网络固有的开放性、可扩充性,使得其安全问题日趋明显。身份认证作为网络安全管理的重要关卡,用于鉴别用户身份,防止未经授权的非法访问。因此,安全的用户身份认证显得尤为重要。本文依据学院自选科研课题“远程网络控制(编号 02004)”的研究成果,主要介绍了网络安全中的用户身份认证的各种实现方法、技术现状及发展趋势,综合评价了某些认证机制和方案的优劣。 The inherent openness and scalability of the network have made its security issues more and more obvious. As an important checkpoint for network security management, identity authentication is used to authenticate users and prevent unauthorized and unauthorized access. Therefore, secure user authentication is particularly important. Based on the research project of “Self-selected Scientific Research Subjects” and “Remote Network Control (No. 02004)”, this paper mainly introduces various implementation methods, technical status and development trend of user authentication in network security and evaluates some authentication mechanisms And the pros and cons of the program.