A two-layers automultiscopic display as a resistant device to shoulder-surfing attacks

  1. David Carmona-Ballester 1
  2. Sergio Bonaque-González 2
  3. Juan M. Trujillo-Sevilla 2
  4. Óscar Gómez-Cárdenes 2
  5. José M. Rodríguez-Ramos 2
  1. 1 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

  2. 2 Wooptix S.L., Av. Trinidad-Torre Agustín Arévalo, San Cristóbal de La Laguna 38205, Spain
Journal:
Óptica pura y aplicada

ISSN: 2171-8814

Year of publication: 2022

Volume: 55

Issue: 4

Type: Article

DOI: 10.7149/OPA.55.4.51111 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Óptica pura y aplicada

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Abstract

Shoulder surfing is a term that implies the theft of sensitive information when interacting with digital devices. It is of particular concern when authenticating in public places. We present a passive method to prevent it based on the use of an automultiscopic display, originally designed to generate threedimensional effects, to project different images in each direction, producing a blurry image unrecognizable to any shoulder surfer; while the genuine user can observe the display without penalty. We demonstrate that it is possible to achieve privacy criteria using two digital displays operating at 133 Hz by choosing the blocked views as prudently filtered versions of the original pattern. In addition, we propose a merit function that allows to automatically evaluate the readability of each displayed view.

Data source: Dialnet