Find a PFX Certificate by localKeyId

See more PFX/P12 Examples

Demonstrates Pfx.CertByLocalKeyId, which searches for a certificate whose certificate-bag localKeyId attribute matches a given value and copies it into a Cert object.

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.Cert,
  Chilkat.Pfx;

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

procedure RunDemo;
var
  success: Boolean;
  pfx: TPfx;
  password: string;
  cert: TCert;

begin
  success := False;

  pfx := TPfx.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 PFX password should come from a secure source rather than being hard-coded.
  password := 'myPfxPassword';
  success := pfx.LoadPfxFile('qa_data/identity.pfx',password);
  if (success = False) then
    begin
      WriteLn(pfx.LastErrorText);
      Exit;
    end;

  //  Find a certificate whose certificate-bag localKeyId attribute matches the given value.  The 2nd
  //  argument names the binary representation of the id, such as decimal, base64, or hex.
  cert := TCert.Create;
  success := pfx.CertByLocalKeyId('01','hex',cert);
  if (success = False) then
    begin
      WriteLn(pfx.LastErrorText);
      Exit;
    end;
  WriteLn('Found certificate: ' + cert.SubjectCN);


  pfx.Free;
  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.