Add restore from private key to Ethereum (#1055)

* Add restore from private key to Ethereum Add restore from QR code for Ethereum in both seeds/keys * Add node network issue to ignored errors [skip ci]
2024-11-16 17:27:37 +00:00 · 2023-08-23 15:33:20 +03:00 · 2023-08-23 15:33:20 +03:00 · 3577730de8
commit 3577730de8
parent 43cf8a896e
24 changed files with 250 additions and 433 deletions
--- a/cw_core/lib/wallet_base.dart
+++ b/cw_core/lib/wallet_base.dart
@ -42,7 +42,9 @@ abstract class WalletBase<

  set syncStatus(SyncStatus status);

-  String get seed;
+  String? get seed;
+
+  String? get privateKey => null;

  Object get keys;

--- a/cw_ethereum/lib/ethereum_wallet.dart
+++ b/cw_ethereum/lib/ethereum_wallet.dart
@ -44,12 +44,14 @@ abstract class EthereumWalletBase
    with Store {
  EthereumWalletBase({
    required WalletInfo walletInfo,
-    required String mnemonic,
+    String? mnemonic,
+    String? privateKey,
    required String password,
    ERC20Balance? initialBalance,
  })  : syncStatus = NotConnectedSyncStatus(),
        _password = password,
        _mnemonic = mnemonic,
+        _hexPrivateKey = privateKey,
        _isTransactionUpdating = false,
        _client = EthereumClient(),
        walletAddresses = EthereumWalletAddresses(walletInfo),
@ -66,12 +68,13 @@ abstract class EthereumWalletBase
    _sharedPrefs.complete(SharedPreferences.getInstance());
  }

-  final String _mnemonic;
+  final String? _mnemonic;
+  final String? _hexPrivateKey;
  final String _password;

  late final Box<Erc20Token> erc20TokensBox;

-  late final EthPrivateKey _privateKey;
+  late final EthPrivateKey _ethPrivateKey;

  late EthereumClient _client;

@ -99,8 +102,12 @@ abstract class EthereumWalletBase
    erc20TokensBox = await CakeHive.openBox<Erc20Token>(Erc20Token.boxName);
    await walletAddresses.init();
    await transactionHistory.init();
-    _privateKey = await getPrivateKey(_mnemonic, _password);
-    walletAddresses.address = _privateKey.address.toString();
+    _ethPrivateKey = await getPrivateKey(
+      mnemonic: _mnemonic,
+      privateKey: _hexPrivateKey,
+      password: _password,
+    );
+    walletAddresses.address = _ethPrivateKey.address.toString();
    await save();
  }

@ -108,8 +115,7 @@ abstract class EthereumWalletBase
  int calculateEstimatedFee(TransactionPriority priority, int? amount) {
    try {
      if (priority is EthereumTransactionPriority) {
-        final priorityFee =
-            EtherAmount.fromUnitAndValue(EtherUnit.gwei, priority.tip).getInWei.toInt();
+        final priorityFee = EtherAmount.fromInt(EtherUnit.gwei, priority.tip).getInWei.toInt();
        return (_gasPrice! + priorityFee) * (_estimatedGas ?? 0);
      }

@ -142,7 +148,7 @@ abstract class EthereumWalletBase
        throw Exception("Ethereum Node connection failed");
      }

-      _client.setListeners(_privateKey.address, _onNewTransaction);
+      _client.setListeners(_ethPrivateKey.address, _onNewTransaction);

      _setTransactionUpdateTimer();

@ -202,7 +208,7 @@ abstract class EthereumWalletBase
    }

    final pendingEthereumTransaction = await _client.signTransaction(
-      privateKey: _privateKey,
+      privateKey: _ethPrivateKey,
      toAddress: _credentials.outputs.first.isParsedAddress
          ? _credentials.outputs.first.extractedAddress!
          : _credentials.outputs.first.address,
@ -240,7 +246,7 @@ abstract class EthereumWalletBase

  @override
  Future<Map<String, EthereumTransactionInfo>> fetchTransactions() async {
-    final address = _privateKey.address.hex;
+    final address = _ethPrivateKey.address.hex;
    final transactions = await _client.fetchTransactions(address);

    final List<Future<List<EthereumTransactionModel>>> erc20TokensTransactions = [];
@ -300,7 +306,10 @@ abstract class EthereumWalletBase
  }

  @override
-  String get seed => _mnemonic;
+  String? get seed => _mnemonic;
+
+  @override
+  String get privateKey => HEX.encode(_ethPrivateKey.privateKey);

  @action
  @override
@ -327,6 +336,7 @@ abstract class EthereumWalletBase

  String toJSON() => json.encode({
        'mnemonic': _mnemonic,
+        'private_key': privateKey,
        'balance': balance[currency]!.toJSON(),
      });

@ -338,13 +348,15 @@ abstract class EthereumWalletBase
    final path = await pathForWallet(name: name, type: walletInfo.type);
    final jsonSource = await read(path: path, password: password);
    final data = json.decode(jsonSource) as Map;
-    final mnemonic = data['mnemonic'] as String;
+    final mnemonic = data['mnemonic'] as String?;
+    final privateKey = data['private_key'] as String?;
    final balance = ERC20Balance.fromJSON(data['balance'] as String) ?? ERC20Balance(BigInt.zero);

    return EthereumWallet(
      walletInfo: walletInfo,
      password: password,
      mnemonic: mnemonic,
+      privateKey: privateKey,
      initialBalance: balance,
    );
  }
@ -357,7 +369,7 @@ abstract class EthereumWalletBase
  }

  Future<ERC20Balance> _fetchEthBalance() async {
-    final balance = await _client.getBalance(_privateKey.address);
+    final balance = await _client.getBalance(_ethPrivateKey.address);
    return ERC20Balance(balance.getInWei);
  }

@ -366,7 +378,7 @@ abstract class EthereumWalletBase
      try {
        if (token.enabled) {
          balance[token] = await _client.fetchERC20Balances(
-            _privateKey.address,
+            _ethPrivateKey.address,
            token.contractAddress,
          );
        } else {
@ -376,8 +388,15 @@ abstract class EthereumWalletBase
    }
  }

-  Future<EthPrivateKey> getPrivateKey(String mnemonic, String password) async {
-    final seed = bip39.mnemonicToSeed(mnemonic);
+  Future<EthPrivateKey> getPrivateKey(
+      {String? mnemonic, String? privateKey, required String password}) async {
+    assert(mnemonic != null || privateKey != null);
+
+    if (privateKey != null) {
+      return EthPrivateKey.fromHex(privateKey);
+    }
+
+    final seed = bip39.mnemonicToSeed(mnemonic!);

    final root = bip32.BIP32.fromSeed(seed);

@ -413,7 +432,7 @@ abstract class EthereumWalletBase

    if (_token.enabled) {
      balance[_token] = await _client.fetchERC20Balances(
-        _privateKey.address,
+        _ethPrivateKey.address,
        _token.contractAddress,
      );
    } else {
--- a/cw_ethereum/lib/ethereum_wallet_creation_credentials.dart
+++ b/cw_ethereum/lib/ethereum_wallet_creation_credentials.dart
@ -8,16 +8,22 @@ class EthereumNewWalletCredentials extends WalletCredentials {

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

  final String mnemonic;
 }

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

-  final String wif;
+  final String privateKey;
 }
--- a/cw_ethereum/lib/ethereum_wallet_service.dart
+++ b/cw_ethereum/lib/ethereum_wallet_service.dart
@ -13,7 +13,7 @@ import 'package:bip39/bip39.dart' as bip39;
 import 'package:collection/collection.dart';

 class EthereumWalletService extends WalletService<EthereumNewWalletCredentials,
-    EthereumRestoreWalletFromSeedCredentials, EthereumRestoreWalletFromWIFCredentials> {
+    EthereumRestoreWalletFromSeedCredentials, EthereumRestoreWalletFromPrivateKey> {
  EthereumWalletService(this.walletInfoSource);

  final Box<WalletInfo> walletInfoSource;
@ -66,8 +66,18 @@ class EthereumWalletService extends WalletService<EthereumNewWalletCredentials,
  }

  @override
-  Future<EthereumWallet> restoreFromKeys(credentials) {
-    throw UnimplementedError();
+  Future<EthereumWallet> restoreFromKeys(EthereumRestoreWalletFromPrivateKey credentials) async {
+    final wallet = EthereumWallet(
+      password: credentials.password!,
+      privateKey: credentials.privateKey,
+      walletInfo: credentials.walletInfo!,
+    );
+
+    await wallet.init();
+    wallet.addInitialTokens();
+    await wallet.save();
+
+    return wallet;
  }

  @override
--- a/ios/Podfile.lock
+++ b/ios/Podfile.lock
@ -174,12 +174,12 @@ DEPENDENCIES:
  - in_app_review (from `.symlinks/plugins/in_app_review/ios`)
  - local_auth_ios (from `.symlinks/plugins/local_auth_ios/ios`)
  - package_info (from `.symlinks/plugins/package_info/ios`)
-  - path_provider_foundation (from `.symlinks/plugins/path_provider_foundation/ios`)
+  - path_provider_foundation (from `.symlinks/plugins/path_provider_foundation/darwin`)
  - permission_handler_apple (from `.symlinks/plugins/permission_handler_apple/ios`)
  - platform_device_id (from `.symlinks/plugins/platform_device_id/ios`)
  - sensitive_clipboard (from `.symlinks/plugins/sensitive_clipboard/ios`)
  - share_plus (from `.symlinks/plugins/share_plus/ios`)
-  - shared_preferences_foundation (from `.symlinks/plugins/shared_preferences_foundation/ios`)
+  - shared_preferences_foundation (from `.symlinks/plugins/shared_preferences_foundation/darwin`)
  - uni_links (from `.symlinks/plugins/uni_links/ios`)
  - UnstoppableDomainsResolution (~> 4.0.0)
  - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
@ -236,7 +236,7 @@ EXTERNAL SOURCES:
  package_info:
    :path: ".symlinks/plugins/package_info/ios"
  path_provider_foundation:
-    :path: ".symlinks/plugins/path_provider_foundation/ios"
+    :path: ".symlinks/plugins/path_provider_foundation/darwin"
  permission_handler_apple:
    :path: ".symlinks/plugins/permission_handler_apple/ios"
  platform_device_id:
@ -246,7 +246,7 @@ EXTERNAL SOURCES:
  share_plus:
    :path: ".symlinks/plugins/share_plus/ios"
  shared_preferences_foundation:
-    :path: ".symlinks/plugins/shared_preferences_foundation/ios"
+    :path: ".symlinks/plugins/shared_preferences_foundation/darwin"
  uni_links:
    :path: ".symlinks/plugins/uni_links/ios"
  url_launcher_ios:
--- a/lib/di.dart
+++ b/lib/di.dart
@ -177,8 +177,6 @@ import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
-import 'package:cake_wallet/view_model/wallet_restoration_from_seed_vm.dart';
-import 'package:cake_wallet/view_model/wallet_restoration_from_keys_vm.dart';
 import 'package:cake_wallet/core/wallet_creation_service.dart';
 import 'package:cake_wallet/store/app_store.dart';
 import 'package:cw_core/wallet_type.dart';
@ -320,25 +318,6 @@ Future setup({
      getIt.get<AppStore>(), getIt.get<WalletCreationService>(param1: type), _walletInfoSource,
      type: type));

-  getIt.registerFactoryParam<WalletRestorationFromSeedVM, List, void>((args, _) {
-    final type = args.first as WalletType;
-    final language = args[1] as String;
-    final mnemonic = args[2] as String;
-
-    return WalletRestorationFromSeedVM(
-        getIt.get<AppStore>(), getIt.get<WalletCreationService>(param1: type), _walletInfoSource,
-        type: type, language: language, seed: mnemonic);
-  });
-
-  getIt.registerFactoryParam<WalletRestorationFromKeysVM, List, void>((args, _) {
-    final type = args.first as WalletType;
-    final language = args[1] as String;
-
-    return WalletRestorationFromKeysVM(
-        getIt.get<AppStore>(), getIt.get<WalletCreationService>(param1: type), _walletInfoSource,
-        type: type, language: language);
-  });
-
  getIt.registerFactoryParam<WalletRestorationFromQRVM, WalletType, void>((WalletType type, _) {
    return WalletRestorationFromQRVM(getIt.get<AppStore>(),
        getIt.get<WalletCreationService>(param1: type), _walletInfoSource, type);
--- a/lib/ethereum/cw_ethereum.dart
+++ b/lib/ethereum/cw_ethereum.dart
@ -22,6 +22,14 @@ class CWEthereum extends Ethereum {
  }) =>
      EthereumRestoreWalletFromSeedCredentials(name: name, password: password, mnemonic: mnemonic);

+  @override
+  WalletCredentials createEthereumRestoreWalletFromPrivateKey({
+    required String name,
+    required String privateKey,
+    required String password,
+  }) =>
+      EthereumRestoreWalletFromPrivateKey(name: name, password: password, privateKey: privateKey);
+
  @override
  String getAddress(WalletBase wallet) => (wallet as EthereumWallet).walletAddresses.address;

--- a/lib/router.dart
+++ b/lib/router.dart
@ -57,7 +57,6 @@ import 'package:cake_wallet/routes.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/di.dart';
 import 'package:cake_wallet/view_model/wallet_new_vm.dart';
-import 'package:cake_wallet/view_model/wallet_restoration_from_seed_vm.dart';
 import 'package:cake_wallet/exchange/trade.dart';
 import 'package:cw_core/transaction_info.dart';
 import 'package:cw_core/wallet_type.dart';
@ -80,7 +79,6 @@ import 'package:cake_wallet/src/screens/monero_accounts/monero_account_edit_or_c
 import 'package:cake_wallet/src/screens/contact/contact_list_page.dart';
 import 'package:cake_wallet/src/screens/contact/contact_page.dart';
 import 'package:cake_wallet/src/screens/wallet_keys/wallet_keys_page.dart';
-import 'package:cake_wallet/src/screens/restore/restore_wallet_from_seed_details.dart';
 import 'package:cake_wallet/src/screens/exchange/exchange_page.dart';
 import 'package:cake_wallet/src/screens/rescan/rescan_page.dart';
 import 'package:cake_wallet/src/screens/faq/faq_page.dart';
@ -398,16 +396,6 @@ Route<dynamic> createRoute(RouteSettings settings) {
          builder: (_) =>
              getIt.get<BuyWebViewPage>(param1: args));

-    case Routes.restoreWalletFromSeedDetails:
-      final args = settings.arguments as List;
-      final walletRestorationFromSeedVM =
-          getIt.get<WalletRestorationFromSeedVM>(param1: args);
-
-      return CupertinoPageRoute<void>(
-          fullscreenDialog: true,
-          builder: (_) => RestoreWalletFromSeedDetailsPage(
-              walletRestorationFromSeedVM: walletRestorationFromSeedVM));
-
    case Routes.exchange:
      return CupertinoPageRoute<void>(
          fullscreenDialog: true,
--- a/lib/routes.dart
+++ b/lib/routes.dart
@ -30,7 +30,6 @@ class Routes {
  static const tradeDetails = '/trade_details';
  static const exchangeFunds = '/exchange_funds';
  static const exchangeTrade = '/exchange_trade';
-  static const restoreWalletFromSeedDetails = '/restore_from_seed_details';
  static const exchange = '/exchange';
  static const settings = '/settings';
  static const desktop_settings_page = '/desktop_settings_page';
--- a/lib/src/screens/restore/restore_wallet_from_seed_details.dart
+++ b/lib/src/screens/restore/restore_wallet_from_seed_details.dart
@ -1,145 +0,0 @@
-import 'package:cake_wallet/utils/show_pop_up.dart';
-import 'package:mobx/mobx.dart';
-import 'package:flutter/material.dart';
-import 'package:flutter_mobx/flutter_mobx.dart';
-import 'package:cake_wallet/generated/i18n.dart';
-import 'package:cake_wallet/core/wallet_name_validator.dart';
-import 'package:cake_wallet/core/execution_state.dart';
-import 'package:cake_wallet/src/screens/base_page.dart';
-import 'package:cake_wallet/src/widgets/blockchain_height_widget.dart';
-import 'package:cake_wallet/src/widgets/scollable_with_bottom_section.dart';
-import 'package:cake_wallet/src/widgets/primary_button.dart';
-import 'package:cake_wallet/src/widgets/alert_with_one_action.dart';
-import 'package:cake_wallet/src/widgets/base_text_form_field.dart';
-import 'package:cake_wallet/view_model/wallet_restoration_from_seed_vm.dart';
-
-class RestoreWalletFromSeedDetailsPage extends BasePage {
-  RestoreWalletFromSeedDetailsPage(
-      {required this.walletRestorationFromSeedVM});
-
-  final WalletRestorationFromSeedVM walletRestorationFromSeedVM;
-
-  @override
-  String get title => S.current.restore_wallet_restore_description;
-
-  @override
-  Widget body(BuildContext context) => RestoreFromSeedDetailsForm(
-      walletRestorationFromSeedVM: walletRestorationFromSeedVM);
-}
-
-class RestoreFromSeedDetailsForm extends StatefulWidget {
-  RestoreFromSeedDetailsForm({required this.walletRestorationFromSeedVM});
-
-  final WalletRestorationFromSeedVM walletRestorationFromSeedVM;
-
-  @override
-  _RestoreFromSeedDetailsFormState createState() =>
-      _RestoreFromSeedDetailsFormState();
-}
-
-class _RestoreFromSeedDetailsFormState
-    extends State<RestoreFromSeedDetailsForm> {
-  final _formKey = GlobalKey<FormState>();
-  final _blockchainHeightKey = GlobalKey<BlockchainHeightState>();
-  final _nameController = TextEditingController();
-  ReactionDisposer? _stateReaction;
-
-  @override
-  void initState() {
-    _stateReaction = reaction((_) => widget.walletRestorationFromSeedVM.state,
-        (ExecutionState state) {
-      if (state is ExecutedSuccessfullyState) {
-        Navigator.of(context).popUntil((route) => route.isFirst);
-      }
-
-      if (state is FailureState) {
-        WidgetsBinding.instance.addPostFrameCallback((_) {
-          showPopUp<void>(
-              context: context,
-              builder: (BuildContext context) {
-                return AlertWithOneAction(
-                    alertTitle: S.current.restore_title_from_seed,
-                    alertContent: state.error,
-                    buttonText: S.of(context).ok,
-                    buttonAction: () => Navigator.of(context).pop());
-              });
-        });
-      }
-    });
-
-    _nameController.addListener(
-        () => widget.walletRestorationFromSeedVM.name = _nameController.text);
-    super.initState();
-  }
-
-  @override
-  void dispose() {
-    _nameController.dispose();
-    _stateReaction?.reaction.dispose();
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      padding: EdgeInsets.only(left: 24, right: 24),
-      child: ScrollableWithBottomSection(
-        contentPadding: EdgeInsets.only(bottom: 24.0),
-        content: Form(
-          key: _formKey,
-          child: Column(children: <Widget>[
-            Row(
-              children: <Widget>[
-                Flexible(
-                    child: Container(
-                  padding: EdgeInsets.only(top: 20.0),
-                  child: BaseTextFormField(
-                    controller: _nameController,
-                    hintText: S.of(context).restore_wallet_name,
-                    validator: WalletNameValidator(),
-                  ),
-                ))
-              ],
-            ),
-            if (widget.walletRestorationFromSeedVM.hasRestorationHeight) ... [
-              BlockchainHeightWidget(
-                  key: _blockchainHeightKey,
-                  onHeightChange: (height) {
-                    widget.walletRestorationFromSeedVM.height = height;
-                    print(height);
-                  }),
-              Padding(
-                padding: EdgeInsets.only(left: 40, right: 40, top: 24),
-                child: Text(
-                  S.of(context).restore_from_date_or_blockheight,
-                  textAlign: TextAlign.center,
-                  style: TextStyle(
-                      fontSize: 12,
-                      fontWeight: FontWeight.normal,
-                      color: Theme.of(context).hintColor
-                  ),
-                ),
-              )
-            ]
-          ]),
-        ),
-        bottomSectionPadding: EdgeInsets.only(bottom: 24),
-        bottomSection: Observer(builder: (_) {
-          return LoadingPrimaryButton(
-            onPressed: () {
-              if (_formKey.currentState != null && _formKey.currentState!.validate()) {
-                widget.walletRestorationFromSeedVM.create();
-              }
-            },
-            isLoading:
-                widget.walletRestorationFromSeedVM.state is IsExecutingState,
-            text: S.of(context).restore_recover,
-            color: Theme.of(context).primaryColor,
-            textColor: Colors.white,
-            isDisabled: _nameController.text.isNotEmpty,
-          );
-        }),
-      ),
-    );
-  }
-}
--- a/lib/src/screens/restore/wallet_restore_from_keys_form.dart
+++ b/lib/src/screens/restore/wallet_restore_from_keys_form.dart
@ -1,30 +1,29 @@
+import 'package:cake_wallet/src/widgets/address_text_field.dart';
 import 'package:cake_wallet/view_model/wallet_restore_view_model.dart';
 import 'package:cw_core/wallet_type.dart';
-import 'package:flutter/services.dart';
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/src/widgets/blockchain_height_widget.dart';
 import 'package:cake_wallet/src/widgets/base_text_form_field.dart';
-import 'package:cake_wallet/src/widgets/base_text_form_field.dart';
-import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/core/wallet_name_validator.dart';
 import 'package:cake_wallet/entities/generate_name.dart';
 import 'package:cake_wallet/themes/extensions/send_page_theme.dart';
+import 'package:flutter/services.dart';

 class WalletRestoreFromKeysFrom extends StatefulWidget {
  WalletRestoreFromKeysFrom({
    required this.walletRestoreViewModel,
+    required this.displayPrivateKeyField,
+    required this.onHeightOrDateEntered,
    Key? key,
-    this.onHeightOrDateEntered,})
-      : super(key: key);
+  }) : super(key: key);

-  final Function(bool)? onHeightOrDateEntered;
+  final Function(bool) onHeightOrDateEntered;
  final WalletRestoreViewModel walletRestoreViewModel;
+  final bool displayPrivateKeyField;

  @override
-  WalletRestoreFromKeysFromState createState() =>
-      WalletRestoreFromKeysFromState();
+  WalletRestoreFromKeysFromState createState() => WalletRestoreFromKeysFromState();
 }

 class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
@ -35,6 +34,7 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
        addressController = TextEditingController(),
        viewKeyController = TextEditingController(),
        spendKeyController = TextEditingController(),
+        privateKeyController = TextEditingController(),
        nameTextEditingController = TextEditingController();

  final GlobalKey<FormState> formKey;
@ -44,6 +44,18 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
  final TextEditingController viewKeyController;
  final TextEditingController spendKeyController;
  final TextEditingController nameTextEditingController;
+  final TextEditingController privateKeyController;
+
+  @override
+  void initState() {
+    super.initState();
+
+    privateKeyController.addListener(() {
+      if (privateKeyController.text.isNotEmpty) {
+        widget.onHeightOrDateEntered(true);
+      }
+    });
+  }

  @override
  void dispose() {
@ -51,6 +63,7 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
    addressController.dispose();
    viewKeyController.dispose();
    spendKeyController.dispose();
+    privateKeyController.dispose();
    super.dispose();
  }

@ -60,7 +73,8 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
      padding: EdgeInsets.only(left: 24, right: 24),
      child: Form(
        key: formKey,
-          child: Column(children: <Widget>[
+        child: Column(
+          children: <Widget>[
            Stack(
              alignment: Alignment.centerRight,
              children: [
@ -75,9 +89,8 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {

                      setState(() {
                        nameTextEditingController.text = rName;
-                        nameTextEditingController.selection =
-                            TextSelection.fromPosition(TextPosition(
-                                offset: nameTextEditingController.text.length));
+                        nameTextEditingController.selection = TextSelection.fromPosition(
+                            TextPosition(offset: nameTextEditingController.text.length));
                      });
                    },
                    icon: Container(
@ -90,7 +103,8 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
                      height: 34,
                      child: Image.asset(
                        'assets/images/refresh_icon.png',
-                        color: Theme.of(context).extension<SendPageTheme>()!.textFieldButtonIconColor,
+                        color:
+                            Theme.of(context).extension<SendPageTheme>()!.textFieldButtonIconColor,
                      ),
                    ),
                  ),
@ -98,29 +112,65 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
              ],
            ),
            Container(height: 20),
+            _restoreFromKeysFormFields(),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _restoreFromKeysFormFields() {
+    if (widget.displayPrivateKeyField) {
+      return AddressTextField(
+        controller: privateKeyController,
+        placeholder: S.of(context).private_key,
+        options: [AddressTextFieldOption.paste],
+        buttonColor: Theme.of(context).hintColor,
+        onPushPasteButton: (_) {
+          _pasteText();
+        },
+      );
+    }
+
+    return Column(
+      children: [
        BaseTextFormField(
          controller: addressController,
          keyboardType: TextInputType.multiline,
          maxLines: null,
-                hintText: S.of(context).restore_address),
+          hintText: S.of(context).restore_address,
+        ),
        Container(
          padding: EdgeInsets.only(top: 20.0),
          child: BaseTextFormField(
            controller: viewKeyController,
            hintText: S.of(context).restore_view_key_private,
-                    maxLines: null)),
+            maxLines: null,
+          ),
+        ),
        Container(
          padding: EdgeInsets.only(top: 20.0),
          child: BaseTextFormField(
            controller: spendKeyController,
            hintText: S.of(context).restore_spend_key_private,
-                    maxLines: null)),
+            maxLines: null,
+          ),
+        ),
        BlockchainHeightWidget(
          key: blockchainHeightKey,
          hasDatePicker: widget.walletRestoreViewModel.type != WalletType.haven,
          onHeightChange: (_) => null,
-                onHeightOrDateEntered: widget.onHeightOrDateEntered)
-          ]),
-        ));
+          onHeightOrDateEntered: widget.onHeightOrDateEntered,
+        ),
+      ],
+    );
+  }
+
+  Future<void> _pasteText() async {
+    final value = await Clipboard.getData('text/plain');
+
+    if (value?.text?.isNotEmpty ?? false) {
+      privateKeyController.text = value!.text!;
+    }
  }
 }
--- a/lib/src/screens/restore/wallet_restore_page.dart
+++ b/lib/src/screens/restore/wallet_restore_page.dart
@ -1,10 +1,7 @@
 import 'package:cake_wallet/themes/extensions/keyboard_theme.dart';
-import 'package:cake_wallet/themes/extensions/cake_text_theme.dart';
 import 'package:cake_wallet/src/widgets/keyboard_done_button.dart';
-import 'package:cake_wallet/src/widgets/scollable_with_bottom_section.dart';
 import 'package:cake_wallet/utils/responsive_layout_util.dart';
 import 'package:cw_core/wallet_type.dart';
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:keyboard_actions/keyboard_actions.dart';
 import 'package:mobx/mobx.dart';
@ -19,10 +16,6 @@ import 'package:cake_wallet/src/screens/restore/wallet_restore_from_keys_form.da
 import 'package:cake_wallet/src/screens/restore/wallet_restore_from_seed_form.dart';
 import 'package:cake_wallet/src/widgets/primary_button.dart';
 import 'package:cake_wallet/utils/show_pop_up.dart';
-import 'package:cake_wallet/core/validator.dart';
-import 'package:cake_wallet/generated/i18n.dart';
-import 'package:cake_wallet/src/widgets/base_text_form_field.dart';
-import 'package:cake_wallet/core/seed_validator.dart';
 import 'package:cake_wallet/view_model/restore/restore_mode.dart';
 import 'package:cake_wallet/themes/extensions/wallet_list_theme.dart';

@ -76,6 +69,7 @@ class WalletRestorePage extends BasePage {
          _pages.add(WalletRestoreFromKeysFrom(
              key: walletRestoreFromKeysFormKey,
              walletRestoreViewModel: walletRestoreViewModel,
+              displayPrivateKeyField: walletRestoreViewModel.hasRestoreFromPrivateKey,
              onHeightOrDateEntered: (value) => walletRestoreViewModel.isButtonEnabled = value));
          break;
        default:
@ -193,8 +187,12 @@ class WalletRestorePage extends BasePage {
                      return LoadingPrimaryButton(
                        onPressed: _confirmForm,
                        text: S.of(context).restore_recover,
-                        color: Theme.of(context).extension<WalletListTheme>()!.createNewWalletButtonBackgroundColor,
-                        textColor: Theme.of(context).extension<WalletListTheme>()!.restoreWalletButtonTextColor,
+                        color: Theme.of(context)
+                            .extension<WalletListTheme>()!
+                            .createNewWalletButtonBackgroundColor,
+                        textColor: Theme.of(context)
+                            .extension<WalletListTheme>()!
+                            .restoreWalletButtonTextColor,
                        isLoading: walletRestoreViewModel.state is IsExecutingState,
                        isDisabled: !walletRestoreViewModel.isButtonEnabled,
                      );
@ -245,12 +243,19 @@ class WalletRestorePage extends BasePage {

      credentials['name'] =
          walletRestoreFromSeedFormKey.currentState!.nameTextEditingController.text;
+    } else {
+      if (walletRestoreViewModel.hasRestoreFromPrivateKey) {
+        credentials['private_key'] =
+            walletRestoreFromKeysFormKey.currentState!.privateKeyController.text;
      } else {
        credentials['address'] = walletRestoreFromKeysFormKey.currentState!.addressController.text;
        credentials['viewKey'] = walletRestoreFromKeysFormKey.currentState!.viewKeyController.text;
-      credentials['spendKey'] = walletRestoreFromKeysFormKey.currentState!.spendKeyController.text;
+        credentials['spendKey'] =
+            walletRestoreFromKeysFormKey.currentState!.spendKeyController.text;
        credentials['height'] =
            walletRestoreFromKeysFormKey.currentState!.blockchainHeightKey.currentState!.height;
+      }
+
      credentials['name'] =
          walletRestoreFromKeysFormKey.currentState!.nameTextEditingController.text;
    }
--- a/lib/src/widgets/seed_widget.dart
+++ b/lib/src/widgets/seed_widget.dart
@ -1,16 +1,9 @@
 import 'package:cake_wallet/themes/extensions/cake_text_theme.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:cake_wallet/src/widgets/validable_annotated_editable_text.dart';
-import 'package:cake_wallet/src/widgets/blockchain_height_widget.dart';
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:cake_wallet/palette.dart';
 import 'package:cake_wallet/core/seed_validator.dart';
-import 'package:cake_wallet/src/widgets/primary_button.dart';
-import 'package:cake_wallet/entities/mnemonic_item.dart';
-import 'package:cake_wallet/generated/i18n.dart';
-import 'package:flutter/widgets.dart';
 import 'package:cake_wallet/themes/extensions/send_page_theme.dart';

 class SeedWidget extends StatefulWidget {
--- a/lib/utils/exception_handler.dart
+++ b/lib/utils/exception_handler.dart
@ -148,6 +148,7 @@ class ExceptionHandler {
    "CERTIFICATE_VERIFY_FAILED",
    "Handshake error in client",
    "Error while launching http",
+    "OS Error: Network is unreachable",
  ];

  static Future<void> _addDeviceInfo(File file) async {
--- a/lib/view_model/dashboard/dashboard_view_model.dart
+++ b/lib/view_model/dashboard/dashboard_view_model.dart
@ -107,7 +107,7 @@ abstract class DashboardViewModelBase with Store {
    name = wallet.name;
    type = wallet.type;
    isOutdatedElectrumWallet =
-        wallet.type == WalletType.bitcoin && wallet.seed.split(' ').length < 24;
+        wallet.type == WalletType.bitcoin && wallet.seed!.split(' ').length < 24;
    isShowFirstYatIntroduction = false;
    isShowSecondYatIntroduction = false;
    isShowThirdYatIntroduction = false;
@ -327,7 +327,7 @@ abstract class DashboardViewModelBase with Store {
    type = wallet.type;
    name = wallet.name;
    isOutdatedElectrumWallet =
-        wallet.type == WalletType.bitcoin && wallet.seed.split(' ').length < 24;
+        wallet.type == WalletType.bitcoin && wallet.seed!.split(' ').length < 24;
    updateActions();

    if (wallet.type == WalletType.monero) {
--- a/lib/view_model/restore/restore_from_qr_vm.dart
+++ b/lib/view_model/restore/restore_from_qr_vm.dart
@ -66,6 +66,9 @@ abstract class WalletRestorationFromQRVMBase extends WalletCreationVM with Store
          case WalletType.litecoin:
            return bitcoin!.createBitcoinRestoreWalletFromWIFCredentials(
                name: name, password: password, wif: wif);
+          case WalletType.ethereum:
+            return ethereum!.createEthereumRestoreWalletFromPrivateKey(
+                name: name, password: password, privateKey: restoreWallet.privateKey!);
          default:
            throw Exception('Unexpected type: ${restoreWallet.type.toString()}');
        }
--- a/lib/view_model/restore/restore_wallet.dart
+++ b/lib/view_model/restore/restore_wallet.dart
@ -13,7 +13,8 @@ class RestoredWallet {
      this.txAmount,
      this.txDescription,
      this.recipientName,
-      this.height});
+      this.height,
+      this.privateKey});

  final WalletRestoreMode restoreMode;
  final WalletType type;
@ -26,6 +27,7 @@ class RestoredWallet {
  final String? txDescription;
  final String? recipientName;
  final int? height;
+  final String? privateKey;

  factory RestoredWallet.fromKey(Map<String, dynamic> json) {
    final height = json['height'] as String?;
@ -36,6 +38,7 @@ class RestoredWallet {
      spendKey: json['spend_key'] as String?,
      viewKey: json['view_key'] as String?,
      height: height != null ? int.parse(height) : 0,
+      privateKey: json['private_key'] as String?,
    );
  }

--- a/lib/view_model/restore/wallet_restore_from_qr_code.dart
+++ b/lib/view_model/restore/wallet_restore_from_qr_code.dart
@ -33,7 +33,10 @@ class WalletRestoreFromQRCode {
        getSeedPhraseFromUrl(queryParameters.toString(), credentials['type'] as WalletType);
    if (seed != null) {
      credentials['seed'] = seed;
+    } else {
+      credentials['private_key'] = queryParameters['private_key'];
    }
+
    credentials.addAll(queryParameters);
    credentials['mode'] = getWalletRestoreMode(credentials);

@ -69,6 +72,8 @@ class WalletRestoreFromQRCode {
      case 'litecoin':
      case 'litecoin-wallet':
        return WalletType.litecoin;
+      case 'ethereum-wallet':
+        return WalletType.ethereum;
      default:
        throw Exception('Unexpected wallet type: ${scheme.toString()}');
    }
@ -101,6 +106,7 @@ class WalletRestoreFromQRCode {
        }
      case WalletType.bitcoin:
      case WalletType.litecoin:
+      case WalletType.ethereum:
        RegExp regex24 = RegExp(r'\b(\S+\b\s+){23}\S+\b');
        RegExp regex18 = RegExp(r'\b(\S+\b\s+){17}\S+\b');
        RegExp regex12 = RegExp(r'\b(\S+\b\s+){11}\S+\b');
@ -152,6 +158,14 @@ class WalletRestoreFromQRCode {
          : throw Exception('Unexpected restore mode: spend_key or view_key is invalid');
    }

+    if (type == WalletType.ethereum && credentials.containsKey('private_key')) {
+      final privateKey = credentials['private_key'] as String;
+      if (privateKey.isEmpty) {
+        throw Exception('Unexpected restore mode: private_key');
+      }
+      return WalletRestoreMode.keys;
+    }
+
    throw Exception('Unexpected restore mode: restore params are invalid');
  }
 }
--- a/lib/view_model/wallet_keys_view_model.dart
+++ b/lib/view_model/wallet_keys_view_model.dart
@ -69,7 +69,7 @@ abstract class WalletKeysViewModelBase with Store {
          StandartListItem(title: S.current.view_key_public, value: keys['publicViewKey']!),
        if (keys['privateViewKey'] != null)
          StandartListItem(title: S.current.view_key_private, value: keys['privateViewKey']!),
-        StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed),
+        StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed!),
      ]);
    }

@ -85,15 +85,23 @@ abstract class WalletKeysViewModelBase with Store {
          StandartListItem(title: S.current.view_key_public, value: keys['publicViewKey']!),
        if (keys['privateViewKey'] != null)
          StandartListItem(title: S.current.view_key_private, value: keys['privateViewKey']!),
-        StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed),
+        StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed!),
      ]);
    }

    if (_appStore.wallet!.type == WalletType.bitcoin ||
-        _appStore.wallet!.type == WalletType.litecoin ||
-        _appStore.wallet!.type == WalletType.ethereum) {
+        _appStore.wallet!.type == WalletType.litecoin) {
      items.addAll([
-        StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed),
+        StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed!),
+      ]);
+    }
+
+    if (_appStore.wallet!.type == WalletType.ethereum) {
+      items.addAll([
+        if (_appStore.wallet!.privateKey != null)
+          StandartListItem(title: S.current.private_key, value: _appStore.wallet!.privateKey!),
+        if (_appStore.wallet!.seed != null)
+          StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed!),
      ]);
    }
  }
@ -139,7 +147,8 @@ abstract class WalletKeysViewModelBase with Store {
  Future<Map<String, String>> get _queryParams async {
    final restoreHeightResult = await restoreHeight;
    return {
-      'seed': _appStore.wallet!.seed,
+      if (_appStore.wallet!.seed != null) 'seed': _appStore.wallet!.seed!,
+      if (_appStore.wallet!.privateKey != null) 'private_key': _appStore.wallet!.privateKey!,
      if (restoreHeightResult != null) ...{'height': restoreHeightResult}
    };
  }
--- a/lib/view_model/wallet_restoration_from_keys_vm.dart
+++ b/lib/view_model/wallet_restoration_from_keys_vm.dart
@ -1,77 +0,0 @@
-import 'package:cake_wallet/view_model/restore/restore_wallet.dart';
-import 'package:flutter/foundation.dart';
-import 'package:hive/hive.dart';
-import 'package:mobx/mobx.dart';
-import 'package:cake_wallet/monero/monero.dart';
-import 'package:cake_wallet/store/app_store.dart';
-import 'package:cw_core/wallet_base.dart';
-import 'package:cake_wallet/core/generate_wallet_password.dart';
-import 'package:cake_wallet/core/wallet_creation_service.dart';
-import 'package:cw_core/wallet_credentials.dart';
-import 'package:cw_core/wallet_type.dart';
-import 'package:cake_wallet/view_model/wallet_creation_vm.dart';
-import 'package:cw_core/wallet_info.dart';
-import 'package:cake_wallet/bitcoin/bitcoin.dart';
-
-part 'wallet_restoration_from_keys_vm.g.dart';
-
-class WalletRestorationFromKeysVM = WalletRestorationFromKeysVMBase
-    with _$WalletRestorationFromKeysVM;
-
-abstract class WalletRestorationFromKeysVMBase extends WalletCreationVM
-    with Store {
-  WalletRestorationFromKeysVMBase(AppStore appStore,
-      WalletCreationService walletCreationService, Box<WalletInfo> walletInfoSource,
-      {required WalletType type, required this.language})
-      : height = 0,
-        viewKey = '',
-        spendKey = '',
-        wif = '',
-        address = '',
-        super(appStore, walletInfoSource, walletCreationService, type: type, isRecovery: true);
-
-  @observable
-  int height;
-
-  @observable
-  String viewKey;
-
-  @observable
-  String spendKey;
-
-  @observable
-  String wif;
-
-  @observable
-  String address;
-
-  bool get hasRestorationHeight => type == WalletType.monero;
-
-  final String language;
-
-  @override
-  WalletCredentials getCredentials(dynamic options) {
-    final password = generateWalletPassword();
-
-    switch (type) {
-      case WalletType.monero:
-        return monero!.createMoneroRestoreWalletFromKeysCredentials(
-            name: name,
-            password: password,
-            language: language,
-            address: address,
-            viewKey: viewKey,
-            spendKey: spendKey,
-            height: height);
-      case WalletType.bitcoin:
-        return bitcoin!.createBitcoinRestoreWalletFromWIFCredentials(
-            name: name, password: password, wif: wif);
-      default:
-        throw Exception('Unexpected type: ${type.toString()}');
-    }
-  }
-
-  @override
-  Future<WalletBase> process(WalletCredentials credentials) async =>
-      walletCreationService.restoreFromKeys(credentials);
-}
--- a/lib/view_model/wallet_restoration_from_seed_vm.dart
+++ b/lib/view_model/wallet_restoration_from_seed_vm.dart
@ -1,58 +0,0 @@
-import 'package:cake_wallet/view_model/restore/restore_wallet.dart';
-import 'package:flutter/foundation.dart';
-import 'package:hive/hive.dart';
-import 'package:mobx/mobx.dart';
-import 'package:cake_wallet/monero/monero.dart';
-import 'package:cake_wallet/store/app_store.dart';
-import 'package:cake_wallet/bitcoin/bitcoin.dart';
-import 'package:cw_core/wallet_base.dart';
-import 'package:cake_wallet/core/generate_wallet_password.dart';
-import 'package:cake_wallet/core/wallet_creation_service.dart';
-import 'package:cw_core/wallet_credentials.dart';
-import 'package:cw_core/wallet_type.dart';
-import 'package:cake_wallet/view_model/wallet_creation_vm.dart';
-import 'package:cw_core/wallet_info.dart';
-
-part 'wallet_restoration_from_seed_vm.g.dart';
-
-class WalletRestorationFromSeedVM = WalletRestorationFromSeedVMBase
-    with _$WalletRestorationFromSeedVM;
-
-abstract class WalletRestorationFromSeedVMBase extends WalletCreationVM
-    with Store {
-  WalletRestorationFromSeedVMBase(AppStore appStore,
-      WalletCreationService walletCreationService, Box<WalletInfo> walletInfoSource,
-      {required WalletType type, required this.language, this.seed = ''})
-      : height = 0,
-        super(appStore, walletInfoSource, walletCreationService, type: type, isRecovery: true);
-
-  @observable
-  String seed;
-
-  @observable
-  int height;
-
-  bool get hasRestorationHeight => type == WalletType.monero;
-
-  final String language;
-
-  @override
-  WalletCredentials getCredentials(dynamic options) {
-    final password = generateWalletPassword();
-
-    switch (type) {
-      case WalletType.monero:
-        return monero!.createMoneroRestoreWalletFromSeedCredentials(
-            name: name, height: height, mnemonic: seed, password: password);
-      case WalletType.bitcoin:
-        return bitcoin!.createBitcoinRestoreWalletFromSeedCredentials(
-            name: name, mnemonic: seed, password: password);
-      default:
-        throw Exception('Unexpected type: ${type.toString()}');
-    }
-  }
-
-  @override
-  Future<WalletBase> process(WalletCredentials credentials) async =>
-      walletCreationService.restoreFromSeed(credentials);
-}
--- a/lib/view_model/wallet_restore_view_model.dart
+++ b/lib/view_model/wallet_restore_view_model.dart
@ -1,7 +1,4 @@
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
-import 'package:cake_wallet/core/mnemonic_length.dart';
-import 'package:cake_wallet/view_model/restore/restore_wallet.dart';
-import 'package:flutter/foundation.dart';
 import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
@ -19,7 +16,6 @@ import 'package:cake_wallet/view_model/restore/restore_mode.dart';

 part 'wallet_restore_view_model.g.dart';

-
 class WalletRestoreViewModel = WalletRestoreViewModelBase
    with _$WalletRestoreViewModel;

@ -27,11 +23,13 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
  WalletRestoreViewModelBase(AppStore appStore, WalletCreationService walletCreationService,
      Box<WalletInfo> walletInfoSource,
      {required WalletType type})
-      : availableModes = (type == WalletType.monero || type == WalletType.haven)
+      : availableModes =
+            (type == WalletType.monero || type == WalletType.haven || type == WalletType.ethereum)
                ? WalletRestoreMode.values
                : [WalletRestoreMode.seed],
        hasSeedLanguageSelector = type == WalletType.monero || type == WalletType.haven,
        hasBlockchainHeightLanguageSelector = type == WalletType.monero || type == WalletType.haven,
+        hasRestoreFromPrivateKey = type == WalletType.ethereum,
        isButtonEnabled = false,
        mode = WalletRestoreMode.seed,
        super(appStore, walletInfoSource, walletCreationService, type: type, isRecovery: true) {
@ -47,6 +45,7 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
  final List<WalletRestoreMode> availableModes;
  final bool hasSeedLanguageSelector;
  final bool hasBlockchainHeightLanguageSelector;
+  final bool hasRestoreFromPrivateKey;

  @observable
  WalletRestoreMode mode;
@ -97,17 +96,17 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
    }

    if (mode == WalletRestoreMode.keys) {
-      final viewKey = options['viewKey'] as String;
-      final spendKey = options['spendKey'] as String;
-      final address = options['address'] as String;
+      final viewKey = options['viewKey'] as String?;
+      final spendKey = options['spendKey'] as String?;
+      final address = options['address'] as String?;

      if (type == WalletType.monero) {
        return monero!.createMoneroRestoreWalletFromKeysCredentials(
            name: name,
            height: height,
-            spendKey: spendKey,
-            viewKey: viewKey,
-            address: address,
+            spendKey: spendKey!,
+            viewKey: viewKey!,
+            address: address!,
            password: password,
            language: 'English');
      }
@ -116,12 +115,20 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
        return haven!.createHavenRestoreWalletFromKeysCredentials(
            name: name,
            height: height,
-            spendKey: spendKey,
-            viewKey: viewKey,
-            address: address,
+            spendKey: spendKey!,
+            viewKey: viewKey!,
+            address: address!,
            password: password,
            language: 'English');
      }
+
+      if (type == WalletType.ethereum) {
+        return ethereum!.createEthereumRestoreWalletFromPrivateKey(
+          name: name,
+          privateKey: options['private_key'] as String,
+          password: password,
+        );
+      }
    }

    throw Exception('Unexpected type: ${type.toString()}');
--- a/lib/view_model/wallet_seed_view_model.dart
+++ b/lib/view_model/wallet_seed_view_model.dart
@ -8,7 +8,7 @@ class WalletSeedViewModel = WalletSeedViewModelBase with _$WalletSeedViewModel;
 abstract class WalletSeedViewModelBase with Store {
  WalletSeedViewModelBase(WalletBase wallet)
      : name = wallet.name,
-        seed = wallet.seed;
+        seed = wallet.seed!;

  @observable
  String name;
--- a/tool/configure.dart
+++ b/tool/configure.dart
@ -507,6 +507,7 @@ abstract class Ethereum {
  WalletService createEthereumWalletService(Box<WalletInfo> walletInfoSource);
  WalletCredentials createEthereumNewWalletCredentials({required String name, WalletInfo? walletInfo});
  WalletCredentials createEthereumRestoreWalletFromSeedCredentials({required String name, required String mnemonic, required String password});
+  WalletCredentials createEthereumRestoreWalletFromPrivateKey({required String name, required String privateKey, required String password});
  String getAddress(WalletBase wallet);
  TransactionPriority getDefaultTransactionPriority();
  List<TransactionPriority> getTransactionPriorities();