2020-05-04 Indy Contributors Call
Summary
Planned:
- IIW Update
- Work updates:
- Indy VDR
- Indy Credx
- Aries Credx
- Aries Storage
- Migrating from JIRA to GitHub Issues
- Migrating from Jenkins to GitHub Actions (or Azure Pipelines)
- Update on Revocation 2.0 - Merkle Tree Processing Tech Spike
- If time: BBS+ ZKPs and Indy
The call was recorded is available here: 20200504 Indy Contributors Call
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Introductions
Attendees
- Stephen Curran (Cloud Compass Computing Inc.) <swcurran@cloudcompass.ca>
- Brent Zundel (Evernym, Inc.) <brent.zundel@evernym.com>
Related Calls and Announcements
- Identity Implementer Working Group call (Wiki Page) - every 2nd Thursday
Release Status and Work Updates
- Move from Sovrin Foundation infrastructure - Wade Barnes
- Move from Jenkins to GitHub actions
- Sovrin Foundation Jenkins machines are going away
- Sovrin resource migration
- #cicd discussion "Indy CI / CD Migration" (in #cicd use menu item "Discussions" to see/get to the discussion)
- Move repo.sovrin.org → Hyperledger Artifactory for all except Sovrin Foundation specific artifacts
- Move from Jenkins to GitHub actions
- Indy Node
- April: no release
- May:
- Replacing Indy Crypto with Ursa (Kiva)
- More "rich schema" objects
- Ubuntu 20.04 (Kiva)
- Need to check additional dependencies: Error rendering macro 'jira' : null
- Need to check additional dependencies:
- Indy SDK
- April: no release
- May/June:
- Indy VDR into LibIndy
- Indy Credx into LibIndy
- Aries Shared Libraries
- Aries Shared:
- indy-vdr (Andrew Whitehead) https://github.com/hyperledger/indy-vdr
- Nearing release 0.6(?) - most work complete that was needed: Design doc, FFI, testing, CI / CD
- CI - GitHub actions runs unit tests and basic integration tests
- CD not there
- No design doc, but crate docs
- Rich Schema merged and behind a feature flag
- Refactoring PR not merged - cleanup, internal simplification, crate docs
- As an Aries interface becomes standardized, will add that API layer
- VON Network browser moved to Indy-VDR - branch
- BC Gov created a tails server based on Indy-VDR - with dynamic ledger access
- Nearing release 0.6(?) - most work complete that was needed: Design doc, FFI, testing, CI / CD
- indy-credx - https://github.com/andrewwhitehead/indy-credx
- need to move ASAP to at least BC Gov repo - Andrew Whitehead
- ACA-Py branch created that can do credential exchange with indy-credx
- Next up: adding revocation 2.0 support
- Integrating upgraded PyO3 library
- indy-shared-rs - https://github.com/bcgov/indy-shared-rs
- Shared features across indy-vdr and indy-credx
- pack/unpack on Ursa (not libsodium)
- home for revocation support? Or at least shared set membership proof handling?
- Move to Hyperledger move this week...
- aries-credx
- https://github.com/sovrin-foundation/aries-credx-framework-rs
- 6 most common attribute encodings
- Does not have anoncreds 1 attribute encoding.
- Can make a non-revocable credential and create proofs.
- Tagging will be moved to the KMS.
- Mike will be working on revocation registry 2.0
- https://github.com/sovrin-foundation/aries-credx-framework-rs
- Aries Secure Storage initiatives:
- Mike working on documentation and architecture as an Aries RFC (KMS architecture) and Ursa RFC (API)
- PR is submitted: https://github.com/hyperledger/aries-rfcs/pull/440
- Mike and Cam's work aries-kms-mayaguez - Postgres backend for credential storage
https://github.com/sovrin-foundation/aries-kms-rs- Persistence work allows plugging in any database engine.
- Focus is using an external enclave.
- Mike working on documentation and architecture as an Aries RFC (KMS architecture) and Ursa RFC (API)
- indy-vdr (Andrew Whitehead) https://github.com/hyperledger/indy-vdr
- Ursa
- BBS+ added
- 0.3.5 pending, plus new additions
- Aries Shared:
Meeting Topics
- IIW
- BBS+
- DIDComm and CHAPI Discussion
- Update: Move to GitHub Issues from JIRA for indy-sdk, indy-node, indy-plenum
- Issues now active
- Pending: Putting in the PR to announce location of issues in READMEs
- Update: Migrate Jenkins to GitHub Actions (and perhaps Azure pipelines)
- Plan started - Sovrin resource migration
- Resources: Wade Barnes (BC Gov), Thor Wolpert (BC Gov) for first step (Indy SDK/Linux)
- Revocation 2.0 - Tech Spike on Merkle Trees in process (Daniel Hardman)
- Tech Spike Implementation: https://github.com/dhh1128/merklespike
- Notes on Issues: size of compressed leaves, resources to calculate internal nodes
- Next steps - continue with the spike
- Side note: Digital Bazaar is using a bit field as non-ZKP revocation registry
- BBS+ Signatures enables ZKPs with JSON-LD
Draft Spec: http://mattrglobal.github.io/jsonld-signatures-bbs-spec/
Draft spec repo: http://github.com/mattrglobal/jsonld-signatures-bbs-spec
BBS+ signature implementations: https://github.com/mattrglobal/node-bbs-signatures https://github.com/andrewwhitehead/ursa-bbs-py
JSON-LD signature suite to use with VC-JS: http://github.com/mattrglobal/jsonld-signatures-bbs
Regarding credential schema definitions in the vc data model: http://w3c.github.io/vc-data-model/#data-schemas
Proof formats in the VC Data Model: http://w3c.github.io/vc-data-model/#proof-formats
The paper for “provable security”: http://eprint.iacr.org/2016/663.pdf
- Next steps:
- Revocation - credential status field
- Predicates?
- CCG - being put forward by Mattr
- Question: How does required reveal work at the crypto layer?
Future Calls
Next call:
Future:
- Requirements questions:
- IS-1099: anoncreds.prover_get_credentials_for_proof_req should return per-credential timestamp
- Should we allow duplicate credentials from the same issuer?
- IS-1099: anoncreds.prover_get_credentials_for_proof_req should return per-credential timestamp
Action items
- PR to RFC #0019 to compare pack/upack to msgpack (Sergey)
- Review the 61 cases of "unsafe" libindy calls and figure out if they are justified.