A generalized approach to estimation of memoryless covert channel information leakage capacity

Yilmaz, Baki Berkay; Sehatbakhsh, Nader; Dey, Moumita; Cheng, Chia-Lin; Prvulovic, Milos; Zajić, Alenka

doi:10.1016/j.array.2022.100131

Cited by 1 publication

(2 citation statements)

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“…Accordingly, the adversary neutralizes the CSC through data rewriting and format normalization. The packet rate is high for real‐time communication applications, and the covert channel based on stored content also performs well 35,36 . The CSC works well in video and multimedia applications when combined with stealthy and other data embedding technologies 37,38 .…”

Section: Related Workmentioning

confidence: 99%

“…The packet rate is high for real-time communication applications, and the covert channel based on stored content also performs well. 35,36 The CSC works well in video and multimedia applications when combined with stealthy and other data embedding technologies. 37,38 The CTC, unlike the CSC, is based on fine-tuning traffic transmission patterns without modifying the precise content.…”

Section: Related Workmentioning

confidence: 99%

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Towards robust and stealthy communication for wireless intelligent terminals

Chen

Qiu

Zhang

et al. 2022

Int J of Intelligent Sys

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Fifth‐generation (5G) wireless systems provide an opportunity for improving the existing Voice over Internet Protocol communication service's user experience. To mitigate the security risk of 5G data leakage, building covert channel is an alternative approach of providing confidential data transmission. Due to the high transmission rate of 5G, the interpacket intervals become small and derandomized, this caused the encoding phase of the covert timing channel imports relatively large modulation errors. rearranging is a widespread phenomenon that is occurred over the data communications. In this paper, we propose a rearrangement covert channel approach named Hybrid Variable‐length Packet Rearrangement Covert Timing Channel (HVPR‐CTC), which artificially chooses the delimiter packets and identification (ID) packets from the overt traffics, and encodes the packet sending order between adjacent delimiter packets according to a generated hybrid variable‐length codeword dictionary, and embeds the secret message by rearranging the sending order of the ID packets. The experiments demonstrate that the HVPR‐CTC scheme can effectively perform strategy adjustment: its minimum Location Square Deviation is 0.832 and minimum Swap Deviation is 139. the maximum throughput reaches 14.37 bps, and the optimal Bit Error Rate is 3.27% and 9.70% for low‐channel noise and high‐channel noise communication conditions, respectively.

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Section: Related Workmentioning

confidence: 99%