AccesS密码的打击

 

type  TForm1 = class(TForm)    Button1: TButton;    Chk2000: TCheckBox;    Edit1: TEdit;    Button2: TButton;    Edit2: TEdit;    OpenDialog1: TOpenDialog;    Button3: TButton;    Label1: TLabel;    procedure Button1Click(Sender: TObject);    procedure Button2Click(Sender: TObject);    procedure Button3Click(Sender: TObject);    procedure Edit2KeyPress(Sender: TObject; var Key: Char);  private  procedure WMDropFiles(var Msssage: TMessage); message WM_DROPFILES ;    { Private declarations }  public    { Public declarations }  end;

var  Form1: TForm1;

implementation

{$R *.DFM}

CONST  xorString:array[0..12]of byte=    ( $86, $FB, $EC, $37,      $5D, $44, $9C, $FA,      $C6, $5E, $28, $E6,$13 );  xorString2:array[0..20]of byte=    ( $D3, $EC, $08, $9C,      $93, $28, $46, $8A,      $01, $7B, $A0, $DF,      $22, $13, $9A, $B1,      $61, $79, $C7, $7C,$5B);

procedure TForm1.WMDropFiles(var Msssage: TMessage);begin  ShowMessage('Hello Boy');end;procedure TForm1.Button1Click(Sender: TObject);

VARpassBuff: array[0..14]of byte;pass: array[0..14]of char;passBuff2: array[0..40]of byte;pass2: array[0..20]of char;B: Byte;F:TFileStream;I,j:integer;

begin  file://ShowMessage(Char($86)+ Char($F8)+Char($EC))  if not FileExists(Edit1.Text) then   begin     MessageBox(Handle,'你是MM呀','我好种意你呀',MB_OK + MB_ICONINFORMATION);     exit;   END;  F :=  TFileStream.Create(Edit1.text,fmOpenRead);  if not Chk2000.Checked then  begin    Try      F.Seek($42,soFromBeginning);      F.Read(PassBuff,14);      for i := 0 to 13 do      begin        B := PassBuff[i] XOR xorString[i];        Pass[i] := Char(B);      end;      pass[Sizeof(Pass)-1] := #0;      Edit2.Text := StrPas(Pass);      finally    f.Free;    end;  end  else  begin     try     F.Seek($42,soFromBeginning);     F.Read(passBuff2,40);     I:=0;j:=0;     while I<40 do     begin        B := passBuff2[i] xor xorString2[j];        pass2[j]:=char(B);        inc(i,2);inc(j);     end;    pass2[sizeof(pass2) - 1] := #0;    Edit2.Text:=StrPas(Pass2);   finally    f.Free;   end;   end;end;

procedure TForm1.Button2Click(Sender: TObject);begin  if OpenDialog1.Execute then    Edit1.text := OpenDialog1.FileName;end;

 

procedure TForm1.Button3Click(Sender: TObject);VARpassBuff: array[0..14]of byte;pass: array[0..14]of char;passBuff2: array[0..40]of byte;pass2: array[0..20]of char;B: Byte;F:TFileStream;I,j:integer;s: string;begin  file://ShowMessage(Char($86)+ Char($F8)+Char($EC))  if not FileExists(Edit1.Text) then   begin     MessageBox(Handle,'你是MM呀','我好种意你呀',MB_OK + MB_ICONINFORMATION);     exit;   END;  F :=  TFileStream.Create(Edit1.text,fmOpenWrite);  if not Chk2000.Checked then  begin    Try      FillChar(Pass,14,#0);      s := EdIt2.Text;      StrCopy(@Pass,Pchar(Trim(s)));      for i := 0 to 13 do      begin        B := Byte(Pass[i]);        PassBuff[i] := xorString[i] xor B;      end;      PassBuff[13] := $B6;      F.Seek($42,soFromBeginning);      F.Write(PassBuff,14);      finally    f.Free;    end;  end  else  begin     try     F.Seek($42,soFromBeginning);     F.Read(passBuff2,40);     I:=0;j:=0;     while I<40 do     begin        B := passBuff2[i] xor xorString2[j];        pass2[j]:=char(B);        inc(i,2);inc(j);     end;    pass2[sizeof(pass2) - 1] := #0;    Edit2.Text:=StrPas(Pass2);   finally    f.Free;   end;   end;

end;

procedure TForm1.Edit2KeyPress(Sender: TObject; var Key: Char);begin  file://if length(Edit1.text) >= 13 then Key := #0;end;

end.