linux-kernel - Re: [TuxOnIce-devel] RFC: Suspend-to-ram cold boot protection by encrypting page cache

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Message-ID: <87hbxn78o6.fsf@jeremyms.com>
Date:	Wed, 08 Jul 2009 03:47:53 -0700
From:	Jeremy Maitin-Shepard <jeremy@...emyms.com>
To:	Pavel Machek <pavel@....cz>
Cc:	Nigel Cunningham <ncunningham@...a.org.au>,
	tuxonice-devel@...ts.tuxonice.net, linux-kernel@...r.kernel.org,
	Rafael Wysocki <rjw@...k.pl>
Subject: Re: [TuxOnIce-devel] RFC: Suspend-to-ram cold boot protection by encrypting page cache

Pavel Machek <pavel@....cz> writes:

[snip]

> I believe uswsusp could be used rather easily. Just modify s2disk to
> encrypt image in ram without writing it out, then decrypt it from ram
> and resume... it should be interesting hack.

As far as I understand, that would be completely useless since the image
that would be encrypted would just be a copy of what would still remain
in memory.

-- 
Jeremy Maitin-Shepard
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