11B/ Group Credentials/Multi-Issuer Credentials

Group Credentials/Multi-Issuer Credentials

Wednesday 11B

Convener: Benji Kok

Notes-taker(s): 

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

Current ssi solutions are geared to allow the issuance of a specific verifiable credential by a single issuer. There are use cases that would benefit from enabling the aggregation of multiple credentials into a single credential so that the holder can’t delete sub credentials of the aggregated credential. Is it possible to implement such an aggregation while allowing the holder to present only certain sub credentials of the aggregated credential as required?

An example use case is the issuance of credit history credentials. If each creditor issues separate credentials, the holder can delete the “bad” credentials and only present the “good” credentials. By enabling all creditors to contribute separately to a single credit history credential, the holder must either delete/present the whole credential.