include/cryptopp/mars.h

0001 // mars.h - originally written and placed in the public domain by Wei Dai

0002
0003 /// \file mars.h

0004 /// \brief Classes for the MARS block cipher (IBM AES submission)

0005 /// \since Crypto++ 3.0

0006
0007 #ifndef CRYPTOPP_MARS_H
0008 #define CRYPTOPP_MARS_H
0009
0010 #include "seckey.h"
0011 #include "secblock.h"
0012
0013 NAMESPACE_BEGIN(CryptoPP)
0014
0015 /// \brief MARS block cipher information

0016 /// \since Crypto++ 3.0

0017 struct MARS_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 56, 8>
0018 {
0019     CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "MARS";}
0020 };
0021
0022 /// \brief MARS block cipher

0023 /// \sa <a href="http://www.cryptopp.com/wiki/MARS">MARS</a>

0024 /// \since Crypto++ 3.0

0025 class MARS : public MARS_Info, public BlockCipherDocumentation
0026 {
0027     class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<MARS_Info>
0028     {
0029     public:
0030         void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
0031
0032     protected:
0033         static const word32 Sbox[512];
0034
0035         FixedSizeSecBlock<word32, 40> m_k;
0036     };
0037
0038     class CRYPTOPP_NO_VTABLE Enc : public Base
0039     {
0040     public:
0041         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
0042     };
0043
0044     class CRYPTOPP_NO_VTABLE Dec : public Base
0045     {
0046     public:
0047         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
0048     };
0049
0050 public:
0051     typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
0052     typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
0053 };
0054
0055 typedef MARS::Encryption MARSEncryption;
0056 typedef MARS::Decryption MARSDecryption;
0057
0058 NAMESPACE_END
0059
0060 #endif