Minutes IETF108: cbor
minutes-108-cbor-02

# CBOR WG Meeting - IETF 108
Monday, July 27, 2020 13:00-13:50 UTC
Chairs: Francesca Palombini, Jim Schaad

Jabber Logs: https://www.ietf.org/jabber/logs/cbor/2020-07-27.html

Recordings: https://www.youtube.com/watch?v=AYadrd3mdz8

Minute takers: MCR

Agenda:

Should we have interims until 2021?
No: we should stop at IETF109, and we will not meet in December, and resume in
January.

## 7049bis - AD (2 min) ##
* https://tools.ietf.org/html/draft-ietf-cbor-7049bis-14

- In IETF last call until mid August

## CBOR Date Tag - chairs (2 min) ##
* https://tools.ietf.org/html/draft-ietf-cbor-date-tag-05

- In IETF last call until mid August
- Discussion in jabber about replacing John Lennon with: Jim Morrison, Jon
Postel.

## CDDL Updates - CB ##
### Additional Controls for CDDL (draft-bormann-cbor-cddl-control-01)
- [JS] Should go ahead and do an adoption call (chair)
- [FP] Need to check if we need to do a single v2.0 document or if doing pieces.

## Issue # 204 in the CBOR Bis Document

surjective request, not satisfied by Not-A-Number (NaN), and (_).

[MCR]  Remove all from 7940 bis?
[CB] No just have a third document
[JS] I am not sure that I see the benefits of making this complete done
[FP from floor] Can we get this to do CBOR sequences as well?
[Mohit] why not in rfc7049bis?
[CB] Not in the bis because it would delay that document.  Also need to take
time to be careful on this.

## CBOR Tags for OID - CB (10 min) ##
* https://tools.ietf.org/html/draft-bormann-cbor-tags-oid-07

[FP] Chairs - adoption call ended yesterday and the adoption succeeded.

## Packed CBOR - CB ##
* https://tools.ietf.org/html/draft-bormann-cbor-packed-00

slide 6 includes numbers on JSON/CBOR/Deflate/CBOR Packed.

[MCR] Need more information on the rump part.  Seems to be better to put at the
end of the array for stream processing. [CB] May need to make comments in
similar nature about shared items in the extracted pieces [HB] I think this is
necessary work.  May want to include this with tagging in the CDDL. Packing of
URIs alone might be worth it. [Brendan Moran] Basically invented this for SUIT
already.  Two nested lists can cause problems with pull parsers.  Minimize the
size of references into the list.  New simple types that might be used? [Robert
Wilton] How can we be sure that existing implementations are going to be able
to handle this.  Don't want to have two spaces [CB] Similar to other tags. 
Generic decode will present packed CBOR as CBOR to the application. [Chris
Lemmons] Supports this as well. Has prevented adoption in two other standards
that I have been working in.  Need a compacted/compressed version for URIs as
well.  Also would like to see external dictionaries as well. [FP] Hearing lots
of support for the document.  Need to see some more work on the document before
adoption call. [CB] Need to publish implementation so people can play with this
more.  Please add comments for the document before next version is published.
[FP] Is there a timeline where this is needed? [BM] Manifest is almost done and
probably too late for that [HB] Would have been nice for for something that
just moved to IESG [CB] Can always use this for existing documents at any point
in the future if you have not already done this.

[JY] WebPackaging probably has time to use packed CBOR
[CB] what's the timeline for that?
[JY] probably years.

## Notable Tags - CB ##
* https://tools.ietf.org/html/draft-bormann-cbor-notable-tags-01

*[JS]: Jim Schaad
*[MCR]: Michael Richardson
*[FP]: Francesca Palombini
*[CB]: Carsten Bormann
*[MJ]: Mike Jones
*[BL]: Barry Leiba
*[HB]: Henk Birkholz
*[JY]: Jeffrey Yasskin