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This letter considers a network comprising a transmitter, which employs random linear network coding to encode a message, a legitimate receiver, which can recover the message if it gathers a sufficient number of linearly independent coded…

Cryptography and Security · Computer Science 2022-03-08 Amjad Saeed Khan , Andrea Tassi , Ioannis Chatzigeorgiou

In this paper, an anti-eavesdropping estimation problem is investigated. A linear encryption scheme is utilized, which first linearly transforms innovation via an encryption matrix and then encrypts some components of the transformed…

Systems and Control · Electrical Eng. & Systems 2024-06-18 Zhongyao Hu , Bo Chen , Pindi Weng , Jianzheng Wang , Li Yu

Wyner's elegant model of wiretap channel exploits noise in the communication channel to provide perfect secrecy against a computationally unlimited eavesdropper without requiring a shared key. We consider an adversarial model of wiretap…

Cryptography and Security · Computer Science 2015-04-22 Pengwei Wang , Reihaneh Safavi-Naini

Ambient backscatter communication (AmBC) enables a passive backscatter device to transmit information to a reader using ambient RF signals, and has emerged as a promising solution to green Internet-of-Things (IoT). Conventional AmBC…

Information Theory · Computer Science 2018-01-08 Gang Yang , Qianqian Zhang , Ying-Chang Liang

Internet-of-Things (IoT) is rapidly growing in wireless technology, aiming to connect vast numbers of devices to gather and distribute vital information. Despite individual devices having low energy consumption, the cumulative demand…

Information Theory · Computer Science 2023-12-08 Shayan Zargari , Azar Hakimi , Fatemeh Rezaei , Chintha Tellambura , Amine Maaref

Radio Frequency fingerprinting enables a passive receiver to recognize and authenticate a transmitter without the need for cryptographic tools. Authentication is achieved by isolating specific features of the transmitted signal that are…

Cryptography and Security · Computer Science 2025-04-03 Muhammad Irfan , Savio Sciancalepore , Gabriele Oligeri

We study the problem of remote state estimation in the presence of a passive eavesdropper, under the challenging network environment of no packet receipt acknowledgments. A remote legitimate user estimates the state of a linear plant from…

Systems and Control · Electrical Eng. & Systems 2023-04-06 Matthew Crimson , Justin M. Kennedy , Daniel E. Quevedo

The existence of an undetectable eavesdropping of dense coded information has been already demonstrated by Pavi\v{c}i\'c for the quantum direct communication based on the ping-pong paradigm. However, a) the explicit scheme of the circuit is…

Quantum Physics · Physics 2016-07-19 Piotr Zawadzki , Jarosław Adam Miszczak

Deep learning draws heavily on the latest progress in semantic communications. The present paper aims to examine the security aspect of this cutting-edge technique from a novel shuffling perspective. Our goal is to improve upon the…

Cryptography and Security · Computer Science 2025-07-11 Fupei Chen , Liyao Xiang , Haoxiang Sun , Hei Victor Cheng , Kaiming Shen

An information-theoretic confidential communication is achievable if the eavesdropper has a degraded channel compared to the legitimate receiver. In wireless channels, beamforming and artificial noise can enable such confidentiality.…

Information Theory · Computer Science 2023-12-25 Stefan Roth , Aydin Sezgin

By carrying out measurements on entangled states, two parties can generate a secret key which is secure not only against an eavesdropper bound by the laws of quantum mechanics, but also against a hypothetical "post-quantum" eavesdroppers…

Quantum Physics · Physics 2007-10-22 Antonio Acin , Serge Massar , Stefano Pironio

We consider the problem of secure communications over the two-way wiretap channel under a strong secrecy criterion. We improve existing results by developing an achievable region based on strategies that exploit both the interference at the…

Information Theory · Computer Science 2015-03-17 Alexandre J. Pierrot , Matthieu R. Bloch

Classical communication schemes that exploit wave modulation are the basis of the information era. The transfer of information based on the quantum properties of photons revolutionized these modern communication techniques. Here we…

Quantum Physics · Physics 2020-08-31 Robin Röpke , Nicole Kerker , Alexander Stibor

In this paper, we investigate secure and reliable transmission strategies for multi-cell multi-user massive multiple-input multiple-output (MIMO) systems in the presence of an active eavesdropper. We consider a time-division duplex system…

Information Theory · Computer Science 2015-05-07 Yongpeng Wu , Robert Schober , Derrick Wing Kwan Ng , Chengshan Xiao , Giuseppe Caire

To enhance the national security, there is a growing need for government agencies to legitimately monitor suspicious communication links for preventing intended crimes and terror attacks. In this paper, we propose a new wireless information…

Information Theory · Computer Science 2017-02-07 Jie Xu , Lingjie Duan , Rui Zhang

Ambient Backscatter Communication (AmBC) is an emerging communication technology that can enable green Internet-of-Things deployments. The widespread acceptance of this paradigm is limited by low Signal-to-Interference-Plus-Noise Ratio…

Signal Processing · Electrical Eng. & Systems 2020-08-25 Xiyu Wang , Hüseyin Yiğitler , Ruifeng Duan , Estifanos Yohannes Menta , Riku Jäntti

In this paper, we consider communication on a two-hop channel, in which a source wants to send information reliably and securely to the destination via a relay. We consider both the untrusted relay case and the external eavesdropper case.…

Information Theory · Computer Science 2015-09-15 Zhijie Ren , Jasper Goseling , Jos H. Weber , Michael Gastpar

In bi-static Ambient Backscatter Communications (AmBC) systems, the direct path from the ambient source to the receiver can be several orders of magnitude stronger than the scattered path modulated by the AmBC device. Because of the large…

Information Theory · Computer Science 2019-01-23 Ruifeng Duan , Estifanos Menta , Hüseyin Yiğitler , Riku Jäntti , Zhu Han

Ambient backscatter communication (AmBC) is becoming increasingly popular for enabling green communication amidst the continual development of the Internet-of-things paradigm. Efforts have been put into backscatter signal detection as the…

Signal Processing · Electrical Eng. & Systems 2020-08-25 Xiyu Wang , Hüseyin Yiğitler , Riku Jäntti

The lightweight protocols and low-power radio technologies open up many opportunities to facilitate Internet-of-Things (IoT) into our daily life, while their minimalist design also makes IoT devices vulnerable to many active attacks due to…

Cryptography and Security · Computer Science 2018-10-17 Zhiqing Luo , Wei Wang , Jun Qu , Tao Jiang , Qian Zhang