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Eliminate build_bitcoin_punish_transaction

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We reduce indirection by constructing TxPunish directly based off
`State3` and make the type itself more powerful by moving the logic
of completing it with a signature onto it.
This commit is contained in:
Thomas Eizinger 2021-03-16 18:02:31 +11:00
parent dd6c66a594
commit 6beb732e35
No known key found for this signature in database
GPG key ID: 651AC83A6C6C8B96
5 changed files with 34 additions and 46 deletions
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22
swap/src/protocol/alice/steps.rs
View file

@ -143,25 +143,3 @@ pub fn extract_monero_private_key(
Ok(spend_key)
}
pub fn build_bitcoin_punish_transaction(
tx_lock: &TxLock,
cancel_timelock: CancelTimelock,
punish_address: &bitcoin::Address,
punish_timelock: PunishTimelock,
tx_punish_sig_bob: bitcoin::Signature,
a: bitcoin::SecretKey,
B: bitcoin::PublicKey,
) -> Result<bitcoin::Transaction> {
let tx_cancel = bitcoin::TxCancel::new(&tx_lock, cancel_timelock, a.public(), B);
let tx_punish = bitcoin::TxPunish::new(&tx_cancel, &punish_address, punish_timelock);
let sig_a = a.sign(tx_punish.digest());
let sig_b = tx_punish_sig_bob;
let signed_tx_punish = tx_punish
.add_signatures((a.public(), sig_a), (B, sig_b))
.expect("sig_{a,b} to be valid signatures for tx_cancel");
Ok(signed_tx_punish)
}