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Making contactless payments using a smartwatch is increasingly popular, but this payment medium lacks traditional biometric security measures such as facial or fingerprint recognition. In 2022, Sturgess et al. proposed WatchAuth, a system…

Cryptography and Security · Computer Science 2023-07-12 George Webber

Gesture recognition is mainly apprehensive on analyzing the functionality of human wits. The main goal of gesture recognition is to create a system which can recognize specific human gestures and use them to convey information or for device…

Artificial Intelligence · Computer Science 2010-12-02 Harshith C , Karthik R. Shastry , Manoj Ravindran , M. V. V. N. S. Srikanth , Naveen Lakshmikhanth

As intelligent sensing expands into high-privacy environments such as restrooms and changing rooms, the field faces a critical privacy-security paradox. Traditional RGB surveillance raises significant concerns regarding visual recording and…

Cryptography and Security · Computer Science 2026-02-02 Huan Song , Shuyu Tian , Junyi Hao , Cheng Yuan , Zhenyu Jia , Jiawei Shao , Xuelong Li

Motion planning under sensing uncertainty is critical for robots in unstructured environments to guarantee safety for both the robot and any nearby humans. Most work on planning under uncertainty does not scale to high-dimensional robots…

The use of Immersive Technologies has shown its potential to revolutionize many sectors such as health, entertainment, education, and industrial sectors. Immersive technologies such as Virtual Reality (VR), Augmented reality (AR), and Mixed…

Cryptography and Security · Computer Science 2025-10-21 Keshav Sood , Sanjay Selvaraj , Youyang Qu

Gesture and signature passwords are two-dimensional figures created by drawing on the surface of a touchscreen with one or more fingers. Prior results about their security have used resilience to either shoulder surfing, a human observation…

Cryptography and Security · Computer Science 2018-12-27 Can Liu , Shridatt Sugrim , Gradeigh D. Clark , Janne Lindqvist

An increasing number of sensors on mobile, Internet of things (IoT), and wearable devices generate time-series measurements of physical activities. Though access to the sensory data is critical to the success of many beneficial applications…

Machine Learning · Computer Science 2018-06-13 Mohammad Malekzadeh , Richard G. Clegg , Hamed Haddadi

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

Covert communication (also known as steganography) is the practice of concealing a secret inside an innocuous-looking public object (cover) so that the modified public object (covert code) makes sense to everyone but only someone who knows…

Computation and Language · Computer Science 2023-12-29 Leela Raj-Sankar , S. Raj Rajagopalan

Homomorphic encryption, secure multi-party computation, and differential privacy are part of an emerging class of Privacy Enhancing Technologies which share a common promise: to preserve privacy whilst also obtaining the benefits of…

Human-Computer Interaction · Computer Science 2021-01-21 Nitin Agrawal , Reuben Binns , Max Van Kleek , Kim Laine , Nigel Shadbolt

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

Semantic communication (SC) offers promising advancements in data transmission efficiency and reliability by focusing on delivering true meaning rather than solely binary bits of messages. However, privacy concerns in SC might become…

Cryptography and Security · Computer Science 2024-11-26 Xuesong Liu , Yao Sun , Runze Cheng , Le Xia , Hanaa Abumarshoud , Lei Zhang , Muhammad Ali Imran

Anonymous communication networks have emerged as crucial tools for obfuscating communication pathways and concealing user identities. However, their practical deployments face significant challenges, including susceptibility to artificial…

Cryptography and Security · Computer Science 2025-08-05 Chao Ge , Wei Yuan , Ge Chen , Yanbin Pan , Yuan Shen

In the intricate dance of multi-agent systems, achieving average consensus is not just vital--it is the backbone of their functionality. In conventional average consensus algorithms, all agents reach an agreement by individual calculations…

Multiagent Systems · Computer Science 2024-12-12 Huqiang Cheng , Mengying Xie , Xiaowei Yang , Qingguo Lü , Huaqing Li

In the era of cloud computing and data-driven applications, it is crucial to protect sensitive information to maintain data privacy, ensuring truly reliable systems. As a result, preserving privacy in deep learning systems has become a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Fabian Perez , Jhon Lopez , Henry Arguello

We study secure and undetectable communication in a world where governments can read all encrypted communications of citizens. We consider a world where the only permitted communication method is via a government-mandated encryption scheme,…

Cryptography and Security · Computer Science 2019-08-22 Thibaut Horel , Sunoo Park , Silas Richelson , Vinod Vaikuntanathan

Sensor-based interactive systems -- e.g., "smart" speakers, webcams, and RFID tags -- allow us to embed computational functionality into physical environments. They also expose users to real and perceived privacy risks: users know that…

Human-Computer Interaction · Computer Science 2026-04-02 Youngwook Do , Yuxi Wu , Gregory D. Abowd , Sauvik Das

This paper proposes a system, entitled Concealer that allows sharing time-varying spatial data (e.g., as produced by sensors) in encrypted form to an untrusted third-party service provider to provide location-based applications (involving…

Cryptography and Security · Computer Science 2021-02-11 Peeyush Gupta , Sharad Mehrotra , Shantanu Sharma , Nalini Venkatasubramanian , Guoxi Wang

It has been assumed that the physical separation (air-gap) of computers provides a reliable level of security, such that should two adjacent computers become compromised, the covert exchange of data between them would be impossible. In this…

Cryptography and Security · Computer Science 2015-03-30 Mordechai Guri , Matan Monitz , Yisroel Mirski , Yuval Elovici

Gestures performed accompanying the voice are essential for voice interaction to convey complementary semantics for interaction purposes such as wake-up state and input modality. In this paper, we investigated voice-accompanying…

Human-Computer Interaction · Computer Science 2023-03-21 Zisu Li , Cheng Liang , Yuntao Wang , Yue Qin , Chun Yu , Yukang Yan , Mingming Fan , Yuanchun Shi