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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. import abc from cryptography import utils # This exists to break an import cycle. These classes are normally accessible # from the serialization module. class Encoding(utils.Enum): PEM = "PEM" DER = "DER" OpenSSH = "OpenSSH" Raw = "Raw" X962 = "ANSI X9.62" SMIME = "S/MIME" class PrivateFormat(utils.Enum): PKCS8 = "PKCS8" TraditionalOpenSSL = "TraditionalOpenSSL" Raw = "Raw" OpenSSH = "OpenSSH" class PublicFormat(utils.Enum): SubjectPublicKeyInfo = "X.509 subjectPublicKeyInfo with PKCS#1" PKCS1 = "Raw PKCS#1" OpenSSH = "OpenSSH" Raw = "Raw" CompressedPoint = "X9.62 Compressed Point" UncompressedPoint = "X9.62 Uncompressed Point" class ParameterFormat(utils.Enum): PKCS3 = "PKCS3" class KeySerializationEncryption(metaclass=abc.ABCMeta): pass class BestAvailableEncryption(KeySerializationEncryption): def __init__(self, password: bytes): if not isinstance(password, bytes) or len(password) == 0: raise ValueError("Password must be 1 or more bytes.") self.password = password class NoEncryption(KeySerializationEncryption): pass