From: Christoph Anton Mitterer <christoph.anton.mitterer@physik.uni-muenchen.de>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Hybrid drives
Date: Sat, 17 Jul 2010 13:10:17 +0200 [thread overview]
Message-ID: <1279365017.3289.26.camel@fermat.scientia.net> (raw)
In-Reply-To: <20100717094646.GA8391@fancy-poultry.org>
[-- Attachment #1: Type: text/plain, Size: 828 bytes --]
On Sat, 2010-07-17 at 11:46 +0200, Heinz Diehl wrote:
> As far as I understand, the SSD part of these hybrid drives is used as a
> cache, which doesn't loose its data when powered off. The disc itself is
> completely in encrypted state when off, but I'm quite curious what maybe
> could happen to the SSD part.
All is encrypted,.. expect those parts of the header which aren't
encrypted anyways.
The kernel encrypts everything at the (dm-crpyt) block layer,... "long"
before this goes out to hardware,... so the hardware never sees anything
that's unencrypted.
> is it completely covered by the additional crypto layer, or is there some
> internal transfer which happens "automatically" without being under
> control of the crypto layer?
As long as your CPU/bus is not hacked,... no ;)
Cheer,
Chris.
[-- Attachment #2: smime.p7s --]
[-- Type: application/x-pkcs7-signature, Size: 3387 bytes --]
next prev parent reply other threads:[~2010-07-17 11:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-17 7:13 [dm-crypt] Hybrid drives Heinz Diehl
2010-07-17 7:17 ` Heinz Diehl
2010-07-17 7:58 ` Luca Berra
2010-07-17 9:46 ` Heinz Diehl
2010-07-17 11:05 ` Mikko Rauhala
2010-07-17 11:45 ` Heinz Diehl
2010-07-17 13:27 ` Sven Eschenberg
2010-07-17 11:10 ` Christoph Anton Mitterer [this message]
2010-07-17 10:57 ` Christoph Anton Mitterer
2010-07-18 17:01 ` Arno Wagner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1279365017.3289.26.camel@fermat.scientia.net \
--to=christoph.anton.mitterer@physik.uni-muenchen.de \
--cc=dm-crypt@saout.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.