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author | weidai <weidai11@users.noreply.github.com> | 2002-10-04 17:31:41 +0000 |
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committer | weidai <weidai11@users.noreply.github.com> | 2002-10-04 17:31:41 +0000 |
commit | a3b6ece7ab341b5b14135baeccea7d5e4c086771 (patch) | |
tree | 8b045309c238226c32a563b1df6b9c30a2f0e0b3 /rc5.h | |
download | cryptopp-git-a3b6ece7ab341b5b14135baeccea7d5e4c086771.tar.gz |
Initial revision
Diffstat (limited to 'rc5.h')
-rw-r--r-- | rc5.h | 53 |
1 files changed, 53 insertions, 0 deletions
@@ -0,0 +1,53 @@ +#ifndef CRYPTOPP_RC5_H +#define CRYPTOPP_RC5_H + +/** \file +*/ + +#include "seckey.h" +#include "secblock.h" + +NAMESPACE_BEGIN(CryptoPP) + +struct RC5_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 0, 255>, public VariableRounds<16> +{ + static const char *StaticAlgorithmName() {return "RC5";} + typedef word32 RC5_WORD; +}; + +/// <a href="http://www.weidai.com/scan-mirror/cs.html#RC5">RC5</a> +class RC5 : public RC5_Info, public BlockCipherDocumentation +{ + class Base : public BlockCipherBaseTemplate<RC5_Info> + { + public: + void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds); + + protected: + unsigned int r; // number of rounds + SecBlock<RC5_WORD> sTable; // expanded key table + }; + + class Enc : public Base + { + public: + void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; + }; + + class Dec : public Base + { + public: + void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; + }; + +public: + typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption; + typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption; +}; + +typedef RC5::Encryption RC5Encryption; +typedef RC5::Decryption RC5Decryption; + +NAMESPACE_END + +#endif |