Research on IoT security situation awareness method based on evidence theory

The security problem of IoT became more and more serious with its rapid development.Considering that the current IoT security situation awareness system lacks generality and excessively relies on expert knowledge, a IoT security situation awareness method based on improved D-S evidence theory was pr...

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Main Authors: Jian LI, Tinglu DONG, Jie LI
Format: Article
Language:English
Published: POSTS&TELECOM PRESS Co., LTD 2022-04-01
Series:网络与信息安全学报
Subjects:
Online Access:http://www.cjnis.com.cn/thesisDetails#10.11959/j.issn.2096-109x.2022022
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author Jian LI
Tinglu DONG
Jie LI
author_facet Jian LI
Tinglu DONG
Jie LI
author_sort Jian LI
collection DOAJ
description The security problem of IoT became more and more serious with its rapid development.Considering that the current IoT security situation awareness system lacks generality and excessively relies on expert knowledge, a IoT security situation awareness method based on improved D-S evidence theory was proposed in this paper.Fuzzy Gaussian membership function was used to calculate the vulnerability information membership matrix, which was normalized as evidence distribution matrix.The improved Topsis method was used to measure the evidence credibility.In order to fully restrain the credibility of conflicting evidence and improve the credibility of mutually supporting evidence, local credibility between two evidence was aggregated and the expected positive and negative solution vectors were improved according to the situation assessment scenario.And the weighted average method was used for vulnerability information fusion, to obtain the result of situational assessment.The result of situational awareness was fused with the time discount and high-risk vulnerability information discount evidence theory.At the same time, the IoT vulnerability information at different moments was considered comprehensively, the evidence was adaptively and dynamically weighted with the ratio information of high-risk vulnerability.The experimental results show that in the fusion of different numbers of evidence bodies and four common conflicting evidence, the improved Topsis method has higher fusion probability on credible proposition.In the aspect of situation assessment, the risk degree of current system is accurately assessed.And in the aspect of situational awareness, this discount evidence theory can predict the probability of high risk and critical risk, which is more effective than the traditional D-S evidence theory.According to this theory, a IoT security situational awareness method process was proposed, which would be used to guide engineering practice.In the future, the relationship between vulnerabilities can be considered and richer information between vulnerabilities can be extracted for vulnerability exploiting, so that the result of situation assessment is more accurate and reasonable.On the other hand, for situational awareness, game theory can be adopted in the process of dynamic game between the attacker and defender.
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spelling doaj-art-5bd561a4100542c494cc9e108f38fdce2025-01-15T03:15:27ZengPOSTS&TELECOM PRESS Co., LTD网络与信息安全学报2096-109X2022-04-018394759570313Research on IoT security situation awareness method based on evidence theoryJian LITinglu DONGJie LIThe security problem of IoT became more and more serious with its rapid development.Considering that the current IoT security situation awareness system lacks generality and excessively relies on expert knowledge, a IoT security situation awareness method based on improved D-S evidence theory was proposed in this paper.Fuzzy Gaussian membership function was used to calculate the vulnerability information membership matrix, which was normalized as evidence distribution matrix.The improved Topsis method was used to measure the evidence credibility.In order to fully restrain the credibility of conflicting evidence and improve the credibility of mutually supporting evidence, local credibility between two evidence was aggregated and the expected positive and negative solution vectors were improved according to the situation assessment scenario.And the weighted average method was used for vulnerability information fusion, to obtain the result of situational assessment.The result of situational awareness was fused with the time discount and high-risk vulnerability information discount evidence theory.At the same time, the IoT vulnerability information at different moments was considered comprehensively, the evidence was adaptively and dynamically weighted with the ratio information of high-risk vulnerability.The experimental results show that in the fusion of different numbers of evidence bodies and four common conflicting evidence, the improved Topsis method has higher fusion probability on credible proposition.In the aspect of situation assessment, the risk degree of current system is accurately assessed.And in the aspect of situational awareness, this discount evidence theory can predict the probability of high risk and critical risk, which is more effective than the traditional D-S evidence theory.According to this theory, a IoT security situational awareness method process was proposed, which would be used to guide engineering practice.In the future, the relationship between vulnerabilities can be considered and richer information between vulnerabilities can be extracted for vulnerability exploiting, so that the result of situation assessment is more accurate and reasonable.On the other hand, for situational awareness, game theory can be adopted in the process of dynamic game between the attacker and defender.http://www.cjnis.com.cn/thesisDetails#10.11959/j.issn.2096-109x.2022022D-S evidence theorysituation awarenessIoT securitytime evolutionCVSS
spellingShingle Jian LI
Tinglu DONG
Jie LI
Research on IoT security situation awareness method based on evidence theory
网络与信息安全学报
D-S evidence theory
situation awareness
IoT security
time evolution
CVSS
title Research on IoT security situation awareness method based on evidence theory
title_full Research on IoT security situation awareness method based on evidence theory
title_fullStr Research on IoT security situation awareness method based on evidence theory
title_full_unstemmed Research on IoT security situation awareness method based on evidence theory
title_short Research on IoT security situation awareness method based on evidence theory
title_sort research on iot security situation awareness method based on evidence theory
topic D-S evidence theory
situation awareness
IoT security
time evolution
CVSS
url http://www.cjnis.com.cn/thesisDetails#10.11959/j.issn.2096-109x.2022022
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AT tingludong researchoniotsecuritysituationawarenessmethodbasedonevidencetheory
AT jieli researchoniotsecuritysituationawarenessmethodbasedonevidencetheory