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WG 2022 08 22

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Stephen Curran edited this page Aug 22, 2022 · 3 revisions

Agenda

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

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

Recording: https://youtu.be/DPKkNhrXDh0

Preliminaries

Main Agenda

  • Open PRs Review
    • Results from Meeting to be added
  • Clarification on the handling of SchemaID, CredDefID, RevRegDefID and RevRegEntryID
    • URIs except for Legacy Indy -- do we need to further constrain IDs to be more specific than "URIs"?
  • Challenge for AnonCreds implementations on other VDRs in supporting revocation.
    • Add the option of NOT supporting revocation? Yes
    • Tricky part is the handling of deltas of RevRegEntry sets without custom VDR support
      • Conflict between the AnonCreds proof request semantics and functionality of VDR
    • v2.0 goal - a revocation scheme that does not rely on deltas -- e.g. entire registry is published with each update
      • That removes any "ledger-side functionality"
      • We could add a comment about the use of RevocationList2020 with AnonCreds as that eliminates the deltas, but opens up correlation and ongoing monitoring.
      • Would rather see something like Revocation using zk-SAM
  • (Re)Discovery of AnonCreds Protocols paper from Mike Lodder, Brent Zundel. I assume we can use that for the AnonCreds Protocols section of the specification.
    • Can also look at the ursa-docs repo -- pure latex
      • Will try to embed the latex in a markdown fenced code block
  • Discussion of AnonCreds and the VC Data Model
    • Issuer Date is required
    • Canonicalization in AnonCreds was discussed -- the signing of the encoded integers vs. anything else
    • @TelegramSam to investigate and may propose an approach.
  • Action Items
  • What's left?
    • To Dos:
      • Need to investigate the ref data element and what happens if it is not an integer
      • 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:

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