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Filters: Author is Oh, Mi-Kyung  [Clear All Filters]
2022-12-01
Oh, Mi-Kyung, Lee, Sangjae, Kang, Yousung.  2021.  Wi-SUN Device Authentication using Physical Layer Fingerprint. 2021 International Conference on Information and Communication Technology Convergence (ICTC). :160–162.
This paper aims to identify Wi-SUN devices using physical layer fingerprint. We first extract physical layer features based on the received Wi-SUN signals, especially focusing on device-specific clock skew and frequency deviation in FSK modulation. Then, these physical layer fingerprints are used to train a machine learning-based classifier and the resulting classifier finally identifies the authorized Wi-SUN devices. Preliminary experiments on Wi-SUN certified chips show that the authenticator with the proposed physical layer fingerprints can distinguish Wi-SUN devices with 100 % accuracy. Since no additional computational complexity for authentication is involved on the device side, our approach can be applied to any Wi-SUN based IoT devices with security requirements.