[Rats] What's to EAT?
Michael Richardson <email@example.com> Tue, 12 November 2019 09:22 UTC
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From: Michael Richardson <firstname.lastname@example.org>
Date: Tue, 12 Nov 2019 17:08:05 +0800
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Subject: [Rats] What's to EAT?
List-Id: Remote Attestation Procedures <rats.ietf.org>
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On 2019-11-12 12:19 p.m., Dave Thaler wrote: > > Ned Smith wrote: > > > So far the group has used the term "EAT" to refer to both the > information model and data serialization expressions. > > > > I would rather see the term EAT (and any other terms ending in Token, > like JWT and CWT) only be used to refer to > > data serialization expressions, not the information model. > I concur. I'm completely perplexed by that thread about "Call for adoption", so I've changed the subject line, and started a new thread. > > When extending information model to YANG or some other serialization > (e.g. ASN.1). Given the possibility for an IM > > > expression to be realized by different serializations, what term > should we give to the IM description? > > > > That’s a fine question, and I don’t have any strong preference right > now, other than to not use the same term as something else. > > Offhand, my preference would be to not define a term, and just use > Evidence and Attestation Result as the terms for > > format-independent discussion. I think it is useful to distinguish > between Evidence vs Attestation Results in many cases. > > And if you need to refer to both, then we can always use both > together, such as “Evidence and Attestation Results”. > +1 > > > > The term "Claim" has been used extensively. Do we want to agree to > use "claim" to refer to anything that is an IM > > expression in RATS and "Token" for any serialization (realization) > even if it isn't a JWT or CWT? > > > > I would say no. To me, a claim is one particular piece of information, > where a “Token” or whatever else has a set of claims. > > > I mostly agree. I think that it's okay to say, "The uptime claim is forwarded to the Flu-Flu Processor" rather than saying "The Token containing the uptime claim is forwarded to the Flu-Flu Processor"