| 格模型的安全性分析 |
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| 引用本文： | 崔国华,余祥宣,宋善德.格模型的安全性分析[J].华中科技大学学报(自然科学版),1993(3). |
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| 作者姓名： | 崔国华 余祥宣 宋善德 |
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| 作者单位： | 华中理工大学计算机科学与工程系
(崔国华，余祥宣)，华中理工大学计算机科学与工程系(宋善德) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 分析了格模型以及格模型的各种实施机制,指出了该模型的二类实施机制在精确性上存在的问题.同时,提出了局部安全性和整体安全性二个不同概念,指出了该模型在整体安全性上的弱点,最后论证了格模型不具有保护信息完整性的能力.
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| 关 键 词： | 格模型 流策略 流控制机制 安全类 精确性 完整性 |
A Security Analysis for the Lattice Model |
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| Cui Guohua Yu Xiangxuan Song Shande.A Security Analysis for the Lattice Model[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1993(3). |
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| Authors: | Cui Guohua Yu Xiangxuan Song Shande |
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| Institution: | Cui Guohua Yu Xiangxuan Song Shande |
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| Abstract: | The lattice model developed by D. E. Denning is an extension of the Bell-Lapadula model. Based on the information flow theory, the lattice model and its various realization mechanisms are discussed. Some deficiencies in the accuracy of the model, whether under static constraints or dynamic constraints, are pointed out. Two distinct concepts, local security and global security, are proposed. After an analysis using these concepts, it is found that there are a few weak points with global security in dynamic constraints and that the model is incapable of protecting the integrity of information. |
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| Keywords: | lattice model flow theory flow control mechanism security class accuracy integrity |
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