Verify core claim signature onchain

[nickz-t3]

Hi.

I have a case where verification of the zkp is not desirable as it takes 6-9s to do the ZKP proof based on the VC. However in my case I am ok to send the core claim to the verifier. However I need an onchain verifier and it does not seem that verification of the babyjubjub signature onchain (or I would rather say, verifying the core claim onchain) is part of the solution at the moment.

Is it possible to add this feature?

[vmidyllic]

Sharing of credential is not included in current protocol messages, if you need you can do this separately.

Onchain zkp verification is supported for credentials that have bjj signature proofs.

Verification of the signature itself should be possible onchain.

But in signature in BJJ proof is a signature over the core claim which contains a merkle root of VC document (as one of the data slots). And merklization itself is not possible onchain.

read more here about bjj proof