diff --git a/ndn-cpp/security/keychain-pkcs12.cc b/ndn-cpp/security/keychain-pkcs12.cc
new file mode 100644
index 0000000..8a01fd5
--- /dev/null
+++ b/ndn-cpp/security/keychain-pkcs12.cc
@@ -0,0 +1,69 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Alexander Afanasyev
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "keychain-pkcs12.h"
+
+namespace ndn {
+
+/////////////////////////////////////////////////////
+// interface to manage certificates and identities //
+/////////////////////////////////////////////////////
+
+Ptr<const Identity>
+KeychainKeystoreOpenssl::getDefaultIdentity ()
+{
+  return Ptr<const Identity> ();
+}
+
+Ptr<const Identity>
+KeychainKeystoreOpenssl::getIdentity (const Name &identityName)
+{
+  return Ptr<const Identity> ();
+}
+
+Ptr<const Identity>
+KeychainKeystoreOpenssl::generateIdentity (const Name &identityName)
+{
+  return Ptr<const Identity> ();
+}
+
+void
+KeychainKeystoreOpenssl::requestIdentityCertificate (const Identity &identity, std::ostream &os)
+{
+}
+
+Ptr<const Certificate>
+KeychainKeystoreOpenssl::issueCertificate (const Identity &identity, std::istream &is)
+{
+  return Ptr<const Certificate> ();
+}
+
+Ptr<const Certificate>
+KeychainKeystoreOpenssl::issueCertificate (std::istream &is)
+{
+  return Ptr<const Certificate> ();
+}
+
+void
+KeychainKeystoreOpenssl::installIdentityCertificate (const Certificate &cert)
+{
+}
+
+/////////////////////////////////////////////////////
+//       interface to sign and encrypt data        //
+/////////////////////////////////////////////////////
+Ptr<Signature>
+KeychainKeystoreOpenssl::sign (const Identity &identity, const void *buffer, size_t size)
+{
+  return Ptr<Signature> ();
+}
+
+
+} // ndn