| 一个信息安全函数及应用模型 |
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| 引用本文： | 刘益和,沈昌祥.一个信息安全函数及应用模型[J].计算机辅助设计与图形学学报,2005,17(12):2734-2738. |
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| 作者姓名： | 刘益和 沈昌祥 |
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| 作者单位： | 1. 内江师范学院计算机与信息科学系,内江,641112;四川大学信息安全研究所,成都,610064
2. 海军计算技术研究所第一研究室,北京,100841 |
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| 基金项目： | 国家重点基础研究发展规划项目（G1999035801）;四川省应用基础研究计划（04JY029-096） |
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| 摘 要： | 提出信息关心程度的概念,给出了基于机密性、完整性和可用性的矩阵信息安全函数,定义了读写公理.对于任意情况,新函数与BLP模型和Biba模型的信息安全函数对应.最后利用此函数值划分安全类,用2个客体的函数值描述信息流策略,由此得到一个应用信息流模型.经严格的数学证明,该模型是合理的和安全的,是基于BLP信息流模型和Biba信息流模型的一个扩展.
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| 关 键 词： | 信息流模型 BLP模型 Biba模型 机密性 完整性 有用性 |
| 收稿时间： | 2004-09-17 |
| 修稿时间： | 2004-09-172005-04-25 |
An Information Security Function and Application Model |
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| Liu Yihe,Shen Changxiang.An Information Security Function and Application Model[J].Journal of Computer-Aided Design & Computer Graphics,2005,17(12):2734-2738. |
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| Authors: | Liu Yihe Shen Changxiang |
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| Affiliation: | 1.Department of Computer and Information Science, Neijiang Teachers College, Neijing 641112;2.Institute of Information Security, Sichuan University, Chengdu 610064;3.First Laboratory, Computing Technology Research Institute of Navy, Beijing 100841 |
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| Abstract: | By introduction of a new concept on the concern degree of information, the paper presents a novel matrix information security function, based on the confidentiality, integrality and availability, and at the same time a read-write axiom is defined. For arbitrary circumstances, the new security function corresponds to that in BLP model and Biba model. The security function value is used to make the safety classification of an object and the information flow policy is specified by the function value of two objects. As a result, an application information flow model is obtained. By a strict proof in mathematics, this model proves to be viable and safe. It is an expansion of the information flow model based on BLP model and the information flow model based on Biba model. |
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| Keywords: | lattice model BLP model Biba model confidentiality integrality availability |
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