Zdar,
ku koncu sa to s otazkami hodne zacalo tahat k pravnym veciam a plausible deniability.
Plausible deniability az na specialne pripady (napr. provozovani Tor exit node) nepomoze, podobne ako to nepomohlo Manningovi s OTR. Celkom dobre to ilustruje Jon Callas na cryptography@lists.randombit.net:
There is no such thing as plausible deniability in a legal context.
Plausible deniability is a term that comes from conspiracy theorists (and like many things contains a kernel of truth) to describe a political technique where everyone knows what happened but the people who did it just assert that it can't be proven, along with a wink and a nudge.
But to get to the specifics here, I've spoken to law enforcement and border control people in a country that is not the US, who told me that yeah, they know all about TrueCrypt and their assumption is that *everyone* who has TrueCrypt has a hidden volume and if they find TrueCrypt they just get straight to getting the second password. They said, "We know about that trick, and we're not stupid."
I asked them about the case where someone has TrueCrypt but doesn't have a hidden volume, what would happen to someone doesn't have one? Their response was, "Why would you do a dumb thing like that? The whole point of TrueCrypt is to have a hidden volume, and I suppose if you don't have one, you'll be sitting in a room by yourself for a long time. We're not *stupid*."
Rovnako ako neuspeje argumentacia "ja som len generoval nahodne cisla a vzdy mi z toho vysiel HTTP POST request". U sudu sa zavola sudny znalec a on to rozhodne nezozere.
BTW k poslednemu pripadu ked sud rozhodol, ze obzalovany nemusi desifrovat disk - nakoniec heslo uhadli (asi ho bruteforcli):
http://www.wired.com/threatlevel/2012/02/decryption-flap-mooted
OM