text: /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
  /*
   * Copyright (c) 2013-2018 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_SECURITY_DIGEST_SHA256_HPP
  #define NDN_SECURITY_DIGEST_SHA256_HPP
  
  #include "../signature.hpp"
  
  namespace ndn {
  
  /** @brief Represents a signature of DigestSha256 type
   *
   *  This signature type provides integrity protection using SHA-256 digest, but no provenance of a
   *  Data packet or any kind of guarantee that packet is from the original source.
   */
  class DigestSha256 : public Signature
  {
  public:
    /** @brief Create empty DigestSha256 signature
     */
    DigestSha256();
  
    /** @brief Convert base Signature to DigestSha256 signature
     *  @throw Signature::Error SignatureType is not DigestSha256
     */
    explicit
    DigestSha256(const Signature& signature);
  };
  
  } // namespace ndn
  
  #endif // NDN_SECURITY_DIGEST_SHA256_HPP
  