linux-kernel - Re: [GIT PULL] Load keys from signed PE binaries

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Message-ID: <512F7B0E.1030404@genband.com>
Date:	Thu, 28 Feb 2013 09:43:10 -0600
From:	Chris Friesen <chris.friesen@...band.com>
To:	Florian Weimer <fw@...eb.enyo.de>
CC:	Greg KH <gregkh@...uxfoundation.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	David Howells <dhowells@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Josh Boyer <jwboyer@...hat.com>,
	Peter Jones <pjones@...hat.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Kees Cook <keescook@...omium.org>, keyrings@...ux-nfs.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] Load keys from signed PE binaries

On 02/28/2013 01:57 AM, Florian Weimer wrote:

> In any case, there's another reading of the UEFI Secure Boot
> requirements: you may run any code you wish after calling
> ExitBootServices().  That could be an unsigned, traditional GRUB.  But
> this will not generally address the issue of dual-booting Windows 8 in
> such a way that Windows sees that the device has enabled Microsoft
> Secure Boot.

Would it be possible to have a signed bootloader that allows booting 
Win8 from within the secure environment, or it could exit the secure 
environment and run unsigned grub?

Chris
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