security: Add wrapper for public/private key in transformation

Change-Id: I6610cccc8bb20b4e9e227895cf24b595a6e13698
Refs: #3009, #3010
diff --git a/tests/unit-tests/security/transform/public-key.t.cpp b/tests/unit-tests/security/transform/public-key.t.cpp
new file mode 100644
index 0000000..1009bd9
--- /dev/null
+++ b/tests/unit-tests/security/transform/public-key.t.cpp
@@ -0,0 +1,127 @@
+/* -*- 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/transform/public-key.hpp"
+#include "security/transform/buffer-source.hpp"
+#include "security/transform/base64-decode.hpp"
+#include "security/transform/stream-sink.hpp"
+#include "encoding/buffer-stream.hpp"
+
+#include <boost/mpl/list.hpp>
+#include "boost-test.hpp"
+
+namespace ndn {
+namespace security {
+namespace transform {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(Security)
+BOOST_AUTO_TEST_SUITE(Transform)
+BOOST_AUTO_TEST_SUITE(TestPublicKey)
+
+class RsaPublicKeyTestData
+{
+public:
+  RsaPublicKeyTestData()
+  {
+    publicKeyPkcs8 =
+      "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw0WM1/WhAxyLtEqsiAJg\n"
+      "WDZWuzkYpeYVdeeZcqRZzzfRgBQTsNozS5t4HnwTZhwwXbH7k3QN0kRTV826Xobw\n"
+      "s3iigohnM9yTK+KKiayPhIAm/+5HGT6SgFJhYhqo1/upWdueojil6RP4/AgavHho\n"
+      "pxlAVbk6G9VdVnlQcQ5Zv0OcGi73c+EnYD/YgURYGSngUi/Ynsh779p2U69/te9g\n"
+      "ZwIL5PuE9BiO6I39cL9z7EK1SfZhOWvDe/qH7YhD/BHwcWit8FjRww1glwRVTJsA\n"
+      "9rH58ynaAix0tcR/nBMRLUX+e3rURHg6UbSjJbdb9qmKM1fTGHKUzL/5pMG6uBU0\n"
+      "ywIDAQAB\n";
+  }
+
+public:
+  std::string publicKeyPkcs8;
+};
+
+class EcdsaPublicKeyTestData
+{
+public:
+  EcdsaPublicKeyTestData()
+  {
+    publicKeyPkcs8 =
+      "MIIBSzCCAQMGByqGSM49AgEwgfcCAQEwLAYHKoZIzj0BAQIhAP////8AAAABAAAA\n"
+      "AAAAAAAAAAAA////////////////MFsEIP////8AAAABAAAAAAAAAAAAAAAA////\n"
+      "///////////8BCBaxjXYqjqT57PrvVV2mIa8ZR0GsMxTsPY7zjw+J9JgSwMVAMSd\n"
+      "NgiG5wSTamZ44ROdJreBn36QBEEEaxfR8uEsQkf4vOblY6RA8ncDfYEt6zOg9KE5\n"
+      "RdiYwpZP40Li/hp/m47n60p8D54WK84zV2sxXs7LtkBoN79R9QIhAP////8AAAAA\n"
+      "//////////+85vqtpxeehPO5ysL8YyVRAgEBA0IABGhuFibgwLdEJBDOLdvSg1Hc\n"
+      "5EJTDxq6ls5FoYLfThp8HOjuwGSz0qw8ocMqyku1y0V5peQ4rEPd0bwcpZd9svA=\n";
+  }
+
+public:
+  std::string publicKeyPkcs8;
+};
+
+typedef boost::mpl::list<RsaPublicKeyTestData,
+                         EcdsaPublicKeyTestData> PublicKeyTestDataSets;
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(SaveLoad, T, PublicKeyTestDataSets)
+{
+  T dataSet;
+
+  const uint8_t* pKeyPkcs8Base64 = reinterpret_cast<const uint8_t*>(dataSet.publicKeyPkcs8.c_str());
+  size_t pKeyPkcs8Base64Len = dataSet.publicKeyPkcs8.size();
+
+  OBufferStream os;
+  bufferSource(pKeyPkcs8Base64, pKeyPkcs8Base64Len) >> base64Decode() >> streamSink(os);
+  ConstBufferPtr pKeyPkcs8Buf = os.buf();
+  const uint8_t* pKeyPkcs8 = pKeyPkcs8Buf->buf();
+  size_t pKeyPkcs8Len = pKeyPkcs8Buf->size();
+
+  PublicKey pKey1;
+  BOOST_REQUIRE_NO_THROW(pKey1.loadPkcs8Base64(pKeyPkcs8Base64, pKeyPkcs8Base64Len));
+
+  std::stringstream ss2(dataSet.publicKeyPkcs8);
+  PublicKey pKey2;
+  BOOST_REQUIRE_NO_THROW(pKey2.loadPkcs8Base64(ss2));
+
+  PublicKey pKey3;
+  BOOST_REQUIRE_NO_THROW(pKey3.loadPkcs8(pKeyPkcs8, pKeyPkcs8Len));
+
+  std::stringstream ss4;
+  ss4.write(reinterpret_cast<const char*>(pKeyPkcs8), pKeyPkcs8Len);
+  PublicKey pKey4;
+  BOOST_REQUIRE_NO_THROW(pKey4.loadPkcs8(ss4));
+
+  OBufferStream os5;
+  BOOST_REQUIRE_NO_THROW(pKey1.savePkcs8Base64(os5));
+  BOOST_CHECK_EQUAL_COLLECTIONS(pKeyPkcs8Base64, pKeyPkcs8Base64 + pKeyPkcs8Base64Len,
+                                os5.buf()->begin(), os5.buf()->end());
+
+  OBufferStream os6;
+  BOOST_REQUIRE_NO_THROW(pKey1.savePkcs8(os6));
+  BOOST_CHECK_EQUAL_COLLECTIONS(pKeyPkcs8, pKeyPkcs8 + pKeyPkcs8Len,
+                                os6.buf()->begin(), os6.buf()->end());
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestPublicKey
+BOOST_AUTO_TEST_SUITE_END() // Transform
+BOOST_AUTO_TEST_SUITE_END() // Security
+
+} // namespace tests
+} // namespace transform
+} // namespace security
+} // namespace ndn