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50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
#ifndef _RIJNDAEL_H_
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#define _RIJNDAEL_H_
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/**************************************************************************
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* This code is based on Szymon Stefanek AES implementation: *
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* http://www.esat.kuleuven.ac.be/~rijmen/rijndael/rijndael-cpplib.tar.gz *
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* *
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* Dynamic tables generation is based on the Brian Gladman's work: *
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* http://fp.gladman.plus.com/cryptography_technology/rijndael *
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**************************************************************************/
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#define _MAX_KEY_COLUMNS (256/32)
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#define _MAX_ROUNDS 14
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#define MAX_IV_SIZE 16
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class Rijndael
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{
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private:
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#ifdef USE_SSE
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void blockEncryptSSE(const byte *input,size_t numBlocks,byte *outBuffer);
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void blockDecryptSSE(const byte *input, size_t numBlocks, byte *outBuffer);
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bool AES_NI;
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#endif
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void keySched(byte key[_MAX_KEY_COLUMNS][4]);
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void keyEncToDec();
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void GenerateTables();
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// RAR always uses CBC, but we may need to turn it off when calling
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// this code from other archive formats with CTR and other modes.
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bool CBCMode;
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int m_uRounds;
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byte m_initVector[MAX_IV_SIZE];
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byte m_expandedKey[_MAX_ROUNDS+1][4][4];
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byte S[256],S5[256],rcon[30];
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byte T1[256][4],T2[256][4],T3[256][4],T4[256][4];
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byte T5[256][4],T6[256][4],T7[256][4],T8[256][4];
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byte U1[256][4],U2[256][4],U3[256][4],U4[256][4];
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public:
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Rijndael();
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void Init(bool Encrypt,const byte *key,uint keyLen,const byte *initVector);
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void blockEncrypt(const byte *input, size_t inputLen, byte *outBuffer);
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void blockDecrypt(const byte *input, size_t inputLen, byte *outBuffer);
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void SetCBCMode(bool Mode) {CBCMode=Mode;}
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};
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#endif // _RIJNDAEL_H_
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