Meeting agenda is at https://datatracker.ietf.org/meeting/agenda/. Video URL is http://www.meetecho.com/ietf100/lamps/.
The IETF LAMPS group will be discussing a revision of the CAA specification this evening (morning Singapore time). Hopefully this will codify the tweaks to CAA we wound up adopting into the Baseline Requirements. However, there is also a proposal on the table to add a new method of looking up CAA by using TXT records on an underscored prefix of domain names. That is _ caa.www.example.com, _caa.example.com, etc. Advantage: this makes it easier for domain owners to express policies different from their hosting provider / CDN. Disadvantage: For backwards compatibility reasons, this would double the number of DNS lookups required per certificate. It's easy to participate at IETF. There is no membership requirement, and you can dial in by video even if you've never participated before (there will be a short prompt to register for the meeting). This working group in particular would benefit a lot from participation by affected CAs. If you can't make it to this meeting, you can join the mailing list at https://www.ietf.org/mailman/listinfo/spasm.
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