$ ctf42

Sleepy_CPU

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Author: simen

Flag format: NNS{...}

by simen Miscellaneous beginner hardware Power analysis is a technique where the current consumption of a device is measured to gather information about what it is doing.

The attached .jls file contains measurements of the current consumption of a real microcontroller board executing the supplied code. It can be opened and viewed in the Joulescope application.

Analyse the provided firmware source code and the current measurements to extract the flag.

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