计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2010年
3期
87-89,114
,共4页
基于角色的访问控制%委托%任务%约束
基于角色的訪問控製%委託%任務%約束
기우각색적방문공제%위탁%임무%약속
role based access control%delegation%task%constraints
针对目前RBAC委托模型存在的问题,提出了RTBCDM模型及其形式化表述,以一种简单的方式处理角色对其特权的委托.模型支持动态环境下更细粒度的委托,普通约束、动态约束、支持部分特权的多重传递以及基于任务基础的任务互斥约束特性,极大地增强了委托的可控性和模型的表达能力.
針對目前RBAC委託模型存在的問題,提齣瞭RTBCDM模型及其形式化錶述,以一種簡單的方式處理角色對其特權的委託.模型支持動態環境下更細粒度的委託,普通約束、動態約束、支持部分特權的多重傳遞以及基于任務基礎的任務互斥約束特性,極大地增彊瞭委託的可控性和模型的錶達能力.
침대목전RBAC위탁모형존재적문제,제출료RTBCDM모형급기형식화표술,이일충간단적방식처리각색대기특권적위탁.모형지지동태배경하경세립도적위탁,보통약속、동태약속、지지부분특권적다중전체이급기우임무기출적임무호척약속특성,겁대지증강료위탁적가공성화모형적표체능력.
Aiming at existent issues of role-based access control delegation model,Role-Task Based Controlled Delegation Model (RTBCDM) and its formalized description are presented,and a simple mode is used to deal with delegation of role' privilege. This model supports very fine-grained delegation in a dynamic environment,it also supports part privilege's multiple delegation and task-based task excluded constraint characteristic,the dynamic constraints and general constraints of this model has increased its expression and controllability by the square.
