基于移动Agent的协同访问控制模型

针对目前一些访问控制系统防内不防外或防外不防内、各自为政、单点失效、网络通信负载过重等问题,在RBAC模型基础上提出了一种的基于移动Agent的协同访问控制模型。首先对RBAC进行了层次建模,然后根据移动Agent特性,构建了分级处理的协同访问控制构架。该模型通过群签名机制对合法用户签发授权票据,以此进行访问控制。实验表明,该模型具有良好的可伸缩性、健壮性和安全性,有效地促进了访问控制技术的发展。

A Cooperative Access Control Model Based on Mobile Agent

This paper proposes a mobile agent-based cooperative access control model on the basis of RBAC(Role-based Access Control) model in allusion to current problems in access control system such as inner defense,but no outer defense or outer defense but no inner defense,method doing things in his own way,invalidation for single point,overbalance in network communication load,etc.This paper first models RBAC to a hierarchical model,and then constructs a cooperative access control architecture of hierarchical processing by the characters of mobile agent.The model adopts group signature mechanism to sign and distribute granted tickets for valid users as credentials to access control. The experiments show the model has high flexibility,toughness and security.The model effectively promotes the progress of access control technology.