公开密钥基础设施(PKI)核心——签证机关(CA)

随着电子商务时代的来临，ＰＫＩ技术正逐渐成为计算机网络安全的主角，本文ＰＫＩ核心ＣＡ出发，总结了国内外ＰＫＩ的发展，并给出了代表性的体系结构。建立ＣＡＤ和ＰＫＩ是一个复杂的系统工程，本文最后探讨了建立ＣＡ必须解决的问题。

The Core of Public Key Infrastracture(PKI) -- Certificate Authority(CA)

With the coming of electronic commerce,the PKI technology is gradually playing the leading actor of computer network security. In this paper, in terms of CA being the core of PKI,the development of international and national PKI was summarized, a few of typical architectures were given. Establishing CA and PKI is a very complex system project, so in the end of this paper, the problems which were sufferred from making CA,were discussed.