all chains passing for private extended keys

lib/hdkey.js

@@ -130,7 +130,7 @@ HDKey.prototype.deriveChild = function(index) {
     // data = serP(point(kpar)) || ser32(index)
     //      = serP(Kpar) || ser32(index)
     data = Buffer.concat([
-      new Buffer(this.publicPoint.getEncoded(true)),
+      new Buffer(this.pub.getEncoded(true)),
       indexBuffer
     ])
   }

test/hdkey.test.js

@@ -12,7 +12,7 @@ function encode(buf) {
 }
 
 describe('hdkey', function() {
-  var f = fixtures.valid[0]//.forEach(function(f) {
+  var f = fixtures.valid.forEach(function(f) {
     it('should properly derive the chain path: ' + f.path, function() {
     
       var hdkey = new HDKey(new Buffer(f.seed, 'hex'))
@@ -21,5 +21,5 @@ describe('hdkey', function() {
       EQ (encode(childkey.private), f.private)
       //EQ (encode(childkey.public), f.public)
     })    
-  //})  
+  })  
 })