- &InputMaterial::RemoteHTLC { ref per_commitment_point, ref preimage, ref amount, ref locktime } => {
- if let Ok(chan_keys) = TxCreationKeys::new(&self.secp_ctx, &per_commitment_point, &self.remote_tx_cache.remote_delayed_payment_base_key, &self.remote_tx_cache.remote_htlc_base_key, &self.key_storage.pubkeys().revocation_basepoint, &self.key_storage.pubkeys().htlc_basepoint) {
- let mut this_htlc = None;
- if let Some(htlcs) = self.remote_tx_cache.per_htlc.get(&outp.txid) {
- for htlc in htlcs {
- if htlc.transaction_output_index.unwrap() == outp.vout {
- this_htlc = Some(htlc);
- }
- }
- }
- if this_htlc.is_none() { return None; }
- let witness_script = chan_utils::get_htlc_redeemscript_with_explicit_keys(&this_htlc.unwrap(), &chan_keys.a_htlc_key, &chan_keys.b_htlc_key, &chan_keys.revocation_key);
-
- if !preimage.is_some() { bumped_tx.lock_time = *locktime }; // Right now we don't aggregate time-locked transaction, if we do we should set lock_time before to avoid breaking hash computation
- if let Ok(sig) = self.key_storage.sign_remote_htlc_transaction(&bumped_tx, i, &witness_script, *amount, &per_commitment_point, preimage, &self.secp_ctx) {
- bumped_tx.input[i].witness.push(sig.serialize_der().to_vec());
- bumped_tx.input[i].witness[0].push(SigHashType::All as u8);
- if let &Some(preimage) = preimage {
- bumped_tx.input[i].witness.push(preimage.0.to_vec());
- } else {
- // Due to BIP146 (MINIMALIF) this must be a zero-length element to relay.
- bumped_tx.input[i].witness.push(vec![]);
- }
- bumped_tx.input[i].witness.push(witness_script.clone().into_bytes());
+ &InputMaterial::CounterpartyHTLC { ref per_commitment_point, ref counterparty_delayed_payment_base_key, ref counterparty_htlc_base_key, ref preimage, ref htlc } => {
+ if let Ok(tx_keys) = TxCreationKeys::derive_new(&self.secp_ctx, &per_commitment_point, counterparty_delayed_payment_base_key, counterparty_htlc_base_key, &self.signer.pubkeys().revocation_basepoint, &self.signer.pubkeys().htlc_basepoint) {
+ let witness_script = chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, &tx_keys.broadcaster_htlc_key, &tx_keys.countersignatory_htlc_key, &tx_keys.revocation_key);
+
+ if !preimage.is_some() { bumped_tx.lock_time = htlc.cltv_expiry }; // Right now we don't aggregate time-locked transaction, if we do we should set lock_time before to avoid breaking hash computation
+ let sig = self.signer.sign_counterparty_htlc_transaction(&bumped_tx, i, &htlc.amount_msat / 1000, &per_commitment_point, htlc, &self.secp_ctx).expect("sign counterparty HTLC tx");
+ bumped_tx.input[i].witness.push(sig.serialize_der().to_vec());
+ bumped_tx.input[i].witness[0].push(SigHashType::All as u8);
+ if let &Some(preimage) = preimage {
+ bumped_tx.input[i].witness.push(preimage.0.to_vec());
+ } else {
+ // Due to BIP146 (MINIMALIF) this must be a zero-length element to relay.
+ bumped_tx.input[i].witness.push(vec![]);