From e52c0d5b678a5dcdb2b0301cc830648c931b198e Mon Sep 17 00:00:00 2001
From: Daniel Cousens <github@dcousens.com>
Date: Wed, 27 Apr 2016 16:42:25 +1000
Subject: [PATCH 1/3] ECPair: use toBase58Check

---
 src/ecpair.js | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/ecpair.js b/src/ecpair.js
index c647196..e60cdfb 100644
--- a/src/ecpair.js
+++ b/src/ecpair.js
@@ -1,3 +1,4 @@
+var baddress = require('./address')
 var bcrypto = require('./crypto')
 var bs58check = require('bs58check')
 var ecdsa = require('./ecdsa')
@@ -97,14 +98,7 @@ ECPair.makeRandom = function (options) {
 }
 
 ECPair.prototype.getAddress = function () {
-  var pubKey = this.getPublicKeyBuffer()
-  var pubKeyHash = bcrypto.hash160(pubKey)
-
-  var payload = new Buffer(21)
-  payload.writeUInt8(this.network.pubKeyHash, 0)
-  pubKeyHash.copy(payload, 1)
-
-  return bs58check.encode(payload)
+  return baddress.toBase58Check(bcrypto.hash160(this.getPublicKeyBuffer()), this.getNetwork().pubKeyHash)
 }
 
 ECPair.prototype.getNetwork = function () {

From 00cee340dd13380024ad1e1a6fbd8126e48a361e Mon Sep 17 00:00:00 2001
From: Daniel Cousens <github@dcousens.com>
Date: Wed, 27 Apr 2016 17:05:33 +1000
Subject: [PATCH 2/3] ECPair: don't depend on WIF error message, avoid
 unnecessary import

---
 src/ecpair.js | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/ecpair.js b/src/ecpair.js
index e60cdfb..ad06006 100644
--- a/src/ecpair.js
+++ b/src/ecpair.js
@@ -1,6 +1,5 @@
 var baddress = require('./address')
 var bcrypto = require('./crypto')
-var bs58check = require('bs58check')
 var ecdsa = require('./ecdsa')
 var randomBytes = require('randombytes')
 var typeforce = require('typeforce')
@@ -59,20 +58,24 @@ ECPair.fromPublicKeyBuffer = function (buffer, network) {
 }
 
 ECPair.fromWIF = function (string, network) {
-  var buffer = bs58check.decode(string)
+  network = network || NETWORKS.bitcoin
+  var decoded = wif.decode(string)
+  var version = decoded.version
 
+  // [network, ...]
   if (types.Array(network)) {
-    var version = buffer[0]
-
     network = network.filter(function (network) {
       return version === network.wif
     }).pop()
 
     if (!network) throw new Error('Unknown network version')
+
+  // network
+  } else if (network) {
+    // check version only if defined
+    if (version !== network.wif) throw new Error('Invalid network version')
   }
 
-  network = network || NETWORKS.bitcoin
-  var decoded = wif.decodeRaw(buffer, network.wif)
   var d = BigInteger.fromBuffer(decoded.privateKey)
 
   return new ECPair(d, null, {

From ea4ce4e2a6b128365eb0d162608e15c92b732fec Mon Sep 17 00:00:00 2001
From: Daniel Cousens <github@dcousens.com>
Date: Wed, 27 Apr 2016 18:04:35 +1000
Subject: [PATCH 3/3] ECPair: no elseif needed, move default for clarity

---
 src/ecpair.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/ecpair.js b/src/ecpair.js
index ad06006..d608884 100644
--- a/src/ecpair.js
+++ b/src/ecpair.js
@@ -58,7 +58,6 @@ ECPair.fromPublicKeyBuffer = function (buffer, network) {
 }
 
 ECPair.fromWIF = function (string, network) {
-  network = network || NETWORKS.bitcoin
   var decoded = wif.decode(string)
   var version = decoded.version
 
@@ -71,8 +70,9 @@ ECPair.fromWIF = function (string, network) {
     if (!network) throw new Error('Unknown network version')
 
   // network
-  } else if (network) {
-    // check version only if defined
+  } else {
+    network = network || NETWORKS.bitcoin
+
     if (version !== network.wif) throw new Error('Invalid network version')
   }