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File Name : ed25519.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

_ED25519_KEY_SIZE = 32
_ED25519_SIG_SIZE = 64

@six.add_metaclass(abc.ABCMeta)
class Ed25519PublicKey(object):
    @classmethod
    def from_public_bytes(cls, data):
        from cryptography.hazmat.backends.openssl.backend import backend

if not backend.ed25519_supported():
            raise UnsupportedAlgorithm(
                "ed25519 is not supported by this version of OpenSSL.",
                _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM,
            )

return backend.ed25519_load_public_bytes(data)

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

@abc.abstractmethod
    def verify(self, signature, data):
        """
        Verify the signature.
        """

@six.add_metaclass(abc.ABCMeta)
class Ed25519PrivateKey(object):
    @classmethod
    def generate(cls):
        from cryptography.hazmat.backends.openssl.backend import backend

return backend.ed25519_generate_key()

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

return backend.ed25519_load_private_bytes(data)

@abc.abstractmethod
    def public_key(self):
        """
        The Ed25519PublicKey derived from the private key.
        """

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

@abc.abstractmethod
    def sign(self, data):
        """
        Signs the data.
        """

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2024-03-03 07:24:40
..	dir	-	root/root	0755	2024-03-03 07:24:40
__pycache__	dir	-	root/root	0755	2024-03-03 07:24:40
__init__.py	text/x-script.python	1020 B	root/root	0644	2020-10-28 03:11:40
dh.py	text/x-script.python	5.53 KB	root/root	0644	2020-10-28 03:11:40
dsa.py	text/x-script.python	7.01 KB	root/root	0644	2020-10-28 03:11:40
ec.py	text/x-script.python	13.68 KB	root/root	0644	2020-10-28 03:11:40
ed25519.py	text/x-script.python	2.34 KB	root/root	0644	2020-10-28 03:11:40
ed448.py	text/x-script.python	2.27 KB	root/root	0644	2020-10-28 03:11:40
padding.py	text/x-script.python	2.2 KB	root/root	0644	2020-10-28 03:11:40
rsa.py	text/x-script.python	10.25 KB	root/root	0644	2020-10-28 03:11:40
utils.py	text/x-script.python	1.33 KB	root/root	0644	2024-02-27 08:46:12
x25519.py	text/x-script.python	2.22 KB	root/root	0644	2020-10-28 03:11:40
x448.py	text/x-script.python	2.2 KB	root/root	0644	2020-10-28 03:11:40

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