39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
# Copyright 2013 Nebula, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import base64
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import subprocess
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class DecryptionFailure(Exception):
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pass
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def decrypt_password(private_key, password):
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"""Base64 decodes password and unencrypts it with private key.
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Requires openssl binary available in the path.
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"""
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unencoded = base64.b64decode(password)
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cmd = ['openssl', 'rsautl', '-decrypt', '-inkey', private_key]
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proc = subprocess.Popen(cmd, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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out, err = proc.communicate(unencoded)
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proc.stdin.close()
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if proc.returncode:
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raise DecryptionFailure(err)
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return out
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