Revisiting context-based authentication in IoT

Markus Miettinen, Thien Duc Nguyen, Ahmad Reza Sadeghi, N. Asokan

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

5 Citations (Scopus)
208 Downloads (Pure)


The emergence of IoT poses new challenges towards solutions for authenticating numerous very heterogeneous IoT devices to their respective trust domains. Using passwords or pre-defined keys have drawbacks that limit their use in IoT scenarios. Recent works propose to use contextual information about ambient physical properties of devices' surroundings as a shared secret to mutually authenticate devices that are co-located, e.g., the same room. In this paper, we analyze these context-based authentication solutions with regard to their security and requirements on context quality. We quantify their achievable security based on empirical real-world data from context measurements in typical IoT environments.

Original languageEnglish
Title of host publicationProceedings of the 55th Annual Design Automation Conference, DAC 2018
VolumePart F137710
ISBN (Print)9781450357005
Publication statusPublished - 24 Jun 2018
MoE publication typeA4 Article in a conference publication
EventAnnual Design Automation Conference - San Francisco, United States
Duration: 24 Jun 201829 Jun 2018
Conference number: 55


ConferenceAnnual Design Automation Conference
Abbreviated titleDAC
CountryUnited States
CitySan Francisco
Internet address

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    Miettinen, M., Nguyen, T. D., Sadeghi, A. R., & Asokan, N. (2018). Revisiting context-based authentication in IoT. In Proceedings of the 55th Annual Design Automation Conference, DAC 2018 (Vol. Part F137710). [a32] IEEE.