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25 lines
930 B
Python
25 lines
930 B
Python
# SPDX-FileCopyrightText: 2021-2022 Citadel and contributors
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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import os
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import subprocess
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scriptDir = os.path.dirname(os.path.realpath(__file__))
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nodeRoot = os.path.join(scriptDir, "..", "..")
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def deriveEntropy(identifier: str):
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seedFile = os.path.join(nodeRoot, "db", "citadel-seed", "seed")
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alternativeSeedFile = os.path.join(nodeRoot, "..", "db", "citadel-seed", "seed")
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if not os.path.isfile(seedFile):
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if os.path.isfile(alternativeSeedFile):
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seedFile = alternativeSeedFile
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else:
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print("No seed file found, exiting...")
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exit(1)
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with open(seedFile, "r") as f:
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node_seed = f.read().strip()
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entropy = subprocess.check_output(
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'printf "%s" "{}" | openssl dgst -sha256 -binary -hmac "{}" | xxd -p | tr --delete "\n"'.format(identifier, node_seed), shell=True)
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return entropy.decode("utf-8")
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