Covert Flow Trees: A Visual Approach to Analyzing Covert Storage Channels
IEEE Transactions on Software Engineering
A pump for rapid, reliable, secure communication
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Shared resource matrix methodology: an approach to identifying storage and timing channels
ACM Transactions on Computer Systems (TOCS)
A note on the confinement problem
Communications of the ACM
Eliminating Steganography in Internet Traffic with Active Wardens
IH '02 Revised Papers from the 5th International Workshop on Information Hiding
Approaches to resolving covert storage channels in multilevel secure systems
Approaches to resolving covert storage channels in multilevel secure systems
IP covert timing channels: design and detection
Proceedings of the 11th ACM conference on Computer and communications security
Network intrusion detection: evasion, traffic normalization, and end-to-end protocol semantics
SSYM'01 Proceedings of the 10th conference on USENIX Security Symposium - Volume 10
A Protocol for Building Secure and Reliable Covert Channel
PST '08 Proceedings of the 2008 Sixth Annual Conference on Privacy, Security and Trust
Towards Adaptive Covert Communication System
PRDC '08 Proceedings of the 2008 14th IEEE Pacific Rim International Symposium on Dependable Computing
On Information Flow Forensics in Business Application Scenarios
COMPSAC '09 Proceedings of the 2009 33rd Annual IEEE International Computer Software and Applications Conference - Volume 02
Embedding covert channels into TCP/IP
IH'05 Proceedings of the 7th international conference on Information Hiding
A secure interoperable architecture for building-automation applications
Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies
Systematic engineering of control protocols for covert channels
CMS'12 Proceedings of the 13th IFIP TC 6/TC 11 international conference on Communications and Multimedia Security
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In a real-world network, different hosts involved in covert channel communication run different covert channel software as well as different versions of such software, i.e. these systems use different network protocols for a covert channel. A program that implements a network covert channel for mobile usage thus must be capable of utilizing multiple network protocols to deal with a number of different covert networks and hosts. We present calculation methods for utilizable header areas in network protocols, calculations for channel optimization, an algorithm to minimize a covert channel's overhead traffic, as well as implementationrelated solutions for such a mobile environment. By minimizing the channel's overhead depending on the set of supported protocols between mobile hosts, we also minimize the attention raised through the channel's traffic. We also show how existing covert network channel infrastructure can be modified without replacing all existing infrastructure elements by proposing the handling of backward-compatible software versions.