hdkey: removed superfluous code with this._privateKeyBigInteger

CHANGELOG.md

@@ -1,3 +1,7 @@
+0.3.1 / 2014-07-11
+------------------
+- removed superfluous code `this._privateKeyBigInteger`
+
 0.3.0 / 2014-06-29
 ------------------
 - bugfix: if private key was less than 32 bytes, pad out to 32 bytes with leading zeros (this happens in derive)

lib/hdkey.js

@@ -22,7 +22,6 @@ function HDKey(versions) {
   this.depth = 0
   this.index = 0
   this._privateKey = null
-  this._privateKeyInteger = BigInteger.ZERO
   this._publicKey = null
   this.chainCode = null
   this._fingerprint = 0
@@ -40,8 +39,7 @@ Object.defineProperty(HDKey.prototype, 'privateKey', {
   set: function(value) {
     assert.equal(value.length, 32, 'Private key must be 32 bytes.')
     this._privateKey = value
-    this._privateKeyInteger = BigInteger.fromBuffer(this._privateKey)
-    this._publicPoint = curve.G.multiply(this._privateKeyInteger)
+    this._publicPoint = curve.G.multiply(BigInteger.fromBuffer(this._privateKey))
     this._publicKey = this._publicPoint.getEncoded(true) //force compressed point
     this._identifier = hash160(this.publicKey)
     this._fingerprint = this._identifier.slice(0, 4).readUInt32BE(0)
@@ -59,7 +57,6 @@ Object.defineProperty(HDKey.prototype, 'publicKey', {
     this._identifier = hash160(this.publicKey)
     this._fingerprint = this._identifier.slice(0, 4).readUInt32BE(0)
     this._privateKey = null
-    this._privateKeyInteger = null
   }
 })