66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#include <stdlib.h>
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#include "mh/hashes.h"
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#include "mh/errors.h"
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#include "mh/assert.h"
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static const struct hash_name {
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int hash;
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const char *name;
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} hash_names[] = {
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{ MH_H_SHA1, "sha1" },
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{ MH_H_SHA2_256, "sha2-256" },
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{ MH_H_SHA2_512, "sha2-512" },
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{ MH_H_SHA3_512, "sha3-512" },
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{ MH_H_SHA3_384, "sha3-384" },
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{ MH_H_SHA3_256, "sha3-256" },
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{ MH_H_SHA3_224, "sha3-224" },
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{ MH_H_SHAKE_128, "shake-128" },
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{ MH_H_SHAKE_256, "shake-256" },
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{ MH_H_BLAKE2B, "blake2b" },
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{ MH_H_BLAKE2S, "blake2s" }
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};
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mh_assert_static(sizeof(hash_names) / sizeof(hash_names[0]) == MH_H_COUNT);
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const char *mh_hash_name(int hash) {
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unsigned int i = 0;
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for (; i < sizeof(mh_all_hashes) / sizeof(mh_all_hashes[0]); i++) {
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if (hash_names[i].hash == hash)
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return hash_names[i].name;
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}
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return NULL;
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}
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static const int hash_lengths[] = {
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20, // sha1
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32, // sha2-256
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64, // sha2-512
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64, // sha3-512
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45, // sha3-364
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32, // sha3-256
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28, // sha3-224
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16, // shake-128
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32, // shake-256
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64, // blake2b
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32, // blake2s
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};
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mh_assert_static(sizeof(hash_lengths)/sizeof(hash_lengths[0]) == MH_H_COUNT);
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int mh_hash_default_length(int hash) {
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if (hash < 0 || hash >= MH_H_COUNT)
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return MH_E_UNKNOWN_CODE;
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return hash_lengths[hash];
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}
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int mh_hash_length(const unsigned char multihash[], int len, int *hash_length);
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int mh_hash_function(const unsigned char multihash[], int len, int *hash);
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