A Blockchain-Based Hierarchical Authentication Scheme for Multiserver Architecture

In a multiserver architecture, authentication schemes play an important role in the secure communication of system. many schemes, security mutual authentications among participants is based on registration center’s private key. This centralized architecture can create risks due to leakage Blockchain technology, with its decentralized, tamper-proof, and distributed features, provide new solution for schemes. lot users’ permission generally controlled by center (RC), but these control methods cannot be applied decentralized blockchain this paper, blockchain-based scheme proposed. Our provides hierarchical method solve problems user revocation caused no center. The our formally proved under random oracle model. According analysis, resistant attacks such as impersonation man-in-the-middle attacks. addition, performance analysis shows that proposed has less computation overhead.