Hierarchical Sovereignty Management and Access Control based on Self-Sovereign Identity

Self-sovereign identity is a type of decentralized identity technology and has been proposed to solvevarious problems of the existing public key infrastructure based centralized identity authenticationservice. In addition, the demand for a secure decentralized access control management (ACM)technique has increased according to the demand for such next-generation identity identificationservice. Accordingly, although various ACM techniques that can be applied to decentralized serviceshave been proposed, most fall into the introductory stage of research. In this paper, based on theSOVRIN-based restructured verifiable credential concept proposed in our previous study, we providea hierarchical sovereignty and ACM technique that does not use a smart contract.