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Phantom Eavesdropping With Whitened RF Leakage

Authors
Shao, ChenglongJang, WonwooPark, HoorinSung, JekyungJung, YeongilLee, Wonjun
Issue Date
2월-2020
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Wireless fidelity; Radio frequency; Phantoms; Eavesdropping; Frequency-domain analysis; Decoding; OFDM; Eavesdropping; Wi-Fi; local oscillator; RF leakage; Fourier transform; frequency offset
Citation
IEEE WIRELESS COMMUNICATIONS LETTERS, v.9, no.2, pp.232 - 235
Indexed
SCIE
SCOPUS
Journal Title
IEEE WIRELESS COMMUNICATIONS LETTERS
Volume
9
Number
2
Start Page
232
End Page
235
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/57851
DOI
10.1109/LWC.2019.2949316
ISSN
2162-2337
Abstract
Recent studies figure out that hidden eavesdroppers can be detected through RF (radio frequency) leakage from their local oscillators. Inspired by this finding, this letter presents Phantom Eavesdropping, an emerging wireless signal eavesdropping technique which renders hidden eavesdroppers immune to the RF leakage-based detection to further conceal their presence. At its heart is a dynamic alteration process regarding the local oscillator's oscillation frequency. As a result, the RF leakage from the local oscillator is whitened in the frequency domain and thus the corresponding eavesdropper becomes footprint-less. Practical experiment shows that Phantom Eavesdropping does not affect normal Wi-Fi eavesdropping while further rendering eavesdroppers transparent to eavesdropper detectors.
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