123. Whoever by any act, or by illegal omission, conceals or attempts to conceal the existence of a design to wage war against the Yang di-Pertuan Agong or any of the Rulers or the Yang di-Pertua Negeri, intending by such concealment or attempted concealment to facilitate, or knowing it to be likely that such concealment or attempted concealment will facilitate, the waging of such war, shall be punished with imprisonment for a term which may extend to ten years, and shall also be liable to fine.