关键词: 网络身份, 网络身份管理, 中心化, 去中心化, 区块链, 人工智能

Abstract: Cyberspace identity management, as an indispensable infrastructure for cyberspace governance in the era of Internet digital economy, plays an important supporting role in social economic development and social governance. The United States, the European Union, South Korea and other developed countries attach great importance to network identity management, have issued national strategic plans, and actively explore the application of cutting-edge technology. China's research efforts and investment in cyberspace identity management are also increasing, and the cyberspace trusted service ecology is gradually built. Cyberspace identity management system includes centralized and decentralized identity management. The centralized identity management system is the traditional identity management mode in Internet applications, which has the advantages of high efficiency and rapidity, and the disadvantages of centralized management and control of user identity information, which is prone to privacy disclosure. Decentralized identity management system is a new cyberspace identity management system based on blockchain technology. With its decentralized, encrypted, difficult to tamper with, traceable and other features, it can solve the problems of privacy disclosure in centralized identity management, but it also has poor performance and low efficiency. The two identity management systems of centralization and decentralization have their own advantages and disadvantages. They complement each other. The emergence of blockchain, artificial intelligence and other cutting-edge technologies will vigorously promote the innovation and development of cyberspace identity management system, and make it more intelligent and secure.

Key words: cyberspace identity, cyberspace identity management, centralized, decentralized, blockchain, artificial intelligence