You want to secure encryption you don't use password/passphrase, you use randomly generated 1KB key files on a thumbdrive like ironkey. Container on hdd needs keys from ironkey container to be mounted
There is a interesting legal problem with that approach that is working it's way through the courts right now. A key that is a physicall object, even one that is on a USB drive, can be legally obtained, and accessed with a simple search warrant. But if a court orders you to give out a password that is in your head, you can say no, claiming fifth amendment rights, in that providing the password would provide information that would tend to incriminate you. Maybe in ways that have nothing to do with the current investigation. It is an interesting case that originated out of Colorado. The defendant has refused to provide authorities or the court with the password to his encrypted computer claiming fifth amendment rights. His attorney has been working his way up to what everybody thinks will make it to the Supreme Court.
