argon2-cffi: Argon2 for Python#

Release 21.3.1.dev71 (What’s new?)

Argon2 won the Password Hashing Competition and argon2-cffi is the simplest way to use it in Python and PyPy:

>>> from argon2 import PasswordHasher
>>> ph = PasswordHasher()
>>> hash = ph.hash("correct horse battery staple")
>>> hash  
>>> ph.verify(hash, "correct horse battery staple")
>>> ph.check_needs_rehash(hash)
>>> ph.verify(hash, "Tr0ub4dor&3")
Traceback (most recent call last):
argon2.exceptions.VerifyMismatchError: The password does not match the supplied hash

User’s Guide#

Project Information#

The low-level Argon2 CFFI bindings are maintained in the separate argon2-cffi-bindings project.


argon2-cffi is maintained by Hynek Schlawack.

The development is kindly supported by my employer Variomedia AG, argon2-cffi Tidelift subscribers, and all my amazing GitHub Sponsors.

A full list of contributors can be found in GitHub’s overview.

argon2-cffi for Enterprise#

Available as part of the Tidelift Subscription.

The maintainers of argon2-cffi and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open-source packages you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact packages you use. Learn more.

Indices and tables#