[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

> 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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