diff --git a/lib/models/wallet_options.dart b/lib/models/wallet_options.dart
index 20bb30d..581462a 100644
--- a/lib/models/wallet_options.dart
+++ b/lib/models/wallet_options.dart
@@ -2,6 +2,7 @@ import 'dart:io';
 import 'package:crypto/crypto.dart';
 import 'package:durt/durt.dart';
 import 'package:fast_base58/fast_base58.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'dart:async';
 import 'package:gecko/globals.dart';
@@ -25,57 +26,19 @@ class WalletOptionsProvider with ChangeNotifier {
 
   Future<NewWallet> get badWallet => null;
 
-  String _getPubkeyFromDewif(
-      String _dewif, _pin, int _pinLenght, int derivation) {
-    RegExp regExp = RegExp(
-      r'^[A-Z0-9]+$',
-      caseSensitive: false,
-      multiLine: false,
-    );
-
-    if (regExp.hasMatch(_pin) == true && _pin.length == _pinLenght) {
-    } else {
-      return 'false';
-    }
-    if (derivation != -1) {
-      try {
-        final _wallet = HdWallet.fromDewif(_dewif, _pin);
-        pubkey.text = _wallet.getPubkey(derivation);
-        log.d(pubkey.text);
-        notifyListeners();
-
-        return pubkey.text;
-      } catch (e) {
-        log.w('Bad PIN code !\n' + e);
-        notifyListeners();
-
-        return 'false';
-      }
-    } else {
-      try {
-        pubkey.text = CesiumWallet.fromDewif(_dewif, _pin).pubkey;
-        notifyListeners();
-        return pubkey.text;
-      } catch (e) {
-        log.w('Bad PIN code !\n' + e);
-        notifyListeners();
-
-        return 'false';
-      }
-    }
-  }
-
-  String readLocalWallet(
-      context, WalletData _wallet, String _pin, int _pinLenght) {
+  Future<String> readLocalWallet(
+      context, WalletData _wallet, String _pin, int _pinLenght) async {
     isWalletUnlock = false;
     try {
       String _localDewif = chestBox.get(_wallet.chest).dewif;
-      String _localPubkey;
 
-      if ((_localPubkey = _getPubkeyFromDewif(
-              _localDewif, _pin, _pinLenght, _wallet.derivation)) !=
-          'false') {
-        pubkey.text = _localPubkey;
+      final _pubkey = await compute(
+          _getPubkeyFromDewif,
+          GetPubkeyFromDewifArgs(
+              _localDewif, _pin, _pinLenght, _wallet.derivation));
+
+      if (_pubkey != 'false') {
+        pubkey.text = _pubkey;
         isWalletUnlock = true;
         log.d(pubkey.text);
         return _localDewif;
@@ -239,3 +202,48 @@ class WalletOptionsProvider with ChangeNotifier {
     notifyListeners();
   }
 }
+
+String _getPubkeyFromDewif(GetPubkeyFromDewifArgs parseArgs) {
+  String pubkey;
+  RegExp regExp = RegExp(
+    r'^[A-Z0-9]+$',
+    caseSensitive: false,
+    multiLine: false,
+  );
+
+  if (regExp.hasMatch(parseArgs.pin) == true &&
+      parseArgs.pin.length == parseArgs.pinLenght) {
+  } else {
+    return 'false';
+  }
+  if (parseArgs.derivation != -1) {
+    try {
+      final _wallet = HdWallet.fromDewif(parseArgs.dewif, parseArgs.pin);
+      pubkey = _wallet.getPubkey(parseArgs.derivation);
+      log.d(pubkey);
+
+      return pubkey;
+    } catch (e) {
+      log.w('Bad PIN code !\n' + e);
+
+      return 'false';
+    }
+  } else {
+    try {
+      pubkey = CesiumWallet.fromDewif(parseArgs.dewif, parseArgs.pin).pubkey;
+      return pubkey;
+    } catch (e) {
+      log.w('Bad PIN code !\n' + e);
+
+      return 'false';
+    }
+  }
+}
+
+class GetPubkeyFromDewifArgs {
+  final String dewif;
+  final String pin;
+  final int pinLenght;
+  final int derivation;
+  GetPubkeyFromDewifArgs(this.dewif, this.pin, this.pinLenght, this.derivation);
+}
diff --git a/lib/screens/myWallets/unlocking_wallet.dart b/lib/screens/myWallets/unlocking_wallet.dart
index 9370d25..f9fdf6b 100644
--- a/lib/screens/myWallets/unlocking_wallet.dart
+++ b/lib/screens/myWallets/unlocking_wallet.dart
@@ -198,7 +198,7 @@ class UnlockingWallet extends StatelessWidget {
             onCompleted: (_pin) async {
               log.d("Completed");
               _myWalletProvider.pinCode = _pin;
-              final String resultWallet = _walletOptions.readLocalWallet(
+              final String resultWallet = await _walletOptions.readLocalWallet(
                   context, wallet, _pin.toUpperCase(), _pinLenght);
               // _myWalletProvider.pinCode = _pin.toUpperCase();
               _myWalletProvider.pinLenght = _pinLenght;