/*

* 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>

BOTAN_FUTURE_INTERNAL_HEADER(idea.h)

namespace Botan {

/**

* IDEA

*/

class BOTAN_PUBLIC_API(2,0) 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"; }

      BlockCipher* clone() const override { return new IDEA; }

      size_t parallelism() const override;

   private:

#if defined(BOTAN_HAS_IDEA_SSE2)

      void sse2_idea_op_8(const uint8_t in[64], uint8_t out[64], const uint16_t EK[52]) const;

#endif

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

      secure_vector<uint16_t> m_EK, m_DK;

   };

}

#endif