WG 2022 10 03

Agenda

Time: 7:00 Pacific (fixed), 16:00 CET

Zoom Link: https://us02web.zoom.us/j/85188125213?pwd=UHRUVlgweFJ0T0g4SVdDUytYSkxJUT09

Recording: https://youtu.be/m7lizNQZFCc

Preliminaries

• Start Recording
• Reminder: Community Specification License v1.0 and Working Group Code of Conduct
• Welcome and Introductions
• Announcements:
  • Rebooting Web of Trust -- Work on the AnonCreds Specification by an RWoT Group
  • IIW -- Nov 22-25, Mountain View, Calif.

Main Agenda

• Open PRs Review -- new PRs from RWoT

  • General updates for consistency, and content updates.
    • Changing AnonCreds data models to be "right" or because the changes must be made for making AnonCreds ledger agnostic
      • Examples -- snake case vs. camel case consistency, the "ref" item in the CredDef object.

• RevReg Object updates -- enabling AnonCreds Methods to support both deltas and "full state" RevReg storage

  • See this part of the Call Recording
  • Same for all AnonCreds Objects -- Schema, Credential Definition, RevReg (Def, Entry)
  • To Do: Ankur to add paragraph about philosophy of the AnonCreds API

• Creating/sharing AnonCreds verifiable credential and presentation objects in W3C VC Data Model format

  • Is it really that easy?
  • See presentation here
  • See this part of the Call Recording

• Moving open source AnonCreds implementations out of Indy

  • See this part of the Call Recording
  • Discussed at Hyperledger Global Forum (ED and TSC Members) and there was support expressed
    • Project proposal here. Please review and add your organization and name to the proposal!!
    • Idea is to include the specification in the project -- something new for Hyperledger
    • I'll be adding the W3C VC Format support to the proposal

• What's left?

  • To Dos:
    • Review the Issuing and Presentation sections to exclude Legacy Indy impacts, and to formalize the Abstract API for writing/reading published objects
    • Cred Def Generation + PRIVATE_CRED_DEF -- non revocation, and plus revocation
    • Revocation data elements -- definition
    • Normative/Non-normative references
      • Collect from documents mentioned below (under action items) and from previous meetings
      • @ale-linux to do a first cut of this.

Action Items From Previous Meetings:

• Links to be referenced in the spec and used where needed:
  • From Will Abramson : https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.186.5994&rep=rep1&type=pdf
  • From Will Abramson : https://github.com/hyperledger/indy-hipe/blob/c761c583b1e01c1e9d3ceda2b03b35336fdc8cc1/text/anoncreds-protocol/README.md
• From Artur Philipp : Issue about raw/encoded values used in AnonCreds https://jira.hyperledger.org/browse/IS-786
• Latex in Spec-Up / (Re)Discovery of AnonCreds Protocols paper from Mike Lodder, Brent Zundel. There is a full latex version of the document -- that document uses images to get the calculations into the text.