[u/mdw/catacomb] / rijndael-base.h

/* -*-c-*-
 *
 * $Id: rijndael-base.h,v 1.1 2001/05/07 17:31:37 mdw Exp $
 *
 * Internal header for Rijndael implementation
 *
 * (c) 2001 Straylight/Edgeware
 */

/*----- Licensing notice --------------------------------------------------* 
 *
 * This file is part of Catacomb.
 *
 * Catacomb is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Library General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * Catacomb 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 Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with Catacomb; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 */

/*----- Revision history --------------------------------------------------* 
 *
 * $Log: rijndael-base.h,v $
 * Revision 1.1  2001/05/07 17:31:37  mdw
 * Centralize Rijndael tables and key scheduling.
 *
 */

#ifndef CATACOMB_RIJNDAEL_BASE_H
#define CATACOMB_RIJNDAEL_BASE_H

#ifdef __cplusplus
  extern "C" {
#endif

/*----- Header files ------------------------------------------------------*/

#include <mLib/bits.h>

/*----- Constant tables ---------------------------------------------------*/

extern const octet rijndael_s[256];
extern const octet rijndael_si[256];
extern const uint32 rijndael_t[4][256];
extern const uint32 rijndael_ti[4][256];
extern const uint32 rijndael_u[4][256];
extern const octet rijndael_rcon[];

#define S rijndael_s
#define SI rijndael_si
#define T rijndael_t
#define TI rijndael_ti
#define U rijndael_u
#define RCON rijndael_rcon

/*----- Handy macros ------------------------------------------------------*/

#define SUB(s, a, b, c, d)						\
  (s[U8((a) >>  0)] <<  0 | s[U8((b) >>  8)] <<  8 |			\
   s[U8((c) >> 16)] << 16 | s[U8((d) >> 24)] << 24)

#define MIX(t, a, b, c, d)						\
  (t[0][U8((a) >>  0)] ^ t[1][U8((b) >>  8)] ^				\
   t[2][U8((c) >> 16)] ^ t[3][U8((d) >> 24)])

/*----- That's all, folks -------------------------------------------------*/

#ifdef __cplusplus
  }
#endif

#endif
Commit	Line	Data
8b3d7f30	1	/* --c--
	2	*
	3	* $Id: rijndael-base.h,v 1.1 2001/05/07 17:31:37 mdw Exp $
	4	*
	5	* Internal header for Rijndael implementation
	6	*
	7	* (c) 2001 Straylight/Edgeware
	8	*/
	9
	10	/----- Licensing notice --------------------------------------------------
	11	*
	12	* This file is part of Catacomb.
	13	*
	14	* Catacomb is free software; you can redistribute it and/or modify
	15	* it under the terms of the GNU Library General Public License as
	16	* published by the Free Software Foundation; either version 2 of the
	17	* License, or (at your option) any later version.
	18	*
	19	* Catacomb is distributed in the hope that it will be useful,
	20	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	21	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	22	* GNU Library General Public License for more details.
	23	*
	24	* You should have received a copy of the GNU Library General Public
	25	* License along with Catacomb; if not, write to the Free
	26	* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
	27	* MA 02111-1307, USA.
	28	*/
	29
	30	/----- Revision history --------------------------------------------------
	31	*
	32	* $Log: rijndael-base.h,v $
	33	* Revision 1.1 2001/05/07 17:31:37 mdw
	34	* Centralize Rijndael tables and key scheduling.
	35	*
	36	*/
	37
	38	#ifndef CATACOMB_RIJNDAEL_BASE_H
	39	#define CATACOMB_RIJNDAEL_BASE_H
	40
	41	#ifdef __cplusplus
	42	extern "C" {
	43	#endif
	44
	45	/----- Header files ------------------------------------------------------/
	46
	47	#include <mLib/bits.h>
	48
	49	/----- Constant tables ---------------------------------------------------/
	50
	51	extern const octet rijndael_s[256];
	52	extern const octet rijndael_si[256];
	53	extern const uint32 rijndael_t[4][256];
	54	extern const uint32 rijndael_ti[4][256];
	55	extern const uint32 rijndael_u[4][256];
	56	extern const octet rijndael_rcon[];
	57
	58	#define S rijndael_s
	59	#define SI rijndael_si
	60	#define T rijndael_t
	61	#define TI rijndael_ti
	62	#define U rijndael_u
	63	#define RCON rijndael_rcon
	64
65	/----- Handy macros ------------------------------------------------------/
66
67	#define SUB(s, a, b, c, d) \
68	(s[U8((a) >> 0)] << 0 \| s[U8((b) >> 8)] << 8 \| \
69	s[U8((c) >> 16)] << 16 \| s[U8((d) >> 24)] << 24)
70
71	#define MIX(t, a, b, c, d) \
72	(t[0][U8((a) >> 0)] ^ t[1][U8((b) >> 8)] ^ \
73	t[2][U8((c) >> 16)] ^ t[3][U8((d) >> 24)])
74
75	/----- That's all, folks -------------------------------------------------/
76
77	#ifdef __cplusplus
78	}
79	#endif
80
81	#endif