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Implement view tags

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This commit is contained in:
Luke Parker
2022-07-27 06:29:14 -04:00
parent 755dc84859
commit bba93a64c2
4 changed files with 44 additions and 25 deletions
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6
coins/monero/src/wallet/send/mod.rs
View File

@@ -38,6 +38,7 @@ pub use multisig::TransactionMachine;
#[derive(Clone, PartialEq, Eq, Debug)]
struct SendOutput {
R: EdwardsPoint,
view_tag: u8,
dest: EdwardsPoint,
commitment: Commitment,
amount: [u8; 8],
@@ -51,7 +52,7 @@ impl SendOutput {
o: usize,
) -> SendOutput {
let r = random_scalar(rng);
let shared_key =
let (view_tag, shared_key) =
shared_key(Some(unique).filter(|_| output.0.meta.guaranteed), r, &output.0.view, o);
let spend = output.0.spend;
@@ -63,6 +64,7 @@ impl SendOutput {
}
AddressType::Subaddress => r * spend,
},
view_tag,
dest: ((&shared_key * &ED25519_BASEPOINT_TABLE) + spend),
commitment: Commitment::new(commitment_mask(shared_key), output.1),
amount: amount_encryption(output.1, shared_key),
@@ -297,7 +299,7 @@ impl SignableTransaction {
tx_outputs.push(Output {
amount: 0,
key: self.outputs[o].dest,
tag: Some(0).filter(|_| matches!(self.protocol, Protocol::v16)),
view_tag: Some(self.outputs[o].view_tag).filter(|_| matches!(self.protocol, Protocol::v16)),
});
ecdh_info.push(self.outputs[o].amount);
}