f sp
[rust-lightning] / lightning / src / chain / channelmonitor.rs
index d855fdd819bad048aa551fa2883cf8dacbc01b5a..ce1ef9128f91efe8327f2f874daca511e7c6e4f1 100644 (file)
@@ -20,9 +20,9 @@
 //! security-domain-separated system design, you should consider having multiple paths for
 //! ChannelMonitors to get out of the HSM and onto monitoring devices.
 
-use bitcoin::blockdata::block::BlockHeader;
+use bitcoin::blockdata::block::Header;
 use bitcoin::blockdata::transaction::{OutPoint as BitcoinOutPoint, TxOut, Transaction};
-use bitcoin::blockdata::script::Script;
+use bitcoin::blockdata::script::{Script, ScriptBuf};
 
 use bitcoin::hashes::Hash;
 use bitcoin::hashes::sha256::Hash as Sha256;
@@ -30,27 +30,28 @@ use bitcoin::hash_types::{Txid, BlockHash};
 
 use bitcoin::secp256k1::{Secp256k1, ecdsa::Signature};
 use bitcoin::secp256k1::{SecretKey, PublicKey};
-use bitcoin::{secp256k1, EcdsaSighashType};
+use bitcoin::secp256k1;
+use bitcoin::sighash::EcdsaSighashType;
 
 use crate::ln::channel::INITIAL_COMMITMENT_NUMBER;
-use crate::ln::{PaymentHash, PaymentPreimage};
+use crate::ln::{PaymentHash, PaymentPreimage, ChannelId};
 use crate::ln::msgs::DecodeError;
-use crate::ln::chan_utils;
-use crate::ln::chan_utils::{CommitmentTransaction, CounterpartyCommitmentSecrets, HTLCOutputInCommitment, HTLCClaim, ChannelTransactionParameters, HolderCommitmentTransaction, TxCreationKeys};
+use crate::ln::channel_keys::{DelayedPaymentKey, DelayedPaymentBasepoint, HtlcBasepoint, HtlcKey, RevocationKey, RevocationBasepoint};
+use crate::ln::chan_utils::{self,CommitmentTransaction, CounterpartyCommitmentSecrets, HTLCOutputInCommitment, HTLCClaim, ChannelTransactionParameters, HolderCommitmentTransaction, TxCreationKeys};
 use crate::ln::channelmanager::{HTLCSource, SentHTLCId};
 use crate::chain;
 use crate::chain::{BestBlock, WatchedOutput};
 use crate::chain::chaininterface::{BroadcasterInterface, FeeEstimator, LowerBoundedFeeEstimator};
 use crate::chain::transaction::{OutPoint, TransactionData};
-use crate::sign::{SpendableOutputDescriptor, StaticPaymentOutputDescriptor, DelayedPaymentOutputDescriptor, WriteableEcdsaChannelSigner, SignerProvider, EntropySource};
+use crate::sign::{ChannelDerivationParameters, HTLCDescriptor, SpendableOutputDescriptor, StaticPaymentOutputDescriptor, DelayedPaymentOutputDescriptor, ecdsa::WriteableEcdsaChannelSigner, SignerProvider, EntropySource};
 use crate::chain::onchaintx::{ClaimEvent, OnchainTxHandler};
 use crate::chain::package::{CounterpartyOfferedHTLCOutput, CounterpartyReceivedHTLCOutput, HolderFundingOutput, HolderHTLCOutput, PackageSolvingData, PackageTemplate, RevokedOutput, RevokedHTLCOutput};
 use crate::chain::Filter;
-use crate::util::logger::Logger;
+use crate::util::logger::{Logger, Record};
 use crate::util::ser::{Readable, ReadableArgs, RequiredWrapper, MaybeReadable, UpgradableRequired, Writer, Writeable, U48};
 use crate::util::byte_utils;
 use crate::events::{Event, EventHandler};
-use crate::events::bump_transaction::{ChannelDerivationParameters, AnchorDescriptor, HTLCDescriptor, BumpTransactionEvent};
+use crate::events::bump_transaction::{AnchorDescriptor, BumpTransactionEvent};
 
 use crate::prelude::*;
 use core::{cmp, mem};
@@ -132,7 +133,8 @@ pub enum MonitorEvent {
        /// A monitor event containing an HTLCUpdate.
        HTLCEvent(HTLCUpdate),
 
-       /// A monitor event that the Channel's commitment transaction was confirmed.
+       /// Indicates we broadcasted the channel's latest commitment transaction and thus closed the
+       /// channel.
        HolderForceClosed(OutPoint),
 
        /// Indicates a [`ChannelMonitor`] update has completed. See
@@ -236,10 +238,10 @@ pub(crate) const HTLC_FAIL_BACK_BUFFER: u32 = CLTV_CLAIM_BUFFER + LATENCY_GRACE_
 struct HolderSignedTx {
        /// txid of the transaction in tx, just used to make comparison faster
        txid: Txid,
-       revocation_key: PublicKey,
-       a_htlc_key: PublicKey,
-       b_htlc_key: PublicKey,
-       delayed_payment_key: PublicKey,
+       revocation_key: RevocationKey,
+       a_htlc_key: HtlcKey,
+       b_htlc_key: HtlcKey,
+       delayed_payment_key: DelayedPaymentKey,
        per_commitment_point: PublicKey,
        htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Signature>, Option<HTLCSource>)>,
        to_self_value_sat: u64,
@@ -276,8 +278,8 @@ impl HolderSignedTx {
 /// justice or 2nd-stage preimage/timeout transactions.
 #[derive(Clone, PartialEq, Eq)]
 struct CounterpartyCommitmentParameters {
-       counterparty_delayed_payment_base_key: PublicKey,
-       counterparty_htlc_base_key: PublicKey,
+       counterparty_delayed_payment_base_key: DelayedPaymentBasepoint,
+       counterparty_htlc_base_key: HtlcBasepoint,
        on_counterparty_tx_csv: u16,
 }
 
@@ -515,7 +517,7 @@ pub(crate) enum ChannelMonitorUpdateStep {
                should_broadcast: bool,
        },
        ShutdownScript {
-               scriptpubkey: Script,
+               scriptpubkey: ScriptBuf,
        },
 }
 
@@ -749,19 +751,19 @@ pub(crate) struct ChannelMonitorImpl<Signer: WriteableEcdsaChannelSigner> {
        latest_update_id: u64,
        commitment_transaction_number_obscure_factor: u64,
 
-       destination_script: Script,
-       broadcasted_holder_revokable_script: Option<(Script, PublicKey, PublicKey)>,
-       counterparty_payment_script: Script,
-       shutdown_script: Option<Script>,
+       destination_script: ScriptBuf,
+       broadcasted_holder_revokable_script: Option<(ScriptBuf, PublicKey, RevocationKey)>,
+       counterparty_payment_script: ScriptBuf,
+       shutdown_script: Option<ScriptBuf>,
 
        channel_keys_id: [u8; 32],
-       holder_revocation_basepoint: PublicKey,
-       funding_info: (OutPoint, Script),
+       holder_revocation_basepoint: RevocationBasepoint,
+       funding_info: (OutPoint, ScriptBuf),
        current_counterparty_commitment_txid: Option<Txid>,
        prev_counterparty_commitment_txid: Option<Txid>,
 
        counterparty_commitment_params: CounterpartyCommitmentParameters,
-       funding_redeemscript: Script,
+       funding_redeemscript: ScriptBuf,
        channel_value_satoshis: u64,
        // first is the idx of the first of the two per-commitment points
        their_cur_per_commitment_points: Option<(u64, PublicKey, Option<PublicKey>)>,
@@ -830,7 +832,7 @@ pub(crate) struct ChannelMonitorImpl<Signer: WriteableEcdsaChannelSigner> {
        // interface knows about the TXOs that we want to be notified of spends of. We could probably
        // be smart and derive them from the above storage fields, but its much simpler and more
        // Obviously Correct (tm) if we just keep track of them explicitly.
-       outputs_to_watch: HashMap<Txid, Vec<(u32, Script)>>,
+       outputs_to_watch: HashMap<Txid, Vec<(u32, ScriptBuf)>>,
 
        #[cfg(test)]
        pub onchain_tx_handler: OnchainTxHandler<Signer>,
@@ -939,7 +941,7 @@ impl<Signer: WriteableEcdsaChannelSigner> Writeable for ChannelMonitorImpl<Signe
                self.counterparty_payment_script.write(writer)?;
                match &self.shutdown_script {
                        Some(script) => script.write(writer)?,
-                       None => Script::new().write(writer)?,
+                       None => ScriptBuf::new().write(writer)?,
                }
 
                self.channel_keys_id.write(writer)?;
@@ -1123,6 +1125,34 @@ macro_rules! _process_events_body {
 }
 pub(super) use _process_events_body as process_events_body;
 
+pub(crate) struct WithChannelMonitor<'a, L: Deref> where L::Target: Logger {
+       logger: &'a L,
+       peer_id: Option<PublicKey>,
+       channel_id: Option<ChannelId>,
+}
+
+impl<'a, L: Deref> Logger for WithChannelMonitor<'a, L> where L::Target: Logger {
+       fn log(&self, mut record: Record) {
+               record.peer_id = self.peer_id;
+               record.channel_id = self.channel_id;
+               self.logger.log(record)
+       }
+}
+
+impl<'a, L: Deref> WithChannelMonitor<'a, L> where L::Target: Logger {
+       pub(crate) fn from<S: WriteableEcdsaChannelSigner>(logger: &'a L, monitor: &ChannelMonitor<S>) -> Self {
+               Self::from_impl(logger, &*monitor.inner.lock().unwrap())
+       }
+
+       pub(crate) fn from_impl<S: WriteableEcdsaChannelSigner>(logger: &'a L, monitor_impl: &ChannelMonitorImpl<S>) -> Self {
+               let peer_id = monitor_impl.counterparty_node_id;
+               let channel_id = Some(monitor_impl.funding_info.0.to_channel_id());
+               WithChannelMonitor {
+                       logger, peer_id, channel_id,
+               }
+       }
+}
+
 impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        /// For lockorder enforcement purposes, we need to have a single site which constructs the
        /// `inner` mutex, otherwise cases where we lock two monitors at the same time (eg in our
@@ -1131,10 +1161,10 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                ChannelMonitor { inner: Mutex::new(imp) }
        }
 
-       pub(crate) fn new(secp_ctx: Secp256k1<secp256k1::All>, keys: Signer, shutdown_script: Option<Script>,
-                         on_counterparty_tx_csv: u16, destination_script: &Script, funding_info: (OutPoint, Script),
+       pub(crate) fn new(secp_ctx: Secp256k1<secp256k1::All>, keys: Signer, shutdown_script: Option<ScriptBuf>,
+                         on_counterparty_tx_csv: u16, destination_script: &Script, funding_info: (OutPoint, ScriptBuf),
                          channel_parameters: &ChannelTransactionParameters,
-                         funding_redeemscript: Script, channel_value_satoshis: u64,
+                         funding_redeemscript: ScriptBuf, channel_value_satoshis: u64,
                          commitment_transaction_number_obscure_factor: u64,
                          initial_holder_commitment_tx: HolderCommitmentTransaction,
                          best_block: BestBlock, counterparty_node_id: PublicKey) -> ChannelMonitor<Signer> {
@@ -1173,7 +1203,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                };
 
                let onchain_tx_handler = OnchainTxHandler::new(
-                       channel_value_satoshis, channel_keys_id, destination_script.clone(), keys,
+                       channel_value_satoshis, channel_keys_id, destination_script.into(), keys,
                        channel_parameters.clone(), initial_holder_commitment_tx, secp_ctx
                );
 
@@ -1184,7 +1214,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                        latest_update_id: 0,
                        commitment_transaction_number_obscure_factor,
 
-                       destination_script: destination_script.clone(),
+                       destination_script: destination_script.into(),
                        broadcasted_holder_revokable_script: None,
                        counterparty_payment_script,
                        shutdown_script,
@@ -1256,9 +1286,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        )
        where L::Target: Logger
        {
-               self.inner.lock().unwrap().provide_initial_counterparty_commitment_tx(txid,
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.provide_initial_counterparty_commitment_tx(txid,
                        htlc_outputs, commitment_number, their_cur_per_commitment_point, feerate_per_kw,
-                       to_broadcaster_value_sat, to_countersignatory_value_sat, logger);
+                       to_broadcaster_value_sat, to_countersignatory_value_sat, &logger);
        }
 
        /// Informs this monitor of the latest counterparty (ie non-broadcastable) commitment transaction.
@@ -1274,8 +1306,10 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                their_per_commitment_point: PublicKey,
                logger: &L,
        ) where L::Target: Logger {
-               self.inner.lock().unwrap().provide_latest_counterparty_commitment_tx(
-                       txid, htlc_outputs, commitment_number, their_per_commitment_point, logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.provide_latest_counterparty_commitment_tx(
+                       txid, htlc_outputs, commitment_number, their_per_commitment_point, &logger)
        }
 
        #[cfg(test)]
@@ -1300,8 +1334,10 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                F::Target: FeeEstimator,
                L::Target: Logger,
        {
-               self.inner.lock().unwrap().provide_payment_preimage(
-                       payment_hash, payment_preimage, broadcaster, fee_estimator, logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.provide_payment_preimage(
+                       payment_hash, payment_preimage, broadcaster, fee_estimator, &logger)
        }
 
        /// Updates a ChannelMonitor on the basis of some new information provided by the Channel
@@ -1320,7 +1356,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                F::Target: FeeEstimator,
                L::Target: Logger,
        {
-               self.inner.lock().unwrap().update_monitor(updates, broadcaster, fee_estimator, logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.update_monitor(updates, broadcaster, fee_estimator, &logger)
        }
 
        /// Gets the update_id from the latest ChannelMonitorUpdate which was applied to this
@@ -1330,13 +1368,13 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        }
 
        /// Gets the funding transaction outpoint of the channel this ChannelMonitor is monitoring for.
-       pub fn get_funding_txo(&self) -> (OutPoint, Script) {
+       pub fn get_funding_txo(&self) -> (OutPoint, ScriptBuf) {
                self.inner.lock().unwrap().get_funding_txo().clone()
        }
 
        /// Gets a list of txids, with their output scripts (in the order they appear in the
        /// transaction), which we must learn about spends of via block_connected().
-       pub fn get_outputs_to_watch(&self) -> Vec<(Txid, Vec<(u32, Script)>)> {
+       pub fn get_outputs_to_watch(&self) -> Vec<(Txid, Vec<(u32, ScriptBuf)>)> {
                self.inner.lock().unwrap().get_outputs_to_watch()
                        .iter().map(|(txid, outputs)| (*txid, outputs.clone())).collect()
        }
@@ -1457,7 +1495,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        /// to the commitment transaction being revoked, this will return a signed transaction, but
        /// the signature will not be valid.
        ///
-       /// [`EcdsaChannelSigner::sign_justice_revoked_output`]: crate::sign::EcdsaChannelSigner::sign_justice_revoked_output
+       /// [`EcdsaChannelSigner::sign_justice_revoked_output`]: crate::sign::ecdsa::EcdsaChannelSigner::sign_justice_revoked_output
        /// [`Persist`]: crate::chain::chainmonitor::Persist
        pub fn sign_to_local_justice_tx(&self, justice_tx: Transaction, input_idx: usize, value: u64, commitment_number: u64) -> Result<Transaction, ()> {
                self.inner.lock().unwrap().sign_to_local_justice_tx(justice_tx, input_idx, value, commitment_number)
@@ -1499,7 +1537,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        /// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
        pub fn get_latest_holder_commitment_txn<L: Deref>(&self, logger: &L) -> Vec<Transaction>
        where L::Target: Logger {
-               self.inner.lock().unwrap().get_latest_holder_commitment_txn(logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.get_latest_holder_commitment_txn(&logger)
        }
 
        /// Unsafe test-only version of get_latest_holder_commitment_txn used by our test framework
@@ -1508,7 +1548,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        #[cfg(any(test, feature = "unsafe_revoked_tx_signing"))]
        pub fn unsafe_get_latest_holder_commitment_txn<L: Deref>(&self, logger: &L) -> Vec<Transaction>
        where L::Target: Logger {
-               self.inner.lock().unwrap().unsafe_get_latest_holder_commitment_txn(logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.unsafe_get_latest_holder_commitment_txn(&logger)
        }
 
        /// Processes transactions in a newly connected block, which may result in any of the following:
@@ -1524,38 +1566,42 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        /// [`get_outputs_to_watch`]: #method.get_outputs_to_watch
        pub fn block_connected<B: Deref, F: Deref, L: Deref>(
                &self,
-               header: &BlockHeader,
+               header: &Header,
                txdata: &TransactionData,
                height: u32,
                broadcaster: B,
                fee_estimator: F,
-               logger: L,
+               logger: &L,
        ) -> Vec<TransactionOutputs>
        where
                B::Target: BroadcasterInterface,
                F::Target: FeeEstimator,
                L::Target: Logger,
        {
-               self.inner.lock().unwrap().block_connected(
-                       header, txdata, height, broadcaster, fee_estimator, logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.block_connected(
+                       header, txdata, height, broadcaster, fee_estimator, &logger)
        }
 
        /// Determines if the disconnected block contained any transactions of interest and updates
        /// appropriately.
        pub fn block_disconnected<B: Deref, F: Deref, L: Deref>(
                &self,
-               header: &BlockHeader,
+               header: &Header,
                height: u32,
                broadcaster: B,
                fee_estimator: F,
-               logger: L,
+               logger: &L,
        ) where
                B::Target: BroadcasterInterface,
                F::Target: FeeEstimator,
                L::Target: Logger,
        {
-               self.inner.lock().unwrap().block_disconnected(
-                       header, height, broadcaster, fee_estimator, logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.block_disconnected(
+                       header, height, broadcaster, fee_estimator, &logger)
        }
 
        /// Processes transactions confirmed in a block with the given header and height, returning new
@@ -1567,12 +1613,12 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        /// [`block_connected`]: Self::block_connected
        pub fn transactions_confirmed<B: Deref, F: Deref, L: Deref>(
                &self,
-               header: &BlockHeader,
+               header: &Header,
                txdata: &TransactionData,
                height: u32,
                broadcaster: B,
                fee_estimator: F,
-               logger: L,
+               logger: &L,
        ) -> Vec<TransactionOutputs>
        where
                B::Target: BroadcasterInterface,
@@ -1580,8 +1626,10 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                L::Target: Logger,
        {
                let bounded_fee_estimator = LowerBoundedFeeEstimator::new(fee_estimator);
-               self.inner.lock().unwrap().transactions_confirmed(
-                       header, txdata, height, broadcaster, &bounded_fee_estimator, logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.transactions_confirmed(
+                       header, txdata, height, broadcaster, &bounded_fee_estimator, &logger)
        }
 
        /// Processes a transaction that was reorganized out of the chain.
@@ -1595,15 +1643,18 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                txid: &Txid,
                broadcaster: B,
                fee_estimator: F,
-               logger: L,
+               logger: &L,
        ) where
                B::Target: BroadcasterInterface,
                F::Target: FeeEstimator,
                L::Target: Logger,
        {
                let bounded_fee_estimator = LowerBoundedFeeEstimator::new(fee_estimator);
-               self.inner.lock().unwrap().transaction_unconfirmed(
-                       txid, broadcaster, &bounded_fee_estimator, logger);
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.transaction_unconfirmed(
+                       txid, broadcaster, &bounded_fee_estimator, &logger
+               );
        }
 
        /// Updates the monitor with the current best chain tip, returning new outputs to watch. See
@@ -1615,11 +1666,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        /// [`block_connected`]: Self::block_connected
        pub fn best_block_updated<B: Deref, F: Deref, L: Deref>(
                &self,
-               header: &BlockHeader,
+               header: &Header,
                height: u32,
                broadcaster: B,
                fee_estimator: F,
-               logger: L,
+               logger: &L,
        ) -> Vec<TransactionOutputs>
        where
                B::Target: BroadcasterInterface,
@@ -1627,20 +1678,23 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
                L::Target: Logger,
        {
                let bounded_fee_estimator = LowerBoundedFeeEstimator::new(fee_estimator);
-               self.inner.lock().unwrap().best_block_updated(
-                       header, height, broadcaster, &bounded_fee_estimator, logger)
+               let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
+               inner.best_block_updated(
+                       header, height, broadcaster, &bounded_fee_estimator, &logger
+               )
        }
 
        /// Returns the set of txids that should be monitored for re-organization out of the chain.
-       pub fn get_relevant_txids(&self) -> Vec<(Txid, Option<BlockHash>)> {
+       pub fn get_relevant_txids(&self) -> Vec<(Txid, u32, Option<BlockHash>)> {
                let inner = self.inner.lock().unwrap();
-               let mut txids: Vec<(Txid, Option<BlockHash>)> = inner.onchain_events_awaiting_threshold_conf
+               let mut txids: Vec<(Txid, u32, Option<BlockHash>)> = inner.onchain_events_awaiting_threshold_conf
                        .iter()
-                       .map(|entry| (entry.txid, entry.block_hash))
+                       .map(|entry| (entry.txid, entry.height, entry.block_hash))
                        .chain(inner.onchain_tx_handler.get_relevant_txids().into_iter())
                        .collect();
-               txids.sort_unstable();
-               txids.dedup();
+               txids.sort_unstable_by(|a, b| a.0.cmp(&b.0).then(b.1.cmp(&a.1)));
+               txids.dedup_by_key(|(txid, _, _)| *txid);
                txids
        }
 
@@ -1656,7 +1710,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        /// invoking this every 30 seconds, or lower if running in an environment with spotty
        /// connections, like on mobile.
        pub fn rebroadcast_pending_claims<B: Deref, F: Deref, L: Deref>(
-               &self, broadcaster: B, fee_estimator: F, logger: L,
+               &self, broadcaster: B, fee_estimator: F, logger: &L,
        )
        where
                B::Target: BroadcasterInterface,
@@ -1665,6 +1719,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        {
                let fee_estimator = LowerBoundedFeeEstimator::new(fee_estimator);
                let mut inner = self.inner.lock().unwrap();
+               let logger = WithChannelMonitor::from_impl(logger, &*inner);
                let current_height = inner.best_block.height;
                inner.onchain_tx_handler.rebroadcast_pending_claims(
                        current_height, &broadcaster, &fee_estimator, &logger,
@@ -1705,12 +1760,12 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitor<Signer> {
        }
 
        #[cfg(test)]
-       pub fn get_counterparty_payment_script(&self) -> Script{
+       pub fn get_counterparty_payment_script(&self) -> ScriptBuf {
                self.inner.lock().unwrap().counterparty_payment_script.clone()
        }
 
        #[cfg(test)]
-       pub fn set_counterparty_payment_script(&self, script: Script) {
+       pub fn set_counterparty_payment_script(&self, script: ScriptBuf) {
                self.inner.lock().unwrap().counterparty_payment_script = script;
        }
 }
@@ -2373,13 +2428,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                Ok(())
        }
 
-       pub(crate) fn provide_initial_counterparty_commitment_tx<L: Deref>(
+       fn provide_initial_counterparty_commitment_tx<L: Deref>(
                &mut self, txid: Txid, htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Box<HTLCSource>>)>,
                commitment_number: u64, their_per_commitment_point: PublicKey, feerate_per_kw: u32,
-               to_broadcaster_value: u64, to_countersignatory_value: u64, logger: &L
-       )
-       where L::Target: Logger
-       {
+               to_broadcaster_value: u64, to_countersignatory_value: u64, logger: &WithChannelMonitor<L>,
+       ) where L::Target: Logger {
                self.initial_counterparty_commitment_info = Some((their_per_commitment_point.clone(),
                        feerate_per_kw, to_broadcaster_value, to_countersignatory_value));
 
@@ -2392,7 +2445,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                their_per_commitment_point, logger);
        }
 
-       pub(crate) fn provide_latest_counterparty_commitment_tx<L: Deref>(&mut self, txid: Txid, htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Box<HTLCSource>>)>, commitment_number: u64, their_per_commitment_point: PublicKey, logger: &L) where L::Target: Logger {
+       fn provide_latest_counterparty_commitment_tx<L: Deref>(
+               &mut self, txid: Txid,
+               htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Box<HTLCSource>>)>,
+               commitment_number: u64, their_per_commitment_point: PublicKey, logger: &WithChannelMonitor<L>,
+       ) where L::Target: Logger {
                // TODO: Encrypt the htlc_outputs data with the single-hash of the commitment transaction
                // so that a remote monitor doesn't learn anything unless there is a malicious close.
                // (only maybe, sadly we cant do the same for local info, as we need to be aware of
@@ -2525,7 +2582,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
        /// commitment_tx_infos which contain the payment hash have been revoked.
        fn provide_payment_preimage<B: Deref, F: Deref, L: Deref>(
                &mut self, payment_hash: &PaymentHash, payment_preimage: &PaymentPreimage, broadcaster: &B,
-               fee_estimator: &LowerBoundedFeeEstimator<F>, logger: &L)
+               fee_estimator: &LowerBoundedFeeEstimator<F>, logger: &WithChannelMonitor<L>)
        where B::Target: BroadcasterInterface,
                    F::Target: FeeEstimator,
                    L::Target: Logger,
@@ -2602,9 +2659,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                }
        }
 
-       pub(crate) fn broadcast_latest_holder_commitment_txn<B: Deref, L: Deref>(&mut self, broadcaster: &B, logger: &L)
+       fn broadcast_latest_holder_commitment_txn<B: Deref, L: Deref>(&mut self, broadcaster: &B, logger: &WithChannelMonitor<L>)
                where B::Target: BroadcasterInterface,
-                                       L::Target: Logger,
+                       L::Target: Logger,
        {
                let commit_txs = self.get_latest_holder_commitment_txn(logger);
                let mut txs = vec![];
@@ -2616,7 +2673,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                self.pending_monitor_events.push(MonitorEvent::HolderForceClosed(self.funding_info.0));
        }
 
-       pub fn update_monitor<B: Deref, F: Deref, L: Deref>(&mut self, updates: &ChannelMonitorUpdate, broadcaster: &B, fee_estimator: &F, logger: &L) -> Result<(), ()>
+       fn update_monitor<B: Deref, F: Deref, L: Deref>(
+               &mut self, updates: &ChannelMonitorUpdate, broadcaster: &B, fee_estimator: &F, logger: &WithChannelMonitor<L>
+       ) -> Result<(), ()>
        where B::Target: BroadcasterInterface,
                F::Target: FeeEstimator,
                L::Target: Logger,
@@ -2674,7 +2733,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                },
                                ChannelMonitorUpdateStep::PaymentPreimage { payment_preimage } => {
                                        log_trace!(logger, "Updating ChannelMonitor with payment preimage");
-                                       self.provide_payment_preimage(&PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()), &payment_preimage, broadcaster, &bounded_fee_estimator, logger)
+                                       self.provide_payment_preimage(&PaymentHash(Sha256::hash(&payment_preimage.0[..]).to_byte_array()), &payment_preimage, broadcaster, &bounded_fee_estimator, logger)
                                },
                                ChannelMonitorUpdateStep::CommitmentSecret { idx, secret } => {
                                        log_trace!(logger, "Updating ChannelMonitor with commitment secret");
@@ -2761,15 +2820,15 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                } else { ret }
        }
 
-       pub fn get_latest_update_id(&self) -> u64 {
+       fn get_latest_update_id(&self) -> u64 {
                self.latest_update_id
        }
 
-       pub fn get_funding_txo(&self) -> &(OutPoint, Script) {
+       fn get_funding_txo(&self) -> &(OutPoint, ScriptBuf) {
                &self.funding_info
        }
 
-       pub fn get_outputs_to_watch(&self) -> &HashMap<Txid, Vec<(u32, Script)>> {
+       fn get_outputs_to_watch(&self) -> &HashMap<Txid, Vec<(u32, ScriptBuf)>> {
                // If we've detected a counterparty commitment tx on chain, we must include it in the set
                // of outputs to watch for spends of, otherwise we're likely to lose user funds. Because
                // its trivial to do, double-check that here.
@@ -2779,7 +2838,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                &self.outputs_to_watch
        }
 
-       pub fn get_and_clear_pending_monitor_events(&mut self) -> Vec<MonitorEvent> {
+       fn get_and_clear_pending_monitor_events(&mut self) -> Vec<MonitorEvent> {
                let mut ret = Vec::new();
                mem::swap(&mut ret, &mut self.pending_monitor_events);
                ret
@@ -2854,7 +2913,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                ret
        }
 
-       pub(crate) fn initial_counterparty_commitment_tx(&mut self) -> Option<CommitmentTransaction> {
+       fn initial_counterparty_commitment_tx(&mut self) -> Option<CommitmentTransaction> {
                let (their_per_commitment_point, feerate_per_kw, to_broadcaster_value,
                        to_countersignatory_value) = self.initial_counterparty_commitment_info?;
                let htlc_outputs = vec![];
@@ -2888,7 +2947,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                        channel_parameters)
        }
 
-       pub(crate) fn counterparty_commitment_txs_from_update(&self, update: &ChannelMonitorUpdate) -> Vec<CommitmentTransaction> {
+       fn counterparty_commitment_txs_from_update(&self, update: &ChannelMonitorUpdate) -> Vec<CommitmentTransaction> {
                update.updates.iter().filter_map(|update| {
                        match update {
                                &ChannelMonitorUpdateStep::LatestCounterpartyCommitmentTXInfo { commitment_txid,
@@ -2914,7 +2973,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                }).collect()
        }
 
-       pub(crate) fn sign_to_local_justice_tx(
+       fn sign_to_local_justice_tx(
                &self, mut justice_tx: Transaction, input_idx: usize, value: u64, commitment_number: u64
        ) -> Result<Transaction, ()> {
                let secret = self.get_secret(commitment_number).ok_or(())?;
@@ -2922,12 +2981,10 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                let their_per_commitment_point = PublicKey::from_secret_key(
                        &self.onchain_tx_handler.secp_ctx, &per_commitment_key);
 
-               let revocation_pubkey = chan_utils::derive_public_revocation_key(
-                       &self.onchain_tx_handler.secp_ctx, &their_per_commitment_point,
-                       &self.holder_revocation_basepoint);
-               let delayed_key = chan_utils::derive_public_key(&self.onchain_tx_handler.secp_ctx,
-                       &their_per_commitment_point,
-                       &self.counterparty_commitment_params.counterparty_delayed_payment_base_key);
+               let revocation_pubkey = RevocationKey::from_basepoint(&self.onchain_tx_handler.secp_ctx,
+                       &self.holder_revocation_basepoint, &their_per_commitment_point);
+               let delayed_key = DelayedPaymentKey::from_basepoint(&self.onchain_tx_handler.secp_ctx,
+                       &self.counterparty_commitment_params.counterparty_delayed_payment_base_key, &their_per_commitment_point);
                let revokeable_redeemscript = chan_utils::get_revokeable_redeemscript(&revocation_pubkey,
                        self.counterparty_commitment_params.on_counterparty_tx_csv, &delayed_key);
 
@@ -2944,15 +3001,15 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                self.commitment_secrets.get_secret(idx)
        }
 
-       pub(crate) fn get_min_seen_secret(&self) -> u64 {
+       fn get_min_seen_secret(&self) -> u64 {
                self.commitment_secrets.get_min_seen_secret()
        }
 
-       pub(crate) fn get_cur_counterparty_commitment_number(&self) -> u64 {
+       fn get_cur_counterparty_commitment_number(&self) -> u64 {
                self.current_counterparty_commitment_number
        }
 
-       pub(crate) fn get_cur_holder_commitment_number(&self) -> u64 {
+       fn get_cur_holder_commitment_number(&self) -> u64 {
                self.current_holder_commitment_number
        }
 
@@ -2985,13 +3042,13 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                        };
                }
 
-               let commitment_number = 0xffffffffffff - ((((tx.input[0].sequence.0 as u64 & 0xffffff) << 3*8) | (tx.lock_time.0 as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor);
+               let commitment_number = 0xffffffffffff - ((((tx.input[0].sequence.0 as u64 & 0xffffff) << 3*8) | (tx.lock_time.to_consensus_u32() as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor);
                if commitment_number >= self.get_min_seen_secret() {
                        let secret = self.get_secret(commitment_number).unwrap();
                        let per_commitment_key = ignore_error!(SecretKey::from_slice(&secret));
                        let per_commitment_point = PublicKey::from_secret_key(&self.onchain_tx_handler.secp_ctx, &per_commitment_key);
-                       let revocation_pubkey = chan_utils::derive_public_revocation_key(&self.onchain_tx_handler.secp_ctx, &per_commitment_point, &self.holder_revocation_basepoint);
-                       let delayed_key = chan_utils::derive_public_key(&self.onchain_tx_handler.secp_ctx, &PublicKey::from_secret_key(&self.onchain_tx_handler.secp_ctx, &per_commitment_key), &self.counterparty_commitment_params.counterparty_delayed_payment_base_key);
+                       let revocation_pubkey = RevocationKey::from_basepoint(&self.onchain_tx_handler.secp_ctx,  &self.holder_revocation_basepoint, &per_commitment_point,);
+                       let delayed_key = DelayedPaymentKey::from_basepoint(&self.onchain_tx_handler.secp_ctx, &self.counterparty_commitment_params.counterparty_delayed_payment_base_key, &PublicKey::from_secret_key(&self.onchain_tx_handler.secp_ctx, &per_commitment_key));
 
                        let revokeable_redeemscript = chan_utils::get_revokeable_redeemscript(&revocation_pubkey, self.counterparty_commitment_params.on_counterparty_tx_csv, &delayed_key);
                        let revokeable_p2wsh = revokeable_redeemscript.to_v0_p2wsh();
@@ -3103,11 +3160,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                        } else { return (claimable_outpoints, to_counterparty_output_info); };
 
                if let Some(transaction) = tx {
-                       let revocation_pubkey = chan_utils::derive_public_revocation_key(
-                               &self.onchain_tx_handler.secp_ctx, &per_commitment_point, &self.holder_revocation_basepoint);
-                       let delayed_key = chan_utils::derive_public_key(&self.onchain_tx_handler.secp_ctx,
-                               &per_commitment_point,
-                               &self.counterparty_commitment_params.counterparty_delayed_payment_base_key);
+                       let revocation_pubkey = RevocationKey::from_basepoint(
+                               &self.onchain_tx_handler.secp_ctx,  &self.holder_revocation_basepoint, &per_commitment_point);
+
+                       let delayed_key = DelayedPaymentKey::from_basepoint(&self.onchain_tx_handler.secp_ctx, &self.counterparty_commitment_params.counterparty_delayed_payment_base_key, &per_commitment_point);
+
                        let revokeable_p2wsh = chan_utils::get_revokeable_redeemscript(&revocation_pubkey,
                                self.counterparty_commitment_params.on_counterparty_tx_csv,
                                &delayed_key).to_v0_p2wsh();
@@ -3202,7 +3259,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
        // Returns (1) `PackageTemplate`s that can be given to the OnchainTxHandler, so that the handler can
        // broadcast transactions claiming holder HTLC commitment outputs and (2) a holder revokable
        // script so we can detect whether a holder transaction has been seen on-chain.
-       fn get_broadcasted_holder_claims(&self, holder_tx: &HolderSignedTx, conf_height: u32) -> (Vec<PackageTemplate>, Option<(Script, PublicKey, PublicKey)>) {
+       fn get_broadcasted_holder_claims(&self, holder_tx: &HolderSignedTx, conf_height: u32) -> (Vec<PackageTemplate>, Option<(ScriptBuf, PublicKey, RevocationKey)>) {
                let mut claim_requests = Vec::with_capacity(holder_tx.htlc_outputs.len());
 
                let redeemscript = chan_utils::get_revokeable_redeemscript(&holder_tx.revocation_key, self.on_holder_tx_csv, &holder_tx.delayed_payment_key);
@@ -3299,7 +3356,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                }
        }
 
-       pub fn get_latest_holder_commitment_txn<L: Deref>(&mut self, logger: &L) -> Vec<Transaction> where L::Target: Logger {
+       fn get_latest_holder_commitment_txn<L: Deref>(
+               &mut self, logger: &WithChannelMonitor<L>,
+       ) -> Vec<Transaction> where L::Target: Logger {
                log_debug!(logger, "Getting signed latest holder commitment transaction!");
                self.holder_tx_signed = true;
                let commitment_tx = self.onchain_tx_handler.get_fully_signed_holder_tx(&self.funding_redeemscript);
@@ -3338,7 +3397,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
 
        #[cfg(any(test,feature = "unsafe_revoked_tx_signing"))]
        /// Note that this includes possibly-locktimed-in-the-future transactions!
-       fn unsafe_get_latest_holder_commitment_txn<L: Deref>(&mut self, logger: &L) -> Vec<Transaction> where L::Target: Logger {
+       fn unsafe_get_latest_holder_commitment_txn<L: Deref>(
+               &mut self, logger: &WithChannelMonitor<L>
+       ) -> Vec<Transaction> where L::Target: Logger {
                log_debug!(logger, "Getting signed copy of latest holder commitment transaction!");
                let commitment_tx = self.onchain_tx_handler.get_fully_signed_copy_holder_tx(&self.funding_redeemscript);
                let txid = commitment_tx.txid();
@@ -3365,10 +3426,13 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                holder_transactions
        }
 
-       pub fn block_connected<B: Deref, F: Deref, L: Deref>(&mut self, header: &BlockHeader, txdata: &TransactionData, height: u32, broadcaster: B, fee_estimator: F, logger: L) -> Vec<TransactionOutputs>
+       fn block_connected<B: Deref, F: Deref, L: Deref>(
+               &mut self, header: &Header, txdata: &TransactionData, height: u32, broadcaster: B,
+               fee_estimator: F, logger: &WithChannelMonitor<L>,
+       ) -> Vec<TransactionOutputs>
                where B::Target: BroadcasterInterface,
-                     F::Target: FeeEstimator,
-                                       L::Target: Logger,
+                       F::Target: FeeEstimator,
+                       L::Target: Logger,
        {
                let block_hash = header.block_hash();
                self.best_block = BestBlock::new(block_hash, height);
@@ -3379,11 +3443,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
 
        fn best_block_updated<B: Deref, F: Deref, L: Deref>(
                &mut self,
-               header: &BlockHeader,
+               header: &Header,
                height: u32,
                broadcaster: B,
                fee_estimator: &LowerBoundedFeeEstimator<F>,
-               logger: L,
+               logger: &WithChannelMonitor<L>,
        ) -> Vec<TransactionOutputs>
        where
                B::Target: BroadcasterInterface,
@@ -3394,7 +3458,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
 
                if height > self.best_block.height() {
                        self.best_block = BestBlock::new(block_hash, height);
-                       self.block_confirmed(height, block_hash, vec![], vec![], vec![], &broadcaster, &fee_estimator, &logger)
+                       self.block_confirmed(height, block_hash, vec![], vec![], vec![], &broadcaster, &fee_estimator, logger)
                } else if block_hash != self.best_block.block_hash() {
                        self.best_block = BestBlock::new(block_hash, height);
                        self.onchain_events_awaiting_threshold_conf.retain(|ref entry| entry.height <= height);
@@ -3405,12 +3469,12 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
 
        fn transactions_confirmed<B: Deref, F: Deref, L: Deref>(
                &mut self,
-               header: &BlockHeader,
+               header: &Header,
                txdata: &TransactionData,
                height: u32,
                broadcaster: B,
                fee_estimator: &LowerBoundedFeeEstimator<F>,
-               logger: L,
+               logger: &WithChannelMonitor<L>,
        ) -> Vec<TransactionOutputs>
        where
                B::Target: BroadcasterInterface,
@@ -3474,7 +3538,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                                &self.funding_info.0.to_channel_id(), txid);
                                        self.funding_spend_seen = true;
                                        let mut commitment_tx_to_counterparty_output = None;
-                                       if (tx.input[0].sequence.0 >> 8*3) as u8 == 0x80 && (tx.lock_time.0 >> 8*3) as u8 == 0x20 {
+                                       if (tx.input[0].sequence.0 >> 8*3) as u8 == 0x80 && (tx.lock_time.to_consensus_u32() >> 8*3) as u8 == 0x20 {
                                                let (mut new_outpoints, new_outputs, counterparty_output_idx_sats) =
                                                        self.check_spend_counterparty_transaction(&tx, height, &block_hash, &logger);
                                                commitment_tx_to_counterparty_output = counterparty_output_idx_sats;
@@ -3527,9 +3591,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                                break;
                                        }
                                }
-                               self.is_resolving_htlc_output(&tx, height, &block_hash, &logger);
+                               self.is_resolving_htlc_output(&tx, height, &block_hash, logger);
 
-                               self.check_tx_and_push_spendable_outputs(&tx, height, &block_hash, &logger);
+                               self.check_tx_and_push_spendable_outputs(&tx, height, &block_hash, logger);
                        }
                }
 
@@ -3537,7 +3601,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                        self.best_block = BestBlock::new(block_hash, height);
                }
 
-               self.block_confirmed(height, block_hash, txn_matched, watch_outputs, claimable_outpoints, &broadcaster, &fee_estimator, &logger)
+               self.block_confirmed(height, block_hash, txn_matched, watch_outputs, claimable_outpoints, &broadcaster, &fee_estimator, logger)
        }
 
        /// Update state for new block(s)/transaction(s) confirmed. Note that the caller must update
@@ -3557,7 +3621,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                mut claimable_outpoints: Vec<PackageTemplate>,
                broadcaster: &B,
                fee_estimator: &LowerBoundedFeeEstimator<F>,
-               logger: &L,
+               logger: &WithChannelMonitor<L>,
        ) -> Vec<TransactionOutputs>
        where
                B::Target: BroadcasterInterface,
@@ -3702,10 +3766,11 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                watch_outputs
        }
 
-       pub fn block_disconnected<B: Deref, F: Deref, L: Deref>(&mut self, header: &BlockHeader, height: u32, broadcaster: B, fee_estimator: F, logger: L)
-               where B::Target: BroadcasterInterface,
-                     F::Target: FeeEstimator,
-                     L::Target: Logger,
+       fn block_disconnected<B: Deref, F: Deref, L: Deref>(
+               &mut self, header: &Header, height: u32, broadcaster: B, fee_estimator: F, logger: &WithChannelMonitor<L>
+       ) where B::Target: BroadcasterInterface,
+               F::Target: FeeEstimator,
+               L::Target: Logger,
        {
                log_trace!(logger, "Block {} at height {} disconnected", header.block_hash(), height);
 
@@ -3725,7 +3790,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                txid: &Txid,
                broadcaster: B,
                fee_estimator: &LowerBoundedFeeEstimator<F>,
-               logger: L,
+               logger: &WithChannelMonitor<L>,
        ) where
                B::Target: BroadcasterInterface,
                F::Target: FeeEstimator,
@@ -3790,7 +3855,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                                                        return true;
                                                                }
 
-                                                               assert_eq!(&bitcoin::Address::p2wsh(&Script::from(input.witness.last().unwrap().to_vec()), bitcoin::Network::Bitcoin).script_pubkey(), _script_pubkey);
+                                                               assert_eq!(&bitcoin::Address::p2wsh(&ScriptBuf::from(input.witness.last().unwrap().to_vec()), bitcoin::Network::Bitcoin).script_pubkey(), _script_pubkey);
                                                        } else if _script_pubkey.is_v0_p2wpkh() {
                                                                assert_eq!(&bitcoin::Address::p2wpkh(&bitcoin::PublicKey::from_slice(&input.witness.last().unwrap()).unwrap(), bitcoin::Network::Bitcoin).unwrap().script_pubkey(), _script_pubkey);
                                                        } else { panic!(); }
@@ -3804,7 +3869,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                false
        }
 
-       fn should_broadcast_holder_commitment_txn<L: Deref>(&self, logger: &L) -> bool where L::Target: Logger {
+       fn should_broadcast_holder_commitment_txn<L: Deref>(
+               &self, logger: &WithChannelMonitor<L>
+       ) -> bool where L::Target: Logger {
                // There's no need to broadcast our commitment transaction if we've seen one confirmed (even
                // with 1 confirmation) as it'll be rejected as duplicate/conflicting.
                if self.funding_spend_confirmed.is_some() ||
@@ -3880,7 +3947,9 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
 
        /// Check if any transaction broadcasted is resolving HTLC output by a success or timeout on a holder
        /// or counterparty commitment tx, if so send back the source, preimage if found and payment_hash of resolved HTLC
-       fn is_resolving_htlc_output<L: Deref>(&mut self, tx: &Transaction, height: u32, block_hash: &BlockHash, logger: &L) where L::Target: Logger {
+       fn is_resolving_htlc_output<L: Deref>(
+               &mut self, tx: &Transaction, height: u32, block_hash: &BlockHash, logger: &WithChannelMonitor<L>,
+       ) where L::Target: Logger {
                'outer_loop: for input in &tx.input {
                        let mut payment_data = None;
                        let htlc_claim = HTLCClaim::from_witness(&input.witness);
@@ -4082,6 +4151,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                spendable_outputs.push(SpendableOutputDescriptor::StaticOutput {
                                        outpoint: OutPoint { txid: tx.txid(), index: i as u16 },
                                        output: outp.clone(),
+                                       channel_keys_id: Some(self.channel_keys_id),
                                });
                        }
                        if let Some(ref broadcasted_holder_revokable_script) = self.broadcasted_holder_revokable_script {
@@ -4091,7 +4161,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                                per_commitment_point: broadcasted_holder_revokable_script.1,
                                                to_self_delay: self.on_holder_tx_csv,
                                                output: outp.clone(),
-                                               revocation_pubkey: broadcasted_holder_revokable_script.2.clone(),
+                                               revocation_pubkey: broadcasted_holder_revokable_script.2,
                                                channel_keys_id: self.channel_keys_id,
                                                channel_value_satoshis: self.channel_value_satoshis,
                                        }));
@@ -4110,6 +4180,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                spendable_outputs.push(SpendableOutputDescriptor::StaticOutput {
                                        outpoint: OutPoint { txid: tx.txid(), index: i as u16 },
                                        output: outp.clone(),
+                                       channel_keys_id: Some(self.channel_keys_id),
                                });
                        }
                }
@@ -4119,7 +4190,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
        /// Checks if the confirmed transaction is paying funds back to some address we can assume to
        /// own.
        fn check_tx_and_push_spendable_outputs<L: Deref>(
-               &mut self, tx: &Transaction, height: u32, block_hash: &BlockHash, logger: &L,
+               &mut self, tx: &Transaction, height: u32, block_hash: &BlockHash, logger: &WithChannelMonitor<L>,
        ) where L::Target: Logger {
                for spendable_output in self.get_spendable_outputs(tx) {
                        let entry = OnchainEventEntry {
@@ -4141,12 +4212,12 @@ where
        F::Target: FeeEstimator,
        L::Target: Logger,
 {
-       fn filtered_block_connected(&self, header: &BlockHeader, txdata: &TransactionData, height: u32) {
-               self.0.block_connected(header, txdata, height, &*self.1, &*self.2, &*self.3);
+       fn filtered_block_connected(&self, header: &Header, txdata: &TransactionData, height: u32) {
+               self.0.block_connected(header, txdata, height, &*self.1, &*self.2, &self.3);
        }
 
-       fn block_disconnected(&self, header: &BlockHeader, height: u32) {
-               self.0.block_disconnected(header, height, &*self.1, &*self.2, &*self.3);
+       fn block_disconnected(&self, header: &Header, height: u32) {
+               self.0.block_disconnected(header, height, &*self.1, &*self.2, &self.3);
        }
 }
 
@@ -4157,19 +4228,19 @@ where
        F::Target: FeeEstimator,
        L::Target: Logger,
 {
-       fn transactions_confirmed(&self, header: &BlockHeader, txdata: &TransactionData, height: u32) {
-               self.0.transactions_confirmed(header, txdata, height, &*self.1, &*self.2, &*self.3);
+       fn transactions_confirmed(&self, header: &Header, txdata: &TransactionData, height: u32) {
+               self.0.transactions_confirmed(header, txdata, height, &*self.1, &*self.2, &self.3);
        }
 
        fn transaction_unconfirmed(&self, txid: &Txid) {
-               self.0.transaction_unconfirmed(txid, &*self.1, &*self.2, &*self.3);
+               self.0.transaction_unconfirmed(txid, &*self.1, &*self.2, &self.3);
        }
 
-       fn best_block_updated(&self, header: &BlockHeader, height: u32) {
-               self.0.best_block_updated(header, height, &*self.1, &*self.2, &*self.3);
+       fn best_block_updated(&self, header: &Header, height: u32) {
+               self.0.best_block_updated(header, height, &*self.1, &*self.2, &self.3);
        }
 
-       fn get_relevant_txids(&self) -> Vec<(Txid, Option<BlockHash>)> {
+       fn get_relevant_txids(&self) -> Vec<(Txid, u32, Option<BlockHash>)> {
                self.0.get_relevant_txids()
        }
 }
@@ -4177,7 +4248,7 @@ where
 const MAX_ALLOC_SIZE: usize = 64*1024;
 
 impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP)>
-               for (BlockHash, ChannelMonitor<SP::Signer>) {
+               for (BlockHash, ChannelMonitor<SP::EcdsaSigner>) {
        fn read<R: io::Read>(reader: &mut R, args: (&'a ES, &'b SP)) -> Result<Self, DecodeError> {
                macro_rules! unwrap_obj {
                        ($key: expr) => {
@@ -4206,9 +4277,9 @@ impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP
                        1 => { None },
                        _ => return Err(DecodeError::InvalidValue),
                };
-               let mut counterparty_payment_script: Script = Readable::read(reader)?;
+               let mut counterparty_payment_script: ScriptBuf = Readable::read(reader)?;
                let shutdown_script = {
-                       let script = <Script as Readable>::read(reader)?;
+                       let script = <ScriptBuf as Readable>::read(reader)?;
                        if script.is_empty() { None } else { Some(script) }
                };
 
@@ -4314,7 +4385,7 @@ impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP
                let mut payment_preimages = HashMap::with_capacity(cmp::min(payment_preimages_len as usize, MAX_ALLOC_SIZE / 32));
                for _ in 0..payment_preimages_len {
                        let preimage: PaymentPreimage = Readable::read(reader)?;
-                       let hash = PaymentHash(Sha256::hash(&preimage.0[..]).into_inner());
+                       let hash = PaymentHash(Sha256::hash(&preimage.0[..]).to_byte_array());
                        if let Some(_) = payment_preimages.insert(hash, preimage) {
                                return Err(DecodeError::InvalidValue);
                        }
@@ -4351,11 +4422,11 @@ impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP
                }
 
                let outputs_to_watch_len: u64 = Readable::read(reader)?;
-               let mut outputs_to_watch = HashMap::with_capacity(cmp::min(outputs_to_watch_len as usize, MAX_ALLOC_SIZE / (mem::size_of::<Txid>() + mem::size_of::<u32>() + mem::size_of::<Vec<Script>>())));
+               let mut outputs_to_watch = HashMap::with_capacity(cmp::min(outputs_to_watch_len as usize, MAX_ALLOC_SIZE / (mem::size_of::<Txid>() + mem::size_of::<u32>() + mem::size_of::<Vec<ScriptBuf>>())));
                for _ in 0..outputs_to_watch_len {
                        let txid = Readable::read(reader)?;
                        let outputs_len: u64 = Readable::read(reader)?;
-                       let mut outputs = Vec::with_capacity(cmp::min(outputs_len as usize, MAX_ALLOC_SIZE / (mem::size_of::<u32>() + mem::size_of::<Script>())));
+                       let mut outputs = Vec::with_capacity(cmp::min(outputs_len as usize, MAX_ALLOC_SIZE / (mem::size_of::<u32>() + mem::size_of::<ScriptBuf>())));
                        for _ in 0..outputs_len {
                                outputs.push((Readable::read(reader)?, Readable::read(reader)?));
                        }
@@ -4363,7 +4434,7 @@ impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP
                                return Err(DecodeError::InvalidValue);
                        }
                }
-               let onchain_tx_handler: OnchainTxHandler<SP::Signer> = ReadableArgs::read(
+               let onchain_tx_handler: OnchainTxHandler<SP::EcdsaSigner> = ReadableArgs::read(
                        reader, (entropy_source, signer_provider, channel_value_satoshis, channel_keys_id)
                )?;
 
@@ -4478,11 +4549,13 @@ impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP
 
 #[cfg(test)]
 mod tests {
-       use bitcoin::blockdata::script::{Script, Builder};
+       use bitcoin::blockdata::locktime::absolute::LockTime;
+       use bitcoin::blockdata::script::{ScriptBuf, Builder};
        use bitcoin::blockdata::opcodes;
-       use bitcoin::blockdata::transaction::{Transaction, TxIn, TxOut, EcdsaSighashType};
+       use bitcoin::blockdata::transaction::{Transaction, TxIn, TxOut};
        use bitcoin::blockdata::transaction::OutPoint as BitcoinOutPoint;
-       use bitcoin::util::sighash;
+       use bitcoin::sighash;
+       use bitcoin::sighash::EcdsaSighashType;
        use bitcoin::hashes::Hash;
        use bitcoin::hashes::sha256::Hash as Sha256;
        use bitcoin::hashes::hex::FromHex;
@@ -4490,33 +4563,34 @@ mod tests {
        use bitcoin::network::constants::Network;
        use bitcoin::secp256k1::{SecretKey,PublicKey};
        use bitcoin::secp256k1::Secp256k1;
-
-       use hex;
+       use bitcoin::{Sequence, Witness};
 
        use crate::chain::chaininterface::LowerBoundedFeeEstimator;
 
        use super::ChannelMonitorUpdateStep;
        use crate::{check_added_monitors, check_spends, get_local_commitment_txn, get_monitor, get_route_and_payment_hash, unwrap_send_err};
        use crate::chain::{BestBlock, Confirm};
-       use crate::chain::channelmonitor::ChannelMonitor;
+       use crate::chain::channelmonitor::{ChannelMonitor, WithChannelMonitor};
        use crate::chain::package::{weight_offered_htlc, weight_received_htlc, weight_revoked_offered_htlc, weight_revoked_received_htlc, WEIGHT_REVOKED_OUTPUT};
        use crate::chain::transaction::OutPoint;
        use crate::sign::InMemorySigner;
        use crate::ln::{PaymentPreimage, PaymentHash};
-       use crate::ln::chan_utils;
-       use crate::ln::chan_utils::{HTLCOutputInCommitment, ChannelPublicKeys, ChannelTransactionParameters, HolderCommitmentTransaction, CounterpartyChannelTransactionParameters};
+       use crate::ln::channel_keys::{DelayedPaymentBasepoint, DelayedPaymentKey, HtlcBasepoint, RevocationBasepoint, RevocationKey};
+       use crate::ln::chan_utils::{self,HTLCOutputInCommitment, ChannelPublicKeys, ChannelTransactionParameters, HolderCommitmentTransaction, CounterpartyChannelTransactionParameters};
        use crate::ln::channelmanager::{PaymentSendFailure, PaymentId, RecipientOnionFields};
        use crate::ln::functional_test_utils::*;
        use crate::ln::script::ShutdownScript;
        use crate::util::errors::APIError;
        use crate::util::test_utils::{TestLogger, TestBroadcaster, TestFeeEstimator};
        use crate::util::ser::{ReadableArgs, Writeable};
+       use crate::util::logger::Logger;
        use crate::sync::{Arc, Mutex};
        use crate::io;
-       use bitcoin::{PackedLockTime, Sequence, Witness};
        use crate::ln::features::ChannelTypeFeatures;
        use crate::prelude::*;
 
+       use std::str::FromStr;
+
        fn do_test_funding_spend_refuses_updates(use_local_txn: bool) {
                // Previously, monitor updates were allowed freely even after a funding-spend transaction
                // confirmed. This would allow a race condition where we could receive a payment (including
@@ -4616,7 +4690,7 @@ mod tests {
                {
                        for i in 0..20 {
                                let preimage = PaymentPreimage([i; 32]);
-                               let hash = PaymentHash(Sha256::hash(&preimage.0[..]).into_inner());
+                               let hash = PaymentHash(Sha256::hash(&preimage.0[..]).to_byte_array());
                                preimages.push((preimage, hash));
                        }
                }
@@ -4670,10 +4744,10 @@ mod tests {
 
                let counterparty_pubkeys = ChannelPublicKeys {
                        funding_pubkey: PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[44; 32]).unwrap()),
-                       revocation_basepoint: PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()),
+                       revocation_basepoint: RevocationBasepoint::from(PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap())),
                        payment_point: PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[46; 32]).unwrap()),
-                       delayed_payment_basepoint: PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[47; 32]).unwrap()),
-                       htlc_basepoint: PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[48; 32]).unwrap())
+                       delayed_payment_basepoint: DelayedPaymentBasepoint::from(PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[47; 32]).unwrap())),
+                       htlc_basepoint: HtlcBasepoint::from(PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[48; 32]).unwrap()))
                };
                let funding_outpoint = OutPoint { txid: Txid::all_zeros(), index: u16::max_value() };
                let channel_parameters = ChannelTransactionParameters {
@@ -4692,18 +4766,19 @@ mod tests {
                let shutdown_pubkey = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let best_block = BestBlock::from_network(Network::Testnet);
                let monitor = ChannelMonitor::new(Secp256k1::new(), keys,
-                       Some(ShutdownScript::new_p2wpkh_from_pubkey(shutdown_pubkey).into_inner()), 0, &Script::new(),
-                       (OutPoint { txid: Txid::from_slice(&[43; 32]).unwrap(), index: 0 }, Script::new()),
-                       &channel_parameters, Script::new(), 46, 0, HolderCommitmentTransaction::dummy(&mut Vec::new()),
+                       Some(ShutdownScript::new_p2wpkh_from_pubkey(shutdown_pubkey).into_inner()), 0, &ScriptBuf::new(),
+                       (OutPoint { txid: Txid::from_slice(&[43; 32]).unwrap(), index: 0 }, ScriptBuf::new()),
+                       &channel_parameters, ScriptBuf::new(), 46, 0, HolderCommitmentTransaction::dummy(&mut Vec::new()),
                        best_block, dummy_key);
 
                let mut htlcs = preimages_slice_to_htlcs!(preimages[0..10]);
                let dummy_commitment_tx = HolderCommitmentTransaction::dummy(&mut htlcs);
+
                monitor.provide_latest_holder_commitment_tx(dummy_commitment_tx.clone(),
                        htlcs.into_iter().map(|(htlc, _)| (htlc, Some(dummy_sig), None)).collect()).unwrap();
-               monitor.provide_latest_counterparty_commitment_tx(Txid::from_inner(Sha256::hash(b"1").into_inner()),
+               monitor.provide_latest_counterparty_commitment_tx(Txid::from_byte_array(Sha256::hash(b"1").to_byte_array()),
                        preimages_slice_to_htlc_outputs!(preimages[5..15]), 281474976710655, dummy_key, &logger);
-               monitor.provide_latest_counterparty_commitment_tx(Txid::from_inner(Sha256::hash(b"2").into_inner()),
+               monitor.provide_latest_counterparty_commitment_tx(Txid::from_byte_array(Sha256::hash(b"2").to_byte_array()),
                        preimages_slice_to_htlc_outputs!(preimages[15..20]), 281474976710654, dummy_key, &logger);
                for &(ref preimage, ref hash) in preimages.iter() {
                        let bounded_fee_estimator = LowerBoundedFeeEstimator::new(&fee_estimator);
@@ -4712,23 +4787,23 @@ mod tests {
 
                // Now provide a secret, pruning preimages 10-15
                let mut secret = [0; 32];
-               secret[0..32].clone_from_slice(&hex::decode("7cc854b54e3e0dcdb010d7a3fee464a9687be6e8db3be6854c475621e007a5dc").unwrap());
+               secret[0..32].clone_from_slice(&<Vec<u8>>::from_hex("7cc854b54e3e0dcdb010d7a3fee464a9687be6e8db3be6854c475621e007a5dc").unwrap());
                monitor.provide_secret(281474976710655, secret.clone()).unwrap();
                assert_eq!(monitor.inner.lock().unwrap().payment_preimages.len(), 15);
                test_preimages_exist!(&preimages[0..10], monitor);
                test_preimages_exist!(&preimages[15..20], monitor);
 
-               monitor.provide_latest_counterparty_commitment_tx(Txid::from_inner(Sha256::hash(b"3").into_inner()),
+               monitor.provide_latest_counterparty_commitment_tx(Txid::from_byte_array(Sha256::hash(b"3").to_byte_array()),
                        preimages_slice_to_htlc_outputs!(preimages[17..20]), 281474976710653, dummy_key, &logger);
 
                // Now provide a further secret, pruning preimages 15-17
-               secret[0..32].clone_from_slice(&hex::decode("c7518c8ae4660ed02894df8976fa1a3659c1a8b4b5bec0c4b872abeba4cb8964").unwrap());
+               secret[0..32].clone_from_slice(&<Vec<u8>>::from_hex("c7518c8ae4660ed02894df8976fa1a3659c1a8b4b5bec0c4b872abeba4cb8964").unwrap());
                monitor.provide_secret(281474976710654, secret.clone()).unwrap();
                assert_eq!(monitor.inner.lock().unwrap().payment_preimages.len(), 13);
                test_preimages_exist!(&preimages[0..10], monitor);
                test_preimages_exist!(&preimages[17..20], monitor);
 
-               monitor.provide_latest_counterparty_commitment_tx(Txid::from_inner(Sha256::hash(b"4").into_inner()),
+               monitor.provide_latest_counterparty_commitment_tx(Txid::from_byte_array(Sha256::hash(b"4").to_byte_array()),
                        preimages_slice_to_htlc_outputs!(preimages[18..20]), 281474976710652, dummy_key, &logger);
 
                // Now update holder commitment tx info, pruning only element 18 as we still care about the
@@ -4737,7 +4812,7 @@ mod tests {
                let dummy_commitment_tx = HolderCommitmentTransaction::dummy(&mut htlcs);
                monitor.provide_latest_holder_commitment_tx(dummy_commitment_tx.clone(),
                        htlcs.into_iter().map(|(htlc, _)| (htlc, Some(dummy_sig), None)).collect()).unwrap();
-               secret[0..32].clone_from_slice(&hex::decode("2273e227a5b7449b6e70f1fb4652864038b1cbf9cd7c043a7d6456b7fc275ad8").unwrap());
+               secret[0..32].clone_from_slice(&<Vec<u8>>::from_hex("2273e227a5b7449b6e70f1fb4652864038b1cbf9cd7c043a7d6456b7fc275ad8").unwrap());
                monitor.provide_secret(281474976710653, secret.clone()).unwrap();
                assert_eq!(monitor.inner.lock().unwrap().payment_preimages.len(), 12);
                test_preimages_exist!(&preimages[0..10], monitor);
@@ -4748,7 +4823,7 @@ mod tests {
                let dummy_commitment_tx = HolderCommitmentTransaction::dummy(&mut htlcs);
                monitor.provide_latest_holder_commitment_tx(dummy_commitment_tx,
                        htlcs.into_iter().map(|(htlc, _)| (htlc, Some(dummy_sig), None)).collect()).unwrap();
-               secret[0..32].clone_from_slice(&hex::decode("27cddaa5624534cb6cb9d7da077cf2b22ab21e9b506fd4998a51d54502e99116").unwrap());
+               secret[0..32].clone_from_slice(&<Vec<u8>>::from_hex("27cddaa5624534cb6cb9d7da077cf2b22ab21e9b506fd4998a51d54502e99116").unwrap());
                monitor.provide_secret(281474976710652, secret.clone()).unwrap();
                assert_eq!(monitor.inner.lock().unwrap().payment_preimages.len(), 5);
                test_preimages_exist!(&preimages[0..5], monitor);
@@ -4760,9 +4835,10 @@ mod tests {
                // not actual case to avoid sigs and time-lock delays hell variances.
 
                let secp_ctx = Secp256k1::new();
-               let privkey = SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap();
+               let privkey = SecretKey::from_slice(&<Vec<u8>>::from_hex("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap();
                let pubkey = PublicKey::from_secret_key(&secp_ctx, &privkey);
 
+               use crate::ln::channel_keys::{HtlcKey, HtlcBasepoint};
                macro_rules! sign_input {
                        ($sighash_parts: expr, $idx: expr, $amount: expr, $weight: expr, $sum_actual_sigs: expr, $opt_anchors: expr) => {
                                let htlc = HTLCOutputInCommitment {
@@ -4772,12 +4848,12 @@ mod tests {
                                        payment_hash: PaymentHash([1; 32]),
                                        transaction_output_index: Some($idx as u32),
                                };
-                               let redeem_script = if *$weight == WEIGHT_REVOKED_OUTPUT { chan_utils::get_revokeable_redeemscript(&pubkey, 256, &pubkey) } else { chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, $opt_anchors, &pubkey, &pubkey, &pubkey) };
+                               let redeem_script = if *$weight == WEIGHT_REVOKED_OUTPUT { chan_utils::get_revokeable_redeemscript(&RevocationKey::from_basepoint(&secp_ctx, &RevocationBasepoint::from(pubkey), &pubkey), 256, &DelayedPaymentKey::from_basepoint(&secp_ctx, &DelayedPaymentBasepoint::from(pubkey), &pubkey)) } else { chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, $opt_anchors, &HtlcKey::from_basepoint(&secp_ctx, &HtlcBasepoint::from(pubkey), &pubkey), &HtlcKey::from_basepoint(&secp_ctx, &HtlcBasepoint::from(pubkey), &pubkey), &RevocationKey::from_basepoint(&secp_ctx, &RevocationBasepoint::from(pubkey), &pubkey)) };
                                let sighash = hash_to_message!(&$sighash_parts.segwit_signature_hash($idx, &redeem_script, $amount, EcdsaSighashType::All).unwrap()[..]);
                                let sig = secp_ctx.sign_ecdsa(&sighash, &privkey);
                                let mut ser_sig = sig.serialize_der().to_vec();
                                ser_sig.push(EcdsaSighashType::All as u8);
-                               $sum_actual_sigs += ser_sig.len();
+                               $sum_actual_sigs += ser_sig.len() as u64;
                                let witness = $sighash_parts.witness_mut($idx).unwrap();
                                witness.push(ser_sig);
                                if *$weight == WEIGHT_REVOKED_OUTPUT {
@@ -4798,11 +4874,11 @@ mod tests {
                }
 
                let script_pubkey = Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script();
-               let txid = Txid::from_hex("56944c5d3f98413ef45cf54545538103cc9f298e0575820ad3591376e2e0f65d").unwrap();
+               let txid = Txid::from_str("56944c5d3f98413ef45cf54545538103cc9f298e0575820ad3591376e2e0f65d").unwrap();
 
                // Justice tx with 1 to_holder, 2 revoked offered HTLCs, 1 revoked received HTLCs
                for channel_type_features in [ChannelTypeFeatures::only_static_remote_key(), ChannelTypeFeatures::anchors_zero_htlc_fee_and_dependencies()].iter() {
-                       let mut claim_tx = Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() };
+                       let mut claim_tx = Transaction { version: 0, lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() };
                        let mut sum_actual_sigs = 0;
                        for i in 0..4 {
                                claim_tx.input.push(TxIn {
@@ -4810,7 +4886,7 @@ mod tests {
                                                txid,
                                                vout: i,
                                        },
-                                       script_sig: Script::new(),
+                                       script_sig: ScriptBuf::new(),
                                        sequence: Sequence::ENABLE_RBF_NO_LOCKTIME,
                                        witness: Witness::new(),
                                });
@@ -4819,7 +4895,7 @@ mod tests {
                                script_pubkey: script_pubkey.clone(),
                                value: 0,
                        });
-                       let base_weight = claim_tx.weight();
+                       let base_weight = claim_tx.weight().to_wu();
                        let inputs_weight = vec![WEIGHT_REVOKED_OUTPUT, weight_revoked_offered_htlc(channel_type_features), weight_revoked_offered_htlc(channel_type_features), weight_revoked_received_htlc(channel_type_features)];
                        let mut inputs_total_weight = 2; // count segwit flags
                        {
@@ -4829,12 +4905,12 @@ mod tests {
                                        inputs_total_weight += inp;
                                }
                        }
-                       assert_eq!(base_weight + inputs_total_weight as usize,  claim_tx.weight() + /* max_length_sig */ (73 * inputs_weight.len() - sum_actual_sigs));
+                       assert_eq!(base_weight + inputs_total_weight, claim_tx.weight().to_wu() + /* max_length_sig */ (73 * inputs_weight.len() as u64 - sum_actual_sigs));
                }
 
                // Claim tx with 1 offered HTLCs, 3 received HTLCs
                for channel_type_features in [ChannelTypeFeatures::only_static_remote_key(), ChannelTypeFeatures::anchors_zero_htlc_fee_and_dependencies()].iter() {
-                       let mut claim_tx = Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() };
+                       let mut claim_tx = Transaction { version: 0, lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() };
                        let mut sum_actual_sigs = 0;
                        for i in 0..4 {
                                claim_tx.input.push(TxIn {
@@ -4842,7 +4918,7 @@ mod tests {
                                                txid,
                                                vout: i,
                                        },
-                                       script_sig: Script::new(),
+                                       script_sig: ScriptBuf::new(),
                                        sequence: Sequence::ENABLE_RBF_NO_LOCKTIME,
                                        witness: Witness::new(),
                                });
@@ -4851,7 +4927,7 @@ mod tests {
                                script_pubkey: script_pubkey.clone(),
                                value: 0,
                        });
-                       let base_weight = claim_tx.weight();
+                       let base_weight = claim_tx.weight().to_wu();
                        let inputs_weight = vec![weight_offered_htlc(channel_type_features), weight_received_htlc(channel_type_features), weight_received_htlc(channel_type_features), weight_received_htlc(channel_type_features)];
                        let mut inputs_total_weight = 2; // count segwit flags
                        {
@@ -4861,19 +4937,19 @@ mod tests {
                                        inputs_total_weight += inp;
                                }
                        }
-                       assert_eq!(base_weight + inputs_total_weight as usize,  claim_tx.weight() + /* max_length_sig */ (73 * inputs_weight.len() - sum_actual_sigs));
+                       assert_eq!(base_weight + inputs_total_weight, claim_tx.weight().to_wu() + /* max_length_sig */ (73 * inputs_weight.len() as u64 - sum_actual_sigs));
                }
 
                // Justice tx with 1 revoked HTLC-Success tx output
                for channel_type_features in [ChannelTypeFeatures::only_static_remote_key(), ChannelTypeFeatures::anchors_zero_htlc_fee_and_dependencies()].iter() {
-                       let mut claim_tx = Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() };
+                       let mut claim_tx = Transaction { version: 0, lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() };
                        let mut sum_actual_sigs = 0;
                        claim_tx.input.push(TxIn {
                                previous_output: BitcoinOutPoint {
                                        txid,
                                        vout: 0,
                                },
-                               script_sig: Script::new(),
+                               script_sig: ScriptBuf::new(),
                                sequence: Sequence::ENABLE_RBF_NO_LOCKTIME,
                                witness: Witness::new(),
                        });
@@ -4881,7 +4957,7 @@ mod tests {
                                script_pubkey: script_pubkey.clone(),
                                value: 0,
                        });
-                       let base_weight = claim_tx.weight();
+                       let base_weight = claim_tx.weight().to_wu();
                        let inputs_weight = vec![WEIGHT_REVOKED_OUTPUT];
                        let mut inputs_total_weight = 2; // count segwit flags
                        {
@@ -4891,9 +4967,66 @@ mod tests {
                                        inputs_total_weight += inp;
                                }
                        }
-                       assert_eq!(base_weight + inputs_total_weight as usize, claim_tx.weight() + /* max_length_isg */ (73 * inputs_weight.len() - sum_actual_sigs));
+                       assert_eq!(base_weight + inputs_total_weight, claim_tx.weight().to_wu() + /* max_length_isg */ (73 * inputs_weight.len() as u64 - sum_actual_sigs));
                }
        }
 
+       #[test]
+       fn test_with_channel_monitor_impl_logger() {
+               let secp_ctx = Secp256k1::new();
+               let logger = Arc::new(TestLogger::new());
+
+               let dummy_key = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
+
+               let keys = InMemorySigner::new(
+                       &secp_ctx,
+                       SecretKey::from_slice(&[41; 32]).unwrap(),
+                       SecretKey::from_slice(&[41; 32]).unwrap(),
+                       SecretKey::from_slice(&[41; 32]).unwrap(),
+                       SecretKey::from_slice(&[41; 32]).unwrap(),
+                       SecretKey::from_slice(&[41; 32]).unwrap(),
+                       [41; 32],
+                       0,
+                       [0; 32],
+                       [0; 32],
+               );
+
+               let counterparty_pubkeys = ChannelPublicKeys {
+                       funding_pubkey: PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[44; 32]).unwrap()),
+                       revocation_basepoint: RevocationBasepoint::from(PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap())),
+                       payment_point: PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[46; 32]).unwrap()),
+                       delayed_payment_basepoint: DelayedPaymentBasepoint::from(PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[47; 32]).unwrap())),
+                       htlc_basepoint: HtlcBasepoint::from(PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[48; 32]).unwrap())),
+               };
+               let funding_outpoint = OutPoint { txid: Txid::all_zeros(), index: u16::max_value() };
+               let channel_parameters = ChannelTransactionParameters {
+                       holder_pubkeys: keys.holder_channel_pubkeys.clone(),
+                       holder_selected_contest_delay: 66,
+                       is_outbound_from_holder: true,
+                       counterparty_parameters: Some(CounterpartyChannelTransactionParameters {
+                               pubkeys: counterparty_pubkeys,
+                               selected_contest_delay: 67,
+                       }),
+                       funding_outpoint: Some(funding_outpoint),
+                       channel_type_features: ChannelTypeFeatures::only_static_remote_key()
+               };
+               let shutdown_pubkey = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
+               let best_block = BestBlock::from_network(Network::Testnet);
+               let monitor = ChannelMonitor::new(Secp256k1::new(), keys,
+                       Some(ShutdownScript::new_p2wpkh_from_pubkey(shutdown_pubkey).into_inner()), 0, &ScriptBuf::new(),
+                       (OutPoint { txid: Txid::from_slice(&[43; 32]).unwrap(), index: 0 }, ScriptBuf::new()),
+                       &channel_parameters, ScriptBuf::new(), 46, 0, HolderCommitmentTransaction::dummy(&mut Vec::new()),
+                       best_block, dummy_key);
+
+               let chan_id = monitor.inner.lock().unwrap().funding_info.0.to_channel_id().clone();
+               let context_logger = WithChannelMonitor::from(&logger, &monitor);
+               log_error!(context_logger, "This is an error");
+               log_warn!(context_logger, "This is an error");
+               log_debug!(context_logger, "This is an error");
+               log_trace!(context_logger, "This is an error");
+               log_gossip!(context_logger, "This is an error");
+               log_info!(context_logger, "This is an error");
+               logger.assert_log_context_contains("lightning::chain::channelmonitor::tests", Some(dummy_key), Some(chan_id), 6);
+       }
        // Further testing is done in the ChannelManager integration tests.
 }