From: Luca Berra <bluca@comedia.it>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] passfrase or dev_random for keyfile of a dmcrypt_swap
Date: Tue, 20 Apr 2010 07:41:27 +0200 [thread overview]
Message-ID: <20100420054127.GA1371@maude.comedia.it> (raw)
In-Reply-To: <20100419163745.C906144B6C@ws5-1.us4.outblaze.com>
On Mon, Apr 19, 2010 at 05:37:45PM +0100, Si St wrote:
>What should be recommended:
>
>To apply either /dev/random or a passfrase for the establishment of a keyfile to a swap partition?
>I am thinking about a potential crash and the consequences if the swap partition has to be used for rebuild of something. Then a /dev/random or if necessary /dev/urandom would not be so good.
Unless you use swap for suspending to disk you can recreate it at boot
using /dev/random, I do not particularly like the doing that tough.
Since devices and partition have a tendency to change name under linux,
it is fairly possible that you shoot yourself in the feet for no
particular advantage.
L.
--
Luca Berra -- bluca@comedia.it
Communication Media & Services S.r.l.
/"\
\ / ASCII RIBBON CAMPAIGN
X AGAINST HTML MAIL
/ \
next prev parent reply other threads:[~2010-04-20 5:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-19 16:37 [dm-crypt] passfrase or dev_random for keyfile of a dmcrypt_swap Si St
2010-04-19 16:54 ` Arno Wagner
2010-04-19 19:01 ` Heinz Diehl
2010-04-20 5:41 ` Luca Berra [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-04-20 14:15 Si St
2010-04-20 15:15 ` Arno Wagner
2010-04-21 8:34 ` Heinz Diehl
2010-04-21 9:06 ` Jonas Meurer
2010-04-20 18:06 Si St
2010-04-20 19:14 ` 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=20100420054127.GA1371@maude.comedia.it \
--to=bluca@comedia.it \
--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.