It can and has already happened. You can make your own root ca. Internal domains need internal root cas. Is it a pia to setup yes. Do I have it installed on my unrooted android phone and linux computers? Yes.
Edit: I didn’t see the dhcp part. But you can still make your own root ca
It can and has already happened. You can make your own root ca. Internal domains need internal root cas. Is it a pia to setup yes. Do I have it installed on my unrooted android phone and linux computers? Yes.
Edit: I didn’t see the dhcp part. But you can still make your own root ca
op was obviously referring to public root CAs