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 #include "tomcrypt.h" 10 11 /** 12 @file crypt_cipher_is_valid.c 13 Determine if cipher is valid, Tom St Denis 14 */ 15 16 /* 17 Test if a cipher index is valid 18 @param idx The index of the cipher to search for 19 @return CRYPT_OK if valid 20 */ cipher_is_valid(int idx)21int cipher_is_valid(int idx) 22 { 23 LTC_MUTEX_LOCK(<c_cipher_mutex); 24 if (idx < 0 || idx >= TAB_SIZE || cipher_descriptor[idx].name == NULL) { 25 LTC_MUTEX_UNLOCK(<c_cipher_mutex); 26 return CRYPT_INVALID_CIPHER; 27 } 28 LTC_MUTEX_UNLOCK(<c_cipher_mutex); 29 return CRYPT_OK; 30 } 31 32 /* ref: HEAD -> master, tag: v1.18.2 */ 33 /* git commit: 7e7eb695d581782f04b24dc444cbfde86af59853 */ 34 /* commit time: 2018-07-01 22:49:01 +0200 */ 35