You're presenting this as if it's settled law, but it's not. This is an area of active litigation. Here's an article I wrote about a federal judge in Vermont, f

You're presenting this as if it's settled law, but it's not. This is an area of active litigation. Here's an article I wrote about a federal judge in Vermont, for instance, saying that compelled disclosure of passphrases protecting encrypted volumes violates the Fifth Amendment: http://news.cnet.com/8301-13578_3-9834495-38.html http://news.cnet.com/8301-13578_3-9834495-38.html But a federal judge in Colorado reached the opposite conclusion: http://news.cnet.com/8301-31921_3-57364330-281/ http://news.cnet.com/8301-31921_3-57364330-281/ The U.S. Supreme Court has not ruled on the constitutionality of compelled disclosure of passphrases. Which is why it's a mistake to make definitive claims in this area.