X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fchannel.rs;h=53946720e69f48a3c54f39d59923f259f97e6ecf;hb=07db23d102738d1e84e3d2cb36101cef92e1761d;hp=02b1ae4ed2f58b413e8e4375716d490b6e0552e3;hpb=f263b3793f4ee593e3358b68c8822524faecb9f1;p=rust-lightning

diff --git a/lightning/src/ln/channel.rs b/lightning/src/ln/channel.rs
index 02b1ae4e..53946720 100644
--- a/lightning/src/ln/channel.rs
+++ b/lightning/src/ln/channel.rs
@@ -6,21 +6,20 @@ use bitcoin::util::hash::BitcoinHash;
 use bitcoin::util::bip143;
 use bitcoin::consensus::encode;
 
-use bitcoin_hashes::{Hash, HashEngine};
-use bitcoin_hashes::sha256::Hash as Sha256;
-use bitcoin_hashes::hash160::Hash as Hash160;
-use bitcoin_hashes::sha256d::Hash as Sha256dHash;
+use bitcoin::hashes::{Hash, HashEngine};
+use bitcoin::hashes::sha256::Hash as Sha256;
+use bitcoin::hash_types::{Txid, BlockHash, WPubkeyHash};
 
-use secp256k1::key::{PublicKey,SecretKey};
-use secp256k1::{Secp256k1,Signature};
-use secp256k1;
+use bitcoin::secp256k1::key::{PublicKey,SecretKey};
+use bitcoin::secp256k1::{Secp256k1,Signature};
+use bitcoin::secp256k1;
 
 use ln::features::{ChannelFeatures, InitFeatures};
 use ln::msgs;
 use ln::msgs::{DecodeError, OptionalField, DataLossProtect};
-use ln::channelmonitor::ChannelMonitor;
-use ln::channelmanager::{PendingHTLCStatus, HTLCSource, HTLCFailReason, HTLCFailureMsg, PendingForwardHTLCInfo, RAACommitmentOrder, PaymentPreimage, PaymentHash, BREAKDOWN_TIMEOUT, MAX_LOCAL_BREAKDOWN_TIMEOUT};
-use ln::chan_utils::{LocalCommitmentTransaction, TxCreationKeys, HTLCOutputInCommitment, HTLC_SUCCESS_TX_WEIGHT, HTLC_TIMEOUT_TX_WEIGHT, make_funding_redeemscript, ChannelPublicKeys};
+use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, ChannelMonitorUpdateStep, HTLC_FAIL_BACK_BUFFER};
+use ln::channelmanager::{PendingHTLCStatus, HTLCSource, HTLCFailReason, HTLCFailureMsg, PendingHTLCInfo, RAACommitmentOrder, PaymentPreimage, PaymentHash, BREAKDOWN_TIMEOUT, MAX_LOCAL_BREAKDOWN_TIMEOUT};
+use ln::chan_utils::{CounterpartyCommitmentSecrets, LocalCommitmentTransaction, TxCreationKeys, HTLCOutputInCommitment, HTLC_SUCCESS_TX_WEIGHT, HTLC_TIMEOUT_TX_WEIGHT, make_funding_redeemscript, ChannelPublicKeys};
 use ln::chan_utils;
 use chain::chaininterface::{FeeEstimator,ConfirmationTarget};
 use chain::transaction::OutPoint;
@@ -35,6 +34,7 @@ use std;
 use std::default::Default;
 use std::{cmp,mem,fmt};
 use std::sync::{Arc};
+use std::ops::Deref;
 
 #[cfg(test)]
 pub struct ChannelValueStat {
@@ -206,8 +206,8 @@ enum ChannelState {
 	/// to drop us, but we store this anyway.
 	ShutdownComplete = 4096,
 }
-const BOTH_SIDES_SHUTDOWN_MASK: u32 = (ChannelState::LocalShutdownSent as u32 | ChannelState::RemoteShutdownSent as u32);
-const MULTI_STATE_FLAGS: u32 = (BOTH_SIDES_SHUTDOWN_MASK | ChannelState::PeerDisconnected as u32 | ChannelState::MonitorUpdateFailed as u32);
+const BOTH_SIDES_SHUTDOWN_MASK: u32 = ChannelState::LocalShutdownSent as u32 | ChannelState::RemoteShutdownSent as u32;
+const MULTI_STATE_FLAGS: u32 = BOTH_SIDES_SHUTDOWN_MASK | ChannelState::PeerDisconnected as u32 | ChannelState::MonitorUpdateFailed as u32;
 
 const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1;
 
@@ -240,8 +240,14 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 	secp_ctx: Secp256k1<secp256k1::All>,
 	channel_value_satoshis: u64,
 
+	latest_monitor_update_id: u64,
+
+	#[cfg(not(test))]
 	local_keys: ChanSigner,
+	#[cfg(test)]
+	pub(super) local_keys: ChanSigner,
 	shutdown_pubkey: PublicKey,
+	destination_script: Script,
 
 	// Our commitment numbers start at 2^48-1 and count down, whereas the ones used in transaction
 	// generation start at 0 and count up...this simplifies some parts of implementation at the
@@ -266,7 +272,7 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 	monitor_pending_funding_locked: bool,
 	monitor_pending_revoke_and_ack: bool,
 	monitor_pending_commitment_signed: bool,
-	monitor_pending_forwards: Vec<(PendingForwardHTLCInfo, u64)>,
+	monitor_pending_forwards: Vec<(PendingHTLCInfo, u64)>,
 	monitor_pending_failures: Vec<(HTLCSource, PaymentHash, HTLCFailReason)>,
 
 	// pending_update_fee is filled when sending and receiving update_fee
@@ -288,7 +294,7 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 	holding_cell_update_fee: Option<u64>,
 	next_local_htlc_id: u64,
 	next_remote_htlc_id: u64,
-	channel_update_count: u32,
+	update_time_counter: u32,
 	feerate_per_kw: u64,
 
 	#[cfg(debug_assertions)]
@@ -300,15 +306,17 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 
 	last_sent_closing_fee: Option<(u64, u64, Signature)>, // (feerate, fee, our_sig)
 
+	funding_txo: Option<OutPoint>,
+
 	/// The hash of the block in which the funding transaction reached our CONF_TARGET. We use this
 	/// to detect unconfirmation after a serialize-unserialize roundtrip where we may not see a full
 	/// series of block_connected/block_disconnected calls. Obviously this is not a guarantee as we
 	/// could miss the funding_tx_confirmed_in block as well, but it serves as a useful fallback.
-	funding_tx_confirmed_in: Option<Sha256dHash>,
+	funding_tx_confirmed_in: Option<BlockHash>,
 	short_channel_id: Option<u64>,
 	/// Used to deduplicate block_connected callbacks, also used to verify consistency during
 	/// ChannelManager deserialization (hence pub(super))
-	pub(super) last_block_connected: Sha256dHash,
+	pub(super) last_block_connected: BlockHash,
 	funding_tx_confirmations: u64,
 
 	their_dust_limit_satoshis: u64,
@@ -344,7 +352,10 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 
 	their_shutdown_scriptpubkey: Option<Script>,
 
-	channel_monitor: ChannelMonitor,
+	/// Used exclusively to broadcast the latest local state, mostly a historical quirk that this
+	/// is here:
+	channel_monitor: Option<ChannelMonitor<ChanSigner>>,
+	commitment_secrets: CounterpartyCommitmentSecrets,
 
 	network_sync: UpdateStatus,
 
@@ -356,14 +367,21 @@ pub const OUR_MAX_HTLCS: u16 = 50; //TODO
 /// on ice until the funding transaction gets more confirmations, but the LN protocol doesn't
 /// really allow for this, so instead we're stuck closing it out at that point.
 const UNCONF_THRESHOLD: u32 = 6;
-/// Exposing these two constants for use in test in ChannelMonitor
-pub const COMMITMENT_TX_BASE_WEIGHT: u64 = 724;
-pub const COMMITMENT_TX_WEIGHT_PER_HTLC: u64 = 172;
 const SPENDING_INPUT_FOR_A_OUTPUT_WEIGHT: u64 = 79; // prevout: 36, nSequence: 4, script len: 1, witness lengths: (3+1)/4, sig: 73/4, if-selector: 1, redeemScript: (6 ops + 2*33 pubkeys + 1*2 delay)/4
 const B_OUTPUT_PLUS_SPENDING_INPUT_WEIGHT: u64 = 104; // prevout: 40, nSequence: 4, script len: 1, witness lengths: 3/4, sig: 73/4, pubkey: 33/4, output: 31 (TODO: Wrong? Useless?)
+
+#[cfg(not(test))]
+const COMMITMENT_TX_BASE_WEIGHT: u64 = 724;
+#[cfg(test)]
+pub const COMMITMENT_TX_BASE_WEIGHT: u64 = 724;
+#[cfg(not(test))]
+const COMMITMENT_TX_WEIGHT_PER_HTLC: u64 = 172;
+#[cfg(test)]
+pub const COMMITMENT_TX_WEIGHT_PER_HTLC: u64 = 172;
+
 /// Maximmum `funding_satoshis` value, according to the BOLT #2 specification
 /// it's 2^24.
-pub const MAX_FUNDING_SATOSHIS: u64 = (1 << 24);
+pub const MAX_FUNDING_SATOSHIS: u64 = 1 << 24;
 
 /// Used to return a simple Error back to ChannelManager. Will get converted to a
 /// msgs::ErrorAction::SendErrorMessage or msgs::ErrorAction::IgnoreError as appropriate with our
@@ -371,10 +389,7 @@ pub const MAX_FUNDING_SATOSHIS: u64 = (1 << 24);
 pub(super) enum ChannelError {
 	Ignore(&'static str),
 	Close(&'static str),
-	CloseDelayBroadcast {
-		msg: &'static str,
-		update: Option<ChannelMonitor>
-	},
+	CloseDelayBroadcast(&'static str),
 }
 
 impl fmt::Debug for ChannelError {
@@ -382,7 +397,7 @@ impl fmt::Debug for ChannelError {
 		match self {
 			&ChannelError::Ignore(e) => write!(f, "Ignore : {}", e),
 			&ChannelError::Close(e) => write!(f, "Close : {}", e),
-			&ChannelError::CloseDelayBroadcast { msg, .. } => write!(f, "CloseDelayBroadcast : {}", msg)
+			&ChannelError::CloseDelayBroadcast(e) => write!(f, "CloseDelayBroadcast : {}", e)
 		}
 	}
 }
@@ -414,13 +429,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		cmp::max(at_open_background_feerate * B_OUTPUT_PLUS_SPENDING_INPUT_WEIGHT / 1000, 546) //TODO
 	}
 
-	fn derive_our_htlc_minimum_msat(_at_open_channel_feerate_per_kw: u64) -> u64 {
-		1000 // TODO
-	}
-
 	// Constructors:
-	pub fn new_outbound(fee_estimator: &FeeEstimator, keys_provider: &Arc<KeysInterface<ChanKeySigner = ChanSigner>>, their_node_id: PublicKey, channel_value_satoshis: u64, push_msat: u64, user_id: u64, logger: Arc<Logger>, config: &UserConfig) -> Result<Channel<ChanSigner>, APIError> {
-		let chan_keys = keys_provider.get_channel_keys(false);
+	pub fn new_outbound<K: Deref, F: Deref>(fee_estimator: &F, keys_provider: &K, their_node_id: PublicKey, channel_value_satoshis: u64, push_msat: u64, user_id: u64, logger: Arc<Logger>, config: &UserConfig) -> Result<Channel<ChanSigner>, APIError>
+	where K::Target: KeysInterface<ChanKeySigner = ChanSigner>,
+	      F::Target: FeeEstimator,
+	{
+		let chan_keys = keys_provider.get_channel_keys(false, channel_value_satoshis);
 
 		if channel_value_satoshis >= MAX_FUNDING_SATOSHIS {
 			return Err(APIError::APIMisuseError{err: "funding value > 2^24"});
@@ -441,11 +455,6 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		let feerate = fee_estimator.get_est_sat_per_1000_weight(ConfirmationTarget::Normal);
 
-		let secp_ctx = Secp256k1::new();
-		let channel_monitor = ChannelMonitor::new(chan_keys.funding_key(), chan_keys.revocation_base_key(), chan_keys.delayed_payment_base_key(),
-		                                          chan_keys.htlc_base_key(), chan_keys.payment_base_key(), &keys_provider.get_shutdown_pubkey(), config.own_channel_config.our_to_self_delay,
-		                                          keys_provider.get_destination_script(), logger.clone());
-
 		Ok(Channel {
 			user_id: user_id,
 			config: config.channel_options.clone(),
@@ -453,11 +462,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			channel_id: keys_provider.get_channel_id(),
 			channel_state: ChannelState::OurInitSent as u32,
 			channel_outbound: true,
-			secp_ctx: secp_ctx,
+			secp_ctx: Secp256k1::new(),
 			channel_value_satoshis: channel_value_satoshis,
 
+			latest_monitor_update_id: 0,
+
 			local_keys: chan_keys,
 			shutdown_pubkey: keys_provider.get_shutdown_pubkey(),
+			destination_script: keys_provider.get_destination_script(),
+
 			cur_local_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
 			cur_remote_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
 			value_to_self_msat: channel_value_satoshis * 1000 - push_msat,
@@ -469,7 +482,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			holding_cell_update_fee: None,
 			next_local_htlc_id: 0,
 			next_remote_htlc_id: 0,
-			channel_update_count: 1,
+			update_time_counter: 1,
 
 			resend_order: RAACommitmentOrder::CommitmentFirst,
 
@@ -486,6 +499,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			last_sent_closing_fee: None,
 
+			funding_txo: None,
 			funding_tx_confirmed_in: None,
 			short_channel_id: None,
 			last_block_connected: Default::default(),
@@ -497,7 +511,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			their_max_htlc_value_in_flight_msat: 0,
 			their_channel_reserve_satoshis: 0,
 			their_htlc_minimum_msat: 0,
-			our_htlc_minimum_msat: Channel::<ChanSigner>::derive_our_htlc_minimum_msat(feerate),
+			our_htlc_minimum_msat: if config.own_channel_config.our_htlc_minimum_msat == 0 { 1 } else { config.own_channel_config.our_htlc_minimum_msat },
 			their_to_self_delay: 0,
 			our_to_self_delay: config.own_channel_config.our_to_self_delay,
 			their_max_accepted_htlcs: 0,
@@ -511,7 +525,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			their_shutdown_scriptpubkey: None,
 
-			channel_monitor: channel_monitor,
+			channel_monitor: None,
+			commitment_secrets: CounterpartyCommitmentSecrets::new(),
 
 			network_sync: UpdateStatus::Fresh,
 
@@ -519,7 +534,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		})
 	}
 
-	fn check_remote_fee(fee_estimator: &FeeEstimator, feerate_per_kw: u32) -> Result<(), ChannelError> {
+	fn check_remote_fee<F: Deref>(fee_estimator: &F, feerate_per_kw: u32) -> Result<(), ChannelError>
+		where F::Target: FeeEstimator
+	{
 		if (feerate_per_kw as u64) < fee_estimator.get_est_sat_per_1000_weight(ConfirmationTarget::Background) {
 			return Err(ChannelError::Close("Peer's feerate much too low"));
 		}
@@ -531,12 +548,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	/// Creates a new channel from a remote sides' request for one.
 	/// Assumes chain_hash has already been checked and corresponds with what we expect!
-	pub fn new_from_req(fee_estimator: &FeeEstimator, keys_provider: &Arc<KeysInterface<ChanKeySigner = ChanSigner>>, their_node_id: PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel, user_id: u64, logger: Arc<Logger>, config: &UserConfig) -> Result<Channel<ChanSigner>, ChannelError> {
-		let mut chan_keys = keys_provider.get_channel_keys(true);
+	pub fn new_from_req<K: Deref, F: Deref>(fee_estimator: &F, keys_provider: &K, their_node_id: PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel, user_id: u64, logger: Arc<Logger>, config: &UserConfig) -> Result<Channel<ChanSigner>, ChannelError>
+		where K::Target: KeysInterface<ChanKeySigner = ChanSigner>,
+          F::Target: FeeEstimator
+	{
+		let mut chan_keys = keys_provider.get_channel_keys(true, msg.funding_satoshis);
 		let their_pubkeys = ChannelPublicKeys {
 			funding_pubkey: msg.funding_pubkey,
 			revocation_basepoint: msg.revocation_basepoint,
-			payment_basepoint: msg.payment_basepoint,
+			payment_point: msg.payment_point,
 			delayed_payment_basepoint: msg.delayed_payment_basepoint,
 			htlc_basepoint: msg.htlc_basepoint
 		};
@@ -639,11 +659,6 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Insufficient funding amount for initial commitment"));
 		}
 
-		let secp_ctx = Secp256k1::new();
-		let channel_monitor = ChannelMonitor::new(chan_keys.funding_key(), chan_keys.revocation_base_key(), chan_keys.delayed_payment_base_key(),
-		                                          chan_keys.htlc_base_key(), chan_keys.payment_base_key(), &keys_provider.get_shutdown_pubkey(), config.own_channel_config.our_to_self_delay,
-		                                          keys_provider.get_destination_script(), logger.clone());
-
 		let their_shutdown_scriptpubkey = if their_features.supports_upfront_shutdown_script() {
 			match &msg.shutdown_scriptpubkey {
 				&OptionalField::Present(ref script) => {
@@ -665,17 +680,21 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 		} else { None };
 
-		let mut chan = Channel {
+		let chan = Channel {
 			user_id: user_id,
 			config: local_config,
 
 			channel_id: msg.temporary_channel_id,
 			channel_state: (ChannelState::OurInitSent as u32) | (ChannelState::TheirInitSent as u32),
 			channel_outbound: false,
-			secp_ctx: secp_ctx,
+			secp_ctx: Secp256k1::new(),
+
+			latest_monitor_update_id: 0,
 
 			local_keys: chan_keys,
 			shutdown_pubkey: keys_provider.get_shutdown_pubkey(),
+			destination_script: keys_provider.get_destination_script(),
+
 			cur_local_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
 			cur_remote_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
 			value_to_self_msat: msg.push_msat,
@@ -687,7 +706,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			holding_cell_update_fee: None,
 			next_local_htlc_id: 0,
 			next_remote_htlc_id: 0,
-			channel_update_count: 1,
+			update_time_counter: 1,
 
 			resend_order: RAACommitmentOrder::CommitmentFirst,
 
@@ -704,6 +723,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			last_sent_closing_fee: None,
 
+			funding_txo: None,
 			funding_tx_confirmed_in: None,
 			short_channel_id: None,
 			last_block_connected: Default::default(),
@@ -716,7 +736,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			their_max_htlc_value_in_flight_msat: cmp::min(msg.max_htlc_value_in_flight_msat, msg.funding_satoshis * 1000),
 			their_channel_reserve_satoshis: msg.channel_reserve_satoshis,
 			their_htlc_minimum_msat: msg.htlc_minimum_msat,
-			our_htlc_minimum_msat: Channel::<ChanSigner>::derive_our_htlc_minimum_msat(msg.feerate_per_kw as u64),
+			our_htlc_minimum_msat: if config.own_channel_config.our_htlc_minimum_msat == 0 { 1 } else { config.own_channel_config.our_htlc_minimum_msat },
 			their_to_self_delay: msg.to_self_delay,
 			our_to_self_delay: config.own_channel_config.our_to_self_delay,
 			their_max_accepted_htlcs: msg.max_accepted_htlcs,
@@ -730,17 +750,14 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			their_shutdown_scriptpubkey,
 
-			channel_monitor: channel_monitor,
+			channel_monitor: None,
+			commitment_secrets: CounterpartyCommitmentSecrets::new(),
 
 			network_sync: UpdateStatus::Fresh,
 
 			logger,
 		};
 
-		let obscure_factor = chan.get_commitment_transaction_number_obscure_factor();
-		let funding_redeemscript = chan.get_funding_redeemscript();
-		chan.channel_monitor.set_basic_channel_info(&msg.htlc_basepoint, &msg.delayed_payment_basepoint, msg.to_self_delay, funding_redeemscript, msg.funding_satoshis, obscure_factor);
-
 		Ok(chan)
 	}
 
@@ -755,15 +772,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	fn get_commitment_transaction_number_obscure_factor(&self) -> u64 {
 		let mut sha = Sha256::engine();
-		let our_payment_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_base_key());
+		let our_payment_point = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_key());
 
-		let their_payment_basepoint = &self.their_pubkeys.as_ref().unwrap().payment_basepoint.serialize();
+		let their_payment_point = &self.their_pubkeys.as_ref().unwrap().payment_point.serialize();
 		if self.channel_outbound {
-			sha.input(&our_payment_basepoint.serialize());
-			sha.input(their_payment_basepoint);
+			sha.input(&our_payment_point.serialize());
+			sha.input(their_payment_point);
 		} else {
-			sha.input(their_payment_basepoint);
-			sha.input(&our_payment_basepoint.serialize());
+			sha.input(their_payment_point);
+			sha.input(&our_payment_point.serialize());
 		}
 		let res = Sha256::from_engine(sha).into_inner();
 
@@ -799,7 +816,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let txins = {
 			let mut ins: Vec<TxIn> = Vec::new();
 			ins.push(TxIn {
-				previous_output: self.channel_monitor.get_funding_txo().unwrap().into_bitcoin_outpoint(),
+				previous_output: self.funding_txo.unwrap().into_bitcoin_outpoint(),
 				script_sig: Script::new(),
 				sequence: ((0x80 as u32) << 8*3) | ((obscured_commitment_transaction_number >> 3*8) as u32),
 				witness: Vec::new(),
@@ -960,9 +977,14 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		if value_to_b >= (dust_limit_satoshis as i64) {
 			log_trace!(self, "   ...including {} output with value {}", if local { "to_remote" } else { "to_local" }, value_to_b);
+			let static_payment_pk = if local {
+				self.their_pubkeys.as_ref().unwrap().payment_point
+			} else {
+				self.local_keys.pubkeys().payment_point
+			}.serialize();
 			txouts.push((TxOut {
 				script_pubkey: Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0)
-				                             .push_slice(&Hash160::hash(&keys.b_payment_key.serialize())[..])
+				                             .push_slice(&WPubkeyHash::hash(&static_payment_pk)[..])
 				                             .into_script(),
 				value: value_to_b as u64
 			}, None));
@@ -1004,7 +1026,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	#[inline]
 	fn get_closing_scriptpubkey(&self) -> Script {
-		let our_channel_close_key_hash = Hash160::hash(&self.shutdown_pubkey.serialize());
+		let our_channel_close_key_hash = WPubkeyHash::hash(&self.shutdown_pubkey.serialize());
 		Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_close_key_hash[..]).into_script()
 	}
 
@@ -1018,7 +1040,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let txins = {
 			let mut ins: Vec<TxIn> = Vec::new();
 			ins.push(TxIn {
-				previous_output: self.channel_monitor.get_funding_txo().unwrap().into_bitcoin_outpoint(),
+				previous_output: self.funding_txo.unwrap().into_bitcoin_outpoint(),
 				script_sig: Script::new(),
 				sequence: 0xffffffff,
 				witness: Vec::new(),
@@ -1083,7 +1105,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let htlc_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.htlc_base_key());
 		let their_pubkeys = self.their_pubkeys.as_ref().unwrap();
 
-		Ok(secp_check!(TxCreationKeys::new(&self.secp_ctx, &per_commitment_point, &delayed_payment_base, &htlc_basepoint, &their_pubkeys.revocation_basepoint, &their_pubkeys.payment_basepoint, &their_pubkeys.htlc_basepoint), "Local tx keys generation got bogus keys"))
+		Ok(secp_check!(TxCreationKeys::new(&self.secp_ctx, &per_commitment_point, &delayed_payment_base, &htlc_basepoint, &their_pubkeys.revocation_basepoint, &their_pubkeys.htlc_basepoint), "Local tx keys generation got bogus keys"))
 	}
 
 	#[inline]
@@ -1093,12 +1115,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	fn build_remote_transaction_keys(&self) -> Result<TxCreationKeys, ChannelError> {
 		//TODO: Ensure that the payment_key derived here ends up in the library users' wallet as we
 		//may see payments to it!
-		let payment_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_base_key());
 		let revocation_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.revocation_base_key());
 		let htlc_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.htlc_base_key());
 		let their_pubkeys = self.their_pubkeys.as_ref().unwrap();
 
-		Ok(secp_check!(TxCreationKeys::new(&self.secp_ctx, &self.their_cur_commitment_point.unwrap(), &their_pubkeys.delayed_payment_basepoint, &their_pubkeys.htlc_basepoint, &revocation_basepoint, &payment_basepoint, &htlc_basepoint), "Remote tx keys generation got bogus keys"))
+		Ok(secp_check!(TxCreationKeys::new(&self.secp_ctx, &self.their_cur_commitment_point.unwrap(), &their_pubkeys.delayed_payment_basepoint, &their_pubkeys.htlc_basepoint, &revocation_basepoint, &htlc_basepoint), "Remote tx keys generation got bogus keys"))
 	}
 
 	/// Gets the redeemscript for the funding transaction output (ie the funding transaction output
@@ -1112,14 +1133,17 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// Builds the htlc-success or htlc-timeout transaction which spends a given HTLC output
 	/// @local is used only to convert relevant internal structures which refer to remote vs local
 	/// to decide value of outputs and direction of HTLCs.
-	fn build_htlc_transaction(&self, prev_hash: &Sha256dHash, htlc: &HTLCOutputInCommitment, local: bool, keys: &TxCreationKeys, feerate_per_kw: u64) -> Transaction {
+	fn build_htlc_transaction(&self, prev_hash: &Txid, htlc: &HTLCOutputInCommitment, local: bool, keys: &TxCreationKeys, feerate_per_kw: u64) -> Transaction {
 		chan_utils::build_htlc_transaction(prev_hash, feerate_per_kw, if local { self.their_to_self_delay } else { self.our_to_self_delay }, htlc, &keys.a_delayed_payment_key, &keys.revocation_key)
 	}
 
 	/// Per HTLC, only one get_update_fail_htlc or get_update_fulfill_htlc call may be made.
-	/// In such cases we debug_assert!(false) and return an IgnoreError. Thus, will always return
-	/// Ok(_) if debug assertions are turned on and preconditions are met.
-	fn get_update_fulfill_htlc(&mut self, htlc_id_arg: u64, payment_preimage_arg: PaymentPreimage) -> Result<(Option<msgs::UpdateFulfillHTLC>, Option<ChannelMonitor>), ChannelError> {
+	/// In such cases we debug_assert!(false) and return a ChannelError::Ignore. Thus, will always
+	/// return Ok(_) if debug assertions are turned on or preconditions are met.
+	///
+	/// Note that it is still possible to hit these assertions in case we find a preimage on-chain
+	/// but then have a reorg which settles on an HTLC-failure on chain.
+	fn get_update_fulfill_htlc(&mut self, htlc_id_arg: u64, payment_preimage_arg: PaymentPreimage) -> Result<(Option<msgs::UpdateFulfillHTLC>, Option<ChannelMonitorUpdate>), ChannelError> {
 		// Either ChannelFunded got set (which means it won't be unset) or there is no way any
 		// caller thought we could have something claimed (cause we wouldn't have accepted in an
 		// incoming HTLC anyway). If we got to ShutdownComplete, callers aren't allowed to call us,
@@ -1146,6 +1170,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 						} else {
 							log_warn!(self, "Have preimage and want to fulfill HTLC with payment hash {} we already failed against channel {}", log_bytes!(htlc.payment_hash.0), log_bytes!(self.channel_id()));
 						}
+						debug_assert!(false, "Tried to fulfill an HTLC that was already fail/fulfilled");
 						return Ok((None, None));
 					},
 					_ => {
@@ -1165,13 +1190,23 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		//
 		// We have to put the payment_preimage in the channel_monitor right away here to ensure we
 		// can claim it even if the channel hits the chain before we see their next commitment.
-		self.channel_monitor.provide_payment_preimage(&payment_hash_calc, &payment_preimage_arg);
+		self.latest_monitor_update_id += 1;
+		let monitor_update = ChannelMonitorUpdate {
+			update_id: self.latest_monitor_update_id,
+			updates: vec![ChannelMonitorUpdateStep::PaymentPreimage {
+				payment_preimage: payment_preimage_arg.clone(),
+			}],
+		};
+		self.channel_monitor.as_mut().unwrap().update_monitor_ooo(monitor_update.clone()).unwrap();
 
 		if (self.channel_state & (ChannelState::AwaitingRemoteRevoke as u32 | ChannelState::PeerDisconnected as u32 | ChannelState::MonitorUpdateFailed as u32)) != 0 {
 			for pending_update in self.holding_cell_htlc_updates.iter() {
 				match pending_update {
 					&HTLCUpdateAwaitingACK::ClaimHTLC { htlc_id, .. } => {
 						if htlc_id_arg == htlc_id {
+							// Make sure we don't leave latest_monitor_update_id incremented here:
+							self.latest_monitor_update_id -= 1;
+							debug_assert!(false, "Tried to fulfill an HTLC that was already fulfilled");
 							return Ok((None, None));
 						}
 					},
@@ -1180,7 +1215,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 							log_warn!(self, "Have preimage and want to fulfill HTLC with pending failure against channel {}", log_bytes!(self.channel_id()));
 							// TODO: We may actually be able to switch to a fulfill here, though its
 							// rare enough it may not be worth the complexity burden.
-							return Ok((None, Some(self.channel_monitor.clone())));
+							debug_assert!(false, "Tried to fulfill an HTLC that was already failed");
+							return Ok((None, Some(monitor_update)));
 						}
 					},
 					_ => {}
@@ -1190,7 +1226,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			self.holding_cell_htlc_updates.push(HTLCUpdateAwaitingACK::ClaimHTLC {
 				payment_preimage: payment_preimage_arg, htlc_id: htlc_id_arg,
 			});
-			return Ok((None, Some(self.channel_monitor.clone())));
+			return Ok((None, Some(monitor_update)));
 		}
 
 		{
@@ -1198,7 +1234,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			if let InboundHTLCState::Committed = htlc.state {
 			} else {
 				debug_assert!(false, "Have an inbound HTLC we tried to claim before it was fully committed to");
-				return Ok((None, Some(self.channel_monitor.clone())));
+				return Ok((None, Some(monitor_update)));
 			}
 			log_trace!(self, "Upgrading HTLC {} to LocalRemoved with a Fulfill!", log_bytes!(htlc.payment_hash.0));
 			htlc.state = InboundHTLCState::LocalRemoved(InboundHTLCRemovalReason::Fulfill(payment_preimage_arg.clone()));
@@ -1208,23 +1244,34 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			channel_id: self.channel_id(),
 			htlc_id: htlc_id_arg,
 			payment_preimage: payment_preimage_arg,
-		}), Some(self.channel_monitor.clone())))
+		}), Some(monitor_update)))
 	}
 
-	pub fn get_update_fulfill_htlc_and_commit(&mut self, htlc_id: u64, payment_preimage: PaymentPreimage) -> Result<(Option<(msgs::UpdateFulfillHTLC, msgs::CommitmentSigned)>, Option<ChannelMonitor>), ChannelError> {
+	pub fn get_update_fulfill_htlc_and_commit(&mut self, htlc_id: u64, payment_preimage: PaymentPreimage) -> Result<(Option<(msgs::UpdateFulfillHTLC, msgs::CommitmentSigned)>, Option<ChannelMonitorUpdate>), ChannelError> {
 		match self.get_update_fulfill_htlc(htlc_id, payment_preimage)? {
-			(Some(update_fulfill_htlc), _) => {
+			(Some(update_fulfill_htlc), Some(mut monitor_update)) => {
+				let (commitment, mut additional_update) = self.send_commitment_no_status_check()?;
+				// send_commitment_no_status_check may bump latest_monitor_id but we want them to be
+				// strictly increasing by one, so decrement it here.
+				self.latest_monitor_update_id = monitor_update.update_id;
+				monitor_update.updates.append(&mut additional_update.updates);
+				Ok((Some((update_fulfill_htlc, commitment)), Some(monitor_update)))
+			},
+			(Some(update_fulfill_htlc), None) => {
 				let (commitment, monitor_update) = self.send_commitment_no_status_check()?;
 				Ok((Some((update_fulfill_htlc, commitment)), Some(monitor_update)))
 			},
-			(None, Some(channel_monitor)) => Ok((None, Some(channel_monitor))),
+			(None, Some(monitor_update)) => Ok((None, Some(monitor_update))),
 			(None, None) => Ok((None, None))
 		}
 	}
 
 	/// Per HTLC, only one get_update_fail_htlc or get_update_fulfill_htlc call may be made.
-	/// In such cases we debug_assert!(false) and return an IgnoreError. Thus, will always return
-	/// Ok(_) if debug assertions are turned on and preconditions are met.
+	/// In such cases we debug_assert!(false) and return a ChannelError::Ignore. Thus, will always
+	/// return Ok(_) if debug assertions are turned on or preconditions are met.
+	///
+	/// Note that it is still possible to hit these assertions in case we find a preimage on-chain
+	/// but then have a reorg which settles on an HTLC-failure on chain.
 	pub fn get_update_fail_htlc(&mut self, htlc_id_arg: u64, err_packet: msgs::OnionErrorPacket) -> Result<Option<msgs::UpdateFailHTLC>, ChannelError> {
 		if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
 			panic!("Was asked to fail an HTLC when channel was not in an operational state");
@@ -1241,6 +1288,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				match htlc.state {
 					InboundHTLCState::Committed => {},
 					InboundHTLCState::LocalRemoved(_) => {
+						debug_assert!(false, "Tried to fail an HTLC that was already fail/fulfilled");
 						return Ok(None);
 					},
 					_ => {
@@ -1261,11 +1309,13 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				match pending_update {
 					&HTLCUpdateAwaitingACK::ClaimHTLC { htlc_id, .. } => {
 						if htlc_id_arg == htlc_id {
+							debug_assert!(false, "Tried to fail an HTLC that was already fulfilled");
 							return Err(ChannelError::Ignore("Unable to find a pending HTLC which matched the given HTLC ID"));
 						}
 					},
 					&HTLCUpdateAwaitingACK::FailHTLC { htlc_id, .. } => {
 						if htlc_id_arg == htlc_id {
+							debug_assert!(false, "Tried to fail an HTLC that was already failed");
 							return Err(ChannelError::Ignore("Unable to find a pending HTLC which matched the given HTLC ID"));
 						}
 					},
@@ -1384,7 +1434,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let their_pubkeys = ChannelPublicKeys {
 			funding_pubkey: msg.funding_pubkey,
 			revocation_basepoint: msg.revocation_basepoint,
-			payment_basepoint: msg.payment_basepoint,
+			payment_point: msg.payment_point,
 			delayed_payment_basepoint: msg.delayed_payment_basepoint,
 			htlc_basepoint: msg.htlc_basepoint
 		};
@@ -1395,16 +1445,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		self.their_cur_commitment_point = Some(msg.first_per_commitment_point);
 		self.their_shutdown_scriptpubkey = their_shutdown_scriptpubkey;
 
-		let obscure_factor = self.get_commitment_transaction_number_obscure_factor();
-		let funding_redeemscript = self.get_funding_redeemscript();
-		self.channel_monitor.set_basic_channel_info(&msg.htlc_basepoint, &msg.delayed_payment_basepoint, msg.to_self_delay, funding_redeemscript, self.channel_value_satoshis, obscure_factor);
-
 		self.channel_state = ChannelState::OurInitSent as u32 | ChannelState::TheirInitSent as u32;
 
 		Ok(())
 	}
 
-	fn funding_created_signature(&mut self, sig: &Signature) -> Result<(Transaction, LocalCommitmentTransaction, Signature, TxCreationKeys), ChannelError> {
+	fn funding_created_signature(&mut self, sig: &Signature) -> Result<(Transaction, LocalCommitmentTransaction, Signature), ChannelError> {
 		let funding_script = self.get_funding_redeemscript();
 
 		let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number)?;
@@ -1412,24 +1458,25 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let local_sighash = hash_to_message!(&bip143::SighashComponents::new(&local_initial_commitment_tx).sighash_all(&local_initial_commitment_tx.input[0], &funding_script, self.channel_value_satoshis)[..]);
 
 		// They sign the "local" commitment transaction...
+		log_trace!(self, "Checking funding_created tx signature {} by key {} against tx {} (sighash {}) with redeemscript {}", log_bytes!(sig.serialize_compact()[..]), log_bytes!(self.their_funding_pubkey().serialize()), encode::serialize_hex(&local_initial_commitment_tx), log_bytes!(local_sighash[..]), encode::serialize_hex(&funding_script));
 		secp_check!(self.secp_ctx.verify(&local_sighash, &sig, self.their_funding_pubkey()), "Invalid funding_created signature from peer");
 
-		let localtx = LocalCommitmentTransaction::new_missing_local_sig(local_initial_commitment_tx, sig, &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), self.their_funding_pubkey());
+		let localtx = LocalCommitmentTransaction::new_missing_local_sig(local_initial_commitment_tx, sig.clone(), &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), self.their_funding_pubkey(), local_keys, self.feerate_per_kw, Vec::new());
 
 		let remote_keys = self.build_remote_transaction_keys()?;
 		let remote_initial_commitment_tx = self.build_commitment_transaction(self.cur_remote_commitment_transaction_number, &remote_keys, false, false, self.feerate_per_kw).0;
-		let remote_signature = self.local_keys.sign_remote_commitment(self.channel_value_satoshis, self.feerate_per_kw, &remote_initial_commitment_tx, &remote_keys, &Vec::new(), self.our_to_self_delay, &self.secp_ctx)
+		let remote_signature = self.local_keys.sign_remote_commitment(self.feerate_per_kw, &remote_initial_commitment_tx, &remote_keys, &Vec::new(), self.our_to_self_delay, &self.secp_ctx)
 				.map_err(|_| ChannelError::Close("Failed to get signatures for new commitment_signed"))?.0;
 
 		// We sign the "remote" commitment transaction, allowing them to broadcast the tx if they wish.
-		Ok((remote_initial_commitment_tx, localtx, remote_signature, local_keys))
+		Ok((remote_initial_commitment_tx, localtx, remote_signature))
 	}
 
 	fn their_funding_pubkey(&self) -> &PublicKey {
 		&self.their_pubkeys.as_ref().expect("their_funding_pubkey() only allowed after accept_channel").funding_pubkey
 	}
 
-	pub fn funding_created(&mut self, msg: &msgs::FundingCreated) -> Result<(msgs::FundingSigned, ChannelMonitor), ChannelError> {
+	pub fn funding_created(&mut self, msg: &msgs::FundingCreated) -> Result<(msgs::FundingSigned, ChannelMonitor<ChanSigner>), ChannelError> {
 		if self.channel_outbound {
 			return Err(ChannelError::Close("Received funding_created for an outbound channel?"));
 		}
@@ -1439,28 +1486,47 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			// channel.
 			return Err(ChannelError::Close("Received funding_created after we got the channel!"));
 		}
-		if self.channel_monitor.get_min_seen_secret() != (1 << 48) ||
+		if self.commitment_secrets.get_min_seen_secret() != (1 << 48) ||
 				self.cur_remote_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
 				self.cur_local_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
 			panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
 		}
 
 		let funding_txo = OutPoint::new(msg.funding_txid, msg.funding_output_index);
-		let funding_txo_script = self.get_funding_redeemscript().to_v0_p2wsh();
-		self.channel_monitor.set_funding_info((funding_txo, funding_txo_script));
+		self.funding_txo = Some(funding_txo.clone());
 
-		let (remote_initial_commitment_tx, local_initial_commitment_tx, our_signature, local_keys) = match self.funding_created_signature(&msg.signature) {
+		let (remote_initial_commitment_tx, local_initial_commitment_tx, our_signature) = match self.funding_created_signature(&msg.signature) {
 			Ok(res) => res,
 			Err(e) => {
-				self.channel_monitor.unset_funding_info();
+				self.funding_txo = None;
 				return Err(e);
 			}
 		};
 
 		// Now that we're past error-generating stuff, update our local state:
 
-		self.channel_monitor.provide_latest_remote_commitment_tx_info(&remote_initial_commitment_tx, Vec::new(), self.cur_remote_commitment_transaction_number, self.their_cur_commitment_point.unwrap());
-		self.channel_monitor.provide_latest_local_commitment_tx_info(local_initial_commitment_tx, local_keys, self.feerate_per_kw, Vec::new());
+		let their_pubkeys = self.their_pubkeys.as_ref().unwrap();
+		let funding_redeemscript = self.get_funding_redeemscript();
+		let funding_txo_script = funding_redeemscript.to_v0_p2wsh();
+		macro_rules! create_monitor {
+			() => { {
+				let mut channel_monitor = ChannelMonitor::new(self.local_keys.clone(),
+				                                              &self.shutdown_pubkey, self.our_to_self_delay,
+				                                              &self.destination_script, (funding_txo, funding_txo_script.clone()),
+				                                              &their_pubkeys.htlc_basepoint, &their_pubkeys.delayed_payment_basepoint,
+				                                              self.their_to_self_delay, funding_redeemscript.clone(), self.channel_value_satoshis,
+				                                              self.get_commitment_transaction_number_obscure_factor(),
+				                                              local_initial_commitment_tx.clone(),
+				                                              self.logger.clone());
+
+				channel_monitor.provide_latest_remote_commitment_tx_info(&remote_initial_commitment_tx, Vec::new(), self.cur_remote_commitment_transaction_number, self.their_cur_commitment_point.unwrap());
+				channel_monitor
+			} }
+		}
+
+		self.channel_monitor = Some(create_monitor!());
+		let channel_monitor = create_monitor!();
+
 		self.channel_state = ChannelState::FundingSent as u32;
 		self.channel_id = funding_txo.to_channel_id();
 		self.cur_remote_commitment_transaction_number -= 1;
@@ -1469,26 +1535,29 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		Ok((msgs::FundingSigned {
 			channel_id: self.channel_id,
 			signature: our_signature
-		}, self.channel_monitor.clone()))
+		}, channel_monitor))
 	}
 
 	/// Handles a funding_signed message from the remote end.
 	/// If this call is successful, broadcast the funding transaction (and not before!)
-	pub fn funding_signed(&mut self, msg: &msgs::FundingSigned) -> Result<ChannelMonitor, ChannelError> {
+	pub fn funding_signed(&mut self, msg: &msgs::FundingSigned) -> Result<ChannelMonitor<ChanSigner>, ChannelError> {
 		if !self.channel_outbound {
 			return Err(ChannelError::Close("Received funding_signed for an inbound channel?"));
 		}
 		if self.channel_state & !(ChannelState::MonitorUpdateFailed as u32) != ChannelState::FundingCreated as u32 {
 			return Err(ChannelError::Close("Received funding_signed in strange state!"));
 		}
-		if self.channel_monitor.get_min_seen_secret() != (1 << 48) ||
-				self.cur_remote_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER - 1 ||
+		if self.commitment_secrets.get_min_seen_secret() != (1 << 48) ||
+				self.cur_remote_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
 				self.cur_local_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
 			panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
 		}
 
 		let funding_script = self.get_funding_redeemscript();
 
+		let remote_keys = self.build_remote_transaction_keys()?;
+		let remote_initial_commitment_tx = self.build_commitment_transaction(self.cur_remote_commitment_transaction_number, &remote_keys, false, false, self.feerate_per_kw).0;
+
 		let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number)?;
 		let local_initial_commitment_tx = self.build_commitment_transaction(self.cur_local_commitment_transaction_number, &local_keys, true, false, self.feerate_per_kw).0;
 		let local_sighash = hash_to_message!(&bip143::SighashComponents::new(&local_initial_commitment_tx).sighash_all(&local_initial_commitment_tx.input[0], &funding_script, self.channel_value_satoshis)[..]);
@@ -1496,19 +1565,41 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let their_funding_pubkey = &self.their_pubkeys.as_ref().unwrap().funding_pubkey;
 
 		// They sign the "local" commitment transaction, allowing us to broadcast the tx if we wish.
-		secp_check!(self.secp_ctx.verify(&local_sighash, &msg.signature, their_funding_pubkey), "Invalid funding_signed signature from peer");
+		if let Err(_) = self.secp_ctx.verify(&local_sighash, &msg.signature, their_funding_pubkey) {
+			return Err(ChannelError::Close("Invalid funding_signed signature from peer"));
+		}
 
-		self.channel_monitor.provide_latest_local_commitment_tx_info(
-			LocalCommitmentTransaction::new_missing_local_sig(local_initial_commitment_tx, &msg.signature, &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), their_funding_pubkey),
-			local_keys, self.feerate_per_kw, Vec::new());
-		self.channel_state = ChannelState::FundingSent as u32 | (self.channel_state & (ChannelState::MonitorUpdateFailed as u32));
+		let their_pubkeys = self.their_pubkeys.as_ref().unwrap();
+		let funding_redeemscript = self.get_funding_redeemscript();
+		let funding_txo = self.funding_txo.as_ref().unwrap();
+		let funding_txo_script = funding_redeemscript.to_v0_p2wsh();
+		macro_rules! create_monitor {
+			() => { {
+				let local_commitment_tx = LocalCommitmentTransaction::new_missing_local_sig(local_initial_commitment_tx.clone(), msg.signature.clone(), &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), their_funding_pubkey, local_keys.clone(), self.feerate_per_kw, Vec::new());
+				let mut channel_monitor = ChannelMonitor::new(self.local_keys.clone(),
+				                                              &self.shutdown_pubkey, self.our_to_self_delay,
+				                                              &self.destination_script, (funding_txo.clone(), funding_txo_script.clone()),
+				                                              &their_pubkeys.htlc_basepoint, &their_pubkeys.delayed_payment_basepoint,
+				                                              self.their_to_self_delay, funding_redeemscript.clone(), self.channel_value_satoshis,
+				                                              self.get_commitment_transaction_number_obscure_factor(),
+				                                              local_commitment_tx,
+				                                              self.logger.clone());
+
+				channel_monitor.provide_latest_remote_commitment_tx_info(&remote_initial_commitment_tx, Vec::new(), self.cur_remote_commitment_transaction_number, self.their_cur_commitment_point.unwrap());
+
+				channel_monitor
+			} }
+		}
+
+		self.channel_monitor = Some(create_monitor!());
+		let channel_monitor = create_monitor!();
+
+		assert_eq!(self.channel_state & (ChannelState::MonitorUpdateFailed as u32), 0); // We have no had any monitor(s) yet to fail update!
+		self.channel_state = ChannelState::FundingSent as u32;
 		self.cur_local_commitment_transaction_number -= 1;
+		self.cur_remote_commitment_transaction_number -= 1;
 
-		if self.channel_state & (ChannelState::MonitorUpdateFailed as u32) == 0 {
-			Ok(self.channel_monitor.clone())
-		} else {
-			Err(ChannelError::Ignore("Previous monitor update failure prevented funding_signed from allowing funding broadcast"))
-		}
+		Ok(channel_monitor)
 	}
 
 	pub fn funding_locked(&mut self, msg: &msgs::FundingLocked) -> Result<(), ChannelError> {
@@ -1522,7 +1613,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			self.channel_state |= ChannelState::TheirFundingLocked as u32;
 		} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::OurFundingLocked as u32) {
 			self.channel_state = ChannelState::ChannelFunded as u32 | (self.channel_state & MULTI_STATE_FLAGS);
-			self.channel_update_count += 1;
+			self.update_time_counter += 1;
 		} else if (self.channel_state & (ChannelState::ChannelFunded as u32) != 0 &&
 				 // Note that funding_signed/funding_created will have decremented both by 1!
 				 self.cur_local_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 &&
@@ -1592,6 +1683,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		if msg.amount_msat > self.channel_value_satoshis * 1000 {
 			return Err(ChannelError::Close("Remote side tried to send more than the total value of the channel"));
 		}
+		if msg.amount_msat == 0 {
+			return Err(ChannelError::Close("Remote side tried to send a 0-msat HTLC"));
+		}
 		if msg.amount_msat < self.our_htlc_minimum_msat {
 			return Err(ChannelError::Close("Remote side tried to send less than our minimum HTLC value"));
 		}
@@ -1634,8 +1728,6 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Remote provided CLTV expiry in seconds instead of block height"));
 		}
 
-		//TODO: Check msg.cltv_expiry further? Do this in channel manager?
-
 		if self.channel_state & ChannelState::LocalShutdownSent as u32 != 0 {
 			if let PendingHTLCStatus::Forward(_) = pending_forward_state {
 				panic!("ChannelManager shouldn't be trying to add a forwardable HTLC after we've started closing");
@@ -1717,20 +1809,20 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		Ok(())
 	}
 
-	pub fn commitment_signed(&mut self, msg: &msgs::CommitmentSigned, fee_estimator: &FeeEstimator) -> Result<(msgs::RevokeAndACK, Option<msgs::CommitmentSigned>, Option<msgs::ClosingSigned>, ChannelMonitor), ChannelError> {
+	pub fn commitment_signed<F: Deref>(&mut self, msg: &msgs::CommitmentSigned, fee_estimator: &F) -> Result<(msgs::RevokeAndACK, Option<msgs::CommitmentSigned>, Option<msgs::ClosingSigned>, ChannelMonitorUpdate), (Option<ChannelMonitorUpdate>, ChannelError)> where F::Target: FeeEstimator {
 		if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
-			return Err(ChannelError::Close("Got commitment signed message when channel was not in an operational state"));
+			return Err((None, ChannelError::Close("Got commitment signed message when channel was not in an operational state")));
 		}
 		if self.channel_state & (ChannelState::PeerDisconnected as u32) == ChannelState::PeerDisconnected as u32 {
-			return Err(ChannelError::Close("Peer sent commitment_signed when we needed a channel_reestablish"));
+			return Err((None, ChannelError::Close("Peer sent commitment_signed when we needed a channel_reestablish")));
 		}
 		if self.channel_state & BOTH_SIDES_SHUTDOWN_MASK == BOTH_SIDES_SHUTDOWN_MASK && self.last_sent_closing_fee.is_some() {
-			return Err(ChannelError::Close("Peer sent commitment_signed after we'd started exchanging closing_signeds"));
+			return Err((None, ChannelError::Close("Peer sent commitment_signed after we'd started exchanging closing_signeds")));
 		}
 
 		let funding_script = self.get_funding_redeemscript();
 
-		let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number)?;
+		let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number).map_err(|e| (None, e))?;
 
 		let mut update_fee = false;
 		let feerate_per_kw = if !self.channel_outbound && self.pending_update_fee.is_some() {
@@ -1747,8 +1839,10 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		};
 		let local_commitment_txid = local_commitment_tx.0.txid();
 		let local_sighash = hash_to_message!(&bip143::SighashComponents::new(&local_commitment_tx.0).sighash_all(&local_commitment_tx.0.input[0], &funding_script, self.channel_value_satoshis)[..]);
-		log_trace!(self, "Checking commitment tx signature {} by key {} against tx {} with redeemscript {}", log_bytes!(msg.signature.serialize_compact()[..]), log_bytes!(self.their_funding_pubkey().serialize()), encode::serialize_hex(&local_commitment_tx.0), encode::serialize_hex(&funding_script));
-		secp_check!(self.secp_ctx.verify(&local_sighash, &msg.signature, &self.their_funding_pubkey()), "Invalid commitment tx signature from peer");
+		log_trace!(self, "Checking commitment tx signature {} by key {} against tx {} (sighash {}) with redeemscript {}", log_bytes!(msg.signature.serialize_compact()[..]), log_bytes!(self.their_funding_pubkey().serialize()), encode::serialize_hex(&local_commitment_tx.0), log_bytes!(local_sighash[..]), encode::serialize_hex(&funding_script));
+		if let Err(_) = self.secp_ctx.verify(&local_sighash, &msg.signature, &self.their_funding_pubkey()) {
+			return Err((None, ChannelError::Close("Invalid commitment tx signature from peer")));
+		}
 
 		//If channel fee was updated by funder confirm funder can afford the new fee rate when applied to the current local commitment transaction
 		if update_fee {
@@ -1756,24 +1850,31 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			let total_fee: u64 = feerate_per_kw as u64 * (COMMITMENT_TX_BASE_WEIGHT + (num_htlcs as u64) * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000;
 
 			if self.channel_value_satoshis - self.value_to_self_msat / 1000 < total_fee + self.their_channel_reserve_satoshis {
-				return Err(ChannelError::Close("Funding remote cannot afford proposed new fee"));
+				return Err((None, ChannelError::Close("Funding remote cannot afford proposed new fee")));
 			}
 		}
 
 		if msg.htlc_signatures.len() != local_commitment_tx.1 {
-			return Err(ChannelError::Close("Got wrong number of HTLC signatures from remote"));
+			return Err((None, ChannelError::Close("Got wrong number of HTLC signatures from remote")));
 		}
 
+		// TODO: Merge these two, sadly they are currently both required to be passed separately to
+		// ChannelMonitor:
+		let mut htlcs_without_source = Vec::with_capacity(local_commitment_tx.2.len());
 		let mut htlcs_and_sigs = Vec::with_capacity(local_commitment_tx.2.len());
 		for (idx, (htlc, source)) in local_commitment_tx.2.drain(..).enumerate() {
 			if let Some(_) = htlc.transaction_output_index {
 				let htlc_tx = self.build_htlc_transaction(&local_commitment_txid, &htlc, true, &local_keys, feerate_per_kw);
 				let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&htlc, &local_keys);
-				log_trace!(self, "Checking HTLC tx signature {} by key {} against tx {} with redeemscript {}", log_bytes!(msg.htlc_signatures[idx].serialize_compact()[..]), log_bytes!(local_keys.b_htlc_key.serialize()), encode::serialize_hex(&htlc_tx), encode::serialize_hex(&htlc_redeemscript));
 				let htlc_sighash = hash_to_message!(&bip143::SighashComponents::new(&htlc_tx).sighash_all(&htlc_tx.input[0], &htlc_redeemscript, htlc.amount_msat / 1000)[..]);
-				secp_check!(self.secp_ctx.verify(&htlc_sighash, &msg.htlc_signatures[idx], &local_keys.b_htlc_key), "Invalid HTLC tx signature from peer");
+				log_trace!(self, "Checking HTLC tx signature {} by key {} against tx {} (sighash {}) with redeemscript {}", log_bytes!(msg.htlc_signatures[idx].serialize_compact()[..]), log_bytes!(local_keys.b_htlc_key.serialize()), encode::serialize_hex(&htlc_tx), log_bytes!(htlc_sighash[..]), encode::serialize_hex(&htlc_redeemscript));
+				if let Err(_) = self.secp_ctx.verify(&htlc_sighash, &msg.htlc_signatures[idx], &local_keys.b_htlc_key) {
+					return Err((None, ChannelError::Close("Invalid HTLC tx signature from peer")));
+				}
+				htlcs_without_source.push((htlc.clone(), Some(msg.htlc_signatures[idx])));
 				htlcs_and_sigs.push((htlc, Some(msg.htlc_signatures[idx]), source));
 			} else {
+				htlcs_without_source.push((htlc.clone(), None));
 				htlcs_and_sigs.push((htlc, None, source));
 			}
 		}
@@ -1798,9 +1899,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		let their_funding_pubkey = self.their_pubkeys.as_ref().unwrap().funding_pubkey;
 
-		self.channel_monitor.provide_latest_local_commitment_tx_info(
-			LocalCommitmentTransaction::new_missing_local_sig(local_commitment_tx.0, &msg.signature, &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), &their_funding_pubkey),
-			local_keys, self.feerate_per_kw, htlcs_and_sigs);
+		self.latest_monitor_update_id += 1;
+		let mut monitor_update = ChannelMonitorUpdate {
+			update_id: self.latest_monitor_update_id,
+			updates: vec![ChannelMonitorUpdateStep::LatestLocalCommitmentTXInfo {
+				commitment_tx: LocalCommitmentTransaction::new_missing_local_sig(local_commitment_tx.0, msg.signature.clone(), &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), &their_funding_pubkey, local_keys, self.feerate_per_kw, htlcs_without_source),
+				htlc_outputs: htlcs_and_sigs
+			}]
+		};
+		self.channel_monitor.as_mut().unwrap().update_monitor_ooo(monitor_update.clone()).unwrap();
 
 		for htlc in self.pending_inbound_htlcs.iter_mut() {
 			let new_forward = if let &InboundHTLCState::RemoteAnnounced(ref forward_info) = &htlc.state {
@@ -1833,26 +1940,31 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				// If we were going to send a commitment_signed after the RAA, go ahead and do all
 				// the corresponding HTLC status updates so that get_last_commitment_update
 				// includes the right HTLCs.
-				// Note that this generates a monitor update that we ignore! This is OK since we
-				// won't actually send the commitment_signed that generated the update to the other
-				// side until the latest monitor has been pulled from us and stored.
 				self.monitor_pending_commitment_signed = true;
-				self.send_commitment_no_status_check()?;
+				let (_, mut additional_update) = self.send_commitment_no_status_check().map_err(|e| (None, e))?;
+				// send_commitment_no_status_check may bump latest_monitor_id but we want them to be
+				// strictly increasing by one, so decrement it here.
+				self.latest_monitor_update_id = monitor_update.update_id;
+				monitor_update.updates.append(&mut additional_update.updates);
 			}
 			// TODO: Call maybe_propose_first_closing_signed on restoration (or call it here and
 			// re-send the message on restoration)
-			return Err(ChannelError::Ignore("Previous monitor update failure prevented generation of RAA"));
+			return Err((Some(monitor_update), ChannelError::Ignore("Previous monitor update failure prevented generation of RAA")));
 		}
 
-		let (our_commitment_signed, monitor_update, closing_signed) = if need_our_commitment && (self.channel_state & (ChannelState::AwaitingRemoteRevoke as u32)) == 0 {
+		let (our_commitment_signed, closing_signed) = if need_our_commitment && (self.channel_state & (ChannelState::AwaitingRemoteRevoke as u32)) == 0 {
 			// If we're AwaitingRemoteRevoke we can't send a new commitment here, but that's ok -
 			// we'll send one right away when we get the revoke_and_ack when we
 			// free_holding_cell_htlcs().
-			let (msg, monitor) = self.send_commitment_no_status_check()?;
-			(Some(msg), monitor, None)
+			let (msg, mut additional_update) = self.send_commitment_no_status_check().map_err(|e| (None, e))?;
+			// send_commitment_no_status_check may bump latest_monitor_id but we want them to be
+			// strictly increasing by one, so decrement it here.
+			self.latest_monitor_update_id = monitor_update.update_id;
+			monitor_update.updates.append(&mut additional_update.updates);
+			(Some(msg), None)
 		} else if !need_our_commitment {
-			(None, self.channel_monitor.clone(), self.maybe_propose_first_closing_signed(fee_estimator))
-		} else { (None, self.channel_monitor.clone(), None) };
+			(None, self.maybe_propose_first_closing_signed(fee_estimator))
+		} else { (None, None) };
 
 		Ok((msgs::RevokeAndACK {
 			channel_id: self.channel_id,
@@ -1863,11 +1975,16 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	/// Used to fulfill holding_cell_htlcs when we get a remote ack (or implicitly get it by them
 	/// fulfilling or failing the last pending HTLC)
-	fn free_holding_cell_htlcs(&mut self) -> Result<Option<(msgs::CommitmentUpdate, ChannelMonitor)>, ChannelError> {
+	fn free_holding_cell_htlcs(&mut self) -> Result<Option<(msgs::CommitmentUpdate, ChannelMonitorUpdate)>, ChannelError> {
 		assert_eq!(self.channel_state & ChannelState::MonitorUpdateFailed as u32, 0);
 		if self.holding_cell_htlc_updates.len() != 0 || self.holding_cell_update_fee.is_some() {
 			log_trace!(self, "Freeing holding cell with {} HTLC updates{}", self.holding_cell_htlc_updates.len(), if self.holding_cell_update_fee.is_some() { " and a fee update" } else { "" });
 
+			let mut monitor_update = ChannelMonitorUpdate {
+				update_id: self.latest_monitor_update_id + 1, // We don't increment this yet!
+				updates: Vec::new(),
+			};
+
 			let mut htlc_updates = Vec::new();
 			mem::swap(&mut htlc_updates, &mut self.holding_cell_htlc_updates);
 			let mut update_add_htlcs = Vec::with_capacity(htlc_updates.len());
@@ -1902,7 +2019,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 						},
 						&HTLCUpdateAwaitingACK::ClaimHTLC { ref payment_preimage, htlc_id, .. } => {
 							match self.get_update_fulfill_htlc(htlc_id, *payment_preimage) {
-								Ok(update_fulfill_msg_option) => update_fulfill_htlcs.push(update_fulfill_msg_option.0.unwrap()),
+								Ok((update_fulfill_msg_option, additional_monitor_update_opt)) => {
+									update_fulfill_htlcs.push(update_fulfill_msg_option.unwrap());
+									if let Some(mut additional_monitor_update) = additional_monitor_update_opt {
+										monitor_update.updates.append(&mut additional_monitor_update.updates);
+									}
+								},
 								Err(e) => {
 									if let ChannelError::Ignore(_) = e {}
 									else {
@@ -1952,7 +2074,13 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 						} else {
 							None
 						};
-					let (commitment_signed, monitor_update) = self.send_commitment_no_status_check()?;
+
+					let (commitment_signed, mut additional_update) = self.send_commitment_no_status_check()?;
+					// send_commitment_no_status_check and get_update_fulfill_htlc may bump latest_monitor_id
+					// but we want them to be strictly increasing by one, so reset it here.
+					self.latest_monitor_update_id = monitor_update.update_id;
+					monitor_update.updates.append(&mut additional_update.updates);
+
 					Ok(Some((msgs::CommitmentUpdate {
 						update_add_htlcs,
 						update_fulfill_htlcs,
@@ -1974,7 +2102,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// waiting on this revoke_and_ack. The generation of this new commitment_signed may also fail,
 	/// generating an appropriate error *after* the channel state has been updated based on the
 	/// revoke_and_ack message.
-	pub fn revoke_and_ack(&mut self, msg: &msgs::RevokeAndACK, fee_estimator: &FeeEstimator) -> Result<(Option<msgs::CommitmentUpdate>, Vec<(PendingForwardHTLCInfo, u64)>, Vec<(HTLCSource, PaymentHash, HTLCFailReason)>, Option<msgs::ClosingSigned>, ChannelMonitor), ChannelError> {
+	pub fn revoke_and_ack<F: Deref>(&mut self, msg: &msgs::RevokeAndACK, fee_estimator: &F) -> Result<(Option<msgs::CommitmentUpdate>, Vec<(PendingHTLCInfo, u64)>, Vec<(HTLCSource, PaymentHash, HTLCFailReason)>, Option<msgs::ClosingSigned>, ChannelMonitorUpdate), ChannelError>
+		where F::Target: FeeEstimator
+	{
 		if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
 			return Err(ChannelError::Close("Got revoke/ACK message when channel was not in an operational state"));
 		}
@@ -1990,8 +2120,29 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				return Err(ChannelError::Close("Got a revoke commitment secret which didn't correspond to their current pubkey"));
 			}
 		}
-		self.channel_monitor.provide_secret(self.cur_remote_commitment_transaction_number + 1, msg.per_commitment_secret)
-			.map_err(|e| ChannelError::Close(e.0))?;
+
+		if self.channel_state & ChannelState::AwaitingRemoteRevoke as u32 == 0 {
+			// Our counterparty seems to have burned their coins to us (by revoking a state when we
+			// haven't given them a new commitment transaction to broadcast). We should probably
+			// take advantage of this by updating our channel monitor, sending them an error, and
+			// waiting for them to broadcast their latest (now-revoked claim). But, that would be a
+			// lot of work, and there's some chance this is all a misunderstanding anyway.
+			// We have to do *something*, though, since our signer may get mad at us for otherwise
+			// jumping a remote commitment number, so best to just force-close and move on.
+			return Err(ChannelError::Close("Received an unexpected revoke_and_ack"));
+		}
+
+		self.commitment_secrets.provide_secret(self.cur_remote_commitment_transaction_number + 1, msg.per_commitment_secret)
+			.map_err(|_| ChannelError::Close("Previous secrets did not match new one"))?;
+		self.latest_monitor_update_id += 1;
+		let mut monitor_update = ChannelMonitorUpdate {
+			update_id: self.latest_monitor_update_id,
+			updates: vec![ChannelMonitorUpdateStep::CommitmentSecret {
+				idx: self.cur_remote_commitment_transaction_number + 1,
+				secret: msg.per_commitment_secret,
+			}],
+		};
+		self.channel_monitor.as_mut().unwrap().update_monitor_ooo(monitor_update.clone()).unwrap();
 
 		// Update state now that we've passed all the can-fail calls...
 		// (note that we may still fail to generate the new commitment_signed message, but that's
@@ -2118,28 +2269,44 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				// When the monitor updating is restored we'll call get_last_commitment_update(),
 				// which does not update state, but we're definitely now awaiting a remote revoke
 				// before we can step forward any more, so set it here.
-				self.send_commitment_no_status_check()?;
+				let (_, mut additional_update) = self.send_commitment_no_status_check()?;
+				// send_commitment_no_status_check may bump latest_monitor_id but we want them to be
+				// strictly increasing by one, so decrement it here.
+				self.latest_monitor_update_id = monitor_update.update_id;
+				monitor_update.updates.append(&mut additional_update.updates);
 			}
 			self.monitor_pending_forwards.append(&mut to_forward_infos);
 			self.monitor_pending_failures.append(&mut revoked_htlcs);
-			return Ok((None, Vec::new(), Vec::new(), None, self.channel_monitor.clone()));
+			return Ok((None, Vec::new(), Vec::new(), None, monitor_update))
 		}
 
 		match self.free_holding_cell_htlcs()? {
-			Some(mut commitment_update) => {
-				commitment_update.0.update_fail_htlcs.reserve(update_fail_htlcs.len());
+			Some((mut commitment_update, mut additional_update)) => {
+				commitment_update.update_fail_htlcs.reserve(update_fail_htlcs.len());
 				for fail_msg in update_fail_htlcs.drain(..) {
-					commitment_update.0.update_fail_htlcs.push(fail_msg);
+					commitment_update.update_fail_htlcs.push(fail_msg);
 				}
-				commitment_update.0.update_fail_malformed_htlcs.reserve(update_fail_malformed_htlcs.len());
+				commitment_update.update_fail_malformed_htlcs.reserve(update_fail_malformed_htlcs.len());
 				for fail_msg in update_fail_malformed_htlcs.drain(..) {
-					commitment_update.0.update_fail_malformed_htlcs.push(fail_msg);
+					commitment_update.update_fail_malformed_htlcs.push(fail_msg);
 				}
-				Ok((Some(commitment_update.0), to_forward_infos, revoked_htlcs, None, commitment_update.1))
+
+				// free_holding_cell_htlcs may bump latest_monitor_id multiple times but we want them to be
+				// strictly increasing by one, so decrement it here.
+				self.latest_monitor_update_id = monitor_update.update_id;
+				monitor_update.updates.append(&mut additional_update.updates);
+
+				Ok((Some(commitment_update), to_forward_infos, revoked_htlcs, None, monitor_update))
 			},
 			None => {
 				if require_commitment {
-					let (commitment_signed, monitor_update) = self.send_commitment_no_status_check()?;
+					let (commitment_signed, mut additional_update) = self.send_commitment_no_status_check()?;
+
+					// send_commitment_no_status_check may bump latest_monitor_id but we want them to be
+					// strictly increasing by one, so decrement it here.
+					self.latest_monitor_update_id = monitor_update.update_id;
+					monitor_update.updates.append(&mut additional_update.updates);
+
 					Ok((Some(msgs::CommitmentUpdate {
 						update_add_htlcs: Vec::new(),
 						update_fulfill_htlcs: Vec::new(),
@@ -2149,7 +2316,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 						commitment_signed
 					}), to_forward_infos, revoked_htlcs, None, monitor_update))
 				} else {
-					Ok((None, to_forward_infos, revoked_htlcs, self.maybe_propose_first_closing_signed(fee_estimator), self.channel_monitor.clone()))
+					Ok((None, to_forward_infos, revoked_htlcs, self.maybe_propose_first_closing_signed(fee_estimator), monitor_update))
 				}
 			}
 		}
@@ -2184,7 +2351,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		})
 	}
 
-	pub fn send_update_fee_and_commit(&mut self, feerate_per_kw: u64) -> Result<Option<(msgs::UpdateFee, msgs::CommitmentSigned, ChannelMonitor)>, ChannelError> {
+	pub fn send_update_fee_and_commit(&mut self, feerate_per_kw: u64) -> Result<Option<(msgs::UpdateFee, msgs::CommitmentSigned, ChannelMonitorUpdate)>, ChannelError> {
 		match self.send_update_fee(feerate_per_kw) {
 			Some(update_fee) => {
 				let (commitment_signed, monitor_update) = self.send_commitment_no_status_check()?;
@@ -2269,7 +2436,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// which failed. The messages which were generated from that call which generated the
 	/// monitor update failure must *not* have been sent to the remote end, and must instead
 	/// have been dropped. They will be regenerated when monitor_updating_restored is called.
-	pub fn monitor_update_failed(&mut self, resend_raa: bool, resend_commitment: bool, mut pending_forwards: Vec<(PendingForwardHTLCInfo, u64)>, mut pending_fails: Vec<(HTLCSource, PaymentHash, HTLCFailReason)>) {
+	pub fn monitor_update_failed(&mut self, resend_raa: bool, resend_commitment: bool, mut pending_forwards: Vec<(PendingHTLCInfo, u64)>, mut pending_fails: Vec<(HTLCSource, PaymentHash, HTLCFailReason)>) {
 		assert_eq!(self.channel_state & ChannelState::MonitorUpdateFailed as u32, 0);
 		self.monitor_pending_revoke_and_ack = resend_raa;
 		self.monitor_pending_commitment_signed = resend_commitment;
@@ -2283,7 +2450,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// Indicates that the latest ChannelMonitor update has been committed by the client
 	/// successfully and we should restore normal operation. Returns messages which should be sent
 	/// to the remote side.
-	pub fn monitor_updating_restored(&mut self) -> (Option<msgs::RevokeAndACK>, Option<msgs::CommitmentUpdate>, RAACommitmentOrder, Vec<(PendingForwardHTLCInfo, u64)>, Vec<(HTLCSource, PaymentHash, HTLCFailReason)>, bool, Option<msgs::FundingLocked>) {
+	pub fn monitor_updating_restored(&mut self) -> (Option<msgs::RevokeAndACK>, Option<msgs::CommitmentUpdate>, RAACommitmentOrder, Vec<(PendingHTLCInfo, u64)>, Vec<(HTLCSource, PaymentHash, HTLCFailReason)>, bool, Option<msgs::FundingLocked>) {
 		assert_eq!(self.channel_state & ChannelState::MonitorUpdateFailed as u32, ChannelState::MonitorUpdateFailed as u32);
 		self.channel_state &= !(ChannelState::MonitorUpdateFailed as u32);
 
@@ -2335,7 +2502,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		(raa, commitment_update, order, forwards, failures, needs_broadcast_safe, funding_locked)
 	}
 
-	pub fn update_fee(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::UpdateFee) -> Result<(), ChannelError> {
+	pub fn update_fee<F: Deref>(&mut self, fee_estimator: &F, msg: &msgs::UpdateFee) -> Result<(), ChannelError>
+		where F::Target: FeeEstimator
+	{
 		if self.channel_outbound {
 			return Err(ChannelError::Close("Non-funding remote tried to update channel fee"));
 		}
@@ -2344,7 +2513,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 		Channel::<ChanSigner>::check_remote_fee(fee_estimator, msg.feerate_per_kw)?;
 		self.pending_update_fee = Some(msg.feerate_per_kw as u64);
-		self.channel_update_count += 1;
+		self.update_time_counter += 1;
 		Ok(())
 	}
 
@@ -2417,7 +2586,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	/// May panic if some calls other than message-handling calls (which will all Err immediately)
 	/// have been called between remove_uncommitted_htlcs_and_mark_paused and this call.
-	pub fn channel_reestablish(&mut self, msg: &msgs::ChannelReestablish) -> Result<(Option<msgs::FundingLocked>, Option<msgs::RevokeAndACK>, Option<msgs::CommitmentUpdate>, Option<ChannelMonitor>, RAACommitmentOrder, Option<msgs::Shutdown>), ChannelError> {
+	pub fn channel_reestablish(&mut self, msg: &msgs::ChannelReestablish) -> Result<(Option<msgs::FundingLocked>, Option<msgs::RevokeAndACK>, Option<msgs::CommitmentUpdate>, Option<ChannelMonitorUpdate>, RAACommitmentOrder, Option<msgs::Shutdown>), ChannelError> {
 		if self.channel_state & (ChannelState::PeerDisconnected as u32) == 0 {
 			// While BOLT 2 doesn't indicate explicitly we should error this channel here, it
 			// almost certainly indicates we are going to end up out-of-sync in some way, so we
@@ -2437,9 +2606,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 						return Err(ChannelError::Close("Peer sent a garbage channel_reestablish with secret key not matching the commitment height provided"));
 					}
 					if msg.next_remote_commitment_number > INITIAL_COMMITMENT_NUMBER - self.cur_local_commitment_transaction_number {
-						self.channel_monitor.provide_rescue_remote_commitment_tx_info(data_loss.my_current_per_commitment_point);
-						return Err(ChannelError::CloseDelayBroadcast { msg: "We have fallen behind - we have received proof that if we broadcast remote is going to claim our funds - we can't do any automated broadcasting", update: Some(self.channel_monitor.clone())
-					});
+						return Err(ChannelError::CloseDelayBroadcast(
+							"We have fallen behind - we have received proof that if we broadcast remote is going to claim our funds - we can't do any automated broadcasting"
+						));
 					}
 				},
 				OptionalField::Absent => {}
@@ -2522,8 +2691,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				// now!
 				match self.free_holding_cell_htlcs() {
 					Err(ChannelError::Close(msg)) => return Err(ChannelError::Close(msg)),
-					Err(ChannelError::Ignore(_)) | Err(ChannelError::CloseDelayBroadcast { .. }) => panic!("Got non-channel-failing result from free_holding_cell_htlcs"),
-					Ok(Some((commitment_update, channel_monitor))) => return Ok((resend_funding_locked, required_revoke, Some(commitment_update), Some(channel_monitor), self.resend_order.clone(), shutdown_msg)),
+					Err(ChannelError::Ignore(_)) | Err(ChannelError::CloseDelayBroadcast(_)) => panic!("Got non-channel-failing result from free_holding_cell_htlcs"),
+					Ok(Some((commitment_update, monitor_update))) => return Ok((resend_funding_locked, required_revoke, Some(commitment_update), Some(monitor_update), self.resend_order.clone(), shutdown_msg)),
 					Ok(None) => return Ok((resend_funding_locked, required_revoke, None, None, self.resend_order.clone(), shutdown_msg)),
 				}
 			} else {
@@ -2547,7 +2716,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 	}
 
-	fn maybe_propose_first_closing_signed(&mut self, fee_estimator: &FeeEstimator) -> Option<msgs::ClosingSigned> {
+	fn maybe_propose_first_closing_signed<F: Deref>(&mut self, fee_estimator: &F) -> Option<msgs::ClosingSigned>
+		where F::Target: FeeEstimator
+	{
 		if !self.channel_outbound || !self.pending_inbound_htlcs.is_empty() || !self.pending_outbound_htlcs.is_empty() ||
 				self.channel_state & (BOTH_SIDES_SHUTDOWN_MASK | ChannelState::AwaitingRemoteRevoke as u32) != BOTH_SIDES_SHUTDOWN_MASK ||
 				self.last_sent_closing_fee.is_some() || self.pending_update_fee.is_some() {
@@ -2563,7 +2734,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		let (closing_tx, total_fee_satoshis) = self.build_closing_transaction(proposed_total_fee_satoshis, false);
 		let our_sig = self.local_keys
-			.sign_closing_transaction(self.channel_value_satoshis, &self.get_funding_redeemscript(), &closing_tx, &self.secp_ctx)
+			.sign_closing_transaction(&closing_tx, &self.secp_ctx)
 			.ok();
 		if our_sig.is_none() { return None; }
 
@@ -2575,7 +2746,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		})
 	}
 
-	pub fn shutdown(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::Shutdown) -> Result<(Option<msgs::Shutdown>, Option<msgs::ClosingSigned>, Vec<(HTLCSource, PaymentHash)>), ChannelError> {
+	pub fn shutdown<F: Deref>(&mut self, fee_estimator: &F, msg: &msgs::Shutdown) -> Result<(Option<msgs::Shutdown>, Option<msgs::ClosingSigned>, Vec<(HTLCSource, PaymentHash)>), ChannelError>
+		where F::Target: FeeEstimator
+	{
 		if self.channel_state & (ChannelState::PeerDisconnected as u32) == ChannelState::PeerDisconnected as u32 {
 			return Err(ChannelError::Close("Peer sent shutdown when we needed a channel_reestablish"));
 		}
@@ -2614,7 +2787,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		// From here on out, we may not fail!
 
 		self.channel_state |= ChannelState::RemoteShutdownSent as u32;
-		self.channel_update_count += 1;
+		self.update_time_counter += 1;
 
 		// We can't send our shutdown until we've committed all of our pending HTLCs, but the
 		// remote side is unlikely to accept any new HTLCs, so we go ahead and "free" any holding
@@ -2644,7 +2817,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		};
 
 		self.channel_state |= ChannelState::LocalShutdownSent as u32;
-		self.channel_update_count += 1;
+		self.update_time_counter += 1;
 
 		Ok((our_shutdown, self.maybe_propose_first_closing_signed(fee_estimator), dropped_outbound_htlcs))
 	}
@@ -2671,7 +2844,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		tx.input[0].witness.push(self.get_funding_redeemscript().into_bytes());
 	}
 
-	pub fn closing_signed(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::ClosingSigned) -> Result<(Option<msgs::ClosingSigned>, Option<Transaction>), ChannelError> {
+	pub fn closing_signed<F: Deref>(&mut self, fee_estimator: &F, msg: &msgs::ClosingSigned) -> Result<(Option<msgs::ClosingSigned>, Option<Transaction>), ChannelError>
+		where F::Target: FeeEstimator
+	{
 		if self.channel_state & BOTH_SIDES_SHUTDOWN_MASK != BOTH_SIDES_SHUTDOWN_MASK {
 			return Err(ChannelError::Close("Remote end sent us a closing_signed before both sides provided a shutdown"));
 		}
@@ -2709,7 +2884,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			if last_fee == msg.fee_satoshis {
 				self.build_signed_closing_transaction(&mut closing_tx, &msg.signature, &our_sig);
 				self.channel_state = ChannelState::ShutdownComplete as u32;
-				self.channel_update_count += 1;
+				self.update_time_counter += 1;
 				return Ok((None, Some(closing_tx)));
 			}
 		}
@@ -2719,7 +2894,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				let closing_tx_max_weight = Self::get_closing_transaction_weight(&self.get_closing_scriptpubkey(), self.their_shutdown_scriptpubkey.as_ref().unwrap());
 				let (closing_tx, used_total_fee) = self.build_closing_transaction($new_feerate * closing_tx_max_weight / 1000, false);
 				let our_sig = self.local_keys
-					.sign_closing_transaction(self.channel_value_satoshis, &funding_redeemscript, &closing_tx, &self.secp_ctx)
+					.sign_closing_transaction(&closing_tx, &self.secp_ctx)
 					.map_err(|_| ChannelError::Close("External signer refused to sign closing transaction"))?;
 				self.last_sent_closing_fee = Some(($new_feerate, used_total_fee, our_sig.clone()));
 				return Ok((Some(msgs::ClosingSigned {
@@ -2754,12 +2929,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 
 		let our_sig = self.local_keys
-			.sign_closing_transaction(self.channel_value_satoshis, &funding_redeemscript, &closing_tx, &self.secp_ctx)
+			.sign_closing_transaction(&closing_tx, &self.secp_ctx)
 			.map_err(|_| ChannelError::Close("External signer refused to sign closing transaction"))?;
 		self.build_signed_closing_transaction(&mut closing_tx, &msg.signature, &our_sig);
 
 		self.channel_state = ChannelState::ShutdownComplete as u32;
-		self.channel_update_count += 1;
+		self.update_time_counter += 1;
 
 		Ok((Some(msgs::ClosingSigned {
 			channel_id: self.channel_id,
@@ -2781,11 +2956,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	}
 
 	/// May only be called after funding has been initiated (ie is_funding_initiated() is true)
-	pub fn channel_monitor(&mut self) -> &mut ChannelMonitor {
-		if self.channel_state < ChannelState::FundingCreated as u32 {
+	pub fn channel_monitor(&mut self) -> &mut ChannelMonitor<ChanSigner> {
+		if self.channel_state < ChannelState::FundingSent as u32 {
 			panic!("Can't get a channel monitor until funding has been created");
 		}
-		&mut self.channel_monitor
+		self.channel_monitor.as_mut().unwrap()
 	}
 
 	/// Guaranteed to be Some after both FundingLocked messages have been exchanged (and, thus,
@@ -2798,7 +2973,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// Returns the funding_txo we either got from our peer, or were given by
 	/// get_outbound_funding_created.
 	pub fn get_funding_txo(&self) -> Option<OutPoint> {
-		self.channel_monitor.get_funding_txo()
+		self.funding_txo
 	}
 
 	/// Allowed in any state (including after shutdown)
@@ -2871,8 +3046,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	}
 
 	/// Allowed in any state (including after shutdown)
-	pub fn get_channel_update_count(&self) -> u32 {
-		self.channel_update_count
+	pub fn get_update_time_counter(&self) -> u32 {
+		self.update_time_counter
+	}
+
+	pub fn get_latest_monitor_update_id(&self) -> u64 {
+		self.latest_monitor_update_id
 	}
 
 	pub fn should_announce(&self) -> bool {
@@ -2885,7 +3064,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	/// Gets the fee we'd want to charge for adding an HTLC output to this Channel
 	/// Allowed in any state (including after shutdown)
-	pub fn get_our_fee_base_msat(&self, fee_estimator: &FeeEstimator) -> u32 {
+	pub fn get_our_fee_base_msat<F: Deref>(&self, fee_estimator: &F) -> u32
+		where F::Target: FeeEstimator
+	{
 		// For lack of a better metric, we calculate what it would cost to consolidate the new HTLC
 		// output value back into a transaction with the regular channel output:
 
@@ -2930,7 +3111,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	/// Returns true if funding_created was sent/received.
 	pub fn is_funding_initiated(&self) -> bool {
-		self.channel_state >= ChannelState::FundingCreated as u32
+		self.channel_state >= ChannelState::FundingSent as u32
 	}
 
 	/// Returns true if this channel is fully shut down. True here implies that no further actions
@@ -2963,64 +3144,43 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		self.network_sync == UpdateStatus::DisabledMarked
 	}
 
-	/// Called by channelmanager based on chain blocks being connected.
-	/// Note that we only need to use this to detect funding_signed, anything else is handled by
-	/// the channel_monitor.
-	/// In case of Err, the channel may have been closed, at which point the standard requirements
-	/// apply - no calls may be made except those explicitly stated to be allowed post-shutdown.
+	/// When we receive a new block, we (a) check whether the block contains the funding
+	/// transaction (which would start us counting blocks until we send the funding_signed), and
+	/// (b) check the height of the block against outbound holding cell HTLCs in case we need to
+	/// give up on them prematurely and time them out. Everything else (e.g. commitment
+	/// transaction broadcasts, channel closure detection, HTLC transaction broadcasting, etc) is
+	/// handled by the ChannelMonitor.
+	///
+	/// If we return Err, the channel may have been closed, at which point the standard
+	/// requirements apply - no calls may be made except those explicitly stated to be allowed
+	/// post-shutdown.
 	/// Only returns an ErrorAction of DisconnectPeer, if Err.
-	pub fn block_connected(&mut self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], indexes_of_txn_matched: &[u32]) -> Result<Option<msgs::FundingLocked>, msgs::ErrorMessage> {
+	///
+	/// May return some HTLCs (and their payment_hash) which have timed out and should be failed
+	/// back.
+	pub fn block_connected(&mut self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], indexes_of_txn_matched: &[u32]) -> Result<(Option<msgs::FundingLocked>, Vec<(HTLCSource, PaymentHash)>), msgs::ErrorMessage> {
+		let mut timed_out_htlcs = Vec::new();
+		self.holding_cell_htlc_updates.retain(|htlc_update| {
+			match htlc_update {
+				&HTLCUpdateAwaitingACK::AddHTLC { ref payment_hash, ref source, ref cltv_expiry, .. } => {
+					if *cltv_expiry <= height + HTLC_FAIL_BACK_BUFFER {
+						timed_out_htlcs.push((source.clone(), payment_hash.clone()));
+						false
+					} else { true }
+				},
+				_ => true
+			}
+		});
 		let non_shutdown_state = self.channel_state & (!MULTI_STATE_FLAGS);
 		if header.bitcoin_hash() != self.last_block_connected {
-			self.last_block_connected = header.bitcoin_hash();
-			self.channel_monitor.last_block_hash = self.last_block_connected;
 			if self.funding_tx_confirmations > 0 {
 				self.funding_tx_confirmations += 1;
-				if self.funding_tx_confirmations == self.minimum_depth as u64 {
-					let need_commitment_update = if non_shutdown_state == ChannelState::FundingSent as u32 {
-						self.channel_state |= ChannelState::OurFundingLocked as u32;
-						true
-					} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) {
-						self.channel_state = ChannelState::ChannelFunded as u32 | (self.channel_state & MULTI_STATE_FLAGS);
-						self.channel_update_count += 1;
-						true
-					} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::OurFundingLocked as u32) {
-						// We got a reorg but not enough to trigger a force close, just update
-						// funding_tx_confirmed_in and return.
-						false
-					} else if self.channel_state < ChannelState::ChannelFunded as u32 {
-						panic!("Started confirming a channel in a state pre-FundingSent?: {}", self.channel_state);
-					} else {
-						// We got a reorg but not enough to trigger a force close, just update
-						// funding_tx_confirmed_in and return.
-						false
-					};
-					self.funding_tx_confirmed_in = Some(header.bitcoin_hash());
-
-					//TODO: Note that this must be a duplicate of the previous commitment point they sent us,
-					//as otherwise we will have a commitment transaction that they can't revoke (well, kinda,
-					//they can by sending two revoke_and_acks back-to-back, but not really). This appears to be
-					//a protocol oversight, but I assume I'm just missing something.
-					if need_commitment_update {
-						if self.channel_state & (ChannelState::MonitorUpdateFailed as u32) == 0 {
-							let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_local_commitment_transaction_number);
-							let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &next_per_commitment_secret);
-							return Ok(Some(msgs::FundingLocked {
-								channel_id: self.channel_id,
-								next_per_commitment_point: next_per_commitment_point,
-							}));
-						} else {
-							self.monitor_pending_funding_locked = true;
-							return Ok(None);
-						}
-					}
-				}
 			}
 		}
 		if non_shutdown_state & !(ChannelState::TheirFundingLocked as u32) == ChannelState::FundingSent as u32 {
 			for (ref tx, index_in_block) in txn_matched.iter().zip(indexes_of_txn_matched) {
-				if tx.txid() == self.channel_monitor.get_funding_txo().unwrap().txid {
-					let txo_idx = self.channel_monitor.get_funding_txo().unwrap().index as usize;
+				if tx.txid() == self.funding_txo.unwrap().txid {
+					let txo_idx = self.funding_txo.unwrap().index as usize;
 					if txo_idx >= tx.output.len() || tx.output[txo_idx].script_pubkey != self.get_funding_redeemscript().to_v0_p2wsh() ||
 							tx.output[txo_idx].value != self.channel_value_satoshis {
 						if self.channel_outbound {
@@ -3033,7 +3193,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 							panic!("Client called ChannelManager::funding_transaction_generated with bogus transaction!");
 						}
 						self.channel_state = ChannelState::ShutdownComplete as u32;
-						self.channel_update_count += 1;
+						self.update_time_counter += 1;
 						return Err(msgs::ErrorMessage {
 							channel_id: self.channel_id(),
 							data: "funding tx had wrong script/value".to_owned()
@@ -3057,7 +3217,55 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				}
 			}
 		}
-		Ok(None)
+		if header.bitcoin_hash() != self.last_block_connected {
+			self.last_block_connected = header.bitcoin_hash();
+			self.update_time_counter = cmp::max(self.update_time_counter, header.time);
+			if let Some(channel_monitor) = self.channel_monitor.as_mut() {
+				channel_monitor.last_block_hash = self.last_block_connected;
+			}
+			if self.funding_tx_confirmations > 0 {
+				if self.funding_tx_confirmations == self.minimum_depth as u64 {
+					let need_commitment_update = if non_shutdown_state == ChannelState::FundingSent as u32 {
+						self.channel_state |= ChannelState::OurFundingLocked as u32;
+						true
+					} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) {
+						self.channel_state = ChannelState::ChannelFunded as u32 | (self.channel_state & MULTI_STATE_FLAGS);
+						self.update_time_counter += 1;
+						true
+					} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::OurFundingLocked as u32) {
+						// We got a reorg but not enough to trigger a force close, just update
+						// funding_tx_confirmed_in and return.
+						false
+					} else if self.channel_state < ChannelState::ChannelFunded as u32 {
+						panic!("Started confirming a channel in a state pre-FundingSent?: {}", self.channel_state);
+					} else {
+						// We got a reorg but not enough to trigger a force close, just update
+						// funding_tx_confirmed_in and return.
+						false
+					};
+					self.funding_tx_confirmed_in = Some(header.bitcoin_hash());
+
+					//TODO: Note that this must be a duplicate of the previous commitment point they sent us,
+					//as otherwise we will have a commitment transaction that they can't revoke (well, kinda,
+					//they can by sending two revoke_and_acks back-to-back, but not really). This appears to be
+					//a protocol oversight, but I assume I'm just missing something.
+					if need_commitment_update {
+						if self.channel_state & (ChannelState::MonitorUpdateFailed as u32) == 0 {
+							let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_local_commitment_transaction_number);
+							let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &next_per_commitment_secret);
+							return Ok((Some(msgs::FundingLocked {
+								channel_id: self.channel_id,
+								next_per_commitment_point: next_per_commitment_point,
+							}), timed_out_htlcs));
+						} else {
+							self.monitor_pending_funding_locked = true;
+							return Ok((None, timed_out_htlcs));
+						}
+					}
+				}
+			}
+		}
+		Ok((None, timed_out_htlcs))
 	}
 
 	/// Called by channelmanager based on chain blocks being disconnected.
@@ -3074,14 +3282,18 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			self.funding_tx_confirmations = self.minimum_depth as u64 - 1;
 		}
 		self.last_block_connected = header.bitcoin_hash();
-		self.channel_monitor.last_block_hash = self.last_block_connected;
+		if let Some(channel_monitor) = self.channel_monitor.as_mut() {
+			channel_monitor.last_block_hash = self.last_block_connected;
+		}
 		false
 	}
 
 	// Methods to get unprompted messages to send to the remote end (or where we already returned
 	// something in the handler for the message that prompted this message):
 
-	pub fn get_open_channel(&self, chain_hash: Sha256dHash, fee_estimator: &FeeEstimator) -> msgs::OpenChannel {
+	pub fn get_open_channel<F: Deref>(&self, chain_hash: BlockHash, fee_estimator: &F) -> msgs::OpenChannel
+		where F::Target: FeeEstimator
+	{
 		if !self.channel_outbound {
 			panic!("Tried to open a channel for an inbound channel?");
 		}
@@ -3109,7 +3321,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			max_accepted_htlcs: OUR_MAX_HTLCS,
 			funding_pubkey: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()),
 			revocation_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.revocation_base_key()),
-			payment_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_base_key()),
+			payment_point: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_key()),
 			delayed_payment_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.delayed_payment_base_key()),
 			htlc_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.htlc_base_key()),
 			first_per_commitment_point: PublicKey::from_secret_key(&self.secp_ctx, &local_commitment_secret),
@@ -3142,7 +3354,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			max_accepted_htlcs: OUR_MAX_HTLCS,
 			funding_pubkey: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()),
 			revocation_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.revocation_base_key()),
-			payment_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_base_key()),
+			payment_point: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_key()),
 			delayed_payment_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.delayed_payment_base_key()),
 			htlc_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.htlc_base_key()),
 			first_per_commitment_point: PublicKey::from_secret_key(&self.secp_ctx, &local_commitment_secret),
@@ -3151,11 +3363,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	}
 
 	/// If an Err is returned, it is a ChannelError::Close (for get_outbound_funding_created)
-	fn get_outbound_funding_created_signature(&mut self) -> Result<(Signature, Transaction), ChannelError> {
+	fn get_outbound_funding_created_signature(&mut self) -> Result<Signature, ChannelError> {
 		let remote_keys = self.build_remote_transaction_keys()?;
 		let remote_initial_commitment_tx = self.build_commitment_transaction(self.cur_remote_commitment_transaction_number, &remote_keys, false, false, self.feerate_per_kw).0;
-		Ok((self.local_keys.sign_remote_commitment(self.channel_value_satoshis, self.feerate_per_kw, &remote_initial_commitment_tx, &remote_keys, &Vec::new(), self.our_to_self_delay, &self.secp_ctx)
-				.map_err(|_| ChannelError::Close("Failed to get signatures for new commitment_signed"))?.0, remote_initial_commitment_tx))
+		Ok(self.local_keys.sign_remote_commitment(self.feerate_per_kw, &remote_initial_commitment_tx, &remote_keys, &Vec::new(), self.our_to_self_delay, &self.secp_ctx)
+				.map_err(|_| ChannelError::Close("Failed to get signatures for new commitment_signed"))?.0)
 	}
 
 	/// Updates channel state with knowledge of the funding transaction's txid/index, and generates
@@ -3165,27 +3377,25 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// Note that channel_id changes during this call!
 	/// Do NOT broadcast the funding transaction until after a successful funding_signed call!
 	/// If an Err is returned, it is a ChannelError::Close.
-	pub fn get_outbound_funding_created(&mut self, funding_txo: OutPoint) -> Result<(msgs::FundingCreated, ChannelMonitor), ChannelError> {
+	pub fn get_outbound_funding_created(&mut self, funding_txo: OutPoint) -> Result<msgs::FundingCreated, ChannelError> {
 		if !self.channel_outbound {
 			panic!("Tried to create outbound funding_created message on an inbound channel!");
 		}
 		if self.channel_state != (ChannelState::OurInitSent as u32 | ChannelState::TheirInitSent as u32) {
 			panic!("Tried to get a funding_created messsage at a time other than immediately after initial handshake completion (or tried to get funding_created twice)");
 		}
-		if self.channel_monitor.get_min_seen_secret() != (1 << 48) ||
+		if self.commitment_secrets.get_min_seen_secret() != (1 << 48) ||
 				self.cur_remote_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
 				self.cur_local_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
 			panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
 		}
 
-		let funding_txo_script = self.get_funding_redeemscript().to_v0_p2wsh();
-		self.channel_monitor.set_funding_info((funding_txo, funding_txo_script));
-
-		let (our_signature, commitment_tx) = match self.get_outbound_funding_created_signature() {
+		self.funding_txo = Some(funding_txo.clone());
+		let our_signature = match self.get_outbound_funding_created_signature() {
 			Ok(res) => res,
 			Err(e) => {
 				log_error!(self, "Got bad signatures: {:?}!", e);
-				self.channel_monitor.unset_funding_info();
+				self.funding_txo = None;
 				return Err(e);
 			}
 		};
@@ -3193,17 +3403,16 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let temporary_channel_id = self.channel_id;
 
 		// Now that we're past error-generating stuff, update our local state:
-		self.channel_monitor.provide_latest_remote_commitment_tx_info(&commitment_tx, Vec::new(), self.cur_remote_commitment_transaction_number, self.their_cur_commitment_point.unwrap());
+
 		self.channel_state = ChannelState::FundingCreated as u32;
 		self.channel_id = funding_txo.to_channel_id();
-		self.cur_remote_commitment_transaction_number -= 1;
 
-		Ok((msgs::FundingCreated {
-			temporary_channel_id: temporary_channel_id,
+		Ok(msgs::FundingCreated {
+			temporary_channel_id,
 			funding_txid: funding_txo.txid,
 			funding_output_index: funding_txo.index,
 			signature: our_signature
-		}, self.channel_monitor.clone()))
+		})
 	}
 
 	/// Gets an UnsignedChannelAnnouncement, as well as a signature covering it using our
@@ -3214,7 +3423,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// closing).
 	/// Note that the "channel must be funded" requirement is stricter than BOLT 7 requires - see
 	/// https://github.com/lightningnetwork/lightning-rfc/issues/468
-	pub fn get_channel_announcement(&self, our_node_id: PublicKey, chain_hash: Sha256dHash) -> Result<(msgs::UnsignedChannelAnnouncement, Signature), ChannelError> {
+	pub fn get_channel_announcement(&self, our_node_id: PublicKey, chain_hash: BlockHash) -> Result<(msgs::UnsignedChannelAnnouncement, Signature), ChannelError> {
 		if !self.config.announced_channel {
 			return Err(ChannelError::Ignore("Channel is not available for public announcements"));
 		}
@@ -3229,7 +3438,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let our_bitcoin_key = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key());
 
 		let msg = msgs::UnsignedChannelAnnouncement {
-			features: ChannelFeatures::supported(),
+			features: ChannelFeatures::known(),
 			chain_hash: chain_hash,
 			short_channel_id: self.get_short_channel_id().unwrap(),
 			node_id_1: if were_node_one { our_node_id } else { self.get_their_node_id() },
@@ -3250,18 +3459,26 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	pub fn get_channel_reestablish(&self) -> msgs::ChannelReestablish {
 		assert_eq!(self.channel_state & ChannelState::PeerDisconnected as u32, ChannelState::PeerDisconnected as u32);
 		assert_ne!(self.cur_remote_commitment_transaction_number, INITIAL_COMMITMENT_NUMBER);
+		// Prior to static_remotekey, my_current_per_commitment_point was critical to claiming
+		// current to_remote balances. However, it no longer has any use, and thus is now simply
+		// set to a dummy (but valid, as required by the spec) public key.
+		// fuzztarget mode marks a subset of pubkeys as invalid so that we can hit "invalid pubkey"
+		// branches, but we unwrap it below, so we arbitrarily select a dummy pubkey which is both
+		// valid, and valid in fuzztarget mode's arbitrary validity criteria:
+		let mut pk = [2; 33]; pk[1] = 0xff;
+		let dummy_pubkey = PublicKey::from_slice(&pk).unwrap();
 		let data_loss_protect = if self.cur_remote_commitment_transaction_number + 1 < INITIAL_COMMITMENT_NUMBER {
-			let remote_last_secret = self.channel_monitor.get_secret(self.cur_remote_commitment_transaction_number + 2).unwrap();
+			let remote_last_secret = self.commitment_secrets.get_secret(self.cur_remote_commitment_transaction_number + 2).unwrap();
 			log_trace!(self, "Enough info to generate a Data Loss Protect with per_commitment_secret {}", log_bytes!(remote_last_secret));
 			OptionalField::Present(DataLossProtect {
 				your_last_per_commitment_secret: remote_last_secret,
-				my_current_per_commitment_point: PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(self.cur_local_commitment_transaction_number + 1))
+				my_current_per_commitment_point: dummy_pubkey
 			})
 		} else {
-			log_debug!(self, "We don't seen yet any revoked secret, if this channnel has already been updated it means we are fallen-behind, you should wait for other peer closing");
+			log_info!(self, "Sending a data_loss_protect with no previous remote per_commitment_secret");
 			OptionalField::Present(DataLossProtect {
 				your_last_per_commitment_secret: [0;32],
-				my_current_per_commitment_point: PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(self.cur_local_commitment_transaction_number))
+				my_current_per_commitment_point: dummy_pubkey,
 			})
 		};
 		msgs::ChannelReestablish {
@@ -3306,6 +3523,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		if amount_msat > self.channel_value_satoshis * 1000 {
 			return Err(ChannelError::Ignore("Cannot send more than the total value of the channel"));
 		}
+
+		if amount_msat == 0 {
+			return Err(ChannelError::Ignore("Cannot send 0-msat HTLC"));
+		}
+
 		if amount_msat < self.their_htlc_minimum_msat {
 			return Err(ChannelError::Ignore("Cannot send less than their minimum HTLC value"));
 		}
@@ -3335,8 +3557,6 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Ignore("Cannot send value that would put us over their reserve value"));
 		}
 
-		//TODO: Check cltv_expiry? Do this in channel manager?
-
 		// Now update local state:
 		if (self.channel_state & (ChannelState::AwaitingRemoteRevoke as u32)) == (ChannelState::AwaitingRemoteRevoke as u32) {
 			self.holding_cell_htlc_updates.push(HTLCUpdateAwaitingACK::AddHTLC {
@@ -3375,7 +3595,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// Always returns a ChannelError::Close if an immediately-preceding (read: the
 	/// last call to this Channel) send_htlc returned Ok(Some(_)) and there is an Err.
 	/// May panic if called except immediately after a successful, Ok(Some(_))-returning send_htlc.
-	pub fn send_commitment(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitor), ChannelError> {
+	pub fn send_commitment(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitorUpdate), ChannelError> {
 		if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
 			panic!("Cannot create commitment tx until channel is fully established");
 		}
@@ -3407,7 +3627,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		self.send_commitment_no_status_check()
 	}
 	/// Only fails in case of bad keys
-	fn send_commitment_no_status_check(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitor), ChannelError> {
+	fn send_commitment_no_status_check(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitorUpdate), ChannelError> {
 		// We can upgrade the status of some HTLCs that are waiting on a commitment, even if we
 		// fail to generate this, we still are at least at a position where upgrading their status
 		// is acceptable.
@@ -3431,15 +3651,26 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let (res, remote_commitment_tx, htlcs) = match self.send_commitment_no_state_update() {
 			Ok((res, (remote_commitment_tx, mut htlcs))) => {
 				// Update state now that we've passed all the can-fail calls...
-				let htlcs_no_ref = htlcs.drain(..).map(|(htlc, htlc_source)| (htlc, htlc_source.map(|source_ref| Box::new(source_ref.clone())))).collect();
+				let htlcs_no_ref: Vec<(HTLCOutputInCommitment, Option<Box<HTLCSource>>)> =
+					htlcs.drain(..).map(|(htlc, htlc_source)| (htlc, htlc_source.map(|source_ref| Box::new(source_ref.clone())))).collect();
 				(res, remote_commitment_tx, htlcs_no_ref)
 			},
 			Err(e) => return Err(e),
 		};
 
-		self.channel_monitor.provide_latest_remote_commitment_tx_info(&remote_commitment_tx, htlcs, self.cur_remote_commitment_transaction_number, self.their_cur_commitment_point.unwrap());
+		self.latest_monitor_update_id += 1;
+		let monitor_update = ChannelMonitorUpdate {
+			update_id: self.latest_monitor_update_id,
+			updates: vec![ChannelMonitorUpdateStep::LatestRemoteCommitmentTXInfo {
+				unsigned_commitment_tx: remote_commitment_tx.clone(),
+				htlc_outputs: htlcs.clone(),
+				commitment_number: self.cur_remote_commitment_transaction_number,
+				their_revocation_point: self.their_cur_commitment_point.unwrap()
+			}]
+		};
+		self.channel_monitor.as_mut().unwrap().update_monitor_ooo(monitor_update.clone()).unwrap();
 		self.channel_state |= ChannelState::AwaitingRemoteRevoke as u32;
-		Ok((res, self.channel_monitor.clone()))
+		Ok((res, monitor_update))
 	}
 
 	/// Only fails in case of bad keys. Used for channel_reestablish commitment_signed generation
@@ -3462,7 +3693,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				htlcs.push(htlc);
 			}
 
-			let res = self.local_keys.sign_remote_commitment(self.channel_value_satoshis, feerate_per_kw, &remote_commitment_tx.0, &remote_keys, &htlcs, self.our_to_self_delay, &self.secp_ctx)
+			let res = self.local_keys.sign_remote_commitment(feerate_per_kw, &remote_commitment_tx.0, &remote_keys, &htlcs, self.our_to_self_delay, &self.secp_ctx)
 				.map_err(|_| ChannelError::Close("Failed to get signatures for new commitment_signed"))?;
 			signature = res.0;
 			htlc_signatures = res.1;
@@ -3492,7 +3723,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// to send to the remote peer in one go.
 	/// Shorthand for calling send_htlc() followed by send_commitment(), see docs on those for
 	/// more info.
-	pub fn send_htlc_and_commit(&mut self, amount_msat: u64, payment_hash: PaymentHash, cltv_expiry: u32, source: HTLCSource, onion_routing_packet: msgs::OnionPacket) -> Result<Option<(msgs::UpdateAddHTLC, msgs::CommitmentSigned, ChannelMonitor)>, ChannelError> {
+	pub fn send_htlc_and_commit(&mut self, amount_msat: u64, payment_hash: PaymentHash, cltv_expiry: u32, source: HTLCSource, onion_routing_packet: msgs::OnionPacket) -> Result<Option<(msgs::UpdateAddHTLC, msgs::CommitmentSigned, ChannelMonitorUpdate)>, ChannelError> {
 		match self.send_htlc(amount_msat, payment_hash, cltv_expiry, source, onion_routing_packet)? {
 			Some(update_add_htlc) => {
 				let (commitment_signed, monitor_update) = self.send_commitment_no_status_check()?;
@@ -3531,7 +3762,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		} else {
 			self.channel_state |= ChannelState::LocalShutdownSent as u32;
 		}
-		self.channel_update_count += 1;
+		self.update_time_counter += 1;
 
 		// Go ahead and drop holding cell updates as we'd rather fail payments than wait to send
 		// our shutdown until we've committed all of the pending changes.
@@ -3558,7 +3789,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// those explicitly stated to be allowed after shutdown completes, eg some simple getters).
 	/// Also returns the list of payment_hashes for channels which we can safely fail backwards
 	/// immediately (others we will have to allow to time out).
-	pub fn force_shutdown(&mut self) -> (Vec<Transaction>, Vec<(HTLCSource, PaymentHash)>) {
+	pub fn force_shutdown(&mut self, should_broadcast: bool) -> (Option<OutPoint>, ChannelMonitorUpdate, Vec<(HTLCSource, PaymentHash)>) {
 		assert!(self.channel_state != ChannelState::ShutdownComplete as u32);
 
 		// We go ahead and "free" any holding cell HTLCs or HTLCs we haven't yet committed to and
@@ -3580,8 +3811,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 
 		self.channel_state = ChannelState::ShutdownComplete as u32;
-		self.channel_update_count += 1;
-		(self.channel_monitor.get_latest_local_commitment_txn(), dropped_outbound_htlcs)
+		self.update_time_counter += 1;
+		self.latest_monitor_update_id += 1;
+		(self.funding_txo.clone(), ChannelMonitorUpdate {
+			update_id: self.latest_monitor_update_id,
+			updates: vec![ChannelMonitorUpdateStep::ChannelForceClosed { should_broadcast }],
+		}, dropped_outbound_htlcs)
 	}
 }
 
@@ -3609,9 +3844,9 @@ impl Writeable for InboundHTLCRemovalReason {
 	}
 }
 
-impl<R: ::std::io::Read> Readable<R> for InboundHTLCRemovalReason {
-	fn read(reader: &mut R) -> Result<Self, DecodeError> {
-		Ok(match <u8 as Readable<R>>::read(reader)? {
+impl Readable for InboundHTLCRemovalReason {
+	fn read<R: ::std::io::Read>(reader: &mut R) -> Result<Self, DecodeError> {
+		Ok(match <u8 as Readable>::read(reader)? {
 			0 => InboundHTLCRemovalReason::FailRelay(Readable::read(reader)?),
 			1 => InboundHTLCRemovalReason::FailMalformed((Readable::read(reader)?, Readable::read(reader)?)),
 			2 => InboundHTLCRemovalReason::Fulfill(Readable::read(reader)?),
@@ -3636,8 +3871,11 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 		self.channel_outbound.write(writer)?;
 		self.channel_value_satoshis.write(writer)?;
 
+		self.latest_monitor_update_id.write(writer)?;
+
 		self.local_keys.write(writer)?;
 		self.shutdown_pubkey.write(writer)?;
+		self.destination_script.write(writer)?;
 
 		self.cur_local_commitment_transaction_number.write(writer)?;
 		self.cur_remote_commitment_transaction_number.write(writer)?;
@@ -3651,12 +3889,15 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 		}
 		(self.pending_inbound_htlcs.len() as u64 - dropped_inbound_htlcs).write(writer)?;
 		for htlc in self.pending_inbound_htlcs.iter() {
+			if let &InboundHTLCState::RemoteAnnounced(_) = &htlc.state {
+				continue; // Drop
+			}
 			htlc.htlc_id.write(writer)?;
 			htlc.amount_msat.write(writer)?;
 			htlc.cltv_expiry.write(writer)?;
 			htlc.payment_hash.write(writer)?;
 			match &htlc.state {
-				&InboundHTLCState::RemoteAnnounced(_) => {}, // Drop
+				&InboundHTLCState::RemoteAnnounced(_) => unreachable!(),
 				&InboundHTLCState::AwaitingRemoteRevokeToAnnounce(ref htlc_state) => {
 					1u8.write(writer)?;
 					htlc_state.write(writer)?;
@@ -3675,18 +3916,6 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 			}
 		}
 
-		macro_rules! write_option {
-			($thing: expr) => {
-				match &$thing {
-					&None => 0u8.write(writer)?,
-					&Some(ref v) => {
-						1u8.write(writer)?;
-						v.write(writer)?;
-					},
-				}
-			}
-		}
-
 		(self.pending_outbound_htlcs.len() as u64).write(writer)?;
 		for htlc in self.pending_outbound_htlcs.iter() {
 			htlc.htlc_id.write(writer)?;
@@ -3704,15 +3933,15 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 				},
 				&OutboundHTLCState::RemoteRemoved(ref fail_reason) => {
 					2u8.write(writer)?;
-					write_option!(*fail_reason);
+					fail_reason.write(writer)?;
 				},
 				&OutboundHTLCState::AwaitingRemoteRevokeToRemove(ref fail_reason) => {
 					3u8.write(writer)?;
-					write_option!(*fail_reason);
+					fail_reason.write(writer)?;
 				},
 				&OutboundHTLCState::AwaitingRemovedRemoteRevoke(ref fail_reason) => {
 					4u8.write(writer)?;
-					write_option!(*fail_reason);
+					fail_reason.write(writer)?;
 				},
 			}
 		}
@@ -3763,12 +3992,12 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 			fail_reason.write(writer)?;
 		}
 
-		write_option!(self.pending_update_fee);
-		write_option!(self.holding_cell_update_fee);
+		self.pending_update_fee.write(writer)?;
+		self.holding_cell_update_fee.write(writer)?;
 
 		self.next_local_htlc_id.write(writer)?;
 		(self.next_remote_htlc_id - dropped_inbound_htlcs).write(writer)?;
-		self.channel_update_count.write(writer)?;
+		self.update_time_counter.write(writer)?;
 		self.feerate_per_kw.write(writer)?;
 
 		match self.last_sent_closing_fee {
@@ -3781,8 +4010,9 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 			None => 0u8.write(writer)?,
 		}
 
-		write_option!(self.funding_tx_confirmed_in);
-		write_option!(self.short_channel_id);
+		self.funding_txo.write(writer)?;
+		self.funding_tx_confirmed_in.write(writer)?;
+		self.short_channel_id.write(writer)?;
 
 		self.last_block_connected.write(writer)?;
 		self.funding_tx_confirmations.write(writer)?;
@@ -3798,21 +4028,23 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 		self.their_max_accepted_htlcs.write(writer)?;
 		self.minimum_depth.write(writer)?;
 
-		write_option!(self.their_pubkeys);
-		write_option!(self.their_cur_commitment_point);
+		self.their_pubkeys.write(writer)?;
+		self.their_cur_commitment_point.write(writer)?;
 
-		write_option!(self.their_prev_commitment_point);
+		self.their_prev_commitment_point.write(writer)?;
 		self.their_node_id.write(writer)?;
 
-		write_option!(self.their_shutdown_scriptpubkey);
+		self.their_shutdown_scriptpubkey.write(writer)?;
+
+		self.commitment_secrets.write(writer)?;
 
-		self.channel_monitor.write_for_disk(writer)?;
+		self.channel_monitor.as_ref().unwrap().write_for_disk(writer)?;
 		Ok(())
 	}
 }
 
-impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R, Arc<Logger>> for Channel<ChanSigner> {
-	fn read(reader: &mut R, logger: Arc<Logger>) -> Result<Self, DecodeError> {
+impl<ChanSigner: ChannelKeys + Readable> ReadableArgs<Arc<Logger>> for Channel<ChanSigner> {
+	fn read<R : ::std::io::Read>(reader: &mut R, logger: Arc<Logger>) -> Result<Self, DecodeError> {
 		let _ver: u8 = Readable::read(reader)?;
 		let min_ver: u8 = Readable::read(reader)?;
 		if min_ver > SERIALIZATION_VERSION {
@@ -3827,8 +4059,11 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 		let channel_outbound = Readable::read(reader)?;
 		let channel_value_satoshis = Readable::read(reader)?;
 
+		let latest_monitor_update_id = Readable::read(reader)?;
+
 		let local_keys = Readable::read(reader)?;
 		let shutdown_pubkey = Readable::read(reader)?;
+		let destination_script = Readable::read(reader)?;
 
 		let cur_local_commitment_transaction_number = Readable::read(reader)?;
 		let cur_remote_commitment_transaction_number = Readable::read(reader)?;
@@ -3842,7 +4077,7 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 				amount_msat: Readable::read(reader)?,
 				cltv_expiry: Readable::read(reader)?,
 				payment_hash: Readable::read(reader)?,
-				state: match <u8 as Readable<R>>::read(reader)? {
+				state: match <u8 as Readable>::read(reader)? {
 					1 => InboundHTLCState::AwaitingRemoteRevokeToAnnounce(Readable::read(reader)?),
 					2 => InboundHTLCState::AwaitingAnnouncedRemoteRevoke(Readable::read(reader)?),
 					3 => InboundHTLCState::Committed,
@@ -3861,7 +4096,7 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 				cltv_expiry: Readable::read(reader)?,
 				payment_hash: Readable::read(reader)?,
 				source: Readable::read(reader)?,
-				state: match <u8 as Readable<R>>::read(reader)? {
+				state: match <u8 as Readable>::read(reader)? {
 					0 => OutboundHTLCState::LocalAnnounced(Box::new(Readable::read(reader)?)),
 					1 => OutboundHTLCState::Committed,
 					2 => OutboundHTLCState::RemoteRemoved(Readable::read(reader)?),
@@ -3875,7 +4110,7 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 		let holding_cell_htlc_update_count: u64 = Readable::read(reader)?;
 		let mut holding_cell_htlc_updates = Vec::with_capacity(cmp::min(holding_cell_htlc_update_count as usize, OUR_MAX_HTLCS as usize*2));
 		for _ in 0..holding_cell_htlc_update_count {
-			holding_cell_htlc_updates.push(match <u8 as Readable<R>>::read(reader)? {
+			holding_cell_htlc_updates.push(match <u8 as Readable>::read(reader)? {
 				0 => HTLCUpdateAwaitingACK::AddHTLC {
 					amount_msat: Readable::read(reader)?,
 					cltv_expiry: Readable::read(reader)?,
@@ -3895,7 +4130,7 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 			});
 		}
 
-		let resend_order = match <u8 as Readable<R>>::read(reader)? {
+		let resend_order = match <u8 as Readable>::read(reader)? {
 			0 => RAACommitmentOrder::CommitmentFirst,
 			1 => RAACommitmentOrder::RevokeAndACKFirst,
 			_ => return Err(DecodeError::InvalidValue),
@@ -3922,15 +4157,16 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 
 		let next_local_htlc_id = Readable::read(reader)?;
 		let next_remote_htlc_id = Readable::read(reader)?;
-		let channel_update_count = Readable::read(reader)?;
+		let update_time_counter = Readable::read(reader)?;
 		let feerate_per_kw = Readable::read(reader)?;
 
-		let last_sent_closing_fee = match <u8 as Readable<R>>::read(reader)? {
+		let last_sent_closing_fee = match <u8 as Readable>::read(reader)? {
 			0 => None,
 			1 => Some((Readable::read(reader)?, Readable::read(reader)?, Readable::read(reader)?)),
 			_ => return Err(DecodeError::InvalidValue),
 		};
 
+		let funding_txo = Readable::read(reader)?;
 		let funding_tx_confirmed_in = Readable::read(reader)?;
 		let short_channel_id = Readable::read(reader)?;
 
@@ -3955,9 +4191,11 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 		let their_node_id = Readable::read(reader)?;
 
 		let their_shutdown_scriptpubkey = Readable::read(reader)?;
+		let commitment_secrets = Readable::read(reader)?;
+
 		let (monitor_last_block, channel_monitor) = ReadableArgs::read(reader, logger.clone())?;
 		// We drop the ChannelMonitor's last block connected hash cause we don't actually bother
-		// doing full block connection operations on the internal CHannelMonitor copies
+		// doing full block connection operations on the internal ChannelMonitor copies
 		if monitor_last_block != last_block_connected {
 			return Err(DecodeError::InvalidValue);
 		}
@@ -3972,8 +4210,11 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 			secp_ctx: Secp256k1::new(),
 			channel_value_satoshis,
 
+			latest_monitor_update_id,
+
 			local_keys,
 			shutdown_pubkey,
+			destination_script,
 
 			cur_local_commitment_transaction_number,
 			cur_remote_commitment_transaction_number,
@@ -3995,7 +4236,7 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 			holding_cell_update_fee,
 			next_local_htlc_id,
 			next_remote_htlc_id,
-			channel_update_count,
+			update_time_counter,
 			feerate_per_kw,
 
 			#[cfg(debug_assertions)]
@@ -4005,6 +4246,7 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 
 			last_sent_closing_fee,
 
+			funding_txo,
 			funding_tx_confirmed_in,
 			short_channel_id,
 			last_block_connected,
@@ -4029,7 +4271,8 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 
 			their_shutdown_scriptpubkey,
 
-			channel_monitor,
+			channel_monitor: Some(channel_monitor),
+			commitment_secrets,
 
 			network_sync: UpdateStatus::Fresh,
 
@@ -4040,31 +4283,37 @@ impl<R : ::std::io::Read, ChanSigner: ChannelKeys + Readable<R>> ReadableArgs<R,
 
 #[cfg(test)]
 mod tests {
+	use bitcoin::BitcoinHash;
 	use bitcoin::util::bip143;
 	use bitcoin::consensus::encode::serialize;
 	use bitcoin::blockdata::script::{Script, Builder};
-	use bitcoin::blockdata::transaction::Transaction;
+	use bitcoin::blockdata::transaction::{Transaction, TxOut};
+	use bitcoin::blockdata::constants::genesis_block;
 	use bitcoin::blockdata::opcodes;
-	use bitcoin_hashes::hex::FromHex;
+	use bitcoin::network::constants::Network;
+	use bitcoin::hashes::hex::FromHex;
 	use hex;
 	use ln::channelmanager::{HTLCSource, PaymentPreimage, PaymentHash};
 	use ln::channel::{Channel,ChannelKeys,InboundHTLCOutput,OutboundHTLCOutput,InboundHTLCState,OutboundHTLCState,HTLCOutputInCommitment,TxCreationKeys};
 	use ln::channel::MAX_FUNDING_SATOSHIS;
+	use ln::features::InitFeatures;
+	use ln::msgs::{OptionalField, DataLossProtect};
 	use ln::chan_utils;
 	use ln::chan_utils::{LocalCommitmentTransaction, ChannelPublicKeys};
 	use chain::chaininterface::{FeeEstimator,ConfirmationTarget};
 	use chain::keysinterface::{InMemoryChannelKeys, KeysInterface};
 	use chain::transaction::OutPoint;
 	use util::config::UserConfig;
+	use util::enforcing_trait_impls::EnforcingChannelKeys;
 	use util::test_utils;
 	use util::logger::Logger;
-	use secp256k1::{Secp256k1, Message, Signature, All};
-	use secp256k1::key::{SecretKey,PublicKey};
-	use bitcoin_hashes::sha256::Hash as Sha256;
-	use bitcoin_hashes::sha256d::Hash as Sha256dHash;
-	use bitcoin_hashes::hash160::Hash as Hash160;
-	use bitcoin_hashes::Hash;
+	use bitcoin::secp256k1::{Secp256k1, Message, Signature, All};
+	use bitcoin::secp256k1::key::{SecretKey,PublicKey};
+	use bitcoin::hashes::sha256::Hash as Sha256;
+	use bitcoin::hashes::Hash;
+	use bitcoin::hash_types::{Txid, WPubkeyHash};
 	use std::sync::Arc;
+	use rand::{thread_rng,Rng};
 
 	struct TestFeeEstimator {
 		fee_est: u64
@@ -4091,7 +4340,7 @@ mod tests {
 		fn get_destination_script(&self) -> Script {
 			let secp_ctx = Secp256k1::signing_only();
 			let channel_monitor_claim_key = SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
-			let our_channel_monitor_claim_key_hash = Hash160::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
+			let our_channel_monitor_claim_key_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 			Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 		}
 
@@ -4101,7 +4350,9 @@ mod tests {
 			PublicKey::from_secret_key(&secp_ctx, &channel_close_key)
 		}
 
-		fn get_channel_keys(&self, _inbound: bool) -> InMemoryChannelKeys { self.chan_keys.clone() }
+		fn get_channel_keys(&self, _inbound: bool, _channel_value_satoshis: u64) -> InMemoryChannelKeys {
+			self.chan_keys.clone()
+		}
 		fn get_onion_rand(&self) -> (SecretKey, [u8; 32]) { panic!(); }
 		fn get_channel_id(&self) -> [u8; 32] { [0; 32] }
 	}
@@ -4110,6 +4361,72 @@ mod tests {
 		PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&hex::decode(hex).unwrap()[..]).unwrap())
 	}
 
+	#[test]
+	fn channel_reestablish_no_updates() {
+		let feeest = TestFeeEstimator{fee_est: 15000};
+		let logger : Arc<Logger> = Arc::new(test_utils::TestLogger::new());
+		let secp_ctx = Secp256k1::new();
+		let mut seed = [0; 32];
+		let mut rng = thread_rng();
+		rng.fill_bytes(&mut seed);
+		let network = Network::Testnet;
+		let keys_provider = test_utils::TestKeysInterface::new(&seed, network, logger.clone() as Arc<Logger>);
+
+		// Go through the flow of opening a channel between two nodes.
+
+		// Create Node A's channel
+		let node_a_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
+		let config = UserConfig::default();
+		let mut node_a_chan = Channel::<EnforcingChannelKeys>::new_outbound(&&feeest, &&keys_provider, node_a_node_id, 10000000, 100000, 42, Arc::clone(&logger), &config).unwrap();
+
+		// Create Node B's channel by receiving Node A's open_channel message
+		let open_channel_msg = node_a_chan.get_open_channel(genesis_block(network).header.bitcoin_hash(), &&feeest);
+		let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[7; 32]).unwrap());
+		let mut node_b_chan = Channel::<EnforcingChannelKeys>::new_from_req(&&feeest, &&keys_provider, node_b_node_id, InitFeatures::known(), &open_channel_msg, 7, logger, &config).unwrap();
+
+		// Node B --> Node A: accept channel
+		let accept_channel_msg = node_b_chan.get_accept_channel();
+		node_a_chan.accept_channel(&accept_channel_msg, &config, InitFeatures::known()).unwrap();
+
+		// Node A --> Node B: funding created
+		let output_script = node_a_chan.get_funding_redeemscript();
+		let tx = Transaction { version: 1, lock_time: 0, input: Vec::new(), output: vec![TxOut {
+			value: 10000000, script_pubkey: output_script.clone(),
+		}]};
+		let funding_outpoint = OutPoint::new(tx.txid(), 0);
+		let funding_created_msg = node_a_chan.get_outbound_funding_created(funding_outpoint).unwrap();
+		let (funding_signed_msg, _) = node_b_chan.funding_created(&funding_created_msg).unwrap();
+
+		// Node B --> Node A: funding signed
+		let _ = node_a_chan.funding_signed(&funding_signed_msg);
+
+		// Now disconnect the two nodes and check that the commitment point in
+		// Node B's channel_reestablish message is sane.
+		node_b_chan.remove_uncommitted_htlcs_and_mark_paused();
+		let msg = node_b_chan.get_channel_reestablish();
+		assert_eq!(msg.next_local_commitment_number, 1); // now called next_commitment_number
+		assert_eq!(msg.next_remote_commitment_number, 0); // now called next_revocation_number
+		match msg.data_loss_protect {
+			OptionalField::Present(DataLossProtect { your_last_per_commitment_secret, .. }) => {
+				assert_eq!(your_last_per_commitment_secret, [0; 32]);
+			},
+			_ => panic!()
+		}
+
+		// Check that the commitment point in Node A's channel_reestablish message
+		// is sane.
+		node_a_chan.remove_uncommitted_htlcs_and_mark_paused();
+		let msg = node_a_chan.get_channel_reestablish();
+		assert_eq!(msg.next_local_commitment_number, 1); // now called next_commitment_number
+		assert_eq!(msg.next_remote_commitment_number, 0); // now called next_revocation_number
+		match msg.data_loss_protect {
+			OptionalField::Present(DataLossProtect { your_last_per_commitment_secret, .. }) => {
+				assert_eq!(your_last_per_commitment_secret, [0; 32]);
+			},
+			_ => panic!()
+		}
+	}
+
 	#[test]
 	fn outbound_commitment_test() {
 		// Test vectors from BOLT 3 Appendix C:
@@ -4117,40 +4434,43 @@ mod tests {
 		let logger : Arc<Logger> = Arc::new(test_utils::TestLogger::new());
 		let secp_ctx = Secp256k1::new();
 
-		let chan_keys = InMemoryChannelKeys {
-			funding_key: SecretKey::from_slice(&hex::decode("30ff4956bbdd3222d44cc5e8a1261dab1e07957bdac5ae88fe3261ef321f3749").unwrap()[..]).unwrap(),
-			payment_base_key: SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap(),
-			delayed_payment_base_key: SecretKey::from_slice(&hex::decode("3333333333333333333333333333333333333333333333333333333333333333").unwrap()[..]).unwrap(),
-			htlc_base_key: SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap(),
+		let mut chan_keys = InMemoryChannelKeys::new(
+			&secp_ctx,
+			SecretKey::from_slice(&hex::decode("30ff4956bbdd3222d44cc5e8a1261dab1e07957bdac5ae88fe3261ef321f3749").unwrap()[..]).unwrap(),
+			SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap(),
+			SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap(),
+			SecretKey::from_slice(&hex::decode("3333333333333333333333333333333333333333333333333333333333333333").unwrap()[..]).unwrap(),
+			SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap(),
 
 			// These aren't set in the test vectors:
-			revocation_base_key: SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap(),
-			commitment_seed: [0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff],
-			remote_channel_pubkeys: None,
-		};
+			[0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff],
+			10_000_000,
+		);
+
 		assert_eq!(PublicKey::from_secret_key(&secp_ctx, chan_keys.funding_key()).serialize()[..],
 				hex::decode("023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb").unwrap()[..]);
-		let keys_provider: Arc<KeysInterface<ChanKeySigner = InMemoryChannelKeys>> = Arc::new(Keys { chan_keys });
+		let keys_provider = Keys { chan_keys: chan_keys.clone() };
 
 		let their_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
 		let mut config = UserConfig::default();
 		config.channel_options.announced_channel = false;
-		let mut chan = Channel::<InMemoryChannelKeys>::new_outbound(&feeest, &keys_provider, their_node_id, 10000000, 100000, 42, Arc::clone(&logger), &config).unwrap(); // Nothing uses their network key in this test
+		let mut chan = Channel::<InMemoryChannelKeys>::new_outbound(&&feeest, &&keys_provider, their_node_id, 10_000_000, 100000, 42, Arc::clone(&logger), &config).unwrap(); // Nothing uses their network key in this test
 		chan.their_to_self_delay = 144;
 		chan.our_dust_limit_satoshis = 546;
 
-		let funding_info = OutPoint::new(Sha256dHash::from_hex("8984484a580b825b9972d7adb15050b3ab624ccd731946b3eeddb92f4e7ef6be").unwrap(), 0);
-		chan.channel_monitor.set_funding_info((funding_info, Script::new()));
+		let funding_info = OutPoint::new(Txid::from_hex("8984484a580b825b9972d7adb15050b3ab624ccd731946b3eeddb92f4e7ef6be").unwrap(), 0);
+		chan.funding_txo = Some(funding_info);
 
 		let their_pubkeys = ChannelPublicKeys {
 			funding_pubkey: public_from_secret_hex(&secp_ctx, "1552dfba4f6cf29a62a0af13c8d6981d36d0ef8d61ba10fb0fe90da7634d7e13"),
 			revocation_basepoint: PublicKey::from_slice(&hex::decode("02466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f27").unwrap()[..]).unwrap(),
-			payment_basepoint: public_from_secret_hex(&secp_ctx, "4444444444444444444444444444444444444444444444444444444444444444"),
+			payment_point: public_from_secret_hex(&secp_ctx, "4444444444444444444444444444444444444444444444444444444444444444"),
 			delayed_payment_basepoint: public_from_secret_hex(&secp_ctx, "1552dfba4f6cf29a62a0af13c8d6981d36d0ef8d61ba10fb0fe90da7634d7e13"),
 			htlc_basepoint: public_from_secret_hex(&secp_ctx, "4444444444444444444444444444444444444444444444444444444444444444")
 		};
+		chan_keys.set_remote_channel_pubkeys(&their_pubkeys);
 
-		assert_eq!(their_pubkeys.payment_basepoint.serialize()[..],
+		assert_eq!(their_pubkeys.payment_point.serialize()[..],
 		           hex::decode("032c0b7cf95324a07d05398b240174dc0c2be444d96b159aa6c7f7b1e668680991").unwrap()[..]);
 
 		assert_eq!(their_pubkeys.funding_pubkey.serialize()[..],
@@ -4166,14 +4486,17 @@ mod tests {
 		let per_commitment_secret = SecretKey::from_slice(&hex::decode("1f1e1d1c1b1a191817161514131211100f0e0d0c0b0a09080706050403020100").unwrap()[..]).unwrap();
 		let per_commitment_point = PublicKey::from_secret_key(&secp_ctx, &per_commitment_secret);
 		let htlc_basepoint = PublicKey::from_secret_key(&secp_ctx, chan.local_keys.htlc_base_key());
-		let keys = TxCreationKeys::new(&secp_ctx, &per_commitment_point, &delayed_payment_base, &htlc_basepoint, &their_pubkeys.revocation_basepoint, &their_pubkeys.payment_basepoint, &their_pubkeys.htlc_basepoint).unwrap();
+		let keys = TxCreationKeys::new(&secp_ctx, &per_commitment_point, &delayed_payment_base, &htlc_basepoint, &their_pubkeys.revocation_basepoint, &their_pubkeys.htlc_basepoint).unwrap();
 
 		chan.their_pubkeys = Some(their_pubkeys);
 
 		let mut unsigned_tx: (Transaction, Vec<HTLCOutputInCommitment>);
 
+		let mut localtx;
 		macro_rules! test_commitment {
-			( $their_sig_hex: expr, $our_sig_hex: expr, $tx_hex: expr) => {
+			( $their_sig_hex: expr, $our_sig_hex: expr, $tx_hex: expr, {
+				$( { $htlc_idx: expr, $their_htlc_sig_hex: expr, $our_htlc_sig_hex: expr, $htlc_tx_hex: expr } ), *
+			} ) => { {
 				unsigned_tx = {
 					let mut res = chan.build_commitment_transaction(0xffffffffffff - 42, &keys, true, false, chan.feerate_per_kw);
 					let htlcs = res.2.drain(..)
@@ -4186,50 +4509,68 @@ mod tests {
 				let sighash = Message::from_slice(&bip143::SighashComponents::new(&unsigned_tx.0).sighash_all(&unsigned_tx.0.input[0], &redeemscript, chan.channel_value_satoshis)[..]).unwrap();
 				secp_ctx.verify(&sighash, &their_signature, chan.their_funding_pubkey()).unwrap();
 
-				let mut localtx = LocalCommitmentTransaction::new_missing_local_sig(unsigned_tx.0.clone(), &their_signature, &PublicKey::from_secret_key(&secp_ctx, chan.local_keys.funding_key()), chan.their_funding_pubkey());
-				localtx.add_local_sig(chan.local_keys.funding_key(), &redeemscript, chan.channel_value_satoshis, &chan.secp_ctx);
+				let mut per_htlc = Vec::new();
+				per_htlc.clear(); // Don't warn about excess mut for no-HTLC calls
+				$({
+					let remote_signature = Signature::from_der(&hex::decode($their_htlc_sig_hex).unwrap()[..]).unwrap();
+					per_htlc.push((unsigned_tx.1[$htlc_idx].clone(), Some(remote_signature)));
+				})*
+				assert_eq!(unsigned_tx.1.len(), per_htlc.len());
+
+				localtx = LocalCommitmentTransaction::new_missing_local_sig(unsigned_tx.0.clone(), their_signature.clone(), &PublicKey::from_secret_key(&secp_ctx, chan.local_keys.funding_key()), chan.their_funding_pubkey(), keys.clone(), chan.feerate_per_kw, per_htlc);
+				let local_sig = chan_keys.sign_local_commitment(&localtx, &chan.secp_ctx).unwrap();
+				assert_eq!(Signature::from_der(&hex::decode($our_sig_hex).unwrap()[..]).unwrap(), local_sig);
 
-				assert_eq!(serialize(localtx.with_valid_witness())[..],
+				assert_eq!(serialize(&localtx.add_local_sig(&redeemscript, local_sig))[..],
 						hex::decode($tx_hex).unwrap()[..]);
-			};
-		}
 
-		macro_rules! test_htlc_output {
-			( $htlc_idx: expr, $their_sig_hex: expr, $our_sig_hex: expr, $tx_hex: expr ) => {
-				let remote_signature = Signature::from_der(&hex::decode($their_sig_hex).unwrap()[..]).unwrap();
+				let htlc_sigs = chan_keys.sign_local_commitment_htlc_transactions(&localtx, chan.their_to_self_delay, &chan.secp_ctx).unwrap();
+				let mut htlc_sig_iter = localtx.per_htlc.iter().zip(htlc_sigs.iter().enumerate());
+
+				$({
+					let remote_signature = Signature::from_der(&hex::decode($their_htlc_sig_hex).unwrap()[..]).unwrap();
 
-				let ref htlc = unsigned_tx.1[$htlc_idx];
-				let mut htlc_tx = chan.build_htlc_transaction(&unsigned_tx.0.txid(), &htlc, true, &keys, chan.feerate_per_kw);
-				let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&htlc, &keys);
-				let htlc_sighash = Message::from_slice(&bip143::SighashComponents::new(&htlc_tx).sighash_all(&htlc_tx.input[0], &htlc_redeemscript, htlc.amount_msat / 1000)[..]).unwrap();
-				secp_ctx.verify(&htlc_sighash, &remote_signature, &keys.b_htlc_key).unwrap();
+					let ref htlc = unsigned_tx.1[$htlc_idx];
+					let htlc_tx = chan.build_htlc_transaction(&unsigned_tx.0.txid(), &htlc, true, &keys, chan.feerate_per_kw);
+					let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&htlc, &keys);
+					let htlc_sighash = Message::from_slice(&bip143::SighashComponents::new(&htlc_tx).sighash_all(&htlc_tx.input[0], &htlc_redeemscript, htlc.amount_msat / 1000)[..]).unwrap();
+					secp_ctx.verify(&htlc_sighash, &remote_signature, &keys.b_htlc_key).unwrap();
 
-				let mut preimage: Option<PaymentPreimage> = None;
-				if !htlc.offered {
-					for i in 0..5 {
-						let out = PaymentHash(Sha256::hash(&[i; 32]).into_inner());
-						if out == htlc.payment_hash {
-							preimage = Some(PaymentPreimage([i; 32]));
+					let mut preimage: Option<PaymentPreimage> = None;
+					if !htlc.offered {
+						for i in 0..5 {
+							let out = PaymentHash(Sha256::hash(&[i; 32]).into_inner());
+							if out == htlc.payment_hash {
+								preimage = Some(PaymentPreimage([i; 32]));
+							}
 						}
+
+						assert!(preimage.is_some());
 					}
 
-					assert!(preimage.is_some());
+					let mut htlc_sig = htlc_sig_iter.next().unwrap();
+					while (htlc_sig.1).1.is_none() { htlc_sig = htlc_sig_iter.next().unwrap(); }
+					assert_eq!((htlc_sig.0).0.transaction_output_index, Some($htlc_idx));
+
+					let our_signature = Signature::from_der(&hex::decode($our_htlc_sig_hex).unwrap()[..]).unwrap();
+					assert_eq!(Some(our_signature), *(htlc_sig.1).1);
+					assert_eq!(serialize(&localtx.get_signed_htlc_tx((htlc_sig.1).0, &(htlc_sig.1).1.unwrap(), &preimage, chan.their_to_self_delay))[..],
+							hex::decode($htlc_tx_hex).unwrap()[..]);
+				})*
+				loop {
+					let htlc_sig = htlc_sig_iter.next();
+					if htlc_sig.is_none() { break; }
+					assert!((htlc_sig.unwrap().1).1.is_none());
 				}
-
-				chan_utils::sign_htlc_transaction(&mut htlc_tx, &remote_signature, &preimage, &htlc, &keys.a_htlc_key, &keys.b_htlc_key, &keys.revocation_key, &keys.per_commitment_point, chan.local_keys.htlc_base_key(), &chan.secp_ctx).unwrap();
-				assert_eq!(serialize(&htlc_tx)[..],
-						hex::decode($tx_hex).unwrap()[..]);
-			};
+			} }
 		}
 
-		{
-			// simple commitment tx with no HTLCs
-			chan.value_to_self_msat = 7000000000;
+		// simple commitment tx with no HTLCs
+		chan.value_to_self_msat = 7000000000;
 
-			test_commitment!("3045022100f51d2e566a70ba740fc5d8c0f07b9b93d2ed741c3c0860c613173de7d39e7968022041376d520e9c0e1ad52248ddf4b22e12be8763007df977253ef45a4ca3bdb7c0",
-			                 "3044022051b75c73198c6deee1a875871c3961832909acd297c6b908d59e3319e5185a46022055c419379c5051a78d00dbbce11b5b664a0c22815fbcc6fcef6b1937c3836939",
-			                 "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");
-		}
+		test_commitment!("3045022100c3127b33dcc741dd6b05b1e63cbd1a9a7d816f37af9b6756fa2376b056f032370220408b96279808fe57eb7e463710804cdf4f108388bc5cf722d8c848d2c7f9f3b0",
+						 "30440220616210b2cc4d3afb601013c373bbd8aac54febd9f15400379a8cb65ce7deca60022034236c010991beb7ff770510561ae8dc885b8d38d1947248c38f2ae055647142",
+						 "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", {});
 
 		chan.pending_inbound_htlcs.push({
 			let mut out = InboundHTLCOutput{
@@ -4289,323 +4630,277 @@ mod tests {
 			out
 		});
 
-		{
-			// commitment tx with all five HTLCs untrimmed (minimum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 0;
-
-			test_commitment!("304402204fd4928835db1ccdfc40f5c78ce9bd65249b16348df81f0c44328dcdefc97d630220194d3869c38bc732dd87d13d2958015e2fc16829e74cd4377f84d215c0b70606",
-			                 "30440220275b0c325a5e9355650dc30c0eccfbc7efb23987c24b556b9dfdd40effca18d202206caceb2c067836c51f296740c7ae807ffcbfbf1dd3a0d56b6de9a5b247985f06",
-			                 "02000000000101bef67e4e2fb9ddeeb3461973cd4c62abb35050b1add772995b820b584a488489000000000038b02b8007e80300000000000022002052bfef0479d7b293c27e0f1eb294bea154c63a3294ef092c19af51409bce0e2ad007000000000000220020403d394747cae42e98ff01734ad5c08f82ba123d3d9a620abda88989651e2ab5d007000000000000220020748eba944fedc8827f6b06bc44678f93c0f9e6078b35c6331ed31e75f8ce0c2db80b000000000000220020c20b5d1f8584fd90443e7b7b720136174fa4b9333c261d04dbbd012635c0f419a00f0000000000002200208c48d15160397c9731df9bc3b236656efb6665fbfe92b4a6878e88a499f741c4c0c62d0000000000160014ccf1af2f2aabee14bb40fa3851ab2301de843110e0a06a00000000002200204adb4e2f00643db396dd120d4e7dc17625f5f2c11a40d857accc862d6b7dd80e04004730440220275b0c325a5e9355650dc30c0eccfbc7efb23987c24b556b9dfdd40effca18d202206caceb2c067836c51f296740c7ae807ffcbfbf1dd3a0d56b6de9a5b247985f060147304402204fd4928835db1ccdfc40f5c78ce9bd65249b16348df81f0c44328dcdefc97d630220194d3869c38bc732dd87d13d2958015e2fc16829e74cd4377f84d215c0b7060601475221023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb21030e9f7b623d2ccc7c9bd44d66d5ce21ce504c0acf6385a132cec6d3c39fa711c152ae3e195220");
-
-			assert_eq!(unsigned_tx.1.len(), 5);
-
-			test_htlc_output!(0,
-			                  "304402206a6e59f18764a5bf8d4fa45eebc591566689441229c918b480fb2af8cc6a4aeb02205248f273be447684b33e3c8d1d85a8e0ca9fa0bae9ae33f0527ada9c162919a6",
-			                  "304402207cb324fa0de88f452ffa9389678127ebcf4cabe1dd848b8e076c1a1962bf34720220116ed922b12311bd602d67e60d2529917f21c5b82f25ff6506c0f87886b4dfd5",
-			                  "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");
-
-			test_htlc_output!(1,
-			                  "3045022100d5275b3619953cb0c3b5aa577f04bc512380e60fa551762ce3d7a1bb7401cff9022037237ab0dac3fe100cde094e82e2bed9ba0ed1bb40154b48e56aa70f259e608b",
-			                  "3045022100c89172099507ff50f4c925e6c5150e871fb6e83dd73ff9fbb72f6ce829a9633f02203a63821d9162e99f9be712a68f9e589483994feae2661e4546cd5b6cec007be5",
-			                  "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");
-
-			test_htlc_output!(2,
-			                  "304402201b63ec807771baf4fdff523c644080de17f1da478989308ad13a58b51db91d360220568939d38c9ce295adba15665fa68f51d967e8ed14a007b751540a80b325f202",
-			                  "3045022100def389deab09cee69eaa1ec14d9428770e45bcbe9feb46468ecf481371165c2f022015d2e3c46600b2ebba8dcc899768874cc6851fd1ecb3fffd15db1cc3de7e10da",
-			                  "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");
-
-			test_htlc_output!(3,
-			                  "3045022100daee1808f9861b6c3ecd14f7b707eca02dd6bdfc714ba2f33bc8cdba507bb182022026654bf8863af77d74f51f4e0b62d461a019561bb12acb120d3f7195d148a554",
-			                  "30440220643aacb19bbb72bd2b635bc3f7375481f5981bace78cdd8319b2988ffcc6704202203d27784ec8ad51ed3bd517a05525a5139bb0b755dd719e0054332d186ac08727",
-			                  "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");
-
-			test_htlc_output!(4,
-			                  "304402207e0410e45454b0978a623f36a10626ef17b27d9ad44e2760f98cfa3efb37924f0220220bd8acd43ecaa916a80bd4f919c495a2c58982ce7c8625153f8596692a801d",
-			                  "30440220549e80b4496803cbc4a1d09d46df50109f546d43fbbf86cd90b174b1484acd5402205f12a4f995cb9bded597eabfee195a285986aa6d93ae5bb72507ebc6a4e2349e",
-			                  "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");
-		}
-
-		{
-			// commitment tx with seven outputs untrimmed (maximum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 647;
-
-			test_commitment!("3045022100a5c01383d3ec646d97e40f44318d49def817fcd61a0ef18008a665b3e151785502203e648efddd5838981ef55ec954be69c4a652d021e6081a100d034de366815e9b",
-			                 "304502210094bfd8f5572ac0157ec76a9551b6c5216a4538c07cd13a51af4a54cb26fa14320220768efce8ce6f4a5efac875142ff19237c011343670adf9c7ac69704a120d1163",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 5);
-
-			test_htlc_output!(0,
-			                  "30440220385a5afe75632f50128cbb029ee95c80156b5b4744beddc729ad339c9ca432c802202ba5f48550cad3379ac75b9b4fedb86a35baa6947f16ba5037fb8b11ab343740",
-			                  "304402205999590b8a79fa346e003a68fd40366397119b2b0cdf37b149968d6bc6fbcc4702202b1e1fb5ab7864931caed4e732c359e0fe3d86a548b557be2246efb1708d579a",
-			                  "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");
-
-			test_htlc_output!(1,
-			                  "304402207ceb6678d4db33d2401fdc409959e57c16a6cb97a30261d9c61f29b8c58d34b90220084b4a17b4ca0e86f2d798b3698ca52de5621f2ce86f80bed79afa66874511b0",
-			                  "304402207ff03eb0127fc7c6cae49cc29e2a586b98d1e8969cf4a17dfa50b9c2647720b902205e2ecfda2252956c0ca32f175080e75e4e390e433feb1f8ce9f2ba55648a1dac",
-			                  "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");
-
-			test_htlc_output!(2,
-			                  "304402206a401b29a0dff0d18ec903502c13d83e7ec019450113f4a7655a4ce40d1f65ba0220217723a084e727b6ca0cc8b6c69c014a7e4a01fcdcba3e3993f462a3c574d833",
-			                  "3045022100d50d067ca625d54e62df533a8f9291736678d0b86c28a61bb2a80cf42e702d6e02202373dde7e00218eacdafb9415fe0e1071beec1857d1af3c6a201a44cbc47c877",
-			                  "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");
-
-			test_htlc_output!(3,
-			                  "30450221009b1c987ba599ee3bde1dbca776b85481d70a78b681a8d84206723e2795c7cac002207aac84ad910f8598c4d1c0ea2e3399cf6627a4e3e90131315bc9f038451ce39d",
-			                  "3045022100db9dc65291077a52728c622987e9895b7241d4394d6dcb916d7600a3e8728c22022036ee3ee717ba0bb5c45ee84bc7bbf85c0f90f26ae4e4a25a6b4241afa8a3f1cb",
-			                  "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");
-
-			test_htlc_output!(4,
-			                  "3045022100cc28030b59f0914f45b84caa983b6f8effa900c952310708c2b5b00781117022022027ba2ccdf94d03c6d48b327f183f6e28c8a214d089b9227f94ac4f85315274f0",
-			                  "304402202d1a3c0d31200265d2a2def2753ead4959ae20b4083e19553acfffa5dfab60bf022020ede134149504e15b88ab261a066de49848411e15e70f9e6a5462aec2949f8f",
-			                  "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");
-		}
-
-		{
-			// commitment tx with six outputs untrimmed (minimum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 648;
-
-			test_commitment!("3044022072714e2fbb93cdd1c42eb0828b4f2eff143f717d8f26e79d6ada4f0dcb681bbe02200911be4e5161dd6ebe59ff1c58e1997c4aea804f81db6b698821db6093d7b057",
-			                 "3045022100a2270d5950c89ae0841233f6efea9c951898b301b2e89e0adbd2c687b9f32efa02207943d90f95b9610458e7c65a576e149750ff3accaacad004cd85e70b235e27de",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 4);
-
-			test_htlc_output!(0,
-			                  "3044022062ef2e77591409d60d7817d9bb1e71d3c4a2931d1a6c7c8307422c84f001a251022022dad9726b0ae3fe92bda745a06f2c00f92342a186d84518588cf65f4dfaada8",
-			                  "3045022100a4c574f00411dd2f978ca5cdc1b848c311cd7849c087ad2f21a5bce5e8cc5ae90220090ae39a9bce2fb8bc879d7e9f9022df249f41e25e51f1a9bf6447a9eeffc098",
-			                  "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");
-
-			test_htlc_output!(1,
-			                  "3045022100e968cbbb5f402ed389fdc7f6cd2a80ed650bb42c79aeb2a5678444af94f6c78502204b47a1cb24ab5b0b6fe69fe9cfc7dba07b9dd0d8b95f372c1d9435146a88f8d4",
-			                  "304402207679cf19790bea76a733d2fa0672bd43ab455687a068f815a3d237581f57139a0220683a1a799e102071c206b207735ca80f627ab83d6616b4bcd017c5d79ef3e7d0",
-			                  "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");
-
-			test_htlc_output!(2,
-			                  "3045022100aa91932e305292cf9969cc23502bbf6cef83a5df39c95ad04a707c4f4fed5c7702207099fc0f3a9bfe1e7683c0e9aa5e76c5432eb20693bf4cb182f04d383dc9c8c2",
-			                  "304402200df76fea718745f3c529bac7fd37923e7309ce38b25c0781e4cf514dd9ef8dc802204172295739dbae9fe0474dcee3608e3433b4b2af3a2e6787108b02f894dcdda3",
-			                  "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");
-
-			test_htlc_output!(3,
-			                  "3044022035cac88040a5bba420b1c4257235d5015309113460bc33f2853cd81ca36e632402202fc94fd3e81e9d34a9d01782a0284f3044370d03d60f3fc041e2da088d2de58f",
-			                  "304402200daf2eb7afd355b4caf6fb08387b5f031940ea29d1a9f35071288a839c9039e4022067201b562456e7948616c13acb876b386b511599b58ac1d94d127f91c50463a6",
-			                  "02000000000101579c183eca9e8236a5d7f5dcd79cfec32c497fdc0ec61533cde99ecd436cadd103000000000000000001d90d0000000000002200204adb4e2f00643db396dd120d4e7dc17625f5f2c11a40d857accc862d6b7dd80e0500473044022035cac88040a5bba420b1c4257235d5015309113460bc33f2853cd81ca36e632402202fc94fd3e81e9d34a9d01782a0284f3044370d03d60f3fc041e2da088d2de58f0147304402200daf2eb7afd355b4caf6fb08387b5f031940ea29d1a9f35071288a839c9039e4022067201b562456e7948616c13acb876b386b511599b58ac1d94d127f91c50463a6012004040404040404040404040404040404040404040404040404040404040404048a76a91414011f7254d96b819c76986c277d115efce6f7b58763ac67210394854aa6eab5b2a8122cc726e9dded053a2184d88256816826d6231c068d4a5b7c8201208763a91418bc1a114ccf9c052d3d23e28d3b0a9d1227434288527c21030d417a46946384f88d5f3337267c5e579765875dc4daca813e21734b140639e752ae677502f801b175ac686800000000");
-		}
-
-		{
-			// commitment tx with six outputs untrimmed (maximum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 2069;
-
-			test_commitment!("3044022001d55e488b8b035b2dd29d50b65b530923a416d47f377284145bc8767b1b6a75022019bb53ddfe1cefaf156f924777eaaf8fdca1810695a7d0a247ad2afba8232eb4",
-			                 "304402203ca8f31c6a47519f83255dc69f1894d9a6d7476a19f498d31eaf0cd3a85eeb63022026fd92dc752b33905c4c838c528b692a8ad4ced959990b5d5ee2ff940fa90eea",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 4);
-
-			test_htlc_output!(0,
-			                  "3045022100d1cf354de41c1369336cf85b225ed033f1f8982a01be503668df756a7e668b66022001254144fb4d0eecc61908fccc3388891ba17c5d7a1a8c62bdd307e5a513f992",
-			                  "3044022056eb1af429660e45a1b0b66568cb8c4a3aa7e4c9c292d5d6c47f86ebf2c8838f022065c3ac4ebe980ca7a41148569be4ad8751b0a724a41405697ec55035dae66402",
-			                  "02000000000101ca94a9ad516ebc0c4bdd7b6254871babfa978d5accafb554214137d398bfcf6a0000000000000000000175020000000000002200204adb4e2f00643db396dd120d4e7dc17625f5f2c11a40d857accc862d6b7dd80e0500483045022100d1cf354de41c1369336cf85b225ed033f1f8982a01be503668df756a7e668b66022001254144fb4d0eecc61908fccc3388891ba17c5d7a1a8c62bdd307e5a513f99201473044022056eb1af429660e45a1b0b66568cb8c4a3aa7e4c9c292d5d6c47f86ebf2c8838f022065c3ac4ebe980ca7a41148569be4ad8751b0a724a41405697ec55035dae6640201008576a91414011f7254d96b819c76986c277d115efce6f7b58763ac67210394854aa6eab5b2a8122cc726e9dded053a2184d88256816826d6231c068d4a5b7c820120876475527c21030d417a46946384f88d5f3337267c5e579765875dc4daca813e21734b140639e752ae67a914b43e1b38138a41b37f7cd9a1d274bc63e3a9b5d188ac6868f6010000");
-
-			test_htlc_output!(1,
-			                  "3045022100d065569dcb94f090345402736385efeb8ea265131804beac06dd84d15dd2d6880220664feb0b4b2eb985fadb6ec7dc58c9334ea88ce599a9be760554a2d4b3b5d9f4",
-			                  "3045022100914bb232cd4b2690ee3d6cb8c3713c4ac9c4fb925323068d8b07f67c8541f8d9022057152f5f1615b793d2d45aac7518989ae4fe970f28b9b5c77504799d25433f7f",
-			                  "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");
-
-			test_htlc_output!(2,
-			                  "3045022100d4e69d363de993684eae7b37853c40722a4c1b4a7b588ad7b5d8a9b5006137a102207a069c628170ee34be5612747051bdcc087466dbaa68d5756ea81c10155aef18",
-			                  "304402200e362443f7af830b419771e8e1614fc391db3a4eb799989abfc5ab26d6fcd032022039ab0cad1c14dfbe9446bf847965e56fe016e0cbcf719fd18c1bfbf53ecbd9f9",
-			                  "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");
-
-			test_htlc_output!(3,
-			                  "30450221008ec888e36e4a4b3dc2ed6b823319855b2ae03006ca6ae0d9aa7e24bfc1d6f07102203b0f78885472a67ff4fe5916c0bb669487d659527509516fc3a08e87a2cc0a7c",
-			                  "304402202c3e14282b84b02705dfd00a6da396c9fe8a8bcb1d3fdb4b20a4feba09440e8b02202b058b39aa9b0c865b22095edcd9ff1f71bbfe20aa4993755e54d042755ed0d5",
-			                  "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");
-		}
-
-		{
-			// commitment tx with five outputs untrimmed (minimum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 2070;
-
-			test_commitment!("3045022100f2377f7a67b7fc7f4e2c0c9e3a7de935c32417f5668eda31ea1db401b7dc53030220415fdbc8e91d0f735e70c21952342742e25249b0d062d43efbfc564499f37526",
-			                 "30440220443cb07f650aebbba14b8bc8d81e096712590f524c5991ac0ed3bbc8fd3bd0c7022028a635f548e3ca64b19b69b1ea00f05b22752f91daf0b6dab78e62ba52eb7fd0",
-			                 "02000000000101bef67e4e2fb9ddeeb3461973cd4c62abb35050b1add772995b820b584a488489000000000038b02b8005d007000000000000220020403d394747cae42e98ff01734ad5c08f82ba123d3d9a620abda88989651e2ab5b80b000000000000220020c20b5d1f8584fd90443e7b7b720136174fa4b9333c261d04dbbd012635c0f419a00f0000000000002200208c48d15160397c9731df9bc3b236656efb6665fbfe92b4a6878e88a499f741c4c0c62d0000000000160014ccf1af2f2aabee14bb40fa3851ab2301de843110da966a00000000002200204adb4e2f00643db396dd120d4e7dc17625f5f2c11a40d857accc862d6b7dd80e04004730440220443cb07f650aebbba14b8bc8d81e096712590f524c5991ac0ed3bbc8fd3bd0c7022028a635f548e3ca64b19b69b1ea00f05b22752f91daf0b6dab78e62ba52eb7fd001483045022100f2377f7a67b7fc7f4e2c0c9e3a7de935c32417f5668eda31ea1db401b7dc53030220415fdbc8e91d0f735e70c21952342742e25249b0d062d43efbfc564499f3752601475221023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb21030e9f7b623d2ccc7c9bd44d66d5ce21ce504c0acf6385a132cec6d3c39fa711c152ae3e195220");
-
-			assert_eq!(unsigned_tx.1.len(), 3);
-
-			test_htlc_output!(0,
-			                  "3045022100eed143b1ee4bed5dc3cde40afa5db3e7354cbf9c44054b5f713f729356f08cf7022077161d171c2bbd9badf3c9934de65a4918de03bbac1450f715275f75b103f891",
-			                  "3045022100a0d043ed533e7fb1911e0553d31a8e2f3e6de19dbc035257f29d747c5e02f1f5022030cd38d8e84282175d49c1ebe0470db3ebd59768cf40780a784e248a43904fb8",
-			                  "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");
-
-			test_htlc_output!(1,
-			                  "3044022071e9357619fd8d29a411dc053b326a5224c5d11268070e88ecb981b174747c7a02202b763ae29a9d0732fa8836dd8597439460b50472183f420021b768981b4f7cf6",
-			                  "3045022100adb1d679f65f96178b59f23ed37d3b70443118f345224a07ecb043eee2acc157022034d24524fe857144a3bcfff3065a9994d0a6ec5f11c681e49431d573e242612d",
-			                  "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");
-
-			test_htlc_output!(2,
-			                  "3045022100c9458a4d2cbb741705577deb0a890e5cb90ee141be0400d3162e533727c9cb2102206edcf765c5dc5e5f9b976ea8149bf8607b5a0efb30691138e1231302b640d2a4",
-			                  "304402200831422aa4e1ee6d55e0b894201770a8f8817a189356f2d70be76633ffa6a6f602200dd1b84a4855dc6727dd46c98daae43dfc70889d1ba7ef0087529a57c06e5e04",
-			                  "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");
-		}
-
-		{
-			// commitment tx with five outputs untrimmed (maximum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 2194;
-
-			test_commitment!("3045022100d33c4e541aa1d255d41ea9a3b443b3b822ad8f7f86862638aac1f69f8f760577022007e2a18e6931ce3d3a804b1c78eda1de17dbe1fb7a95488c9a4ec86203953348",
-			                 "304402203b1b010c109c2ecbe7feb2d259b9c4126bd5dc99ee693c422ec0a5781fe161ba0220571fe4e2c649dea9c7aaf7e49b382962f6a3494963c97d80fef9a430ca3f7061",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 3);
-
-			test_htlc_output!(0,
-			                  "30450221009ed2f0a67f99e29c3c8cf45c08207b765980697781bb727fe0b1416de0e7622902206052684229bc171419ed290f4b615c943f819c0262414e43c5b91dcf72ddcf44",
-			                  "3044022004ad5f04ae69c71b3b141d4db9d0d4c38d84009fb3cfeeae6efdad414487a9a0022042d3fe1388c1ff517d1da7fb4025663d372c14728ed52dc88608363450ff6a2f",
-			                  "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");
-
-			test_htlc_output!(1,
-			                  "30440220155d3b90c67c33a8321996a9be5b82431b0c126613be751d400669da9d5c696702204318448bcd48824439d2c6a70be6e5747446be47ff45977cf41672bdc9b6b12d",
-			                  "304402201707050c870c1f77cc3ed58d6d71bf281de239e9eabd8ef0955bad0d7fe38dcc02204d36d80d0019b3a71e646a08fa4a5607761d341ae8be371946ebe437c289c915",
-			                  "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");
-
-			test_htlc_output!(2,
-			                  "3045022100a12a9a473ece548584aabdd051779025a5ed4077c4b7aa376ec7a0b1645e5a48022039490b333f53b5b3e2ddde1d809e492cba2b3e5fc3a436cd3ffb4cd3d500fa5a",
-			                  "3045022100ff200bc934ab26ce9a559e998ceb0aee53bc40368e114ab9d3054d9960546e2802202496856ca163ac12c143110b6b3ac9d598df7254f2e17b3b94c3ab5301f4c3b0",
-			                  "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");
-		}
-
-		{
-			// commitment tx with four outputs untrimmed (minimum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 2195;
-
-			test_commitment!("304402205e2f76d4657fb732c0dfc820a18a7301e368f5799e06b7828007633741bda6df0220458009ae59d0c6246065c419359e05eb2a4b4ef4a1b310cc912db44eb7924298",
-			                 "304402203b12d44254244b8ff3bb4129b0920fd45120ab42f553d9976394b099d500c99e02205e95bb7a3164852ef0c48f9e0eaf145218f8e2c41251b231f03cbdc4f29a5429",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 2);
-
-			test_htlc_output!(0,
-			                  "3045022100a8a78fa1016a5c5c3704f2e8908715a3cef66723fb95f3132ec4d2d05cd84fb4022025ac49287b0861ec21932405f5600cbce94313dbde0e6c5d5af1b3366d8afbfc",
-			                  "3045022100be6ae1977fd7b630a53623f3f25c542317ccfc2b971782802a4f1ef538eb22b402207edc4d0408f8f38fd3c7365d1cfc26511b7cd2d4fecd8b005fba3cd5bc704390",
-			                  "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");
-
-			test_htlc_output!(1,
-			                  "3045022100e769cb156aa2f7515d126cef7a69968629620ce82afcaa9e210969de6850df4602200b16b3f3486a229a48aadde520dbee31ae340dbadaffae74fbb56681fef27b92",
-			                  "30440220665b9cb4a978c09d1ca8977a534999bc8a49da624d0c5439451dd69cde1a003d022070eae0620f01f3c1bd029cc1488da13fb40fdab76f396ccd335479a11c5276d8",
-			                  "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");
-		}
-
-		{
-			// commitment tx with four outputs untrimmed (maximum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 3702;
-
-			test_commitment!("3045022100c1a3b0b60ca092ed5080121f26a74a20cec6bdee3f8e47bae973fcdceb3eda5502207d467a9873c939bf3aa758014ae67295fedbca52412633f7e5b2670fc7c381c1",
-			                 "304402200e930a43c7951162dc15a2b7344f48091c74c70f7024e7116e900d8bcfba861c022066fa6cbda3929e21daa2e7e16a4b948db7e8919ef978402360d1095ffdaff7b0",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 2);
-
-			test_htlc_output!(0,
-			                  "3045022100dfb73b4fe961b31a859b2bb1f4f15cabab9265016dd0272323dc6a9e85885c54022059a7b87c02861ee70662907f25ce11597d7b68d3399443a831ae40e777b76bdb",
-			                  "304402202765b9c9ece4f127fa5407faf66da4c5ce2719cdbe47cd3175fc7d48b482e43d02205605125925e07bad1e41c618a4b434d72c88a164981c4b8af5eaf4ee9142ec3a",
-			                  "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");
-
-			test_htlc_output!(1,
-			                  "3045022100ea9dc2a7c3c3640334dab733bb4e036e32a3106dc707b24227874fa4f7da746802204d672f7ac0fe765931a8df10b81e53a3242dd32bd9dc9331eb4a596da87954e9",
-			                  "30440220048a41c660c4841693de037d00a407810389f4574b3286afb7bc392a438fa3f802200401d71fa87c64fe621b49ac07e3bf85157ac680acb977124da28652cc7f1a5c",
-			                  "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");
-		}
-
-		{
-			// commitment tx with three outputs untrimmed (minimum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 3703;
-
-			test_commitment!("30450221008b7c191dd46893b67b628e618d2dc8e81169d38bade310181ab77d7c94c6675e02203b4dd131fd7c9deb299560983dcdc485545c98f989f7ae8180c28289f9e6bdb0",
-			                 "3044022047305531dd44391dce03ae20f8735005c615eb077a974edb0059ea1a311857d602202e0ed6972fbdd1e8cb542b06e0929bc41b2ddf236e04cb75edd56151f4197506",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 1);
-
-			test_htlc_output!(0,
-			                  "3044022044f65cf833afdcb9d18795ca93f7230005777662539815b8a601eeb3e57129a902206a4bf3e53392affbba52640627defa8dc8af61c958c9e827b2798ab45828abdd",
-			                  "3045022100b94d931a811b32eeb885c28ddcf999ae1981893b21dd1329929543fe87ce793002206370107fdd151c5f2384f9ceb71b3107c69c74c8ed5a28a94a4ab2d27d3b0724",
-			                  "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");
-		}
-
-		{
-			// commitment tx with three outputs untrimmed (maximum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 4914;
-
-			test_commitment!("304402206d6cb93969d39177a09d5d45b583f34966195b77c7e585cf47ac5cce0c90cefb022031d71ae4e33a4e80df7f981d696fbdee517337806a3c7138b7491e2cbb077a0e",
-			                 "304402206a2679efa3c7aaffd2a447fd0df7aba8792858b589750f6a1203f9259173198a022008d52a0e77a99ab533c36206cb15ad7aeb2aa72b93d4b571e728cb5ec2f6fe26",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 1);
-
-			test_htlc_output!(0,
-			                  "3045022100fcb38506bfa11c02874092a843d0cc0a8613c23b639832564a5f69020cb0f6ba02206508b9e91eaa001425c190c68ee5f887e1ad5b1b314002e74db9dbd9e42dbecf",
-			                  "304502210086e76b460ddd3cea10525fba298405d3fe11383e56966a5091811368362f689a02200f72ee75657915e0ede89c28709acd113ede9e1b7be520e3bc5cda425ecd6e68",
-			                  "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");
-		}
-
-		{
-			// commitment tx with two outputs untrimmed (minimum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 4915;
-
-			test_commitment!("304402200769ba89c7330dfa4feba447b6e322305f12ac7dac70ec6ba997ed7c1b598d0802204fe8d337e7fee781f9b7b1a06e580b22f4f79d740059560191d7db53f8765552",
-			                 "3045022100a012691ba6cea2f73fa8bac37750477e66363c6d28813b0bb6da77c8eb3fb0270220365e99c51304b0b1a6ab9ea1c8500db186693e39ec1ad5743ee231b0138384b9",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 0);
-		}
-
-		{
-			// commitment tx with two outputs untrimmed (maximum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 9651180;
-
-			test_commitment!("3044022037f83ff00c8e5fb18ae1f918ffc24e54581775a20ff1ae719297ef066c71caa9022039c529cccd89ff6c5ed1db799614533844bd6d101da503761c45c713996e3bbd",
-			                 "30440220514f977bf7edc442de8ce43ace9686e5ebdc0f893033f13e40fb46c8b8c6e1f90220188006227d175f5c35da0b092c57bea82537aed89f7778204dc5bacf4f29f2b9",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 0);
-		}
-
-		{
-			// commitment tx with one output untrimmed (minimum feerate)
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 9651181;
-
-			test_commitment!("3044022064901950be922e62cbe3f2ab93de2b99f37cff9fc473e73e394b27f88ef0731d02206d1dfa227527b4df44a07599289e207d6fd9cca60c0365682dcd3deaf739567e",
-			                 "3044022031a82b51bd014915fe68928d1abf4b9885353fb896cac10c3fdd88d7f9c7f2e00220716bda819641d2c63e65d3549b6120112e1aeaf1742eed94a471488e79e206b1",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 0);
-		}
-
-		{
-			// commitment tx with fee greater than funder amount
-			chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
-			chan.feerate_per_kw = 9651936;
-
-			test_commitment!("3044022064901950be922e62cbe3f2ab93de2b99f37cff9fc473e73e394b27f88ef0731d02206d1dfa227527b4df44a07599289e207d6fd9cca60c0365682dcd3deaf739567e",
-			                 "3044022031a82b51bd014915fe68928d1abf4b9885353fb896cac10c3fdd88d7f9c7f2e00220716bda819641d2c63e65d3549b6120112e1aeaf1742eed94a471488e79e206b1",
-			                 "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");
-
-			assert_eq!(unsigned_tx.1.len(), 0);
-		}
+		// commitment tx with all five HTLCs untrimmed (minimum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 0;
+
+		test_commitment!("3044022009b048187705a8cbc9ad73adbe5af148c3d012e1f067961486c822c7af08158c022006d66f3704cfab3eb2dc49dae24e4aa22a6910fc9b424007583204e3621af2e5",
+		                 "304402206fc2d1f10ea59951eefac0b4b7c396a3c3d87b71ff0b019796ef4535beaf36f902201765b0181e514d04f4c8ad75659d7037be26cdb3f8bb6f78fe61decef484c3ea",
+		                 "02000000000101bef67e4e2fb9ddeeb3461973cd4c62abb35050b1add772995b820b584a488489000000000038b02b8007e80300000000000022002052bfef0479d7b293c27e0f1eb294bea154c63a3294ef092c19af51409bce0e2ad007000000000000220020403d394747cae42e98ff01734ad5c08f82ba123d3d9a620abda88989651e2ab5d007000000000000220020748eba944fedc8827f6b06bc44678f93c0f9e6078b35c6331ed31e75f8ce0c2db80b000000000000220020c20b5d1f8584fd90443e7b7b720136174fa4b9333c261d04dbbd012635c0f419a00f0000000000002200208c48d15160397c9731df9bc3b236656efb6665fbfe92b4a6878e88a499f741c4c0c62d0000000000160014cc1b07838e387deacd0e5232e1e8b49f4c29e484e0a06a00000000002200204adb4e2f00643db396dd120d4e7dc17625f5f2c11a40d857accc862d6b7dd80e040047304402206fc2d1f10ea59951eefac0b4b7c396a3c3d87b71ff0b019796ef4535beaf36f902201765b0181e514d04f4c8ad75659d7037be26cdb3f8bb6f78fe61decef484c3ea01473044022009b048187705a8cbc9ad73adbe5af148c3d012e1f067961486c822c7af08158c022006d66f3704cfab3eb2dc49dae24e4aa22a6910fc9b424007583204e3621af2e501475221023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb21030e9f7b623d2ccc7c9bd44d66d5ce21ce504c0acf6385a132cec6d3c39fa711c152ae3e195220", {
+
+		                  { 0,
+		                  "3045022100d9e29616b8f3959f1d3d7f7ce893ffedcdc407717d0de8e37d808c91d3a7c50d022078c3033f6d00095c8720a4bc943c1b45727818c082e4e3ddbc6d3116435b624b",
+		                  "30440220636de5682ef0c5b61f124ec74e8aa2461a69777521d6998295dcea36bc3338110220165285594b23c50b28b82df200234566628a27bcd17f7f14404bd865354eb3ce",
+		                  "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" },
+
+		                  { 1,
+		                  "30440220649fe8b20e67e46cbb0d09b4acea87dbec001b39b08dee7bdd0b1f03922a8640022037c462dff79df501cecfdb12ea7f4de91f99230bb544726f6e04527b1f896004",
+		                  "3045022100803159dee7935dba4a1d36a61055ce8fd62caa528573cc221ae288515405a252022029c59e7cffce374fe860100a4a63787e105c3cf5156d40b12dd53ff55ac8cf3f",
+		                  "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" },
+
+		                  { 2,
+		                  "30440220770fc321e97a19f38985f2e7732dd9fe08d16a2efa4bcbc0429400a447faf49102204d40b417f3113e1b0944ae0986f517564ab4acd3d190503faf97a6e420d43352",
+		                  "3045022100a437cc2ce77400ecde441b3398fea3c3ad8bdad8132be818227fe3c5b8345989022069d45e7fa0ae551ec37240845e2c561ceb2567eacf3076a6a43a502d05865faa",
+		                  "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" },
+
+		                  { 3,
+		                  "304402207bcbf4f60a9829b05d2dbab84ed593e0291836be715dc7db6b72a64caf646af802201e489a5a84f7c5cc130398b841d138d031a5137ac8f4c49c770a4959dc3c1363",
+		                  "304402203121d9b9c055f354304b016a36662ee99e1110d9501cb271b087ddb6f382c2c80220549882f3f3b78d9c492de47543cb9a697cecc493174726146536c5954dac7487",
+		                  "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" },
+
+		                  { 4,
+		                  "3044022076dca5cb81ba7e466e349b7128cdba216d4d01659e29b96025b9524aaf0d1899022060de85697b88b21c749702b7d2cfa7dfeaa1f472c8f1d7d9c23f2bf968464b87",
+		                  "3045022100d9080f103cc92bac15ec42464a95f070c7fb6925014e673ee2ea1374d36a7f7502200c65294d22eb20d48564954d5afe04a385551919d8b2ddb4ae2459daaeee1d95",
+		                  "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" }
+		} );
+
+		// commitment tx with seven outputs untrimmed (maximum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 647;
+
+		test_commitment!("3045022100a135f9e8a5ed25f7277446c67956b00ce6f610ead2bdec2c2f686155b7814772022059f1f6e1a8b336a68efcc1af3fe4d422d4827332b5b067501b099c47b7b5b5ee",
+		                 "30450221009ec15c687898bb4da8b3a833e5ab8bfc51ec6e9202aaa8e66611edfd4a85ed1102203d7183e45078b9735c93450bc3415d3e5a8c576141a711ec6ddcb4a893926bb7",
+		                 "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", {
+
+		                  { 0,
+		                  "30450221008437627f9ad84ac67052e2a414a4367b8556fd1f94d8b02590f89f50525cd33502205b9c21ff6e7fc864f2352746ad8ba59182510819acb644e25b8a12fc37bbf24f",
+		                  "30440220344b0deb055230d01703e6c7acd45853c4af2328b49b5d8af4f88a060733406602202ea64f2a43d5751edfe75503cbc35a62e3141b5ed032fa03360faf4ca66f670b",
+		                  "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" },
+
+		                  { 1,
+		                  "304402205a67f92bf6845cf2892b48d874ac1daf88a36495cf8a06f93d83180d930a6f75022031da1621d95c3f335cc06a3056cf960199dae600b7cf89088f65fc53cdbef28c",
+		                  "30450221009e5e3822b0185c6799a95288c597b671d6cc69ab80f43740f00c6c3d0752bdda02206da947a74bd98f3175324dc56fdba86cc783703a120a6f0297537e60632f4c7f",
+		                  "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" },
+
+		                  { 2,
+		                  "30440220437e21766054a3eef7f65690c5bcfa9920babbc5af92b819f772f6ea96df6c7402207173622024bd97328cfb26c6665e25c2f5d67c319443ccdc60c903217005d8c8",
+		                  "3045022100fcfc47e36b712624677626cef3dc1d67f6583bd46926a6398fe6b00b0c9a37760220525788257b187fc775c6370d04eadf34d06f3650a63f8df851cee0ecb47a1673",
+		                  "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" },
+
+		                  { 3,
+		                  "304402207436e10737e4df499fc051686d3e11a5bb2310e4d1f1e691d287cef66514791202207cb58e71a6b7a42dd001b7e3ae672ea4f71ea3e1cd412b742e9124abb0739c64",
+		                  "3045022100e78211b8409afb7255ffe37337da87f38646f1faebbdd61bc1920d69e3ead67a02201a626305adfcd16bfb7e9340928d9b6305464eab4aa4c4a3af6646e9b9f69dee",
+		                  "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" },
+
+		                  { 4,
+		                  "30450221009acd6a827a76bfee50806178dfe0495cd4e1d9c58279c194c7b01520fe68cb8d022024d439047c368883e570997a7d40f0b430cb5a742f507965e7d3063ae3feccca",
+		                  "3044022048762cf546bbfe474f1536365ea7c416e3c0389d60558bc9412cb148fb6ab68202207215d7083b75c96ff9d2b08c59c34e287b66820f530b486a9aa4cdd9c347d5b9",
+		                  "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" }
+		} );
+
+		// commitment tx with six outputs untrimmed (minimum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 648;
+
+		test_commitment!("304402203948f900a5506b8de36a4d8502f94f21dd84fd9c2314ab427d52feaa7a0a19f2022059b6a37a4adaa2c5419dc8aea63c6e2a2ec4c4bde46207f6dc1fcd22152fc6e5",
+		                 "3045022100b15f72908ba3382a34ca5b32519240a22300cc6015b6f9418635fb41f3d01d8802207adb331b9ed1575383dca0f2355e86c173802feecf8298fbea53b9d4610583e9",
+		                 "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", {
+
+		                  { 0,
+		                  "3045022100a031202f3be94678f0e998622ee95ebb6ada8da1e9a5110228b5e04a747351e4022010ca6a21e18314ed53cfaae3b1f51998552a61a468e596368829a50ce40110e0",
+		                  "304502210097e1873b57267730154595187a34949d3744f52933070c74757005e61ce2112e02204ecfba2aa42d4f14bdf8bad4206bb97217b702e6c433e0e1b0ce6587e6d46ec6",
+		                  "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" },
+
+		                  { 1,
+		                  "304402202361012a634aee7835c5ecdd6413dcffa8f404b7e77364c792cff984e4ee71e90220715c5e90baa08daa45a7439b1ee4fa4843ed77b19c058240b69406606d384124",
+		                  "3044022019de73b00f1d818fb388e83b2c8c31f6bce35ac624e215bc12f88f9dc33edf48022006ff814bb9f700ee6abc3294e146fac3efd4f13f0005236b41c0a946ee00c9ae",
+		                  "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" },
+
+		                  { 2,
+		                  "304402207e8e82cd71ed4febeb593732c260456836e97d81896153ecd2b3cf320ca6861702202dd4a30f68f98ced7cc56a36369ac1fdd978248c5ff4ed204fc00cc625532989",
+		                  "3045022100bd0be6100c4fd8f102ec220e1b053e4c4e2ecca25615490150007b40d314dc3902201a1e0ea266965b43164d9e6576f58fa6726d42883dd1c3996d2925c2e2260796",
+		                  "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" },
+
+		                  { 3,
+		                  "3044022024cd52e4198c8ae0e414a86d86b5a65ea7450f2eb4e783096736d93395eca5ce022078f0094745b45be4d4b2b04dd5978c9e66ba49109e5704403e84aaf5f387d6be",
+		                  "3045022100bbfb9d0a946d420807c86e985d636cceb16e71c3694ed186316251a00cbd807202207773223f9a337e145f64673825be9b30d07ef1542c82188b264bedcf7cda78c6",
+		                  "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" }
+		} );
+
+		// commitment tx with six outputs untrimmed (maximum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 2069;
+
+		test_commitment!("304502210090b96a2498ce0c0f2fadbec2aab278fed54c1a7838df793ec4d2c78d96ec096202204fdd439c50f90d483baa7b68feeef4bd33bc277695405447bcd0bfb2ca34d7bc",
+		                 "3045022100ad9a9bbbb75d506ca3b716b336ee3cf975dd7834fcf129d7dd188146eb58a8b4022061a759ee417339f7fe2ea1e8deb83abb6a74db31a09b7648a932a639cda23e33",
+		                 "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", {
+
+		                  { 0,
+		                  "3045022100f33513ee38abf1c582876f921f8fddc06acff48e04515532a32d3938de938ffd02203aa308a2c1863b7d6fdf53159a1465bf2e115c13152546cc5d74483ceaa7f699",
+		                  "3045022100a637902a5d4c9ba9e7c472a225337d5aac9e2e3f6744f76e237132e7619ba0400220035c60d784a031c0d9f6df66b7eab8726a5c25397399ee4aa960842059eb3f9d",
+		                  "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" },
+
+		                  { 1,
+		                  "3045022100ce07682cf4b90093c22dc2d9ab2a77ad6803526b655ef857221cc96af5c9e0bf02200f501cee22e7a268af40b555d15a8237c9f36ad67ef1841daf9f6a0267b1e6df",
+		                  "3045022100e57e46234f8782d3ff7aa593b4f7446fb5316c842e693dc63ee324fd49f6a1c302204a2f7b44c48bd26e1554422afae13153eb94b29d3687b733d18930615fb2db61",
+		                  "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" },
+
+		                  { 2,
+		                  "3045022100e3e35492e55f82ec0bc2f317ffd7a486d1f7024330fe9743c3559fc39f32ef0c02203d1d4db651fc388a91d5ad8ecdd8e83673063bc8eefe27cfd8c189090e3a23e0",
+		                  "3044022068613fb1b98eb3aec7f44c5b115b12343c2f066c4277c82b5f873dfe68f37f50022028109b4650f3f528ca4bfe9a467aff2e3e43893b61b5159157119d5d95cf1c18",
+		                  "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" },
+
+		                  { 3,
+		                  "304402207475aeb0212ef9bf5130b60937817ad88c9a87976988ef1f323f026148cc4a850220739fea17ad3257dcad72e509c73eebe86bee30b178467b9fdab213d631b109df",
+		                  "3045022100d315522e09e7d53d2a659a79cb67fef56d6c4bddf3f46df6772d0d20a7beb7c8022070bcc17e288607b6a72be0bd83368bb6d53488db266c1cdb4d72214e4f02ac33",
+		                  "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" }
+		} );
+
+		// commitment tx with five outputs untrimmed (minimum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 2070;
+
+		test_commitment!("304402204ca1ba260dee913d318271d86e10ca0f5883026fb5653155cff600fb40895223022037b145204b7054a40e08bb1fefbd826f827b40838d3e501423bcc57924bcb50c",
+		                 "3044022001014419b5ba00e083ac4e0a85f19afc848aacac2d483b4b525d15e2ae5adbfe022015ebddad6ee1e72b47cb09f3e78459da5be01ccccd95dceca0e056a00cc773c1",
+		                 "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", {
+
+		                  { 0,
+		                  "304402205f6b6d12d8d2529fb24f4445630566cf4abbd0f9330ab6c2bdb94222d6a2a0c502202f556258ae6f05b193749e4c541dfcc13b525a5422f6291f073f15617ba8579b",
+		                  "30440220150b11069454da70caf2492ded9e0065c9a57f25ac2a4c52657b1d15b6c6ed85022068a38833b603c8892717206383611bad210f1cbb4b1f87ea29c6c65b9e1cb3e5",
+		                  "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" },
+
+		                  { 1,
+		                  "3045022100f960dfb1c9aee7ce1437efa65b523e399383e8149790e05d8fed27ff6e42fe0002202fe8613e062ffe0b0c518cc4101fba1c6de70f64a5bcc7ae663f2efae43b8546",
+		                  "30450221009a6ed18e6873bc3644332a6ee21c152a5b102821865350df7a8c74451a51f9f2022050d801fb4895d7d7fbf452824c0168347f5c0cbe821cf6a97a63af5b8b2563c6",
+		                  "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" },
+
+		                  { 2,
+		                  "3045022100ae5fc7717ae684bc1fcf9020854e5dbe9842c9e7472879ac06ff95ac2bb10e4e022057728ada4c00083a3e65493fb5d50a232165948a1a0f530ef63185c2c8c56504",
+		                  "30440220408ad3009827a8fccf774cb285587686bfb2ed041f89a89453c311ce9c8ee0f902203c7392d9f8306d3a46522a66bd2723a7eb2628cb2d9b34d4c104f1766bf37502",
+		                  "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" }
+		} );
+
+		// commitment tx with five outputs untrimmed (maximum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 2194;
+
+		test_commitment!("304402204bb3d6e279d71d9da414c82de42f1f954267c762b2e2eb8b76bc3be4ea07d4b0022014febc009c5edc8c3fc5d94015de163200f780046f1c293bfed8568f08b70fb3",
+		                 "3044022072c2e2b1c899b2242656a537dde2892fa3801be0d6df0a87836c550137acde8302201654aa1974d37a829083c3ba15088689f30b56d6a4f6cb14c7bad0ee3116d398",
+		                 "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", {
+
+		                  { 0,
+		                  "3045022100939726680351a7856c1bc386d4a1f422c7d29bd7b56afc139570f508474e6c40022023175a799ccf44c017fbaadb924c40b2a12115a5b7d0dfd3228df803a2de8450",
+		                  "304502210099c98c2edeeee6ec0fb5f3bea8b79bb016a2717afa9b5072370f34382de281d302206f5e2980a995e045cf90a547f0752a7ee99d48547bc135258fe7bc07e0154301",
+		                  "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" },
+
+		                  { 1,
+		                  "3044022021bb883bf324553d085ba2e821cad80c28ef8b303dbead8f98e548783c02d1600220638f9ef2a9bba25869afc923f4b5dc38be3bb459f9efa5d869392d5f7779a4a0",
+		                  "3045022100fd85bd7697b89c08ec12acc8ba89b23090637d83abd26ca37e01ae93e67c367302202b551fe69386116c47f984aab9c8dfd25d864dcde5d3389cfbef2447a85c4b77",
+		                  "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" },
+
+		                  { 2,
+		                  "3045022100c9e6f0454aa598b905a35e641a70cc9f67b5f38cc4b00843a041238c4a9f1c4a0220260a2822a62da97e44583e837245995ca2e36781769c52f19e498efbdcca262b",
+		                  "30450221008a9f2ea24cd455c2b64c1472a5fa83865b0a5f49a62b661801e884cf2849af8302204d44180e50bf6adfcf1c1e581d75af91aba4e28681ce4a5ee5f3cbf65eca10f3",
+		                  "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" }
+		} );
+
+		// commitment tx with four outputs untrimmed (minimum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 2195;
+
+		test_commitment!("304402201a8c1b1f9671cd9e46c7323a104d7047cc48d3ee80d40d4512e0c72b8dc65666022066d7f9a2ce18c9eb22d2739ffcce05721c767f9b607622a31b6ea5793ddce403",
+		                 "3044022044d592025b610c0d678f65032e87035cdfe89d1598c522cc32524ae8172417c30220749fef9d5b2ae8cdd91ece442ba8809bc891efedae2291e578475f97715d1767",
+		                 "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", {
+
+		                  { 0,
+		                  "3045022100e57b845066a06ee7c2cbfc29eabffe52daa9bf6f6de760066d04df9f9b250e0002202ffb197f0e6e0a77a75a9aff27014bd3de83b7f748d7efef986abe655e1dd50e",
+		                  "3045022100ecc8c6529d0b2316d046f0f0757c1e1c25a636db168ec4f3aa1b9278df685dc0022067ae6b65e936f1337091f7b18a15935b608c5f2cdddb2f892ed0babfdd376d76",
+		                  "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" },
+
+		                  { 1,
+		                  "3045022100d193b7ecccad8057571620a0b1ffa6c48e9483311723b59cf536043b20bc51550220546d4bd37b3b101ecda14f6c907af46ec391abce1cd9c7ce22b1a62b534f2f2a",
+		                  "3044022014d66f11f9cacf923807eba49542076c5fe5cccf252fb08fe98c78ef3ca6ab5402201b290dbe043cc512d9d78de074a5a129b8759bc6a6c546b190d120b690bd6e82",
+		                  "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" }
+		} );
+
+		// commitment tx with four outputs untrimmed (maximum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 3702;
+
+		test_commitment!("304502210092a587aeb777f869e7ff0d7898ea619ee26a3dacd1f3672b945eea600be431100220077ee9eae3528d15251f2a52b607b189820e57a6ccfac8d1af502b132ee40169",
+		                 "3045022100e5efb73c32d32da2d79702299b6317de6fb24a60476e3855926d78484dd1b3c802203557cb66a42c944ef06e00bcc4da35a5bcb2f185aab0f8e403e519e1d66aaf75",
+		                 "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", {
+
+		                  { 0,
+		                  "304402206fa54c11f98c3bae1e93df43fc7affeb05b476bf8060c03e29c377c69bc08e8b0220672701cce50d5c379ff45a5d2cfe48ac44973adb066ac32608e21221d869bb89",
+		                  "304402206e36c683ebf2cb16bcef3d5439cf8b53cd97280a365ed8acd7abb85a8ba5f21c02206e8621edfc2a5766cbc96eb67fd501127ff163eb6b85518a39f7d4974aef126f",
+		                  "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" },
+
+		                  { 1,
+		                  "3044022057649739b0eb74d541ead0dfdb3d4b2c15aa192720031044c3434c67812e5ca902201e5ede42d960ae551707f4a6b34b09393cf4dee2418507daa022e3550dbb5817",
+		                  "304402207faad26678c8850e01b4a0696d60841f7305e1832b786110ee9075cb92ed14a30220516ef8ee5dfa80824ea28cbcec0dd95f8b847146257c16960db98507db15ffdc",
+		                  "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" }
+		} );
+
+		// commitment tx with three outputs untrimmed (minimum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 3703;
+
+		test_commitment!("3045022100b495d239772a237ff2cf354b1b11be152fd852704cb184e7356d13f2fb1e5e430220723db5cdb9cbd6ead7bfd3deb419cf41053a932418cbb22a67b581f40bc1f13e",
+		                 "304402201b736d1773a124c745586217a75bed5f66c05716fbe8c7db4fdb3c3069741cdd02205083f39c321c1bcadfc8d97e3c791a66273d936abac0c6a2fde2ed46019508e1",
+		                 "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", {
+
+		                  { 0,
+		                  "3045022100c34c61735f93f2e324cc873c3b248111ccf8f6db15d5969583757010d4ad2b4602207867bb919b2ddd6387873e425345c9b7fd18d1d66aba41f3607bc2896ef3c30a",
+		                  "3045022100988c143e2110067117d2321bdd4bd16ca1734c98b29290d129384af0962b634e02206c1b02478878c5f547018b833986578f90c3e9be669fe5788ad0072a55acbb05",
+		                  "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" }
+		} );
+
+		// commitment tx with three outputs untrimmed (maximum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 4914;
+
+		test_commitment!("3045022100b4b16d5f8cc9fc4c1aff48831e832a0d8990e133978a66e302c133550954a44d022073573ce127e2200d316f6b612803a5c0c97b8d20e1e44dbe2ac0dd2fb8c95244",
+		                 "3045022100d72638bc6308b88bb6d45861aae83e5b9ff6e10986546e13bce769c70036e2620220320be7c6d66d22f30b9fcd52af66531505b1310ca3b848c19285b38d8a1a8c19",
+		                 "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", {
+
+		                  { 0,
+		                  "3045022100f43591c156038ba217756006bb3c55f7d113a325cdd7d9303c82115372858d68022016355b5aadf222bc8d12e426c75f4a03423917b2443a103eb2a498a3a2234374",
+		                  "30440220585dee80fafa264beac535c3c0bb5838ac348b156fdc982f86adc08dfc9bfd250220130abb82f9f295cc9ef423dcfef772fde2acd85d9df48cc538981d26a10a9c10",
+		                  "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" }
+		} );
+
+		// commitment tx with two outputs untrimmed (minimum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 4915;
+
+		test_commitment!("304402203a286936e74870ca1459c700c71202af0381910a6bfab687ef494ef1bc3e02c902202506c362d0e3bee15e802aa729bf378e051644648253513f1c085b264cc2a720",
+		                 "30450221008a953551f4d67cb4df3037207fc082ddaf6be84d417b0bd14c80aab66f1b01a402207508796dc75034b2dee876fe01dc05a08b019f3e5d689ac8842ade2f1befccf5",
+		                 "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", {});
+
+		// commitment tx with two outputs untrimmed (maximum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 9651180;
+
+		test_commitment!("304402200a8544eba1d216f5c5e530597665fa9bec56943c0f66d98fc3d028df52d84f7002201e45fa5c6bc3a506cc2553e7d1c0043a9811313fc39c954692c0d47cfce2bbd3",
+		                 "3045022100e11b638c05c650c2f63a421d36ef8756c5ce82f2184278643520311cdf50aa200220259565fb9c8e4a87ccaf17f27a3b9ca4f20625754a0920d9c6c239d8156a11de",
+		                 "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", {});
+
+		// commitment tx with one output untrimmed (minimum feerate)
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 9651181;
+
+		test_commitment!("304402202ade0142008309eb376736575ad58d03e5b115499709c6db0b46e36ff394b492022037b63d78d66404d6504d4c4ac13be346f3d1802928a6d3ad95a6a944227161a2",
+		                 "304402207e8d51e0c570a5868a78414f4e0cbfaed1106b171b9581542c30718ee4eb95ba02203af84194c97adf98898c9afe2f2ed4a7f8dba05a2dfab28ac9d9c604aa49a379",
+		                 "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", {});
+
+		// commitment tx with fee greater than funder amount
+		chan.value_to_self_msat = 6993000000; // 7000000000 - 7000000
+		chan.feerate_per_kw = 9651936;
+
+		test_commitment!("304402202ade0142008309eb376736575ad58d03e5b115499709c6db0b46e36ff394b492022037b63d78d66404d6504d4c4ac13be346f3d1802928a6d3ad95a6a944227161a2",
+		                 "304402207e8d51e0c570a5868a78414f4e0cbfaed1106b171b9581542c30718ee4eb95ba02203af84194c97adf98898c9afe2f2ed4a7f8dba05a2dfab28ac9d9c604aa49a379",
+		                 "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", {});
 	}
 
 	#[test]