Pascal (Lazarus/Delphi)

Validate a Smartcard PIN

See more Certificates Examples

Validates a smartcard PIN. This example only runs on Windows and requires Chilkat v9.5.0.77 or greater. 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;
  pinValid: Integer;

begin
  success := False;

  //  Note: Requires Chilkat v9.5.0.77 or greater.

  cert := TCert.Create;

  cert.SmartCardPin := '000000';

  //  Load the certificate on the smartcard currently in the reader (or on the USB token).
  //  Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
  //  See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
  success := cert.LoadFromSmartcard('');
  if (success <> True) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  //  Check to see if the SmartCardPin property contains the valid PIN for the smartcard.
  pinValid := cert.CheckSmartCardPin();
  if (pinValid < 0) then
    begin
      WriteLn('Unable to check the PIN validity.');
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  if (pinValid = 1) then
    begin
      WriteLn('PIN is valid.');
    end
  else
    begin
      WriteLn('PIN is invalid.');
    end;


  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.