idea.h

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/*
* 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;
      bool has_keying_material() 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