Trust Registry TF — Darrell O'Donnell

• The protocol The ToIP Trust Registry Protocol Specification is ready to be circulated.
• GCCN has reviewed it and and Vitor Pamplona has done a simple implementation.
• We discussed getting reviews from folks in the EU SSI communities.
• ACTION: Antti Kettunen will share the link with to the Google doc version of the ToIP Trust Registry Protocol Specification with others in the Findy community.
• ACTION: Daniel Bachenheimer will share it with ESSIF will share the link to the Google doc version of the ToIP Trust Registry Protocol Specification with ESSIF, EBSI, and INATBA
• ACTION: Darrell O'Donnell will send email sharing the Google doc version of the ToIP Trust Registry Protocol Specification with the Aries Interop communities.

ACDC TF — Drummond Reed

• Drummond Reed reported that ACDC TF members including Sam Smith Philip Feairheller

• IIW TODO and Kevin Griffin gave several presentations on ACDC at Internet Identity Workshop.
• Attendees recognized that ACDC is a "fourth credential flavor" in addition to the three flavors supported in the W3C Verifiable Credentials Data Model 1.0 specification (the ISO mDL spec is a fifth).

Design Principles TF — Drummond Reed

• Progress was somewhat delayed by Internet Identity Workshop last week, but the first draft of the Design Principles for the ToIP Stack should be completed this week.
• Work is starting on revised graphics throughout—see the agenda items below.
• Antti Kettunen has made a comment on the second principle and will write it up. He is excited about building the "API of Me".

Technology Architecture TF — Drummond Reed

• This TF is now going to start moving full speed — see agenda item below.

• Premature Standardization & Premature Interoperability (Darrell)
  • We still have a long ways to go forward on standards.
  • We have not done anything dead wrong, but we don't have real interoperability yet.
  • Six or seven governments are operating Hyperledger Indy and Hyperledger Aries code bases but are not yet actually fully portable.
  • Steve McCown pointed out that we have a limited set of companies and developers building out ToIP and they seem to be compartmentalized by platform.
  • Darrell agreed with Steve, but pointed out the Aries Interop Test Suite. He hopes that it will enable the different platform implementations to actually interop.
  • Darrell shared a story about the interop challenges in the geospatial mapping standards arena. All of the web mapping servers achieved interop at a specific version of the spec that proved to be sufficient for the market needs.
  • Steve agreed that the different platform implementations are all similar. His company has been using a Mozilla toolkit called Uniffi that can lets you use the same toolkit in multiple places. It provides something more stable across the multiple toolkits — it is the easiest way to take a common library and implement it everywhere.
    • Here are some tutorials Steve created as an intro to making portable libraries.
  • Darrell would like Steve to share that with the Aries Interop effort.
  • Antti observed that the EU Digital Identity Wallet initiative is amplifying efforts around feature comparisons vs. ISO mDL standards. If we look too far down the road, we're going to lose the battle to ISO mDL.
• mDL sessions — Drummond Reed reported that there were several sessions on mDL moderated by Andrew Hughes, who is now Director of Standards at Ping Identity.
  • the mDL family of specs (not all of which are finalized yet) will tackle everything needed to establish real market interop, including the protocols.
  • There was consensus that this was the level of interop that the Aries stack needs to reach — and the ToIP stack as quickly as we can define a V1.
• DIDComm — Drummond Reed
  • Daniel Hardman gave a fantastic deck called Myth-conceptions - deck by Daniel Hardman given at IIW
  other sessions 
  •  that summarized the design goals for DIDComm V2. 
  • In particular it contains a great feature comparison chart with other protocols including the IETF MLS (Messaging Layer Security) specification. See screenshot below.
• BBS+ with LD Signatures — Drummond Reed
  • Drummond did not attend this session but reported that Brent Zundel did and he said that the two Japanese cryptographers that gave this session showed a very compelling demonstration of how they solved the privacy leakage problems in the MATTR implementation.

• This is the final deliverable in the Core Four.
• One key task we can begin working on now is a technical diagram of the ToIP Technology Stack as a protocol stack—we need this for the Design Principles for the ToIP Stack paper.
• Should we begin having weekly meetings of this TF in order to finish this deliverable in November? The answer was yes.
• ACTION: Darrell O'Donnell and Drummond Reed to schedule a weekly ToIP Technology Stack TF meeting in the 7AM PT / 10AM ET time slot.
• Should we establish a ToIP Architects Council consisting of ToIP members who are recognized architects for decentralized digital trust infrastructure who we want closely reviewing this specification?
• We will take up this question in the new ToIP Technology Stack TF meeting.