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annotate libtomcrypt/src/misc/crypt/crypt_prng_is_valid.c @ 1646:6d1bbe7d5fa5 DROPBEAR_2019.77

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2019.77
author Matt Johnston <matt@ucc.asn.au>
date Sat, 23 Mar 2019 21:46:29 +0800
parents 6dba84798cd5
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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11 /**
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12 @file crypt_prng_is_valid.c
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13 Determine if PRNG is valid, Tom St Denis
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14 */
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16 /*
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17 Test if a PRNG index is valid
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18 @param idx The index of the PRNG to search for
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19 @return CRYPT_OK if valid
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20 */
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21 int prng_is_valid(int idx)
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22 {
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23 LTC_MUTEX_LOCK(&ltc_prng_mutex);
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24 if (idx < 0 || idx >= TAB_SIZE || prng_descriptor[idx].name == NULL) {
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25 LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
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26 return CRYPT_INVALID_PRNG;
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27 }
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28 LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
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29 return CRYPT_OK;
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30 }
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31
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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32 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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33 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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34 /* commit time: $Format:%ai$ */