1/*
2 * Copyright 1995-2021 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 * BF low level APIs are deprecated for public use, but still ok for internal
12 * use.
13 */
14#include "internal/deprecated.h"
15
16#include <stdio.h>
17#include "internal/cryptlib.h"
18#ifndef OPENSSL_NO_BF
19# include <openssl/evp.h>
20# include "crypto/evp.h"
21# include <openssl/objects.h>
22# include <openssl/blowfish.h>
23# include "evp_local.h"
24
25static int bf_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
26                       const unsigned char *iv, int enc);
27
28typedef struct {
29    BF_KEY ks;
30} EVP_BF_KEY;
31
32# define data(ctx)       EVP_C_DATA(EVP_BF_KEY,ctx)
33
34IMPLEMENT_BLOCK_CIPHER(bf, ks, BF, EVP_BF_KEY, NID_bf, 8, 16, 8, 64,
35                       EVP_CIPH_VARIABLE_LENGTH, bf_init_key, NULL,
36                       EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
37
38static int bf_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
39                       const unsigned char *iv, int enc)
40{
41    int len = EVP_CIPHER_CTX_get_key_length(ctx);
42
43    if (len < 0)
44        return 0;
45    BF_set_key(&data(ctx)->ks, len, key);
46    return 1;
47}
48
49#endif
50