2024-03-04 AnonCreds Working Group Meeting
- Stephen Curran
Owned by Stephen Curran
Summary
- Updates on the AnonCreds in W3C VCDM from the Credo and ACA-Py groups (if available)
- Data organization in the AnonCreds v2 Presentation flow
- Pluggable Signatures in AnonCreds v2
- AnonCreds Hyperledger Mentorship Program ideas
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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Hyperledger is committed to creating a safe and welcoming community for all. For more information please visit the Hyperledger Code of Conduct. |
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Meeting Attendees
- Stephen Curran (BC Gov / Cloud Compass Computing Inc.) <swcurran@cloudcompass.ca>
- 9 others
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:
- Workshop Wed. April 24th: Zero Knowledge Proofs and ZK Programming in Blockchain Application Development
- IIW – April 16-18, 2024
- Any updates to the Agenda?
Agenda
- AnonCreds in W3C VCDM Format - Status/Updates
- Test Vectors Repo: https://github.com/TimoGlastra/anoncreds-w3c-test-vectors
- Credo / Bifold Progress:
- PR is merged into Credo, 0.5.0 Alpha is available
- Working on the Bifold – update agent to 0.5.0
- ACA-Py Progress:
- Progress and work on it. Difficulty in getting tests to run.
- ACA-Pug meeting tomorrow for a demo.
- Data organization in the AnonCreds v2 Presentation flow – presentation
- For ZKPs in a presentation, make the "claim" item a complex data structure, with one or more ZKPs listed with type and value.
- Consider how best to handle multiple of the same type – e.g. multiple memberships on the same claim
- TBD: The exact data format for each type (predicate, range proof, membership, etc.)
- Revocation to be "automatic" based on whether or not the issuer decides to issue a revocable or non-revocable credential.
- TBD: the flow of that during issuance
- TBD: What about the W3C VCDM concept of "credentialStatus" and the possiblity of multiple status types on a credential.
- Link secret to be likewise automatic – in the schema, in the credential, and always disclosed in a presentation.
- To Do: formalize the list.
- For ZKPs in a presentation, make the "claim" item a complex data structure, with one or more ZKPs listed with type and value.
- Pluggable Signatures in AnonCreds v2 – PR submitted/merged – commits pushed to get the PR accepted.
- AnonCreds Hyperledger Mentorship Program ideas – suggestion of ideas:
- A "revocation manager" implementation that can receive sharded requests and send back responses.
- BBS+ Implementation.
- Rust coding to work on AnonCreds objects so that they can be published/spec'd.
Rust coding to do Post Quantum signatures -- a plugin to the existing library.- Other ideas?
- Open Discussion
To Dos:
Action items
- Links to be referenced in the spec and used where needed: