1/*
2 * Copyright 2007-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/*
11 * SEED low level APIs are deprecated for public use, but still ok for
12 * internal use.
13 */
14#include "internal/deprecated.h"
15
16#include <openssl/opensslconf.h>
17#include <openssl/evp.h>
18#include <openssl/err.h>
19#include <string.h>
20#include <assert.h>
21#include <openssl/seed.h>
22#include "crypto/evp.h"
23#include "evp_local.h"
24
25static int seed_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
26                         const unsigned char *iv, int enc);
27
28typedef struct {
29    SEED_KEY_SCHEDULE ks;
30} EVP_SEED_KEY;
31
32IMPLEMENT_BLOCK_CIPHER(seed, ks, SEED, EVP_SEED_KEY, NID_seed,
33                       16, 16, 16, 128, EVP_CIPH_FLAG_DEFAULT_ASN1,
34                       seed_init_key, 0, 0, 0, 0)
35
36static int seed_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
37                         const unsigned char *iv, int enc)
38{
39    SEED_set_key(key, &EVP_C_DATA(EVP_SEED_KEY,ctx)->ks);
40    return 1;
41}
42