78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
// shark.h - originally written and placed in the public domain by Wei Dai
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/// \file shark.h
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/// \brief Classes for the SHARK block cipher
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/// \since Crypto++ 2.1
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#ifndef CRYPTOPP_SHARK_H
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#define CRYPTOPP_SHARK_H
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#include "config.h"
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#include "seckey.h"
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#include "secblock.h"
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NAMESPACE_BEGIN(CryptoPP)
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/// \brief SHARK block cipher information
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/// \since Crypto++ 2.1
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struct SHARK_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public VariableRounds<6, 2>
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{
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CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "SHARK-E";}
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};
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/// \brief SHARK block cipher
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/// <a href="http://www.cryptopp.com/wiki/SHARK-E">SHARK-E</a>
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/// \since Crypto++ 2.1
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class SHARK : public SHARK_Info, public BlockCipherDocumentation
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{
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/// \brief SHARK block cipher default operation
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/// \since Crypto++ 2.1
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class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SHARK_Info>
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{
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public:
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void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶m);
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protected:
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unsigned int m_rounds;
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SecBlock<word64> m_roundKeys;
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};
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/// \brief SHARK block cipher encryption operation
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/// \since Crypto++ 2.1
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class CRYPTOPP_NO_VTABLE Enc : public Base
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{
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public:
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void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
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// used by Base to do key setup
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void InitForKeySetup();
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private:
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static const byte sbox[256];
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static const word64 cbox[8][256];
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};
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/// \brief SHARK block cipher decryption operation
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/// \since Crypto++ 2.1
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class CRYPTOPP_NO_VTABLE Dec : public Base
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{
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public:
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void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
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private:
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static const byte sbox[256];
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static const word64 cbox[8][256];
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};
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public:
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typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
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typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
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};
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typedef SHARK::Encryption SHARKEncryption;
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typedef SHARK::Decryption SHARKDecryption;
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NAMESPACE_END
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#endif
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