Pascal (Lazarus/Delphi)

Load Base64-encoded X.509 Certificate (.cer)

See more Certificates Examples

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert. 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;

  //  LoadFromFile will load virtually any certificate format file.
  //  It will auto-recognize the format and load appropiately.
  //  A base64-encoded DER X.509 certificate file
  //  contains the binary DER in base64 encoded form.
  //  Therefore, it is a text file that will begin like this:
  //  -----BEGIN CERTIFICATE-----
  //  MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
  //  EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
  //  ...

  success := cert.LoadFromFile('/Users/chilkat/testData/cer/chilkat_base64.cer');
  if (success <> True) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  //  DN = "Distinguished Name"
  WriteLn('SubjectDN:' + cert.SubjectDN);

  WriteLn('Common Name:' + cert.SubjectCN);
  WriteLn('Issuer Common Name:' + cert.IssuerCN);

  WriteLn('Serial Number:' + 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.