affine backend backends bcrypt Backends Blowfish boolean Botan Changelog ciphertext committer committers conda crypto cryptographic cryptographically Debian Diffie decrypt decrypted decrypting deserialize deserialized Diffie Docstrings Django Encodings fernet Fernet hazmat indistinguishability initialisms interoperable introspectability invariants iOS iterable Koblitz Lange metadata multi naïve namespace namespaces Nonces online paddings pickleable plaintext pre preprocessor preprocessors pseudorandom pyOpenSSL relicensed Schneier scrypt Serializers serializer Solaris Tanja testability Ubuntu unencrypted unpadded unpadding Verisign wildcard Xcode