00001 #ifndef CRYPTOPP_RC5_H
00002 #define CRYPTOPP_RC5_H
00003
00004
00005
00006
00007 #include "seckey.h"
00008 #include "secblock.h"
00009
00010 NAMESPACE_BEGIN(CryptoPP)
00011
00012 struct RC5_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 0, 255>, public VariableRounds<16>
00013 {
00014 static const char *StaticAlgorithmName() {return "RC5";}
00015 typedef word32 RC5_WORD;
00016 };
00017
00018
00019 class RC5 : public RC5_Info, public BlockCipherDocumentation
00020 {
00021 class Base : public BlockCipherBaseTemplate<RC5_Info>
00022 {
00023 public:
00024 void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
00025
00026 protected:
00027 unsigned int r;
00028 SecBlock<RC5_WORD> sTable;
00029 };
00030
00031 class Enc : public Base
00032 {
00033 public:
00034 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00035 };
00036
00037 class Dec : public Base
00038 {
00039 public:
00040 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00041 };
00042
00043 public:
00044 typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
00045 typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
00046 };
00047
00048 typedef RC5::Encryption RC5Encryption;
00049 typedef RC5::Decryption RC5Decryption;
00050
00051 NAMESPACE_END
00052
00053 #endif