/* crypto/cast/cast.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *   notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *   must display the following acknowledgement:
 *   "This product includes cryptographic software written by
 *    Eric Young (eay@cryptsoft.com)"
 *   The word 'cryptographic' can be left out if the rouines from the library
 *   being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *   the apps directory (application code) you must include an acknowledgement:
 *   "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

module deimos.openssl.cast_;

import deimos.openssl._d_util;

extern (C):
nothrow:

public import deimos.openssl.opensslconf;

version (OPENSSL_NO_CAST) {
  static assert(false, "CAST is disabled.");
}

enum CAST_ENCRYPT = 1;
enum CAST_DECRYPT = 0;

alias uint CAST_LONG;

enum CAST_BLOCK = 8;
enum CAST_KEY_LENGTH = 16;

struct cast_key_st {
	CAST_LONG data[32];
	int short_key;	/* Use reduced rounds for short key */
	}
alias cast_key_st CAST_KEY;


void CAST_set_key(CAST_KEY* key, int len, const(ubyte)* data);
void CAST_ecb_encrypt(const(ubyte)* in_, ubyte* out_, const(CAST_KEY)* key,
		      int enc);
void CAST_encrypt(CAST_LONG* data, const(CAST_KEY)* key);
void CAST_decrypt(CAST_LONG* data, const(CAST_KEY)* key);
void CAST_cbc_encrypt(const(ubyte)* in_, ubyte* out_, c_long length,
		      const(CAST_KEY)* ks, ubyte* iv, int enc);
void CAST_cfb64_encrypt(const(ubyte)* in_, ubyte* out_,
			c_long length, const(CAST_KEY)* schedule, ubyte* ivec,
			int* num, int enc);
void CAST_ofb64_encrypt(const(ubyte)* in_, ubyte* out_,
			c_long length, const(CAST_KEY)* schedule, ubyte* ivec,
			int* num);
