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Summary

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Excerpt
Present Proof V2 DIF presentation-exchange

Note: This call was recorded: 

Date

17 24 Jun 2020 (12PM Los Angeles, 3PM New York, Tuesday at 7AM Sydney)

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Attendees

• George Aristy (SecureKey) <george.aristy@securekey.com>
• Sam Curren (Indicio) <sam@indicio.tech>
• Troy Ronda (SecureKey) <troy.ronda@securekey.com>
• Stephen Curran (Cloud Compass Computing Inc.) <swcurran@cloudcompass.ca>
• Darrell O'Donnell (Continuum Loop / CULedger) <darrell.odonnell@continuumloop.com>
• John Callahan (Veridium) <jcallahan@veridiumid.com>
• Victor Martinez (SICPA) <victor.martinez@sicpa.com>
• Drummond Reed (Evernym) <drummond.reed@evernym.com> 
• Nathan George (Kiva) <nathang@kiva.org>
• Steve McCown (Anonyome Labs) <smccown@anonyome.com>
• lukas.ml.mueller (BMW) <lukas.ml.mueller@bmw.de>
• Alain Neyroud (IBM) <neyroud@us.ibm.com>
• Camilo Parra (Kiva) <camilop@kiva.org>

Welcome / Introductions

Announcements

Related Meetings Review

• Ursa - 
• Semantics - Next meeting: Never - transitioning to be in the ToIP Foundation - see RocketChat channel for details and how to join the successor group
• DID UX Call - Active?
• SSI in IoT WG
• Indy Contributors - Every 2nd Tuesday 8am US/Pacific - Monitoring Indy
• Identity WG / Identity WG Implementer calls (Wed / Thurs) - This Next week! 9 am US/Mountain
• DIF DIDComm WG - Monday's at Noon US/Pacific - Sam Curren (Mon) - DID Doc services, etc.

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• Aries Protocol Test Suite
  • Instructions, docker added - Try It!
  • Issue, credential, and proof tests are merged.
• Aries Agent Test Harness - https://github.com/bcgov/aries-agent-test-harness
  • Test compatibility between any two agents
  • Work on Present Proof tests.  Adding 4th agent personna (Acme, Bob, Faber and Mallory)Bounty for implementing the Aries Framework .NET backchannel (and maybe others) – Apply Now
• Aries Shared:
  
  • Aries Shared:
    • indy-vdr (Andrew Whitehead)  https://github.com/hyperledger/indy-vdr
      • Help Wanted: Update `did:sov` method of the DIF universal resolver to use indy-vdr instead of indy-sdk
    • indy-credx - https://github.com/bcgov/indy-credx
      • Experimental ACA-Py branch created that can do credential exchange with indy-credx
    • indy-shared-rs - https://github.com/bcgov/indy-shared-rs
      • Shared features across indy-vdr and indy-credx
      • pack/unpack on Ursa (not libsodium)
    • aries-credx-framework-rust - https://github.com/sovrin-foundation/aries-credx-framework-rs
    • Aries Secure Storage initiatives:
      • Soon to be pubic - from Andrew Whitehead
• Aries-CloudAgent-Python (bc.gov)
  • Release 0.5.2 is near
    • Updates on revocation
    • Initial JSON-LD VC support added – signing, verifying only - done by Sam Curren supported by SICPA (Switzerland)
    • A lot of error handling cleanup
    • Provision of a local DID
• Aries-Framework-Go (Troy) #aries-go
  • Implementing the Out-Of-Band protocol
  • Implementing issue-credential and present-proof protocols
  • Edge agent in work based aries-framework-go using WASM with support for DIDs, VCs and DIDComm support being addedInvestigating (and implementing) mobile builds and BBS+ JSON-LD signatures
  • Implementing ECDH-1PU
  • Attachment for present-proof protocol
• Aries-SDK-Ruby (Jack)
  • Added DID/Verkey sign_and_submit to aries_sdk_ruby and published new gem (0.0.8)
  • Created aries-rails-docker experiment that support Rails 4 with Indy 1.8.1 on Heroku & DokkuWorking on JSON-LD Signatures revisit
    • https://medium.com/@johnrcallahan/linked-data-signatures-with-ruby-3fa4dbc8e1fb
    • https://github.com/johncallahan/ruby-jsonld-signatures
• Aries-Framework-DotNet (Tomislav)
  • BBS+ support added - a wrapper.  Tech spike work. https://github.com/streetcred-id/bbs-signatures-dotnet
• Aries-StaticAgent-Python
• Aries-Toolbox
  • PR for Connections Update
  • Converted to a web application by Robert Mitwicki - repo https://github.com/thclab/aries 
  • Upcoming cleanup items
• Aries-SDK-Java
• Aries-Framework-JavaScript - Framework JS Meetings
  • Current focus is on mediator use case (NodeJS)
  • Plan for 1.0 defined; refactoring to be done
• Rich Schemas and W3C Verifiable Credentials (Brent & Ken)
  • Some work has been done to support the W3C Verifiable Credentials Data Model specification
• Aries-MobileAgent-Xamarin (Aries MAX) - https://github.com/hyperledger/aries-mobileagent-xamarin
  • Ideas:
    • Automatic offer acceptance/managing credentials
    • Machine readable governance
• Ursa
  • To replace libsodium, need to have a replacement for the anoncrypt / authcrypt sealed box for pack / unpack.
    • Can be done in Ursa with two steps, but might add as a single function call.
  • Revocation 2.0 Support - new approach: Non-Revocation Range Merkle Tree - Ursa RFC here
    • Performance looks good at 1M creds/registry - 16M might be possible.

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• Present Proof V2 https://github.com/hyperledger/aries-rfcs/pull/486
  • Can we merge this?
• DIF Presentation Exchange
  • Daniel Discussion/PR
  • Capable of being passed in the Present Proof Protocol as an attachment
• W3C CCG vp-request
• OOB Community Update - Moving Forward?

Next Week

• Requests?
• Credential Exchange Load testing - Thomas Shelton
• Tracing Discussion. Warpage Warp-age Prevention?

Future Topics

• Migrating to new JWE envelope format: https://github.com/hyperledger/aries-rfcs/issues/478
• DKMS status
• Credential Fraud:  Example how in ACA-Py to verify same link secret across multiple credentials in presentation
• Schema interop - how to reuse a schema across different networks Robert Mitwicki(RFC in progress)
• Using WebSocket as a way to communicate back to the mobile/desktop wallet (Agent (services or user) as a proxy for communication between service and digital wallet) Robert Mitwicki 

Action items