For the moment it might not be quite the challenge, because Signal just set up their system smarter than Telegram did, from what I remember.
Signal's legal strategy when it comes to government requests is to first fight it tooth and nail, but when they eventually have to cooperate, they do, via "ah well, there you go, take this bit of nothing". It's a consequence of their messenger design, but it means they are legally cooperative when required, and they have designed…
@blausand @rysiek
… their messenger accordingly, knowing they have to, which is a smart move.
Telegram's legal strategy, from what I remember, seemed to be to just plainly ignore any government requests, the consequence of which might just have happened to Durov now.
So I think Signal has already a pretty smart response to legislatory forces.
Of course there could always be a more authoritarian environment, but that would require a very straightforward mask-off approach in legislation. …