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Very fast implementation of pbkdf2.

Project Description

A pbkdf2 implementation for python using ctypes.

This module implements pbkdf2 for Python using C libraries available on the system (OpenSSL-1+ or CommonCrypto).

Note: This module is intended as a plugin replacement of ( by Armin Ronacher. There is no need to compile it so it should be usable on any system where OpenSSL 1.0.0+ or CommonCrypto (OS X) is installed.


The above stlib based implementation, although excellent, was worsening web2py ( performance much more than needed for doing just password hashing. After pondering different options, it was considered that there would have been a good chance that a system with python shipping hashlib module, could also have OpenSSL installed for dependency reasons. The result is that using this module PKCS5 PBKDF2 hashing can be more than 20x times faster than using Armin’s stdlib implementation.

Copyright :copyright: 2013: Michele Comitini License LGPLv3


  • v0.99.4: better support for python2.5. Comply to PATH on Windows. Better OS detection on OS X.
  • v0.99.3: fixed main(). Prepended “_” to internal functions.
  • v0.99.2: added support for python3
  • preparing 0.99.1 to fix problems with pypi
  • added and prepared for distutils.
  • Update


  • fixed OS X compatibility, should work also on iOS. Added arg type checks and conversions.
  • added support for common crypto hence hopefully OS X
  • missing () around exceptions
  • pep8
  • now uses ctypes magic to find library
  • added module
  • added module
  • Update
  • Initial commit

Release History

This version
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