// camellia.h - originally written and placed in the public domain by Wei Dai

/// \file camellia.h

/// \brief Classes for the Camellia block cipher

#ifndef CRYPTOPP_CAMELLIA_H

#define CRYPTOPP_CAMELLIA_H

#include "config.h"

#include "seckey.h"

#include "secblock.h"

NAMESPACE_BEGIN(CryptoPP)

/// \brief Camellia block cipher information

struct Camellia_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>

{

  CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Camellia";}

};

/// \brief Camellia block cipher

/// \sa <a href="http://www.cryptopp.com/wiki/Camellia">Camellia</a>

class Camellia : public Camellia_Info, public BlockCipherDocumentation

{

  class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Camellia_Info>

  {

  public:

    void UncheckedSetKey(const byte *key, unsigned int keylen, const NameValuePairs &params);

    void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;

  protected:

    CRYPTOPP_ALIGN_DATA(4) static const byte s1[256];

    static const word32 SP[4][256];

    unsigned int m_rounds;

    SecBlock<word32> m_key;

  };

public:

  typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;

  typedef BlockCipherFinal<DECRYPTION, Base> Decryption;

};

typedef Camellia::Encryption CamelliaEncryption;

typedef Camellia::Decryption CamelliaDecryption;

NAMESPACE_END

#endif