2024-07-08 AnonCreds Working Group Meeting

Summary

Help Me Understand
- How do we BBS Support into AnonCreds v2?
- What BBS Library should we use?
- Are all of the AnonCreds v2 features supported in all Libraries?

This specification creating group operates under the Linux Foundation Community Specification License v1.0.

cifi	Hyperledger is committed to creating a safe and welcoming community for all. For more information please visit the Hyperledger Code of Conduct.

Stephen Curran (BC Gov / Cloud Compass Computing Inc.) <swcurran@cloudcompass.ca>

AnonCreds v1.0:
- The v1.0 specification is published here: https://hyperledger.github.io/anoncreds-spec/
- The Working Group uses this GitHub repository to manage the specification: https://github.com/hyperledger/anoncreds-spec
- The AnonCreds Methods Registry: https://hyperledger.github.io/anoncreds-methods-registry
- The v1.0 implementation in Rust is here: https://github.com/hyperledger/anoncreds-rs
- The v1.0 implementation is dependent on this Rust CL Signatures implementation: https://github.com/hyperledger/anoncreds-clsignatures-rs
AnonCreds v2.0
- The initial framework for the v2.0 specification repository is here: https://github.com/hyperledger/anoncreds-spec-v2
- The v2.0 implementation in Rust is here: https://github.com/hyperledger/anoncreds-v2-rs
- Underlying AnonCreds v2.0 are cryptographic libraries in Hyperledger Labs Agora

Welcome and Introductions
Announcements:
- ALLOSAUR paper published at the ACM
- Cryptographers feedback on the European ARF – document
  - Boilded down: Call for unlinkability based on BBS Signatures
Any updates to the Agenda?

Help Me Understand:
- Comparing Dock Networks Library and AnonCreds v2: Apples to Apples or Apples to Oranges?
- How do we BBS Support into AnonCreds v2?
  - Hyperledger Labs Agora will have a BBS Library
    - Hyperledger Labs repos search for "agora" to see the (currently) 6 libraries.
      - allosaur recently added.
  - MTTR has an old version
  - W3C VC-DI-BBS working group – it BBS, blinded secret, pseudonymous identifiers (holder-, issuer-based)
- What BBS Library should we use?
- Are all of the AnonCreds v2 features supported in all Libraries?
Revocation Manager for ALLOSAUR Project – Hyperledger Mentorship project being executed by VictorH2208
- Project plan
Using AnonCreds with did:tdw
Standing topic:
- Audit Updates from Mike Lodder:
  - blsful - audit complete and published in Agora
  - Audit complete: Genaro to be contributed
  - Audits wrapping up: verifiable-secret-sharing (overview meeting this Thursday)
  - Being audited: threshold-mpc libraries
Open Discussion