2024-07-22 AnonCreds Working Group Meeting

Summary

• Proposed scheme for unlinkability with ZKPs using hardware based holder key
• AnonCreds Project Charter
• Project status updates – Revocation Manager for ALLOSAUR, BBS, auditing
• Open Discussion

Time: 15:00 Pacific / 16:00 Mountain / Super Late Central Europe (Midnight...) / 10:00 Auckland/Wellington
Call Link: https://zoom.us/j/97954159540?pwd=WWk3WmQ3MVh1SXBYZGVreGl0QllGdz09

Recording:

Notices: 

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

Meeting Attendees

• Stephen Curran (BC Gov / Cloud Compass Computing Inc.) <swcurran@cloudcompass.ca>
• Steve McCown (Anonyome Labs) <smccown@anonyome.com>

Related Specifications and Repositories:

• 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

Meeting Preliminaries:

• Welcome and Introductions
• Announcements:
• Any updates to the Agenda?

Agenda

• Proposal from Dfinity / Google / Jan Camenisch for using ZKPs with Hardware Keys
  • Follows:
    • Feedback from Cryptographers on the European ARF
      • GitHub Issue: https://github.com/eu-digital-identity-wallet/eudi-doc-architecture-and-reference-framework/issues/66
      • Paper: https://github.com/user-attachments/files/15904122/cryptographers-feedback.pdf 
  • Proposal: EUDI_Follow_up-2.pdf
  • Presentation about the proposal: https://docs.google.com/presentation/d/1uuPzP7yqXWhePDKloaQx3pbY4r-PrNUy2plbSR_kjkw/edit?usp=sharing
• AnonCreds Project Charter:
  • Stems from the recent "intent to form" announcement from the Linux Foundation and Hyperledger Foundation about LF Decentralized Trust.
  • Proposed Charter: https://docs.google.com/document/d/1UiUv2H_xOHxV_rXfTSlsPu2TdQjgxNlVhU67RtqbMlM/edit?usp=sharing
  • No objections to the changes were raised at the meeting
• Status updates from current work:
  • Revocation Manager for ALLOSAUR Project – Hyperledger Mentorship project being executed by VictorH2208Project plan
  • BBS Signatures
  • 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

To Dos:

Action items