A universal decentralized authentication and authorization protocol based on Blockchain

Authentication and authorization (A&A) are the most important properties to guarantee the security of Internet activities today. However, popular authentication and authorization protocols are all centralized nowadays which brings extra security issues such as personal data leak, unauthorized access, identity theft, etc. In this paper, we proposed a new universal decentralized authentication and authorization protocol based on the Blockchain technology to reduce the security risks caused by centralization.