This paper analyzes the features and purposes of SPKI/SDSI certificates system. It introduces the concepts of SPKI/SDSI name certificate and name certificate reduction closure.
论文简要分析了SPKI/SDSI证书系统的特点及用途，介绍了SPKI/SDSI名字证书及名字证书缩减闭包的概念。
SPKI is a sort of distributed authorization mechanism, which combines authorization certificate and name certificate to realize identity validation and authorization management.
SPKI是一种分布式的授权机制，采用授权证书和名字证书结合的方式来实现身份认证和权限控制。
Based on SPKI technology, proposing multicast distributed access control system: MDAC, as wall as, proposing a delegation certificate path (DCP) searching algorithm based on binary tree.
基于SPKI技术提出了组播分布式访问控制系统MDAC，并提出了基于二叉授权委托树的委托证书路径(DCP)查找算法。
Based on SPKI technology, proposing multicast distributed access control system: MDAC, as wall as, proposing a delegation certificate path (DCP) searching algorithm based on binary tree.
基于SPKI技术提出了组播分布式访问控制系统MDAC，并提出了基于二叉授权委托树的委托证书路径(DCP)查找算法。
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