// You may not use this file except in accordance with one or both of these
// licenses.
-use ln::chan_utils::{HTLCOutputInCommitment, TxCreationKeys, ChannelPublicKeys, LocalCommitmentTransaction, PreCalculatedTxCreationKeys};
+use ln::chan_utils::{HTLCOutputInCommitment, TxCreationKeys, ChannelPublicKeys, HolderCommitmentTransaction, PreCalculatedTxCreationKeys};
use ln::{chan_utils, msgs};
use chain::keysinterface::{ChannelKeys, InMemoryChannelKeys};
use std::cmp;
use std::sync::{Mutex, Arc};
-use bitcoin::blockdata::transaction::Transaction;
+use bitcoin::blockdata::transaction::{Transaction, SigHashType};
use bitcoin::util::bip143;
use bitcoin::secp256k1;
impl EnforcingChannelKeys {
fn check_keys<T: secp256k1::Signing + secp256k1::Verification>(&self, secp_ctx: &Secp256k1<T>,
keys: &TxCreationKeys) {
- let remote_points = self.inner.remote_pubkeys();
+ let remote_points = self.inner.counterparty_pubkeys();
let keys_expected = TxCreationKeys::derive_new(secp_ctx,
&keys.per_commitment_point,
fn pubkeys(&self) -> &ChannelPublicKeys { self.inner.pubkeys() }
fn key_derivation_params(&self) -> (u64, u64) { self.inner.key_derivation_params() }
- fn sign_remote_commitment<T: secp256k1::Signing + secp256k1::Verification>(&self, feerate_per_kw: u32, commitment_tx: &Transaction, pre_keys: &PreCalculatedTxCreationKeys, htlcs: &[&HTLCOutputInCommitment], secp_ctx: &Secp256k1<T>) -> Result<(Signature, Vec<Signature>), ()> {
+ fn sign_counterparty_commitment<T: secp256k1::Signing + secp256k1::Verification>(&self, feerate_per_kw: u32, commitment_tx: &Transaction, pre_keys: &PreCalculatedTxCreationKeys, htlcs: &[&HTLCOutputInCommitment], secp_ctx: &Secp256k1<T>) -> Result<(Signature, Vec<Signature>), ()> {
if commitment_tx.input.len() != 1 { panic!("lightning commitment transactions have a single input"); }
self.check_keys(secp_ctx, pre_keys.trust_key_derivation());
let obscured_commitment_transaction_number = (commitment_tx.lock_time & 0xffffff) as u64 | ((commitment_tx.input[0].sequence as u64 & 0xffffff) << 3*8);
commitment_data.1 = cmp::max(commitment_number, commitment_data.1)
}
- Ok(self.inner.sign_remote_commitment(feerate_per_kw, commitment_tx, pre_keys, htlcs, secp_ctx).unwrap())
+ Ok(self.inner.sign_counterparty_commitment(feerate_per_kw, commitment_tx, pre_keys, htlcs, secp_ctx).unwrap())
}
- fn sign_local_commitment<T: secp256k1::Signing + secp256k1::Verification>(&self, local_commitment_tx: &LocalCommitmentTransaction, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
+ fn sign_holder_commitment<T: secp256k1::Signing + secp256k1::Verification>(&self, holder_commitment_tx: &HolderCommitmentTransaction, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
// TODO: enforce the ChannelKeys contract - error if this commitment was already revoked
// TODO: need the commitment number
- Ok(self.inner.sign_local_commitment(local_commitment_tx, secp_ctx).unwrap())
+ Ok(self.inner.sign_holder_commitment(holder_commitment_tx, secp_ctx).unwrap())
}
#[cfg(any(test,feature = "unsafe_revoked_tx_signing"))]
- fn unsafe_sign_local_commitment<T: secp256k1::Signing + secp256k1::Verification>(&self, local_commitment_tx: &LocalCommitmentTransaction, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
- Ok(self.inner.unsafe_sign_local_commitment(local_commitment_tx, secp_ctx).unwrap())
+ fn unsafe_sign_holder_commitment<T: secp256k1::Signing + secp256k1::Verification>(&self, holder_commitment_tx: &HolderCommitmentTransaction, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
+ Ok(self.inner.unsafe_sign_holder_commitment(holder_commitment_tx, secp_ctx).unwrap())
}
- fn sign_local_commitment_htlc_transactions<T: secp256k1::Signing + secp256k1::Verification>(&self, local_commitment_tx: &LocalCommitmentTransaction, secp_ctx: &Secp256k1<T>) -> Result<Vec<Option<Signature>>, ()> {
- let commitment_txid = local_commitment_tx.txid();
- let local_csv = self.inner.remote_to_self_delay();
+ fn sign_holder_commitment_htlc_transactions<T: secp256k1::Signing + secp256k1::Verification>(&self, holder_commitment_tx: &HolderCommitmentTransaction, secp_ctx: &Secp256k1<T>) -> Result<Vec<Option<Signature>>, ()> {
+ let commitment_txid = holder_commitment_tx.txid();
+ let holder_csv = self.inner.counterparty_selected_contest_delay();
- for this_htlc in local_commitment_tx.per_htlc.iter() {
+ for this_htlc in holder_commitment_tx.per_htlc.iter() {
if this_htlc.0.transaction_output_index.is_some() {
- let htlc_tx = chan_utils::build_htlc_transaction(&commitment_txid, local_commitment_tx.feerate_per_kw, local_csv, &this_htlc.0, &local_commitment_tx.local_keys.a_delayed_payment_key, &local_commitment_tx.local_keys.revocation_key);
+ let htlc_tx = chan_utils::build_htlc_transaction(&commitment_txid, holder_commitment_tx.feerate_per_kw, holder_csv, &this_htlc.0, &holder_commitment_tx.keys.broadcaster_delayed_payment_key, &holder_commitment_tx.keys.revocation_key);
- let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&this_htlc.0, &local_commitment_tx.local_keys);
+ let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&this_htlc.0, &holder_commitment_tx.keys);
- let sighash = hash_to_message!(&bip143::SighashComponents::new(&htlc_tx).sighash_all(&htlc_tx.input[0], &htlc_redeemscript, this_htlc.0.amount_msat / 1000)[..]);
- secp_ctx.verify(&sighash, this_htlc.1.as_ref().unwrap(), &local_commitment_tx.local_keys.b_htlc_key).unwrap();
+ let sighash = hash_to_message!(&bip143::SigHashCache::new(&htlc_tx).signature_hash(0, &htlc_redeemscript, this_htlc.0.amount_msat / 1000, SigHashType::All)[..]);
+ secp_ctx.verify(&sighash, this_htlc.1.as_ref().unwrap(), &holder_commitment_tx.keys.countersignatory_htlc_key).unwrap();
}
}
- Ok(self.inner.sign_local_commitment_htlc_transactions(local_commitment_tx, secp_ctx).unwrap())
+ Ok(self.inner.sign_holder_commitment_htlc_transactions(holder_commitment_tx, secp_ctx).unwrap())
}
fn sign_justice_transaction<T: secp256k1::Signing + secp256k1::Verification>(&self, justice_tx: &Transaction, input: usize, amount: u64, per_commitment_key: &SecretKey, htlc: &Option<HTLCOutputInCommitment>, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
Ok(self.inner.sign_justice_transaction(justice_tx, input, amount, per_commitment_key, htlc, secp_ctx).unwrap())
}
- fn sign_remote_htlc_transaction<T: secp256k1::Signing + secp256k1::Verification>(&self, htlc_tx: &Transaction, input: usize, amount: u64, per_commitment_point: &PublicKey, htlc: &HTLCOutputInCommitment, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
- Ok(self.inner.sign_remote_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc, secp_ctx).unwrap())
+ fn sign_counterparty_htlc_transaction<T: secp256k1::Signing + secp256k1::Verification>(&self, htlc_tx: &Transaction, input: usize, amount: u64, per_commitment_point: &PublicKey, htlc: &HTLCOutputInCommitment, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
+ Ok(self.inner.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc, secp_ctx).unwrap())
}
fn sign_closing_transaction<T: secp256k1::Signing>(&self, closing_tx: &Transaction, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
self.inner.sign_channel_announcement(msg, secp_ctx)
}
- fn on_accept(&mut self, channel_pubkeys: &ChannelPublicKeys, remote_to_self_delay: u16, local_to_self_delay: u16) {
- self.inner.on_accept(channel_pubkeys, remote_to_self_delay, local_to_self_delay)
+ fn on_accept(&mut self, channel_pubkeys: &ChannelPublicKeys, counterparty_selected_delay: u16, holder_selected_delay: u16) {
+ self.inner.on_accept(channel_pubkeys, counterparty_selected_delay, holder_selected_delay)
}
}
projects / rust-lightning / blobdiff