Revisiting context-based authentication in IoT

Markus Miettinen, Thien Duc Nguyen, Ahmad-Reza Sadeghi, N. Asokan
2018 Proceedings of the 55th Annual Design Automation Conference on - DAC '18  
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
more » ... tication 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.
doi:10.1145/3195970.3196106 dblp:conf/dac/MiettinenNSA18 fatcat:6qjhvgtmfvgxfmkv47arr27fxa