diff --git a/src/endorse-certificate.h b/src/endorse-certificate.h
new file mode 100644
index 0000000..28202da
--- /dev/null
+++ b/src/endorse-certificate.h
@@ -0,0 +1,74 @@
+/* -*- 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 LINKEDN_ENDORSE_CERTIFICATE_H
+#define LINKEDN_ENDORSE_CERTIFICATE_H
+
+#include <vector>
+#include <ndn.cxx/data.h>
+#include <ndn.cxx/security/certificate/identity-certificate.h>
+#include <ndn.cxx/security/certificate/certificate-extension.h>
+
+#include "profile-data.h"
+
+class EndorseExtension : public ndn::security::CertificateExtension
+{
+public:
+  EndorseExtension(const ndn::Blob & value);
+
+  virtual
+  ~EndorseExtension() {}
+};
+
+class EndorseCertificate : public ndn::security::Certificate
+{
+public:
+  EndorseCertificate(const ndn::security::IdentityCertificate& kskCertificate,
+                     const ndn::Name& signer,
+                     const ndn::Time& notBefore,
+                     const ndn::Time& notAfter);
+
+  EndorseCertificate(const EndorseCertificate& endorseCertificate);
+
+  EndorseCertificate(const ndn::Data& data);
+
+  virtual
+  ~EndorseCertificate()
+  {}
+
+  void 
+  addProfile(const ProfileData& profile);
+
+  void
+  encode();
+
+  inline const ndn::Name&
+  getSigner() const
+  { return m_signer; }
+
+  inline const std::vector<ProfileData>&
+  getProfileList() const
+  { return m_profileList; }
+
+  inline ndn::Name
+  getPublicKeyName ()
+  { return m_keyName; }
+
+private:
+  void 
+  decode();
+
+private:
+  ndn::Name m_keyName;
+  ndn::Name m_signer;
+  std::vector<ProfileData> m_profileList;
+};
+
+#endif