2021-11-29 TSWG Meeting Notes

Owned by Drummond Reed
Last updated: Nov 29, 2021
4 min read

Meeting Date

  •  

Zoom Meeting Link / Recording

Attendees

Main Goal of this Meeting

Status check on Task Forces, review comments on the draft ToIP Trust Registry Protocol Specification, agree on holiday meeting schedule.

Agenda Items and Notes (including all relevant links)

TimeAgenda ItemLeadNotes
5 min
  • Start recording
  • Welcome & antitrust notice
  • Introduction of new members
  • Agenda review
Chairs
  • Antitrust Policy Notice: Attendees are reminded to adhere to the meeting agenda and not participate in activities prohibited under antitrust and competition laws. Only members of ToIP who have signed the necessary agreements are permitted to participate in this activity beyond an observer role.
  • New Members:
5 minsReview of Action Items from the previous meetingChairs
20 minsTask Force ReportsTF Leads

Trust Registry TF — Darrell O'Donnell

ACDC TF — Sam Smith Philip Feairheller 

  • Last week the meeting had a presentation from Kevin Dean from GS1.
  • GS1 has many different needs for chained credentials: measurements, authorization, identifier delegation, etc.
  • Part 2 of that meeting will be next week to map GS1's use cases into ACDC credential chaining.
  • The GLEIF use case is now going into a public beta.
    • A sandbox has been set up with a cohort going through a set of POCs.
    • Scheduled to go into production in early 2022.
  • They are starting to work on IETF specs.
    • One of the first is SAIDs (Self-Addressing Identifiers): https://datatracker.ietf.org/doc/draft-ssmith-said/. Comments sought.
    • Another is the CESR specification: https://github.com/WebOfTrust/ietf-cesr. CESR supports composability: concatenation of any type of cryptographic primitives in either binary or text format. It is truly a streaming protocol, so you can compose streams of any type and convert between text and binary, so you don't have to choose between "JSON or CBOR".
  • Darrell said it would be very helpful to have Sam present to the Technology Architecture TF so we can figure out where CESR and KERI fit in the stack.
  • Sam also clarified that ACDC uses JSON Schema, so you can build anything on top of it.
  • We then discussed privacy options. Selective disclosure can be built on top of ACDC credentials, however Sam has also developed a hidden attribute capability.
    • This allows an ACDC credential to contain only hashes of data, which the holder can then selectively disclose only the hashes desired.
    • For GLEIF, they have developed a transaction event log (TEL) for transactions that are fully public (the chain of GLEIF credentials). But GLEIF does have one type of credential containing personal data.
    • So Sam has developed an XOR blinded registry to use for cryptographic accumulators.
  • Sam and Darrell agreed that the easier we can make it to adopt, the better.
    • Sam agreed there are cases that need ZKP, but there are others where using blinded attributes is sufficient.
    • Sam also pointed out that ZKPs are actually non-productive when a transaction needs to be non-repudiable, such as many regulatory use cases.
    • AnonCreds is non-repudiable, but thus it is not true ZKP.
  • ACTION: Darrell O'Donnell to attend the next ACDC Task Force meeting (Monday Dec 6th).
  • ACTION: Drummond Reed to send an invite toSam Smith to attend the Technology Architecture Task Force meeting this Thursday Dec 2 — either 8AM MT or 2PM MT.

Design Principles TF — Drummond Reed

  • The Design Principles for the ToIP Stack V1 has been approved by the ToIP Steering Committee as a ToIP Approved Deliverable. We are just awaiting final graphics to finish publishing it.

Technology Architecture TF — Drummond Reed

  • This TF is steaming along. It has concluded that more than one ToIP protocol stack diagram will be needed.
  • Two more meetings are planned this week and next week (Drummond is gone the week after that).
25 minsToIP Trust Registry Protocol Specification comments

Darrell O'Donnell

Drummond Reed

Review comments on the draft ToIP Trust Registry Protocol Specification.


  • Review decisions/action items
  • Planning for next meeting 
Chairs
  • Holiday meeting schedule:
    • We will hold our last regular meeting of the year on Monday Dec 13 (Drummond Reed will not be able to attend).
    • We will NOT meet on Monday Dec 27th but will take that off for the holidays.
    • We will resume regular meetings starting Monday Jan 10.
  • ACTION: Darrell O'Donnell to cancel the Dec 27th meeting on the ToIP Calendar.

Decisions

  • None

Action Items