tomcrypt/src/misc/crypt/crypt_find_hash_oid.c

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2005-08-01 16:36:47 +00:00
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
2006-04-06 19:48:32 +00:00
* Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
2005-08-01 16:36:47 +00:00
*/
#include "tomcrypt.h"
/**
@file crypt_find_hash_oid.c
Find a hash, Tom St Denis
*/
int find_hash_oid(const unsigned long *ID, unsigned long IDlen)
{
int x;
LTC_ARGCHK(ID != NULL);
LTC_MUTEX_LOCK(&ltc_hash_mutex);
for (x = 0; x < TAB_SIZE; x++) {
if (hash_descriptor[x].name != NULL && hash_descriptor[x].OIDlen == IDlen && !memcmp(hash_descriptor[x].OID, ID, sizeof(unsigned long) * IDlen)) {
LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
return x;
}
}
LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
return -1;
}
/* $Source$ */
/* $Revision$ */
/* $Date$ */