欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  数据库

AccesS密码的打击

程序员文章站 2023-12-27 17:45:15
...

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(Send

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);


VAR
passBuff: 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   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);
VAR
passBuff: 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   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.

上一篇:

下一篇: