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]

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;
 

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);
+    _ethPrivateKey = await getPrivateKey(
-    walletAddresses.address = _privateKey.address.toString();
+      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 =
+        final priorityFee = EtherAmount.fromInt(EtherUnit.gwei, priority.tip).getInWei.toInt();
-            EtherAmount.fromUnitAndValue(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 {
+  Future<EthPrivateKey> getPrivateKey(
-    final seed = bip39.mnemonicToSeed(mnemonic);
+      {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 {

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

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

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:

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);

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;
 

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,

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';

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,
-          );
-        }),
-      ),
-    );
-  }
-}

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 createState() => WalletRestoreFromKeysFromState();
-      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() {
@@ -51,16 +63,18 @@ class WalletRestoreFromKeysFromState extends State<WalletRestoreFromKeysFrom> {
     addressController.dispose();
     viewKeyController.dispose();
     spendKeyController.dispose();
+    privateKeyController.dispose();
     super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
     return Container(
-        padding: EdgeInsets.only(left: 24, right: 24),
+      padding: EdgeInsets.only(left: 24, right: 24),
-        child: Form(
+      child: Form(
-          key: formKey,
+        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 =
+                        nameTextEditingController.selection = TextSelection.fromPosition(
-                            TextSelection.fromPosition(TextPosition(
+                            TextPosition(offset: nameTextEditingController.text.length));
-                                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),
-            BaseTextFormField(
+            _restoreFromKeysFormFields(),
-                controller: addressController,
+          ],
-                keyboardType: TextInputType.multiline,
+        ),
-                maxLines: null,
+      ),
-                hintText: S.of(context).restore_address),
+    );
-            Container(
+  }
-                padding: EdgeInsets.only(top: 20.0),
+
-                child: BaseTextFormField(
+  Widget _restoreFromKeysFormFields() {
-                    controller: viewKeyController,
+    if (widget.displayPrivateKeyField) {
-                    hintText: S.of(context).restore_view_key_private,
+      return AddressTextField(
-                    maxLines: null)),
+        controller: privateKeyController,
-            Container(
+        placeholder: S.of(context).private_key,
-                padding: EdgeInsets.only(top: 20.0),
+        options: [AddressTextFieldOption.paste],
-                child: BaseTextFormField(
+        buttonColor: Theme.of(context).hintColor,
-                    controller: spendKeyController,
+        onPushPasteButton: (_) {
-                    hintText: S.of(context).restore_spend_key_private,
+          _pasteText();
-                    maxLines: null)),
+        },
-            BlockchainHeightWidget(
+      );
-                key: blockchainHeightKey,
+    }
-                hasDatePicker: widget.walletRestoreViewModel.type != WalletType.haven,
+
-                onHeightChange: (_) => null,
+    return Column(
-                onHeightOrDateEntered: widget.onHeightOrDateEntered)
+      children: [
-          ]),
+        BaseTextFormField(
-        ));
+          controller: addressController,
+          keyboardType: TextInputType.multiline,
+          maxLines: null,
+          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,
+          ),
+        ),
+        Container(
+          padding: EdgeInsets.only(top: 20.0),
+          child: BaseTextFormField(
+            controller: spendKeyController,
+            hintText: S.of(context).restore_spend_key_private,
+            maxLines: null,
+          ),
+        ),
+        BlockchainHeightWidget(
+          key: blockchainHeightKey,
+          hasDatePicker: widget.walletRestoreViewModel.type != WalletType.haven,
+          onHeightChange: (_) => null,
+          onHeightOrDateEntered: widget.onHeightOrDateEntered,
+        ),
+      ],
+    );
+  }
+
+  Future<void> _pasteText() async {
+    final value = await Clipboard.getData('text/plain');
+
+    if (value?.text?.isNotEmpty ?? false) {
+      privateKeyController.text = value!.text!;
+    }
   }
 }

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,
+                        color: Theme.of(context)
-                        textColor: Theme.of(context).extension<WalletListTheme>()!.restoreWalletButtonTextColor,
+                            .extension<WalletListTheme>()!
+                            .createNewWalletButtonBackgroundColor,
+                        textColor: Theme.of(context)
+                            .extension<WalletListTheme>()!
+                            .restoreWalletButtonTextColor,
                         isLoading: walletRestoreViewModel.state is IsExecutingState,
                         isDisabled: !walletRestoreViewModel.isButtonEnabled,
                       );
@@ -246,11 +244,18 @@ class WalletRestorePage extends BasePage {
       credentials['name'] =
           walletRestoreFromSeedFormKey.currentState!.nameTextEditingController.text;
     } else {
-      credentials['address'] = walletRestoreFromKeysFormKey.currentState!.addressController.text;
+      if (walletRestoreViewModel.hasRestoreFromPrivateKey) {
-      credentials['viewKey'] = walletRestoreFromKeysFormKey.currentState!.viewKeyController.text;
+        credentials['private_key'] =
-      credentials['spendKey'] = walletRestoreFromKeysFormKey.currentState!.spendKeyController.text;
+            walletRestoreFromKeysFormKey.currentState!.privateKeyController.text;
-      credentials['height'] =
+      } else {
-          walletRestoreFromKeysFormKey.currentState!.blockchainHeightKey.currentState!.height;
+        credentials['address'] = walletRestoreFromKeysFormKey.currentState!.addressController.text;
+        credentials['viewKey'] = walletRestoreFromKeysFormKey.currentState!.viewKeyController.text;
+        credentials['spendKey'] =
+            walletRestoreFromKeysFormKey.currentState!.spendKeyController.text;
+        credentials['height'] =
+            walletRestoreFromKeysFormKey.currentState!.blockchainHeightKey.currentState!.height;
+      }
+
       credentials['name'] =
           walletRestoreFromKeysFormKey.currentState!.nameTextEditingController.text;
     }

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 {

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 {

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) {

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()}');
         }

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?,
     );
   }
 

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');
   }
 }

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.litecoin) {
-        _appStore.wallet!.type == WalletType.ethereum) {
       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}
     };
   }

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);
-}

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);
-}

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 =
-            ? WalletRestoreMode.values
+            (type == WalletType.monero || type == WalletType.haven || type == WalletType.ethereum)
-            : [WalletRestoreMode.seed],
+                ? 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 viewKey = options['viewKey'] as String?;
-      final spendKey = options['spendKey'] as String;
+      final spendKey = options['spendKey'] as String?;
-      final address = options['address'] as String;
+      final address = options['address'] as String?;
 
       if (type == WalletType.monero) {
         return monero!.createMoneroRestoreWalletFromKeysCredentials(
             name: name,
             height: height,
-            spendKey: spendKey,
+            spendKey: spendKey!,
-            viewKey: viewKey,
+            viewKey: viewKey!,
-            address: address,
+            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,
+            spendKey: spendKey!,
-            viewKey: viewKey,
+            viewKey: viewKey!,
-            address: address,
+            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()}');

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;

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();