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相关论文: TEMPEST-LoRa: Cross-Technology Covert Communicatio…

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Side-channel vulnerabilities pose an increasing threat to cryptographically protected devices. Consequently, it is crucial to observe information leakages through physical parameters such as power consumption and electromagnetic (EM)…

密码学与安全 · 计算机科学 2025-03-18 Nilupulee A Gunathilake , Owen Lo , William J Buchanan , Ahmed Al-Dubai

Side channels have become an essential component of many modern information-theoretic schemes. The emerging field of cross technology communications (CTC) provides practical methods for creating intentional side channels between existing…

信息论 · 计算机科学 2024-12-09 Daniel Harman , Ashton Palacios , Philip Lundrigan , Willie K. Harrison

A covert communication system is developed that modulates Morse code characteristics and that delivers its mes- sage economically and to geographically remote areas using radio and EchoLink. Our system allows a covert message to be sent to…

密码学与安全 · 计算机科学 2014-08-26 Joshua Davis

Near-field beamfocusing with extremely large aperture arrays can effectively enhance physical layer security. Nevertheless, even small estimation errors of the eavesdropper's location may cause a pronounced focal shift, resulting in a…

信息论 · 计算机科学 2026-05-04 Shicong Liu , Xianghao Yu , Robert Schober

Semantic communication (SemCom), as a typical paradigm of deep integration between artificial intelligence (AI) and communication technology, significantly improves communication efficiency and resource utilization efficiency. However, the…

信号处理 · 电气工程与系统科学 2025-09-08 Zhidi Zhang , Rui Meng , Song Gao , Haixiao Gao , Xiaodong Xu

Ensuring end-to-end cross-layer communication security in military networks by selecting covert schemes between nodes is a key solution for military communication security. With the development of communication technology, covert…

密码学与安全 · 计算机科学 2025-01-22 Tianhao Liu , Jiqiang Liu , Tao Zhang , Jian Wang , Jiacheng Wang , Jiawen Kang , Dusit Niyato , Shiwen Mao

Due to the vital role of security in online communications and this fact that attackers are developing their tools, modernizing the security tools is an essential. The efficiency of crypto systems has been proven after years, however one…

密码学与安全 · 计算机科学 2020-04-01 Mahboubeh Nazari , Sousan Tarahomi , Sobhan Aliabady

In this work, we address the problem of eavesdropping on digital video displays by analyzing the electromagnetic waves that unintentionally emanate from the cables and connectors, particularly HDMI. This problem is known as TEMPEST.…

密码学与安全 · 计算机科学 2024-07-16 Santiago Fernández , Emilio Martínez , Gabriel Varela , Pablo Musé , Federico Larroca

This article presents a proof-of-concept illustrating the feasibility of creating a covert channel between a C\&C server and a malware installed in an organization by exploiting an organization's scanner and using it as a means of…

密码学与安全 · 计算机科学 2017-03-23 Ben Nassi , Adi Shamir , Yuval Elovici

This paper investigates a new model to improve the scalability of low-power long-range (LoRa) networks by allowing multiple end devices (EDs) to simultaneously communicate with multiple multi-antenna gateways on the same frequency band and…

信号处理 · 电气工程与系统科学 2021-11-22 The Khai Nguyen , Ha H. Nguyen , Ebrahim Bedeer

This paper is a first study on the topic of achieving physical layer security by exploiting non-systematic channel codes. The chance of implementing transmission security at the physical layer is known since many years in information…

信息论 · 计算机科学 2010-04-27 Marco Baldi , Marco Bianchi , Franco Chiaraluce

Channel Knowledge Map (CKM) is an emerging data-driven toolbox that captures our awareness of the wireless channel and enables efficient communication and resource allocation beyond the state of the art. In this work, we consider CKM for…

信号处理 · 电气工程与系统科学 2025-08-20 Ladan Khaloopour , Matthias Hollick , Vahid Jamali

We study covert communications over binary-input discrete memoryless alarm two-way channels, in which two users interact through a two-way channel and attempt to hide the presence of their communication from an eavesdropping receiver. The…

信息论 · 计算机科学 2025-06-23 Tuna Erdoğan , Tyler Kann , Aria Nosratinia , Matthieu Bloch

We explore covert communication of qubits over the lossy thermal-noise bosonic channel, which is a quantum-mechanical model of many practical channels, including optical. Covert communication ensures that an adversary is unable to detect…

We study a covert queueing channel (CQC) between two users sharing a round robin scheduler. Such a covert channel can arise when users share a resource such as a computer processor or a router arbitrated by a round robin policy. We present…

信息论 · 计算机科学 2018-07-16 AmirEmad Ghassami , Ali Yekkehkhany , Negar Kiyavash

This paper investigates the physical-layer security for an indoor visible light communication (VLC) network consisting of a transmitter, a legitimate receiver and an eavesdropper. Both the main channel and the wiretapping channel have…

信息论 · 计算机科学 2018-07-27 Jin-Yuan Wang , Cheng Liu , Jun-Bo Wang , Yongpeng Wu , Min Lin , Julian Cheng

In this paper we present a method which allows attackers to covertly leak data from isolated, air-gapped computers. Our method utilizes the hard disk drive (HDD) activity LED which exists in most of today's desktop PCs, laptops and servers.…

密码学与安全 · 计算机科学 2017-02-23 Mordechai Guri , Boris Zadov , Eran Atias , Yuval Elovici

We note that constituent fields (notably the fraction-of-seconds timestamp field) in the data payload structure of the synchrophasor communication protocol (IEEE C37.118 standard) are overprovisioned relative to real-world usage and needs,…

密码学与安全 · 计算机科学 2025-08-28 Prashanth Krishnamurthy , Ramesh Karri , Farshad Khorrami

Side channels remain a challenge to information flow control and security in modern computing platforms. Resource partitioning techniques that minimise the number of shared resources among processes are often used to address this challenge.…

密码学与安全 · 计算机科学 2015-03-25 Ramya Jayaram Masti , Devendra Rai , Aanjhan Ranganathan , Christian Müller , Lothar Thiele , Srdjan Capkun

This paper investigates the physical layer security (PLS) of a broadband in-home power line communication (PLC) system when a malicious wireless device tries to eavesdrop private messages exchanged between two PLC devices. Such a security…

信号处理 · 电气工程与系统科学 2020-12-30 Ândrei Camponogara , H. Vincent Poor , Moisés V. Ribeiro