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Message-ID: <87r4lks7jg.fsf@mid.deneb.enyo.de>
Date: Thu, 17 Jan 2013 06:27:47 +0100
From: Florian Weimer <fw@...eb.enyo.de>
To: oss-security@...ts.openwall.com
Subject: Re: gnome-keyring does not discard stored secrets in some cases
* Kurt Seifried:
>> I've verified that Fedora 17 (GNOME 3.4) does not discard cached
>> keys on suspend and hibernate, either. (Swap is encrypted, though,
>> at least I selected that in the installer.) However, I suspect
>> that users expect that suspend (but perhaps not hibernate) does not
>> discard keys.
>
> Just to confirm, is this behavior documented at all in the gnome
> keyring documentation (e.g. that it does or doesn't do it)? Thanks.
I think the clearest part is
<https://live.gnome.org/GnomeKeyring/SecurityPhilosophy>, which
proclaims:
| * Try to keep your secrets from being swapped out or otherwise
| written to disk.
| * Hunkering down and discarding all secrets when your computer is
| locked.
The documentation for gnome_keyring_lock_all_sync
<http://developer.gnome.org/gnome-keyring/unstable/gnome-keyring-Keyrings.html#gnome-keyring-lock-all-sync>
says:
| Lock all the keyrings, so that their contents may not eb accessed
| without first unlocking them with a password.
In addition,
<http://developer.gnome.org/gnome-keyring/unstable/gnome-keyring-Non-pageable-Memory.html>
suggests that locked memory is never written to disk. This is not
true with hibernation.
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