Session Date/Time: 07 Nov 2023 14:30

cbor

Summary

This meeting covered the status of several CBOR-related drafts, including EDN Literals, Update 8610 Grammar, Aktivo/CBOR Pack, and a DNS over CBOR format. The deterministic CBOR (DCBOR) effort was discussed, focusing on a common deterministic encoding profile. Decisions were made to extend the working group last call for EDN Literals and Update 8610 Grammar, and to start a call for adoption of the common deterministic encoding profile.

Key Discussion Points

EDN Literals and Update 8610 Grammar: A working group last call was extended for one week to gather more feedback on both documents. There was a call for simplified feedback.
Aktivo/CBOR Pack: Discussion revolved around reference tables, shared items, argument items, and function tags within the CBOR Pack specification. Table building was identified as a potentially application-specific area for innovation. The difficulties of using maps in combination with incremental table building were discussed.
DNS over CBOR: The presentation covered a concise CBOR-based DNS message format, including omitting DNS fields for efficiency and utilizing name compression. Two name compression strategies were presented: component referencing and a lighter version of CBOR Pack. There was debate as to whether to use pack, or to use the implicit table structure that is already familiar.
Deterministic CBOR (DCBOR): There are two documents relating to deterministic Cbor that need to be merged. One from Karsten, and one from Wolf. The discussion centered around the need for a common deterministic encoding profile for CBOR, specifically whether 2 should be treated the same as 2.0. The group expressed support for adopting a common profile, with a decision on BCP versus Standards Track to be determined later.

Decisions and Action Items

Action Item: Extend the working group last call for EDN Literals and Update 8610 Grammar for one week.
Decision: Start a call for adoption of the common deterministic encoding profile for CBOR on the mailing list.
Action Item: Karsten and Wolf to collaborate on merging their DCBOR documents into one.
Action Item: Investigate the potential of adding a slicing reference to CBOR Pack.
Action Item: Discuss the issue of query counts greater than 1 in DNS, as raised by Donald Eastlake, offline.

Next Steps

Gather feedback on EDN Literals and Update 8610 Grammar during the extended working group last call.
Begin the call for adoption of the common deterministic encoding profile.
Karsten and Wolf to merge their documents on DCBOR.
Continued discussion and development of Aktivo/CBOR Pack, addressing outstanding merits and potential benchmarks.
Evaluate the two DNS/CBOR name compression approaches and make a decision on which direction to pursue.