TY - GEN
T1 - Implementation of a covert channel in the 802.11 header
AU - Frikha, Lilia
AU - Trabelsi, Zouheir
AU - El-Hajj, Wassim
PY - 2008
Y1 - 2008
N2 - Covert channels are an immense cause of security concern because they can be used to pass malicious messages. The messages could be in form of computer virus, spy programs, terrorist messages, etc. Most available techniques proposed covert channels that use the upper layers of the OSI model. In this paper, we discuss a novel covert channel in the data link layer dedicated to wireless local area networks. Depending on the configuration of the network, the covert channel uses either sequence control or initial vector fields, or both of them. We present also some measurements to protect the proposed covert channel against steganalysis processes and sniffing attack. Finally, the performance of proposed covert channel is compared with the available common TCP/IP covert channels regarding the offered bandwidth and the imperceptibility.
AB - Covert channels are an immense cause of security concern because they can be used to pass malicious messages. The messages could be in form of computer virus, spy programs, terrorist messages, etc. Most available techniques proposed covert channels that use the upper layers of the OSI model. In this paper, we discuss a novel covert channel in the data link layer dedicated to wireless local area networks. Depending on the configuration of the network, the covert channel uses either sequence control or initial vector fields, or both of them. We present also some measurements to protect the proposed covert channel against steganalysis processes and sniffing attack. Finally, the performance of proposed covert channel is compared with the available common TCP/IP covert channels regarding the offered bandwidth and the imperceptibility.
KW - Covert channel
KW - IEEE 802.11 MAC frame
KW - Initial vector
KW - Sequence control field
KW - Wireless local area networks
UR - http://www.scopus.com/inward/record.url?scp=52949124870&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=52949124870&partnerID=8YFLogxK
U2 - 10.1109/IWCMC.2008.103
DO - 10.1109/IWCMC.2008.103
M3 - Conference contribution
AN - SCOPUS:52949124870
SN - 9781424422029
T3 - IWCMC 2008 - International Wireless Communications and Mobile Computing Conference
SP - 594
EP - 599
BT - IWCMC 2008 - International Wireless Communications and Mobile Computing Conference
T2 - International Wireless Communications and Mobile Computing Conference, IWCMC 2008
Y2 - 6 August 2008 through 8 August 2008
ER -