X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/b085fd9162fa3ff5b16788ced6d11a71ffe5a5fe..d4bb7fded5f9a4b0db99f82e88f22effe94f2ff7:/ec-exp.h diff --git a/ec-exp.h b/ec-exp.h index c760c43..8ee3154 100644 --- a/ec-exp.h +++ b/ec-exp.h @@ -1,13 +1,13 @@ /* -*-c-*- * - * $Id: ec-exp.h,v 1.1 2002/01/13 13:48:44 mdw Exp $ + * $Id: ec-exp.h,v 1.6 2004/04/08 01:36:15 mdw Exp $ * * Exponentiation operations for elliptic curves * * (c) 2001 Straylight/Edgeware */ -/*----- Licensing notice --------------------------------------------------* +/*----- Licensing notice --------------------------------------------------* * * This file is part of Catacomb. * @@ -15,26 +15,18 @@ * 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: ec-exp.h,v $ - * Revision 1.1 2002/01/13 13:48:44 mdw - * Further progress. - * - */ - #ifndef CATACOMB_EC_EXP_H #define CATACOMB_EC_EXP_H @@ -46,23 +38,24 @@ #define EXP_TYPE ec -#define EXP_COPY(d, x) do { \ - d.x = MP_COPY(x.x); \ - d.y = MP_COPY(x.y); \ - d.z = x.z ? MP_COPY(x.x) : MP_NEW; \ -} while (0) -#define EXP_DROP(x) EC_DESTROY(c, &x) +#define EXP_COPY(d, p) do { \ + (d).x = MP_COPY((p).x); \ + (d).y = MP_COPY((p).y); \ + (d).z = (p).z ? MP_COPY((p).z) : MP_NEW; \ +} while (0) +#define EXP_DROP(x) EC_DESTROY(&(x)) -#define EXP_MUL(a, x) EC_ADD(c, &a, &a, &x) -#define EXP_SQR(a) EC_DBL(c, &a, &a); +#define EXP_MUL(a, x) EC_ADD(c, &(a), &(a), &(x)) +#define EXP_SQR(a) EC_DBL(c, &(a), &(a)) +#define EXP_FIX(x) #define EXP_SETMUL(d, x, y) do { \ - EC_CREATE(&d); \ - EC_ADD(c, &d, &x, &y); \ + EC_CREATE(&(d)); \ + EC_ADD(c, &(d), &(x), &(y)); \ } while (0) #define EXP_SETSQR(d, x) do { \ - EC_CREATE(&d); \ - EC_DBL(c, &d, &x); \ + EC_CREATE(&(d)); \ + EC_DBL(c, &(d), &(x)); \ } while (0) #include "exp.h"