2025-04-28 AnonCreds Working Group Meeting -- CANCELLED
Summary
BBS pseudonymous identifier issue – "forever unlinkability"
Results of the AnonCreds v2 Webinar – success!
AnonCreds Quarterly Report
Changing the AnonCreds github organization
Open Discussion
Time: 15:00 Pacific
Call Link: https://zoom.us/j/97954159540?pwd=WWk3WmQ3MVh1SXBYZGVreGl0QllGdz09
Recording: To Be Added
Notices:
This specification creating group operates under the Linux Foundation Community Specification License v1.0.
LF Decentralized Trust is committed to creating a safe and welcoming community for all. For more information please visit the LFDT Code of Conduct. |
|---|
Meeting Attendees
@Stephen Curran (BC Gov / Cloud Compass Computing Inc.) <swcurran@cloudcompass.ca>
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
BBS pseudonymous identifier issues – forever unlinkability
Issue: Given colluding verifiers sharing pseudonymous identifiers and a (future) quantum computer calculation, unlinkability can be broken.
Proposals:
Document risk in the spec – at minimum.
Add in a vector of secrets that would prevent breaking unlinkability up to "n" uses of the credential.
Implement a ZKP proof of the pseudonymous identifier.
Webinar complete: https://www.meetup.com/lfdt-sf/events/306421109/
Recording: https://youtu.be/fElVhhBviUU\
AnonCreds Quarterly Report
Changing the AnonCreds github organization
Open Discussion