- fn sign_htlc_transaction<T: secp256k1::Signing>(&self, htlc_tx: &mut Transaction, their_sig: &Signature, preimage: &Option<PaymentPreimage>, htlc: &HTLCOutputInCommitment, a_htlc_key: &PublicKey, b_htlc_key: &PublicKey, revocation_key: &PublicKey, per_commitment_point: &PublicKey, secp_ctx: &Secp256k1<T>) {
- if htlc_tx.input.len() != 1 { return; }
- if htlc_tx.input[0].witness.len() != 0 { return; }
-
- let htlc_redeemscript = chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, a_htlc_key, b_htlc_key, revocation_key);
-
- if let Ok(our_htlc_key) = chan_utils::derive_private_key(secp_ctx, per_commitment_point, &self.htlc_base_key) {
- let sighash = hash_to_message!(&bip143::SighashComponents::new(&htlc_tx).sighash_all(&htlc_tx.input[0], &htlc_redeemscript, htlc.amount_msat / 1000)[..]);
- let local_tx = PublicKey::from_secret_key(&secp_ctx, &our_htlc_key) == *a_htlc_key;
- let our_sig = secp_ctx.sign(&sighash, &our_htlc_key);
-
- htlc_tx.input[0].witness.push(Vec::new()); // First is the multisig dummy
+ #[cfg(test)]
+ fn unsafe_sign_local_commitment<T: secp256k1::Signing + secp256k1::Verification>(&self, local_commitment_tx: &LocalCommitmentTransaction, secp_ctx: &Secp256k1<T>) -> Result<Signature, ()> {
+ let funding_pubkey = PublicKey::from_secret_key(secp_ctx, &self.funding_key);
+ let remote_channel_pubkeys = self.remote_channel_pubkeys.as_ref().expect("must set remote channel pubkeys before signing");
+ let channel_funding_redeemscript = make_funding_redeemscript(&funding_pubkey, &remote_channel_pubkeys.funding_pubkey);