基于角色的差异主体协同访问控制模型  

Extended RBAC model for differential subjects in collaborative environment

作　　者：陈娟娟[1] 程西军[1] 汪利虎 

机构地区：[1]海军工程大学计算机工程系,武汉430033 [2]海军指挥所,北京100841

出　　处：《计算机应用》2009年第B06期109-110,共2页journal of Computer Applications

基　　金：海军工程大学自然科学基金资助项目(20080406040002)

摘　　要：针对协同访问控制协作、同步、差异的特点,区分访问主体、访问权限的单一性与复合性,对权限进行阈值扩充,在RBAC基础之上,形式化描述了基于角色的差异主体协同访问控制模型。该模型是t-安全的,具有匿名性,在一定程度上避免协同主体相互串通。For synchronism, collaboration and difference in collaborative access control, this paper distinguished compound access subjects from the single, compound access permissions from the single. By introducing the threshold concept into Role-Based Access Control （RBAC） model, the paper presented a formal description of access control model for differential subjects in collaborative environment. The model is t-secure, and the anonymity can avoid subjects＇ mutual collusion to some extent.

关 键 词：访问控制 角色访问控制 协同 差异 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]