<div dir="ltr"><p style="box-sizing:border-box;color:rgb(31,35,40);font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;margin-top:0px">Hi All,</p><p style="box-sizing:border-box;color:rgb(31,35,40);font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;margin-top:0px">I wanted to follow up on the client_id/origin discussion we had today.</p><p dir="auto" style="box-sizing:border-box;color:rgb(31,35,40);font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;margin-top:0px">We don't have another DCP WG mtg before ISO virtual mtg next week. So having heard DCP WG discussion and having re-read ISO requirement, what I would like to offer as a way forward is <strong style="box-sizing:border-box">to explain at the ISO virtual mtg that ISO requirement of “mdoc authentication must be bound to the origin” is being addressed not by including origin in the session transcript but by the following:</strong></p><p dir="auto" style="box-sizing:border-box;color:rgb(31,35,40);font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;margin-top:0px"><span style="color:rgb(34,34,34)">what prevents MITM/replay of the request RP sent through the DC API:</span></p><blockquote style="box-sizing:border-box;margin:0px;padding:0px 1em;font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px"><ul dir="auto" style="box-sizing:border-box;padding:0px;margin-top:0px;margin-bottom:0px"><li style="box-sizing:border-box">for unsigned requests, origin is in the returned credential because origin == client_id, and client_id is in the session transcript of mdoc and `aud` of sd-jwt vc</li><li style="box-sizing:border-box;margin-top:0.25em">for signed request, expected_origins is in the signed request so if the wallet can identify if there is MITM/replay because origin from the platform will not match expected_origins in the signed request (MITM cannot modify content of the signed request)</li></ul></blockquote><strong style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40);box-sizing:border-box"><div><strong style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40);box-sizing:border-box"><br></strong></div></strong><span style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40)">If this gets accepted, <b>we could remove origin from session transcript</b>, and conclude this discussion we have been having. </span><div><span style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40)"><br></span></div><div><span style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40)">I also put this in the <a href="https://github.com/openid/OpenID4VP/pull/308#issuecomment-2610907352">issue comment</a>. Please respond if you strongly disagree.</span></div><div><span style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40)"><br></span></div><div><span style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40)">Best,</span></div><div><span style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40)">Kristina</span></div><div><span style="font-family:-apple-system,"system-ui","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;color:rgb(31,35,40)"><br></span></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Jan 23, 2025 at 8:36 PM Jan Vereecken via Openid-specs-digital-credentials-protocols <<a href="mailto:openid-specs-digital-credentials-protocols@lists.openid.net">openid-specs-digital-credentials-protocols@lists.openid.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg6492180449908603306">




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Hi All,</div>
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Please find the meeting minutes below</div>
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Participants</li><ul>
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Kristina Yasuda</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Christian Borrmann</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Steve Venema</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Daniel Fett</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Jin Wen</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Andreea Prian</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Andy Lim</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Bjorn Hjelm</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Brian Campbell</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Daniel Fett</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Juda Saadi</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Paul Bastian</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Torsten Lodderstedt</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Gareth Oliver</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Lukasz Jaromin</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Oliver Terbu</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Pedro Felix</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Rajvardhan Deshmukh</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Tim Cappalli</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Nemanja Patrnogic</li></ul>
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Agenda</li><ul>
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Please register to the Hybrid meeting before OSW! <a href="https://www.eventbrite.co.uk/e/oidf-dcp-wg-hybrid-meeting-prior-to-osw-2025-tickets-1146184230889" target="_blank">https://www.eventbrite.co.uk/e/oidf-dcp-wg-hybrid-meeting-prior-to-osw-2025-tickets-1146184230889</a></li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<a href="https://openid.net/public-review-period-for-proposed-second-implementers-draft-of-openid-for-verifiable-credential-issuance/" id="m_-2438736395480547975OWA9cd3df5f-bc49-6d11-b000-ab56b405f5dd" target="_blank">https://openid.net/public-review-period-for-proposed-second-implementers-draft-of-openid-for-verifiable-credential-issuance/</a>
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OID4VP / HAIP: Topics we need to tackle before ISO's virtual meeting in the last week of january (they are labelled ISO_VirtualMeeting):</li><ul>
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discuss "If the RP sends a request with multiple client identifiers for one or more mdocs, how is it supposed to figure out which client identifier to use for checking the session transcript in the respective device response?":
<a href="https://github.com/openid/OpenID4VP/pull/308" id="m_-2438736395480547975OWA85138892-bcc4-edc8-ca4c-bcf3ccbfb572" target="_blank">
https://github.com/openid/OpenID4VP/pull/308</a></li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
how the request looks like for "returning multiple credentials for one DCQL query":
<a href="https://github.com/openid/OpenID4VP/issues/298" id="m_-2438736395480547975OWA8f5277ec-cdca-91cd-812c-8538ec23273a" target="_blank">
https://github.com/openid/OpenID4VP/issues/298</a>
<div style="margin-top:1em;margin-bottom:1em">[ideally would like to merge today] intent_to_retain PR:
<a href="https://github.com/openid/OpenID4VP/pull/338" id="m_-2438736395480547975OWA9e65c737-7f42-ca90-d50c-be2ebd523328" target="_blank">
https://github.com/openid/OpenID4VP/pull/338</a> - [ideally would like to merge today] DCQL mandatory in DC API
<a href="https://github.com/openid/oid4vc-haip/pull/151" id="m_-2438736395480547975OWA4868e92f-dbf4-94b8-22a4-9154f84441be" target="_blank">
https://github.com/openid/oid4vc-haip/pull/151</a></div>
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[editorial ideally would like to merge today] <a href="https://github.com/openid/oid4vc-haip/pull/153" id="m_-2438736395480547975OWA3725149e-56e3-0614-4c9b-1d2f3d32c822" target="_blank">
https://github.com/openid/oid4vc-haip/pull/153</a></li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
please review "Enable RP to convey the desired credential issuers to the Wallet" <a href="https://github.com/openid/OpenID4VP/pull/393" id="m_-2438736395480547975OWA8dcd252c-cb8d-ccf8-0cf1-b4e0a6278192" target="_blank">
https://github.com/openid/OpenID4VP/pull/393</a></li></ul>
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please review priority PRs for OpenID4VP: <a href="https://github.com/openid/OpenID4VP/pulls?q=is%3Aopen+is%3Apr+milestone%3A%22Final+1.0%22" id="m_-2438736395480547975OWA075f81dc-cfde-4746-5b82-44ba88252f49" target="_blank">
https://github.com/openid/OpenID4VP/pulls?q=is%3Aopen+is%3Apr+milestone%3A%22Final+1.0%22</a></li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
please review priority issues for OpenID4VP 1.0 that do not have a resolution yet:
<a href="https://github.com/openid/OpenID4VP/issues?q=is%3Aissue%20state%3Aopen%20milestone%3A%22Final%201.0%22%20-label%3Ahas-PR%20-label%3Aready-for-PR%20" id="m_-2438736395480547975OWAd982364b-6356-3795-afac-13d520fc0f96" target="_blank">
https://github.com/openid/OpenID4VP/issues?q=is%3Aissue%20state%3Aopen%20milestone%3A%22Final%201.0%22%20-label%3Ahas-PR%20-label%3Aready-for-PR%20</a></li></ul>
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Notes</li><ul>
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<b>VP - PR338</b>: add intent to retain to claims query in DCQL</li><ul>
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Will be merged</li></ul>
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<b>HAIP - PR154</b>: remove pre-authz code</li><ul>
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Will be merged. Note: big change for implementors</li></ul>
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<b>HAIP - PR153</b>: Add Multi RP Credentials/Authentication capability</li><ul>
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Agreement to mandate x5c certificates</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Intention for a stable version to be published to support ISO interop event (registration ending end of January)</li></ul>
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<b>HAIP - PR151</b>: Mandate DCQL instead of PE; all DCQL features are mandatory</li><ul>
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Will be merged.</li></ul>
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<b>VP - PR308</b>: Add Multi RP Credentials/Authentication capability</li><ul>
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<div>2 question in the PR that deserve some discussion.</div>
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<i>Session transcript</i> </li><ul>
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Discussion on keeping the client identifier as an essential security feature for both signed and unsigned requests and different options to solve it in conjunction with the session transcript.</li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
No clear direction. Request for WG members to review the different options in the PR!</li></ul>
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<i>Response encryption</i>: not discussed during call</li></ul>
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<b>VP - PR393</b>: DCQL: express desired credential issuers</li><ul>
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Request for reviews</li></ul>
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<b>VP - 298</b>: Support for selecting multiple credentials via a single dcql</li><ul>
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Request for people to chime in.</li></ul>
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Have a nice day.</div>
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Regards,</div>
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Jan</div>
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<div dir="ltr" id="m_-2438736395480547975divRplyFwdMsg"><span style="font-family:Calibri,sans-serif;font-size:11pt;color:rgb(0,0,0)"><b>From:</b> Openid-specs-digital-credentials-protocols <<a href="mailto:openid-specs-digital-credentials-protocols-bounces@lists.openid.net" target="_blank">openid-specs-digital-credentials-protocols-bounces@lists.openid.net</a>> on behalf of
 Kristina Yasuda via Openid-specs-digital-credentials-protocols <<a href="mailto:openid-specs-digital-credentials-protocols@lists.openid.net" target="_blank">openid-specs-digital-credentials-protocols@lists.openid.net</a>><br>
<b>Sent:</b> Thursday, 23 January 2025 16:27<br>
<b>To:</b> Digital Credentials Protocols List <<a href="mailto:openid-specs-digital-credentials-protocols@lists.openid.net" target="_blank">openid-specs-digital-credentials-protocols@lists.openid.net</a>><br>
<b>Cc:</b> Kristina Yasuda <<a href="mailto:yasudakristina@gmail.com" target="_blank">yasudakristina@gmail.com</a>><br>
<b>Subject:</b> [Openid-specs-digital-credentials-protocols] [agenda] DCP WG + SIOP call</span>
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<div style="direction:ltr;font-family:"Helvetica Neue",sans-serif">Hi all,</div>
<div style="direction:ltr"><br>
<span style="font-family:"Helvetica Neue",sans-serif">Below is the suggested agenda for today's DCP WG + SIOP call today.</span></div>
<ol start="1" style="direction:ltr">
<li style="font-size:13px;direction:ltr"><span style="font-family:"Helvetica Neue",sans-serif">OIDF Antitrust Policy at
<a href="http://www.openid.net/antitrust" id="m_-2438736395480547975OWA0b809f20-df6f-e9d0-a45b-a178e24d80e0" target="_blank">
www.openid.net/antitrust</a> applies</span></li><li style="font-size:13px;direction:ltr"><span style="font-family:"Helvetica Neue",sans-serif">IPR reminder/ Note-taking</span></li><li style="font-size:13px;direction:ltr"><span style="font-family:"Helvetica Neue",sans-serif">Introductions/re-introductions</span></li><li style="font-size:13px;direction:ltr"><span style="font-family:"Helvetica Neue",sans-serif">Agenda bashing/adoption</span></li><li style="font-size:13px;direction:ltr"><span style="font-family:"Helvetica Neue",sans-serif">Events/External orgs</span></li><ol start="1" style="direction:ltr">
<li style="font-size:13px;direction:ltr"><span style="font-family:"Helvetica Neue",sans-serif">please register to the Hybrid meeting before OSW!
</span><a href="https://www.eventbrite.co.uk/e/oidf-dcp-wg-hybrid-meeting-prior-to-osw-2025-tickets-1146184230889" id="m_-2438736395480547975OWA8fbc1325-f97a-b9f0-9478-7bbe42798e96" target="_blank">https://www.eventbrite.co.uk/e/oidf-dcp-wg-hybrid-meeting-prior-to-osw-2025-tickets-1146184230889</a></li></ol>
<li style="direction:ltr">OpenID4VP specification adopted by DCP WG</li><li style="direction:ltr"><a href="https://openid.net/public-review-period-for-proposed-second-implementers-draft-of-openid-for-verifiable-credential-issuance/" id="m_-2438736395480547975OWA542bea8d-fca7-772a-5091-4a491c0c4185" target="_blank">Public
 Review Period for Proposed Second Implementer’s Draft of OpenID for Verifiable Credential Issuance Specification</a> ongoing</li><li style="font-size:13px;direction:ltr"><span style="font-family:"Helvetica Neue",sans-serif">OID4VP / HAIP: Topics we need to tackle before ISO's virtual meeting in the last week of january (they are labelled ISO_VirtualMeeting):</span></li><ul style="direction:ltr">
<li style="direction:ltr">discuss "If the RP sends a request with multiple client identifiers for one or more mdocs, how is it supposed to figure out which client identifier to use for checking the session transcript in the respective device response?":
<a href="https://github.com/openid/OpenID4VP/pull/308" id="m_-2438736395480547975OWA7d4b0460-86fe-725e-1a5e-bcb41663c890" target="_blank">
https://github.com/openid/OpenID4VP/pull/308</a></li><li style="direction:ltr">how the request looks like for "returning multiple credentials for one DCQL query":
<a href="https://github.com/openid/OpenID4VP/issues/298" id="m_-2438736395480547975OWA39b0a332-30ed-5535-a157-463d326c0d84" target="_blank">
https://github.com/openid/OpenID4VP/issues/298</a><br>
</li></ul>
</ol>
<div style="direction:ltr">[ideally would like to merge today] intent_to_retain PR:
<a href="https://github.com/openid/OpenID4VP/pull/338" id="m_-2438736395480547975OWAe809b148-6294-ea86-fb61-9b5407c3024f" target="_blank">
https://github.com/openid/OpenID4VP/pull/338</a></div>
<ol start="9" style="direction:ltr">
<ul style="direction:ltr">
<li style="direction:ltr">[ideally would like to merge today] DCQL mandatory in DC API
<a href="https://github.com/openid/oid4vc-haip/pull/151" id="m_-2438736395480547975OWA41a0218f-9325-986d-bee0-2c2d2eb59a52" target="_blank">
https://github.com/openid/oid4vc-haip/pull/151</a></li><li style="direction:ltr">[editorial ideally would like to merge today] <a href="https://github.com/openid/oid4vc-haip/pull/153" id="m_-2438736395480547975OWAd59019c6-12f4-d717-56b9-56f77666062c" target="_blank">
https://github.com/openid/oid4vc-haip/pull/153</a></li><li style="direction:ltr">please review "Enable RP to convey the desired credential issuers to the Wallet"
<a href="https://github.com/openid/OpenID4VP/pull/393" id="m_-2438736395480547975OWA8fde2120-2cc8-af8b-fa34-dff1789fa888" target="_blank">
https://github.com/openid/OpenID4VP/pull/393</a></li></ul>
<li style="direction:ltr">please review priority PRs for OpenID4VP: <a href="https://github.com/openid/OpenID4VP/pulls?q=is%3Aopen+is%3Apr+milestone%3A%22Final+1.0%22" id="m_-2438736395480547975OWAcbe9caf6-2181-16f5-0060-3ad74b828b36" target="_blank">
https://github.com/openid/OpenID4VP/pulls?q=is%3Aopen+is%3Apr+milestone%3A%22Final+1.0%22</a></li><li style="direction:ltr">please review priority issues for OpenID4VP 1.0 that do not have a resolution yet:
<a href="https://github.com/openid/OpenID4VP/issues?q=is%3Aissue%20state%3Aopen%20milestone%3A%22Final%201.0%22%20-label%3Ahas-PR%20-label%3Aready-for-PR%20" id="m_-2438736395480547975OWA39cf15a0-9109-094c-2dcb-7dc64807761b" target="_blank">
https://github.com/openid/OpenID4VP/issues?q=is%3Aissue%20state%3Aopen%20milestone%3A%22Final%201.0%22%20-label%3Ahas-PR%20-label%3Aready-for-PR%20</a></li></ol>
<div style="direction:ltr">Thank you!</div>
<div style="direction:ltr">Kristina</div>
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