- update to 3.0
- refreshed disable-uneven-sizes-tests.patch and skip_openssl_memleak_test.patch
* Removed support for passing an Extension instance
to from_issuer_subject_key_identifier(), as per our deprecation policy.
* Support for LibreSSL 2.7.x, 2.8.x, and 2.9.0 has been removed
* Dropped support for macOS 10.9, macOS users must upgrade to 10.10 or newer.
* RSA generate_private_key() no longer accepts public_exponent values except
65537 and 3 (the latter for legacy purposes).
* X.509 certificate parsing now enforces that the version field contains
a valid value, rather than deferring this check until version is accessed.
* Deprecated support for Python 2
* Added support for OpenSSH serialization format for ec, ed25519, rsa and dsa
private keys: load_ssh_private_key() for loading and OpenSSH for writing.
* Added support for OpenSSH certificates to load_ssh_public_key().
* Added encrypt_at_time() and decrypt_at_time() to Fernet.
* Added support for the SubjectInformationAccess X.509 extension.
* Added support for parsing SignedCertificateTimestamps in OCSP responses.
* Added support for parsing attributes in certificate signing requests via get_attribute_for_oid().
* Added support for encoding attributes in certificate signing requests via add_attribute().
* On OpenSSL 1.1.1d and higher cryptography now uses OpenSSL’s built-in CSPRNG
instead of its own OS random engine because these versions of OpenSSL properly reseed on fork.
* Added initial support for creating PKCS12 files with serialize_key_and_certificates().