Abstract: In this paper, the development of public key cryptosystem is introduced, and two kinds of public key cryptosystem, identity-based and certificate-based, are compared. And gives the analogy and the difference of the two systems, analyzes some potential questions of identity-based system, puts forword a solution combining the two systems advantage.

摘要： 介绍了公钥体系的发展以及基于身份和基于证书两种公钥体系的相似之处和不同点,分析了基于身份公钥体系的一些潜在的问题, 并提出了结合二者优点的可行的建设方案。

关键词: 公钥密码系统, 基于证书, 基于身份

CLC Number: 

• TP309