| Date | Tue, 10 Jun 2014 21:40:21 +0100 | From | Matthew Garrett <> | Subject | Re: [PATCH 0/4] KEYS: validate key trust with owner and builtin keys only |
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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@srcf.ucam.org
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