include/beecrypt/aes.h

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/*
 * Copyright (c) 2002, 2003 Bob Deblier
 *
 * 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 _AES_H
#define _AES_H

#include "beecrypt/beecrypt.h"
#include "beecrypt/aesopt.h"

#ifdef __cplusplus
struct BEECRYPTAPI aesParam
#else
struct _aesParam
#endif
{
    uint32_t k[64];
    uint32_t nr;
    uint32_t fdback[4];
};

#ifndef __cplusplus
typedef struct _aesParam aesParam;
#endif

#ifdef __cplusplus
extern "C" {
#endif

extern const BEECRYPTAPI blockCipher aes;

BEECRYPTAPI
int         aesSetup   (aesParam* ap, const byte* key, size_t keybits, cipherOperation op);

BEECRYPTAPI
int         aesSetIV   (aesParam* ap, const byte* iv);

BEECRYPTAPI
int         aesSetCTR  (aesParam* ap, const byte* nivz, size_t counter);

BEECRYPTAPI
int         aesEncrypt (aesParam* ap, uint32_t* dst, const uint32_t* src);

BEECRYPTAPI
int         aesDecrypt (aesParam* ap, uint32_t* dst, const uint32_t* src);

BEECRYPTAPI
uint32_t*   aesFeedback(aesParam* ap);

#ifdef __cplusplus
}
#endif

#endif

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