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# VobDec.h

    00001 #pragma once
    00002
    00003 class CVobDec
    00004 {
    00005         int m_lfsr0, m_lfsr1;
    00006
    00007         void ClockLfsr0Forward(int& lfsr0);
    00008         void ClockLfsr1Forward(int& lfsr1);
    00009         void ClockBackward(int& lfsr0, int& lfsr1);
    00010         void Salt(const BYTE salt[5], int& lfsr0, int& lfsr1);
    00011         int FindLfsr(const BYTE* crypt, int offset, const BYTE* plain);
    00012
    00013 public:
    00014         CVobDec();
    00015         virtual ~CVobDec();
    00016
    00017         bool m_fFoundKey;
    00018
    00019         bool FindKey(BYTE* buff);
    00020         void Decrypt(BYTE* buff);
    00021 };