From f837317ffd69b65af922d369cae455fa1c88afe8 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Tue, 26 Jul 2016 23:39:21 -0700
Subject: [PATCH] bip151: fix aead aad etm.

---
 lib/bcoin/bip151.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/bcoin/bip151.js b/lib/bcoin/bip151.js
index f9226c73..a5ea0bea 100644
--- a/lib/bcoin/bip151.js
+++ b/lib/bcoin/bip151.js
@@ -202,8 +202,9 @@ BIP151Stream.prototype.getPublicKey = function getPublicKey() {
 BIP151Stream.prototype.encryptSize = function encryptSize(size) {
   var data = new Buffer(4);
   data.writeUInt32LE(size, 0, true);
+  this.chacha.encrypt(data);
   this.aead.aad(data);
-  return this.chacha.encrypt(data);
+  return data;
 };
 
 /**
@@ -214,8 +215,8 @@ BIP151Stream.prototype.encryptSize = function encryptSize(size) {
 
 BIP151Stream.prototype.decryptSize = function decryptSize(data) {
   data = data.slice(0, 4);
-  this.chacha.encrypt(data);
   this.aead.aad(data);
+  this.chacha.encrypt(data);
   return data.readUInt32LE(0, true);
 };