Re: [PATCH 0/4] KEYS: validate key trust with owner and builtin keys only

[Matthew Garrett]

On Tue, Jun 10, 2014 at 11:34:17PM +0300, Dmitry Kasatkin wrote:

> Preventing loading keys from uefi except dbx by default actually improves
> security. Adding kernel parameter to read db we make system more
> vulnerable.

It only adds security if you're performing a measured boot and remote 
attestation. Otherwise you implicitly trust that key anyway. In almost 
all cases refusing to trust db gives you a false sense of security 
without any real improvement. I don't think it's obvious it should be 
the default.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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