基于PKI信任机制中动态桥模型的研究  

Research on dynamic bridge based on PKI trust mechanisms

作　　者：褚大伟[1] 曾广周[1] 王婧[1] 

机构地区：[1]山东大学计算机科学与技术学院,山东济南250061

出　　处：《计算机工程与设计》2006年第5期777-779,共3页Computer Engineering and Design

基　　金：山东省自然科学基金项目(Y2001G03);山东省科学技术发展计划基金项目(031110123)

摘　　要：当前基于PKI信任机制的交叉认证在路径构造时存在着一定的规模性问题,即使对桥CA进行拓扑简化,随着交叉认证网络大小和复杂度的不断增长,点与点之间可能路线的数量也在迅速增加,以使路径构造的需求时间超过了实时系统可以容忍的延迟度。引入了“动态桥”概念,它在一个交叉认证拓扑上自动建立转换,在一个简单的结构里,有计划的反映出相同的信任排列和约束,使得可能路线的数量大大减小。Current cross-certificates based on PKI trust mechanisms suffer from a scaling problem. Even the topological simplification of bridge CAs was given, as cross certificate meshes grow in size and complexity, the number of possible routes between points increases quickly, so that the time required for path discovery can increase beyond a tolerable delay for real-time operation. A dynamic bridge was introduced, which is an automatically created transformation of a cross certificate topology and is designed to reflect the same trust arrangements and constraints. But in a simplified structure, the number of possible routes was reduced drastically.

关 键 词：动态桥 信任锚 路径构造 桥CA 交叉认证 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]