- Update to 0.18.0
* New features:
+ Support for EdDSA (Ed25519, Ed448) signature creation and
verification.
+ Support for Ed25519 and Ed448 in PKCS#8 and public key files.
+ Support for point precomputation for EdDSA.
* New API:
+ CurveEdTw class to represent the Twisted Edwards curve
parameters.
+ PointEdwards class to represent points on Twisted Edwards
curve and provide point arithmetic on it.
+ curve_by_name in curves module to get a Curve object by
providing curve name.
* Bug fix:
+ Accept private EdDSA keys that include public key in the
ASN.1 structure.
+ Fix incompatibility with Python 3.3 in handling of
memoryviews of empty strings.
+ Make the VerifyingKey encoded with explicit parameters use
the same kind of point encoding for public key and curve
generator.
+ Better handling of malformed curve parameters (as in
CVE-2022-0778); make python-ecdsa raise MalformedPointError
instead of AssertionError.