mirror of https://github.com/nucypher/nucypher.git
66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
"""
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This file is part of nucypher.
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nucypher is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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nucypher is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with nucypher. If not, see <https://www.gnu.org/licenses/>.
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"""
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import json
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import os
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from umbral.keys import UmbralPrivateKey, UmbralPublicKey
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DOCTOR_PUBLIC_JSON = 'doctor.public.json'
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DOCTOR_PRIVATE_JSON = 'doctor.private.json'
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def generate_doctor_keys():
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enc_privkey = UmbralPrivateKey.gen_key()
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sig_privkey = UmbralPrivateKey.gen_key()
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doctor_privkeys = {
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'enc': enc_privkey.to_bytes().hex(),
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'sig': sig_privkey.to_bytes().hex(),
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}
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with open(DOCTOR_PRIVATE_JSON, 'w') as f:
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json.dump(doctor_privkeys, f)
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enc_pubkey = enc_privkey.get_pubkey()
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sig_pubkey = sig_privkey.get_pubkey()
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doctor_pubkeys = {
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'enc': enc_pubkey.to_bytes().hex(),
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'sig': sig_pubkey.to_bytes().hex()
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}
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with open(DOCTOR_PUBLIC_JSON, 'w') as f:
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json.dump(doctor_pubkeys, f)
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def _get_keys(file, key_class):
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if not os.path.isfile(file):
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generate_doctor_keys()
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with open(file) as f:
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stored_keys = json.load(f)
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keys = dict()
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for key_type, key_str in stored_keys.items():
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keys[key_type] = key_class.from_bytes(bytes.fromhex(key_str))
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return keys
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def get_doctor_pubkeys():
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return _get_keys(DOCTOR_PUBLIC_JSON, UmbralPublicKey)
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def get_doctor_privkeys():
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return _get_keys(DOCTOR_PRIVATE_JSON, UmbralPrivateKey)
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