2019-08-28-A Aries Working Group Call (US morning)

Summary:

• Release and work updates
• Continued the discussion on the architecture of an Aries core library, including the threading model.

Note: This call is Recorded. Recordings posted at the bottom of the page.

Date

28 Aug 2019 (7AM Los Angeles, 10AM New York, 3PM London, 17H Moscow)

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Attendees

• Name (organization) <email>
• John Callahan (Veridium) <jcallahan@veridiumid.com>
• Ken Ebert (Sovrin Foundation) <ken@sovrin.org>
• Sam Curren (Sovrin Foundation) <sam@sovrin.org>
• Matt Raffel (Kiva) <mattr@kiva.org>
• Richard Esplin (Evernym)
• Daniel Bluhm (Sovrin Foundation) <daniel@sovrin.org>
• Sam Smith (ProSapien) <sam@samuelsmith.org>
• Troy Ronda  (SecureKey) <troy.ronda@securekey.com>
• Steve McCown (Anonyome Labs) <smccown@anonyome.com>

Welcome / Introductions

Announcements

• Hyperledger voting is happening. Make sure you have received an invitation to hyperledger-contributors mailing list to get voting instructions.
• Community project: Aries RFCs - process to move HIPES; RFCs that have been moved concepts / features / pull requests.
• Aries Workshop/Connectathon December 3-5 in Provo, Utah (details to follow)

Summary of Prior Calls and Related Meetings

• Aries WG
• Indy
• Ursa
  • Question for the Indy team on testing and deploying debian packages

Release Status

• Aries-CloudAgent-Python (bc.gov) - Release 0.3.1 has been tagged and is on PyPi
  • Working on next release, particularly on revocation support.
• Aries-Framework-Go (Troy)
  • First milestone: Framework Go v0.1.0
  • Best way to get involved: daily stand-up meetings
• Aries-SDK-Ruby (Jack)
  • Moved to https://github.com/hyperledger/aries-sdk-ruby
  • Released as a Gem (0.0.2)
  • Will use synchronous (blocking) threads due to GIL with reliance on ActiveJob in Rails (adaptors for Sidekiq, Resque, Sucker Punch, etc.) to support threading (but untested)
• Aries-Framework-DotNet (Tomislav)
  • Moved from StreetCred to Aries: https://github.com/hyperledger/aries-framework-dotnet
• Aries-StaticAgent-Python - Release 0.4.0
  • Move from Pysodium → PyNacl
  • Improved module interface and routing.
• Aries-SDK-Python - Wrapper from JeromK and SBCA?
• Aries-SDK-Java
  • People are expressing interest in Rocket Chat, but no one has started contributing code yet. Could start by moving the Indy SDK wrapper to Aries.
• Aries-SDK-JavaScript
  • Need a reviewer for the pull request moving code from Indy-SDK to Aries.
• Indy SDK
  • August
• Ursa
  • Working on release of 0.2.0
    • ZKP  / ZKLang improvements
    • Debian packages
    • Refactor internal plumbing for anoncreds 2.0, shouldn't impact external interfaces
    • Refactor multi-signature BLS in addition to aggregated signature
  • Sovrin Foundation is looking to build a Indy specific Ursa,  with ZKPs. Other Aries clients would build a different Ursa.

Work Updates

• Rich Schemas and W3C Verifiable Credentials (Ken)
  • Working on context object in Node. PR for Indy-Node is almost ready for review.
  • Making progress on the new schema object.
  • In order to do the review, need new Indy HIPEs: each new object, the new flow for creating credentials, creation of presentation request and presentation, compatibility with the old credential format
• SDK 2.0 architecture / Indy-Aries split (Sergey)
  • http://jira.hyperledger.org/browse/IS-1285
  • https://docs.google.com/document/d/1MYMi4NkixfoIJeC79WBOfX_QA3_9rG-iK3lZa86vIR0/edit#heading=h.z1u0dzf62loi POA and discussion
  • https://docs.google.com/drawings/d/1d-aCRC_Nzyywv9nyQif9_vBGbeWhp69M4T5_8_yYtAI/edit?usp=sharing Indy SDK Migration box diagram
  • https://docs.google.com/drawings/d/1sUffkRPlufingeeRjjBniVt9Ek3CNih9lUqym8mUl4M/edit?usp=sharing Aries Architecture
  • https://hackmd.io/_BhJewTlSUqMGNDc4SvgNw?edit developing ideas around APIs
  • Aries Presentations
  • https://hackmd.io/@gjPgYQjMT3azdpSAFgo5PA/HyjVdhVGr Daniel B's proposal for separating wallet and crypto
  • https://docs.google.com/document/d/18kHgTsHkSIIW9cakbampv8rxKxNchWycthHnXGyxkls/edit# Daniel H's analysis of challenges and approaches

RFC Progress

Other Business

• Architecture of Aries core library
  • What is our fastest path to a library that framework implementors could consider using?
  • Daniel's analysis of Aries API Surfaces https://docs.google.com/presentation/d/1ODtHCeB6x7yVGfhyJHFUKn0f070sqZXhff1C8M7jfTY/edit?ts=5d658905#slide=id.p
  • Background in previous meetings: July 31, August 14
  • Progress of Ken's POC
  • Key questions: https://docs.google.com/document/d/1w_n8EztyLbNlRa3FfuuN8YXKUISYRfM5p_6ijIig6jk/edit#

Future Topics

• Next call
• Other:
  • Hubs vs Agents
  • Payments in Aries
  • wallet query language
  • IOT best practices (Robert Mitwicki, Adam Burdett , Lohan Spies )
  • DID Resolution W3C and Sam's concerns: https://github.com/hyperledger/aries-rfcs/issues/130

Action items

• Schedule a deep dive into Aries / Indy architecture (Ken / Richard)

Call Recording