linux-kernel - Re: Runtime updates to EFI secure variables

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20120713180231.GA19355@srcf.ucam.org>
Date:	Fri, 13 Jul 2012 19:02:31 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
Cc:	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Runtime updates to EFI secure variables

On Fri, Jul 13, 2012 at 06:12:26PM +0100, James Bottomley wrote:

> This means (provided we have access to the relevant keys) we can move
> the platform into and out of Setup Mode as well as add signing and other
> keys.

I'm pretty sure that the expected behaviour is to use 
EFI_VARIABLE_APPEND_WRITE for these updates, which means you don't need 
to worry about the timestamp.

-- 
Matthew Garrett | mjg59@...f.ucam.org
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/