Active Attacks Against Modulation-Based Radiometric Identification

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Executive Summary

Radiometric identification is a recently coined term that describes a broad category of techniques for determining the identity of a wireless device based on unique characteristics of its transmitted signal that result from imperfections and variances in the device's manufacturing processes. Existing techniques are based on extracting and classifying features from either the transient portion of a signal or, most recently, from patterns of modulation errors in a received signal, such as symbol phase and magnitude errors. While the latter approach was shown to be extremely successful in correctly identifying wireless devices using an expensive high-end signal analyzer, its accuracy has not been considered or evaluated under realistic deployment scenarios in the presence of an adversary who actively tries to manipulate his own radiometric signature.

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