Medusa3D: The Watchful Eye Freezing Illegitimate Users in Virtual Reality Interactions
Authors: 
Aochen Jiao, 
Di Duan, Weitao XuAuthors Info & Claims
Article No.: 270, Pages 1 - 21
Abstract
The remarkable growth of Virtual Reality (VR) in recent years has extended its applications beyond entertainment to sectors including education, e-commerce, and remote communication. Since VR devices contain user's private information, user authentication becomes increasingly important. Current authentication systems in VR, such as password-based or static biometric-based methods, are either cumbersome to use or vulnerable to attacks such as shoulder surfing. To address these limitations, we propose Medusa3D, a challenge-response authentication system for VR based on reflexive eye responses. Unlike existing methods, reflexive eye responses are involuntary and effortless, offering a secure and user-friendly credential for authentication. We implement Medusa3D on an off-the-shelf VR and conduct evaluations with 25 participants. The evaluation results show that Medusa3D achieves 0.21% FAR and 0.13% FRR, demonstrating high security under various ocular conditions and resilience against attacks such as zero-effort attack, replay attack, and mimicry attack. A user study indicates that Medusa3D is user-friendly and well-adopted among participants.
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Index Terms
- Medusa3D: The Watchful Eye Freezing Illegitimate Users in Virtual Reality Interactions
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Published: 24 September 2024
Published in PACMHCI Volume 8, Issue MHCI
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- NSF of Shandong Province
- National Natural Science Foundation of China
- Innovation and Technology Commission of Hong Kong
- Natural Science Foundation of Guangdong Province
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