diff --git a/ndn-cpp/security/encryption/encryption-manager.hpp b/ndn-cpp/security/encryption/encryption-manager.hpp
new file mode 100644
index 0000000..88a69c8
--- /dev/null
+++ b/ndn-cpp/security/encryption/encryption-manager.hpp
@@ -0,0 +1,34 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/**
+ * Copyright (C) 2013 Regents of the University of California.
+ * @author: Yingdi Yu <yingdi@cs.ucla.edu>
+ * See COPYING for copyright and distribution information.
+ */
+
+#ifndef NDN_ENCRYPTION_MANAGER_HPP
+#define	NDN_ENCRYPTION_MANAGER_HPP
+
+#include "../../name.hpp"
+#include "../security-common.hpp"
+
+namespace ndn {
+
+class EncryptionManager {
+public:
+  virtual ~EncryptionManager() {}
+    
+  virtual void 
+  createSymmetricKey(const Name& keyName, KeyType keyType, const Name& signkeyName = Name(), bool isSymmetric = true) = 0;
+
+  virtual Blob
+  encrypt(const Name& keyName, const uint8_t* data, size_t dataLength, bool useSymmetric = false, 
+          EncryptMode encryptMode = ENCRYPT_MODE_DEFAULT) = 0;
+
+  virtual Blob
+  decrypt(const Name& keyName, const uint8_t* data, size_t dataLength, bool useSymmetric = false, 
+          EncryptMode encryptMode = ENCRYPT_MODE_DEFAULT) = 0;
+};
+
+}
+
+#endif