Re: Intention to tighten RPM crypto-policy back

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On Tue, Sep 26, 2023 at 6:23 PM Alexander Sosedkin <asosedkin@xxxxxxxxxx> wrote:
>
> On Tue, Sep 19, 2023 at 7:47 PM Kevin Fenzi <kevin@xxxxxxxxx> wrote:
> >
> > On Tue, Sep 19, 2023 at 11:19:18AM +0200, Alexander Sosedkin wrote:
> > > Hello,
> > >
> > > 6 months ago, there's been a F38 blocker: https://pagure.io/fesco/issue/2960
> > > Long story short:
> > > RPM has moved to sequoia,
> > > sequoia has started respecting crypto-policies,
> > > Google repos have been signed with a 1024-bit DSA key,
> > > Google Chrome was not installable => F38 blocker.
> > > Back at the time, it's been hastily "resolved"
> > > by relaxing RPM security through crypto-policies
> > > just enough to tolerate that Google signature:
> > > https://bugzilla.redhat.com/show_bug.cgi?id=2170878
> > > https://gitlab.com/redhat-crypto/fedora-crypto-policies/-/merge_requests/129
> > >
> > > Since then it has been brought to my attention that
> > > Google has now added a 4096 bit RSA key
> > > https://www.google.com/linuxrepositories/
> > > (EB4C 1BFD 4F04 2F6D DDCC EC91 7721 F63B D38B 4796)
> > >
> > > Because of that, I'd like to revert that RPM policy relaxation
> > > https://gitlab.com/redhat-crypto/fedora-crypto-policies/-/commit/a12f7b20638be8f872ad1995c7d2edce41c227b5
> > > in (f39) rawhide and align RPM security with the rest of the policy.
> > >
> > > Thoughts / feedback?
> >
> > It might be good to go through all the ones that were hit by this (it
> > wasn't just chrome) and indicate if they are now fixed.
> > You can see a partial list in the common bug:
> >
> > https://discussion.fedoraproject.org/t/popular-third-party-rpms-fail-to-install-update-remove-due-to-security-policies-verification/70498
> >
> > and in the discussion off it.
>
> Whoa, that's too many, I suspect misreporting.
> I seriously doubt they were all really using DSA-1024 and switched over.
> But if that really was the case --- great job to all of them.
>
> > The list from there:
> >     Google Chrome (RPM signature rejected, repo key rejected)
> Repo has added RSA-4096, RPM is signed with SHA-512, installs
>
> >     Microsoft Edge (repo key rejected)
> RSA-2048, RPM is signed with SHA-256, installs
>
> >     Dropbox (repo key rejected)
> RSA-2048, RPM is signed with SHA-512
>
> >     Skype (repo key rejected)
> RSA-2048 / SHA-512
>
> >     Visual Studio Code (repo key rejected)
> RSA-2048 / SHA-256 (let's name a package `code`. outstanding move)
>
> >     Sublime Text (repo key rejected)
> RSA-4096 / SHA-256
>
> >     Microsoft Teams (repo key rejected)
> RSA-2048, but https://packages.microsoft.com/yumrepos/ms-teams/repodata
> looks barren

I believe MS has end of life the dedicated Linux Teams app and
possibly viewer and only support the web app now.

> >     TeamViewer (repo key rejected)
> RSA-4096 / SHA-256
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