计算机与现代化Issue(6)：7-11,5.DOI:10.3969/j.issn.1006-2475.2015.06.002
一种基于多维信任度的动态RBAC模型
A Dynamic RBAC Model Based on Multi-dimensional Trust
摘要
Abstract
Role-based access control technology has been a widely used authorization method since it was proposed. At the aspect of authorization with trust mechanism, the time characteristic problem is not considered in traditional or improved RBAC model. And the global trust is obtained by simply weighting the trust indicator. This kind of algorithm thinks about problem too simply and can’ t well reflect the flexibility of dynamic permission. Aiming at this problem, a dynamic RBAC model based on multi-di-mensional trust is proposed, which is an extension of role management model ARBAC97. The model introduces time characteristic factors to improve the existing calculation method of trust. Besides, it synthetically computes a variety of trust characteristics of users, so as to fulfil flexible and dynamic authorization mechanism. The simulation experiments show that for MDT-RBAC the ef-fectiveness of preventing malicious nodes from attacking is superior to the existing models.关键词
授权方式/访问控制/多维信任度/时间特性Key words
authorization mechanism/access control/multi-dimensional trust/time characteristic分类
信息技术与安全科学引用本文复制引用
叶重阳,庄毅..一种基于多维信任度的动态RBAC模型[J].计算机与现代化,2015,(6):7-11,5.基金项目
国家自然科学基金青年科学基金资助项目(61202351) （61202351）
江苏省普通高校研究生科研创新计划项目( CXZZ13_0171) （ CXZZ13_0171）
