diff --git a/nlsr_km.h b/nlsr_km.h
index bb935fa..65c2dca 100644
--- a/nlsr_km.h
+++ b/nlsr_km.h
@@ -11,6 +11,9 @@
 };
 
 
+struct nlsr_key{
+	char *key_name;
+};
 
 
 int
@@ -33,4 +36,9 @@
 				struct ccn_parsed_ContentObject *pco,
 				int content_type);
 
+void add_key(char *keyname);
+int does_key_exist(char *keyname);
+
+void destroy_keys(void);
+
 #endif