/* -*-c-*-
*
- * $Id: dsa-sign.c,v 1.2 1999/12/10 23:18:38 mdw Exp $
+ * $Id: dsa-sign.c,v 1.3 2004/04/08 01:36:15 mdw Exp $
*
* DSA signing operation
*
* (c) 1999 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: dsa-sign.c,v $
- * Revision 1.2 1999/12/10 23:18:38 mdw
- * Change interface for suggested destinations.
- *
- * Revision 1.1 1999/11/19 19:28:00 mdw
- * Implementation of the Digital Signature Algorithm.
- *
- */
-
/*----- Header files ------------------------------------------------------*/
#include "dsa.h"
{
mpmont pm;
mpbarrett qb;
- mp *k1 = MP_NEW, *r;
+ mp *k1, *r;
mp *ar;
/* --- Compute %$r = (g^k \bmod p) \bmod q$% --- */
/* --- Compute %$k^{-1} \bmod q$% --- */
- mp_gcd(0, 0, &k1, dp->q, k);
+ k1 = mp_modinv(MP_NEW, k, dp->q);
/* --- Now for %$k^{-1}(m + ar)$% --- */
const void *m, size_t msz, const void *k, size_t ksz,
void *r, size_t rsz, void *s, size_t ssz)
{
- mp *mm = mp_loadb(MP_NEW, m, msz);
+ mp *mm = dsa_h2n(MP_NEW, dp->q, m, msz);
mp *km = mp_loadb(MP_NEW, k, ksz);
mp *rm = MP_NEW, *sm = MP_NEW;
dsa_mksig(dp, a, mm, km, &rm, &sm);
fputs("\ns = ", stderr); mp_writefile(m, stderr, 16);
mp_drop(m);
}
-
+
fputc('\n', stderr);
ok = 0;
}