6.3.2

dist/elliptic.js

@@ -56,8 +56,12 @@
   }
 
   BN.isBN = function isBN (num) {
+    if (num instanceof BN) {
+      return true;
+    }
+
     return num !== null && typeof num === 'object' &&
-      num.constructor.name === 'BN' && Array.isArray(num.words);
+      num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);
   };
 
   BN.max = function max (left, right) {
@@ -2098,6 +2102,10 @@
 
     assert(this.negative === 0, 'imaskn works only with positive numbers');
 
+    if (this.length <= s) {
+      return this;
+    }
+
     if (r !== 0) {
       s++;
     }
@@ -5797,12 +5805,13 @@ EC.prototype.recoverPubKey = function(msg, signature, j, enc) {
   else
     r = this.curve.pointFromX(r, isYOdd);
 
-  var eNeg = n.sub(e);
+  var rInv = signature.r.invm(n);
+  var s1 = n.sub(e).mul(rInv).umod(n);
+  var s2 = s.mul(rInv).umod(n);
 
   // 1.6.1 Compute Q = r^-1 (sR -  eG)
   //               Q = r^-1 (sR + -eG)
-  var rInv = signature.r.invm(n);
-  return this.g.mulAdd(eNeg, r, s).mul(rInv);
+  return this.g.mulAdd(s1, r, s2);
 };
 
 EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) {
@@ -8646,7 +8655,7 @@ if (typeof Object.create === 'function') {
 },{}],26:[function(require,module,exports){
 module.exports={
   "name": "elliptic",
-  "version": "6.3.1",
+  "version": "6.3.2",
   "description": "EC cryptography",
   "main": "lib/elliptic.js",
   "files": [

package.json

@@ -1,6 +1,6 @@
 {
   "name": "elliptic",
-  "version": "6.3.1",
+  "version": "6.3.2",
   "description": "EC cryptography",
   "main": "lib/elliptic.js",
   "files": [