A New Role-to-Role Delegation Model Based on RBAC
Role-based access control (RBAC) model is recognized as an efficient access control model for large organizations. PBDM2 is a role-based delegation which is built on RBAC. But in many cases,not all the roles of a user can delegate to others and not every user can accept the delegation. To tackle this problem,this paper proposes a new role-to-role delegation model. The new model is based on RBAC 96 model and PBDM2 with some improvement. We divide roles into three layers and define some constrains to limit arbitrary delegation. Then we represent the model formally and use semaphore primitive to describe the mechanism of delegation and revocation. Finally the algorithm of this role-to-role delegation model is given. The delegation becomes safer in new model
RBAC PBDM2 delegation P A
Tang Guangyi Wang Hongfeng Zhang Hongguo Yu Bo
Harbin University of Science And Technology,Haerbin,150080,China Department of Computer Science,Zhoukou Normal University,ZhouKou 466001,China
国际会议
南宁
英文
108-112
2010-12-10（万方平台首次上网日期，不代表论文的发表时间）