A Physical-Layer Key Distribution Mechanism for IoT Networks


Physical layer security has gained an increasing attention due to its efficiency and simplicity as compared to other conventional security protocols. Thus, it has been recently nominated for Internet of Things (IoT) applications. In this paper, a novel key distribution mechanism is proposed for IoT networks. The proposed mechanism exploits the channel diversity to distribute encryption keys among nodes within the network. A main novelty aspect of the proposed mechanism is that it guarantees distributing different keys with different lengths to all nodes at the same time. In addition, an intelligent eavesdropper model has been considered. Simulation results prove the high performance of the proposed scheme and its robustness against channel estimation errors, and immunity against eavesdroppers.

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Change history

  • 28 March 2019

    The original version of this article unfortunately contained mistakes in the author group and affiliation sections.


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Correspondence to Mohanad Alhasanat.

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The original version of this article was revised: Author Khalid A. Darabkh’s surname was mispelled as “Darabkeh” and his affiliation should be updated to “Computer Engineering Department, School of Engineering, The University of Jordan”.

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Alhasanat, M., Althunibat, S., Darabkh, K.A. et al. A Physical-Layer Key Distribution Mechanism for IoT Networks. Mobile Netw Appl 25, 173–178 (2020). https://doi.org/10.1007/s11036-019-01219-5

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  • Physical layer security
  • Key distribution
  • Internet of things