Flexible Open-source workBench fOr Side-channel analysis (FOBOS) is an "acquisition to analysis" solution which includes all necessary software to control the device under test (attack) (DUT), trigger the oscilloscope, obtain the measurements and analyze them using several power analysis techniques.

FOBOS splits the Side Channel Analysis (SCA) setup into a control board, a DUT, and the SCA workstation. The firmware for the control board can be found in the folder control. The hardware description language files required to adapt a cryptographic algorithm to a particular FOBOS DUT are in the folder DUT. The hardware folder on the other hand contains circuit board design files for FOBOS boards such as the FOBOS Shield and several FOBOS DUTs. The software folder contains the scripts to run FOBOS. These python scripts run partially on the SCA workstation within a Jupyter notebook and partially on the Pynq DUT. The docs folder contains the FOBOS documentation.

Please cite as:

@inproceedings{fobos3,
author = {Ferrufino, Eduardo and Beckwith, Luke and Abdulgadir, Abubakr and Kaps, Jens-Peter},
title = {{FOBOS} 3: An Open-Source Platform for Side-Channel Analysis and Benchmarking},
year = {2023},
isbn = {9798400702624},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/3605769.3623987},
doi = {10.1145/3605769.3623987},
pages = {5--14},
keywords = {hardware security, lightweight cryptography, side-channel analysis, benchmarking},
location = {, Copenhagen, Denmark, },
series = {ASHES '23}
}

• control VHDL sources for configuring the FOBOS Control Boards. Requires Xilinx Vivado 2022.1.
  • pynqctrl Using a Digilent Inc PYNQ-Z1 or TUL PYNQ-Z2 as control board and either the FOBOS Shield or an oscilloscope for measurements.
  • ip-repo Modules used by either control board.

• dut VHDL sources for FOBOS wrapper and pin assignments to prepare a DUT for instantiating a target algorithm.
  • fpga_wrapper Source code of the FOBOS wrapper common to all FPGA targets and the constraint files for the supported DUTs.
  • example_cores Contains implementations of example algorithms required for the tutorials.

• hardware Printed Circuit Board design files for FOBOS boards. Requires KiCad.
  • fobos-shield FOBOS Shield is a data aqcuisition and benchmarking boad that can be attached to the PYNQ-Z1 board.
  • fobos-shield-Z2 FOBOS Shield is a data aqcuisition and benchmarking boad that can be attached to the PYNQ-Z2 board.
  • fobos-mtc FOBOS Multi Target Connector allows simple connection of DUT boards with PMOD connectors to the FOBOS Shield.
  • fobos-dut Contains folders for each FOBOS DUT.

• software FOBOS is controlled by a series of Python 3 scripts.

  • foboslib contains all common FOBOS functions.
  • notebooks contains Jupyter notebooks that run within Jupyter Lab on the SCA workstation.
  • lwc_tools contains tools to make the GMU LWC Hardware API compatible with FOBOS.
  • firmware contains software that runs on FOBOS Control.

• docs Contains the sources for the Sphinx based documentation of FOBOS and the makefile to compile it. You can also read it at https://cryptography.gmu.edu/documentation/fobos3/index.html

Copyright 2024 Cryptographic Engineering Research Group (CERG)

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