Revisiting context-based authentication in IoT

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

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

22 Citations (Scopus)
428 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 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
Country/TerritoryUnited States
CitySan Francisco
Internet address


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