1 /*
2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the OpenSSL license (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 #include <stdio.h>
11 #include "internal/cryptlib.h"
12 
13 #ifndef OPENSSL_NO_CAST
14 # include <openssl/evp.h>
15 # include <openssl/objects.h>
16 # include "crypto/evp.h"
17 # include <openssl/cast.h>
18 
19 static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
20                          const unsigned char *iv, int enc);
21 
22 typedef struct {
23     CAST_KEY ks;
24 } EVP_CAST_KEY;
25 
26 # define data(ctx)       EVP_C_DATA(EVP_CAST_KEY,ctx)
27 
28 IMPLEMENT_BLOCK_CIPHER(cast5, ks, CAST, EVP_CAST_KEY,
29                        NID_cast5, 8, CAST_KEY_LENGTH, 8, 64,
30                        EVP_CIPH_VARIABLE_LENGTH, cast_init_key, NULL,
31                        EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
32 
cast_init_key(EVP_CIPHER_CTX * ctx,const unsigned char * key,const unsigned char * iv,int enc)33 static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
34                          const unsigned char *iv, int enc)
35 {
36     CAST_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
37     return 1;
38 }
39 
40 #endif
41