50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
#pragma once
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#include "libp2p/crypto/rsa.h"
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#include "libp2p/conn/session.h"
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struct Exchange {
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unsigned char* epubkey;
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size_t epubkey_size;
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unsigned char* signature;
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size_t signature_size;
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};
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struct Exchange* libp2p_secio_exchange_new();
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void libp2p_secio_exchange_free(struct Exchange* in);
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/**
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* retrieves the approximate size of an encoded version of the passed in struct
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* @param in the struct to look at
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* @reutrns the size of buffer needed
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*/
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size_t libp2p_secio_exchange_protobuf_encode_size(struct Exchange* in);
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/**
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* Encode the struct Exchange in protobuf format
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* @param in the struct to be encoded
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* @param buffer where to put the results
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* @param max_buffer_length the max to write
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* @param bytes_written how many bytes were written to the buffer
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* @returns true(1) on success, otherwise false(0)
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*/
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int libp2p_secio_exchange_protobuf_encode(struct Exchange* in, unsigned char* buffer, size_t max_buffer_length, size_t* bytes_written);
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/**
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* Turns a protobuf array into an Exchange struct
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* @param buffer the protobuf array
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* @param max_buffer_length the length of the buffer
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* @param out a pointer to the new struct Exchange NOTE: this method allocates memory
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* @returns true(1) on success, otherwise false(0)
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*/
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int libp2p_secio_exchange_protobuf_decode(unsigned char* buffer, size_t max_buffer_length, struct Exchange** out);
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/***
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* Build an exchange object based on passed in values
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* @param local_session the SessionContext
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* @param private_key the local RsaPrivateKey
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* @param bytes_to_be_signed the bytes that should be signed
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* @param bytes_size the length of bytes_to_be_signed
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* @returns an Exchange object or NULL
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*/
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struct Exchange* libp2p_secio_exchange_build(struct SessionContext* local_session, struct RsaPrivateKey* private_key, const char* bytes_to_be_signed, size_t bytes_size);
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