Enumerate Private Keys in a PFX

See more PFX/P12 Examples

Demonstrates Pfx.PrivateKeyAt, which copies the private key at a zero-based index into a PrivateKey object. The example enumerates all private keys in the PFX.

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.PrivateKey,
  Chilkat.Pfx;

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

procedure RunDemo;
var
  success: Boolean;
  pfx: TPfx;
  password: string;
  numKeys: Integer;
  privKey: TPrivateKey;
  i: Integer;

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;

  //  Enumerate the private keys in the PFX by zero-based index.  Valid indexes are less than
  //  NumPrivateKeys.
  numKeys := pfx.NumPrivateKeys;
  privKey := TPrivateKey.Create;

  for i := 0 to numKeys - 1 do
    begin
      success := pfx.PrivateKeyAt(i,privKey);
      if (success = False) then
        begin
          WriteLn(pfx.LastErrorText);
          Exit;
        end;
      WriteLn('Private key ' + i + ': ' + privKey.KeyType + ' (' + privKey.BitLength + ' bits)');
    end;



  pfx.Free;
  privKey.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.