[Openid-dcp] DCP WG APAC 20th November 2025 Meeting Notes

[Stefan Charsley]

DCP WG APAC 20th November 2025
Attendees

Valentine Mazurov

Kenichi Nakamura

Hiroyuki Sano

Joseph Heenan

Stefan Charsley

Andres Olave

Updates

ISO interop event in NZ 16/17th November, tested HAIP with/without DC API
and mdocs, not everyone had fully implemented HAIP 1.0

OpenID interop event had high success rates

ISO working group meeting ongoing this week. some discussion on how to
better collaborate between ISO WG and DCP WG

DCP meetings next week likely to be canceled since large number of people
on holiday

HAIP public review completing 8th Dec

Doodle poll for figuring out new times for WG meetings to reduce meetings
down to 2 per week https://doodle.com/group-poll/participate/eEQkzpWe

HAIP

Make A128GCM and A256GCM mandatory for the verifier, make either mandatory
for the wallet #343 <https://github.com/openid/OpenID4VC-HAIP/pull/343>

   -

   Add comments if any or approvals


Make clear that digital sig section applies to jwt proof type too #346
<https://github.com/openid/OpenID4VC-HAIP/pull/346>

   -

   Add comments if any or approvals


Replace 'Annex' with 'Appendix' when referring to OIDF documents #347
<https://github.com/openid/OpenID4VC-HAIP/pull/347>

   -

   More approvals needed


Capitalise ecosystem #349
<https://github.com/openid/OpenID4VC-HAIP/pull/349>

   -

   More approvals needed


Add the multi-signed option to the dc api section #350
<https://github.com/openid/OpenID4VC-HAIP/pull/350>

   -

   Add comments if any or approvals


add compatibility note about pre-final specifications #299
<https://github.com/openid/OpenID4VC-HAIP/issues/299>

   -

   Stefan: I prefer version 14, it’s least likely to have breaking changes
   between 14 and final
   -

   Andres: agreed
   -

   Kenichi: agreed
   -

   Valentine: agreed


General

   -

   Kenichi: how is the hpke work going?
   -

   Joseph: there isn’t currently a way to do hpke in VP. there’s two
   possible options, option 1 - new response mode (see VP#676
   <https://github.com/openid/OpenID4VP/issues/676>), option 2 - there is a
   IETF spec to use hpke with JWE, unfortunately not finished yet, already
   been waiting for about 18 months and still has a non-insignificant amount
   of work to be done. Need to decide as a working group what to recommend,
   some feedback of preference not to wait for IETF. please provide feedback
   -

   Kenichi: I prefer to use session transcript for hpke approach



   -

   Stefan: if people could please take a look at HAIP#348
   <https://github.com/openid/OpenID4VC-HAIP/issues/348> and decide/comment
   if anything needs to be done/clarified
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