[dm-crypt] Variable data offset for a LUKS volume that uses a detached header.

.. ink .. mhogomchungu at gmail.com
Tue Dec 22 16:47:01 CET 2015


> You can probably write a script that will modify final mapping using
> dmsetup (but that's quite a hack). Also simple program should be able
> to reformat header to downgrade the header (keep keys and cipher chain).
>

Its possible to create the mapper directly using only dmsetup but the
problem is managing the
master key i extracted from VeraCrypt volume and i though a detached
LUKS header would be adequate in holding it and protect it with a
passphrase.

> But wouldn't be better just to use old TrueCrypt modes here from
> the beginning?
>

My advise to people is to continue to use TrueCrypt volumes and crank
up the passphrase quality.

The problem here is that it is somebody else's VeraCrypt volume and i
am using it enough times to be annoyed by its delays and i thought of
looking into ways of by passing it.


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