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From: Philipp Wendler <ml@philippwendler.de>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Status of trim for SSds?
Date: Thu, 14 Jul 2011 18:39:38 +0200	[thread overview]
Message-ID: <4E1F1BCA.9000807@philippwendler.de> (raw)
In-Reply-To: <4E1F116D.50402@redhat.com>

Hello,

Am 14.07.2011 17:55, schrieb Milan Broz:

> My opinion is that TRIM for encrypted disk is stupid idea,

I would be interested in the reasons for this, as I also have dm-crypt
on an SSD, and wondered whether it is a good idea to enable trim or not
(as soon as its ready).
What could an attacker do with the information which blocks are used and
which are unused?

I always thought that using trim would essentially be the same as not
writing random data to your disk before encrypting it, and this behavior
is actually the default.

Greetings, Philipp

  parent reply	other threads:[~2011-07-14 16:39 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-11 22:17 [dm-crypt] Passphrase protected key file? Laurence Darby
2011-07-12 11:40 ` Jorge Fábregas
2011-07-12 12:47 ` Arno Wagner
2011-07-14  9:10   ` Ma Begaj
2011-07-14 11:04     ` Arno Wagner
2011-07-14 11:55       ` Ma Begaj
2011-07-14 13:35         ` Arno Wagner
2011-07-14 14:12           ` Heiko Rosemann
2011-07-14 14:46             ` [dm-crypt] Status of trim for SSds? André Gall
2011-07-14 15:55               ` Milan Broz
2011-07-14 16:04                 ` Christoph Anton Mitterer
2011-07-14 16:39                 ` Philipp Wendler [this message]
2011-07-14 16:52                   ` Milan Broz
2011-07-14 17:14                     ` Philipp Wendler
2011-07-15 13:59                 ` Christian Hesse
2011-07-15 14:48                   ` Milan Broz
2011-07-18  8:45                     ` Christian Hesse
2011-07-18 10:04                       ` Milan Broz
2011-07-18 10:16                         ` Christian Hesse
2011-07-21 12:55                           ` Christian Hesse
2011-07-24 17:18                 ` MkFly
2011-07-24 18:34                   ` Milan Broz
2011-07-14 19:27             ` [dm-crypt] Passphrase protected key file? Arno Wagner
2011-07-14 21:21               ` Heiko Rosemann
2011-07-14 21:44                 ` Arno Wagner
2011-07-15  5:33                   ` Iggy
2011-08-03 12:09                     ` Laurence Darby
2011-08-03 13:41                       ` Arno Wagner
2011-08-03 11:35   ` Laurence Darby
2011-08-03 13:45     ` Arno Wagner

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