Power Analysis

This is a past university project of mine. For more details, see my blogpost.

Contents

Arduino

Firmware running on the arduino. libraries contains a reference implementation of AES in C and a very efficient assembly implementation with C bindings added on top. AES contains a sketch that uses the C implementation while AES_AVR uses the ASM implementation and is far more efficient.

arduino_inter.py

A small python module that can be used to encrypt data with the Arduino firmware.

generate_rks.c

Takes a hardcoded initial key for AES128, expands it into all the roundkeys and dumps it to a file.

measure.py

Coordinates between the oscilloscope and the Arduino to encrypt data and capture the power traces.

scope_inter.py

A small python module that interfaces with the oscilloscope and exposes a tiny python library.

process_data.py

Perform the attack on captured data.

recover_initial_key.py

A short script that takes the final roundkey and returns the initial AES128 key.