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README.rst

CFFI-based Argon2 Bindings for Python

Documentation Status CI Status Test Coverage IRC Code style: black

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("s3kr3tp4ssw0rd")
>>> hash  # doctest: +SKIP
'$argon2id$v=19$m=102400,t=2,p=8$tSm+JOWigOgPZx/g44K5fQ$WDyus6py50bVFIPkjA28lQ'
>>> ph.verify(hash, "s3kr3tp4ssw0rd")
True
>>> ph.check_needs_rehash(hash)
False
>>> ph.verify(hash, "t0t411ywr0ng")
Traceback (most recent call last):
  ...
argon2.exceptions.VerifyMismatchError: The password does not match the supplied hash

argon2-cffi’s documentation lives at Read the Docs, the code on GitHub. It’s rigorously tested on Python 2.7, 3.5+, and PyPy.

It implements Argon2 version 1.3, as described in Argon2: the memory-hard function for password hashing and other applications.

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