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Automated Intrusion Response Network risk assessment system

Author: XuLi
Tutor: QinZhiGuang
School: University of Electronic Science and Technology
Course: Information Security
Keywords: Dynamic risk assessment Alarm polymerization Cost Intrusion Response
CLC: TP393.08
Type: Master's thesis
Year: 2011
Downloads: 21
Quote: 0
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Abstract


With the development of Internet technology , network security has become increasingly important and urgent security issues . One of the means to solve network security problems is to conduct a risk assessment of the operational status of the network system . The purpose of the risk assessment is to evaluate and analyze threats in the network system , found that the potential risk of the system and estimated that they will result in adverse effects , and thus provide the basis for network security solutions to reduce the risk of the system may suffer . , Automatic intrusion response techniques based on some of the characteristics of the intrusion and network to take appropriate response measures , with active blocking pre intercept intrusion activities and aggressive network traffic , be able to ensure that the objectives of confidentiality , integrity and availability. The main content of this study are as follows: a combination of qualitative analysis and quantitative analysis , threat to network events as the basis of the analysis of dynamic risk assessment , we propose and design a data model using OLAP hypercube threat event stream characteristics of data modeling and analysis of network dynamic risk assessment subsystem , and its efficiency and performance test verification . Analysis to study the characteristics of the existing intrusion response system and intrusion response techniques in response to the decision-making technology for the shortcomings of the existing intrusion response system is designed and implemented a web-based risk assessment , alarm aggregation and cost Automated Intrusion Response systems. The system network risk value of the risk assessment as a basis for making decisions in response to , and to determine whether to repeat the alarm information alarm polymerization . 3, on the intrusion response system based on the network risk assessment , alarm polymerization and the cost of automatic test verification , testing showed that the change of the present system for the network has a good sensitivity, and has a high recognition processing capability on the alarm information is repeated .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer Network Security
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