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