diff --git a/include/ndn-cpp/security/identity/identity-storage.hpp b/include/ndn-cpp/security/identity/identity-storage.hpp
index d54bc10..3c298c8 100644
--- a/include/ndn-cpp/security/identity/identity-storage.hpp
+++ b/include/ndn-cpp/security/identity/identity-storage.hpp
@@ -184,6 +184,23 @@
    */
   virtual void 
   setDefaultCertificateNameForKey(const Name& keyName, const Name& certificateName) = 0;  
+
+  
+  virtual std::vector<Name>
+  getAllIdentities(bool isDefault) = 0;
+
+  virtual std::vector<Name>
+  getAllKeyNames(bool isDefault) = 0;
+
+  virtual std::vector<Name>
+  getAllKeyNamesOfIdentity(const Name& identity, bool isDefault) = 0;
+    
+  virtual std::vector<Name>
+  getAllCertificateNames(bool isDefault) = 0;
+    
+  virtual std::vector<Name>
+  getAllCertificateNamesOfKey(const Name& keyName, bool isDefault) = 0;
+
 };
 
 }