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/opt/imunify360/venv/lib/python3.11/site-packages/cryptography/hazmat/primitives/asymmetric/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)

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Name	Size	Perms	Modified	Actions
__pycache__ DIR	-	drwxr-xr-x	2026-05-27 11:04:31	Edit Download recursive recursive
dh.py	3.34 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
dsa.py	3.85 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
ec.py	10.18 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
ed448.py	3.38 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
ed25519.py	3.34 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
padding.py	2.82 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
rsa.py	7.46 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
types.py	2.93 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
utils.py	790 B	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
x448.py	3.29 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
x25519.py	3.26 KB	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive
__init__.py	180 B	lrw-r--r--	2026-04-14 09:45:17	Edit Download recursive recursive

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