BCAuth: Physical Layer Enhanced Authentication and Attack Tracing for Backscatter Communications
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, Volume 17
AbstractBackscatter communication (BC) enables ultra-low-power communications and allows devices to harvest energy simultaneously. But its practical deployment faces severe security threats caused by its nature of openness and broadcast. Authenticating backscatter devices (BDs) is treated as the first line of defense. However, complex cryptographic approaches are not desirable due to the limited computation capability of BDs. Existing physical layer authentication schemes cannot effectively support BD mobility, multiple attacker identification and attacker location tracing in an integrated way. To tackle these problems, this paper proposes BCAuth, a multi-stage authentication and attack tracing scheme based on the physical spatial information of BDs to realize enhanced BD authentication security for both static and mobile BDs. After initial authentication based on BD identity with its position information registration, preemptive authentication and re-authentication are performed according to spatial correlation of backscattered signal source locations associated with the BD. By exploiting clustering-based analysis on spacial information, BCAuth is capable of determining the number of attackers and localizing their positions. In addition, we propose a reciprocal channel-based method for BD re-authentication with better authentication performance than the clustering-based method for mobile BDs when the BDs is able to measure received signal strength (RSS), which also enables mutual authentication. We theoretically analyze BCAuth security and conduct extensive numerical simulations with various settings to show its desirable performance.
Funding Information: This work was supported in part by the National Natural Science Foundation of China under Grant 62072351; in part by the Academy of Finland under Grant 345072, Grant 308087, Grant 335262, and Grant 350464; in part by the Open Research Project of Zhejiang Laboratory under Grant 2021PD0AB01; in part by the 111 Project under Grant B16037; and in part by the U.S. National Science of Foundation through Networking Technology and Systems (NeTS) Program under Project 2131507. Publisher Copyright: © 2005-2012 IEEE.
attack detection, Backscatter communication, device authentication, physical layer security, positioning
Wang , P , Yan , Z & Zeng , K 2022 , ' BCAuth: Physical Layer Enhanced Authentication and Attack Tracing for Backscatter Communications ' , IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY , vol. 17 , pp. 2818-2834 . https://doi.org/10.1109/TIFS.2022.3195407