I hate the implications of such a system, but perhaps an encryption system could be developed such that both the sender and receiver are verifiable in any one m

I hate the implications of such a system, but perhaps an encryption system could be developed such that both the sender and receiver are verifiable in any one message based on their public key but the message remains encrypted. Then only ham licensees are granted valid certificates. I don't think encryption should be allowed on most ham bands, but I was trying to come up with a solution(while making all sorts of new problems)