Page History

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• PRs for review and merging
  • AnonCreds Rust 102 – handling combinations of Revoked/Non-Revoked presentations
  • ANDs and ORs
• Issues to Discuss – notably, issues that are ready to be closed.
• Checkin: anoncreds-rs implementation progress, requests
  • NodeJs wrapper performance issue: https://github.com/hyperledger/aries-askar/issues/76
  • Discussion about what to do about wrappers, especially if there is a need to drop the napi-js library to overcome this issue.  Various options were discussed, and links provided:
• Discussion from last week – having an intermediary collect presentations from holders and then share them with the final verifier.
  • Use Case:
    • A bus is visiting a secure site for which all visitors must present ID.
    • Site sends the bus operator a nonce.
    • The bus operator uses the nonce in a presentation request flow with each passenger.
    • Bus operator verifies all of the presentations.
    • The Bus operator forwards all of the presentations to the site for verification.
  • Questions:
    • Is there value in the use of the nonce in this way?
    • Does this alter the cryptography in any way?
    • Terms of use of the data received by the bus operator?
  • Discussion to be carried forward to next week.
• Proposal: Should we move attribute encoding into the specification and out of the hands of the issuer?
  • Approach:
    • Deprecate the inclusion of encoded values from the "sign credential" process
    • If passed, recalculate and error if they don't match the canonicalization algorithm
      • If integer or string integer - leave as is
      • Else stringify and hash
    • In presentation – recalculate on use, as needed.

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