On Thu, Nov 21, 2013 at 07:19:07PM +0000, Matthew Garrett wrote: > 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. Then I can't assume that RSA signatures are appened to bzImage, as we do for modules. Also I am assuming that authenticode signing will change something in PE/COFF header and that would invalidate the bzImage signature. Thanks Vivek
