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文件: /usr/lib64/python2.7/site-packages/cryptography/hazmat/primitives/asymmetric/__init__.py
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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 import abc import six @six.add_metaclass(abc.ABCMeta) class AsymmetricSignatureContext(object): @abc.abstractmethod def update(self, data): """ Processes the provided bytes and returns nothing. """ @abc.abstractmethod def finalize(self): """ Returns the signature as bytes. """ @six.add_metaclass(abc.ABCMeta) class AsymmetricVerificationContext(object): @abc.abstractmethod def update(self, data): """ Processes the provided bytes and returns nothing. """ @abc.abstractmethod def verify(self): """ Raises an exception if the bytes provided to update do not match the signature or the signature does not match the public key. """
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