/* 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@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" /** @file crypt_cipher_is_valid.c Determine if cipher is valid, Tom St Denis */ /* Test if a cipher index is valid @param idx The index of the cipher to search for @return CRYPT_OK if valid */ int cipher_is_valid(int idx) { LTC_MUTEX_LOCK(<c_cipher_mutex); if (idx < 0 || idx >= TAB_SIZE || cipher_descriptor[idx].name == NULL) { LTC_MUTEX_UNLOCK(<c_cipher_mutex); return CRYPT_INVALID_CIPHER; } LTC_MUTEX_UNLOCK(<c_cipher_mutex); return CRYPT_OK; } /* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_cipher_is_valid.c,v $ */ /* $Revision: 1.5 $ */ /* $Date: 2006/03/31 14:15:35 $ */