Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754921Ab2KFACR (ORCPT ); Mon, 5 Nov 2012 19:02:17 -0500 Received: from mx1.redhat.com ([209.132.183.28]:23292 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751499Ab2KFACQ (ORCPT ); Mon, 5 Nov 2012 19:02:16 -0500 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <1348152065-31353-1-git-send-email-mjg@redhat.com> <20121029174131.GC7580@srcf.ucam.org> <20121031173728.GA18615@srcf.ucam.org> <1351743715.21227.95.camel@linux-s257.site> <20121101131849.752df6fd@pyramind.ukuu.org.uk> To: Takashi Iwai Cc: dhowells@redhat.com, Matthew Garrett , Alan Cox , joeyli , Jiri Kosina , Rusty Russell , linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, linux-efi@vger.kernel.org Subject: Re: [PATCH RFC 0/4] Add firmware signature file check Date: Tue, 06 Nov 2012 00:01:52 +0000 Message-ID: <5839.1352160112@warthog.procyon.org.uk> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 905 Lines: 20 Takashi Iwai wrote: > this is a patch series to add the support for firmware signature > check. At this time, the kernel checks extra signature file (*.sig) > for each firmware, instead of embedded signature. > It's just a quick hack using the existing module signing mechanism, > thus provided only as a proof of concept for now. There is another way to do this. If you look at the patches I proposed to wrap keys in PE binaries, you'll find that that can handle PKCS#7 format messages as that's what's in the sort of signed PE binary we're dealing with. You could use this to put the firmware inside a signed-data PKCS#7 message. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/