---
id: argon2-cffi-bindings
version: "25.1.0"
license: MIT
license_treatment: permissive
maintenance: active
---

# argon2-cffi-bindings — Low-level CFFI bindings for Argon2

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install argon2-cffi-bindings
uv add argon2-cffi-bindings
poetry add argon2-cffi-bindings

## Description

# Low-level Python CFFI Bindings for Argon2

[![License: MIT](https://img.shields.io/badge/license-MIT-C06524)](https://github.com/hynek/argon2-cffi-bindings/blob/main/LICENSE)
[![PyPI version](https://img.shields.io/pypi/v/argon2-cffi-bindings)](https://pypi.org/project/argon2-cffi-bindings/)
[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/argon2-cffi-bindings.svg)](https://pypi.org/project/argon2-cffi-bindings)

*argon2-cffi-bindings* provides low-level [CFFI](https://cffi.readthedocs.io/) bindings to the official implementation of the [Argon2] password hashing algorithm.

<!-- [[[cog
# Extract commit ID; refresh using `tox -e cog-render`
import subprocess
out = subprocess.check_output(["git", "submodule"], text=True)
id = out.strip().split(" ", 1)[0]
link = f'[**`{id[:7]}`**](https://github.com/P-H-C/phc-winner-argon2/commit/{id})'
print(f"The currently vendored Argon2 commit ID is {link}.")
]]] -->
The currently vendored Argon2 commit ID is [**`f57e61e`**](https://github.com/P-H-C/phc-winner-argon2/commit/f57e61e19229e23c4445b85494dbf7c07de721cb).
<!-- [[[end]]] -->

> [!NOTE]
> If you want to hash passwords in an application, this package is **not** for...

## AI interpretation — verify before relying

Provides low-level CFFI bindings to the official Argon2 password hashing algorithm, intended as a foundation for higher-level libraries rather than direct application use.

Verdict: A stable, actively maintained low-level binding library suitable for packages that need direct Argon2 access without the overhead of higher-level abstractions. No known vulnerabilities, permissive MIT license, and broad platform/Python version coverage make it a reliable foundation dependency. Not intended for direct application use—consider argon2-cffi instead if you need password hashing abstractions.

[View on SkillFed](https://skillfed.io/packages/argon2-cffi-bindings) · [View on PyPI](https://pypi.org/project/argon2-cffi-bindings/)