Structure of covert channel based on RTT code
Shao Jingji · Journal of PLA University of Science and Technology · 2015
To improve the security of the covert data,a new way of constructing covert channel was proposed,and the real-time network characteristics of round-trip time(RTT)embedded into the time intervals.By this method,the covert channel is unrecoverable.In the experiment,current covert channels and new covert channel were built.The transmission rate and correct rate were compared in different network conditions.The experimental results show that the new covert channel ensures high correct rate of decoding,and at the same time,the transmission rate can change with the different network conditions.In addition,the real-time network characteristics of RTT are embedded into the time intervals,which enhances the data security and unrecoverable.