A Subject-Centric Credential Management Method based on the Verifiable Credentials

Abstract

In this paper, a subject-centric structure is proposed that improves the holder-centric structural problems of verifiable credentials developed for self-sovereign identities. Holder-Centric structured verifiable credentials represent a structure in which a holder can control the credentials even if it is not a subject. This structure allows the holder to attempt authentication or transfer credentials without the subject's permission. The subject may lose some control over the credential, thus losing the meaning of self-sovereign identity. We propose a subject-centric structure that allows the subject to control over the transferred verifiable credentials.