Abstract
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.
Highlights
With advanced 5G in Internet of Things (IoT) technology, a large number of embedded devices have data processing and network connectivity capabilities to provide smarter services
The authentication phase uses the random instruction, and uses the Channel state information (CSI) information returned by the related devices to confirm whether the requesting device is in a legal location
Our goal is to propose a method for judging the legitimacy of IoT devices that need to be connected to the network, preventing devices from challenge–response system to confirm that the requesting device correctly illegal executes the random appearing in the protected and attempting to access the network to ensure the security of thethe instruction, and uses the CSI information returned by the related devices to confirm whether entire network
Summary
With advanced 5G in Internet of Things (IoT) technology, a large number of embedded devices have data processing and network connectivity capabilities to provide smarter services. We propose a location-aware authentication scheme using a smart contract to ensure that IoT devices can securely perform Wi-Fi network authentication. This method adopts the concept of secondary authentication, which requires a password, and associates an IoT device authentication with other IoT devices, and uses the hard-to-forge physical layer channel state information (CSI) information which can be captured by a specific model of wireless card, such as a IWL5300 corresponding to the physical location as a judgment, using the smart contract to ensure the credibility and irreparability of the authentication process This scheme is divided into two phases: The first phase is the registration phase, which is mainly to complete the public key and private key generation of the requesting device and to link the device information with its related device information.
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