A Practical Methodology for ML-Based EM Side Channel Disassemblers

Authors: Cesar N. Arguello, Hunter Searle, Sara Rampazzi, Kevin R. B. Butler
Published: 2022-06-21 | Updated: 2022-07-20

Source: https://arxiv.org/abs/2206.10746

PDF: https://arxiv.org/pdf/2206.10746

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Abstract

Providing security guarantees for embedded devices with limited interface capabilities is an increasingly crucial task. Although these devices don’t have traditional interfaces, they still generate unintentional electromagnetic signals that correlate with the instructions being executed. By collecting these traces using our methodology and leveraging a random forest algorithm to develop a machine learning model, we built an EM side channel based instruction level disassembler. The disassembler was tested on an Arduino UNO board, yielding an accuracy of 88.69 instructions captured at a single location in the device; this is an improvement compared to the 75.6 previous similar work.