/* -*-c-*-
*
- * $Id: ectab.h,v 1.2 2004/04/01 12:50:09 mdw Exp $
+ * $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 --------------------------------------------------*
+/*----- Licensing notice --------------------------------------------------*
*
* This file is part of Catacomb.
*
* 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: ectab.h,v $
- * Revision 1.2 2004/04/01 12:50:09 mdw
- * Add cyclic group abstraction, with test code. Separate off exponentation
- * functions for better static linking. Fix a buttload of bugs on the way.
- * Generally ensure that negative exponents do inversion correctly. Add
- * table of standard prime-field subgroups. (Binary field subgroups are
- * currently unimplemented but easy to add if anyone ever finds a good one.)
- *
- * Revision 1.1 2004/03/27 17:54:11 mdw
- * Standard curves and curve checking.
- *
- */
-
#ifndef CATACOMB_ECTAB_H
#define CATACOMB_ECTAB_H
#endif
/*----- Header files ------------------------------------------------------*/
-
+
#include "ec.h"
/*----- Data structures ---------------------------------------------------*/
typedef struct ecdata {
unsigned ftag; /* The kind of curve this is */
- mp p; /* Modulus */
+ mp p, beta; /* Modulus, and conversion magic */
mp a, b; /* Elliptic curve parameters */
mp r; /* Order of common point %$g$% */
mp h; /* Cofactor %$h = \#E/r$% */
enum {
FTAG_PRIME, /* Prime but not nice */
FTAG_NICEPRIME, /* Nice prime field */
- FTAG_BINPOLY /* Any old binary field */
+ FTAG_BINPOLY, /* Binary field, poly basis */
+ FTAG_BINNORM /* Binary field, normal basis */
};
typedef struct ecentry {