Journal of Xidian University

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Low-rate-denial-of-service attack detection by symbolic dynamics method

YANG Baowang   

  1. (College of Science & Technology, Ningbo Univ., Ningbo 315212, China)
  • Received:2017-05-15 Online:2018-02-20 Published:2018-03-23

Abstract:

In terms of the network security problem caused by Low-rate-Denial-of-Service attack, this paper proposes a symbolic dynamics method to detect such attacks. The number of packets sampled signals is transferred into the symbol sequence and the calculate the entropy corresponding to the symbol sequence. There is a significant increase in packets number signal information complexity caused by Low-rate-Denial-of-Service attack arrival, which can be compared with a default entropy threshold for recognition. We verify the algorithm in the simulation environment and the actual test servers respectively and the experimental results show that the proposed algorithm has an average accuracy of 92% to achieve the Low-rate-Denial-of-Service attack recognition.

Key words: low-rate-denial-of-service attack, symbolic dynamics, entropy, information complexity, threshold, network security