~zooko/cryptopp/trunk

#ifndef CRYPTOPP_WAKE_H

#define CRYPTOPP_WAKE_H

#include "seckey.h"

#include "secblock.h"

#include "strciphr.h"

NAMESPACE_BEGIN(CryptoPP)

//! _

template <class B = BigEndian>

struct WAKE_CFB_Info : public FixedKeyLength<32>

{

	static const char *StaticAlgorithmName() {return B::ToEnum() == LITTLE_ENDIAN_ORDER ? "WAKE-CFB-LE" : "WAKE-CFB-BE";}

};

//! _

template <class B = BigEndian>

struct WAKE_OFB_Info : public FixedKeyLength<32>

{

	static const char *StaticAlgorithmName() {return B::ToEnum() == LITTLE_ENDIAN_ORDER ? "WAKE-OFB-LE" : "WAKE-OFB-BE";}

};

class CRYPTOPP_NO_VTABLE WAKE_Base

{

protected:

	word32 M(word32 x, word32 y);

	void GenKey(word32 k0, word32 k1, word32 k2, word32 k3);

	word32 t[257];

	word32 r3, r4, r5, r6;

};

template <class B = BigEndian>

class CRYPTOPP_NO_VTABLE WAKE_Policy

				: public CFB_CipherConcretePolicy<word32, 1>

				, public AdditiveCipherConcretePolicy<word32, 1, 64>

				, protected WAKE_Base

{

protected:

	void CipherSetKey(const NameValuePairs &params, const byte *key, size_t length);

	// CFB

	byte * GetRegisterBegin() {return (byte *)&r6;}

	void Iterate(byte *output, const byte *input, CipherDir dir, size_t iterationCount);

	// OFB

	void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);

	bool IsRandomAccess() const {return false;}

};

namespace Weak {

//! <a href="http://www.cryptolounge.org/wiki/WAKE">WAKE-CFB-BE</a>

template <class B = BigEndian>

struct WAKE_CFB : public WAKE_CFB_Info<B>, public SymmetricCipherDocumentation

{

	typedef SymmetricCipherFinal<ConcretePolicyHolder<WAKE_Policy<B>, CFB_EncryptionTemplate<> >,  WAKE_CFB_Info<B> > Encryption;

	typedef SymmetricCipherFinal<ConcretePolicyHolder<WAKE_Policy<B>, CFB_DecryptionTemplate<> >,  WAKE_CFB_Info<B> > Decryption;

};

}

//! WAKE-OFB

template <class B = BigEndian>

struct WAKE_OFB : public WAKE_OFB_Info<B>, public SymmetricCipherDocumentation

{

	typedef SymmetricCipherFinal<ConcretePolicyHolder<WAKE_Policy<B>, AdditiveCipherTemplate<> >,  WAKE_OFB_Info<B> > Encryption;

	typedef Encryption Decryption;

};

/*

template <class B = BigEndian>

class WAKE_ROFB_Policy : public WAKE_Policy<B>

{

protected:

	void Iterate(KeystreamOperation operation, byte *output, const byte *input, unsigned int iterationCount);

};

template <class B = BigEndian>

struct WAKE_ROFB : public WAKE_Info<B>

{

	typedef SymmetricCipherTemplate<ConcretePolicyHolder<AdditiveCipherTemplate<>, WAKE_ROFB_Policy<B> > > Encryption;

	typedef Encryption Decryption;

};

*/

NAMESPACE_END

#endif