tomcrypt/src/misc/crypt/crypt_unregister_hash.c
2010-06-16 12:38:26 +02:00

38 lines
934 B
C

/* 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.
*
* Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
*/
#include "tomcrypt.h"
/**
@file crypt_unregister_hash.c
Unregister a hash, Tom St Denis
*/
/**
Unregister a hash from the descriptor table
@param hash The hash descriptor to remove
@return CRYPT_OK on success
*/
int unregister_hash(const struct ltc_hash_descriptor *hash)
{
int x;
LTC_ARGCHK(hash != NULL);
/* is it already registered? */
for (x = 0; x < TAB_SIZE; x++) {
if (memcmp(&hash_descriptor[x], hash, sizeof(struct ltc_hash_descriptor)) == 0) {
hash_descriptor[x].name = NULL;
return CRYPT_OK;
}
}
return CRYPT_ERROR;
}