1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
6 * The library is free for all purposes without any express
9 * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
14 @file crypt_cipher_is_valid.c
15 Determine if cipher is valid, Tom St Denis
19 Test if a cipher index is valid
20 @param idx The index of the cipher to search for
21 @return CRYPT_OK if valid
23 int cipher_is_valid(int idx)
25 LTC_MUTEX_LOCK(<c_cipher_mutex);
26 if (idx < 0 || idx >= TAB_SIZE || cipher_descriptor[idx].name == NULL) {
27 LTC_MUTEX_UNLOCK(<c_cipher_mutex);
28 return CRYPT_INVALID_CIPHER;
30 LTC_MUTEX_UNLOCK(<c_cipher_mutex);
34 /* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_cipher_is_valid.c,v $ */
35 /* $Revision: 1.5 $ */
36 /* $Date: 2006/03/31 14:15:35 $ */