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Dynamic Construction Scheme for Virtualization Security Service in Software-Defined Networks.

Zhaowen Lin1,2,3, Dan Tao4,5, Zhenji Wang6

  • 1Network and Information Center, Institute of Network Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China. linzw@bupt.edu.cn.

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Summary
This summary is machine-generated.

This study introduces a new security architecture for Software Defined Networks (SDN). It decouples security services from the controller, reducing its burden and enhancing overall network resilience against attacks.

Keywords:
RETEsecurity serviceservice compositionsoftware defined network

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Area of Science:

  • Computer Science
  • Network Security

Background:

  • Software Defined Networks (SDN) face significant security challenges impacting large-scale deployment.
  • Current SDN security solutions overload the central controller, creating a critical vulnerability.
  • Controller compromise can lead to complete network paralysis.

Purpose of the Study:

  • To propose a novel, decoupled security protection architecture for Software Defined Networks.
  • To alleviate the security burden on the SDN controller and enhance network resilience.
  • To develop a flexible and efficient method for constructing dynamic security services.

Main Methods:

  • Designed a security service orchestration center physically decoupled from the SDN controller.
  • Utilized virtualization technology to create a security meta-function library.
  • Developed a dynamic security service composition algorithm based on web service composition and the RETE algorithm for efficient rule combination.

Main Results:

  • The proposed architecture effectively decouples security functions from the SDN controller.
  • Dynamic composition of security services meets user-specific requirements efficiently.
  • Experimental results in an OpenStack environment validate the effectiveness of the solution.

Conclusions:

  • The novel security architecture significantly reduces the burden on the SDN controller.
  • This approach enhances the security and resilience of Software Defined Networks.
  • The solution offers effective security protection with improved controller performance.