PyCA cryptography 43.0.3 has been released to PyPI. cryptography includes both high level recipes and low level interfaces to common cryptographic algorithms such as symmetric ciphers, asymmetric algorithms, message digests, X.509, key derivation functions, and much more. We support Python 3.7+, and PyPy3 7.3.10+. Changelog (https://cryptography.io/en/latest/changelog/#v43-0-3): * Fixed compilation when using LibreSSL 4.0.0. (Astute readers will note that this is listed as a change in 43.0.2, that release was aborted prior to uploading to PyPI due to twine check failures.) Alex -- All that is necessary for evil to succeed is for good people to do nothing.