Summary
- Further Update: Proposed scheme for unlinkability with ZKPs using hardware based holder key
- Project status updates – Revocation Manager for ALLOSAUR, BBS, auditing
- AnonCreds Project Charter
- Merging BBS Efforts
- Open Discussion
Time: 7:00 Pacific / 16:00 Central Europe
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.
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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
- Proposal from Dfinity / Google / Jan Camenisch for using ZKPs with Hardware Keys
- Follows:
- Feedback from Cryptographers on the European ARF
- ECDSA proposal – early days. Start of an academic paper. – EUDI___Generic_ZK___ECDSA_Proposal.pdf. The work is based on Ligaro (Ames, Ishai, Hazay, Venkitasubramaniam).
- Must go through all the rigour, and then through standardization.
- Digital Bazaar objects because it lacks a pseudonymous identifier for the credential – same complaint it had about AnonCreds back in the day.
- Push for BBS to be reviewed by Cryptographers.
- Follows:
- 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
- Audit Complete: verifiable-secret-sharing – some changes, and some ripple affects, such as to Genaro.
- 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
- Plan:
- Create an "anoncreds" repo, similar to this Aries repo.
- Put into it a "TSC.md" file that lists the TSC members and processes – same as this TSC.md in Aries.
- Put into it a "MAINTAINERS.md" that points to the Hyperledger "access-control.yaml" file and processes of Maintainers – same as this MAINTAINERS.md in Aries.
- Put a "MAINTAINERS.md" (like this one) file in all repos that points to the "access-control.yaml" file and to the AnonCreds repo MAINTAINERS.md ^^^^^^
- Update the charter to match roughly what is in the Aries Charter
- PQ Efforts for Revocation
- PQ equivalent to ALLOSAUR – fast, scalable, unlimited.
- Research – very fast set membership for both lattice and elliptic curves (need not be pairing friendly).
- Tweak to bullet proofs.
- As high as: 2^38 memberships – pre-allocated – but can be a smaller set.
- Less than 1 sec. to make proof, less than 1 sec. to verify.
- Open Discussion