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/* des3.h
*
* Copyright (C) 2006-2011 Sawtooth Consulting Ltd.
*
* This file is part of CyaSSL.
*
* CyaSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* CyaSSL 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef NO_DES3
#ifndef CTAO_CRYPT_DES3_H
#define CTAO_CRYPT_DES3_H
#include "types.h"
#ifdef __cplusplus
extern "C" {
#endif
enum {
DES_BLOCK_SIZE = 8,
DES_KS_SIZE = 32,
DES_ENCRYPTION = 0,
DES_DECRYPTION = 1,
};
/* DES encryption and decryption */
typedef struct Des {
word32 key[DES_KS_SIZE];
word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
} Des;
/* DES3 encryption and decryption */
typedef struct Des3 {
word32 key[3][DES_KS_SIZE];
word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
} Des3;
void Des_SetKey(Des* des, const byte* key, const byte* iv, int dir);
void Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz);
void Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz);
void Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir);
void Des3_CbcEncrypt(Des3* des, byte* out, const byte* in, word32 sz);
void Des3_CbcDecrypt(Des3* des, byte* out, const byte* in, word32 sz);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* NO_DES3 */
#endif /* CTAO_CRYPT_DES3_H */
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