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Implicit authentication consists of a server authenticating a user based on the user's usage profile, instead of/in addition to relying on something the user explicitly knows (passwords, private keys, etc.). While implicit authentication…

Cryptography and Security · Computer Science 2015-03-03 Josep Domingo-Ferrer , Qianhong Wu , Alberto Blanco-Justicia

Quantum computers based on gate-defined quantum dots (QDs) are expected to scale. However, as the number of qubits increases, the burden of manually calibrating these systems becomes unreasonable and autonomous tuning must be used. There…

Mesoscale and Nanoscale Physics · Physics 2023-10-02 Joshua Ziegler , Florian Luthi , Mick Ramsey , Felix Borjans , Guoji Zheng , Justyna P. Zwolak

To mitigate the noise in quantum channels, calibration is used to tune the devices to minimize error. Generally, calibration is performed by transmitting pre-agreed-upon calibration states and determining an error cost so the two parties…

Quantum Physics · Physics 2024-04-23 Ankit Khandelwal , Stephen DiAdamo

In this paper, we propose a new type of side channel which is based on the ambient-light sensor employed in today's mobile devices. The pervasive usage of mobile devices, i.e., smartphones and tablet computers and their vast amount of…

Cryptography and Security · Computer Science 2014-05-16 Raphael Spreitzer

Intimate Partner Infiltration (IPI)--a type of Intimate Partner Violence (IPV) that typically requires physical access to a victim's device--is a pervasive concern around the world, often manifesting through digital surveillance, control,…

Cryptography and Security · Computer Science 2025-06-13 Weisi Yang , Shinan Liu , Feng Xiao , Nick Feamster , Stephen Xia

To solve complex tasks, large language models (LLMs) often require multiple rounds of interactions with the user, sometimes assisted by external tools. However, current evaluation protocols often emphasize benchmark performance with…

Computation and Language · Computer Science 2024-03-13 Xingyao Wang , Zihan Wang , Jiateng Liu , Yangyi Chen , Lifan Yuan , Hao Peng , Heng Ji

Handwriting is a natural and versatile method for human-computer interaction, especially on small mobile devices such as smart phones. However, as handwriting varies significantly from person to person, it is difficult to design handwriting…

Human-Computer Interaction · Computer Science 2014-09-11 Sunsern Cheamanunkul , Yoav Freund

Computationally efficient, accurate, and privacy-preserving data storage and retrieval are among the key challenges faced by practical deployments of biometric identification systems worldwide. In this work, a method of protected indexing…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Pawel Drozdowski , Fabian Stockhardt , Christian Rathgeb , Dailé Osorio-Roig , Christoph Busch

The precise and automated calibration of quantum gates is a key requirement for building a reliable quantum computer. Unlike errors from decoherence, systematic errors can in principle be completely removed by tuning experimental…

Quantum Physics · Physics 2021-01-25 Pascal Cerfontaine , René Otten , Hendrik Bluhm

This paper proposes an adaptive admittance controller for improving efficiency and safety in physical human-robot interaction (pHRI) tasks in small-batch manufacturing that involve contact with stiff environments, such as drilling,…

Robotics · Computer Science 2024-07-22 Pouya P. Niaz , Engin Erzin , Cagatay Basdogan

Biometric authentication methods, representing the "something you are" scheme, are considered the most secure approach for gaining access to protected resources. Recent attacks using Machine Learning techniques demand a serious systematic…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Arbena Musa , Kamer Vishi , Blerim Rexha

Emotion recognition through artificial intelligence and smart sensing of physical and physiological signals (Affective Computing) is achieving very interesting results in terms of accuracy, inference times, and user-independent models. In…

Human-Computer Interaction · Computer Science 2024-10-08 Laura Gutierrez-Martin , Celia Lopez Ongil , Jose M. Lanza-Gutierrez , Jose A. Miranda Calero

Fingerprint authentication is a popular security mechanism for smartphones and laptops. However, its adoption in web and cloud environments has been limited due to privacy concerns over storing and processing biometric data on servers. This…

Cryptography and Security · Computer Science 2024-04-02 Hyunmin Choi , Simon Woo , Hyoungshick Kim

Persons with visual impairments have often been a soft target for cybercriminals, and they are more susceptible to cyber attacks in the digital environment. The attacks, as mentioned above, are because they are visually/aurally exposed to…

Human-Computer Interaction · Computer Science 2023-05-19 Balayogi G , Kuppusamy K S

Despite the general capabilities of Large Language Models (LLM), these models still request fine-tuning or adaptation with customized data when meeting specific business demands. However, this process inevitably introduces new threats,…

Cryptography and Security · Computer Science 2024-06-21 Jiongxiao Wang , Jiazhao Li , Yiquan Li , Xiangyu Qi , Junjie Hu , Yixuan Li , Patrick McDaniel , Muhao Chen , Bo Li , Chaowei Xiao

Studies on backdoor attacks in recent years suggest that an adversary can compromise the integrity of a deep neural network (DNN) by manipulating a small set of training samples. Our analysis shows that such manipulation can make the…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Nazmul Karim , Abdullah Al Arafat , Adnan Siraj Rakin , Zhishan Guo , Nazanin Rahnavard

In introductory programming courses, it is challenging for instructors to provide debugging feedback on students' incorrect programs. Some recent tools automatically offer program repair feedback by identifying any differences between…

Software Engineering · Computer Science 2021-07-15 Yunlong Lu , Na Meng , Wenxin Li

Backdoor attacks pose a significant threat to deep neural networks, particularly as recent advancements have led to increasingly subtle implantation, making the defense more challenging. Existing defense mechanisms typically rely on an…

Cryptography and Security · Computer Science 2024-09-19 Yukai Xu , Yujie Gu , Kouichi Sakurai

We present the first acoustic side-channel attack that recovers what users type on the virtual keyboard of their touch-screen smartphone or tablet. When a user taps the screen with a finger, the tap generates a sound wave that propagates on…

Cryptography and Security · Computer Science 2019-03-28 Ilia Shumailov , Laurent Simon , Jeff Yan , Ross Anderson

In the context of biometrics, matching confidence refers to the confidence that a given matching decision is correct. Since many biometric systems operate in critical decision-making processes, such as in forensics investigations,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Pedro C. Neto , Ana F. Sequeira , Jaime S. Cardoso , Philipp Terhörst
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