diff --git a/src/endorse-certificate.hpp b/src/endorse-certificate.hpp
new file mode 100644
index 0000000..6a73edf
--- /dev/null
+++ b/src/endorse-certificate.hpp
@@ -0,0 +1,96 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Yingdi Yu
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Yingdi Yu <yingdi@cs.ucla.edu>
+ */
+
+#ifndef CHRONOS_ENDORSE_CERTIFICATE_HPP
+#define CHRONOS_ENDORSE_CERTIFICATE_HPP
+
+#include "profile.hpp"
+
+namespace chronos {
+
+class EndorseCertificate : public ndn::Certificate
+{
+public:
+  class Error : public ndn::Certificate::Error
+  {
+  public:
+    Error(const std::string& what)
+      : ndn::Certificate::Error(what)
+    {
+    }
+  };
+
+  static const std::vector<std::string> DEFAULT_ENDORSE_LIST;
+
+  EndorseCertificate() {}
+
+  EndorseCertificate(const ndn::IdentityCertificate& kskCertificate,
+                     const Profile& profile,
+                     const std::vector<std::string>& endorseList = DEFAULT_ENDORSE_LIST);
+
+  EndorseCertificate(const EndorseCertificate& endorseCertificate,
+                     const Name& signer,
+                     const std::vector<std::string>& endorseList = DEFAULT_ENDORSE_LIST);
+
+  EndorseCertificate(const Name& keyName,
+                     const ndn::PublicKey& key,
+                     const time::system_clock::TimePoint& notBefore,
+                     const time::system_clock::TimePoint& notAfter,
+                     const Name& signer,
+                     const Profile& profile,
+                     const std::vector<std::string>& endorseList = DEFAULT_ENDORSE_LIST);
+
+  EndorseCertificate(const EndorseCertificate& endorseCertificate);
+
+  EndorseCertificate(const Data& data);
+
+  virtual
+  ~EndorseCertificate()
+  {
+  }
+
+  const Name&
+  getSigner() const
+  {
+    return m_signer;
+  }
+
+  const Profile&
+  getProfile() const
+  {
+    return m_profile;
+  }
+
+  const std::vector<std::string>&
+  getEndorseList() const
+  {
+    return m_endorseList;
+  }
+
+  const Name&
+  getPublicKeyName () const
+  {
+    return m_keyName;
+  }
+
+private:
+  static const ndn::OID PROFILE_EXT_OID;
+  static const ndn::OID ENDORSE_EXT_OID;
+
+  Name m_keyName;
+  Name m_signer; // signing key name
+  Profile m_profile;
+  std::vector<std::string> m_endorseList;
+
+};
+
+} // namespace chronos
+
+#endif // CHRONOS_ENDORSE_CERTIFICATE_HPP