ERP5Security/ERP5KeyAuthPlugin: replace pycrypto by cryptography
pycrypto is unmaintained and the python3 version no longer work with buildout 3 (it uses a tricky way to run 2to3 in setup.py that no longer happens with pip based buildout3)
pycrypto is unmaintained and the python3 version no longer work with buildout 3 (it uses a tricky way to run 2to3 in setup.py that no longer happens with pip based buildout3)