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Security-centric node identification in complex networks.

Lanying Liu1, Ning Du2,3, Duyong Sheng4

  • 1Liaocheng University Dongchang College, Liaocheng, 252000, Shandong, China. llywshwhy@163.com.

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|May 4, 2025
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Summary
This summary is machine-generated.

This study introduces a new Security-Centric Node Identification method to improve network security. It effectively detects critical nodes by combining network structure and real-time security risks in dynamic environments.

Keywords:
Critical nodesDynamic factorsNetwork centralityNode importanceSecurity centrality

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Area of Science:

  • Computer Science
  • Network Security
  • Cybersecurity

Background:

  • Complex networks face challenges in identifying security-critical nodes.
  • Traditional methods analyzing centrality or security metrics in isolation are insufficient.
  • Internet of Things (IoT) and Fog Computing increase network complexity and security risks.

Purpose of the Study:

  • To propose a novel Security-Centric Node Identification method.
  • To enhance the detection of security-critical nodes in dynamic and complex networks.
  • To integrate structural importance with real-time security vulnerabilities.

Main Methods:

  • Developed a Security Centrality (SC) metric integrating multiple centrality measures (degree, betweenness, closeness, eigenvector) with security risks and dynamic factors.
  • Created efficient algorithms for identifying critical nodes.
  • Implemented an incremental update mechanism for real-time adaptability.

Main Results:

  • The proposed method effectively identifies security-critical nodes with high accuracy.
  • A low false-positive rate was maintained across various network topologies.
  • Incorporating dynamic factors significantly improved the robustness of node identification.

Conclusions:

  • The Security-Centric Node Identification method offers a more effective approach to network security.
  • The method is highly adaptable to real-world, dynamic network security scenarios.
  • This approach enhances the detection of vulnerabilities in complex, decentralized systems.