@InProceedings{abdelrahman2022avi,
  author    = {Abdelrahman, Yomna and Mathis, Florian and Knierim, Pascal and Kettler, Axel and Alt, Florian and Khamis, Mohamed},
  booktitle = {Proceedings of the 2022 International Conference on Advanced Visual Interfaces},
  title     = {CueVR: Studying the Usability of Cue-Based Authentication for Virtual Reality},
  year      = {2022},
  address   = {New York, NY, USA},
  note      = {abdelrahman2022avi},
  publisher = {Association for Computing Machinery},
  series    = {AVI 2022},
  abstract  = {Existing virtual reality (VR) authentication schemes are either slow or prone to observation attacks. We propose CueVR, a cue-based authentication scheme that is resilient against observation attacks by design since vital cues are randomly generated and only visible to the user experiencing the VR environment. We investigate three different input modalities through an in-depth usability study (N=20) and show that while authentication using CueVR is slower than the less secure baseline, it is faster than existing observation resilient cue-based schemes and VR schemes (4.151 s – 7.025 s to enter a 4-digit PIN). Our results also indicate that using the controllers’ trackpad significantly outperforms input using mid-air gestures. We conclude by discussing how visual cues can enhance the security of VR authentication while maintaining high usability. Furthermore, we show how existing real-world authentication schemes combined with VR’s unique characteristics can advance future VR authentication procedures.},
  articleno = {34},
  doi       = {10.1145/3531073.3531092},
  isbn      = {9781450397193},
  keywords  = {Authentication, Usable Security, Virtual Reality},
  location  = {Frascati, Rome, Italy},
  numpages  = {9},
  timestamp = {2022.04.30},
  url       = {http://www.florian-alt.org/unibw/wp-content/publications/prange2022avi.pdf},
}