From 66a5b0ecdc89a0d8888eced3ba22d7e706cd7cfb Mon Sep 17 00:00:00 2001
From: ricmoo <me@ricmoo.com>
Date: Fri, 22 Jul 2016 02:43:19 -0400
Subject: [PATCH] Expose private key in a signing key.

---
 lib/signing-key.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/signing-key.js b/lib/signing-key.js
index 9b5924917..e59d0e0b9 100644
--- a/lib/signing-key.js
+++ b/lib/signing-key.js
@@ -105,6 +105,7 @@ function SigningKey(privateKey) {
     } else if (!Buffer.isBuffer(privateKey) || privateKey.length !== 32) {
         throw new Error('invalid private key');
     }
+    utils.defineProperty(this, 'privateKey', '0x' + privateKey.toString('hex'))
 
     var keyPair = secp256k1.keyFromPrivate(privateKey);
     var publicKey = (new Buffer(keyPair.getPublic(false, 'hex'), 'hex')).slice(1);