Results 11 to 20 of about 3,049 (257)
IET Communications, 2021 This paper studies multi‐antenna covert communication exploiting a public communication link over the wireless fading channel. In particular, a relatively practical covert communication scenario is considered for the first time, where a warden with ...
Yuda Lin +3 more
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FF-MR: A DoH-Encrypted DNS Covert Channel Detection Method Based on Feature Fusion
Applied Sciences, 2022 In this paper, in order to accurately detect Domain Name System (DNS) covert channels based on DNS over HTTPS (DoH) encryption and to solve the problems of weak single-feature differentiation and poor performance in the existing detection methods, we ...
Yongjie Wang +4 more
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An Xgboost-based Method for Detecting Covert Timing Channel of Skype [PDF]
Jisuanji gongcheng, 2021 The covert timing channel exploits the packet delay to transmit secret information.Due to the complexity of the temporal features of network,the false alarm rate of the covert channels is high,masking the detection of the true targets.An Xgboost-based ...
CHANG Tingting, ZHAI Jiangtao, DAI Yuewei
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Covert channel detection using Information Theory [PDF]
Electronic Proceedings in Theoretical Computer Science, 2011 This paper presents an information theory based detection framework for covert channels. We first show that the usual notion of interference does not characterize the notion of deliberate information flow of covert channels.
Loïc Hélouët, Aline Roumy
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TCP covert timing channels: Design and detection [PDF]
2008 IEEE International Conference on Dependable Systems and Networks With FTCS and DCC (DSN), 2008 Exploiting packetspsila timing information for covert communication in the Internet has been explored by several network timing channels and watermarking schemes. Several of them embed covert information in the inter-packet delay. These channels, however, can be detected based on the perturbed traffic pattern, and their decoding accuracy could be ...
Xiapu Luo +2 more
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Identification of DNS covert channel based on improved convolutional neural network
Tongxin xuebao, 2020 In order to effectively identify the multiple types of DNS covert channels,the implementation of different sorts of DNS covert channel software was studied,and a detection based on the improved convolutional neural network was proposed.The experimental ...
Meng ZHANG, Haoliang SUN, Peng YANG
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Detection of Covert Channels Over ICMP Protocol [PDF]
2017 IEEE/ACS 14th International Conference on Computer Systems and Applications (AICCSA), 2017 With the growing complexity of networks and communications protocols that become increasingly enormous and extensive, we are confronted with the problem of covert channel that affects the confidentiality and integrity of data sent in the network. Covert channels also known as hidden channels can elude basic security systems such as Intrusion Detection ...
Sirine Sayadi +2 more
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Covert timing channel detection method based on grayscale image transformation
四川大学学报. 自然科学版, 2023 Network covert timing channel is a highly concealed method of information leakage. As the main communication method of APT attack, it poses a great threat to network security.
CHEN Hong-Lü +3 more
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Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems
IEEE Access, 2019 Proactive eavesdropping is an effective method for government to monitor suspicious users who are deemed to misuse communication systems for illegal activities. In this paper, considering that a legitimate full-duplex (FD) eavesdropper tries to monitor a
Xingbo Lu +3 more
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Performance Comparison of Relay-Based Covert Communications: DF, CF and AF
Sensors, 2023 In this paper, we investigate the performance of covert communications in different types of a relay system: decode-and-forward (DF), compress-and-forward (CF) and amplify-and-forward (AF).
Jihwan Moon
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