Node vulnerability estimation method and system based on heterogeneous information network

A heterogeneous information network, vulnerability technology, applied in transmission systems, electrical components, etc., can solve problems such as failure to consider the impact of node vulnerability, inability to analyze network attacks well, and difficulties in dynamic network analysis.
CN111447246AActive Publication Date: 2020-07-24NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2020-07-24

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Abstract

The invention discloses a node vulnerability estimation method based on a heterogeneous information network. The node vulnerability estimation method comprises the following steps: step 1, constructing the heterogeneous information network; 2, setting a virtual host with a known vulnerability value; 3, obtaining an adjacent matrix of the network host and the virtual host under each meta-path; 4, calculating a similarity value between each network host and the virtual host under each meta-path; step 5, performing weighted summation on similarity values between the corresponding network hosts and virtual hosts under each meta-path; step 6, extracting the mutual access relationship among the network hosts from the computer network, then constructing an access relationship matrix among the network hosts, and carrying out normalization processing; and step 7, performing node vulnerability iterative processing on each network host. The invention further discloses a storage medium, a system and calculation equipment. According to the invention, the accuracy of the node vulnerability estimation result is ensured.
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Description

technical field

[0001] The invention belongs to the technical field of computer network security, and in particular relates to a node vulnerability estimation method and system based on heterogeneous information networks. Background technique

[0002] With the popularity of computers and the rapid development of communication technology, computer networks have penetrated into people's daily life. All kinds of software and hardware products and network information systems are generally vulnerable in planning, design, development, maintenance, configuration, management and other links. Network vulnerability assessment provides quantitative assessment results for network security status through comprehensive analysis of computer network vulnerabilities, topology and other elements, providing a basis for network security optimization. The assessment of network vulnerability has become one of the research hotspots in the field of security, and many valuable research results have...

Claims

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