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Fast gated avalanche photodiodes (APDs) are the most commonly used single photon detectors for high bit rate quantum key distribution (QKD). Their robustness against external attacks is crucial to the overall security of a QKD system or…

In this paper, a part-based technique for real time detection of users' faces on mobile devices is proposed. This method is specifically designed for detecting partially cropped and occluded faces captured using a smartphone's front-facing…

Computer Vision and Pattern Recognition · Computer Science 2017-04-10 Upal Mahbub , Vishal M. Patel , Deepak Chandra , Brandon Barbello , Rama Chellappa

Prevailing user authentication schemes on smartphones rely on explicit user interaction, where a user types in a passcode or presents a biometric cue such as face, fingerprint, or iris. In addition to being cumbersome and obtrusive to the…

Computer Vision and Pattern Recognition · Computer Science 2019-01-17 Debayan Deb , Arun Ross , Anil K. Jain , Kwaku Prakah-Asante , K. Venkatesh Prasad

This paper develops a glocal (global-local) attack detection framework to detect stealthy cyber-physical attacks, namely covert attack and zero-dynamics attack, against a class of multi-agent control systems seeking average consensus. The…

Systems and Control · Electrical Eng. & Systems 2023-10-27 Rayan Bahrami , Hamidreza Jafarnejadsani

We consider the problem of tracking an intruder using a network of wireless sensors. For tracking the intruder at each instant, the optimal number and the right configuration of sensors has to be powered. As powering the sensors consumes…

Artificial Intelligence · Computer Science 2018-02-27 Raghuram Bharadwaj Diddigi , Prabuchandran K. J. , Shalabh Bhatnagar

Few-shot-based facial recognition systems have gained increasing attention due to their scalability and ability to work with a few face images during the model deployment phase. However, the power of facial recognition systems enables…

Cryptography and Security · Computer Science 2023-04-07 Min Chen , Zhikun Zhang , Tianhao Wang , Michael Backes , Yang Zhang

Enterprises are facing increasing risks of insider threats, while existing detection methods are unable to effectively address these challenges due to reasons such as insufficient temporal dynamic feature modeling, computational efficiency…

Cryptography and Security · Computer Science 2025-08-11 Kaichuan Kong , Dongjie Liu , Xiaobo Jin , Zhiying Li , Guanggang Geng , Jian Weng

We introduce a novel approach to user authentication called Motion ID. The method employs motion sensing provided by inertial measurement units (IMUs), using it to verify the persons identity via short time series of IMU data captured by…

With the rapid growth in smartphone usage, more organizations begin to focus on providing better services for mobile users. User identification can help these organizations to identify their customers and then cater services that have been…

Cryptography and Security · Computer Science 2017-11-16 Lichao Sun , Yuqi Wang , Bokai Cao , Philip S. Yu , Witawas Srisa-an , Alex D Leow

Most intrusion detection systems still identify attacks only after significant damage has occurred, detecting late-stage tactics rather than early indicators of compromise. This paper introduces a temporal analysis framework and taxonomy…

Cryptography and Security · Computer Science 2025-11-07 Tatiana S. Parlanti , Carlos A. Catania

The problem of quickest change detection is studied in the context of detecting an arbitrary unknown mean-shift in multiple independent Gaussian data streams. The James-Stein estimator is used in constructing detection schemes that exhibit…

Statistics Theory · Mathematics 2026-04-21 Topi Halme , Venugopal V. Veeravalli , Visa Koivunen

Integrated photonics has the advantages of miniaturization, low cost, and CMOS compatibility, and it provides a stable, highly integrated, and practical platform for quantum key distribution (QKD). While photonic integration of optical…

Quantum Physics · Physics 2020-07-08 Lingwen Kong , Zhihao Li , Congxiu Li , Lin Cao , Zeyu Xing , Junqin Cao , Yaxin Wang , Xinlun Cai , Xiaoqi Zhou

Agentic AI and Multi-Agent Systems are poised to dominate industry and society imminently. Powered by goal-driven autonomy, they represent a powerful form of generative AI, marking a transition from reactive content generation into…

Software Engineering · Computer Science 2025-12-29 Brian Bowers , Smita Khapre , Jugal Kalita

Quantum key distribution (QKD) and quantum message encryption protocols promise a secure way to distribute information while detecting eavesdropping. However, current protocols may suffer from significantly reduced eavesdropping protection…

Quantum Physics · Physics 2025-05-27 Nicholas J. C. Papadopoulos , Kirby Linvill

The success of deep neural networks (DNNs) has promoted the widespread applications of person re-identification (ReID). However, ReID systems inherit the vulnerability of DNNs to malicious attacks of visually inconspicuous adversarial…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Xueping Wang , Shasha Li , Min Liu , Yaonan Wang , Amit K. Roy-Chowdhury

Massive Machine-Type Communications (mMTC) is a key service category in the current generation of wireless networks featuring an extremely high density of energy and resource-limited devices with sparse and sporadic activity patterns. In…

Information Theory · Computer Science 2023-03-14 Jyotish Robin , Elza Erkip

Grant-free random access and uplink non-orthogonal multiple access (NOMA) have been introduced to reduce transmission latency and signaling overhead in massive machine-type communication (mMTC). In this paper, we propose two novel…

Information Theory · Computer Science 2023-03-01 Thushan Sivalingam , Samad Ali , Nurul Huda Mahmood , Nandana Rajatheva , Matti Latva-Aho

The rogue DHCP is unauthorized server that releases the incorrect IP address to users and sniffs the traffic illegally. The contribution specially provides privacy to users and enhances the security aspects of mobile supported collaborative…

Cryptography and Security · Computer Science 2012-10-09 Abdul Razaque , Khaled Elleithy

This study investigates the effectiveness of multifactor authentication (MFA) in protecting commercial accounts from unauthorized access, with an additional focus on accounts with known credential leaks. We employ the benchmark-multiplier…

Cryptography and Security · Computer Science 2023-05-02 Lucas Augusto Meyer , Sergio Romero , Gabriele Bertoli , Tom Burt , Alex Weinert , Juan Lavista Ferres

This paper investigates the grant-free random access with massive IoT devices. By embedding the data symbols in the signature sequences, joint device activity detection and data decoding can be achieved, which, however, significantly…

Machine Learning · Computer Science 2020-01-29 Jialin Dong , Jun Zhang , Yuanming Shi , Jessie Hui Wang