diff --git a/tools/ndnsec-delete.hpp b/tools/ndnsec-delete.hpp
new file mode 100644
index 0000000..bced204
--- /dev/null
+++ b/tools/ndnsec-delete.hpp
@@ -0,0 +1,98 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ * BSD license, See the LICENSE file for more information
+ * Author: Yingdi Yu <yingdi@cs.ucla.edu>
+ */
+
+#ifndef NDNSEC_DELETE_HPP
+#define NDNSEC_DELETE_HPP
+
+#include "ndnsec-util.hpp"
+
+int 
+ndnsec_delete(int argc, char** argv)	
+{
+  using namespace ndn;
+  namespace po = boost::program_options;
+
+  bool deleteId = true;
+  bool deleteKey = false;
+  bool deleteCert = false;
+  std::string name;
+
+  po::options_description desc("General Usage\n  ndnsec delete [-h] [-K|C] name\nGeneral options");
+  desc.add_options()
+    ("help,h", "produce help message")
+    ("delete_key,K", "(Optional) delete a key if specified.")
+    ("delete_cert,C", "(Optional) delete a certificate if specified.")
+    ("name,n", po::value<std::string>(&name), "By default, it refers to an identity."
+     "If -K is specified, it refers to a key."
+     "If -C is specified, it refers to a certificate.");
+    ;
+
+  po::positional_options_description p;
+  p.add("name", 1);
+  
+  po::variables_map vm;
+  try
+    {
+      po::store(po::command_line_parser(argc, argv).options(desc).positional(p).run(), vm);
+      po::notify(vm);
+    }
+  catch (std::exception &e)
+    {
+      std::cerr << "ERROR: " << e.what() << std::endl;
+      return 1;
+    }
+
+  if (vm.count("help")) 
+    {
+      std::cerr << desc << std::endl;;
+      return 0;
+    }
+
+  if(vm.count("delete_cert"))
+    {
+      deleteCert = true;
+      deleteId = false;
+    }
+  else if(vm.count("delete_key"))
+    {
+      deleteKey = true;
+      deleteId = false;
+    }
+  
+  try
+    {
+      KeyChain keyChain;
+
+      if(deleteCert)
+        {
+          keyChain.deleteCertificate(name);
+        }
+      else if(deleteKey)
+        {
+          keyChain.deleteKey(name);
+        }
+      else
+        {
+          keyChain.deleteIdentity(name);
+        }
+      
+      return 0;
+      
+    }
+  catch(SecPublicInfo::Error& e)
+    {
+      std::cerr << e.what() << std::endl;
+      return 1;
+    }
+  catch(SecTpm::Error& e)
+    {
+      std::cerr << e.what() << std::endl;
+      return 1;
+    }
+}
+
+#endif //NDNSEC_DELETE_HPP