From 679bf0f3c975ebe7f610e09854cdf820603be862 Mon Sep 17 00:00:00 2001
From: Henry <cryptix@riseup.net>
Date: Tue, 3 Jun 2014 16:15:11 +0200
Subject: [PATCH] Fixes #22 - Padding issue in Go1.3 rc1

---
 jwt.go | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/jwt.go b/jwt.go
index d4f191a..b630593 100644
--- a/jwt.go
+++ b/jwt.go
@@ -217,12 +217,8 @@ func EncodeSegment(seg []byte) string {
 
 // Decode JWT specific base64url encoding with padding stripped
 func DecodeSegment(seg string) ([]byte, error) {
-	// len % 4
-	switch len(seg) % 4 {
-	case 2:
-		seg = seg + "=="
-	case 3:
-		seg = seg + "==="
+	if l := len(seg) % 4; l > 0 {
+		seg += strings.Repeat("=", 4-l)
 	}
 
 	return base64.URLEncoding.DecodeString(seg)