diff --git a/utils/dummy-keychain.hpp b/utils/dummy-keychain.hpp
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+++ b/utils/dummy-keychain.hpp
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+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011-2014 University of California, Los Angeles
+ *
+ * See AUTHORS.md for complete list of authors and contributors.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef NDNSIM_UTILS_DUMMY_KEYCHAIN_HPP
+#define NDNSIM_UTILS_DUMMY_KEYCHAIN_HPP
+
+#include <ndn-cxx/security/key-chain.hpp>
+
+namespace ndn {
+namespace security {
+
+class DummyPublicInfo : public SecPublicInfo {
+public:
+  virtual bool
+  doesIdentityExist(const Name& identityName);
+
+  virtual void
+  addIdentity(const Name& identityName);
+
+  virtual bool
+  revokeIdentity();
+
+  virtual bool
+  doesPublicKeyExist(const Name& keyName);
+
+  virtual void
+  addKey(const Name& keyName, const PublicKey& publicKey);
+
+  virtual shared_ptr<PublicKey>
+  getPublicKey(const Name& keyName);
+
+  virtual KeyType
+  getPublicKeyType(const Name& keyName);
+
+  virtual bool
+  doesCertificateExist(const Name& certificateName);
+
+  virtual void
+  addCertificate(const IdentityCertificate& certificate);
+
+  virtual shared_ptr<IdentityCertificate>
+  getCertificate(const Name& certificateName);
+
+  virtual Name
+  getDefaultIdentity();
+
+  virtual Name
+  getDefaultKeyNameForIdentity(const Name& identityName);
+
+  virtual Name
+  getDefaultCertificateNameForKey(const Name& keyName);
+
+  virtual void
+  getAllIdentities(std::vector<Name>& nameList, bool isDefault);
+
+  virtual void
+  getAllKeyNames(std::vector<Name>& nameList, bool isDefault);
+
+  virtual void
+  getAllKeyNamesOfIdentity(const Name& identity, std::vector<Name>& nameList, bool isDefault);
+
+  virtual void
+  getAllCertificateNames(std::vector<Name>& nameList, bool isDefault);
+
+  virtual void
+  getAllCertificateNamesOfKey(const Name& keyName, std::vector<Name>& nameList, bool isDefault);
+
+  virtual void
+  deleteCertificateInfo(const Name& certificateName);
+
+  virtual void
+  deletePublicKeyInfo(const Name& keyName);
+
+  virtual void
+  deleteIdentityInfo(const Name& identity);
+
+protected:
+  virtual void
+  setDefaultIdentityInternal(const Name& identityName);
+
+  virtual void
+  setDefaultKeyNameForIdentityInternal(const Name& keyName);
+
+  virtual void
+  setDefaultCertificateNameForKeyInternal(const Name& certificateName);
+};
+
+//////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////
+
+class DummyTpm : public SecTpm {
+public:
+  virtual void
+  setTpmPassword(const uint8_t* password, size_t passwordLength);
+
+  virtual void
+  resetTpmPassword();
+
+  virtual void
+  setInTerminal(bool inTerminal);
+
+  virtual bool
+  getInTerminal() const;
+
+  virtual bool
+  isLocked();
+
+  virtual bool
+  unlockTpm(const char* password, size_t passwordLength, bool usePassword);
+
+  virtual void
+  generateKeyPairInTpm(const Name& keyName, const KeyParams& params);
+
+  virtual void
+  deleteKeyPairInTpm(const Name& keyName);
+
+  virtual shared_ptr<PublicKey>
+  getPublicKeyFromTpm(const Name& keyName);
+
+  virtual Block
+  signInTpm(const uint8_t* data, size_t dataLength, const Name& keyName,
+            DigestAlgorithm digestAlgorithm);
+
+  virtual ConstBufferPtr
+  decryptInTpm(const uint8_t* data, size_t dataLength, const Name& keyName, bool isSymmetric);
+
+  virtual ConstBufferPtr
+  encryptInTpm(const uint8_t* data, size_t dataLength, const Name& keyName, bool isSymmetric);
+
+  virtual void
+  generateSymmetricKeyInTpm(const Name& keyName, const KeyParams& params);
+
+  virtual bool
+  doesKeyExistInTpm(const Name& keyName, KeyClass keyClass);
+
+  virtual bool
+  generateRandomBlock(uint8_t* res, size_t size);
+
+  virtual void
+  addAppToAcl(const Name& keyName, KeyClass keyClass, const std::string& appPath, AclType acl);
+
+protected:
+  virtual ConstBufferPtr
+  exportPrivateKeyPkcs8FromTpm(const Name& keyName);
+
+  virtual bool
+  importPrivateKeyPkcs8IntoTpm(const Name& keyName, const uint8_t* buffer, size_t bufferSize);
+
+  virtual bool
+  importPublicKeyPkcs1IntoTpm(const Name& keyName, const uint8_t* buffer, size_t bufferSize);
+};
+
+typedef KeyChainTraits<DummyPublicInfo, DummyTpm> DummyKeyChainTraits;
+
+} // namespace security
+
+class DummyKeyChain : public KeyChain {
+public:
+  DummyKeyChain()
+    : KeyChain(security::DummyKeyChainTraits())
+  {
+  }
+};
+
+} // namespace ndn
+
+#endif // NDNSIM_UTILS_DUMMY_KEYCHAIN_HPP