There’s been an increasing call in recent weeks and months for encryption to have government ‘backdoors’ put into them. This is a bad idea. No really, it’s an incredibly bad idea. Even if we took the assumption that it is a push that’s made with only the purest of intentions, and the government universal key is kept 100% safe and secure and never leaked or misused, it’s still a really, unbelievably, stupid idea.
Honestly the current SCOTUS has largely been finding in line with those things explicitly and literally within the US Constitution. I could see them considering being required to provide a password being required to provide evidence against yourself, which is a Fifth Amendment violation, or compelling speech in violation of the First, like you said. It’s not impossible it violates both, and I’d expect to see that argument made in the decision.