Viewing file:  cipher_seed.c (1.65 KB) -rw-r--r--
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/*
* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* Dispatch functions for Seed cipher modes ecb, cbc, ofb, cfb */
/*
* SEED low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include "cipher_seed.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"
static OSSL_FUNC_cipher_freectx_fn seed_freectx;
static OSSL_FUNC_cipher_dupctx_fn seed_dupctx;
static void seed_freectx(void *vctx)
{
PROV_SEED_CTX *ctx = (PROV_SEED_CTX *)vctx;
ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
OPENSSL_clear_free(ctx, sizeof(*ctx));
}
static void *seed_dupctx(void *ctx)
{
PROV_SEED_CTX *in = (PROV_SEED_CTX *)ctx;
PROV_SEED_CTX *ret;
if (!ossl_prov_is_running())
return NULL;
ret = OPENSSL_malloc(sizeof(*ret));
if (ret == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
return NULL;
}
*ret = *in;
return ret;
}
/* ossl_seed128ecb_functions */
IMPLEMENT_generic_cipher(seed, SEED, ecb, ECB, 0, 128, 128, 0, block)
/* ossl_seed128cbc_functions */
IMPLEMENT_generic_cipher(seed, SEED, cbc, CBC, 0, 128, 128, 128, block)
/* ossl_seed128ofb128_functions */
IMPLEMENT_generic_cipher(seed, SEED, ofb128, OFB, 0, 128, 8, 128, stream)
/* ossl_seed128cfb128_functions */
IMPLEMENT_generic_cipher(seed, SEED, cfb128, CFB, 0, 128, 8, 128, stream)
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