diff -r 08c9fb6fb017 -r d54786065fa3 src/org/sonews/storage/Storage.java
--- a/src/org/sonews/storage/Storage.java	Wed Oct 19 17:23:53 2011 +0200
+++ b/src/org/sonews/storage/Storage.java	Wed Oct 19 21:40:51 2011 +0200
@@ -144,4 +144,7 @@
 
 	boolean update(Group group)
 			throws StorageBackendException;
+
+	public boolean authenticateUser(String username, char[] password)
+			throws StorageBackendException;
 }