Update to rust-secp256k1 v0.11 and rust-bitcoin v0.14

Cargo.toml

@@ -23,16 +23,16 @@ max_level_info = []
 max_level_debug = []
 
 [dependencies]
-bitcoin = "0.13"
+bitcoin = "0.14"
 rust-crypto = "0.2"
 rand = "0.4"
-secp256k1 = "0.9"
+secp256k1 = "0.11"
 
 [build-dependencies]
 cc = "1.0"
 
 [dev-dependencies.bitcoin]
-version = "0.13"
+version = "0.14"
 features = ["bitcoinconsensus"]
 
 [dev-dependencies]

fuzz/Cargo.toml

@@ -18,11 +18,11 @@ honggfuzz_fuzz = ["honggfuzz"]
 [dependencies]
 afl = { version = "0.4", optional = true }
 lightning = { path = "..", features = ["fuzztarget"] }
-bitcoin = { version = "0.13", features = ["fuzztarget"] }
+bitcoin = { version = "0.14", features = ["fuzztarget"] }
 hex = "0.3"
 honggfuzz = { version = "0.5", optional = true }
 rust-crypto = "0.2"
-secp256k1 = { version = "0.9", features=["fuzztarget"] }
+secp256k1 = { version = "0.11", features=["fuzztarget"] }
 
 [build-dependencies]
 cc = "1.0"

src/chain/chaininterface.rs

@@ -181,7 +181,7 @@ impl ChainWatchInterfaceUtil {
 		for input in tx.input.iter() {
 			for outpoint in watched.1.iter() {
 				let &(outpoint_hash, outpoint_index) = outpoint;
-				if outpoint_hash == input.prev_hash && outpoint_index == input.prev_index {
+				if outpoint_hash == input.previous_output.txid && outpoint_index == input.previous_output.vout {
 					return true;
 				}
 			}

src/chain/transaction.rs

@@ -1,7 +1,8 @@
 use bitcoin::util::hash::Sha256dHash;
+use bitcoin::blockdata::transaction::OutPoint as BitcoinOutPoint;
 
 /// A reference to a transaction output.
-/// Differs from bitcoin::blockdata::transaction::TxOutRef as the index is a u16 instead of usize
+/// Differs from bitcoin::blockdata::transaction::OutPoint as the index is a u16 instead of u32
 /// due to LN's restrictions on index values. Should reduce (possibly) unsafe conversions this way.
 #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
 pub struct OutPoint {
@@ -25,6 +26,13 @@ impl OutPoint {
 		res[31] ^= ((self.index >> 0) & 0xff) as u8;
 		res
 	}
+
+	pub fn into_bitcoin_outpoint(self) -> BitcoinOutPoint {
+		BitcoinOutPoint {
+			txid: self.txid,
+			vout: self.index as u32,
+		}
+	}
 }
 
 #[cfg(test)]

src/ln/chan_utils.rs

@@ -1,6 +1,6 @@
 use bitcoin::blockdata::script::{Script,Builder};
 use bitcoin::blockdata::opcodes;
-use bitcoin::blockdata::transaction::{TxIn,TxOut,Transaction};
+use bitcoin::blockdata::transaction::{TxIn,TxOut,OutPoint,Transaction};
 use bitcoin::util::hash::{Hash160,Sha256dHash};
 
 use secp256k1::key::{PublicKey,SecretKey};
@@ -32,10 +32,10 @@ pub fn build_commitment_secret(commitment_seed: [u8; 32], idx: u64) -> [u8; 32]
 	res
 }
 
-pub fn derive_private_key(secp_ctx: &Secp256k1, per_commitment_point: &PublicKey, base_secret: &SecretKey) -> Result<SecretKey, secp256k1::Error> {
+pub fn derive_private_key<T: secp256k1::Signing>(secp_ctx: &Secp256k1<T>, per_commitment_point: &PublicKey, base_secret: &SecretKey) -> Result<SecretKey, secp256k1::Error> {
 	let mut sha = Sha256::new();
 	sha.input(&per_commitment_point.serialize());
-	sha.input(&PublicKey::from_secret_key(&secp_ctx, &base_secret).unwrap().serialize());
+	sha.input(&PublicKey::from_secret_key(&secp_ctx, &base_secret).serialize());
 	let mut res = [0; 32];
 	sha.result(&mut res);
 
@@ -44,21 +44,21 @@ pub fn derive_private_key(secp_ctx: &Secp256k1, per_commitment_point: &PublicKey
 	Ok(key)
 }
 
-pub fn derive_public_key(secp_ctx: &Secp256k1, per_commitment_point: &PublicKey, base_point: &PublicKey) -> Result<PublicKey, secp256k1::Error> {
+pub fn derive_public_key<T: secp256k1::Signing>(secp_ctx: &Secp256k1<T>, per_commitment_point: &PublicKey, base_point: &PublicKey) -> Result<PublicKey, secp256k1::Error> {
 	let mut sha = Sha256::new();
 	sha.input(&per_commitment_point.serialize());
 	sha.input(&base_point.serialize());
 	let mut res = [0; 32];
 	sha.result(&mut res);
 
-	let hashkey = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&secp_ctx, &res)?).unwrap();
+	let hashkey = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&secp_ctx, &res)?);
 	base_point.combine(&secp_ctx, &hashkey)
 }
 
 /// Derives a revocation key from its constituent parts
-pub fn derive_private_revocation_key(secp_ctx: &Secp256k1, per_commitment_secret: &SecretKey, revocation_base_secret: &SecretKey) -> Result<SecretKey, secp256k1::Error> {
-	let revocation_base_point = PublicKey::from_secret_key(&secp_ctx, &revocation_base_secret).unwrap();
-	let per_commitment_point = PublicKey::from_secret_key(&secp_ctx, &per_commitment_secret).unwrap();
+pub fn derive_private_revocation_key<T: secp256k1::Signing>(secp_ctx: &Secp256k1<T>, per_commitment_secret: &SecretKey, revocation_base_secret: &SecretKey) -> Result<SecretKey, secp256k1::Error> {
+	let revocation_base_point = PublicKey::from_secret_key(&secp_ctx, &revocation_base_secret);
+	let per_commitment_point = PublicKey::from_secret_key(&secp_ctx, &per_commitment_secret);
 
 	let rev_append_commit_hash_key = {
 		let mut sha = Sha256::new();
@@ -87,7 +87,7 @@ pub fn derive_private_revocation_key(secp_ctx: &Secp256k1, per_commitment_secret
 	Ok(part_a)
 }
 
-pub fn derive_public_revocation_key(secp_ctx: &Secp256k1, per_commitment_point: &PublicKey, revocation_base_point: &PublicKey) -> Result<PublicKey, secp256k1::Error> {
+pub fn derive_public_revocation_key<T: secp256k1::Verification>(secp_ctx: &Secp256k1<T>, per_commitment_point: &PublicKey, revocation_base_point: &PublicKey) -> Result<PublicKey, secp256k1::Error> {
 	let rev_append_commit_hash_key = {
 		let mut sha = Sha256::new();
 		sha.input(&revocation_base_point.serialize());
@@ -124,7 +124,7 @@ pub struct TxCreationKeys {
 }
 
 impl TxCreationKeys {
-	pub fn new(secp_ctx: &Secp256k1, per_commitment_point: &PublicKey, a_delayed_payment_base: &PublicKey, a_htlc_base: &PublicKey, b_revocation_base: &PublicKey, b_payment_base: &PublicKey, b_htlc_base: &PublicKey) -> Result<TxCreationKeys, secp256k1::Error> {
+	pub fn new<T: secp256k1::Signing + secp256k1::Verification>(secp_ctx: &Secp256k1<T>, per_commitment_point: &PublicKey, a_delayed_payment_base: &PublicKey, a_htlc_base: &PublicKey, b_revocation_base: &PublicKey, b_payment_base: &PublicKey, b_htlc_base: &PublicKey) -> Result<TxCreationKeys, secp256k1::Error> {
 		Ok(TxCreationKeys {
 			per_commitment_point: per_commitment_point.clone(),
 			revocation_key: derive_public_revocation_key(&secp_ctx, &per_commitment_point, &b_revocation_base)?,
@@ -241,8 +241,10 @@ pub fn get_htlc_redeemscript(htlc: &HTLCOutputInCommitment, keys: &TxCreationKey
 pub fn build_htlc_transaction(prev_hash: &Sha256dHash, feerate_per_kw: u64, to_self_delay: u16, htlc: &HTLCOutputInCommitment, a_delayed_payment_key: &PublicKey, revocation_key: &PublicKey) -> Transaction {
 	let mut txins: Vec<TxIn> = Vec::new();
 	txins.push(TxIn {
-		prev_hash: prev_hash.clone(),
-		prev_index: htlc.transaction_output_index,
+		previous_output: OutPoint {
+			txid: prev_hash.clone(),
+			vout: htlc.transaction_output_index,
+		},
 		script_sig: Script::new(),
 		sequence: 0,
 		witness: Vec::new(),