| 基于随机过程的容侵系统可信性量化方法 |
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| 引用本文： | 彭文灵,王丽娜,张焕国.基于随机过程的容侵系统可信性量化方法[J].计算机工程,2005,31(22):7-8,35. |
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| 作者姓名： | 彭文灵 王丽娜 张焕国 |
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| 作者单位： | 武汉大学计算机学院,武汉430079;赣南师范学院网络中心,赣州341000;武汉大学计算机学院,武汉430079 |
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| 基金项目： | 国家自然科学基金资助项目（60373087,60473023）;江西省自然科学基金资助项目（5l1010）;江西省教育厅科研基金资助项目（2005-222） |
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| 摘 要： | 运用马尔可夫过程分析了容侵系统的可信性，结合SITAR容侵系统体系中的状态迁移模型，给出了一种基于随机过程的容侵系统可信性的可用度量化方法。最后在此基础上讨论了入侵容忍系统的性质。
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| 关 键 词： | 可信性 入侵容忍 量化 随机过程 |
| 文章编号： | 1000-3428（2005）22-0007-02 |
| 收稿时间： | 2004-08-13 |
| 修稿时间： | 2004-08-13 |
Quantifying Dependability of Intrusion Tolerant System Based on Stochastic Processes |
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| PENG Wenling,WANG Lina,ZHANG Huanguo.Quantifying Dependability of Intrusion Tolerant System Based on Stochastic Processes[J].Computer Engineering,2005,31(22):7-8,35. |
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| Authors: | PENG Wenling WANG Lina ZHANG Huanguo |
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| Affiliation: | 1. School of Computer, Wuhan University, Wuhan 430079; 2. Network Center, Gannan Normal College, Ganzhou 341000 |
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| Abstract: | This paper deals with an issues related to quantifying the security dependability of an intrusion tolerant system, such as the state transition model of the SITAR system. A security intrusion and the response of an intrusion tolerant system to an attack is modeled as a stochastic process. By using the theory on the Markov chain, the steady-state availability of an intrusion tolerant system is computed. At last, the character of intrusion tolerant system is also discussed according to the model. |
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| Keywords: | Dependability Intrusion tolerant Quantification Stochastic processes |
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