c-multihash/include/mh/hashes.h
Jakub Sztandera 171bddef0a change how hashes are defined from enum to define
this way the mapping between hashcodes and hash definitions isn't needed
also it simplfies handling, testing  and allows to return error with
the hash code
2016-07-31 15:43:43 +01:00

46 lines
975 B
C

#include "errors.h"
// definitions of hash functions
#define MH_H_SHA1 0x11
#define MH_H_SHA2_256 0x12
#define MH_H_SHA2_512 0x13
#define MH_H_SHA3_512 0x14
#define MH_H_SHA3_384 0x15
#define MH_H_SHA3_256 0x16
#define MH_H_SHA3_224 0x17
#define MH_H_SHAKE_128 0x18
#define MH_H_SHAKE_256 0x19
#define MH_H_BLAKE2B 0x40
#define MH_H_BLAKE2S 0x41
// list of avaliable hash functions.
static const int mh_all_hashes[] = {
MH_H_SHA1,
MH_H_SHA2_256,
MH_H_SHA2_512,
MH_H_SHA3_512,
MH_H_SHA3_384,
MH_H_SHA3_256,
MH_H_SHA3_224,
MH_H_SHAKE_128,
MH_H_SHAKE_256,
MH_H_BLAKE2B,
MH_H_BLAKE2S,
};
#define MH_H_COUNT (int)(sizeof(mh_all_hashes) / sizeof(mh_all_hashes[0]))
const char *mh_hash_name(int hash);
// returns length in bytes or if returns is < 0 it is an error
int mh_hash_default_length(int hash);
int mh_hash_length(const unsigned char multihash[], int len, int *hash_length);
int mh_hash_function(const unsigned char multihash[], int len, int *hash);