X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/898a4e2555438ff8adb08b4d82690d08715e1048..b817bfc642225b8c3c0b6a7e42d1fb949b61a606:/gkcdsa.c

diff --git a/gkcdsa.c b/gkcdsa.c
index f7119f5..6d812ff 100644
--- a/gkcdsa.c
+++ b/gkcdsa.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: gkcdsa.c,v 1.1 2004/04/04 19:42:59 mdw Exp $
+ * $Id: gkcdsa.c,v 1.2 2004/04/08 01:36:15 mdw Exp $
  *
  * Generalized version of KCDSA
  *
@@ -27,14 +27,6 @@
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: gkcdsa.c,v $
- * Revision 1.1  2004/04/04 19:42:59  mdw
- * Add set -e.
- *
- */
-
 /*----- Header files ------------------------------------------------------*/
 
 #include "gkcdsa.h"
@@ -61,7 +53,6 @@ ghash *gkcdsa_beginhash(const gkcdsa *c)
   mp *v = G_TOINT(c->g, MP_NEW, c->p);
   size_t sz = c->h->bufsz;
   void *p = xmalloc(sz);
-
   if (/*ouch*/ !v) memset(p, 0, sz);
   else mp_storeb(v, p, sz);
   GH_HASH(h, p, sz);
@@ -238,7 +229,7 @@ static int tsign(dstr *v)
   DENSURE(&d, c.h->hashsz); d.len = c.h->hashsz; memset(d.buf, 0, d.len);
   ss.r = (octet *)d.buf;
 
-  x = MP_NEW; mp_gcd(0, 0, &x, c.g->r, c.u);
+  x = mp_modinv(MP_NEW, c.u, c.g->r);
   c.p = G_CREATE(c.g); G_EXP(c.g, c.p, c.g->g, x);
   h = gkcdsa_beginhash(&c);
   GH_HASH(h, v[3].buf, v[3].len);