关键词: 认证体制, 身份认证, 公钥基础设施, 基于标识的密码技术, CFL (Chen, Fan, and Lü)

Abstract: The security problems of internet are more and more serious because of its openness and anonymity. The first step of the network security authentication scheme is certification system. It ensures that the information resources transmitted on network can only be accessed by legitimate users, so that the identity authentication technology is the foundation of the whole information security. It also becomes one important aspect of the network security, this paper summarizes the functions and shortages of PKI certificate authentication system and IBC identity authentication system based on the introduction of them. The characteristics of the CFL are introduced preliminarily.

Key words: authentication system, identity authentication, public key infrastructure (PKI), identitybased cryptograph (IBC), CFL (Chen, Fan, and Lü)