diff -r 33c0a30554c7 -r b671ae6b0e88 src/pyams_portal/interfaces/__init__.py
--- a/src/pyams_portal/interfaces/__init__.py	Sat Jun 23 14:32:56 2018 +0200
+++ b/src/pyams_portal/interfaces/__init__.py	Mon Jun 25 09:42:24 2018 +0200
@@ -159,6 +159,7 @@
     target_interface = Attribute("Target interface provided by this renderer")
 
     use_portlets_cache = Attribute("Can renderer use rendering cache?")
+    use_authentication = Attribute("If 'True', portlet cache entry key is based on current authentication")
 
 
 PORTLET_RENDERER_SETTINGS_KEY = 'pyams_portal.renderer.settings::{0}'