Try alternative (pure?) python crypto libraries

[clach04]

• https://github.com/Legrandin/pycryptodome - used and a requirement
  • https://pypi.org/project/pycryptodomex/
  • https://github.com/pycrypto/pycrypto - old, unmaintained
• pure python
  • pyaes is the obvious one to try - pure python so not the fastest
  • https://github.com/boppreh/aes
  • https://github.com/Z-40/MicroAES
  • https://github.com/clach04/puren_tonbo/blob/main/puren_tonbo/mzipaes.py - wrapper on top of C implementations using ctypes (etc.)
• oscrypto (nee; pycryptoenv) is a pure wrapper around native implementations https://github.com/wbond/oscrypto (at least for CPython and PyPy, no Jython support as far as I can tell in 2023)
• https://github.com/pyca/cryptography
• https://github.com/naufraghi/tinyaes-py - Cython