---
id: cryptography
version: "50.0.0"
license: Apache-2.0 OR BSD-3-Clause
license_treatment: permissive
maintenance: active
---

# cryptography — cryptography is a package which provides cryptographic recipes and primitives to Python developers.

License: permissive · Maintenance: active · Popularity: top 100 on PyPI

## Install

pip install cryptography
uv add cryptography
poetry add cryptography

## Description

pyca/cryptography
=================

.. image:: https://img.shields.io/pypi/v/cryptography.svg
    :target: https://pypi.org/project/cryptography/
    :alt: Latest Version

.. image:: https://readthedocs.org/projects/cryptography/badge/?version=latest
    :target: https://cryptography.io
    :alt: Latest Docs

.. image:: https://github.com/pyca/cryptography/actions/workflows/ci.yml/badge.svg
    :target: https://github.com/pyca/cryptography/actions/workflows/ci.yml?query=branch%3Amain

``cryptography`` is a package which provides cryptographic recipes and
primitives to Python developers. Our goal is for it to be your "cryptographic
standard library". It supports Python 3.9+ and PyPy3 7.3.11+.

``cryptography`` includes both high level recipes and low level interfaces to
common cryptographic algorithms such as symmetric ciphers, message digests, and
key derivation functions. For example, to encrypt something with
``cryptography``'s high level symmetric encryption recipe:

.. code-block:: pycon

    >>> from cryptography.fernet import Fernet
    >>> # Put this somewhere safe!
    >>> key = Fernet.generate_key()
    >>> f = Fernet(key)
    >>> token = f.encrypt(b"A really secret...

## AI interpretation — verify before relying

cryptography provides cryptographic recipes and primitives—symmetric ciphers, message digests, key derivation, and high-level encryption interfaces—for Python developers to build secure applications.

Verdict: cryptography is a production-stable, top-100 PyPI package with active maintenance, no known vulnerabilities, and permissive licensing. Medium install friction is offset by comprehensive wheel distribution and strong community backing; suitable for any application requiring cryptographic operations.

[View on SkillFed](https://skillfed.io/packages/cryptography) · [View on PyPI](https://pypi.org/project/cryptography/)