[Rats] Re: I-D Action: draft-ietf-rats-epoch-markers-04.txt

[Thomas Fossati <[e-mail]>]

Hi, all,

This version includes the following:
1. Clarifications around Epoch ID validation and acceptance policy
2. A new compact, EAT nonce-compatible Epoch ID, called "epoclet"
3. Some IANA adjustments

This is not ready yet for working group last call, but we are
approaching that stage.
The plan is to resolve the few remaining issues and cut a version that
can undergo WGLC, ideally before Vienna.

cheers!

On Mon, 18 May 2026 at 16:28, <[e-mail]> wrote:
>
> Internet-Draft draft-ietf-rats-epoch-markers-04.txt is now available. It is a
> work item of the Remote ATtestation ProcedureS (RATS) WG of the IETF.
>
>    Title:   Epoch Markers
>    Authors: Henk Birkholz
>             Thomas Fossati
>             Wei Pan
>             Ionuț Mihalcea
>             Carsten Bormann
>    Name:    draft-ietf-rats-epoch-markers-04.txt
>    Pages:   29
>    Dates:   2026-05-18
>
> Abstract:
>
>    This document defines Epoch Markers as a means to establish a notion
>    of freshness among actors in a distributed system.  Epoch Markers are
>    similar to "time ticks" and are produced and distributed by a
>    dedicated system known as the Epoch Bell.  Systems receiving Epoch
>    Markers do not need to track freshness using their own understanding
>    of time (e.g., via a local real-time clock).  Instead, the reception
>    of a specific Epoch Marker establishes a new epoch that is shared
>    among all recipients.  This document defines Epoch Marker types,
>    including CBOR time tags, RFC 3161 TimeStampToken, and nonce-like
>    structures.  It also defines a CWT Claim to embed Epoch Markers in
>    RFC 8392 CBOR Web Tokens, which serve as vehicles for signed protocol
>    messages.
>
> The IETF datatracker status page for this Internet-Draft is:
> https://datatracker.ietf.org/doc/draft-ietf-rats-epoch-markers/
>
> There is also an HTML version available at:
> https://www.ietf.org/archive/id/draft-ietf-rats-epoch-markers-04.html
>
> A diff from the previous version is available at:
> https://author-tools.ietf.org/iddiff?url2=draft-ietf-rats-epoch-markers-04
>
> Internet-Drafts are also available by rsync at:
> rsync.ietf.org::internet-drafts
>
>
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