On Čt 14-04-05 09:39:04, Herbert Xu wrote:
> On Thu, Apr 14, 2005 at 01:24:31AM +0200, Pavel Machek wrote:
> >
> > > The ssh keys are *encrypted* in the swap when dmcrypt is used.
> > > When the swap runs over dmcrypt all writes including those from
> > > swsusp are encrypted.
> >
> > Andreas is right. They are encrypted in swap, but they should not be
> > there at all. And they are encrypted by key that is still available
> > after resume. Bad.
>
> The dmcrypt swap can only be unlocked by the user with a passphrase,
> which is analogous to how you unlock your ssh private key stored
> on the disk using a passphrase.
Once more:
Andreas' implementation destroys the key during resume.
dm-crypt does not even know resume happened, so it can't destroy
key. (And it would also render system useless).
Pavel
--
Boycott Kodak -- for their patent abuse against Java.
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