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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
import typing
from cryptography import utils
if typing.TYPE_CHECKING:
from cryptography.hazmat.bindings.openssl.binding import (
_OpenSSLErrorWithText,
)
class _Reasons(utils.Enum):
BACKEND_MISSING_INTERFACE = 0
UNSUPPORTED_HASH = 1
UNSUPPORTED_CIPHER = 2
UNSUPPORTED_PADDING = 3
UNSUPPORTED_MGF = 4
UNSUPPORTED_PUBLIC_KEY_ALGORITHM = 5
UNSUPPORTED_ELLIPTIC_CURVE = 6
UNSUPPORTED_SERIALIZATION = 7
UNSUPPORTED_X509 = 8
UNSUPPORTED_EXCHANGE_ALGORITHM = 9
UNSUPPORTED_DIFFIE_HELLMAN = 10
UNSUPPORTED_MAC = 11
class UnsupportedAlgorithm(Exception):
def __init__(
self, message: str, reason: typing.Optional[_Reasons] = None
) -> None:
super(UnsupportedAlgorithm, self).__init__(message)
self._reason = reason
class AlreadyFinalized(Exception):
pass
class AlreadyUpdated(Exception):
pass
class NotYetFinalized(Exception):
pass
class InvalidTag(Exception):
pass
class InvalidSignature(Exception):
pass
class InternalError(Exception):
def __init__(
self, msg: str, err_code: typing.List["_OpenSSLErrorWithText"]
) -> None:
super(InternalError, self).__init__(msg)
self.err_code = err_code
class InvalidKey(Exception):
pass
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