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The exponential increase in the number of devices connected to the internet globally has led to the requirement for the introduction of better and improved security measures for maintaining data integrity. The development of a wireless and…

Cryptography and Security · Computer Science 2024-09-02 Amith N Bharadwaj , G Adarsh , Gurusatwik Bhatta N , Karan K , Vijay B T

Today, many organizations are moving their computing services towards the Cloud. This makes their computer processing available much more conveniently to users. However, it also brings new security threats and challenges about safety and…

Networking and Internet Architecture · Computer Science 2012-03-16 Hassen Mohammed Alsafi , Wafaa Mustafa Abduallah , Al-Sakib Khan Pathan

Speech emotion sensing in communication networks has a wide range of applications in real life. In these applications, voice data are transmitted from the user to the central server for storage, processing, and decision making. However,…

Silent speech interface is a promising technology that enables private communications in natural language. However, previous approaches only support a small and inflexible vocabulary, which leads to limited expressiveness. We leverage…

Human-Computer Interaction · Computer Science 2023-03-07 Zixiong Su , Shitao Fang , Jun Rekimoto

Intrusion detection systems (IDS) help detect unauthorized activities or intrusions that may compromise the confidentiality, integrity or availability of a resource. This paper presents a general overview of IDSs, the way they are…

Cryptography and Security · Computer Science 2017-12-04 Liu Hua Yeo , Xiangdong Che , Shalini Lakkaraju

Secure communications are playing increasing roles in society, particularly in finance, journalism, and military projects. Current methods of securing e-mail and similar messaging methods rely on encryption of the message body, but the…

Cryptography and Security · Computer Science 2014-11-25 H. Bjorgvinsdottir , P. M. Bentley

In this letter, we study the secure communication problem in the unmanned aerial vehicle (UAV) enabled networks aided by an intelligent reflecting surface (IRS) from the physical-layer security perspective. Specifically, the IRS is deployed…

Information Theory · Computer Science 2020-11-10 Wen Wang , Hui Tian , Wanli Ni , Meihui Hua

Existing question-answering research focuses on unanswerable questions in the context of always providing an answer when a system can\dots but what about cases where a system {\bf should not} answer a question. This can either be to protect…

Computation and Language · Computer Science 2023-03-17 Nathaniel W. Rollings , Kent O'Sullivan , Sakshum Kulshrestha

The integration of radar sensors and communication networks as envisioned for the 6G wireless networks poses significant security risks, e.g., the user position information can be released to an unauthorized dual-functional base station…

Information Theory · Computer Science 2025-01-28 Fan Xu , Wenhai Lai , Kaiming Shen

Overnight, Apple has turned its hundreds-of-million-device ecosystem into the world's largest crowd-sourced location tracking network called offline finding (OF). OF leverages online finder devices to detect the presence of missing offline…

Cryptography and Security · Computer Science 2021-03-04 Alexander Heinrich , Milan Stute , Tim Kornhuber , Matthias Hollick

In order to limit the damage of malware on Mac OS X and iOS, Apple uses sandboxing, a kernel-level security layer that provides tight constraints for system calls. Particularly used for Apple iOS, sandboxing prevents apps from executing…

Cryptography and Security · Computer Science 2016-08-16 Răzvan Deaconescu , Luke Deshotels , Mihai Bucicoiu , William Enck , Lucas Davi , Ahmad-Reza Sadeghi

In this paper, we investigate joint information theoretic secrecy and covert communication in a single-input multi-output (SIMO) system where a transmitter (Alice) is communicating with two legitimate users (Bob and Carol). We consider that…

Signal Processing · Electrical Eng. & Systems 2020-07-13 Moslem Forouzesh , Paeiz Azmi , Ali Kuhestani , Phee Lep Yeoh

This letter investigates the secrecy performance of wireless communication systems assisted by a fluid reconfigurable intelligent surface (FRIS). Unlike conventional reconfigurable intelligent surfaces (RISs) with fixed geometries, FRISs…

Information Theory · Computer Science 2025-09-30 Masoud Kaveh , Farshad Rostami Ghadi , Francisco Hernando-Gallego , Diego Martín , Kai-Kit Wong , Riku Jäntti

Internet of Things (IoT) is one of the most fast-growing field in high technologies nowadays. Therefore, lots of electronic devices include wireless connections with several communication protocols (WiFi, ZigBee, Sigfox, LoRa and so on).…

Cryptography and Security · Computer Science 2016-10-18 Guillaume Fournier , Pierre Matoussowsky , Pascal Cotret

Since Internet of Things (IoT) is suggested as the fundamental platform to adapt massive connections and secure transmission, we study physical-layer authentication in the point-to-point wireless systems relying on reconfigurable…

Signal Processing · Electrical Eng. & Systems 2022-05-30 Dinh-Thuan Do , Anh-Tu Le , Shahid Mumtaz

The Internet of Things (IoT) has enabled a wide range of sectors to interact effectively with their consumers in order to deliver seamless services and products. Despite the widespread availability of (IoT) devices and their Internet…

Cryptography and Security · Computer Science 2022-04-11 Ghassan Samara , Ruzayn Quaddoura , Mooad Imad Al-Shalout , AL-Qawasmi Khaled , Ghadeer Al Besani

Infrared (IR) light is invisible to humans, but cameras are optically sensitive to this type of light. In this paper, we show how attackers can use surveillance cameras and infrared light to establish bi-directional covert communication…

Cryptography and Security · Computer Science 2017-09-19 Mordechai Guri , Dima Bykhovsky , Yuval Elovici

Intrusion Detection System or IDS is a software or hardware tool that repeatedly scans and monitors events that took place in a computer or a network. A set of rules are used by Signature based Network Intrusion Detection Systems or NIDS to…

Cryptography and Security · Computer Science 2014-11-26 Laxmi Lahoti , Chaitali Chandankhede , Debajyoti Mukhopadhyay

Privacy-preserving voice conversion aims to remove only the attributes of speech audio that convey identity information, keeping other speech characteristics intact. This paper presents a mechanism for privacy-preserving voice conversion…

Sound · Computer Science 2024-09-24 Jacob J Webber , Oliver Watts , Gustav Eje Henter , Jennifer Williams , Simon King

The secure transmission of speech information is a significant issue faced by many security professionals and individuals. By applying voice-encryption technique any kind of encrypted sensitive speech data such as password can be…

Multimedia · Computer Science 2013-04-26 Rupa Patel , Urmila Shrawankar