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Allow lock-tx nLockTime to be > chain height + 2

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This commit is contained in:
tecnovert
2025-08-04 18:16:14 +02:00
parent dd2e8d1b59
commit 4fa61e8e49
3 changed files with 31 additions and 4 deletions
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11
basicswap/interface/part.py
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@@ -490,7 +490,16 @@ class PARTInterfaceBlind(PARTInterface):
self._log.info("Verifying lock tx: {}.".format(self._log.id(lock_txid_hex)))
ensure(lock_tx_obj["version"] == self.txVersion(), "Bad version")
ensure(lock_tx_obj["locktime"] == 0, "Bad nLockTime")
lock_time: int = lock_tx_obj["locktime"]
# locktime must be <= chainheight + 2
# TODO: locktime is set to 0 to keep compaitibility with older nodes.
# Set locktime to current chainheight in createSCLockTx.
if lock_time != 0:
current_height: int = self.getChainHeight()
if lock_time > current_height + 2:
raise ValueError(
f"{self.coin_name()} - Bad nLockTime {lock_time}, current height {current_height}"
)
# Find the output of the lock tx to verify
nonce = self.getScriptLockTxNonce(vkbv)