--- a/util/sasl/scram.lua	Mon Jan 17 16:50:21 2011 +0100
+++ b/util/sasl/scram.lua	Mon Jan 17 16:50:21 2011 +0100
@@ -38,6 +38,10 @@
 	function(username, realm)
 		return stored_key, server_key, iteration_count, salt, state;
 	end
+
+Supported Channel Binding Backends
+
+'tls-unique' according to RFC 5929
 ]]
 
 local default_i = 4096