Re: RFC: sign the modules at install time

On Wed, Oct 17, 2012 at 03:44:28PM -0700, Linus Torvalds wrote:
> On Wed, Oct 17, 2012 at 3:19 PM, David Howells <dhowells@redhat.com> wrote:
> >
> > It's probably even better to just get rid of all the automatic module signing
> > stuff completely and leave the sign-file script for the builder to use
> > manually.  The module verification code will still be present.
> 
> That's just disgusting crazy talk.
> 
> Christ, David, get a grip on yourself. You seem to dismiss the "people
> want to build their own kernel" people entirely.
> 
> One of the main sane use-cases for module signing is:
> 
>  - CONFIG_CHECK_SIGNATURE=y
>  - randomly generated one-time key
>  - "make modules_install; make install"
>  - "make clean" to get rid of the keys.
>  - reboot.

I want that too, but right now 'make clean' leaves the keys around,
which seems a bit dangerous to me.

David, why aren't the keys cleaned up as well?  Was that on purpose or
just an oversight?

thanks,

greg k-h