Earlier quoted context omitted.
Two mathematicians could literraly communicate encrypted on a piece of paper, and there would be no way to stop them other than scaring them put of doing it with threats of violence, jail or similar. There is an aspect ro this we have to acknowledge: we live in a world where everybody who knows how can create encrypted communications that are impossible or at least very costly to break. You cannot stop them from doin…
>If we ban that kind of communications, the only persons making use of it will be people who really have something to hide. Criminals, drug cartels, financial fraudsters, terrorists and the likes. Which also means they are the only ones who got to get safe communication channels. They wouldn't be safe, though. Merely using encrypted communication would be enough to warrant attention. Encryption only provides plausibl…
Provided they are using the same channels as the rest of us. Which they will not do, unless they are stupid.