Set a TLS Client Certificate from a PEM

See more Socket/SSL/TLS Examples

Demonstrates Socket.SetSslClientCertPem, which loads and configures a TLS client certificate and private key from PEM data or a PEM file.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

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.Socket;

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

procedure RunDemo;
var
  success: Boolean;
  socket: TSocket;
  pemPassword: string;
  bTls: Boolean;
  maxWaitMs: Integer;

begin
  success := False;

  socket := TSocket.Create;

  //  The file path is relative to the application's current working directory.  An absolute path
  //  may also be used.  Supply the path appropriate to your own environment.
  //  The PEM password should come from a secure source rather than being hard-coded.
  pemPassword := 'myPemPassword';

  //  Load and configure the TLS client certificate and private key from a PEM file.  Configure the
  //  client certificate before connecting.
  success := socket.SetSslClientCertPem('qa_data/client.pem',pemPassword);
  if (success = False) then
    begin
      WriteLn(socket.LastErrorText);
      Exit;
    end;

  bTls := True;
  maxWaitMs := 5000;
  success := socket.Connect('example.com',5000,bTls,maxWaitMs);
  if (success = False) then
    begin
      WriteLn(socket.LastErrorText);
      Exit;
    end;
  WriteLn('Connected with mutual TLS.');


  socket.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.