From f8afd8b5ce59fa4aeb8bf6b20a1b211a84073441 Mon Sep 17 00:00:00 2001
From: Joseph Schorr <joseph.schorr@coreos.com>
Date: Thu, 26 Mar 2015 16:13:35 -0400
Subject: [PATCH] Make sure to parse the big int into a byte string

---
 data/users.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/data/users.py b/data/users.py
index 628f5a0c3..13556a552 100644
--- a/data/users.py
+++ b/data/users.py
@@ -3,6 +3,7 @@ import logging
 import json
 import itertools
 import uuid
+import struct
 
 from util.aes import AESCipher
 from util.validation import generate_valid_usernames
@@ -150,7 +151,8 @@ class UserAuthentication(object):
 
     # First try parsing the key as an int.
     try:
-      secret_key = int(app_secret_key)
+      big_int = int(app_secret_key)
+      secret_key = bytearray.fromhex('{:02x}'.format(big_int))
     except ValueError:
       secret_key = app_secret_key