Ausgewählte Publikationen

Hier finden Sie ausgewählte Publikationen aus den letzten Jahren. Eine ausführliche Liste der Publikationen finden Sie auf der Google Scholar oder DBLP Seite von Stefan Schneegaß.

Art der Publikation: Beitrag in Sammelwerk

Stay Cool! Understanding Thermal Attacks on Mobile-based User Authentication

Autor(en):
Yomna Abdelrahman, Mohamed Khamis, Stefan Schneegass, and Florian Alt
Titel des Sammelbands:
Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems (CHI '17)
Seiten:
3751-3763
Verlag:
ACM
Ort(e):
New York, USA
Veröffentlichung:
2017
ISBN:
978-1-4503-4655-9
Digital Object Identifier (DOI):
doi:https://doi.org/10.1145/3025453.3025461
Zitation:
Download RIS

Kurzfassung

PINs and patterns remain among the most widely used knowledge-based authentication schemes. As thermal cameras become ubiquitous and affordable, we foresee a new form of threat to user privacy on mobile devices. Thermal cameras allow performing thermal attacks, where heat traces, resulting from authentication, can be used to reconstruct passwords. In this work we investigate in details the viability of exploiting thermal imaging to infer PINs and patterns on mobile devices. We present a study (N=18) where we evaluated how properties of PINs and patterns influence their thermal attacks resistance. We found that thermal attacks are indeed viable on mobile devices; overlapping patterns significantly decrease successful thermal attack rate from 100% to 16.67%, while PINs remain vulnerable (>72% success rate) even with duplicate digits. We conclude by recommendations for users and designers of authentication schemes on how to resist thermal attacks.

 

Video: https://www.youtube.com/watch?v=FxOBAvI-YFI