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48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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#include "tomcrypt.h"
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/**
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@file crypt_find_hash_any.c
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Find a hash, Tom St Denis
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*/
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/**
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Find a hash flexibly. First by name then if not present by digest size
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@param name The name of the hash desired
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@param digestlen The minimum length of the digest size (octets)
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@return >= 0 if found, -1 if not present
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*/int find_hash_any(const char *name, int digestlen)
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{
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int x, y, z;
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LTC_ARGCHK(name != NULL);
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x = find_hash(name);
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if (x != -1) return x;
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LTC_MUTEX_LOCK(<c_hash_mutex);
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y = MAXBLOCKSIZE+1;
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z = -1;
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for (x = 0; x < TAB_SIZE; x++) {
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if (hash_descriptor[x].name == NULL) {
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continue;
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}
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if ((int)hash_descriptor[x].hashsize >= digestlen && (int)hash_descriptor[x].hashsize < y) {
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z = x;
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y = hash_descriptor[x].hashsize;
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}
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}
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LTC_MUTEX_UNLOCK(<c_hash_mutex);
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return z;
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}
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/* ref: HEAD -> master, tag: v1.18.2 */
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/* git commit: 7e7eb695d581782f04b24dc444cbfde86af59853 */
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/* commit time: 2018-07-01 22:49:01 +0200 */
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