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comparison src/misc/crypt/crypt_prng_is_valid.c @ 280:59400faa4b44 libtomcrypt-orig libtomcrypt-1.05

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Re-import libtomcrypt 1.05 for cleaner propagating. From crypt-1.05.tar.bz2, SHA1 of 88250202bb51570dc64f7e8f1c943cda9479258f
author Matt Johnston <matt@ucc.asn.au>
date Wed, 08 Mar 2006 12:58:00 +0000
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children d5faf4814ddb
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-1:000000000000 280:59400faa4b44
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, [email protected], http://libtomcrypt.org
10 */
11 #include "tomcrypt.h"
12
13 /**
14 @file crypt_prng_is_valid.c
15 Determine if PRNG is valid, Tom St Denis
16 */
17
18 /*
19 Test if a PRNG index is valid
20 @param idx The index of the PRNG to search for
21 @return CRYPT_OK if valid
22 */
23 int prng_is_valid(int idx)
24 {
25 LTC_MUTEX_LOCK(&ltc_prng_mutex);
26 if (idx < 0 || idx >= TAB_SIZE || prng_descriptor[idx].name == NULL) {
27 LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
28 return CRYPT_INVALID_PRNG;
29 }
30 LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
31 return CRYPT_OK;
32 }
33
34 /* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_prng_is_valid.c,v $ */
35 /* $Revision: 1.4 $ */
36 /* $Date: 2005/06/19 18:00:28 $ */