Initial community commit

Src/external_dependencies/openmpt-trunk/include/unrar/rijndael.hpp

@@ -0,0 +1,40 @@
+#ifndef _RIJNDAEL_H_
+#define _RIJNDAEL_H_
+
+/**************************************************************************
+ * This code is based on Szymon Stefanek public domain AES implementation *
+ **************************************************************************/
+
+#define _MAX_KEY_COLUMNS (256/32)
+#define _MAX_ROUNDS      14
+#define MAX_IV_SIZE      16
+
+class Rijndael
+{ 
+  private:
+#ifdef USE_SSE
+    void blockEncryptSSE(const byte *input,size_t numBlocks,byte *outBuffer);
+    void blockDecryptSSE(const byte *input, size_t numBlocks, byte *outBuffer);
+
+    bool AES_NI;
+#endif
+    void keySched(byte key[_MAX_KEY_COLUMNS][4]);
+    void keyEncToDec();
+    void GenerateTables();
+
+    // RAR always uses CBC, but we may need to turn it off when calling
+    // this code from other archive formats with CTR and other modes.
+    bool     CBCMode;
+    
+    int      m_uRounds;
+    byte     m_initVector[MAX_IV_SIZE];
+    byte     m_expandedKey[_MAX_ROUNDS+1][4][4];
+  public:
+    Rijndael();
+    void Init(bool Encrypt,const byte *key,uint keyLen,const byte *initVector);
+    void blockEncrypt(const byte *input, size_t inputLen, byte *outBuffer);
+    void blockDecrypt(const byte *input, size_t inputLen, byte *outBuffer);
+    void SetCBCMode(bool Mode) {CBCMode=Mode;}
+};
+  
+#endif // _RIJNDAEL_H_