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Re: Request for Presenters: In-Person Presentation of Credentials

From: Shawn Butterfield <sbutterfield@salesforce.com>
Date: Wed, 30 Mar 2022 17:11:34 -0700
Message-ID: <CADtMrnDjybOmpdRtU+-4DEK2UGq5sB2dE8VEF5mCOYfFXh6GUA@mail.gmail.com>
To: James Chartrand <jc.chartrand@gmail.com>
Cc: David Waite <dwaite@pingidentity.com>, Credentials Community Group <public-credentials@w3.org>
Really interesting, thanks for the explanation of your use-case, James. I'm
curious:

*The letters, which are PDFs, include a QR that encodes (via CBOR-LD) a
> complete Verifiable Credential (all using the wonderful libraries from
> Digital Bazaar - thank you!)  Again the QR is NOT a link to a VC, but
> rather contains the entire VC.  The VC confirms the information that
> appears as text in the PDF.  *


Is it truly just the CBOR-LD VC Doc or is it a CBOR-LD Verifiable
Presentation (wrapped VC) that was serialized into a QR? I'm admittedly
"new here" so still learning, but wouldn't interoperable verification
software need the bundle as a verifiable presentation, not the standalone
credential?

Butters @ Salesforce | Software Architect


On Wed, Mar 30, 2022 at 5:01 PM James Chartrand <jc.chartrand@gmail.com>
wrote:

> Hi David,
>
> Apologies for following up on this so late. McMaster University has got a
> pilot underway (as part of our work with the DCC - Digital Credentials
> Consortium - https://digitalcredentials.mit.edu) in which we dynamically
> generate letters for students.  The letters confirm things like:
>
> - the student is registered for the current term
> - the student has graduated
> - the student's current course list
>
> The letters, which are PDFs, include a QR that encodes (via CBOR-LD) a
> complete Verifiable Credential (all using the wonderful libraries from
> Digital Bazaar - thank you!)  Again the QR is NOT a link to a VC, but
> rather contains the entire VC.  The VC confirms the information that
> appears as text in the PDF.
>
> The idea is that the student can use the PDF in various ways:
>
> - upload the file (PDF), say as part of an online application for a
> student bank account, to prove they're a current student.
> - email the file (PDF) to someone, say a company recruiter, to prove
> they’ve graduated.
> - print out a paper copy and present it in-person, say to the immigration
> officer when arriving at the Canadian border and applying at that moment
> for a student visa.
>
> I’m guessing it's the paper scenario that you’d be interested in, although
> you could also imagine the student sitting across the desk from a bank
> employee when opening a new bank account, and air-dropping (or equivalent)
> the file to the employee.
>
> The relying party can either scan the QR with their phone (from a web
> browser open to our verification web page), or if they’ve received the full
> file, can submit the PDF to the same verification web page (the
> verification code actually simply pulls out the QR image and proceeds as
> though the QR had been scanned).  The verfication web page displays the
> information that’s encoded in the VC (thereby confirming what appears in
> the text of the PDF).
>
> Happy to present a live demo of the system if that would be of interest
> (and if I’m not too late with this).  It is a fully functional pilot that
> uses the campus authentication system (Azure OIDC) and the campus student
> info system (PeopleSoft).
>
> James Chartrand
>
> On Mar 3, 2022, at 2:40 PM, David Waite <dwaite@pingidentity.com> wrote:
>
> The Interoperability Open Group at the Decentralized Identity Foundation
> is focused on education across communities on technologies, solutions, and
> interoperability efforts.
>
> We are planning for a multi-part series on in-person exchanges of
> credentials, also referred to as ‘attended’ use cases in the Mobile Drivers
> License community. We are seeking implementers who have created or deployed
> approaches to solve this problem using Verifiable Credentials.
>
> If you’ve worked on such an implementation and are willing to give a
> presentation to the group, feel free to reach out to me.
>
> -David Waite
>
>
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Received on Thursday, 31 March 2022 00:15:54 UTC

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