mirror of
https://github.com/PiBrewing/craftbeerpi4.git
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50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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from __future__ import absolute_import, division, print_function
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from cryptography import x509
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from cryptography.hazmat.backends import _get_backend
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from cryptography.hazmat.primitives import serialization
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from cryptography.hazmat.primitives.asymmetric import dsa, ec, rsa
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def load_key_and_certificates(data, password, backend=None):
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backend = _get_backend(backend)
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return backend.load_key_and_certificates_from_pkcs12(data, password)
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def serialize_key_and_certificates(name, key, cert, cas, encryption_algorithm):
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if key is not None and not isinstance(
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key,
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(
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rsa.RSAPrivateKeyWithSerialization,
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dsa.DSAPrivateKeyWithSerialization,
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ec.EllipticCurvePrivateKeyWithSerialization,
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),
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):
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raise TypeError("Key must be RSA, DSA, or EllipticCurve private key.")
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if cert is not None and not isinstance(cert, x509.Certificate):
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raise TypeError("cert must be a certificate")
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if cas is not None:
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cas = list(cas)
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if not all(isinstance(val, x509.Certificate) for val in cas):
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raise TypeError("all values in cas must be certificates")
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if not isinstance(
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encryption_algorithm, serialization.KeySerializationEncryption
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):
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raise TypeError(
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"Key encryption algorithm must be a "
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"KeySerializationEncryption instance"
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)
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if key is None and cert is None and not cas:
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raise ValueError("You must supply at least one of key, cert, or cas")
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backend = _get_backend(None)
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return backend.serialize_key_and_certificates_to_pkcs12(
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name, key, cert, cas, encryption_algorithm
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)
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