diff --git a/lightning/src/ln/channel.rs b/lightning/src/ln/channel.rs
index 4529be57d82..7a7db8db075 100644
--- a/lightning/src/ln/channel.rs
+++ b/lightning/src/ln/channel.rs
@@ -43,7 +43,7 @@ pub struct ChannelValueStat {
 	pub pending_outbound_htlcs_amount_msat: u64,
 	pub pending_inbound_htlcs_amount_msat: u64,
 	pub holding_cell_outbound_amount_msat: u64,
-	pub their_max_htlc_value_in_flight_msat: u64, // outgoing
+	pub counterparty_max_htlc_value_in_flight_msat: u64, // outgoing
 }
 
 enum InboundHTLCRemovalReason {
@@ -242,9 +242,9 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 	latest_monitor_update_id: u64,
 
 	#[cfg(not(test))]
-	local_keys: ChanSigner,
+	our_keys: ChanSigner,
 	#[cfg(test)]
-	pub(super) local_keys: ChanSigner,
+	pub(super) our_keys: ChanSigner,
 	shutdown_pubkey: PublicKey,
 	destination_script: Script,
 
@@ -252,8 +252,8 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 	// generation start at 0 and count up...this simplifies some parts of implementation at the
 	// cost of others, but should really just be changed.
 
-	cur_local_commitment_transaction_number: u64,
-	cur_remote_commitment_transaction_number: u64,
+	cur_our_commtment_transaction_number: u64,
+	cur_counterparty_commitment_transaction_number: u64,
 	value_to_self_msat: u64, // Excluding all pending_htlcs, excluding fees
 	pending_inbound_htlcs: Vec<InboundHTLCOutput>,
 	pending_outbound_htlcs: Vec<OutboundHTLCOutput>,
@@ -291,17 +291,17 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 	// is received. holding_cell_update_fee is updated when there are additional
 	// update_fee() during ChannelState::AwaitingRemoteRevoke.
 	holding_cell_update_fee: Option<u64>,
-	next_local_htlc_id: u64,
-	next_remote_htlc_id: u64,
+	next_our_htlc_id: u64,
+	next_counterparty_htlc_id: u64,
 	update_time_counter: u32,
 	feerate_per_kw: u64,
 
 	#[cfg(debug_assertions)]
 	/// Max to_local and to_remote outputs in a locally-generated commitment transaction
-	max_commitment_tx_output_local: ::std::sync::Mutex<(u64, u64)>,
+	max_commitment_tx_output_our: ::std::sync::Mutex<(u64, u64)>,
 	#[cfg(debug_assertions)]
 	/// Max to_local and to_remote outputs in a remote-generated commitment transaction
-	max_commitment_tx_output_remote: ::std::sync::Mutex<(u64, u64)>,
+	max_commitment_tx_output_counterparty: ::std::sync::Mutex<(u64, u64)>,
 
 	last_sent_closing_fee: Option<(u64, u64, Signature)>, // (feerate, fee, our_sig)
 
@@ -318,38 +318,38 @@ pub(super) struct Channel<ChanSigner: ChannelKeys> {
 	pub(super) last_block_connected: BlockHash,
 	funding_tx_confirmations: u64,
 
-	their_dust_limit_satoshis: u64,
+	counterparty_dust_limit_satoshis: u64,
 	#[cfg(test)]
 	pub(super) our_dust_limit_satoshis: u64,
 	#[cfg(not(test))]
 	our_dust_limit_satoshis: u64,
 	#[cfg(test)]
-	pub(super) their_max_htlc_value_in_flight_msat: u64,
+	pub(super) counterparty_max_htlc_value_in_flight_msat: u64,
 	#[cfg(not(test))]
-	their_max_htlc_value_in_flight_msat: u64,
+	counterparty_max_htlc_value_in_flight_msat: u64,
 	//get_our_max_htlc_value_in_flight_msat(): u64,
 	/// minimum channel reserve for self to maintain - set by them.
-	local_channel_reserve_satoshis: u64,
+	our_channel_reserve_satoshis: u64,
 	// get_remote_channel_reserve_satoshis(channel_value_sats: u64): u64
-	their_htlc_minimum_msat: u64,
+	counterparty_htlc_minimum_msat: u64,
 	our_htlc_minimum_msat: u64,
-	their_to_self_delay: u16,
+	counterparty_to_self_delay: u16,
 	our_to_self_delay: u16,
 	#[cfg(test)]
-	pub their_max_accepted_htlcs: u16,
+	pub counterparty_max_accepted_htlcs: u16,
 	#[cfg(not(test))]
-	their_max_accepted_htlcs: u16,
+	counterparty_max_accepted_htlcs: u16,
 	//implied by OUR_MAX_HTLCS: our_max_accepted_htlcs: u16,
 	minimum_depth: u32,
 
-	their_pubkeys: Option<ChannelPublicKeys>,
+	counterparty_pubkeys: Option<ChannelPublicKeys>,
 
-	their_cur_commitment_point: Option<PublicKey>,
+	counterparty_cur_commitment_point: Option<PublicKey>,
 
-	their_prev_commitment_point: Option<PublicKey>,
-	their_node_id: PublicKey,
+	counterparty_prev_commitment_point: Option<PublicKey>,
+	counterparty_node_id: PublicKey,
 
-	their_shutdown_scriptpubkey: Option<Script>,
+	counterparty_shutdown_scriptpubkey: Option<Script>,
 
 	/// Used exclusively to broadcast the latest local state, mostly a historical quirk that this
 	/// is here:
@@ -428,7 +428,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	}
 
 	// Constructors:
-	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, config: &UserConfig) -> Result<Channel<ChanSigner>, APIError>
+	pub fn new_outbound<K: Deref, F: Deref>(fee_estimator: &F, keys_provider: &K, counterparty_node_id: PublicKey, channel_value_satoshis: u64, push_msat: u64, user_id: u64, config: &UserConfig) -> Result<Channel<ChanSigner>, APIError>
 	where K::Target: KeysInterface<ChanKeySigner = ChanSigner>,
 	      F::Target: FeeEstimator,
 	{
@@ -465,12 +465,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			latest_monitor_update_id: 0,
 
-			local_keys: chan_keys,
+			our_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,
+			cur_our_commtment_transaction_number: INITIAL_COMMITMENT_NUMBER,
+			cur_counterparty_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
 			value_to_self_msat: channel_value_satoshis * 1000 - push_msat,
 
 			pending_inbound_htlcs: Vec::new(),
@@ -478,8 +478,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			holding_cell_htlc_updates: Vec::new(),
 			pending_update_fee: None,
 			holding_cell_update_fee: None,
-			next_local_htlc_id: 0,
-			next_remote_htlc_id: 0,
+			next_our_htlc_id: 0,
+			next_counterparty_htlc_id: 0,
 			update_time_counter: 1,
 
 			resend_order: RAACommitmentOrder::CommitmentFirst,
@@ -491,9 +491,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			monitor_pending_failures: Vec::new(),
 
 			#[cfg(debug_assertions)]
-			max_commitment_tx_output_local: ::std::sync::Mutex::new((channel_value_satoshis * 1000 - push_msat, push_msat)),
+			max_commitment_tx_output_our: ::std::sync::Mutex::new((channel_value_satoshis * 1000 - push_msat, push_msat)),
 			#[cfg(debug_assertions)]
-			max_commitment_tx_output_remote: ::std::sync::Mutex::new((channel_value_satoshis * 1000 - push_msat, push_msat)),
+			max_commitment_tx_output_counterparty: ::std::sync::Mutex::new((channel_value_satoshis * 1000 - push_msat, push_msat)),
 
 			last_sent_closing_fee: None,
 
@@ -504,24 +504,24 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			funding_tx_confirmations: 0,
 
 			feerate_per_kw: feerate,
-			their_dust_limit_satoshis: 0,
+			counterparty_dust_limit_satoshis: 0,
 			our_dust_limit_satoshis: Channel::<ChanSigner>::derive_our_dust_limit_satoshis(background_feerate),
-			their_max_htlc_value_in_flight_msat: 0,
-			local_channel_reserve_satoshis: 0,
-			their_htlc_minimum_msat: 0,
+			counterparty_max_htlc_value_in_flight_msat: 0,
+			our_channel_reserve_satoshis: 0,
+			counterparty_htlc_minimum_msat: 0,
 			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,
+			counterparty_to_self_delay: 0,
 			our_to_self_delay: config.own_channel_config.our_to_self_delay,
-			their_max_accepted_htlcs: 0,
+			counterparty_max_accepted_htlcs: 0,
 			minimum_depth: 0, // Filled in in accept_channel
 
-			their_pubkeys: None,
-			their_cur_commitment_point: None,
+			counterparty_pubkeys: None,
+			counterparty_cur_commitment_point: None,
 
-			their_prev_commitment_point: None,
-			their_node_id: their_node_id,
+			counterparty_prev_commitment_point: None,
+			counterparty_node_id,
 
-			their_shutdown_scriptpubkey: None,
+			counterparty_shutdown_scriptpubkey: None,
 
 			channel_monitor: None,
 			commitment_secrets: CounterpartyCommitmentSecrets::new(),
@@ -544,19 +544,19 @@ 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<K: Deref, F: Deref>(fee_estimator: &F, keys_provider: &K, their_node_id: PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel, user_id: u64, config: &UserConfig) -> Result<Channel<ChanSigner>, ChannelError>
+	pub fn new_from_req<K: Deref, F: Deref>(fee_estimator: &F, keys_provider: &K, counterparty_node_id: PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel, user_id: u64, 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 {
+		let counterparty_pubkeys = ChannelPublicKeys {
 			funding_pubkey: msg.funding_pubkey,
 			revocation_basepoint: msg.revocation_basepoint,
 			payment_point: msg.payment_point,
 			delayed_payment_basepoint: msg.delayed_payment_basepoint,
 			htlc_basepoint: msg.htlc_basepoint
 		};
-		chan_keys.set_remote_channel_pubkeys(&their_pubkeys);
+		chan_keys.set_remote_channel_pubkeys(&counterparty_pubkeys);
 		let mut local_config = (*config).channel_options.clone();
 
 		if config.own_channel_config.our_to_self_delay < BREAKDOWN_TIMEOUT {
@@ -619,14 +619,14 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		// Convert things into internal flags and prep our state:
 
-		let their_announce = if (msg.channel_flags & 1) == 1 { true } else { false };
+		let announce = if (msg.channel_flags & 1) == 1 { true } else { false };
 		if config.peer_channel_config_limits.force_announced_channel_preference {
-			if local_config.announced_channel != their_announce {
+			if local_config.announced_channel != announce {
 				return Err(ChannelError::Close("Peer tried to open channel but their announcement preference is different from ours"));
 			}
 		}
 		// we either accept their preference or the preferences match
-		local_config.announced_channel = their_announce;
+		local_config.announced_channel = announce;
 
 		let background_feerate = fee_estimator.get_est_sat_per_1000_weight(ConfirmationTarget::Background);
 
@@ -655,7 +655,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Insufficient funding amount for initial commitment"));
 		}
 
-		let their_shutdown_scriptpubkey = if their_features.supports_upfront_shutdown_script() {
+		let counterparty_shutdown_scriptpubkey = if their_features.supports_upfront_shutdown_script() {
 			match &msg.shutdown_scriptpubkey {
 				&OptionalField::Present(ref script) => {
 					// Peer is signaling upfront_shutdown and has provided a non-accepted scriptpubkey format. We enforce it while receiving shutdown msg
@@ -687,12 +687,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			latest_monitor_update_id: 0,
 
-			local_keys: chan_keys,
+			our_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,
+			cur_our_commtment_transaction_number: INITIAL_COMMITMENT_NUMBER,
+			cur_counterparty_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
 			value_to_self_msat: msg.push_msat,
 
 			pending_inbound_htlcs: Vec::new(),
@@ -700,8 +700,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			holding_cell_htlc_updates: Vec::new(),
 			pending_update_fee: None,
 			holding_cell_update_fee: None,
-			next_local_htlc_id: 0,
-			next_remote_htlc_id: 0,
+			next_our_htlc_id: 0,
+			next_counterparty_htlc_id: 0,
 			update_time_counter: 1,
 
 			resend_order: RAACommitmentOrder::CommitmentFirst,
@@ -713,9 +713,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			monitor_pending_failures: Vec::new(),
 
 			#[cfg(debug_assertions)]
-			max_commitment_tx_output_local: ::std::sync::Mutex::new((msg.push_msat, msg.funding_satoshis * 1000 - msg.push_msat)),
+			max_commitment_tx_output_our: ::std::sync::Mutex::new((msg.push_msat, msg.funding_satoshis * 1000 - msg.push_msat)),
 			#[cfg(debug_assertions)]
-			max_commitment_tx_output_remote: ::std::sync::Mutex::new((msg.push_msat, msg.funding_satoshis * 1000 - msg.push_msat)),
+			max_commitment_tx_output_counterparty: ::std::sync::Mutex::new((msg.push_msat, msg.funding_satoshis * 1000 - msg.push_msat)),
 
 			last_sent_closing_fee: None,
 
@@ -727,24 +727,24 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			feerate_per_kw: msg.feerate_per_kw as u64,
 			channel_value_satoshis: msg.funding_satoshis,
-			their_dust_limit_satoshis: msg.dust_limit_satoshis,
+			counterparty_dust_limit_satoshis: msg.dust_limit_satoshis,
 			our_dust_limit_satoshis: our_dust_limit_satoshis,
-			their_max_htlc_value_in_flight_msat: cmp::min(msg.max_htlc_value_in_flight_msat, msg.funding_satoshis * 1000),
-			local_channel_reserve_satoshis: msg.channel_reserve_satoshis,
-			their_htlc_minimum_msat: msg.htlc_minimum_msat,
+			counterparty_max_htlc_value_in_flight_msat: cmp::min(msg.max_htlc_value_in_flight_msat, msg.funding_satoshis * 1000),
+			our_channel_reserve_satoshis: msg.channel_reserve_satoshis,
+			counterparty_htlc_minimum_msat: msg.htlc_minimum_msat,
 			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,
+			counterparty_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,
+			counterparty_max_accepted_htlcs: msg.max_accepted_htlcs,
 			minimum_depth: config.own_channel_config.minimum_depth,
 
-			their_pubkeys: Some(their_pubkeys),
-			their_cur_commitment_point: Some(msg.first_per_commitment_point),
+			counterparty_pubkeys: Some(counterparty_pubkeys),
+			counterparty_cur_commitment_point: Some(msg.first_per_commitment_point),
 
-			their_prev_commitment_point: None,
-			their_node_id: their_node_id,
+			counterparty_prev_commitment_point: None,
+			counterparty_node_id,
 
-			their_shutdown_scriptpubkey,
+			counterparty_shutdown_scriptpubkey,
 
 			channel_monitor: None,
 			commitment_secrets: CounterpartyCommitmentSecrets::new(),
@@ -758,7 +758,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	// Utilities to derive keys:
 
 	fn build_local_commitment_secret(&self, idx: u64) -> SecretKey {
-		let res = chan_utils::build_commitment_secret(self.local_keys.commitment_seed(), idx);
+		let res = chan_utils::build_commitment_secret(self.our_keys.commitment_seed(), idx);
 		SecretKey::from_slice(&res).unwrap()
 	}
 
@@ -766,14 +766,14 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 	fn get_commitment_transaction_number_obscure_factor(&self) -> u64 {
 		let mut sha = Sha256::engine();
-		let our_payment_point = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_key());
+		let our_payment_point = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.payment_key());
 
-		let their_payment_point = &self.their_pubkeys.as_ref().unwrap().payment_point.serialize();
+		let payment_point = &self.counterparty_pubkeys.as_ref().unwrap().payment_point.serialize();
 		if self.channel_outbound {
 			sha.input(&our_payment_point.serialize());
-			sha.input(their_payment_point);
+			sha.input(payment_point);
 		} else {
-			sha.input(their_payment_point);
+			sha.input(payment_point);
 			sha.input(&our_payment_point.serialize());
 		}
 		let res = Sha256::from_engine(sha).into_inner();
@@ -821,7 +821,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let mut txouts: Vec<(TxOut, Option<(HTLCOutputInCommitment, Option<&HTLCSource>)>)> = Vec::with_capacity(self.pending_inbound_htlcs.len() + self.pending_outbound_htlcs.len() + 2);
 		let mut included_dust_htlcs: Vec<(HTLCOutputInCommitment, Option<&HTLCSource>)> = Vec::new();
 
-		let dust_limit_satoshis = if local { self.our_dust_limit_satoshis } else { self.their_dust_limit_satoshis };
+		let dust_limit_satoshis = if local { self.our_dust_limit_satoshis } else { self.counterparty_dust_limit_satoshis };
 		let mut remote_htlc_total_msat = 0;
 		let mut local_htlc_total_msat = 0;
 		let mut value_to_self_msat_offset = 0;
@@ -939,11 +939,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			// Make sure that the to_self/to_remote is always either past the appropriate
 			// channel_reserve *or* it is making progress towards it.
 			let mut max_commitment_tx_output = if generated_by_local {
-				self.max_commitment_tx_output_local.lock().unwrap()
+				self.max_commitment_tx_output_our.lock().unwrap()
 			} else {
-				self.max_commitment_tx_output_remote.lock().unwrap()
+				self.max_commitment_tx_output_counterparty.lock().unwrap()
 			};
-			debug_assert!(max_commitment_tx_output.0 <= value_to_self_msat as u64 || value_to_self_msat / 1000 >= self.local_channel_reserve_satoshis as i64);
+			debug_assert!(max_commitment_tx_output.0 <= value_to_self_msat as u64 || value_to_self_msat / 1000 >= self.our_channel_reserve_satoshis as i64);
 			max_commitment_tx_output.0 = cmp::max(max_commitment_tx_output.0, value_to_self_msat as u64);
 			debug_assert!(max_commitment_tx_output.1 <= value_to_remote_msat as u64 || value_to_remote_msat / 1000 >= Channel::<ChanSigner>::get_remote_channel_reserve_satoshis(self.channel_value_satoshis) as i64);
 			max_commitment_tx_output.1 = cmp::max(max_commitment_tx_output.1, value_to_remote_msat as u64);
@@ -963,7 +963,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			log_trace!(logger, "   ...including {} output with value {}", if local { "to_local" } else { "to_remote" }, value_to_a);
 			txouts.push((TxOut {
 				script_pubkey: chan_utils::get_revokeable_redeemscript(&keys.revocation_key,
-				                                                       if local { self.their_to_self_delay } else { self.our_to_self_delay },
+				                                                       if local { self.counterparty_to_self_delay } else { self.our_to_self_delay },
 				                                                       &keys.local_delayed_payment_key).to_v0_p2wsh(),
 				value: value_to_a as u64
 			}, None));
@@ -972,9 +972,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		if value_to_b >= (dust_limit_satoshis as i64) {
 			log_trace!(logger, "   ...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
+				self.counterparty_pubkeys.as_ref().unwrap().payment_point
 			} else {
-				self.local_keys.pubkeys().payment_point
+				self.our_keys.pubkeys().payment_point
 			}.serialize();
 			txouts.push((TxOut {
 				script_pubkey: Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0)
@@ -1060,7 +1060,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		if !skip_remote_output && value_to_remote as u64 > self.our_dust_limit_satoshis {
 			txouts.push((TxOut {
-				script_pubkey: self.their_shutdown_scriptpubkey.clone().unwrap(),
+				script_pubkey: self.counterparty_shutdown_scriptpubkey.clone().unwrap(),
 				value: value_to_remote as u64
 			}, ()));
 		}
@@ -1095,11 +1095,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// TODO Some magic rust shit to compile-time check this?
 	fn build_local_transaction_keys(&self, commitment_number: u64) -> Result<TxCreationKeys, ChannelError> {
 		let per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(commitment_number));
-		let delayed_payment_base = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.delayed_payment_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();
+		let delayed_payment_base = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.delayed_payment_base_key());
+		let htlc_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.htlc_base_key());
+		let counterparty_pubkeys = self.counterparty_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.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, &counterparty_pubkeys.revocation_basepoint, &counterparty_pubkeys.htlc_basepoint), "Local tx keys generation got bogus keys"))
 	}
 
 	#[inline]
@@ -1109,26 +1109,26 @@ 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 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();
+		let revocation_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.revocation_base_key());
+		let htlc_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.htlc_base_key());
+		let counterparty_pubkeys = self.counterparty_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, &htlc_basepoint), "Remote tx keys generation got bogus keys"))
+		Ok(secp_check!(TxCreationKeys::new(&self.secp_ctx, &self.counterparty_cur_commitment_point.unwrap(), &counterparty_pubkeys.delayed_payment_basepoint, &counterparty_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
 	/// pays to get_funding_redeemscript().to_v0_p2wsh()).
 	/// Panics if called before accept_channel/new_from_req
 	pub fn get_funding_redeemscript(&self) -> Script {
-		let our_funding_key = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key());
-		make_funding_redeemscript(&our_funding_key, self.their_funding_pubkey())
+		let our_funding_key = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key());
+		make_funding_redeemscript(&our_funding_key, self.counterparty_funding_pubkey())
 	}
 
 	/// 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: &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.local_delayed_payment_key, &keys.revocation_key)
+		chan_utils::build_htlc_transaction(prev_hash, feerate_per_kw, if local { self.counterparty_to_self_delay } else { self.our_to_self_delay }, htlc, &keys.local_delayed_payment_key, &keys.revocation_key)
 	}
 
 	/// Per HTLC, only one get_update_fail_htlc or get_update_fulfill_htlc call may be made.
@@ -1396,7 +1396,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("We consider the minimum depth to be unreasonably large"));
 		}
 
-		let their_shutdown_scriptpubkey = if their_features.supports_upfront_shutdown_script() {
+		let counterparty_shutdown_scriptpubkey = if their_features.supports_upfront_shutdown_script() {
 			match &msg.shutdown_scriptpubkey {
 				&OptionalField::Present(ref script) => {
 					// Peer is signaling upfront_shutdown and has provided a non-accepted scriptpubkey format. We enforce it while receiving shutdown msg
@@ -1417,15 +1417,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 		} else { None };
 
-		self.their_dust_limit_satoshis = msg.dust_limit_satoshis;
-		self.their_max_htlc_value_in_flight_msat = cmp::min(msg.max_htlc_value_in_flight_msat, self.channel_value_satoshis * 1000);
-		self.local_channel_reserve_satoshis = msg.channel_reserve_satoshis;
-		self.their_htlc_minimum_msat = msg.htlc_minimum_msat;
-		self.their_to_self_delay = msg.to_self_delay;
-		self.their_max_accepted_htlcs = msg.max_accepted_htlcs;
+		self.counterparty_dust_limit_satoshis = msg.dust_limit_satoshis;
+		self.counterparty_max_htlc_value_in_flight_msat = cmp::min(msg.max_htlc_value_in_flight_msat, self.channel_value_satoshis * 1000);
+		self.our_channel_reserve_satoshis = msg.channel_reserve_satoshis;
+		self.counterparty_htlc_minimum_msat = msg.htlc_minimum_msat;
+		self.counterparty_to_self_delay = msg.to_self_delay;
+		self.counterparty_max_accepted_htlcs = msg.max_accepted_htlcs;
 		self.minimum_depth = msg.minimum_depth;
 
-		let their_pubkeys = ChannelPublicKeys {
+		let counterparty_pubkeys = ChannelPublicKeys {
 			funding_pubkey: msg.funding_pubkey,
 			revocation_basepoint: msg.revocation_basepoint,
 			payment_point: msg.payment_point,
@@ -1433,11 +1433,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			htlc_basepoint: msg.htlc_basepoint
 		};
 
-		self.local_keys.set_remote_channel_pubkeys(&their_pubkeys);
-		self.their_pubkeys = Some(their_pubkeys);
+		self.our_keys.set_remote_channel_pubkeys(&counterparty_pubkeys);
+		self.counterparty_pubkeys = Some(counterparty_pubkeys);
 
-		self.their_cur_commitment_point = Some(msg.first_per_commitment_point);
-		self.their_shutdown_scriptpubkey = their_shutdown_scriptpubkey;
+		self.counterparty_cur_commitment_point = Some(msg.first_per_commitment_point);
+		self.counterparty_shutdown_scriptpubkey = counterparty_shutdown_scriptpubkey;
 
 		self.channel_state = ChannelState::OurInitSent as u32 | ChannelState::TheirInitSent as u32;
 
@@ -1447,27 +1447,27 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	fn funding_created_signature<L: Deref>(&mut self, sig: &Signature, logger: &L) -> Result<(Transaction, LocalCommitmentTransaction, Signature), ChannelError> where L::Target: Logger {
 		let funding_script = self.get_funding_redeemscript();
 
-		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, logger).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)[..]);
+		let our_keys = self.build_local_transaction_keys(self.cur_our_commtment_transaction_number)?;
+		let our_initial_commitment_tx = self.build_commitment_transaction(self.cur_our_commtment_transaction_number, &our_keys, true, false, self.feerate_per_kw, logger).0;
+		let our_sighash = hash_to_message!(&bip143::SighashComponents::new(&our_initial_commitment_tx).sighash_all(&our_initial_commitment_tx.input[0], &funding_script, self.channel_value_satoshis)[..]);
 
-		// They sign the "local" commitment transaction...
-		log_trace!(logger, "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");
+		// They sign "our" commitment transaction...
+		log_trace!(logger, "Checking funding_created tx signature {} by key {} against tx {} (sighash {}) with redeemscript {}", log_bytes!(sig.serialize_compact()[..]), log_bytes!(self.counterparty_funding_pubkey().serialize()), encode::serialize_hex(&our_initial_commitment_tx), log_bytes!(our_sighash[..]), encode::serialize_hex(&funding_script));
+		secp_check!(self.secp_ctx.verify(&our_sighash, &sig, self.counterparty_funding_pubkey()), "Invalid funding_created signature from peer");
 
-		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 our_tx = LocalCommitmentTransaction::new_missing_local_sig(our_initial_commitment_tx, sig.clone(), &PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key()), self.counterparty_funding_pubkey(), our_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, logger).0;
-		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)
+		let counterparty_keys = self.build_remote_transaction_keys()?;
+		let counterparty_initial_commitment_tx = self.build_commitment_transaction(self.cur_counterparty_commitment_transaction_number, &counterparty_keys, false, false, self.feerate_per_kw, logger).0;
+		let counterparty_signature = self.our_keys.sign_remote_commitment(self.feerate_per_kw, &counterparty_initial_commitment_tx, &counterparty_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))
+		// We sign "counterparty" commitment transaction, allowing them to broadcast the tx if they wish.
+		Ok((counterparty_initial_commitment_tx, our_tx, counterparty_signature))
 	}
 
-	fn their_funding_pubkey(&self) -> &PublicKey {
-		&self.their_pubkeys.as_ref().expect("their_funding_pubkey() only allowed after accept_channel").funding_pubkey
+	fn counterparty_funding_pubkey(&self) -> &PublicKey {
+		&self.counterparty_pubkeys.as_ref().expect("funding_pubkey() only allowed after accept_channel").funding_pubkey
 	}
 
 	pub fn funding_created<L: Deref>(&mut self, msg: &msgs::FundingCreated, logger: &L) -> Result<(msgs::FundingSigned, ChannelMonitor<ChanSigner>), ChannelError> where L::Target: Logger {
@@ -1481,15 +1481,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Received funding_created after we got the channel!"));
 		}
 		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 {
+				self.cur_counterparty_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
+				self.cur_our_commtment_transaction_number != INITIAL_COMMITMENT_NUMBER {
 			panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
 		}
 
 		let funding_txo = OutPoint{ txid: msg.funding_txid, index: msg.funding_output_index };
 		self.funding_txo = Some(funding_txo.clone());
 
-		let (remote_initial_commitment_tx, local_initial_commitment_tx, our_signature) = match self.funding_created_signature(&msg.signature, logger) {
+		let (counterparty_initial_commitment_tx, our_initial_commitment_tx, our_signature) = match self.funding_created_signature(&msg.signature, logger) {
 			Ok(res) => res,
 			Err(e) => {
 				self.funding_txo = None;
@@ -1499,20 +1499,20 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		// Now that we're past error-generating stuff, update our local state:
 
-		let their_pubkeys = self.their_pubkeys.as_ref().unwrap();
+		let counterparty_pubkeys = self.counterparty_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(),
+				let mut channel_monitor = ChannelMonitor::new(self.our_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,
+				                                              &counterparty_pubkeys.htlc_basepoint, &counterparty_pubkeys.delayed_payment_basepoint,
+				                                              self.counterparty_to_self_delay, funding_redeemscript.clone(), self.channel_value_satoshis,
 				                                              self.get_commitment_transaction_number_obscure_factor(),
-				                                              local_initial_commitment_tx.clone());
+				                                              our_initial_commitment_tx.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(), logger);
+				channel_monitor.provide_latest_remote_commitment_tx_info(&counterparty_initial_commitment_tx, Vec::new(), self.cur_counterparty_commitment_transaction_number, self.counterparty_cur_commitment_point.unwrap(), logger);
 				channel_monitor
 			} }
 		}
@@ -1522,8 +1522,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		self.channel_state = ChannelState::FundingSent as u32;
 		self.channel_id = funding_txo.to_channel_id();
-		self.cur_remote_commitment_transaction_number -= 1;
-		self.cur_local_commitment_transaction_number -= 1;
+		self.cur_counterparty_commitment_transaction_number -= 1;
+		self.cur_our_commtment_transaction_number -= 1;
 
 		Ok((msgs::FundingSigned {
 			channel_id: self.channel_id,
@@ -1541,43 +1541,43 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Received funding_signed in strange state!"));
 		}
 		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 {
+				self.cur_counterparty_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
+				self.cur_our_commtment_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, logger).0;
+		let counterparty_keys = self.build_remote_transaction_keys()?;
+		let counterparty_initial_commitment_tx = self.build_commitment_transaction(self.cur_counterparty_commitment_transaction_number, &counterparty_keys, false, false, self.feerate_per_kw, logger).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, logger).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)[..]);
+		let our_keys = self.build_local_transaction_keys(self.cur_our_commtment_transaction_number)?;
+		let our_initial_commitment_tx = self.build_commitment_transaction(self.cur_our_commtment_transaction_number, &our_keys, true, false, self.feerate_per_kw, logger).0;
+		let our_sighash = hash_to_message!(&bip143::SighashComponents::new(&our_initial_commitment_tx).sighash_all(&our_initial_commitment_tx.input[0], &funding_script, self.channel_value_satoshis)[..]);
 
-		let their_funding_pubkey = &self.their_pubkeys.as_ref().unwrap().funding_pubkey;
+		let funding_pubkey = &self.counterparty_pubkeys.as_ref().unwrap().funding_pubkey;
 
 		// They sign the "local" commitment transaction, allowing us to broadcast the tx if we wish.
-		if let Err(_) = self.secp_ctx.verify(&local_sighash, &msg.signature, their_funding_pubkey) {
+		if let Err(_) = self.secp_ctx.verify(&our_sighash, &msg.signature, funding_pubkey) {
 			return Err(ChannelError::Close("Invalid funding_signed signature from peer"));
 		}
 
-		let their_pubkeys = self.their_pubkeys.as_ref().unwrap();
+		let counterparty_pubkeys = self.counterparty_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(),
+				let our_commitment_tx = LocalCommitmentTransaction::new_missing_local_sig(our_initial_commitment_tx.clone(), msg.signature.clone(), &PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key()), funding_pubkey, our_keys.clone(), self.feerate_per_kw, Vec::new());
+				let mut channel_monitor = ChannelMonitor::new(self.our_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,
+				                                              &counterparty_pubkeys.htlc_basepoint, &counterparty_pubkeys.delayed_payment_basepoint,
+				                                              self.counterparty_to_self_delay, funding_redeemscript.clone(), self.channel_value_satoshis,
 				                                              self.get_commitment_transaction_number_obscure_factor(),
-				                                              local_commitment_tx);
+				                                              our_commitment_tx);
 
-				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(), logger);
+				channel_monitor.provide_latest_remote_commitment_tx_info(&counterparty_initial_commitment_tx, Vec::new(), self.cur_counterparty_commitment_transaction_number, self.counterparty_cur_commitment_point.unwrap(), logger);
 
 				channel_monitor
 			} }
@@ -1588,8 +1588,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		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;
+		self.cur_our_commtment_transaction_number -= 1;
+		self.cur_counterparty_commitment_transaction_number -= 1;
 
 		Ok(channel_monitor)
 	}
@@ -1608,12 +1608,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			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 &&
-				 self.cur_remote_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1) ||
+				 self.cur_our_commtment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 &&
+				 self.cur_counterparty_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1) ||
 				// If we reconnected before sending our funding locked they may still resend theirs:
 				(self.channel_state & (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) ==
 				                      (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32)) {
-			if self.their_cur_commitment_point != Some(msg.next_per_commitment_point) {
+			if self.counterparty_cur_commitment_point != Some(msg.next_per_commitment_point) {
 				return Err(ChannelError::Close("Peer sent a reconnect funding_locked with a different point"));
 			}
 			// They probably disconnected/reconnected and re-sent the funding_locked, which is required
@@ -1622,8 +1622,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Peer sent a funding_locked at a strange time"));
 		}
 
-		self.their_prev_commitment_point = self.their_cur_commitment_point;
-		self.their_cur_commitment_point = Some(msg.next_per_commitment_point);
+		self.counterparty_prev_commitment_point = self.counterparty_cur_commitment_point;
+		self.counterparty_cur_commitment_point = Some(msg.next_per_commitment_point);
 		Ok(())
 	}
 
@@ -1713,7 +1713,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		if htlc_inbound_value_msat + msg.amount_msat + self.value_to_self_msat > (self.channel_value_satoshis - Channel::<ChanSigner>::get_remote_channel_reserve_satoshis(self.channel_value_satoshis)) * 1000 + removed_outbound_total_msat {
 			return Err(ChannelError::Close("Remote HTLC add would put them under their reserve value"));
 		}
-		if self.next_remote_htlc_id != msg.htlc_id {
+		if self.next_counterparty_htlc_id != msg.htlc_id {
 			return Err(ChannelError::Close("Remote skipped HTLC ID"));
 		}
 		if msg.cltv_expiry >= 500000000 {
@@ -1727,7 +1727,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 
 		// Now update local state:
-		self.next_remote_htlc_id += 1;
+		self.next_counterparty_htlc_id += 1;
 		self.pending_inbound_htlcs.push(InboundHTLCOutput {
 			htlc_id: msg.htlc_id,
 			amount_msat: msg.amount_msat,
@@ -1817,7 +1817,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		let funding_script = self.get_funding_redeemscript();
 
-		let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number).map_err(|e| (None, e))?;
+		let our_keys = self.build_local_transaction_keys(self.cur_our_commtment_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() {
@@ -1827,44 +1827,44 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			self.feerate_per_kw
 		};
 
-		let mut local_commitment_tx = {
-			let mut commitment_tx = self.build_commitment_transaction(self.cur_local_commitment_transaction_number, &local_keys, true, false, feerate_per_kw, logger);
+		let mut our_commitment_tx = {
+			let mut commitment_tx = self.build_commitment_transaction(self.cur_our_commtment_transaction_number, &our_keys, true, false, feerate_per_kw, logger);
 			let htlcs_cloned: Vec<_> = commitment_tx.2.drain(..).map(|htlc| (htlc.0, htlc.1.map(|h| h.clone()))).collect();
 			(commitment_tx.0, commitment_tx.1, htlcs_cloned)
 		};
-		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!(logger, "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()) {
+		let our_commitment_txid = our_commitment_tx.0.txid();
+		let our_sighash = hash_to_message!(&bip143::SighashComponents::new(&our_commitment_tx.0).sighash_all(&our_commitment_tx.0.input[0], &funding_script, self.channel_value_satoshis)[..]);
+		log_trace!(logger, "Checking commitment tx signature {} by key {} against tx {} (sighash {}) with redeemscript {}", log_bytes!(msg.signature.serialize_compact()[..]), log_bytes!(self.counterparty_funding_pubkey().serialize()), encode::serialize_hex(&our_commitment_tx.0), log_bytes!(our_sighash[..]), encode::serialize_hex(&funding_script));
+		if let Err(_) = self.secp_ctx.verify(&our_sighash, &msg.signature, &self.counterparty_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 {
-			let num_htlcs = local_commitment_tx.1;
+			let num_htlcs = our_commitment_tx.1;
 			let total_fee: u64 = feerate_per_kw as u64 * (COMMITMENT_TX_BASE_WEIGHT + (num_htlcs as u64) * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000;
 
-			let remote_reserve_we_require = Channel::<ChanSigner>::get_remote_channel_reserve_satoshis(self.channel_value_satoshis);
-			if self.channel_value_satoshis - self.value_to_self_msat / 1000 < total_fee + remote_reserve_we_require {
+			let counterparty_reserve_we_require = Channel::<ChanSigner>::get_remote_channel_reserve_satoshis(self.channel_value_satoshis);
+			if self.channel_value_satoshis - self.value_to_self_msat / 1000 < total_fee + counterparty_reserve_we_require {
 				return Err((None, ChannelError::Close("Funding remote cannot afford proposed new fee")));
 			}
 		}
 
-		if msg.htlc_signatures.len() != local_commitment_tx.1 {
+		if msg.htlc_signatures.len() != our_commitment_tx.1 {
 			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() {
+		let mut htlcs_without_source = Vec::with_capacity(our_commitment_tx.2.len());
+		let mut htlcs_and_sigs = Vec::with_capacity(our_commitment_tx.2.len());
+		for (idx, (htlc, source)) in our_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);
+				let htlc_tx = self.build_htlc_transaction(&our_commitment_txid, &htlc, true, &our_keys, feerate_per_kw);
+				let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&htlc, &our_keys);
 				let htlc_sighash = hash_to_message!(&bip143::SighashComponents::new(&htlc_tx).sighash_all(&htlc_tx.input[0], &htlc_redeemscript, htlc.amount_msat / 1000)[..]);
-				log_trace!(logger, "Checking HTLC tx signature {} by key {} against tx {} (sighash {}) with redeemscript {}", log_bytes!(msg.htlc_signatures[idx].serialize_compact()[..]), log_bytes!(local_keys.remote_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.remote_htlc_key) {
+				log_trace!(logger, "Checking HTLC tx signature {} by key {} against tx {} (sighash {}) with redeemscript {}", log_bytes!(msg.htlc_signatures[idx].serialize_compact()[..]), log_bytes!(our_keys.remote_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], &our_keys.remote_htlc_key) {
 					return Err((None, ChannelError::Close("Invalid HTLC tx signature from peer")));
 				}
 				htlcs_without_source.push((htlc.clone(), Some(msg.htlc_signatures[idx])));
@@ -1875,8 +1875,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 		}
 
-		let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(self.cur_local_commitment_transaction_number - 1));
-		let per_commitment_secret = chan_utils::build_commitment_secret(self.local_keys.commitment_seed(), self.cur_local_commitment_transaction_number + 1);
+		let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(self.cur_our_commtment_transaction_number - 1));
+		let per_commitment_secret = chan_utils::build_commitment_secret(self.our_keys.commitment_seed(), self.cur_our_commtment_transaction_number + 1);
 
 		// Update state now that we've passed all the can-fail calls...
 		let mut need_our_commitment = false;
@@ -1893,13 +1893,13 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 		}
 
-		let their_funding_pubkey = self.their_pubkeys.as_ref().unwrap().funding_pubkey;
+		let funding_pubkey = self.counterparty_pubkeys.as_ref().unwrap().funding_pubkey;
 
 		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),
+				commitment_tx: LocalCommitmentTransaction::new_missing_local_sig(our_commitment_tx.0, msg.signature.clone(), &PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key()), &funding_pubkey, our_keys, self.feerate_per_kw, htlcs_without_source),
 				htlc_outputs: htlcs_and_sigs
 			}]
 		};
@@ -1923,7 +1923,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 		}
 
-		self.cur_local_commitment_transaction_number -= 1;
+		self.cur_our_commtment_transaction_number -= 1;
 		// Note that if we need_our_commitment & !AwaitingRemoteRevoke we'll call
 		// send_commitment_no_status_check() next which will reset this to RAAFirst.
 		self.resend_order = RAACommitmentOrder::CommitmentFirst;
@@ -2112,8 +2112,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Peer sent revoke_and_ack after we'd started exchanging closing_signeds"));
 		}
 
-		if let Some(their_prev_commitment_point) = self.their_prev_commitment_point {
-			if PublicKey::from_secret_key(&self.secp_ctx, &secp_check!(SecretKey::from_slice(&msg.per_commitment_secret), "Peer provided an invalid per_commitment_secret")) != their_prev_commitment_point {
+		if let Some(counterparty_prev_commitment_point) = self.counterparty_prev_commitment_point {
+			if PublicKey::from_secret_key(&self.secp_ctx, &secp_check!(SecretKey::from_slice(&msg.per_commitment_secret), "Peer provided an invalid per_commitment_secret")) != counterparty_prev_commitment_point {
 				return Err(ChannelError::Close("Got a revoke commitment secret which didn't correspond to their current pubkey"));
 			}
 		}
@@ -2129,13 +2129,13 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			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)
+		self.commitment_secrets.provide_secret(self.cur_counterparty_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,
+				idx: self.cur_counterparty_commitment_transaction_number + 1,
 				secret: msg.per_commitment_secret,
 			}],
 		};
@@ -2146,9 +2146,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		// OK, we step the channel here and *then* if the new generation fails we can fail the
 		// channel based on that, but stepping stuff here should be safe either way.
 		self.channel_state &= !(ChannelState::AwaitingRemoteRevoke as u32);
-		self.their_prev_commitment_point = self.their_cur_commitment_point;
-		self.their_cur_commitment_point = Some(msg.next_per_commitment_point);
-		self.cur_remote_commitment_transaction_number -= 1;
+		self.counterparty_prev_commitment_point = self.counterparty_cur_commitment_point;
+		self.counterparty_cur_commitment_point = Some(msg.next_per_commitment_point);
+		self.cur_counterparty_commitment_transaction_number -= 1;
 
 		log_trace!(logger, "Updating HTLCs on receipt of RAA...");
 		let mut to_forward_infos = Vec::new();
@@ -2401,7 +2401,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				},
 			}
 		});
-		self.next_remote_htlc_id -= inbound_drop_count;
+		self.next_counterparty_htlc_id -= inbound_drop_count;
 
 		for htlc in self.pending_outbound_htlcs.iter_mut() {
 			if let OutboundHTLCState::RemoteRemoved(_) = htlc.state {
@@ -2461,7 +2461,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let funding_locked = if self.monitor_pending_funding_locked {
 			assert!(!self.channel_outbound, "Funding transaction broadcast without FundingBroadcastSafe!");
 			self.monitor_pending_funding_locked = false;
-			let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_local_commitment_transaction_number);
+			let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_our_commtment_transaction_number);
 			let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &next_per_commitment_secret);
 			Some(msgs::FundingLocked {
 				channel_id: self.channel_id(),
@@ -2514,8 +2514,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	}
 
 	fn get_last_revoke_and_ack(&self) -> msgs::RevokeAndACK {
-		let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(self.cur_local_commitment_transaction_number));
-		let per_commitment_secret = chan_utils::build_commitment_secret(self.local_keys.commitment_seed(), self.cur_local_commitment_transaction_number + 2);
+		let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(self.cur_our_commtment_transaction_number));
+		let per_commitment_secret = chan_utils::build_commitment_secret(self.our_keys.commitment_seed(), self.cur_our_commtment_transaction_number + 2);
 		msgs::RevokeAndACK {
 			channel_id: self.channel_id,
 			per_commitment_secret,
@@ -2598,10 +2598,10 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		if msg.next_remote_commitment_number > 0 {
 			match msg.data_loss_protect {
 				OptionalField::Present(ref data_loss) => {
-					if chan_utils::build_commitment_secret(self.local_keys.commitment_seed(), INITIAL_COMMITMENT_NUMBER - msg.next_remote_commitment_number + 1) != data_loss.your_last_per_commitment_secret {
+					if chan_utils::build_commitment_secret(self.our_keys.commitment_seed(), INITIAL_COMMITMENT_NUMBER - msg.next_remote_commitment_number + 1) != data_loss.your_last_per_commitment_secret {
 						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 {
+					if msg.next_remote_commitment_number > INITIAL_COMMITMENT_NUMBER - self.cur_our_commtment_transaction_number {
 						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"
 						));
@@ -2634,7 +2634,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 
 			// We have OurFundingLocked set!
-			let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_local_commitment_transaction_number);
+			let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_our_commtment_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(),
@@ -2642,11 +2642,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}), None, None, None, RAACommitmentOrder::CommitmentFirst, shutdown_msg));
 		}
 
-		let required_revoke = if msg.next_remote_commitment_number + 1 == INITIAL_COMMITMENT_NUMBER - self.cur_local_commitment_transaction_number {
+		let required_revoke = if msg.next_remote_commitment_number + 1 == INITIAL_COMMITMENT_NUMBER - self.cur_our_commtment_transaction_number {
 			// Remote isn't waiting on any RevokeAndACK from us!
 			// Note that if we need to repeat our FundingLocked we'll do that in the next if block.
 			None
-		} else if msg.next_remote_commitment_number + 1 == (INITIAL_COMMITMENT_NUMBER - 1) - self.cur_local_commitment_transaction_number {
+		} else if msg.next_remote_commitment_number + 1 == (INITIAL_COMMITMENT_NUMBER - 1) - self.cur_our_commtment_transaction_number {
 			if self.channel_state & (ChannelState::MonitorUpdateFailed as u32) != 0 {
 				self.monitor_pending_revoke_and_ack = true;
 				None
@@ -2657,15 +2657,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Close("Peer attempted to reestablish channel with a very old local commitment transaction"));
 		};
 
-		// We increment cur_remote_commitment_transaction_number only upon receipt of
+		// We increment cur_counterparty_commitment_transaction_number only upon receipt of
 		// revoke_and_ack, not on sending commitment_signed, so we add one if have
 		// AwaitingRemoteRevoke set, which indicates we sent a commitment_signed but haven't gotten
 		// the corresponding revoke_and_ack back yet.
-		let our_next_remote_commitment_number = INITIAL_COMMITMENT_NUMBER - self.cur_remote_commitment_transaction_number + if (self.channel_state & ChannelState::AwaitingRemoteRevoke as u32) != 0 { 1 } else { 0 };
+		let our_next_remote_commitment_number = INITIAL_COMMITMENT_NUMBER - self.cur_counterparty_commitment_transaction_number + if (self.channel_state & ChannelState::AwaitingRemoteRevoke as u32) != 0 { 1 } else { 0 };
 
-		let resend_funding_locked = if msg.next_local_commitment_number == 1 && INITIAL_COMMITMENT_NUMBER - self.cur_local_commitment_transaction_number == 1 {
+		let resend_funding_locked = if msg.next_local_commitment_number == 1 && INITIAL_COMMITMENT_NUMBER - self.cur_our_commtment_transaction_number == 1 {
 			// We should never have to worry about MonitorUpdateFailed resending FundingLocked
-			let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_local_commitment_transaction_number);
+			let next_per_commitment_secret = self.build_local_commitment_secret(self.cur_our_commtment_transaction_number);
 			let next_per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &next_per_commitment_secret);
 			Some(msgs::FundingLocked {
 				channel_id: self.channel_id(),
@@ -2725,11 +2725,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		if self.feerate_per_kw > proposed_feerate {
 			proposed_feerate = self.feerate_per_kw;
 		}
-		let tx_weight = Self::get_closing_transaction_weight(&self.get_closing_scriptpubkey(), self.their_shutdown_scriptpubkey.as_ref().unwrap());
+		let tx_weight = Self::get_closing_transaction_weight(&self.get_closing_scriptpubkey(), self.counterparty_shutdown_scriptpubkey.as_ref().unwrap());
 		let proposed_total_fee_satoshis = proposed_feerate * tx_weight / 1000;
 
 		let (closing_tx, total_fee_satoshis) = self.build_closing_transaction(proposed_total_fee_satoshis, false);
-		let our_sig = self.local_keys
+		let our_sig = self.our_keys
 			.sign_closing_transaction(&closing_tx, &self.secp_ctx)
 			.ok();
 		if our_sig.is_none() { return None; }
@@ -2764,20 +2764,20 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		// BOLT 2 says we must only send a scriptpubkey of certain standard forms, which are up to
 		// 34 bytes in length, so don't let the remote peer feed us some super fee-heavy script.
 		if self.channel_outbound && msg.scriptpubkey.len() > 34 {
-			return Err(ChannelError::Close("Got shutdown_scriptpubkey of absurd length from remote peer"));
+			return Err(ChannelError::Close("Got counterparty_shutdown_scriptpubkey of absurd length from remote peer"));
 		}
 
-		//Check shutdown_scriptpubkey form as BOLT says we must
+		//Check counterparty_shutdown_scriptpubkey form as BOLT says we must
 		if !msg.scriptpubkey.is_p2pkh() && !msg.scriptpubkey.is_p2sh() && !msg.scriptpubkey.is_v0_p2wpkh() && !msg.scriptpubkey.is_v0_p2wsh() {
 			return Err(ChannelError::Close("Got a nonstandard scriptpubkey from remote peer"));
 		}
 
-		if self.their_shutdown_scriptpubkey.is_some() {
-			if Some(&msg.scriptpubkey) != self.their_shutdown_scriptpubkey.as_ref() {
+		if self.counterparty_shutdown_scriptpubkey.is_some() {
+			if Some(&msg.scriptpubkey) != self.counterparty_shutdown_scriptpubkey.as_ref() {
 				return Err(ChannelError::Close("Got shutdown request with a scriptpubkey which did not match their previous scriptpubkey"));
 			}
 		} else {
-			self.their_shutdown_scriptpubkey = Some(msg.scriptpubkey.clone());
+			self.counterparty_shutdown_scriptpubkey = Some(msg.scriptpubkey.clone());
 		}
 
 		// From here on out, we may not fail!
@@ -2818,20 +2818,20 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		Ok((our_shutdown, self.maybe_propose_first_closing_signed(fee_estimator), dropped_outbound_htlcs))
 	}
 
-	fn build_signed_closing_transaction(&self, tx: &mut Transaction, their_sig: &Signature, our_sig: &Signature) {
+	fn build_signed_closing_transaction(&self, tx: &mut Transaction, sig: &Signature, our_sig: &Signature) {
 		if tx.input.len() != 1 { panic!("Tried to sign closing transaction that had input count != 1!"); }
 		if tx.input[0].witness.len() != 0 { panic!("Tried to re-sign closing transaction"); }
 		if tx.output.len() > 2 { panic!("Tried to sign bogus closing transaction"); }
 
 		tx.input[0].witness.push(Vec::new()); // First is the multisig dummy
 
-		let our_funding_key = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()).serialize();
-		let their_funding_key = self.their_funding_pubkey().serialize();
-		if our_funding_key[..] < their_funding_key[..] {
+		let our_funding_key = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key()).serialize();
+		let funding_key = self.counterparty_funding_pubkey().serialize();
+		if our_funding_key[..] < funding_key[..] {
 			tx.input[0].witness.push(our_sig.serialize_der().to_vec());
-			tx.input[0].witness.push(their_sig.serialize_der().to_vec());
+			tx.input[0].witness.push(sig.serialize_der().to_vec());
 		} else {
-			tx.input[0].witness.push(their_sig.serialize_der().to_vec());
+			tx.input[0].witness.push(sig.serialize_der().to_vec());
 			tx.input[0].witness.push(our_sig.serialize_der().to_vec());
 		}
 		tx.input[0].witness[1].push(SigHashType::All as u8);
@@ -2863,16 +2863,16 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 		let mut sighash = hash_to_message!(&bip143::SighashComponents::new(&closing_tx).sighash_all(&closing_tx.input[0], &funding_redeemscript, self.channel_value_satoshis)[..]);
 
-		let their_funding_pubkey = &self.their_pubkeys.as_ref().unwrap().funding_pubkey;
+		let funding_pubkey = &self.counterparty_pubkeys.as_ref().unwrap().funding_pubkey;
 
-		match self.secp_ctx.verify(&sighash, &msg.signature, their_funding_pubkey) {
+		match self.secp_ctx.verify(&sighash, &msg.signature, funding_pubkey) {
 			Ok(_) => {},
 			Err(_e) => {
 				// The remote end may have decided to revoke their output due to inconsistent dust
 				// limits, so check for that case by re-checking the signature here.
 				closing_tx = self.build_closing_transaction(msg.fee_satoshis, true).0;
 				sighash = hash_to_message!(&bip143::SighashComponents::new(&closing_tx).sighash_all(&closing_tx.input[0], &funding_redeemscript, self.channel_value_satoshis)[..]);
-				secp_check!(self.secp_ctx.verify(&sighash, &msg.signature, self.their_funding_pubkey()), "Invalid closing tx signature from peer");
+				secp_check!(self.secp_ctx.verify(&sighash, &msg.signature, self.counterparty_funding_pubkey()), "Invalid closing tx signature from peer");
 			},
 		};
 
@@ -2887,9 +2887,9 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		macro_rules! propose_new_feerate {
 			($new_feerate: expr) => {
-				let closing_tx_max_weight = Self::get_closing_transaction_weight(&self.get_closing_scriptpubkey(), self.their_shutdown_scriptpubkey.as_ref().unwrap());
+				let closing_tx_max_weight = Self::get_closing_transaction_weight(&self.get_closing_scriptpubkey(), self.counterparty_shutdown_scriptpubkey.as_ref().unwrap());
 				let (closing_tx, used_total_fee) = self.build_closing_transaction($new_feerate * closing_tx_max_weight / 1000, false);
-				let our_sig = self.local_keys
+				let our_sig = self.our_keys
 					.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()));
@@ -2924,7 +2924,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 		}
 
-		let our_sig = self.local_keys
+		let our_sig = self.our_keys
 			.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);
@@ -2973,8 +2973,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	}
 
 	/// Allowed in any state (including after shutdown)
-	pub fn get_their_node_id(&self) -> PublicKey {
-		self.their_node_id
+	pub fn get_counterparty_node_id(&self) -> PublicKey {
+		self.counterparty_node_id
 	}
 
 	/// Allowed in any state (including after shutdown)
@@ -2983,7 +2983,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	}
 
 	/// Allowed in any state (including after shutdown)
-	pub fn get_their_htlc_minimum_msat(&self) -> u64 {
+	pub fn get_counterparty_htlc_minimum_msat(&self) -> u64 {
 		self.our_htlc_minimum_msat
 	}
 
@@ -3000,21 +3000,21 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		self.feerate_per_kw
 	}
 
-	pub fn get_cur_local_commitment_transaction_number(&self) -> u64 {
-		self.cur_local_commitment_transaction_number + 1
+	pub fn get_cur_our_commitment_transaction_number(&self) -> u64 {
+		self.cur_our_commtment_transaction_number + 1
 	}
 
-	pub fn get_cur_remote_commitment_transaction_number(&self) -> u64 {
-		self.cur_remote_commitment_transaction_number + 1 - if self.channel_state & (ChannelState::AwaitingRemoteRevoke as u32) != 0 { 1 } else { 0 }
+	pub fn get_cur_counterparty_commitment_transaction_number(&self) -> u64 {
+		self.cur_counterparty_commitment_transaction_number + 1 - if self.channel_state & (ChannelState::AwaitingRemoteRevoke as u32) != 0 { 1 } else { 0 }
 	}
 
 	pub fn get_revoked_remote_commitment_transaction_number(&self) -> u64 {
-		self.cur_remote_commitment_transaction_number + 2
+		self.cur_counterparty_commitment_transaction_number + 2
 	}
 
 	#[cfg(test)]
-	pub fn get_local_keys(&self) -> &ChanSigner {
-		&self.local_keys
+	pub fn get_our_keys(&self) -> &ChanSigner {
+		&self.our_keys
 	}
 
 	#[cfg(test)]
@@ -3022,7 +3022,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		ChannelValueStat {
 			value_to_self_msat: self.value_to_self_msat,
 			channel_value_msat: self.channel_value_satoshis * 1000,
-			channel_reserve_msat: self.local_channel_reserve_satoshis * 1000,
+			channel_reserve_msat: self.our_channel_reserve_satoshis * 1000,
 			pending_outbound_htlcs_amount_msat: self.pending_outbound_htlcs.iter().map(|ref h| h.amount_msat).sum::<u64>(),
 			pending_inbound_htlcs_amount_msat: self.pending_inbound_htlcs.iter().map(|ref h| h.amount_msat).sum::<u64>(),
 			holding_cell_outbound_amount_msat: {
@@ -3037,7 +3037,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 				}
 				res
 			},
-			their_max_htlc_value_in_flight_msat: self.their_max_htlc_value_in_flight_msat,
+			counterparty_max_htlc_value_in_flight_msat: self.counterparty_max_htlc_value_in_flight_msat,
 		}
 	}
 
@@ -3247,7 +3247,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 					//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_secret = self.build_local_commitment_secret(self.cur_our_commtment_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,
@@ -3297,11 +3297,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			panic!("Cannot generate an open_channel after we've moved forward");
 		}
 
-		if self.cur_local_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+		if self.cur_our_commtment_transaction_number != INITIAL_COMMITMENT_NUMBER {
 			panic!("Tried to send an open_channel for a channel that has already advanced");
 		}
 
-		let local_commitment_secret = self.build_local_commitment_secret(self.cur_local_commitment_transaction_number);
+		let our_commitment_secret = self.build_local_commitment_secret(self.cur_our_commtment_transaction_number);
 
 		msgs::OpenChannel {
 			chain_hash: chain_hash,
@@ -3315,12 +3315,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			feerate_per_kw: fee_estimator.get_est_sat_per_1000_weight(ConfirmationTarget::Background) as u32,
 			to_self_delay: self.our_to_self_delay,
 			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_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),
+			funding_pubkey: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key()),
+			revocation_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.revocation_base_key()),
+			payment_point: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.payment_key()),
+			delayed_payment_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.delayed_payment_base_key()),
+			htlc_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.htlc_base_key()),
+			first_per_commitment_point: PublicKey::from_secret_key(&self.secp_ctx, &our_commitment_secret),
 			channel_flags: if self.config.announced_channel {1} else {0},
 			shutdown_scriptpubkey: OptionalField::Present(if self.config.commit_upfront_shutdown_pubkey { self.get_closing_scriptpubkey() } else { Builder::new().into_script() })
 		}
@@ -3333,11 +3333,11 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		if self.channel_state != (ChannelState::OurInitSent as u32) | (ChannelState::TheirInitSent as u32) {
 			panic!("Tried to send accept_channel after channel had moved forward");
 		}
-		if self.cur_local_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+		if self.cur_our_commtment_transaction_number != INITIAL_COMMITMENT_NUMBER {
 			panic!("Tried to send an accept_channel for a channel that has already advanced");
 		}
 
-		let local_commitment_secret = self.build_local_commitment_secret(self.cur_local_commitment_transaction_number);
+		let our_commitment_secret = self.build_local_commitment_secret(self.cur_our_commtment_transaction_number);
 
 		msgs::AcceptChannel {
 			temporary_channel_id: self.channel_id,
@@ -3348,21 +3348,21 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			minimum_depth: self.minimum_depth,
 			to_self_delay: self.our_to_self_delay,
 			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_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),
+			funding_pubkey: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key()),
+			revocation_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.revocation_base_key()),
+			payment_point: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.payment_key()),
+			delayed_payment_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.delayed_payment_base_key()),
+			htlc_basepoint: PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.htlc_base_key()),
+			first_per_commitment_point: PublicKey::from_secret_key(&self.secp_ctx, &our_commitment_secret),
 			shutdown_scriptpubkey: OptionalField::Present(if self.config.commit_upfront_shutdown_pubkey { self.get_closing_scriptpubkey() } else { Builder::new().into_script() })
 		}
 	}
 
 	/// If an Err is returned, it is a ChannelError::Close (for get_outbound_funding_created)
 	fn get_outbound_funding_created_signature<L: Deref>(&mut self, logger: &L) -> Result<Signature, ChannelError> where L::Target: Logger {
-		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, logger).0;
-		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)
+		let counterparty_keys = self.build_remote_transaction_keys()?;
+		let counterparty_initial_commitment_tx = self.build_commitment_transaction(self.cur_counterparty_commitment_transaction_number, &counterparty_keys, false, false, self.feerate_per_kw, logger).0;
+		Ok(self.our_keys.sign_remote_commitment(self.feerate_per_kw, &counterparty_initial_commitment_tx, &counterparty_keys, &Vec::new(), self.our_to_self_delay, &self.secp_ctx)
 				.map_err(|_| ChannelError::Close("Failed to get signatures for new commitment_signed"))?.0)
 	}
 
@@ -3381,8 +3381,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			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.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 {
+				self.cur_counterparty_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
+				self.cur_our_commtment_transaction_number != INITIAL_COMMITMENT_NUMBER {
 			panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
 		}
 
@@ -3419,7 +3419,7 @@ 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: BlockHash) -> Result<(msgs::UnsignedChannelAnnouncement, Signature), ChannelError> {
+	pub fn get_channel_announcement(&self, our_counterparty_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"));
 		}
@@ -3430,21 +3430,21 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Ignore("Cannot get a ChannelAnnouncement once the channel is closing"));
 		}
 
-		let were_node_one = our_node_id.serialize()[..] < self.their_node_id.serialize()[..];
-		let our_bitcoin_key = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key());
+		let were_node_one = our_counterparty_node_id.serialize()[..] < self.counterparty_node_id.serialize()[..];
+		let our_bitcoin_key = PublicKey::from_secret_key(&self.secp_ctx, self.our_keys.funding_key());
 
 		let msg = msgs::UnsignedChannelAnnouncement {
 			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() },
-			node_id_2: if were_node_one { self.get_their_node_id() } else { our_node_id },
-			bitcoin_key_1: if were_node_one { our_bitcoin_key } else { self.their_funding_pubkey().clone() },
-			bitcoin_key_2: if were_node_one { self.their_funding_pubkey().clone() } else { our_bitcoin_key },
+			node_id_1: if were_node_one { our_counterparty_node_id } else { self.get_counterparty_node_id() },
+			node_id_2: if were_node_one { self.get_counterparty_node_id() } else { our_counterparty_node_id },
+			bitcoin_key_1: if were_node_one { our_bitcoin_key } else { self.counterparty_funding_pubkey().clone() },
+			bitcoin_key_2: if were_node_one { self.counterparty_funding_pubkey().clone() } else { our_bitcoin_key },
 			excess_data: Vec::new(),
 		};
 
-		let sig = self.local_keys.sign_channel_announcement(&msg, &self.secp_ctx)
+		let sig = self.our_keys.sign_channel_announcement(&msg, &self.secp_ctx)
 			.map_err(|_| ChannelError::Ignore("Signer rejected channel_announcement"))?;
 
 		Ok((msg, sig))
@@ -3454,7 +3454,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 	/// self.remove_uncommitted_htlcs_and_mark_paused()'d
 	pub fn get_channel_reestablish<L: Deref>(&self, logger: &L) -> msgs::ChannelReestablish where L::Target: Logger {
 		assert_eq!(self.channel_state & ChannelState::PeerDisconnected as u32, ChannelState::PeerDisconnected as u32);
-		assert_ne!(self.cur_remote_commitment_transaction_number, INITIAL_COMMITMENT_NUMBER);
+		assert_ne!(self.cur_counterparty_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.
@@ -3463,8 +3463,8 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		// 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.commitment_secrets.get_secret(self.cur_remote_commitment_transaction_number + 2).unwrap();
+		let data_loss_protect = if self.cur_counterparty_commitment_transaction_number + 1 < INITIAL_COMMITMENT_NUMBER {
+			let remote_last_secret = self.commitment_secrets.get_secret(self.cur_counterparty_commitment_transaction_number + 2).unwrap();
 			log_trace!(logger, "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,
@@ -3488,15 +3488,15 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 			// next_local_commitment_number is the next commitment_signed number we expect to
 			// receive (indicating if they need to resend one that we missed).
-			next_local_commitment_number: INITIAL_COMMITMENT_NUMBER - self.cur_local_commitment_transaction_number,
+			next_local_commitment_number: INITIAL_COMMITMENT_NUMBER - self.cur_our_commtment_transaction_number,
 			// We have to set next_remote_commitment_number to the next revoke_and_ack we expect to
 			// receive, however we track it by the next commitment number for a remote transaction
 			// (which is one further, as they always revoke previous commitment transaction, not
 			// the one we send) so we have to decrement by 1. Note that if
-			// cur_remote_commitment_transaction_number is INITIAL_COMMITMENT_NUMBER we will have
+			// cur_counterparty_commitment_transaction_number is INITIAL_COMMITMENT_NUMBER we will have
 			// dropped this channel on disconnect as it hasn't yet reached FundingSent so we can't
 			// overflow here.
-			next_remote_commitment_number: INITIAL_COMMITMENT_NUMBER - self.cur_remote_commitment_transaction_number - 1,
+			next_remote_commitment_number: INITIAL_COMMITMENT_NUMBER - self.cur_counterparty_commitment_transaction_number - 1,
 			data_loss_protect,
 		}
 	}
@@ -3524,7 +3524,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			return Err(ChannelError::Ignore("Cannot send 0-msat HTLC"));
 		}
 
-		if amount_msat < self.their_htlc_minimum_msat {
+		if amount_msat < self.counterparty_htlc_minimum_msat {
 			return Err(ChannelError::Ignore("Cannot send less than their minimum HTLC value"));
 		}
 
@@ -3539,17 +3539,17 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 
 		let (outbound_htlc_count, htlc_outbound_value_msat) = self.get_outbound_pending_htlc_stats();
-		if outbound_htlc_count + 1 > self.their_max_accepted_htlcs as u32 {
+		if outbound_htlc_count + 1 > self.counterparty_max_accepted_htlcs as u32 {
 			return Err(ChannelError::Ignore("Cannot push more than their max accepted HTLCs"));
 		}
-		// Check their_max_htlc_value_in_flight_msat
-		if htlc_outbound_value_msat + amount_msat > self.their_max_htlc_value_in_flight_msat {
+		// Check counterparty_max_htlc_value_in_flight_msat
+		if htlc_outbound_value_msat + amount_msat > self.counterparty_max_htlc_value_in_flight_msat {
 			return Err(ChannelError::Ignore("Cannot send value that would put us over the max HTLC value in flight our peer will accept"));
 		}
 
-		// Check self.local_channel_reserve_satoshis (the amount we must keep as
+		// Check self.our_channel_reserve_satoshis (the amount we must keep as
 		// reserve for the remote to have something to claim if we misbehave)
-		if self.value_to_self_msat < self.local_channel_reserve_satoshis * 1000 + amount_msat + htlc_outbound_value_msat {
+		if self.value_to_self_msat < self.our_channel_reserve_satoshis * 1000 + amount_msat + htlc_outbound_value_msat {
 			return Err(ChannelError::Ignore("Cannot send value that would put us under local channel reserve value"));
 		}
 
@@ -3566,7 +3566,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 
 		self.pending_outbound_htlcs.push(OutboundHTLCOutput {
-			htlc_id: self.next_local_htlc_id,
+			htlc_id: self.next_our_htlc_id,
 			amount_msat: amount_msat,
 			payment_hash: payment_hash.clone(),
 			cltv_expiry: cltv_expiry,
@@ -3576,13 +3576,13 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 
 		let res = msgs::UpdateAddHTLC {
 			channel_id: self.channel_id,
-			htlc_id: self.next_local_htlc_id,
+			htlc_id: self.next_our_htlc_id,
 			amount_msat: amount_msat,
 			payment_hash: payment_hash,
 			cltv_expiry: cltv_expiry,
 			onion_routing_packet: onion_routing_packet,
 		};
-		self.next_local_htlc_id += 1;
+		self.next_our_htlc_id += 1;
 
 		Ok(Some(res))
 	}
@@ -3644,12 +3644,12 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		}
 		self.resend_order = RAACommitmentOrder::RevokeAndACKFirst;
 
-		let (res, remote_commitment_tx, htlcs) = match self.send_commitment_no_state_update(logger) {
-			Ok((res, (remote_commitment_tx, mut htlcs))) => {
+		let (res, counterparty_commitment_tx, htlcs) = match self.send_commitment_no_state_update(logger) {
+			Ok((res, (counterparty_commitment_tx, mut htlcs))) => {
 				// Update state now that we've passed all the can-fail calls...
 				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)
+				(res, counterparty_commitment_tx, htlcs_no_ref)
 			},
 			Err(e) => return Err(e),
 		};
@@ -3658,10 +3658,10 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 		let monitor_update = ChannelMonitorUpdate {
 			update_id: self.latest_monitor_update_id,
 			updates: vec![ChannelMonitorUpdateStep::LatestRemoteCommitmentTXInfo {
-				unsigned_commitment_tx: remote_commitment_tx.clone(),
+				unsigned_commitment_tx: counterparty_commitment_tx.clone(),
 				htlc_outputs: htlcs.clone(),
-				commitment_number: self.cur_remote_commitment_transaction_number,
-				their_revocation_point: self.their_cur_commitment_point.unwrap()
+				commitment_number: self.cur_counterparty_commitment_transaction_number,
+				their_revocation_point: self.counterparty_cur_commitment_point.unwrap()
 			}]
 		};
 		self.channel_monitor.as_mut().unwrap().update_monitor_ooo(monitor_update.clone(), logger).unwrap();
@@ -3679,31 +3679,31 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			}
 		}
 
-		let remote_keys = self.build_remote_transaction_keys()?;
-		let remote_commitment_tx = self.build_commitment_transaction(self.cur_remote_commitment_transaction_number, &remote_keys, false, true, feerate_per_kw, logger);
+		let counterparty_keys = self.build_remote_transaction_keys()?;
+		let counterparty_commitment_tx = self.build_commitment_transaction(self.cur_counterparty_commitment_transaction_number, &counterparty_keys, false, true, feerate_per_kw, logger);
 		let (signature, htlc_signatures);
 
 		{
-			let mut htlcs = Vec::with_capacity(remote_commitment_tx.2.len());
-			for &(ref htlc, _) in remote_commitment_tx.2.iter() {
+			let mut htlcs = Vec::with_capacity(counterparty_commitment_tx.2.len());
+			for &(ref htlc, _) in counterparty_commitment_tx.2.iter() {
 				htlcs.push(htlc);
 			}
 
-			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)
+			let res = self.our_keys.sign_remote_commitment(feerate_per_kw, &counterparty_commitment_tx.0, &counterparty_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;
 
 			log_trace!(logger, "Signed remote commitment tx {} with redeemscript {} -> {}",
-				encode::serialize_hex(&remote_commitment_tx.0),
+				encode::serialize_hex(&counterparty_commitment_tx.0),
 				encode::serialize_hex(&self.get_funding_redeemscript()),
 				log_bytes!(signature.serialize_compact()[..]));
 
 			for (ref htlc_sig, ref htlc) in htlc_signatures.iter().zip(htlcs) {
 				log_trace!(logger, "Signed remote HTLC tx {} with redeemscript {} with pubkey {} -> {}",
-					encode::serialize_hex(&chan_utils::build_htlc_transaction(&remote_commitment_tx.0.txid(), feerate_per_kw, self.our_to_self_delay, htlc, &remote_keys.local_delayed_payment_key, &remote_keys.revocation_key)),
-					encode::serialize_hex(&chan_utils::get_htlc_redeemscript(&htlc, &remote_keys)),
-					log_bytes!(remote_keys.local_htlc_key.serialize()),
+					encode::serialize_hex(&chan_utils::build_htlc_transaction(&counterparty_commitment_tx.0.txid(), feerate_per_kw, self.our_to_self_delay, htlc, &counterparty_keys.local_delayed_payment_key, &counterparty_keys.revocation_key)),
+					encode::serialize_hex(&chan_utils::get_htlc_redeemscript(&htlc, &counterparty_keys)),
+					log_bytes!(counterparty_keys.local_htlc_key.serialize()),
 					log_bytes!(htlc_sig.serialize_compact()[..]));
 			}
 		}
@@ -3712,7 +3712,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
 			channel_id: self.channel_id,
 			signature,
 			htlc_signatures,
-		}, (remote_commitment_tx.0, remote_commitment_tx.2)))
+		}, (counterparty_commitment_tx.0, counterparty_commitment_tx.2)))
 	}
 
 	/// Adds a pending outbound HTLC to this channel, and creates a signed commitment transaction
@@ -3869,12 +3869,12 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 
 		self.latest_monitor_update_id.write(writer)?;
 
-		self.local_keys.write(writer)?;
+		self.our_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)?;
+		self.cur_our_commtment_transaction_number.write(writer)?;
+		self.cur_counterparty_commitment_transaction_number.write(writer)?;
 		self.value_to_self_msat.write(writer)?;
 
 		let mut dropped_inbound_htlcs = 0;
@@ -3991,8 +3991,8 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 		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.next_our_htlc_id.write(writer)?;
+		(self.next_counterparty_htlc_id - dropped_inbound_htlcs).write(writer)?;
 		self.update_time_counter.write(writer)?;
 		self.feerate_per_kw.write(writer)?;
 
@@ -4013,24 +4013,24 @@ impl<ChanSigner: ChannelKeys + Writeable> Writeable for Channel<ChanSigner> {
 		self.last_block_connected.write(writer)?;
 		self.funding_tx_confirmations.write(writer)?;
 
-		self.their_dust_limit_satoshis.write(writer)?;
+		self.counterparty_dust_limit_satoshis.write(writer)?;
 		self.our_dust_limit_satoshis.write(writer)?;
-		self.their_max_htlc_value_in_flight_msat.write(writer)?;
-		self.local_channel_reserve_satoshis.write(writer)?;
-		self.their_htlc_minimum_msat.write(writer)?;
+		self.counterparty_max_htlc_value_in_flight_msat.write(writer)?;
+		self.our_channel_reserve_satoshis.write(writer)?;
+		self.counterparty_htlc_minimum_msat.write(writer)?;
 		self.our_htlc_minimum_msat.write(writer)?;
-		self.their_to_self_delay.write(writer)?;
+		self.counterparty_to_self_delay.write(writer)?;
 		self.our_to_self_delay.write(writer)?;
-		self.their_max_accepted_htlcs.write(writer)?;
+		self.counterparty_max_accepted_htlcs.write(writer)?;
 		self.minimum_depth.write(writer)?;
 
-		self.their_pubkeys.write(writer)?;
-		self.their_cur_commitment_point.write(writer)?;
+		self.counterparty_pubkeys.write(writer)?;
+		self.counterparty_cur_commitment_point.write(writer)?;
 
-		self.their_prev_commitment_point.write(writer)?;
-		self.their_node_id.write(writer)?;
+		self.counterparty_prev_commitment_point.write(writer)?;
+		self.counterparty_node_id.write(writer)?;
 
-		self.their_shutdown_scriptpubkey.write(writer)?;
+		self.counterparty_shutdown_scriptpubkey.write(writer)?;
 
 		self.commitment_secrets.write(writer)?;
 
@@ -4057,12 +4057,12 @@ impl<ChanSigner: ChannelKeys + Readable> Readable for Channel<ChanSigner> {
 
 		let latest_monitor_update_id = Readable::read(reader)?;
 
-		let local_keys = Readable::read(reader)?;
+		let our_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)?;
+		let cur_our_commtment_transaction_number = Readable::read(reader)?;
+		let cur_counterparty_commitment_transaction_number = Readable::read(reader)?;
 		let value_to_self_msat = Readable::read(reader)?;
 
 		let pending_inbound_htlc_count: u64 = Readable::read(reader)?;
@@ -4151,8 +4151,8 @@ impl<ChanSigner: ChannelKeys + Readable> Readable for Channel<ChanSigner> {
 		let pending_update_fee = Readable::read(reader)?;
 		let holding_cell_update_fee = Readable::read(reader)?;
 
-		let next_local_htlc_id = Readable::read(reader)?;
-		let next_remote_htlc_id = Readable::read(reader)?;
+		let next_our_htlc_id = Readable::read(reader)?;
+		let next_counterparty_htlc_id = Readable::read(reader)?;
 		let update_time_counter = Readable::read(reader)?;
 		let feerate_per_kw = Readable::read(reader)?;
 
@@ -4169,24 +4169,24 @@ impl<ChanSigner: ChannelKeys + Readable> Readable for Channel<ChanSigner> {
 		let last_block_connected = Readable::read(reader)?;
 		let funding_tx_confirmations = Readable::read(reader)?;
 
-		let their_dust_limit_satoshis = Readable::read(reader)?;
+		let counterparty_dust_limit_satoshis = Readable::read(reader)?;
 		let our_dust_limit_satoshis = Readable::read(reader)?;
-		let their_max_htlc_value_in_flight_msat = Readable::read(reader)?;
-		let local_channel_reserve_satoshis = Readable::read(reader)?;
-		let their_htlc_minimum_msat = Readable::read(reader)?;
+		let counterparty_max_htlc_value_in_flight_msat = Readable::read(reader)?;
+		let our_channel_reserve_satoshis = Readable::read(reader)?;
+		let counterparty_htlc_minimum_msat = Readable::read(reader)?;
 		let our_htlc_minimum_msat = Readable::read(reader)?;
-		let their_to_self_delay = Readable::read(reader)?;
+		let counterparty_to_self_delay = Readable::read(reader)?;
 		let our_to_self_delay = Readable::read(reader)?;
-		let their_max_accepted_htlcs = Readable::read(reader)?;
+		let counterparty_max_accepted_htlcs = Readable::read(reader)?;
 		let minimum_depth = Readable::read(reader)?;
 
-		let their_pubkeys = Readable::read(reader)?;
-		let their_cur_commitment_point = Readable::read(reader)?;
+		let counterparty_pubkeys = Readable::read(reader)?;
+		let counterparty_cur_commitment_point = Readable::read(reader)?;
 
-		let their_prev_commitment_point = Readable::read(reader)?;
-		let their_node_id = Readable::read(reader)?;
+		let counterparty_prev_commitment_point = Readable::read(reader)?;
+		let counterparty_node_id = Readable::read(reader)?;
 
-		let their_shutdown_scriptpubkey = Readable::read(reader)?;
+		let counterparty_shutdown_scriptpubkey = Readable::read(reader)?;
 		let commitment_secrets = Readable::read(reader)?;
 
 		let (monitor_last_block, channel_monitor) = Readable::read(reader)?;
@@ -4208,12 +4208,12 @@ impl<ChanSigner: ChannelKeys + Readable> Readable for Channel<ChanSigner> {
 
 			latest_monitor_update_id,
 
-			local_keys,
+			our_keys,
 			shutdown_pubkey,
 			destination_script,
 
-			cur_local_commitment_transaction_number,
-			cur_remote_commitment_transaction_number,
+			cur_our_commtment_transaction_number,
+			cur_counterparty_commitment_transaction_number,
 			value_to_self_msat,
 
 			pending_inbound_htlcs,
@@ -4230,15 +4230,15 @@ impl<ChanSigner: ChannelKeys + Readable> Readable for Channel<ChanSigner> {
 
 			pending_update_fee,
 			holding_cell_update_fee,
-			next_local_htlc_id,
-			next_remote_htlc_id,
+			next_our_htlc_id,
+			next_counterparty_htlc_id,
 			update_time_counter,
 			feerate_per_kw,
 
 			#[cfg(debug_assertions)]
-			max_commitment_tx_output_local: ::std::sync::Mutex::new((0, 0)),
+			max_commitment_tx_output_our: ::std::sync::Mutex::new((0, 0)),
 			#[cfg(debug_assertions)]
-			max_commitment_tx_output_remote: ::std::sync::Mutex::new((0, 0)),
+			max_commitment_tx_output_counterparty: ::std::sync::Mutex::new((0, 0)),
 
 			last_sent_closing_fee,
 
@@ -4248,24 +4248,24 @@ impl<ChanSigner: ChannelKeys + Readable> Readable for Channel<ChanSigner> {
 			last_block_connected,
 			funding_tx_confirmations,
 
-			their_dust_limit_satoshis,
+			counterparty_dust_limit_satoshis,
 			our_dust_limit_satoshis,
-			their_max_htlc_value_in_flight_msat,
-			local_channel_reserve_satoshis,
-			their_htlc_minimum_msat,
+			counterparty_max_htlc_value_in_flight_msat,
+			our_channel_reserve_satoshis,
+			counterparty_htlc_minimum_msat,
 			our_htlc_minimum_msat,
-			their_to_self_delay,
+			counterparty_to_self_delay,
 			our_to_self_delay,
-			their_max_accepted_htlcs,
+			counterparty_max_accepted_htlcs,
 			minimum_depth,
 
-			their_pubkeys,
-			their_cur_commitment_point,
+			counterparty_pubkeys,
+			counterparty_cur_commitment_point,
 
-			their_prev_commitment_point,
-			their_node_id,
+			counterparty_prev_commitment_point,
+			counterparty_node_id,
 
-			their_shutdown_scriptpubkey,
+			counterparty_shutdown_scriptpubkey,
 
 			channel_monitor: Some(channel_monitor),
 			commitment_secrets,
@@ -4369,14 +4369,14 @@ mod tests {
 		// 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 node_a_counterparty_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, &config).unwrap();
+		let mut node_a_chan = Channel::<EnforcingChannelKeys>::new_outbound(&&feeest, &&keys_provider, node_a_counterparty_node_id, 10000000, 100000, 42, &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, &config).unwrap();
+		let node_b_counterparty_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_counterparty_node_id, InitFeatures::known(), &open_channel_msg, 7, &config).unwrap();
 
 		// Node B --> Node A: accept channel
 		let accept_channel_msg = node_b_chan.get_accept_channel();
@@ -4446,51 +4446,51 @@ mod tests {
 				hex::decode("023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb").unwrap()[..]);
 		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 counterparty_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, 10_000_000, 100000, 42, &config).unwrap(); // Nothing uses their network key in this test
-		chan.their_to_self_delay = 144;
+		let mut chan = Channel::<InMemoryChannelKeys>::new_outbound(&&feeest, &&keys_provider, counterparty_node_id, 10_000_000, 100000, 42, &config).unwrap(); // Nothing uses their network key in this test
+		chan.counterparty_to_self_delay = 144;
 		chan.our_dust_limit_satoshis = 546;
 
 		let funding_info = OutPoint{ txid: Txid::from_hex("8984484a580b825b9972d7adb15050b3ab624ccd731946b3eeddb92f4e7ef6be").unwrap(), index: 0 };
 		chan.funding_txo = Some(funding_info);
 
-		let their_pubkeys = ChannelPublicKeys {
+		let counterparty_pubkeys = ChannelPublicKeys {
 			funding_pubkey: public_from_secret_hex(&secp_ctx, "1552dfba4f6cf29a62a0af13c8d6981d36d0ef8d61ba10fb0fe90da7634d7e13"),
 			revocation_basepoint: PublicKey::from_slice(&hex::decode("02466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f27").unwrap()[..]).unwrap(),
 			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);
+		chan_keys.set_remote_channel_pubkeys(&counterparty_pubkeys);
 
-		assert_eq!(their_pubkeys.payment_point.serialize()[..],
+		assert_eq!(counterparty_pubkeys.payment_point.serialize()[..],
 		           hex::decode("032c0b7cf95324a07d05398b240174dc0c2be444d96b159aa6c7f7b1e668680991").unwrap()[..]);
 
-		assert_eq!(their_pubkeys.funding_pubkey.serialize()[..],
+		assert_eq!(counterparty_pubkeys.funding_pubkey.serialize()[..],
 		           hex::decode("030e9f7b623d2ccc7c9bd44d66d5ce21ce504c0acf6385a132cec6d3c39fa711c1").unwrap()[..]);
 
-		assert_eq!(their_pubkeys.htlc_basepoint.serialize()[..],
+		assert_eq!(counterparty_pubkeys.htlc_basepoint.serialize()[..],
 		           hex::decode("032c0b7cf95324a07d05398b240174dc0c2be444d96b159aa6c7f7b1e668680991").unwrap()[..]);
 
 		// We can't just use build_local_transaction_keys here as the per_commitment_secret is not
 		// derived from a commitment_seed, so instead we copy it here and call
 		// build_commitment_transaction.
-		let delayed_payment_base = PublicKey::from_secret_key(&secp_ctx, chan.local_keys.delayed_payment_base_key());
+		let delayed_payment_base = PublicKey::from_secret_key(&secp_ctx, chan.our_keys.delayed_payment_base_key());
 		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.htlc_basepoint).unwrap();
+		let htlc_basepoint = PublicKey::from_secret_key(&secp_ctx, chan.our_keys.htlc_base_key());
+		let keys = TxCreationKeys::new(&secp_ctx, &per_commitment_point, &delayed_payment_base, &htlc_basepoint, &counterparty_pubkeys.revocation_basepoint, &counterparty_pubkeys.htlc_basepoint).unwrap();
 
-		chan.their_pubkeys = Some(their_pubkeys);
+		chan.counterparty_pubkeys = Some(counterparty_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, {
-				$( { $htlc_idx: expr, $their_htlc_sig_hex: expr, $our_htlc_sig_hex: expr, $htlc_tx_hex: expr } ), *
+			( $counterparty_sig_hex: expr, $our_sig_hex: expr, $tx_hex: expr, {
+				$( { $htlc_idx: expr, $htlc_sig_hex: expr, $our_htlc_sig_hex: expr, $htlc_tx_hex: expr } ), *
 			} ) => { {
 				unsigned_tx = {
 					let mut res = chan.build_commitment_transaction(0xffffffffffff - 42, &keys, true, false, chan.feerate_per_kw, &logger);
@@ -4500,30 +4500,30 @@ mod tests {
 					(res.0, htlcs)
 				};
 				let redeemscript = chan.get_funding_redeemscript();
-				let their_signature = Signature::from_der(&hex::decode($their_sig_hex).unwrap()[..]).unwrap();
+				let signature = Signature::from_der(&hex::decode($counterparty_sig_hex).unwrap()[..]).unwrap();
 				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();
+				secp_ctx.verify(&sighash, &signature, chan.counterparty_funding_pubkey()).unwrap();
 
 				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();
+					let remote_signature = Signature::from_der(&hex::decode($htlc_sig_hex).unwrap()[..]).unwrap();
 					per_htlc.push((unsigned_tx.1[$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);
+				localtx = LocalCommitmentTransaction::new_missing_local_sig(unsigned_tx.0.clone(), signature.clone(), &PublicKey::from_secret_key(&secp_ctx, chan.our_keys.funding_key()), chan.counterparty_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.add_local_sig(&redeemscript, local_sig))[..],
 						hex::decode($tx_hex).unwrap()[..]);
 
-				let htlc_sigs = chan_keys.sign_local_commitment_htlc_transactions(&localtx, chan.their_to_self_delay, &chan.secp_ctx).unwrap();
+				let htlc_sigs = chan_keys.sign_local_commitment_htlc_transactions(&localtx, chan.counterparty_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 remote_signature = Signature::from_der(&hex::decode($htlc_sig_hex).unwrap()[..]).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);
@@ -4549,7 +4549,7 @@ mod tests {
 
 					let our_signature = Signature::from_der(&hex::decode($our_htlc_sig_hex).unwrap()[..]).unwrap();
 					assert_eq!(Some(our_signature), *(htlc_sig.1).1);
-					assert_eq!(serialize(&localtx.get_signed_htlc_tx((htlc_sig.1).0, &(htlc_sig.1).1.unwrap(), &preimage, chan.their_to_self_delay))[..],
+					assert_eq!(serialize(&localtx.get_signed_htlc_tx((htlc_sig.1).0, &(htlc_sig.1).1.unwrap(), &preimage, chan.counterparty_to_self_delay))[..],
 							hex::decode($htlc_tx_hex).unwrap()[..]);
 				})*
 				loop {
diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs
index 3b17813749b..8e618fac568 100644
--- a/lightning/src/ln/channelmanager.rs
+++ b/lightning/src/ln/channelmanager.rs
@@ -521,7 +521,7 @@ pub enum PaymentSendFailure {
 }
 
 macro_rules! handle_error {
-	($self: ident, $internal: expr, $their_node_id: expr) => {
+	($self: ident, $internal: expr, $counterparty_node_id: expr) => {
 		match $internal {
 			Ok(msg) => Ok(msg),
 			Err(MsgHandleErrInternal { err, shutdown_finish }) => {
@@ -547,7 +547,7 @@ macro_rules! handle_error {
 				if let msgs::ErrorAction::IgnoreError = err.action {
 				} else {
 					msg_events.push(events::MessageSendEvent::HandleError {
-						node_id: $their_node_id,
+						node_id: $counterparty_node_id,
 						action: err.action.clone()
 					});
 				}
@@ -793,7 +793,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				res.push(ChannelDetails {
 					channel_id: (*channel_id).clone(),
 					short_channel_id: channel.get_short_channel_id(),
-					remote_network_id: channel.get_their_node_id(),
+					remote_network_id: channel.get_counterparty_node_id(),
 					counterparty_features: InitFeatures::empty(),
 					channel_value_satoshis: channel.get_value_satoshis(),
 					inbound_capacity_msat,
@@ -845,7 +845,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				hash_map::Entry::Occupied(mut chan_entry) => {
 					let (shutdown_msg, failed_htlcs) = chan_entry.get_mut().get_shutdown()?;
 					channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown {
-						node_id: chan_entry.get().get_their_node_id(),
+						node_id: chan_entry.get().get_counterparty_node_id(),
 						msg: shutdown_msg
 					});
 					if chan_entry.get().is_shutdown() {
@@ -1148,7 +1148,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 					if !chan.is_live() { // channel_disabled
 						break Some(("Forwarding channel is not in a ready state.", 0x1000 | 20, Some(self.get_channel_update(chan).unwrap())));
 					}
-					if *amt_to_forward < chan.get_their_htlc_minimum_msat() { // amount_below_minimum
+					if *amt_to_forward < chan.get_counterparty_htlc_minimum_msat() { // amount_below_minimum
 						break Some(("HTLC amount was below the htlc_minimum_msat", 0x1000 | 11, Some(self.get_channel_update(chan).unwrap())));
 					}
 					let fee = amt_to_forward.checked_mul(chan.get_fee_proportional_millionths() as u64).and_then(|prop_fee| { (prop_fee / 1000000).checked_add(chan.get_our_fee_base_msat(&self.fee_estimator) as u64) });
@@ -1205,7 +1205,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			Some(id) => id,
 		};
 
-		let were_node_one = PublicKey::from_secret_key(&self.secp_ctx, &self.our_network_key).serialize()[..] < chan.get_their_node_id().serialize()[..];
+		let were_node_one = PublicKey::from_secret_key(&self.secp_ctx, &self.our_network_key).serialize()[..] < chan.get_counterparty_node_id().serialize()[..];
 
 		let unsigned = msgs::UnsignedChannelUpdate {
 			chain_hash: self.genesis_hash,
@@ -1253,7 +1253,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			let channel_state = &mut *channel_lock;
 			if let hash_map::Entry::Occupied(mut chan) = channel_state.by_id.entry(id) {
 				match {
-					if chan.get().get_their_node_id() != path.first().unwrap().pubkey {
+					if chan.get().get_counterparty_node_id() != path.first().unwrap().pubkey {
 						return Err(APIError::RouteError{err: "Node ID mismatch on first hop!"});
 					}
 					if !chan.get().is_live() {
@@ -1422,7 +1422,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				},
 				None => return
 			};
-			match handle_error!(self, res, chan.get_their_node_id()) {
+			match handle_error!(self, res, chan.get_counterparty_node_id()) {
 				Ok(funding_msg) => {
 					(chan, funding_msg)
 				},
@@ -1432,7 +1432,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 
 		let mut channel_state = self.channel_state.lock().unwrap();
 		channel_state.pending_msg_events.push(events::MessageSendEvent::SendFundingCreated {
-			node_id: chan.get_their_node_id(),
+			node_id: chan.get_counterparty_node_id(),
 			msg: msg,
 		});
 		match channel_state.by_id.entry(chan.channel_id()) {
@@ -1643,7 +1643,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 								Err(e) => {
 									// We surely failed send_commitment due to bad keys, in that case
 									// close channel and then send error message to peer.
-									let their_node_id = chan.get().get_their_node_id();
+									let counterparty_node_id = chan.get().get_counterparty_node_id();
 									let err: Result<(), _>  = match e {
 										ChannelError::Ignore(_) => {
 											panic!("Stated return value requirements in send_commitment() were not met");
@@ -1658,16 +1658,16 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 										},
 										ChannelError::CloseDelayBroadcast(_) => { panic!("Wait is only generated on receipt of channel_reestablish, which is handled by try_chan_entry, we don't bother to support it here"); }
 									};
-									handle_errors.push((their_node_id, err));
+									handle_errors.push((counterparty_node_id, err));
 									continue;
 								}
 							};
 							if let Err(e) = self.monitor.update_monitor(chan.get().get_funding_txo().unwrap(), monitor_update) {
-								handle_errors.push((chan.get().get_their_node_id(), handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, true)));
+								handle_errors.push((chan.get().get_counterparty_node_id(), handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, true)));
 								continue;
 							}
 							channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
-								node_id: chan.get().get_their_node_id(),
+								node_id: chan.get().get_counterparty_node_id(),
 								updates: msgs::CommitmentUpdate {
 									update_add_htlcs: add_htlc_msgs,
 									update_fulfill_htlcs: Vec::new(),
@@ -1760,8 +1760,8 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), htlc_source, &payment_hash, failure_reason);
 		}
 
-		for (their_node_id, err) in handle_errors.drain(..) {
-			let _ = handle_error!(self, err, their_node_id);
+		for (counterparty_node_id, err) in handle_errors.drain(..) {
+			let _ = handle_error!(self, err, counterparty_node_id);
 		}
 
 		if new_events.is_empty() { return }
@@ -2010,9 +2010,9 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			// which were generated.
 			channel_state.take();
 
-			for (their_node_id, err) in errs.drain(..) {
+			for (counterparty_node_id, err) in errs.drain(..) {
 				let res: Result<(), _> = Err(err);
-				let _ = handle_error!(self, res, their_node_id);
+				let _ = handle_error!(self, res, counterparty_node_id);
 			}
 
 			claimed_any_htlcs
@@ -2038,13 +2038,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 							if was_frozen_for_monitor {
 								assert!(msgs.is_none());
 							} else {
-								return Err(Some((chan.get().get_their_node_id(), handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, msgs.is_some()).unwrap_err())));
+								return Err(Some((chan.get().get_counterparty_node_id(), handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, msgs.is_some()).unwrap_err())));
 							}
 						}
 					}
 					if let Some((msg, commitment_signed)) = msgs {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
-							node_id: chan.get().get_their_node_id(),
+							node_id: chan.get().get_counterparty_node_id(),
 							updates: msgs::CommitmentUpdate {
 								update_add_htlcs: Vec::new(),
 								update_fulfill_htlcs: vec![msg],
@@ -2082,7 +2082,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				});
 			},
 			HTLCSource::PreviousHopData(hop_data) => {
-				if let Err((their_node_id, err)) = match self.claim_funds_from_hop(&mut channel_state_lock, hop_data, payment_preimage) {
+				if let Err((counterparty_node_id, err)) = match self.claim_funds_from_hop(&mut channel_state_lock, hop_data, payment_preimage) {
 					Ok(()) => Ok(()),
 					Err(None) => {
 						// TODO: There is probably a channel monitor somewhere that needs to
@@ -2094,7 +2094,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				} {
 					mem::drop(channel_state_lock);
 					let res: Result<(), _> = Err(err);
-					let _ = handle_error!(self, res, their_node_id);
+					let _ = handle_error!(self, res, counterparty_node_id);
 				}
 			},
 		}
@@ -2155,7 +2155,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			macro_rules! handle_cs { () => {
 				if let Some(update) = commitment_update {
 					pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
-						node_id: channel.get_their_node_id(),
+						node_id: channel.get_counterparty_node_id(),
 						updates: update,
 					});
 				}
@@ -2163,7 +2163,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			macro_rules! handle_raa { () => {
 				if let Some(revoke_and_ack) = raa {
 					pending_msg_events.push(events::MessageSendEvent::SendRevokeAndACK {
-						node_id: channel.get_their_node_id(),
+						node_id: channel.get_counterparty_node_id(),
 						msg: revoke_and_ack,
 					});
 				}
@@ -2186,12 +2186,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			}
 			if let Some(msg) = funding_locked {
 				pending_msg_events.push(events::MessageSendEvent::SendFundingLocked {
-					node_id: channel.get_their_node_id(),
+					node_id: channel.get_counterparty_node_id(),
 					msg,
 				});
 				if let Some(announcement_sigs) = self.get_announcement_sigs(channel) {
 					pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
-						node_id: channel.get_their_node_id(),
+						node_id: channel.get_counterparty_node_id(),
 						msg: announcement_sigs,
 					});
 				}
@@ -2211,12 +2211,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		}
 	}
 
-	fn internal_open_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel) -> Result<(), MsgHandleErrInternal> {
+	fn internal_open_channel(&self, counterparty_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel) -> Result<(), MsgHandleErrInternal> {
 		if msg.chain_hash != self.genesis_hash {
 			return Err(MsgHandleErrInternal::send_err_msg_no_close("Unknown genesis block hash", msg.temporary_channel_id.clone()));
 		}
 
-		let channel = Channel::new_from_req(&self.fee_estimator, &self.keys_manager, their_node_id.clone(), their_features, msg, 0, &self.default_configuration)
+		let channel = Channel::new_from_req(&self.fee_estimator, &self.keys_manager, counterparty_node_id.clone(), their_features, msg, 0, &self.default_configuration)
 			.map_err(|e| MsgHandleErrInternal::from_chan_no_close(e, msg.temporary_channel_id))?;
 		let mut channel_state_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_state_lock;
@@ -2224,7 +2224,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			hash_map::Entry::Occupied(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("temporary_channel_id collision!", msg.temporary_channel_id.clone())),
 			hash_map::Entry::Vacant(entry) => {
 				channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel {
-					node_id: their_node_id.clone(),
+					node_id: counterparty_node_id.clone(),
 					msg: channel.get_accept_channel(),
 				});
 				entry.insert(channel);
@@ -2233,13 +2233,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_accept_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::AcceptChannel) -> Result<(), MsgHandleErrInternal> {
+	fn internal_accept_channel(&self, counterparty_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::AcceptChannel) -> Result<(), MsgHandleErrInternal> {
 		let (value, output_script, user_id) = {
 			let mut channel_lock = self.channel_state.lock().unwrap();
 			let channel_state = &mut *channel_lock;
 			match channel_state.by_id.entry(msg.temporary_channel_id) {
 				hash_map::Entry::Occupied(mut chan) => {
-					if chan.get().get_their_node_id() != *their_node_id {
+					if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 						return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.temporary_channel_id));
 					}
 					try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration, their_features), channel_state, chan);
@@ -2258,13 +2258,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_funding_created(&self, their_node_id: &PublicKey, msg: &msgs::FundingCreated) -> Result<(), MsgHandleErrInternal> {
+	fn internal_funding_created(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingCreated) -> Result<(), MsgHandleErrInternal> {
 		let ((funding_msg, monitor_update), mut chan) = {
 			let mut channel_lock = self.channel_state.lock().unwrap();
 			let channel_state = &mut *channel_lock;
 			match channel_state.by_id.entry(msg.temporary_channel_id.clone()) {
 				hash_map::Entry::Occupied(mut chan) => {
-					if chan.get().get_their_node_id() != *their_node_id {
+					if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 						return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.temporary_channel_id));
 					}
 					(try_chan_entry!(self, chan.get_mut().funding_created(msg, &self.logger), channel_state, chan), chan.remove())
@@ -2300,7 +2300,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			},
 			hash_map::Entry::Vacant(e) => {
 				channel_state.pending_msg_events.push(events::MessageSendEvent::SendFundingSigned {
-					node_id: their_node_id.clone(),
+					node_id: counterparty_node_id.clone(),
 					msg: funding_msg,
 				});
 				e.insert(chan);
@@ -2309,13 +2309,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_funding_signed(&self, their_node_id: &PublicKey, msg: &msgs::FundingSigned) -> Result<(), MsgHandleErrInternal> {
+	fn internal_funding_signed(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingSigned) -> Result<(), MsgHandleErrInternal> {
 		let (funding_txo, user_id) = {
 			let mut channel_lock = self.channel_state.lock().unwrap();
 			let channel_state = &mut *channel_lock;
 			match channel_state.by_id.entry(msg.channel_id) {
 				hash_map::Entry::Occupied(mut chan) => {
-					if chan.get().get_their_node_id() != *their_node_id {
+					if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 						return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 					}
 					let monitor = match chan.get_mut().funding_signed(&msg, &self.logger) {
@@ -2338,12 +2338,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_funding_locked(&self, their_node_id: &PublicKey, msg: &msgs::FundingLocked) -> Result<(), MsgHandleErrInternal> {
+	fn internal_funding_locked(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingLocked) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_state_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_state_lock;
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				try_chan_entry!(self, chan.get_mut().funding_locked(&msg), channel_state, chan);
@@ -2359,7 +2359,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 					// failures is an issue. Note, to achieve its goal, only one of the announcement_sigs needs
 					// to be received, from then sigs are going to be flood to the whole network.
 					channel_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
-						node_id: their_node_id.clone(),
+						node_id: counterparty_node_id.clone(),
 						msg: announcement_sigs,
 					});
 				}
@@ -2369,26 +2369,26 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		}
 	}
 
-	fn internal_shutdown(&self, their_node_id: &PublicKey, msg: &msgs::Shutdown) -> Result<(), MsgHandleErrInternal> {
+	fn internal_shutdown(&self, counterparty_node_id: &PublicKey, msg: &msgs::Shutdown) -> Result<(), MsgHandleErrInternal> {
 		let (mut dropped_htlcs, chan_option) = {
 			let mut channel_state_lock = self.channel_state.lock().unwrap();
 			let channel_state = &mut *channel_state_lock;
 
 			match channel_state.by_id.entry(msg.channel_id.clone()) {
 				hash_map::Entry::Occupied(mut chan_entry) => {
-					if chan_entry.get().get_their_node_id() != *their_node_id {
+					if chan_entry.get().get_counterparty_node_id() != *counterparty_node_id {
 						return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 					}
 					let (shutdown, closing_signed, dropped_htlcs) = try_chan_entry!(self, chan_entry.get_mut().shutdown(&self.fee_estimator, &msg), channel_state, chan_entry);
 					if let Some(msg) = shutdown {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown {
-							node_id: their_node_id.clone(),
+							node_id: counterparty_node_id.clone(),
 							msg,
 						});
 					}
 					if let Some(msg) = closing_signed {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
-							node_id: their_node_id.clone(),
+							node_id: counterparty_node_id.clone(),
 							msg,
 						});
 					}
@@ -2416,19 +2416,19 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_closing_signed(&self, their_node_id: &PublicKey, msg: &msgs::ClosingSigned) -> Result<(), MsgHandleErrInternal> {
+	fn internal_closing_signed(&self, counterparty_node_id: &PublicKey, msg: &msgs::ClosingSigned) -> Result<(), MsgHandleErrInternal> {
 		let (tx, chan_option) = {
 			let mut channel_state_lock = self.channel_state.lock().unwrap();
 			let channel_state = &mut *channel_state_lock;
 			match channel_state.by_id.entry(msg.channel_id.clone()) {
 				hash_map::Entry::Occupied(mut chan_entry) => {
-					if chan_entry.get().get_their_node_id() != *their_node_id {
+					if chan_entry.get().get_counterparty_node_id() != *counterparty_node_id {
 						return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 					}
 					let (closing_signed, tx) = try_chan_entry!(self, chan_entry.get_mut().closing_signed(&self.fee_estimator, &msg), channel_state, chan_entry);
 					if let Some(msg) = closing_signed {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
-							node_id: their_node_id.clone(),
+							node_id: counterparty_node_id.clone(),
 							msg,
 						});
 					}
@@ -2462,7 +2462,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_update_add_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateAddHTLC) -> Result<(), MsgHandleErrInternal> {
+	fn internal_update_add_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateAddHTLC) -> Result<(), MsgHandleErrInternal> {
 		//TODO: BOLT 4 points out a specific attack where a peer may re-send an onion packet and
 		//determine the state of the payment based on our response/if we forward anything/the time
 		//we take to respond. We should take care to avoid allowing such an attack.
@@ -2477,7 +2477,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				if !chan.get().is_usable() {
@@ -2519,13 +2519,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) -> Result<(), MsgHandleErrInternal> {
+	fn internal_update_fulfill_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_lock = self.channel_state.lock().unwrap();
 		let htlc_source = {
 			let channel_state = &mut *channel_lock;
 			match channel_state.by_id.entry(msg.channel_id) {
 				hash_map::Entry::Occupied(mut chan) => {
-					if chan.get().get_their_node_id() != *their_node_id {
+					if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 						return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 					}
 					try_chan_entry!(self, chan.get_mut().update_fulfill_htlc(&msg), channel_state, chan)
@@ -2537,12 +2537,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), MsgHandleErrInternal> {
+	fn internal_update_fail_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_lock;
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				try_chan_entry!(self, chan.get_mut().update_fail_htlc(&msg, HTLCFailReason::LightningError { err: msg.reason.clone() }), channel_state, chan);
@@ -2552,12 +2552,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) -> Result<(), MsgHandleErrInternal> {
+	fn internal_update_fail_malformed_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_lock;
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				if (msg.failure_code & 0x8000) == 0 {
@@ -2571,12 +2571,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		}
 	}
 
-	fn internal_commitment_signed(&self, their_node_id: &PublicKey, msg: &msgs::CommitmentSigned) -> Result<(), MsgHandleErrInternal> {
+	fn internal_commitment_signed(&self, counterparty_node_id: &PublicKey, msg: &msgs::CommitmentSigned) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_state_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_state_lock;
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				let (revoke_and_ack, commitment_signed, closing_signed, monitor_update) =
@@ -2595,12 +2595,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 					//TODO: Rebroadcast closing_signed if present on monitor update restoration
 				}
 				channel_state.pending_msg_events.push(events::MessageSendEvent::SendRevokeAndACK {
-					node_id: their_node_id.clone(),
+					node_id: counterparty_node_id.clone(),
 					msg: revoke_and_ack,
 				});
 				if let Some(msg) = commitment_signed {
 					channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
-						node_id: their_node_id.clone(),
+						node_id: counterparty_node_id.clone(),
 						updates: msgs::CommitmentUpdate {
 							update_add_htlcs: Vec::new(),
 							update_fulfill_htlcs: Vec::new(),
@@ -2613,7 +2613,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				}
 				if let Some(msg) = closing_signed {
 					channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
-						node_id: their_node_id.clone(),
+						node_id: counterparty_node_id.clone(),
 						msg,
 					});
 				}
@@ -2658,13 +2658,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		}
 	}
 
-	fn internal_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &msgs::RevokeAndACK) -> Result<(), MsgHandleErrInternal> {
+	fn internal_revoke_and_ack(&self, counterparty_node_id: &PublicKey, msg: &msgs::RevokeAndACK) -> Result<(), MsgHandleErrInternal> {
 		let (pending_forwards, mut pending_failures, short_channel_id) = {
 			let mut channel_state_lock = self.channel_state.lock().unwrap();
 			let channel_state = &mut *channel_state_lock;
 			match channel_state.by_id.entry(msg.channel_id) {
 				hash_map::Entry::Occupied(mut chan) => {
-					if chan.get().get_their_node_id() != *their_node_id {
+					if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 						return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 					}
 					let was_frozen_for_monitor = chan.get().is_awaiting_monitor_update();
@@ -2680,13 +2680,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 					}
 					if let Some(updates) = commitment_update {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
-							node_id: their_node_id.clone(),
+							node_id: counterparty_node_id.clone(),
 							updates,
 						});
 					}
 					if let Some(msg) = closing_signed {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
-							node_id: their_node_id.clone(),
+							node_id: counterparty_node_id.clone(),
 							msg,
 						});
 					}
@@ -2703,12 +2703,12 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_update_fee(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFee) -> Result<(), MsgHandleErrInternal> {
+	fn internal_update_fee(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFee) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_lock;
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				try_chan_entry!(self, chan.get_mut().update_fee(&self.fee_estimator, &msg), channel_state, chan);
@@ -2718,13 +2718,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_announcement_signatures(&self, their_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) -> Result<(), MsgHandleErrInternal> {
+	fn internal_announcement_signatures(&self, counterparty_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_state_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_state_lock;
 
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				if !chan.get().is_usable() {
@@ -2761,13 +2761,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 		Ok(())
 	}
 
-	fn internal_channel_reestablish(&self, their_node_id: &PublicKey, msg: &msgs::ChannelReestablish) -> Result<(), MsgHandleErrInternal> {
+	fn internal_channel_reestablish(&self, counterparty_node_id: &PublicKey, msg: &msgs::ChannelReestablish) -> Result<(), MsgHandleErrInternal> {
 		let mut channel_state_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_state_lock;
 
 		match channel_state.by_id.entry(msg.channel_id) {
 			hash_map::Entry::Occupied(mut chan) => {
-				if chan.get().get_their_node_id() != *their_node_id {
+				if chan.get().get_counterparty_node_id() != *counterparty_node_id {
 					return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
 				}
 				let (funding_locked, revoke_and_ack, commitment_update, monitor_update_opt, mut order, shutdown) =
@@ -2789,14 +2789,14 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				}
 				if let Some(msg) = funding_locked {
 					channel_state.pending_msg_events.push(events::MessageSendEvent::SendFundingLocked {
-						node_id: their_node_id.clone(),
+						node_id: counterparty_node_id.clone(),
 						msg
 					});
 				}
 				macro_rules! send_raa { () => {
 					if let Some(msg) = revoke_and_ack {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::SendRevokeAndACK {
-							node_id: their_node_id.clone(),
+							node_id: counterparty_node_id.clone(),
 							msg
 						});
 					}
@@ -2804,7 +2804,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				macro_rules! send_cu { () => {
 					if let Some(updates) = commitment_update {
 						channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
-							node_id: their_node_id.clone(),
+							node_id: counterparty_node_id.clone(),
 							updates
 						});
 					}
@@ -2821,7 +2821,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 				}
 				if let Some(msg) = shutdown {
 					channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown {
-						node_id: their_node_id.clone(),
+						node_id: counterparty_node_id.clone(),
 						msg,
 					});
 				}
@@ -2838,7 +2838,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 	#[doc(hidden)]
 	pub fn update_fee(&self, channel_id: [u8;32], feerate_per_kw: u64) -> Result<(), APIError> {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let their_node_id;
+		let counterparty_node_id;
 		let err: Result<(), _> = loop {
 			let mut channel_state_lock = self.channel_state.lock().unwrap();
 			let channel_state = &mut *channel_state_lock;
@@ -2855,7 +2855,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 					if !chan.get().is_live() {
 						return Err(APIError::ChannelUnavailable{err: "Channel is either not yet fully established or peer is currently disconnected"});
 					}
-					their_node_id = chan.get().get_their_node_id();
+					counterparty_node_id = chan.get().get_counterparty_node_id();
 					if let Some((update_fee, commitment_signed, monitor_update)) =
 							break_chan_entry!(self, chan.get_mut().send_update_fee_and_commit(feerate_per_kw, &self.logger), channel_state, chan)
 					{
@@ -2863,7 +2863,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 							unimplemented!();
 						}
 						channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
-							node_id: chan.get().get_their_node_id(),
+							node_id: chan.get().get_counterparty_node_id(),
 							updates: msgs::CommitmentUpdate {
 								update_add_htlcs: Vec::new(),
 								update_fulfill_htlcs: Vec::new(),
@@ -2879,7 +2879,7 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 			return Ok(())
 		};
 
-		match handle_error!(self, err, their_node_id) {
+		match handle_error!(self, err, counterparty_node_id) {
 			Ok(_) => unreachable!(),
 			Err(e) => { Err(APIError::APIMisuseError { err: e.err })}
 		}
@@ -2979,13 +2979,13 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 					}
 					if let Some(funding_locked) = chan_res {
 						pending_msg_events.push(events::MessageSendEvent::SendFundingLocked {
-							node_id: channel.get_their_node_id(),
+							node_id: channel.get_counterparty_node_id(),
 							msg: funding_locked,
 						});
 						if let Some(announcement_sigs) = self.get_announcement_sigs(channel) {
 							log_trace!(self.logger, "Sending funding_locked and announcement_signatures for {}", log_bytes!(channel.channel_id()));
 							pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
-								node_id: channel.get_their_node_id(),
+								node_id: channel.get_counterparty_node_id(),
 								msg: announcement_sigs,
 							});
 						} else {
@@ -2995,7 +2995,7 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 					}
 				} else if let Err(e) = res {
 					pending_msg_events.push(events::MessageSendEvent::HandleError {
-						node_id: channel.get_their_node_id(),
+						node_id: channel.get_counterparty_node_id(),
 						action: msgs::ErrorAction::SendErrorMessage { msg: e },
 					});
 					return false;
@@ -3124,87 +3124,87 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
         F::Target: FeeEstimator,
         L::Target: Logger,
 {
-	fn handle_open_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel) {
+	fn handle_open_channel(&self, counterparty_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_open_channel(their_node_id, their_features, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_open_channel(counterparty_node_id, their_features, msg), *counterparty_node_id);
 	}
 
-	fn handle_accept_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::AcceptChannel) {
+	fn handle_accept_channel(&self, counterparty_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::AcceptChannel) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_accept_channel(their_node_id, their_features, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_accept_channel(counterparty_node_id, their_features, msg), *counterparty_node_id);
 	}
 
-	fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &msgs::FundingCreated) {
+	fn handle_funding_created(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingCreated) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_funding_created(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_funding_created(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_funding_signed(&self, their_node_id: &PublicKey, msg: &msgs::FundingSigned) {
+	fn handle_funding_signed(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingSigned) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_funding_signed(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_funding_signed(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_funding_locked(&self, their_node_id: &PublicKey, msg: &msgs::FundingLocked) {
+	fn handle_funding_locked(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingLocked) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_funding_locked(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_funding_locked(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &msgs::Shutdown) {
+	fn handle_shutdown(&self, counterparty_node_id: &PublicKey, msg: &msgs::Shutdown) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_shutdown(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_shutdown(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &msgs::ClosingSigned) {
+	fn handle_closing_signed(&self, counterparty_node_id: &PublicKey, msg: &msgs::ClosingSigned) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_closing_signed(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_closing_signed(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_update_add_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateAddHTLC) {
+	fn handle_update_add_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateAddHTLC) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_update_add_htlc(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_update_add_htlc(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) {
+	fn handle_update_fulfill_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_update_fulfill_htlc(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_update_fulfill_htlc(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) {
+	fn handle_update_fail_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_update_fail_htlc(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_update_fail_htlc(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) {
+	fn handle_update_fail_malformed_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_update_fail_malformed_htlc(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_update_fail_malformed_htlc(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_commitment_signed(&self, their_node_id: &PublicKey, msg: &msgs::CommitmentSigned) {
+	fn handle_commitment_signed(&self, counterparty_node_id: &PublicKey, msg: &msgs::CommitmentSigned) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_commitment_signed(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_commitment_signed(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &msgs::RevokeAndACK) {
+	fn handle_revoke_and_ack(&self, counterparty_node_id: &PublicKey, msg: &msgs::RevokeAndACK) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_revoke_and_ack(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_revoke_and_ack(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_update_fee(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFee) {
+	fn handle_update_fee(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFee) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_update_fee(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_update_fee(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_announcement_signatures(&self, their_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) {
+	fn handle_announcement_signatures(&self, counterparty_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_announcement_signatures(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_announcement_signatures(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn handle_channel_reestablish(&self, their_node_id: &PublicKey, msg: &msgs::ChannelReestablish) {
+	fn handle_channel_reestablish(&self, counterparty_node_id: &PublicKey, msg: &msgs::ChannelReestablish) {
 		let _ = self.total_consistency_lock.read().unwrap();
-		let _ = handle_error!(self, self.internal_channel_reestablish(their_node_id, msg), *their_node_id);
+		let _ = handle_error!(self, self.internal_channel_reestablish(counterparty_node_id, msg), *counterparty_node_id);
 	}
 
-	fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool) {
+	fn peer_disconnected(&self, counterparty_node_id: &PublicKey, no_connection_possible: bool) {
 		let _ = self.total_consistency_lock.read().unwrap();
 		let mut failed_channels = Vec::new();
 		let mut failed_payments = Vec::new();
@@ -3215,9 +3215,9 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 			let short_to_id = &mut channel_state.short_to_id;
 			let pending_msg_events = &mut channel_state.pending_msg_events;
 			if no_connection_possible {
-				log_debug!(self.logger, "Failing all channels with {} due to no_connection_possible", log_pubkey!(their_node_id));
+				log_debug!(self.logger, "Failing all channels with {} due to no_connection_possible", log_pubkey!(counterparty_node_id));
 				channel_state.by_id.retain(|_, chan| {
-					if chan.get_their_node_id() == *their_node_id {
+					if chan.get_counterparty_node_id() == *counterparty_node_id {
 						if let Some(short_id) = chan.get_short_channel_id() {
 							short_to_id.remove(&short_id);
 						}
@@ -3233,9 +3233,9 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 					}
 				});
 			} else {
-				log_debug!(self.logger, "Marking channels with {} disconnected and generating channel_updates", log_pubkey!(their_node_id));
+				log_debug!(self.logger, "Marking channels with {} disconnected and generating channel_updates", log_pubkey!(counterparty_node_id));
 				channel_state.by_id.retain(|_, chan| {
-					if chan.get_their_node_id() == *their_node_id {
+					if chan.get_counterparty_node_id() == *counterparty_node_id {
 						let failed_adds = chan.remove_uncommitted_htlcs_and_mark_paused(&self.logger);
 						chan.to_disabled_marked();
 						if !failed_adds.is_empty() {
@@ -3256,27 +3256,27 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 			}
 			pending_msg_events.retain(|msg| {
 				match msg {
-					&events::MessageSendEvent::SendAcceptChannel { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendOpenChannel { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendFundingCreated { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendFundingSigned { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendFundingLocked { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendAnnouncementSignatures { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::UpdateHTLCs { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendRevokeAndACK { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendClosingSigned { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendShutdown { ref node_id, .. } => node_id != their_node_id,
-					&events::MessageSendEvent::SendChannelReestablish { ref node_id, .. } => node_id != their_node_id,
+					&events::MessageSendEvent::SendAcceptChannel { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendOpenChannel { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendFundingCreated { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendFundingSigned { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendFundingLocked { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendAnnouncementSignatures { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::UpdateHTLCs { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendRevokeAndACK { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendClosingSigned { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendShutdown { ref node_id, .. } => node_id != counterparty_node_id,
+					&events::MessageSendEvent::SendChannelReestablish { ref node_id, .. } => node_id != counterparty_node_id,
 					&events::MessageSendEvent::BroadcastChannelAnnouncement { .. } => true,
 					&events::MessageSendEvent::BroadcastNodeAnnouncement { .. } => true,
 					&events::MessageSendEvent::BroadcastChannelUpdate { .. } => true,
-					&events::MessageSendEvent::HandleError { ref node_id, .. } => node_id != their_node_id,
+					&events::MessageSendEvent::HandleError { ref node_id, .. } => node_id != counterparty_node_id,
 					&events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => true,
 				}
 			});
 		}
 		if no_channels_remain {
-			self.per_peer_state.write().unwrap().remove(their_node_id);
+			self.per_peer_state.write().unwrap().remove(counterparty_node_id);
 		}
 
 		for failure in failed_channels.drain(..) {
@@ -3289,14 +3289,14 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 		}
 	}
 
-	fn peer_connected(&self, their_node_id: &PublicKey, init_msg: &msgs::Init) {
-		log_debug!(self.logger, "Generating channel_reestablish events for {}", log_pubkey!(their_node_id));
+	fn peer_connected(&self, counterparty_node_id: &PublicKey, init_msg: &msgs::Init) {
+		log_debug!(self.logger, "Generating channel_reestablish events for {}", log_pubkey!(counterparty_node_id));
 
 		let _ = self.total_consistency_lock.read().unwrap();
 
 		{
 			let mut peer_state_lock = self.per_peer_state.write().unwrap();
-			match peer_state_lock.entry(their_node_id.clone()) {
+			match peer_state_lock.entry(counterparty_node_id.clone()) {
 				hash_map::Entry::Vacant(e) => {
 					e.insert(Mutex::new(PeerState {
 						latest_features: init_msg.features.clone(),
@@ -3312,7 +3312,7 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 		let channel_state = &mut *channel_state_lock;
 		let pending_msg_events = &mut channel_state.pending_msg_events;
 		channel_state.by_id.retain(|_, chan| {
-			if chan.get_their_node_id() == *their_node_id {
+			if chan.get_counterparty_node_id() == *counterparty_node_id {
 				if !chan.have_received_message() {
 					// If we created this (outbound) channel while we were disconnected from the
 					// peer we probably failed to send the open_channel message, which is now
@@ -3321,7 +3321,7 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 					false
 				} else {
 					pending_msg_events.push(events::MessageSendEvent::SendChannelReestablish {
-						node_id: chan.get_their_node_id(),
+						node_id: chan.get_counterparty_node_id(),
 						msg: chan.get_channel_reestablish(&self.logger),
 					});
 					true
@@ -3331,12 +3331,12 @@ impl<ChanSigner: ChannelKeys, M: Deref + Sync + Send, T: Deref + Sync + Send, K:
 		//TODO: Also re-broadcast announcement_signatures
 	}
 
-	fn handle_error(&self, their_node_id: &PublicKey, msg: &msgs::ErrorMessage) {
+	fn handle_error(&self, counterparty_node_id: &PublicKey, msg: &msgs::ErrorMessage) {
 		let _ = self.total_consistency_lock.read().unwrap();
 
 		if msg.channel_id == [0; 32] {
 			for chan in self.list_channels() {
-				if chan.remote_network_id == *their_node_id {
+				if chan.remote_network_id == *counterparty_node_id {
 					self.force_close_channel(&chan.channel_id);
 				}
 			}
@@ -3737,15 +3737,15 @@ impl<'a, ChanSigner: ChannelKeys + Readable, M: Deref, T: Deref, K: Deref, F: De
 			let funding_txo = channel.get_funding_txo().ok_or(DecodeError::InvalidValue)?;
 			funding_txo_set.insert(funding_txo.clone());
 			if let Some(ref mut monitor) = args.channel_monitors.get_mut(&funding_txo) {
-				if channel.get_cur_local_commitment_transaction_number() < monitor.get_cur_local_commitment_number() ||
+				if channel.get_cur_our_commitment_transaction_number() < monitor.get_cur_local_commitment_number() ||
 						channel.get_revoked_remote_commitment_transaction_number() < monitor.get_min_seen_secret() ||
-						channel.get_cur_remote_commitment_transaction_number() < monitor.get_cur_remote_commitment_number() ||
+						channel.get_cur_counterparty_commitment_transaction_number() < monitor.get_cur_remote_commitment_number() ||
 						channel.get_latest_monitor_update_id() > monitor.get_latest_update_id() {
 					// If the channel is ahead of the monitor, return InvalidValue:
 					return Err(DecodeError::InvalidValue);
-				} else if channel.get_cur_local_commitment_transaction_number() > monitor.get_cur_local_commitment_number() ||
+				} else if channel.get_cur_our_commitment_transaction_number() > monitor.get_cur_local_commitment_number() ||
 						channel.get_revoked_remote_commitment_transaction_number() > monitor.get_min_seen_secret() ||
-						channel.get_cur_remote_commitment_transaction_number() > monitor.get_cur_remote_commitment_number() ||
+						channel.get_cur_counterparty_commitment_transaction_number() > monitor.get_cur_remote_commitment_number() ||
 						channel.get_latest_monitor_update_id() < monitor.get_latest_update_id() {
 					// But if the channel is behind of the monitor, close the channel:
 					let (_, _, mut new_failed_htlcs) = channel.force_shutdown(true);
diff --git a/lightning/src/ln/functional_tests.rs b/lightning/src/ln/functional_tests.rs
index 13125a36dda..6ac10ca83fe 100644
--- a/lightning/src/ln/functional_tests.rs
+++ b/lightning/src/ln/functional_tests.rs
@@ -1558,7 +1558,7 @@ fn do_channel_reserve_test(test_recv: bool) {
 	let feemsat = 239; // somehow we know?
 	let total_fee_msat = (nodes.len() - 2) as u64 * 239;
 
-	let recv_value_0 = stat01.their_max_htlc_value_in_flight_msat - total_fee_msat;
+	let recv_value_0 = stat01.counterparty_max_htlc_value_in_flight_msat - total_fee_msat;
 
 	// attempt to send amt_msat > their_max_htlc_value_in_flight_msat
 	{
@@ -3822,8 +3822,8 @@ fn test_invalid_channel_announcement() {
 
 	nodes[0].net_graph_msg_handler.handle_htlc_fail_channel_update(&msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id : as_chan.get_short_channel_id().unwrap(), is_permanent: false } );
 
-	let as_bitcoin_key = as_chan.get_local_keys().inner.local_channel_pubkeys.funding_pubkey;
-	let bs_bitcoin_key = bs_chan.get_local_keys().inner.local_channel_pubkeys.funding_pubkey;
+	let as_bitcoin_key = as_chan.get_our_keys().inner.local_channel_pubkeys.funding_pubkey;
+	let bs_bitcoin_key = bs_chan.get_our_keys().inner.local_channel_pubkeys.funding_pubkey;
 
 	let as_network_key = nodes[0].node.get_our_node_id();
 	let bs_network_key = nodes[1].node.get_our_node_id();
@@ -3850,8 +3850,8 @@ fn test_invalid_channel_announcement() {
 	macro_rules! sign_msg {
 		($unsigned_msg: expr) => {
 			let msghash = Message::from_slice(&Sha256dHash::hash(&$unsigned_msg.encode()[..])[..]).unwrap();
-			let as_bitcoin_sig = secp_ctx.sign(&msghash, &as_chan.get_local_keys().inner.funding_key());
-			let bs_bitcoin_sig = secp_ctx.sign(&msghash, &bs_chan.get_local_keys().inner.funding_key());
+			let as_bitcoin_sig = secp_ctx.sign(&msghash, &as_chan.get_our_keys().inner.funding_key());
+			let bs_bitcoin_sig = secp_ctx.sign(&msghash, &bs_chan.get_our_keys().inner.funding_key());
 			let as_node_sig = secp_ctx.sign(&msghash, &nodes[0].keys_manager.get_node_secret());
 			let bs_node_sig = secp_ctx.sign(&msghash, &nodes[1].keys_manager.get_node_secret());
 			chan_announcement = msgs::ChannelAnnouncement {
@@ -5895,7 +5895,7 @@ fn test_onion_failure() {
 	run_onion_failure_test("unknown_next_peer", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(PERM|10),
 	  Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: bogus_route.paths[0][1].short_channel_id, is_permanent:true}));
 
-	let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_their_htlc_minimum_msat() - 1;
+	let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_counterparty_htlc_minimum_msat() - 1;
 	let mut bogus_route = route.clone();
 	let route_len = bogus_route.paths[0].len();
 	bogus_route.paths[0][route_len-1].fee_msat = amt_to_forward;
@@ -6142,7 +6142,7 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_num_and_htlc_id_increment()
 	let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 	let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 	let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0, InitFeatures::known(), InitFeatures::known());
-	let max_accepted_htlcs = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().their_max_accepted_htlcs as u64;
+	let max_accepted_htlcs = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().counterparty_max_accepted_htlcs as u64;
 
 	let logger = test_utils::TestLogger::new();
 	for i in 0..max_accepted_htlcs {
@@ -6188,7 +6188,7 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_value_in_flight() {
 	let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 	let channel_value = 100000;
 	let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 0, InitFeatures::known(), InitFeatures::known());
-	let max_in_flight = get_channel_value_stat!(nodes[0], chan.2).their_max_htlc_value_in_flight_msat;
+	let max_in_flight = get_channel_value_stat!(nodes[0], chan.2).counterparty_max_htlc_value_in_flight_msat;
 
 	send_payment(&nodes[0], &vec!(&nodes[1])[..], max_in_flight, max_in_flight);
 
@@ -6330,7 +6330,7 @@ fn test_update_add_htlc_bolt2_receiver_check_max_in_flight_msat() {
 	nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
 	check_added_monitors!(nodes[0], 1);
 	let mut updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
-	updates.update_add_htlcs[0].amount_msat = get_channel_value_stat!(nodes[1], chan.2).their_max_htlc_value_in_flight_msat + 1;
+	updates.update_add_htlcs[0].amount_msat = get_channel_value_stat!(nodes[1], chan.2).counterparty_max_htlc_value_in_flight_msat + 1;
 	nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
 
 	assert!(nodes[1].node.list_channels().is_empty());
@@ -7782,7 +7782,7 @@ fn test_counterparty_raa_skip_no_crash() {
 	let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 	let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
 
-	let commitment_seed = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&channel_id).unwrap().local_keys.commitment_seed().clone();
+	let commitment_seed = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&channel_id).unwrap().our_keys.commitment_seed().clone();
 	const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1;
 	let next_per_commitment_point = PublicKey::from_secret_key(&Secp256k1::new(),
 		&SecretKey::from_slice(&chan_utils::build_commitment_secret(&commitment_seed, INITIAL_COMMITMENT_NUMBER - 2)).unwrap());