67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
// shacal.h - originally written and placed in the public domain by Wei Dai
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/// \file shacal2.h
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/// \brief Classes for the SHACAL-2 block cipher
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/// \since Crypto++ 5.2, Intel SHA since Crypto++ 6.0
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#ifndef CRYPTOPP_SHACAL2_H
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#define CRYPTOPP_SHACAL2_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 SHACAL2 block cipher information
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struct SHACAL2_Info : public FixedBlockSize<32>, public VariableKeyLength<16, 16, 64>
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{
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CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "SHACAL-2";}
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};
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/// \brief SHACAL2 block cipher
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/// \since Crypto++ 5.2, Intel SHA since Crypto++ 6.0
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/// \sa <a href="http://www.cryptopp.com/wiki/SHACAL-2">SHACAL-2</a>
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class SHACAL2 : public SHACAL2_Info, public BlockCipherDocumentation
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{
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/// \brief SHACAL2 block cipher transformation functions
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/// \details Provides implementation common to encryption and decryption
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class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SHACAL2_Info>
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{
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public:
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std::string AlgorithmProvider() const;
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void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
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protected:
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FixedSizeAlignedSecBlock<word32, 64> m_key;
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static const word32 K[64];
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};
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/// \brief SHACAL2 block cipher transformation functions
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/// \details Encryption transformation
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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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};
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/// \brief SHACAL2 block cipher transformation functions
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/// \details Decryption transformation
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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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};
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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 SHACAL2::Encryption SHACAL2Encryption;
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typedef SHACAL2::Decryption SHACAL2Decryption;
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NAMESPACE_END
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#endif
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