PKI的发展及问题分析

PKI 技术已日臻成熟并在许多方面得到应用，但是PKI 中也还存在着很多问题有待解
决。本文介绍了PKI 技术的发展及应用，并就PKI 在产品兼容性、复杂性、CA 的信任危机、密钥管理、证书验证机制、证书撤消、X.509 存在问题、相关法律、法规的缺乏、用户认识不足、个人隐私、赔付机制的缺失、成本等几个方面存在的问题，进行了分析。
关键字:PKI （Public Key Infratructure）,CA(Certifivate Authority),证书，网络安
全
the development and question analysis of PKI ZHANG Qiu-yu, Liang Shuang, Wang Li_na (School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050)Abstract：PKI have grown up step by step and applied in a lot of fields, but there are a lot of questions to solve in PKI.This paper introduce development and application of PKI and analysis such questions as products compatibility、 complexity、trust crisis of CA、key management、 certificate validate、certificate revocation、questions of X.509、 scarcity of law、user’s impercipient、private、 scarcity of compensate and cost.
Keywords:PKI （Public Key Infratructure）,CA(Certifivate Authority),Certificate ,Network
Security