4 ms·

Yes. The term for that is plausible deniability. It is implemented (probably among others) in truecrypt: http://www.truecrypt.org/docs/?s=plausible-deniability

by ge0rg 15y ago

Yes. The term for that is plausible deniability. It is implemented (probably among others) in truecrypt: http://www.truecrypt.org/docs/?s=plausible-deniability http://www.truecrypt.org/docs/?s=plausible-deniability

sp332 15y ago
Plausible deniability is a much larger concept than that. Also if they know you're using Truecrypt, the "deniability" of the existence of a 2nd (or 3rd or 4th) OS goes down significantly.
- ge0rg 15y ago
  It does indeed. However, what are they going to do? Torture you until you give them the "other" password? How can they distinguish whether you just cleaned your hard drive or if you gave them the wrong key?
  - bdg 15y ago
    The solution is of-course a honey-pot OS to boot.
- gte910h 15y ago
  No it's doesn't. Truecrypt ALSO does full disk encryption...which is a very very good security precaution corporations everywhere are implementing.
- drostie 15y ago
  I'm not so sure. TrueCrypt is first and foremost an encryption program. The fact that you have it might suggest that you encrypted something somewhere, but it doesn't directly suggest that you took the time to use its advanced "hidden volume" capabilities. So even if the police can say "hey, this looks encrypted, and you've got nothing else which looks similar, decrypt it for us," they are still stuck on "hey, we didn't find the evidence we were looking for -- maybe you have a hidden volume?". You say "I don't" and the judge says "GRR ARG DECRYPT IT NOW" and you say "I can't, it doesn't exist, I really am innocent, please get the scary men away from me."
- baddox 15y ago
  The deniability doesn't diminish at all. You can even testify in court that the drive is encrypted using TrueCrypt and that TrueCrypt has plausible deniability. The whole point of TrueCrypt's plausible deniability is even when you know about the feature, you simply can't mathematically prove whether or not it's being used.
  - dedward 15y ago
    not directly, but their faq pretty clear about a bunch of secondary ( out of band, internet updates duplicated, etc) correlations that could lead to good evidence that the second system exists. pulling that off is noeasy task.

by ge0rg 15y ago

sp332 15y ago

Plausible deniability is a much larger concept than that. Also if they know you're using Truecrypt, the "deniability" of the existence of a 2nd (or 3rd or 4th) OS goes down significantly.

ge0rg 15y ago
It does indeed. However, what are they going to do? Torture you until you give them the "other" password? How can they distinguish whether you just cleaned your hard drive or if you gave them the wrong key?
- bdg 15y ago
  The solution is of-course a honey-pot OS to boot.
gte910h 15y ago
No it's doesn't. Truecrypt ALSO does full disk encryption...which is a very very good security precaution corporations everywhere are implementing.
drostie 15y ago
I'm not so sure. TrueCrypt is first and foremost an encryption program. The fact that you have it might suggest that you encrypted something somewhere, but it doesn't directly suggest that you took the time to use its advanced "hidden volume" capabilities. So even if the police can say "hey, this looks encrypted, and you've got nothing else which looks similar, decrypt it for us," they are still stuck on "hey, we didn't find the evidence we were looking for -- maybe you have a hidden volume?". You say "I don't" and the judge says "GRR ARG DECRYPT IT NOW" and you say "I can't, it doesn't exist, I really am innocent, please get the scary men away from me."
baddox 15y ago
The deniability doesn't diminish at all. You can even testify in court that the drive is encrypted using TrueCrypt and that TrueCrypt has plausible deniability. The whole point of TrueCrypt's plausible deniability is even when you know about the feature, you simply can't mathematically prove whether or not it's being used.
- dedward 15y ago
  not directly, but their faq pretty clear about a bunch of secondary ( out of band, internet updates duplicated, etc) correlations that could lead to good evidence that the second system exists. pulling that off is noeasy task.