linux-kernel - Re: Hibernation considerations

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Message-ID: <20070717174044.GA11212@gallifrey>
Date:	Tue, 17 Jul 2007 18:40:44 +0100
From:	"Dr. David Alan Gilbert" <linux@...blig.org>
To:	david@...g.hm
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	LKML <linux-kernel@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Huang, Ying" <ying.huang@...el.com>,
	Jeremy Maitin-Shepard <jbms@....edu>,
	Kyle Moffett <mrmacman_g4@....com>,
	Nigel Cunningham <nigel@...el.suspend2.net>,
	Pavel Machek <pavel@....cz>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	Al Boldi <a1426z@...ab.com>
Subject: Re: Hibernation considerations

* david@...g.hm (david@...g.hm) wrote:
> On Mon, 16 Jul 2007, Rafael J. Wysocki wrote:

> >Encryption is possible with both the userland hibernation (aka uswsusp) and
> >TuxOnIce (formerly known as suspend2).  Still, I don't consider it as a 
> >"must
> >have" feature for a framework to be generally useful (many users don't use 
> >it
> >anyway).
> 
> he's talking about the main system useing an encrypted device/partition, 
> not the hibernate image being stored encrypted.
> 
> This would require the main system 'forget' the keys when it does the 
> hinbernate and prompt for it again during the wake-up phase.

Indeed - although as I say I really don't know what you would do with
apps using the mounts at that point.   Still it seems like a 
sensible requrest from the security side.

Dave
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/
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