cryptography

The cryptography library (pyca/cryptography) provides cryptographic recipes and primitives to Python developers, aiming to be a 'cryptographic standard library'. It offers both high-level recipes (e.g., Fernet symmetric encryption) and low-level hazmat (hazardous materials) primitives covering symmetric ciphers, asymmetric algorithms (RSA, EC, DSA), message digests, KDFs, X.509, and more. Current stable version is 46.0.6 (released 2026-03-25). The project releases frequently—typically multiple times per major version cycle—with major versions arriving several times per year.