[dm-crypt] Hybrid drives

Christoph Anton Mitterer christoph.anton.mitterer at physik.uni-muenchen.de
Sat Jul 17 12:57:31 CEST 2010

On Sat, 2010-07-17 at 09:13 +0200, Heinz Diehl wrote:
> In other words: such hybrid drives can not safely be encrypted with
> LUKS/dmcrypt (or any other WDE software), because the controller 
> randomly swaps out 4 GB data to the SSD area, and even after shutting 
> down the machine, parts of/the whole LUKS header/key could possibly 
> be left on the SSD part?
Why? If you completely encrypt everything,... nothing unencrypted should
ever reach the disk? And the header is open readable anyway (of course
the keys are encrypted).


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