Research on the frequency hopping convert channel based on HTTP
Xie Hui · Application of Electronic Technique · 2010
In view of the present HTTP hiding channel with the weakness of small band width and easy to be detected,this paper presents the technology of a new frequency hopping convert channel based on HTTP(FHCC_HTTP).The first section introduces a variety methods of covert channel based on HTTP protocol,on the basis of which the design and implementation of frequency hopping covert channel based on the HTTP is presented.Finally the file privacy analysis and the file transfer time simulation test is carried on.The results show that using the FHCC_HTTP technology,the network current capacity draws close to the normal user browsing homepage network current capacity,and the network can effectively avoids IDS examination.The privacy is good.Simultaneously,because FHCC_HTTP shifts many kinds of hiding channel construction method,compares to RwwwShell,the file transfer time and the hiding channel band width have been significantly improved.