include/beecrypt/blowfish.h

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/*
 * Copyright (c) 1999, 2000, 2002 X-Way Rights BV
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef _BLOWFISH_H
#define _BLOWFISH_H

#include "beecrypt/beecrypt.h"
#include "beecrypt/blowfishopt.h"

#define BLOWFISHROUNDS  16
#define BLOWFISHPSIZE   (BLOWFISHROUNDS+2)

#ifdef __cplusplus
struct BEECRYPTAPI blowfishParam
#else
struct _blowfishParam
#endif
{
    uint32_t p[BLOWFISHPSIZE];
    uint32_t s[1024];
    uint32_t fdback[2];
};

#ifndef __cplusplus
typedef struct _blowfishParam blowfishParam;
#endif

#ifdef __cplusplus
extern "C" {
#endif

extern const BEECRYPTAPI blockCipher blowfish;

BEECRYPTAPI
int     blowfishSetup   (blowfishParam*, const byte*, size_t, cipherOperation);

BEECRYPTAPI
int     blowfishSetIV   (blowfishParam*, const byte* iv);

BEECRYPTAPI
int     blowfishSetCTR  (blowfishParam*, const byte* nivz, size_t counter);

BEECRYPTAPI
int     blowfishEncrypt (blowfishParam*, uint32_t*, const uint32_t*);

BEECRYPTAPI
int     blowfishDecrypt (blowfishParam*, uint32_t*, const uint32_t*);

BEECRYPTAPI
uint32_t*   blowfishFeedback(blowfishParam*);

#ifdef __cplusplus
}
#endif

#endif

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