diff --git a/ndn-cpp/security/identity/memory-private-key-storage.hpp b/ndn-cpp/security/identity/memory-private-key-storage.hpp
new file mode 100644
index 0000000..d97d2a8
--- /dev/null
+++ b/ndn-cpp/security/identity/memory-private-key-storage.hpp
@@ -0,0 +1,132 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/**
+ * Copyright (C) 2013 Regents of the University of California.
+ * @author: Jeff Thompson <jefft0@remap.ucla.edu>
+ * See COPYING for copyright and distribution information.
+ */
+
+#ifndef NDN_MEMORY_PRIVATE_KEY_STORAGE_HPP
+#define	NDN_MEMORY_PRIVATE_KEY_STORAGE_HPP
+
+#include <map>
+#include "private-key-storage.hpp"
+
+struct rsa_st;
+
+namespace ndn {
+
+/**
+ * MemoryPrivateKeyStorage extends PrivateKeyStorage to implement a simple in-memory private key store.  You should
+ * initialize by calling setKeyPairForKeyName.
+ */
+class MemoryPrivateKeyStorage : public PrivateKeyStorage {
+public:
+  /**
+   * The virtual destructor
+   */    
+  virtual 
+  ~MemoryPrivateKeyStorage();
+
+  /**
+   * Set the public and private key for the keyName.
+   * @param keyName The key name.
+   * @param publicKeyDer The public key DER byte array.
+   * @param publicKeyDerLength The length of publicKeyDer.
+   * @param privateKeyDer The private key DER byte array.
+   * @param privateKeyDerLength The length of privateKeyDer.
+   */
+  void setKeyPairForKeyName
+    (const Name& keyName, unsigned char *publicKeyDer, size_t publicKeyDerLength, unsigned char *privateKeyDer, 
+     size_t privateKeyDerLength);
+  
+  /**
+   * Generate a pair of asymmetric keys.
+   * @param keyName The name of the key pair.
+   * @param keyType The type of the key pair, e.g. KEY_TYPE_RSA.
+   * @param keySize The size of the key pair.
+   */
+  virtual void 
+  generateKeyPair(const Name& keyName, KeyType keyType, int keySize);
+
+  /**
+   * Get the public key
+   * @param keyName The name of public key.
+   * @return The public key.
+   */
+  virtual ptr_lib::shared_ptr<PublicKey> 
+  getPublicKey(const Name& keyName);
+  
+  /**
+   * Fetch the private key for keyName and sign the data, returning a signature Blob.
+   * @param data Pointer to the input byte array.
+   * @param dataLength The length of data.
+   * @param keyName The name of the signing key.
+   * @param digestAlgorithm the digest algorithm.
+   * @return The signature, or a null pointer if signing fails.
+   */  
+  virtual Blob 
+  sign(const unsigned char *data, unsigned int dataLength, const Name& keyName, DigestAlgorithm digestAlgorithm);
+    
+  /**
+   * Decrypt data.
+   * @param keyName The name of the decrypting key.
+   * @param data The byte to be decrypted.
+   * @param dataLength the length of data.
+   * @param isSymmetric If true symmetric encryption is used, otherwise asymmetric decryption is used.
+   * @return The decrypted data.
+   */
+  virtual Blob 
+  decrypt(const Name& keyName, const unsigned char* data, unsigned int dataLength, bool isSymmetric);
+
+  /**
+   * Encrypt data.
+   * @param keyName The name of the encrypting key.
+   * @param data The byte to be encrypted.
+   * @param dataLength the length of data.
+   * @param isSymmetric If true symmetric encryption is used, otherwise asymmetric decryption is used.
+   * @return The encrypted data.
+   */
+  virtual Blob
+  encrypt(const Name& keyName, const unsigned char* data, unsigned int dataLength, bool isSymmetric);
+
+  /**
+   * @brief Generate a symmetric key.
+   * @param keyName The name of the key.
+   * @param keyType The type of the key, e.g. KEY_TYPE_AES.
+   * @param keySize The size of the key.
+   */
+  virtual void 
+  generateKey(const Name& keyName, KeyType keyType, int keySize);
+
+  /**
+   * Check if a particular key exists.
+   * @param keyName The name of the key.
+   * @param keyClass The class of the key, e.g. KEY_CLASS_PUBLIC, KEY_CLASS_PRIVATE, or KEY_CLASS_SYMMETRIC.
+   * @return True if the key exists, otherwise false.
+   */
+  virtual bool
+  doesKeyExist(const Name& keyName, KeyClass keyClass);  
+  
+private:
+  /**
+   * RsaPrivateKey is a simple class to hold an RSA private key.
+   */
+  class RsaPrivateKey {
+  public:
+    RsaPrivateKey(unsigned char *keyDer, size_t keyDerLength);
+    
+    ~RsaPrivateKey();
+    
+    struct rsa_st* getPrivateKey() { return privateKey_; }
+    
+  private:
+    struct rsa_st* privateKey_;
+  };
+    
+  std::map<std::string, ptr_lib::shared_ptr<PublicKey> > publicKeyStore_;      /**< The map key is the keyName.toUri() */
+  std::map<std::string, ptr_lib::shared_ptr<RsaPrivateKey> > privateKeyStore_; /**< The map key is the keyName.toUri() */
+};
+
+}
+
+#endif