text: /*
   * Copyright (C) 2017 Southern Storm Software, Pty Ltd.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included
   * in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #ifndef CRYPTO_MANTIS8_h
  #define CRYPTO_MANTIS8_h
  
  #include "BlockCipher.h"
  
  class Mantis8 : public BlockCipher
  {
  public:
      Mantis8();
      virtual ~Mantis8();
  
      size_t blockSize() const;
      size_t keySize() const;
  
      bool setKey(const uint8_t *key, size_t len);
      bool setTweak(const uint8_t *tweak, size_t len);
  
      void swapModes();
  
      void encryptBlock(uint8_t *output, const uint8_t *input);
      void decryptBlock(uint8_t *output, const uint8_t *input);
  
      void clear();
  
  private:
      struct {
          uint32_t k0[2];
          uint32_t k0prime[2];
          uint32_t k1[2];
          uint32_t tweak[2];
      } st;
  };
  
  #endif
  