| 角色访问控制在协同环境中的扩展 |
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| 引用本文： | 李必云,石俊萍.角色访问控制在协同环境中的扩展[J].通信技术,2010,43(1):84-85,88. |
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| 作者姓名： | 李必云 石俊萍 |
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| 作者单位： | 1. 吉首大学,数学与计算机科学学院,湖南,吉首,416000
2. 吉首大学,物理科学与信息工程学院,湖南,吉首,416000 |
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| 摘 要： | 信息安全技术领域一个非常重要的方面是访问控制。在大型的分布式协同系统中，用户与角色的数量众多，关系复杂，RBAC模型存在一定的局限性。以基于角色的访问控制模型为基础，针对分布式协同环境下的特征，将RBAC在分布式协同环境下进行了扩展，提出一种利用角色互斥的方法来实现职责分离原则，将角色互斥分为静态和动态互斥并给出形式化描述，使得扩展后的模型在权限方面提高了安全性。
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| 关 键 词： | 协同环境 访问控制 职责分离 |
Extension of Role-Based Access Control in Collaborative Circumstance |
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| LI Bi-yun,SHI Jun-ping.Extension of Role-Based Access Control in Collaborative Circumstance[J].Communications Technology,2010,43(1):84-85,88. |
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| Authors: | LI Bi-yun SHI Jun-ping |
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| Affiliation: | LI Bi-yuna,SHI Jun-pingb(a.College of Mathematics , Computer Science,b.College of Physics Science & Information Engineering,Jishou University,Jishou Hunan 416000,China) |
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| Abstract: | Access control is a very important research direction of the information security field.In large network-based distributed collaborative application systems,there are large quantity of users and roles,and the relations of users and roles are quite complex,thus RBAC is not suitable for this situation.Based on RBAC model and according to characteristics of the distributed collaborative circumstance,the RBAC model is extended in the distributed collaborative circumstance.A new method based on mutually exclusiv... |
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| Keywords: | collaborative circumstance access control separation of duties |
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