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Risk Analysis of Information System Security Based on Distance of Information-State Transition 被引量:2
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作者 ZHOU Chao PAN Ping +1 位作者 MAO Xinyue HUANG Liang 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2018年第3期210-218,共9页
The configuration of information system security policy is directly related to the information asset risk, and the configuration required by the classified security protection is able to ensure the optimal and minimum... The configuration of information system security policy is directly related to the information asset risk, and the configuration required by the classified security protection is able to ensure the optimal and minimum policy in the corresponding security level. Through the random survey on the information assets of multiple departments, this paper proposes the relative deviation distance of security policy configuration as risk measure parameter based on the distance of information-state transition(DIT) theory. By quantitatively analyzing the information asset weight, deviation degree and DIT, we establish the evaluation model for information system. With example analysis, the results prove that this method conducts effective risk evaluation on the information system intuitively and reliably, avoids the threat caused by subjective measurement, and shows performance benefits compared with existing solutions. It is not only theoretically but also practically feasible to realize the scientific analysis of security risk for the information system. 展开更多
关键词 distance of information-state transition(DIT) deviation distance information asset risk analysis
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