Server IP : 92.204.138.22 / Your IP : 3.129.26.177 Web Server : Apache System : Linux ns1009439.ip-92-204-138.us 4.18.0-553.8.1.el8_10.x86_64 #1 SMP Tue Jul 2 07:26:33 EDT 2024 x86_64 User : internationaljou ( 1019) PHP Version : 7.4.33 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /var/opt/nydus/ops/cryptography/hazmat/primitives/asymmetric/ |
Upload File : |
# 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. import abc from cryptography.exceptions import UnsupportedAlgorithm, _Reasons from cryptography.hazmat.primitives import _serialization class X448PublicKey(metaclass=abc.ABCMeta): @classmethod def from_public_bytes(cls, data: bytes) -> "X448PublicKey": from cryptography.hazmat.backends.openssl.backend import backend if not backend.x448_supported(): raise UnsupportedAlgorithm( "X448 is not supported by this version of OpenSSL.", _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM, ) return backend.x448_load_public_bytes(data) @abc.abstractmethod def public_bytes( self, encoding: _serialization.Encoding, format: _serialization.PublicFormat, ) -> bytes: """ The serialized bytes of the public key. """ class X448PrivateKey(metaclass=abc.ABCMeta): @classmethod def generate(cls) -> "X448PrivateKey": from cryptography.hazmat.backends.openssl.backend import backend if not backend.x448_supported(): raise UnsupportedAlgorithm( "X448 is not supported by this version of OpenSSL.", _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM, ) return backend.x448_generate_key() @classmethod def from_private_bytes(cls, data: bytes) -> "X448PrivateKey": from cryptography.hazmat.backends.openssl.backend import backend if not backend.x448_supported(): raise UnsupportedAlgorithm( "X448 is not supported by this version of OpenSSL.", _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM, ) return backend.x448_load_private_bytes(data) @abc.abstractmethod def public_key(self) -> X448PublicKey: """ The serialized bytes of the public key. """ @abc.abstractmethod def private_bytes( self, encoding: _serialization.Encoding, format: _serialization.PrivateFormat, encryption_algorithm: _serialization.KeySerializationEncryption, ) -> bytes: """ The serialized bytes of the private key. """ @abc.abstractmethod def exchange(self, peer_public_key: X448PublicKey) -> bytes: """ Performs a key exchange operation using the provided peer's public key. """