<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">SIOP Special Topic Call Notes 16-Feb-21<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kristina Yasuda - Microsoft Identity Standards<o:p></o:p></p>
<p class="MsoNormal">David Moeller - Affinidi<o:p></o:p></p>
<p class="MsoNormal">Mike Jones - Microsoft Identity Standards, OIDF<o:p></o:p></p>
<p class="MsoNormal">Tom Jones - Independent<o:p></o:p></p>
<p class="MsoNormal">Alen Horvat - AceBlock<o:p></o:p></p>
<p class="MsoNormal">Adam Lemmon - Tribe ID<o:p></o:p></p>
<p class="MsoNormal">Xavier Vila - Validated ID<o:p></o:p></p>
<p class="MsoNormal">Oliver Terbu - DIF, ConsenSys<o:p></o:p></p>
<p class="MsoNormal">Markus Sabadello - W3C and DIF<o:p></o:p></p>
<p class="MsoNormal">Tony Nadalin - Independent<o:p></o:p></p>
<p class="MsoNormal">Vittorio Bertocci - Auth0<o:p></o:p></p>
<p class="MsoNormal">Wayne Change - Spruce Systems<o:p></o:p></p>
<p class="MsoNormal">Albert Solana - Validated ID and DIF<o:p></o:p></p>
<p class="MsoNormal">Edmund Jay - MGI1<o:p></o:p></p>
<p class="MsoNormal">Bjorn Hjelm - Verizon, OIDF<o:p></o:p></p>
<p class="MsoNormal">David Waite - Ping Identity<o:p></o:p></p>
<p class="MsoNormal">John Bradley - Yubico, OIDF<o:p></o:p></p>
<p class="MsoNormal">Jeremie Miller - Ping Identity<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Implementation Reports<o:p></o:p></p>
<p class="MsoNormal"> Alen described his implementations<o:p></o:p></p>
<p class="MsoNormal"> Their first implementation was based on OpenID Connect Core Chapter 7<o:p></o:p></p>
<p class="MsoNormal"> The main issue they ran into was lack of RP support<o:p></o:p></p>
<p class="MsoNormal"> Albert described his implementations<o:p></o:p></p>
<p class="MsoNormal"> They based theirs on the DIF SIOP draft<o:p></o:p></p>
<p class="MsoNormal"> They also defined their own protocol<o:p></o:p></p>
<p class="MsoNormal"> They defined a way to select wallets<o:p></o:p></p>
<p class="MsoNormal"> Adam described his implementation<o:p></o:p></p>
<p class="MsoNormal"> They are using the credential provider extension to issue health certificates in Singapore<o:p></o:p></p>
<p class="MsoNormal"> Kristina described Microsoft's implementations<o:p></o:p></p>
<p class="MsoNormal"> It started with the DIF SIOP draft and is migrating towards the SIOP V2 draft<o:p></o:p></p>
<p class="MsoNormal"> Tom described his implementation<o:p></o:p></p>
<p class="MsoNormal"> It started with Section 7<o:p></o:p></p>
<p class="MsoNormal"> He then changed it to use loopback<o:p></o:p></p>
<p class="MsoNormal"> It doesn't solve the multiple wallets problems<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Agenda<o:p></o:p></p>
<p class="MsoNormal"> Agenda Issues/PR review for SIOP V2 draft<o:p></o:p></p>
<p class="MsoNormal"> 1. SIOP Discovery/Invocation: #1199, #1207<o:p></o:p></p>
<p class="MsoNormal"> 2. SIOP Registration: #1198<o:p></o:p></p>
<p class="MsoNormal"> 3. Support for VP in SIOP response: #1206, #1205<o:p></o:p></p>
<p class="MsoNormal"> 4. sub_jwk when sub is DID in SIOP: #1203<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Open SIOP PRs<o:p></o:p></p>
<p class="MsoNormal"> <a href="https://bitbucket.org/openid/connect/pull-requests/9">
https://bitbucket.org/openid/connect/pull-requests/9</a><o:p></o:p></p>
<p class="MsoNormal"> People can review this PR<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Open SIOP Issues<o:p></o:p></p>
<p class="MsoNormal"> <a href="https://bitbucket.org/openid/connect/issues?status=new&status=open&component=SIOP">
https://bitbucket.org/openid/connect/issues?status=new&status=open&component=SIOP</a><o:p></o:p></p>
<p class="MsoNormal"> #1198: Registration in SIOP<o:p></o:p></p>
<p class="MsoNormal"> Tom asked how the information gets to the OP<o:p></o:p></p>
<p class="MsoNormal"> Mike responded that it's sent in the authorization request<o:p></o:p></p>
<p class="MsoNormal"> Alen reported that many SIOP OPs won't have a place to host Web URLs<o:p></o:p></p>
<p class="MsoNormal"> Alen asked about signing registration requests<o:p></o:p></p>
<p class="MsoNormal"> Tony described the use of a query language to select the desired claims<o:p></o:p></p>
<p class="MsoNormal"> #1205: Indicating support for VCs (SIOP)<o:p></o:p></p>
<p class="MsoNormal"> #1206: How to support LD-Proofs in Verifiable Presentations<o:p></o:p></p>
<p class="MsoNormal"> We discussed the IANA-registered "vc" and "vp" claims<o:p></o:p></p>
<p class="MsoNormal"> Oliver said that the "vp" claim has some limitations<o:p></o:p></p>
<p class="MsoNormal"> It's intended to be used for JWT-based verifiable presentations<o:p></o:p></p>
<p class="MsoNormal"> It isn't intended for LD Proof-based VPs<o:p></o:p></p>
<p class="MsoNormal"> Wayne said that there isn't a normative proof requirement in the VC spec<o:p></o:p></p>
<p class="MsoNormal"> Tony said that there is required @context processing for JSON-LD VCs<o:p></o:p></p>
<p class="MsoNormal"> Mike said that if we need an additional claim for LD-based proofs, we could define one<o:p></o:p></p>
<p class="MsoNormal"> That's more likely to work than adding an additional parameter<o:p></o:p></p>
<p class="MsoNormal"> Tony agreed with that approach<o:p></o:p></p>
<p class="MsoNormal"> People seemed to be good with that approach<o:p></o:p></p>
<p class="MsoNormal"> Oliver wants us to spend more time on this, going through pros and cons<o:p></o:p></p>
<p class="MsoNormal"> He said that there's a hackmd document describing some tradeoffs<o:p></o:p></p>
<p class="MsoNormal"> Mike encouraged people to file comments in the issue itself<o:p></o:p></p>
<p class="MsoNormal"> #1203: sub_jwk when sub is DID in SIOP<o:p></o:p></p>
<p class="MsoNormal"> John said that sub_jwk was in Chapter 7 because there wasn't another key representation available<o:p></o:p></p>
<p class="MsoNormal"> Wayne said that some DIDs don't have a representation of the key available<o:p></o:p></p>
<p class="MsoNormal"> John said that that would be a reason to keep the key<o:p></o:p></p>
<p class="MsoNormal"> DW said that we might want to support multiple subjects<o:p></o:p></p>
<p class="MsoNormal"> For instance, to enable migration among hosted providers<o:p></o:p></p>
<p class="MsoNormal"> John wondered about security downsides of proving only one of the multiple proofs<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Call Schedule<o:p></o:p></p>
<p class="MsoNormal"> The next SIOP special topic call is in two weeks at the same time<o:p></o:p></p>
</div>
</body>
</html>