[u/mdw/catacomb] / mpbarrett-exp.h

/* -*-c-*-
 *
 * $Id: mpbarrett-exp.h,v 1.1 2001/06/16 12:58:12 mdw Exp $
 *
 * Exponentiation operations for Barrett reduction
 *
 * (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: mpbarrett-exp.h,v $
 * Revision 1.1  2001/06/16 12:58:12  mdw
 * Parameters for generic exponentiation.
 *
 */

#ifndef CATACOMB_MPBARRETT_EXP_H
#define CATACOMB_MPBARRETT_EXP_H

#ifdef __cplusplus
  extern "C" {
#endif

/*----- Exponentation definitions -----------------------------------------*/

#define EXP_TYPE mp *

#define EXP_COPY(d, x) d = MP_COPY(x)
#define EXP_DROP(x) MP_DROP(x)

#define EXP_MUL(a, x) do {						\
  mp *t = mp_mul(spare, a, x);						\
  spare = a;								\
  a = mpbarrett_reduce(mb, t, t);					\
} while (0)

#define EXP_SQR(a) do {							\
  mp *t = mp_sqr(spare, a);						\
  spare = a;								\
  a = mpbarrett_reduce(mb, t, t);					\
} while (0)

#define EXP_SETMUL(d, x, y) do {					\
  d = mp_mul(MP_NEW, x, y);						\
  d = mpbarrett_reduce(mb, d, d);					\
} while (0)

#define EXP_SETSQR(d, x) do {						\
  d = mp_sqr(MP_NEW, x);						\
  d = mpbarrett_reduce(mb, d, d);					\
} while (0)

#include "exp.h"

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

#ifdef __cplusplus
  }
#endif

#endif
Commit	Line	Data
f7ea7527	1	/* --c--
	2	*
	3	* $Id: mpbarrett-exp.h,v 1.1 2001/06/16 12:58:12 mdw Exp $
	4	*
	5	* Exponentiation operations for Barrett reduction
	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: mpbarrett-exp.h,v $
	33	* Revision 1.1 2001/06/16 12:58:12 mdw
	34	* Parameters for generic exponentiation.
	35	*
	36	*/
	37
	38	#ifndef CATACOMB_MPBARRETT_EXP_H
	39	#define CATACOMB_MPBARRETT_EXP_H
	40
	41	#ifdef __cplusplus
	42	extern "C" {
	43	#endif
	44
	45	/----- Exponentation definitions -----------------------------------------/
	46
	47	#define EXP_TYPE mp *
	48
	49	#define EXP_COPY(d, x) d = MP_COPY(x)
	50	#define EXP_DROP(x) MP_DROP(x)
	51
	52	#define EXP_MUL(a, x) do { \
	53	mp *t = mp_mul(spare, a, x); \
	54	spare = a; \
	55	a = mpbarrett_reduce(mb, t, t); \
	56	} while (0)
	57
	58	#define EXP_SQR(a) do { \
	59	mp *t = mp_sqr(spare, a); \
	60	spare = a; \
	61	a = mpbarrett_reduce(mb, t, t); \
	62	} while (0)
	63
	64	#define EXP_SETMUL(d, x, y) do { \
65	d = mp_mul(MP_NEW, x, y); \
66	d = mpbarrett_reduce(mb, d, d); \
67	} while (0)
68
69	#define EXP_SETSQR(d, x) do { \
70	d = mp_sqr(MP_NEW, x); \
71	d = mpbarrett_reduce(mb, d, d); \
72	} while (0)
73
74	#include "exp.h"
75
76	/----- That's all, folks -------------------------------------------------/
77
78	#ifdef __cplusplus
79	}
80	#endif
81
82	#endif