A Novel Covert Channel Based on Length of Messages

Covert channels are widely used for secret information transmission on networks. Although packet length based covert channels have greatly enhanced tamper resistance, they are still vulnerable to detections due to abnormal network traffic. Thus, in this paper, we are motivated to design a novel prot...

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Bibliographic Details
Main Authors: Liping Ji, Wenhao Jiang, Benyang Dai, Xiamu Niu
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Bandwidth
Computational modeling
computer networks
covert channels
Cryptography
Electronic commerce
Information security
message length
Protocols
Resists
Telecommunication traffic
Traffic control
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Summary:Covert channels are widely used for secret information transmission on networks. Although packet length based covert channels have greatly enhanced tamper resistance, they are still vulnerable to detections due to abnormal network traffic. Thus, in this paper, we are motivated to design a novel protocol-independent covert channel that could deliver normal network traffic. We simulated our covert channel on HTTP protocol and analyzed its security and bandwidth.
DOI:10.1109/IEEC.2009.122