Re: Fedora TPM1.2 Support

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On Thu, 2020-12-03 at 21:25 +0000, Peter Robinson wrote:
> > We are looking to no longer support TPM1.2 in RHEL9. Than raised the
> > question with regards to opencryptoki-tpmtok if it should be changed in
> > Fedora as well, so I thought I'd see what everyone thinks about future
> > TPM1.2 support in Fedora. I know at one point in the last year or so
> > trousers almost dropped from Fedora due to being orphaned for quite a
> > while. From what I could find the following packages have dependencies:
> > 
> > ecryptfs-utils  - --disable-tspi
> > openconnect - looks like it will only build support if trousers-devel is
> >               there, and makes use of tpm2-tss as well.
> > strongswan  - --enable-tss-tss2 instead of --enable-tss-trousers?
> > tboot       - the trousers dependency was just in a policy tool that has now
> >               been deprecated upstream.
> > opencryptoki-tpmtok - --disable-tpmtok
> > 
> > tpm-quote-tools, tpm-tools, and trousers are all tpm1.2 specific
> > packages.
> > 
> > Another thing is that in the kernel there currently is no way to build
> > with just tpm1.2 or tpm2.0 support so the kernel support for tpm1.2
> > would still be there.
> > 
> > I don't think Fedora needs to drop the tpm1.2 support if people want to
> > continue supporting it, but wanted to put the question out there and see
> > how everyone felt.
> 
> I think it should be dropped, tpm2 has been shipped in hardware for 5+
> years and tpm1 has security issues, so I think the time is now to drop
> it. Please do a Fedora Change proposal to ensure it's communicated
> properly.

Won't that hurt people that have keys trapped in a TPM 1.2 device ?

Simo.

-- 
Simo Sorce
RHEL Crypto Team
Red Hat, Inc



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