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56 lines
1.4 KiB
56 lines
1.4 KiB
// rc5.h - written and placed in the public domain by Wei Dai |
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//! \file rc5.h |
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//! \brief Classes for the RC5 block cipher |
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#ifndef CRYPTOPP_RC5_H |
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#define CRYPTOPP_RC5_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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//! _ |
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struct RC5_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 0, 255>, public VariableRounds<16> |
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{ |
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static const char *StaticAlgorithmName() {return "RC5";} |
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typedef word32 RC5_WORD; |
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}; |
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/// <a href="http://www.weidai.com/scan-mirror/cs.html#RC5">RC5</a> |
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class RC5 : public RC5_Info, public BlockCipherDocumentation |
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{ |
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class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<RC5_Info> |
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{ |
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public: |
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void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms); |
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protected: |
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unsigned int r; // number of rounds |
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SecBlock<RC5_WORD> sTable; // expanded key table |
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}; |
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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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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 RC5::Encryption RC5Encryption; |
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typedef RC5::Decryption RC5Decryption; |
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NAMESPACE_END |
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#endif
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