unit untMain;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,Base64,MD5Unit,DESCrypt,ZnCRC, StdCtrls;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Label1: TLabel;
    Button1: TButton;
    Button2: TButton;
    Label2: TLabel;
    Edit2: TEdit;
    Button3: TButton;
    Button4: TButton;
    Label3: TLabel;
    Edit3: TEdit;
    Button5: TButton;
    Button6: TButton;
    Label4: TLabel;
    Edit4: TEdit;
    Button7: TButton;
    Button8: TButton;
    Edit5: TEdit;
    Label5: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure Button7Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  Edit1.Text:=StrToBase64(Edit1.Text);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  Edit1.Text:=Base64ToStr(Edit1.Text);
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  Edit2.Text:=transfer(Edit2.Text);
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
  Edit3.Text:=EnCrypt(Edit3.Text,Edit5.Text);
end;

procedure TForm1.Button6Click(Sender: TObject);
begin
  Edit3.Text:=DeCrypt(Edit3.Text,Edit5.Text);
end;

procedure TForm1.Button7Click(Sender: TObject);
var
  bf:array [0..MAX_PATH] of Char;
begin
  StrPCopy(bf,Edit4.Text);
  Edit4.Text:=IntToStr(CRC32Of(bf,length(Edit4.Text)));
end;

end.