github-such-software/hash-wallet
1
0
Fork 1
mirror of https://github.com/Such-Software/hash-wallet.git synced 2026-10-26 06:08:40 +01:00
Code Issues Packages Projects Releases Wiki Activity

fix: avoid UIH2 fingerprint in payjoin receiver input selection (#3304)

Browse Source 
Co-authored-by: Konstantin Ullrich <konstantin@cakewallet.com>
This commit is contained in:
Cindy
2026-06-18 10:45:08 +02:00
committed by GitHub
co-authored by Konstantin Ullrich
parent 29684affc2
commit 874d724c67
1 changed files with 11 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cw_bitcoin/lib/payjoin/payjoin_receive_worker.dart
+11 -1
View File
@@ -179,7 +179,17 @@ class PayjoinReceiverWorker {
final unspent = listUnspent as List<UtxoWithPrivateKey>;
if (unspent.isEmpty) throw RecoverableError('No unspent outputs available');
final selectedUtxo = await _inputPairFromUtxo(unspent[0]);
final candidateInputs =
await Future.wait(unspent.map(_inputPairFromUtxo));
// Prefer a UTXO that avoids the Unnecessary Input Heuristic (UIH2);
// fall back to the first candidate if none preserves privacy.
InputPair selectedUtxo = candidateInputs.first;
try {
selectedUtxo =
await pj5.tryPreservingPrivacy(candidateInputs: candidateInputs);
} catch (_) {}
final pj6 = await pj5.contributeInputs(replacementInputs: [selectedUtxo]);
final pj7 = await pj6.commitInputs();