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@gmail.com, http://libtomcrypt.com
10 */
11#include "tomcrypt.h"
12
13/**
14  @file crypt_find_cipher_id.c
15  Find cipher by ID, Tom St Denis
16*/
17
18/**
19   Find a cipher by ID number
20   @param ID    The ID (not same as index) of the cipher to find
21   @return >= 0 if found, -1 if not present
22*/
23int find_cipher_id(unsigned char ID)
24{
25   int x;
26   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
27   for (x = 0; x < TAB_SIZE; x++) {
28       if (cipher_descriptor[x].ID == ID) {
29          x = (cipher_descriptor[x].name == NULL) ? -1 : x;
30          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
31          return x;
32       }
33   }
34   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
35   return -1;
36}
37
38/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_cipher_id.c,v $ */
39/* $Revision: 1.5 $ */
40/* $Date: 2006/03/31 14:15:35 $ */
41