New robust network covert channel
一种新型可靠网络隐蔽信道的研究

To solve the problem that the transmission rate of the traditional IP covert timing channel was low, lacked a stable time synchronization mechanism in the WAN, and was difficulte to achieve transmit hidden message reliably and stably between sender and receiver, this paper proposed a robust network covert channelRNCC. This channel used the number of IP packets sending in a fixed time window to transmit hidden message. To improve the bandwidth of RNCC, analyzed a new information encoding mechanism. Furthermore, proposed a new synchronization method, which was to solve the problem of time synchronization of the traditional IP covert timing channel, and to ensure the reliability of RNCC. The experimental results show that the capacity and robustness of RNCC is better than the traditional IP covert timing channel.