[PATCH 4/6] kexec: A new system call, kexec_file_load, for in kernel kexec

[Matthew Garrett]

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 at srcf.ucam.org