catcrypt: Implement symmetric key-encapsulation and signature schemes.

[u/mdw/catacomb] / gdsa.c

diff --git a/gdsa.c b/gdsa.c
index 9b23f4f..f60fb2d 100644 (file)
--- a/gdsa.c
+++ b/gdsa.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: gdsa.c,v 1.2 2004/04/08 01:36:15 mdw Exp $
+ * $Id$
  *
  * Generalized version of DSA
  *
@@ -61,7 +61,7 @@ ghash *gdsa_beginhash(const gdsa *c) { return (GH_INIT(c->h)); }
  *             isn't finalized.
  */
 
-void gdsa_endhash(gdsa *c, ghash *h) { ; }
+void gdsa_endhash(const gdsa *c, ghash *h) { ; }
 
 /* --- @gdsa_sign@ --- *
  *
@@ -88,10 +88,10 @@ void gdsa_sign(const gdsa *c, gdsa_sig *s, const void *m, mp *k)
 new_k:
   k = mprand_range(k, g->r, c->r, 0);
 have_k:
-  if (MP_ISZERO(k)) goto new_k;
+  if (MP_ZEROP(k)) goto new_k;
   G_EXP(g, z, g->g, k);
   sr = G_TOINT(g, sr, z); assert(sr);
-  if (MP_ISZERO(sr)) goto new_k;
+  if (MP_ZEROP(sr)) goto new_k;
 
   mp_div(0, &sr, sr, g->r);
   mpbarrett_create(&b, g->r);