[Rats] Epochs
"Tschofenig, Hannes" <hannes.tschofenig@siemens.com> Wed, 29 November 2023 16:21 UTC
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From: "Tschofenig, Hannes" <hannes.tschofenig@siemens.com>
To: rats <rats@ietf.org>
Thread-Topic: Epochs
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Date: Wed, 29 Nov 2023 16:20:57 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/rats/TOp9OGiSNzIMg8pJukS6QV3r-Ww>
Subject: [Rats] Epochs
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Hi all, at the last IETF meeting I asked questions during the presentation of <draft-birkholz-rats-epoch-markers> and due to lack of time there was no possibility to answer them. Hence, I bring the question here to the mailing list. Section 10 of RFC 9334 talks about the freshness mechanisms for attestation and also explains the concept of epochs in Section 10.3. It says: "A third approach relies on having epoch identifiers (IDs) periodically sent to both the sender and receiver of Evidence or Attestation Results by some "epoch ID distributor"." Appendix A.3 then provides an example with an epoch id distributor, which periodically broadcasts epoch ids to all involved parties. During the meeting I was wondering what protocols are being used to distribute these epoch ids, a topic <draft-birkholz-rats-epoch-markers> ignores to answer. Instead, it points to another document - <draft-ietf-rats-reference-interaction-models>, which again stays at an abstract level and doesn't attempt to define a solution that is interoperable. Who is going to standardize this protocol or these protocols? Ciao Hannes
- [Rats] Epochs Tschofenig, Hannes