[Openid-dcp] [notes] DCP WG + SIOP Call (EU) 10th of June

torsten at lodderstedt.net torsten at lodderstedt.net
Tue Jun 10 20:23:43 UTC 2025


Hi,

below are the meeting minutes from the working group call June 5th.

best regards,
Torsten.

--- Attendees:

Andres Olave
Bjorn Hjelm
Brian Campbell
Christian Bormann
David Zeuthen (Google)
Gail Hodges
George Fletcher
Hicham
Joseph Heenan (OIDF & Authlete)
Kristina Yasuda
Lee Campbell
Lenah Chacha
Lukasz Jaromin
Martijn
Mastercard: robert gallagher
Michael Jones
Oliver Terbu
Paul Bastian
Peter Sorotokin
Rajvardhan Deshmukh (Cisco)
Ryan Galluzzo, NIST ACD
Tim Cappalli
Tobias Looker (MATTR)
Torsten Lodderstedt
Victor Lu

--- Events/Updates

Kristina explained OpenID4VP publication timeline

• 10.6: Voting announcement (conditional WG decision on -29) by the co-chairs
• 24.6
    • Public has started on draft -27
    • Changes were applied based on the review feedback, so we cut -28 and -29
    • Decision to base the voting on draft -29
    • start voting period (14 days)
• 8.7 Voting finishes, OpenID4VP is published


--- Issues/PRs:

OpenID4VP

• PR 509 (Privacy Considerations) - merged

OpenID4VCI

• PR 520
    • signed issuer metadata - not mandatory to implement in VCI
• Issue 461
    • Clarification: it’s not about protection but use of access tokens as session identifiers to be able to efficiently manage large numbers of nonces in shards

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