<phil_long/t3/gu/csky...> Issue with QR codes is that the code is the credential. There isn't a differentiated verifiable presentation. Proof that sigs are there but not shared. The credential can be copied by anyone and hard to differentiate from the origina.
<phil_long/t3/gu/csky...> A bunch of problems with QR codes becoming the norm (as in the draft paper at the link above)
<phil_long/t3/gu/csky...> There isn't anyway to tell a QR code it "is" the credential, not individually verifiable at a given point in time (at presentation of it).
<phil_long/t3/gu/csky...> Digital to digital interaction was the original guide for verification processes. Never designed for the instance of QR codes and the challenges that paper credentials brings.
<eric_kuhn> We use QR codes to pass a URI that starts an issuance or presentation flow through SIOPv2 and OIDC4VP
<phil_long/t3/gu/csky...> Matthias - issue of the deadline by which VC-Edu need sthe use cases. They are needed here for VC-Edu by end of Nov.
<phil_long/t3/gu/csky...> There is a name change planned for EBCI (sp) but we'll address that another time.
<kerri_lemoie> Will follow up with Matthias re: EDCI name change
<phil_long/t3/gu/csky...> EK - use cases and QR codes discussion is being co-mingled. The later is more about the initiation of the transfer process of the issuance flows.
<phil_long/t3/gu/csky...> QR codes can be used for an use case initiation and flow.
<phil_long/t3/gu/csky...> For VC-Edu he is thinking more about what schemas are appropriate. Are we taking the schema of open badges and putting it into a QR code and leave interoperability to be solved later?
<phil_long/t3/gu/csky...> Looking to use cases to help the alignment of use cases to Verifiable Credential's data model so that edu use cases and credentials can be used as the VC Data Model requires.
<phil_long/t3/gu/csky...> PDL - Edu use cases in some examples use the data models of 'credentials' for things beyond the assertion of a capability and more in the context of providing guidance and on the progress through the achievement.
<kerri_lemoie> Thanks @matt!
<phil_long/t3/gu/csky...> Use case first aid certificate a proof of a qualification.
<phil_long/t3/gu/csky...> Occupational qualification for work.
<phil_long/t3/gu/csky...> Goal of the primary actor is to qualify for promotion/raise.
<phil_long/t3/gu/csky...> Actor has a QR cert of a VC; company needs employee with that credential issued and valid; company recognizes the VC is appropriate to meet the work requirement
<kerri_lemoie> (Link to the First Aid proof use case)
<phil_long/t3/gu/csky...> Pat presents paper cert showing that they have met std first aid qualification is valid; canned QR code is recognized as representing the valid issuance; the system would recognize this into the HR system of the company, and the HR system would qualify the person as meeting the requirement for the raise and automatically update the payroll process to bump his salary.
<deb_everhart> thank you!
<phil_long/t3/gu/csky...> Points of Failure: pat has outdated certificate; smartphone app cant' scan the QR code; HR system cannot verify the VC on the cert; HR system does not recognize the cert claimed in the VC as meeting the qualification; Pat's name in the VC is not the same as the name of the employee in the HR system.
<phil_long/t3/gu/csky...> Is this subject to the same cautions re: QR codes as the last one?
<phil_long/t3/gu/csky...> Same cautions about the use of QR codes as the last one.
<phil_long/t3/gu/csky...> (aka first aide credential issuance)