mirror of https://github.com/nucypher/nucypher.git
67 lines
1.9 KiB
Python
67 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 random
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import time
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import msgpack
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from nucypher.characters.lawful import Enrico
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HEART_DATA_FILENAME = 'heart_data.msgpack'
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def generate_heart_rate_samples(policy_pubkey,
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samples: int = 500,
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save_as_file: bool = False):
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data_source = Enrico(policy_encrypting_key=policy_pubkey)
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data_source_public_key = bytes(data_source.stamp)
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heart_rate = 80
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now = time.time()
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kits = list()
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for _ in range(samples):
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# Simulated heart rate data
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# Normal resting heart rate for adults: between 60 to 100 BPM
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heart_rate = random.randint(max(60, heart_rate-5),
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min(100, heart_rate+5))
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now += 3
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heart_rate_data = {
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'heart_rate': heart_rate,
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'timestamp': now,
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}
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plaintext = msgpack.dumps(heart_rate_data, use_bin_type=True)
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message_kit, _signature = data_source.encrypt_message(plaintext)
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kit_bytes = message_kit.to_bytes()
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kits.append(kit_bytes)
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data = {
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'data_source': data_source_public_key,
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'kits': kits,
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}
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if save_as_file:
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with open(HEART_DATA_FILENAME, "wb") as file:
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msgpack.dump(data, file, use_bin_type=True)
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return data
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