diff --git a/tools/pib/encoding/default-param.hpp b/tools/pib/encoding/default-param.hpp
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+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2014 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+
+#ifndef NDN_PIB_DEFAULT_PARAM_HPP
+#define NDN_PIB_DEFAULT_PARAM_HPP
+
+#include "pib-common.hpp"
+#include <ndn-cxx/name.hpp>
+
+namespace ndn {
+namespace pib {
+
+/**
+ * @brief DefaultParam is the abstraction of PIB Default parameter.
+ *
+ *  PibDefaultParam := PIB-DEFAULT-PARAM-TYPE TLV-LENGTH
+ *                     PibType    // target type
+ *                     PibType    // origin type
+ *                     Name?      // origin name
+ *
+ * @sa http://redmine.named-data.net/projects/ndn-cxx/wiki/PublicKey_Info_Base#Default-Parameters
+ */
+
+class DefaultParam : noncopyable
+{
+public:
+  class Error : public tlv::Error
+  {
+  public:
+    explicit
+    Error(const std::string& what)
+      : tlv::Error(what)
+    {
+    }
+  };
+
+  DefaultParam();
+
+  DefaultParam(const pib::Type targetType,
+               const pib::Type originType,
+               const Name& originName = Name());
+
+  explicit
+  DefaultParam(const Block& wire);
+
+  tlv::pib::ParamType
+  getParamType() const
+  {
+    return tlv::pib::DefaultParam;
+  }
+
+  pib::Type
+  getTargetType() const
+  {
+    return m_targetType;
+  }
+
+  pib::Type
+  getOriginType() const
+  {
+    return m_originType;
+  }
+
+  /**
+   * @brief Get target name
+   *
+   * @throws Error if origin name does not exist
+   */
+  const Name&
+  getOriginName() const;
+
+  /// @brief Encode to a wire format or estimate wire format
+  template<bool T>
+  size_t
+  wireEncode(EncodingImpl<T>& block) const;
+
+  /**
+   * @brief Encode to a wire format
+   *
+   * @throws Error if encoding fails
+   */
+  const Block&
+  wireEncode() const;
+
+  /**
+   * @brief Decode GetParam from a wire encoded block
+   *
+   * @throws Error if decoding fails
+   */
+  void
+  wireDecode(const Block& wire);
+
+public:
+  static const std::string VERB;
+
+private:
+  pib::Type m_targetType;
+  pib::Type m_originType;
+  Name m_originName;
+
+  mutable Block m_wire;
+};
+
+} // namespace pib
+} // namespace ndn
+
+
+
+#endif // NDN_PIB_DEFAULT_PARAM_HPP