71 lines
2.3 KiB
Python
71 lines
2.3 KiB
Python
# Copyright (c) 2017-2023 by Ron Frederick <ronf@timeheart.net> and others.
|
|
#
|
|
# This program and the accompanying materials are made available under
|
|
# the terms of the Eclipse Public License v2.0 which accompanies this
|
|
# distribution and is available at:
|
|
#
|
|
# http://www.eclipse.org/legal/epl-2.0/
|
|
#
|
|
# This program may also be made available under the following secondary
|
|
# licenses when the conditions for such availability set forth in the
|
|
# Eclipse Public License v2.0 are satisfied:
|
|
#
|
|
# GNU General Public License, Version 2.0, or any later versions of
|
|
# that license
|
|
#
|
|
# SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
|
|
#
|
|
# Contributors:
|
|
# Ron Frederick - initial implementation, API, and documentation
|
|
|
|
"""Miscellaneous PyCA utility classes and functions"""
|
|
|
|
from typing import Callable, Mapping, Union
|
|
|
|
from cryptography.hazmat.primitives.asymmetric import dsa, ec, rsa
|
|
from cryptography.hazmat.primitives.asymmetric import ed25519, ed448
|
|
from cryptography.hazmat.primitives.hashes import HashAlgorithm
|
|
from cryptography.hazmat.primitives.hashes import MD5, SHA1, SHA224
|
|
from cryptography.hazmat.primitives.hashes import SHA256, SHA384, SHA512
|
|
|
|
|
|
PyCAPrivateKey = Union[dsa.DSAPrivateKey, rsa.RSAPrivateKey,
|
|
ec.EllipticCurvePrivateKey,
|
|
ed25519.Ed25519PrivateKey, ed448.Ed448PrivateKey]
|
|
|
|
PyCAPublicKey = Union[dsa.DSAPublicKey, rsa.RSAPublicKey,
|
|
ec.EllipticCurvePublicKey,
|
|
ed25519.Ed25519PublicKey, ed448.Ed448PublicKey]
|
|
|
|
PyCAKey = Union[PyCAPrivateKey, PyCAPublicKey]
|
|
|
|
|
|
hashes: Mapping[str, Callable[[], HashAlgorithm]] = {
|
|
str(h.name): h for h in (MD5, SHA1, SHA224, SHA256, SHA384, SHA512)
|
|
}
|
|
|
|
|
|
class CryptoKey:
|
|
"""Base class for PyCA private/public keys"""
|
|
|
|
def __init__(self, pyca_key: PyCAKey):
|
|
self._pyca_key = pyca_key
|
|
|
|
@property
|
|
def pyca_key(self) -> PyCAKey:
|
|
"""Return the PyCA object associated with this key"""
|
|
|
|
return self._pyca_key
|
|
|
|
def sign(self, data: bytes, hash_name: str = '') -> bytes:
|
|
"""Sign a block of data"""
|
|
|
|
# pylint: disable=no-self-use
|
|
raise RuntimeError # pragma: no cover
|
|
|
|
def verify(self, data: bytes, sig: bytes, hash_name: str = '') -> bool:
|
|
"""Verify the signature on a block of data"""
|
|
|
|
# pylint: disable=no-self-use
|
|
raise RuntimeError # pragma: no cover
|