forked from STI/Astroport.ONE
25 lines
790 B
Python
25 lines
790 B
Python
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# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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from __future__ import annotations
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from cryptography.hazmat.bindings._rust import asn1
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from cryptography.hazmat.primitives import hashes
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decode_dss_signature = asn1.decode_dss_signature
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encode_dss_signature = asn1.encode_dss_signature
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class Prehashed:
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def __init__(self, algorithm: hashes.HashAlgorithm):
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if not isinstance(algorithm, hashes.HashAlgorithm):
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raise TypeError("Expected instance of HashAlgorithm.")
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self._algorithm = algorithm
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self._digest_size = algorithm.digest_size
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@property
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def digest_size(self) -> int:
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return self._digest_size
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