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62867571 | 1 | /* |
3c2bdd7d | 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. |
58964a49 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
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 | |
58964a49 RE |
8 | */ |
9 | ||
0ae5d4d6 MC |
10 | /* |
11 | * CAST low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
58964a49 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
fb105909 RL |
18 | |
19 | #ifndef OPENSSL_NO_CAST | |
0f113f3e MC |
20 | # include <openssl/evp.h> |
21 | # include <openssl/objects.h> | |
25f2138b | 22 | # include "crypto/evp.h" |
0f113f3e | 23 | # include <openssl/cast.h> |
2f5c405a | 24 | # include "evp_local.h" |
58964a49 | 25 | |
1921eaad | 26 | static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e MC |
27 | const unsigned char *iv, int enc); |
28 | ||
29 | typedef struct { | |
30 | CAST_KEY ks; | |
31 | } EVP_CAST_KEY; | |
58964a49 | 32 | |
0f113f3e | 33 | # define data(ctx) EVP_C_DATA(EVP_CAST_KEY,ctx) |
dbad1690 | 34 | |
0f113f3e MC |
35 | IMPLEMENT_BLOCK_CIPHER(cast5, ks, CAST, EVP_CAST_KEY, |
36 | NID_cast5, 8, CAST_KEY_LENGTH, 8, 64, | |
37 | EVP_CIPH_VARIABLE_LENGTH, cast_init_key, NULL, | |
38 | EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL) | |
dbad1690 | 39 | |
1921eaad | 40 | static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
0f113f3e MC |
41 | const unsigned char *iv, int enc) |
42 | { | |
ed576acd | 43 | int keylen = EVP_CIPHER_CTX_get_key_length(ctx); |
1002bb9f P |
44 | |
45 | if (keylen <= 0) | |
46 | return 0; | |
47 | CAST_set_key(&data(ctx)->ks, keylen, key); | |
0f113f3e MC |
48 | return 1; |
49 | } | |
58964a49 | 50 | |
58964a49 | 51 | #endif |