This work is supported in part by the National Natural Science Foundation of China (No.60703053, No.60773140), and Independent Scientific Research Programs of National Education Ministry (No.20111081023).
A covert timing channel utilizes temporal features to transfer secret messages. This paper proposes a framework of network covert timing channels based on information theory to measure their capacity and efficiency. D...
This work is supported in part by the National Natural Science Foundation of China (No.60703053, No.60773140), and National Foundation Theory Research of China (973 Program) (No.2007CB310806).
In this paper we introduced a method to exchange the private key by adopting steganography in RTCP packet for the covert communication based on VoIP. We presented a model of covert communication based on VoIP, and poi...
the Hi-Tech R&D Program (863) of China (2006AA01Z444);the National Natural Science Foundation of China (No.60773140)
In this letter,a novel algorithm is proposed for identification of one popular type of VoIP(Voice over IP) application,MSN VoIP,based on both behavior pattern and protocol characteristics.In addition,the experiment fo...