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<p class="MsoNormal"><span style="font-size:20.0pt">Minutes from the February 4, 2020 SSE call:<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:16.0pt">Attendees<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">Morteza Ansari<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">Annabelle Backman<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">Stan Bounev<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">Marius Scurtescu<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:16.0pt">Re-chartering Update<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Re-chartering approved, we are now Shared Signals and Events<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Working with OIDF to update working group website<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Atul Tushibagwale added to the BitBucket repository<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank you all for attending!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt">CAEP Update<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Scenarios detailing all use-cases written and mostly reviewed.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">In person meeting planned for Feb 11-12 at Cisco San Jose. Rich Smith / Jordan Wright can provide details.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Need to update the SSE WG page content to reflect new charter / co-chairs.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt">CAEP Artifact Discussion<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">We do not have a good, organized storage place for documents that aren’t specs and spec-like work.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Annabelle to follow up with OIDF to see if there are any organizational solutions.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt">Compromised Credential Event Use Case<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Stan Bounev proposes a “compromised credential” event that would transmit a hashed username and fragment of a hash of the compromised credential.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Discussed security concerns related to sharing the credential hash fragment:<o:p></o:p></span>
<ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1"><span style="font-size:11.0pt">A hash fragment is still susceptible to brute forcing, albeit with some error rate.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1"><span style="font-size:11.0pt">Recipients need to have a password artifact that they can compare the fragment against, which may encourage them to store weaker hashes of passwords
than they might otherwise use (e.g., using scrypt in the main authentication database, but storing SHA-256 hashes to compare against compromised credentials)<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1"><span style="font-size:11.0pt">Could look at
<a href="https://en.wikipedia.org/wiki/Password-authenticated_key_agreement">PAKE</a> protocols to see if any could be adapted to this use case.<o:p></o:p></span></li></ul>
</li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Briefly discussed bulk compromise scenario, no conclusions.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt">Stan to develop a use case document outlining relationships between different parties, scenarios where this event might apply.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal">– <o:p></o:p></p>
<p class="MsoNormal">Annabelle Richard Backman<o:p></o:p></p>
<p class="MsoNormal">Co-chair, Shared Signals and Events Working Group<o:p></o:p></p>
<p class="MsoNormal">OpenID Foundation<o:p></o:p></p>
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