110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
#ifndef CRYPTOPP_DIAMOND_H
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#define CRYPTOPP_DIAMOND_H
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/** \file
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*/
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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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struct Diamond2_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 1, 256>, public VariableRounds<10>
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{
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static const char *StaticAlgorithmName() {return "Diamond2";}
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};
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/// <a href="http://www.weidai.com/scan-mirror/cs.html#Diamond2">Diamond2</a>
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class Diamond2 : public Diamond2_Info, public BlockCipherDocumentation
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{
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class Base : public BlockCipherBaseTemplate<Diamond2_Info>
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{
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public:
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void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
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protected:
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enum {ROUNDSIZE=4096};
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inline void substitute(int round, byte *x, const byte *y) const;
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int numrounds;
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SecByteBlock s; // Substitution boxes
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static inline void permute(byte *);
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static inline void ipermute(byte *);
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#ifdef DIAMOND_USE_PERMTABLE
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static const word32 permtable[9][256];
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static const word32 ipermtable[9][256];
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#endif
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};
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class 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 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 BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
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typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
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};
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typedef Diamond2::Encryption Diamond2Encryption;
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typedef Diamond2::Decryption Diamond2Decryption;
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struct Diamond2Lite_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 256>, public VariableRounds<8>
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{
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static const char *StaticAlgorithmName() {return "Diamond2Lite";}
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};
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/// <a href="http://www.weidai.com/scan-mirror/cs.html#Diamond2">Diamond2Lite</a>
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class Diamond2Lite : public Diamond2Lite_Info, public BlockCipherDocumentation
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{
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class Base : public BlockCipherBaseTemplate<Diamond2Lite_Info>
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{
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public:
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void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
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protected:
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enum {ROUNDSIZE=2048};
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inline void substitute(int round, byte *x, const byte *y) const;
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int numrounds;
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SecByteBlock s; // Substitution boxes
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static inline void permute(byte *);
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static inline void ipermute(byte *);
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#ifdef DIAMOND_USE_PERMTABLE
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static const word32 permtable[8][256];
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static const word32 ipermtable[8][256];
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#endif
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};
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class 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 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 BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
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typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
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};
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typedef Diamond2Lite::Encryption Diamond2LiteEncryption;
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typedef Diamond2Lite::Decryption Diamond2LiteDecryption;
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NAMESPACE_END
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#endif
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