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?? ..
?? __init__.py(1020 B)
?? __pycache__
?? dh.py(5.53 KB)
?? dsa.py(7.01 KB)
?? ec.py(13.68 KB)
?? ed25519.py(2.34 KB)
?? ed448.py(2.27 KB)
?? padding.py(2.2 KB)
?? rsa.py(10.25 KB)
?? utils.py(1.33 KB)
?? x25519.py(2.22 KB)
?? x448.py(2.2 KB)

Editing: x25519.py

# 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 absolute_import, division, print_function

import abc

import six

from cryptography.exceptions import UnsupportedAlgorithm, _Reasons

@six.add_metaclass(abc.ABCMeta)
class X25519PublicKey(object):
    @classmethod
    def from_public_bytes(cls, data):
        from cryptography.hazmat.backends.openssl.backend import backend

if not backend.x25519_supported():
            raise UnsupportedAlgorithm(
                "X25519 is not supported by this version of OpenSSL.",
                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
            )

return backend.x25519_load_public_bytes(data)

@abc.abstractmethod
    def public_bytes(self, encoding, format):
        """
        The serialized bytes of the public key.
        """

@six.add_metaclass(abc.ABCMeta)
class X25519PrivateKey(object):
    @classmethod
    def generate(cls):
        from cryptography.hazmat.backends.openssl.backend import backend

if not backend.x25519_supported():
            raise UnsupportedAlgorithm(
                "X25519 is not supported by this version of OpenSSL.",
                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
            )
        return backend.x25519_generate_key()

@classmethod
    def from_private_bytes(cls, data):
        from cryptography.hazmat.backends.openssl.backend import backend

return backend.x25519_load_private_bytes(data)

@abc.abstractmethod
    def public_key(self):
        """
        The serialized bytes of the public key.
        """

@abc.abstractmethod
    def private_bytes(self, encoding, format, encryption_algorithm):
        """
        The serialized bytes of the private key.
        """

@abc.abstractmethod
    def exchange(self, peer_public_key):
        """
        Performs a key exchange operation using the provided peer's public key.
        """

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Editing: x25519.py

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