Large-scale network security situation evaluation method based on index system

A network security and index system technology, which is applied in the field of large-scale network security situation assessment based on index system, can solve the problems of slow calculation speed and is not suitable for large-scale network system security threat assessment, so as to improve the evaluation efficiency and avoid subjective evaluation. , the effect of improving the objectivity of evaluation

Inactive Publication Date: 2012-05-16
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0005] This method is mainly aimed at the threats caused by network attacks in the LAN environment, and is not suitable for the security threat assessment of large-scale network systems; hosts and services in large-scale network environments present a large-scale distribution characteristic. If aggregated according to the above model, There are disadvantages such as slow calculation speed

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  • Large-scale network security situation evaluation method based on index system
  • Large-scale network security situation evaluation method based on index system
  • Large-scale network security situation evaluation method based on index system

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Embodiment Construction

[0054] definition:

[0055] Definition 1. Network situation: Network situation refers to the current state and change trend of the entire network composed of various network equipment operating conditions, network behaviors, and user behaviors. It is worth noting that situation emphasizes the environment, dynamics, and the relationship between entities. It is a state, a trend, an overall and macro concept, and any single situation or state cannot be called a situation.

[0056] Definition 2, Situation factor: Situation factor refers to an important factor that can cause changes in the network situation, denoted as f k . SF={f 1 , f 2 ,..., f d} is the situation factor set, which is a subset of the monitoring index set.

[0057] Definition 3, Network Situational Awareness: Network situational awareness refers to the acquisition, understanding, evaluation, display and prediction of future development trends of situational factors in a large-scale network environment.

[00...

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Abstract

The invention provides a large-scale network security situation evaluation method based on an index system. The method comprises the following steps: step one, determining dimensions that are needed to be analyzed for a network security situation; step two, determining network security factors according all the dimensions; step three, determining concrete indexes according to all the network security factors, wherein the dimensions, the security factors, and the concrete indexes are all-level nodes of a hierarchical evaluation model; and the step four, carrying out security situation evaluation on the hierarchical evaluation model to obtain a network security value. According to the method provided in the invention, efficiency of large-scale network security situation evaluation can be improved.

Description

technical field [0001] The invention relates to the field of computer network security, in particular to a large-scale network security situation assessment method based on an index system. Background technique [0002] With the development of human society, the network has been integrated into all aspects of people's lives. While the network brings great convenience to people, it is also accompanied by security issues that cannot be ignored. The security of information systems is seriously threatened. At the same time, after my country's network informatization level has developed to a certain stage, various network security incidents have increased, such as network economic crimes, large-scale network attacks, network stealing, etc., which have become restrictions on the development of my country's national economy, and even endanger social stability and national security. safety factor. [0003] In view of the increasingly severe network security situation, how to compre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L29/06H04L12/24
Inventor 张建锋韩伟红贾焰杨树强周斌郑黎明徐镜湖刘东刘斐李远征王雯霞夏榕泽
Owner NAT UNIV OF DEFENSE TECH
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