Pascal (Lazarus/Delphi)

Authenticode Sign using Smartcard or USB Token

See more Code Signing Examples

Demonstrates how to Authenticode sign an EXE or DLL using a smartcard or USB token, such as a Yubikey.

Note: Chilkat's code signing class was added in v9.5.0.97

Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.CodeSign,
  Chilkat.Cert,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  json: TJsonObject;
  cert: TCert;
  exePath: string;
  signer: TCodeSign;

begin
  success := False;

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

  //  First create the following JSON to specify that SHA256 is to be used,
  //  and provide timestamp server information.

  //  {
  //    "hashAlg": "sha256",
  //    "timestampToken": {
  //      "enabled": true,
  //      "tsaUrl": "http://timestamp.digicert.com",
  //      "requestTsaCert": true,
  //      "hashAlg": "sha256"
  //    }
  //  }

  json := TJsonObject.Create;
  json.UpdateString('hashAlg','sha256');
  json.UpdateBool('timestampToken.enabled',True);
  json.UpdateString('timestampToken.tsaUrl','http://timestamp.digicert.com');
  json.UpdateBool('timestampToken.requestTsaCert',True);
  json.UpdateString('timestampToken.hashAlg','sha256');

  //  The only difference in signing with a smartcard or USB token
  //  is that the cert is loaded from a smartcard or USB token, instead of a PFX or from elsewhere
  //  such as from the Windows certificate store.
  cert := TCert.Create;

  //  Yubico YubiKey OTP+FIDO+CCID 0, default PIN = 123456
  cert.SmartCardPin := '123456';

  //  Assuming you have the Yubikey inserted into the USB on the computer...
  //  and there is only 1 signing certificate on the Yubikey, then just load from
  //  the "smartcard".  (assuming you don't have additional smartcards or USB tokens plugged in)
  success := cert.LoadFromSmartcard('');
  if (success = False) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  //  If the smartcard/token has several possible certificates that can be used for signing,
  //  then see the online documentation for the LoadFromSmartcard method,
  //  and also see the online documentation and examples for Chilkat Pkcs11 and ScMinidriver.
  //  There are many possible ways to load a Chilkat certificate object with a cert (and associated private key)
  //  from a variety of sources.  The only coding difference for any signing function in Chilkat,
  //  whether it be a PDF, XmlDSig, CMS, etc. is in how the cert is loaded.

  //  You can sign .exe or .dll files.
  exePath := 'C:/someOtherDir/HelloWorld.exe';

  signer := TCodeSign.Create;

  //  If successful, the following call will apply the signature to the EXE (or DLL).
  success := signer.AddSignature(exePath,cert,json);
  if (success = False) then
    begin
      WriteLn(signer.LastErrorText);
      Exit;
    end;

  WriteLn('Successfully applied the Authenticode signature.');


  json.Free;
  cert.Free;
  signer.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.