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9 statements  

1# This file is dual licensed under the terms of the Apache License, Version 

2# 2.0, and the BSD License. See the LICENSE file in the root of this repository 

3# for complete details. 

4 

5from __future__ import annotations 

6 

7from cryptography.hazmat.bindings._rust import openssl as rust_openssl 

8from cryptography.hazmat.primitives.kdf import KeyDerivationFunction 

9 

10ConcatKDFHash = rust_openssl.kdf.ConcatKDFHash 

11ConcatKDFHMAC = rust_openssl.kdf.ConcatKDFHMAC 

12 

13KeyDerivationFunction.register(ConcatKDFHash) 

14KeyDerivationFunction.register(ConcatKDFHMAC) 

15 

16__all__ = ["ConcatKDFHMAC", "ConcatKDFHash"]