Qortal/pirate-librustzcash
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Attempt to redeem P2SH with secret. This is highly experimental.

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Based on Qortal standard HTLCs. Will need adapting to Pirate specific ones at the very least.
This commit is contained in:
CalDescent 2022-05-15 12:15:16 +01:00
parent 3bc31b9cce
commit a2e12ea51e
1 changed files with 24 additions and 4 deletions
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24
zcash_primitives/src/transaction/builder.rs
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@ -141,6 +141,7 @@ struct TransparentInputInfo {
sk: secp256k1::SecretKey,
pubkey: [u8; secp256k1::constants::PUBLIC_KEY_SIZE],
coin: TxOut,
secret: Vec<u8>,
}
#[cfg(feature = "transparent-inputs")]
@ -171,6 +172,7 @@ impl TransparentInputs {
sk: secp256k1::SecretKey,
utxo: OutPoint,
coin: TxOut,
secret: Vec<u8>,
) -> Result<(), Error> {
if coin.value.is_negative() {
return Err(Error::InvalidAmount);
@ -190,7 +192,7 @@ impl TransparentInputs {
}
mtx.vin.push(TxIn::new(utxo));
self.inputs.push(TransparentInputInfo { sk, pubkey, coin });
self.inputs.push(TransparentInputInfo { sk, pubkey, coin, secret });
Ok(())
}
@ -232,10 +234,16 @@ impl TransparentInputs {
let mut sig_bytes: Vec<u8> = sig.serialize_der()[..].to_vec();
sig_bytes.extend(&[SIGHASH_ALL as u8]);
if (&info.secret.len() > 0) {
// Include secret and redeem script
mtx.vin[i].script_sig = Script::default() << &info.secret[..] << &sig_bytes[..] << &info.pubkey[..] << &info.coin.script_pubkey[..];
}
else {
// P2PKH scriptSig
mtx.vin[i].script_sig = Script::default() << &sig_bytes[..] << &info.pubkey[..];
}
}
}
#[cfg(not(feature = "transparent-inputs"))]
fn apply_signatures(&self, _: &mut TransactionData, _: consensus::BranchId) {}
@ -398,7 +406,19 @@ impl<R: RngCore + CryptoRng> Builder<R> {
utxo: OutPoint,
coin: TxOut,
) -> Result<(), Error> {
self.transparent_inputs.push(&mut self.mtx, sk, utxo, coin)
self.transparent_inputs.push(&mut self.mtx, sk, utxo, coin, Vec::new())
}
/// Adds a transparent coin to be spent in this transaction, with HTLC secret.
#[cfg(feature = "transparent-inputs")]
pub fn add_transparent_input_with_secret(
&mut self,
sk: secp256k1::SecretKey,
utxo: OutPoint,
coin: TxOut,
secret: Vec<u8>,
) -> Result<(), Error> {
self.transparent_inputs.push(&mut self.mtx, sk, utxo, coin, secret)
}
/// Adds a transparent address to send funds to.