1 #ifndef _RIJNDAEL_H_
2 #define _RIJNDAEL_H_
3 
4 /**************************************************************************
5  * This code is based on Szymon Stefanek AES implementation:              *
6  * http://www.esat.kuleuven.ac.be/~rijmen/rijndael/rijndael-cpplib.tar.gz *
7  *                                                                        *
8  * Dynamic tables generation is based on the Brian Gladman's work:        *
9  * http://fp.gladman.plus.com/cryptography_technology/rijndael            *
10  **************************************************************************/
11 
12 #define _MAX_KEY_COLUMNS (256/32)
13 #define _MAX_ROUNDS      14
14 #define MAX_IV_SIZE      16
15 
16 class Rijndael
17 {
18   private:
19 #ifdef USE_SSE
20     void blockEncryptSSE(const byte *input,size_t numBlocks,byte *outBuffer);
21     void blockDecryptSSE(const byte *input, size_t numBlocks, byte *outBuffer);
22 
23     bool AES_NI;
24 #endif
25     void keySched(byte key[_MAX_KEY_COLUMNS][4]);
26     void keyEncToDec();
27     void GenerateTables();
28 
29     // RAR always uses CBC, but we may need to turn it off when calling
30     // this code from other archive formats with CTR and other modes.
31     bool     CBCMode;
32 
33     int      m_uRounds;
34     byte     m_initVector[MAX_IV_SIZE];
35     byte     m_expandedKey[_MAX_ROUNDS+1][4][4];
36   public:
37     Rijndael();
38     void Init(bool Encrypt,const byte *key,uint keyLen,const byte *initVector);
39     void blockEncrypt(const byte *input, size_t inputLen, byte *outBuffer);
40     void blockDecrypt(const byte *input, size_t inputLen, byte *outBuffer);
SetCBCMode(bool Mode)41     void SetCBCMode(bool Mode) {CBCMode=Mode;}
42 };
43 
44 #endif // _RIJNDAEL_H_
45