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Minutes interim-2020-cose-06: Wed 16:00

Meeting Minutes CBOR Object Signing and Encryption (cose) WG
Date and time 2020-12-16 16:00
Title Minutes interim-2020-cose-06: Wed 16:00
State Active
Other versions markdown
Last updated 2020-12-25


COSE Virtual Interim

Connection details


  • Ivaylo Petrov
  • Matthew Miller
  • Francesca Palombini
  • Peter Yee
  • Göran Selander
  • John Preuß Mattsson
  • Jonathan Hammell
  • Laurence Lundblade
  • Carsten Bormann
  • Joel Höglund
  • Marco Tiloca
  • Russ Housley (minutes taker)
  • Ben Kaduk
  • Michael Richardson

Action Items

  • [Ivaylo]: Add pointer to GitHub examples to the x509 draft.
  • [Ivaylo]: x509 COSE_Countersignature and CBOR Certificates question from reviews to be posted on the ML
  • [Chairs]: Start WG Last Call on draft-ietf-cose-countersign.
  • [Göran Selander] to make PR for re-charter edits.
  • [MKR]: DevID certificate example (discussed also DTLS) - expected mid January
  • [Chairs]: Conditional on recharter, make call for adoption now for draft-mattsson-cose-cbor-cert-compress


1. Administrivia (Chairs)

2. Update on drafts status and charter (Chairs)

  • hash-algs
    • Making slow progress.
  • rfc8152bis-algs
  • rfc8152bis-struct
  • x509

    • Making it standard track document
    • From Ben's review: Should we do anything about COSE_Countersignature? Will raise on mail list.
    • From Ben's review: x5u should be in protected headers. To align with JWS, is guidance needed about placing x5bag, x5chain, x5t in protected vs. unprotected headers? Will raise on mail list.
    • Adding a normative reference to RFC 8152.
    • Anything about CBOR Certificates? Will raise on mail list.
    • Jonathan added some examples to the GitHub repo. Ivaylo will review and may add pointer to Examples repo back to the I-D.
  • Countersign

    • Added more examples. Thanks Jonathan.
    • Jonathan added these examples as well as additional ones to the GitHub repo.
    • Please verify the examples.
    • Ready for WG Last Call.
  • rechartering
    • Göran Selander will make PR for edits.

3. CBOR Certificates (John Mattsson)

  • draft-mattsson-cose-cbor-cert-compress-05
  • Reviewed changes from -03 to -05.
    • Carsten: s/positive/unsigned/
  • Plans for -06
    • Add pointers to other profiles.
    • DevID certificate example.
    • Change compression algorithm.
    • Change approach to a large table, making it very clear how parameters are handled.
    • At a cost of 2 or 3 bytes, the use of .cborseq will allow access to subparts. Will open a GitHub issue.
  • Conditional on recharter, make call for adoption now

4. AOB