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Distributed Learning Based Joint Communication and Computation Strategy of IoT Devices in Smart Cities
Open AccessArticle

Location-Aware Wi-Fi Authentication Scheme Using Smart Contract

College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100089, China
Author to whom correspondence should be addressed.
Sensors 2020, 20(4), 1062;
Received: 26 December 2019 / Revised: 3 February 2020 / Accepted: 13 February 2020 / Published: 15 February 2020
(This article belongs to the Special Issue Big Data Driven IoT for Smart Cities)
Advanced wireless technology in Internet of Things (IoT) devices is increasing and facing various security threats. The authentication of IoT devices is the first line of defense for the wireless network. Especially in a Wi-Fi network, the existing authentication methods mainly use a password or digital certificate, these methods are inconvenient to manage due to certificate issuance or prone to be attacked because passwords are easily cracked. In this paper, we propose a location-aware authentication scheme using smart contracts to ensure that IoT devices can securely perform Wi-Fi network authentication. The scheme adopts the concept of secondary authentication and consists of two phases: the registration phase, which is mainly designed to complete the generation of the public and private keys, and to link the device information with its related device information; the authentication phase, which is mainly designed to determine whether the requesting device is within a legal location range. We use the smart contract to ensure the credibility and irreparability of the authentication process. Analysis of the attack model and the attacks at different stages proves that this certification scheme is assured, and the simulation results show that the overhead introduced by this scheme is acceptable, this scheme can provide greater security for the Wi-Fi authentication of IoT devices. View Full-Text
Keywords: authentication; blockchain; channel state information; smart contracts authentication; blockchain; channel state information; smart contracts
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Chen, Y.; Wang, X.; Yang, Y.; Li, H. Location-Aware Wi-Fi Authentication Scheme Using Smart Contract. Sensors 2020, 20, 1062.

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