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From: "Bodo Eggert <harvested.in.lkml@posting.7eggert.dyndns.org>"  <7eggert@gmx.de>
To: Andy Isaacson <adi@hexapodia.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Pavel Machek <pavel@ucw.cz>, Andreas Steinmetz <ast@domdv.de>,
	rjw@sisk.pl, linux-kernel@vger.kernel.org
Subject: Re: encrypted swap (was Re: [PATCH encrypted swsusp 1/3] core functionality)
Date: Thu, 14 Apr 2005 12:57:50 +0200	[thread overview]
Message-ID: <E1DM22j-0000nq-OY@be1.7eggert.dyndns.org> (raw)
In-Reply-To: <3T83r-1Mk-35@gated-at.bofh.it>

Andy Isaacson <adi@hexapodia.org> wrote:

>  * the key is automatically regenerated every 2 hours (or whatever); as
>    pages encrypted under the old key age out, it can be freed eventually

Changing the key would not help, since if you can get the swap pages on
a running system, you can also get the keys, and if you are using a limited
set of keys (you obviously want that), using more than one key will just add
a small linear factor to cracking the whole swap data of an offline system.
-- 
Field experience is something you don't get until just after you need it. 

Friß, Spammer: info@fibelckn.info webmaster@tlcks.com borrowed@jebafdef.info
 graspable9755@incbggc.info zm-e@bnik.com several@sanction6029biz.us

       reply	other threads:[~2005-04-14 10:58 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <3SZMt-3zo-15@gated-at.bofh.it>
     [not found] ` <3T83r-1Mk-35@gated-at.bofh.it>
2005-04-14 10:57   ` Bodo Eggert <harvested.in.lkml@posting.7eggert.dyndns.org> [this message]
2005-04-13 23:39 [PATCH encrypted swsusp 1/3] core functionality Herbert Xu
2005-04-14  8:31 ` encrypted swap (was Re: [PATCH encrypted swsusp 1/3] core functionality) Andy Isaacson
2005-04-14  8:38   ` Herbert Xu
2005-04-14  8:49     ` Arjan van de Ven

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