decrypt_master_key.py: prints the existing master xprv after an explicit confirmation prompt, for disaster-recovery backups. Falls back to ./data/keys/master.xprv.enc (the docker-compose.yml bind-mount path) when .env's configured MASTER_KEY_PATH doesn't exist locally. encrypt_master_key.py: the reverse direction — takes an externally-generated xprv (e.g. created offline/air-gapped) via a hidden getpass prompt, validates it parses as a private extended key, and encrypts it with the same Fernet scheme generate_master_key.py uses. Refuses to overwrite an existing key file unless --overwrite is passed. Neither script is reachable via any API endpoint or the admin panel, by design — this is the one secret the entire custodial wallet derives from. Documented in docs/setup.md (new "Recuperare o portare una xprv esistente" section) and CLAUDE.md's Commands block. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
"""One-time ops recovery: decrypt and print the server's master xprv.
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This is the single secret the entire custodial wallet derives from (every
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user address, the pool address) — treat the output like a root password.
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Not exposed via any API endpoint or the admin panel, by design; run manually,
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locally, only when you actually need it (e.g. disaster-recovery backup).
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Usage:
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python scripts/decrypt_master_key.py
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Requires XPRV_ENCRYPTION_KEY to already be set (.env), same as the running
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server. Looks for the encrypted key at MASTER_KEY_PATH (.env) — if that path
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doesn't exist, falls back to ./data/keys/master.xprv.enc, the location
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docker-compose.yml bind-mounts it to, since .env's default (./master.xprv.enc)
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often doesn't match wherever the running server actually reads it from.
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"""
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import os
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from app.config import settings
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from app.wallet.keystore import decrypt_xprv
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_DOCKER_COMPOSE_PATH = "./data/keys/master.xprv.enc"
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def _resolve_key_path() -> str:
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if os.path.exists(settings.master_key_path):
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return settings.master_key_path
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if os.path.exists(_DOCKER_COMPOSE_PATH):
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print(f"{settings.master_key_path} not found — using {_DOCKER_COMPOSE_PATH} instead.")
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return _DOCKER_COMPOSE_PATH
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raise SystemExit(f"No master key found at {settings.master_key_path} or {_DOCKER_COMPOSE_PATH}")
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if __name__ == "__main__":
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if not settings.xprv_encryption_key:
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raise SystemExit("XPRV_ENCRYPTION_KEY is not set")
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key_path = _resolve_key_path()
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print(f"About to decrypt and print the master xprv from {key_path}.")
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print("This key controls every user's funds and the pool. Make sure this")
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print("terminal isn't logged/recorded and no one is watching your screen.")
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confirm = input("Type 'yes' to continue: ")
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if confirm.strip().lower() != "yes":
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raise SystemExit("Aborted.")
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with open(key_path, "rb") as f:
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token = f.read()
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print(decrypt_xprv(token))
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