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http://dx.doi.org/10.6109/jkiice.2022.26.5.793

NBAS: NFT-based Bluetooth Device Authentication System  

Hwang, Seong-Uk (Department of Computer Engineering, Changwon National University)
Son, Sung-Moo (Department of Computer Engineering, Changwon National University)
Chung, Sung-Wook (Department of Computer Engineering, Changwon National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.26, no.5, 2022 , pp. 793-801 More about this Journal
Abstract
Most Bluetooth devices are commonly used in various ways these days, but they can be often lost due to small-size devices. However, most Bluetooth protocol do not provide authentication functions to legitimate owners, and thus someone who obtains the lost Bluetooth device can easily connect to their smart devices to use it. In this paper, we propose NBAS can authenticates legitimate owners using NFT on lossy Bluetooth devices.NBAS generates a digital wallet on the blockchain using the decentralized network Ethereum blockchain and facilitating the MAC address of the Bluetooth device in the digital wallet. The owner of the wallet uses a private key to certify the Bluetooth device using NFT. The initial pairing time of NBAS was 10.25 sec, but the reconnection time was 0.007 sec similar to the conventional method, and the pairing rejection time for unapproved users was 1.58 sec on average. Therefore, the proposed NBAS effectively shows the device authentication over the conventional Bluetooth.
Keywords
NBAS; NFT; Authentication; Bluetooth; IoT;
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