It’s oddly liberating in a way. Once you get over the initial revulsion of no TLS, to reuse the example, you can build simple protocols that just use a callsign

It’s oddly liberating in a way. Once you get over the initial revulsion of no TLS, to reuse the example, you can build simple protocols that just use a callsign for authentication (that’s just a convenience for the operator too, who must station ID every 10 minutes). It makes it easier to experiment without thinking about security at all, because the assumption hams have is that all conversations are public.