Re: [PATCH v5 04/11] security: keys: trusted: Include TPM2 creation data

From: Evan Green
Date: Mon Dec 05 2022 - 13:44:01 EST


On Fri, Dec 2, 2022 at 1:03 PM James Bottomley <jejb@xxxxxxxxxxxxx> wrote:
>
> On Mon, 2022-11-14 at 13:00 -0500, James Bottomley wrote:
> > On Mon, 2022-11-14 at 09:43 -0800, Evan Green wrote:
> > > On Mon, Nov 14, 2022 at 8:56 AM James Bottomley
> > > <jejb@xxxxxxxxxxxxx>
> > > wrote:
> > [...]
> > > > Of course, since openssl_tpm2_engine is the complete reference
> > > > implementation that means I'll have to add the creation PCRs
> > > > implementation to it ... unless you'd like to do it?
> > >
> > > I am willing to help as I'm the one making the mess. How does it
> > > sequence along with your draft submission (before, after,
> > > simultaneous)?
> >
> > At the moment, just send patches. The openssl_tpm2_engine is
> > developed on a groups.io mailing list:
> >
> > https://groups.io/g/openssl-tpm2-engine/
> >
> > You need an IETF specific tool (xml2rfc) to build the rfc from the
> > xml, but it's available in most distros as python3-xml2rfc. If you
> > don't want to learn the IETF XML I can help you code up the patch to
> > add that to the draft spec.
>
> Just as a heads up, the patch series implementing signed policy (and
> thus taking option [3]) is on the mailing list for review:
>
> https://groups.io/g/openssl-tpm2-engine/message/296
>
> With apologies for the awful lack of threading in the groups.io
> interface.
>
> So you don't have to build the RFC yourself, I published the proposed
> update on my website:
>
> https://www.hansenpartnership.com/draft-bottomley-tpm2-keys.html
> https://www.hansenpartnership.com/draft-bottomley-tpm2-keys.txt
>
> If you want to use option [4] for the creation data, it's available.

Perfect, thanks James!
-Evan