diff --git a/tests/unit-tests/security/test-digest-sha256.cpp b/tests/unit-tests/security/test-digest-sha256.cpp
new file mode 100644
index 0000000..94ded5b
--- /dev/null
+++ b/tests/unit-tests/security/test-digest-sha256.cpp
@@ -0,0 +1,71 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2014 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "security/key-chain.hpp"
+#include "security/validator.hpp"
+
+#include "security/cryptopp.hpp"
+
+#include "boost-test.hpp"
+
+using namespace std;
+namespace ndn {
+
+BOOST_AUTO_TEST_SUITE(SecurityTestDigestSha256)
+
+string SHA256_RESULT("a883dafc480d466ee04e0d6da986bd78eb1fdd2178d04693723da3a8f95d42f4");
+
+BOOST_AUTO_TEST_CASE (Sha256)
+{
+  using namespace CryptoPP;
+
+  char content[6] = "1234\n";
+  ConstBufferPtr buf = crypto::sha256(reinterpret_cast<uint8_t*>(content), 5);
+  string result;
+  StringSource(buf->buf(), buf->size(), true, new HexEncoder(new StringSink(result), false));
+
+  BOOST_REQUIRE_EQUAL(SHA256_RESULT, result);
+}
+
+BOOST_AUTO_TEST_CASE (Signature)
+{
+  using namespace CryptoPP;
+
+  Name name("/TestSignatureSha/Basic");
+  Data testData(name);
+  char content[5] = "1234";
+  testData.setContent(reinterpret_cast<uint8_t*>(content), 5);
+
+  BOOST_REQUIRE_NO_THROW(KeyChain("sqlite3", "file"));
+  KeyChain keyChain("sqlite3", "file");
+
+  keyChain.signWithSha256(testData);
+
+  testData.wireEncode();
+
+  DigestSha256 sig(testData.getSignature());
+
+  BOOST_REQUIRE(Validator::verifySignature(testData, sig));
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace ndn