Sha2.h

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// this is for emacs file handling -*- mode: c++; indent-tabs-mode: nil -*-

// -- BEGIN LICENSE BLOCK ----------------------------------------------
// This file is part of FZIs ic_workspace.
//
// This program is free software licensed under the LGPL
// (GNU LESSER GENERAL PUBLIC LICENSE Version 3).
// You can find a copy of this license in LICENSE folder in the top
// directory of the source code.
//
// © Copyright 2016 FZI Forschungszentrum Informatik, Karlsruhe, Germany
//
// -- END LICENSE BLOCK ------------------------------------------------

//----------------------------------------------------------------------
//----------------------------------------------------------------------
#ifndef ICL_CORE_CRYPT_SHA2_H_INCLUDED
#define ICL_CORE_CRYPT_SHA2_H_INCLUDED

#include <icl_core/BaseTypes.h>

#include "icl_core_crypt/Sha2Impl.h"

namespace icl_core {
namespace crypt {

template <typename T, T t_h0, T t_h1, T t_h2, T t_h3, T t_h4, T t_h5, T t_h6, T t_h7, size_t t_len>
class Sha2 : public Sha2Impl<T, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len>
{
public:
  typedef Sha2Impl<T, t_h0, t_h1, t_h2, t_h3, t_h4, t_h5, t_h6, t_h7, t_len> Impl;
  using Impl::cMESSAGE_BLOCK_SIZE;
  using Impl::cMESSAGE_PAD_POSITION;
  using Impl::clear;
  using Impl::getHexDigest;

  Sha2();

  Sha2& process(const char *data);
  inline Sha2& process(const ::icl_core::String& data)
  { return process(data.c_str(), data.size()); }
  Sha2& process(const void *data, size_t size);

  Sha2& finalize();

protected:
  void finalizeBuffer(size_t size);

  using Impl::processBuffer;
  using Impl::m_digest;
  using Impl::m_message_size;
  using Impl::m_buffer;
  using Impl::m_buffer_fill;
};

}
}

#include "icl_core_crypt/Sha2.hpp"

namespace icl_core {
namespace crypt {

typedef Sha2<uint32_t,
             0xc1059ed8ul, 0x367cd507ul, 0x3070dd17ul, 0xf70e5939ul,
             0xffc00b31ul, 0x68581511ul, 0x64f98fa7ul, 0xbefa4fa4ul, 7> Sha224;
typedef Sha2<uint32_t,
             0x6a09e667ul, 0xbb67ae85ul, 0x3c6ef372ul, 0xa54ff53aul,
             0x510e527ful, 0x9b05688cul, 0x1f83d9abul, 0x5be0cd19ul, 8> Sha256;
typedef Sha2<uint64_t,
             0xcbbb9d5dc1059ed8ull, 0x629a292a367cd507ull, 0x9159015a3070dd17ull, 0x152fecd8f70e5939ull,
             0x67332667ffc00b31ull, 0x8eb44a8768581511ull, 0xdb0c2e0d64f98fa7ull, 0x47b5481dbefa4fa4ull, 6> Sha384;
typedef Sha2<uint64_t,
             0x6a09e667f3bcc908ull, 0xbb67ae8584caa73bull, 0x3c6ef372fe94f82bull, 0xa54ff53a5f1d36f1ull,
             0x510e527fade682d1ull, 0x9b05688c2b3e6c1full, 0x1f83d9abfb41bd6bull, 0x5be0cd19137e2179ull, 8> Sha512;

}
}

#endif