It can't be fully banned. I could envisage an authoritarian government demanding that you register to use ssh for work or whatever purposes. Obviously that does

It can't be fully banned. I could envisage an authoritarian government demanding that you register to use ssh for work or whatever purposes. Obviously that doesn't actually prevent a determined individual with some know-how but it can be done effectively enough to bar most users and enable mass-surveillance. They know you can't stop all encryption. One time pads will always work when used correctly. That doesn't matter because they aren't targetting criminals, black-hats, or terrorists. They aren't targetting people that actually have to hide. They are targetting the technologically unaware. I always tell people that this isn't aimed at stopping people that really want to hide, it is about monitoring the majority of the population.