigned long)( ( 1000 * + ( offset.QuadPart - t->start.QuadPart ) ) / + hfreq.QuadPart ); + + if( reset ) + QueryPerformanceCounter( &t->start ); + + return( delta ); +} + +/* It's OK to use a global because alarm() is supposed to be global anyway */ +static DWORD alarmMs; + +static DWORD WINAPI TimerProc( LPVOID TimerContext ) +{ + ((void) TimerContext); + Sleep( alarmMs ); + mbedtls_timing_alarmed = 1; + return( TRUE ); +} + +void mbedtls_set_alarm( int seconds ) +{ + DWORD ThreadId; + + mbedtls_timing_alarmed = 0; + alarmMs = seconds * 1000; + CloseHandle( CreateThread( NULL, 0, TimerProc, NULL, 0, &ThreadId ) ); +} + +#else /* _WIN32 && !EFIX64 && !EFI32 */ + +unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset ) +{ + unsigned long delta; + struct timeval offset; + struct _hr_time *t = (struct _hr_time *) val; + + gettimeofday( &offset, NULL ); + + if( reset ) + { + t->start.tv_sec = offset.tv_sec; + t->start.tv_usec = offset.tv_usec; + return( 0 ); + } + + delta = ( offset.tv_sec - t->start.tv_sec ) * 1000 + + ( offset.tv_usec - t->start.tv_usec ) / 1000; + + return( delta ); +} + +static void sighandler( int signum ) +{ + mbedtls_timing_alarmed = 1; + signal( signum, sighandler ); +} + +void mbedtls_set_alarm( int seconds ) +{ + mbedtls_timing_alarmed = 0; + signal( SIGALRM, sighandler ); + alarm( seconds ); +} + +#endif /* _WIN32 && !EFIX64 && !EFI32 */ + +/* + * Set delays to watch + */ +void mbedtls_timing_set_delay( void *data, uint32_t int_ms, uint32_t fin_ms ) +{ + mbedtls_timing_delay_context *ctx = (mbedtls_timing_delay_context *) data; + + ctx->int_ms = int_ms; + ctx->fin_ms = fin_ms; + + if( fin_ms != 0 ) + (void) mbedtls_timing_get_timer( &ctx->timer, 1 ); +} + +/* + * Get number of delays expired + */ +int mbedtls_timing_get_delay( void *data ) +{ + mbedtls_timing_delay_context *ctx = (mbedtls_timing_delay_context *) data; + unsigned long elapsed_ms; + + if( ctx->fin_ms == 0 ) + return( -1 ); + + elapsed_ms = mbedtls_timing_get_timer( &ctx->timer, 0 ); + + if( elapsed_ms >= ctx->fin_ms ) + return( 2 ); + + if( elapsed_ms >= ctx->int_ms ) + return( 1 ); + + return( 0 ); +} + +#endif /* !MBEDTLS_TIMING_ALT */ + +#if defined(MBEDTLS_SELF_TEST) + +/* + * Busy-waits for the given number of milliseconds. + * Used for testing mbedtls_timing_hardclock. + */ +static void busy_msleep( unsigned long msec ) +{ + struct mbedtls_timing_hr_time hires; + unsigned long i = 0; /* for busy-waiting */ + volatile unsigned long j; /* to prevent optimisation */ + + (void) mbedtls_timing_get_timer( &hires, 1 ); + + while( mbedtls_timing_get_timer( &hires, 0 ) < msec ) + i++; + + j = i; + (void) j; +} + +#define FAIL do \ +{ \ + if( verbose != 0 ) \ + mbedtls_printf( "failed\n" ); \ + \ + return( 1 ); \ +} while( 0 ) + +/* + * Checkup routine + * + * Warning: this is work in progress, some tests may not be reliable enough + * yet! False positives may happen. + */ +int mbedtls_timing_self_test( int verbose ) +{ + unsigned long cycles, ratio; + unsigned long millisecs, secs; + int hardfail; + struct mbedtls_timing_hr_time hires; + uint32_t a, b; + mbedtls_timing_delay_context ctx; + + if( verbose != 0 ) + mbedtls_printf( " TIMING tests note: will take some time!\n" ); + + + if( verbose != 0 ) + mbedtls_printf( " TIMING test #1 (set_alarm / get_timer): " ); + + for( secs = 1; secs <= 3; secs++ ) + { + (void) mbedtls_timing_get_timer( &hires, 1 ); + + mbedtls_set_alarm( (int) secs ); + while( !mbedtls_timing_alarmed ) + ; + + millisecs = mbedtls_timing_get_timer( &hires, 0 ); + + /* For some reason on Windows it looks like alarm has an extra delay + * (maybe related to creating a new thread). Allow some room here. */ + if( millisecs < 800 * secs || millisecs > 1200 * secs + 300 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " TIMING test #2 (set/get_delay ): " ); + + for( a = 200; a <= 400; a += 200 ) + { + for( b = 200; b <= 400; b += 200 ) + { + mbedtls_timing_set_delay( &ctx, a, a + b ); + + busy_msleep( a - a / 8 ); + if( mbedtls_timing_get_delay( &ctx ) != 0 ) + FAIL; + + busy_msleep( a / 4 ); + if( mbedtls_timing_get_delay( &ctx ) != 1 ) + FAIL; + + busy_msleep( b - a / 8 - b / 8 ); + if( mbedtls_timing_get_delay( &ctx ) != 1 ) + FAIL; + + busy_msleep( b / 4 ); + if( mbedtls_timing_get_delay( &ctx ) != 2 ) + FAIL; + } + } + + mbedtls_timing_set_delay( &ctx, 0, 0 ); + busy_msleep( 200 ); + if( mbedtls_timing_get_delay( &ctx ) != -1 ) + FAIL; + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + + if( verbose != 0 ) + mbedtls_printf( " TIMING test #3 (hardclock / get_timer): " ); + + /* + * Allow one failure for possible counter wrapping. + * On a 4Ghz 32-bit machine the cycle counter wraps about once per second; + * since the whole test is about 10ms, it shouldn't happen twice in a row. + */ + hardfail = 0; + +hard_test: + if( hardfail > 1 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed (ignored)\n" ); + + goto hard_test_done; + } + + /* Get a reference ratio cycles/ms */ + millisecs = 1; + cycles = mbedtls_timing_hardclock(); + busy_msleep( millisecs ); + cycles = mbedtls_timing_hardclock() - cycles; + ratio = cycles / millisecs; + + /* Check that the ratio is mostly constant */ + for( millisecs = 2; millisecs <= 4; millisecs++ ) + { + cycles = mbedtls_timing_hardclock(); + busy_msleep( millisecs ); + cycles = mbedtls_timing_hardclock() - cycles; + + /* Allow variation up to 20% */ + if( cycles / millisecs < ratio - ratio / 5 || + cycles / millisecs > ratio + ratio / 5 ) + { + hardfail++; + goto hard_test; + } + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + +hard_test_done: + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( 0 ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_TIMING_C */ diff --git a/mbedtls/version.c b/mbedtls/version.c new file mode 100644 index 0000000..6ca80d4 --- /dev/null +++ b/mbedtls/version.c @@ -0,0 +1,50 @@ +/* + * Version information + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_VERSION_C) + +#include "mbedtls/version.h" +#include + +unsigned int mbedtls_version_get_number() +{ + return( MBEDTLS_VERSION_NUMBER ); +} + +void mbedtls_version_get_string( char *string ) +{ + memcpy( string, MBEDTLS_VERSION_STRING, + sizeof( MBEDTLS_VERSION_STRING ) ); +} + +void mbedtls_version_get_string_full( char *string ) +{ + memcpy( string, MBEDTLS_VERSION_STRING_FULL, + sizeof( MBEDTLS_VERSION_STRING_FULL ) ); +} + +#endif /* MBEDTLS_VERSION_C */ diff --git a/mbedtls/version_features.c b/mbedtls/version_features.c new file mode 100644 index 0000000..e866e67 --- /dev/null +++ b/mbedtls/version_features.c @@ -0,0 +1,647 @@ +/* + * Version feature information + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_VERSION_C) + +#include "mbedtls/version.h" + +#include + +static const char *features[] = { +#if defined(MBEDTLS_VERSION_FEATURES) +#if defined(MBEDTLS_HAVE_ASM) + "MBEDTLS_HAVE_ASM", +#endif /* MBEDTLS_HAVE_ASM */ +#if defined(MBEDTLS_HAVE_SSE2) + "MBEDTLS_HAVE_SSE2", +#endif /* MBEDTLS_HAVE_SSE2 */ +#if defined(MBEDTLS_HAVE_TIME) + "MBEDTLS_HAVE_TIME", +#endif /* MBEDTLS_HAVE_TIME */ +#if defined(MBEDTLS_HAVE_TIME_DATE) + "MBEDTLS_HAVE_TIME_DATE", +#endif /* MBEDTLS_HAVE_TIME_DATE */ +#if defined(MBEDTLS_PLATFORM_MEMORY) + "MBEDTLS_PLATFORM_MEMORY", +#endif /* MBEDTLS_PLATFORM_MEMORY */ +#if defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) + "MBEDTLS_PLATFORM_NO_STD_FUNCTIONS", +#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */ +#if defined(MBEDTLS_PLATFORM_EXIT_ALT) + "MBEDTLS_PLATFORM_EXIT_ALT", +#endif /* MBEDTLS_PLATFORM_EXIT_ALT */ +#if defined(MBEDTLS_PLATFORM_TIME_ALT) + "MBEDTLS_PLATFORM_TIME_ALT", +#endif /* MBEDTLS_PLATFORM_TIME_ALT */ +#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) + "MBEDTLS_PLATFORM_FPRINTF_ALT", +#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */ +#if defined(MBEDTLS_PLATFORM_PRINTF_ALT) + "MBEDTLS_PLATFORM_PRINTF_ALT", +#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */ +#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) + "MBEDTLS_PLATFORM_SNPRINTF_ALT", +#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */ +#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) + "MBEDTLS_PLATFORM_NV_SEED_ALT", +#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */ +#if defined(MBEDTLS_DEPRECATED_WARNING) + "MBEDTLS_DEPRECATED_WARNING", +#endif /* MBEDTLS_DEPRECATED_WARNING */ +#if defined(MBEDTLS_DEPRECATED_REMOVED) + "MBEDTLS_DEPRECATED_REMOVED", +#endif /* MBEDTLS_DEPRECATED_REMOVED */ +#if defined(MBEDTLS_TIMING_ALT) + "MBEDTLS_TIMING_ALT", +#endif /* MBEDTLS_TIMING_ALT */ +#if defined(MBEDTLS_AES_ALT) + "MBEDTLS_AES_ALT", +#endif /* MBEDTLS_AES_ALT */ +#if defined(MBEDTLS_ARC4_ALT) + "MBEDTLS_ARC4_ALT", +#endif /* MBEDTLS_ARC4_ALT */ +#if defined(MBEDTLS_BLOWFISH_ALT) + "MBEDTLS_BLOWFISH_ALT", +#endif /* MBEDTLS_BLOWFISH_ALT */ +#if defined(MBEDTLS_CAMELLIA_ALT) + "MBEDTLS_CAMELLIA_ALT", +#endif /* MBEDTLS_CAMELLIA_ALT */ +#if defined(MBEDTLS_DES_ALT) + "MBEDTLS_DES_ALT", +#endif /* MBEDTLS_DES_ALT */ +#if defined(MBEDTLS_XTEA_ALT) + "MBEDTLS_XTEA_ALT", +#endif /* MBEDTLS_XTEA_ALT */ +#if defined(MBEDTLS_MD2_ALT) + "MBEDTLS_MD2_ALT", +#endif /* MBEDTLS_MD2_ALT */ +#if defined(MBEDTLS_MD4_ALT) + "MBEDTLS_MD4_ALT", +#endif /* MBEDTLS_MD4_ALT */ +#if defined(MBEDTLS_MD5_ALT) + "MBEDTLS_MD5_ALT", +#endif /* MBEDTLS_MD5_ALT */ +#if defined(MBEDTLS_RIPEMD160_ALT) + "MBEDTLS_RIPEMD160_ALT", +#endif /* MBEDTLS_RIPEMD160_ALT */ +#if defined(MBEDTLS_SHA1_ALT) + "MBEDTLS_SHA1_ALT", +#endif /* MBEDTLS_SHA1_ALT */ +#if defined(MBEDTLS_SHA256_ALT) + "MBEDTLS_SHA256_ALT", +#endif /* MBEDTLS_SHA256_ALT */ +#if defined(MBEDTLS_SHA512_ALT) + "MBEDTLS_SHA512_ALT", +#endif /* MBEDTLS_SHA512_ALT */ +#if defined(MBEDTLS_MD2_PROCESS_ALT) + "MBEDTLS_MD2_PROCESS_ALT", +#endif /* MBEDTLS_MD2_PROCESS_ALT */ +#if defined(MBEDTLS_MD4_PROCESS_ALT) + "MBEDTLS_MD4_PROCESS_ALT", +#endif /* MBEDTLS_MD4_PROCESS_ALT */ +#if defined(MBEDTLS_MD5_PROCESS_ALT) + "MBEDTLS_MD5_PROCESS_ALT", +#endif /* MBEDTLS_MD5_PROCESS_ALT */ +#if defined(MBEDTLS_RIPEMD160_PROCESS_ALT) + "MBEDTLS_RIPEMD160_PROCESS_ALT", +#endif /* MBEDTLS_RIPEMD160_PROCESS_ALT */ +#if defined(MBEDTLS_SHA1_PROCESS_ALT) + "MBEDTLS_SHA1_PROCESS_ALT", +#endif /* MBEDTLS_SHA1_PROCESS_ALT */ +#if defined(MBEDTLS_SHA256_PROCESS_ALT) + "MBEDTLS_SHA256_PROCESS_ALT", +#endif /* MBEDTLS_SHA256_PROCESS_ALT */ +#if defined(MBEDTLS_SHA512_PROCESS_ALT) + "MBEDTLS_SHA512_PROCESS_ALT", +#endif /* MBEDTLS_SHA512_PROCESS_ALT */ +#if defined(MBEDTLS_DES_SETKEY_ALT) + "MBEDTLS_DES_SETKEY_ALT", +#endif /* MBEDTLS_DES_SETKEY_ALT */ +#if defined(MBEDTLS_DES_CRYPT_ECB_ALT) + "MBEDTLS_DES_CRYPT_ECB_ALT", +#endif /* MBEDTLS_DES_CRYPT_ECB_ALT */ +#if defined(MBEDTLS_DES3_CRYPT_ECB_ALT) + "MBEDTLS_DES3_CRYPT_ECB_ALT", +#endif /* MBEDTLS_DES3_CRYPT_ECB_ALT */ +#if defined(MBEDTLS_AES_SETKEY_ENC_ALT) + "MBEDTLS_AES_SETKEY_ENC_ALT", +#endif /* MBEDTLS_AES_SETKEY_ENC_ALT */ +#if defined(MBEDTLS_AES_SETKEY_DEC_ALT) + "MBEDTLS_AES_SETKEY_DEC_ALT", +#endif /* MBEDTLS_AES_SETKEY_DEC_ALT */ +#if defined(MBEDTLS_AES_ENCRYPT_ALT) + "MBEDTLS_AES_ENCRYPT_ALT", +#endif /* MBEDTLS_AES_ENCRYPT_ALT */ +#if defined(MBEDTLS_AES_DECRYPT_ALT) + "MBEDTLS_AES_DECRYPT_ALT", +#endif /* MBEDTLS_AES_DECRYPT_ALT */ +#if defined(MBEDTLS_TEST_NULL_ENTROPY) + "MBEDTLS_TEST_NULL_ENTROPY", +#endif /* MBEDTLS_TEST_NULL_ENTROPY */ +#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) + "MBEDTLS_ENTROPY_HARDWARE_ALT", +#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */ +#if defined(MBEDTLS_AES_ROM_TABLES) + "MBEDTLS_AES_ROM_TABLES", +#endif /* MBEDTLS_AES_ROM_TABLES */ +#if defined(MBEDTLS_CAMELLIA_SMALL_MEMORY) + "MBEDTLS_CAMELLIA_SMALL_MEMORY", +#endif /* MBEDTLS_CAMELLIA_SMALL_MEMORY */ +#if defined(MBEDTLS_CIPHER_MODE_CBC) + "MBEDTLS_CIPHER_MODE_CBC", +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#if defined(MBEDTLS_CIPHER_MODE_CFB) + "MBEDTLS_CIPHER_MODE_CFB", +#endif /* MBEDTLS_CIPHER_MODE_CFB */ +#if defined(MBEDTLS_CIPHER_MODE_CTR) + "MBEDTLS_CIPHER_MODE_CTR", +#endif /* MBEDTLS_CIPHER_MODE_CTR */ +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) + "MBEDTLS_CIPHER_NULL_CIPHER", +#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ +#if defined(MBEDTLS_CIPHER_PADDING_PKCS7) + "MBEDTLS_CIPHER_PADDING_PKCS7", +#endif /* MBEDTLS_CIPHER_PADDING_PKCS7 */ +#if defined(MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS) + "MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS", +#endif /* MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS */ +#if defined(MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN) + "MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN", +#endif /* MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN */ +#if defined(MBEDTLS_CIPHER_PADDING_ZEROS) + "MBEDTLS_CIPHER_PADDING_ZEROS", +#endif /* MBEDTLS_CIPHER_PADDING_ZEROS */ +#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES) + "MBEDTLS_ENABLE_WEAK_CIPHERSUITES", +#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */ +#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES) + "MBEDTLS_REMOVE_ARC4_CIPHERSUITES", +#endif /* MBEDTLS_REMOVE_ARC4_CIPHERSUITES */ +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) + "MBEDTLS_ECP_DP_SECP192R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) + "MBEDTLS_ECP_DP_SECP224R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) + "MBEDTLS_ECP_DP_SECP256R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) + "MBEDTLS_ECP_DP_SECP384R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) + "MBEDTLS_ECP_DP_SECP521R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) + "MBEDTLS_ECP_DP_SECP192K1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) + "MBEDTLS_ECP_DP_SECP224K1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) + "MBEDTLS_ECP_DP_SECP256K1_ENABLED", +#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) + "MBEDTLS_ECP_DP_BP256R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) + "MBEDTLS_ECP_DP_BP384R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) + "MBEDTLS_ECP_DP_BP512R1_ENABLED", +#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */ +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) + "MBEDTLS_ECP_DP_CURVE25519_ENABLED", +#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */ +#if defined(MBEDTLS_ECP_NIST_OPTIM) + "MBEDTLS_ECP_NIST_OPTIM", +#endif /* MBEDTLS_ECP_NIST_OPTIM */ +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) + "MBEDTLS_ECDSA_DETERMINISTIC", +#endif /* MBEDTLS_ECDSA_DETERMINISTIC */ +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) + "MBEDTLS_KEY_EXCHANGE_PSK_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) + "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) + "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) + "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) + "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) + "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) + "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) + "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED", +#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ +#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED) + "MBEDTLS_PK_PARSE_EC_EXTENDED", +#endif /* MBEDTLS_PK_PARSE_EC_EXTENDED */ +#if defined(MBEDTLS_ERROR_STRERROR_DUMMY) + "MBEDTLS_ERROR_STRERROR_DUMMY", +#endif /* MBEDTLS_ERROR_STRERROR_DUMMY */ +#if defined(MBEDTLS_GENPRIME) + "MBEDTLS_GENPRIME", +#endif /* MBEDTLS_GENPRIME */ +#if defined(MBEDTLS_FS_IO) + "MBEDTLS_FS_IO", +#endif /* MBEDTLS_FS_IO */ +#if defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) + "MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES", +#endif /* MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES */ +#if defined(MBEDTLS_NO_PLATFORM_ENTROPY) + "MBEDTLS_NO_PLATFORM_ENTROPY", +#endif /* MBEDTLS_NO_PLATFORM_ENTROPY */ +#if defined(MBEDTLS_ENTROPY_FORCE_SHA256) + "MBEDTLS_ENTROPY_FORCE_SHA256", +#endif /* MBEDTLS_ENTROPY_FORCE_SHA256 */ +#if defined(MBEDTLS_ENTROPY_NV_SEED) + "MBEDTLS_ENTROPY_NV_SEED", +#endif /* MBEDTLS_ENTROPY_NV_SEED */ +#if defined(MBEDTLS_MEMORY_DEBUG) + "MBEDTLS_MEMORY_DEBUG", +#endif /* MBEDTLS_MEMORY_DEBUG */ +#if defined(MBEDTLS_MEMORY_BACKTRACE) + "MBEDTLS_MEMORY_BACKTRACE", +#endif /* MBEDTLS_MEMORY_BACKTRACE */ +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) + "MBEDTLS_PK_RSA_ALT_SUPPORT", +#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ +#if defined(MBEDTLS_PKCS1_V15) + "MBEDTLS_PKCS1_V15", +#endif /* MBEDTLS_PKCS1_V15 */ +#if defined(MBEDTLS_PKCS1_V21) + "MBEDTLS_PKCS1_V21", +#endif /* MBEDTLS_PKCS1_V21 */ +#if defined(MBEDTLS_RSA_NO_CRT) + "MBEDTLS_RSA_NO_CRT", +#endif /* MBEDTLS_RSA_NO_CRT */ +#if defined(MBEDTLS_SELF_TEST) + "MBEDTLS_SELF_TEST", +#endif /* MBEDTLS_SELF_TEST */ +#if defined(MBEDTLS_SHA256_SMALLER) + "MBEDTLS_SHA256_SMALLER", +#endif /* MBEDTLS_SHA256_SMALLER */ +#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES) + "MBEDTLS_SSL_ALL_ALERT_MESSAGES", +#endif /* MBEDTLS_SSL_ALL_ALERT_MESSAGES */ +#if defined(MBEDTLS_SSL_DEBUG_ALL) + "MBEDTLS_SSL_DEBUG_ALL", +#endif /* MBEDTLS_SSL_DEBUG_ALL */ +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + "MBEDTLS_SSL_ENCRYPT_THEN_MAC", +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + "MBEDTLS_SSL_EXTENDED_MASTER_SECRET", +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ +#if defined(MBEDTLS_SSL_FALLBACK_SCSV) + "MBEDTLS_SSL_FALLBACK_SCSV", +#endif /* MBEDTLS_SSL_FALLBACK_SCSV */ +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) + "MBEDTLS_SSL_HW_RECORD_ACCEL", +#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ +#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) + "MBEDTLS_SSL_CBC_RECORD_SPLITTING", +#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + "MBEDTLS_SSL_RENEGOTIATION", +#endif /* MBEDTLS_SSL_RENEGOTIATION */ +#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO) + "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO", +#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */ +#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE) + "MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE", +#endif /* MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE */ +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + "MBEDTLS_SSL_MAX_FRAGMENT_LENGTH", +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ +#if defined(MBEDTLS_SSL_PROTO_SSL3) + "MBEDTLS_SSL_PROTO_SSL3", +#endif /* MBEDTLS_SSL_PROTO_SSL3 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1) + "MBEDTLS_SSL_PROTO_TLS1", +#endif /* MBEDTLS_SSL_PROTO_TLS1 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_1) + "MBEDTLS_SSL_PROTO_TLS1_1", +#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + "MBEDTLS_SSL_PROTO_TLS1_2", +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + "MBEDTLS_SSL_PROTO_DTLS", +#endif /* MBEDTLS_SSL_PROTO_DTLS */ +#if defined(MBEDTLS_SSL_ALPN) + "MBEDTLS_SSL_ALPN", +#endif /* MBEDTLS_SSL_ALPN */ +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + "MBEDTLS_SSL_DTLS_ANTI_REPLAY", +#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) + "MBEDTLS_SSL_DTLS_HELLO_VERIFY", +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ +#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) + "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE", +#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE */ +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) + "MBEDTLS_SSL_DTLS_BADMAC_LIMIT", +#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */ +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + "MBEDTLS_SSL_SESSION_TICKETS", +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ +#if defined(MBEDTLS_SSL_EXPORT_KEYS) + "MBEDTLS_SSL_EXPORT_KEYS", +#endif /* MBEDTLS_SSL_EXPORT_KEYS */ +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + "MBEDTLS_SSL_SERVER_NAME_INDICATION", +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + "MBEDTLS_SSL_TRUNCATED_HMAC", +#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ +#if defined(MBEDTLS_THREADING_ALT) + "MBEDTLS_THREADING_ALT", +#endif /* MBEDTLS_THREADING_ALT */ +#if defined(MBEDTLS_THREADING_PTHREAD) + "MBEDTLS_THREADING_PTHREAD", +#endif /* MBEDTLS_THREADING_PTHREAD */ +#if defined(MBEDTLS_VERSION_FEATURES) + "MBEDTLS_VERSION_FEATURES", +#endif /* MBEDTLS_VERSION_FEATURES */ +#if defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3) + "MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3", +#endif /* MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 */ +#if defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION) + "MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION", +#endif /* MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION */ +#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) + "MBEDTLS_X509_CHECK_KEY_USAGE", +#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */ +#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) + "MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE", +#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */ +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) + "MBEDTLS_X509_RSASSA_PSS_SUPPORT", +#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */ +#if defined(MBEDTLS_ZLIB_SUPPORT) + "MBEDTLS_ZLIB_SUPPORT", +#endif /* MBEDTLS_ZLIB_SUPPORT */ +#if defined(MBEDTLS_AESNI_C) + "MBEDTLS_AESNI_C", +#endif /* MBEDTLS_AESNI_C */ +#if defined(MBEDTLS_AES_C) + "MBEDTLS_AES_C", +#endif /* MBEDTLS_AES_C */ +#if defined(MBEDTLS_ARC4_C) + "MBEDTLS_ARC4_C", +#endif /* MBEDTLS_ARC4_C */ +#if defined(MBEDTLS_ASN1_PARSE_C) + "MBEDTLS_ASN1_PARSE_C", +#endif /* MBEDTLS_ASN1_PARSE_C */ +#if defined(MBEDTLS_ASN1_WRITE_C) + "MBEDTLS_ASN1_WRITE_C", +#endif /* MBEDTLS_ASN1_WRITE_C */ +#if defined(MBEDTLS_BASE64_C) + "MBEDTLS_BASE64_C", +#endif /* MBEDTLS_BASE64_C */ +#if defined(MBEDTLS_BIGNUM_C) + "MBEDTLS_BIGNUM_C", +#endif /* MBEDTLS_BIGNUM_C */ +#if defined(MBEDTLS_BLOWFISH_C) + "MBEDTLS_BLOWFISH_C", +#endif /* MBEDTLS_BLOWFISH_C */ +#if defined(MBEDTLS_CAMELLIA_C) + "MBEDTLS_CAMELLIA_C", +#endif /* MBEDTLS_CAMELLIA_C */ +#if defined(MBEDTLS_CCM_C) + "MBEDTLS_CCM_C", +#endif /* MBEDTLS_CCM_C */ +#if defined(MBEDTLS_CERTS_C) + "MBEDTLS_CERTS_C", +#endif /* MBEDTLS_CERTS_C */ +#if defined(MBEDTLS_CIPHER_C) + "MBEDTLS_CIPHER_C", +#endif /* MBEDTLS_CIPHER_C */ +#if defined(MBEDTLS_CMAC_C) + "MBEDTLS_CMAC_C", +#endif /* MBEDTLS_CMAC_C */ +#if defined(MBEDTLS_CTR_DRBG_C) + "MBEDTLS_CTR_DRBG_C", +#endif /* MBEDTLS_CTR_DRBG_C */ +#if defined(MBEDTLS_DEBUG_C) + "MBEDTLS_DEBUG_C", +#endif /* MBEDTLS_DEBUG_C */ +#if defined(MBEDTLS_DES_C) + "MBEDTLS_DES_C", +#endif /* MBEDTLS_DES_C */ +#if defined(MBEDTLS_DHM_C) + "MBEDTLS_DHM_C", +#endif /* MBEDTLS_DHM_C */ +#if defined(MBEDTLS_ECDH_C) + "MBEDTLS_ECDH_C", +#endif /* MBEDTLS_ECDH_C */ +#if defined(MBEDTLS_ECDSA_C) + "MBEDTLS_ECDSA_C", +#endif /* MBEDTLS_ECDSA_C */ +#if defined(MBEDTLS_ECJPAKE_C) + "MBEDTLS_ECJPAKE_C", +#endif /* MBEDTLS_ECJPAKE_C */ +#if defined(MBEDTLS_ECP_C) + "MBEDTLS_ECP_C", +#endif /* MBEDTLS_ECP_C */ +#if defined(MBEDTLS_ENTROPY_C) + "MBEDTLS_ENTROPY_C", +#endif /* MBEDTLS_ENTROPY_C */ +#if defined(MBEDTLS_ERROR_C) + "MBEDTLS_ERROR_C", +#endif /* MBEDTLS_ERROR_C */ +#if defined(MBEDTLS_GCM_C) + "MBEDTLS_GCM_C", +#endif /* MBEDTLS_GCM_C */ +#if defined(MBEDTLS_HAVEGE_C) + "MBEDTLS_HAVEGE_C", +#endif /* MBEDTLS_HAVEGE_C */ +#if defined(MBEDTLS_HMAC_DRBG_C) + "MBEDTLS_HMAC_DRBG_C", +#endif /* MBEDTLS_HMAC_DRBG_C */ +#if defined(MBEDTLS_MD_C) + "MBEDTLS_MD_C", +#endif /* MBEDTLS_MD_C */ +#if defined(MBEDTLS_MD2_C) + "MBEDTLS_MD2_C", +#endif /* MBEDTLS_MD2_C */ +#if defined(MBEDTLS_MD4_C) + "MBEDTLS_MD4_C", +#endif /* MBEDTLS_MD4_C */ +#if defined(MBEDTLS_MD5_C) + "MBEDTLS_MD5_C", +#endif /* MBEDTLS_MD5_C */ +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) + "MBEDTLS_MEMORY_BUFFER_ALLOC_C", +#endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */ +#if defined(MBEDTLS_NET_C) + "MBEDTLS_NET_C", +#endif /* MBEDTLS_NET_C */ +#if defined(MBEDTLS_OID_C) + "MBEDTLS_OID_C", +#endif /* MBEDTLS_OID_C */ +#if defined(MBEDTLS_PADLOCK_C) + "MBEDTLS_PADLOCK_C", +#endif /* MBEDTLS_PADLOCK_C */ +#if defined(MBEDTLS_PEM_PARSE_C) + "MBEDTLS_PEM_PARSE_C", +#endif /* MBEDTLS_PEM_PARSE_C */ +#if defined(MBEDTLS_PEM_WRITE_C) + "MBEDTLS_PEM_WRITE_C", +#endif /* MBEDTLS_PEM_WRITE_C */ +#if defined(MBEDTLS_PK_C) + "MBEDTLS_PK_C", +#endif /* MBEDTLS_PK_C */ +#if defined(MBEDTLS_PK_PARSE_C) + "MBEDTLS_PK_PARSE_C", +#endif /* MBEDTLS_PK_PARSE_C */ +#if defined(MBEDTLS_PK_WRITE_C) + "MBEDTLS_PK_WRITE_C", +#endif /* MBEDTLS_PK_WRITE_C */ +#if defined(MBEDTLS_PKCS5_C) + "MBEDTLS_PKCS5_C", +#endif /* MBEDTLS_PKCS5_C */ +#if defined(MBEDTLS_PKCS11_C) + "MBEDTLS_PKCS11_C", +#endif /* MBEDTLS_PKCS11_C */ +#if defined(MBEDTLS_PKCS12_C) + "MBEDTLS_PKCS12_C", +#endif /* MBEDTLS_PKCS12_C */ +#if defined(MBEDTLS_PLATFORM_C) + "MBEDTLS_PLATFORM_C", +#endif /* MBEDTLS_PLATFORM_C */ +#if defined(MBEDTLS_RIPEMD160_C) + "MBEDTLS_RIPEMD160_C", +#endif /* MBEDTLS_RIPEMD160_C */ +#if defined(MBEDTLS_RSA_C) + "MBEDTLS_RSA_C", +#endif /* MBEDTLS_RSA_C */ +#if defined(MBEDTLS_SHA1_C) + "MBEDTLS_SHA1_C", +#endif /* MBEDTLS_SHA1_C */ +#if defined(MBEDTLS_SHA256_C) + "MBEDTLS_SHA256_C", +#endif /* MBEDTLS_SHA256_C */ +#if defined(MBEDTLS_SHA512_C) + "MBEDTLS_SHA512_C", +#endif /* MBEDTLS_SHA512_C */ +#if defined(MBEDTLS_SSL_CACHE_C) + "MBEDTLS_SSL_CACHE_C", +#endif /* MBEDTLS_SSL_CACHE_C */ +#if defined(MBEDTLS_SSL_COOKIE_C) + "MBEDTLS_SSL_COOKIE_C", +#endif /* MBEDTLS_SSL_COOKIE_C */ +#if defined(MBEDTLS_SSL_TICKET_C) + "MBEDTLS_SSL_TICKET_C", +#endif /* MBEDTLS_SSL_TICKET_C */ +#if defined(MBEDTLS_SSL_CLI_C) + "MBEDTLS_SSL_CLI_C", +#endif /* MBEDTLS_SSL_CLI_C */ +#if defined(MBEDTLS_SSL_SRV_C) + "MBEDTLS_SSL_SRV_C", +#endif /* MBEDTLS_SSL_SRV_C */ +#if defined(MBEDTLS_SSL_TLS_C) + "MBEDTLS_SSL_TLS_C", +#endif /* MBEDTLS_SSL_TLS_C */ +#if defined(MBEDTLS_THREADING_C) + "MBEDTLS_THREADING_C", +#endif /* MBEDTLS_THREADING_C */ +#if defined(MBEDTLS_TIMING_C) + "MBEDTLS_TIMING_C", +#endif /* MBEDTLS_TIMING_C */ +#if defined(MBEDTLS_VERSION_C) + "MBEDTLS_VERSION_C", +#endif /* MBEDTLS_VERSION_C */ +#if defined(MBEDTLS_X509_USE_C) + "MBEDTLS_X509_USE_C", +#endif /* MBEDTLS_X509_USE_C */ +#if defined(MBEDTLS_X509_CRT_PARSE_C) + "MBEDTLS_X509_CRT_PARSE_C", +#endif /* MBEDTLS_X509_CRT_PARSE_C */ +#if defined(MBEDTLS_X509_CRL_PARSE_C) + "MBEDTLS_X509_CRL_PARSE_C", +#endif /* MBEDTLS_X509_CRL_PARSE_C */ +#if defined(MBEDTLS_X509_CSR_PARSE_C) + "MBEDTLS_X509_CSR_PARSE_C", +#endif /* MBEDTLS_X509_CSR_PARSE_C */ +#if defined(MBEDTLS_X509_CREATE_C) + "MBEDTLS_X509_CREATE_C", +#endif /* MBEDTLS_X509_CREATE_C */ +#if defined(MBEDTLS_X509_CRT_WRITE_C) + "MBEDTLS_X509_CRT_WRITE_C", +#endif /* MBEDTLS_X509_CRT_WRITE_C */ +#if defined(MBEDTLS_X509_CSR_WRITE_C) + "MBEDTLS_X509_CSR_WRITE_C", +#endif /* MBEDTLS_X509_CSR_WRITE_C */ +#if defined(MBEDTLS_XTEA_C) + "MBEDTLS_XTEA_C", +#endif /* MBEDTLS_XTEA_C */ +#endif /* MBEDTLS_VERSION_FEATURES */ + NULL +}; + +int mbedtls_version_check_feature( const char *feature ) +{ + const char **idx = features; + + if( *idx == NULL ) + return( -2 ); + + if( feature == NULL ) + return( -1 ); + + while( *idx != NULL ) + { + if( !strcmp( *idx, feature ) ) + return( 0 ); + idx++; + } + return( -1 ); +} + +#endif /* MBEDTLS_VERSION_C */ diff --git a/mbedtls/x509.c b/mbedtls/x509.c new file mode 100644 index 0000000..fad390d --- /dev/null +++ b/mbedtls/x509.c @@ -0,0 +1,1063 @@ +/* + * X.509 common functions for parsing and verification + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The ITU-T X.509 standard defines a certificate format for PKI. + * + * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) + * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) + * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) + * + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_X509_USE_C) + +#include "mbedtls/x509.h" +#include "mbedtls/asn1.h" +#include "mbedtls/oid.h" + +#include +#include + +#if defined(MBEDTLS_PEM_PARSE_C) +#include "mbedtls/pem.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_free free +#define mbedtls_calloc calloc +#define mbedtls_printf printf +#define mbedtls_snprintf snprintf +#endif + + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) +#include +#else +#include +#endif + +#if defined(MBEDTLS_FS_IO) +#include +#if !defined(_WIN32) +#include +#include +#include +#endif +#endif + +#define CHECK(code) if( ( ret = code ) != 0 ){ return( ret ); } +#define CHECK_RANGE(min, max, val) if( val < min || val > max ){ return( ret ); } + +/* + * CertificateSerialNumber ::= INTEGER + */ +int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *serial ) +{ + int ret; + + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_X509_INVALID_SERIAL + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + if( **p != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_PRIMITIVE | 2 ) && + **p != MBEDTLS_ASN1_INTEGER ) + return( MBEDTLS_ERR_X509_INVALID_SERIAL + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + serial->tag = *(*p)++; + + if( ( ret = mbedtls_asn1_get_len( p, end, &serial->len ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_SERIAL + ret ); + + serial->p = *p; + *p += serial->len; + + return( 0 ); +} + +/* Get an algorithm identifier without parameters (eg for signatures) + * + * AlgorithmIdentifier ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL } + */ +int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *alg ) +{ + int ret; + + if( ( ret = mbedtls_asn1_get_alg_null( p, end, alg ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + return( 0 ); +} + +/* + * Parse an algorithm identifier with (optional) paramaters + */ +int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *alg, mbedtls_x509_buf *params ) +{ + int ret; + + if( ( ret = mbedtls_asn1_get_alg( p, end, alg, params ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + return( 0 ); +} + +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) +/* + * HashAlgorithm ::= AlgorithmIdentifier + * + * AlgorithmIdentifier ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL } + * + * For HashAlgorithm, parameters MUST be NULL or absent. + */ +static int x509_get_hash_alg( const mbedtls_x509_buf *alg, mbedtls_md_type_t *md_alg ) +{ + int ret; + unsigned char *p; + const unsigned char *end; + mbedtls_x509_buf md_oid; + size_t len; + + /* Make sure we got a SEQUENCE and setup bounds */ + if( alg->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + p = (unsigned char *) alg->p; + end = p + alg->len; + + if( p >= end ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + /* Parse md_oid */ + md_oid.tag = *p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &md_oid.len, MBEDTLS_ASN1_OID ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + md_oid.p = p; + p += md_oid.len; + + /* Get md_alg from md_oid */ + if( ( ret = mbedtls_oid_get_md_alg( &md_oid, md_alg ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + /* Make sure params is absent of NULL */ + if( p == end ) + return( 0 ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_NULL ) ) != 0 || len != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p != end ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * RSASSA-PSS-params ::= SEQUENCE { + * hashAlgorithm [0] HashAlgorithm DEFAULT sha1Identifier, + * maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT mgf1SHA1Identifier, + * saltLength [2] INTEGER DEFAULT 20, + * trailerField [3] INTEGER DEFAULT 1 } + * -- Note that the tags in this Sequence are explicit. + * + * RFC 4055 (which defines use of RSASSA-PSS in PKIX) states that the value + * of trailerField MUST be 1, and PKCS#1 v2.2 doesn't even define any other + * option. Enfore this at parsing time. + */ +int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params, + mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md, + int *salt_len ) +{ + int ret; + unsigned char *p; + const unsigned char *end, *end2; + size_t len; + mbedtls_x509_buf alg_id, alg_params; + + /* First set everything to defaults */ + *md_alg = MBEDTLS_MD_SHA1; + *mgf_md = MBEDTLS_MD_SHA1; + *salt_len = 20; + + /* Make sure params is a SEQUENCE and setup bounds */ + if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + p = (unsigned char *) params->p; + end = p + params->len; + + if( p == end ) + return( 0 ); + + /* + * HashAlgorithm + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) == 0 ) + { + end2 = p + len; + + /* HashAlgorithm ::= AlgorithmIdentifier (without parameters) */ + if( ( ret = mbedtls_x509_get_alg_null( &p, end2, &alg_id ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_oid_get_md_alg( &alg_id, md_alg ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p != end2 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p == end ) + return( 0 ); + + /* + * MaskGenAlgorithm + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ) == 0 ) + { + end2 = p + len; + + /* MaskGenAlgorithm ::= AlgorithmIdentifier (params = HashAlgorithm) */ + if( ( ret = mbedtls_x509_get_alg( &p, end2, &alg_id, &alg_params ) ) != 0 ) + return( ret ); + + /* Only MFG1 is recognised for now */ + if( MBEDTLS_OID_CMP( MBEDTLS_OID_MGF1, &alg_id ) != 0 ) + return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE + + MBEDTLS_ERR_OID_NOT_FOUND ); + + /* Parse HashAlgorithm */ + if( ( ret = x509_get_hash_alg( &alg_params, mgf_md ) ) != 0 ) + return( ret ); + + if( p != end2 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p == end ) + return( 0 ); + + /* + * salt_len + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 2 ) ) == 0 ) + { + end2 = p + len; + + if( ( ret = mbedtls_asn1_get_int( &p, end2, salt_len ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p != end2 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p == end ) + return( 0 ); + + /* + * trailer_field (if present, must be 1) + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 3 ) ) == 0 ) + { + int trailer_field; + + end2 = p + len; + + if( ( ret = mbedtls_asn1_get_int( &p, end2, &trailer_field ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p != end2 ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + if( trailer_field != 1 ) + return( MBEDTLS_ERR_X509_INVALID_ALG ); + } + else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); + + if( p != end ) + return( MBEDTLS_ERR_X509_INVALID_ALG + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} +#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */ + +/* + * AttributeTypeAndValue ::= SEQUENCE { + * type AttributeType, + * value AttributeValue } + * + * AttributeType ::= OBJECT IDENTIFIER + * + * AttributeValue ::= ANY DEFINED BY AttributeType + */ +static int x509_get_attr_type_value( unsigned char **p, + const unsigned char *end, + mbedtls_x509_name *cur ) +{ + int ret; + size_t len; + mbedtls_x509_buf *oid; + mbedtls_x509_buf *val; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); + + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_X509_INVALID_NAME + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + oid = &cur->oid; + oid->tag = **p; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &oid->len, MBEDTLS_ASN1_OID ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); + + oid->p = *p; + *p += oid->len; + + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_X509_INVALID_NAME + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + if( **p != MBEDTLS_ASN1_BMP_STRING && **p != MBEDTLS_ASN1_UTF8_STRING && + **p != MBEDTLS_ASN1_T61_STRING && **p != MBEDTLS_ASN1_PRINTABLE_STRING && + **p != MBEDTLS_ASN1_IA5_STRING && **p != MBEDTLS_ASN1_UNIVERSAL_STRING && + **p != MBEDTLS_ASN1_BIT_STRING ) + return( MBEDTLS_ERR_X509_INVALID_NAME + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + val = &cur->val; + val->tag = *(*p)++; + + if( ( ret = mbedtls_asn1_get_len( p, end, &val->len ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); + + val->p = *p; + *p += val->len; + + cur->next = NULL; + + return( 0 ); +} + +/* + * Name ::= CHOICE { -- only one possibility for now -- + * rdnSequence RDNSequence } + * + * RDNSequence ::= SEQUENCE OF RelativeDistinguishedName + * + * RelativeDistinguishedName ::= + * SET OF AttributeTypeAndValue + * + * AttributeTypeAndValue ::= SEQUENCE { + * type AttributeType, + * value AttributeValue } + * + * AttributeType ::= OBJECT IDENTIFIER + * + * AttributeValue ::= ANY DEFINED BY AttributeType + * + * The data structure is optimized for the common case where each RDN has only + * one element, which is represented as a list of AttributeTypeAndValue. + * For the general case we still use a flat list, but we mark elements of the + * same set so that they are "merged" together in the functions that consume + * this list, eg mbedtls_x509_dn_gets(). + */ +int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end, + mbedtls_x509_name *cur ) +{ + int ret; + size_t set_len; + const unsigned char *end_set; + + /* don't use recursion, we'd risk stack overflow if not optimized */ + while( 1 ) + { + /* + * parse SET + */ + if( ( ret = mbedtls_asn1_get_tag( p, end, &set_len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SET ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); + + end_set = *p + set_len; + + while( 1 ) + { + if( ( ret = x509_get_attr_type_value( p, end_set, cur ) ) != 0 ) + return( ret ); + + if( *p == end_set ) + break; + + /* Mark this item as being no the only one in a set */ + cur->next_merged = 1; + + cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) ); + + if( cur->next == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + cur = cur->next; + } + + /* + * continue until end of SEQUENCE is reached + */ + if( *p == end ) + return( 0 ); + + cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) ); + + if( cur->next == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + cur = cur->next; + } +} + +static int x509_parse_int(unsigned char **p, unsigned n, int *res){ + *res = 0; + for( ; n > 0; --n ){ + if( ( **p < '0') || ( **p > '9' ) ) return MBEDTLS_ERR_X509_INVALID_DATE; + *res *= 10; + *res += (*(*p)++ - '0'); + } + return 0; +} + +static int x509_date_is_valid(const mbedtls_x509_time *time) +{ + int ret = MBEDTLS_ERR_X509_INVALID_DATE; + + CHECK_RANGE( 0, 9999, time->year ); + CHECK_RANGE( 0, 23, time->hour ); + CHECK_RANGE( 0, 59, time->min ); + CHECK_RANGE( 0, 59, time->sec ); + + switch( time->mon ) + { + case 1: case 3: case 5: case 7: case 8: case 10: case 12: + CHECK_RANGE( 1, 31, time->day ); + break; + case 4: case 6: case 9: case 11: + CHECK_RANGE( 1, 30, time->day ); + break; + case 2: + CHECK_RANGE( 1, 28 + (time->year % 4 == 0), time->day ); + break; + default: + return( ret ); + } + + return( 0 ); +} + +/* + * Time ::= CHOICE { + * utcTime UTCTime, + * generalTime GeneralizedTime } + */ +int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end, + mbedtls_x509_time *time ) +{ + int ret; + size_t len; + unsigned char tag; + + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_X509_INVALID_DATE + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + tag = **p; + + if( tag == MBEDTLS_ASN1_UTC_TIME ) + { + (*p)++; + ret = mbedtls_asn1_get_len( p, end, &len ); + + if( ret != 0 ) + return( MBEDTLS_ERR_X509_INVALID_DATE + ret ); + + CHECK( x509_parse_int( p, 2, &time->year ) ); + CHECK( x509_parse_int( p, 2, &time->mon ) ); + CHECK( x509_parse_int( p, 2, &time->day ) ); + CHECK( x509_parse_int( p, 2, &time->hour ) ); + CHECK( x509_parse_int( p, 2, &time->min ) ); + if( len > 10 ) + CHECK( x509_parse_int( p, 2, &time->sec ) ); + if( len > 12 && *(*p)++ != 'Z' ) + return( MBEDTLS_ERR_X509_INVALID_DATE ); + + time->year += 100 * ( time->year < 50 ); + time->year += 1900; + + CHECK( x509_date_is_valid( time ) ); + + return( 0 ); + } + else if( tag == MBEDTLS_ASN1_GENERALIZED_TIME ) + { + (*p)++; + ret = mbedtls_asn1_get_len( p, end, &len ); + + if( ret != 0 ) + return( MBEDTLS_ERR_X509_INVALID_DATE + ret ); + + CHECK( x509_parse_int( p, 4, &time->year ) ); + CHECK( x509_parse_int( p, 2, &time->mon ) ); + CHECK( x509_parse_int( p, 2, &time->day ) ); + CHECK( x509_parse_int( p, 2, &time->hour ) ); + CHECK( x509_parse_int( p, 2, &time->min ) ); + if( len > 12 ) + CHECK( x509_parse_int( p, 2, &time->sec ) ); + if( len > 14 && *(*p)++ != 'Z' ) + return( MBEDTLS_ERR_X509_INVALID_DATE ); + + CHECK( x509_date_is_valid( time ) ); + + return( 0 ); + } + else + return( MBEDTLS_ERR_X509_INVALID_DATE + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); +} + +int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig ) +{ + int ret; + size_t len; + int tag_type; + + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_X509_INVALID_SIGNATURE + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + tag_type = **p; + + if( ( ret = mbedtls_asn1_get_bitstring_null( p, end, &len ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_SIGNATURE + ret ); + + sig->tag = tag_type; + sig->len = len; + sig->p = *p; + + *p += len; + + return( 0 ); +} + +/* + * Get signature algorithm from alg OID and optional parameters + */ +int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params, + mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg, + void **sig_opts ) +{ + int ret; + + if( *sig_opts != NULL ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + if( ( ret = mbedtls_oid_get_sig_alg( sig_oid, md_alg, pk_alg ) ) != 0 ) + return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + ret ); + +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) + if( *pk_alg == MBEDTLS_PK_RSASSA_PSS ) + { + mbedtls_pk_rsassa_pss_options *pss_opts; + + pss_opts = mbedtls_calloc( 1, sizeof( mbedtls_pk_rsassa_pss_options ) ); + if( pss_opts == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + ret = mbedtls_x509_get_rsassa_pss_params( sig_params, + md_alg, + &pss_opts->mgf1_hash_id, + &pss_opts->expected_salt_len ); + if( ret != 0 ) + { + mbedtls_free( pss_opts ); + return( ret ); + } + + *sig_opts = (void *) pss_opts; + } + else +#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */ + { + /* Make sure parameters are absent or NULL */ + if( ( sig_params->tag != MBEDTLS_ASN1_NULL && sig_params->tag != 0 ) || + sig_params->len != 0 ) + return( MBEDTLS_ERR_X509_INVALID_ALG ); + } + + return( 0 ); +} + +/* + * X.509 Extensions (No parsing of extensions, pointer should + * be either manually updated or extensions should be parsed! + */ +int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *ext, int tag ) +{ + int ret; + size_t len; + + if( *p == end ) + return( 0 ); + + ext->tag = **p; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | tag ) ) != 0 ) + return( ret ); + + ext->p = *p; + end = *p + ext->len; + + /* + * Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension + * + * Extension ::= SEQUENCE { + * extnID OBJECT IDENTIFIER, + * critical BOOLEAN DEFAULT FALSE, + * extnValue OCTET STRING } + */ + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( end != *p + len ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * Store the name in printable form into buf; no more + * than size characters will be written + */ +int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn ) +{ + int ret; + size_t i, n; + unsigned char c, merge = 0; + const mbedtls_x509_name *name; + const char *short_name = NULL; + char s[MBEDTLS_X509_MAX_DN_NAME_SIZE], *p; + + memset( s, 0, sizeof( s ) ); + + name = dn; + p = buf; + n = size; + + while( name != NULL ) + { + if( !name->oid.p ) + { + name = name->next; + continue; + } + + if( name != dn ) + { + ret = mbedtls_snprintf( p, n, merge ? " + " : ", " ); + MBEDTLS_X509_SAFE_SNPRINTF; + } + + ret = mbedtls_oid_get_attr_short_name( &name->oid, &short_name ); + + if( ret == 0 ) + ret = mbedtls_snprintf( p, n, "%s=", short_name ); + else + ret = mbedtls_snprintf( p, n, "\?\?=" ); + MBEDTLS_X509_SAFE_SNPRINTF; + + for( i = 0; i < name->val.len; i++ ) + { + if( i >= sizeof( s ) - 1 ) + break; + + c = name->val.p[i]; + if( c < 32 || c == 127 || ( c > 128 && c < 160 ) ) + s[i] = '?'; + else s[i] = c; + } + s[i] = '\0'; + ret = mbedtls_snprintf( p, n, "%s", s ); + MBEDTLS_X509_SAFE_SNPRINTF; + + merge = name->next_merged; + name = name->next; + } + + return( (int) ( size - n ) ); +} + +/* + * Store the serial in printable form into buf; no more + * than size characters will be written + */ +int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial ) +{ + int ret; + size_t i, n, nr; + char *p; + + p = buf; + n = size; + + nr = ( serial->len <= 32 ) + ? serial->len : 28; + + for( i = 0; i < nr; i++ ) + { + if( i == 0 && nr > 1 && serial->p[i] == 0x0 ) + continue; + + ret = mbedtls_snprintf( p, n, "%02X%s", + serial->p[i], ( i < nr - 1 ) ? ":" : "" ); + MBEDTLS_X509_SAFE_SNPRINTF; + } + + if( nr != serial->len ) + { + ret = mbedtls_snprintf( p, n, "...." ); + MBEDTLS_X509_SAFE_SNPRINTF; + } + + return( (int) ( size - n ) ); +} + +/* + * Helper for writing signature algorithms + */ +int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid, + mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, + const void *sig_opts ) +{ + int ret; + char *p = buf; + size_t n = size; + const char *desc = NULL; + + ret = mbedtls_oid_get_sig_alg_desc( sig_oid, &desc ); + if( ret != 0 ) + ret = mbedtls_snprintf( p, n, "???" ); + else + ret = mbedtls_snprintf( p, n, "%s", desc ); + MBEDTLS_X509_SAFE_SNPRINTF; + +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) + if( pk_alg == MBEDTLS_PK_RSASSA_PSS ) + { + const mbedtls_pk_rsassa_pss_options *pss_opts; + const mbedtls_md_info_t *md_info, *mgf_md_info; + + pss_opts = (const mbedtls_pk_rsassa_pss_options *) sig_opts; + + md_info = mbedtls_md_info_from_type( md_alg ); + mgf_md_info = mbedtls_md_info_from_type( pss_opts->mgf1_hash_id ); + + ret = mbedtls_snprintf( p, n, " (%s, MGF1-%s, 0x%02X)", + md_info ? mbedtls_md_get_name( md_info ) : "???", + mgf_md_info ? mbedtls_md_get_name( mgf_md_info ) : "???", + pss_opts->expected_salt_len ); + MBEDTLS_X509_SAFE_SNPRINTF; + } +#else + ((void) pk_alg); + ((void) md_alg); + ((void) sig_opts); +#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */ + + return( (int)( size - n ) ); +} + +/* + * Helper for writing "RSA key size", "EC key size", etc + */ +int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name ) +{ + char *p = buf; + size_t n = buf_size; + int ret; + + ret = mbedtls_snprintf( p, n, "%s key size", name ); + MBEDTLS_X509_SAFE_SNPRINTF; + + return( 0 ); +} + +#if defined(MBEDTLS_HAVE_TIME_DATE) +/* + * Set the time structure to the current time. + * Return 0 on success, non-zero on failure. + */ +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) +static int x509_get_current_time( mbedtls_x509_time *now ) +{ + SYSTEMTIME st; + + GetSystemTime( &st ); + + now->year = st.wYear; + now->mon = st.wMonth; + now->day = st.wDay; + now->hour = st.wHour; + now->min = st.wMinute; + now->sec = st.wSecond; + + return( 0 ); +} +#else +static int x509_get_current_time( mbedtls_x509_time *now ) +{ + struct tm *lt; + mbedtls_time_t tt; + int ret = 0; + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_lock( &mbedtls_threading_gmtime_mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + tt = mbedtls_time( NULL ); + lt = gmtime( &tt ); + + if( lt == NULL ) + ret = -1; + else + { + now->year = lt->tm_year + 1900; + now->mon = lt->tm_mon + 1; + now->day = lt->tm_mday; + now->hour = lt->tm_hour; + now->min = lt->tm_min; + now->sec = lt->tm_sec; + } + +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &mbedtls_threading_gmtime_mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + return( ret ); +} +#endif /* _WIN32 && !EFIX64 && !EFI32 */ + +/* + * Return 0 if before <= after, 1 otherwise + */ +static int x509_check_time( const mbedtls_x509_time *before, const mbedtls_x509_time *after ) +{ + if( before->year > after->year ) + return( 1 ); + + if( before->year == after->year && + before->mon > after->mon ) + return( 1 ); + + if( before->year == after->year && + before->mon == after->mon && + before->day > after->day ) + return( 1 ); + + if( before->year == after->year && + before->mon == after->mon && + before->day == after->day && + before->hour > after->hour ) + return( 1 ); + + if( before->year == after->year && + before->mon == after->mon && + before->day == after->day && + before->hour == after->hour && + before->min > after->min ) + return( 1 ); + + if( before->year == after->year && + before->mon == after->mon && + before->day == after->day && + before->hour == after->hour && + before->min == after->min && + before->sec > after->sec ) + return( 1 ); + + return( 0 ); +} + +int mbedtls_x509_time_is_past( const mbedtls_x509_time *to ) +{ + mbedtls_x509_time now; + + if( x509_get_current_time( &now ) != 0 ) + return( 1 ); + + return( x509_check_time( &now, to ) ); +} + +int mbedtls_x509_time_is_future( const mbedtls_x509_time *from ) +{ + mbedtls_x509_time now; + + if( x509_get_current_time( &now ) != 0 ) + return( 1 ); + + return( x509_check_time( from, &now ) ); +} + +#else /* MBEDTLS_HAVE_TIME_DATE */ + +int mbedtls_x509_time_is_past( const mbedtls_x509_time *to ) +{ + ((void) to); + return( 0 ); +} + +int mbedtls_x509_time_is_future( const mbedtls_x509_time *from ) +{ + ((void) from); + return( 0 ); +} +#endif /* MBEDTLS_HAVE_TIME_DATE */ + +#if defined(MBEDTLS_SELF_TEST) + +#include "mbedtls/x509_crt.h" +#include "mbedtls/certs.h" + +/* + * Checkup routine + */ +int mbedtls_x509_self_test( int verbose ) +{ +#if defined(MBEDTLS_CERTS_C) && defined(MBEDTLS_SHA1_C) + int ret; + uint32_t flags; + mbedtls_x509_crt cacert; + mbedtls_x509_crt clicert; + + if( verbose != 0 ) + mbedtls_printf( " X.509 certificate load: " ); + + mbedtls_x509_crt_init( &clicert ); + + ret = mbedtls_x509_crt_parse( &clicert, (const unsigned char *) mbedtls_test_cli_crt, + mbedtls_test_cli_crt_len ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( ret ); + } + + mbedtls_x509_crt_init( &cacert ); + + ret = mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_ca_crt, + mbedtls_test_ca_crt_len ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( ret ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n X.509 signature verify: "); + + ret = mbedtls_x509_crt_verify( &clicert, &cacert, NULL, NULL, &flags, NULL, NULL ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( ret ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n\n"); + + mbedtls_x509_crt_free( &cacert ); + mbedtls_x509_crt_free( &clicert ); + + return( 0 ); +#else + ((void) verbose); + return( 0 ); +#endif /* MBEDTLS_CERTS_C && MBEDTLS_SHA1_C */ +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_X509_USE_C */ diff --git a/mbedtls/x509_create.c b/mbedtls/x509_create.c new file mode 100644 index 0000000..df20ec8 --- /dev/null +++ b/mbedtls/x509_create.c @@ -0,0 +1,340 @@ +/* + * X.509 base functions for creating certificates / CSRs + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_X509_CREATE_C) + +#include "mbedtls/x509.h" +#include "mbedtls/asn1write.h" +#include "mbedtls/oid.h" + +#include + +typedef struct { + const char *name; + size_t name_len; + const char*oid; +} x509_attr_descriptor_t; + +#define ADD_STRLEN( s ) s, sizeof( s ) - 1 + +static const x509_attr_descriptor_t x509_attrs[] = +{ + { ADD_STRLEN( "CN" ), MBEDTLS_OID_AT_CN }, + { ADD_STRLEN( "commonName" ), MBEDTLS_OID_AT_CN }, + { ADD_STRLEN( "C" ), MBEDTLS_OID_AT_COUNTRY }, + { ADD_STRLEN( "countryName" ), MBEDTLS_OID_AT_COUNTRY }, + { ADD_STRLEN( "O" ), MBEDTLS_OID_AT_ORGANIZATION }, + { ADD_STRLEN( "organizationName" ), MBEDTLS_OID_AT_ORGANIZATION }, + { ADD_STRLEN( "L" ), MBEDTLS_OID_AT_LOCALITY }, + { ADD_STRLEN( "locality" ), MBEDTLS_OID_AT_LOCALITY }, + { ADD_STRLEN( "R" ), MBEDTLS_OID_PKCS9_EMAIL }, + { ADD_STRLEN( "OU" ), MBEDTLS_OID_AT_ORG_UNIT }, + { ADD_STRLEN( "organizationalUnitName" ), MBEDTLS_OID_AT_ORG_UNIT }, + { ADD_STRLEN( "ST" ), MBEDTLS_OID_AT_STATE }, + { ADD_STRLEN( "stateOrProvinceName" ), MBEDTLS_OID_AT_STATE }, + { ADD_STRLEN( "emailAddress" ), MBEDTLS_OID_PKCS9_EMAIL }, + { ADD_STRLEN( "serialNumber" ), MBEDTLS_OID_AT_SERIAL_NUMBER }, + { ADD_STRLEN( "postalAddress" ), MBEDTLS_OID_AT_POSTAL_ADDRESS }, + { ADD_STRLEN( "postalCode" ), MBEDTLS_OID_AT_POSTAL_CODE }, + { ADD_STRLEN( "dnQualifier" ), MBEDTLS_OID_AT_DN_QUALIFIER }, + { ADD_STRLEN( "title" ), MBEDTLS_OID_AT_TITLE }, + { ADD_STRLEN( "surName" ), MBEDTLS_OID_AT_SUR_NAME }, + { ADD_STRLEN( "SN" ), MBEDTLS_OID_AT_SUR_NAME }, + { ADD_STRLEN( "givenName" ), MBEDTLS_OID_AT_GIVEN_NAME }, + { ADD_STRLEN( "GN" ), MBEDTLS_OID_AT_GIVEN_NAME }, + { ADD_STRLEN( "initials" ), MBEDTLS_OID_AT_INITIALS }, + { ADD_STRLEN( "pseudonym" ), MBEDTLS_OID_AT_PSEUDONYM }, + { ADD_STRLEN( "generationQualifier" ), MBEDTLS_OID_AT_GENERATION_QUALIFIER }, + { ADD_STRLEN( "domainComponent" ), MBEDTLS_OID_DOMAIN_COMPONENT }, + { ADD_STRLEN( "DC" ), MBEDTLS_OID_DOMAIN_COMPONENT }, + { NULL, 0, NULL } +}; + +static const char *x509_at_oid_from_name( const char *name, size_t name_len ) +{ + const x509_attr_descriptor_t *cur; + + for( cur = x509_attrs; cur->name != NULL; cur++ ) + if( cur->name_len == name_len && + strncmp( cur->name, name, name_len ) == 0 ) + break; + + return( cur->oid ); +} + +int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name ) +{ + int ret = 0; + const char *s = name, *c = s; + const char *end = s + strlen( s ); + const char *oid = NULL; + int in_tag = 1; + char data[MBEDTLS_X509_MAX_DN_NAME_SIZE]; + char *d = data; + + /* Clear existing chain if present */ + mbedtls_asn1_free_named_data_list( head ); + + while( c <= end ) + { + if( in_tag && *c == '=' ) + { + if( ( oid = x509_at_oid_from_name( s, c - s ) ) == NULL ) + { + ret = MBEDTLS_ERR_X509_UNKNOWN_OID; + goto exit; + } + + s = c + 1; + in_tag = 0; + d = data; + } + + if( !in_tag && *c == '\\' && c != end ) + { + c++; + + /* Check for valid escaped characters */ + if( c == end || *c != ',' ) + { + ret = MBEDTLS_ERR_X509_INVALID_NAME; + goto exit; + } + } + else if( !in_tag && ( *c == ',' || c == end ) ) + { + if( mbedtls_asn1_store_named_data( head, oid, strlen( oid ), + (unsigned char *) data, + d - data ) == NULL ) + { + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + } + + while( c < end && *(c + 1) == ' ' ) + c++; + + s = c + 1; + in_tag = 1; + } + + if( !in_tag && s != c + 1 ) + { + *(d++) = *c; + + if( d - data == MBEDTLS_X509_MAX_DN_NAME_SIZE ) + { + ret = MBEDTLS_ERR_X509_INVALID_NAME; + goto exit; + } + } + + c++; + } + +exit: + + return( ret ); +} + +/* The first byte of the value in the mbedtls_asn1_named_data structure is reserved + * to store the critical boolean for us + */ +int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len, + int critical, const unsigned char *val, size_t val_len ) +{ + mbedtls_asn1_named_data *cur; + + if( ( cur = mbedtls_asn1_store_named_data( head, oid, oid_len, + NULL, val_len + 1 ) ) == NULL ) + { + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + } + + cur->val.p[0] = critical; + memcpy( cur->val.p + 1, val, val_len ); + + return( 0 ); +} + +/* + * RelativeDistinguishedName ::= + * SET OF AttributeTypeAndValue + * + * AttributeTypeAndValue ::= SEQUENCE { + * type AttributeType, + * value AttributeValue } + * + * AttributeType ::= OBJECT IDENTIFIER + * + * AttributeValue ::= ANY DEFINED BY AttributeType + */ +static int x509_write_name( unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len, + const unsigned char *name, size_t name_len ) +{ + int ret; + size_t len = 0; + + // Write PrintableString for all except MBEDTLS_OID_PKCS9_EMAIL + // + if( MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_EMAIL ) == oid_len && + memcmp( oid, MBEDTLS_OID_PKCS9_EMAIL, oid_len ) == 0 ) + { + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_ia5_string( p, start, + (const char *) name, + name_len ) ); + } + else + { + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_printable_string( p, start, + (const char *) name, + name_len ) ); + } + + // Write OID + // + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SET ) ); + + return( (int) len ); +} + +int mbedtls_x509_write_names( unsigned char **p, unsigned char *start, + mbedtls_asn1_named_data *first ) +{ + int ret; + size_t len = 0; + mbedtls_asn1_named_data *cur = first; + + while( cur != NULL ) + { + MBEDTLS_ASN1_CHK_ADD( len, x509_write_name( p, start, (char *) cur->oid.p, + cur->oid.len, + cur->val.p, cur->val.len ) ); + cur = cur->next; + } + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return( (int) len ); +} + +int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len, + unsigned char *sig, size_t size ) +{ + int ret; + size_t len = 0; + + if( *p < start || (size_t)( *p - start ) < size ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + len = size; + (*p) -= len; + memcpy( *p, sig, len ); + + if( *p - start < 1 ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + *--(*p) = 0; + len += 1; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) ); + + // Write OID + // + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( p, start, oid, + oid_len, 0 ) ); + + return( (int) len ); +} + +static int x509_write_extension( unsigned char **p, unsigned char *start, + mbedtls_asn1_named_data *ext ) +{ + int ret; + size_t len = 0; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->val.p + 1, + ext->val.len - 1 ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->val.len - 1 ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) ); + + if( ext->val.p[0] != 0 ) + { + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( p, start, 1 ) ); + } + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->oid.p, + ext->oid.len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->oid.len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return( (int) len ); +} + +/* + * Extension ::= SEQUENCE { + * extnID OBJECT IDENTIFIER, + * critical BOOLEAN DEFAULT FALSE, + * extnValue OCTET STRING + * -- contains the DER encoding of an ASN.1 value + * -- corresponding to the extension type identified + * -- by extnID + * } + */ +int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start, + mbedtls_asn1_named_data *first ) +{ + int ret; + size_t len = 0; + mbedtls_asn1_named_data *cur_ext = first; + + while( cur_ext != NULL ) + { + MBEDTLS_ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) ); + cur_ext = cur_ext->next; + } + + return( (int) len ); +} + +#endif /* MBEDTLS_X509_CREATE_C */ diff --git a/mbedtls/x509_crl.c b/mbedtls/x509_crl.c new file mode 100644 index 0000000..7b2b473 --- /dev/null +++ b/mbedtls/x509_crl.c @@ -0,0 +1,722 @@ +/* + * X.509 Certidicate Revocation List (CRL) parsing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The ITU-T X.509 standard defines a certificate format for PKI. + * + * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) + * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) + * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) + * + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_X509_CRL_PARSE_C) + +#include "mbedtls/x509_crl.h" +#include "mbedtls/oid.h" + +#include + +#if defined(MBEDTLS_PEM_PARSE_C) +#include "mbedtls/pem.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_free free +#define mbedtls_calloc calloc +#define mbedtls_snprintf snprintf +#endif + +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) +#include +#else +#include +#endif + +#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32) +#include +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Version ::= INTEGER { v1(0), v2(1) } + */ +static int x509_crl_get_version( unsigned char **p, + const unsigned char *end, + int *ver ) +{ + int ret; + + if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + { + *ver = 0; + return( 0 ); + } + + return( MBEDTLS_ERR_X509_INVALID_VERSION + ret ); + } + + return( 0 ); +} + +/* + * X.509 CRL v2 extensions (no extensions parsed yet.) + */ +static int x509_get_crl_ext( unsigned char **p, + const unsigned char *end, + mbedtls_x509_buf *ext ) +{ + int ret; + size_t len = 0; + + /* Get explicit tag */ + if( ( ret = mbedtls_x509_get_ext( p, end, ext, 0) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( 0 ); + + return( ret ); + } + + while( *p < end ) + { + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + *p += len; + } + + if( *p != end ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * X.509 CRL v2 entry extensions (no extensions parsed yet.) + */ +static int x509_get_crl_entry_ext( unsigned char **p, + const unsigned char *end, + mbedtls_x509_buf *ext ) +{ + int ret; + size_t len = 0; + + /* OPTIONAL */ + if( end <= *p ) + return( 0 ); + + ext->tag = **p; + ext->p = *p; + + /* + * Get CRL-entry extension sequence header + * crlEntryExtensions Extensions OPTIONAL -- if present, MUST be v2 + */ + if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + { + ext->p = NULL; + return( 0 ); + } + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + } + + end = *p + ext->len; + + if( end != *p + ext->len ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + while( *p < end ) + { + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + *p += len; + } + + if( *p != end ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * X.509 CRL Entries + */ +static int x509_get_entries( unsigned char **p, + const unsigned char *end, + mbedtls_x509_crl_entry *entry ) +{ + int ret; + size_t entry_len; + mbedtls_x509_crl_entry *cur_entry = entry; + + if( *p == end ) + return( 0 ); + + if( ( ret = mbedtls_asn1_get_tag( p, end, &entry_len, + MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( 0 ); + + return( ret ); + } + + end = *p + entry_len; + + while( *p < end ) + { + size_t len2; + const unsigned char *end2; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len2, + MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 ) + { + return( ret ); + } + + cur_entry->raw.tag = **p; + cur_entry->raw.p = *p; + cur_entry->raw.len = len2; + end2 = *p + len2; + + if( ( ret = mbedtls_x509_get_serial( p, end2, &cur_entry->serial ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_x509_get_time( p, end2, + &cur_entry->revocation_date ) ) != 0 ) + return( ret ); + + if( ( ret = x509_get_crl_entry_ext( p, end2, + &cur_entry->entry_ext ) ) != 0 ) + return( ret ); + + if( *p < end ) + { + cur_entry->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl_entry ) ); + + if( cur_entry->next == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + cur_entry = cur_entry->next; + } + } + + return( 0 ); +} + +/* + * Parse one CRLs in DER format and append it to the chained list + */ +int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain, + const unsigned char *buf, size_t buflen ) +{ + int ret; + size_t len; + unsigned char *p, *end; + mbedtls_x509_buf sig_params1, sig_params2, sig_oid2; + mbedtls_x509_crl *crl = chain; + + /* + * Check for valid input + */ + if( crl == NULL || buf == NULL ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) ); + memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) ); + memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) ); + + /* + * Add new CRL on the end of the chain if needed. + */ + while( crl->version != 0 && crl->next != NULL ) + crl = crl->next; + + if( crl->version != 0 && crl->next == NULL ) + { + crl->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) ); + + if( crl->next == NULL ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + } + + mbedtls_x509_crl_init( crl->next ); + crl = crl->next; + } + + /* + * Copy raw DER-encoded CRL + */ + if( ( p = mbedtls_calloc( 1, buflen ) ) == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + memcpy( p, buf, buflen ); + + crl->raw.p = p; + crl->raw.len = buflen; + + end = p + buflen; + + /* + * CertificateList ::= SEQUENCE { + * tbsCertList TBSCertList, + * signatureAlgorithm AlgorithmIdentifier, + * signatureValue BIT STRING } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT ); + } + + if( len != (size_t) ( end - p ) ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + /* + * TBSCertList ::= SEQUENCE { + */ + crl->tbs.p = p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + end = p + len; + crl->tbs.len = end - crl->tbs.p; + + /* + * Version ::= INTEGER OPTIONAL { v1(0), v2(1) } + * -- if present, MUST be v2 + * + * signature AlgorithmIdentifier + */ + if( ( ret = x509_crl_get_version( &p, end, &crl->version ) ) != 0 || + ( ret = mbedtls_x509_get_alg( &p, end, &crl->sig_oid, &sig_params1 ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + + crl->version++; + + if( crl->version > 2 ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_UNKNOWN_VERSION ); + } + + if( ( ret = mbedtls_x509_get_sig_alg( &crl->sig_oid, &sig_params1, + &crl->sig_md, &crl->sig_pk, + &crl->sig_opts ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG ); + } + + /* + * issuer Name + */ + crl->issuer_raw.p = p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + if( ( ret = mbedtls_x509_get_name( &p, p + len, &crl->issuer ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + + crl->issuer_raw.len = p - crl->issuer_raw.p; + + /* + * thisUpdate Time + * nextUpdate Time OPTIONAL + */ + if( ( ret = mbedtls_x509_get_time( &p, end, &crl->this_update ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + + if( ( ret = mbedtls_x509_get_time( &p, end, &crl->next_update ) ) != 0 ) + { + if( ret != ( MBEDTLS_ERR_X509_INVALID_DATE + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) && + ret != ( MBEDTLS_ERR_X509_INVALID_DATE + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ) ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + } + + /* + * revokedCertificates SEQUENCE OF SEQUENCE { + * userCertificate CertificateSerialNumber, + * revocationDate Time, + * crlEntryExtensions Extensions OPTIONAL + * -- if present, MUST be v2 + * } OPTIONAL + */ + if( ( ret = x509_get_entries( &p, end, &crl->entry ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + + /* + * crlExtensions EXPLICIT Extensions OPTIONAL + * -- if present, MUST be v2 + */ + if( crl->version == 2 ) + { + ret = x509_get_crl_ext( &p, end, &crl->crl_ext ); + + if( ret != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + } + + if( p != end ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + end = crl->raw.p + crl->raw.len; + + /* + * signatureAlgorithm AlgorithmIdentifier, + * signatureValue BIT STRING + */ + if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + + if( crl->sig_oid.len != sig_oid2.len || + memcmp( crl->sig_oid.p, sig_oid2.p, crl->sig_oid.len ) != 0 || + sig_params1.len != sig_params2.len || + ( sig_params1.len != 0 && + memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_SIG_MISMATCH ); + } + + if( ( ret = mbedtls_x509_get_sig( &p, end, &crl->sig ) ) != 0 ) + { + mbedtls_x509_crl_free( crl ); + return( ret ); + } + + if( p != end ) + { + mbedtls_x509_crl_free( crl ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + return( 0 ); +} + +/* + * Parse one or more CRLs and add them to the chained list + */ +int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen ) +{ +#if defined(MBEDTLS_PEM_PARSE_C) + int ret; + size_t use_len; + mbedtls_pem_context pem; + int is_pem = 0; + + if( chain == NULL || buf == NULL ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + do + { + mbedtls_pem_init( &pem ); + + // Avoid calling mbedtls_pem_read_buffer() on non-null-terminated + // string + if( buflen == 0 || buf[buflen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN X509 CRL-----", + "-----END X509 CRL-----", + buf, NULL, 0, &use_len ); + + if( ret == 0 ) + { + /* + * Was PEM encoded + */ + is_pem = 1; + + buflen -= use_len; + buf += use_len; + + if( ( ret = mbedtls_x509_crl_parse_der( chain, + pem.buf, pem.buflen ) ) != 0 ) + { + return( ret ); + } + + mbedtls_pem_free( &pem ); + } + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + { + mbedtls_pem_free( &pem ); + return( ret ); + } + } + /* In the PEM case, buflen is 1 at the end, for the terminated NULL byte. + * And a valid CRL cannot be less than 1 byte anyway. */ + while( is_pem && buflen > 1 ); + + if( is_pem ) + return( 0 ); + else +#endif /* MBEDTLS_PEM_PARSE_C */ + return( mbedtls_x509_crl_parse_der( chain, buf, buflen ) ); +} + +#if defined(MBEDTLS_FS_IO) +/* + * Load one or more CRLs and add them to the chained list + */ +int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path ) +{ + int ret; + size_t n; + unsigned char *buf; + + if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) + return( ret ); + + ret = mbedtls_x509_crl_parse( chain, buf, n ); + + mbedtls_zeroize( buf, n ); + mbedtls_free( buf ); + + return( ret ); +} +#endif /* MBEDTLS_FS_IO */ + +/* + * Return an informational string about the certificate. + */ +#define BEFORE_COLON 14 +#define BC "14" +/* + * Return an informational string about the CRL. + */ +int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix, + const mbedtls_x509_crl *crl ) +{ + int ret; + size_t n; + char *p; + const mbedtls_x509_crl_entry *entry; + + p = buf; + n = size; + + ret = mbedtls_snprintf( p, n, "%sCRL version : %d", + prefix, crl->version ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%sissuer name : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + ret = mbedtls_x509_dn_gets( p, n, &crl->issuer ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%sthis update : " \ + "%04d-%02d-%02d %02d:%02d:%02d", prefix, + crl->this_update.year, crl->this_update.mon, + crl->this_update.day, crl->this_update.hour, + crl->this_update.min, crl->this_update.sec ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%snext update : " \ + "%04d-%02d-%02d %02d:%02d:%02d", prefix, + crl->next_update.year, crl->next_update.mon, + crl->next_update.day, crl->next_update.hour, + crl->next_update.min, crl->next_update.sec ); + MBEDTLS_X509_SAFE_SNPRINTF; + + entry = &crl->entry; + + ret = mbedtls_snprintf( p, n, "\n%sRevoked certificates:", + prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + while( entry != NULL && entry->raw.len != 0 ) + { + ret = mbedtls_snprintf( p, n, "\n%sserial number: ", + prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_x509_serial_gets( p, n, &entry->serial ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, " revocation date: " \ + "%04d-%02d-%02d %02d:%02d:%02d", + entry->revocation_date.year, entry->revocation_date.mon, + entry->revocation_date.day, entry->revocation_date.hour, + entry->revocation_date.min, entry->revocation_date.sec ); + MBEDTLS_X509_SAFE_SNPRINTF; + + entry = entry->next; + } + + ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_x509_sig_alg_gets( p, n, &crl->sig_oid, crl->sig_pk, crl->sig_md, + crl->sig_opts ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n" ); + MBEDTLS_X509_SAFE_SNPRINTF; + + return( (int) ( size - n ) ); +} + +/* + * Initialize a CRL chain + */ +void mbedtls_x509_crl_init( mbedtls_x509_crl *crl ) +{ + memset( crl, 0, sizeof(mbedtls_x509_crl) ); +} + +/* + * Unallocate all CRL data + */ +void mbedtls_x509_crl_free( mbedtls_x509_crl *crl ) +{ + mbedtls_x509_crl *crl_cur = crl; + mbedtls_x509_crl *crl_prv; + mbedtls_x509_name *name_cur; + mbedtls_x509_name *name_prv; + mbedtls_x509_crl_entry *entry_cur; + mbedtls_x509_crl_entry *entry_prv; + + if( crl == NULL ) + return; + + do + { +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) + mbedtls_free( crl_cur->sig_opts ); +#endif + + name_cur = crl_cur->issuer.next; + while( name_cur != NULL ) + { + name_prv = name_cur; + name_cur = name_cur->next; + mbedtls_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); + mbedtls_free( name_prv ); + } + + entry_cur = crl_cur->entry.next; + while( entry_cur != NULL ) + { + entry_prv = entry_cur; + entry_cur = entry_cur->next; + mbedtls_zeroize( entry_prv, sizeof( mbedtls_x509_crl_entry ) ); + mbedtls_free( entry_prv ); + } + + if( crl_cur->raw.p != NULL ) + { + mbedtls_zeroize( crl_cur->raw.p, crl_cur->raw.len ); + mbedtls_free( crl_cur->raw.p ); + } + + crl_cur = crl_cur->next; + } + while( crl_cur != NULL ); + + crl_cur = crl; + do + { + crl_prv = crl_cur; + crl_cur = crl_cur->next; + + mbedtls_zeroize( crl_prv, sizeof( mbedtls_x509_crl ) ); + if( crl_prv != crl ) + mbedtls_free( crl_prv ); + } + while( crl_cur != NULL ); +} + +#endif /* MBEDTLS_X509_CRL_PARSE_C */ diff --git a/mbedtls/x509_crt.c b/mbedtls/x509_crt.c new file mode 100644 index 0000000..60e14f9 --- /dev/null +++ b/mbedtls/x509_crt.c @@ -0,0 +1,2394 @@ +/* + * X.509 certificate parsing and verification + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The ITU-T X.509 standard defines a certificate format for PKI. + * + * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) + * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) + * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) + * + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + +#include "mbedtls/x509_crt.h" +#include "mbedtls/oid.h" + +#include +#include + +#if defined(MBEDTLS_PEM_PARSE_C) +#include "mbedtls/pem.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_free free +#define mbedtls_calloc calloc +#define mbedtls_snprintf snprintf +#endif + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) +#include +#else +#include +#endif + +#if defined(MBEDTLS_FS_IO) +#include +#if !defined(_WIN32) || defined(EFIX64) || defined(EFI32) +#include +#include +#include +#endif /* !_WIN32 || EFIX64 || EFI32 */ +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Default profile + */ +const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default = +{ + /* Hashes from SHA-1 and above */ + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_RIPEMD160 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA224 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ), + 0xFFFFFFF, /* Any PK alg */ + 0xFFFFFFF, /* Any curve */ + 2048, +}; + +/* + * Next-default profile + */ +const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next = +{ + /* Hashes from SHA-256 and above */ + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ), + 0xFFFFFFF, /* Any PK alg */ +#if defined(MBEDTLS_ECP_C) + /* Curves at or above 128-bit security level */ + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP521R1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP256R1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP384R1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP512R1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256K1 ), +#else + 0, +#endif + 2048, +}; + +/* + * NSA Suite B Profile + */ +const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb = +{ + /* Only SHA-256 and 384 */ + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ), + /* Only ECDSA */ + MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_ECDSA ), +#if defined(MBEDTLS_ECP_C) + /* Only NIST P-256 and P-384 */ + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) | + MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ), +#else + 0, +#endif + 0, +}; + +/* + * Check md_alg against profile + * Return 0 if md_alg acceptable for this profile, -1 otherwise + */ +static int x509_profile_check_md_alg( const mbedtls_x509_crt_profile *profile, + mbedtls_md_type_t md_alg ) +{ + if( ( profile->allowed_mds & MBEDTLS_X509_ID_FLAG( md_alg ) ) != 0 ) + return( 0 ); + + return( -1 ); +} + +/* + * Check pk_alg against profile + * Return 0 if pk_alg acceptable for this profile, -1 otherwise + */ +static int x509_profile_check_pk_alg( const mbedtls_x509_crt_profile *profile, + mbedtls_pk_type_t pk_alg ) +{ + if( ( profile->allowed_pks & MBEDTLS_X509_ID_FLAG( pk_alg ) ) != 0 ) + return( 0 ); + + return( -1 ); +} + +/* + * Check key against profile + * Return 0 if pk_alg acceptable for this profile, -1 otherwise + */ +static int x509_profile_check_key( const mbedtls_x509_crt_profile *profile, + mbedtls_pk_type_t pk_alg, + const mbedtls_pk_context *pk ) +{ +#if defined(MBEDTLS_RSA_C) + if( pk_alg == MBEDTLS_PK_RSA || pk_alg == MBEDTLS_PK_RSASSA_PSS ) + { + if( mbedtls_pk_get_bitlen( pk ) >= profile->rsa_min_bitlen ) + return( 0 ); + + return( -1 ); + } +#endif + +#if defined(MBEDTLS_ECP_C) + if( pk_alg == MBEDTLS_PK_ECDSA || + pk_alg == MBEDTLS_PK_ECKEY || + pk_alg == MBEDTLS_PK_ECKEY_DH ) + { + mbedtls_ecp_group_id gid = mbedtls_pk_ec( *pk )->grp.id; + + if( ( profile->allowed_curves & MBEDTLS_X509_ID_FLAG( gid ) ) != 0 ) + return( 0 ); + + return( -1 ); + } +#endif + + return( -1 ); +} + +/* + * Version ::= INTEGER { v1(0), v2(1), v3(2) } + */ +static int x509_get_version( unsigned char **p, + const unsigned char *end, + int *ver ) +{ + int ret; + size_t len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + { + *ver = 0; + return( 0 ); + } + + return( ret ); + } + + end = *p + len; + + if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_VERSION + ret ); + + if( *p != end ) + return( MBEDTLS_ERR_X509_INVALID_VERSION + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * Validity ::= SEQUENCE { + * notBefore Time, + * notAfter Time } + */ +static int x509_get_dates( unsigned char **p, + const unsigned char *end, + mbedtls_x509_time *from, + mbedtls_x509_time *to ) +{ + int ret; + size_t len; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_DATE + ret ); + + end = *p + len; + + if( ( ret = mbedtls_x509_get_time( p, end, from ) ) != 0 ) + return( ret ); + + if( ( ret = mbedtls_x509_get_time( p, end, to ) ) != 0 ) + return( ret ); + + if( *p != end ) + return( MBEDTLS_ERR_X509_INVALID_DATE + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * X.509 v2/v3 unique identifier (not parsed) + */ +static int x509_get_uid( unsigned char **p, + const unsigned char *end, + mbedtls_x509_buf *uid, int n ) +{ + int ret; + + if( *p == end ) + return( 0 ); + + uid->tag = **p; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &uid->len, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | n ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( 0 ); + + return( ret ); + } + + uid->p = *p; + *p += uid->len; + + return( 0 ); +} + +static int x509_get_basic_constraints( unsigned char **p, + const unsigned char *end, + int *ca_istrue, + int *max_pathlen ) +{ + int ret; + size_t len; + + /* + * BasicConstraints ::= SEQUENCE { + * cA BOOLEAN DEFAULT FALSE, + * pathLenConstraint INTEGER (0..MAX) OPTIONAL } + */ + *ca_istrue = 0; /* DEFAULT FALSE */ + *max_pathlen = 0; /* endless */ + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( *p == end ) + return( 0 ); + + if( ( ret = mbedtls_asn1_get_bool( p, end, ca_istrue ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + ret = mbedtls_asn1_get_int( p, end, ca_istrue ); + + if( ret != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( *ca_istrue != 0 ) + *ca_istrue = 1; + } + + if( *p == end ) + return( 0 ); + + if( ( ret = mbedtls_asn1_get_int( p, end, max_pathlen ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( *p != end ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + (*max_pathlen)++; + + return( 0 ); +} + +static int x509_get_ns_cert_type( unsigned char **p, + const unsigned char *end, + unsigned char *ns_cert_type) +{ + int ret; + mbedtls_x509_bitstring bs = { 0, 0, NULL }; + + if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( bs.len != 1 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_INVALID_LENGTH ); + + /* Get actual bitstring */ + *ns_cert_type = *bs.p; + return( 0 ); +} + +static int x509_get_key_usage( unsigned char **p, + const unsigned char *end, + unsigned int *key_usage) +{ + int ret; + size_t i; + mbedtls_x509_bitstring bs = { 0, 0, NULL }; + + if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( bs.len < 1 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_INVALID_LENGTH ); + + /* Get actual bitstring */ + *key_usage = 0; + for( i = 0; i < bs.len && i < sizeof( unsigned int ); i++ ) + { + *key_usage |= (unsigned int) bs.p[i] << (8*i); + } + + return( 0 ); +} + +/* + * ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId + * + * KeyPurposeId ::= OBJECT IDENTIFIER + */ +static int x509_get_ext_key_usage( unsigned char **p, + const unsigned char *end, + mbedtls_x509_sequence *ext_key_usage) +{ + int ret; + + if( ( ret = mbedtls_asn1_get_sequence_of( p, end, ext_key_usage, MBEDTLS_ASN1_OID ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + /* Sequence length must be >= 1 */ + if( ext_key_usage->buf.p == NULL ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_INVALID_LENGTH ); + + return( 0 ); +} + +/* + * SubjectAltName ::= GeneralNames + * + * GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName + * + * GeneralName ::= CHOICE { + * otherName [0] OtherName, + * rfc822Name [1] IA5String, + * dNSName [2] IA5String, + * x400Address [3] ORAddress, + * directoryName [4] Name, + * ediPartyName [5] EDIPartyName, + * uniformResourceIdentifier [6] IA5String, + * iPAddress [7] OCTET STRING, + * registeredID [8] OBJECT IDENTIFIER } + * + * OtherName ::= SEQUENCE { + * type-id OBJECT IDENTIFIER, + * value [0] EXPLICIT ANY DEFINED BY type-id } + * + * EDIPartyName ::= SEQUENCE { + * nameAssigner [0] DirectoryString OPTIONAL, + * partyName [1] DirectoryString } + * + * NOTE: we only parse and use dNSName at this point. + */ +static int x509_get_subject_alt_name( unsigned char **p, + const unsigned char *end, + mbedtls_x509_sequence *subject_alt_name ) +{ + int ret; + size_t len, tag_len; + mbedtls_asn1_buf *buf; + unsigned char tag; + mbedtls_asn1_sequence *cur = subject_alt_name; + + /* Get main sequence tag */ + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( *p + len != end ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + while( *p < end ) + { + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + tag = **p; + (*p)++; + if( ( ret = mbedtls_asn1_get_len( p, end, &tag_len ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + if( ( tag & MBEDTLS_ASN1_CONTEXT_SPECIFIC ) != MBEDTLS_ASN1_CONTEXT_SPECIFIC ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + + /* Skip everything but DNS name */ + if( tag != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | 2 ) ) + { + *p += tag_len; + continue; + } + + /* Allocate and assign next pointer */ + if( cur->buf.p != NULL ) + { + if( cur->next != NULL ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS ); + + cur->next = mbedtls_calloc( 1, sizeof( mbedtls_asn1_sequence ) ); + + if( cur->next == NULL ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_ALLOC_FAILED ); + + cur = cur->next; + } + + buf = &(cur->buf); + buf->tag = tag; + buf->p = *p; + buf->len = tag_len; + *p += buf->len; + } + + /* Set final sequence entry's next pointer to NULL */ + cur->next = NULL; + + if( *p != end ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * X.509 v3 extensions + * + */ +static int x509_get_crt_ext( unsigned char **p, + const unsigned char *end, + mbedtls_x509_crt *crt ) +{ + int ret; + size_t len; + unsigned char *end_ext_data, *end_ext_octet; + + if( ( ret = mbedtls_x509_get_ext( p, end, &crt->v3_ext, 3 ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + return( 0 ); + + return( ret ); + } + + while( *p < end ) + { + /* + * Extension ::= SEQUENCE { + * extnID OBJECT IDENTIFIER, + * critical BOOLEAN DEFAULT FALSE, + * extnValue OCTET STRING } + */ + mbedtls_x509_buf extn_oid = {0, 0, NULL}; + int is_critical = 0; /* DEFAULT FALSE */ + int ext_type = 0; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + end_ext_data = *p + len; + + /* Get extension ID */ + extn_oid.tag = **p; + + if( ( ret = mbedtls_asn1_get_tag( p, end, &extn_oid.len, MBEDTLS_ASN1_OID ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + extn_oid.p = *p; + *p += extn_oid.len; + + if( ( end - *p ) < 1 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_OUT_OF_DATA ); + + /* Get optional critical */ + if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data, &is_critical ) ) != 0 && + ( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + /* Data should be octet string type */ + if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len, + MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); + + end_ext_octet = *p + len; + + if( end_ext_octet != end_ext_data ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + /* + * Detect supported extensions + */ + ret = mbedtls_oid_get_x509_ext_type( &extn_oid, &ext_type ); + + if( ret != 0 ) + { + /* No parser found, skip extension */ + *p = end_ext_octet; + +#if !defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION) + if( is_critical ) + { + /* Data is marked as critical: fail */ + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); + } +#endif + continue; + } + + /* Forbid repeated extensions */ + if( ( crt->ext_types & ext_type ) != 0 ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS ); + + crt->ext_types |= ext_type; + + switch( ext_type ) + { + case MBEDTLS_X509_EXT_BASIC_CONSTRAINTS: + /* Parse basic constraints */ + if( ( ret = x509_get_basic_constraints( p, end_ext_octet, + &crt->ca_istrue, &crt->max_pathlen ) ) != 0 ) + return( ret ); + break; + + case MBEDTLS_X509_EXT_KEY_USAGE: + /* Parse key usage */ + if( ( ret = x509_get_key_usage( p, end_ext_octet, + &crt->key_usage ) ) != 0 ) + return( ret ); + break; + + case MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE: + /* Parse extended key usage */ + if( ( ret = x509_get_ext_key_usage( p, end_ext_octet, + &crt->ext_key_usage ) ) != 0 ) + return( ret ); + break; + + case MBEDTLS_X509_EXT_SUBJECT_ALT_NAME: + /* Parse subject alt name */ + if( ( ret = x509_get_subject_alt_name( p, end_ext_octet, + &crt->subject_alt_names ) ) != 0 ) + return( ret ); + break; + + case MBEDTLS_X509_EXT_NS_CERT_TYPE: + /* Parse netscape certificate type */ + if( ( ret = x509_get_ns_cert_type( p, end_ext_octet, + &crt->ns_cert_type ) ) != 0 ) + return( ret ); + break; + + default: + return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE ); + } + } + + if( *p != end ) + return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + + return( 0 ); +} + +/* + * Parse and fill a single X.509 certificate in DER format + */ +static int x509_crt_parse_der_core( mbedtls_x509_crt *crt, const unsigned char *buf, + size_t buflen ) +{ + int ret; + size_t len; + unsigned char *p, *end, *crt_end; + mbedtls_x509_buf sig_params1, sig_params2, sig_oid2; + + memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) ); + memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) ); + memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) ); + + /* + * Check for valid input + */ + if( crt == NULL || buf == NULL ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + // Use the original buffer until we figure out actual length + p = (unsigned char*) buf; + len = buflen; + end = p + len; + + /* + * Certificate ::= SEQUENCE { + * tbsCertificate TBSCertificate, + * signatureAlgorithm AlgorithmIdentifier, + * signatureValue BIT STRING } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT ); + } + + if( len > (size_t) ( end - p ) ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + crt_end = p + len; + + // Create and populate a new buffer for the raw field + crt->raw.len = crt_end - buf; + crt->raw.p = p = mbedtls_calloc( 1, crt->raw.len ); + if( p == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + memcpy( p, buf, crt->raw.len ); + + // Direct pointers to the new buffer + p += crt->raw.len - len; + end = crt_end = p + len; + + /* + * TBSCertificate ::= SEQUENCE { + */ + crt->tbs.p = p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + end = p + len; + crt->tbs.len = end - crt->tbs.p; + + /* + * Version ::= INTEGER { v1(0), v2(1), v3(2) } + * + * CertificateSerialNumber ::= INTEGER + * + * signature AlgorithmIdentifier + */ + if( ( ret = x509_get_version( &p, end, &crt->version ) ) != 0 || + ( ret = mbedtls_x509_get_serial( &p, end, &crt->serial ) ) != 0 || + ( ret = mbedtls_x509_get_alg( &p, end, &crt->sig_oid, + &sig_params1 ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + crt->version++; + + if( crt->version > 3 ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_UNKNOWN_VERSION ); + } + + if( ( ret = mbedtls_x509_get_sig_alg( &crt->sig_oid, &sig_params1, + &crt->sig_md, &crt->sig_pk, + &crt->sig_opts ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + /* + * issuer Name + */ + crt->issuer_raw.p = p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + if( ( ret = mbedtls_x509_get_name( &p, p + len, &crt->issuer ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + crt->issuer_raw.len = p - crt->issuer_raw.p; + + /* + * Validity ::= SEQUENCE { + * notBefore Time, + * notAfter Time } + * + */ + if( ( ret = x509_get_dates( &p, end, &crt->valid_from, + &crt->valid_to ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + /* + * subject Name + */ + crt->subject_raw.p = p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + if( len && ( ret = mbedtls_x509_get_name( &p, p + len, &crt->subject ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + crt->subject_raw.len = p - crt->subject_raw.p; + + /* + * SubjectPublicKeyInfo + */ + if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &crt->pk ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + /* + * issuerUniqueID [1] IMPLICIT UniqueIdentifier OPTIONAL, + * -- If present, version shall be v2 or v3 + * subjectUniqueID [2] IMPLICIT UniqueIdentifier OPTIONAL, + * -- If present, version shall be v2 or v3 + * extensions [3] EXPLICIT Extensions OPTIONAL + * -- If present, version shall be v3 + */ + if( crt->version == 2 || crt->version == 3 ) + { + ret = x509_get_uid( &p, end, &crt->issuer_id, 1 ); + if( ret != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + } + + if( crt->version == 2 || crt->version == 3 ) + { + ret = x509_get_uid( &p, end, &crt->subject_id, 2 ); + if( ret != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + } + +#if !defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3) + if( crt->version == 3 ) +#endif + { + ret = x509_get_crt_ext( &p, end, crt ); + if( ret != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + } + + if( p != end ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + end = crt_end; + + /* + * } + * -- end of TBSCertificate + * + * signatureAlgorithm AlgorithmIdentifier, + * signatureValue BIT STRING + */ + if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + if( crt->sig_oid.len != sig_oid2.len || + memcmp( crt->sig_oid.p, sig_oid2.p, crt->sig_oid.len ) != 0 || + sig_params1.len != sig_params2.len || + ( sig_params1.len != 0 && + memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_SIG_MISMATCH ); + } + + if( ( ret = mbedtls_x509_get_sig( &p, end, &crt->sig ) ) != 0 ) + { + mbedtls_x509_crt_free( crt ); + return( ret ); + } + + if( p != end ) + { + mbedtls_x509_crt_free( crt ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + return( 0 ); +} + +/* + * Parse one X.509 certificate in DER format from a buffer and add them to a + * chained list + */ +int mbedtls_x509_crt_parse_der( mbedtls_x509_crt *chain, const unsigned char *buf, + size_t buflen ) +{ + int ret; + mbedtls_x509_crt *crt = chain, *prev = NULL; + + /* + * Check for valid input + */ + if( crt == NULL || buf == NULL ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + while( crt->version != 0 && crt->next != NULL ) + { + prev = crt; + crt = crt->next; + } + + /* + * Add new certificate on the end of the chain if needed. + */ + if( crt->version != 0 && crt->next == NULL ) + { + crt->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ); + + if( crt->next == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + prev = crt; + mbedtls_x509_crt_init( crt->next ); + crt = crt->next; + } + + if( ( ret = x509_crt_parse_der_core( crt, buf, buflen ) ) != 0 ) + { + if( prev ) + prev->next = NULL; + + if( crt != chain ) + mbedtls_free( crt ); + + return( ret ); + } + + return( 0 ); +} + +/* + * Parse one or more PEM certificates from a buffer and add them to the chained + * list + */ +int mbedtls_x509_crt_parse( mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen ) +{ + int success = 0, first_error = 0, total_failed = 0; +#if defined(MBEDTLS_PEM_PARSE_C) + int buf_format = MBEDTLS_X509_FORMAT_DER; +#endif + + /* + * Check for valid input + */ + if( chain == NULL || buf == NULL ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + /* + * Determine buffer content. Buffer contains either one DER certificate or + * one or more PEM certificates. + */ +#if defined(MBEDTLS_PEM_PARSE_C) + if( buflen != 0 && buf[buflen - 1] == '\0' && + strstr( (const char *) buf, "-----BEGIN CERTIFICATE-----" ) != NULL ) + { + buf_format = MBEDTLS_X509_FORMAT_PEM; + } + + if( buf_format == MBEDTLS_X509_FORMAT_DER ) + return mbedtls_x509_crt_parse_der( chain, buf, buflen ); +#else + return mbedtls_x509_crt_parse_der( chain, buf, buflen ); +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) + if( buf_format == MBEDTLS_X509_FORMAT_PEM ) + { + int ret; + mbedtls_pem_context pem; + + /* 1 rather than 0 since the terminating NULL byte is counted in */ + while( buflen > 1 ) + { + size_t use_len; + mbedtls_pem_init( &pem ); + + /* If we get there, we know the string is null-terminated */ + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN CERTIFICATE-----", + "-----END CERTIFICATE-----", + buf, NULL, 0, &use_len ); + + if( ret == 0 ) + { + /* + * Was PEM encoded + */ + buflen -= use_len; + buf += use_len; + } + else if( ret == MBEDTLS_ERR_PEM_BAD_INPUT_DATA ) + { + return( ret ); + } + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + { + mbedtls_pem_free( &pem ); + + /* + * PEM header and footer were found + */ + buflen -= use_len; + buf += use_len; + + if( first_error == 0 ) + first_error = ret; + + total_failed++; + continue; + } + else + break; + + ret = mbedtls_x509_crt_parse_der( chain, pem.buf, pem.buflen ); + + mbedtls_pem_free( &pem ); + + if( ret != 0 ) + { + /* + * Quit parsing on a memory error + */ + if( ret == MBEDTLS_ERR_X509_ALLOC_FAILED ) + return( ret ); + + if( first_error == 0 ) + first_error = ret; + + total_failed++; + continue; + } + + success = 1; + } + } + + if( success ) + return( total_failed ); + else if( first_error ) + return( first_error ); + else + return( MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT ); +#endif /* MBEDTLS_PEM_PARSE_C */ +} + +#if defined(MBEDTLS_FS_IO) +/* + * Load one or more certificates and add them to the chained list + */ +int mbedtls_x509_crt_parse_file( mbedtls_x509_crt *chain, const char *path ) +{ + int ret; + size_t n; + unsigned char *buf; + + if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) + return( ret ); + + ret = mbedtls_x509_crt_parse( chain, buf, n ); + + mbedtls_zeroize( buf, n ); + mbedtls_free( buf ); + + return( ret ); +} + +int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path ) +{ + int ret = 0; +#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) + int w_ret; + WCHAR szDir[MAX_PATH]; + char filename[MAX_PATH]; + char *p; + size_t len = strlen( path ); + + WIN32_FIND_DATAW file_data; + HANDLE hFind; + + if( len > MAX_PATH - 3 ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + memset( szDir, 0, sizeof(szDir) ); + memset( filename, 0, MAX_PATH ); + memcpy( filename, path, len ); + filename[len++] = '\\'; + p = filename + len; + filename[len++] = '*'; + + w_ret = MultiByteToWideChar( CP_ACP, 0, filename, len, szDir, + MAX_PATH - 3 ); + if( w_ret == 0 ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + hFind = FindFirstFileW( szDir, &file_data ); + if( hFind == INVALID_HANDLE_VALUE ) + return( MBEDTLS_ERR_X509_FILE_IO_ERROR ); + + len = MAX_PATH - len; + do + { + memset( p, 0, len ); + + if( file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) + continue; + + w_ret = WideCharToMultiByte( CP_ACP, 0, file_data.cFileName, + lstrlenW( file_data.cFileName ), + p, (int) len - 1, + NULL, NULL ); + if( w_ret == 0 ) + return( MBEDTLS_ERR_X509_FILE_IO_ERROR ); + + w_ret = mbedtls_x509_crt_parse_file( chain, filename ); + if( w_ret < 0 ) + ret++; + else + ret += w_ret; + } + while( FindNextFileW( hFind, &file_data ) != 0 ); + + if( GetLastError() != ERROR_NO_MORE_FILES ) + ret = MBEDTLS_ERR_X509_FILE_IO_ERROR; + + FindClose( hFind ); +#else /* _WIN32 */ + int t_ret; + int snp_ret; + struct stat sb; + struct dirent *entry; + char entry_name[MBEDTLS_X509_MAX_FILE_PATH_LEN]; + DIR *dir = opendir( path ); + + if( dir == NULL ) + return( MBEDTLS_ERR_X509_FILE_IO_ERROR ); + +#if defined(MBEDTLS_THREADING_PTHREAD) + if( ( ret = mbedtls_mutex_lock( &mbedtls_threading_readdir_mutex ) ) != 0 ) + { + closedir( dir ); + return( ret ); + } +#endif + + while( ( entry = readdir( dir ) ) != NULL ) + { + snp_ret = mbedtls_snprintf( entry_name, sizeof entry_name, + "%s/%s", path, entry->d_name ); + + if( snp_ret < 0 || (size_t)snp_ret >= sizeof entry_name ) + { + ret = MBEDTLS_ERR_X509_BUFFER_TOO_SMALL; + goto cleanup; + } + else if( stat( entry_name, &sb ) == -1 ) + { + ret = MBEDTLS_ERR_X509_FILE_IO_ERROR; + goto cleanup; + } + + if( !S_ISREG( sb.st_mode ) ) + continue; + + // Ignore parse errors + // + t_ret = mbedtls_x509_crt_parse_file( chain, entry_name ); + if( t_ret < 0 ) + ret++; + else + ret += t_ret; + } + +cleanup: + closedir( dir ); + +#if defined(MBEDTLS_THREADING_PTHREAD) + if( mbedtls_mutex_unlock( &mbedtls_threading_readdir_mutex ) != 0 ) + ret = MBEDTLS_ERR_THREADING_MUTEX_ERROR; +#endif + +#endif /* _WIN32 */ + + return( ret ); +} +#endif /* MBEDTLS_FS_IO */ + +static int x509_info_subject_alt_name( char **buf, size_t *size, + const mbedtls_x509_sequence *subject_alt_name ) +{ + size_t i; + size_t n = *size; + char *p = *buf; + const mbedtls_x509_sequence *cur = subject_alt_name; + const char *sep = ""; + size_t sep_len = 0; + + while( cur != NULL ) + { + if( cur->buf.len + sep_len >= n ) + { + *p = '\0'; + return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); + } + + n -= cur->buf.len + sep_len; + for( i = 0; i < sep_len; i++ ) + *p++ = sep[i]; + for( i = 0; i < cur->buf.len; i++ ) + *p++ = cur->buf.p[i]; + + sep = ", "; + sep_len = 2; + + cur = cur->next; + } + + *p = '\0'; + + *size = n; + *buf = p; + + return( 0 ); +} + +#define PRINT_ITEM(i) \ + { \ + ret = mbedtls_snprintf( p, n, "%s" i, sep ); \ + MBEDTLS_X509_SAFE_SNPRINTF; \ + sep = ", "; \ + } + +#define CERT_TYPE(type,name) \ + if( ns_cert_type & type ) \ + PRINT_ITEM( name ); + +static int x509_info_cert_type( char **buf, size_t *size, + unsigned char ns_cert_type ) +{ + int ret; + size_t n = *size; + char *p = *buf; + const char *sep = ""; + + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT, "SSL Client" ); + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER, "SSL Server" ); + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL, "Email" ); + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING, "Object Signing" ); + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_RESERVED, "Reserved" ); + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CA, "SSL CA" ); + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA, "Email CA" ); + CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA, "Object Signing CA" ); + + *size = n; + *buf = p; + + return( 0 ); +} + +#define KEY_USAGE(code,name) \ + if( key_usage & code ) \ + PRINT_ITEM( name ); + +static int x509_info_key_usage( char **buf, size_t *size, + unsigned int key_usage ) +{ + int ret; + size_t n = *size; + char *p = *buf; + const char *sep = ""; + + KEY_USAGE( MBEDTLS_X509_KU_DIGITAL_SIGNATURE, "Digital Signature" ); + KEY_USAGE( MBEDTLS_X509_KU_NON_REPUDIATION, "Non Repudiation" ); + KEY_USAGE( MBEDTLS_X509_KU_KEY_ENCIPHERMENT, "Key Encipherment" ); + KEY_USAGE( MBEDTLS_X509_KU_DATA_ENCIPHERMENT, "Data Encipherment" ); + KEY_USAGE( MBEDTLS_X509_KU_KEY_AGREEMENT, "Key Agreement" ); + KEY_USAGE( MBEDTLS_X509_KU_KEY_CERT_SIGN, "Key Cert Sign" ); + KEY_USAGE( MBEDTLS_X509_KU_CRL_SIGN, "CRL Sign" ); + KEY_USAGE( MBEDTLS_X509_KU_ENCIPHER_ONLY, "Encipher Only" ); + KEY_USAGE( MBEDTLS_X509_KU_DECIPHER_ONLY, "Decipher Only" ); + + *size = n; + *buf = p; + + return( 0 ); +} + +static int x509_info_ext_key_usage( char **buf, size_t *size, + const mbedtls_x509_sequence *extended_key_usage ) +{ + int ret; + const char *desc; + size_t n = *size; + char *p = *buf; + const mbedtls_x509_sequence *cur = extended_key_usage; + const char *sep = ""; + + while( cur != NULL ) + { + if( mbedtls_oid_get_extended_key_usage( &cur->buf, &desc ) != 0 ) + desc = "???"; + + ret = mbedtls_snprintf( p, n, "%s%s", sep, desc ); + MBEDTLS_X509_SAFE_SNPRINTF; + + sep = ", "; + + cur = cur->next; + } + + *size = n; + *buf = p; + + return( 0 ); +} + +/* + * Return an informational string about the certificate. + */ +#define BEFORE_COLON 18 +#define BC "18" +int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix, + const mbedtls_x509_crt *crt ) +{ + int ret; + size_t n; + char *p; + char key_size_str[BEFORE_COLON]; + + p = buf; + n = size; + + if( NULL == crt ) + { + ret = mbedtls_snprintf( p, n, "\nCertificate is uninitialised!\n" ); + MBEDTLS_X509_SAFE_SNPRINTF; + + return( (int) ( size - n ) ); + } + + ret = mbedtls_snprintf( p, n, "%scert. version : %d\n", + prefix, crt->version ); + MBEDTLS_X509_SAFE_SNPRINTF; + ret = mbedtls_snprintf( p, n, "%sserial number : ", + prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_x509_serial_gets( p, n, &crt->serial ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%sissuer name : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + ret = mbedtls_x509_dn_gets( p, n, &crt->issuer ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%ssubject name : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + ret = mbedtls_x509_dn_gets( p, n, &crt->subject ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%sissued on : " \ + "%04d-%02d-%02d %02d:%02d:%02d", prefix, + crt->valid_from.year, crt->valid_from.mon, + crt->valid_from.day, crt->valid_from.hour, + crt->valid_from.min, crt->valid_from.sec ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%sexpires on : " \ + "%04d-%02d-%02d %02d:%02d:%02d", prefix, + crt->valid_to.year, crt->valid_to.mon, + crt->valid_to.day, crt->valid_to.hour, + crt->valid_to.min, crt->valid_to.sec ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_x509_sig_alg_gets( p, n, &crt->sig_oid, crt->sig_pk, + crt->sig_md, crt->sig_opts ); + MBEDTLS_X509_SAFE_SNPRINTF; + + /* Key size */ + if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON, + mbedtls_pk_get_name( &crt->pk ) ) ) != 0 ) + { + return( ret ); + } + + ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits", prefix, key_size_str, + (int) mbedtls_pk_get_bitlen( &crt->pk ) ); + MBEDTLS_X509_SAFE_SNPRINTF; + + /* + * Optional extensions + */ + + if( crt->ext_types & MBEDTLS_X509_EXT_BASIC_CONSTRAINTS ) + { + ret = mbedtls_snprintf( p, n, "\n%sbasic constraints : CA=%s", prefix, + crt->ca_istrue ? "true" : "false" ); + MBEDTLS_X509_SAFE_SNPRINTF; + + if( crt->max_pathlen > 0 ) + { + ret = mbedtls_snprintf( p, n, ", max_pathlen=%d", crt->max_pathlen - 1 ); + MBEDTLS_X509_SAFE_SNPRINTF; + } + } + + if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME ) + { + ret = mbedtls_snprintf( p, n, "\n%ssubject alt name : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + if( ( ret = x509_info_subject_alt_name( &p, &n, + &crt->subject_alt_names ) ) != 0 ) + return( ret ); + } + + if( crt->ext_types & MBEDTLS_X509_EXT_NS_CERT_TYPE ) + { + ret = mbedtls_snprintf( p, n, "\n%scert. type : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + if( ( ret = x509_info_cert_type( &p, &n, crt->ns_cert_type ) ) != 0 ) + return( ret ); + } + + if( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE ) + { + ret = mbedtls_snprintf( p, n, "\n%skey usage : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + if( ( ret = x509_info_key_usage( &p, &n, crt->key_usage ) ) != 0 ) + return( ret ); + } + + if( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE ) + { + ret = mbedtls_snprintf( p, n, "\n%sext key usage : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + if( ( ret = x509_info_ext_key_usage( &p, &n, + &crt->ext_key_usage ) ) != 0 ) + return( ret ); + } + + ret = mbedtls_snprintf( p, n, "\n" ); + MBEDTLS_X509_SAFE_SNPRINTF; + + return( (int) ( size - n ) ); +} + +struct x509_crt_verify_string { + int code; + const char *string; +}; + +static const struct x509_crt_verify_string x509_crt_verify_strings[] = { + { MBEDTLS_X509_BADCERT_EXPIRED, "The certificate validity has expired" }, + { MBEDTLS_X509_BADCERT_REVOKED, "The certificate has been revoked (is on a CRL)" }, + { MBEDTLS_X509_BADCERT_CN_MISMATCH, "The certificate Common Name (CN) does not match with the expected CN" }, + { MBEDTLS_X509_BADCERT_NOT_TRUSTED, "The certificate is not correctly signed by the trusted CA" }, + { MBEDTLS_X509_BADCRL_NOT_TRUSTED, "The CRL is not correctly signed by the trusted CA" }, + { MBEDTLS_X509_BADCRL_EXPIRED, "The CRL is expired" }, + { MBEDTLS_X509_BADCERT_MISSING, "Certificate was missing" }, + { MBEDTLS_X509_BADCERT_SKIP_VERIFY, "Certificate verification was skipped" }, + { MBEDTLS_X509_BADCERT_OTHER, "Other reason (can be used by verify callback)" }, + { MBEDTLS_X509_BADCERT_FUTURE, "The certificate validity starts in the future" }, + { MBEDTLS_X509_BADCRL_FUTURE, "The CRL is from the future" }, + { MBEDTLS_X509_BADCERT_KEY_USAGE, "Usage does not match the keyUsage extension" }, + { MBEDTLS_X509_BADCERT_EXT_KEY_USAGE, "Usage does not match the extendedKeyUsage extension" }, + { MBEDTLS_X509_BADCERT_NS_CERT_TYPE, "Usage does not match the nsCertType extension" }, + { MBEDTLS_X509_BADCERT_BAD_MD, "The certificate is signed with an unacceptable hash." }, + { MBEDTLS_X509_BADCERT_BAD_PK, "The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA)." }, + { MBEDTLS_X509_BADCERT_BAD_KEY, "The certificate is signed with an unacceptable key (eg bad curve, RSA too short)." }, + { MBEDTLS_X509_BADCRL_BAD_MD, "The CRL is signed with an unacceptable hash." }, + { MBEDTLS_X509_BADCRL_BAD_PK, "The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA)." }, + { MBEDTLS_X509_BADCRL_BAD_KEY, "The CRL is signed with an unacceptable key (eg bad curve, RSA too short)." }, + { 0, NULL } +}; + +int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix, + uint32_t flags ) +{ + int ret; + const struct x509_crt_verify_string *cur; + char *p = buf; + size_t n = size; + + for( cur = x509_crt_verify_strings; cur->string != NULL ; cur++ ) + { + if( ( flags & cur->code ) == 0 ) + continue; + + ret = mbedtls_snprintf( p, n, "%s%s\n", prefix, cur->string ); + MBEDTLS_X509_SAFE_SNPRINTF; + flags ^= cur->code; + } + + if( flags != 0 ) + { + ret = mbedtls_snprintf( p, n, "%sUnknown reason " + "(this should not happen)\n", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + } + + return( (int) ( size - n ) ); +} + +#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) +int mbedtls_x509_crt_check_key_usage( const mbedtls_x509_crt *crt, + unsigned int usage ) +{ + unsigned int usage_must, usage_may; + unsigned int may_mask = MBEDTLS_X509_KU_ENCIPHER_ONLY + | MBEDTLS_X509_KU_DECIPHER_ONLY; + + if( ( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE ) == 0 ) + return( 0 ); + + usage_must = usage & ~may_mask; + + if( ( ( crt->key_usage & ~may_mask ) & usage_must ) != usage_must ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + usage_may = usage & may_mask; + + if( ( ( crt->key_usage & may_mask ) | usage_may ) != usage_may ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + return( 0 ); +} +#endif + +#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) +int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt, + const char *usage_oid, + size_t usage_len ) +{ + const mbedtls_x509_sequence *cur; + + /* Extension is not mandatory, absent means no restriction */ + if( ( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE ) == 0 ) + return( 0 ); + + /* + * Look for the requested usage (or wildcard ANY) in our list + */ + for( cur = &crt->ext_key_usage; cur != NULL; cur = cur->next ) + { + const mbedtls_x509_buf *cur_oid = &cur->buf; + + if( cur_oid->len == usage_len && + memcmp( cur_oid->p, usage_oid, usage_len ) == 0 ) + { + return( 0 ); + } + + if( MBEDTLS_OID_CMP( MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE, cur_oid ) == 0 ) + return( 0 ); + } + + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); +} +#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */ + +#if defined(MBEDTLS_X509_CRL_PARSE_C) +/* + * Return 1 if the certificate is revoked, or 0 otherwise. + */ +int mbedtls_x509_crt_is_revoked( const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl ) +{ + const mbedtls_x509_crl_entry *cur = &crl->entry; + + while( cur != NULL && cur->serial.len != 0 ) + { + if( crt->serial.len == cur->serial.len && + memcmp( crt->serial.p, cur->serial.p, crt->serial.len ) == 0 ) + { + if( mbedtls_x509_time_is_past( &cur->revocation_date ) ) + return( 1 ); + } + + cur = cur->next; + } + + return( 0 ); +} + +/* + * Check that the given certificate is not revoked according to the CRL. + * Skip validation is no CRL for the given CA is present. + */ +static int x509_crt_verifycrl( mbedtls_x509_crt *crt, mbedtls_x509_crt *ca, + mbedtls_x509_crl *crl_list, + const mbedtls_x509_crt_profile *profile ) +{ + int flags = 0; + unsigned char hash[MBEDTLS_MD_MAX_SIZE]; + const mbedtls_md_info_t *md_info; + + if( ca == NULL ) + return( flags ); + + while( crl_list != NULL ) + { + if( crl_list->version == 0 || + crl_list->issuer_raw.len != ca->subject_raw.len || + memcmp( crl_list->issuer_raw.p, ca->subject_raw.p, + crl_list->issuer_raw.len ) != 0 ) + { + crl_list = crl_list->next; + continue; + } + + /* + * Check if the CA is configured to sign CRLs + */ +#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) + if( mbedtls_x509_crt_check_key_usage( ca, MBEDTLS_X509_KU_CRL_SIGN ) != 0 ) + { + flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED; + break; + } +#endif + + /* + * Check if CRL is correctly signed by the trusted CA + */ + if( x509_profile_check_md_alg( profile, crl_list->sig_md ) != 0 ) + flags |= MBEDTLS_X509_BADCRL_BAD_MD; + + if( x509_profile_check_pk_alg( profile, crl_list->sig_pk ) != 0 ) + flags |= MBEDTLS_X509_BADCRL_BAD_PK; + + md_info = mbedtls_md_info_from_type( crl_list->sig_md ); + if( md_info == NULL ) + { + /* + * Cannot check 'unknown' hash + */ + flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED; + break; + } + + mbedtls_md( md_info, crl_list->tbs.p, crl_list->tbs.len, hash ); + + if( x509_profile_check_key( profile, crl_list->sig_pk, &ca->pk ) != 0 ) + flags |= MBEDTLS_X509_BADCERT_BAD_KEY; + + if( mbedtls_pk_verify_ext( crl_list->sig_pk, crl_list->sig_opts, &ca->pk, + crl_list->sig_md, hash, mbedtls_md_get_size( md_info ), + crl_list->sig.p, crl_list->sig.len ) != 0 ) + { + flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED; + break; + } + + /* + * Check for validity of CRL (Do not drop out) + */ + if( mbedtls_x509_time_is_past( &crl_list->next_update ) ) + flags |= MBEDTLS_X509_BADCRL_EXPIRED; + + if( mbedtls_x509_time_is_future( &crl_list->this_update ) ) + flags |= MBEDTLS_X509_BADCRL_FUTURE; + + /* + * Check if certificate is revoked + */ + if( mbedtls_x509_crt_is_revoked( crt, crl_list ) ) + { + flags |= MBEDTLS_X509_BADCERT_REVOKED; + break; + } + + crl_list = crl_list->next; + } + + return( flags ); +} +#endif /* MBEDTLS_X509_CRL_PARSE_C */ + +/* + * Like memcmp, but case-insensitive and always returns -1 if different + */ +static int x509_memcasecmp( const void *s1, const void *s2, size_t len ) +{ + size_t i; + unsigned char diff; + const unsigned char *n1 = s1, *n2 = s2; + + for( i = 0; i < len; i++ ) + { + diff = n1[i] ^ n2[i]; + + if( diff == 0 ) + continue; + + if( diff == 32 && + ( ( n1[i] >= 'a' && n1[i] <= 'z' ) || + ( n1[i] >= 'A' && n1[i] <= 'Z' ) ) ) + { + continue; + } + + return( -1 ); + } + + return( 0 ); +} + +/* + * Return 0 if name matches wildcard, -1 otherwise + */ +static int x509_check_wildcard( const char *cn, mbedtls_x509_buf *name ) +{ + size_t i; + size_t cn_idx = 0, cn_len = strlen( cn ); + + if( name->len < 3 || name->p[0] != '*' || name->p[1] != '.' ) + return( 0 ); + + for( i = 0; i < cn_len; ++i ) + { + if( cn[i] == '.' ) + { + cn_idx = i; + break; + } + } + + if( cn_idx == 0 ) + return( -1 ); + + if( cn_len - cn_idx == name->len - 1 && + x509_memcasecmp( name->p + 1, cn + cn_idx, name->len - 1 ) == 0 ) + { + return( 0 ); + } + + return( -1 ); +} + +/* + * Compare two X.509 strings, case-insensitive, and allowing for some encoding + * variations (but not all). + * + * Return 0 if equal, -1 otherwise. + */ +static int x509_string_cmp( const mbedtls_x509_buf *a, const mbedtls_x509_buf *b ) +{ + if( a->tag == b->tag && + a->len == b->len && + memcmp( a->p, b->p, b->len ) == 0 ) + { + return( 0 ); + } + + if( ( a->tag == MBEDTLS_ASN1_UTF8_STRING || a->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) && + ( b->tag == MBEDTLS_ASN1_UTF8_STRING || b->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) && + a->len == b->len && + x509_memcasecmp( a->p, b->p, b->len ) == 0 ) + { + return( 0 ); + } + + return( -1 ); +} + +/* + * Compare two X.509 Names (aka rdnSequence). + * + * See RFC 5280 section 7.1, though we don't implement the whole algorithm: + * we sometimes return unequal when the full algorithm would return equal, + * but never the other way. (In particular, we don't do Unicode normalisation + * or space folding.) + * + * Return 0 if equal, -1 otherwise. + */ +static int x509_name_cmp( const mbedtls_x509_name *a, const mbedtls_x509_name *b ) +{ + /* Avoid recursion, it might not be optimised by the compiler */ + while( a != NULL || b != NULL ) + { + if( a == NULL || b == NULL ) + return( -1 ); + + /* type */ + if( a->oid.tag != b->oid.tag || + a->oid.len != b->oid.len || + memcmp( a->oid.p, b->oid.p, b->oid.len ) != 0 ) + { + return( -1 ); + } + + /* value */ + if( x509_string_cmp( &a->val, &b->val ) != 0 ) + return( -1 ); + + /* structure of the list of sets */ + if( a->next_merged != b->next_merged ) + return( -1 ); + + a = a->next; + b = b->next; + } + + /* a == NULL == b */ + return( 0 ); +} + +/* + * Check if 'parent' is a suitable parent (signing CA) for 'child'. + * Return 0 if yes, -1 if not. + * + * top means parent is a locally-trusted certificate + * bottom means child is the end entity cert + */ +static int x509_crt_check_parent( const mbedtls_x509_crt *child, + const mbedtls_x509_crt *parent, + int top, int bottom ) +{ + int need_ca_bit; + + /* Parent must be the issuer */ + if( x509_name_cmp( &child->issuer, &parent->subject ) != 0 ) + return( -1 ); + + /* Parent must have the basicConstraints CA bit set as a general rule */ + need_ca_bit = 1; + + /* Exception: v1/v2 certificates that are locally trusted. */ + if( top && parent->version < 3 ) + need_ca_bit = 0; + + /* Exception: self-signed end-entity certs that are locally trusted. */ + if( top && bottom && + child->raw.len == parent->raw.len && + memcmp( child->raw.p, parent->raw.p, child->raw.len ) == 0 ) + { + need_ca_bit = 0; + } + + if( need_ca_bit && ! parent->ca_istrue ) + return( -1 ); + +#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) + if( need_ca_bit && + mbedtls_x509_crt_check_key_usage( parent, MBEDTLS_X509_KU_KEY_CERT_SIGN ) != 0 ) + { + return( -1 ); + } +#endif + + return( 0 ); +} + +static int x509_crt_verify_top( + mbedtls_x509_crt *child, mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const mbedtls_x509_crt_profile *profile, + int path_cnt, int self_cnt, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ) +{ + int ret; + uint32_t ca_flags = 0; + int check_path_cnt; + unsigned char hash[MBEDTLS_MD_MAX_SIZE]; + const mbedtls_md_info_t *md_info; + + if( mbedtls_x509_time_is_past( &child->valid_to ) ) + *flags |= MBEDTLS_X509_BADCERT_EXPIRED; + + if( mbedtls_x509_time_is_future( &child->valid_from ) ) + *flags |= MBEDTLS_X509_BADCERT_FUTURE; + + if( x509_profile_check_md_alg( profile, child->sig_md ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_MD; + + if( x509_profile_check_pk_alg( profile, child->sig_pk ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_PK; + + /* + * Child is the top of the chain. Check against the trust_ca list. + */ + *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED; + + md_info = mbedtls_md_info_from_type( child->sig_md ); + if( md_info == NULL ) + { + /* + * Cannot check 'unknown', no need to try any CA + */ + trust_ca = NULL; + } + else + mbedtls_md( md_info, child->tbs.p, child->tbs.len, hash ); + + for( /* trust_ca */ ; trust_ca != NULL; trust_ca = trust_ca->next ) + { + if( x509_crt_check_parent( child, trust_ca, 1, path_cnt == 0 ) != 0 ) + continue; + + check_path_cnt = path_cnt + 1; + + /* + * Reduce check_path_cnt to check against if top of the chain is + * the same as the trusted CA + */ + if( child->subject_raw.len == trust_ca->subject_raw.len && + memcmp( child->subject_raw.p, trust_ca->subject_raw.p, + child->issuer_raw.len ) == 0 ) + { + check_path_cnt--; + } + + /* Self signed certificates do not count towards the limit */ + if( trust_ca->max_pathlen > 0 && + trust_ca->max_pathlen < check_path_cnt - self_cnt ) + { + continue; + } + + if( mbedtls_x509_time_is_past( &trust_ca->valid_to ) ) + { + continue; + } + + if( mbedtls_x509_time_is_future( &trust_ca->valid_from ) ) + { + continue; + } + + if( mbedtls_pk_verify_ext( child->sig_pk, child->sig_opts, &trust_ca->pk, + child->sig_md, hash, mbedtls_md_get_size( md_info ), + child->sig.p, child->sig.len ) != 0 ) + { + continue; + } + + /* + * Top of chain is signed by a trusted CA + */ + *flags &= ~MBEDTLS_X509_BADCERT_NOT_TRUSTED; + + if( x509_profile_check_key( profile, child->sig_pk, &trust_ca->pk ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_KEY; + + break; + } + + /* + * If top of chain is not the same as the trusted CA send a verify request + * to the callback for any issues with validity and CRL presence for the + * trusted CA certificate. + */ + if( trust_ca != NULL && + ( child->subject_raw.len != trust_ca->subject_raw.len || + memcmp( child->subject_raw.p, trust_ca->subject_raw.p, + child->issuer_raw.len ) != 0 ) ) + { +#if defined(MBEDTLS_X509_CRL_PARSE_C) + /* Check trusted CA's CRL for the chain's top crt */ + *flags |= x509_crt_verifycrl( child, trust_ca, ca_crl, profile ); +#else + ((void) ca_crl); +#endif + + if( NULL != f_vrfy ) + { + if( ( ret = f_vrfy( p_vrfy, trust_ca, path_cnt + 1, + &ca_flags ) ) != 0 ) + { + return( ret ); + } + } + } + + /* Call callback on top cert */ + if( NULL != f_vrfy ) + { + if( ( ret = f_vrfy( p_vrfy, child, path_cnt, flags ) ) != 0 ) + return( ret ); + } + + *flags |= ca_flags; + + return( 0 ); +} + +static int x509_crt_verify_child( + mbedtls_x509_crt *child, mbedtls_x509_crt *parent, + mbedtls_x509_crt *trust_ca, mbedtls_x509_crl *ca_crl, + const mbedtls_x509_crt_profile *profile, + int path_cnt, int self_cnt, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ) +{ + int ret; + uint32_t parent_flags = 0; + unsigned char hash[MBEDTLS_MD_MAX_SIZE]; + mbedtls_x509_crt *grandparent; + const mbedtls_md_info_t *md_info; + + /* Counting intermediate self signed certificates */ + if( ( path_cnt != 0 ) && x509_name_cmp( &child->issuer, &child->subject ) == 0 ) + self_cnt++; + + /* path_cnt is 0 for the first intermediate CA */ + if( 1 + path_cnt > MBEDTLS_X509_MAX_INTERMEDIATE_CA ) + { + *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED; + return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ); + } + + if( mbedtls_x509_time_is_past( &child->valid_to ) ) + *flags |= MBEDTLS_X509_BADCERT_EXPIRED; + + if( mbedtls_x509_time_is_future( &child->valid_from ) ) + *flags |= MBEDTLS_X509_BADCERT_FUTURE; + + if( x509_profile_check_md_alg( profile, child->sig_md ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_MD; + + if( x509_profile_check_pk_alg( profile, child->sig_pk ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_PK; + + md_info = mbedtls_md_info_from_type( child->sig_md ); + if( md_info == NULL ) + { + /* + * Cannot check 'unknown' hash + */ + *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED; + } + else + { + mbedtls_md( md_info, child->tbs.p, child->tbs.len, hash ); + + if( x509_profile_check_key( profile, child->sig_pk, &parent->pk ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_KEY; + + if( mbedtls_pk_verify_ext( child->sig_pk, child->sig_opts, &parent->pk, + child->sig_md, hash, mbedtls_md_get_size( md_info ), + child->sig.p, child->sig.len ) != 0 ) + { + *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED; + } + } + +#if defined(MBEDTLS_X509_CRL_PARSE_C) + /* Check trusted CA's CRL for the given crt */ + *flags |= x509_crt_verifycrl(child, parent, ca_crl, profile ); +#endif + + /* Look for a grandparent in trusted CAs */ + for( grandparent = trust_ca; + grandparent != NULL; + grandparent = grandparent->next ) + { + if( x509_crt_check_parent( parent, grandparent, + 0, path_cnt == 0 ) == 0 ) + break; + } + + if( grandparent != NULL ) + { + ret = x509_crt_verify_top( parent, grandparent, ca_crl, profile, + path_cnt + 1, self_cnt, &parent_flags, f_vrfy, p_vrfy ); + if( ret != 0 ) + return( ret ); + } + else + { + /* Look for a grandparent upwards the chain */ + for( grandparent = parent->next; + grandparent != NULL; + grandparent = grandparent->next ) + { + /* +2 because the current step is not yet accounted for + * and because max_pathlen is one higher than it should be. + * Also self signed certificates do not count to the limit. */ + if( grandparent->max_pathlen > 0 && + grandparent->max_pathlen < 2 + path_cnt - self_cnt ) + { + continue; + } + + if( x509_crt_check_parent( parent, grandparent, + 0, path_cnt == 0 ) == 0 ) + break; + } + + /* Is our parent part of the chain or at the top? */ + if( grandparent != NULL ) + { + ret = x509_crt_verify_child( parent, grandparent, trust_ca, ca_crl, + profile, path_cnt + 1, self_cnt, &parent_flags, + f_vrfy, p_vrfy ); + if( ret != 0 ) + return( ret ); + } + else + { + ret = x509_crt_verify_top( parent, trust_ca, ca_crl, profile, + path_cnt + 1, self_cnt, &parent_flags, + f_vrfy, p_vrfy ); + if( ret != 0 ) + return( ret ); + } + } + + /* child is verified to be a child of the parent, call verify callback */ + if( NULL != f_vrfy ) + if( ( ret = f_vrfy( p_vrfy, child, path_cnt, flags ) ) != 0 ) + return( ret ); + + *flags |= parent_flags; + + return( 0 ); +} + +/* + * Verify the certificate validity + */ +int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt, + mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ) +{ + return( mbedtls_x509_crt_verify_with_profile( crt, trust_ca, ca_crl, + &mbedtls_x509_crt_profile_default, cn, flags, f_vrfy, p_vrfy ) ); +} + + +/* + * Verify the certificate validity, with profile + */ +int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt, + mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const mbedtls_x509_crt_profile *profile, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy ) +{ + size_t cn_len; + int ret; + int pathlen = 0, selfsigned = 0; + mbedtls_x509_crt *parent; + mbedtls_x509_name *name; + mbedtls_x509_sequence *cur = NULL; + mbedtls_pk_type_t pk_type; + + if( profile == NULL ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + *flags = 0; + + if( cn != NULL ) + { + name = &crt->subject; + cn_len = strlen( cn ); + + if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME ) + { + cur = &crt->subject_alt_names; + + while( cur != NULL ) + { + if( cur->buf.len == cn_len && + x509_memcasecmp( cn, cur->buf.p, cn_len ) == 0 ) + break; + + if( cur->buf.len > 2 && + memcmp( cur->buf.p, "*.", 2 ) == 0 && + x509_check_wildcard( cn, &cur->buf ) == 0 ) + { + break; + } + + cur = cur->next; + } + + if( cur == NULL ) + *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH; + } + else + { + while( name != NULL ) + { + if( MBEDTLS_OID_CMP( MBEDTLS_OID_AT_CN, &name->oid ) == 0 ) + { + if( name->val.len == cn_len && + x509_memcasecmp( name->val.p, cn, cn_len ) == 0 ) + break; + + if( name->val.len > 2 && + memcmp( name->val.p, "*.", 2 ) == 0 && + x509_check_wildcard( cn, &name->val ) == 0 ) + break; + } + + name = name->next; + } + + if( name == NULL ) + *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH; + } + } + + /* Check the type and size of the key */ + pk_type = mbedtls_pk_get_type( &crt->pk ); + + if( x509_profile_check_pk_alg( profile, pk_type ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_PK; + + if( x509_profile_check_key( profile, pk_type, &crt->pk ) != 0 ) + *flags |= MBEDTLS_X509_BADCERT_BAD_KEY; + + /* Look for a parent in trusted CAs */ + for( parent = trust_ca; parent != NULL; parent = parent->next ) + { + if( x509_crt_check_parent( crt, parent, 0, pathlen == 0 ) == 0 ) + break; + } + + if( parent != NULL ) + { + ret = x509_crt_verify_top( crt, parent, ca_crl, profile, + pathlen, selfsigned, flags, f_vrfy, p_vrfy ); + if( ret != 0 ) + return( ret ); + } + else + { + /* Look for a parent upwards the chain */ + for( parent = crt->next; parent != NULL; parent = parent->next ) + if( x509_crt_check_parent( crt, parent, 0, pathlen == 0 ) == 0 ) + break; + + /* Are we part of the chain or at the top? */ + if( parent != NULL ) + { + ret = x509_crt_verify_child( crt, parent, trust_ca, ca_crl, profile, + pathlen, selfsigned, flags, f_vrfy, p_vrfy ); + if( ret != 0 ) + return( ret ); + } + else + { + ret = x509_crt_verify_top( crt, trust_ca, ca_crl, profile, + pathlen, selfsigned, flags, f_vrfy, p_vrfy ); + if( ret != 0 ) + return( ret ); + } + } + + if( *flags != 0 ) + return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ); + + return( 0 ); +} + +/* + * Initialize a certificate chain + */ +void mbedtls_x509_crt_init( mbedtls_x509_crt *crt ) +{ + memset( crt, 0, sizeof(mbedtls_x509_crt) ); +} + +/* + * Unallocate all certificate data + */ +void mbedtls_x509_crt_free( mbedtls_x509_crt *crt ) +{ + mbedtls_x509_crt *cert_cur = crt; + mbedtls_x509_crt *cert_prv; + mbedtls_x509_name *name_cur; + mbedtls_x509_name *name_prv; + mbedtls_x509_sequence *seq_cur; + mbedtls_x509_sequence *seq_prv; + + if( crt == NULL ) + return; + + do + { + mbedtls_pk_free( &cert_cur->pk ); + +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) + mbedtls_free( cert_cur->sig_opts ); +#endif + + name_cur = cert_cur->issuer.next; + while( name_cur != NULL ) + { + name_prv = name_cur; + name_cur = name_cur->next; + mbedtls_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); + mbedtls_free( name_prv ); + } + + name_cur = cert_cur->subject.next; + while( name_cur != NULL ) + { + name_prv = name_cur; + name_cur = name_cur->next; + mbedtls_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); + mbedtls_free( name_prv ); + } + + seq_cur = cert_cur->ext_key_usage.next; + while( seq_cur != NULL ) + { + seq_prv = seq_cur; + seq_cur = seq_cur->next; + mbedtls_zeroize( seq_prv, sizeof( mbedtls_x509_sequence ) ); + mbedtls_free( seq_prv ); + } + + seq_cur = cert_cur->subject_alt_names.next; + while( seq_cur != NULL ) + { + seq_prv = seq_cur; + seq_cur = seq_cur->next; + mbedtls_zeroize( seq_prv, sizeof( mbedtls_x509_sequence ) ); + mbedtls_free( seq_prv ); + } + + if( cert_cur->raw.p != NULL ) + { + mbedtls_zeroize( cert_cur->raw.p, cert_cur->raw.len ); + mbedtls_free( cert_cur->raw.p ); + } + + cert_cur = cert_cur->next; + } + while( cert_cur != NULL ); + + cert_cur = crt; + do + { + cert_prv = cert_cur; + cert_cur = cert_cur->next; + + mbedtls_zeroize( cert_prv, sizeof( mbedtls_x509_crt ) ); + if( cert_prv != crt ) + mbedtls_free( cert_prv ); + } + while( cert_cur != NULL ); +} + +#endif /* MBEDTLS_X509_CRT_PARSE_C */ diff --git a/mbedtls/x509_csr.c b/mbedtls/x509_csr.c new file mode 100644 index 0000000..603d06b --- /dev/null +++ b/mbedtls/x509_csr.c @@ -0,0 +1,423 @@ +/* + * X.509 Certificate Signing Request (CSR) parsing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The ITU-T X.509 standard defines a certificate format for PKI. + * + * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) + * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) + * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) + * + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf + * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_X509_CSR_PARSE_C) + +#include "mbedtls/x509_csr.h" +#include "mbedtls/oid.h" + +#include + +#if defined(MBEDTLS_PEM_PARSE_C) +#include "mbedtls/pem.h" +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#include +#define mbedtls_free free +#define mbedtls_calloc calloc +#define mbedtls_snprintf snprintf +#endif + +#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32) +#include +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * Version ::= INTEGER { v1(0) } + */ +static int x509_csr_get_version( unsigned char **p, + const unsigned char *end, + int *ver ) +{ + int ret; + + if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 ) + { + if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) + { + *ver = 0; + return( 0 ); + } + + return( MBEDTLS_ERR_X509_INVALID_VERSION + ret ); + } + + return( 0 ); +} + +/* + * Parse a CSR in DER format + */ +int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr, + const unsigned char *buf, size_t buflen ) +{ + int ret; + size_t len; + unsigned char *p, *end; + mbedtls_x509_buf sig_params; + + memset( &sig_params, 0, sizeof( mbedtls_x509_buf ) ); + + /* + * Check for valid input + */ + if( csr == NULL || buf == NULL || buflen == 0 ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + mbedtls_x509_csr_init( csr ); + + /* + * first copy the raw DER data + */ + p = mbedtls_calloc( 1, len = buflen ); + + if( p == NULL ) + return( MBEDTLS_ERR_X509_ALLOC_FAILED ); + + memcpy( p, buf, buflen ); + + csr->raw.p = p; + csr->raw.len = len; + end = p + len; + + /* + * CertificationRequest ::= SEQUENCE { + * certificationRequestInfo CertificationRequestInfo, + * signatureAlgorithm AlgorithmIdentifier, + * signature BIT STRING + * } + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT ); + } + + if( len != (size_t) ( end - p ) ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + /* + * CertificationRequestInfo ::= SEQUENCE { + */ + csr->cri.p = p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + end = p + len; + csr->cri.len = end - csr->cri.p; + + /* + * Version ::= INTEGER { v1(0) } + */ + if( ( ret = x509_csr_get_version( &p, end, &csr->version ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( ret ); + } + + csr->version++; + + if( csr->version != 1 ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_UNKNOWN_VERSION ); + } + + /* + * subject Name + */ + csr->subject_raw.p = p; + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + if( ( ret = mbedtls_x509_get_name( &p, p + len, &csr->subject ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( ret ); + } + + csr->subject_raw.len = p - csr->subject_raw.p; + + /* + * subjectPKInfo SubjectPublicKeyInfo + */ + if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &csr->pk ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( ret ); + } + + /* + * attributes [0] Attributes + * + * The list of possible attributes is open-ended, though RFC 2985 + * (PKCS#9) defines a few in section 5.4. We currently don't support any, + * so we just ignore them. This is a safe thing to do as the worst thing + * that could happen is that we issue a certificate that does not match + * the requester's expectations - this cannot cause a violation of our + * signature policies. + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_CONTEXT_SPECIFIC ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); + } + + p += len; + + end = csr->raw.p + csr->raw.len; + + /* + * signatureAlgorithm AlgorithmIdentifier, + * signature BIT STRING + */ + if( ( ret = mbedtls_x509_get_alg( &p, end, &csr->sig_oid, &sig_params ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( ret ); + } + + if( ( ret = mbedtls_x509_get_sig_alg( &csr->sig_oid, &sig_params, + &csr->sig_md, &csr->sig_pk, + &csr->sig_opts ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG ); + } + + if( ( ret = mbedtls_x509_get_sig( &p, end, &csr->sig ) ) != 0 ) + { + mbedtls_x509_csr_free( csr ); + return( ret ); + } + + if( p != end ) + { + mbedtls_x509_csr_free( csr ); + return( MBEDTLS_ERR_X509_INVALID_FORMAT + + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); + } + + return( 0 ); +} + +/* + * Parse a CSR, allowing for PEM or raw DER encoding + */ +int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen ) +{ + int ret; +#if defined(MBEDTLS_PEM_PARSE_C) + size_t use_len; + mbedtls_pem_context pem; +#endif + + /* + * Check for valid input + */ + if( csr == NULL || buf == NULL || buflen == 0 ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + +#if defined(MBEDTLS_PEM_PARSE_C) + mbedtls_pem_init( &pem ); + + /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ + if( buf[buflen - 1] != '\0' ) + ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; + else + ret = mbedtls_pem_read_buffer( &pem, + "-----BEGIN CERTIFICATE REQUEST-----", + "-----END CERTIFICATE REQUEST-----", + buf, NULL, 0, &use_len ); + + if( ret == 0 ) + { + /* + * Was PEM encoded, parse the result + */ + if( ( ret = mbedtls_x509_csr_parse_der( csr, pem.buf, pem.buflen ) ) != 0 ) + return( ret ); + + mbedtls_pem_free( &pem ); + return( 0 ); + } + else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) + { + mbedtls_pem_free( &pem ); + return( ret ); + } + else +#endif /* MBEDTLS_PEM_PARSE_C */ + return( mbedtls_x509_csr_parse_der( csr, buf, buflen ) ); +} + +#if defined(MBEDTLS_FS_IO) +/* + * Load a CSR into the structure + */ +int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path ) +{ + int ret; + size_t n; + unsigned char *buf; + + if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) + return( ret ); + + ret = mbedtls_x509_csr_parse( csr, buf, n ); + + mbedtls_zeroize( buf, n ); + mbedtls_free( buf ); + + return( ret ); +} +#endif /* MBEDTLS_FS_IO */ + +#define BEFORE_COLON 14 +#define BC "14" +/* + * Return an informational string about the CSR. + */ +int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix, + const mbedtls_x509_csr *csr ) +{ + int ret; + size_t n; + char *p; + char key_size_str[BEFORE_COLON]; + + p = buf; + n = size; + + ret = mbedtls_snprintf( p, n, "%sCSR version : %d", + prefix, csr->version ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%ssubject name : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + ret = mbedtls_x509_dn_gets( p, n, &csr->subject ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix ); + MBEDTLS_X509_SAFE_SNPRINTF; + + ret = mbedtls_x509_sig_alg_gets( p, n, &csr->sig_oid, csr->sig_pk, csr->sig_md, + csr->sig_opts ); + MBEDTLS_X509_SAFE_SNPRINTF; + + if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON, + mbedtls_pk_get_name( &csr->pk ) ) ) != 0 ) + { + return( ret ); + } + + ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits\n", prefix, key_size_str, + (int) mbedtls_pk_get_bitlen( &csr->pk ) ); + MBEDTLS_X509_SAFE_SNPRINTF; + + return( (int) ( size - n ) ); +} + +/* + * Initialize a CSR + */ +void mbedtls_x509_csr_init( mbedtls_x509_csr *csr ) +{ + memset( csr, 0, sizeof(mbedtls_x509_csr) ); +} + +/* + * Unallocate all CSR data + */ +void mbedtls_x509_csr_free( mbedtls_x509_csr *csr ) +{ + mbedtls_x509_name *name_cur; + mbedtls_x509_name *name_prv; + + if( csr == NULL ) + return; + + mbedtls_pk_free( &csr->pk ); + +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) + mbedtls_free( csr->sig_opts ); +#endif + + name_cur = csr->subject.next; + while( name_cur != NULL ) + { + name_prv = name_cur; + name_cur = name_cur->next; + mbedtls_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); + mbedtls_free( name_prv ); + } + + if( csr->raw.p != NULL ) + { + mbedtls_zeroize( csr->raw.p, csr->raw.len ); + mbedtls_free( csr->raw.p ); + } + + mbedtls_zeroize( csr, sizeof( mbedtls_x509_csr ) ); +} + +#endif /* MBEDTLS_X509_CSR_PARSE_C */ diff --git a/mbedtls/x509write_crt.c b/mbedtls/x509write_crt.c new file mode 100644 index 0000000..d1d9a22 --- /dev/null +++ b/mbedtls/x509write_crt.c @@ -0,0 +1,459 @@ +/* + * X.509 certificate writing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * References: + * - certificates: RFC 5280, updated by RFC 6818 + * - CSRs: PKCS#10 v1.7 aka RFC 2986 + * - attributes: PKCS#9 v2.0 aka RFC 2985 + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_X509_CRT_WRITE_C) + +#include "mbedtls/x509_crt.h" +#include "mbedtls/oid.h" +#include "mbedtls/asn1write.h" +#include "mbedtls/sha1.h" + +#include + +#if defined(MBEDTLS_PEM_WRITE_C) +#include "mbedtls/pem.h" +#endif /* MBEDTLS_PEM_WRITE_C */ + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx ) +{ + memset( ctx, 0, sizeof(mbedtls_x509write_cert) ); + + mbedtls_mpi_init( &ctx->serial ); + ctx->version = MBEDTLS_X509_CRT_VERSION_3; +} + +void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx ) +{ + mbedtls_mpi_free( &ctx->serial ); + + mbedtls_asn1_free_named_data_list( &ctx->subject ); + mbedtls_asn1_free_named_data_list( &ctx->issuer ); + mbedtls_asn1_free_named_data_list( &ctx->extensions ); + + mbedtls_zeroize( ctx, sizeof(mbedtls_x509write_cert) ); +} + +void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version ) +{ + ctx->version = version; +} + +void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg ) +{ + ctx->md_alg = md_alg; +} + +void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ) +{ + ctx->subject_key = key; +} + +void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ) +{ + ctx->issuer_key = key; +} + +int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx, + const char *subject_name ) +{ + return mbedtls_x509_string_to_names( &ctx->subject, subject_name ); +} + +int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx, + const char *issuer_name ) +{ + return mbedtls_x509_string_to_names( &ctx->issuer, issuer_name ); +} + +int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial ) +{ + int ret; + + if( ( ret = mbedtls_mpi_copy( &ctx->serial, serial ) ) != 0 ) + return( ret ); + + return( 0 ); +} + +int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before, + const char *not_after ) +{ + if( strlen( not_before ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 || + strlen( not_after ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 ) + { + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + } + strncpy( ctx->not_before, not_before, MBEDTLS_X509_RFC5280_UTC_TIME_LEN ); + strncpy( ctx->not_after , not_after , MBEDTLS_X509_RFC5280_UTC_TIME_LEN ); + ctx->not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z'; + ctx->not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z'; + + return( 0 ); +} + +int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx, + const char *oid, size_t oid_len, + int critical, + const unsigned char *val, size_t val_len ) +{ + return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len, + critical, val, val_len ); +} + +int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx, + int is_ca, int max_pathlen ) +{ + int ret; + unsigned char buf[9]; + unsigned char *c = buf + sizeof(buf); + size_t len = 0; + + memset( buf, 0, sizeof(buf) ); + + if( is_ca && max_pathlen > 127 ) + return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); + + if( is_ca ) + { + if( max_pathlen >= 0 ) + { + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, max_pathlen ) ); + } + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( &c, buf, 1 ) ); + } + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_BASIC_CONSTRAINTS, + MBEDTLS_OID_SIZE( MBEDTLS_OID_BASIC_CONSTRAINTS ), + 0, buf + sizeof(buf) - len, len ); +} + +#if defined(MBEDTLS_SHA1_C) +int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx ) +{ + int ret; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */ + unsigned char *c = buf + sizeof(buf); + size_t len = 0; + + memset( buf, 0, sizeof(buf) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->subject_key ) ); + + mbedtls_sha1( buf + sizeof(buf) - len, len, buf + sizeof(buf) - 20 ); + c = buf + sizeof(buf) - 20; + len = 20; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_OCTET_STRING ) ); + + return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER, + MBEDTLS_OID_SIZE( MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER ), + 0, buf + sizeof(buf) - len, len ); +} + +int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx ) +{ + int ret; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */ + unsigned char *c = buf + sizeof(buf); + size_t len = 0; + + memset( buf, 0, sizeof(buf) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->issuer_key ) ); + + mbedtls_sha1( buf + sizeof(buf) - len, len, buf + sizeof(buf) - 20 ); + c = buf + sizeof(buf) - 20; + len = 20; + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0 ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER, + MBEDTLS_OID_SIZE( MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER ), + 0, buf + sizeof(buf) - len, len ); +} +#endif /* MBEDTLS_SHA1_C */ + +int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx, + unsigned int key_usage ) +{ + unsigned char buf[4], ku; + unsigned char *c; + int ret; + + /* We currently only support 7 bits, from 0x80 to 0x02 */ + if( ( key_usage & ~0xfe ) != 0 ) + return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE ); + + c = buf + 4; + ku = (unsigned char) key_usage; + + if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &ku, 7 ) ) != 4 ) + return( ret ); + + ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_KEY_USAGE, + MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ), + 1, buf, 4 ); + if( ret != 0 ) + return( ret ); + + return( 0 ); +} + +int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx, + unsigned char ns_cert_type ) +{ + unsigned char buf[4]; + unsigned char *c; + int ret; + + c = buf + 4; + + if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &ns_cert_type, 8 ) ) != 4 ) + return( ret ); + + ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE, + MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ), + 0, buf, 4 ); + if( ret != 0 ) + return( ret ); + + return( 0 ); +} + +static int x509_write_time( unsigned char **p, unsigned char *start, + const char *time, size_t size ) +{ + int ret; + size_t len = 0; + + /* + * write MBEDTLS_ASN1_UTC_TIME if year < 2050 (2 bytes shorter) + */ + if( time[0] == '2' && time[1] == '0' && time [2] < '5' ) + { + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, + (const unsigned char *) time + 2, + size - 2 ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_UTC_TIME ) ); + } + else + { + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, + (const unsigned char *) time, + size ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_GENERALIZED_TIME ) ); + } + + return( (int) len ); +} + +int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + const char *sig_oid; + size_t sig_oid_len = 0; + unsigned char *c, *c2; + unsigned char hash[64]; + unsigned char sig[MBEDTLS_MPI_MAX_SIZE]; + unsigned char tmp_buf[2048]; + size_t sub_len = 0, pub_len = 0, sig_and_oid_len = 0, sig_len; + size_t len = 0; + mbedtls_pk_type_t pk_alg; + + /* + * Prepare data to be signed in tmp_buf + */ + c = tmp_buf + sizeof( tmp_buf ); + + /* Signature algorithm needed in TBS, and later for actual signature */ + pk_alg = mbedtls_pk_get_type( ctx->issuer_key ); + if( pk_alg == MBEDTLS_PK_ECKEY ) + pk_alg = MBEDTLS_PK_ECDSA; + + if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg, + &sig_oid, &sig_oid_len ) ) != 0 ) + { + return( ret ); + } + + /* + * Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension + */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | + MBEDTLS_ASN1_CONSTRUCTED | 3 ) ); + + /* + * SubjectPublicKeyInfo + */ + MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->subject_key, + tmp_buf, c - tmp_buf ) ); + c -= pub_len; + len += pub_len; + + /* + * Subject ::= Name + */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) ); + + /* + * Validity ::= SEQUENCE { + * notBefore Time, + * notAfter Time } + */ + sub_len = 0; + + MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_after, + MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) ); + + MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_before, + MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) ); + + len += sub_len; + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + /* + * Issuer ::= Name + */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->issuer ) ); + + /* + * Signature ::= AlgorithmIdentifier + */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, tmp_buf, + sig_oid, strlen( sig_oid ), 0 ) ); + + /* + * Serial ::= INTEGER + */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, tmp_buf, &ctx->serial ) ); + + /* + * Version ::= INTEGER { v1(0), v2(1), v3(2) } + */ + sub_len = 0; + MBEDTLS_ASN1_CHK_ADD( sub_len, mbedtls_asn1_write_int( &c, tmp_buf, ctx->version ) ); + len += sub_len; + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | + MBEDTLS_ASN1_CONSTRUCTED | 0 ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + /* + * Make signature + */ + mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, len, hash ); + + if( ( ret = mbedtls_pk_sign( ctx->issuer_key, ctx->md_alg, hash, 0, sig, &sig_len, + f_rng, p_rng ) ) != 0 ) + { + return( ret ); + } + + /* + * Write data to output buffer + */ + c2 = buf + size; + MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf, + sig_oid, sig_oid_len, sig, sig_len ) ); + + if( len > (size_t)( c2 - buf ) ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + c2 -= len; + memcpy( c2, c, len ); + + len += sig_and_oid_len; + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return( (int) len ); +} + +#define PEM_BEGIN_CRT "-----BEGIN CERTIFICATE-----\n" +#define PEM_END_CRT "-----END CERTIFICATE-----\n" + +#if defined(MBEDTLS_PEM_WRITE_C) +int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *crt, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + unsigned char output_buf[4096]; + size_t olen = 0; + + if( ( ret = mbedtls_x509write_crt_der( crt, output_buf, sizeof(output_buf), + f_rng, p_rng ) ) < 0 ) + { + return( ret ); + } + + if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CRT, PEM_END_CRT, + output_buf + sizeof(output_buf) - ret, + ret, buf, size, &olen ) ) != 0 ) + { + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_PEM_WRITE_C */ + +#endif /* MBEDTLS_X509_CRT_WRITE_C */ diff --git a/mbedtls/x509write_csr.c b/mbedtls/x509write_csr.c new file mode 100644 index 0000000..8fd856b --- /dev/null +++ b/mbedtls/x509write_csr.c @@ -0,0 +1,259 @@ +/* + * X.509 Certificate Signing Request writing + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * References: + * - CSRs: PKCS#10 v1.7 aka RFC 2986 + * - attributes: PKCS#9 v2.0 aka RFC 2985 + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_X509_CSR_WRITE_C) + +#include "mbedtls/x509_csr.h" +#include "mbedtls/oid.h" +#include "mbedtls/asn1write.h" + +#include +#include + +#if defined(MBEDTLS_PEM_WRITE_C) +#include "mbedtls/pem.h" +#endif + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx ) +{ + memset( ctx, 0, sizeof(mbedtls_x509write_csr) ); +} + +void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx ) +{ + mbedtls_asn1_free_named_data_list( &ctx->subject ); + mbedtls_asn1_free_named_data_list( &ctx->extensions ); + + mbedtls_zeroize( ctx, sizeof(mbedtls_x509write_csr) ); +} + +void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg ) +{ + ctx->md_alg = md_alg; +} + +void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key ) +{ + ctx->key = key; +} + +int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx, + const char *subject_name ) +{ + return mbedtls_x509_string_to_names( &ctx->subject, subject_name ); +} + +int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx, + const char *oid, size_t oid_len, + const unsigned char *val, size_t val_len ) +{ + return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len, + 0, val, val_len ); +} + +int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage ) +{ + unsigned char buf[4]; + unsigned char *c; + int ret; + + c = buf + 4; + + if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &key_usage, 7 ) ) != 4 ) + return( ret ); + + ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_KEY_USAGE, + MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ), + buf, 4 ); + if( ret != 0 ) + return( ret ); + + return( 0 ); +} + +int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx, + unsigned char ns_cert_type ) +{ + unsigned char buf[4]; + unsigned char *c; + int ret; + + c = buf + 4; + + if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &ns_cert_type, 8 ) ) != 4 ) + return( ret ); + + ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE, + MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ), + buf, 4 ); + if( ret != 0 ) + return( ret ); + + return( 0 ); +} + +int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + const char *sig_oid; + size_t sig_oid_len = 0; + unsigned char *c, *c2; + unsigned char hash[64]; + unsigned char sig[MBEDTLS_MPI_MAX_SIZE]; + unsigned char tmp_buf[2048]; + size_t pub_len = 0, sig_and_oid_len = 0, sig_len; + size_t len = 0; + mbedtls_pk_type_t pk_alg; + + /* + * Prepare data to be signed in tmp_buf + */ + c = tmp_buf + sizeof( tmp_buf ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) ); + + if( len ) + { + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SET ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( &c, tmp_buf, MBEDTLS_OID_PKCS9_CSR_EXT_REQ, + MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_CSR_EXT_REQ ) ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + } + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_CONTEXT_SPECIFIC ) ); + + MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->key, + tmp_buf, c - tmp_buf ) ); + c -= pub_len; + len += pub_len; + + /* + * Subject ::= Name + */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) ); + + /* + * Version ::= INTEGER { v1(0), v2(1), v3(2) } + */ + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, tmp_buf, 0 ) ); + + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + /* + * Prepare signature + */ + mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, len, hash ); + + pk_alg = mbedtls_pk_get_type( ctx->key ); + if( pk_alg == MBEDTLS_PK_ECKEY ) + pk_alg = MBEDTLS_PK_ECDSA; + + if( ( ret = mbedtls_pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len, + f_rng, p_rng ) ) != 0 || + ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg, + &sig_oid, &sig_oid_len ) ) != 0 ) + { + return( ret ); + } + + /* + * Write data to output buffer + */ + c2 = buf + size; + MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf, + sig_oid, sig_oid_len, sig, sig_len ) ); + + if( len > (size_t)( c2 - buf ) ) + return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + + c2 -= len; + memcpy( c2, c, len ); + + len += sig_and_oid_len; + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) ); + MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE ) ); + + return( (int) len ); +} + +#define PEM_BEGIN_CSR "-----BEGIN CERTIFICATE REQUEST-----\n" +#define PEM_END_CSR "-----END CERTIFICATE REQUEST-----\n" + +#if defined(MBEDTLS_PEM_WRITE_C) +int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng ) +{ + int ret; + unsigned char output_buf[4096]; + size_t olen = 0; + + if( ( ret = mbedtls_x509write_csr_der( ctx, output_buf, sizeof(output_buf), + f_rng, p_rng ) ) < 0 ) + { + return( ret ); + } + + if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CSR, PEM_END_CSR, + output_buf + sizeof(output_buf) - ret, + ret, buf, size, &olen ) ) != 0 ) + { + return( ret ); + } + + return( 0 ); +} +#endif /* MBEDTLS_PEM_WRITE_C */ + +#endif /* MBEDTLS_X509_CSR_WRITE_C */ diff --git a/mbedtls/xtea.c b/mbedtls/xtea.c new file mode 100644 index 0000000..fe0a350 --- /dev/null +++ b/mbedtls/xtea.c @@ -0,0 +1,281 @@ +/* + * An 32-bit implementation of the XTEA algorithm + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_XTEA_C) + +#include "mbedtls/xtea.h" + +#include + +#if defined(MBEDTLS_SELF_TEST) +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_C */ +#endif /* MBEDTLS_SELF_TEST */ + +#if !defined(MBEDTLS_XTEA_ALT) + +/* Implementation that should never be optimized out by the compiler */ +static void mbedtls_zeroize( void *v, size_t n ) { + volatile unsigned char *p = v; while( n-- ) *p++ = 0; +} + +/* + * 32-bit integer manipulation macros (big endian) + */ +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ + | ( (uint32_t) (b)[(i) + 1] << 16 ) \ + | ( (uint32_t) (b)[(i) + 2] << 8 ) \ + | ( (uint32_t) (b)[(i) + 3] ); \ +} +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) ); \ +} +#endif + +void mbedtls_xtea_init( mbedtls_xtea_context *ctx ) +{ + memset( ctx, 0, sizeof( mbedtls_xtea_context ) ); +} + +void mbedtls_xtea_free( mbedtls_xtea_context *ctx ) +{ + if( ctx == NULL ) + return; + + mbedtls_zeroize( ctx, sizeof( mbedtls_xtea_context ) ); +} + +/* + * XTEA key schedule + */ +void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] ) +{ + int i; + + memset( ctx, 0, sizeof(mbedtls_xtea_context) ); + + for( i = 0; i < 4; i++ ) + { + GET_UINT32_BE( ctx->k[i], key, i << 2 ); + } +} + +/* + * XTEA encrypt function + */ +int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx, int mode, + const unsigned char input[8], unsigned char output[8]) +{ + uint32_t *k, v0, v1, i; + + k = ctx->k; + + GET_UINT32_BE( v0, input, 0 ); + GET_UINT32_BE( v1, input, 4 ); + + if( mode == MBEDTLS_XTEA_ENCRYPT ) + { + uint32_t sum = 0, delta = 0x9E3779B9; + + for( i = 0; i < 32; i++ ) + { + v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]); + sum += delta; + v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]); + } + } + else /* MBEDTLS_XTEA_DECRYPT */ + { + uint32_t delta = 0x9E3779B9, sum = delta * 32; + + for( i = 0; i < 32; i++ ) + { + v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]); + sum -= delta; + v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]); + } + } + + PUT_UINT32_BE( v0, output, 0 ); + PUT_UINT32_BE( v1, output, 4 ); + + return( 0 ); +} + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/* + * XTEA-CBC buffer encryption/decryption + */ +int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, int mode, size_t length, + unsigned char iv[8], const unsigned char *input, + unsigned char *output) +{ + int i; + unsigned char temp[8]; + + if( length % 8 ) + return( MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH ); + + if( mode == MBEDTLS_XTEA_DECRYPT ) + { + while( length > 0 ) + { + memcpy( temp, input, 8 ); + mbedtls_xtea_crypt_ecb( ctx, mode, input, output ); + + for( i = 0; i < 8; i++ ) + output[i] = (unsigned char)( output[i] ^ iv[i] ); + + memcpy( iv, temp, 8 ); + + input += 8; + output += 8; + length -= 8; + } + } + else + { + while( length > 0 ) + { + for( i = 0; i < 8; i++ ) + output[i] = (unsigned char)( input[i] ^ iv[i] ); + + mbedtls_xtea_crypt_ecb( ctx, mode, output, output ); + memcpy( iv, output, 8 ); + + input += 8; + output += 8; + length -= 8; + } + } + + return( 0 ); +} +#endif /* MBEDTLS_CIPHER_MODE_CBC */ +#endif /* !MBEDTLS_XTEA_ALT */ + +#if defined(MBEDTLS_SELF_TEST) + +/* + * XTEA tests vectors (non-official) + */ + +static const unsigned char xtea_test_key[6][16] = +{ + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f }, + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f }, + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 } +}; + +static const unsigned char xtea_test_pt[6][8] = +{ + { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 }, + { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }, + { 0x5a, 0x5b, 0x6e, 0x27, 0x89, 0x48, 0xd7, 0x7f }, + { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 }, + { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }, + { 0x70, 0xe1, 0x22, 0x5d, 0x6e, 0x4e, 0x76, 0x55 } +}; + +static const unsigned char xtea_test_ct[6][8] = +{ + { 0x49, 0x7d, 0xf3, 0xd0, 0x72, 0x61, 0x2c, 0xb5 }, + { 0xe7, 0x8f, 0x2d, 0x13, 0x74, 0x43, 0x41, 0xd8 }, + { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }, + { 0xa0, 0x39, 0x05, 0x89, 0xf8, 0xb8, 0xef, 0xa5 }, + { 0xed, 0x23, 0x37, 0x5a, 0x82, 0x1a, 0x8c, 0x2d }, + { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 } +}; + +/* + * Checkup routine + */ +int mbedtls_xtea_self_test( int verbose ) +{ + int i, ret = 0; + unsigned char buf[8]; + mbedtls_xtea_context ctx; + + mbedtls_xtea_init( &ctx ); + for( i = 0; i < 6; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " XTEA test #%d: ", i + 1 ); + + memcpy( buf, xtea_test_pt[i], 8 ); + + mbedtls_xtea_setup( &ctx, xtea_test_key[i] ); + mbedtls_xtea_crypt_ecb( &ctx, MBEDTLS_XTEA_ENCRYPT, buf, buf ); + + if( memcmp( buf, xtea_test_ct[i], 8 ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto exit; + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + } + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +exit: + mbedtls_xtea_free( &ctx ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_XTEA_C */ diff --git a/os/utils.c b/os/utils.c index 631f1b6..9725d2a 100644 --- a/os/utils.c +++ b/os/utils.c @@ -1,5 +1,10 @@ #include "utils.h" +#include +#include +#include +#include + /** * get an environment varible from the os * @param variable the variable to look for @@ -9,6 +14,15 @@ char* os_utils_getenv(char* variable) { return getenv(variable); } +/** + * returns the user's home directory + * @returns the home directory + */ +char* os_utils_get_homedir() { + struct passwd *pw = getpwuid(getuid()); + return pw->pw_dir; +} + /** * join 2 pieces of a filepath, being careful about the slashes * @param root the root part @@ -16,7 +30,7 @@ char* os_utils_getenv(char* variable) { * @param results where to put the results * @param max_len throw an error if the total is longer than max_len */ -int os_utils_filepath_join(char* root, char* extension, char* results, int max_len) { +int os_utils_filepath_join(char* root, char* extension, char* results, unsigned long max_len) { //TODO: implement slash checks if (strlen(root) + strlen(extension) + 1 > max_len) return 0; @@ -30,3 +44,8 @@ int os_utils_file_exists(char* file_name) { return 1; return 0; } + +int os_utils_directory_writeable(char* path) { + int result = access("/root/", W_OK); + return result == 0; +} diff --git a/repo/config/config.c b/repo/config/config.c index 80920fe..fec1b84 100644 --- a/repo/config/config.c +++ b/repo/config/config.c @@ -11,7 +11,7 @@ #include #include "config.h" -#include "../../os/utils.h" +#include "ipfs/os/utils.h" /*** @@ -74,3 +74,83 @@ int config_path(char* config_root, char* extension, char* result, int max_len) { int config_get_file_name(char* path, char* result) { return 0; } + +/*** + * create a configuration based on the passed in parameters + * @param config the configuration struct to be filled in + * @param num_bits_for_keypair number of bits for the key pair + * @returns true(1) on success, otherwise 0 + */ +int repo_config_init(struct RepoConfig* config, unsigned int num_bits_for_keypair) { + //TODO: convert to c + struct Identity* identity; + repo_config_identity_new(identity, num_bits_for_keypair); + return 0; + //TODO + /* + identity, err := identityConfig(out, nBitsForKeypair) + if err != nil { + return nil, err + } + + bootstrapPeers, err := DefaultBootstrapPeers() + if err != nil { + return nil, err + } + + datastore, err := datastoreConfig() + if err != nil { + return nil, err + } + + conf := &Config{ + + // setup the node's default addresses. + // NOTE: two swarm listen addrs, one tcp, one utp. + Addresses: Addresses{ + Swarm: []string{ + "/ip4/0.0.0.0/tcp/4001", + // "/ip4/0.0.0.0/udp/4002/utp", // disabled for now. + "/ip6/::/tcp/4001", + }, + API: "/ip4/127.0.0.1/tcp/5001", + Gateway: "/ip4/127.0.0.1/tcp/8080", + }, + + Datastore: datastore, + Bootstrap: BootstrapPeerStrings(bootstrapPeers), + Identity: identity, + Discovery: Discovery{MDNS{ + Enabled: true, + Interval: 10, + }}, + + // setup the node mount points. + Mounts: Mounts{ + IPFS: "/ipfs", + IPNS: "/ipns", + }, + + Ipns: Ipns{ + ResolveCacheSize: 128, + }, + + Gateway: Gateway{ + RootRedirect: "", + Writable: false, + PathPrefixes: []string{}, + HTTPHeaders: map[string][]string{ + "Access-Control-Allow-Origin": []string{"*"}, + "Access-Control-Allow-Methods": []string{"GET"}, + "Access-Control-Allow-Headers": []string{"X-Requested-With"}, + }, + }, + Reprovider: Reprovider{ + Interval: "12h", + }, + } + + return conf, nil + */ +} + diff --git a/repo/config/identity.c b/repo/config/identity.c new file mode 100644 index 0000000..61c0471 --- /dev/null +++ b/repo/config/identity.c @@ -0,0 +1,37 @@ +// +// identity.c +// c-ipfs +// +// Created by John Jones on 10/31/16. +// Copyright © 2016 JMJAtlanta. All rights reserved. +// + +#include +#include + +#include "ipfs/repo/config/identity.h" + +int repo_config_identity_generate_keypair(char* private_key, char* public_key) { + return 0; +} + +/*** + * public methods + */ + +/*** + * initializes a new Identity (this should be moved to identity.h) + * @param identity the identity to fill + * @param num_bits_for_keypair the number of bits for the keypair + * @returns true(1) on success, false(0) otherwise + */ +int repo_config_identity_new(struct Identity* identity, unsigned long num_bits_for_keypair) { + identity = malloc(sizeof(struct Identity)); + if (num_bits_for_keypair < 1024) + return 0; + char* private_key; + char* public_key; + if (!repo_config_identity_generate_keypair(private_key, public_key)) + return 0; + return 0; +} diff --git a/repo/config/identity.h b/repo/config/identity.h deleted file mode 100644 index 2323626..0000000 --- a/repo/config/identity.h +++ /dev/null @@ -1,17 +0,0 @@ -// -// identity.h -// c-ipfs -// -// Created by John Jones on 10/27/16. -// Copyright © 2016 JMJAtlanta. All rights reserved. -// - -#ifndef __REPO_CONFIG_IDENTITY_H__ -#define __REPO_CONFIG_IDENTITY_H__ - -struct Identity { - char* peer_id; - char* private_key; -}; - -#endif /* identity_h */ diff --git a/repo/config/rsa.c b/repo/config/rsa.c new file mode 100644 index 0000000..4fab374 --- /dev/null +++ b/repo/config/rsa.c @@ -0,0 +1,1730 @@ +/* + * The RSA public-key cryptosystem + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +/* + * The following sources were referenced in the design of this implementation + * of the RSA algorithm: + * + * [1] A method for obtaining digital signatures and public-key cryptosystems + * R Rivest, A Shamir, and L Adleman + * http://people.csail.mit.edu/rivest/pubs.html#RSA78 + * + * [2] Handbook of Applied Cryptography - 1997, Chapter 8 + * Menezes, van Oorschot and Vanstone + * + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_RSA_C) + +#include "rsa.h" +#include "oid.h" + +#include + +#if defined(MBEDTLS_PKCS1_V21) +#include "md.h" +#endif + +#if defined(MBEDTLS_PKCS1_V15) && !defined(__OpenBSD__) +#include +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "platform.h" +#else +#include +#define mbedtls_printf printf +#define mbedtls_calloc calloc +#define mbedtls_free free +#endif + +/* + * Initialize an RSA context + */ +void mbedtls_rsa_init( mbedtls_rsa_context *ctx, + int padding, + int hash_id ) +{ + memset( ctx, 0, sizeof( mbedtls_rsa_context ) ); + + mbedtls_rsa_set_padding( ctx, padding, hash_id ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_init( &ctx->mutex ); +#endif +} + +/* + * Set padding for an existing RSA context + */ +void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding, int hash_id ) +{ + ctx->padding = padding; + ctx->hash_id = hash_id; +} + +#if defined(MBEDTLS_GENPRIME) + +/* + * Generate an RSA keypair + */ +int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + unsigned int nbits, int exponent ) +{ + int ret; + mbedtls_mpi P1, Q1, H, G; + + if( f_rng == NULL || nbits < 128 || exponent < 3 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( nbits % 2 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &P1 ); mbedtls_mpi_init( &Q1 ); + mbedtls_mpi_init( &H ); mbedtls_mpi_init( &G ); + + /* + * find primes P and Q with Q < P so that: + * GCD( E, (P-1)*(Q-1) ) == 1 + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->E, exponent ) ); + + do + { + MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->P, nbits >> 1, 0, + f_rng, p_rng ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->Q, nbits >> 1, 0, + f_rng, p_rng ) ); + + if( mbedtls_mpi_cmp_mpi( &ctx->P, &ctx->Q ) == 0 ) + continue; + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->N, &ctx->P, &ctx->Q ) ); + if( mbedtls_mpi_bitlen( &ctx->N ) != nbits ) + continue; + + if( mbedtls_mpi_cmp_mpi( &ctx->P, &ctx->Q ) < 0 ) + mbedtls_mpi_swap( &ctx->P, &ctx->Q ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &P1, &ctx->P, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &Q1, &ctx->Q, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &H, &P1, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->E, &H ) ); + } + while( mbedtls_mpi_cmp_int( &G, 1 ) != 0 ); + + /* + * D = E^-1 mod ((P-1)*(Q-1)) + * DP = D mod (P - 1) + * DQ = D mod (Q - 1) + * QP = Q^-1 mod P + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->D , &ctx->E, &H ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->DP, &ctx->D, &P1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->DQ, &ctx->D, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->QP, &ctx->Q, &ctx->P ) ); + + ctx->len = ( mbedtls_mpi_bitlen( &ctx->N ) + 7 ) >> 3; + +cleanup: + + mbedtls_mpi_free( &P1 ); mbedtls_mpi_free( &Q1 ); mbedtls_mpi_free( &H ); mbedtls_mpi_free( &G ); + + if( ret != 0 ) + { + mbedtls_rsa_free( ctx ); + return( MBEDTLS_ERR_RSA_KEY_GEN_FAILED + ret ); + } + + return( 0 ); +} + +#endif /* MBEDTLS_GENPRIME */ + +/* + * Check a public RSA key + */ +int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx ) +{ + if( !ctx->N.p || !ctx->E.p ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + if( ( ctx->N.p[0] & 1 ) == 0 || + ( ctx->E.p[0] & 1 ) == 0 ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + if( mbedtls_mpi_bitlen( &ctx->N ) < 128 || + mbedtls_mpi_bitlen( &ctx->N ) > MBEDTLS_MPI_MAX_BITS ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + if( mbedtls_mpi_bitlen( &ctx->E ) < 2 || + mbedtls_mpi_cmp_mpi( &ctx->E, &ctx->N ) >= 0 ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + return( 0 ); +} + +/* + * Check a private RSA key + */ +int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx ) +{ + int ret; + mbedtls_mpi PQ, DE, P1, Q1, H, I, G, G2, L1, L2, DP, DQ, QP; + + if( ( ret = mbedtls_rsa_check_pubkey( ctx ) ) != 0 ) + return( ret ); + + if( !ctx->P.p || !ctx->Q.p || !ctx->D.p ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + + mbedtls_mpi_init( &PQ ); mbedtls_mpi_init( &DE ); mbedtls_mpi_init( &P1 ); mbedtls_mpi_init( &Q1 ); + mbedtls_mpi_init( &H ); mbedtls_mpi_init( &I ); mbedtls_mpi_init( &G ); mbedtls_mpi_init( &G2 ); + mbedtls_mpi_init( &L1 ); mbedtls_mpi_init( &L2 ); mbedtls_mpi_init( &DP ); mbedtls_mpi_init( &DQ ); + mbedtls_mpi_init( &QP ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &PQ, &ctx->P, &ctx->Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DE, &ctx->D, &ctx->E ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &P1, &ctx->P, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &Q1, &ctx->Q, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &H, &P1, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->E, &H ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G2, &P1, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &L1, &L2, &H, &G2 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &I, &DE, &L1 ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &DP, &ctx->D, &P1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &DQ, &ctx->D, &Q1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &QP, &ctx->Q, &ctx->P ) ); + /* + * Check for a valid PKCS1v2 private key + */ + if( mbedtls_mpi_cmp_mpi( &PQ, &ctx->N ) != 0 || + mbedtls_mpi_cmp_mpi( &DP, &ctx->DP ) != 0 || + mbedtls_mpi_cmp_mpi( &DQ, &ctx->DQ ) != 0 || + mbedtls_mpi_cmp_mpi( &QP, &ctx->QP ) != 0 || + mbedtls_mpi_cmp_int( &L2, 0 ) != 0 || + mbedtls_mpi_cmp_int( &I, 1 ) != 0 || + mbedtls_mpi_cmp_int( &G, 1 ) != 0 ) + { + ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED; + } + +cleanup: + mbedtls_mpi_free( &PQ ); mbedtls_mpi_free( &DE ); mbedtls_mpi_free( &P1 ); mbedtls_mpi_free( &Q1 ); + mbedtls_mpi_free( &H ); mbedtls_mpi_free( &I ); mbedtls_mpi_free( &G ); mbedtls_mpi_free( &G2 ); + mbedtls_mpi_free( &L1 ); mbedtls_mpi_free( &L2 ); mbedtls_mpi_free( &DP ); mbedtls_mpi_free( &DQ ); + mbedtls_mpi_free( &QP ); + + if( ret == MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ) + return( ret ); + + if( ret != 0 ) + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED + ret ); + + return( 0 ); +} + +/* + * Check if contexts holding a public and private key match + */ +int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv ) +{ + if( mbedtls_rsa_check_pubkey( pub ) != 0 || + mbedtls_rsa_check_privkey( prv ) != 0 ) + { + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + } + + if( mbedtls_mpi_cmp_mpi( &pub->N, &prv->N ) != 0 || + mbedtls_mpi_cmp_mpi( &pub->E, &prv->E ) != 0 ) + { + return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); + } + + return( 0 ); +} + +/* + * Do an RSA public key operation + */ +int mbedtls_rsa_public( mbedtls_rsa_context *ctx, + const unsigned char *input, + unsigned char *output ) +{ + int ret; + size_t olen; + mbedtls_mpi T; + + mbedtls_mpi_init( &T ); + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) ); + + if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 ) + { + ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA; + goto cleanup; + } + + olen = ctx->len; + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, &ctx->E, &ctx->N, &ctx->RN ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) ); + +cleanup: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + mbedtls_mpi_free( &T ); + + if( ret != 0 ) + return( MBEDTLS_ERR_RSA_PUBLIC_FAILED + ret ); + + return( 0 ); +} + +/* + * Generate or update blinding values, see section 10 of: + * KOCHER, Paul C. Timing attacks on implementations of Diffie-Hellman, RSA, + * DSS, and other systems. In : Advances in Cryptology-CRYPTO'96. Springer + * Berlin Heidelberg, 1996. p. 104-113. + */ +static int rsa_prepare_blinding( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) +{ + int ret, count = 0; + + if( ctx->Vf.p != NULL ) + { + /* We already have blinding values, just update them by squaring */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &ctx->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &ctx->Vf ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->N ) ); + + goto cleanup; + } + + /* Unblinding value: Vf = random number, invertible mod N */ + do { + if( count++ > 10 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->Vf, ctx->len - 1, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &ctx->Vi, &ctx->Vf, &ctx->N ) ); + } while( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) != 0 ); + + /* Blinding value: Vi = Vf^(-e) mod N */ + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->Vi, &ctx->Vf, &ctx->N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->Vi, &ctx->Vi, &ctx->E, &ctx->N, &ctx->RN ) ); + + +cleanup: + return( ret ); +} + +/* + * Do an RSA private key operation + */ +int mbedtls_rsa_private( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + const unsigned char *input, + unsigned char *output ) +{ + int ret; + size_t olen; + mbedtls_mpi T, T1, T2; + + /* Make sure we have private key info, prevent possible misuse */ + if( ctx->P.p == NULL || ctx->Q.p == NULL || ctx->D.p == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + mbedtls_mpi_init( &T ); mbedtls_mpi_init( &T1 ); mbedtls_mpi_init( &T2 ); + +#if defined(MBEDTLS_THREADING_C) + if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) + return( ret ); +#endif + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) ); + if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 ) + { + ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA; + goto cleanup; + } + + if( f_rng != NULL ) + { + /* + * Blinding + * T = T * Vi mod N + */ + MBEDTLS_MPI_CHK( rsa_prepare_blinding( ctx, f_rng, p_rng ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) ); + } + +#if defined(MBEDTLS_RSA_NO_CRT) + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, &ctx->D, &ctx->N, &ctx->RN ) ); +#else + /* + * faster decryption using the CRT + * + * T1 = input ^ dP mod P + * T2 = input ^ dQ mod Q + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T1, &T, &ctx->DP, &ctx->P, &ctx->RP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T2, &T, &ctx->DQ, &ctx->Q, &ctx->RQ ) ); + + /* + * T = (T1 - T2) * (Q^-1 mod P) mod P + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &T1, &T2 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &T, &ctx->QP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T1, &ctx->P ) ); + + /* + * T = T2 + T * Q + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &T, &ctx->Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &T, &T2, &T1 ) ); +#endif /* MBEDTLS_RSA_NO_CRT */ + + if( f_rng != NULL ) + { + /* + * Unblind + * T = T * Vf mod N + */ + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vf ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) ); + } + + olen = ctx->len; + MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) ); + +cleanup: +#if defined(MBEDTLS_THREADING_C) + if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) + return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); +#endif + + mbedtls_mpi_free( &T ); mbedtls_mpi_free( &T1 ); mbedtls_mpi_free( &T2 ); + + if( ret != 0 ) + return( MBEDTLS_ERR_RSA_PRIVATE_FAILED + ret ); + + return( 0 ); +} + +#if defined(MBEDTLS_PKCS1_V21) +/** + * Generate and apply the MGF1 operation (from PKCS#1 v2.1) to a buffer. + * + * \param dst buffer to mask + * \param dlen length of destination buffer + * \param src source of the mask generation + * \param slen length of the source buffer + * \param md_ctx message digest context to use + */ +static void mgf_mask( unsigned char *dst, size_t dlen, unsigned char *src, + size_t slen, mbedtls_md_context_t *md_ctx ) +{ + unsigned char mask[MBEDTLS_MD_MAX_SIZE]; + unsigned char counter[4]; + unsigned char *p; + unsigned int hlen; + size_t i, use_len; + + memset( mask, 0, MBEDTLS_MD_MAX_SIZE ); + memset( counter, 0, 4 ); + + hlen = mbedtls_md_get_size( md_ctx->md_info ); + + /* Generate and apply dbMask */ + p = dst; + + while( dlen > 0 ) + { + use_len = hlen; + if( dlen < hlen ) + use_len = dlen; + + mbedtls_md_starts( md_ctx ); + mbedtls_md_update( md_ctx, src, slen ); + mbedtls_md_update( md_ctx, counter, 4 ); + mbedtls_md_finish( md_ctx, mask ); + + for( i = 0; i < use_len; ++i ) + *p++ ^= mask[i]; + + counter[3]++; + + dlen -= use_len; + } +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSAES-OAEP-ENCRYPT function + */ +int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t ilen, + const unsigned char *input, + unsigned char *output ) +{ + size_t olen; + int ret; + unsigned char *p = output; + unsigned int hlen; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( f_rng == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + hlen = mbedtls_md_get_size( md_info ); + + /* first comparison checks for overflow */ + if( ilen + 2 * hlen + 2 < ilen || olen < ilen + 2 * hlen + 2 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + memset( output, 0, olen ); + + *p++ = 0; + + /* Generate a random octet string seed */ + if( ( ret = f_rng( p_rng, p, hlen ) ) != 0 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED + ret ); + + p += hlen; + + /* Construct DB */ + mbedtls_md( md_info, label, label_len, p ); + p += hlen; + p += olen - 2 * hlen - 2 - ilen; + *p++ = 1; + memcpy( p, input, ilen ); + + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + /* maskedDB: Apply dbMask to DB */ + mgf_mask( output + hlen + 1, olen - hlen - 1, output + 1, hlen, + &md_ctx ); + + /* maskedSeed: Apply seedMask to seed */ + mgf_mask( output + 1, hlen, output + hlen + 1, olen - hlen - 1, + &md_ctx ); + + mbedtls_md_free( &md_ctx ); + + return( ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, output, output ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) ); +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-ENCRYPT function + */ +int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ) +{ + size_t nb_pad, olen; + int ret; + unsigned char *p = output; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + // We don't check p_rng because it won't be dereferenced here + if( f_rng == NULL || input == NULL || output == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + + /* first comparison checks for overflow */ + if( ilen + 11 < ilen || olen < ilen + 11 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + nb_pad = olen - 3 - ilen; + + *p++ = 0; + if( mode == MBEDTLS_RSA_PUBLIC ) + { + *p++ = MBEDTLS_RSA_CRYPT; + + while( nb_pad-- > 0 ) + { + int rng_dl = 100; + + do { + ret = f_rng( p_rng, p, 1 ); + } while( *p == 0 && --rng_dl && ret == 0 ); + + /* Check if RNG failed to generate data */ + if( rng_dl == 0 || ret != 0 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED + ret ); + + p++; + } + } + else + { + *p++ = MBEDTLS_RSA_SIGN; + + while( nb_pad-- > 0 ) + *p++ = 0xFF; + } + + *p++ = 0; + memcpy( p, input, ilen ); + + return( ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, output, output ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Add the message padding, then do an RSA operation + */ +int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t ilen, + const unsigned char *input, + unsigned char *output ) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsaes_pkcs1_v15_encrypt( ctx, f_rng, p_rng, mode, ilen, + input, output ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsaes_oaep_encrypt( ctx, f_rng, p_rng, mode, NULL, 0, + ilen, input, output ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSAES-OAEP-DECRYPT function + */ +int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + const unsigned char *label, size_t label_len, + size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len ) +{ + int ret; + size_t ilen, i, pad_len; + unsigned char *p, bad, pad_done; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + unsigned char lhash[MBEDTLS_MD_MAX_SIZE]; + unsigned int hlen; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + + /* + * Parameters sanity checks + */ + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ilen = ctx->len; + + if( ilen < 16 || ilen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hlen = mbedtls_md_get_size( md_info ); + + // checking for integer underflow + if( 2 * hlen + 2 > ilen ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + /* + * RSA operation + */ + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, input, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf ); + + if( ret != 0 ) + return( ret ); + + /* + * Unmask data and generate lHash + */ + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + + /* Generate lHash */ + mbedtls_md( md_info, label, label_len, lhash ); + + /* seed: Apply seedMask to maskedSeed */ + mgf_mask( buf + 1, hlen, buf + hlen + 1, ilen - hlen - 1, + &md_ctx ); + + /* DB: Apply dbMask to maskedDB */ + mgf_mask( buf + hlen + 1, ilen - hlen - 1, buf + 1, hlen, + &md_ctx ); + + mbedtls_md_free( &md_ctx ); + + /* + * Check contents, in "constant-time" + */ + p = buf; + bad = 0; + + bad |= *p++; /* First byte must be 0 */ + + p += hlen; /* Skip seed */ + + /* Check lHash */ + for( i = 0; i < hlen; i++ ) + bad |= lhash[i] ^ *p++; + + /* Get zero-padding len, but always read till end of buffer + * (minus one, for the 01 byte) */ + pad_len = 0; + pad_done = 0; + for( i = 0; i < ilen - 2 * hlen - 2; i++ ) + { + pad_done |= p[i]; + pad_len += ((pad_done | (unsigned char)-pad_done) >> 7) ^ 1; + } + + p += pad_len; + bad |= *p++ ^ 0x01; + + /* + * The only information "leaked" is whether the padding was correct or not + * (eg, no data is copied if it was not correct). This meets the + * recommendations in PKCS#1 v2.2: an opponent cannot distinguish between + * the different error conditions. + */ + if( bad != 0 ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + if( ilen - ( p - buf ) > output_max_len ) + return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); + + *olen = ilen - (p - buf); + memcpy( output, p, *olen ); + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-DECRYPT function + */ +int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len) +{ + int ret; + size_t ilen, pad_count = 0, i; + unsigned char *p, bad, pad_done = 0; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ilen = ctx->len; + + if( ilen < 16 || ilen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, input, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf ); + + if( ret != 0 ) + return( ret ); + + p = buf; + bad = 0; + + /* + * Check and get padding len in "constant-time" + */ + bad |= *p++; /* First byte must be 0 */ + + /* This test does not depend on secret data */ + if( mode == MBEDTLS_RSA_PRIVATE ) + { + bad |= *p++ ^ MBEDTLS_RSA_CRYPT; + + /* Get padding len, but always read till end of buffer + * (minus one, for the 00 byte) */ + for( i = 0; i < ilen - 3; i++ ) + { + pad_done |= ((p[i] | (unsigned char)-p[i]) >> 7) ^ 1; + pad_count += ((pad_done | (unsigned char)-pad_done) >> 7) ^ 1; + } + + p += pad_count; + bad |= *p++; /* Must be zero */ + } + else + { + bad |= *p++ ^ MBEDTLS_RSA_SIGN; + + /* Get padding len, but always read till end of buffer + * (minus one, for the 00 byte) */ + for( i = 0; i < ilen - 3; i++ ) + { + pad_done |= ( p[i] != 0xFF ); + pad_count += ( pad_done == 0 ); + } + + p += pad_count; + bad |= *p++; /* Must be zero */ + } + + bad |= ( pad_count < 8 ); + + if( bad ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + if( ilen - ( p - buf ) > output_max_len ) + return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); + + *olen = ilen - (p - buf); + memcpy( output, p, *olen ); + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Do an RSA operation, then remove the message padding + */ +int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsaes_pkcs1_v15_decrypt( ctx, f_rng, p_rng, mode, olen, + input, output, output_max_len ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsaes_oaep_decrypt( ctx, f_rng, p_rng, mode, NULL, 0, + olen, input, output, + output_max_len ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PSS-SIGN function + */ +int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ) +{ + size_t olen; + unsigned char *p = sig; + unsigned char salt[MBEDTLS_MD_MAX_SIZE]; + unsigned int slen, hlen, offset = 0; + int ret; + size_t msb; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( f_rng == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + + if( md_alg != MBEDTLS_MD_NONE ) + { + /* Gather length of hash to sign */ + md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hashlen = mbedtls_md_get_size( md_info ); + } + + md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hlen = mbedtls_md_get_size( md_info ); + slen = hlen; + + if( olen < hlen + slen + 2 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + memset( sig, 0, olen ); + + /* Generate salt of length slen */ + if( ( ret = f_rng( p_rng, salt, slen ) ) != 0 ) + return( MBEDTLS_ERR_RSA_RNG_FAILED + ret ); + + /* Note: EMSA-PSS encoding is over the length of N - 1 bits */ + msb = mbedtls_mpi_bitlen( &ctx->N ) - 1; + p += olen - hlen * 2 - 2; + *p++ = 0x01; + memcpy( p, salt, slen ); + p += slen; + + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + /* Generate H = Hash( M' ) */ + mbedtls_md_starts( &md_ctx ); + mbedtls_md_update( &md_ctx, p, 8 ); + mbedtls_md_update( &md_ctx, hash, hashlen ); + mbedtls_md_update( &md_ctx, salt, slen ); + mbedtls_md_finish( &md_ctx, p ); + + /* Compensate for boundary condition when applying mask */ + if( msb % 8 == 0 ) + offset = 1; + + /* maskedDB: Apply dbMask to DB */ + mgf_mask( sig + offset, olen - hlen - 1 - offset, p, hlen, &md_ctx ); + + mbedtls_md_free( &md_ctx ); + + msb = mbedtls_mpi_bitlen( &ctx->N ) - 1; + sig[0] &= 0xFF >> ( olen * 8 - msb ); + + p += hlen; + *p++ = 0xBC; + + return( ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, sig, sig ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig ) ); +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-V1_5-SIGN function + */ +/* + * Do an RSA operation to sign the message digest + */ +int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ) +{ + size_t nb_pad, olen, oid_size = 0; + unsigned char *p = sig; + const char *oid = NULL; + unsigned char *sig_try = NULL, *verif = NULL; + size_t i; + unsigned char diff; + volatile unsigned char diff_no_optimize; + int ret; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + olen = ctx->len; + nb_pad = olen - 3; + + if( md_alg != MBEDTLS_MD_NONE ) + { + const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + nb_pad -= 10 + oid_size; + + hashlen = mbedtls_md_get_size( md_info ); + } + + nb_pad -= hashlen; + + if( ( nb_pad < 8 ) || ( nb_pad > olen ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + *p++ = 0; + *p++ = MBEDTLS_RSA_SIGN; + memset( p, 0xFF, nb_pad ); + p += nb_pad; + *p++ = 0; + + if( md_alg == MBEDTLS_MD_NONE ) + { + memcpy( p, hash, hashlen ); + } + else + { + /* + * DigestInfo ::= SEQUENCE { + * digestAlgorithm DigestAlgorithmIdentifier, + * digest Digest } + * + * DigestAlgorithmIdentifier ::= AlgorithmIdentifier + * + * Digest ::= OCTET STRING + */ + *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; + *p++ = (unsigned char) ( 0x08 + oid_size + hashlen ); + *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; + *p++ = (unsigned char) ( 0x04 + oid_size ); + *p++ = MBEDTLS_ASN1_OID; + *p++ = oid_size & 0xFF; + memcpy( p, oid, oid_size ); + p += oid_size; + *p++ = MBEDTLS_ASN1_NULL; + *p++ = 0x00; + *p++ = MBEDTLS_ASN1_OCTET_STRING; + *p++ = hashlen; + memcpy( p, hash, hashlen ); + } + + if( mode == MBEDTLS_RSA_PUBLIC ) + return( mbedtls_rsa_public( ctx, sig, sig ) ); + + /* + * In order to prevent Lenstra's attack, make the signature in a + * temporary buffer and check it before returning it. + */ + sig_try = mbedtls_calloc( 1, ctx->len ); + if( sig_try == NULL ) + return( MBEDTLS_ERR_MPI_ALLOC_FAILED ); + + verif = mbedtls_calloc( 1, ctx->len ); + if( verif == NULL ) + { + mbedtls_free( sig_try ); + return( MBEDTLS_ERR_MPI_ALLOC_FAILED ); + } + + MBEDTLS_MPI_CHK( mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig_try ) ); + MBEDTLS_MPI_CHK( mbedtls_rsa_public( ctx, sig_try, verif ) ); + + /* Compare in constant time just in case */ + for( diff = 0, i = 0; i < ctx->len; i++ ) + diff |= verif[i] ^ sig[i]; + diff_no_optimize = diff; + + if( diff_no_optimize != 0 ) + { + ret = MBEDTLS_ERR_RSA_PRIVATE_FAILED; + goto cleanup; + } + + memcpy( sig, sig_try, ctx->len ); + +cleanup: + mbedtls_free( sig_try ); + mbedtls_free( verif ); + + return( ret ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Do an RSA operation to sign the message digest + */ +int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig ) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsassa_pkcs1_v15_sign( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsassa_pss_sign( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +#if defined(MBEDTLS_PKCS1_V21) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PSS-VERIFY function + */ +int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + mbedtls_md_type_t mgf1_hash_id, + int expected_salt_len, + const unsigned char *sig ) +{ + int ret; + size_t siglen; + unsigned char *p; + unsigned char result[MBEDTLS_MD_MAX_SIZE]; + unsigned char zeros[8]; + unsigned int hlen; + size_t slen, msb; + const mbedtls_md_info_t *md_info; + mbedtls_md_context_t md_ctx; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + siglen = ctx->len; + + if( siglen < 16 || siglen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, sig, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, buf ); + + if( ret != 0 ) + return( ret ); + + p = buf; + + if( buf[siglen - 1] != 0xBC ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + if( md_alg != MBEDTLS_MD_NONE ) + { + /* Gather length of hash to sign */ + md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hashlen = mbedtls_md_get_size( md_info ); + } + + md_info = mbedtls_md_info_from_type( mgf1_hash_id ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + hlen = mbedtls_md_get_size( md_info ); + slen = siglen - hlen - 1; /* Currently length of salt + padding */ + + memset( zeros, 0, 8 ); + + /* + * Note: EMSA-PSS verification is over the length of N - 1 bits + */ + msb = mbedtls_mpi_bitlen( &ctx->N ) - 1; + + /* Compensate for boundary condition when applying mask */ + if( msb % 8 == 0 ) + { + p++; + siglen -= 1; + } + if( buf[0] >> ( 8 - siglen * 8 + msb ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + mbedtls_md_init( &md_ctx ); + if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 ) + { + mbedtls_md_free( &md_ctx ); + return( ret ); + } + + mgf_mask( p, siglen - hlen - 1, p + siglen - hlen - 1, hlen, &md_ctx ); + + buf[0] &= 0xFF >> ( siglen * 8 - msb ); + + while( p < buf + siglen && *p == 0 ) + p++; + + if( p == buf + siglen || + *p++ != 0x01 ) + { + mbedtls_md_free( &md_ctx ); + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } + + /* Actual salt len */ + slen -= p - buf; + + if( expected_salt_len != MBEDTLS_RSA_SALT_LEN_ANY && + slen != (size_t) expected_salt_len ) + { + mbedtls_md_free( &md_ctx ); + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } + + /* + * Generate H = Hash( M' ) + */ + mbedtls_md_starts( &md_ctx ); + mbedtls_md_update( &md_ctx, zeros, 8 ); + mbedtls_md_update( &md_ctx, hash, hashlen ); + mbedtls_md_update( &md_ctx, p, slen ); + mbedtls_md_finish( &md_ctx, result ); + + mbedtls_md_free( &md_ctx ); + + if( memcmp( p + slen, result, hlen ) == 0 ) + return( 0 ); + else + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); +} + +/* + * Simplified PKCS#1 v2.1 RSASSA-PSS-VERIFY function + */ +int mbedtls_rsa_rsassa_pss_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ) +{ + mbedtls_md_type_t mgf1_hash_id = ( ctx->hash_id != MBEDTLS_MD_NONE ) + ? (mbedtls_md_type_t) ctx->hash_id + : md_alg; + + return( mbedtls_rsa_rsassa_pss_verify_ext( ctx, f_rng, p_rng, mode, + md_alg, hashlen, hash, + mgf1_hash_id, MBEDTLS_RSA_SALT_LEN_ANY, + sig ) ); + +} +#endif /* MBEDTLS_PKCS1_V21 */ + +#if defined(MBEDTLS_PKCS1_V15) +/* + * Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-v1_5-VERIFY function + */ +int mbedtls_rsa_rsassa_pkcs1_v15_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ) +{ + int ret; + size_t len, siglen, asn1_len; + unsigned char *p, *end; + mbedtls_md_type_t msg_md_alg; + const mbedtls_md_info_t *md_info; + mbedtls_asn1_buf oid; + unsigned char buf[MBEDTLS_MPI_MAX_SIZE]; + + if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + siglen = ctx->len; + + if( siglen < 16 || siglen > sizeof( buf ) ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + + ret = ( mode == MBEDTLS_RSA_PUBLIC ) + ? mbedtls_rsa_public( ctx, sig, buf ) + : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, buf ); + + if( ret != 0 ) + return( ret ); + + p = buf; + + if( *p++ != 0 || *p++ != MBEDTLS_RSA_SIGN ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + + while( *p != 0 ) + { + if( p >= buf + siglen - 1 || *p != 0xFF ) + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + p++; + } + p++; + + len = siglen - ( p - buf ); + + if( len == hashlen && md_alg == MBEDTLS_MD_NONE ) + { + if( memcmp( p, hash, hashlen ) == 0 ) + return( 0 ); + else + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + } + + md_info = mbedtls_md_info_from_type( md_alg ); + if( md_info == NULL ) + return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); + hashlen = mbedtls_md_get_size( md_info ); + + end = p + len; + + /* + * Parse the ASN.1 structure inside the PKCS#1 v1.5 structure + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( asn1_len + 2 != len ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, + MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( asn1_len + 6 + hashlen != len ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &oid.len, MBEDTLS_ASN1_OID ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + oid.p = p; + p += oid.len; + + if( mbedtls_oid_get_md_alg( &oid, &msg_md_alg ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( md_alg != msg_md_alg ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + /* + * assume the algorithm parameters must be NULL + */ + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, MBEDTLS_ASN1_NULL ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( ( ret = mbedtls_asn1_get_tag( &p, end, &asn1_len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( asn1_len != hashlen ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + if( memcmp( p, hash, hashlen ) != 0 ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + p += hashlen; + + if( p != end ) + return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Do an RSA operation and check the message digest + */ +int mbedtls_rsa_pkcs1_verify( mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int mode, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig ) +{ + switch( ctx->padding ) + { +#if defined(MBEDTLS_PKCS1_V15) + case MBEDTLS_RSA_PKCS_V15: + return mbedtls_rsa_rsassa_pkcs1_v15_verify( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + +#if defined(MBEDTLS_PKCS1_V21) + case MBEDTLS_RSA_PKCS_V21: + return mbedtls_rsa_rsassa_pss_verify( ctx, f_rng, p_rng, mode, md_alg, + hashlen, hash, sig ); +#endif + + default: + return( MBEDTLS_ERR_RSA_INVALID_PADDING ); + } +} + +/* + * Copy the components of an RSA key + */ +int mbedtls_rsa_copy( mbedtls_rsa_context *dst, const mbedtls_rsa_context *src ) +{ + int ret; + + dst->ver = src->ver; + dst->len = src->len; + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->N, &src->N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->E, &src->E ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->D, &src->D ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->P, &src->P ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Q, &src->Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DP, &src->DP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DQ, &src->DQ ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->QP, &src->QP ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RN, &src->RN ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RP, &src->RP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RQ, &src->RQ ) ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vi, &src->Vi ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vf, &src->Vf ) ); + + dst->padding = src->padding; + dst->hash_id = src->hash_id; + +cleanup: + if( ret != 0 ) + mbedtls_rsa_free( dst ); + + return( ret ); +} + +/* + * Free the components of an RSA key + */ +void mbedtls_rsa_free( mbedtls_rsa_context *ctx ) +{ + mbedtls_mpi_free( &ctx->Vi ); mbedtls_mpi_free( &ctx->Vf ); + mbedtls_mpi_free( &ctx->RQ ); mbedtls_mpi_free( &ctx->RP ); mbedtls_mpi_free( &ctx->RN ); + mbedtls_mpi_free( &ctx->QP ); mbedtls_mpi_free( &ctx->DQ ); mbedtls_mpi_free( &ctx->DP ); + mbedtls_mpi_free( &ctx->Q ); mbedtls_mpi_free( &ctx->P ); mbedtls_mpi_free( &ctx->D ); + mbedtls_mpi_free( &ctx->E ); mbedtls_mpi_free( &ctx->N ); + +#if defined(MBEDTLS_THREADING_C) + mbedtls_mutex_free( &ctx->mutex ); +#endif +} + +#if defined(MBEDTLS_SELF_TEST) + +#include "sha1.h" + +/* + * Example RSA-1024 keypair, for test purposes + */ +#define KEY_LEN 128 + +#define RSA_N "9292758453063D803DD603D5E777D788" \ +"8ED1D5BF35786190FA2F23EBC0848AEA" \ +"DDA92CA6C3D80B32C4D109BE0F36D6AE" \ +"7130B9CED7ACDF54CFC7555AC14EEBAB" \ +"93A89813FBF3C4F8066D2D800F7C38A8" \ +"1AE31942917403FF4946B0A83D3D3E05" \ +"EE57C6F5F5606FB5D4BC6CD34EE0801A" \ +"5E94BB77B07507233A0BC7BAC8F90F79" + +#define RSA_E "10001" + +#define RSA_D "24BF6185468786FDD303083D25E64EFC" \ +"66CA472BC44D253102F8B4A9D3BFA750" \ +"91386C0077937FE33FA3252D28855837" \ +"AE1B484A8A9A45F7EE8C0C634F99E8CD" \ +"DF79C5CE07EE72C7F123142198164234" \ +"CABB724CF78B8173B9F880FC86322407" \ +"AF1FEDFDDE2BEB674CA15F3E81A1521E" \ +"071513A1E85B5DFA031F21ECAE91A34D" + +#define RSA_P "C36D0EB7FCD285223CFB5AABA5BDA3D8" \ +"2C01CAD19EA484A87EA4377637E75500" \ +"FCB2005C5C7DD6EC4AC023CDA285D796" \ +"C3D9E75E1EFC42488BB4F1D13AC30A57" + +#define RSA_Q "C000DF51A7C77AE8D7C7370C1FF55B69" \ +"E211C2B9E5DB1ED0BF61D0D9899620F4" \ +"910E4168387E3C30AA1E00C339A79508" \ +"8452DD96A9A5EA5D9DCA68DA636032AF" + +#define RSA_DP "C1ACF567564274FB07A0BBAD5D26E298" \ +"3C94D22288ACD763FD8E5600ED4A702D" \ +"F84198A5F06C2E72236AE490C93F07F8" \ +"3CC559CD27BC2D1CA488811730BB5725" + +#define RSA_DQ "4959CBF6F8FEF750AEE6977C155579C7" \ +"D8AAEA56749EA28623272E4F7D0592AF" \ +"7C1F1313CAC9471B5C523BFE592F517B" \ +"407A1BD76C164B93DA2D32A383E58357" + +#define RSA_QP "9AE7FBC99546432DF71896FC239EADAE" \ +"F38D18D2B2F0E2DD275AA977E2BF4411" \ +"F5A3B2A5D33605AEBBCCBA7FEB9F2D2F" \ +"A74206CEC169D74BF5A8C50D6F48EA08" + +#define PT_LEN 24 +#define RSA_PT "\xAA\xBB\xCC\x03\x02\x01\x00\xFF\xFF\xFF\xFF\xFF" \ +"\x11\x22\x33\x0A\x0B\x0C\xCC\xDD\xDD\xDD\xDD\xDD" + +#if defined(MBEDTLS_PKCS1_V15) +static int myrand( void *rng_state, unsigned char *output, size_t len ) +{ +#if !defined(__OpenBSD__) + size_t i; + + if( rng_state != NULL ) + rng_state = NULL; + + for( i = 0; i < len; ++i ) + output[i] = rand(); +#else + if( rng_state != NULL ) + rng_state = NULL; + + arc4random_buf( output, len ); +#endif /* !OpenBSD */ + + return( 0 ); +} +#endif /* MBEDTLS_PKCS1_V15 */ + +/* + * Checkup routine + */ +int mbedtls_rsa_self_test( int verbose ) +{ + int ret = 0; +#if defined(MBEDTLS_PKCS1_V15) + size_t len; + mbedtls_rsa_context rsa; + unsigned char rsa_plaintext[PT_LEN]; + unsigned char rsa_decrypted[PT_LEN]; + unsigned char rsa_ciphertext[KEY_LEN]; +#if defined(MBEDTLS_SHA1_C) + unsigned char sha1sum[20]; +#endif + + mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 ); + + rsa.len = KEY_LEN; + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.N , 16, RSA_N ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.E , 16, RSA_E ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.D , 16, RSA_D ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.P , 16, RSA_P ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.Q , 16, RSA_Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.DP, 16, RSA_DP ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.DQ, 16, RSA_DQ ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &rsa.QP, 16, RSA_QP ) ); + + if( verbose != 0 ) + mbedtls_printf( " RSA key validation: " ); + + if( mbedtls_rsa_check_pubkey( &rsa ) != 0 || + mbedtls_rsa_check_privkey( &rsa ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n PKCS#1 encryption : " ); + + memcpy( rsa_plaintext, RSA_PT, PT_LEN ); + + if( mbedtls_rsa_pkcs1_encrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PUBLIC, PT_LEN, + rsa_plaintext, rsa_ciphertext ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n PKCS#1 decryption : " ); + + if( mbedtls_rsa_pkcs1_decrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PRIVATE, &len, + rsa_ciphertext, rsa_decrypted, + sizeof(rsa_decrypted) ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( memcmp( rsa_decrypted, rsa_plaintext, len ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); + +#if defined(MBEDTLS_SHA1_C) + if( verbose != 0 ) + mbedtls_printf( " PKCS#1 data sign : " ); + + mbedtls_sha1( rsa_plaintext, PT_LEN, sha1sum ); + + if( mbedtls_rsa_pkcs1_sign( &rsa, myrand, NULL, MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA1, 0, + sha1sum, rsa_ciphertext ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n PKCS#1 sig. verify: " ); + + if( mbedtls_rsa_pkcs1_verify( &rsa, NULL, NULL, MBEDTLS_RSA_PUBLIC, MBEDTLS_MD_SHA1, 0, + sha1sum, rsa_ciphertext ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + return( 1 ); + } + + if( verbose != 0 ) + mbedtls_printf( "passed\n" ); +#endif /* MBEDTLS_SHA1_C */ + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + +cleanup: + mbedtls_rsa_free( &rsa ); +#else /* MBEDTLS_PKCS1_V15 */ + ((void) verbose); +#endif /* MBEDTLS_PKCS1_V15 */ + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST */ + +#endif /* MBEDTLS_RSA_C */ diff --git a/repo/fsrepo/fs_repo.c b/repo/fsrepo/fs_repo.c index 5b21a81..5ca81ca 100644 --- a/repo/fsrepo/fs_repo.c +++ b/repo/fsrepo/fs_repo.c @@ -7,22 +7,26 @@ // #include "fs_repo.h" -#include "../config/config.h" -#include "../../os/utils.h" +#include "ipfs/repo/config/config.h" +#include "ipfs/os/utils.h" /** * private methods */ /** * constructs the FSRepo struct. Basically fills in the FSRepo.path + * Remember: the path must be freed * @param repo_path the path to the repo * @param repo the struct to fill in * @returns false(0) if something bad happened, otherwise true(1) */ int repo_new_fs_repo(char* repo_path, struct FSRepo* repo) { - //TODO: add the root to the path, based on environment variable HOMEDIR - // but for now, just do this - repo->path = repo_path; + // get the user's home directory + char* home_dir = os_utils_get_homedir(); + unsigned long newPathLen = strlen(home_dir) + strlen(repo_path) + 2; // 1 for slash and 1 for end + char* newPath = malloc(sizeof(char) * newPathLen); + os_utils_filepath_join(os_utils_get_homedir(), repo_path, newPath, newPathLen); + repo->path = newPath; return 1; } @@ -46,7 +50,7 @@ int repo_config_is_initialized(char* full_path) { * @param full_path the path to the repo * @returns true(1) if it is initialized, false(0) otherwise. */ -int repo_is_initialized_unsynced(char* full_path) { +int fs_repo_is_initialized_unsynced(char* full_path) { return repo_config_is_initialized(full_path); } @@ -58,7 +62,27 @@ int repo_is_initialized_unsynced(char* full_path) { int repo_check_initialized(char* full_path) { // note the old version of this reported an error if the repo was a .go-ipfs repo (by looking at the path) // this version skips that step - return repo_is_initialized_unsynced(full_path); + return fs_repo_is_initialized_unsynced(full_path); +} + +/*** + * opens the datastore and puts it in the FSRepo struct + * @param repo the FSRepo struct + * @returns 0 on failure, otherwise 1 + */ +int fs_repo_open_config(struct FSRepo* repo) { + //TODO: open config file + //TODO: read into the FSRepo struct + return 0; +} + +/*** + * opens the repo's datastore, and puts a reference to it in the FSRepo struct + * @param repo the FSRepo struct + * @returns 0 on failure, otherwise 1 + */ +int fs_repo_open_datastore(struct FSRepo* repo) { + return 0; } @@ -74,10 +98,30 @@ int repo_check_initialized(char* full_path) { */ int fs_repo_open(char* repo_path, struct FSRepo* repo) { //TODO: lock + // get the path set in the repo struct int retVal = repo_new_fs_repo(repo_path, repo); // check if initialized if (!repo_check_initialized(repo->path)) return 0; + //TODO: lock the file (remember to unlock) + //TODO: check the version, and make sure it is correct + //TODO: make sure the directory is writable + //TODO: open the config + fs_repo_open_config(repo); + //TODO: open the datastore. Note: the config file has the datastore type + fs_repo_open_datastore(repo); + return 0; } +/*** + * checks to see if the repo is initialized + * @param repo_path the path to the repo + * @returns true(1) if it is initialized, otherwise false(0) + */ +int fs_repo_is_initialized(char* repo_path) { + //TODO: lock things up so that someone doesn't try an init or remove while this call is in progress + // don't forget to unlock + return fs_repo_is_initialized_unsynced(repo_path); +} + diff --git a/repo/repo.c b/repo/repo.c index 127f44a..67e0a61 100644 --- a/repo/repo.c +++ b/repo/repo.c @@ -1,6 +1,6 @@ -#include "repo.h" +#include "ipfs/repo/repo.h" -int repo_get_config(struct Config* config) { +int repo_get_config(struct RepoConfig* config) { return 0; } diff --git a/test/cmd/ipfs/test_init.h b/test/cmd/ipfs/test_init.h index d2504df..e96e227 100644 --- a/test/cmd/ipfs/test_init.h +++ b/test/cmd/ipfs/test_init.h @@ -4,8 +4,8 @@ #ifndef __TEST_INIT_H__ #define __TEST_INIT_H__ -#include "../../../cmd/ipfs/init.h" -#include "../../../commands/argument.h" +#include "ipfs/cmd/ipfs/init.h" +#include "ipfs/commands/argument.h" #include #include diff --git a/test/repo/test_repo.h b/test/repo/test_repo.h index 8f1d108..60c6db1 100644 --- a/test/repo/test_repo.h +++ b/test/repo/test_repo.h @@ -1,7 +1,7 @@ #ifndef __TEST_REPO_H__ #define __TEST_REPO_H__ -#include "../../repo/repo.h" +#include "ipfs/repo/repo.h" #include diff --git a/test/repo/test_repo_config.h b/test/repo/test_repo_config.h new file mode 100644 index 0000000..4043eef --- /dev/null +++ b/test/repo/test_repo_config.h @@ -0,0 +1,19 @@ +// +// test_repo_config.h +// c-ipfs +// +// Created by John Jones on 10/31/16. +// Copyright © 2016 JMJAtlanta. All rights reserved. +// + +#ifndef test_repo_config_h +#define test_repo_config_h + +#include "ipfs/repo/config/identity.h" + +int test_repo_config_identity_new() { + struct Identity* identity; + return repo_config_identity_new(identity, 2046); +} + +#endif /* test_repo_config_h */ diff --git a/test/testit.c b/test/testit.c index fe00d5f..c50a1e5 100644 --- a/test/testit.c +++ b/test/testit.c @@ -1,5 +1,6 @@ #include "testit.h" #include "repo/test_repo.h" +#include "repo/test_repo_config.h" #include "cmd/ipfs/test_init.h" int testit(const char* name, int (*func)(void)) { @@ -14,6 +15,7 @@ int testit(const char* name, int (*func)(void)) { int main(int argc, char** argv) { testit("config_repo", test_config_repo); + testit("test_repo_config_identity_new", test_repo_config_identity_new); testit("get_init_command", test_get_init_command); return 1; }