当前公开密钥基础设施的主要问题分析  

On the Research and Analysis of the Main Problem of PKI

作　　者：沙瀛[1] 白硕[1] 

机构地区：[1]中国科学院计算技术研究所,北京100080

出　　处：《微电子学与计算机》2002年第6期18-21,共4页Microelectronics & Computer

摘　　要：PKI作为一种网络安全基础设施,日益受到关注,但是PKI还有许多问题有待解决。文章首先由信任的定义及其数学属性入手,指出PKI先天固有的不足。然后指出各种PKI系统都具有的问题,当前现有标准X.509、PGP、SPKI/SDSI的各自缺陷。As a network security infrastructure,more and more people have paid attention to PKI. But there are still a lot of deficiencies with PKI. This paper first introduces the definition and properties of trust,pointing out the inherent flaws of PKI. Then,the paper points out the disadvantage that held by most system based on PKI and the shortcomings of the current standard X.509,PGP and SPKI/SDSI. Finally,the paper indicates the problem of the browser. In a word,more research should be made on PKI.

关 键 词：公开密钥基础设施 信任 证书 网络安全 数字签名 计算机网络 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]