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Pysca toolbox

This toolbox was started in 2014 to experiment with efficient differential power analysis (DPA) techniques from the paper "Behind the Scene of Side Channel Attacks" by Victor Lomné, Emmanuel Prouff, and Thomas Roche (https://eprint.iacr.org/2013/794).

To clone this repo with the included example traces you will need Git-LFS. Without Git-LFS, only pointers to traces will be cloned.

Why

The toolbox was designed with the following in mind:

In terms of these points, Pysca (still) outperforms some commercial tooling. Pysca is nowadays mostly superseded by https://github.com/Riscure/Jlsca.

What

Pysca implements:

How

For usage basics refer to the HOWTO.

For a deeper dive into leakage modelling using linear regression, clone the tutorial into the subfolder:

git clone https://github.com/ikizhvatov/leakage-modelling-tutorial.git

Details

Pysca works on traces stored in npz (numpy zipped) format. Example tracesets are included in the repo using git-lfs. The conversion script from Riscure Inspector trs format is included. The trs reader was originally implemented by Erik van den Brink.

Under the hood, the most interesting technical tricks in pysca are perhaps:

Author: Ilya Kizhvatov<br> Version: 1.0, 2017-05-14