From b05cff1320442b1841757ec745fa79fdd3528aa8 Mon Sep 17 00:00:00 2001
From: monnerat <pm@datasphere.ch>
Date: Fri, 12 Oct 2012 01:01:20 +0100
Subject: [PATCH] ASN1: process input NULL fields.

---
 phpseclib/File/ASN1.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/phpseclib/File/ASN1.php b/phpseclib/File/ASN1.php
index 9c5499a7..7eccf690 100644
--- a/phpseclib/File/ASN1.php
+++ b/phpseclib/File/ASN1.php
@@ -668,6 +668,8 @@ class File_ASN1 {
                 }
             case FILE_ASN1_TYPE_OCTET_STRING:
                 return base64_encode($decoded['content']);
+            case FILE_ASN1_TYPE_NULL:
+                return '';
             case FILE_ASN1_TYPE_BOOLEAN:
                 return $decoded['content'];
             case FILE_ASN1_TYPE_NUMERIC_STRING: