Research on Construction Methods of Network Covert Channels
Xiao Jun-mo · Jisuanji gongcheng · 2009
Network covert channels poses a serious threat to the security of computer network for they can be used to bypass the firewalls or other forms of security systems.This paper analyzes the principle of the network covert channels and presents several means to set up network covert channels,and proposes two new methods to construct covert channel:a method based on the data packets' length and another method based on the data packets' arrival sequence.A few key issues on building network covert channel are discussed.