[Rats] Clarifications around Endorsements scope

[Thomas Fossati <[e-mail]>]

Hi all,

Before I go on holiday and my memory is fully reset :-)

During the session yesterday there was a bit of back and forth on jabber
[0] about the scope of endorsements.

It looks like the ARCH phrases the term [1] and illustrates it [2] in a
way that has led people to believe that an endorsement is only scoped to
an instance.

Personally, I think this is a limitation that serves no purpose other
than creating a gap in the conceptual modelling provided by the ARCH -
exemplified by our inability to give a proper name to the DLOA thing -
and I'd like to see it clarified that the definition of endorsement is
orthogonal to the cardinality of the (sub)set of Attesters to which it
applies.

cheers!

PS: I shall note that the CoRIM/CoMID information model builds on the
assumption that endorsements can have instance, class and even "group"
(e.g., an anonymity set) scope.

[0] https://jabber.ietf.org/jabber/logs/rats/2021-07-29.html#20:57:54.659809
[1] https://www.ietf.org/archive/id/draft-ietf-rats-architecture-12.html#section-4.2-1.4.1
[2] https://www.ietf.org/archive/id/draft-ietf-rats-architecture-12.html#name-endorsements












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