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Replay attack and password attacks are serious issues in the Kerberos authentication protocol. Many ideas have been proposed to prevent these attacks but they increase complexity of the total Kerberos environment. In this paper we present…

Cryptography and Security · Computer Science 2013-04-15 Gagan Dua , Nitin Gautam , Dharmendar Sharma , Ankit Arora

We consider time synchronization attack against multi-system scheduling in a remote state estimation scenario where a number of sensors monitor different linear dynamical processes and schedule their transmissions through a shared collision…

Systems and Control · Computer Science 2019-05-06 Ziyang Guo , Yuqing Ni , Wing Shing Wong , Ling Shi

In this paper, we describe an attack against one of the Oblivious-Transfer-based blind signatures scheme, proposed in [1]. An attacker with a primitive capability of producing specific-range random numbers, while exhibiting a partial MITM…

Cryptography and Security · Computer Science 2009-11-10 Stylianos Basagiannis , Panagiotis Katsaros , Andrew Pombortsis

Recent studies have proposed the use of Text-To-Speech (TTS) systems to automatically synthesise speech test cases on a scale and uncover a large number of failures in ASR systems. However, the failures uncovered by synthetic test cases may…

The threat of signal spoofing attacks against GNSS has grown in recent years and has motivated the study of anti-spoofing techniques. However, defense methods have been designed only against specific attacks. This paper introduces a general…

Signal Processing · Electrical Eng. & Systems 2024-05-24 Laura Crosara , Francesco Ardizzon , Stefano Tomasin , Nicola Laurenti

This work investigates the security and reliability analysis for a novel satellite-terrestrial (SatTer) network. Specifically, a satellite attempts to transmit confidential information to a ground user (GU) via the support of multiple relay…

Information Theory · Computer Science 2023-06-21 Tan N. Nguyen , Dinh-Hieu Tran , Trinh Van Chien , Van-Duc Phan , Miroslav Voznak , Symeon Chatzinotas

Test-Time Training (TTT) is an emerging paradigm that enables models to adapt their parameters during inference, improving performance on tasks such as few-shot learning, retrieval-augmented generation, and complex reasoning. However, this…

Machine Learning · Computer Science 2026-05-25 Simone Antonelli , Sadegh Akhondzadeh , Aleksandar Bojchevski

Enabled by hybrid grant-based (GB) and grant-free (GF) transmission techniques, GF users of internet of things (IoT) devices and massive machine-type communications (mMTC) meet opportunities to share wireless resources with GB users. In…

Information Theory · Computer Science 2021-10-06 Hongwu Liu , Theodoros A. Tsiftsis , Bruno Clerckx , Kyeong Jin Kim , Kyung Sup Kwak , H. Vincent Poor

In this paper, if the time-modulated array (TMA)-enabled directional modulation (DM) communication system can be cracked is investigated and the answer is YES! We first demonstrate that the scrambling data received at the eavesdropper can…

Signal Processing · Electrical Eng. & Systems 2023-10-17 Zhihao Tao , Zhaoyi Xu , Athina Petropulu

Massive Machine-Type Communications (mMTC) features a massive number of low-cost user equipments (UEs) with sparse activity. Tailor-made for these features, grant-free random access (GF-RA) serves as an efficient access solution for mMTC.…

Information Theory · Computer Science 2023-05-18 Zhaoji Zhang , Yuhao Chi , Qinghua Guo , Ying Li , Guanghui Song , Chongwen Huang

Deep learning-based person re-identification (re-id) models are widely employed in surveillance systems and inevitably inherit the vulnerability of deep networks to adversarial attacks. Existing attacks merely consider cross-dataset and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Yuan Bian , Min Liu , Xueping Wang , Yunfeng Ma , Yaonan Wang

This paper studies integrated sensing and communication (ISAC) with dynamic time division duplex (DTDD) cell-free (CF) massive multiple-input multiple-output~(mMIMO) systems. DTDD enables the CF mMIMO system to concurrently serve both…

Signal Processing · Electrical Eng. & Systems 2025-08-15 Anubhab Chowdhury , Sai Subramanyam Thoota , Erik G. Larsson

This paper presents a radar target tracking framework for addressing main-beam range deception jamming attacks using random finite sets (RFSs). Our system handles false alarms and detections with false range information through multiple…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Helena Calatrava , Aanjhan Ranganathan , Tales Imbiriba , Gunar Schirner , Murat Akcakaya , Pau Closas

Due to the increasing dependency of critical infrastructure on synchronized clocks, network time synchronization protocols have become an attractive target for attackers. We identify data origin authentication as the key security objective…

Cryptography and Security · Computer Science 2017-05-31 Robert Annessi , Joachim Fabini , Tanja Zseby

Tabular data sharing under privacy constraints is increasingly important for research and collaboration. Synthetic data generators (SDGs) are a promising solution, but synthetic data remains vulnerable to attacks, such as membership…

Machine Learning · Computer Science 2026-05-15 Davide Scassola , Andrea Coser , Sebastiano Saccani

Time Reversal (TR) has been proposed as a competitive precoding strategy for low-complexity wireless devices relying on Ultra-WideBand (UWB) signal waveforms. However, when TR is applied for multiple access, the signals received by the…

Information Theory · Computer Science 2022-03-30 A. Mokh , J. de Rosny , G. C. Alexandropoulos , R. Khayatzadeh , M. Kamoun , A. Ourir , A. Tourin , M. Fink

This study investigates a robust reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) system for secure wireless communication, in which a multi-antenna transmitter (Alice) sends confidential messages to a…

Signal Processing · Electrical Eng. & Systems 2026-02-20 Rakesh Ranjan , Ahmad Sirojuddin , Manjesh K. Hanawal , Himanshu B. Mishra , Wan-Jen Huang ID

Public warning systems (PWS) in cellular networks enable authorities to broadcast emergency alerts to all mobile phones in a geographic region in the event of threats such as earthquakes or severe weather. If an attacker can imitate these…

Cryptography and Security · Computer Science 2026-04-28 Abdallah Abou Hasna , Nada Chendeb , Ammar El Falou

Current spoofing speech detection systems need more convincing evidence. In this paper, the flaws of rhythm information inherent in the TTS-generated speech are analyzed to increase the reliability of detection systems. TTS models take text…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-28 Jingze Lu , Yuxiang Zhang , Wenchao Wang , Zengqiang Shang , Pengyuan Zhang

Rate-Splitting Multiple Access (RSMA) is an emerging flexible, robust and powerful multiple access scheme for downlink multi-antenna wireless networks. RSMA relies on multi-antenna Rate-Splitting (RS) strategies at the transmitter and…

Information Theory · Computer Science 2020-07-21 Onur Dizdar , Yijie Mao , Wei Han , Bruno Clerckx
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