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usr
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lib64
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python3.9
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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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Editing: _cipheralgorithm.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. import abc import typing # This exists to break an import cycle. It is normally accessible from the # ciphers module. class CipherAlgorithm(metaclass=abc.ABCMeta): @abc.abstractproperty def name(self) -> str: """ A string naming this mode (e.g. "AES", "Camellia"). """ @abc.abstractproperty def key_sizes(self) -> typing.FrozenSet[int]: """ Valid key sizes for this algorithm in bits """ @abc.abstractproperty def key_size(self) -> int: """ The size of the key being used as an integer in bits (e.g. 128, 256). """ class BlockCipherAlgorithm(metaclass=abc.ABCMeta): @abc.abstractproperty def block_size(self) -> int: """ The size of a block as an integer in bits (e.g. 64, 128). """
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