LPID, SD-JWT and schema issues

[antti-turpeinen]

Main question is that, should the sd-jwt have credentialSubject or not?

There are some unclear things about schemas.

https://github.com/EWC-consortium/eudi-wallet-rfcs/blob/main/ewc-rfc005-issue-legal-person-identification-data.md tells that legal_person_id and legal_person_name are LPID attributes. Then there is a list of metadata, like schema_id, schema_version and schema_location, revocation_id and revocation_location.

Schema as JSON contains credentialSubject, credentialStatus and credentialSchema. Only LPID attributes are inside credentialSubject. It does not have schema_id, schema_version and schema_location, revocation_id and revocation_location metadata.

"5.10.4 LPID Credential Issuer Discovery Response (SD-JWT VC Credential format profile)" lists claims, where legal_person_id and legal_person_name are in the root, not inside the credentialSubject. It also have credential_status and credential_schema claims.