Video-Based Cryptanalysis: Extracting Cryptographic Keys from Video Footage of a Device’s Power LED

ePrint Report: Video-Based Cryptanalysis: Extracting Cryptographic Keys from Video Footage of a Device’s Power LED

Ben Nassi, Etay Iluz, Or Cohen, Ofek Vayner, Dudi Nassi, Boris Zadov, Yuval Elovici

In this paper, we present video-based cryptanalysis,
a new method used to recover secret keys from a device by
analyzing video footage of a device’s power LED. We show that
cryptographic computations performed by the CPU change the
power consumption of the device which affects the brightness of
the device’s power …

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