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Design of Multiple-flow Timing Channel in Software-defined

  

  1. 1.School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. School of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang 212003, China
  • Received:2016-09-09 Online:2017-04-20 Published:2017-05-08

Abstract: Software-defined networks (SDN), different from traditional network, is a new network architecture with the separation of application layer, control layer and data layer. In this paper, covert communication in SDN is studied, a multiple-flow timing channel scheme is proposed based on the interaction characteristic between OpenFlow controllers and switches, which utilizes the arriving time of reply packets in link layer discovery protocol to transmit secret messages. Simulation results show that the proposed scheme can achieve well covertness and robustness.

Key words: software-defined networks, covert communication, timing channels, link layer discovery protocol

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