Chepy

Chepy is a python library with a handy cli that is aimed to mirror some of the capabilities of CyberChef. A reasonable amount of effort was put behind Chepy to make it compatible to the various functionalities that CyberChef offers, all in a pure Pythonic manner. There are some key advantages and disadvantages that Chepy has over Cyberchef. The Cyberchef concept of stacking_ different modules is kept alive in Chepy.

There is still a long way to go for Chepy as it does not offer every single ability of Cyberchef.

Feel free to give the project a ⭐️!

Docs

Refer to the docs for full usage information

Example

For all usage and examples, see the docs.

Chepy has a stacking mechanism similar to Cyberchef. For example, this in Cyberchef:

This is equivalent to

from chepy import Chepy
file_path = "/tmp/demo/encoding"
print(     Chepy(file_path)     .load_file()     .reverse()     .rot_13()     .from_base64()     .from_base32()     .hexdumptostr()     .o )

Chepy vs Cyberchef

Advantages

• Chepy is pure python with a supporting and accessible python api
• Chepy has a CLI
• Chepy CLI has full autocompletion.
• Supports pe, elf, and other various file format specific parsing.
• Extendable via plugins
• Infinitely scalable as it can leverage the full Python library.
• Chepy can interface with the full Cyberchef web app to a certain degree. It is easy to move from Chepy to Cyberchef if need be.
• The Chepy python library is significantly faster than the Cyberchef Node library.
• Works with HTTP/S requests without CORS issues.
• magic support via the Chepy ML plugin.

Disadvantages

• Chepy does not offer every single thing that Cyberchef does

Installation

Chepy can be installed in a few ways.

Pypi

pip3 install chepy
optionally with extra requirements
pip3 install chepy[extras]

Git

git clone --recursive https://github.com/securisec/chepy.git
cd chepy
pip3 install -e .
I use -e here so that if I update later with git pull, I dont have it install it again (unless dependencies have changed)

Standalone binary

One can build Chepy to be a standalone binary also. This includes packaging all the dependencies together.

git clone https://github.com/securisec/chepy.git
cd chepy
pip install .
pip install pyinstaller
pyinstaller cli.py --name chepy --onefile

The binary will be in the dist/ folder.

Plugins

Check here for plugins docs

Used by

Remnux linux

.. toctree::
   :maxdepth: 3
   :caption: Contents:
usage.md    examples.md    cli.rst    chepy.md    core.md    modules.rst    extras.rst    plugins.md    pullrequest.md    config.md    faq.md
Indices and tables ==================
:ref:genindex
:ref:modindex
:ref:search