Aries DIDCommV2 Working Group 2023-01-23 meeting

Zoom: https://zoom.us/j/94626752608?pwd=K0t4N3VqRzlscTNYajlxMHNPM08yQT09

Summary:

Introduction
Updates
AIP3
AATH

Date

23 Jan 2023 (6AM Los Angeles, 9AM New York, 2PM London, 3PM CET, 17H Moscow)

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Attendees

Lance Byrd (RootsID) <lance.byrd@rootsid.com>
Rodolfo Miranda (RootsID)<rodolfo.miranda@rootsid.com>
bruce_conrad@byu.edu (Pico Labs) <bruce_conrad@byu.edu>

Welcome / Introductions

Announcements

Release Status and Work Updates

Aries Agent Test Harness (https://aries-interop.info)
Aries Askar secure storage - https://github.com/bcgov/aries-askar
Frameworks:
- Aries-CloudAgent-Python (https://github.com/hyperledger/aries-cloudagent-python, Meetings: ACA-Pug Meetings)
  - Encryption envelope (Askar impl) not fully-developed yet. We could use different libraries (SICPA Rust). SICPA DIDComm impl is what will be used... resolves did peers natively. The keys will have to be transported out of Askar, but that is acceptable for now. SICPA is the most widely used.
    - SICPA for DIDComm and did:peer https://github.com/sicpa-dlab/didcomm-python
    - No near-term Askar support for the DIDComm v2 encryption envelope and core protocols.
  - Protocols related to credential exchange and connection establishment. Distinguish between DIDComm v1 and v2. DID Exchange will be adapted. The main focus is on Out-of-Band protocol.
  - Very important to extend the AATH.
- Aries-Framework-JavaScript (https://github.com/hyperledger/aries-framework-javascript, Meetings: Framework JS Meetings)
  - https://github.com/hyperledger/aries-framework-javascript/pull/1096#issuecomment-1343833016
  - https://github.com/hyperledger/aries-framework-javascript/pull/1211
- Picos as Aries agents (DIDComm v1: https://github.com/Picolab/aries-cloudagent-pico ; DIDComm v2 work in progress)
  - students have returned and they are using SICPA for envelope encryption, pack/unpack and hopeful sending messages
  - DIF Picos working group, useful for IoT devices
- Swift Framework
- Veramo Framework
  - WACI support https://github.com/uport-project/veramo/issues/1106
  - DID Peer support https://github.com/uport-project/veramo/issues/1105
Mobile:
- Aries Mobile Agent React Native, aka Aries Bifold (https://github.com/hyperledger/aries-mobile-agent-react-native, Meetings: Aries Bifold User Group Meetings)
aries-mediator-service – a DIDComm Mediator in a Box
- working on Pickup support
AviaryTech DIDComm TS impl
- https://github.com/aviarytech/didcomm
- https://github.com/aviarytech/did-peer

Discussion Topics

Aries Agent Test Harness

Current DIDComm-V2 specific tests:

DIDComm-V2 tests

aries-agent-test-harness % ./manage tests --tags @DIDComm-V2 
Selecting: ['@DIDComm-V2']

Feature: WACI Issuance
 @T001-IssueCredentialV3 @DIDComm-V2 - WACI issuance flow

Feature: DIDComm V2 Establishing Connections
 @T001-OobV2 @DIDComm-V2 - Establish a connection between two agents using DIDComm V2

Feature: Aries agent present proof v3
 @T001-PresentProofV3 @DIDComm-V2 - Present Proof of specific types and proof is acknowledged with a Citizenship credential type with a DID Exchange Connection

New tag in AATH that are not credential related, maybe:
- DIDCommV2_Peer
- DIDCommV2_Simple
- Didcommv2_base
- Didcommv2_layer2
See https://github.com/tdiesler/aries-agent-test-harness/tree/camel/aries-backchannels/camel#aip-10-status

AIP3

HackMD from the last Aires WG meeting, regarding AIP 3.0

Grand Unified Theory (GUT) Alliance

There is a warning about did peer on the spec now https://identity.foundation/peer-did-method-spec/
https://daniel-hardman.medium.com/sentries-confessionals-vaults-and-envelopes-4a58cf4f8a5a
original did keri impl https://github.com/WebOfTrust/ietf-did-keri
- Needs to transition to a did keri lite (subset of did keri)
- Signify is a typescript impl that might serve as the the keri lite impl
Newer than even AIP3.0. KERI and DIDComm v3.0 (likely)
Link to Daniel’s GUT presentation:

From our last meeting:

Apache Camel: https://camel.apache.org/ and we discussed Daniel Hardman's presentation to W3C that talks about classic API/Swagger Endpoints vs. a DIDComm connected ecosystem https://youtu.be/TBxWgNmsnvU
Our current spreadsheet https://docs.google.com/spreadsheets/d/15noWiG_zhhUpornhrZm9cLEjQ1aa6z9qgJgPCaaIbtY/edit?usp=sharing
AIP3
- HackMD from the last Aires WG meeting, regarding AIP 3.0
- Great document by Hakan, looking at past AIP definitions and beginning to consider AIP3 definition
- Connectionless DIDComm v2 still needs management of the 'connection' between agents. How should agents handle this?
  - Is this worth detailing/discussing or is it just agent specific?
  - OOB/handshake/discovery RFP for Aries agents?
    - WACI and what the overlap and distinction would be between the AIP and WACI.
      - There is some nuance to cred formats you have to support (Indy, BBS+, LD).
      - Can we use Discovery protocol to understand the level of WACI support?
        perhaps we need more detailed information from the discovery protocol
        per application protocol supported (formats, messages, crypto).
        Some WACI information to consider https://identity.foundation/waci-presentation-exchange/#format-property.
    - Encryption envelope selection
bruce_conrad@byu.edu is working with students to implement DIDComm v2 in their Pico environment. Might benefit from JFF work
DIDComm v2 agent discoverability/interop
- https://identity.foundation/didcomm-messaging/spec/v2.0/#iana-media-types
- https://identity.foundation/didcomm-messaging/spec/v2.0/#discover-features-protocol-20
Documentation in terms of Trust Over IP (ToIP) tech stack?
ACA-PUG
- Libraries for message envelope (Askar, Python impl, Rust impl)

Other Business

Future Topics

Action items

Call Recording

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