一种新的RBAC角色协同关系及其Petri网模型  

A Novel Role Coordination Relation of RBAC and Its Petri Net Model

作　　者：王小明 赵宗涛[1] 马建峰[3] 

机构地区：[1]西北大学计算机科学系 [2]陕西师范大学计算机科学学院,陕西西安710062 [3]西安电子科技大学计算机网络与信息安全教育部重点实验室

出　　处：《电子学报》2003年第2期225-227,共3页Acta Electronica Sinica

基　　金：国家自然科学基金 (No .699730 0 3);国家"863"计划 (No.2 0 0 2AA1 4 30 2 1 );国防预研C3I基金 (No .EP990 2 7)

摘　　要：角色授权约束是RBAC研究的重要内容 .有效表达多角色授权和激活的序约束是一个难点问题 .提出了新的角色授权协同及其序关系 ,扩展了现有的角色关系概念 ,使RBAC能够表达复杂的角色授权和激活序约束 .其次 。Role authorization constraint is one of focal points of RBAC research.It is a difficult problem to effectively represent the authorization and activation order constraints of multiple roles.Novel role authorization coordination relations were presented and coordination order relations such that existing role relation concepts are expanded.It is able to make RBAC represent complex order constraints when granting or activating multiple roles.The new Petri Net to analyze and simulate the consistence of role authorization coordination as well as its order relation is proposed.

关 键 词：RBAC 授权协同关系 激活协同关系 序关系 时间PETRI网 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]