diff --git a/src/certificate-request.cpp b/src/certificate-request.cpp
new file mode 100644
index 0000000..80b5a45
--- /dev/null
+++ b/src/certificate-request.cpp
@@ -0,0 +1,104 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2017, Regents of the University of California.
+ *
+ * This file is part of ndncert, a certificate management system based on NDN.
+ *
+ * ndncert is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * ndncert 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 General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License along with
+ * ndncert, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndncert authors and contributors.
+ */
+
+#include "certificate-request.hpp"
+#include <ndn-cxx/util/indented-stream.hpp>
+
+namespace ndn {
+namespace ndncert {
+
+CertificateRequest::CertificateRequest(const Name& caName,
+                                       const std::string& requestId,
+                                       const security::v2::Certificate& cert)
+  : m_caName(caName)
+  , m_requestId(requestId)
+  , m_status(Pending)
+  , m_cert(static_cast<const Data&>(cert))
+{
+}
+
+CertificateRequest::CertificateRequest(const Name& caName,
+                                       const std::string& requestId,
+                                       const ApplicationStatus& status,
+                                       const std::string& challengeType,
+                                       const std::string& challengeStatus,
+                                       const std::string& challengeDefinedField,
+                                       const security::v2::Certificate& cert)
+  : m_caName(caName)
+  , m_requestId(requestId)
+  , m_status(status)
+  , m_challengeType(challengeType)
+  , m_challengeStatus(challengeStatus)
+  , m_challengeDefinedField(challengeDefinedField)
+  , m_cert(static_cast<const Data&>(cert))
+{
+}
+
+std::ostream&
+operator<<(std::ostream& os, CertificateRequest::ApplicationStatus status)
+{
+  std::string statusString;
+  switch (status) {
+    case CertificateRequest::Pending: {
+      statusString = "pending";
+      break;
+    }
+    case CertificateRequest::Verifying: {
+      statusString = "verifying";
+      break;
+    }
+    case CertificateRequest::Success: {
+      statusString = "success";
+      break;
+    }
+    case CertificateRequest::Failure: {
+      statusString = "failure";
+      break;
+    }
+  }
+  os << statusString;
+  return os;
+}
+
+std::ostream&
+operator<<(std::ostream& os, const CertificateRequest& request)
+{
+  os << "Request CA name:\n";
+  os << "  " << request.getCaName() << "\n";
+  os << "Request ID:\n";
+  os << "  " << request.getRequestId() << "\n";
+  os << "Request Status:\n";
+  os << "  " << request.getStatus() << "\n";
+  if (request.getChallengeType() != "") {
+    os << "Request Challenge Type:\n";
+    os << "  " << request.getChallengeType() << "\n";
+  }
+  if (request.getChallengeStatus() != "") {
+    os << "Request Challenge Status:\n";
+    os << "  " << request.getChallengeStatus() << "\n";
+  }
+  os << "Certificate:\n";
+  util::IndentedStream os2(os, "  ");
+  os2 << request.getCert();
+  return os;
+}
+
+} // namespace ndncert
+} // namespace ndn