• Work updates:
    • Indy VDR
    • Indy Credx
    • Aries Credx
    • Aries Storage
  • Update on Revocation 2.0 - progress and discussion on desired properties

The call was recorded is available here: 20200518 Indy Contributors Call

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  • Stephen Curran  (Cloud Compass Computing Inc.) <>

Related Calls and Announcements

  • Identity Implementer Working Group call (Wiki Page) - every 2nd Thursday

Release Status and Work Updates

  • Move from Sovrin Foundation infrastructure - Help Wanted
    • 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 → Hyperledger Artifactory for all except Sovrin Foundation specific artifacts
  • Indy Node
    • June:
      • Replacing Indy Crypto with Ursa (Kiva)
      • More "rich schema" objects
      • Ubuntu 20.04 (Kiva)
        • Need to check additional dependencies:  Unable to render Jira issues macro, execution error.
  • Indy SDK
    • June:
      • Indy VDR into LibIndy
      • Indy Credx into LibIndy
  • Aries Shared Libraries
    • Aries Shared:
    • Ursa
      • BBS+ added
      • 0.3.5 pending, plus new additions

Meeting Topics

  • Indy Performance Testing
  • Revocation 2.0 
    • Tech Spike on Merkle Trees in process (Daniel Hardman)
    • Tech Spike on using ranges in the bitstream (Andrew Whitehead) which is looking very promising
      • 1M revocation registry seems viable, 16M may be possible
      • Question as to whether this approach will yield a range proof (user exposes range) or a ZKP
      • Next step: Andrew Whitehead Mike Lodder Brent Zundelto discuss and define if work on this approach should continue.
    • Discussion: How big should a revocation registry should be?
      • What constraints should be applied?
        • Issuer: revocation profile (% revoked, frequency), total credential pool size, number of rev. registries
        • Holder (especially mobile holder) resources: bandwidth, memory, compute resources, revocation frequency
        • Verifier: Rev Registries/Entries
        • Ledger: Rev Entry size, frequency, reads
        • Herd size
      • Should it be as large as possible within the tightest constraints, or should we aim for just a specific size?
      • Answer: Go for the largest that we can achieve within the constraints, with a likely minimum acceptable size being 1M credentials/registry
        • Issuers can choose smaller based on the use case, but we should aim for the largest feasible.

Future Calls

Next call:


  • 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?

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.

Call Recording