Just like possessing a key means you were associated with the safe and its contents, though. Again, there's still a real-world analogy so I suspect the courts w

Just like possessing a key means you were associated with the safe and its contents, though. Again, there's still a real-world analogy so I suspect the courts will treat it as they do in the real world and try to determine on a case-by-case basis whether simply being able to decrypt the data could be considered incriminating or not. For instance, it's not self-incriminating if the government can show that they already know you're associated with the key/lock. Likewise with an encryption key...