diff --git a/tools/ndnsec.cpp b/tools/ndnsec.cpp
index 135be48..1c62981 100644
--- a/tools/ndnsec.cpp
+++ b/tools/ndnsec.cpp
@@ -1,8 +1,15 @@
 /* -*- 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>
+/**
+ * Copyright (c) 2013-2014,  Regents of the University of California.
+ * All rights reserved.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ *
+ * This file licensed under New BSD License.  See COPYING for detailed information about
+ * ndn-cxx library copyright, permissions, and redistribution restrictions.
+ *
+ * @author Yingdi Yu <http://irl.cs.ucla.edu/~yingdi/>
  */
 
 #include "ndnsec-util.hpp"