[u/mdw/catacomb] / ectab.h

/* -*-c-*-
 *
 * $Id: ectab.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
 *
 * Table of standard elliptic curves
 *
 * (c) 2004 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.
 */

#ifndef CATACOMB_ECTAB_H
#define CATACOMB_ECTAB_H

#ifdef __cplusplus
  extern "C" {
#endif

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

#include "ec.h"

/*----- Data structures ---------------------------------------------------*/

typedef struct ecdata {
  unsigned ftag;			/* The kind of curve this is */
  mp p, beta;				/* Modulus, and conversion magic */
  mp a, b;				/* Elliptic curve parameters */
  mp r;					/* Order of common point %$g$% */
  mp h;					/* Cofactor %$h = \#E/r$% */
  mp gx, gy;				/* Common point */
} ecdata;

enum {
  FTAG_PRIME,				/* Prime but not nice */
  FTAG_NICEPRIME,			/* Nice prime field */
  FTAG_BINPOLY,				/* Binary field, poly basis */
  FTAG_BINNORM				/* Binary field, normal basis */
};

typedef struct ecentry {
  const char *name;
  ecdata *data;
} ecentry;

/*----- Global variables --------------------------------------------------*/

extern const ecentry ectab[];

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

#ifdef __cplusplus
  }
#endif

#endif
Commit	Line	Data
432c4e18	1	/* --c--
432c4e18	2	*
b817bfc6	3	* $Id: ectab.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
432c4e18	4	*
34e4f738	5	* Table of standard elliptic curves
432c4e18	6	*
	7	* (c) 2004 Straylight/Edgeware
	8	*/
	9
45c0fd36	10	/----- Licensing notice --------------------------------------------------
432c4e18	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.
45c0fd36	18	*
432c4e18	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.
45c0fd36	23	*
432c4e18	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
432c4e18	30	#ifndef CATACOMB_ECTAB_H
	31	#define CATACOMB_ECTAB_H
	32
	33	#ifdef __cplusplus
	34	extern "C" {
	35	#endif
	36
	37	/----- Header files ------------------------------------------------------/
45c0fd36	38
432c4e18	39	#include "ec.h"
	40
	41	/----- Data structures ---------------------------------------------------/
	42
	43	typedef struct ecdata {
	44	unsigned ftag; /* The kind of curve this is */
4edc47b8	45	mp p, beta; /* Modulus, and conversion magic */
34e4f738	46	mp a, b; /* Elliptic curve parameters */
	47	mp r; /* Order of common point %$g$% */
	48	mp h; /* Cofactor %$h = \#E/r$% */
	49	mp gx, gy; /* Common point */
432c4e18	50	} ecdata;
	51
	52	enum {
	53	FTAG_PRIME, /* Prime but not nice */
	54	FTAG_NICEPRIME, /* Nice prime field */
4edc47b8	55	FTAG_BINPOLY, /* Binary field, poly basis */
4edc47b8	56	FTAG_BINNORM /* Binary field, normal basis */
432c4e18	57	};
	58
	59	typedef struct ecentry {
	60	const char *name;
34e4f738	61	ecdata *data;
432c4e18	62	} ecentry;
	63
	64	/----- Global variables --------------------------------------------------/
	65
	66	extern const ecentry ectab[];
	67
	68	/----- That's all, folks -------------------------------------------------/
	69
	70	#ifdef __cplusplus
	71	}
	72	#endif
	73
	74	#endif