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| 带时间特性的角色访问控制 |
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黄建1,2, 卿斯汉1,2, 温红子1,2
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1.中国科学院,软件研究所,北京,100080;2.中国科学院,信息安全技术工程研究中心,北京,100080
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| 摘要: |
| 基于角色的访问控制模型的研究工作近年来得到了广泛的重视,但主要工作均立足于与时间特性无关的其他方面.形式化描述了一个引入时间后的角色访问控制模型.在该模型中对原有授权约束进行了时间扩充.提出的相应算法解决了时间授权约束和会话的状态转变问题.同时分析了模型的一致性状态,并讨论了一致性状态维护问题. |
| 关键词: 信息安全 访问控制 角色 约束 时间 一致性 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.60083007 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No.GG1999035810 (国家重点基础研究发展规划(973)) |
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| Timed Role-Based Access Control |
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HUANG Jian,QING Si-Han,WEN Hong-Zi
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| Abstract: |
| The research work of RBAC is greatly emphasized in recent years. However, the main work focuses on some characters which have nothing to do with the time character. A RBAC model with time character called TRBAC is described and the former constraint is extended so that it can describe the time character. Some algorithms are developed to solve the state change problem of the time-constraint and the sessions. The consistent state of the model is analyzed and the problem for maintaining the consistent state is discussed. |
| Key words: information security access control role constraint time consistency |
