On Thu, Jun 18, 2020 at 9:13 AM Paul Wouters <p...@nohats.ca> wrote:

> On Thu, 18 Jun 2020, Eric Rescorla wrote:
>
> > On Thu, Jun 18, 2020 at 6:47 AM Tim Wicinski <tjw.i...@gmail.com> wrote:
> >       Eric
> >
> > One of the reasons we've published 8624 was to offer usage
> recommendations,
> > and especially this table:
> >
> > https://tools.ietf.org/html/rfc8624#page-5
> >
> > I believe I saw that one of the authors mentioned earlier they are
> looking to
> > do a -bis update, to update this table.
> >
> >
> > Thanks for the pointer. And I suppose I could live with an Informational
> RFC with a  NOT RECOMMENDED entry in this table.
>
> It would be very strange to introduce a new algorithm as NOT RECOMMENDED.
> The weakest I think we should introduce something is as MAY.
>

The way that TLS has handled this is to have the registries have a column
called Recommended and we just mark things Y or N. This is slightly
different from RFC 2119 language.

It's not that uncommon to have new stuff introduced with Recommended = N.
In fact this is the likely outcome for the GOST cipher suites:
https://datatracker.ietf.org/doc/draft-smyshlyaev-tls13-gost-suites/

-Ekr
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