1#ifndef CRYPTOPP_RC5_H 2#define CRYPTOPP_RC5_H 3 4/** \file 5*/ 6 7#include "seckey.h" 8#include "secblock.h" 9 10NAMESPACE_BEGIN(CryptoPP) 11 12//! _ 13struct RC5_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 0, 255>, public VariableRounds<16> 14{ 15 static const char *StaticAlgorithmName() {return "RC5";} 16 typedef word32 RC5_WORD; 17}; 18 19/// <a href="http://www.weidai.com/scan-mirror/cs.html#RC5">RC5</a> 20class RC5 : public RC5_Info, public BlockCipherDocumentation 21{ 22 class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<RC5_Info> 23 { 24 public: 25 void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms); 26 27 protected: 28 unsigned int r; // number of rounds 29 SecBlock<RC5_WORD> sTable; // expanded key table 30 }; 31 32 class CRYPTOPP_NO_VTABLE Enc : public Base 33 { 34 public: 35 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; 36 }; 37 38 class CRYPTOPP_NO_VTABLE Dec : public Base 39 { 40 public: 41 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; 42 }; 43 44public: 45 typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption; 46 typedef BlockCipherFinal<DECRYPTION, Dec> Decryption; 47}; 48 49typedef RC5::Encryption RC5Encryption; 50typedef RC5::Decryption RC5Decryption; 51 52NAMESPACE_END 53 54#endif 55