Merge pull request #318 from tamasblummer/rbitcoin017

TheBlueMatt · web-flow · commit 35853a607d53 · 2019-03-07T13:31:02.000-05:00
migration to rust-bitcoin 0.17
diff --git a/Cargo.toml b/Cargo.toml
@@ -22,13 +22,13 @@ max_level_info = []
 max_level_debug = []
 
 [dependencies]
-bitcoin = "0.16"
+bitcoin = "0.17"
 bitcoin_hashes = "0.3"
 rand = "0.4"
 secp256k1 = "0.12"
 
 [dev-dependencies.bitcoin]
-version = "0.16"
+version = "0.17"
 features = ["bitcoinconsensus"]
 
 [dev-dependencies]
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
@@ -18,8 +18,8 @@ libfuzzer_fuzz = ["libfuzzer-sys"]
 [dependencies]
 afl = { version = "0.4", optional = true }
 lightning = { path = "..", features = ["fuzztarget"] }
-bitcoin = { version = "0.16", features = ["fuzztarget"] }
-bitcoin_hashes = { version = "0.2", features=["fuzztarget"] }
+bitcoin = { version = "0.17", features = ["fuzztarget"] }
+bitcoin_hashes = { version = "0.3", features=["fuzztarget"] }
 hex = "0.3"
 honggfuzz = { version = "0.5", optional = true }
 secp256k1 = { version = "0.12", features=["fuzztarget"] }
diff --git a/fuzz/fuzz_targets/chanmon_deser_target.rs b/fuzz/fuzz_targets/chanmon_deser_target.rs
@@ -2,9 +2,10 @@
 // To modify it, modify msg_target_template.txt and run gen_target.sh instead.
 
 extern crate bitcoin;
+extern crate bitcoin_hashes;
 extern crate lightning;
 
-use bitcoin::util::hash::Sha256dHash;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 
 use lightning::ln::channelmonitor;
 use lightning::util::reset_rng_state;
diff --git a/fuzz/fuzz_targets/full_stack_target.rs b/fuzz/fuzz_targets/full_stack_target.rs
@@ -18,12 +18,13 @@ use bitcoin::blockdata::script::{Builder, Script};
 use bitcoin::blockdata::opcodes;
 use bitcoin::consensus::encode::deserialize;
 use bitcoin::network::constants::Network;
-use bitcoin::util::hash::{BitcoinHash, Sha256dHash};
+use bitcoin::util::hash::BitcoinHash;
 
 use bitcoin_hashes::Hash as TraitImport;
 use bitcoin_hashes::HashEngine as TraitImportEngine;
 use bitcoin_hashes::sha256::Hash as Sha256;
 use bitcoin_hashes::hash160::Hash as Hash160;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 
 use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
 use lightning::chain::transaction::OutPoint;
diff --git a/fuzz/fuzz_targets/router_target.rs b/fuzz/fuzz_targets/router_target.rs
@@ -1,8 +1,9 @@
 extern crate bitcoin;
+extern crate bitcoin_hashes;
 extern crate lightning;
 extern crate secp256k1;
 
-use bitcoin::util::hash::Sha256dHash;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 use bitcoin::blockdata::script::{Script, Builder};
 
 use lightning::chain::chaininterface::{ChainError,ChainWatchInterface, ChainListener};
diff --git a/src/chain/chaininterface.rs b/src/chain/chaininterface.rs
@@ -8,7 +8,8 @@ use bitcoin::blockdata::block::{Block, BlockHeader};
 use bitcoin::blockdata::transaction::Transaction;
 use bitcoin::blockdata::script::Script;
 use bitcoin::blockdata::constants::genesis_block;
-use bitcoin::util::hash::{BitcoinHash, Sha256dHash};
+use bitcoin::util::hash::BitcoinHash;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 use bitcoin::network::constants::Network;
 
 use util::logger::Logger;
diff --git a/src/chain/keysinterface.rs b/src/chain/keysinterface.rs
@@ -141,23 +141,23 @@ impl KeysManager {
 		let secp_ctx = Secp256k1::signing_only();
 		match ExtendedPrivKey::new_master(network.clone(), seed) {
 			Ok(master_key) => {
-				let node_secret = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(0)).expect("Your RNG is busted").secret_key;
-				let destination_script = match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(1)) {
+				let node_secret = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(0).unwrap()).expect("Your RNG is busted").private_key.key;
+				let destination_script = match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(1).unwrap()) {
 					Ok(destination_key) => {
-						let pubkey_hash160 = Hash160::hash(&ExtendedPubKey::from_private(&secp_ctx, &destination_key).public_key.serialize()[..]);
+						let pubkey_hash160 = Hash160::hash(&ExtendedPubKey::from_private(&secp_ctx, &destination_key).public_key.key.serialize()[..]);
 						Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0)
 						              .push_slice(&pubkey_hash160.into_inner())
 						              .into_script()
 					},
 					Err(_) => panic!("Your RNG is busted"),
 				};
-				let shutdown_pubkey = match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(2)) {
-					Ok(shutdown_key) => ExtendedPubKey::from_private(&secp_ctx, &shutdown_key).public_key,
+				let shutdown_pubkey = match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(2).unwrap()) {
+					Ok(shutdown_key) => ExtendedPubKey::from_private(&secp_ctx, &shutdown_key).public_key.key,
 					Err(_) => panic!("Your RNG is busted"),
 				};
-				let channel_master_key = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(3)).expect("Your RNG is busted");
-				let session_master_key = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(4)).expect("Your RNG is busted");
-				let channel_id_master_key = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(5)).expect("Your RNG is busted");
+				let channel_master_key = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(3).unwrap()).expect("Your RNG is busted");
+				let session_master_key = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(4).unwrap()).expect("Your RNG is busted");
+				let channel_id_master_key = master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx(5).unwrap()).expect("Your RNG is busted");
 				KeysManager {
 					secp_ctx,
 					node_secret,
@@ -207,8 +207,8 @@ impl KeysInterface for KeysManager {
 		sha.input(&byte_utils::be64_to_array(now.as_secs()));
 
 		let child_ix = self.channel_child_index.fetch_add(1, Ordering::AcqRel);
-		let child_privkey = self.channel_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32)).expect("Your RNG is busted");
-		sha.input(&child_privkey.secret_key[..]);
+		let child_privkey = self.channel_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32).expect("key space exhausted")).expect("Your RNG is busted");
+		sha.input(&child_privkey.private_key.key[..]);
 
 		seed = Sha256::from_engine(sha).into_inner();
 
@@ -251,8 +251,8 @@ impl KeysInterface for KeysManager {
 		sha.input(&byte_utils::be64_to_array(now.as_secs()));
 
 		let child_ix = self.session_child_index.fetch_add(1, Ordering::AcqRel);
-		let child_privkey = self.session_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32)).expect("Your RNG is busted");
-		sha.input(&child_privkey.secret_key[..]);
+		let child_privkey = self.session_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32).expect("key space exhausted")).expect("Your RNG is busted");
+		sha.input(&child_privkey.private_key.key[..]);
 		SecretKey::from_slice(&Sha256::from_engine(sha).into_inner()).expect("Your RNG is busted")
 	}
 
@@ -264,8 +264,8 @@ impl KeysInterface for KeysManager {
 		sha.input(&byte_utils::be64_to_array(now.as_secs()));
 
 		let child_ix = self.channel_id_child_index.fetch_add(1, Ordering::AcqRel);
-		let child_privkey = self.channel_id_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32)).expect("Your RNG is busted");
-		sha.input(&child_privkey.secret_key[..]);
+		let child_privkey = self.channel_id_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32).expect("key space exhausted")).expect("Your RNG is busted");
+		sha.input(&child_privkey.private_key.key[..]);
 
 		(Sha256::from_engine(sha).into_inner())
 	}
diff --git a/src/chain/transaction.rs b/src/chain/transaction.rs
@@ -1,6 +1,6 @@
 //! Contains simple structs describing parts of transactions on the chain.
 
-use bitcoin::util::hash::Sha256dHash;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 use bitcoin::blockdata::transaction::OutPoint as BitcoinOutPoint;
 
 /// A reference to a transaction output.
diff --git a/src/ln/chan_utils.rs b/src/ln/chan_utils.rs
@@ -1,12 +1,12 @@
 use bitcoin::blockdata::script::{Script,Builder};
 use bitcoin::blockdata::opcodes;
 use bitcoin::blockdata::transaction::{TxIn,TxOut,OutPoint,Transaction};
-use bitcoin::util::hash::{Sha256dHash};
 
 use bitcoin_hashes::{Hash, HashEngine};
 use bitcoin_hashes::sha256::Hash as Sha256;
 use bitcoin_hashes::ripemd160::Hash as Ripemd160;
 use bitcoin_hashes::hash160::Hash as Hash160;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 
 use ln::channelmanager::PaymentHash;
 
diff --git a/src/ln/channel.rs b/src/ln/channel.rs
@@ -2,13 +2,14 @@ use bitcoin::blockdata::block::BlockHeader;
 use bitcoin::blockdata::script::{Script,Builder};
 use bitcoin::blockdata::transaction::{TxIn, TxOut, Transaction, SigHashType};
 use bitcoin::blockdata::opcodes;
-use bitcoin::util::hash::{BitcoinHash, Sha256dHash};
+use bitcoin::util::hash::BitcoinHash;
 use bitcoin::util::bip143;
 use bitcoin::consensus::encode::{self, Encodable, Decodable};
 
 use bitcoin_hashes::{Hash, HashEngine};
 use bitcoin_hashes::sha256::Hash as Sha256;
 use bitcoin_hashes::hash160::Hash as Hash160;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 
 use secp256k1::key::{PublicKey,SecretKey};
 use secp256k1::{Secp256k1,Signature};
@@ -3143,7 +3144,7 @@ impl Channel {
 			excess_data: Vec::new(),
 		};
 
-		let msghash = hash_to_message!(&Sha256dHash::from_data(&msg.encode()[..])[..]);
+		let msghash = hash_to_message!(&Sha256dHash::hash(&msg.encode()[..])[..]);
 		let sig = self.secp_ctx.sign(&msghash, &self.local_keys.funding_key);
 
 		Ok((msg, sig))
@@ -3954,12 +3955,12 @@ impl<R : ::std::io::Read> ReadableArgs<R, Arc<Logger>> for Channel {
 
 #[cfg(test)]
 mod tests {
-	use bitcoin::util::hash::{Sha256dHash, Hash160};
 	use bitcoin::util::bip143;
 	use bitcoin::consensus::encode::serialize;
 	use bitcoin::blockdata::script::{Script, Builder};
 	use bitcoin::blockdata::transaction::Transaction;
 	use bitcoin::blockdata::opcodes;
+	use bitcoin_hashes::hex::FromHex;
 	use hex;
 	use ln::channelmanager::{HTLCSource, PaymentPreimage, PaymentHash};
 	use ln::channel::{Channel,ChannelKeys,InboundHTLCOutput,OutboundHTLCOutput,InboundHTLCState,OutboundHTLCState,HTLCOutputInCommitment,TxCreationKeys};
@@ -3974,6 +3975,8 @@ mod tests {
 	use secp256k1::{Secp256k1,Message,Signature};
 	use secp256k1::key::{SecretKey,PublicKey};
 	use bitcoin_hashes::sha256::Hash as Sha256;
+	use bitcoin_hashes::sha256d::Hash as Sha256dHash;
+	use bitcoin_hashes::hash160::Hash as Hash160;
 	use bitcoin_hashes::Hash;
 	use std::sync::Arc;
 
@@ -4000,7 +4003,7 @@ mod tests {
 		fn get_destination_script(&self) -> Script {
 			let secp_ctx = Secp256k1::signing_only();
 			let channel_monitor_claim_key = SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
-			let our_channel_monitor_claim_key_hash = Hash160::from_data(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
+			let our_channel_monitor_claim_key_hash = Hash160::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 			Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 		}
 
diff --git a/src/ln/channelmanager.rs b/src/ln/channelmanager.rs
@@ -12,11 +12,12 @@ use bitcoin::blockdata::block::BlockHeader;
 use bitcoin::blockdata::transaction::Transaction;
 use bitcoin::blockdata::constants::genesis_block;
 use bitcoin::network::constants::Network;
-use bitcoin::util::hash::{BitcoinHash, Sha256dHash};
+use bitcoin::util::hash::BitcoinHash;
 
 use bitcoin_hashes::{Hash, HashEngine};
 use bitcoin_hashes::hmac::{Hmac, HmacEngine};
 use bitcoin_hashes::sha256::Hash as Sha256;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 use bitcoin_hashes::cmp::fixed_time_eq;
 
 use secp256k1::key::{SecretKey,PublicKey};
@@ -964,7 +965,7 @@ impl ChannelManager {
 			excess_data: Vec::new(),
 		};
 
-		let msg_hash = Sha256dHash::from_data(&unsigned.encode()[..]);
+		let msg_hash = Sha256dHash::hash(&unsigned.encode()[..]);
 		let sig = self.secp_ctx.sign(&hash_to_message!(&msg_hash[..]), &self.our_network_key);
 
 		Ok(msgs::ChannelUpdate {
@@ -1158,7 +1159,7 @@ impl ChannelManager {
 			Ok(res) => res,
 			Err(_) => return None, // Only in case of state precondition violations eg channel is closing
 		};
-		let msghash = hash_to_message!(&Sha256dHash::from_data(&announcement.encode()[..])[..]);
+		let msghash = hash_to_message!(&Sha256dHash::hash(&announcement.encode()[..])[..]);
 		let our_node_sig = self.secp_ctx.sign(&msghash, &self.our_network_key);
 
 		Some(msgs::AnnouncementSignatures {
@@ -2182,7 +2183,7 @@ impl ChannelManager {
 					try_chan_entry!(self, chan.get_mut().get_channel_announcement(our_node_id.clone(), self.genesis_hash.clone()), channel_state, chan);
 
 				let were_node_one = announcement.node_id_1 == our_node_id;
-				let msghash = hash_to_message!(&Sha256dHash::from_data(&announcement.encode()[..])[..]);
+				let msghash = hash_to_message!(&Sha256dHash::hash(&announcement.encode()[..])[..]);
 				if self.secp_ctx.verify(&msghash, &msg.node_signature, if were_node_one { &announcement.node_id_2 } else { &announcement.node_id_1 }).is_err() ||
 						self.secp_ctx.verify(&msghash, &msg.bitcoin_signature, if were_node_one { &announcement.bitcoin_key_2 } else { &announcement.bitcoin_key_1 }).is_err() {
 					try_chan_entry!(self, Err(ChannelError::Close("Bad announcement_signatures node_signature")), channel_state, chan);
diff --git a/src/ln/channelmonitor.rs b/src/ln/channelmonitor.rs
@@ -17,12 +17,13 @@ use bitcoin::blockdata::transaction::OutPoint as BitcoinOutPoint;
 use bitcoin::blockdata::script::{Script, Builder};
 use bitcoin::blockdata::opcodes;
 use bitcoin::consensus::encode::{self, Decodable, Encodable};
-use bitcoin::util::hash::{BitcoinHash,Sha256dHash};
+use bitcoin::util::hash::BitcoinHash;
 use bitcoin::util::bip143;
 
 use bitcoin_hashes::Hash;
 use bitcoin_hashes::sha256::Hash as Sha256;
 use bitcoin_hashes::hash160::Hash as Hash160;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 
 use secp256k1::{Secp256k1,Signature};
 use secp256k1::key::{SecretKey,PublicKey};
@@ -1179,7 +1180,7 @@ impl ChannelMonitor {
 				// on-chain claims, so we can do that at the same time.
 				macro_rules! check_htlc_fails {
 					($txid: expr, $commitment_tx: expr) => {
-						if let Some(ref outpoints) = self.remote_claimable_outpoints.get(&$txid) {
+						if let Some(ref outpoints) = self.remote_claimable_outpoints.get($txid) {
 							for &(ref htlc, ref source_option) in outpoints.iter() {
 								if let &Some(ref source) = source_option {
 									log_trace!(self, "Failing HTLC with payment_hash {} from {} remote commitment tx due to broadcast of revoked remote commitment transaction", log_bytes!(htlc.payment_hash.0), $commitment_tx);
@@ -1243,7 +1244,7 @@ impl ChannelMonitor {
 			// on-chain claims, so we can do that at the same time.
 			macro_rules! check_htlc_fails {
 				($txid: expr, $commitment_tx: expr, $id: tt) => {
-					if let Some(ref latest_outpoints) = self.remote_claimable_outpoints.get(&$txid) {
+					if let Some(ref latest_outpoints) = self.remote_claimable_outpoints.get($txid) {
 						$id: for &(ref htlc, ref source_option) in latest_outpoints.iter() {
 							if let &Some(ref source) = source_option {
 								// Check if the HTLC is present in the commitment transaction that was
diff --git a/src/ln/functional_tests.rs b/src/ln/functional_tests.rs
@@ -21,7 +21,8 @@ use util::ser::{Writeable, ReadableArgs};
 use util::config::UserConfig;
 use util::rng;
 
-use bitcoin::util::hash::{BitcoinHash, Sha256dHash};
+use bitcoin::util::hash::BitcoinHash;
+use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 use bitcoin::util::bip143;
 use bitcoin::util::address::Address;
 use bitcoin::util::bip32::{ChildNumber, ExtendedPubKey, ExtendedPrivKey};
@@ -2486,7 +2487,7 @@ fn test_force_close_fail_back() {
 	// Now check that if we add the preimage to ChannelMonitor it broadcasts our HTLC-Success..
 	{
 		let mut monitors = nodes[2].chan_monitor.simple_monitor.monitors.lock().unwrap();
-		monitors.get_mut(&OutPoint::new(Sha256dHash::from(&payment_event.commitment_msg.channel_id[..]), 0)).unwrap()
+		monitors.get_mut(&OutPoint::new(Sha256dHash::from_slice(&payment_event.commitment_msg.channel_id[..]).unwrap(), 0)).unwrap()
 			.provide_payment_preimage(&our_payment_hash, &our_payment_preimage);
 	}
 	nodes[2].chain_monitor.block_connected_checked(&header, 1, &[&tx], &[1]);
@@ -3018,7 +3019,7 @@ fn test_invalid_channel_announcement() {
 
 	macro_rules! sign_msg {
 		($unsigned_msg: expr) => {
-			let msghash = Message::from_slice(&Sha256dHash::from_data(&$unsigned_msg.encode()[..])[..]).unwrap();
+			let msghash = Message::from_slice(&Sha256dHash::hash(&$unsigned_msg.encode()[..])[..]).unwrap();
 			let as_bitcoin_sig = secp_ctx.sign(&msghash, &as_chan.get_local_keys().funding_key);
 			let bs_bitcoin_sig = secp_ctx.sign(&msghash, &bs_chan.get_local_keys().funding_key);
 			let as_node_sig = secp_ctx.sign(&msghash, &nodes[0].keys_manager.get_node_secret());
@@ -3045,7 +3046,7 @@ fn test_invalid_channel_announcement() {
 	assert!(nodes[0].router.handle_channel_announcement(&chan_announcement).is_err());
 
 	let mut unsigned_msg = dummy_unsigned_msg!();
-	unsigned_msg.chain_hash = Sha256dHash::from_data(&[1,2,3,4,5,6,7,8,9]);
+	unsigned_msg.chain_hash = Sha256dHash::hash(&[1,2,3,4,5,6,7,8,9]);
 	sign_msg!(unsigned_msg);
 	assert!(nodes[0].router.handle_channel_announcement(&chan_announcement).is_err());
 }
@@ -3267,7 +3268,7 @@ macro_rules! check_spendable_outputs {
 									};
 									let secp_ctx = Secp256k1::new();
 									let remotepubkey = PublicKey::from_secret_key(&secp_ctx, &key);
-									let witness_script = Address::p2pkh(&remotepubkey, Network::Testnet).script_pubkey();
+									let witness_script = Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: remotepubkey}, Network::Testnet).script_pubkey();
 									let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap();
 									let remotesig = secp_ctx.sign(&sighash, key);
 									spend_tx.input[0].witness.push(remotesig.serialize_der().to_vec());
@@ -3322,7 +3323,7 @@ macro_rules! check_spendable_outputs {
 									let secret = {
 										match ExtendedPrivKey::new_master(Network::Testnet, &$node.node_seed) {
 											Ok(master_key) => {
-												match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx($der_idx)) {
+												match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx($der_idx).expect("key space exhausted")) {
 													Ok(key) => key,
 													Err(_) => panic!("Your RNG is busted"),
 												}
@@ -3333,10 +3334,10 @@ macro_rules! check_spendable_outputs {
 									let pubkey = ExtendedPubKey::from_private(&secp_ctx, &secret).public_key;
 									let witness_script = Address::p2pkh(&pubkey, Network::Testnet).script_pubkey();
 									let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap();
-									let sig = secp_ctx.sign(&sighash, &secret.secret_key);
+									let sig = secp_ctx.sign(&sighash, &secret.private_key.key);
 									spend_tx.input[0].witness.push(sig.serialize_der().to_vec());
 									spend_tx.input[0].witness[0].push(SigHashType::All as u8);
-									spend_tx.input[0].witness.push(pubkey.serialize().to_vec());
+									spend_tx.input[0].witness.push(pubkey.key.serialize().to_vec());
 									txn.push(spend_tx);
 								},
 							}
@@ -4456,7 +4457,7 @@ impl msgs::ChannelUpdate {
 		msgs::ChannelUpdate {
 			signature: Signature::from(FFISignature::new()),
 			contents: msgs::UnsignedChannelUpdate {
-				chain_hash: Sha256dHash::from_data(&vec![0u8][..]),
+				chain_hash: Sha256dHash::hash(&vec![0u8][..]),
 				short_channel_id: 0,
 				timestamp: 0,
 				flags: 0,
diff --git a/src/ln/msgs.rs b/src/ln/msgs.rs
diff --git a/src/ln/router.rs b/src/ln/router.rs
diff --git a/src/util/macro_logger.rs b/src/util/macro_logger.rs
diff --git a/src/util/ser.rs b/src/util/ser.rs
diff --git a/src/util/test_utils.rs b/src/util/test_utils.rs
diff --git a/src/util/transaction_utils.rs b/src/util/transaction_utils.rs
