Pascal (Lazarus/Delphi)

Find Certificate by Subject CN (Common Name)

See more Cert Store Examples

Demonstrates how to find a certificate having the specified subject CN.

Note: Requires Chilkat v10.1.2 or later.

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,
  Chilkat.CertStore,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  certStore: TCertStore;
  readOnly: Boolean;
  json: TJsonObject;
  cert: TCert;

begin
  success := False;

  certStore := TCertStore.Create;

  //  This opens the Current User certificate store on Windows,
  //  On MacOS and iOS it opens the default Keychain.
  readOnly := False;
  success := certStore.OpenCurrentUserStore(readOnly);
  if (success = False) then
    begin
      WriteLn(certStore.LastErrorText);
      Exit;
    end;

  //  Find the certificate having a Subject CN = "Example ABC".
  json := TJsonObject.Create;
  json.UpdateString('CN','Example ABC');

  cert := TCert.Create;
  success := certStore.FindCert(json,cert);
  if (success = True) then
    begin
      //  Show the full distinguished name of the certificate.
      WriteLn('Found: ' + cert.SubjectDN);
    end
  else
    begin
      WriteLn('Not found.');
    end;


  certStore.Free;
  json.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.