X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fln%2Fchannelmonitor.rs;h=00b348002dd3faf9a63f4e6c458b088c161eda01;hb=5170fc95d82b7282893621683d86c5180ea9c5f5;hp=8c3fcc3f0a02ad21dbb838759241e57eec4e70b7;hpb=73932d75dcf890f32a7992494a156b2f8e7def44;p=rust-lightning

diff --git a/src/ln/channelmonitor.rs b/src/ln/channelmonitor.rs
index 8c3fcc3f..00b34800 100644
--- a/src/ln/channelmonitor.rs
+++ b/src/ln/channelmonitor.rs
@@ -910,7 +910,7 @@ impl ChannelMonitor {
 		let commitment_txid = tx.txid(); //TODO: This is gonna be a performance bottleneck for watchtowers!
 		let per_commitment_option = self.remote_claimable_outpoints.get(&commitment_txid);
 
-		let commitment_number = (((tx.input[0].sequence as u64 & 0xffffff) << 3*8) | (tx.lock_time as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor;
+		let commitment_number = 0xffffffffffff - ((((tx.input[0].sequence as u64 & 0xffffff) << 3*8) | (tx.lock_time as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor);
 		if commitment_number >= self.get_min_seen_secret() {
 			let secret = self.get_secret(commitment_number).unwrap();
 			let per_commitment_key = ignore_error!(SecretKey::from_slice(&self.secp_ctx, &secret));