Title :
A new covert channel in WIFI networks
Author :
Frikha, L. ; Trabelsi, Z.
Author_Institution :
Ecole Super. des Commun. de Tunis, Tunis
Abstract :
Covert channels are not a new topic. However they remain an interesting research area. The most proposed techniques are located in the upper layers of the OSI model. In this paper, we present a new covert channel in the data link layer dedicated to wireless local area networks. It uses either sequence control or initial vector fields or both of them depending on the configuration of the network. We present also some measurements to protect the proposed channel against steganalysis and sniffing.
Keywords :
access protocols; cryptography; steganography; telecommunication security; vectors; wireless LAN; wireless channels; MAC 802.11 header; OSI model; WiFi network; covert channel; data link layer; initial vector field; network sniffing protection; sequence control; steganalysis protection; wireless local area network; Bandwidth; Communication system security; Cryptography; Data encapsulation; IP networks; Local area networks; Protection; Protocols; TCPIP; Wireless LAN; Covert channel; IEEE 802.11 MAC frame; initial vector; sequence control field; wireless local area networks;
Conference_Titel :
Risks and Security of Internet and Systems, 2008. CRiSIS '08. Third International Conference on
Conference_Location :
Tozeur
Print_ISBN :
978-1-4244-3309-4
DOI :
10.1109/CRISIS.2008.4757487
