/*

* IDEA

* (C) 1999-2007 Jack Lloyd

*

* Botan is released under the Simplified BSD License (see license.txt)

*/

#ifndef BOTAN_IDEA_H_

#define BOTAN_IDEA_H_

#include <botan/block_cipher.h>

namespace Botan {

/**

* IDEA

*/

class IDEA final : public Block_Cipher_Fixed_Params<8, 16>

   {

   public:

      void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;

      void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;

      void clear() override;

      std::string provider() const override;

      std::string name() const override { return "IDEA"; }

      std::unique_ptr<BlockCipher> new_object() const override { return std::make_unique<IDEA>(); }

      size_t parallelism() const override;

   private:

#if defined(BOTAN_HAS_IDEA_SSE2)

      static void sse2_idea_op_8(const uint8_t in[64],

                                 uint8_t out[64],

                                 const uint16_t EK[52]);

#endif

      void key_schedule(const uint8_t[], size_t) override;

      secure_vector<uint16_t> m_EK, m_DK;

   };

}

#endif