(Delphi DLL) Create a WinZip/7-Zip compatible AES Encrypted Zip

Creates a WinZip compatible AES-encrypted .zip archive

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Zip;

...

procedure TForm1.Button1Click(Sender: TObject);
var
zip: HCkZip;
success: Boolean;
recurse: Boolean;
success: Boolean;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

zip := CkZip_Create();

success := CkZip_NewZip(zip,'/myZipDir/aes.zip');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// Set properties to indicate that the Zip should be
// AES encrypted.

// A value of 4 indicates WinZip compatible AES encryption.
CkZip_putEncryption(zip,4);

// Key length can be 128, 192, or 256 bits.
CkZip_putEncryptKeyLength(zip,128);

// Set the password for AES encryption:
CkZip_putEncryptPassword(zip,'myPassword');

// Add a directory tree to be zipped.  (The files
// are not compressed at this point -- only references
// to the files and directories are added to the zip object.)
recurse := True;
success := CkZip_AppendFiles(zip,'c:/temp/a/*',recurse);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// Create the encrypted zip ("/myZipDir/aes.zip")
// The path of the zip is what was originally passed
// to the NewZip method (above).  
success := CkZip_WriteZipAndClose(zip);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

Memo1.Lines.Add('Created AES Encrypted Zip.');

CkZip_Dispose(zip);

end;