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54 lines
1.7 KiB
54 lines
1.7 KiB
// blowfish.h - originally written and placed in the public domain by Wei Dai |
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/// \file blowfish.h |
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/// \brief Classes for the Blowfish block cipher |
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#ifndef CRYPTOPP_BLOWFISH_H |
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#define CRYPTOPP_BLOWFISH_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 Blowfish block cipher information |
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struct Blowfish_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 4, 56>, public FixedRounds<16> |
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{ |
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CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Blowfish";} |
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}; |
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// <a href="http://www.cryptopp.com/wiki/Blowfish">Blowfish</a> |
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/// \brief Blowfish block cipher |
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/// \since Crypto++ 1.0 |
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class Blowfish : public Blowfish_Info, public BlockCipherDocumentation |
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{ |
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/// \brief Class specific implementation and overrides used to operate the cipher. |
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/// \details Implementations and overrides in \p Base apply to both \p ENCRYPTION and \p DECRYPTION directions |
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class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Blowfish_Info> |
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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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void UncheckedSetKey(const byte *key_string, unsigned int keylength, const NameValuePairs ¶ms); |
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private: |
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void crypt_block(const word32 in[2], word32 out[2]) const; |
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static const word32 p_init[ROUNDS+2]; |
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static const word32 s_init[4*256]; |
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FixedSizeSecBlock<word32, ROUNDS+2> pbox; |
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FixedSizeSecBlock<word32, 4*256> sbox; |
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}; |
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public: |
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typedef BlockCipherFinal<ENCRYPTION, Base> Encryption; |
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typedef BlockCipherFinal<DECRYPTION, Base> Decryption; |
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}; |
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typedef Blowfish::Encryption BlowfishEncryption; |
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typedef Blowfish::Decryption BlowfishDecryption; |
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NAMESPACE_END |
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#endif
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