/*

 * Copyright 2007-2020 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

 */

/*

 * SEED low level APIs are deprecated for public use, but still ok for

 * internal use.

 */

#include "internal/deprecated.h"

#include <openssl/opensslconf.h>

#include <openssl/evp.h>

#include <openssl/err.h>

#include <string.h>

#include <assert.h>

#include <openssl/seed.h>

#include "crypto/evp.h"

#include "evp_local.h"

static int seed_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,

                         const unsigned char *iv, int enc);

typedef struct {

    SEED_KEY_SCHEDULE ks;

} EVP_SEED_KEY;

IMPLEMENT_BLOCK_CIPHER(seed, ks, SEED, EVP_SEED_KEY, NID_seed,

                       16, 16, 16, 128, EVP_CIPH_FLAG_DEFAULT_ASN1,

                       seed_init_key, 0, 0, 0, 0)

static int seed_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,

                         const unsigned char *iv, int enc)

{

    SEED_set_key(key, &EVP_C_DATA(EVP_SEED_KEY, ctx)->ks);

    return 1;

}