]j PddlmZddlZddlmZGddej Zy)) annotationsN)Bufferc~eZdZejddZejddZejddZy)KeyDerivationFunctioncy)zo Deterministically generates and returns a new key based on the existing key material. N)self key_materials U/root/env/lib/python3.12/site-packages/cryptography/hazmat/primitives/kdf/__init__.pyderivezKeyDerivationFunction.derive cy)z Deterministically generates a new key based on the existing key material and stores it in the provided buffer. Nr)r r buffers r derive_intoz!KeyDerivationFunction.derive_intor rcy)z Checks whether the key generated by the key material matches the expected derived key. Raises an exception if they do not match. Nr)r r expected_keys r verifyzKeyDerivationFunction.verifyr rN)r bytesreturnr)r rrrrNone)r rrrrr)__name__ __module__ __qualname__abcabstractmethodr rrrrr rr sN        rr) metaclass) __future__rrcryptography.utilsrABCMetarrrr r!s  # % ckk r