About

Main repository of the PhaseSCA project.

This repository contains the data and experiments of the project.

Publication

This project led to the following TCHES publication: Pierre Ayoub, Aurélien Hernandez, Romain Cayre, Aurélien Francillon, Clémentine Maurice (2025), PhaseSCA: Exploiting Phase-Modulated Emanations in Side Channels. IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES'25). https://tches.iacr.org/index.php/TCHES/article/view/11934 https://hal.science/hal-04726109

This project is also part of my Ph.D. Thesis, not yet published.

How to cite

@Article{ayoub25phasesca,
  title         = {{PhaseSCA: Exploiting Phase-Modulated Emanations in Side
                  Channels}},
  author        = {Ayoub, Pierre and Hernandez, Aur{\'e}lien and Cayre,
                  Romain and Francillon, Aur{\'e}lien and Maurice,
                  Cl{\'e}mentine},
  journal       = {IACR Transactions on Cryptographic Hardware and Embedded
                  Systems (TCHES)},
  publisher     = {{IACR}},
  volume        = {2025},
  doi           = {10.46586/tches.v2025.i1.392-419},
  number        = {1},
  pages         = {392–419},
  year          = {2024},
  month         = {Dec.},
  url           = {https://tches.iacr.org/index.php/TCHES/article/view/11934},
  urlfile       = {https://tches.iacr.org/index.php/TCHES/article/view/11934/11793},
  keywords      = {Side-channel attacks ; Power/Electromagnetic analysis ;
                  Unintended modulation ; Phase modulation ; Angle modulation
                  ; Clock jitter},
  hal_local_reference={Rapport LAAS n{\textdegree} 25001},
  hal_url       = {https://hal.science/hal-04726109},
  hal_pdf       = {https://hal.science/hal-04726109v1/file/paper.pdf},
  hal_id        = {hal-04726109},
  hal_version   = {v1},
  affiliations  = {Eurecom, Univ Lille, CNRS, Inria}
}

Requirements

Software

• phase_fw

Source code used to flash the firmware we used on our target devices during our attacks. Required to perform the data collection.

• SoapyRX

Utility used to record I/Q signals from the target device emanations using a software-defined radio (SDR). Required to perform the data collection.

• SCAFF

Used to to process and analyze the datasets composed of I/Q signals. Required to perform the data analysis and the attacks.

Hardware

• SDR: Pick one supported by SoapyRX.
• Near-field probes: Can be a COTS one or a handmade for frequencies between 8 and 128 MHz.
• Device Under Test (DUT): Pick one described in the paper.

Storage

This repository is managed using git-annex. Around 400 GB of data is currently deduplicated and spread across 4 instances, including workstations and external mass storage devices.

Files

• expe

Experiments of the project.

• sets

Datasets built during the project.

• src

Scripts to work with the repository.