From: Mike Gerwitz <mtg@gnu.org>
To: Chris Marusich <cmmarusich@gmail.com>
Cc: guix-devel@gnu.org
Subject: Re: Encrypted root partition
Date: Wed, 18 Jan 2017 23:08:22 -0500 [thread overview]
Message-ID: <87d1fjd749.fsf@gnu.org> (raw)
In-Reply-To: 87eg00k372.fsf@gmail.com
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On Wed, Jan 18, 2017 at 03:38:57 -0800, Chris Marusich wrote:
> As a bonus, I realized that one could use this feature to encrypt swap,
> also. You can encrypt your swap area by using a swap file in the root
> file system. Specifically, if you do something like this...
Using an ephemeral key for swap (that is: a temporary key that is
randomly generated and never stored) is preferred: when you unmount it,
the data won't be recoverable.
Mounting a normal swapfile, on the other hand, writes swapped memory to
disk, which opens a host of potential security and forensic issues.
Of course, so does traditional swap. :)
I'm not familiar enough with Guix (yet!) to know how to set it up, but I
also haven't done any research. Arch has a good summary:
https://wiki.archlinux.org/index.php/Dm-crypt/Swap_encryption
--
Mike Gerwitz
Free Software Hacker+Activist | GNU Maintainer & Volunteer
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https://mikegerwitz.com
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next prev parent reply other threads:[~2017-01-19 4:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-23 22:31 Encrypted root partition Ludovic Courtès
2016-11-24 6:45 ` Chris Marusich
2016-11-24 22:37 ` Ludovic Courtès
2016-11-25 16:06 ` ng0
2017-01-18 9:58 ` Chris Marusich
2017-01-18 11:38 ` Chris Marusich
2017-01-18 20:53 ` Efraim Flashner
2017-01-18 21:16 ` Ludovic Courtès
2017-01-19 4:08 ` Mike Gerwitz [this message]
2017-01-19 4:21 ` Chris Marusich
2017-01-19 22:31 ` dian_cecht
2017-01-18 21:17 ` Ludovic Courtès
2017-01-19 4:30 ` Chris Marusich
2017-01-19 12:07 ` Ludovic Courtès
2017-01-20 5:37 ` Chris Marusich
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