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Protect your python script, encrypt .pyc to .pye and decrypt when import it


Protect python script work flow

  • your_script.py import pyconcrete

  • pyconcrete will hook import module

  • when your script do import MODULE, pyconcrete import hook will try to find MODULE.pye first and then decrypt MODULE.pye via _pyconcrete.pyd and execute decrypted data (as .pyc content)

  • encrypt & decrypt secret key record in _pyconcrete.pyd (like DLL or SO) the secret key would be hide in binary code, can’t see it directly in HEX view

Encryption

  • only support AES 128 bit now

  • encrypt & decrypt by library OpenAES

Installation

  • need to input your passphrase create secret key for encrypt python script.

  • same passphrase will generate the same secret key

  • installation will add pyconcrete.pth into your site-packages for execute sitecustomize.py under pyconcrete which will automatic import pyconcrete

pip

$ pip install pyconcrete

If you only execute ``pip install`` will not display any prompt(via
stdout) from pyconcrete. Installation will be ``blocked`` and
``waiting for user input passphrase twice``. You must input
passphrase for installation continuously.
$ pip install pyconcrete --egg --install-option="--passphrase=<your passphrase>"

pyconcrete installed as egg, if you want to uninstall pyconcrete
will need to manually delete ``pyconcrete.pth``.

source

  • get the pyconcrete source code

    $ git clone <pyconcrete repo> <pyconcre dir>
  • install pyconcrete

    $ python setup.py install

Usage

Full encrypted

  • convert all of your .py to *.pye

    $ pyconcrete-admin.py compile --source=<your py script>  --pye
    $ pyconcrete-admin.py compile --source=<your py module dir> --pye
  • remove *.py *.pyc or copy *.pye to other folder

  • main.py encrypted as main.pye, it can’t be executed by normal python. You must use pyconcrete to process the main.pye script. pyconcrete(exe) will be installed in your system path (ex: /usr/local/bin)

pyconcrete main.pye
src/*.pye  # your libs

Partial encrypted (pyconcrete as lib)

  • download pyconcrete source and install by setup.py

    $ python setup.py install \
      --install-lib=<your project path> \
      --install-scripts=<where you want to execute pyconcrete-admin.py and pyconcrete(exe)>
  • import pyconcrete in your main script

  • recommendation project layout

    main.py       # import pyconcrete and your lib
    pyconcrete/*  # put pyconcrete lib in project root, keep it as original files
    src/*.pye     # your libs

Test

  • test all case

    $ ./pyconcrete-admin.py test
  • test all case, setup TEST_PYE_PERFORMANCE_COUNT env to reduce testing time

    $ TEST_PYE_PERFORMANCE_COUNT=1 ./pyconcrete-admin.py test

Example

Django with pyconcrete

Building on Windows

Python 2.7 - Visual Studio 2008

https://www.microsoft.com/en-us/download/details.aspx?id=44266

  • Open VS2008 Command Prompt

  • set DISTUTILS_USE_SDK=1

  • set SET MSSdk=1

  • create distutils.cfg and put inside

    [build]
    compiler=msvc

Python 3.5, 3.6 - Visual Studio 2015

MSVC 2015 Build Tools

Document

  • make sure setuptools >= 24.0

    python -c 'import setuptools; print(setuptools.__version__)'
  • Open VS2015 Build Tools Command Prompt

  • set DISTUTILS_USE_SDK=1

  • setenv /x64 /release or setenv /x86 /release

Reference

https://matthew-brett.github.io/pydagogue/python_msvc.html https://github.com/cython/cython/wiki/CythonExtensionsOnWindows

Announcement

pyconcrete is an experimental project, there is always a way to decrypt .pye files, but pyconcrete just make it harder.

Release files for pyconcrete 0.11.3

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for pyconcrete 0.11.3
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pyconcrete-0.11.3.tar.gz 44.4 kB Details

Release files / pyconcrete-0.11.3.tar.gz

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1.3.0

1 release file

1.2.0

1 release file

1.1.0

1 release file

1.0.0

1 release file

0.15.2

1 release file

0.15.1

1 release file

0.14.1

1 release file

0.12.1

1 release file

This release

0.11.3 This release

1 release file

0.11.1

1 release file

0.11.0

1 release file

0.10.2

1 release file

0.10.1

1 release file

0.10.0

1 release file

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