摘要
在标准RBAC基础上引入授权信任约束条件,构造一种基于用户可信度的细粒度访问控制模型TBFAC;给出了TBFAC的模型框架;设计了一种综合多种因素的用户可信度评估方法;并简要描述了模型的应用问题。TBFAC机制将信任理论应用于访问控制技术,实现了实体信任与行为信任的融合,为访问控制技术的应用提供了一种新的解决方案。
A trust constraint on the permission authorization was introduced into the standard RBAC model to formalize a user trust-degree based fine-grained access control model(TBFAC).The framework of TBFAC was presented;A method to compute user's trust-degree according to a number of factors was designed;Finally, the application of TBFAC in distributed open system was discussed in brief.TBFAC melts behavior trust into identity trust, and provides a new solution for the applications of access control techniques.
出处
《通信学报》
EI
CSCD
北大核心
2009年第S1期51-57,共7页
Journal on Communications
基金
国家高技术研究发展计划("863"计划)基金资助项目(2007AA01Z429
2007AA01Z405)
国家自然科学基金重点资助项目(60633020)
国家自然科学基金资助项目(60573036
60702059
60503012)~~
关键词
访问控制
细粒度
可信度
access control
fain-grained
trust-degree
