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FAPI WG Meeting Notes (2019-01-16)

Date & Time: 2019-01-16 14:00 UTC

Location: GoToMeeting https://global.gotomeeting.com/join/321819862

The meeting was called to order at 14:09 UTC.

1.   Roll Call

  • Attending:
    • Nat, Brian, Daniel, Dave, John, Joseph, Torsten, Bjorn, Freddi, Chris
  • Guests:
  • Regrets:

4.   External Organizations

4.1.   STET, Berlin Group (Torsten)

  • No news.
  • Dave will also try to get in touch with them once the TR is complete with figures.

4.3.   UK OpenBanking (Freddi)

  • Progressing with ver. 4.

4.4.   ISO/TC 68 (Dave)

  • Draft sent out a week ago. He will meet with the editor next week.
  • Feedback sought.

5.   Issues

5.1.   # 204 CIBA Binding Messages (Dave)

Examples should be added. No concrete proposal yet. Assigned to Dave and taken off-line with Freddi.

5.3.   #206: CIBA - Add reference to the relevant clauses in FAPI RW (Dave)

  • #206
  • text in the spec that explicitly refers to 5.2.2 in FAPI1 and FAPI2 is sufficient and I propose we close this

5.4.   #207: RS256 vs PS256 (again)

  • #207
  • Lengthy discussion around it. Recommending not to use RS256 seems to be fine. People tend to use it for both signature and encryption once it is allowed.
  • Also, John pointed out that moving from RS256 to PS256 should not require complete re-registration of the client as keys are going to be the same, but Brian pointed out that there is no way to do so in the spec.
  • Chris pointed out that OBIE is trying to come up a method that smooths it.

5.5.   #208: Part 2 should limit allowed JWE algorithms (Joseph)

  • #208
  • PKCS 1.5 banning is only written in the context of signature. We should do so for encryption.

6.   AOB

6.1.   Ozone reference bank experience (Chris)

  • There seems to be some portion of the spec that should be softened from SHALL to SHOULD.
  • One of them is the parameter duplication: John and Nat should probably press harder for OAuth JAR.
  • Chris/Freddi/Joseph to come up with the concrete set of those issues for the next Atlantic call.

6.2.   Security paper feedback (Daniel)

  • Daniel is seeking feedback on the paper that was distributed to some members of the WG.

6.3.   Next Call

  • Pacific call next week. Atlantic call in 2 weeks time.

The meeting adjourned at 15:05.

Updated