From 8bcfeca44e9a23852fc6eba7ef8bce374b5c5565 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Thu, 21 Jul 2016 08:10:44 -0700
Subject: [PATCH] constants: zero key.

---
 lib/bcoin/hd.js                 | 10 +++-------
 lib/bcoin/protocol/constants.js | 11 +++++++++++
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/lib/bcoin/hd.js b/lib/bcoin/hd.js
index 38b45923..6c902ecf 100644
--- a/lib/bcoin/hd.js
+++ b/lib/bcoin/hd.js
@@ -94,11 +94,7 @@ var unorm;
  * Constants
  */
 
-var PUBLIC_KEY = new Buffer(33);
-PUBLIC_KEY.fill(0);
-
-var FINGER_PRINT = new Buffer(4);
-FINGER_PRINT.fill(0);
+var FINGER_PRINT = new Buffer('00000000', 'hex');
 
 /**
  * HD Mnemonic
@@ -845,7 +841,7 @@ function HDPrivateKey(options) {
   this.chainCode = constants.ZERO_HASH;
   this.privateKey = constants.ZERO_HASH;
 
-  this.publicKey = PUBLIC_KEY;
+  this.publicKey = constants.ZERO_KEY;
   this.fingerPrint = null;
 
   this.mnemonic = null;
@@ -1521,7 +1517,7 @@ function HDPublicKey(options) {
   this.parentFingerPrint = FINGER_PRINT;
   this.childIndex = 0;
   this.chainCode = constants.ZERO_HASH;
-  this.publicKey = PUBLIC_KEY;
+  this.publicKey = constants.ZERO_KEY;
 
   this.fingerPrint = null;
 
diff --git a/lib/bcoin/protocol/constants.js b/lib/bcoin/protocol/constants.js
index d21aee04..48f339a5 100644
--- a/lib/bcoin/protocol/constants.js
+++ b/lib/bcoin/protocol/constants.js
@@ -630,6 +630,17 @@ exports.ZERO_HASH160 = new Buffer(
 
 exports.NULL_HASH160 = '0000000000000000000000000000000000000000';
 
+/**
+ * A compressed pubkey of all zeroes.
+ * @const {Buffer}
+ * @default
+ */
+
+exports.ZERO_KEY = new Buffer(
+  '000000000000000000000000000000000000000000000000000000000000000000',
+  'hex'
+);
+
 /**
  * BCoin version.
  * @const {String}