1C/ A proposal for SSI Interoperability based on the German SDI projects with greater than 70 participants

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A Proposal for SSI Interoperability based on the German SDI projects with >70 participants

Tuesday 1C

Conveners: Eugeniu Rusu, Hakan Yildiz, Kai Wagner, Andreas Freitag

Notes-taker(s): Eugeniu Rusu, Hakan Yildiz, Kai Wagner, Andreas Freitag

Tags for the session - technology discussed/ideas considered:
SSI; Interoperability;

Discussion notes, key understandings, outstanding questions, observations, and, if appropriate to this discussion: action items, next steps

We started with a presentation on the german SSI projects that initiated this concrete interop project.

PRESENTATION Link (link valid till Oct.13, 2022): https://jolocom365-my.sharepoint.com/:b:/g/personal/andreas_jolocom365_onmicrosoft_com/EYOzZpPMjjZPoLBSzKIqgOIBCPjURAqD58_ku67Eoz0pOQ

The participants were widely aligned with our perspective on how to achieve interop across projects and implementations. The discussion itself emerged around the following topics:

The approach with the matrix has been seen as positive, along with the alignment towards AIP 2.0. Questions came regarding:

  • Why not BBS+ as of now?

  • Revocation:

  • What about OIDC Stack?

    • Will be supported in Phase 2

      • SIOP DID Profile 2.0 instead of DIDComm

      • OIDC4VP

      • etc.

  • Level of interoperability between showcase projects: What will be the level of interop?

    • AIP2.0 and then some more incl. OIDC Stack

In the end we recorded the areas of interest for potential follow up session:

  • BBS+

  • Revocation

  • DIDComm v2

  • Device Binding

  • Where do we work on interop as a community?

For the follow up session we agreed to propose the following questions:

  • Where do we work on interop as a community?

    • It would be great to have a single point to work on it

  • Which interop type / layer do we address at which community?

The conversation could start with a mapping of existing places:

- DIF Interop WG

- Hyperledger aries

- ToIP

- W3C

- CEN / ETSI

- …