Earlier quoted context omitted.
> Rawls argued that producing a password for the hard drives would amount to an admission that he owned the hard drives. But the 3rd Circuit rejected that argument. It held that the government already had ample evidence that Rawls owned the hard drives and knew the passwords required to decrypt them. So ordering Rawls to decrypt the drives wouldn't give the government any information it didn't already have. Of course…
They can't require you to personally admit to it, but if they know about a notebook where you wrote it they can require you to give up the notebook. (The rule makes more sense if you think about it in terms of financial crimes; it'd be hard to ever prosecute someone for fraud if they didn't have to give up their books.)
The rule make very little sense. I would not bet in favor of it continuing for long. The whole idea that the prosecutor is only asking for the container and not the content was extremity transparent to begin with, and judges who have rejected that argument have said just that. In that case the conclusion the judges made is that a request for the container (ie the unencrypted device) is the same as a request for the information itself, and thus should be seen as such.