W3C

SPC Task Force

28 June 2021

Attendees

Present
Adrian Hope-Bailie (Coil), Anne Pouillard (Worldline), Chris Wood, Christian Aabye (Visa), Clinton Allen (American Express), Doug Fisher (Mastercard), Gerhard Oosthuizen (Entersekt), Ian Jacobs (W3C), Jean-Carlo Emer (Stripe), Jonathan Grossar (Mastercard), Praveena Subrahamany (Airbnb), Sameer Tare (Mastercard), Stephen McGruer (Google), Susan Pandy (Discover), Werner Bruinings (American Express)
Regrets
Michel Weksler (Airbnb)
Chair
Ian
Scribe
Ian

Meeting minutes

Analysis of SPC use case prioritization survey

SPC use cases prioritization

====

4.78 / 9: Auth different merchant

2.11 / 6: In-transaction enrollment, later authentication same merchant

2.00 / 6: Enrollment of multiple instruments with one authentication

1.78 / 5: Enrollment for both payment authentication and account login

1.56 / 4: Authentication with out-of-band authenticator

0.78 / 3: Express Checkout (no user presence check)

0.78 / 2: Frictionless Checkout (no user presence check or payment confirmation dialog)

0.56 / 3: Web Authentication enrollment

0.56 / 4: Authenticator unenrollment

0.33 / 1: Authentication by bank after redirect

PROPOSAL: Remove out-of-band auth from the list of use cases under consideration

Use cases

clinton: I think the results make sense
… regarding new use cases, I can see two paths
… some use cases lead to general solutions
… glad to see SRC in there

Ian: Any difference between 3DS and SRC flows?

Jonathan: The RP is different

Ian: What about CIBA in open banking use case?

chris: Client-initiated backchannel authentication. ... with CIBA it's a relatively straightforward and common approach in common banking....could definitely be used to exchange credential ids.
… doesn't look much different from the other use cases we've been looking at

Ian: Could we review the enrollment in a cross-origin iframe?

Stephen: The origin trial allows a bank iframe (3p wrt top-level merchant) with UX
… whether the browser UX is required remains to be seen.

Other feeback

Ian: We also heard a desire for the caller to call SPC without a round-trip to the RP. And to allow the merchant to validate the assertion

Next call

5 July

Minutes manually created (not a transcript), formatted by scribe.perl version 136 (Thu May 27 13:50:24 2021 UTC).