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:
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proc
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self
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root
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usr
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lib64
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python3.6
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site-packages
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cryptography
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hazmat
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primitives
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kdf
/
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files >> //proc/self/root/usr/lib64/python3.6/site-packages/cryptography/hazmat/primitives/kdf/__init__.py
# 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 KeyDerivationFunction(object): @abc.abstractmethod def derive(self, key_material): """ Deterministically generates and returns a new key based on the existing key material. """ @abc.abstractmethod def verify(self, key_material, expected_key): """ Checks whether the key generated by the key material matches the expected derived key. Raises an exception if they do not match. """
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