| /* -*- 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. |
| */ |
| |
| #ifndef NDN_CXX_SECURITY_TRANSFORM_DIGEST_FILTER_HPP |
| #define NDN_CXX_SECURITY_TRANSFORM_DIGEST_FILTER_HPP |
| |
| #include "transform-base.hpp" |
| #include "../security-common.hpp" |
| |
| namespace ndn { |
| namespace security { |
| namespace transform { |
| |
| /** |
| * @brief The module to calculate digest. |
| */ |
| class DigestFilter : public Transform |
| { |
| public: |
| /** |
| * @brief Create a digest module with algorithm @p algo |
| */ |
| explicit |
| DigestFilter(DigestAlgorithm algo); |
| |
| private: |
| /** |
| * @brief Append data @p buf into digest calculation |
| * |
| * @return The number of bytes that have been accepted |
| */ |
| virtual size_t |
| convert(const uint8_t* buf, size_t size) final; |
| |
| /** |
| * @brief Finalize digest calculation and write the digest into next module. |
| */ |
| virtual void |
| finalize() final; |
| |
| private: |
| class Impl; |
| unique_ptr<Impl> m_impl; |
| }; |
| |
| unique_ptr<Transform> |
| digestFilter(DigestAlgorithm algo = DigestAlgorithm::SHA256); |
| |
| } // namespace transform |
| } // namespace security |
| } // namespace ndn |
| |
| #endif // NDN_CXX_SECURITY_TRANSFORM_DIGEST_FILTER_HPP |