Cw 604 integrate bitcoin ledger (#1407)

* CW-503 Prepare Ledger integration * CW-503 Revert Tor ignore * CW-503 Add Connect Device Page * CW-503 Add createWalletFromDevice for monero * CW-503 Add Connect Device Page * CW-503 Add Connect Device Page * CW-503 Add Debug Options * CW-503 Add proper hardware wallet selection screen * CW-503 Minor design changes on connect_device_page * CW-503 Add Create Wallet from Ledger * CW-503 Spent Ledger ETH Funds * CW-503 Minor fixes * CW-503 Fix Merge conflicts * CW-503 Fix Merge conflicts * CW-503 Fix Merge conflicts * CW-503 Fix minor conflicts * CW-503 Improve Ledger BLE Communication * CW-503 Improve Ledger BLE Communication * CW-503 Rollback Monero Test code * CW-503 Fix Execution failed for task :app:checkReleaseDuplicateClasses * CW-503 Better Error-Exceptions * CW-503 Add SetPinScreen before restore from hardware-wallet * CW-503 override web3dart to use cake's git hosted version * CW-503 Implement ledger sign messages * CW-503 Implement ledger sign messages and send erc20 tokens * CW-503 Fix merge conflicts * CW-503 Fix merge conflicts * CW-503 Use dep override for ledger_flutter * CW-503 Ledger ERC20 finalisation * CW-503 More graceful error handling * CW-503 Even more graceful error handling & remove debug code * CW-503 Minor Changes for Vik * CW-503 Fix USB connection * CW-503 Maybe this overrides web3dart finally * Indicate Loading on the first 5 Wallet Accounts * Prepare Ledger Bitcoin * Fix conflicts with main * Add Bluetooth permission to iOS [skip ci] * add privacyinfo for ios [skip ci] * update PrivacyInfo.xcprivacy [scip ci] * ios shit [skip ci] * Improve bitcoin xpub * Resolve open Todos regarding iOS Support * Minor debug * Remove erc20 dependency to have more granular control over the tx UX * Create Bitcoin Wallets using xpub * Create Bitcoin Wallets using xpub * Better error handling * Improve Ledger account handling * Add Bitcoin Support for Ledger * Add Bitcoin Support for Ledger * Add Bitcoin Support for Ledger * Implement requested Changes * Implement requested Changes * Minor fix * Implement requested Changes * Implement requested Changes * Add comment to remind me * Enable RBF for Bitcoin Ledger * Fix merge conflicts * Update wallet_info.dart * Cw 503 ledger support (#1310) * CW-503 Prepare Ledger integration * CW-503 Revert Tor ignore * CW-503 Add Connect Device Page * CW-503 Add createWalletFromDevice for monero * CW-503 Add Connect Device Page * CW-503 Add Connect Device Page * CW-503 Add Debug Options * CW-503 Add proper hardware wallet selection screen * CW-503 Minor design changes on connect_device_page * CW-503 Add Create Wallet from Ledger * CW-503 Spent Ledger ETH Funds * CW-503 Minor fixes * CW-503 Fix Merge conflicts * CW-503 Fix Merge conflicts * CW-503 Fix Merge conflicts * CW-503 Fix minor conflicts * CW-503 Improve Ledger BLE Communication * CW-503 Improve Ledger BLE Communication * CW-503 Rollback Monero Test code * CW-503 Fix Execution failed for task :app:checkReleaseDuplicateClasses * CW-503 Better Error-Exceptions * CW-503 Add SetPinScreen before restore from hardware-wallet * CW-503 override web3dart to use cake's git hosted version * CW-503 Implement ledger sign messages * CW-503 Implement ledger sign messages and send erc20 tokens * CW-503 Fix merge conflicts * CW-503 Fix merge conflicts * CW-503 Use dep override for ledger_flutter * CW-503 Ledger ERC20 finalisation * CW-503 More graceful error handling * CW-503 Even more graceful error handling & remove debug code * CW-503 Minor Changes for Vik * CW-503 Fix USB connection * CW-503 Maybe this overrides web3dart finally * Indicate Loading on the first 5 Wallet Accounts * Fix conflicts with main * Add Bluetooth permission to iOS [skip ci] * add privacyinfo for ios [skip ci] * update PrivacyInfo.xcprivacy [scip ci] * ios shit [skip ci] * Resolve open Todos regarding iOS Support * Remove erc20 dependency to have more granular control over the tx UX * Better error handling * Improve Ledger account handling * Implement requested Changes * Implement requested Changes * Implement requested Changes * Implement requested Changes * Fix merge conflicts * Update wallet_info.dart --------- Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com> * Fix merge conflicts * Fix merge conflicts * Minor Fix to derivations * Update cw_bitcoin/lib/bitcoin_wallet.dart [skip ci] * Update cw_bitcoin/lib/bitcoin_wallet.dart [skip ci] * Update cw_bitcoin/lib/electrum_wallet.dart [skip ci] * Fix backward compatibility issues * Merge Tron * Fix Tron with HW changes * fix ble on iOS fix tron address validation --------- Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
2026-10-19 05:58:50 +02:00 · 2024-05-05 04:44:50 +03:00
parent 043d7d7c8b
commit 5eabdcdca1
118 changed files with 3363 additions and 579 deletions
@@ -0,0 +1,43 @@
+import 'dart:async';
+
+import 'package:bitcoin_base/bitcoin_base.dart';
+import 'package:bitcoin_flutter/bitcoin_flutter.dart';
+import 'package:cw_bitcoin/utils.dart';
+import 'package:cw_core/hardware/hardware_account_data.dart';
+import 'package:ledger_bitcoin/ledger_bitcoin.dart';
+import 'package:ledger_flutter/ledger_flutter.dart';
+
+class BitcoinHardwareWalletService {
+  BitcoinHardwareWalletService(this.ledger, this.device);
+
+  final Ledger ledger;
+  final LedgerDevice device;
+
+  Future<List<HardwareAccountData>> getAvailableAccounts({int index = 0, int limit = 5}) async {
+    final bitcoinLedgerApp = BitcoinLedgerApp(ledger);
+
+    final masterFp = await bitcoinLedgerApp.getMasterFingerprint(device);
+    print(masterFp);
+
+    final accounts = <HardwareAccountData>[];
+    final indexRange = List.generate(limit, (i) => i + index);
+
+    for (final i in indexRange) {
+      final derivationPath = "m/84'/0'/$i'";
+      final xpub = await bitcoinLedgerApp.getXPubKey(device, derivationPath: derivationPath);
+      HDWallet hd = HDWallet.fromBase58(xpub).derive(0);
+
+      final address = generateP2WPKHAddress(hd: hd, index: 0, network: BitcoinNetwork.mainnet);
+
+      accounts.add(HardwareAccountData(
+        address: address,
+        accountIndex: i,
+        derivationPath: derivationPath,
+        masterFingerprint: masterFp,
+        xpub: xpub,
+      ));
+    }
+
+    return accounts;
+  }
+}
@@ -1,8 +1,13 @@
 import 'package:bitcoin_base/bitcoin_base.dart';
+import 'package:convert/convert.dart';
+
 import 'package:cw_bitcoin/bitcoin_mnemonic.dart';
+import 'package:cw_bitcoin/psbt_transaction_builder.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cw_core/unspent_coins_info.dart';
 import 'package:hive/hive.dart';
+import 'package:ledger_bitcoin/ledger_bitcoin.dart';
+import 'package:ledger_flutter/ledger_flutter.dart';
 import 'package:mobx/mobx.dart';
 import 'package:flutter/foundation.dart';
 import 'package:bitcoin_flutter/bitcoin_flutter.dart' as bitcoin;
@@ -20,11 +25,12 @@ class BitcoinWallet = BitcoinWalletBase with _$BitcoinWallet;

 abstract class BitcoinWalletBase extends ElectrumWallet with Store {
  BitcoinWalletBase({
-    required String mnemonic,
    required String password,
    required WalletInfo walletInfo,
    required Box<UnspentCoinsInfo> unspentCoinsInfo,
-    required Uint8List seedBytes,
+    Uint8List? seedBytes,
+    String? mnemonic,
+    String? xpub,
    String? addressPageType,
    BasedUtxoNetwork? networkParam,
    List<BitcoinAddressRecord>? initialAddresses,
@@ -33,24 +39,26 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
    Map<String, int>? initialChangeAddressIndex,
    String? passphrase,
  }) : super(
-            mnemonic: mnemonic,
-            passphrase: passphrase,
-            password: password,
-            walletInfo: walletInfo,
-            unspentCoinsInfo: unspentCoinsInfo,
-            networkType: networkParam == null
-                ? bitcoin.bitcoin
-                : networkParam == BitcoinNetwork.mainnet
-                    ? bitcoin.bitcoin
-                    : bitcoin.testnet,
-            initialAddresses: initialAddresses,
-            initialBalance: initialBalance,
-            seedBytes: seedBytes,
-            currency: CryptoCurrency.btc) {
+      mnemonic: mnemonic,
+      passphrase: passphrase,
+      xpub: xpub,
+      password: password,
+      walletInfo: walletInfo,
+      unspentCoinsInfo: unspentCoinsInfo,
+      networkType: networkParam == null
+          ? bitcoin.bitcoin
+          : networkParam == BitcoinNetwork.mainnet
+              ? bitcoin.bitcoin
+              : bitcoin.testnet,
+      initialAddresses: initialAddresses,
+      initialBalance: initialBalance,
+      seedBytes: seedBytes,
+      currency: CryptoCurrency.btc) {
    // in a standard BIP44 wallet, mainHd derivation path = m/84'/0'/0'/0 (account 0, index unspecified here)
    // the sideHd derivation path = m/84'/0'/0'/1 (account 1, index unspecified here)
-    String derivationPath = walletInfo.derivationInfo!.derivationPath!;
-    String sideDerivationPath = derivationPath.substring(0, derivationPath.length - 1) + "1";
+    // String derivationPath = walletInfo.derivationInfo!.derivationPath!;
+    // String sideDerivationPath = derivationPath.substring(0, derivationPath.length - 1) + "1";
+    // final hd = bitcoin.HDWallet.fromSeed(seedBytes, network: networkType);
    walletAddresses = BitcoinWalletAddresses(
      walletInfo,
      electrumClient: electrumClient,
@@ -58,7 +66,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
      initialRegularAddressIndex: initialRegularAddressIndex,
      initialChangeAddressIndex: initialChangeAddressIndex,
      mainHd: hd,
-      sideHd: bitcoin.HDWallet.fromSeed(seedBytes, network: networkType).derivePath(sideDerivationPath),
+      sideHd: accountHD.derive(1),
      network: networkParam ?? network,
    );
    autorun((_) {
@@ -129,23 +137,26 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
    walletInfo.derivationInfo!.derivationPath = snp.derivationPath ?? "m/0'/0";
    walletInfo.derivationInfo!.derivationType = snp.derivationType ?? DerivationType.electrum;

-    late Uint8List seedBytes;
+    Uint8List? seedBytes = null;

-    switch (walletInfo.derivationInfo!.derivationType) {
-      case DerivationType.electrum:
-        seedBytes = await mnemonicToSeedBytes(snp.mnemonic);
-        break;
-      case DerivationType.bip39:
-      default:
-        seedBytes = await bip39.mnemonicToSeed(
-          snp.mnemonic,
-          passphrase: snp.passphrase ?? '',
-        );
-        break;
+    if (snp.mnemonic != null) {
+      switch (walletInfo.derivationInfo!.derivationType) {
+        case DerivationType.electrum:
+          seedBytes = await mnemonicToSeedBytes(snp.mnemonic!);
+          break;
+        case DerivationType.bip39:
+        default:
+          seedBytes = await bip39.mnemonicToSeed(
+            snp.mnemonic!,
+            passphrase: snp.passphrase ?? '',
+          );
+          break;
+      }
    }

    return BitcoinWallet(
      mnemonic: snp.mnemonic,
+      xpub: snp.xpub,
      password: password,
      passphrase: snp.passphrase,
      walletInfo: walletInfo,
@@ -159,4 +170,49 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
      networkParam: network,
    );
  }
+
+  Ledger? _ledger;
+  LedgerDevice? _ledgerDevice;
+  BitcoinLedgerApp? _bitcoinLedgerApp;
+
+  void setLedger(Ledger setLedger, LedgerDevice setLedgerDevice) {
+    _ledger = setLedger;
+    _ledgerDevice = setLedgerDevice;
+    _bitcoinLedgerApp = BitcoinLedgerApp(_ledger!, derivationPath: walletInfo.derivationInfo!.derivationPath!);
+  }
+
+  @override
+  Future<BtcTransaction> buildHardwareWalletTransaction({
+    required List<BitcoinBaseOutput> outputs,
+    required BigInt fee,
+    required BasedUtxoNetwork network,
+    required List<UtxoWithAddress> utxos,
+    required Map<String, PublicKeyWithDerivationPath> publicKeys,
+    String? memo,
+    bool enableRBF = false,
+    BitcoinOrdering inputOrdering = BitcoinOrdering.bip69,
+    BitcoinOrdering outputOrdering = BitcoinOrdering.bip69,
+  }) async {
+    final masterFingerprint = await _bitcoinLedgerApp!.getMasterFingerprint(_ledgerDevice!);
+
+    final psbtReadyInputs = <PSBTReadyUtxoWithAddress>[];
+    for (final utxo in utxos) {
+      final rawTx = await electrumClient.getTransactionHex(hash: utxo.utxo.txHash);
+      final publicKeyAndDerivationPath = publicKeys[utxo.ownerDetails.address.pubKeyHash()]!;
+
+      psbtReadyInputs.add(PSBTReadyUtxoWithAddress(
+          utxo: utxo.utxo,
+          rawTx: rawTx,
+          ownerDetails: utxo.ownerDetails,
+          ownerDerivationPath: publicKeyAndDerivationPath.derivationPath,
+          ownerMasterFingerprint: masterFingerprint,
+          ownerPublicKey: publicKeyAndDerivationPath.publicKey,
+      ));
+    }
+
+    final psbt = PSBTTransactionBuild(inputs: psbtReadyInputs, outputs: outputs, enableRBF: enableRBF);
+
+    final rawHex = await _bitcoinLedgerApp!.signPsbt(_ledgerDevice!, psbt: psbt.psbt);
+    return BtcTransaction.fromRaw(hex.encode(rawHex));
+  }
 }
@@ -1,3 +1,4 @@
+import 'package:cw_core/hardware/hardware_account_data.dart';
 import 'package:cw_core/wallet_credentials.dart';
 import 'package:cw_core/wallet_info.dart';

@@ -36,9 +37,22 @@ class BitcoinRestoreWalletFromSeedCredentials extends WalletCredentials {
 }

 class BitcoinRestoreWalletFromWIFCredentials extends WalletCredentials {
-  BitcoinRestoreWalletFromWIFCredentials(
-      {required String name, required String password, required this.wif, WalletInfo? walletInfo})
-      : super(name: name, password: password, walletInfo: walletInfo);
+  BitcoinRestoreWalletFromWIFCredentials({
+    required String name,
+    required String password,
+    required this.wif,
+    WalletInfo? walletInfo,
+  }) : super(name: name, password: password, walletInfo: walletInfo);

  final String wif;
 }
+
+class BitcoinRestoreWalletFromHardware extends WalletCredentials {
+  BitcoinRestoreWalletFromHardware({
+    required String name,
+    required this.hwAccountData,
+    WalletInfo? walletInfo,
+  }) : super(name: name, walletInfo: walletInfo);
+
+  final HardwareAccountData hwAccountData;
+}
@@ -14,8 +14,11 @@ import 'package:hive/hive.dart';
 import 'package:collection/collection.dart';
 import 'package:bip39/bip39.dart' as bip39;

-class BitcoinWalletService extends WalletService<BitcoinNewWalletCredentials,
-    BitcoinRestoreWalletFromSeedCredentials, BitcoinRestoreWalletFromWIFCredentials> {
+class BitcoinWalletService extends WalletService<
+    BitcoinNewWalletCredentials,
+    BitcoinRestoreWalletFromSeedCredentials,
+    BitcoinRestoreWalletFromWIFCredentials,
+    BitcoinRestoreWalletFromHardware> {
  BitcoinWalletService(this.walletInfoSource, this.unspentCoinsInfoSource);

  final Box<WalletInfo> walletInfoSource;
@@ -99,9 +102,28 @@ class BitcoinWalletService extends WalletService<BitcoinNewWalletCredentials,
    await walletInfoSource.put(currentWalletInfo.key, newWalletInfo);
  }

+  @override
+  Future<BitcoinWallet> restoreFromHardwareWallet(BitcoinRestoreWalletFromHardware credentials,
+      {bool? isTestnet}) async {
+
+    final network = isTestnet == true ? BitcoinNetwork.testnet : BitcoinNetwork.mainnet;
+    credentials.walletInfo?.network = network.value;
+    credentials.walletInfo?.derivationInfo?.derivationPath = credentials.hwAccountData.derivationPath;
+
+    final wallet = await BitcoinWallet(password: credentials.password!,
+      xpub: credentials.hwAccountData.xpub,
+      walletInfo: credentials.walletInfo!,
+      unspentCoinsInfo: unspentCoinsInfoSource,
+      networkParam: network,
+    );
+    await wallet.save();
+    await wallet.init();
+    return wallet;
+  }
+
  @override
  Future<BitcoinWallet> restoreFromKeys(BitcoinRestoreWalletFromWIFCredentials credentials,
-          {bool? isTestnet}) async =>
+      {bool? isTestnet}) async =>
      throw UnimplementedError();

  @override
@@ -4,7 +4,7 @@ Map<DerivationType, List<DerivationInfo>> electrum_derivations = {
  DerivationType.electrum: [
    DerivationInfo(
      derivationType: DerivationType.electrum,
-      derivationPath: "m/0'/0",
+      derivationPath: "m/0'",
      description: "Electrum",
      scriptType: "p2wpkh",
    ),
@@ -4,8 +4,8 @@ import 'dart:io';
 import 'dart:math';

 import 'package:bitcoin_base/bitcoin_base.dart';
-import 'package:bitcoin_flutter/bitcoin_flutter.dart' as bitcoin;
 import 'package:bitcoin_base/bitcoin_base.dart' as bitcoin_base;
+import 'package:bitcoin_flutter/bitcoin_flutter.dart' as bitcoin;
 import 'package:collection/collection.dart';
 import 'package:cw_bitcoin/address_from_output.dart';
 import 'package:cw_bitcoin/bitcoin_address_record.dart';
@@ -37,9 +37,9 @@ import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:flutter/foundation.dart';
 import 'package:hive/hive.dart';
+import 'package:http/http.dart' as http;
 import 'package:mobx/mobx.dart';
 import 'package:rxdart/subjects.dart';
-import 'package:http/http.dart' as http;

 part 'electrum_wallet.g.dart';

@@ -53,17 +53,16 @@ abstract class ElectrumWalletBase
      required WalletInfo walletInfo,
      required Box<UnspentCoinsInfo> unspentCoinsInfo,
      required this.networkType,
-      required this.mnemonic,
-      required Uint8List seedBytes,
+      String? xpub,
+      String? mnemonic,
+      Uint8List? seedBytes,
      this.passphrase,
      List<BitcoinAddressRecord>? initialAddresses,
      ElectrumClient? electrumClient,
      ElectrumBalance? initialBalance,
      CryptoCurrency? currency})
-      : hd = currency == CryptoCurrency.bch
-            ? bitcoinCashHDWallet(seedBytes)
-            : bitcoin.HDWallet.fromSeed(seedBytes, network: networkType)
-                .derivePath(walletInfo.derivationInfo?.derivationPath ?? "m/0'/0"),
+      : accountHD =
+            getAccountHDWallet(currency, networkType, seedBytes, xpub, walletInfo.derivationInfo),
        syncStatus = NotConnectedSyncStatus(),
        _password = password,
        _feeRates = <int>[],
@@ -80,20 +79,44 @@ abstract class ElectrumWalletBase
        this.unspentCoinsInfo = unspentCoinsInfo,
        this.network = _getNetwork(networkType, currency),
        this.isTestnet = networkType == bitcoin.testnet,
+        this._mnemonic = mnemonic,
        super(walletInfo) {
    this.electrumClient = electrumClient ?? ElectrumClient();
    this.walletInfo = walletInfo;
    transactionHistory = ElectrumTransactionHistory(walletInfo: walletInfo, password: password);
  }

+  static bitcoin.HDWallet getAccountHDWallet(
+      CryptoCurrency? currency,
+      bitcoin.NetworkType networkType,
+      Uint8List? seedBytes,
+      String? xpub,
+      DerivationInfo? derivationInfo) {
+    if (seedBytes == null && xpub == null) {
+      throw Exception(
+          "To create a Wallet you need either a seed or an xpub. This should not happen");
+    }
+
+    if (seedBytes != null) {
+      return currency == CryptoCurrency.bch
+          ? bitcoinCashHDWallet(seedBytes)
+          : bitcoin.HDWallet.fromSeed(seedBytes, network: networkType)
+              .derivePath(_hardenedDerivationPath(derivationInfo?.derivationPath ?? "m/0'"));
+    }
+
+    return bitcoin.HDWallet.fromBase58(xpub!);
+  }
+
  static bitcoin.HDWallet bitcoinCashHDWallet(Uint8List seedBytes) =>
-      bitcoin.HDWallet.fromSeed(seedBytes).derivePath("m/44'/145'/0'/0");
+      bitcoin.HDWallet.fromSeed(seedBytes).derivePath("m/44'/145'/0'");

  static int estimatedTransactionSize(int inputsCount, int outputsCounts) =>
      inputsCount * 68 + outputsCounts * 34 + 10;

-  final bitcoin.HDWallet hd;
-  final String mnemonic;
+  final bitcoin.HDWallet accountHD;
+  final String? _mnemonic;
+
+  bitcoin.HDWallet get hd => accountHD.derive(0);
  final String? passphrase;

  @override
@@ -123,10 +146,10 @@ abstract class ElectrumWalletBase
      .map((addr) => scriptHash(addr.address, network: network))
      .toList();

-  String get xpub => hd.base58!;
+  String get xpub => accountHD.base58!;

  @override
-  String get seed => mnemonic;
+  String? get seed => _mnemonic;

  bitcoin.NetworkType networkType;
  BasedUtxoNetwork network;
@@ -203,7 +226,9 @@ abstract class ElectrumWalletBase
    int credentialsAmount = 0,
  }) async {
    final utxos = <UtxoWithAddress>[];
-    List<ECPrivate> privateKeys = [];
+    final privateKeys = <ECPrivate>[];
+    final publicKeys = <String, PublicKeyWithDerivationPath>{};
+
    int allInputsAmount = 0;

    bool spendsUnconfirmedTX = false;
@@ -217,12 +242,22 @@ abstract class ElectrumWalletBase
        allInputsAmount += utx.value;

        final address = addressTypeFromStr(utx.address, network);
-        final privkey = generateECPrivate(
-            hd: utx.bitcoinAddressRecord.isHidden ? walletAddresses.sideHd : walletAddresses.mainHd,
-            index: utx.bitcoinAddressRecord.index,
-            network: network);
+        final hd =
+            utx.bitcoinAddressRecord.isHidden ? walletAddresses.sideHd : walletAddresses.mainHd;
+        final derivationPath =
+            "${_hardenedDerivationPath(walletInfo.derivationInfo?.derivationPath ?? "m/0'")}"
+            "/${utx.bitcoinAddressRecord.isHidden ? "1" : "0"}"
+            "/${utx.bitcoinAddressRecord.index}";
+        final pubKeyHex = hd.derive(utx.bitcoinAddressRecord.index).pubKey!;

-        privateKeys.add(privkey);
+        publicKeys[address.pubKeyHash()] = PublicKeyWithDerivationPath(pubKeyHex, derivationPath);
+
+        if (!walletInfo.isHardwareWallet) {
+          final privkey =
+              generateECPrivate(hd: hd, index: utx.bitcoinAddressRecord.index, network: network);
+
+          privateKeys.add(privkey);
+        }

        utxos.add(
          UtxoWithAddress(
@@ -233,7 +268,7 @@ abstract class ElectrumWalletBase
              scriptType: _getScriptType(address),
            ),
            ownerDetails: UtxoAddressDetails(
-              publicKey: privkey.getPublic().toHex(),
+              publicKey: pubKeyHex,
              address: address,
            ),
          ),
@@ -294,6 +329,7 @@ abstract class ElectrumWalletBase
    return EstimatedTxResult(
      utxos: utxos,
      privateKeys: privateKeys,
+      publicKeys: publicKeys,
      fee: fee,
      amount: amount,
      isSendAll: true,
@@ -312,7 +348,9 @@ abstract class ElectrumWalletBase
    bool? useUnconfirmed,
  }) async {
    final utxos = <UtxoWithAddress>[];
-    List<ECPrivate> privateKeys = [];
+    final privateKeys = <ECPrivate>[];
+    final publicKeys = <String, PublicKeyWithDerivationPath>{};
+
    int allInputsAmount = 0;
    bool spendsUnconfirmedTX = false;

@@ -332,12 +370,23 @@ abstract class ElectrumWalletBase
      leftAmount = leftAmount - utx.value;

      final address = addressTypeFromStr(utx.address, network);
-      final privkey = generateECPrivate(
-          hd: utx.bitcoinAddressRecord.isHidden ? walletAddresses.sideHd : walletAddresses.mainHd,
-          index: utx.bitcoinAddressRecord.index,
-          network: network);

-      privateKeys.add(privkey);
+      final hd =
+          utx.bitcoinAddressRecord.isHidden ? walletAddresses.sideHd : walletAddresses.mainHd;
+      final derivationPath =
+          "${_hardenedDerivationPath(walletInfo.derivationInfo?.derivationPath ?? "m/0'")}"
+          "/${utx.bitcoinAddressRecord.isHidden ? "1" : "0"}"
+          "/${utx.bitcoinAddressRecord.index}";
+      final pubKeyHex = hd.derive(utx.bitcoinAddressRecord.index).pubKey!;
+
+      publicKeys[address.pubKeyHash()] = PublicKeyWithDerivationPath(pubKeyHex, derivationPath);
+
+      if (!walletInfo.isHardwareWallet) {
+        final privkey =
+            generateECPrivate(hd: hd, index: utx.bitcoinAddressRecord.index, network: network);
+
+        privateKeys.add(privkey);
+      }

      utxos.add(
        UtxoWithAddress(
@@ -348,7 +397,7 @@ abstract class ElectrumWalletBase
            scriptType: _getScriptType(address),
          ),
          ownerDetails: UtxoAddressDetails(
-            publicKey: privkey.getPublic().toHex(),
+            publicKey: pubKeyHex,
            address: address,
          ),
        ),
@@ -490,6 +539,7 @@ abstract class ElectrumWalletBase
    return EstimatedTxResult(
      utxos: utxos,
      privateKeys: privateKeys,
+      publicKeys: publicKeys,
      fee: fee,
      amount: amount,
      hasChange: true,
@@ -557,6 +607,35 @@ abstract class ElectrumWalletBase
        );
      }

+      if (walletInfo.isHardwareWallet) {
+        final transaction = await buildHardwareWalletTransaction(
+          utxos: estimatedTx.utxos,
+          outputs: outputs,
+          publicKeys: estimatedTx.publicKeys,
+          fee: BigInt.from(estimatedTx.fee),
+          network: network,
+          memo: estimatedTx.memo,
+          outputOrdering: BitcoinOrdering.none,
+          enableRBF: true,
+        );
+
+        return PendingBitcoinTransaction(
+          transaction,
+          type,
+          electrumClient: electrumClient,
+          amount: estimatedTx.amount,
+          fee: estimatedTx.fee,
+          feeRate: feeRateInt.toString(),
+          network: network,
+          hasChange: estimatedTx.hasChange,
+          isSendAll: estimatedTx.isSendAll,
+          hasTaprootInputs: false, // ToDo: (Konsti) Support Taproot
+        )..addListener((transaction) async {
+            transactionHistory.addOne(transaction);
+            await updateBalance();
+          });
+      }
+
      BasedBitcoinTransacationBuilder txb;
      if (network is BitcoinCashNetwork) {
        txb = ForkedTransactionBuilder(
@@ -618,8 +697,22 @@ abstract class ElectrumWalletBase
    }
  }

+  Future<BtcTransaction> buildHardwareWalletTransaction({
+    required List<BitcoinBaseOutput> outputs,
+    required BigInt fee,
+    required BasedUtxoNetwork network,
+    required List<UtxoWithAddress> utxos,
+    required Map<String, PublicKeyWithDerivationPath> publicKeys,
+    String? memo,
+    bool enableRBF = false,
+    BitcoinOrdering inputOrdering = BitcoinOrdering.bip69,
+    BitcoinOrdering outputOrdering = BitcoinOrdering.bip69,
+  }) async =>
+      throw UnimplementedError();
+
  String toJSON() => json.encode({
-        'mnemonic': mnemonic,
+        'mnemonic': _mnemonic,
+        'xpub': xpub,
        'passphrase': passphrase ?? '',
        'account_index': walletAddresses.currentReceiveAddressIndexByType,
        'change_address_index': walletAddresses.currentChangeAddressIndexByType,
@@ -1263,7 +1356,7 @@ abstract class ElectrumWalletBase
  void setExceptionHandler(void Function(FlutterErrorDetails) onError) => _onError = onError;

  @override
-  String signMessage(String message, {String? address = null}) {
+  Future<String> signMessage(String message, {String? address = null}) async {
    final index = address != null
        ? walletAddresses.allAddresses.firstWhere((element) => element.address == address).index
        : null;
@@ -1286,6 +1379,9 @@ abstract class ElectrumWalletBase

    return BitcoinNetwork.mainnet;
  }
+
+  static String _hardenedDerivationPath(String derivationPath) =>
+      derivationPath.substring(0, derivationPath.lastIndexOf("'") + 1);
 }

 class EstimateTxParams {
@@ -1307,6 +1403,7 @@ class EstimatedTxResult {
  EstimatedTxResult({
    required this.utxos,
    required this.privateKeys,
+    required this.publicKeys,
    required this.fee,
    required this.amount,
    required this.hasChange,
@@ -1317,6 +1414,7 @@ class EstimatedTxResult {

  final List<UtxoWithAddress> utxos;
  final List<ECPrivate> privateKeys;
+  final Map<String, PublicKeyWithDerivationPath> publicKeys; // PubKey to derivationPath
  final int fee;
  final int amount;
  final bool hasChange;
@@ -1325,6 +1423,13 @@ class EstimatedTxResult {
  final bool spendsUnconfirmedTX;
 }

+class PublicKeyWithDerivationPath {
+  const PublicKeyWithDerivationPath(this.publicKey, this.derivationPath);
+
+  final String derivationPath;
+  final String publicKey;
+}
+
 BitcoinBaseAddress addressTypeFromStr(String address, BasedUtxoNetwork network) {
  if (network is BitcoinCashNetwork) {
    if (!address.startsWith("bitcoincash:") &&
@@ -13,6 +13,7 @@ class ElectrumWalletSnapshot {
    required this.type,
    required this.password,
    required this.mnemonic,
+    required this.xpub,
    required this.addresses,
    required this.balance,
    required this.regularAddressIndex,
@@ -28,7 +29,8 @@ class ElectrumWalletSnapshot {
  final WalletType type;
  final String? addressPageType;

-  String mnemonic;
+  String? mnemonic;
+  String? xpub;
  List<BitcoinAddressRecord> addresses;
  ElectrumBalance balance;
  Map<String, int> regularAddressIndex;
@@ -43,7 +45,8 @@ class ElectrumWalletSnapshot {
    final jsonSource = await read(path: path, password: password);
    final data = json.decode(jsonSource) as Map;
    final addressesTmp = data['addresses'] as List? ?? <Object>[];
-    final mnemonic = data['mnemonic'] as String;
+    final mnemonic = data['mnemonic'] as String?;
+    final xpub = data['xpub'] as String?;
    final passphrase = data['passphrase'] as String? ?? '';
    final addresses = addressesTmp
        .whereType<String>()
@@ -79,6 +82,7 @@ class ElectrumWalletSnapshot {
      password: password,
      passphrase: passphrase,
      mnemonic: mnemonic,
+      xpub: xpub,
      addresses: addresses,
      balance: balance,
      regularAddressIndex: regularAddressIndexByType,
@@ -50,7 +50,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
      initialRegularAddressIndex: initialRegularAddressIndex,
      initialChangeAddressIndex: initialChangeAddressIndex,
      mainHd: hd,
-      sideHd: bitcoin.HDWallet.fromSeed(seedBytes, network: networkType).derivePath("m/0'/1"),
+      sideHd: accountHD.derive(1),
      network: network,
    );
    autorun((_) {
@@ -106,13 +106,13 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
    final snp =
        await ElectrumWalletSnapshot.load(name, walletInfo.type, password, LitecoinNetwork.mainnet);
    return LitecoinWallet(
-      mnemonic: snp.mnemonic,
+      mnemonic: snp.mnemonic!,
      password: password,
      walletInfo: walletInfo,
      unspentCoinsInfo: unspentCoinsInfo,
      initialAddresses: snp.addresses,
      initialBalance: snp.balance,
-      seedBytes: await mnemonicToSeedBytes(snp.mnemonic),
+      seedBytes: await mnemonicToSeedBytes(snp.mnemonic!),
      initialRegularAddressIndex: snp.regularAddressIndex,
      initialChangeAddressIndex: snp.changeAddressIndex,
      addressPageType: snp.addressPageType,
@@ -16,7 +16,7 @@ import 'package:bip39/bip39.dart' as bip39;
 class LitecoinWalletService extends WalletService<
    BitcoinNewWalletCredentials,
    BitcoinRestoreWalletFromSeedCredentials,
-    BitcoinRestoreWalletFromWIFCredentials> {
+    BitcoinRestoreWalletFromWIFCredentials,BitcoinNewWalletCredentials> {
  LitecoinWalletService(this.walletInfoSource, this.unspentCoinsInfoSource);

  final Box<WalletInfo> walletInfoSource;
@@ -94,6 +94,11 @@ class LitecoinWalletService extends WalletService<
    await walletInfoSource.put(currentWalletInfo.key, newWalletInfo);
  }

+  @override
+  Future<LitecoinWallet> restoreFromHardwareWallet(BitcoinNewWalletCredentials credentials) {
+    throw UnimplementedError("Restoring a Litecoin wallet from a hardware wallet is not yet supported!");
+  }
+
  @override
  Future<LitecoinWallet> restoreFromKeys(
          BitcoinRestoreWalletFromWIFCredentials credentials, {bool? isTestnet}) async =>
@@ -0,0 +1,96 @@
+import 'dart:typed_data';
+
+import 'package:bitcoin_base/bitcoin_base.dart';
+import 'package:convert/convert.dart';
+import 'package:ledger_bitcoin/psbt.dart';
+
+class PSBTTransactionBuild {
+  final PsbtV2 psbt = PsbtV2();
+
+  PSBTTransactionBuild(
+      {required List<PSBTReadyUtxoWithAddress> inputs, required List<BitcoinBaseOutput> outputs, bool enableRBF = true}) {
+    psbt.setGlobalTxVersion(2);
+    psbt.setGlobalInputCount(inputs.length);
+    psbt.setGlobalOutputCount(outputs.length);
+
+    for (var i = 0; i < inputs.length; i++) {
+      final input = inputs[i];
+
+      print(input.utxo.isP2tr());
+      print(input.utxo.isSegwit());
+      print(input.utxo.isP2shSegwit());
+
+      psbt.setInputPreviousTxId(i, Uint8List.fromList(hex.decode(input.utxo.txHash).reversed.toList()));
+      psbt.setInputOutputIndex(i, input.utxo.vout);
+      psbt.setInputSequence(i, enableRBF ? 0x1 : 0xffffffff);
+
+
+      if (input.utxo.isSegwit()) {
+        setInputSegwit(i, input);
+      } else if (input.utxo.isP2shSegwit()) {
+        setInputP2shSegwit(i, input);
+      } else if (input.utxo.isP2tr()) {
+        // ToDo: (Konsti) Handle Taproot Inputs
+      } else {
+        setInputP2pkh(i, input);
+      }
+    }
+
+    for (var i = 0; i < outputs.length; i++) {
+      final output = outputs[i];
+
+      if (output is BitcoinOutput) {
+        psbt.setOutputScript(i, Uint8List.fromList(output.address.toScriptPubKey().toBytes()));
+        psbt.setOutputAmount(i, output.value.toInt());
+      }
+    }
+  }
+
+  void setInputP2pkh(int i, PSBTReadyUtxoWithAddress input) {
+    psbt.setInputNonWitnessUtxo(i, Uint8List.fromList(hex.decode(input.rawTx)));
+    psbt.setInputBip32Derivation(
+        i,
+        Uint8List.fromList(hex.decode(input.ownerPublicKey)),
+        input.ownerMasterFingerprint,
+        BIPPath.fromString(input.ownerDerivationPath).toPathArray());
+  }
+
+  void setInputSegwit(int i, PSBTReadyUtxoWithAddress input) {
+    psbt.setInputNonWitnessUtxo(i, Uint8List.fromList(hex.decode(input.rawTx)));
+    psbt.setInputBip32Derivation(
+        i,
+        Uint8List.fromList(hex.decode(input.ownerPublicKey)),
+        input.ownerMasterFingerprint,
+        BIPPath.fromString(input.ownerDerivationPath).toPathArray());
+
+    psbt.setInputWitnessUtxo(i, Uint8List.fromList(bigIntToUint64LE(input.utxo.value)),
+        Uint8List.fromList(input.ownerDetails.address.toScriptPubKey().toBytes()));
+  }
+
+  void setInputP2shSegwit(int i, PSBTReadyUtxoWithAddress input) {
+    psbt.setInputNonWitnessUtxo(i, Uint8List.fromList(hex.decode(input.rawTx)));
+    psbt.setInputBip32Derivation(i, Uint8List.fromList(hex.decode(input.ownerPublicKey)),
+        input.ownerMasterFingerprint, BIPPath.fromString(input.ownerDerivationPath).toPathArray());
+
+    psbt.setInputRedeemScript(
+        i, Uint8List.fromList(input.ownerDetails.address.toScriptPubKey().toBytes()));
+    psbt.setInputWitnessUtxo(i, Uint8List.fromList(bigIntToUint64LE(input.utxo.value)),
+        Uint8List.fromList(input.ownerDetails.address.toScriptPubKey().toBytes()));
+  }
+}
+
+class PSBTReadyUtxoWithAddress extends UtxoWithAddress {
+  final String rawTx;
+  final String ownerDerivationPath;
+  final Uint8List ownerMasterFingerprint;
+  final String ownerPublicKey;
+
+  PSBTReadyUtxoWithAddress({
+    required super.utxo,
+    required this.rawTx,
+    required super.ownerDetails,
+    required this.ownerDerivationPath,
+    required this.ownerMasterFingerprint,
+    required this.ownerPublicKey,
+  });
+}
@@ -260,6 +260,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "2.2.4"
+  dart_varuint_bitcoin:
+    dependency: transitive
+    description:
+      name: dart_varuint_bitcoin
+      sha256: "4f0ccc9733fb54148b9d3688eea822b7aaabf5cc00025998f8c09a1d45b31b4b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.3"
  encrypt:
    dependency: transitive
    description:
@@ -313,6 +321,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "2.2.1+1"
+  flutter_reactive_ble:
+    dependency: transitive
+    description:
+      name: flutter_reactive_ble
+      sha256: "247e2efa76de203d1ba11335c13754b5b9d0504b5423e5b0c93a600f016b24e0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.3.1"
  flutter_test:
    dependency: "direct dev"
    description: flutter
@@ -326,6 +342,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "4.0.0"
+  functional_data:
+    dependency: transitive
+    description:
+      name: functional_data
+      sha256: aefdec4365452283b2a7cf420a3169654d51d3e9553069a22d76680d7a9d7c3d
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
  glob:
    dependency: transitive
    description:
@@ -422,6 +446,31 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "4.8.1"
+  ledger_bitcoin:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: HEAD
+      resolved-ref: b6ed573cbeb57d5f0d39dfe4254bf9d15b620ab6
+      url: "https://github.com/cake-tech/ledger-bitcoin.git"
+    source: git
+    version: "0.0.1"
+  ledger_flutter:
+    dependency: "direct main"
+    description:
+      name: ledger_flutter
+      sha256: f1680060ed6ff78f275837e0024ccaf667715a59ba7aa29fa7354bc7752e71c8
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
+  ledger_usb:
+    dependency: transitive
+    description:
+      name: ledger_usb
+      sha256: "52c92d03a4cffe06c82921c8e2f79f3cdad6e1cf78e1e9ca35444196ff8f14c2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
  logging:
    dependency: transitive
    description:
@@ -582,6 +631,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "1.5.1"
+  protobuf:
+    dependency: transitive
+    description:
+      name: protobuf
+      sha256: "01dd9bd0fa02548bf2ceee13545d4a0ec6046459d847b6b061d8a27237108a08"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
  provider:
    dependency: transitive
    description:
@@ -606,6 +663,22 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "1.2.3"
+  reactive_ble_mobile:
+    dependency: transitive
+    description:
+      name: reactive_ble_mobile
+      sha256: "9ec2b4c9c725e439950838d551579750060258fbccd5536d0543b4d07d225798"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.3.1"
+  reactive_ble_platform_interface:
+    dependency: transitive
+    description:
+      name: reactive_ble_platform_interface
+      sha256: "632c92401a2d69c9b94bd48f8fd47488a7013f3d1f9b291884350291a4a81813"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.3.1"
  rxdart:
    dependency: "direct main"
    description:
@@ -788,5 +861,5 @@ packages:
    source: hosted
    version: "3.1.2"
 sdks:
-  dart: ">=3.0.0 <4.0.0"
+  dart: ">=3.0.6 <4.0.0"
  flutter: ">=3.10.0"
@@ -35,6 +35,10 @@ dependencies:
      url: https://github.com/cake-tech/bitcoin_base.git
      ref: cake-update-v2
  blockchain_utils: ^2.1.1
+  ledger_flutter: ^1.0.1
+  ledger_bitcoin:
+    git:
+      url: https://github.com/cake-tech/ledger-bitcoin.git

 dev_dependencies:
  flutter_test: