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- 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/workflows/CI/badge.svg?branch=main
- :target: https://github.com/pyca/cryptography/actions?query=workflow%3ACI+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 3.7+ and PyPy3 7.3.10+.
- ``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 message. Not for prying eyes.")
- >>> token
- b'...'
- >>> f.decrypt(token)
- b'A really secret message. Not for prying eyes.'
- You can find more information in the `documentation`_.
- You can install ``cryptography`` with:
- .. code-block:: console
- $ pip install cryptography
- For full details see `the installation documentation`_.
- Discussion
- ~~~~~~~~~~
- If you run into bugs, you can file them in our `issue tracker`_.
- We maintain a `cryptography-dev`_ mailing list for development discussion.
- You can also join ``#pyca`` on ``irc.libera.chat`` to ask questions or get
- involved.
- Security
- ~~~~~~~~
- Need to report a security issue? Please consult our `security reporting`_
- documentation.
- .. _`documentation`: https://cryptography.io/
- .. _`the installation documentation`: https://cryptography.io/en/latest/installation/
- .. _`issue tracker`: https://github.com/pyca/cryptography/issues
- .. _`cryptography-dev`: https://mail.python.org/mailman/listinfo/cryptography-dev
- .. _`security reporting`: https://cryptography.io/en/latest/security/
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