[Openid-dcp] DCP WG APAC 22nd May 2025 Meeting Notes

[Stefan Charsley]

DCP WG APAC 22nd May 2025
Attendees:

Joseph Heenan

Stefan Charsley

Klaus Roehrle

Thomas Darimont

Andres Olave

Kenichi Nakamura

Henry Hang

Gail Hodges


Updates:

Update on ISO from Joseph

   -

   Feeling is that ISO spec should be pushed out a few months to figure out
   what their requirements are
   -

   Has meeting scheduled 11th june



Spec status updates from Joseph

   -

   OpenID4VP in public review
   -

   Still some PRs left to merge
   -

   OpenID4VCI still has work to be done before WGLC
   -

   HAIP hopes to be in public review by next month



Kenichi:

   -

   point raised that ISO does not understand what HAIP means.
   -

   group would rather clarify requirements from ISO WG4 around batch
   issuance, draft 23220.
   -

   can send draft to group.


Discussing OpenID4VCI

Integrity of the JWK used for Credential Response encryption #507
<https://github.com/openid/OpenID4VCI/issues/507>:

   -

   No comments



Encrypted responses in Batch and Deferred Endpoints #286
<https://github.com/openid/OpenID4VCI/issues/286>:

   -

   Joseph: missing discussion not recorded in issue, looked at generating
   new keys on every check


   -

   Stefan: needing to generate new keys every time could add complexity,
   should keep it as simple as possible



Clarification on use of 'format' claim in authorization_details #275
<https://github.com/openid/OpenID4VCI/issues/275>:

   -

   Andres: has a use case where they want possible configurations published
   by the ecosystem rather than the issuer



Redirect-URI for OpenID4VCI #61
<https://github.com/openid/OpenID4VCI/issues/61>:

   -

   No comments



Presentation during Issuance #473
<https://github.com/openid/OpenID4VCI/issues/473>:

   -

   Stefan: encountered a similar issue working with an issuer, issuer ended
   up implementing a custom endpoint for sending information directly before
   triggering VCI flow. will take a look and review related PR #509



Align claims path query for ISO mdocs with JSON-based credentials #513
<https://github.com/openid/OpenID4VCI/pull/513>:

   -

   No comments



decouple credential metadata #500
<https://github.com/openid/OpenID4VCI/pull/500>:

   -

   Stefan: have implementation experience of only providing metadata
   through VCT endpoints, also working with an issuer that does not provide
   metadata through VCI metadata, only VCT metadata. will take a look and
   review PR



Add support for the Digital Credentials API #476
<https://github.com/openid/OpenID4VCI/pull/476>:

   -

   No comments



Interop Events:

Gail: I just want to direct the WG attention to the interop events to come
on 5/27 OID4VCI and 6/17 OID4VP that were announced with registration on
slack #openid4vci and #openid4vp-browser-api-feedback.

Targeting ID2 for OpenID4VCI, Draft 28 for OpenID4VP.

OpenID4VP interop event will also support non-DC API.

Target dates for conformance test availability to be announced by Joseph in
mailing list + slack channel.


Discussing issues for OpenID4VP

Add encryption details parameter #597
<https://github.com/openid/OpenID4VP/pull/597>:

   -

   No comments



Add session transcript for redirect-based oid4vp flow #610
<https://github.com/openid/OpenID4VP/pull/610>:

   -

   No comments



Add privacy considerations #509
<https://github.com/openid/OpenID4VP/pull/509>:

   -

   Stefan: already added some comments to PR, no new comments
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