From bb9974b8184ac9eb03d542e04a20feb3f9f10c70 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Thu, 10 Dec 2015 17:54:15 -0800
Subject: [PATCH] add master key reference to hd keys.

---
 lib/bcoin/hd.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/bcoin/hd.js b/lib/bcoin/hd.js
index 4297e55e..6036419d 100644
--- a/lib/bcoin/hd.js
+++ b/lib/bcoin/hd.js
@@ -151,6 +151,8 @@ function HDPriv(options) {
     data = options;
   }
 
+  this.master = options.master || this;
+
   data = this._normalize(data, network.prefixes.xprivkey);
 
   this.data = data;
@@ -323,6 +325,7 @@ HDPriv.prototype.derive = function(index, hard) {
   var privateKey = leftPart.add(new bn(this.privateKey)).mod(ec.curve.n).toArray();
 
   return new HDPriv({
+    master: this.master,
     // version: this.version,
     depth: this.depth + 1,
     parentFingerPrint: this.fingerPrint,