From 852cbee819137f4296974c0df15fbb3a1c28b46c Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Sun, 10 Mar 2013 19:26:17 +0100
Subject: [PATCH] small changes

---
 ecdsa.h |  2 ++
 num.h   | 11 +++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/ecdsa.h b/ecdsa.h
index 334acb2..f0c837e 100644
--- a/ecdsa.h
+++ b/ecdsa.h
@@ -41,9 +41,11 @@ public:
         Context ct(ctx);
         Number sn(ct), u1(ct), u2(ct), xrn(ct);
         sn.SetModInverse(ct, s, c.order);
+        // printf("s=%s 1/s=%s\n", s.ToString().c_str(), sn.ToString().c_str());
         u1.SetModMul(ct, sn, message, c.order);
         u2.SetModMul(ct, sn, r, c.order);
         GroupElemJac pr; ECMult(ct, pr, pubkey, u2, u1);
+        //GroupElemJac pr = pubkey;
         if (pr.IsInfinity())
             return false;
         FieldElem xr; pr.GetX(xr);
diff --git a/num.h b/num.h
index 89f06a6..7910de7 100644
--- a/num.h
+++ b/num.h
@@ -68,6 +68,9 @@ public:
         memset(bin,0,len);
         BN_bn2bin(bn, bin + size - len);
     }
+    void SetInt(int x) {
+        BN_set_word(bn, x);
+    }
     void SetModInverse(Context &ctx, const Number &x, const Number &m) {
         BN_mod_inverse(bn, x.bn, m.bn, ctx);
     }
@@ -89,7 +92,7 @@ public:
     void SetMod(Context &ctx, const Number &a, const Number &m) {
         BN_nnmod(bn, m.bn, a.bn, ctx);
     }
-    int Compare(const Number &a) {
+    int Compare(const Number &a) const {
         return BN_cmp(bn, a.bn);
     }
     int GetBits() const {
@@ -106,13 +109,13 @@ public:
         return ret;
     }
     // check whether number is 0,
-    bool IsZero() {
+    bool IsZero() const {
         return BN_is_zero(bn);
     }
-    bool IsOdd() {
+    bool IsOdd() const {
         return BN_is_odd(bn);
     }
-    bool IsNeg() {
+    bool IsNeg() const {
         return BN_is_negative(bn);
     }
     void Negate() {