update packages

2 files changed, 7 insertions, 8 deletions

diff --git a/node_modules/elliptic/lib/elliptic/curve/edwards.js b/node_modules/elliptic/lib/elliptic/curve/edwards.js
index 6e9fb7742..a8965eaec 100644
--- a/node_modules/elliptic/lib/elliptic/curve/edwards.js
+++ b/node_modules/elliptic/lib/elliptic/curve/edwards.js
@@ -74,10 +74,10 @@ EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) {
   if (!y.red)
     y = y.toRed(this.red);
 
-  // x^2 = (y^2 - 1) / (d y^2 + 1)
+  // x^2 = (y^2 - c^2) / (c^2 d y^2 - a)
   var y2 = y.redSqr();
-  var lhs = y2.redSub(this.one);
-  var rhs = y2.redMul(this.d).redAdd(this.one);
+  var lhs = y2.redSub(this.c2);
+  var rhs = y2.redMul(this.d).redMul(this.c2).redSub(this.a);
   var x2 = lhs.redMul(rhs.redInvm());
 
   if (x2.cmp(this.zero) === 0) {
@@ -91,7 +91,7 @@ EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) {
   if (x.redSqr().redSub(x2).cmp(this.zero) !== 0)
     throw new Error('invalid point');
 
-  if (x.isOdd() !== odd)
+  if (x.fromRed().isOdd() !== odd)
     x = x.redNeg();
 
   return this.point(x, y);
@@ -168,7 +168,8 @@ Point.prototype.inspect = function inspect() {
 Point.prototype.isInfinity = function isInfinity() {
   // XXX This code assumes that zero is always zero in red
   return this.x.cmpn(0) === 0 &&
-         this.y.cmp(this.z) === 0;
+    (this.y.cmp(this.z) === 0 ||
+    (this.zOne && this.y.cmp(this.curve.c) === 0));
 };
 
 Point.prototype._extDbl = function _extDbl() {
@@ -249,7 +250,7 @@ Point.prototype._projDbl = function _projDbl() {
     // E = C + D
     var e = c.redAdd(d);
     // H = (c * Z1)^2
-    var h = this.curve._mulC(this.c.redMul(this.z)).redSqr();
+    var h = this.curve._mulC(this.z).redSqr();
     // J = E - 2 * H
     var j = e.redSub(h).redSub(h);
     // X3 = c * (B - E) * J
@@ -425,7 +426,6 @@ Point.prototype.eqXToP = function eqXToP(x) {
     if (this.x.cmp(rx) === 0)
       return true;
   }
-  return false;
 };
 
 // Compatibility with BaseCurve
diff --git a/node_modules/elliptic/lib/elliptic/curve/short.js b/node_modules/elliptic/lib/elliptic/curve/short.js
index 0a09d2497..5a0e86032 100644
--- a/node_modules/elliptic/lib/elliptic/curve/short.js
+++ b/node_modules/elliptic/lib/elliptic/curve/short.js
@@ -921,7 +921,6 @@ JPoint.prototype.eqXToP = function eqXToP(x) {
     if (this.x.cmp(rx) === 0)
       return true;
   }
-  return false;
 };
 
 JPoint.prototype.inspect = function inspect() {