Using OID4VC with Indy/AnonCreds via von-network

[haneumLee]

Hello,

I’m currently experimenting with Credo-ts using the demo-openid example.
By default, the flow works with JWT-based credentials over OID4VC.

However, I would like to know if there are any examples or recommended approaches for using OID4VC with AnonCreds stored on an Indy ledger (e.g., von-network).

Specifically:

• Is it possible to configure an OID4VC flow where credentials are issued/verifiable in AnonCreds format?
• If not, what would be the correct path to combine OID4VC endpoints with an Indy/AnonCreds agent in Credo?
• Are there ongoing discussions or implementations in the community about bridging OID4VC and AnonCreds?

Any guidance, references, or examples would be greatly appreciated.

Thanks in advance!

[timbl-ont]

This is not supported. I am not sure if it is possible on issuance, but may be wrong. It is technically possible on the VP side, but again not supported.

From the OpenID4VC/IETF world the discussion are around BBS+ and LongFellow-zk (JWT and mDOC) as approaches to support ZKP. The current momentum is around using LongFellow for ISO mDOC which is a crypto scheme presented by Google -https://github.com/google/longfellow-zk

[TimoGlastra]

As @timbl-ont, this is not supported. I think it could work if a definition is made with a custom proof_type, credential format etc.. But I'm not sure there's a lot of demand for this feature. Closing for now, feel free to open a new discussion.