[Openid-specs-digital-credentials-protocols] 14/05/2024 DCP call meeting notes

[BAHLOUL Sebastien]

Notes from DCP Call 14th of May 2024


Participants:

  *   Brian Campbell
  *   Christian Bormann
  *   Daniel Buchner
  *   Gabe
  *   Joseph Heenan
  *   Kristina Yasuda
  *   Michael Jones
  *   Nander Stabel
  *   Oliver Terbu
  *   Paul Bastian
  *   Sebastien Bahloul
  *   Sudesha Shetty
  *   Tobias Looker





Topics:

  1.  IPR reminder
  2.  Introductions/re-introductions

     *   Nander Stabel (Improve technologies - German startup)

  1.  Agenda bashing/adoption
  2.  Events/External orgs

     *   Identiverse in-person
     *   Cancelling calls during Identiverse/EIC?

  1.  OpenID4VCI:

     *   Paul: after merging terminology PR, update on the terminology and rework the credentials proofs structure (PR 293)
     *   Orie / Tobias / Joseph : discussion on use of media types / request types

  1.  WICG moving W3C FedID WG (https://www.w3.org/groups/wg/fedid/),

     *   4 representatives from OIDF as invited experts
     *   3 places for DCP chairs (Kristina, Joseph and Torsten), 1 free
     *   If you are interested in joining and your company is not a member of W3C, please contact the DCP WG chairs

  1.  OpenID4VP Implementers Drafts discussion:

     *   Question: Is it preferable to move from ID1 to ID2 or wait for ID3 ?
     *   ID3: pushed until a couple of topics are closed: query language, browser API with wallet metadata negotiation, client_id scheme security issue (potential breaking change), normative annex of SD-JWT
     *   From Kristina: ID3 probably not anytime soon
     *   ID2 can still be used and is the version used by the conformance tests

  1.  VP: Transaction data: https://github.com/openid/OpenID4VP/issues/156

     *   Discussion on the format in the request to ensure:

        *   Stability (base64url encoded string +/ hash)
        *   Non-repudiation

     *   Discussion on if and how to include it in the response (hash vs base64url string)
     *   How to handle transaction data (#168) ?

        *   Discussion but no agreement on whether it should be a new credential format
        *   Influence from the EU QTSP
        *   Request to discuss/review with experts on the payment/signature fields

     *   Decision: split the topic into different issues (#168, #172, #173 and #174)



Best regards,

Sebastien

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