Pascal (Lazarus/Delphi)

Load Default Certificate from Smart Card or Token

See more Certificates Examples

Chilkat contains internal logic to examine a connected smart card or USB token, and will make decisions based on make/model to successfully interact with the hardware. When faced with a new smartcard or token, the best starting point is to call LoadFromSmartcard with an empty string argument to see what Chilkat discovers. 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.Cert;

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

procedure RunDemo;
var
  success: Boolean;
  cert: TCert;

begin
  success := False;

  cert := TCert.Create;

  //  If you know the smart card PIN, it's good to set it prior to loading from the smartcard/USB token.
  cert.SmartCardPin := '12345678';

  //  To let Chilkat discover what smartcard or token is connected, pass an empty string to LoadFromSmartcard.
  //  When testing in this way, it's best to have only a single smartcard or token connected to the system.
  success := cert.LoadFromSmartcard('');
  if (success = False) then
    begin
      WriteLn(cert.LastErrorText);
      WriteLn('Certificate not loaded.');
      Exit;
    end;

  //  The LastErrorText property on all Chilkat objects will contain 
  //  information even when the method call is successful.
  //  You can examine the LastErrorText to see what Chilkat found and
  //  what decisions were made.
  //  
  //  For example, if a certificate was successfully loaded via LoadFromSmartcard,
  //  but then signing failed, such as w/ Pdf, XmlDSig, CAdES, etc.,
  //  then we would want to examine the LastErrorText from the call to
  //  LoadFromSmartcard to get detailed information about the card.
  WriteLn(cert.LastErrorText);

  WriteLn('Found: ' + cert.SubjectDN + ' serial=' + cert.SerialNumber);


  cert.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.