On Tue, 2014-06-10 at 22:40 +0100, Matthew Garrett wrote: 
> On Wed, Jun 11, 2014 at 12:34:28AM +0300, Dmitry Kasatkin wrote:
> 
> > My statement is still valid. It is a hole...
> > 
> > To prevent the hole it should be explained that one might follow
> > certain instructions
> > to take ownership of your PC. Generate your own keys and remove MS and
> > Vendor ones...
> 
> The hole is that the system trusts keys that you don't trust. The 
> appropriate thing to do is to remove that trust from the entire system, 
> not just one layer of the system. If people gain the impression that 
> they can simply pass a kernel parameter and avoid trusting the vendor 
> keys, they'll be upset to discover that it's easily circumvented.

Assuming I remove all the keys I don't trust, there are still keys that
are trusted while booting, but are not necessary afterwards.  We should
be able to limit the scope of where and when keys are trusted.

Mimi

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