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      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 
     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