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Biometrics technologies are gaining popularity today since they provide more reliable and efficient means of authentication and verification. Keystroke Dynamics is one of the famous biometric technologies, which will try to identify the…

Cryptography and Security · Computer Science 2009-10-06 D. Shanmugapriya , G. Padmavathi

A new method to generate gummy fingers is presented. A medium-size fake fingerprint database is described and two different fingerprint verification systems are evaluated on it. Three different scenarios are considered in the experiments,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Javier Galbally , Julian Fierrez-Aguilar , Joaquin Rodriguez-Gonzalez , Fernando Alonso-Fernandez , Javier Ortega-Garcia , Marino Tapiador

Recently, surface electromyogram (EMG) has been proposed as a novel biometric trait for addressing some key limitations of current biometrics, such as spoofing and liveness. The EMG signals possess a unique characteristic: they are…

Cryptography and Security · Computer Science 2022-12-02 Ashirbad Pradhan , Jiayuan He , Ning Jiang

Creating a diverse and comprehensive dataset of hand gestures for dynamic human-machine interfaces in the automotive domain can be challenging and time-consuming. To overcome this challenge, we propose using synthetic gesture datasets…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Amr Gomaa , Robin Zitt , Guillermo Reyes , Antonio Krüger

Security questions are one of the mechanisms used to recover passwords. Strong answers to security questions (i.e. high entropy) are hard for attackers to guess or obtain using social engineering techniques (e.g. monitoring of social…

Cryptography and Security · Computer Science 2017-09-26 Nicholas Micallef , Nalin Asanka Gamagedara Arachchilage

Mobile applications are widely used for online services sharing a large amount of personal data online. One-time authentication techniques such as passwords and physiological biometrics (e.g., fingerprint, face, and iris) have their own…

Cryptography and Security · Computer Science 2023-02-07 Hossein Fereidooni , Jan König , Phillip Rieger , Marco Chilese , Bora Gökbakan , Moritz Finke , Alexandra Dmitrienko , Ahmad-Reza Sadeghi

Passwords provide security mechanism for authentication and protection services against unwanted access to resources. A graphical based password is one promising alternatives of textual passwords. According to human psychology, humans are…

Cryptography and Security · Computer Science 2011-10-19 Wazir Zada Khan , Mohammed Y. Aalsalem , Yang Xiang

Artificial intelligence has the potential to impact safety and efficiency in safety-critical domains such as construction, manufacturing, and healthcare. For example, using sensor data from wearable devices, such as inertial measurement…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Farida Al Haddad , Yuxin Wang , Malcolm Mielle

We investigate whether a classifier can continuously authenticate users based on the way they interact with the touchscreen of a smart phone. We propose a set of 30 behavioral touch features that can be extracted from raw touchscreen logs…

Cryptography and Security · Computer Science 2013-01-08 Mario Frank , Ralf Biedert , Eugene Ma , Ivan Martinovic , Dawn Song

Mobile authentication is indispensable for preventing unauthorized access to multi-touch mobile devices. Existing mobile authentication techniques are often cumbersome to use and also vulnerable to shoulder-surfing and smudge attacks. This…

Cryptography and Security · Computer Science 2014-02-07 Jingchao Sun , Rui Zhang , Jinxue Zhang , Yanchao Zhang

Static and dynamic hand movements are basic way for human-machine interactions. To recognize and classify these movements, first these movements are captured by the cameras mounted on the augmented reality (AR) or virtual reality (VR)…

Human-Computer Interaction · Computer Science 2020-04-03 Nizamuddin Maitlo , Yanbo Wang , Chao Ping Chen , Lantian Mi , Wenbo Zhang

The discrimination of human gestures using wearable solutions is extremely important as a supporting technique for assisted living, healthcare of the elderly and neurorehabilitation. This paper presents a mobile electromyography (EMG)…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Enea Ceolini , Gemma Taverni , Lyes Khacef , Melika Payvand , Elisa Donati

We introduce SemanticLock, a single factor graphical authentication solution for mobile devices. SemanticLock uses a set of graphical images as password tokens that construct a semantically memorable story representing the user`s password.…

Cryptography and Security · Computer Science 2019-10-11 Ilesanmi Olade , Haining Liang , Charles Fleming

This paper presents a two-dimension fuzzy set based approach for matching touch-based gestures using fuzzy cued click point technique. The pro posed approach aims mainly to improve the acceptance of the most closed inac curate hand drawn…

Human-Computer Interaction · Computer Science 2025-07-31 Adel Sabour , Ahmed Gadallah , Hesham Hefny

Public touchscreens are filthy and, regardless of how often they are cleaned, they pose a considerable risk in the transmission of bacteria and viruses. While we rely on their use, we should find a feasible alternative to touch devices.…

Human-Computer Interaction · Computer Science 2021-08-27 Kieran Waugh , Judy Robertson

Secure communication is essential in covert and safety-critical settings where verbal interactions may expose user intent or operational context. Wearable gesture-based communication enables low-effort, nonverbal interaction, but existing…

Cryptography and Security · Computer Science 2026-02-10 Tasnia Ashrafi Heya , Sayed Erfan Arefin

We designed and tested a system for real-time control of a user interface by extracting surface electromyographic (sEMG) activity from eight electrodes in a wrist-band configuration. sEMG data were streamed into a machine-learning algorithm…

Voice interfaces are increasingly used in high stakes domains such as mobile banking, smart home security, and hands free healthcare. Meanwhile, modern generative models have made high quality voice forgeries inexpensive and easy to create,…

Cryptography and Security · Computer Science 2026-02-23 Ynes Ineza , Muhammad A. Ullah , Abdul Serwadda , Aurore Munyaneza

A player plays a game by sending messages into the game world using an interaction technique. These messages are then translated into actions performed on or by game objects towards achieving the game's objectives. A game's interaction…

Human-Computer Interaction · Computer Science 2021-06-29 Misbahu S. Zubair , Salim Muhammad

The movement of a user's face, easily detected by a smartphone's front camera, is an underexploited input modality for mobile interactions. We introduce three sets of face-engaged interaction techniques for augmenting the traditional mobile…

Human-Computer Interaction · Computer Science 2016-10-04 Jian Zhao , Ricardo Jota , Daniel Wigdor , Ravin Balakrishnan