implementation
{$R *.dfm}
const
XorKey: array[0..7] of Byte = ($B2, $09, $BB, $55, $93, $6D, $44, $47); //字符串加密用
function Enc(Str: string): string; //字符加密函數 這是用的一個異或加密
var
i, j: Integer;
begin
Result := '';
j := 0;
for i := 1 to Length(Str) do
begin
Result := Result + IntToHex(Byte(Str[i]) xor XorKey[j], 2);
j := (j + 1) mod 8;
end;
end;
function Dec(Str: string): string; //字符解密函數
var
i, j: Integer;
begin
Result := '';
j := 0;
for i := 1 to Length(Str) div 2 do
begin
Result := Result + Char(StrToInt('$' + Copy(Str, i * 2 - 1, 2)) xor XorKey[j]);
j := (j + 1) mod 8;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
Edit2.Text:=Enc((Edit1.text));
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
Edit3.Text:=Dec((Edit2.text));
end;
end.