Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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// mars.h - originally written and placed in the public domain by Wei Dai
/// \file mars.h
/// \brief Classes for the MARS block cipher (IBM AES submission)
/// \since Crypto++ 3.0
#ifndef CRYPTOPP_MARS_H
#define CRYPTOPP_MARS_H
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
/// \brief MARS block cipher information
/// \since Crypto++ 3.0
struct MARS_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 56, 8>
{
CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "MARS";}
};
/// \brief MARS block cipher
/// \sa <a href="http://www.cryptopp.com/wiki/MARS">MARS</a>
/// \since Crypto++ 3.0
class MARS : public MARS_Info, public BlockCipherDocumentation
{
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<MARS_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
protected:
static const word32 Sbox[512];
FixedSizeSecBlock<word32, 40> m_k;
};
class CRYPTOPP_NO_VTABLE Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
class CRYPTOPP_NO_VTABLE Dec : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
public:
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
typedef MARS::Encryption MARSEncryption;
typedef MARS::Decryption MARSDecryption;
NAMESPACE_END
#endif