ea5e8da627
Use cryptography instead of the flaky openssl libraries loading. If the libssl DLLs were not present or were present in another order then the required one, there could be errors when securing the password before sending it to the metadata service. Fixes: https://github.com/cloudbase/cloudbase-init/issues/34 Change-Id: I1a2245e199f65f4665071ada9576dcae77a3a432
41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
# Copyright 2013 Cloudbase Solutions Srl
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
import base64
|
|
|
|
from cryptography.hazmat import backends
|
|
from cryptography.hazmat.primitives.asymmetric import padding
|
|
from cryptography.hazmat.primitives import serialization
|
|
|
|
|
|
class CryptException(Exception):
|
|
pass
|
|
|
|
|
|
class CryptManager(object):
|
|
|
|
def public_encrypt(self, ssh_pub_key, password):
|
|
ssh_rsa_prefix = "ssh-rsa "
|
|
|
|
if not ssh_pub_key.startswith(ssh_rsa_prefix):
|
|
raise CryptException('Invalid SSH key')
|
|
|
|
rsa_public_key = serialization.load_ssh_public_key(
|
|
ssh_pub_key.encode(), backends.default_backend())
|
|
enc_password = rsa_public_key.encrypt(
|
|
password.encode(),
|
|
padding.PKCS1v15()
|
|
)
|
|
return base64.b64encode(enc_password)
|