[dm-crypt] recover old crypt partition

Jonas Meurer jonas at freesources.org
Thu Jan 6 22:08:42 CET 2011


On 06/01/2011 Arno Wagner wrote:
> On Thu, Jan 06, 2011 at 04:33:52PM +0100, Jan Christoph Uhde wrote:
> > > Is this plain dm-crypt?
> >
> > i used cryptsetup in debian sid
> Yes, but did you create a LUKS partition or a plain dm-crypt one?
> The default would have been dm-crypt. Hmm. That would mean the cipher 
> is probably the old default of aes-cbc-plain. Can anybody confirm that
> for Debian SID?

what do you mean with "the default". it highly depends on the method
that was used to encrpyt the device. was it done during installation
process (debian-installer), with the shipped luksformat script, with
some graphical frontend (gnome-device-manager, gnome-disk-utility, ...)
or by invoking cryptsetup directly (with which commandline arguments?).

the default cipher depends on the cryptsetup package version used when
the decive was encrypted.

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