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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.
from __future__ import absolute_import, division, print_function
class _Reasons(object):
BACKEND_MISSING_INTERFACE = object()
UNSUPPORTED_HASH = object()
UNSUPPORTED_CIPHER = object()
UNSUPPORTED_PADDING = object()
UNSUPPORTED_MGF = object()
UNSUPPORTED_PUBLIC_KEY_ALGORITHM = object()
UNSUPPORTED_ELLIPTIC_CURVE = object()
UNSUPPORTED_SERIALIZATION = object()
UNSUPPORTED_X509 = object()
class UnsupportedAlgorithm(Exception):
def __init__(self, message, reason=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):
pass
class InvalidKey(Exception):
pass
class InvalidToken(Exception):
pass
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