/*

 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the Apache License 2.0 (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

/*

 * CAST low level APIs are deprecated for public use, but still ok for

 * internal use.

 */

#include "internal/deprecated.h"

#include <stdio.h>

#include "internal/cryptlib.h"

#ifndef OPENSSL_NO_CAST

# include <openssl/evp.h>

# include <openssl/objects.h>

# include "crypto/evp.h"

# include <openssl/cast.h>

# include "evp_local.h"

static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,

                         const unsigned char *iv, int enc);

typedef struct {

    CAST_KEY ks;

} EVP_CAST_KEY;

# define data(ctx)       EVP_C_DATA(EVP_CAST_KEY,ctx)

IMPLEMENT_BLOCK_CIPHER(cast5, ks, CAST, EVP_CAST_KEY,

                       NID_cast5, 8, CAST_KEY_LENGTH, 8, 64,

                       EVP_CIPH_VARIABLE_LENGTH, cast_init_key, NULL,

                       EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)

static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,

                         const unsigned char *iv, int enc)

{

    int keylen = EVP_CIPHER_CTX_get_key_length(ctx);

    if (keylen <= 0)

        return 0;

    CAST_set_key(&data(ctx)->ks, keylen, key);

    return 1;

}

#endif