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      1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
      2  *
      3  * LibTomCrypt is a library that provides various cryptographic
      4  * algorithms in a highly modular and flexible manner.
      5  *
      6  * The library is free for all purposes without any express
      7  * guarantee it works.
      8  *
      9  * Tom St Denis, tomstdenis (at) gmail.com, http://libtomcrypt.com
     10  */
     11 #include "tomcrypt.h"
     12 
     13 /**
     14   @file crypt_find_hash_oid.c
     15   Find a hash, Tom St Denis
     16 */
     17 
     18 int find_hash_oid(const unsigned long *ID, unsigned long IDlen)
     19 {
     20    int x;
     21    LTC_ARGCHK(ID != NULL);
     22    LTC_MUTEX_LOCK(&ltc_hash_mutex);
     23    for (x = 0; x < TAB_SIZE; x++) {
     24        if (hash_descriptor[x].name != NULL && hash_descriptor[x].OIDlen == IDlen && !XMEMCMP(hash_descriptor[x].OID, ID, sizeof(unsigned long) * IDlen)) {
     25           LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
     26           return x;
     27        }
     28    }
     29    LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
     30    return -1;
     31 }
     32 
     33 /* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_hash_oid.c,v $ */
     34 /* $Revision: 1.4 $ */
     35 /* $Date: 2006/11/01 09:28:17 $ */
     36