From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from cavan.codon.org.uk ([2a00:1098:0:80:1000:c:0:1]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VjZmm-0004nf-GN for kexec@lists.infradead.org; Thu, 21 Nov 2013 19:19:33 +0000 Date: Thu, 21 Nov 2013 19:19:07 +0000 From: Matthew Garrett Subject: Re: [PATCH 4/6] kexec: A new system call, kexec_file_load, for in kernel kexec Message-ID: <20131121191907.GA26366@srcf.ucam.org> References: <1384969851-7251-1-git-send-email-vgoyal@redhat.com> <1384969851-7251-5-git-send-email-vgoyal@redhat.com> <20131121190350.GC17070@kroah.com> <20131121190620.GA25951@srcf.ucam.org> <20131121191305.GK16208@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20131121191305.GK16208@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: Vivek Goyal Cc: Greg KH , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Peter Jones , ebiederm@xmission.com, hpa@zytor.com On Thu, Nov 21, 2013 at 02:13:05PM -0500, Vivek Goyal wrote: > On Thu, Nov 21, 2013 at 07:06:20PM +0000, Matthew Garrett wrote: > > That would require a certain degree of massaging from userspace if we > > want to be able to use the existing Authenticode signatures. Otherwise > > we need to sign kernels twice. > > I was thinking oof signing the same kernel twice. Can I sign authenticode > signed kernel again (using RSA signature as we do for modules) and append > the signature to bzImage. No, you'd need to do it the other way around. -- Matthew Garrett | mjg59@srcf.ucam.org _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec