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b73c46ac59
* Shuffle change output on hardware wallet sends Hardware wallet BTC/LTC sends passed outputs to the PSBT/device in the given order (change last), a position fingerprint. The outputOrdering param was plumbed but ignored. Add orderOutputs() and apply it in both buildHardwareWalletTransaction paths; set the send call site to shuffle. Refs #3376 (the software send + RBF paths were covered by #3420). * Shuffle change output on Bitcoin Cash sends The BCH send path built via ForkedTransactionBuilder with outputOrdering: none, leaving change deterministically last. The builder shuffles natively and change is found by isChange, not position, so flip it to shuffle (matches the BTC software path from #3420). Refs #3376. * Update cw_bitcoin/lib/electrum_wallet.dart Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com> --------- Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
cw_bitcoin
Bitcoin-family Electrum wallet implementation used by Cake Wallet (BTC, LTC and derivatives).
Features
- Electrum client and wallet with address/UTXO management and snapshots.
- Derivation via BIP‑39; receive/change chains with per-coin configs.
- Create/sign/broadcast transactions; PSBT helpers and payjoin support.
- Transaction history, priorities, and size-based fee calculations.
- Hardware wallet support for BTC/LTC.
Getting started
Use the module via app services (see bitcoin_wallet_service.dart, litecoin_wallet_service.dart). Ensure Electrum nodes are configured for the target coin.
final wallet = await BitcoinWallet.create(
mnemonic: '...',
password: 'secret',
walletInfo: walletInfo,
unspentCoinsInfo: unspentCoinsBox,
encryptionFileUtils: encryption,
);
Usage
Send BTC with medium priority:
final feeRate = wallet.feeRate(BitcoinTransactionPriority.medium);
final pending = await wallet.createTransaction(
outputs: [BitcoinTransactionOutput(address: 'bc1...', amount: 50000)],
feeRate: feeRate,
);
final txHash = await pending.commit();
See lib/ for wallet/services, PSBT, and payjoin utilities.