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Hi All,</div>
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Please find the meeting notes in attachment. Would be good if someone can specifically check if I captured the RAR extensibility conversation correctly. Thanks.</div>
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Kind regards,</div>
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Jan</div>
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# DCP WG 2024/09/26</div>
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## Participants</div>
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- Joseph Heenan</div>
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- Bjorn Hjelm</div>
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- Brian Campbell</div>
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- Christian Bormann</div>
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- Kristina Yasuda</div>
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- Daniel Fett</div>
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- David Chadwich</div>
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- Hicham Lozi</div>
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- Javier Ruiz</div>
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- Jin Wen</div>
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- Juba Saadi</div>
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- Judith Kahrer</div>
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- Michael Jones</div>
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- Nemanja Patrnogic</div>
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- Paul Bastian</div>
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- Pedro Felix</div>
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- Rajvardhan Deshmukh</div>
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- Jan Vereecken</div>
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- Paul Bastian</div>
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## Agenda</div>
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- OIDF Antitrust Policy at www.openid.net/antitrust applies</div>
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- IPR reminder/ Note-taking</div>
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- Introductions/re-introductions</div>
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- Agenda bashing/adoption</div>
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- Events/External orgs</div>
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- TPAC</div>
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- Members please vote on ekyc specs: https://openid.net/vote-final-identity-assurance-specifications/</div>
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- 1.0 PRs</div>
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- VP: client_id_scheme change to prefix ( https://github.com/openid/OpenID4VP/issues/124 ) - planning to merge next week</div>
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- VP: Allow alternative query languages: https://github.com/openid/OpenID4VP/pull/258 - discuss latest comments</div>
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- VP: Remove normative dependency on Browser API: https://github.com/openid/OpenID4VP/pull/254</div>
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- VCI: add an option to use credential_configuration_id in credential request https://github.com/openid/OpenID4VCI/pull/392 - replacing the format version, planning to merge next week </div>
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- VCI: Credential response extensibility: https://github.com/openid/OpenID4VCI/pull/391 t</div>
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- VCI: Key attestations https://github.com/openid/OpenID4VP/pull/258</div>
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- VCI: c_nonce PR: https://github.com/openid/OpenID4VCI/pull/381#pullrequestreview-2292605172 - Torsten’s request changes</div>
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- VCI: RAR extensibility: https://github.com/openid/OpenID4VCI/pull/382 - latest language on RAR</div>
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- Other PRs</div>
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- VP: client_metadata https://github.com/openid/OpenID4VP/pull/233 - Oliver’s suggestion</div>
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- VP: Add additional request examples: https://github.com/openid/OpenID4VP/pull/218 - needs reviews</div>
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- VCI: Clarify credential offer endpoint https://github.com/openid/OpenID4VCI/pull/380 - needs reviews</div>
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- Timelines for OID4VP 1.1</div>
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- Query language - proceed with attempt 3 PR? https://github.com/openid/OpenID4VP/pull/266</div>
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- How can verifiers that support multiple trust models/ecosystems know how to authenticate to the wallet? https://github.com/openid/OpenID4VP/issues/248</div>
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## Notes</div>
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### Voting on eKYC. </div>
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Request for everyone to vote. Voting “abstain” still counts towards quorum (which has not been reached)</div>
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### VP: client_id_scheme change to prefix</div>
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Daniel to update text based on Brain’s comments to accommodate Browser API concerns. Intention to merge next week Tuesday</div>
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### VP: Allow alternative query languages</div>
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Kristina brings up that language around vp_token in response is not clear atm.</div>
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Brian asks if vp_token structure will change or if there will be a separate parameter.</div>
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Joseph points out in new query language proposal (#178) that vp_token remains, but structure will likely change.</div>
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WG agrees on the direction outlined in the issue.</div>
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### VP: Remove normative dependency on Browser API</div>
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Spec can’t have normative dependency on a non-published spec.</div>
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Joseph brings up that he’s still keen on keeping examples, but limiting it to OpenID4VP parameters and not include Browser API params</div>
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Kristina agrees with Joseph and suggest language to change it</div>
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David brings up who decides the names of the OpenID4VP parameters and where that is defined.</div>
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Brian thinks OpenID4VP parameters should be defined by the DCP WG. </div>
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### VCI: add an option to use credential_configuration_id in credential request</div>
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Kristina proposes to close this PR to keep it simpler for ecosystems. Will add comments to the PR.</div>
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### VCI: Credential response extensibility</div>
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Request to Oliver to review so it can be merged.</div>
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### VCI: Key attestations</div>
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Paul has updated this PR</div>
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### VCI: RAR extensibility</div>
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Kristina mentions that Torsten is still reviewing.</div>
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Kristina and Mike have a discussion on if this breaks RAR.</div>
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Brian adds that by defining type, RAR is not broken in his opinion.</div>
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The goal is to allow an extensibility point that allows both breaking and non-breaking changes. Breaking change would be achieved by defining a different `type`. Non-breaking changes could be added to the existing type and and ignored by wallets.</div>
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### VCI: c_nonce PR</div>
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Brian comments that POST request for nonce is not a good idea.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Openid-specs-digital-credentials-protocols <openid-specs-digital-credentials-protocols-bounces@lists.openid.net> on behalf of Joseph Heenan
via Openid-specs-digital-credentials-protocols <openid-specs-digital-credentials-protocols@lists.openid.net><br>
<b>Sent:</b> Thursday, 26 September 2024 16:16<br>
<b>To:</b> Digital Credentials Protocols List <openid-specs-digital-credentials-protocols@lists.openid.net><br>
<b>Cc:</b> Joseph Heenan <joseph@authlete.com><br>
<b>Subject:</b> [Openid-specs-digital-credentials-protocols] [agenda] DCP WG + SIOP call (PST 8am)</font>
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<div dir="ltr" class="x_gmail_attr">Hi All,<br>
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<div>Below is the suggested agenda for today's DCP WG + SIOP call at 08:00AM PT: <a href="https://zoom.us/j/94085567252?pwd=cHNFMExFalhlM2MrOFhoN3J6eDRuZz09" target="_blank">https://zoom.us/j/94085567252?pwd=cHNFMExFalhlM2MrOFhoN3J6eDRuZz09</a></div>
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OIDF Antitrust Policy at <a href="http://www.openid.net/antitrust">www.openid.net/antitrust</a> applies</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
IPR reminder/ Note-taking</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
Introductions/re-introductions</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
Agenda bashing/adoption</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
Events/External orgs</li><ol>
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TPAC</li></ol>
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Members please vote on ekyc specs: <a href="https://openid.net/vote-final-identity-assurance-specifications/">
https://openid.net/vote-final-identity-assurance-specifications/</a></li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
1.0 PRs</li><ol>
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VP: client_id_scheme change to prefix ( <a href="https://github.com/openid/OpenID4VP/issues/124">
https://github.com/openid/OpenID4VP/issues/124</a> ) - planning to merge next week</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VP: Allow alternative query languages: <a href="https://github.com/openid/OpenID4VP/pull/258">
https://github.com/openid/OpenID4VP/pull/258</a> - discuss latest comments</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VP: Remove normative dependency on Browser API: <a href="https://github.com/openid/OpenID4VP/pull/254">
https://github.com/openid/OpenID4VP/pull/254</a></li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VCI: add an option to use credential_configuration_id in credential request <a href="https://github.com/openid/OpenID4VCI/pull/392">
https://github.com/openid/OpenID4VCI/pull/392</a> - replacing the format version, planning to merge next week </li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VCI: Credential response extensibility: <a href="https://github.com/openid/OpenID4VCI/pull/391">
https://github.com/openid/OpenID4VCI/pull/391</a> t</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VCI: Key attestations <a href="https://github.com/openid/OpenID4VP/pull/258">https://github.com/openid/OpenID4VP/pull/258</a></li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VCI: c_nonce PR: <a href="https://github.com/openid/OpenID4VCI/pull/381#pullrequestreview-2292605172">
https://github.com/openid/OpenID4VCI/pull/381#pullrequestreview-2292605172</a> - Torsten’s request changes</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VCI: RAR extensibility: <a href="https://github.com/openid/OpenID4VCI/pull/382">
https://github.com/openid/OpenID4VCI/pull/382</a> - latest language on RAR</li></ol>
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Other PRs</li><ol>
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VP: client_metadata <a href="https://github.com/openid/OpenID4VP/pull/233">https://github.com/openid/OpenID4VP/pull/233</a> - Oliver’s suggestion</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VP: Add additional request examples: <a href="https://github.com/openid/OpenID4VP/pull/218">
https://github.com/openid/OpenID4VP/pull/218</a> - needs reviews</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
VCI: Clarify credential offer endpoint <a href="https://github.com/openid/OpenID4VCI/pull/380">
https://github.com/openid/OpenID4VCI/pull/380</a> - needs reviews</li></ol>
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Timelines for OID4VP 1.1</li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
Query language - proceed with attempt 3 PR? <a href="https://github.com/openid/OpenID4VP/pull/266">
https://github.com/openid/OpenID4VP/pull/266</a></li><li style="margin:0px; font-style:normal; font-variant-caps:normal; font-stretch:normal; font-size:13px; line-height:normal; font-family:"Helvetica Neue"; font-size-adjust:none; font-kerning:auto; font-variant-alternates:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-east-asian:normal; font-feature-settings:normal">
How can verifiers that support multiple trust models/ecosystems know how to authenticate to the wallet?
<a href="https://github.com/openid/OpenID4VP/issues/248">https://github.com/openid/OpenID4VP/issues/248</a></li></ol>
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<div>Thanks</div>
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<div>Joseph</div>
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