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Desktops and laptops can be maliciously exploited to violate privacy. In this paper, we consider the daily battle between the passive attacker who is targeting a specific user against a user that may be adversarial opponent. In this…

Cryptography and Security · Computer Science 2020-07-21 Amit Dvir , Yehonatan Zion , Jonathan Muehlstein , Ofir Pele , Chen Hajaj , Ran Dubin

This paper considers a cyber-physical system under an active eavesdropping attack. A remote legitimate user estimates the state of a linear plant from the state information received from a sensor. Transmissions from the sensor occur via an…

Systems and Control · Electrical Eng. & Systems 2023-08-21 Matthew Crimson , Justin M. Kennedy , Daniel E. Quevedo

Wi-Fi signals may help realize low-cost and non-invasive human sensing, yet it can also be exploited by eavesdroppers to capture private information. Very few studies rise to handle this privacy concern so far; they either jam all sensing…

Cryptography and Security · Computer Science 2023-09-04 Jun Luo , Hangcheng Cao , Hongbo Jiang , Yanbing Yang , Zhe Chen

Deep learning-based semantic communication (SemCom) has emerged as a promising paradigm for next-generation wireless networks, offering superior transmission efficiency by extracting and conveying task-relevant semantic latent…

Cryptography and Security · Computer Science 2025-12-04 Zhiyuan Xi , Kun Zhu

We present a new machine learning-based attack that exploits network patterns to detect the presence of smart IoT devices and running services in the WiFi radio spectrum. We perform an extensive measurement campaign of data collection, and…

Cryptography and Security · Computer Science 2021-07-27 Ahmed Mohamed Hussain , Gabriele Oligeri , Thiemo Voigt

The monitoring of individuals/objects has become increasingly possible in recent years due to the convenience of integrated cameras in many devices. Due to the important moments or activities of people captured by these devices, it has made…

Cryptography and Security · Computer Science 2022-10-27 Ifeoluwapo Aribilola , Mamoona Naveed Asghar , Brian Lee

Copresence verification based on context can improve usability and strengthen security of many authentication and access control systems. By sensing and comparing their surroundings, two or more devices can tell whether they are copresent…

Cryptography and Security · Computer Science 2019-02-19 Hien Thi Thu Truong , Juhani Toivonen , Thien Duc Nguyen , Claudio Soriente , Sasu Tarkoma , N. Asokan

Wireless networks are a common place nowadays and almost all of the modern devices support wireless communication in some form. These networks differ from more traditional computing systems due to the ad-hoc and spontaneous nature of…

Networking and Internet Architecture · Computer Science 2010-07-15 Yasir Arfat Malkani , Lachhman Das Dhomeja

This paper investigates the privacy leakage of smart speakers under an encrypted traffic analysis attack, referred to as voice command fingerprinting. In this attack, an adversary can eavesdrop both outgoing and incoming encrypted voice…

Cryptography and Security · Computer Science 2020-05-21 Chenggang Wang , Sean Kennedy , Haipeng Li , King Hudson , Gowtham Atluri , Xuetao Wei , Wenhai Sun , Boyang Wang

Establishing a secure connection between wireless devices has become significantly important with the increasing number of Wi-Fi products coming to the market. In order to provide an easy and secure pairing standard, the Wi-Fi Alliance has…

Cryptography and Security · Computer Science 2023-11-28 Aleksandar Manev

Fake audio detection is expected to become an important research area in the field of smart speakers such as Google Home, Amazon Echo and chatbots developed for these platforms. This paper presents replay attack vulnerability of…

Cryptography and Security · Computer Science 2019-04-16 Khalid Mahmood Malik , Hafiz Malik , Roland Baumann

The radical advances in telecommunications and computer science have enabled a myriad of applications and novel seamless interaction with computing interfaces. Voice Assistants (VAs) have become a norm for smartphones, and millions of VAs…

Cryptography and Security · Computer Science 2023-02-22 Domna Bilika , Nikoletta Michopoulou , Efthimios Alepis , Constantinos Patsakis

An actuator is a device that converts electricity into another form of energy, typically physical movement. They are absolutely essential for any system that needs to impact or modify the physical world, and are used in millions of systems…

Cryptography and Security · Computer Science 2022-03-15 Youqian Zhang , Kasper Rasmussen

The evolution of Large Language Models (LLMs) into Agentic AI has established the Model Context Protocol (MCP) as the standard for connecting reasoning engines with external tools. Although this decoupled architecture fosters modularity, it…

Cryptography and Security · Computer Science 2026-02-17 Yunhao Yao , Zhiqiang Wang , Haoran Cheng , Yihang Cheng , Haohua Du , Xiang-Yang Li

With the growing use of information technology in all life domains, hacking has become more negatively effective than ever before. Also with developing technologies, attacks numbers are growing exponentially every few months and become more…

Cryptography and Security · Computer Science 2022-09-29 Khloud Al Jallad , Mohamad Aljnidi , Mohammad Said Desouki

Massive Multiple-Input Multiple-Output (MIMO) has become a crucial enabling technology for 5G and beyond, providing previously unheard-of increases in energy and spectrum efficiency. It is still difficult to guarantee secure communication…

Signal Processing · Electrical Eng. & Systems 2026-01-22 Nipun Agarwal

In many VoIP systems, Voice Activity Detection (VAD) is often used on VoIP traffic to suppress packets of silence in order to reduce the bandwidth consumption of phone calls. Unfortunately, although VoIP traffic is fully encrypted and…

Cryptography and Security · Computer Science 2023-06-02 Roy Laurens , Edo Christianto , Bruce Caulkins , Cliff C. Zou

A modern vehicle contains many electronic control units (ECUs), which communicate with each other through the in-vehicle network to ensure vehicle safety and performance. Emerging Connected and Automated Vehicles (CAVs) will have more ECUs…

Computers and Society · Computer Science 2019-09-26 Zadid Khan , Mashrur Chowdhury , Mhafuzul Islam , Chin-Ya Huang , Mizanur Rahman

The employees of any organization, institute, or industry, spend a significant amount of time on a computer network, where they develop their own routine of activities in the form of network transactions over a time period. Insider threat…

Cryptography and Security · Computer Science 2020-08-14 Sudipta Paul , Subhankar Mishra

With the progressive increase of network application and electronic devices (computers, mobile phones, android, etc.) attack and intrusion, detection has become a very challenging task in cybercrime detection area. in this context, most of…

Cryptography and Security · Computer Science 2018-01-11 Takwa Omrani , Adel Dallali , Bilgacem Chibani Rhaimi , Jaouhar Fattahi