Research on Digital Identity Authentication Technology Based On Block Chain

Abstract In the traditional digital identity authentication, there are potential security threats caused by user’s personal privacy data being too centralized and vulnerable to attack, centralization will lead redundancy, poor permeability, lack of master control, high overall cost, abuse central rights. The authentication technology based on block chain can perfectly solve problem appeal. main innovative work includes design a new ID asynchronous Byzantine fault-tolerant algorithm dsbft using cryptography, computer network, other technologies, Block is designed dsbft, decentralized system chain. Hash used for signature acceptance improve efficiency scalability. order dust attack quantum computation, elliptic curve (ECDSA) encryption be combined with cryptography. results show that appeal scheme resist variety attacks has security.