25 lines
616 B
C
25 lines
616 B
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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#include "tomcrypt_private.h"
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/**
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@file crypt_prng_is_valid.c
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Determine if PRNG is valid, Tom St Denis
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*/
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/*
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Test if a PRNG index is valid
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@param idx The index of the PRNG to search for
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@return CRYPT_OK if valid
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*/
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int prng_is_valid(int idx)
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{
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LTC_MUTEX_LOCK(<c_prng_mutex);
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if (idx < 0 || idx >= TAB_SIZE || prng_descriptor[idx].name == NULL) {
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LTC_MUTEX_UNLOCK(<c_prng_mutex);
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return CRYPT_INVALID_PRNG;
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}
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LTC_MUTEX_UNLOCK(<c_prng_mutex);
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return CRYPT_OK;
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}
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