Network Security Situation Assessment Model Based on Extended Hidden Markov
Joint Authors
Wang, Jian
Liao, Yiwei
Zhao, Guosheng
Li, Shu
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-24
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
A network security situation assessment system based on the extended hidden Markov model is designed in this paper.
Firstly, the standard hidden Markov model is expanded from five-tuple to seven-tuple, and two parameters of network defense efficiency and risk loss vector are added so that the model can describe network security situation more completely.
Then, an initial algorithm of state transition matrix was defined, observation vectors were extracted from the fusion of various system security detection data, the network state transition matrix was created and modified by the observation vectors, and a solution procedure of the hidden state probability distribution sequence based on extended hidden Markov model was derived.
Finally, a method of calculating risk loss vector according to the international definition was designed and the current network risk value was calculated by the hidden state probability distribution; then the global security situation was assessed.
The experiment showed that the model satisfied practical applications and the assessment result is accurate and effective.
American Psychological Association (APA)
Liao, Yiwei& Zhao, Guosheng& Wang, Jian& Li, Shu. 2020. Network Security Situation Assessment Model Based on Extended Hidden Markov. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1193230
Modern Language Association (MLA)
Liao, Yiwei…[et al.]. Network Security Situation Assessment Model Based on Extended Hidden Markov. Mathematical Problems in Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1193230
American Medical Association (AMA)
Liao, Yiwei& Zhao, Guosheng& Wang, Jian& Li, Shu. Network Security Situation Assessment Model Based on Extended Hidden Markov. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1193230
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1193230