pyconcrete

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

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Version

0.9.x Beta

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

Usage

• get the pyconcrete source code

$ git clone <pyconcrete repo> <pyconcre dir>

• install pyconcrete

$ python setup.py install

• 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

• convert your script 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 script

  • recommendation project layout
  • python execute main script as *.pye will cause exception, so main script can't be encrypted

main.py  # your main scirpt, must can't be encrypted
src/*.pye  # your libs

Usage (pyconcrete as lib)

• install pyconcrete as lib

$ python setup.py install \
  --install-lib=<your project path> \
  --install-scripts=<where you want to execute pyconcrete-admin.py>

• import pyconcrete in your main script
  • recommendation project layout

main.py       # import pyconcrete and your lib
pyconcrete/*  # put pyconcrete lib in 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