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Diffstat (limited to '')
| -rw-r--r-- | CryptoPP/twofish.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/CryptoPP/twofish.h b/CryptoPP/twofish.h new file mode 100644 index 000000000..9ba2903bd --- /dev/null +++ b/CryptoPP/twofish.h @@ -0,0 +1,59 @@ +#ifndef CRYPTOPP_TWOFISH_H +#define CRYPTOPP_TWOFISH_H + +/** \file +*/ + +#include "seckey.h" +#include "secblock.h" + +NAMESPACE_BEGIN(CryptoPP) + +//! _ +struct Twofish_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 32>, FixedRounds<16> +{ + static const char *StaticAlgorithmName() {return "Twofish";} +}; + +/// <a href="http://www.weidai.com/scan-mirror/cs.html#Twofish">Twofish</a> +class Twofish : public Twofish_Info, public BlockCipherDocumentation +{ + class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Twofish_Info> + { + public: + void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms); + + protected: + static word32 h0(word32 x, const word32 *key, unsigned int kLen); + static word32 h(word32 x, const word32 *key, unsigned int kLen); + + static const byte q[2][256]; + static const word32 mds[4][256]; + + FixedSizeSecBlock<word32, 40> m_k; + FixedSizeSecBlock<word32, 4*256> m_s; + }; + + 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 Twofish::Encryption TwofishEncryption; +typedef Twofish::Decryption TwofishDecryption; + +NAMESPACE_END + +#endif |