33 lines
831 B
C
33 lines
831 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_unregister_prng.c
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Unregister a PRNG, Tom St Denis
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*/
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/**
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Unregister a PRNG from the descriptor table
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@param prng The PRNG descriptor to remove
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@return CRYPT_OK on success
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*/
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int unregister_prng(const struct ltc_prng_descriptor *prng)
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{
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int x;
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LTC_ARGCHK(prng != NULL);
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/* is it already registered? */
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LTC_MUTEX_LOCK(<c_prng_mutex);
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for (x = 0; x < TAB_SIZE; x++) {
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if (XMEMCMP(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) == 0) {
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prng_descriptor[x].name = NULL;
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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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}
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LTC_MUTEX_UNLOCK(<c_prng_mutex);
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return CRYPT_ERROR;
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}
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