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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