/*

* Noekeon

* (C) 1999-2008 Jack Lloyd

*

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

*/

#ifndef BOTAN_NOEKEON_H_

#define BOTAN_NOEKEON_H_

#include <botan/block_cipher.h>

#include <botan/secmem.h>

namespace Botan {

/**

* Noekeon

*/

class Noekeon final : public Block_Cipher_Fixed_Params<16, 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;

      std::string provider() const override;

      void clear() override;

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

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

      size_t parallelism() const override;

      bool has_keying_material() const override;

   private:

#if defined(BOTAN_HAS_NOEKEON_SIMD)

      void simd_encrypt_4(const uint8_t in[], uint8_t out[]) const;

      void simd_decrypt_4(const uint8_t in[], uint8_t out[]) const;

#endif

      /**

      * The Noekeon round constants

      */

      static const uint8_t RC[17];

      void key_schedule(std::span<const uint8_t> key) override;

      secure_vector<uint32_t> m_EK, m_DK;

};

}  // namespace Botan

#endif