diff --git a/tests/unit-tests/security/certificate-cache-ttl.t.cpp b/tests/unit-tests/security/certificate-cache-ttl.t.cpp
index 6d35811..2bf11f4 100644
--- a/tests/unit-tests/security/certificate-cache-ttl.t.cpp
+++ b/tests/unit-tests/security/certificate-cache-ttl.t.cpp
@@ -27,8 +27,11 @@
 #include "../unit-test-time-fixture.hpp"
 
 namespace ndn {
+namespace security {
 namespace tests {
 
+using namespace ndn::tests;
+
 BOOST_AUTO_TEST_SUITE(Security)
 BOOST_AUTO_TEST_SUITE(TestCertificateCacheTtl)
 
@@ -39,12 +42,12 @@
     : scheduler(io)
     , cache(make_shared<CertificateCacheTtl>(ref(io), time::seconds(1)))
   {
-    cert1 = make_shared<IdentityCertificate>();
+    cert1 = make_shared<v1::IdentityCertificate>();
     Name certName1("/tmp/KEY/ksk-1/ID-CERT/1");
     cert1->setName(certName1);
     cert1->setFreshnessPeriod(time::milliseconds(500));
 
-    cert2 = make_shared<IdentityCertificate>();
+    cert2 = make_shared<v1::IdentityCertificate>();
     Name certName2("/tmp/KEY/ksk-2/ID-CERT/2");
     cert2->setName(certName2);
     cert2->setFreshnessPeriod(time::milliseconds(1000));
@@ -58,8 +61,8 @@
 
   shared_ptr<CertificateCacheTtl> cache;
 
-  shared_ptr<IdentityCertificate> cert1;
-  shared_ptr<IdentityCertificate> cert2;
+  shared_ptr<v1::IdentityCertificate> cert1;
+  shared_ptr<v1::IdentityCertificate> cert2;
 
   Name name1;
   Name name2;
@@ -135,4 +138,5 @@
 BOOST_AUTO_TEST_SUITE_END() // Security
 
 } // namespace tests
+} // namespace security
 } // namespace ndn
diff --git a/tests/unit-tests/security/certificate.t.cpp b/tests/unit-tests/security/certificate.t.cpp
deleted file mode 100644
index b975cf0..0000000
--- a/tests/unit-tests/security/certificate.t.cpp
+++ /dev/null
@@ -1,380 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2013-2015 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.
- */
-
-#include "security/certificate.hpp"
-#include "security/public-key.hpp"
-
-#include "security/key-chain.hpp"
-
-#include "security/cryptopp.hpp"
-
-#include "boost-test.hpp"
-
-using namespace std;
-namespace ndn {
-
-using namespace CryptoPP;
-
-BOOST_AUTO_TEST_SUITE(SecurityEncodeDecodeCertificate)
-
-const uint8_t PUBLIC_KEY[] = {
-0x30, 0x81, 0x9d, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
-0x01, 0x05, 0x00, 0x03, 0x81, 0x8b, 0x00, 0x30, 0x81, 0x87, 0x02, 0x81, 0x81, 0x00, 0x9e,
-0x06, 0x3e, 0x47, 0x85, 0xb2, 0x34, 0x37, 0xaa, 0x85, 0x47, 0xac, 0x03, 0x24, 0x83, 0xb5,
-0x9c, 0xa8, 0x05, 0x3a, 0x24, 0x1e, 0xeb, 0x89, 0x01, 0xbb, 0xe9, 0x9b, 0xb2, 0xc3, 0x22,
-0xac, 0x68, 0xe3, 0xf0, 0x6c, 0x02, 0xce, 0x68, 0xa6, 0xc4, 0xd0, 0xa7, 0x06, 0x90, 0x9c,
-0xaa, 0x1b, 0x08, 0x1d, 0x8b, 0x43, 0x9a, 0x33, 0x67, 0x44, 0x6d, 0x21, 0xa3, 0x1b, 0x88,
-0x9a, 0x97, 0x5e, 0x59, 0xc4, 0x15, 0x0b, 0xd9, 0x2c, 0xbd, 0x51, 0x07, 0x61, 0x82, 0xad,
-0xc1, 0xb8, 0xd7, 0xbf, 0x9b, 0xcf, 0x7d, 0x24, 0xc2, 0x63, 0xf3, 0x97, 0x17, 0xeb, 0xfe,
-0x62, 0x25, 0xba, 0x5b, 0x4d, 0x8a, 0xc2, 0x7a, 0xbd, 0x43, 0x8a, 0x8f, 0xb8, 0xf2, 0xf1,
-0xc5, 0x6a, 0x30, 0xd3, 0x50, 0x8c, 0xc8, 0x9a, 0xdf, 0xef, 0xed, 0x35, 0xe7, 0x7a, 0x62,
-0xea, 0x76, 0x7c, 0xbb, 0x08, 0x26, 0xc7, 0x02, 0x01, 0x11
-};
-
-const uint8_t CERT[] = {
-0x30, 0x81, 0xff, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x32, 0x32, 0x36,
-0x32, 0x33, 0x32, 0x32, 0x35, 0x34, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x32,
-0x32, 0x36, 0x32, 0x33, 0x32, 0x32, 0x35, 0x34, 0x5a, 0x30, 0x12, 0x30, 0x10, 0x06, 0x03,
-0x55, 0x04, 0x29, 0x13, 0x09, 0x54, 0x45, 0x53, 0x54, 0x20, 0x4e, 0x41, 0x4d, 0x45, 0x30,
-0x81, 0x9d, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
-0x05, 0x00, 0x03, 0x81, 0x8b, 0x00, 0x30, 0x81, 0x87, 0x02, 0x81, 0x81, 0x00, 0x9e, 0x06,
-0x3e, 0x47, 0x85, 0xb2, 0x34, 0x37, 0xaa, 0x85, 0x47, 0xac, 0x03, 0x24, 0x83, 0xb5, 0x9c,
-0xa8, 0x05, 0x3a, 0x24, 0x1e, 0xeb, 0x89, 0x01, 0xbb, 0xe9, 0x9b, 0xb2, 0xc3, 0x22, 0xac,
-0x68, 0xe3, 0xf0, 0x6c, 0x02, 0xce, 0x68, 0xa6, 0xc4, 0xd0, 0xa7, 0x06, 0x90, 0x9c, 0xaa,
-0x1b, 0x08, 0x1d, 0x8b, 0x43, 0x9a, 0x33, 0x67, 0x44, 0x6d, 0x21, 0xa3, 0x1b, 0x88, 0x9a,
-0x97, 0x5e, 0x59, 0xc4, 0x15, 0x0b, 0xd9, 0x2c, 0xbd, 0x51, 0x07, 0x61, 0x82, 0xad, 0xc1,
-0xb8, 0xd7, 0xbf, 0x9b, 0xcf, 0x7d, 0x24, 0xc2, 0x63, 0xf3, 0x97, 0x17, 0xeb, 0xfe, 0x62,
-0x25, 0xba, 0x5b, 0x4d, 0x8a, 0xc2, 0x7a, 0xbd, 0x43, 0x8a, 0x8f, 0xb8, 0xf2, 0xf1, 0xc5,
-0x6a, 0x30, 0xd3, 0x50, 0x8c, 0xc8, 0x9a, 0xdf, 0xef, 0xed, 0x35, 0xe7, 0x7a, 0x62, 0xea,
-0x76, 0x7c, 0xbb, 0x08, 0x26, 0xc7, 0x02, 0x01, 0x11, 0x30, 0x25, 0x30, 0x23, 0x06, 0x06,
-0x2b, 0x06, 0x01, 0x05, 0x20, 0x01, 0x01, 0x01, 0xff, 0x04, 0x16, 0x30, 0x14, 0x04, 0x0c,
-0x2f, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x2f, 0x6b, 0x69, 0x74, 0x74, 0x79, 0x02, 0x01, 0x00,
-0x02, 0x01, 0x0a
-};
-
-const std::string CERT_INFO = "Certificate name:\n"
-  "  /\n"
-  "Validity:\n"
-  "  NotBefore: 20131226T232254\n"
-  "  NotAfter: 20131226T232254\n"
-  "Subject Description:\n"
-  "  2.5.4.41: TEST NAME\n"
-  "Public key bits: (RSA)\n"
-  "  MIGdMA0GCSqGSIb3DQEBAQUAA4GLADCBhwKBgQCeBj5HhbI0N6qFR6wDJIO1nKgF\n"
-  "  OiQe64kBu+mbssMirGjj8GwCzmimxNCnBpCcqhsIHYtDmjNnRG0hoxuImpdeWcQV\n"
-  "  C9ksvVEHYYKtwbjXv5vPfSTCY/OXF+v+YiW6W02Kwnq9Q4qPuPLxxWow01CMyJrf\n"
-  "  7+0153pi6nZ8uwgmxwIB\n"
-  "Signature Information:\n"
-  "  Signature Type: Unknown Signature Type\n";
-
-BOOST_AUTO_TEST_CASE(Encode)
-{
-  ndn::Certificate certificate;
-
-  // validity
-  // not before 12/26/2013 @ 11:22pm
-  certificate.setNotBefore(time::fromUnixTimestamp(time::milliseconds(1388100174000LL)));
-  // not after 12/26/2013 @ 11:22pm
-  certificate.setNotAfter(time::fromUnixTimestamp(time::milliseconds(1388100174000LL)));
-
-  // subject
-  certificate.addSubjectDescription(CertificateSubjectDescription(oid::ATTRIBUTE_NAME,
-                                                                  "TEST NAME"));
-
-  // publicKeyInfo
-  ndn::PublicKey key(PUBLIC_KEY, sizeof(PUBLIC_KEY));
-  certificate.setPublicKeyInfo(key);
-
-  // extensions
-  BOOST_REQUIRE_NO_THROW({
-    std::string extenstionValue;
-    StringSink sink(extenstionValue);
-    DERSequenceEncoder seq(sink);
-    {
-      std::string name("/hello/kitty");
-      DEREncodeOctetString(seq, reinterpret_cast<const uint8_t*>(name.c_str()), name.size());
-      // trustClass
-      DEREncodeUnsigned<uint32_t>(seq, 0);
-      // trustLevel
-      DEREncodeUnsigned<uint32_t>(seq, 10);
-    }
-    seq.MessageEnd();
-
-    //create a randome extension
-    certificate.addExtension(CertificateExtension(OID("1.3.6.1.5.32.1"), true,
-      reinterpret_cast<const uint8_t*>(extenstionValue.c_str()),
-      extenstionValue.size()));
-  });
-  // RSA::PublicKey p;
-  // StringSource source(T, sizeof(T), true);
-  // p.Load(source);
-
-  BOOST_REQUIRE_NO_THROW(certificate.encode());
-
-  // ofstream of("cert.out");
-  // of.write((const char*certificate.getContent().value(), certificate.getContent().value_size());
-
-  // const Block &wire = i.wireEncode();
-  BOOST_REQUIRE_EQUAL_COLLECTIONS(CERT, CERT+sizeof(CERT),
-                                  certificate.getContent().value_begin(),
-                                  certificate.getContent().value_end());
-
-  std::ostringstream os;
-  os << certificate;
-  std::string info(os.str());
-
-  BOOST_CHECK_EQUAL(CERT_INFO, info);
-}
-
-const unsigned char REAL_CERT[] = {
-0x30, 0x82, 0x01, 0x63, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x31, 0x30,
-0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34, 0x31,
-0x31, 0x30, 0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x30, 0x19, 0x30, 0x17, 0x06,
-0x03, 0x55, 0x04, 0x29, 0x13, 0x10, 0x4e, 0x44, 0x4e, 0x20, 0x54, 0x65, 0x73, 0x74, 0x62,
-0x65, 0x64, 0x20, 0x52, 0x6f, 0x6f, 0x74, 0x30, 0x82, 0x01, 0x20, 0x30, 0x0d, 0x06, 0x09,
-0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0d,
-0x00, 0x30, 0x82, 0x01, 0x08, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd3, 0xac, 0x7e, 0x7a, 0x5c,
-0x33, 0x58, 0x21, 0xda, 0xe0, 0x8d, 0xdb, 0xca, 0xb6, 0x02, 0x30, 0x02, 0x15, 0xc5, 0x0a,
-0x51, 0x54, 0xbb, 0x8e, 0x5e, 0x9d, 0x21, 0xf8, 0x14, 0xbe, 0xe4, 0x63, 0x60, 0x31, 0x53,
-0xe2, 0xef, 0xee, 0x34, 0xa3, 0x8c, 0xd2, 0x24, 0x6f, 0xa4, 0x89, 0x4f, 0x02, 0x20, 0x7d,
-0x66, 0xb6, 0x3f, 0x11, 0x40, 0x0c, 0xc1, 0x5f, 0xd8, 0x45, 0x23, 0x95, 0x40, 0xc8, 0xe0,
-0xbc, 0x9d, 0x2f, 0x03, 0xf1, 0x83, 0x9f, 0x07, 0x0b, 0x76, 0xc9, 0x10, 0xd9, 0x3e, 0x0b,
-0x75, 0x13, 0x93, 0xe9, 0xc9, 0x85, 0x01, 0x88, 0x36, 0x2e, 0xab, 0xfc, 0xe6, 0x24, 0x32,
-0xfc, 0xc6, 0x3c, 0x40, 0x97, 0x1a, 0xcc, 0xcd, 0x53, 0xaa, 0x0f, 0xfb, 0xa3, 0xfe, 0xf9,
-0x24, 0x70, 0x13, 0x3f, 0x4f, 0x5b, 0x7d, 0x43, 0xaa, 0x75, 0x0a, 0x94, 0x72, 0xab, 0xe1,
-0x8c, 0x45, 0xb5, 0x78, 0x10, 0x01, 0xef, 0x1f, 0xb3, 0x05, 0x6f, 0xa6, 0xc3, 0xac, 0x7f,
-0x6d, 0xf0, 0x31, 0xc4, 0x83, 0xb3, 0x4f, 0x50, 0x26, 0x92, 0x40, 0x1a, 0xdd, 0xec, 0xfb,
-0xcb, 0xef, 0x63, 0xfe, 0x41, 0xd8, 0x8d, 0x1f, 0xdc, 0xec, 0xfc, 0x48, 0x95, 0xcc, 0x09,
-0x1e, 0x30, 0x6e, 0x22, 0x9e, 0x24, 0x97, 0x2e, 0xe6, 0x0c, 0xdf, 0x3d, 0x20, 0x32, 0xaa,
-0x9c, 0xc9, 0x45, 0x14, 0xaf, 0xaa, 0xf5, 0x17, 0xd2, 0x01, 0x98, 0x33, 0xbe, 0x2a, 0x9f,
-0x7b, 0x9d, 0x98, 0x7c, 0x54, 0x22, 0xfe, 0x72, 0x72, 0x04, 0xc3, 0x2c, 0xc0, 0x14, 0x0b,
-0xa9, 0x40, 0x7e, 0x46, 0xa1, 0x75, 0x16, 0x1a, 0x27, 0x9e, 0xf2, 0x82, 0x96, 0xc0, 0x7d,
-0xaf, 0x18, 0x75, 0xfb, 0xbb, 0xab, 0x16, 0x66, 0xc0, 0xa9, 0xd7, 0x93, 0x4c, 0x48, 0x6d,
-0xce, 0x0b, 0x88, 0xd4, 0x21, 0x93, 0x84, 0x89, 0x55, 0x05, 0xd5, 0x02, 0x01, 0x11
-};
-
-const std::string REAL_CERT_INFO = "Certificate name:\n"
-"  /tmp\n"
-"Validity:\n"
-"  NotBefore: 20131101T171122\n"
-"  NotAfter: 20141101T171122\n"
-"Subject Description:\n"
-"  2.5.4.41: NDN Testbed Root\n"
-"Public key bits: (RSA)\n"
-"  MIIBIDANBgkqhkiG9w0BAQEFAAOCAQ0AMIIBCAKCAQEA06x+elwzWCHa4I3byrYC\n"
-"  MAIVxQpRVLuOXp0h+BS+5GNgMVPi7+40o4zSJG+kiU8CIH1mtj8RQAzBX9hFI5VA\n"
-"  yOC8nS8D8YOfBwt2yRDZPgt1E5PpyYUBiDYuq/zmJDL8xjxAlxrMzVOqD/uj/vkk\n"
-"  cBM/T1t9Q6p1CpRyq+GMRbV4EAHvH7MFb6bDrH9t8DHEg7NPUCaSQBrd7PvL72P+\n"
-"  QdiNH9zs/EiVzAkeMG4iniSXLuYM3z0gMqqcyUUUr6r1F9IBmDO+Kp97nZh8VCL+\n"
-"  cnIEwyzAFAupQH5GoXUWGiee8oKWwH2vGHX7u6sWZsCp15NMSG3OC4jUIZOEiVUF\n"
-"  1QIB\n"
-"Signature Information:\n"
-"  Signature Type: Unknown Signature Type\n";
-
-const uint8_t SELF_SIGNED_ECDSA_CERT[] = {
-0x06, 0xfd, 0x01, 0x5b, 0x07, 0x33, 0x08, 0x05, 0x65, 0x63, 0x64, 0x73, 0x61, 0x08, 0x03,
-0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31, 0x34, 0x31, 0x36, 0x35, 0x39,
-0x34, 0x35, 0x35, 0x32, 0x38, 0x32, 0x37, 0x08, 0x07, 0x49, 0x44, 0x2d, 0x43, 0x45, 0x52,
-0x54, 0x08, 0x09, 0xfd, 0x00, 0x00, 0x01, 0x49, 0xd3, 0x9d, 0x78, 0x00, 0x14, 0x03, 0x18,
-0x01, 0x02, 0x15, 0xa5, 0x30, 0x81, 0xa2, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34,
-0x31, 0x31, 0x32, 0x31, 0x31, 0x38, 0x32, 0x39, 0x31, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30,
-0x33, 0x34, 0x31, 0x31, 0x31, 0x36, 0x31, 0x38, 0x32, 0x39, 0x31, 0x32, 0x5a, 0x30, 0x21,
-0x30, 0x1f, 0x06, 0x03, 0x55, 0x04, 0x29, 0x13, 0x18, 0x2f, 0x65, 0x63, 0x64, 0x73, 0x61,
-0x2f, 0x6b, 0x73, 0x6b, 0x2d, 0x31, 0x34, 0x31, 0x36, 0x35, 0x39, 0x34, 0x35, 0x35, 0x32,
-0x38, 0x32, 0x37, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
-0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04,
-0x83, 0xe5, 0x81, 0x19, 0xd9, 0xfa, 0x64, 0x40, 0xad, 0x7c, 0x93, 0xfc, 0x15, 0x90, 0x6b,
-0x38, 0x1e, 0xc5, 0xca, 0xb1, 0x6b, 0x0b, 0x1f, 0x64, 0xbf, 0x48, 0xaa, 0xd0, 0x91, 0x5c,
-0x24, 0xd6, 0x78, 0x40, 0xfd, 0x95, 0x5d, 0x54, 0x64, 0xe1, 0x2d, 0x0e, 0x98, 0x66, 0x1d,
-0x7a, 0xb0, 0x61, 0x17, 0x05, 0x26, 0x13, 0x63, 0x25, 0x7c, 0xda, 0x87, 0x11, 0xc9, 0x67,
-0xcd, 0x12, 0x05, 0xf0, 0x16, 0x2f, 0x1b, 0x01, 0x03, 0x1c, 0x2a, 0x07, 0x28, 0x08, 0x05,
-0x65, 0x63, 0x64, 0x73, 0x61, 0x08, 0x03, 0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b,
-0x2d, 0x31, 0x34, 0x31, 0x36, 0x35, 0x39, 0x34, 0x35, 0x35, 0x32, 0x38, 0x32, 0x37, 0x08,
-0x07, 0x49, 0x44, 0x2d, 0x43, 0x45, 0x52, 0x54, 0x17, 0x47, 0x30, 0x45, 0x02, 0x21, 0x00,
-0x9b, 0xae, 0xf4, 0x87, 0x55, 0xaa, 0x78, 0xbf, 0x00, 0xff, 0x1a, 0xbe, 0x90, 0x46, 0x6e,
-0xdd, 0xe6, 0x3b, 0x44, 0xfd, 0x41, 0x04, 0x86, 0xcc, 0x6a, 0x8b, 0x5a, 0x25, 0xbb, 0xf1,
-0x55, 0xcd, 0x02, 0x20, 0x0e, 0x67, 0xd8, 0x86, 0xe8, 0x7c, 0x90, 0x3c, 0x13, 0xfd, 0x36,
-0x9c, 0xbc, 0xa1, 0xc3, 0x7c, 0xe0, 0x0c, 0x6d, 0x64, 0xac, 0xdb, 0x69, 0x99, 0xde, 0x80,
-0x35, 0x3f, 0xf4, 0x6a, 0xcd, 0x6f
-};
-
-const std::string SELF_SIGNED_ECDSA_CERT_INFO =
-"Certificate name:\n"
-"  /ecdsa/KEY/ksk-1416594552827/ID-CERT/%FD%00%00%01I%D3%9Dx%00\n"
-"Validity:\n"
-"  NotBefore: 20141121T182912\n"
-"  NotAfter: 20341116T182912\n"
-"Subject Description:\n"
-"  2.5.4.41: /ecdsa/ksk-1416594552827\n"
-"Public key bits: (ECDSA)\n"
-"  MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEg+WBGdn6ZECtfJP8FZBrOB7FyrFr\n"
-"  Cx9kv0iq0JFcJNZ4QP2VXVRk4S0OmGYderBhFwUmE2MlfNqHEclnzRIF\n"
-"Signature Information:\n"
-"  Signature Type: SignatureSha256WithEcdsa\n"
-"  Key Locator: (Self-Signed) /ecdsa/KEY/ksk-1416594552827/ID-CERT\n";
-
-const uint8_t RSA_CERT[] = {
-0x06, 0xfd, 0x02, 0xd7, 0x07, 0x38, 0x08, 0x03, 0x6e, 0x64, 0x6e, 0x08, 0x03, 0x4b, 0x45,
-0x59, 0x08, 0x05, 0x73, 0x69, 0x74, 0x65, 0x31, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31,
-0x34, 0x31, 0x36, 0x34, 0x32, 0x35, 0x33, 0x37, 0x37, 0x30, 0x39, 0x34, 0x08, 0x07, 0x49,
-0x44, 0x2d, 0x43, 0x45, 0x52, 0x54, 0x08, 0x09, 0xfd, 0x00, 0x00, 0x01, 0x49, 0xc9, 0x8b,
-0x2e, 0x73, 0x14, 0x03, 0x18, 0x01, 0x02, 0x15, 0xfd, 0x01, 0x61, 0x30, 0x82, 0x01, 0x5d,
-0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34, 0x31, 0x31, 0x31, 0x39, 0x31, 0x39, 0x33,
-0x33, 0x30, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x35, 0x31, 0x31, 0x31, 0x39, 0x31,
-0x39, 0x33, 0x33, 0x30, 0x32, 0x5a, 0x30, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x29,
-0x13, 0x0a, 0x2f, 0x6e, 0x64, 0x6e, 0x2f, 0x73, 0x69, 0x74, 0x65, 0x31, 0x30, 0x82, 0x01,
-0x20, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05,
-0x00, 0x03, 0x82, 0x01, 0x0d, 0x00, 0x30, 0x82, 0x01, 0x08, 0x02, 0x82, 0x01, 0x01, 0x00,
-0xb6, 0x54, 0x7e, 0xe8, 0xf2, 0x91, 0x7d, 0xc1, 0x6d, 0xcb, 0x25, 0x44, 0x97, 0x90, 0xdc,
-0x78, 0x15, 0x0e, 0xef, 0xb5, 0xe7, 0xfd, 0x09, 0x2c, 0xf8, 0xd5, 0x9c, 0x2f, 0xe5, 0xa6,
-0xae, 0x9d, 0x7e, 0x95, 0x2d, 0xfc, 0xc7, 0xc3, 0x43, 0x46, 0xb0, 0x6f, 0x53, 0xcd, 0xcd,
-0x6a, 0x29, 0x1d, 0x95, 0xa1, 0x62, 0xcd, 0xa9, 0xf2, 0xf8, 0xe2, 0xfa, 0x8b, 0x5d, 0xfe,
-0xa1, 0x2b, 0x15, 0x3f, 0x7f, 0x71, 0xe6, 0x3e, 0xb9, 0xb1, 0x29, 0xd1, 0x22, 0x6f, 0x56,
-0xdf, 0xb6, 0x85, 0xaf, 0xd4, 0xb3, 0x67, 0x8b, 0x94, 0xb8, 0x83, 0xcb, 0x72, 0x86, 0xc4,
-0xf2, 0x86, 0xb2, 0x7c, 0x94, 0xbc, 0x38, 0x7b, 0x8c, 0x92, 0x86, 0x36, 0x83, 0x0e, 0x11,
-0x8c, 0x95, 0x49, 0xff, 0xcc, 0x16, 0x62, 0xdb, 0x55, 0x40, 0x7f, 0xc8, 0x8d, 0xe4, 0x3f,
-0x87, 0x02, 0x87, 0xaf, 0xf6, 0x2f, 0x8a, 0x7d, 0x74, 0x10, 0xd3, 0xbb, 0xa3, 0xfe, 0x5a,
-0x7b, 0x8f, 0x56, 0x09, 0x8b, 0x49, 0x46, 0x9f, 0x7d, 0x55, 0xa3, 0x4a, 0xe8, 0x22, 0x7b,
-0x80, 0x8a, 0x6f, 0xde, 0x9f, 0xfb, 0x2f, 0xeb, 0xf7, 0x29, 0x8a, 0x38, 0x67, 0x41, 0xae,
-0x21, 0x7a, 0xe3, 0x7b, 0x96, 0x1a, 0x90, 0x35, 0x7d, 0x04, 0xaa, 0x4d, 0x9f, 0xe6, 0xd6,
-0x00, 0x17, 0x4e, 0x02, 0x34, 0x6c, 0x56, 0x3a, 0x81, 0x3c, 0xb4, 0x7f, 0x98, 0x48, 0x22,
-0xa0, 0x9f, 0x53, 0x35, 0xf9, 0x4e, 0xae, 0x8f, 0xc3, 0xfa, 0x0b, 0x93, 0xd4, 0x55, 0x78,
-0x05, 0xb0, 0x40, 0x44, 0x48, 0x74, 0xb7, 0x9b, 0x2d, 0x65, 0xf0, 0x3d, 0x2e, 0x87, 0x2b,
-0x48, 0x29, 0x12, 0x85, 0xf0, 0xaf, 0xc4, 0xdc, 0x73, 0xce, 0x18, 0x8b, 0xd9, 0x4c, 0x60,
-0x15, 0x51, 0xae, 0x47, 0x1e, 0x2b, 0x54, 0xde, 0xf6, 0xba, 0x77, 0x30, 0x5d, 0x68, 0x9a,
-0xfb, 0x02, 0x01, 0x11, 0x16, 0x2d, 0x1b, 0x01, 0x01, 0x1c, 0x28, 0x07, 0x26, 0x08, 0x03,
-0x6e, 0x64, 0x6e, 0x08, 0x03, 0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31,
-0x34, 0x31, 0x36, 0x34, 0x32, 0x35, 0x32, 0x39, 0x35, 0x35, 0x34, 0x36, 0x08, 0x07, 0x49,
-0x44, 0x2d, 0x43, 0x45, 0x52, 0x54, 0x17, 0xfd, 0x01, 0x00, 0x26, 0x40, 0xbc, 0xf0, 0x28,
-0x12, 0x69, 0x94, 0x11, 0x13, 0xff, 0x47, 0x2c, 0x6b, 0x12, 0xdd, 0xfa, 0x60, 0x92, 0xe9,
-0x59, 0x10, 0x98, 0xd8, 0x11, 0x2a, 0xf0, 0x25, 0xb0, 0x03, 0xb2, 0xda, 0xd3, 0xb6, 0xa9,
-0xfb, 0x8b, 0xc3, 0x6f, 0xfb, 0xb4, 0x93, 0x9b, 0x24, 0x9f, 0x7e, 0x63, 0x8a, 0x37, 0xea,
-0x88, 0x74, 0xac, 0x0c, 0x04, 0x5b, 0xa2, 0x39, 0x0c, 0xa1, 0x9e, 0x0e, 0xa2, 0xd6, 0x74,
-0xca, 0xc4, 0x92, 0x64, 0x9f, 0xc2, 0x68, 0x56, 0xef, 0xc5, 0x11, 0xe8, 0x7a, 0xf3, 0x21,
-0xde, 0x88, 0x40, 0x70, 0x2b, 0x44, 0xe0, 0xcb, 0x3b, 0x33, 0xc6, 0x53, 0x65, 0x70, 0x56,
-0x08, 0xe2, 0x22, 0x70, 0x9e, 0xe0, 0x38, 0x18, 0xa8, 0x7c, 0x7d, 0x09, 0x15, 0xac, 0xf1,
-0x44, 0x63, 0x5d, 0xd5, 0x59, 0xf4, 0xeb, 0x60, 0x6c, 0x6e, 0x77, 0x36, 0x20, 0x2a, 0xe2,
-0xd1, 0x2d, 0xa1, 0x7d, 0xd4, 0x6d, 0x29, 0x2d, 0x88, 0xde, 0x9e, 0xf8, 0x64, 0x41, 0x6a,
-0xeb, 0x9f, 0x3b, 0x52, 0x06, 0xb1, 0x94, 0x09, 0x3b, 0xc9, 0xba, 0xa0, 0x05, 0x31, 0x2d,
-0x49, 0x17, 0x5b, 0xc1, 0x62, 0xf5, 0x19, 0xce, 0x27, 0x7b, 0xe8, 0x4b, 0xeb, 0x80, 0x36,
-0xf3, 0xd7, 0xe9, 0x59, 0x22, 0x50, 0x5a, 0x14, 0xb0, 0x1a, 0xa5, 0x6b, 0x33, 0xb2, 0x83,
-0x72, 0x11, 0xf4, 0xd5, 0xd2, 0x32, 0x93, 0x94, 0xb6, 0x8d, 0xed, 0xcd, 0xce, 0x54, 0x79,
-0xe8, 0xc3, 0x3c, 0xa8, 0xc6, 0x71, 0xa7, 0x61, 0xba, 0x70, 0x44, 0x94, 0xc9, 0xfc, 0xd0,
-0x20, 0x00, 0x87, 0xdc, 0xf3, 0x3c, 0x47, 0x1b, 0x4f, 0x91, 0x4c, 0xc7, 0x49, 0xb7, 0xe4,
-0xe3, 0x84, 0xb7, 0x82, 0x52, 0xec, 0x91, 0xa9, 0x28, 0x38, 0x2d, 0x48, 0x89, 0xc7, 0xcf,
-0xfa, 0x63, 0x0b, 0xf0, 0x62, 0x51, 0xac, 0xe9, 0xdb, 0xfd, 0x1c
-};
-
-const std::string RSA_CERT_INFO =
-"Certificate name:\n"
-"  /ndn/KEY/site1/ksk-1416425377094/ID-CERT/%FD%00%00%01I%C9%8B.s\n"
-"Validity:\n"
-"  NotBefore: 20141119T193302\n"
-"  NotAfter: 20151119T193302\n"
-"Subject Description:\n"
-"  2.5.4.41: /ndn/site1\n"
-"Public key bits: (RSA)\n"
-"  MIIBIDANBgkqhkiG9w0BAQEFAAOCAQ0AMIIBCAKCAQEAtlR+6PKRfcFtyyVEl5Dc\n"
-"  eBUO77Xn/Qks+NWcL+Wmrp1+lS38x8NDRrBvU83NaikdlaFizany+OL6i13+oSsV\n"
-"  P39x5j65sSnRIm9W37aFr9SzZ4uUuIPLcobE8oayfJS8OHuMkoY2gw4RjJVJ/8wW\n"
-"  YttVQH/IjeQ/hwKHr/Yvin10ENO7o/5ae49WCYtJRp99VaNK6CJ7gIpv3p/7L+v3\n"
-"  KYo4Z0GuIXrje5YakDV9BKpNn+bWABdOAjRsVjqBPLR/mEgioJ9TNflOro/D+guT\n"
-"  1FV4BbBAREh0t5stZfA9LocrSCkShfCvxNxzzhiL2UxgFVGuRx4rVN72uncwXWia\n"
-"  +wIB\n"
-"Signature Information:\n"
-"  Signature Type: SignatureSha256WithRsa\n"
-"  Key Locator: (Name) /ndn/KEY/ksk-1416425295546/ID-CERT\n";
-
-BOOST_AUTO_TEST_CASE(Decode)
-{
-  ndn::Data data("/tmp");
-  data.setContent(REAL_CERT, sizeof(REAL_CERT));
-
-  ndn::Certificate certificate(data);
-
-  std::ostringstream os;
-  os << certificate;
-  std::string info(os.str());
-
-  BOOST_CHECK_EQUAL(REAL_CERT_INFO, info);
-
-
-  ndn::Block selfSignedCertBlock(SELF_SIGNED_ECDSA_CERT, sizeof(SELF_SIGNED_ECDSA_CERT));
-  ndn::Certificate selfSignedCert;
-  selfSignedCert.wireDecode(selfSignedCertBlock);
-
-  std::ostringstream selfSignedCertOs;
-  selfSignedCertOs << selfSignedCert;
-  std::string selfSignedCertInfo(selfSignedCertOs.str());
-
-  BOOST_CHECK_EQUAL(SELF_SIGNED_ECDSA_CERT_INFO, selfSignedCertInfo);
-
-
-  ndn::Block rsaCertBlock(RSA_CERT, sizeof(RSA_CERT));
-  ndn::Certificate rsaCert;
-  rsaCert.wireDecode(rsaCertBlock);
-
-  std::ostringstream rsaCertOs;
-  rsaCertOs << rsaCert;
-  std::string rsaCertInfo(rsaCertOs.str());
-
-  BOOST_CHECK_EQUAL(RSA_CERT_INFO, rsaCertInfo);
-}
-
-const uint8_t WRONG_CERT[] = { // first byte is wrong and an error will be thrown out
-0x31, 0x82, 0x01, 0x63, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x31, 0x30,
-0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34, 0x31,
-0x31, 0x30, 0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x30, 0x19, 0x30, 0x17, 0x06,
-0x03, 0x55, 0x04, 0x29, 0x13, 0x10, 0x4e, 0x44, 0x4e, 0x20, 0x54, 0x65, 0x73, 0x74, 0x62,
-0x65, 0x64, 0x20, 0x52, 0x6f, 0x6f, 0x74, 0x30, 0x82, 0x01, 0x20, 0x30, 0x0d, 0x06, 0x09,
-0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0d,
-0x00, 0x30, 0x82, 0x01, 0x08, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd3, 0xac, 0x7e, 0x7a, 0x5c,
-0x33, 0x58, 0x21, 0xda, 0xe0, 0x8d, 0xdb, 0xca, 0xb6, 0x02, 0x30, 0x02, 0x15, 0xc5, 0x0a,
-0x51, 0x54, 0xbb, 0x8e, 0x5e, 0x9d, 0x21, 0xf8, 0x14, 0xbe, 0xe4, 0x63, 0x60, 0x31, 0x53,
-0xe2, 0xef, 0xee, 0x34, 0xa3, 0x8c, 0xd2, 0x24, 0x6f, 0xa4, 0x89, 0x4f, 0x02, 0x20, 0x7d,
-0x66, 0xb6, 0x3f, 0x11, 0x40, 0x0c, 0xc1, 0x5f, 0xd8, 0x45, 0x23, 0x95, 0x40, 0xc8, 0xe0,
-0xbc, 0x9d, 0x2f, 0x03, 0xf1, 0x83, 0x9f, 0x07, 0x0b, 0x76, 0xc9, 0x10, 0xd9, 0x3e, 0x0b,
-0x75, 0x13, 0x93, 0xe9, 0xc9, 0x85, 0x01, 0x88, 0x36, 0x2e, 0xab, 0xfc, 0xe6, 0x24, 0x32,
-0xfc, 0xc6, 0x3c, 0x40, 0x97, 0x1a, 0xcc, 0xcd, 0x53, 0xaa, 0x0f, 0xfb, 0xa3, 0xfe, 0xf9,
-0x24, 0x70, 0x13, 0x3f, 0x4f, 0x5b, 0x7d, 0x43, 0xaa, 0x75, 0x0a, 0x94, 0x72, 0xab, 0xe1,
-0x8c, 0x45, 0xb5, 0x78, 0x10, 0x01, 0xef, 0x1f, 0xb3, 0x05, 0x6f, 0xa6, 0xc3, 0xac, 0x7f,
-0x6d, 0xf0, 0x31, 0xc4, 0x83, 0xb3, 0x4f, 0x50, 0x26, 0x92, 0x40, 0x1a, 0xdd, 0xec, 0xfb,
-0xcb, 0xef, 0x63, 0xfe, 0x41, 0xd8, 0x8d, 0x1f, 0xdc, 0xec, 0xfc, 0x48, 0x95, 0xcc, 0x09,
-0x1e, 0x30, 0x6e, 0x22, 0x9e, 0x24, 0x97, 0x2e, 0xe6, 0x0c, 0xdf, 0x3d, 0x20, 0x32, 0xaa,
-0x9c, 0xc9, 0x45, 0x14, 0xaf, 0xaa, 0xf5, 0x17, 0xd2, 0x01, 0x98, 0x33, 0xbe, 0x2a, 0x9f,
-0x7b, 0x9d, 0x98, 0x7c, 0x54, 0x22, 0xfe, 0x72, 0x72, 0x04, 0xc3, 0x2c, 0xc0, 0x14, 0x0b,
-0xa9, 0x40, 0x7e, 0x46, 0xa1, 0x75, 0x16, 0x1a, 0x27, 0x9e, 0xf2, 0x82, 0x96, 0xc0, 0x7d,
-0xaf, 0x18, 0x75, 0xfb, 0xbb, 0xab, 0x16, 0x66, 0xc0, 0xa9, 0xd7, 0x93, 0x4c, 0x48, 0x6d,
-0xce, 0x0b, 0x88, 0xd4, 0x21, 0x93, 0x84, 0x89, 0x55, 0x05, 0xd5, 0x02, 0x01, 0x11
-};
-
-BOOST_AUTO_TEST_CASE(DecodeError)
-{
-  ndn::Data data("/tmp");
-  data.setContent(WRONG_CERT, sizeof(WRONG_CERT));
-
-  BOOST_CHECK_THROW(ndn::Certificate certificate(data), Certificate::Error);
-}
-
-
-BOOST_AUTO_TEST_SUITE_END()
-
-} // namespace ndn
diff --git a/tests/unit-tests/security/conf/checker.t.cpp b/tests/unit-tests/security/conf/checker.t.cpp
index ba18323..fddfb83 100644
--- a/tests/unit-tests/security/conf/checker.t.cpp
+++ b/tests/unit-tests/security/conf/checker.t.cpp
@@ -363,12 +363,12 @@
   Name identity("/SecurityTestConfChecker/FixedSignerCheckerTest1");
   BOOST_REQUIRE(addIdentity(identity, EcdsaKeyParams()));
   Name certName = m_keyChain.getDefaultCertificateNameForIdentity(identity);
-  shared_ptr<IdentityCertificate> cert1 = m_keyChain.getCertificate(certName);
+  shared_ptr<v1::IdentityCertificate> cert1 = m_keyChain.getCertificate(certName);
 
   Name identity2("/SecurityTestConfChecker/FixedSignerCheckerTest1Wrong");
   BOOST_REQUIRE(addIdentity(identity2, RsaKeyParams()));
   Name certName2 = m_keyChain.getDefaultCertificateNameForIdentity(identity2);
-  shared_ptr<IdentityCertificate> cert2 = m_keyChain.getCertificate(certName2);
+  shared_ptr<v1::IdentityCertificate> cert2 = m_keyChain.getCertificate(certName2);
 
   Name packetName("/Test/Data");
 
@@ -382,10 +382,10 @@
                   security::SigningInfo(security::SigningInfo::SIGNER_TYPE_ID,
                                         identity2));
 
-  std::vector<shared_ptr<IdentityCertificate> > certSet1;
+  std::vector<shared_ptr<v1::IdentityCertificate> > certSet1;
   certSet1.push_back(cert1);
 
-  std::vector<shared_ptr<IdentityCertificate> > certSet2;
+  std::vector<shared_ptr<v1::IdentityCertificate> > certSet2;
   certSet2.push_back(cert2);
 
 
diff --git a/tests/unit-tests/security/digest-sha256.t.cpp b/tests/unit-tests/security/digest-sha256.t.cpp
index f6e2eb0..67b6730 100644
--- a/tests/unit-tests/security/digest-sha256.t.cpp
+++ b/tests/unit-tests/security/digest-sha256.t.cpp
@@ -39,7 +39,7 @@
   using namespace CryptoPP;
 
   char content[6] = "1234\n";
-  ConstBufferPtr buf = crypto::sha256(reinterpret_cast<uint8_t*>(content), 5);
+  ConstBufferPtr buf = crypto::computeSha256Digest(reinterpret_cast<uint8_t*>(content), 5);
 
   BOOST_CHECK_EQUAL(SHA256_RESULT, toHex(buf->buf(), buf->size(), false));
 }
diff --git a/tests/unit-tests/security/dummy-keychain.cpp b/tests/unit-tests/security/dummy-keychain.cpp
index 27eccb2..524fc0c 100644
--- a/tests/unit-tests/security/dummy-keychain.cpp
+++ b/tests/unit-tests/security/dummy-keychain.cpp
@@ -105,20 +105,20 @@
 }
 
 void
-DummyPublicInfo::addKey(const Name& keyName, const PublicKey& publicKey)
+DummyPublicInfo::addKey(const Name& keyName, const v1::PublicKey& publicKey)
 {
 }
 
-shared_ptr<PublicKey>
+shared_ptr<v1::PublicKey>
 DummyPublicInfo::getPublicKey(const Name& keyName)
 {
-  static shared_ptr<PublicKey> publicKey = nullptr;
+  static shared_ptr<v1::PublicKey> publicKey = nullptr;
   if (publicKey == nullptr) {
     typedef boost::iostreams::stream<boost::iostreams::array_source> arrayStream;
     arrayStream
     is(reinterpret_cast<const char*>(DUMMY_CERT), sizeof(DUMMY_CERT));
-    auto cert = io::load<IdentityCertificate>(is, io::NO_ENCODING);
-    publicKey = make_shared<PublicKey>(cert->getPublicKeyInfo());
+    auto cert = io::load<v1::IdentityCertificate>(is, io::NO_ENCODING);
+    publicKey = make_shared<v1::PublicKey>(cert->getPublicKeyInfo());
   }
 
   return publicKey;
@@ -137,19 +137,19 @@
 }
 
 void
-DummyPublicInfo::addCertificate(const IdentityCertificate& certificate)
+DummyPublicInfo::addCertificate(const v1::IdentityCertificate& certificate)
 {
 }
 
-shared_ptr<IdentityCertificate>
+shared_ptr<v1::IdentityCertificate>
 DummyPublicInfo::getCertificate(const Name& certificateName)
 {
-  static shared_ptr<IdentityCertificate> cert = nullptr;
+  static shared_ptr<v1::IdentityCertificate> cert = nullptr;
   if (cert == nullptr) {
     typedef boost::iostreams::stream<boost::iostreams::array_source> arrayStream;
     arrayStream
     is(reinterpret_cast<const char*>(DUMMY_CERT), sizeof(DUMMY_CERT));
-    cert = io::load<IdentityCertificate>(is, io::BASE_64);
+    cert = io::load<v1::IdentityCertificate>(is, io::BASE_64);
   }
 
   return cert;
@@ -316,7 +316,7 @@
 {
 }
 
-shared_ptr<PublicKey>
+shared_ptr<v1::PublicKey>
 DummyTpm::getPublicKeyFromTpm(const Name& keyName)
 {
   return nullptr;
diff --git a/tests/unit-tests/security/dummy-keychain.hpp b/tests/unit-tests/security/dummy-keychain.hpp
index 5c95edf..7d5682e 100644
--- a/tests/unit-tests/security/dummy-keychain.hpp
+++ b/tests/unit-tests/security/dummy-keychain.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2015 Regents of the University of California.
+ * Copyright (c) 2013-2016 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -46,9 +46,9 @@
   doesPublicKeyExist(const Name& keyName);
 
   virtual void
-  addKey(const Name& keyName, const PublicKey& publicKey);
+  addKey(const Name& keyName, const v1::PublicKey& publicKey);
 
-  virtual shared_ptr<PublicKey>
+  virtual shared_ptr<v1::PublicKey>
   getPublicKey(const Name& keyName);
 
   virtual KeyType
@@ -58,9 +58,9 @@
   doesCertificateExist(const Name& certificateName);
 
   virtual void
-  addCertificate(const IdentityCertificate& certificate);
+  addCertificate(const v1::IdentityCertificate& certificate);
 
-  virtual shared_ptr<IdentityCertificate>
+  virtual shared_ptr<v1::IdentityCertificate>
   getCertificate(const Name& certificateName);
 
   virtual Name
@@ -155,7 +155,7 @@
   virtual void
   deleteKeyPairInTpm(const Name& keyName);
 
-  virtual shared_ptr<PublicKey>
+  virtual shared_ptr<v1::PublicKey>
   getPublicKeyFromTpm(const Name& keyName);
 
   virtual Block
diff --git a/tests/unit-tests/security/key-chain.t.cpp b/tests/unit-tests/security/key-chain.t.cpp
index 5d8195a..eff1ab3 100644
--- a/tests/unit-tests/security/key-chain.t.cpp
+++ b/tests/unit-tests/security/key-chain.t.cpp
@@ -181,11 +181,11 @@
   identity.appendVersion();
   addIdentity(identity);
 
-  std::vector<CertificateSubjectDescription> subjectDescription;
+  std::vector<v1::CertificateSubjectDescription> subjectDescription;
   Name lowerIdentity = identity;
   lowerIdentity.append("Lower").appendVersion();
   Name lowerKeyName = m_keyChain.generateRsaKeyPair(lowerIdentity, true);
-  shared_ptr<IdentityCertificate> idCert =
+  shared_ptr<v1::IdentityCertificate> idCert =
     m_keyChain.prepareUnsignedIdentityCertificate(lowerKeyName, identity,
                                                   time::system_clock::now(),
                                                   time::system_clock::now() + time::days(365),
@@ -195,7 +195,7 @@
                     Name().append(identity).append("KEY").append("Lower"));
   BOOST_CHECK(idCert->getFreshnessPeriod() >= time::milliseconds::zero());
 
-  shared_ptr<IdentityCertificate> idCert11 =
+  shared_ptr<v1::IdentityCertificate> idCert11 =
     m_keyChain.prepareUnsignedIdentityCertificate(lowerKeyName, identity,
                                                   time::system_clock::now(),
                                                   time::system_clock::now() + time::days(365),
@@ -208,7 +208,7 @@
   Name anotherIdentity("/TestKeyChain/PrepareIdentityCertificate/Another/");
   anotherIdentity.appendVersion();
   Name anotherKeyName = m_keyChain.generateRsaKeyPair(anotherIdentity, true);
-  shared_ptr<IdentityCertificate> idCert2 =
+  shared_ptr<v1::IdentityCertificate> idCert2 =
     m_keyChain.prepareUnsignedIdentityCertificate(anotherKeyName, identity,
                                                   time::system_clock::now(),
                                                   time::system_clock::now() + time::days(365),
@@ -218,7 +218,7 @@
 
 
   Name wrongKeyName1;
-  shared_ptr<IdentityCertificate> idCert3 =
+  shared_ptr<v1::IdentityCertificate> idCert3 =
     m_keyChain.prepareUnsignedIdentityCertificate(wrongKeyName1, identity,
                                                   time::system_clock::now(),
                                                   time::system_clock::now() + time::days(365),
@@ -227,7 +227,7 @@
 
 
   Name wrongKeyName2("/TestKeyChain/PrepareIdentityCertificate");
-  shared_ptr<IdentityCertificate> idCert4 =
+  shared_ptr<v1::IdentityCertificate> idCert4 =
     m_keyChain.prepareUnsignedIdentityCertificate(wrongKeyName2, identity,
                                                   time::system_clock::now(),
                                                   time::system_clock::now() + time::days(365),
@@ -236,7 +236,7 @@
 
 
   Name wrongKeyName3("/TestKeyChain/PrepareIdentityCertificate/ksk-1234");
-  shared_ptr<IdentityCertificate> idCert5 =
+  shared_ptr<v1::IdentityCertificate> idCert5 =
     m_keyChain.prepareUnsignedIdentityCertificate(wrongKeyName3, identity,
                                                   time::system_clock::now(),
                                                   time::system_clock::now() + time::days(365),
@@ -252,11 +252,11 @@
   Name certName1;
   BOOST_REQUIRE_NO_THROW(certName1 = m_keyChain.createIdentity(identity));
 
-  Name keyName1 = IdentityCertificate::certificateNameToPublicKeyName(certName1);
+  Name keyName1 = v1::IdentityCertificate::certificateNameToPublicKeyName(certName1);
   Name keyName2;
   BOOST_REQUIRE_NO_THROW(keyName2 = m_keyChain.generateRsaKeyPairAsDefault(identity));
 
-  shared_ptr<IdentityCertificate> cert2;
+  shared_ptr<v1::IdentityCertificate> cert2;
   BOOST_REQUIRE_NO_THROW(cert2 = m_keyChain.selfSign(keyName2));
   Name certName2 = cert2->getName();
   BOOST_REQUIRE_NO_THROW(m_keyChain.addCertificateAsKeyDefault(*cert2));
@@ -264,15 +264,15 @@
   Name keyName3;
   BOOST_REQUIRE_NO_THROW(keyName3 = m_keyChain.generateRsaKeyPairAsDefault(identity));
 
-  shared_ptr<IdentityCertificate> cert3;
+  shared_ptr<v1::IdentityCertificate> cert3;
   BOOST_REQUIRE_NO_THROW(cert3 = m_keyChain.selfSign(keyName3));
   Name certName3 = cert3->getName();
   BOOST_REQUIRE_NO_THROW(m_keyChain.addCertificateAsKeyDefault(*cert3));
-  shared_ptr<IdentityCertificate> cert4;
+  shared_ptr<v1::IdentityCertificate> cert4;
   BOOST_REQUIRE_NO_THROW(cert4 = m_keyChain.selfSign(keyName3));
   Name certName4 = cert4->getName();
   BOOST_REQUIRE_NO_THROW(m_keyChain.addCertificateAsKeyDefault(*cert4));
-  shared_ptr<IdentityCertificate> cert5;
+  shared_ptr<v1::IdentityCertificate> cert5;
   BOOST_REQUIRE_NO_THROW(cert5 = m_keyChain.selfSign(keyName3));
   Name certName5 = cert5->getName();
   BOOST_REQUIRE_NO_THROW(m_keyChain.addCertificateAsKeyDefault(*cert5));
@@ -328,13 +328,13 @@
 {
   Name id("/id");
   Name certName = m_keyChain.createIdentity(id);
-  shared_ptr<IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
+  shared_ptr<v1::IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
   Name keyName = idCert->getPublicKeyName();
   m_keyChain.setDefaultIdentity(id);
 
   Name id2("/id2");
   Name cert2Name = m_keyChain.createIdentity(id2);
-  shared_ptr<IdentityCertificate> id2Cert = m_keyChain.getCertificate(cert2Name);
+  shared_ptr<v1::IdentityCertificate> id2Cert = m_keyChain.getCertificate(cert2Name);
 
   // SigningInfo is set to default
   Data data1("/data1");
diff --git a/tests/unit-tests/security/key.t.cpp b/tests/unit-tests/security/key.t.cpp
index 27db02c..681c43c 100644
--- a/tests/unit-tests/security/key.t.cpp
+++ b/tests/unit-tests/security/key.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2015 Regents of the University of California.
+ * Copyright (c) 2013-2016 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -74,7 +74,7 @@
   BOOST_REQUIRE_NO_THROW(key11.setDefaultCertificate(id1Key1Cert1));
   BOOST_REQUIRE_NO_THROW(key11.getDefaultCertificate());
 
-  const IdentityCertificate& defaultCert = key11.getDefaultCertificate();
+  const v1::IdentityCertificate& defaultCert = key11.getDefaultCertificate();
   BOOST_CHECK_EQUAL_COLLECTIONS(defaultCert.wireEncode().wire(),
                                 defaultCert.wireEncode().wire() + defaultCert.wireEncode().size(),
                                 id1Key1Cert1.wireEncode().wire(),
diff --git a/tests/unit-tests/security/pib-data-fixture.hpp b/tests/unit-tests/security/pib-data-fixture.hpp
index 2f43113..04db21d 100644
--- a/tests/unit-tests/security/pib-data-fixture.hpp
+++ b/tests/unit-tests/security/pib-data-fixture.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2015 Regents of the University of California.
+ * Copyright (c) 2013-2016 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -22,7 +22,7 @@
 #ifndef NDN_TESTS_PIB_DATA_FIXTURE_HPP
 #define NDN_TESTS_PIB_DATA_FIXTURE_HPP
 
-#include "security/identity-certificate.hpp"
+#include "security/v1/identity-certificate.hpp"
 
 #include "boost-test.hpp"
 
@@ -43,19 +43,19 @@
   Name id2Key1Name;
   Name id2Key2Name;
 
-  PublicKey id1Key1;
-  PublicKey id1Key2;
-  PublicKey id2Key1;
-  PublicKey id2Key2;
+  v1::PublicKey id1Key1;
+  v1::PublicKey id1Key2;
+  v1::PublicKey id2Key1;
+  v1::PublicKey id2Key2;
 
-  IdentityCertificate id1Key1Cert1;
-  IdentityCertificate id1Key1Cert2;
-  IdentityCertificate id1Key2Cert1;
-  IdentityCertificate id1Key2Cert2;
-  IdentityCertificate id2Key1Cert1;
-  IdentityCertificate id2Key1Cert2;
-  IdentityCertificate id2Key2Cert1;
-  IdentityCertificate id2Key2Cert2;
+  v1::IdentityCertificate id1Key1Cert1;
+  v1::IdentityCertificate id1Key1Cert2;
+  v1::IdentityCertificate id1Key2Cert1;
+  v1::IdentityCertificate id1Key2Cert2;
+  v1::IdentityCertificate id2Key1Cert1;
+  v1::IdentityCertificate id2Key1Cert2;
+  v1::IdentityCertificate id2Key2Cert1;
+  v1::IdentityCertificate id2Key2Cert2;
 };
 
 } // namespace security
diff --git a/tests/unit-tests/security/pib-impl.t.cpp b/tests/unit-tests/security/pib-impl.t.cpp
index 4c01033..40de0f2 100644
--- a/tests/unit-tests/security/pib-impl.t.cpp
+++ b/tests/unit-tests/security/pib-impl.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2015 Regents of the University of California.
+ * Copyright (c) 2013-2016 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -119,7 +119,7 @@
   pibImpl.addKey(id1, id1Key1Name.get(-1), id1Key1);
   BOOST_CHECK_EQUAL(pibImpl.hasKey(id1, id1Key1Name.get(-1)), true);
   BOOST_CHECK_EQUAL(pibImpl.hasIdentity(id1), true);
-  const PublicKey& keyBits = pibImpl.getKeyBits(id1, id1Key1Name.get(-1));
+  const v1::PublicKey& keyBits = pibImpl.getKeyBits(id1, id1Key1Name.get(-1));
   BOOST_CHECK_EQUAL_COLLECTIONS(keyBits.get().buf(), keyBits.get().buf() + keyBits.get().size(),
                                 id1Key1.get().buf(), id1Key1.get().buf() + id1Key1.get().size());
   BOOST_CHECK_NO_THROW(pibImpl.getDefaultKeyOfIdentity(id1));
@@ -179,7 +179,7 @@
   BOOST_CHECK_EQUAL(pibImpl.hasCertificate(id1Key1Cert1.getName()), true);
   BOOST_CHECK_EQUAL(pibImpl.hasIdentity(id1), true);
   BOOST_CHECK_EQUAL(pibImpl.hasKey(id1, id1Key1Name.get(-1)), true);
-  const IdentityCertificate& cert = pibImpl.getCertificate(id1Key1Cert1.getName());
+  const v1::IdentityCertificate& cert = pibImpl.getCertificate(id1Key1Cert1.getName());
   BOOST_CHECK_EQUAL_COLLECTIONS(cert.wireEncode().wire(),
                                 cert.wireEncode().wire() + cert.wireEncode().size(),
                                 id1Key1Cert1.wireEncode().wire(),
diff --git a/tests/unit-tests/security/pib-sqlite3.t.cpp b/tests/unit-tests/security/pib-sqlite3.t.cpp
index 52d5ff1..3ae16cb 100644
--- a/tests/unit-tests/security/pib-sqlite3.t.cpp
+++ b/tests/unit-tests/security/pib-sqlite3.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2015 Regents of the University of California.
+ * Copyright (c) 2013-2016 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -84,8 +84,8 @@
 
 BOOST_AUTO_TEST_CASE(TpmTest)
 {
-  ndn::Block selfSignedCertBlock(SELF_SIGNED_ECDSA_CERT, sizeof(SELF_SIGNED_ECDSA_CERT));
-  ndn::IdentityCertificate cert;
+  Block selfSignedCertBlock(SELF_SIGNED_ECDSA_CERT, sizeof(SELF_SIGNED_ECDSA_CERT));
+  v1::IdentityCertificate cert;
   cert.wireDecode(selfSignedCertBlock);
   Name identity = cert.getPublicKeyName().getPrefix(-1);
   name::Component keyId = cert.getPublicKeyName().get(-1);
diff --git a/tests/unit-tests/security/sec-public-info-sqlite3.t.cpp b/tests/unit-tests/security/sec-public-info-sqlite3.t.cpp
index b57747c..aa2a748 100644
--- a/tests/unit-tests/security/sec-public-info-sqlite3.t.cpp
+++ b/tests/unit-tests/security/sec-public-info-sqlite3.t.cpp
@@ -21,7 +21,7 @@
 
 #include "security/sec-public-info-sqlite3.hpp"
 #include "security/key-chain.hpp"
-#include "security/cryptopp.hpp"
+#include "security/v1/cryptopp.hpp"
 #include "encoding/buffer-stream.hpp"
 #include "util/time.hpp"
 
@@ -30,6 +30,7 @@
 #include "boost-test.hpp"
 
 namespace ndn {
+namespace security {
 namespace tests {
 
 class PibTmpPathFixture
@@ -104,9 +105,8 @@
   StringSource ss(reinterpret_cast<const uint8_t*>(RSA_DER.c_str()), RSA_DER.size(),
                   true, new Base64Decoder(new FileSink(os)));
 
-  shared_ptr<PublicKey> rsaKey;
-  BOOST_REQUIRE_NO_THROW(rsaKey = shared_ptr<PublicKey>(new PublicKey(os.buf()->buf(),
-                                                                      os.buf()->size())));
+  shared_ptr<v1::PublicKey> rsaKey;
+  BOOST_REQUIRE_NO_THROW(rsaKey = make_shared<v1::PublicKey>(os.buf()->buf(), os.buf()->size()));
   Name rsaKeyName("/TestSecPublicInfoSqlite3/KeyType/RSA/ksk-123");
   SecPublicInfoSqlite3 pib;
   pib.addKey(rsaKeyName, *rsaKey);
@@ -124,9 +124,8 @@
   StringSource ss(reinterpret_cast<const uint8_t*>(ECDSA_DER.c_str()), ECDSA_DER.size(),
                   true, new Base64Decoder(new FileSink(os)));
 
-  shared_ptr<PublicKey> ecdsaKey;
-  BOOST_REQUIRE_NO_THROW(ecdsaKey = shared_ptr<PublicKey>(new PublicKey(os.buf()->buf(),
-                                                                        os.buf()->size())));
+  shared_ptr<v1::PublicKey> ecdsaKey;
+  BOOST_REQUIRE_NO_THROW(ecdsaKey = make_shared<v1::PublicKey>(os.buf()->buf(), os.buf()->size()));
   Name ecdsaKeyName("/TestSecPublicInfoSqlite3/KeyType/ECDSA/ksk-123");
   SecPublicInfoSqlite3 pib;
   pib.addKey(ecdsaKeyName, *ecdsaKey);
@@ -147,4 +146,5 @@
 BOOST_AUTO_TEST_SUITE_END()
 
 } // namespace tests
+} // namespace security
 } // namespace ndn
diff --git a/tests/unit-tests/security/sec-tpm-file.t.cpp b/tests/unit-tests/security/sec-tpm-file.t.cpp
index ca73c70..56f8ba7 100644
--- a/tests/unit-tests/security/sec-tpm-file.t.cpp
+++ b/tests/unit-tests/security/sec-tpm-file.t.cpp
@@ -21,7 +21,7 @@
 
 #include "security/sec-tpm-file.hpp"
 #include "security/key-chain.hpp"
-#include "security/cryptopp.hpp"
+#include "security/v1/cryptopp.hpp"
 
 #include "util/time.hpp"
 
@@ -30,6 +30,7 @@
 #include "boost-test.hpp"
 
 namespace ndn {
+namespace security {
 namespace tests {
 
 BOOST_AUTO_TEST_SUITE(SecuritySecTpmFile)
@@ -67,7 +68,7 @@
   Block sigBlock;
   BOOST_CHECK_NO_THROW(sigBlock = tpm.signInTpm(content, sizeof(content),
                                                 keyName, DigestAlgorithm::SHA256));
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<v1::PublicKey> publicKey;
   BOOST_CHECK_NO_THROW(publicKey = tpm.getPublicKeyFromTpm(keyName));
 
   try
@@ -169,7 +170,7 @@
   BOOST_REQUIRE_EQUAL(tpm.doesKeyExistInTpm(keyName, KeyClass::PRIVATE), true);
   BOOST_REQUIRE_EQUAL(tpm.doesKeyExistInTpm(keyName, KeyClass::PUBLIC), true);
 
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<v1::PublicKey> publicKey;
   BOOST_CHECK_NO_THROW(publicKey = tpm.getPublicKeyFromTpm(keyName));
 
   const uint8_t content[] = {0x01, 0x02, 0x03, 0x04};
@@ -258,7 +259,7 @@
   BOOST_CHECK_NO_THROW(sigBlock = tpm.signInTpm(content, sizeof(content),
                                                 keyName, DigestAlgorithm::SHA256));
 
-  shared_ptr<PublicKey> pubkeyPtr;
+  shared_ptr<v1::PublicKey> pubkeyPtr;
   BOOST_CHECK_NO_THROW(pubkeyPtr = tpm.getPublicKeyFromTpm(keyName));
 
   try
@@ -320,7 +321,7 @@
   BOOST_REQUIRE_EQUAL(tpm.doesKeyExistInTpm(keyName, KeyClass::PRIVATE), true);
   BOOST_REQUIRE_EQUAL(tpm.doesKeyExistInTpm(keyName, KeyClass::PUBLIC), true);
 
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<v1::PublicKey> publicKey;
   BOOST_CHECK_NO_THROW(publicKey = tpm.getPublicKeyFromTpm(keyName));
 
   const uint8_t content[] = {0x01, 0x02, 0x03, 0x04};
@@ -406,4 +407,5 @@
 BOOST_AUTO_TEST_SUITE_END()
 
 } // namespace tests
+} // namespace security
 } // namespace ndn
diff --git a/tests/unit-tests/security/sec-tpm-osx.t.cpp b/tests/unit-tests/security/sec-tpm-osx.t.cpp
index ee9f96b..6bb283a 100644
--- a/tests/unit-tests/security/sec-tpm-osx.t.cpp
+++ b/tests/unit-tests/security/sec-tpm-osx.t.cpp
@@ -20,7 +20,7 @@
  */
 
 #include "security/sec-tpm-osx.hpp"
-#include "security/cryptopp.hpp"
+#include "security/v1/cryptopp.hpp"
 
 #include "util/time.hpp"
 
@@ -30,6 +30,7 @@
 #include "boost-test.hpp"
 
 namespace ndn {
+namespace security {
 namespace tests {
 
 class OsxKeyChainTestFixture
@@ -100,7 +101,7 @@
   BOOST_CHECK_NO_THROW(sigBlock = tpm.signInTpm(content, sizeof(content),
                                                 keyName, DigestAlgorithm::SHA256));
 
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<v1::PublicKey> publicKey;
   BOOST_CHECK_NO_THROW(publicKey = tpm.getPublicKeyFromTpm(keyName));
   try
     {
@@ -168,7 +169,7 @@
 
   ConstBufferPtr exported;
   BOOST_CHECK_NO_THROW(exported = tpm.exportPrivateKeyPkcs5FromTpm(keyName, "1234"));
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<v1::PublicKey> publicKey;
   BOOST_REQUIRE_NO_THROW(publicKey = tpm.getPublicKeyFromTpm(keyName));
 
   tpm.deleteKeyPairInTpm(keyName);
@@ -253,7 +254,7 @@
   BOOST_CHECK_NO_THROW(sigBlock = tpm.signInTpm(content, sizeof(content),
                                                 keyName, DigestAlgorithm::SHA256));
 
-  shared_ptr<PublicKey> pubkeyPtr;
+  shared_ptr<v1::PublicKey> pubkeyPtr;
   BOOST_CHECK_NO_THROW(pubkeyPtr = tpm.getPublicKeyFromTpm(keyName));
 
   try
@@ -303,7 +304,7 @@
   ConstBufferPtr exported;
   BOOST_CHECK_NO_THROW(exported = tpm.exportPrivateKeyPkcs5FromTpm(keyName, "1234"));
 
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<v1::PublicKey> publicKey;
   BOOST_REQUIRE_NO_THROW(publicKey = tpm.getPublicKeyFromTpm(keyName));
 
   tpm.deleteKeyPairInTpm(keyName);
@@ -362,4 +363,5 @@
 BOOST_AUTO_TEST_SUITE_END()
 
 } // namespace tests
+} // namespace security
 } // namespace ndn
diff --git a/tests/unit-tests/security/signature-sha256-with-ecdsa.t.cpp b/tests/unit-tests/security/signature-sha256-with-ecdsa.t.cpp
index 648af1d..e6bd97f 100644
--- a/tests/unit-tests/security/signature-sha256-with-ecdsa.t.cpp
+++ b/tests/unit-tests/security/signature-sha256-with-ecdsa.t.cpp
@@ -107,7 +107,7 @@
 {
   Name identityName("/SecurityTestSignatureSha256WithEcdsa/DataSignature");
   BOOST_REQUIRE(addIdentity(identityName, EcdsaKeyParams()));
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<security::v1::PublicKey> publicKey;
   BOOST_REQUIRE_NO_THROW(publicKey = m_keyChain.getPublicKeyFromTpm(
     m_keyChain.getDefaultKeyNameForIdentity(identityName)));
 
@@ -129,7 +129,7 @@
 {
   Name identityName("/SecurityTestSignatureSha256WithEcdsa/InterestSignature");
   BOOST_REQUIRE(addIdentity(identityName, EcdsaKeyParams()));
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<security::v1::PublicKey> publicKey;
   BOOST_REQUIRE_NO_THROW(publicKey = m_keyChain.getPublicKeyFromTpm(
     m_keyChain.getDefaultKeyNameForIdentity(identityName)));
 
diff --git a/tests/unit-tests/security/signature-sha256-with-rsa.t.cpp b/tests/unit-tests/security/signature-sha256-with-rsa.t.cpp
index ea3a40f..ec9e936 100644
--- a/tests/unit-tests/security/signature-sha256-with-rsa.t.cpp
+++ b/tests/unit-tests/security/signature-sha256-with-rsa.t.cpp
@@ -112,7 +112,7 @@
 {
   Name identityName("/SecurityTestSignatureSha256WithRsa/DataSignature");
   BOOST_REQUIRE(addIdentity(identityName, RsaKeyParams()));
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<security::v1::PublicKey> publicKey;
   BOOST_REQUIRE_NO_THROW(publicKey = m_keyChain.getPublicKeyFromTpm(
     m_keyChain.getDefaultKeyNameForIdentity(identityName)));
 
@@ -133,7 +133,7 @@
 {
   Name identityName("/SecurityTestSignatureSha256WithRsa/InterestSignature");
   BOOST_REQUIRE(addIdentity(identityName, RsaKeyParams()));
-  shared_ptr<PublicKey> publicKey;
+  shared_ptr<security::v1::PublicKey> publicKey;
   BOOST_REQUIRE_NO_THROW(publicKey = m_keyChain.getPublicKeyFromTpm(
     m_keyChain.getDefaultKeyNameForIdentity(identityName)));
 
diff --git a/tests/unit-tests/security/transform/signer-filter.t.cpp b/tests/unit-tests/security/transform/signer-filter.t.cpp
index 204bf81..dc173e3 100644
--- a/tests/unit-tests/security/transform/signer-filter.t.cpp
+++ b/tests/unit-tests/security/transform/signer-filter.t.cpp
@@ -24,7 +24,7 @@
 #include "encoding/buffer-stream.hpp"
 
 // TODO: remove CryptoPP dependency
-#include "security/cryptopp.hpp"
+#include "security/v1/cryptopp.hpp"
 
 #include "boost-test.hpp"
 
diff --git a/tests/unit-tests/security/transform/verifier-filter.t.cpp b/tests/unit-tests/security/transform/verifier-filter.t.cpp
index c450f3f..cd496df 100644
--- a/tests/unit-tests/security/transform/verifier-filter.t.cpp
+++ b/tests/unit-tests/security/transform/verifier-filter.t.cpp
@@ -24,7 +24,7 @@
 #include "encoding/buffer-stream.hpp"
 
 // TODO: remove CryptoPP dependency
-#include "security/cryptopp.hpp"
+#include "security/v1/cryptopp.hpp"
 
 #include "boost-test.hpp"
 
diff --git a/tests/unit-tests/security/v1/certificate.t.cpp b/tests/unit-tests/security/v1/certificate.t.cpp
new file mode 100644
index 0000000..043a1fb
--- /dev/null
+++ b/tests/unit-tests/security/v1/certificate.t.cpp
@@ -0,0 +1,389 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016 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.
+ */
+
+#include "security/v1/certificate.hpp"
+#include "security/v1/public-key.hpp"
+
+#include "security/key-chain.hpp"
+
+#include "security/v1/cryptopp.hpp"
+
+#include "boost-test.hpp"
+
+namespace ndn {
+namespace security {
+namespace v1 {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(Security)
+BOOST_AUTO_TEST_SUITE(V1)
+BOOST_AUTO_TEST_SUITE(TestCertificate)
+
+using namespace CryptoPP;
+
+const uint8_t PUBLIC_KEY[] = {
+  0x30, 0x81, 0x9d, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+  0x01, 0x05, 0x00, 0x03, 0x81, 0x8b, 0x00, 0x30, 0x81, 0x87, 0x02, 0x81, 0x81, 0x00, 0x9e,
+  0x06, 0x3e, 0x47, 0x85, 0xb2, 0x34, 0x37, 0xaa, 0x85, 0x47, 0xac, 0x03, 0x24, 0x83, 0xb5,
+  0x9c, 0xa8, 0x05, 0x3a, 0x24, 0x1e, 0xeb, 0x89, 0x01, 0xbb, 0xe9, 0x9b, 0xb2, 0xc3, 0x22,
+  0xac, 0x68, 0xe3, 0xf0, 0x6c, 0x02, 0xce, 0x68, 0xa6, 0xc4, 0xd0, 0xa7, 0x06, 0x90, 0x9c,
+  0xaa, 0x1b, 0x08, 0x1d, 0x8b, 0x43, 0x9a, 0x33, 0x67, 0x44, 0x6d, 0x21, 0xa3, 0x1b, 0x88,
+  0x9a, 0x97, 0x5e, 0x59, 0xc4, 0x15, 0x0b, 0xd9, 0x2c, 0xbd, 0x51, 0x07, 0x61, 0x82, 0xad,
+  0xc1, 0xb8, 0xd7, 0xbf, 0x9b, 0xcf, 0x7d, 0x24, 0xc2, 0x63, 0xf3, 0x97, 0x17, 0xeb, 0xfe,
+  0x62, 0x25, 0xba, 0x5b, 0x4d, 0x8a, 0xc2, 0x7a, 0xbd, 0x43, 0x8a, 0x8f, 0xb8, 0xf2, 0xf1,
+  0xc5, 0x6a, 0x30, 0xd3, 0x50, 0x8c, 0xc8, 0x9a, 0xdf, 0xef, 0xed, 0x35, 0xe7, 0x7a, 0x62,
+  0xea, 0x76, 0x7c, 0xbb, 0x08, 0x26, 0xc7, 0x02, 0x01, 0x11
+};
+
+const uint8_t CERT[] = {
+  0x30, 0x81, 0xff, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x32, 0x32, 0x36,
+  0x32, 0x33, 0x32, 0x32, 0x35, 0x34, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x32,
+  0x32, 0x36, 0x32, 0x33, 0x32, 0x32, 0x35, 0x34, 0x5a, 0x30, 0x12, 0x30, 0x10, 0x06, 0x03,
+  0x55, 0x04, 0x29, 0x13, 0x09, 0x54, 0x45, 0x53, 0x54, 0x20, 0x4e, 0x41, 0x4d, 0x45, 0x30,
+  0x81, 0x9d, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
+  0x05, 0x00, 0x03, 0x81, 0x8b, 0x00, 0x30, 0x81, 0x87, 0x02, 0x81, 0x81, 0x00, 0x9e, 0x06,
+  0x3e, 0x47, 0x85, 0xb2, 0x34, 0x37, 0xaa, 0x85, 0x47, 0xac, 0x03, 0x24, 0x83, 0xb5, 0x9c,
+  0xa8, 0x05, 0x3a, 0x24, 0x1e, 0xeb, 0x89, 0x01, 0xbb, 0xe9, 0x9b, 0xb2, 0xc3, 0x22, 0xac,
+  0x68, 0xe3, 0xf0, 0x6c, 0x02, 0xce, 0x68, 0xa6, 0xc4, 0xd0, 0xa7, 0x06, 0x90, 0x9c, 0xaa,
+  0x1b, 0x08, 0x1d, 0x8b, 0x43, 0x9a, 0x33, 0x67, 0x44, 0x6d, 0x21, 0xa3, 0x1b, 0x88, 0x9a,
+  0x97, 0x5e, 0x59, 0xc4, 0x15, 0x0b, 0xd9, 0x2c, 0xbd, 0x51, 0x07, 0x61, 0x82, 0xad, 0xc1,
+  0xb8, 0xd7, 0xbf, 0x9b, 0xcf, 0x7d, 0x24, 0xc2, 0x63, 0xf3, 0x97, 0x17, 0xeb, 0xfe, 0x62,
+  0x25, 0xba, 0x5b, 0x4d, 0x8a, 0xc2, 0x7a, 0xbd, 0x43, 0x8a, 0x8f, 0xb8, 0xf2, 0xf1, 0xc5,
+  0x6a, 0x30, 0xd3, 0x50, 0x8c, 0xc8, 0x9a, 0xdf, 0xef, 0xed, 0x35, 0xe7, 0x7a, 0x62, 0xea,
+  0x76, 0x7c, 0xbb, 0x08, 0x26, 0xc7, 0x02, 0x01, 0x11, 0x30, 0x25, 0x30, 0x23, 0x06, 0x06,
+  0x2b, 0x06, 0x01, 0x05, 0x20, 0x01, 0x01, 0x01, 0xff, 0x04, 0x16, 0x30, 0x14, 0x04, 0x0c,
+  0x2f, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x2f, 0x6b, 0x69, 0x74, 0x74, 0x79, 0x02, 0x01, 0x00,
+  0x02, 0x01, 0x0a
+};
+
+const std::string CERT_INFO =
+  "Certificate name:\n"
+  "  /\n"
+  "Validity:\n"
+  "  NotBefore: 20131226T232254\n"
+  "  NotAfter: 20131226T232254\n"
+  "Subject Description:\n"
+  "  2.5.4.41: TEST NAME\n"
+  "Public key bits: (RSA)\n"
+  "  MIGdMA0GCSqGSIb3DQEBAQUAA4GLADCBhwKBgQCeBj5HhbI0N6qFR6wDJIO1nKgF\n"
+  "  OiQe64kBu+mbssMirGjj8GwCzmimxNCnBpCcqhsIHYtDmjNnRG0hoxuImpdeWcQV\n"
+  "  C9ksvVEHYYKtwbjXv5vPfSTCY/OXF+v+YiW6W02Kwnq9Q4qPuPLxxWow01CMyJrf\n"
+  "  7+0153pi6nZ8uwgmxwIB\n"
+  "Signature Information:\n"
+  "  Signature Type: Unknown Signature Type\n";
+
+BOOST_AUTO_TEST_CASE(Encode)
+{
+  Certificate certificate;
+
+  // validity
+  // not before 12/26/2013 @ 11:22pm
+  certificate.setNotBefore(time::fromUnixTimestamp(time::milliseconds(1388100174000LL)));
+  // not after 12/26/2013 @ 11:22pm
+  certificate.setNotAfter(time::fromUnixTimestamp(time::milliseconds(1388100174000LL)));
+
+  // subject
+  certificate.addSubjectDescription(CertificateSubjectDescription(oid::ATTRIBUTE_NAME,
+                                                                  "TEST NAME"));
+
+  // publicKeyInfo
+  PublicKey key(PUBLIC_KEY, sizeof(PUBLIC_KEY));
+  certificate.setPublicKeyInfo(key);
+
+  // extensions
+  BOOST_REQUIRE_NO_THROW({
+    std::string extenstionValue;
+    StringSink sink(extenstionValue);
+    DERSequenceEncoder seq(sink);
+    {
+      std::string name("/hello/kitty");
+      DEREncodeOctetString(seq, reinterpret_cast<const uint8_t*>(name.c_str()), name.size());
+      // trustClass
+      DEREncodeUnsigned<uint32_t>(seq, 0);
+      // trustLevel
+      DEREncodeUnsigned<uint32_t>(seq, 10);
+    }
+    seq.MessageEnd();
+
+    //create a randome extension
+    certificate.addExtension(CertificateExtension(Oid("1.3.6.1.5.32.1"), true,
+      reinterpret_cast<const uint8_t*>(extenstionValue.c_str()),
+      extenstionValue.size()));
+  });
+  // RSA::PublicKey p;
+  // StringSource source(T, sizeof(T), true);
+  // p.Load(source);
+
+  BOOST_REQUIRE_NO_THROW(certificate.encode());
+
+  // ofstream of("cert.out");
+  // of.write((const char*certificate.getContent().value(), certificate.getContent().value_size());
+
+  // const Block &wire = i.wireEncode();
+  BOOST_REQUIRE_EQUAL_COLLECTIONS(CERT, CERT+sizeof(CERT),
+                                  certificate.getContent().value_begin(),
+                                  certificate.getContent().value_end());
+
+  std::ostringstream os;
+  os << certificate;
+  std::string info(os.str());
+
+  BOOST_CHECK_EQUAL(CERT_INFO, info);
+}
+
+const unsigned char REAL_CERT[] = {
+  0x30, 0x82, 0x01, 0x63, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x31, 0x30,
+  0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34, 0x31,
+  0x31, 0x30, 0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x30, 0x19, 0x30, 0x17, 0x06,
+  0x03, 0x55, 0x04, 0x29, 0x13, 0x10, 0x4e, 0x44, 0x4e, 0x20, 0x54, 0x65, 0x73, 0x74, 0x62,
+  0x65, 0x64, 0x20, 0x52, 0x6f, 0x6f, 0x74, 0x30, 0x82, 0x01, 0x20, 0x30, 0x0d, 0x06, 0x09,
+  0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0d,
+  0x00, 0x30, 0x82, 0x01, 0x08, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd3, 0xac, 0x7e, 0x7a, 0x5c,
+  0x33, 0x58, 0x21, 0xda, 0xe0, 0x8d, 0xdb, 0xca, 0xb6, 0x02, 0x30, 0x02, 0x15, 0xc5, 0x0a,
+  0x51, 0x54, 0xbb, 0x8e, 0x5e, 0x9d, 0x21, 0xf8, 0x14, 0xbe, 0xe4, 0x63, 0x60, 0x31, 0x53,
+  0xe2, 0xef, 0xee, 0x34, 0xa3, 0x8c, 0xd2, 0x24, 0x6f, 0xa4, 0x89, 0x4f, 0x02, 0x20, 0x7d,
+  0x66, 0xb6, 0x3f, 0x11, 0x40, 0x0c, 0xc1, 0x5f, 0xd8, 0x45, 0x23, 0x95, 0x40, 0xc8, 0xe0,
+  0xbc, 0x9d, 0x2f, 0x03, 0xf1, 0x83, 0x9f, 0x07, 0x0b, 0x76, 0xc9, 0x10, 0xd9, 0x3e, 0x0b,
+  0x75, 0x13, 0x93, 0xe9, 0xc9, 0x85, 0x01, 0x88, 0x36, 0x2e, 0xab, 0xfc, 0xe6, 0x24, 0x32,
+  0xfc, 0xc6, 0x3c, 0x40, 0x97, 0x1a, 0xcc, 0xcd, 0x53, 0xaa, 0x0f, 0xfb, 0xa3, 0xfe, 0xf9,
+  0x24, 0x70, 0x13, 0x3f, 0x4f, 0x5b, 0x7d, 0x43, 0xaa, 0x75, 0x0a, 0x94, 0x72, 0xab, 0xe1,
+  0x8c, 0x45, 0xb5, 0x78, 0x10, 0x01, 0xef, 0x1f, 0xb3, 0x05, 0x6f, 0xa6, 0xc3, 0xac, 0x7f,
+  0x6d, 0xf0, 0x31, 0xc4, 0x83, 0xb3, 0x4f, 0x50, 0x26, 0x92, 0x40, 0x1a, 0xdd, 0xec, 0xfb,
+  0xcb, 0xef, 0x63, 0xfe, 0x41, 0xd8, 0x8d, 0x1f, 0xdc, 0xec, 0xfc, 0x48, 0x95, 0xcc, 0x09,
+  0x1e, 0x30, 0x6e, 0x22, 0x9e, 0x24, 0x97, 0x2e, 0xe6, 0x0c, 0xdf, 0x3d, 0x20, 0x32, 0xaa,
+  0x9c, 0xc9, 0x45, 0x14, 0xaf, 0xaa, 0xf5, 0x17, 0xd2, 0x01, 0x98, 0x33, 0xbe, 0x2a, 0x9f,
+  0x7b, 0x9d, 0x98, 0x7c, 0x54, 0x22, 0xfe, 0x72, 0x72, 0x04, 0xc3, 0x2c, 0xc0, 0x14, 0x0b,
+  0xa9, 0x40, 0x7e, 0x46, 0xa1, 0x75, 0x16, 0x1a, 0x27, 0x9e, 0xf2, 0x82, 0x96, 0xc0, 0x7d,
+  0xaf, 0x18, 0x75, 0xfb, 0xbb, 0xab, 0x16, 0x66, 0xc0, 0xa9, 0xd7, 0x93, 0x4c, 0x48, 0x6d,
+  0xce, 0x0b, 0x88, 0xd4, 0x21, 0x93, 0x84, 0x89, 0x55, 0x05, 0xd5, 0x02, 0x01, 0x11
+};
+
+const std::string REAL_CERT_INFO = "Certificate name:\n"
+  "  /tmp\n"
+  "Validity:\n"
+  "  NotBefore: 20131101T171122\n"
+  "  NotAfter: 20141101T171122\n"
+  "Subject Description:\n"
+  "  2.5.4.41: NDN Testbed Root\n"
+  "Public key bits: (RSA)\n"
+  "  MIIBIDANBgkqhkiG9w0BAQEFAAOCAQ0AMIIBCAKCAQEA06x+elwzWCHa4I3byrYC\n"
+  "  MAIVxQpRVLuOXp0h+BS+5GNgMVPi7+40o4zSJG+kiU8CIH1mtj8RQAzBX9hFI5VA\n"
+  "  yOC8nS8D8YOfBwt2yRDZPgt1E5PpyYUBiDYuq/zmJDL8xjxAlxrMzVOqD/uj/vkk\n"
+  "  cBM/T1t9Q6p1CpRyq+GMRbV4EAHvH7MFb6bDrH9t8DHEg7NPUCaSQBrd7PvL72P+\n"
+  "  QdiNH9zs/EiVzAkeMG4iniSXLuYM3z0gMqqcyUUUr6r1F9IBmDO+Kp97nZh8VCL+\n"
+  "  cnIEwyzAFAupQH5GoXUWGiee8oKWwH2vGHX7u6sWZsCp15NMSG3OC4jUIZOEiVUF\n"
+  "  1QIB\n"
+  "Signature Information:\n"
+  "  Signature Type: Unknown Signature Type\n";
+
+const uint8_t SELF_SIGNED_ECDSA_CERT[] = {
+  0x06, 0xfd, 0x01, 0x5b, 0x07, 0x33, 0x08, 0x05, 0x65, 0x63, 0x64, 0x73, 0x61, 0x08, 0x03,
+  0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31, 0x34, 0x31, 0x36, 0x35, 0x39,
+  0x34, 0x35, 0x35, 0x32, 0x38, 0x32, 0x37, 0x08, 0x07, 0x49, 0x44, 0x2d, 0x43, 0x45, 0x52,
+  0x54, 0x08, 0x09, 0xfd, 0x00, 0x00, 0x01, 0x49, 0xd3, 0x9d, 0x78, 0x00, 0x14, 0x03, 0x18,
+  0x01, 0x02, 0x15, 0xa5, 0x30, 0x81, 0xa2, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34,
+  0x31, 0x31, 0x32, 0x31, 0x31, 0x38, 0x32, 0x39, 0x31, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30,
+  0x33, 0x34, 0x31, 0x31, 0x31, 0x36, 0x31, 0x38, 0x32, 0x39, 0x31, 0x32, 0x5a, 0x30, 0x21,
+  0x30, 0x1f, 0x06, 0x03, 0x55, 0x04, 0x29, 0x13, 0x18, 0x2f, 0x65, 0x63, 0x64, 0x73, 0x61,
+  0x2f, 0x6b, 0x73, 0x6b, 0x2d, 0x31, 0x34, 0x31, 0x36, 0x35, 0x39, 0x34, 0x35, 0x35, 0x32,
+  0x38, 0x32, 0x37, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
+  0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04,
+  0x83, 0xe5, 0x81, 0x19, 0xd9, 0xfa, 0x64, 0x40, 0xad, 0x7c, 0x93, 0xfc, 0x15, 0x90, 0x6b,
+  0x38, 0x1e, 0xc5, 0xca, 0xb1, 0x6b, 0x0b, 0x1f, 0x64, 0xbf, 0x48, 0xaa, 0xd0, 0x91, 0x5c,
+  0x24, 0xd6, 0x78, 0x40, 0xfd, 0x95, 0x5d, 0x54, 0x64, 0xe1, 0x2d, 0x0e, 0x98, 0x66, 0x1d,
+  0x7a, 0xb0, 0x61, 0x17, 0x05, 0x26, 0x13, 0x63, 0x25, 0x7c, 0xda, 0x87, 0x11, 0xc9, 0x67,
+  0xcd, 0x12, 0x05, 0xf0, 0x16, 0x2f, 0x1b, 0x01, 0x03, 0x1c, 0x2a, 0x07, 0x28, 0x08, 0x05,
+  0x65, 0x63, 0x64, 0x73, 0x61, 0x08, 0x03, 0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b,
+  0x2d, 0x31, 0x34, 0x31, 0x36, 0x35, 0x39, 0x34, 0x35, 0x35, 0x32, 0x38, 0x32, 0x37, 0x08,
+  0x07, 0x49, 0x44, 0x2d, 0x43, 0x45, 0x52, 0x54, 0x17, 0x47, 0x30, 0x45, 0x02, 0x21, 0x00,
+  0x9b, 0xae, 0xf4, 0x87, 0x55, 0xaa, 0x78, 0xbf, 0x00, 0xff, 0x1a, 0xbe, 0x90, 0x46, 0x6e,
+  0xdd, 0xe6, 0x3b, 0x44, 0xfd, 0x41, 0x04, 0x86, 0xcc, 0x6a, 0x8b, 0x5a, 0x25, 0xbb, 0xf1,
+  0x55, 0xcd, 0x02, 0x20, 0x0e, 0x67, 0xd8, 0x86, 0xe8, 0x7c, 0x90, 0x3c, 0x13, 0xfd, 0x36,
+  0x9c, 0xbc, 0xa1, 0xc3, 0x7c, 0xe0, 0x0c, 0x6d, 0x64, 0xac, 0xdb, 0x69, 0x99, 0xde, 0x80,
+  0x35, 0x3f, 0xf4, 0x6a, 0xcd, 0x6f
+};
+
+const std::string SELF_SIGNED_ECDSA_CERT_INFO =
+  "Certificate name:\n"
+  "  /ecdsa/KEY/ksk-1416594552827/ID-CERT/%FD%00%00%01I%D3%9Dx%00\n"
+  "Validity:\n"
+  "  NotBefore: 20141121T182912\n"
+  "  NotAfter: 20341116T182912\n"
+  "Subject Description:\n"
+  "  2.5.4.41: /ecdsa/ksk-1416594552827\n"
+  "Public key bits: (ECDSA)\n"
+  "  MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEg+WBGdn6ZECtfJP8FZBrOB7FyrFr\n"
+  "  Cx9kv0iq0JFcJNZ4QP2VXVRk4S0OmGYderBhFwUmE2MlfNqHEclnzRIF\n"
+  "Signature Information:\n"
+  "  Signature Type: SignatureSha256WithEcdsa\n"
+  "  Key Locator: (Self-Signed) /ecdsa/KEY/ksk-1416594552827/ID-CERT\n";
+
+const uint8_t RSA_CERT[] = {
+  0x06, 0xfd, 0x02, 0xd7, 0x07, 0x38, 0x08, 0x03, 0x6e, 0x64, 0x6e, 0x08, 0x03, 0x4b, 0x45,
+  0x59, 0x08, 0x05, 0x73, 0x69, 0x74, 0x65, 0x31, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31,
+  0x34, 0x31, 0x36, 0x34, 0x32, 0x35, 0x33, 0x37, 0x37, 0x30, 0x39, 0x34, 0x08, 0x07, 0x49,
+  0x44, 0x2d, 0x43, 0x45, 0x52, 0x54, 0x08, 0x09, 0xfd, 0x00, 0x00, 0x01, 0x49, 0xc9, 0x8b,
+  0x2e, 0x73, 0x14, 0x03, 0x18, 0x01, 0x02, 0x15, 0xfd, 0x01, 0x61, 0x30, 0x82, 0x01, 0x5d,
+  0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34, 0x31, 0x31, 0x31, 0x39, 0x31, 0x39, 0x33,
+  0x33, 0x30, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x35, 0x31, 0x31, 0x31, 0x39, 0x31,
+  0x39, 0x33, 0x33, 0x30, 0x32, 0x5a, 0x30, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x29,
+  0x13, 0x0a, 0x2f, 0x6e, 0x64, 0x6e, 0x2f, 0x73, 0x69, 0x74, 0x65, 0x31, 0x30, 0x82, 0x01,
+  0x20, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05,
+  0x00, 0x03, 0x82, 0x01, 0x0d, 0x00, 0x30, 0x82, 0x01, 0x08, 0x02, 0x82, 0x01, 0x01, 0x00,
+  0xb6, 0x54, 0x7e, 0xe8, 0xf2, 0x91, 0x7d, 0xc1, 0x6d, 0xcb, 0x25, 0x44, 0x97, 0x90, 0xdc,
+  0x78, 0x15, 0x0e, 0xef, 0xb5, 0xe7, 0xfd, 0x09, 0x2c, 0xf8, 0xd5, 0x9c, 0x2f, 0xe5, 0xa6,
+  0xae, 0x9d, 0x7e, 0x95, 0x2d, 0xfc, 0xc7, 0xc3, 0x43, 0x46, 0xb0, 0x6f, 0x53, 0xcd, 0xcd,
+  0x6a, 0x29, 0x1d, 0x95, 0xa1, 0x62, 0xcd, 0xa9, 0xf2, 0xf8, 0xe2, 0xfa, 0x8b, 0x5d, 0xfe,
+  0xa1, 0x2b, 0x15, 0x3f, 0x7f, 0x71, 0xe6, 0x3e, 0xb9, 0xb1, 0x29, 0xd1, 0x22, 0x6f, 0x56,
+  0xdf, 0xb6, 0x85, 0xaf, 0xd4, 0xb3, 0x67, 0x8b, 0x94, 0xb8, 0x83, 0xcb, 0x72, 0x86, 0xc4,
+  0xf2, 0x86, 0xb2, 0x7c, 0x94, 0xbc, 0x38, 0x7b, 0x8c, 0x92, 0x86, 0x36, 0x83, 0x0e, 0x11,
+  0x8c, 0x95, 0x49, 0xff, 0xcc, 0x16, 0x62, 0xdb, 0x55, 0x40, 0x7f, 0xc8, 0x8d, 0xe4, 0x3f,
+  0x87, 0x02, 0x87, 0xaf, 0xf6, 0x2f, 0x8a, 0x7d, 0x74, 0x10, 0xd3, 0xbb, 0xa3, 0xfe, 0x5a,
+  0x7b, 0x8f, 0x56, 0x09, 0x8b, 0x49, 0x46, 0x9f, 0x7d, 0x55, 0xa3, 0x4a, 0xe8, 0x22, 0x7b,
+  0x80, 0x8a, 0x6f, 0xde, 0x9f, 0xfb, 0x2f, 0xeb, 0xf7, 0x29, 0x8a, 0x38, 0x67, 0x41, 0xae,
+  0x21, 0x7a, 0xe3, 0x7b, 0x96, 0x1a, 0x90, 0x35, 0x7d, 0x04, 0xaa, 0x4d, 0x9f, 0xe6, 0xd6,
+  0x00, 0x17, 0x4e, 0x02, 0x34, 0x6c, 0x56, 0x3a, 0x81, 0x3c, 0xb4, 0x7f, 0x98, 0x48, 0x22,
+  0xa0, 0x9f, 0x53, 0x35, 0xf9, 0x4e, 0xae, 0x8f, 0xc3, 0xfa, 0x0b, 0x93, 0xd4, 0x55, 0x78,
+  0x05, 0xb0, 0x40, 0x44, 0x48, 0x74, 0xb7, 0x9b, 0x2d, 0x65, 0xf0, 0x3d, 0x2e, 0x87, 0x2b,
+  0x48, 0x29, 0x12, 0x85, 0xf0, 0xaf, 0xc4, 0xdc, 0x73, 0xce, 0x18, 0x8b, 0xd9, 0x4c, 0x60,
+  0x15, 0x51, 0xae, 0x47, 0x1e, 0x2b, 0x54, 0xde, 0xf6, 0xba, 0x77, 0x30, 0x5d, 0x68, 0x9a,
+  0xfb, 0x02, 0x01, 0x11, 0x16, 0x2d, 0x1b, 0x01, 0x01, 0x1c, 0x28, 0x07, 0x26, 0x08, 0x03,
+  0x6e, 0x64, 0x6e, 0x08, 0x03, 0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31,
+  0x34, 0x31, 0x36, 0x34, 0x32, 0x35, 0x32, 0x39, 0x35, 0x35, 0x34, 0x36, 0x08, 0x07, 0x49,
+  0x44, 0x2d, 0x43, 0x45, 0x52, 0x54, 0x17, 0xfd, 0x01, 0x00, 0x26, 0x40, 0xbc, 0xf0, 0x28,
+  0x12, 0x69, 0x94, 0x11, 0x13, 0xff, 0x47, 0x2c, 0x6b, 0x12, 0xdd, 0xfa, 0x60, 0x92, 0xe9,
+  0x59, 0x10, 0x98, 0xd8, 0x11, 0x2a, 0xf0, 0x25, 0xb0, 0x03, 0xb2, 0xda, 0xd3, 0xb6, 0xa9,
+  0xfb, 0x8b, 0xc3, 0x6f, 0xfb, 0xb4, 0x93, 0x9b, 0x24, 0x9f, 0x7e, 0x63, 0x8a, 0x37, 0xea,
+  0x88, 0x74, 0xac, 0x0c, 0x04, 0x5b, 0xa2, 0x39, 0x0c, 0xa1, 0x9e, 0x0e, 0xa2, 0xd6, 0x74,
+  0xca, 0xc4, 0x92, 0x64, 0x9f, 0xc2, 0x68, 0x56, 0xef, 0xc5, 0x11, 0xe8, 0x7a, 0xf3, 0x21,
+  0xde, 0x88, 0x40, 0x70, 0x2b, 0x44, 0xe0, 0xcb, 0x3b, 0x33, 0xc6, 0x53, 0x65, 0x70, 0x56,
+  0x08, 0xe2, 0x22, 0x70, 0x9e, 0xe0, 0x38, 0x18, 0xa8, 0x7c, 0x7d, 0x09, 0x15, 0xac, 0xf1,
+  0x44, 0x63, 0x5d, 0xd5, 0x59, 0xf4, 0xeb, 0x60, 0x6c, 0x6e, 0x77, 0x36, 0x20, 0x2a, 0xe2,
+  0xd1, 0x2d, 0xa1, 0x7d, 0xd4, 0x6d, 0x29, 0x2d, 0x88, 0xde, 0x9e, 0xf8, 0x64, 0x41, 0x6a,
+  0xeb, 0x9f, 0x3b, 0x52, 0x06, 0xb1, 0x94, 0x09, 0x3b, 0xc9, 0xba, 0xa0, 0x05, 0x31, 0x2d,
+  0x49, 0x17, 0x5b, 0xc1, 0x62, 0xf5, 0x19, 0xce, 0x27, 0x7b, 0xe8, 0x4b, 0xeb, 0x80, 0x36,
+  0xf3, 0xd7, 0xe9, 0x59, 0x22, 0x50, 0x5a, 0x14, 0xb0, 0x1a, 0xa5, 0x6b, 0x33, 0xb2, 0x83,
+  0x72, 0x11, 0xf4, 0xd5, 0xd2, 0x32, 0x93, 0x94, 0xb6, 0x8d, 0xed, 0xcd, 0xce, 0x54, 0x79,
+  0xe8, 0xc3, 0x3c, 0xa8, 0xc6, 0x71, 0xa7, 0x61, 0xba, 0x70, 0x44, 0x94, 0xc9, 0xfc, 0xd0,
+  0x20, 0x00, 0x87, 0xdc, 0xf3, 0x3c, 0x47, 0x1b, 0x4f, 0x91, 0x4c, 0xc7, 0x49, 0xb7, 0xe4,
+  0xe3, 0x84, 0xb7, 0x82, 0x52, 0xec, 0x91, 0xa9, 0x28, 0x38, 0x2d, 0x48, 0x89, 0xc7, 0xcf,
+  0xfa, 0x63, 0x0b, 0xf0, 0x62, 0x51, 0xac, 0xe9, 0xdb, 0xfd, 0x1c
+};
+
+const std::string RSA_CERT_INFO =
+  "Certificate name:\n"
+  "  /ndn/KEY/site1/ksk-1416425377094/ID-CERT/%FD%00%00%01I%C9%8B.s\n"
+  "Validity:\n"
+  "  NotBefore: 20141119T193302\n"
+  "  NotAfter: 20151119T193302\n"
+  "Subject Description:\n"
+  "  2.5.4.41: /ndn/site1\n"
+  "Public key bits: (RSA)\n"
+  "  MIIBIDANBgkqhkiG9w0BAQEFAAOCAQ0AMIIBCAKCAQEAtlR+6PKRfcFtyyVEl5Dc\n"
+  "  eBUO77Xn/Qks+NWcL+Wmrp1+lS38x8NDRrBvU83NaikdlaFizany+OL6i13+oSsV\n"
+  "  P39x5j65sSnRIm9W37aFr9SzZ4uUuIPLcobE8oayfJS8OHuMkoY2gw4RjJVJ/8wW\n"
+  "  YttVQH/IjeQ/hwKHr/Yvin10ENO7o/5ae49WCYtJRp99VaNK6CJ7gIpv3p/7L+v3\n"
+  "  KYo4Z0GuIXrje5YakDV9BKpNn+bWABdOAjRsVjqBPLR/mEgioJ9TNflOro/D+guT\n"
+  "  1FV4BbBAREh0t5stZfA9LocrSCkShfCvxNxzzhiL2UxgFVGuRx4rVN72uncwXWia\n"
+  "  +wIB\n"
+  "Signature Information:\n"
+  "  Signature Type: SignatureSha256WithRsa\n"
+  "  Key Locator: (Name) /ndn/KEY/ksk-1416425295546/ID-CERT\n";
+
+BOOST_AUTO_TEST_CASE(Decode)
+{
+  ndn::Data data("/tmp");
+  data.setContent(REAL_CERT, sizeof(REAL_CERT));
+
+  Certificate certificate(data);
+
+  std::ostringstream os;
+  os << certificate;
+  std::string info(os.str());
+
+  BOOST_CHECK_EQUAL(REAL_CERT_INFO, info);
+
+
+  ndn::Block selfSignedCertBlock(SELF_SIGNED_ECDSA_CERT, sizeof(SELF_SIGNED_ECDSA_CERT));
+  Certificate selfSignedCert;
+  selfSignedCert.wireDecode(selfSignedCertBlock);
+
+  std::ostringstream selfSignedCertOs;
+  selfSignedCertOs << selfSignedCert;
+  std::string selfSignedCertInfo(selfSignedCertOs.str());
+
+  BOOST_CHECK_EQUAL(SELF_SIGNED_ECDSA_CERT_INFO, selfSignedCertInfo);
+
+
+  ndn::Block rsaCertBlock(RSA_CERT, sizeof(RSA_CERT));
+  Certificate rsaCert;
+  rsaCert.wireDecode(rsaCertBlock);
+
+  std::ostringstream rsaCertOs;
+  rsaCertOs << rsaCert;
+  std::string rsaCertInfo(rsaCertOs.str());
+
+  BOOST_CHECK_EQUAL(RSA_CERT_INFO, rsaCertInfo);
+}
+
+const uint8_t WRONG_CERT[] = { // first byte is wrong and an error will be thrown out
+  0x31, 0x82, 0x01, 0x63, 0x30, 0x22, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x33, 0x31, 0x31, 0x30,
+  0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x31, 0x34, 0x31,
+  0x31, 0x30, 0x31, 0x31, 0x37, 0x31, 0x31, 0x32, 0x32, 0x5a, 0x30, 0x19, 0x30, 0x17, 0x06,
+  0x03, 0x55, 0x04, 0x29, 0x13, 0x10, 0x4e, 0x44, 0x4e, 0x20, 0x54, 0x65, 0x73, 0x74, 0x62,
+  0x65, 0x64, 0x20, 0x52, 0x6f, 0x6f, 0x74, 0x30, 0x82, 0x01, 0x20, 0x30, 0x0d, 0x06, 0x09,
+  0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0d,
+  0x00, 0x30, 0x82, 0x01, 0x08, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd3, 0xac, 0x7e, 0x7a, 0x5c,
+  0x33, 0x58, 0x21, 0xda, 0xe0, 0x8d, 0xdb, 0xca, 0xb6, 0x02, 0x30, 0x02, 0x15, 0xc5, 0x0a,
+  0x51, 0x54, 0xbb, 0x8e, 0x5e, 0x9d, 0x21, 0xf8, 0x14, 0xbe, 0xe4, 0x63, 0x60, 0x31, 0x53,
+  0xe2, 0xef, 0xee, 0x34, 0xa3, 0x8c, 0xd2, 0x24, 0x6f, 0xa4, 0x89, 0x4f, 0x02, 0x20, 0x7d,
+  0x66, 0xb6, 0x3f, 0x11, 0x40, 0x0c, 0xc1, 0x5f, 0xd8, 0x45, 0x23, 0x95, 0x40, 0xc8, 0xe0,
+  0xbc, 0x9d, 0x2f, 0x03, 0xf1, 0x83, 0x9f, 0x07, 0x0b, 0x76, 0xc9, 0x10, 0xd9, 0x3e, 0x0b,
+  0x75, 0x13, 0x93, 0xe9, 0xc9, 0x85, 0x01, 0x88, 0x36, 0x2e, 0xab, 0xfc, 0xe6, 0x24, 0x32,
+  0xfc, 0xc6, 0x3c, 0x40, 0x97, 0x1a, 0xcc, 0xcd, 0x53, 0xaa, 0x0f, 0xfb, 0xa3, 0xfe, 0xf9,
+  0x24, 0x70, 0x13, 0x3f, 0x4f, 0x5b, 0x7d, 0x43, 0xaa, 0x75, 0x0a, 0x94, 0x72, 0xab, 0xe1,
+  0x8c, 0x45, 0xb5, 0x78, 0x10, 0x01, 0xef, 0x1f, 0xb3, 0x05, 0x6f, 0xa6, 0xc3, 0xac, 0x7f,
+  0x6d, 0xf0, 0x31, 0xc4, 0x83, 0xb3, 0x4f, 0x50, 0x26, 0x92, 0x40, 0x1a, 0xdd, 0xec, 0xfb,
+  0xcb, 0xef, 0x63, 0xfe, 0x41, 0xd8, 0x8d, 0x1f, 0xdc, 0xec, 0xfc, 0x48, 0x95, 0xcc, 0x09,
+  0x1e, 0x30, 0x6e, 0x22, 0x9e, 0x24, 0x97, 0x2e, 0xe6, 0x0c, 0xdf, 0x3d, 0x20, 0x32, 0xaa,
+  0x9c, 0xc9, 0x45, 0x14, 0xaf, 0xaa, 0xf5, 0x17, 0xd2, 0x01, 0x98, 0x33, 0xbe, 0x2a, 0x9f,
+  0x7b, 0x9d, 0x98, 0x7c, 0x54, 0x22, 0xfe, 0x72, 0x72, 0x04, 0xc3, 0x2c, 0xc0, 0x14, 0x0b,
+  0xa9, 0x40, 0x7e, 0x46, 0xa1, 0x75, 0x16, 0x1a, 0x27, 0x9e, 0xf2, 0x82, 0x96, 0xc0, 0x7d,
+  0xaf, 0x18, 0x75, 0xfb, 0xbb, 0xab, 0x16, 0x66, 0xc0, 0xa9, 0xd7, 0x93, 0x4c, 0x48, 0x6d,
+  0xce, 0x0b, 0x88, 0xd4, 0x21, 0x93, 0x84, 0x89, 0x55, 0x05, 0xd5, 0x02, 0x01, 0x11
+};
+
+BOOST_AUTO_TEST_CASE(DecodeError)
+{
+  ndn::Data data("/tmp");
+  data.setContent(WRONG_CERT, sizeof(WRONG_CERT));
+
+  BOOST_CHECK_THROW(Certificate certificate(data), Certificate::Error);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestCertificate
+BOOST_AUTO_TEST_SUITE_END() // V1
+BOOST_AUTO_TEST_SUITE_END() // Security
+
+} // namespace tests
+} // namespace v1
+} // namespace security
+} // namespace ndn
diff --git a/tests/unit-tests/security/public-key.t.cpp b/tests/unit-tests/security/v1/public-key.t.cpp
similarity index 90%
rename from tests/unit-tests/security/public-key.t.cpp
rename to tests/unit-tests/security/v1/public-key.t.cpp
index ae85d4c..53df40c 100644
--- a/tests/unit-tests/security/public-key.t.cpp
+++ b/tests/unit-tests/security/v1/public-key.t.cpp
@@ -19,16 +19,20 @@
  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
  */
 
-#include "security/public-key.hpp"
-#include "security/cryptopp.hpp"
+#include "security/v1/public-key.hpp"
+#include "security/v1/cryptopp.hpp"
 #include "encoding/buffer-stream.hpp"
 
 #include "boost-test.hpp"
 
 namespace ndn {
+namespace security {
+namespace v1 {
 namespace tests {
 
-BOOST_AUTO_TEST_SUITE(SecurityPublicKey)
+BOOST_AUTO_TEST_SUITE(Security)
+BOOST_AUTO_TEST_SUITE(V1)
+BOOST_AUTO_TEST_SUITE(TestPublicKey)
 
 const std::string RSA_DER("MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuFoDcNtffwbfFix64fw0\
 hI2tKMkFrc6Ex7yw0YLMK9vGE8lXOyBl/qXabow6RCz+GldmFN6E2Qhm1+AX3Zm5\
@@ -57,7 +61,7 @@
     0xb5, 0x9d, 0x80, 0x65, 0x80, 0x6b, 0x4b, 0x63
 };
 
-BOOST_AUTO_TEST_CASE(RSA)
+BOOST_AUTO_TEST_CASE(Rsa)
 {
   using namespace CryptoPP;
 
@@ -79,7 +83,7 @@
                                 digest.wire() + digest.size());
 }
 
-BOOST_AUTO_TEST_CASE(ECDSA)
+BOOST_AUTO_TEST_CASE(Ecdsa)
 {
   using namespace CryptoPP;
 
@@ -101,8 +105,11 @@
                                 digest.wire() + digest.size());
 }
 
-
-BOOST_AUTO_TEST_SUITE_END()
+BOOST_AUTO_TEST_SUITE_END() // TestPublicKey
+BOOST_AUTO_TEST_SUITE_END() // V1
+BOOST_AUTO_TEST_SUITE_END() // Security
 
 } // namespace tests
+} // namespace v1
+} // namespace security
 } // namespace ndn
diff --git a/tests/unit-tests/security/additional-info.t.cpp b/tests/unit-tests/security/v2/additional-info.t.cpp
similarity index 96%
rename from tests/unit-tests/security/additional-info.t.cpp
rename to tests/unit-tests/security/v2/additional-info.t.cpp
index 63320f7..b82d56d 100644
--- a/tests/unit-tests/security/additional-info.t.cpp
+++ b/tests/unit-tests/security/v2/additional-info.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2015 Regents of the University of California.
+ * Copyright (c) 2013-2016 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -19,7 +19,7 @@
  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
  */
 
-#include "security/additional-description.hpp"
+#include "security/v2/additional-description.hpp"
 
 #include "boost-test.hpp"
 
diff --git a/tests/unit-tests/security/validator-config.t.cpp b/tests/unit-tests/security/validator-config.t.cpp
index 63b0142..2065a7c 100644
--- a/tests/unit-tests/security/validator-config.t.cpp
+++ b/tests/unit-tests/security/validator-config.t.cpp
@@ -49,7 +49,7 @@
   identity.appendVersion();
   BOOST_REQUIRE_NO_THROW(addIdentity(identity));
   Name certName = m_keyChain.getDefaultCertificateNameForIdentity(identity);
-  shared_ptr<IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
+  shared_ptr<v1::IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
   io::save(*idCert, "trust-anchor-1.cert");
 
   Name dataName1("/simple/equal");
@@ -119,7 +119,7 @@
   identity.appendVersion();
   BOOST_REQUIRE_NO_THROW(addIdentity(identity));
   Name certName = m_keyChain.getDefaultCertificateNameForIdentity(identity);
-  shared_ptr<IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
+  shared_ptr<v1::IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
   io::save(*idCert, "trust-anchor-2.cert");
 
   Name dataName1("/simple/isPrefixOf");
@@ -197,7 +197,7 @@
   identity.appendVersion();
   BOOST_REQUIRE_NO_THROW(addIdentity(identity));
   Name certName = m_keyChain.getDefaultCertificateNameForIdentity(identity);
-  shared_ptr<IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
+  shared_ptr<v1::IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
   io::save(*idCert, "trust-anchor-3.cert");
 
   Name dataName1("/simple/isStrictPrefixOf");
@@ -275,7 +275,7 @@
   identity.appendVersion();
   BOOST_REQUIRE_NO_THROW(addIdentity(identity));
   Name certName = m_keyChain.getDefaultCertificateNameForIdentity(identity);
-  shared_ptr<IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
+  shared_ptr<v1::IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
   io::save(*idCert, "trust-anchor-4.cert");
 
   Name dataName1("/simple/regex");
@@ -352,7 +352,7 @@
   identity.appendVersion();
   BOOST_REQUIRE_NO_THROW(addIdentity(identity));
   Name certName = m_keyChain.getDefaultCertificateNameForIdentity(identity);
-  shared_ptr<IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
+  shared_ptr<v1::IdentityCertificate> idCert = m_keyChain.getCertificate(certName);
   io::save(*idCert, "trust-anchor-5.cert");
 
   Name dataName1 = identity;
@@ -428,7 +428,7 @@
   identity1.append("1").appendVersion();
   BOOST_REQUIRE_NO_THROW(addIdentity(identity1));
   Name certName1 = m_keyChain.getDefaultCertificateNameForIdentity(identity1);
-  shared_ptr<IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
+  shared_ptr<v1::IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
   io::save(*idCert1, "trust-anchor-7.cert");
 
   Name identity2 = identity;
@@ -541,7 +541,7 @@
   identity1.appendVersion();
   addIdentity(identity1);
   Name certName1 = m_keyChain.getDefaultCertificateNameForIdentity(identity1);
-  shared_ptr<IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
+  shared_ptr<v1::IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
   std::string certDir1 = certDir + "trust-anchor-multi-1.cert";
   io::save(*idCert1, certDir1);
 
@@ -549,7 +549,7 @@
   identity2.appendVersion();
   addIdentity(identity2);
   Name certName2 = m_keyChain.getDefaultCertificateNameForIdentity(identity2);
-  shared_ptr<IdentityCertificate> idCert2 = m_keyChain.getCertificate(certName2);
+  shared_ptr<v1::IdentityCertificate> idCert2 = m_keyChain.getCertificate(certName2);
   std::string certDir2 = certDir + "trust-anchor-multi-2.cert";
   io::save(*idCert2, certDir2);
 
@@ -662,7 +662,7 @@
   Name root("/TestValidatorConfig/Reload");
   BOOST_REQUIRE_NO_THROW(addIdentity(root));
   Name rootCertName = m_keyChain.getDefaultCertificateNameForIdentity(root);
-  shared_ptr<IdentityCertificate> rootCert = m_keyChain.getCertificate(rootCertName);
+  shared_ptr<v1::IdentityCertificate> rootCert = m_keyChain.getCertificate(rootCertName);
   io::save(*rootCert, "trust-anchor-8.cert");
 
   Face face(nullptr, m_keyChain);
@@ -761,7 +761,7 @@
   identity1.appendVersion();
   BOOST_REQUIRE_NO_THROW(addIdentity(identity1));
   Name certName1 = m_keyChain.getDefaultCertificateNameForIdentity(identity1);
-  shared_ptr<IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
+  shared_ptr<v1::IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
   io::save(*idCert1, "trust-anchor-9.cert");
 
   Name interestName("/TestValidatorConfig/SignedInterestTest");
@@ -831,21 +831,21 @@
   identity1.append("Key1");
   BOOST_REQUIRE_NO_THROW(addIdentity(identity1));
   Name certName1 = m_keyChain.getDefaultCertificateNameForIdentity(identity1);
-  shared_ptr<IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
+  shared_ptr<v1::IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
   io::save(*idCert1, "trust-anchor-10-1.cert");
 
   Name identity2 = identity;
   identity2.append("Key2");
   BOOST_REQUIRE_NO_THROW(addIdentity(identity2));
   Name certName2 = m_keyChain.getDefaultCertificateNameForIdentity(identity2);
-  shared_ptr<IdentityCertificate> idCert2 = m_keyChain.getCertificate(certName2);
+  shared_ptr<v1::IdentityCertificate> idCert2 = m_keyChain.getCertificate(certName2);
   io::save(*idCert2, "trust-anchor-10-2.cert");
 
   Name identity3 = identity;
   identity3.append("Key3");
   BOOST_REQUIRE_NO_THROW(addIdentity(identity3));
   Name certName3 = m_keyChain.getDefaultCertificateNameForIdentity(identity3);
-  shared_ptr<IdentityCertificate> idCert3 = m_keyChain.getCertificate(certName3);
+  shared_ptr<v1::IdentityCertificate> idCert3 = m_keyChain.getCertificate(certName3);
   io::save(*idCert3, "trust-anchor-10-3.cert");
 
 
@@ -952,28 +952,28 @@
   identity1.append("Key1");
   BOOST_REQUIRE_NO_THROW(addIdentity(identity1));
   Name certName1 = m_keyChain.getDefaultCertificateNameForIdentity(identity1);
-  shared_ptr<IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
+  shared_ptr<v1::IdentityCertificate> idCert1 = m_keyChain.getCertificate(certName1);
   io::save(*idCert1, "trust-anchor-10-1.cert");
 
   Name identity2 = identity;
   identity2.append("Key2");
   BOOST_REQUIRE_NO_THROW(addIdentity(identity2));
   Name certName2 = m_keyChain.getDefaultCertificateNameForIdentity(identity2);
-  shared_ptr<IdentityCertificate> idCert2 = m_keyChain.getCertificate(certName2);
+  shared_ptr<v1::IdentityCertificate> idCert2 = m_keyChain.getCertificate(certName2);
   io::save(*idCert2, "trust-anchor-10-2.cert");
 
   Name identity3 = identity;
   identity3.append("Key3");
   BOOST_REQUIRE_NO_THROW(addIdentity(identity3));
   Name certName3 = m_keyChain.getDefaultCertificateNameForIdentity(identity3);
-  shared_ptr<IdentityCertificate> idCert3 = m_keyChain.getCertificate(certName3);
+  shared_ptr<v1::IdentityCertificate> idCert3 = m_keyChain.getCertificate(certName3);
   io::save(*idCert3, "trust-anchor-10-3.cert");
 
   Name identity4 = identity;
   identity4.append("Key4");
   BOOST_REQUIRE_NO_THROW(addIdentity(identity4));
   Name certName4 = m_keyChain.getDefaultCertificateNameForIdentity(identity4);
-  shared_ptr<IdentityCertificate> idCert4 = m_keyChain.getCertificate(certName4);
+  shared_ptr<v1::IdentityCertificate> idCert4 = m_keyChain.getCertificate(certName4);
   io::save(*idCert4, "trust-anchor-10-4.cert");
 
 
@@ -1119,7 +1119,7 @@
   Name ecdsaIdentity("/TestValidatorConfig/FixedSignerChecker2/Ecdsa");
   BOOST_REQUIRE_NO_THROW(addIdentity(ecdsaIdentity, EcdsaKeyParams()));
   Name ecdsaCertName = m_keyChain.getDefaultCertificateNameForIdentity(ecdsaIdentity);
-  shared_ptr<IdentityCertificate> ecdsaCert = m_keyChain.getCertificate(ecdsaCertName);
+  shared_ptr<v1::IdentityCertificate> ecdsaCert = m_keyChain.getCertificate(ecdsaCertName);
   io::save(*ecdsaCert, "trust-anchor-11.cert");
 
 
@@ -1261,12 +1261,12 @@
 
 BOOST_FIXTURE_TEST_CASE(HierarchicalChecker, FacesFixture)
 {
-  std::vector<CertificateSubjectDescription> subjectDescription;
+  std::vector<v1::CertificateSubjectDescription> subjectDescription;
 
   Name root("/TestValidatorConfig");
   BOOST_REQUIRE_NO_THROW(addIdentity(root));
   Name rootCertName = m_keyChain.getDefaultCertificateNameForIdentity(root);
-  shared_ptr<IdentityCertificate> rootCert = m_keyChain.getCertificate(rootCertName);
+  shared_ptr<v1::IdentityCertificate> rootCert = m_keyChain.getCertificate(rootCertName);
   io::save(*rootCert, "trust-anchor-6.cert");
 
 
@@ -1274,7 +1274,7 @@
   BOOST_REQUIRE_NO_THROW(addIdentity(sld));
   advanceClocks(time::milliseconds(100));
   Name sldKeyName = m_keyChain.generateRsaKeyPairAsDefault(sld, true);
-  shared_ptr<IdentityCertificate> sldCert =
+  shared_ptr<v1::IdentityCertificate> sldCert =
     m_keyChain.prepareUnsignedIdentityCertificate(sldKeyName,
                                                   root,
                                                   time::system_clock::now(),
@@ -1287,7 +1287,7 @@
   BOOST_REQUIRE_NO_THROW(addIdentity(nld));
   advanceClocks(time::milliseconds(100));
   Name nldKeyName = m_keyChain.generateRsaKeyPairAsDefault(nld, true);
-  shared_ptr<IdentityCertificate> nldCert =
+  shared_ptr<v1::IdentityCertificate> nldCert =
     m_keyChain.prepareUnsignedIdentityCertificate(nldKeyName,
                                                   sld,
                                                   time::system_clock::now(),
@@ -1366,12 +1366,12 @@
 {
   advanceClocks(time::nanoseconds(1));
 
-  std::vector<CertificateSubjectDescription> subjectDescription;
+  std::vector<v1::CertificateSubjectDescription> subjectDescription;
 
   Name root("/TestValidatorConfig");
   BOOST_REQUIRE_NO_THROW(addIdentity(root));
   Name rootCertName = m_keyChain.getDefaultCertificateNameForIdentity(root);
-  shared_ptr<IdentityCertificate> rootCert = m_keyChain.getCertificate(rootCertName);
+  shared_ptr<v1::IdentityCertificate> rootCert = m_keyChain.getCertificate(rootCertName);
   io::save(*rootCert, "trust-anchor-8.cert");
 
 
@@ -1379,7 +1379,7 @@
   BOOST_REQUIRE_NO_THROW(addIdentity(sld));
   advanceClocks(time::milliseconds(100));
   Name sldKeyName = m_keyChain.generateRsaKeyPairAsDefault(sld, true);
-  shared_ptr<IdentityCertificate> sldCert =
+  shared_ptr<v1::IdentityCertificate> sldCert =
     m_keyChain.prepareUnsignedIdentityCertificate(sldKeyName,
                                                   root,
                                                   time::system_clock::now(),
@@ -1392,7 +1392,7 @@
   BOOST_REQUIRE_NO_THROW(addIdentity(nld));
   advanceClocks(time::milliseconds(100));
   Name nldKeyName = m_keyChain.generateRsaKeyPairAsDefault(nld, true);
-  shared_ptr<IdentityCertificate> nldCert =
+  shared_ptr<v1::IdentityCertificate> nldCert =
     m_keyChain.prepareUnsignedIdentityCertificate(nldKeyName,
                                                   sld,
                                                   time::system_clock::now(),
@@ -1563,8 +1563,8 @@
   Name firstIdentity;
   Name secondIdentity;
 
-  shared_ptr<IdentityCertificate> firstCert;
-  shared_ptr<IdentityCertificate> secondCert;
+  shared_ptr<v1::IdentityCertificate> firstCert;
+  shared_ptr<v1::IdentityCertificate> secondCert;
 
   util::DummyClientFace face;
   ValidatorConfig validator;
diff --git a/tests/unit-tests/security/validator.t.cpp b/tests/unit-tests/security/validator.t.cpp
index 8fa26ec..65c5095 100644
--- a/tests/unit-tests/security/validator.t.cpp
+++ b/tests/unit-tests/security/validator.t.cpp
@@ -27,8 +27,11 @@
 #include "../make-interest-data.hpp"
 
 namespace ndn {
+namespace security {
 namespace tests {
 
+using namespace ndn::tests;
+
 BOOST_AUTO_TEST_SUITE(Security)
 BOOST_FIXTURE_TEST_SUITE(TestValidator, IdentityManagementFixture)
 
@@ -94,12 +97,12 @@
   Name identity("/TestValidator/RsaSignatureVerification");
   BOOST_REQUIRE(addIdentity(identity, RsaKeyParams()));
   Name keyName = m_keyChain.getDefaultKeyNameForIdentity(identity);
-  shared_ptr<PublicKey> publicKey = m_keyChain.getPublicKey(keyName);
+  shared_ptr<v1::PublicKey> publicKey = m_keyChain.getPublicKey(keyName);
 
   Name identity2("/TestValidator/RsaSignatureVerification/id2");
   BOOST_REQUIRE(addIdentity(identity2, RsaKeyParams()));
   Name keyName2 = m_keyChain.getDefaultKeyNameForIdentity(identity2);
-  shared_ptr<PublicKey> publicKey2 = m_keyChain.getPublicKey(keyName2);
+  shared_ptr<v1::PublicKey> publicKey2 = m_keyChain.getPublicKey(keyName2);
 
   Data data("/TestData/1");
   BOOST_CHECK_NO_THROW(m_keyChain.sign(data,
@@ -157,12 +160,12 @@
   Name identity("/TestValidator/EcdsaSignatureVerification");
   BOOST_REQUIRE(addIdentity(identity, EcdsaKeyParams()));
   Name keyName = m_keyChain.getDefaultKeyNameForIdentity(identity);
-  shared_ptr<PublicKey> publicKey = m_keyChain.getPublicKey(keyName);
+  shared_ptr<v1::PublicKey> publicKey = m_keyChain.getPublicKey(keyName);
 
   Name identity2("/TestValidator/EcdsaSignatureVerification/id2");
   BOOST_REQUIRE(addIdentity(identity2, EcdsaKeyParams()));
   Name keyName2 = m_keyChain.getDefaultKeyNameForIdentity(identity2);
-  shared_ptr<PublicKey> publicKey2 = m_keyChain.getPublicKey(keyName2);
+  shared_ptr<v1::PublicKey> publicKey2 = m_keyChain.getPublicKey(keyName2);
 
 
   Data data("/TestData/1");
@@ -192,12 +195,12 @@
   Name ecdsaIdentity("/SecurityTestValidator/EcdsaSignatureVerification2/ecdsa");
   BOOST_REQUIRE(addIdentity(ecdsaIdentity, EcdsaKeyParams()));
   Name ecdsaCertName = m_keyChain.getDefaultCertificateNameForIdentity(ecdsaIdentity);
-  shared_ptr<IdentityCertificate> ecdsaCert = m_keyChain.getCertificate(ecdsaCertName);
+  shared_ptr<v1::IdentityCertificate> ecdsaCert = m_keyChain.getCertificate(ecdsaCertName);
 
   Name rsaIdentity("/SecurityTestValidator/EcdsaSignatureVerification2/rsa");
   BOOST_REQUIRE(addIdentity(rsaIdentity, RsaKeyParams()));
   Name rsaCertName = m_keyChain.getDefaultCertificateNameForIdentity(rsaIdentity);
-  shared_ptr<IdentityCertificate> rsaCert = m_keyChain.getCertificate(rsaCertName);
+  shared_ptr<v1::IdentityCertificate> rsaCert = m_keyChain.getCertificate(rsaCertName);
 
   Name packetName("/Test/Packet/Name");
 
@@ -243,7 +246,7 @@
 
   setNameComponent(*interest, signed_interest::POS_SIG_INFO, "not-SignatureInfo");
 
-  PublicKey pubkey = m_keyChain.getDefaultCertificate()->getPublicKeyInfo();
+  v1::PublicKey pubkey = m_keyChain.getDefaultCertificate()->getPublicKeyInfo();
   BOOST_CHECK_EQUAL(Validator::verifySignature(*interest, pubkey), false);
 }
 
@@ -254,7 +257,7 @@
 
   setNameComponent(*interest, signed_interest::POS_SIG_VALUE, "bad-signature-bits");
 
-  PublicKey pubkey = m_keyChain.getDefaultCertificate()->getPublicKeyInfo();
+  v1::PublicKey pubkey = m_keyChain.getDefaultCertificate()->getPublicKeyInfo();
   BOOST_CHECK_EQUAL(Validator::verifySignature(*interest, pubkey), false);
 }
 
@@ -262,4 +265,5 @@
 BOOST_AUTO_TEST_SUITE_END() // Security
 
 } // namespace tests
+} // namespace security
 } // namespace ndn