small changes
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c82e1eeead
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2
ecdsa.h
2
ecdsa.h
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@ -41,9 +41,11 @@ public:
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Context ct(ctx);
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Number sn(ct), u1(ct), u2(ct), xrn(ct);
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sn.SetModInverse(ct, s, c.order);
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// printf("s=%s 1/s=%s\n", s.ToString().c_str(), sn.ToString().c_str());
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u1.SetModMul(ct, sn, message, c.order);
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u2.SetModMul(ct, sn, r, c.order);
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GroupElemJac pr; ECMult(ct, pr, pubkey, u2, u1);
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//GroupElemJac pr = pubkey;
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if (pr.IsInfinity())
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return false;
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FieldElem xr; pr.GetX(xr);
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11
num.h
11
num.h
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@ -68,6 +68,9 @@ public:
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memset(bin,0,len);
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BN_bn2bin(bn, bin + size - len);
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}
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void SetInt(int x) {
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BN_set_word(bn, x);
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}
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void SetModInverse(Context &ctx, const Number &x, const Number &m) {
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BN_mod_inverse(bn, x.bn, m.bn, ctx);
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}
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@ -89,7 +92,7 @@ public:
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void SetMod(Context &ctx, const Number &a, const Number &m) {
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BN_nnmod(bn, m.bn, a.bn, ctx);
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}
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int Compare(const Number &a) {
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int Compare(const Number &a) const {
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return BN_cmp(bn, a.bn);
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}
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int GetBits() const {
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@ -106,13 +109,13 @@ public:
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return ret;
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}
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// check whether number is 0,
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bool IsZero() {
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bool IsZero() const {
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return BN_is_zero(bn);
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}
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bool IsOdd() {
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bool IsOdd() const {
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return BN_is_odd(bn);
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}
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bool IsNeg() {
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bool IsNeg() const {
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return BN_is_negative(bn);
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}
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void Negate() {
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