From e220d2da1d0bace1ddfde3084d0918199d56cc73 Mon Sep 17 00:00:00 2001
From: William Grant <me@williamgrant.id.au>
Date: Sat, 19 Mar 2011 18:54:31 +1100
Subject: [PATCH] asn1_length fixed.

---
 dkim/asn1.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dkim/asn1.py b/dkim/asn1.py
index 43387b9..356fe34 100644
--- a/dkim/asn1.py
+++ b/dkim/asn1.py
@@ -101,9 +101,9 @@ def asn1_length(n):
     assert n >= 0
     if n < 0x7f:
         return chr(n)
-    r = ""
+    r = bytearray()
     while n > 0:
-        r = chr(n & 0xff) + r
+        r.insert(n & 0xff)
         n >>= 8
     return r