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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 annotations
- from cryptography.hazmat.bindings._rust import asn1
- from cryptography.hazmat.primitives import hashes
- decode_dss_signature = asn1.decode_dss_signature
- encode_dss_signature = asn1.encode_dss_signature
- class Prehashed:
- def __init__(self, algorithm: hashes.HashAlgorithm):
- if not isinstance(algorithm, hashes.HashAlgorithm):
- raise TypeError("Expected instance of HashAlgorithm.")
- self._algorithm = algorithm
- self._digest_size = algorithm.digest_size
- @property
- def digest_size(self) -> int:
- return self._digest_size
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