2016-07-31 14:42:29 +00:00
|
|
|
#include <stdlib.h>
|
2016-07-26 11:00:54 +00:00
|
|
|
#include "mh/hashes.h"
|
2016-07-31 14:42:29 +00:00
|
|
|
|
2016-07-30 10:39:26 +00:00
|
|
|
#include "mh/errors.h"
|
2016-07-31 14:42:29 +00:00
|
|
|
#include "mh/assert.h"
|
|
|
|
|
|
|
|
|
|
|
|
static const struct hash_name {
|
|
|
|
int hash;
|
|
|
|
const char *name;
|
|
|
|
} hash_names[] = {
|
|
|
|
{ MH_H_SHA1, "sha1" },
|
|
|
|
{ MH_H_SHA2_256, "sha2-256" },
|
|
|
|
{ MH_H_SHA2_512, "sha2-512" },
|
|
|
|
{ MH_H_SHA3_512, "sha3-512" },
|
|
|
|
{ MH_H_SHA3_384, "sha3-384" },
|
|
|
|
{ MH_H_SHA3_256, "sha3-256" },
|
|
|
|
{ MH_H_SHA3_224, "sha3-224" },
|
|
|
|
{ MH_H_SHAKE_128, "shake-128" },
|
|
|
|
{ MH_H_SHAKE_256, "shake-256" },
|
|
|
|
{ MH_H_BLAKE2B, "blake2b" },
|
|
|
|
{ MH_H_BLAKE2S, "blake2s" }
|
|
|
|
};
|
|
|
|
|
|
|
|
mh_assert_static(sizeof(hash_names) / sizeof(hash_names[0]) == MH_H_COUNT);
|
|
|
|
|
|
|
|
const char *mh_hash_name(int hash) {
|
|
|
|
unsigned int i = 0;
|
|
|
|
for (; i < sizeof(mh_all_hashes) / sizeof(mh_all_hashes[0]); i++) {
|
|
|
|
if (hash_names[i].hash == hash)
|
|
|
|
return hash_names[i].name;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
2016-07-26 15:53:52 +00:00
|
|
|
|
|
|
|
|
|
|
|
static const int hash_lengths[] = {
|
|
|
|
20, // sha1
|
|
|
|
32, // sha2-256
|
|
|
|
64, // sha2-512
|
|
|
|
64, // sha3-512
|
|
|
|
45, // sha3-364
|
|
|
|
32, // sha3-256
|
|
|
|
28, // sha3-224
|
|
|
|
16, // shake-128
|
|
|
|
32, // shake-256
|
2016-07-30 10:39:26 +00:00
|
|
|
64, // blake2b
|
|
|
|
32, // blake2s
|
2016-07-26 15:53:52 +00:00
|
|
|
};
|
|
|
|
|
2016-07-31 14:42:29 +00:00
|
|
|
mh_assert_static(sizeof(hash_lengths)/sizeof(hash_lengths[0]) == MH_H_COUNT);
|
2016-07-26 15:53:52 +00:00
|
|
|
|
2016-07-31 14:42:29 +00:00
|
|
|
int mh_hash_default_length(int hash) {
|
2016-07-26 15:53:52 +00:00
|
|
|
if (hash < 0 || hash >= MH_H_COUNT)
|
2016-07-31 14:42:29 +00:00
|
|
|
return MH_E_UNKNOWN_CODE;
|
2016-07-26 15:53:52 +00:00
|
|
|
|
2016-07-30 10:39:26 +00:00
|
|
|
return hash_lengths[hash];
|
2016-07-26 15:53:52 +00:00
|
|
|
}
|
|
|
|
|
2016-07-31 14:42:29 +00:00
|
|
|
int mh_hash_length(const unsigned char multihash[], int len, int *hash_length);
|
2016-07-26 15:53:52 +00:00
|
|
|
|
|
|
|
|
2016-07-31 14:42:29 +00:00
|
|
|
int mh_hash_function(const unsigned char multihash[], int len, int *hash);
|