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__init__.py
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dh.py
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Editing: dh.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. from __future__ import annotations import abc from cryptography.hazmat.bindings._rust import openssl as rust_openssl from cryptography.hazmat.primitives import _serialization generate_parameters = rust_openssl.dh.generate_parameters DHPrivateNumbers = rust_openssl.dh.DHPrivateNumbers DHPublicNumbers = rust_openssl.dh.DHPublicNumbers DHParameterNumbers = rust_openssl.dh.DHParameterNumbers class DHParameters(metaclass=abc.ABCMeta): @abc.abstractmethod def generate_private_key(self) -> DHPrivateKey: """ Generates and returns a DHPrivateKey. """ @abc.abstractmethod def parameter_bytes( self, encoding: _serialization.Encoding, format: _serialization.ParameterFormat, ) -> bytes: """ Returns the parameters serialized as bytes. """ @abc.abstractmethod def parameter_numbers(self) -> DHParameterNumbers: """ Returns a DHParameterNumbers. """ DHParametersWithSerialization = DHParameters DHParameters.register(rust_openssl.dh.DHParameters) class DHPublicKey(metaclass=abc.ABCMeta): @property @abc.abstractmethod def key_size(self) -> int: """ The bit length of the prime modulus. """ @abc.abstractmethod def parameters(self) -> DHParameters: """ The DHParameters object associated with this public key. """ @abc.abstractmethod def public_numbers(self) -> DHPublicNumbers: """ Returns a DHPublicNumbers. """ @abc.abstractmethod def public_bytes( self, encoding: _serialization.Encoding, format: _serialization.PublicFormat, ) -> bytes: """ Returns the key serialized as bytes. """ @abc.abstractmethod def __eq__(self, other: object) -> bool: """ Checks equality. """ DHPublicKeyWithSerialization = DHPublicKey DHPublicKey.register(rust_openssl.dh.DHPublicKey) class DHPrivateKey(metaclass=abc.ABCMeta): @property @abc.abstractmethod def key_size(self) -> int: """ The bit length of the prime modulus. """ @abc.abstractmethod def public_key(self) -> DHPublicKey: """ The DHPublicKey associated with this private key. """ @abc.abstractmethod def parameters(self) -> DHParameters: """ The DHParameters object associated with this private key. """ @abc.abstractmethod def exchange(self, peer_public_key: DHPublicKey) -> bytes: """ Given peer's DHPublicKey, carry out the key exchange and return shared key as bytes. """ @abc.abstractmethod def private_numbers(self) -> DHPrivateNumbers: """ Returns a DHPrivateNumbers. """ @abc.abstractmethod def private_bytes( self, encoding: _serialization.Encoding, format: _serialization.PrivateFormat, encryption_algorithm: _serialization.KeySerializationEncryption, ) -> bytes: """ Returns the key serialized as bytes. """ DHPrivateKeyWithSerialization = DHPrivateKey DHPrivateKey.register(rust_openssl.dh.DHPrivateKey)