sha256.h

/*
 Copyright (C) AC SOFTWARE SP. Z O.O.
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.
 This program 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 General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
 
#ifndef SRC_SUPLA_SHA256_H_
#define SRC_SUPLA_SHA256_H_
 
#include <stdint.h>
 
/*
 * Simple platform SHA256 wrapper without exposing platform-specific types.
 */
 
namespace Supla {
 
class Sha256 {
 public:
  Sha256();
  ~Sha256();
  void update(const uint8_t *data, const int size);
  void digest(uint8_t *output, int length = 32);
 
 protected:
#ifndef SUPLA_TEST
  void *ctx;
#else
  uint8_t state[32];
  uint32_t offset;
#endif
};
 
};  // namespace Supla
 
#endif  // SRC_SUPLA_SHA256_H_