I am not sure, but I know the 5th amendment is relevant: you cannot be forced to incriminate yourself by decrypting encrypted materials. Strong cryptography wa

I am not sure, but I know the 5th amendment is relevant: you cannot be forced to incriminate yourself by decrypting encrypted materials. Strong cryptography was also classified as weaponry at one point, and probably hence also subject to the 2nd amendment; whether this is still true, I don't know.