Merge branch 'main' into CW-529-Modify-2FA-introduction-screens

.github/workflows/pr_test_build.yml

@@ -3,6 +3,12 @@ name: PR Test Build
 on:
   pull_request:
     branches: [main]
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: 'Branch name to build'
+        required: true
+        default: 'main'
 
 jobs:
   PR_test_build:
@@ -12,6 +18,14 @@ jobs:
       KEY_PASS: test@cake_wallet
 
     steps:
+      - name: is pr
+        if: github.event_name == 'pull_request'
+        run: echo "BRANCH_NAME=${GITHUB_HEAD_REF}" >> $GITHUB_ENV
+
+      - name: is not pr
+        if: github.event_name != 'pull_request'
+        run: echo "BRANCH_NAME=${{ github.event.inputs.branch }}" >> $GITHUB_ENV
+
       - name: Free Up GitHub Actions Ubuntu Runner Disk Space
         run: |
           sudo rm -rf /usr/share/dotnet
@@ -40,7 +54,7 @@ jobs:
           cd /opt/android
           -y curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
           cargo install cargo-ndk
-          git clone https://github.com/cake-tech/cake_wallet.git --branch $GITHUB_HEAD_REF
+          git clone https://github.com/cake-tech/cake_wallet.git --branch ${{ env.BRANCH_NAME }}
           cd cake_wallet/scripts/android/
           ./install_ndk.sh
           source ./app_env.sh cakewallet
@@ -97,6 +111,7 @@ jobs:
           cd cw_ethereum && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
           cd cw_bitcoin_cash && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
           cd cw_nano && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
+          cd cw_polygon && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
           flutter packages pub run build_runner build --delete-conflicting-outputs
 
       - name: Add secrets
@@ -131,6 +146,7 @@ jobs:
           echo "const fiatApiKey = '${{ secrets.FIAT_API_KEY }}';" >> lib/.secrets.g.dart
           echo "const payfuraApiKey = '${{ secrets.PAYFURA_API_KEY }}';" >> lib/.secrets.g.dart
           echo "const etherScanApiKey = '${{ secrets.ETHER_SCAN_API_KEY }}';" >> cw_ethereum/lib/.secrets.g.dart
+          echo "const polygonScanApiKey = '${{ secrets.POLYGON_SCAN_API_KEY }}';" >> cw_ethereum/lib/.secrets.g.dart
           echo "const chatwootWebsiteToken = '${{ secrets.CHATWOOT_WEBSITE_TOKEN }}';" >> lib/.secrets.g.dart
           echo "const exolixApiKey = '${{ secrets.EXOLIX_API_KEY }}';" >> lib/.secrets.g.dart
           echo "const robinhoodApplicationId = '${{ secrets.ROBINHOOD_APPLICATION_ID }}';" >> lib/.secrets.g.dart
@@ -139,7 +155,7 @@ jobs:
           echo "const moralisApiKey = '${{ secrets.MORALIS_API_KEY }}';" >> lib/.secrets.g.dart
 
       - name: Rename app
-        run: echo -e "id=com.cakewallet.test\nname=$GITHUB_HEAD_REF" > /opt/android/cake_wallet/android/app.properties
+        run: echo -e "id=com.cakewallet.test\nname=${{ env.BRANCH_NAME }}" > /opt/android/cake_wallet/android/app.properties
 
       - name: Build
         run: |
@@ -154,7 +170,7 @@ jobs:
 #                appcenter distribute release \
 #                    --group "Testers" \
 #                    --file "/opt/android/cake_wallet/build/app/outputs/apk/release/app-release.apk" \
-#                    --release-notes ${GITHUB_HEAD_REF} \
+#                    --release-notes ${{ env.BRANCH_NAME }} \
 #                    --app Cake-Labs/Cake-Wallet \
 #                    --token ${{ secrets.APP_CENTER_TOKEN }} \
 #                    --quiet
@@ -163,7 +179,7 @@ jobs:
         run: |
           cd /opt/android/cake_wallet/build/app/outputs/apk/release
           mkdir test-apk
-          cp app-release.apk test-apk/$GITHUB_HEAD_REF.apk
+          cp app-release.apk test-apk/${{env.BRANCH_NAME}}.apk
 
       - name: Upload Artifact
         uses: kittaakos/upload-artifact-as-is@v0
@@ -177,6 +193,6 @@ jobs:
           token: ${{ secrets.SLACK_APP_TOKEN }}
           path: /opt/android/cake_wallet/build/app/outputs/apk/release/app-release.apk
           channel: ${{ secrets.SLACK_APK_CHANNEL }}
-          title: "${{github.head_ref}}.apk"
+          title: "${{ env.BRANCH_NAME }}.apk"
-          filename: ${{github.head_ref}}.apk
+          filename: ${{ env.BRANCH_NAME }}.apk
           initial_comment: ${{ github.event.head_commit.message }}

.gitignore

@@ -126,6 +126,7 @@ lib/haven/haven.dart
 lib/ethereum/ethereum.dart
 lib/bitcoin_cash/bitcoin_cash.dart
 lib/nano/nano.dart
+lib/polygon/polygon.dart
 
 ios/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_180.png
 ios/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_120.png

android/app/src/main/AndroidManifestBase.xml

@@ -62,6 +62,9 @@
                 <data android:scheme="bitcoincash" />
                 <data android:scheme="bitcoincash-wallet" />
                 <data android:scheme="bitcoincash_wallet" />
+                <data android:scheme="polygon" />
+                <data android:scheme="polygon-wallet" />
+                <data android:scheme="polygon_wallet" />
             </intent-filter>
         </activity>
         <meta-data

assets/polygon_node_list.yml

@@ -0,0 +1,6 @@
+-
+  uri: polygon-bor.publicnode.com
+-
+  uri: polygon-rpc.com
+- 
+  uri: polygon.llamarpc.com

assets/text/Monerocom_Release_Notes.txt

@@ -1,7 +1,2 @@
-Coin control fixes and enhancements
+Monero Polyseed support, create and restore from a 16 words phrase and without the need to remember the wallet creation date
-In-app Tor connection
+Bug fixes and enhancements
-Accessibility enhancements
-Privacy settings enhancements
-UI enhancements
-Backup flow fixes
-Bug fixes

assets/text/Release_Notes.txt

@@ -1,7 +1,3 @@
-Coin control fixes and enhancements
+Monero Polyseed support, create and restore from a 16 words phrase and without the need to remember the wallet creation date
-In-app Tor connection
+Add NFTs tab to see all of your purchased NFTs on Ethereum
-Accessibility enhancements
+Bug fixes and enhancements
-Privacy settings enhancements
-UI enhancements
-Backup flow fixes
-Bug fixes

configure_cake_wallet_android.sh

@@ -2,6 +2,7 @@ cd scripts/android
 source ./app_env.sh cakewallet
 ./app_config.sh
 cd ../.. && flutter pub get
+flutter packages pub run tool/generate_localization.dart
 cd cw_core && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
 cd cw_monero && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
 cd cw_bitcoin && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
@@ -9,4 +10,5 @@ cd cw_haven && flutter pub get && flutter packages pub run build_runner build --
 cd cw_ethereum && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
 cd cw_nano && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
 cd cw_bitcoin_cash && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
+cd cw_polygon && flutter pub get && flutter packages pub run build_runner build --delete-conflicting-outputs && cd ..
 flutter packages pub run build_runner build --delete-conflicting-outputs

cw_bitcoin/lib/electrum_transaction_history.dart

@@ -1,10 +1,11 @@
 import 'dart:convert';
+
+import 'package:cw_bitcoin/electrum_transaction_info.dart';
 import 'package:cw_core/pathForWallet.dart';
+import 'package:cw_core/transaction_history.dart';
+import 'package:cw_core/utils/file.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:mobx/mobx.dart';
-import 'package:cw_core/transaction_history.dart';
-import 'package:cw_bitcoin/file.dart';
-import 'package:cw_bitcoin/electrum_transaction_info.dart';
 
 part 'electrum_transaction_history.g.dart';
 

cw_bitcoin/lib/electrum_wallet.dart

@@ -18,7 +18,6 @@ import 'package:cw_bitcoin/electrum_balance.dart';
 import 'package:cw_bitcoin/electrum_transaction_history.dart';
 import 'package:cw_bitcoin/electrum_transaction_info.dart';
 import 'package:cw_bitcoin/electrum_wallet_addresses.dart';
-import 'package:cw_bitcoin/file.dart';
 import 'package:cw_bitcoin/pending_bitcoin_transaction.dart';
 import 'package:cw_bitcoin/script_hash.dart';
 import 'package:cw_bitcoin/utils.dart';
@@ -30,6 +29,7 @@ import 'package:cw_core/sync_status.dart';
 import 'package:cw_core/transaction_direction.dart';
 import 'package:cw_core/transaction_priority.dart';
 import 'package:cw_core/unspent_coins_info.dart';
+import 'package:cw_core/utils/file.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:flutter/foundation.dart';
@@ -480,7 +480,7 @@ abstract class ElectrumWalletBase
     unspentCoins = unspent.expand((e) => e).toList();
     unspentCoins.forEach((coin) async {
       final tx = await fetchTransactionInfo(hash: coin.hash, height: 0);
-      coin.isChange = tx!.direction == TransactionDirection.outgoing;
+      coin.isChange = tx?.direction == TransactionDirection.outgoing;
     });
 
     if (unspentCoinsInfo.isEmpty) {
@@ -725,8 +725,7 @@ abstract class ElectrumWalletBase
     final index = address != null
         ? walletAddresses.addresses.firstWhere((element) => element.address == address).index
         : null;
-    return index == null
+    final HD = index == null ? hd : hd.derive(index);
-        ? base64Encode(hd.sign(message))
+    return base64Encode(HD.signMessage(message));
-        : base64Encode(hd.derive(index).sign(message));
   }
 }

cw_bitcoin/lib/electrum_wallet_snapshot.dart

@@ -1,8 +1,8 @@
 import 'dart:convert';
 import 'package:cw_bitcoin/bitcoin_address_record.dart';
 import 'package:cw_bitcoin/electrum_balance.dart';
-import 'package:cw_bitcoin/file.dart';
 import 'package:cw_core/pathForWallet.dart';
+import 'package:cw_core/utils/file.dart';
 import 'package:cw_core/wallet_type.dart';
 
 class ElectrumWallletSnapshot {

cw_bitcoin/pubspec.yaml

@@ -22,7 +22,7 @@ dependencies:
   bitcoin_flutter:
     git:
       url: https://github.com/cake-tech/bitcoin_flutter.git
-      ref: cake-update-v3
+      ref: cake-update-v4
   bitbox:
     git:
       url: https://github.com/cake-tech/bitbox-flutter.git
@@ -30,7 +30,6 @@ dependencies:
   rxdart: ^0.27.5
   unorm_dart: ^0.2.0
   cryptography: ^2.0.5
-  encrypt: ^5.0.1
 
 dev_dependencies:
   flutter_test:

cw_bitcoin_cash/lib/src/bitcoin_cash_wallet.dart

@@ -302,10 +302,8 @@ abstract class BitcoinCashWalletBase extends ElectrumWallet with Store {
     final index = address != null
         ? walletAddresses.addresses
             .firstWhere((element) => element.address == AddressUtils.toLegacyAddress(address))
-            .index
+            .index : null;
-        : null;
+    final HD = index == null ? hd : hd.derive(index);
-    return index == null
+    return base64Encode(HD.signMessage(message));
-        ? base64Encode(hd.sign(message))
-        : base64Encode(hd.derive(index).sign(message));
   }
 }

cw_bitcoin_cash/linux/flutter/ephemeral/.plugin_symlinks/path_provider_linux

@@ -1 +0,0 @@
-/Users/blazebrain/.pub-cache/hosted/pub.dev/path_provider_linux-2.2.1/

cw_bitcoin_cash/linux/flutter/ephemeral/.plugin_symlinks/tor

@@ -1 +0,0 @@
-/Users/blazebrain/.pub-cache/git/tor-09ba92cb11d4e3cacf97256e57863b805f79f2e5/

cw_bitcoin_cash/linux/flutter/generated_plugin_registrant.cc

@@ -1,11 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-// clang-format off
-
-#include "generated_plugin_registrant.h"
-
-
-void fl_register_plugins(FlPluginRegistry* registry) {
-}

cw_bitcoin_cash/linux/flutter/generated_plugin_registrant.h

@@ -1,15 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-// clang-format off
-
-#ifndef GENERATED_PLUGIN_REGISTRANT_
-#define GENERATED_PLUGIN_REGISTRANT_
-
-#include <flutter_linux/flutter_linux.h>
-
-// Registers Flutter plugins.
-void fl_register_plugins(FlPluginRegistry* registry);
-
-#endif  // GENERATED_PLUGIN_REGISTRANT_

cw_bitcoin_cash/linux/flutter/generated_plugins.cmake

@@ -1,24 +0,0 @@
-#
-# Generated file, do not edit.
-#
-
-list(APPEND FLUTTER_PLUGIN_LIST
-)
-
-list(APPEND FLUTTER_FFI_PLUGIN_LIST
-  tor
-)
-
-set(PLUGIN_BUNDLED_LIBRARIES)
-
-foreach(plugin ${FLUTTER_PLUGIN_LIST})
-  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
-  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
-endforeach(plugin)
-
-foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
-  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin})
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
-endforeach(ffi_plugin)

cw_bitcoin_cash/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -1,12 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-import FlutterMacOS
-import Foundation
-
-import path_provider_foundation
-
-func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
-  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
-}

cw_bitcoin_cash/macos/Flutter/ephemeral/Flutter-Generated.xcconfig

@@ -1,11 +0,0 @@
-// This is a generated file; do not edit or check into version control.
-FLUTTER_ROOT=C:\Users\borod\flutter
-FLUTTER_APPLICATION_PATH=C:\cake_wallet\cw_bitcoin_cash
-COCOAPODS_PARALLEL_CODE_SIGN=true
-FLUTTER_BUILD_DIR=build
-FLUTTER_BUILD_NAME=0.0.1
-FLUTTER_BUILD_NUMBER=0.0.1
-DART_OBFUSCATION=false
-TRACK_WIDGET_CREATION=true
-TREE_SHAKE_ICONS=false
-PACKAGE_CONFIG=.dart_tool/package_config.json

cw_bitcoin_cash/macos/Flutter/ephemeral/flutter_export_environment.sh

@@ -1,12 +0,0 @@
-#!/bin/sh
-# This is a generated file; do not edit or check into version control.
-export "FLUTTER_ROOT=C:\Users\borod\flutter"
-export "FLUTTER_APPLICATION_PATH=C:\cake_wallet\cw_bitcoin_cash"
-export "COCOAPODS_PARALLEL_CODE_SIGN=true"
-export "FLUTTER_BUILD_DIR=build"
-export "FLUTTER_BUILD_NAME=0.0.1"
-export "FLUTTER_BUILD_NUMBER=0.0.1"
-export "DART_OBFUSCATION=false"
-export "TRACK_WIDGET_CREATION=true"
-export "TREE_SHAKE_ICONS=false"
-export "PACKAGE_CONFIG=.dart_tool/package_config.json"

cw_bitcoin_cash/pubspec.yaml

@@ -24,7 +24,7 @@ dependencies:
   bitcoin_flutter:
     git:
       url: https://github.com/cake-tech/bitcoin_flutter.git
-      ref: cake-update-v3
+      ref: cake-update-v4
   bitbox:
     git:
       url: https://github.com/cake-tech/bitbox-flutter.git

cw_bitcoin_cash/windows/flutter/generated_plugin_registrant.cc

@@ -1,11 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-// clang-format off
-
-#include "generated_plugin_registrant.h"
-
-
-void RegisterPlugins(flutter::PluginRegistry* registry) {
-}

cw_bitcoin_cash/windows/flutter/generated_plugin_registrant.h

@@ -1,15 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-// clang-format off
-
-#ifndef GENERATED_PLUGIN_REGISTRANT_
-#define GENERATED_PLUGIN_REGISTRANT_
-
-#include <flutter/plugin_registry.h>
-
-// Registers Flutter plugins.
-void RegisterPlugins(flutter::PluginRegistry* registry);
-
-#endif  // GENERATED_PLUGIN_REGISTRANT_

cw_bitcoin_cash/windows/flutter/generated_plugins.cmake

@@ -1,23 +0,0 @@
-#
-# Generated file, do not edit.
-#
-
-list(APPEND FLUTTER_PLUGIN_LIST
-)
-
-list(APPEND FLUTTER_FFI_PLUGIN_LIST
-)
-
-set(PLUGIN_BUNDLED_LIBRARIES)
-
-foreach(plugin ${FLUTTER_PLUGIN_LIST})
-  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin})
-  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
-endforeach(plugin)
-
-foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
-  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/windows plugins/${ffi_plugin})
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
-endforeach(ffi_plugin)

cw_core/lib/currency_for_wallet_type.dart

@@ -19,6 +19,8 @@ CryptoCurrency currencyForWalletType(WalletType type) {
       return CryptoCurrency.nano;
     case WalletType.banano:
       return CryptoCurrency.banano;
+    case WalletType.polygon:
+      return CryptoCurrency.maticpoly;
     default:
       throw Exception('Unexpected wallet type: ${type.toString()} for CryptoCurrency currencyForWalletType');
   }

cw_core/lib/erc20_token.dart

@@ -58,6 +58,7 @@ class Erc20Token extends CryptoCurrency with HiveObjectMixin {
 
   static const typeId = ERC20_TOKEN_TYPE_ID;
   static const boxName = 'Erc20Tokens';
+  static const polygonBoxName = ' PolygonErc20Tokens';
 
   @override
   bool operator ==(other) => (other is Erc20Token && other.contractAddress == contractAddress) ||

cw_core/lib/get_height_by_date.dart

@@ -84,7 +84,44 @@ final dates = {
   "2020-8": 2153983,
   "2020-9": 2176466,
   "2020-10": 2198453,
-  "2020-11": 2220000
+  "2020-11": 2220000,
+  "2020-12": 2242240,
+  "2021-1": 2264584,
+  "2021-2": 2286892,
+  "2021-3": 2307079,
+  "2021-4": 2329385,
+  "2021-5": 2351004,
+  "2021-6": 2373306,
+  "2021-7": 2394882,
+  "2021-8": 2417162,
+  "2021-9": 2439490,
+  "2021-10": 2461020,
+  "2021-11": 2483377,
+  "2021-12": 2504932,
+  "2022-1": 2527316,
+  "2022-2": 2549605,
+  "2022-3": 2569711,
+  "2022-4": 2591995,
+  "2022-5": 2613603,
+  "2022-6": 2635840,
+  "2022-7": 2657395,
+  "2022-8": 2679705,
+  "2022-9": 2701991,
+  "2022-10": 2723607,
+  "2022-11": 2745899,
+  "2022-12": 2767427,
+  "2023-1": 2789763,
+  "2023-2": 2811996,
+  "2023-3": 2832118,
+  "2023-4": 2854365,
+  "2023-5": 2875972,
+  "2023-6": 2898234,
+  "2023-7": 2919771,
+  "2023-8": 2942045,
+  "2023-9": 2964280,
+  "2023-10": 2985937,
+  "2023-11": 3008178,
+  "2023-12": 3029759
 };
 
 int getMoneroHeigthByDate({required DateTime date}) {

cw_core/lib/node.dart

@@ -6,7 +6,7 @@ import 'package:hive/hive.dart';
 import 'package:cw_core/hive_type_ids.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:http/io_client.dart' as ioc;
-import 'package:tor/tor.dart';
+// import 'package:tor/tor.dart';
 
 part 'node.g.dart';
 
@@ -88,6 +88,8 @@ class Node extends HiveObject with Keyable {
         } else {
           return Uri.http(uriRaw, '');
         }
+      case WalletType.polygon:
+        return Uri.https(uriRaw, '');
       default:
         throw Exception('Unexpected type ${type.toString()} for Node uri');
     }
@@ -146,6 +148,8 @@ class Node extends HiveObject with Keyable {
         case WalletType.nano:
         case WalletType.banano:
           return requestNanoNode();
+        case WalletType.polygon:
+          return requestElectrumServer();
         default:
           return false;
       }
@@ -210,14 +214,17 @@ class Node extends HiveObject with Keyable {
   }
 
   Future<bool> requestNodeWithProxy() async {
-    if (!isValidProxyAddress && !Tor.instance.enabled) {
+    if (!isValidProxyAddress/* && !Tor.instance.enabled*/) {
       return false;
     }
 
     String? proxy = socksProxyAddress;
 
-    if ((proxy?.isEmpty ?? true) && Tor.instance.enabled) {
+    // if ((proxy?.isEmpty ?? true) && Tor.instance.enabled) {
-      proxy = "${InternetAddress.loopbackIPv4.address}:${Tor.instance.port}";
+    //   proxy = "${InternetAddress.loopbackIPv4.address}:${Tor.instance.port}";
+    // }
+    if (proxy == null) {
+      return false;
     }
     final proxyAddress = proxy!.split(':')[0];
     final proxyPort = int.parse(proxy.split(':')[1]);

cw_core/lib/utils/file.dart

@@ -2,17 +2,8 @@ import 'dart:io';
 import 'package:cw_core/key.dart';
 import 'package:encrypt/encrypt.dart' as encrypt;
 
-Future<void> write(
+Future<void> write({required String path, required String password, required String data}) async =>
-    {required String path,
+    writeData(path: path, password: password, data: data);
-    required String password,
-    required String data}) async {
-  final keys = extractKeys(password);
-  final key = encrypt.Key.fromBase64(keys.first);
-  final iv = encrypt.IV.fromBase64(keys.last);
-  final encrypted = await encode(key: key, iv: iv, data: data);
-  final f = File(path);
-  f.writeAsStringSync(encrypted);
-}
 
 Future<void> writeData(
     {required String path,

cw_core/lib/wallet_base.dart

@@ -44,6 +44,8 @@ abstract class WalletBase<BalanceType extends Balance, HistoryType extends Trans
 
   String? get privateKey => null;
 
+  String? get hexSeed => null;
+
   Object get keys;
 
   WalletAddresses get walletAddresses;

cw_core/lib/wallet_type.dart

@@ -13,6 +13,7 @@ const walletTypes = [
   WalletType.bitcoinCash,
   WalletType.nano,
   WalletType.banano,
+  WalletType.polygon,
 ];
 
 @HiveType(typeId: WALLET_TYPE_TYPE_ID)
@@ -44,6 +45,8 @@ enum WalletType {
   @HiveField(8)
   bitcoinCash,
 
+  @HiveField(9)
+  polygon
 }
 
 int serializeToInt(WalletType type) {
@@ -64,6 +67,8 @@ int serializeToInt(WalletType type) {
       return 6;
     case WalletType.bitcoinCash:
       return 7;
+    case WalletType.polygon:
+      return 8;
     default:
       return -1;
   }
@@ -87,6 +92,8 @@ WalletType deserializeFromInt(int raw) {
       return WalletType.banano;
     case 7:
       return WalletType.bitcoinCash;
+    case 8:
+      return WalletType.polygon;
     default:
       throw Exception('Unexpected token: $raw for WalletType deserializeFromInt');
   }
@@ -110,6 +117,8 @@ String walletTypeToString(WalletType type) {
       return 'Nano';
     case WalletType.banano:
       return 'Banano';
+    case WalletType.polygon:
+      return 'Polygon';
     default:
       return '';
   }
@@ -133,6 +142,8 @@ String walletTypeToDisplayName(WalletType type) {
       return 'Nano (XNO)';
     case WalletType.banano:
       return 'Banano (BAN)';
+    case WalletType.polygon:
+      return 'Polygon (MATIC)';
     default:
       return '';
   }
@@ -156,7 +167,10 @@ CryptoCurrency walletTypeToCryptoCurrency(WalletType type) {
       return CryptoCurrency.nano;
     case WalletType.banano:
       return CryptoCurrency.banano;
+    case WalletType.polygon:
+      return CryptoCurrency.maticpoly;
     default:
-      throw Exception('Unexpected wallet type: ${type.toString()} for CryptoCurrency walletTypeToCryptoCurrency');
+      throw Exception(
+          'Unexpected wallet type: ${type.toString()} for CryptoCurrency walletTypeToCryptoCurrency');
   }
 }

cw_core/pubspec.lock

@@ -271,10 +271,10 @@ packages:
     dependency: "direct dev"
     description:
       name: hive_generator
-      sha256: "81fd20125cb2ce8fd23623d7744ffbaf653aae93706c9bd3bf7019ea0ace3938"
+      sha256: "06cb8f58ace74de61f63500564931f9505368f45f98958bd7a6c35ba24159db4"
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.3"
+    version: "2.0.1"
   http:
     dependency: "direct main"
     description:

cw_core/pubspec.yaml

@@ -20,10 +20,10 @@ dependencies:
   intl: ^0.18.0
   encrypt: ^5.0.1
   socks5_proxy: ^1.0.4
-  tor:
+#  tor:
-    git:
+#    git:
-      url: https://github.com/cake-tech/tor.git
+#      url: https://github.com/cake-tech/tor.git
-      ref: main
+#      ref: main
 
 dev_dependencies:
   flutter_test:
@@ -31,7 +31,7 @@ dev_dependencies:
   build_runner: ^2.1.11
   build_resolvers: ^2.0.9
   mobx_codegen: ^2.0.7
-  hive_generator: ^1.1.3
+  hive_generator: ^2.0.1
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec

cw_ethereum/lib/ethereum_client.dart

@@ -15,12 +15,12 @@ import 'package:cw_ethereum/ethereum_transaction_priority.dart';
 import 'package:cw_ethereum/.secrets.g.dart' as secrets;
 
 class EthereumClient {
-  final _httpClient = Client();
+  final httpClient = Client();
   Web3Client? _client;
 
   bool connect(Node node) {
     try {
-      _client = Web3Client(node.uri.toString(), _httpClient);
+      _client = Web3Client(node.uri.toString(), httpClient);
 
       return true;
     } catch (e) {
@@ -74,9 +74,11 @@ class EthereumClient {
     required int exponent,
     String? contractAddress,
   }) async {
-    assert(currency == CryptoCurrency.eth || contractAddress != null);
+    assert(currency == CryptoCurrency.eth ||
+        currency == CryptoCurrency.maticpoly ||
+        contractAddress != null);
 
-    bool _isEthereum = currency == CryptoCurrency.eth;
+    bool _isEVMCompatibleChain = currency == CryptoCurrency.eth || currency == CryptoCurrency.maticpoly;
 
     final price = _client!.getGasPrice();
 
@@ -84,19 +86,23 @@ class EthereumClient {
       from: privateKey.address,
       to: EthereumAddress.fromHex(toAddress),
       maxPriorityFeePerGas: EtherAmount.fromInt(EtherUnit.gwei, priority.tip),
-      value: _isEthereum ? EtherAmount.inWei(BigInt.parse(amount)) : EtherAmount.zero(),
+      value: _isEVMCompatibleChain ? EtherAmount.inWei(BigInt.parse(amount)) : EtherAmount.zero(),
     );
 
-    final signedTransaction = await _client!.signTransaction(privateKey, transaction);
+    final chainId = _getChainIdForCurrency(currency);
+
+    final signedTransaction =
+        await _client!.signTransaction(privateKey, transaction, chainId: chainId);
 
     final Function _sendTransaction;
 
-    if (_isEthereum) {
+    if (_isEVMCompatibleChain) {
       _sendTransaction = () async => await sendTransaction(signedTransaction);
     } else {
       final erc20 = ERC20(
         client: _client!,
         address: EthereumAddress.fromHex(contractAddress!),
+        chainId: chainId,
       );
 
       _sendTransaction = () async {
@@ -118,6 +124,16 @@ class EthereumClient {
     );
   }
 
+  int _getChainIdForCurrency(CryptoCurrency currency) {
+    switch (currency) {
+      case CryptoCurrency.maticpoly:
+        return 137;
+      case CryptoCurrency.eth:
+      default:
+        return 1;
+    }
+  }
+
   Future<String> sendTransaction(Uint8List signedTransaction) async =>
       await _client!.sendRawTransaction(prependTransactionType(0x02, signedTransaction));
 
@@ -198,7 +214,7 @@ I/flutter ( 4474): Gas Used: 53000
   Future<List<EthereumTransactionModel>> fetchTransactions(String address,
       {String? contractAddress}) async {
     try {
-      final response = await _httpClient.get(Uri.https("api.etherscan.io", "/api", {
+      final response = await httpClient.get(Uri.https("api.etherscan.io", "/api", {
         "module": "account",
         "action": contractAddress != null ? "tokentx" : "txlist",
         if (contractAddress != null) "contractaddress": contractAddress,

cw_ethereum/lib/ethereum_transaction_info.dart

@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:cw_core/format_amount.dart';
 import 'package:cw_core/transaction_direction.dart';
 import 'package:cw_core/transaction_info.dart';
@@ -34,8 +36,10 @@ class EthereumTransactionInfo extends TransactionInfo {
   final String? to;
 
   @override
-  String amountFormatted() =>
+  String amountFormatted() {
-      '${formatAmount((ethAmount / BigInt.from(10).pow(exponent)).toString())} $tokenSymbol';
+    final amount = formatAmount((ethAmount / BigInt.from(10).pow(exponent)).toString());
+    return '${amount.substring(0, min(10, amount.length))} $tokenSymbol';
+  }
 
   @override
   String fiatAmount() => _fiatAmount ?? '';
@@ -44,7 +48,10 @@ class EthereumTransactionInfo extends TransactionInfo {
   void changeFiatAmount(String amount) => _fiatAmount = formatAmount(amount);
 
   @override
-  String feeFormatted() => '${(ethFee / BigInt.from(10).pow(18)).toString()} ETH';
+  String feeFormatted() {
+    final amount = (ethFee / BigInt.from(10).pow(18)).toString();
+    return '${amount.substring(0, min(10, amount.length))} ETH';
+  }
 
   factory EthereumTransactionInfo.fromJson(Map<String, dynamic> data) {
     return EthereumTransactionInfo(

cw_ethereum/lib/ethereum_transaction_model.dart

@@ -1,3 +1,4 @@
+//! Model used for in parsing transactions fetched using etherscan
 class EthereumTransactionModel {
   final DateTime date;
   final String hash;

cw_ethereum/lib/pending_ethereum_transaction.dart

@@ -21,8 +21,8 @@ class PendingEthereumTransaction with PendingTransaction {
 
   @override
   String get amountFormatted {
-    final _amount = BigInt.parse(amount) / BigInt.from(pow(10, exponent));
+    final _amount = (BigInt.parse(amount) / BigInt.from(pow(10, exponent))).toString();
-    return _amount.toStringAsFixed(min(15, _amount.toString().length));
+    return _amount.substring(0, min(10, _amount.length));
   }
 
   @override
@@ -30,8 +30,8 @@ class PendingEthereumTransaction with PendingTransaction {
 
   @override
   String get feeFormatted {
-    final _fee = fee / BigInt.from(pow(10, 18));
+    final _fee = (fee / BigInt.from(pow(10, 18))).toString();
-    return _fee.toStringAsFixed(min(15, _fee.toString().length));
+    return _fee.substring(0, min(10, _fee.length));
   }
 
   @override

cw_ethereum/pubspec.yaml

@@ -17,7 +17,6 @@ dependencies:
   mobx: ^2.0.7+4
   bip39: ^1.0.6
   bip32: ^2.0.0
-  ed25519_hd_key: ^2.2.0
   hex: ^0.2.0
   http: ^1.1.0
   shared_preferences: ^2.0.15

cw_monero/example/pubspec.lock

@@ -301,10 +301,19 @@ packages:
     dependency: transitive
     description:
       name: pointycastle
-      sha256: db7306cf0249f838d1a24af52b5a5887c5bf7f31d8bb4e827d071dc0939ad346
+      sha256: "7c1e5f0d23c9016c5bbd8b1473d0d3fb3fc851b876046039509e18e0c7485f2c"
       url: "https://pub.dev"
     source: hosted
-    version: "3.6.2"
+    version: "3.7.3"
+  polyseed:
+    dependency: transitive
+    description:
+      path: "."
+      ref: HEAD
+      resolved-ref: "504d58a5b147fccd3bc85a25f2e72fb32771ddd7"
+      url: "https://github.com/cake-tech/polyseed_dart.git"
+    source: git
+    version: "0.0.1"
   process:
     dependency: transitive
     description:
@@ -416,5 +425,5 @@ packages:
     source: hosted
     version: "0.2.0+3"
 sdks:
-  dart: ">=3.0.0 <4.0.0"
+  dart: ">=3.0.6 <4.0.0"
   flutter: ">=3.7.0"

cw_monero/ios/Classes/monero_api.cpp

@@ -374,6 +374,35 @@ extern "C"
         return true;
     }
 
+    bool restore_wallet_from_spend_key(char *path, char *password, char *seed, char *language, char *spendKey, int32_t networkType, uint64_t restoreHeight, char *error)
+    {
+        Monero::NetworkType _networkType = static_cast<Monero::NetworkType>(networkType);
+        Monero::Wallet *wallet = Monero::WalletManagerFactory::getWalletManager()->createDeterministicWalletFromSpendKey(
+            std::string(path),
+            std::string(password),
+            std::string(language),
+            _networkType,
+            (uint64_t)restoreHeight,
+            std::string(spendKey));
+
+        // Cache Raw to support Polyseed
+        wallet->setCacheAttribute("cakewallet.seed", std::string(seed));
+
+        int status;
+        std::string errorString;
+
+        wallet->statusWithErrorString(status, errorString);
+
+        if (status != Monero::Wallet::Status_Ok || !errorString.empty())
+        {
+            error = strdup(errorString.c_str());
+            return false;
+        }
+
+        change_current_wallet(wallet);
+        return true;
+    }
+
     bool load_wallet(char *path, char *password, int32_t nettype)
     {
         nice(19);
@@ -438,6 +467,11 @@ extern "C"
 
     const char *seed()
     {
+        std::string _rawSeed = get_current_wallet()->getCacheAttribute("cakewallet.seed");
+        if (!_rawSeed.empty())
+        {
+            return strdup(_rawSeed.c_str());
+        }
         return strdup(get_current_wallet()->seed().c_str());
     }
 
@@ -892,6 +926,8 @@ extern "C"
         return m_wallet->trustedDaemon();
     }
 
+    // Coin Control //
+
     CoinsInfoRow* coin(int index)
     {
         if (index >= 0 && index < m_coins_info.size()) {
@@ -986,6 +1022,13 @@ extern "C"
         m_coins->thaw(index);
     }
 
+    // Sign Messages //
+
+    char *sign_message(char *message, char *address = "")
+    {
+        return strdup(get_current_wallet()->signMessage(std::string(message), std::string(address)).c_str());
+    }
+
 #ifdef __cplusplus
 }
 #endif

cw_monero/ios/Classes/monero_api.h

@@ -32,6 +32,7 @@ void store(char *path);
 
 void set_trusted_daemon(bool arg);
 bool trusted_daemon();
+char *sign_message(char *message, char *address);
 
 #ifdef __cplusplus
 }

cw_monero/lib/api/signatures.dart

@@ -14,6 +14,9 @@ typedef restore_wallet_from_seed = Int8 Function(
 typedef restore_wallet_from_keys = Int8 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>,
     Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, Int32, Int64, Pointer<Utf8>);
 
+typedef restore_wallet_from_spend_key = Int8 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>,
+    Pointer<Utf8>, Pointer<Utf8>, Int32, Int64, Pointer<Utf8>);
+
 typedef is_wallet_exist = Int8 Function(Pointer<Utf8>);
 
 typedef load_wallet = Int8 Function(Pointer<Utf8>, Pointer<Utf8>, Int8);
@@ -146,3 +149,5 @@ typedef coin = Pointer<CoinsInfoRow> Function(Int32 index);
 typedef freeze_coin = Void Function(Int32 index);
 
 typedef thaw_coin = Void Function(Int32 index);
+
+typedef sign_message = Pointer<Utf8> Function(Pointer<Utf8> message, Pointer<Utf8> address);

cw_monero/lib/api/types.dart

@@ -14,6 +14,9 @@ typedef RestoreWalletFromSeed = int Function(
 typedef RestoreWalletFromKeys = int Function(Pointer<Utf8>, Pointer<Utf8>,
     Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, int, int, Pointer<Utf8>);
 
+typedef RestoreWalletFromSpendKey = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>,
+    Pointer<Utf8>, Pointer<Utf8>, int, int, Pointer<Utf8>);
+
 typedef IsWalletExist = int Function(Pointer<Utf8>);
 
 typedef LoadWallet = int Function(Pointer<Utf8>, Pointer<Utf8>, int);
@@ -146,3 +149,5 @@ typedef GetCoin = Pointer<CoinsInfoRow> Function(int);
 typedef FreezeCoin = void Function(int);
 
 typedef ThawCoin = void Function(int);
+
+typedef SignMessage = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>);

cw_monero/lib/api/wallet.dart

@@ -8,7 +8,6 @@ import 'package:cw_monero/api/types.dart';
 import 'package:cw_monero/api/monero_api.dart';
 import 'package:cw_monero/api/exceptions/setup_wallet_exception.dart';
 import 'package:flutter/foundation.dart';
-import 'package:flutter/services.dart';
 
 int _boolToInt(bool value) => value ? 1 : 0;
 
@@ -128,6 +127,10 @@ final trustedDaemonNative = moneroApi
     .lookup<NativeFunction<trusted_daemon>>('trusted_daemon')
     .asFunction<TrustedDaemon>();
 
+final signMessageNative = moneroApi
+    .lookup<NativeFunction<sign_message>>('sign_message')
+    .asFunction<SignMessage>();
+
 int getSyncingHeight() => getSyncingHeightNative();
 
 bool isNeededToRefresh() => isNeededToRefreshNative() != 0;
@@ -296,7 +299,7 @@ class SyncListener {
 
       final bchHeight = await getNodeHeightOrUpdate(syncHeight);
 
-      if (_lastKnownBlockHeight == syncHeight || syncHeight == null) {
+      if (_lastKnownBlockHeight == syncHeight) {
         return;
       }
 
@@ -311,7 +314,7 @@ class SyncListener {
       }
 
       // 1. Actual new height; 2. Blocks left to finish; 3. Progress in percents;
-      onNewBlock?.call(syncHeight, left, ptc);
+      onNewBlock.call(syncHeight, left, ptc);
     });
   }
 
@@ -383,3 +386,14 @@ String getSubaddressLabel(int accountIndex, int addressIndex) {
 Future setTrustedDaemon(bool trusted) async => setTrustedDaemonNative(_boolToInt(trusted));
 
 Future<bool> trustedDaemon() async => trustedDaemonNative() != 0;
+
+String signMessage(String message, {String address = ""}) {
+  final messagePointer = message.toNativeUtf8();
+  final addressPointer = address.toNativeUtf8();
+
+  final signature = convertUTF8ToString(pointer: signMessageNative(messagePointer, addressPointer));
+  calloc.free(messagePointer);
+  calloc.free(addressPointer);
+
+  return signature;
+}

cw_monero/lib/api/wallet_manager.dart

@@ -1,15 +1,16 @@
 import 'dart:ffi';
-import 'package:ffi/ffi.dart';
+
-import 'package:flutter/foundation.dart';
 import 'package:cw_monero/api/convert_utf8_to_string.dart';
-import 'package:cw_monero/api/signatures.dart';
-import 'package:cw_monero/api/types.dart';
-import 'package:cw_monero/api/monero_api.dart';
-import 'package:cw_monero/api/wallet.dart';
-import 'package:cw_monero/api/exceptions/wallet_opening_exception.dart';
 import 'package:cw_monero/api/exceptions/wallet_creation_exception.dart';
+import 'package:cw_monero/api/exceptions/wallet_opening_exception.dart';
 import 'package:cw_monero/api/exceptions/wallet_restore_from_keys_exception.dart';
 import 'package:cw_monero/api/exceptions/wallet_restore_from_seed_exception.dart';
+import 'package:cw_monero/api/monero_api.dart';
+import 'package:cw_monero/api/signatures.dart';
+import 'package:cw_monero/api/types.dart';
+import 'package:cw_monero/api/wallet.dart';
+import 'package:ffi/ffi.dart';
+import 'package:flutter/foundation.dart';
 
 final createWalletNative = moneroApi
     .lookup<NativeFunction<create_wallet>>('create_wallet')
@@ -25,6 +26,11 @@ final restoreWalletFromKeysNative = moneroApi
         'restore_wallet_from_keys')
     .asFunction<RestoreWalletFromKeys>();
 
+final restoreWalletFromSpendKeyNative = moneroApi
+    .lookup<NativeFunction<restore_wallet_from_spend_key>>(
+    'restore_wallet_from_spend_key')
+    .asFunction<RestoreWalletFromSpendKey>();
+
 final isWalletExistNative = moneroApi
     .lookup<NativeFunction<is_wallet_exist>>('is_wallet_exist')
     .asFunction<IsWalletExist>();
@@ -141,6 +147,44 @@ void restoreWalletFromKeysSync(
   }
 }
 
+void restoreWalletFromSpendKeySync(
+    {required String path,
+      required String password,
+      required String seed,
+      required String language,
+      required String spendKey,
+      int nettype = 0,
+      int restoreHeight = 0}) {
+  final pathPointer = path.toNativeUtf8();
+  final passwordPointer = password.toNativeUtf8();
+  final seedPointer = seed.toNativeUtf8();
+  final languagePointer = language.toNativeUtf8();
+  final spendKeyPointer = spendKey.toNativeUtf8();
+  final errorMessagePointer = ''.toNativeUtf8();
+  final isWalletRestored = restoreWalletFromSpendKeyNative(
+      pathPointer,
+      passwordPointer,
+      seedPointer,
+      languagePointer,
+      spendKeyPointer,
+      nettype,
+      restoreHeight,
+      errorMessagePointer) !=
+      0;
+
+  calloc.free(pathPointer);
+  calloc.free(passwordPointer);
+  calloc.free(languagePointer);
+  calloc.free(spendKeyPointer);
+
+  storeSync();
+
+  if (!isWalletRestored) {
+    throw WalletRestoreFromKeysException(
+        message: convertUTF8ToString(pointer: errorMessagePointer));
+  }
+}
+
 void loadWallet({
   required String path,
   required String password,
@@ -194,6 +238,23 @@ void _restoreFromKeys(Map<String, dynamic> args) {
       spendKey: spendKey);
 }
 
+void _restoreFromSpendKey(Map<String, dynamic> args) {
+  final path = args['path'] as String;
+  final password = args['password'] as String;
+  final seed = args['seed'] as String;
+  final language = args['language'] as String;
+  final spendKey = args['spendKey'] as String;
+  final restoreHeight = args['restoreHeight'] as int;
+
+  restoreWalletFromSpendKeySync(
+      path: path,
+      password: password,
+      seed: seed,
+      language: language,
+      restoreHeight: restoreHeight,
+      spendKey: spendKey);
+}
+
 Future<void> _openWallet(Map<String, String> args) async =>
     loadWallet(path: args['path'] as String, password: args['password'] as String);
 
@@ -251,4 +312,22 @@ Future<void> restoreFromKeys(
       'restoreHeight': restoreHeight
     });
 
+Future<void> restoreFromSpendKey(
+    {required String path,
+      required String password,
+      required String seed,
+      required String language,
+      required String spendKey,
+      int nettype = 0,
+      int restoreHeight = 0}) async =>
+    compute<Map<String, Object>, void>(_restoreFromSpendKey, {
+      'path': path,
+      'password': password,
+      'seed': seed,
+      'language': language,
+      'spendKey': spendKey,
+      'nettype': nettype,
+      'restoreHeight': restoreHeight
+    });
+
 Future<bool> isWalletExist({required String path}) => compute(_isWalletExist, path);

cw_monero/lib/monero_wallet.dart

@@ -29,6 +29,7 @@ import 'package:cw_monero/monero_transaction_info.dart';
 import 'package:cw_monero/monero_unspent.dart';
 import 'package:cw_monero/monero_wallet_addresses.dart';
 import 'package:cw_monero/pending_monero_transaction.dart';
+import 'package:flutter/foundation.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
 
@@ -78,6 +79,8 @@ abstract class MoneroWalletBase
 
   Box<UnspentCoinsInfo> unspentCoinsInfo;
 
+  void Function(FlutterErrorDetails)? _onError;
+
   @override
   late MoneroWalletAddresses walletAddresses;
 
@@ -388,46 +391,59 @@ abstract class MoneroWalletBase
   }
 
   Future<void> updateUnspent() async {
-    refreshCoins(walletAddresses.account!.id);
+    try {
+      refreshCoins(walletAddresses.account!.id);
 
-    unspentCoins.clear();
+      unspentCoins.clear();
 
-    final coinCount = countOfCoins();
+      final coinCount = countOfCoins();
-    for (var i = 0; i < coinCount; i++) {
+      for (var i = 0; i < coinCount; i++) {
-      final coin = getCoin(i);
+        final coin = getCoin(i);
-      if (coin.spent == 0) {
+        if (coin.spent == 0) {
-        final unspent = MoneroUnspent.fromCoinsInfoRow(coin);
+          final unspent = MoneroUnspent.fromCoinsInfoRow(coin);
-        unspent.isChange = transaction_history.getTransaction(unspent.hash).direction == 1;
+          if (unspent.hash.isNotEmpty) {
-        unspentCoins.add(unspent);
+            unspent.isChange = transaction_history
-      }
+                .getTransaction(unspent.hash)
-    }
+                .direction == 1;
-
+          }
-    if (unspentCoinsInfo.isEmpty) {
+          unspentCoins.add(unspent);
-      unspentCoins.forEach((coin) => _addCoinInfo(coin));
-      return;
-    }
-
-    if (unspentCoins.isNotEmpty) {
-      unspentCoins.forEach((coin) {
-        final coinInfoList = unspentCoinsInfo.values.where((element) =>
-            element.walletId.contains(id) &&
-            element.accountIndex == walletAddresses.account!.id &&
-            element.keyImage!.contains(coin.keyImage!));
-
-        if (coinInfoList.isNotEmpty) {
-          final coinInfo = coinInfoList.first;
-
-          coin.isFrozen = coinInfo.isFrozen;
-          coin.isSending = coinInfo.isSending;
-          coin.note = coinInfo.note;
-        } else {
-          _addCoinInfo(coin);
         }
-      });
+      }
-    }
 
-    await _refreshUnspentCoinsInfo();
+      if (unspentCoinsInfo.isEmpty) {
-    _askForUpdateBalance();
+        unspentCoins.forEach((coin) => _addCoinInfo(coin));
+        return;
+      }
+
+      if (unspentCoins.isNotEmpty) {
+        unspentCoins.forEach((coin) {
+          final coinInfoList = unspentCoinsInfo.values.where((element) =>
+          element.walletId.contains(id) &&
+              element.accountIndex == walletAddresses.account!.id &&
+              element.keyImage!.contains(coin.keyImage!));
+
+          if (coinInfoList.isNotEmpty) {
+            final coinInfo = coinInfoList.first;
+
+            coin.isFrozen = coinInfo.isFrozen;
+            coin.isSending = coinInfo.isSending;
+            coin.note = coinInfo.note;
+          } else {
+            _addCoinInfo(coin);
+          }
+        });
+      }
+
+      await _refreshUnspentCoinsInfo();
+      _askForUpdateBalance();
+    } catch (e, s) {
+      print(e.toString());
+      _onError?.call(FlutterErrorDetails(
+        exception: e,
+        stack: s,
+        library: this.runtimeType.toString(),
+      ));
+    }
   }
 
   Future<void> _addCoinInfo(MoneroUnspent coin) async {
@@ -632,4 +648,13 @@ abstract class MoneroWalletBase
       walletAddresses.updateSubaddressList(accountIndex: account?.id ?? 0);
     }
   }
+
+  @override
+  void setExceptionHandler(void Function(FlutterErrorDetails) onError) => _onError = onError;
+
+  @override
+  String signMessage(String message, {String? address}) {
+    final useAddress = address ?? "";
+    return monero_wallet.signMessage(message, address: useAddress);
+  }
 }

cw_monero/lib/monero_wallet_service.dart

@@ -7,16 +7,19 @@ import 'package:cw_core/wallet_credentials.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:cw_core/wallet_service.dart';
 import 'package:cw_core/wallet_type.dart';
+import 'package:cw_core/get_height_by_date.dart';
 import 'package:cw_monero/api/exceptions/wallet_opening_exception.dart';
 import 'package:cw_monero/api/wallet_manager.dart' as monero_wallet_manager;
 import 'package:cw_monero/monero_wallet.dart';
 import 'package:hive/hive.dart';
+import 'package:polyseed/polyseed.dart';
 
 class MoneroNewWalletCredentials extends WalletCredentials {
-  MoneroNewWalletCredentials({required String name, required this.language, String? password})
+  MoneroNewWalletCredentials({required String name, required this.language, required this.isPolyseed, String? password})
       : super(name: name, password: password);
 
   final String language;
+  final bool isPolyseed;
 }
 
 class MoneroRestoreWalletFromSeedCredentials extends WalletCredentials {
@@ -68,10 +71,21 @@ class MoneroWalletService extends WalletService<
   Future<MoneroWallet> create(MoneroNewWalletCredentials credentials) async {
     try {
       final path = await pathForWallet(name: credentials.name, type: getType());
+
+      if (credentials.isPolyseed) {
+        final polyseed = Polyseed.create();
+        final lang = PolyseedLang.getByEnglishName(credentials.language);
+
+        final heightOverride =
+            getMoneroHeigthByDate(date: DateTime.now().subtract(Duration(days: 2)));
+
+        return _restoreFromPolyseed(
+            path, credentials.password!, polyseed, credentials.walletInfo!, lang,
+            overrideHeight: heightOverride);
+      }
+
       await monero_wallet_manager.createWallet(
-          path: path,
+          path: path, password: credentials.password!, language: credentials.language);
-          password: credentials.password!,
-          language: credentials.language);
       final wallet = MoneroWallet(
           walletInfo: credentials.walletInfo!, unspentCoinsInfo: unspentCoinsInfoSource);
       await wallet.init();
@@ -215,6 +229,12 @@ class MoneroWalletService extends WalletService<
   @override
   Future<MoneroWallet> restoreFromSeed(
       MoneroRestoreWalletFromSeedCredentials credentials) async {
+
+    // Restore from Polyseed
+    if (Polyseed.isValidSeed(credentials.mnemonic)) {
+      return restoreFromPolyseed(credentials);
+    }
+
     try {
       final path = await pathForWallet(name: credentials.name, type: getType());
       await monero_wallet_manager.restoreFromSeed(
@@ -234,6 +254,47 @@ class MoneroWalletService extends WalletService<
     }
   }
 
+  Future<MoneroWallet> restoreFromPolyseed(MoneroRestoreWalletFromSeedCredentials credentials) async {
+    try {
+      final path = await pathForWallet(name: credentials.name, type: getType());
+      final polyseedCoin = PolyseedCoin.POLYSEED_MONERO;
+      final lang = PolyseedLang.getByPhrase(credentials.mnemonic);
+      final polyseed = Polyseed.decode(credentials.mnemonic, lang, polyseedCoin);
+
+      return _restoreFromPolyseed(path, credentials.password!, polyseed, credentials.walletInfo!, lang);
+    } catch (e) {
+      // TODO: Implement Exception for wallet list service.
+      print('MoneroWalletsManager Error: $e');
+      rethrow;
+    }
+  }
+
+  Future<MoneroWallet> _restoreFromPolyseed(String path, String password, Polyseed polyseed,
+      WalletInfo walletInfo, PolyseedLang lang,
+      {PolyseedCoin coin = PolyseedCoin.POLYSEED_MONERO, int? overrideHeight}) async {
+    final height = overrideHeight ?? getMoneroHeigthByDate(
+        date: DateTime.fromMillisecondsSinceEpoch(polyseed.birthday * 1000));
+    final spendKey = polyseed.generateKey(coin, 32).toHexString();
+    final seed = polyseed.encode(lang, coin);
+
+    walletInfo.isRecovery = true;
+    walletInfo.restoreHeight = height;
+
+    await monero_wallet_manager.restoreFromSpendKey(
+        path: path,
+        password: password,
+        seed: seed,
+        language: lang.nameEnglish,
+        restoreHeight: height,
+        spendKey: spendKey);
+
+    final wallet = MoneroWallet(
+        walletInfo: walletInfo, unspentCoinsInfo: unspentCoinsInfoSource);
+    await wallet.init();
+
+    return wallet;
+  }
+
   Future<void> repairOldAndroidWallet(String name) async {
     try {
       if (!Platform.isAndroid) {

cw_monero/macos/Classes/monero_api.cpp

@@ -234,7 +234,6 @@ extern "C"
         }
 
         void setUnlocked(bool unlocked);
-
     };
 
     Monero::Coins *m_coins;
@@ -375,6 +374,35 @@ extern "C"
         return true;
     }
 
+    bool restore_wallet_from_spend_key(char *path, char *password, char *seed, char *language, char *spendKey, int32_t networkType, uint64_t restoreHeight, char *error)
+    {
+        Monero::NetworkType _networkType = static_cast<Monero::NetworkType>(networkType);
+        Monero::Wallet *wallet = Monero::WalletManagerFactory::getWalletManager()->createDeterministicWalletFromSpendKey(
+            std::string(path),
+            std::string(password),
+            std::string(language),
+            _networkType,
+            (uint64_t)restoreHeight,
+            std::string(spendKey));
+
+        // Cache Raw to support Polyseed
+        wallet->setCacheAttribute("cakewallet.seed", std::string(seed));
+
+        int status;
+        std::string errorString;
+
+        wallet->statusWithErrorString(status, errorString);
+
+        if (status != Monero::Wallet::Status_Ok || !errorString.empty())
+        {
+            error = strdup(errorString.c_str());
+            return false;
+        }
+
+        change_current_wallet(wallet);
+        return true;
+    }
+
     bool load_wallet(char *path, char *password, int32_t nettype)
     {
         nice(19);
@@ -439,6 +467,11 @@ extern "C"
 
     const char *seed()
     {
+        std::string _rawSeed = get_current_wallet()->getCacheAttribute("cakewallet.seed");
+        if (!_rawSeed.empty())
+        {
+            return strdup(_rawSeed.c_str());
+        }
         return strdup(get_current_wallet()->seed().c_str());
     }
 
@@ -842,6 +875,12 @@ extern "C"
         return m_transaction_history->count();
     }
 
+    TransactionInfoRow* get_transaction(char * txId)
+    {
+        Monero::TransactionInfo *row = m_transaction_history->transaction(std::string(txId));
+        return new TransactionInfoRow(row);
+    }
+
     int LedgerExchange(
         unsigned char *command,
         unsigned int cmd_len,
@@ -971,6 +1010,22 @@ extern "C"
         return result;
     }
 
+    void freeze_coin(int index)
+    {
+        m_coins->setFrozen(index);
+    }
+
+    void thaw_coin(int index)
+    {
+        m_coins->thaw(index);
+    }
+
+    // Sign Messages //
+
+    char *sign_message(char *message, char *address = "")
+    {
+        return strdup(get_current_wallet()->signMessage(std::string(message), std::string(address)).c_str());
+    }
 
 #ifdef __cplusplus
 }

cw_monero/macos/Classes/monero_api.h

@@ -32,6 +32,7 @@ void store(char *path);
 
 void set_trusted_daemon(bool arg);
 bool trusted_daemon();
+char *sign_message(char *message, char *address);
 
 #ifdef __cplusplus
 }

cw_monero/pubspec.lock

@@ -266,6 +266,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.0"
+  hashlib:
+    dependency: transitive
+    description:
+      name: hashlib
+      sha256: "71bf102329ddb8e50c8a995ee4645ae7f1728bb65e575c17196b4d8262121a96"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.12.0"
+  hashlib_codecs:
+    dependency: transitive
+    description:
+      name: hashlib_codecs
+      sha256: "49e2a471f74b15f1854263e58c2ac11f2b631b5b12c836f9708a35397d36d626"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
   hive:
     dependency: transitive
     description:
@@ -478,10 +494,18 @@ packages:
     dependency: transitive
     description:
       name: pointycastle
-      sha256: db7306cf0249f838d1a24af52b5a5887c5bf7f31d8bb4e827d071dc0939ad346
+      sha256: "7c1e5f0d23c9016c5bbd8b1473d0d3fb3fc851b876046039509e18e0c7485f2c"
       url: "https://pub.dev"
     source: hosted
-    version: "3.6.2"
+    version: "3.7.3"
+  polyseed:
+    dependency: "direct main"
+    description:
+      name: polyseed
+      sha256: "9b48ec535b10863f78f6354ec983b4cc0c88ca69ff48fee469d0fd1954b01d4f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.0.2"
   pool:
     dependency: transitive
     description:
@@ -623,15 +647,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.1"
-  tor:
-    dependency: transitive
-    description:
-      path: "."
-      ref: main
-      resolved-ref: "09ba92cb11d4e3cacf97256e57863b805f79f2e5"
-      url: "https://github.com/cake-tech/tor.git"
-    source: git
-    version: "0.0.1"
   typed_data:
     dependency: transitive
     description:
@@ -689,5 +704,5 @@ packages:
     source: hosted
     version: "3.1.1"
 sdks:
-  dart: ">=3.0.0 <4.0.0"
+  dart: ">=3.0.6 <4.0.0"
   flutter: ">=3.7.0"

cw_monero/pubspec.yaml

@@ -19,6 +19,7 @@ dependencies:
   flutter_mobx: ^2.0.6+1
   intl: ^0.18.0
   encrypt: ^5.0.1
+  polyseed: ^0.0.2
   cw_core:
     path: ../cw_core
 

cw_nano/lib/nano_wallet.dart

@@ -58,13 +58,13 @@ abstract class NanoWalletBase
     }
   }
 
-  final String _mnemonic;
+  String _mnemonic;
   final String _password;
-  final DerivationType _derivationType;
+  DerivationType _derivationType;
 
   String? _privateKey;
   String? _publicAddress;
-  String? _seedKey;
+  String? _hexSeed;
 
   String? _representativeAddress;
   Timer? _receiveTimer;
@@ -85,22 +85,26 @@ abstract class NanoWalletBase
 
   // initialize the different forms of private / public key we'll need:
   Future<void> init() async {
+    if (_derivationType == DerivationType.unknown) {
+      _derivationType = DerivationType.nano;
+    }
     final String type = (_derivationType == DerivationType.nano) ? "standard" : "hd";
 
-    // our "mnemonic" is actually a seedkey:
+    // our "mnemonic" is actually a hex form seed:
     if (!_mnemonic.contains(' ')) {
-      _seedKey = _mnemonic;
+      _hexSeed = _mnemonic;
+      _mnemonic = "";
     }
 
-    if (_seedKey == null) {
+    if (_hexSeed == null) {
       if (_derivationType == DerivationType.nano) {
-        _seedKey = bip39.mnemonicToEntropy(_mnemonic).toUpperCase();
+        _hexSeed = bip39.mnemonicToEntropy(_mnemonic).toUpperCase();
       } else {
-        _seedKey = await NanoUtil.hdMnemonicListToSeed(_mnemonic.split(' '));
+        _hexSeed = await NanoUtil.hdMnemonicListToSeed(_mnemonic.split(' '));
       }
     }
-    _privateKey = await NanoUtil.uniSeedToPrivate(_seedKey!, 0, type);
+    _privateKey = await NanoUtil.uniSeedToPrivate(_hexSeed!, 0, type);
-    _publicAddress = await NanoUtil.uniSeedToAddress(_seedKey!, 0, type);
+    _publicAddress = await NanoUtil.uniSeedToAddress(_hexSeed!, 0, type);
     this.walletInfo.address = _publicAddress!;
 
     await walletAddresses.init();
@@ -182,9 +186,9 @@ abstract class NanoWalletBase
 
       final block = await _client.constructSendBlock(
         amountRaw: amt.toString(),
-        destinationAddress: credentials.outputs.first.isParsedAddress
+        destinationAddress: txOut.isParsedAddress
-            ? credentials.outputs.first.extractedAddress!
+            ? txOut.extractedAddress!
-            : credentials.outputs.first.address,
+            : txOut.address,
         privateKey: _privateKey!,
         balanceAfterTx: runningBalance,
         previousHash: previousHash,
@@ -275,11 +279,11 @@ abstract class NanoWalletBase
 
   @override
   NanoWalletKeys get keys {
-    return NanoWalletKeys(seedKey: _seedKey!);
+    return NanoWalletKeys(seedKey: _hexSeed!);
   }
 
   @override
-  String? get privateKey => _seedKey!;
+  String? get privateKey => _privateKey!;
 
   @override
   Future<void> rescan({required int height}) async {
@@ -297,7 +301,9 @@ abstract class NanoWalletBase
   }
 
   @override
-  String get seed => _mnemonic;
+  String? get seed => _mnemonic.isNotEmpty ? _mnemonic : null;
+
+  String get hexSeed => _hexSeed!;
 
   String get representative => _representativeAddress ?? "";
 
@@ -330,7 +336,7 @@ abstract class NanoWalletBase
   Future<String> makePath() async => pathForWallet(name: walletInfo.name, type: walletInfo.type);
 
   String toJSON() => json.encode({
-        'seedKey': _seedKey,
+        'seedKey': _hexSeed,
         'mnemonic': _mnemonic,
         'currentBalance': balance[currency]?.currentBalance.toString() ?? "0",
         'receivableBalance': balance[currency]?.receivableBalance.toString() ?? "0",
@@ -351,9 +357,9 @@ abstract class NanoWalletBase
         formattedCurrentBalance: data['currentBalance'] as String? ?? "0",
         formattedReceivableBalance: data['receivableBalance'] as String? ?? "0");
 
-    DerivationType derivationType = DerivationType.bip39;
+    DerivationType derivationType = DerivationType.nano;
-    if (data['derivationType'] == "DerivationType.nano") {
+    if (data['derivationType'] == "DerivationType.bip39") {
-      derivationType = DerivationType.nano;
+      derivationType = DerivationType.bip39;
     }
 
     walletInfo.derivationType = derivationType;
@@ -390,9 +396,9 @@ abstract class NanoWalletBase
   Future<void> regenerateAddress() async {
     final String type = (_derivationType == DerivationType.nano) ? "standard" : "hd";
     _privateKey =
-        await NanoUtil.uniSeedToPrivate(_seedKey!, this.walletAddresses.account!.id, type);
+        await NanoUtil.uniSeedToPrivate(_hexSeed!, this.walletAddresses.account!.id, type);
     _publicAddress =
-        await NanoUtil.uniSeedToAddress(_seedKey!, this.walletAddresses.account!.id, type);
+        await NanoUtil.uniSeedToAddress(_hexSeed!, this.walletAddresses.account!.id, type);
 
     this.walletInfo.address = _publicAddress!;
     this.walletAddresses.address = _publicAddress!;

cw_polygon/.gitignore

@@ -0,0 +1,30 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+.packages
+build/

cw_polygon/.metadata

@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+  channel: stable
+
+project_type: package

cw_polygon/CHANGELOG.md

@@ -0,0 +1,3 @@
+## 0.0.1
+
+* TODO: Describe initial release.

cw_polygon/LICENSE

@@ -0,0 +1 @@
+TODO: Add your license here.

cw_polygon/README.md

@@ -0,0 +1,39 @@
+<!--
+This README describes the package. If you publish this package to pub.dev,
+this README's contents appear on the landing page for your package.
+
+For information about how to write a good package README, see the guide for
+[writing package pages](https://dart.dev/guides/libraries/writing-package-pages).
+
+For general information about developing packages, see the Dart guide for
+[creating packages](https://dart.dev/guides/libraries/create-library-packages)
+and the Flutter guide for
+[developing packages and plugins](https://flutter.dev/developing-packages).
+-->
+
+TODO: Put a short description of the package here that helps potential users
+know whether this package might be useful for them.
+
+## Features
+
+TODO: List what your package can do. Maybe include images, gifs, or videos.
+
+## Getting started
+
+TODO: List prerequisites and provide or point to information on how to
+start using the package.
+
+## Usage
+
+TODO: Include short and useful examples for package users. Add longer examples
+to `/example` folder.
+
+```dart
+const like = 'sample';
+```
+
+## Additional information
+
+TODO: Tell users more about the package: where to find more information, how to
+contribute to the package, how to file issues, what response they can expect
+from the package authors, and more.

cw_polygon/analysis_options.yaml

@@ -0,0 +1,4 @@
+include: package:flutter_lints/flutter.yaml
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

cw_polygon/lib/cw_polygon.dart

@@ -0,0 +1,7 @@
+library cw_polygon;
+
+/// A Calculator.
+class Calculator {
+  /// Returns [value] plus 1.
+  int addOne(int value) => value + 1;
+}

cw_polygon/lib/default_erc20_tokens.dart

@@ -0,0 +1,86 @@
+import 'package:cw_core/crypto_currency.dart';
+import 'package:cw_core/erc20_token.dart';
+
+class DefaultPolygonErc20Tokens {
+  final List<Erc20Token> _defaultTokens = [
+    Erc20Token(
+      name: "Wrapped Ether",
+      symbol: "WETH",
+      contractAddress: "0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619",
+      decimal: 18,
+      enabled: false,
+    ),
+    Erc20Token(
+      name: "Tether USD (PoS)",
+      symbol: "USDT",
+      contractAddress: "0xc2132D05D31c914a87C6611C10748AEb04B58e8F",
+      decimal: 6,
+      enabled: true,
+    ),
+    Erc20Token(
+      name: "USD Coin",
+      symbol: "USDC",
+      contractAddress: "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
+      decimal: 6,
+      enabled: true,
+    ),
+    Erc20Token(
+      name: "USD Coin (POS)",
+      symbol: "USDC.e",
+      contractAddress: "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174",
+      decimal: 6,
+      enabled: false,
+    ),
+    Erc20Token(
+      name: "Avalanche Token",
+      symbol: "AVAX",
+      contractAddress: "0x2C89bbc92BD86F8075d1DEcc58C7F4E0107f286b",
+      decimal: 18,
+      enabled: false,
+    ),
+    Erc20Token(
+      name: "Wrapped BTC (PoS)",
+      symbol: "WBTC",
+      contractAddress: "0x1BFD67037B42Cf73acF2047067bd4F2C47D9BfD6",
+      decimal: 8,
+      enabled: false,
+    ),
+    Erc20Token(
+      name: "Dai (PoS)",
+      symbol: "DAI",
+      contractAddress: "0x8f3Cf7ad23Cd3CaDbD9735AFf958023239c6A063",
+      decimal: 18,
+      enabled: true,
+    ),
+    Erc20Token(
+      name: "SHIBA INU (PoS)",
+      symbol: "SHIB",
+      contractAddress: "0x6f8a06447Ff6FcF75d803135a7de15CE88C1d4ec",
+      decimal: 18,
+      enabled: false,
+    ),
+    Erc20Token(
+      name: "Uniswap (PoS)",
+      symbol: "UNI",
+      contractAddress: "0xb33EaAd8d922B1083446DC23f610c2567fB5180f",
+      decimal: 18,
+      enabled: false,
+    ),
+  ];
+
+  List<Erc20Token> get initialPolygonErc20Tokens => _defaultTokens.map((token) {
+        String? iconPath;
+        try {
+          iconPath = CryptoCurrency.all
+              .firstWhere((element) =>
+                  element.title.toUpperCase() == token.symbol.toUpperCase())
+              .iconPath;
+        } catch (_) {}
+
+        if (iconPath != null) {
+          return Erc20Token.copyWith(token, iconPath);
+        }
+
+        return token;
+      }).toList();
+}

cw_polygon/lib/pending_polygon_transaction.dart

@@ -0,0 +1,19 @@
+import 'dart:typed_data';
+
+import 'package:cw_ethereum/pending_ethereum_transaction.dart';
+
+class PendingPolygonTransaction extends PendingEthereumTransaction {
+  PendingPolygonTransaction({
+    required Function sendTransaction,
+    required Uint8List signedTransaction,
+    required BigInt fee,
+    required String amount,
+    required int exponent,
+  }) : super(
+          amount: amount,
+          sendTransaction: sendTransaction,
+          signedTransaction: signedTransaction,
+          fee: fee,
+          exponent: exponent,
+        );
+}

cw_polygon/lib/polygon_client.dart

@@ -0,0 +1,34 @@
+import 'dart:convert';
+
+import 'package:cw_ethereum/ethereum_client.dart';
+import 'package:cw_polygon/polygon_transaction_model.dart';
+import 'package:cw_ethereum/.secrets.g.dart' as secrets;
+
+class PolygonClient extends EthereumClient {
+  @override
+  Future<List<PolygonTransactionModel>> fetchTransactions(String address,
+      {String? contractAddress}) async {
+    try {
+      final response = await httpClient.get(Uri.https("api.polygonscan.com", "/api", {
+        "module": "account",
+        "action": contractAddress != null ? "tokentx" : "txlist",
+        if (contractAddress != null) "contractaddress": contractAddress,
+        "address": address,
+        "apikey": secrets.polygonScanApiKey,
+      }));
+
+      final jsonResponse = json.decode(response.body) as Map<String, dynamic>;
+
+      if (response.statusCode >= 200 && response.statusCode < 300 && jsonResponse['status'] != 0) {
+        return (jsonResponse['result'] as List)
+            .map((e) => PolygonTransactionModel.fromJson(e as Map<String, dynamic>))
+            .toList();
+      }
+
+      return [];
+    } catch (e) {
+      print(e);
+      return [];
+    }
+  }
+}

cw_polygon/lib/polygon_exceptions.dart

@@ -0,0 +1,6 @@
+import 'package:cw_core/crypto_currency.dart';
+import 'package:cw_ethereum/ethereum_exceptions.dart';
+
+class PolygonTransactionCreationException extends EthereumTransactionCreationException {
+  PolygonTransactionCreationException(CryptoCurrency currency) : super(currency);
+}

cw_polygon/lib/polygon_formatter.dart

@@ -0,0 +1,25 @@
+import 'package:intl/intl.dart';
+
+const polygonAmountLength = 12;
+const polygonAmountDivider = 1000000000000;
+final polygonAmountFormat = NumberFormat()
+  ..maximumFractionDigits = polygonAmountLength
+  ..minimumFractionDigits = 1;
+
+class PolygonFormatter {
+  static int parsePolygonAmount(String amount) {
+    try {
+      return (double.parse(amount) * polygonAmountDivider).round();
+    } catch (_) {
+      return 0;
+    }
+  }
+
+  static double parsePolygonAmountToDouble(int amount) {
+    try {
+      return amount / polygonAmountDivider;
+    } catch (_) {
+      return 0;
+    }
+  }
+}

cw_polygon/lib/polygon_mnemonics_exception.dart

@@ -0,0 +1,5 @@
+class PolygonMnemonicIsIncorrectException implements Exception {
+  @override
+  String toString() =>
+      'Polygon mnemonic has incorrect format. Mnemonic should contain 12 or 24 words separated by space.';
+}

cw_polygon/lib/polygon_transaction_credentials.dart

@@ -0,0 +1,18 @@
+import 'package:cw_core/crypto_currency.dart';
+import 'package:cw_core/output_info.dart';
+import 'package:cw_ethereum/ethereum_transaction_credentials.dart';
+import 'package:cw_polygon/polygon_transaction_priority.dart';
+
+class PolygonTransactionCredentials extends EthereumTransactionCredentials {
+  PolygonTransactionCredentials(
+    List<OutputInfo> outputs, {
+    required PolygonTransactionPriority? priority,
+    required CryptoCurrency currency,
+    final int? feeRate,
+  }) : super(
+          outputs,
+          currency: currency,
+          priority: priority,
+          feeRate: feeRate,
+        );
+}

cw_polygon/lib/polygon_transaction_history.dart

@@ -0,0 +1,77 @@
+import 'dart:convert';
+import 'dart:core';
+import 'package:cw_core/pathForWallet.dart';
+import 'package:cw_core/wallet_info.dart';
+import 'package:cw_ethereum/file.dart';
+import 'package:cw_polygon/polygon_transaction_info.dart';
+import 'package:mobx/mobx.dart';
+import 'package:cw_core/transaction_history.dart';
+
+part 'polygon_transaction_history.g.dart';
+
+const transactionsHistoryFileName = 'polygon_transactions.json';
+
+class PolygonTransactionHistory = PolygonTransactionHistoryBase with _$PolygonTransactionHistory;
+
+abstract class PolygonTransactionHistoryBase extends TransactionHistoryBase<PolygonTransactionInfo>
+    with Store {
+  PolygonTransactionHistoryBase({required this.walletInfo, required String password})
+      : _password = password {
+    transactions = ObservableMap<String, PolygonTransactionInfo>();
+  }
+
+  final WalletInfo walletInfo;
+  String _password;
+
+  Future<void> init() async => await _load();
+
+  @override
+  Future<void> save() async {
+    try {
+      final dirPath = await pathForWalletDir(name: walletInfo.name, type: walletInfo.type);
+      final path = '$dirPath/$transactionsHistoryFileName';
+      final data = json.encode({'transactions': transactions});
+      await writeData(path: path, password: _password, data: data);
+    } catch (e, s) {
+      print('Error while saving polygon  transaction history: ${e.toString()}');
+      print(s);
+    }
+  }
+
+  @override
+  void addOne(PolygonTransactionInfo transaction) => transactions[transaction.id] = transaction;
+
+  @override
+  void addMany(Map<String, PolygonTransactionInfo> transactions) =>
+      this.transactions.addAll(transactions);
+
+  Future<Map<String, dynamic>> _read() async {
+    final dirPath = await pathForWalletDir(name: walletInfo.name, type: walletInfo.type);
+    final path = '$dirPath/$transactionsHistoryFileName';
+    final content = await read(path: path, password: _password);
+    if (content.isEmpty) {
+      return {};
+    }
+    return json.decode(content) as Map<String, dynamic>;
+  }
+
+  Future<void> _load() async {
+    try {
+      final content = await _read();
+      final txs = content['transactions'] as Map<String, dynamic>? ?? {};
+
+      txs.entries.forEach((entry) {
+        final val = entry.value;
+
+        if (val is Map<String, dynamic>) {
+          final tx = PolygonTransactionInfo.fromJson(val);
+          _update(tx);
+        }
+      });
+    } catch (e) {
+      print(e);
+    }
+  }
+
+  void _update(PolygonTransactionInfo transaction) => transactions[transaction.id] = transaction;
+}

cw_polygon/lib/polygon_transaction_info.dart

@@ -0,0 +1,49 @@
+import 'package:cw_core/transaction_direction.dart';
+import 'package:cw_ethereum/ethereum_transaction_info.dart';
+
+class PolygonTransactionInfo extends EthereumTransactionInfo {
+  PolygonTransactionInfo({
+    required String id,
+    required int height,
+    required BigInt ethAmount,
+    int exponent = 18,
+    required TransactionDirection direction,
+    required DateTime date,
+    required bool isPending,
+    required BigInt ethFee,
+    required int confirmations,
+    String tokenSymbol = "MATIC",
+    required String? to,
+  }) : super(
+          confirmations: confirmations,
+          id: id,
+          height: height,
+          ethAmount: ethAmount,
+          exponent: exponent,
+          direction: direction,
+          date: date,
+          isPending: isPending,
+          ethFee: ethFee,
+          to: to,
+          tokenSymbol: tokenSymbol,
+        );
+
+  factory PolygonTransactionInfo.fromJson(Map<String, dynamic> data) {
+    return PolygonTransactionInfo(
+      id: data['id'] as String,
+      height: data['height'] as int,
+      ethAmount: BigInt.parse(data['amount']),
+      exponent: data['exponent'] as int,
+      ethFee: BigInt.parse(data['fee']),
+      direction: parseTransactionDirectionFromInt(data['direction'] as int),
+      date: DateTime.fromMillisecondsSinceEpoch(data['date'] as int),
+      isPending: data['isPending'] as bool,
+      confirmations: data['confirmations'] as int,
+      tokenSymbol: data['tokenSymbol'] as String,
+      to: data['to'],
+    );
+  }
+
+  @override
+  String feeFormatted() => '${(ethFee / BigInt.from(10).pow(18)).toString()} MATIC';
+}

cw_polygon/lib/polygon_transaction_model.dart

@@ -0,0 +1,49 @@
+import 'package:cw_ethereum/ethereum_transaction_model.dart';
+
+class PolygonTransactionModel extends EthereumTransactionModel {
+  PolygonTransactionModel({
+    required DateTime date,
+    required String hash,
+    required String from,
+    required String to,
+    required BigInt amount,
+    required int gasUsed,
+    required BigInt gasPrice,
+    required String contractAddress,
+    required int confirmations,
+    required int blockNumber,
+    required String? tokenSymbol,
+    required int? tokenDecimal,
+    required bool isError,
+  }) : super(
+          amount: amount,
+          date: date,
+          hash: hash,
+          from: from,
+          to: to,
+          gasPrice: gasPrice,
+          gasUsed: gasUsed,
+          confirmations: confirmations,
+          contractAddress: contractAddress,
+          blockNumber: blockNumber,
+          tokenDecimal: tokenDecimal,
+          tokenSymbol: tokenSymbol,
+          isError: isError,
+        );
+
+  factory PolygonTransactionModel.fromJson(Map<String, dynamic> json) => PolygonTransactionModel(
+        date: DateTime.fromMillisecondsSinceEpoch(int.parse(json["timeStamp"]) * 1000),
+        hash: json["hash"],
+        from: json["from"],
+        to: json["to"],
+        amount: BigInt.parse(json["value"]),
+        gasUsed: int.parse(json["gasUsed"]),
+        gasPrice: BigInt.parse(json["gasPrice"]),
+        contractAddress: json["contractAddress"],
+        confirmations: int.parse(json["confirmations"]),
+        blockNumber: int.parse(json["blockNumber"]),
+        tokenSymbol: json["tokenSymbol"] ?? "MATIC",
+        tokenDecimal: int.tryParse(json["tokenDecimal"] ?? ""),
+        isError: json["isError"] == "1",
+      );
+}

cw_polygon/lib/polygon_transaction_priority.dart

@@ -0,0 +1,51 @@
+import 'package:cw_ethereum/ethereum_transaction_priority.dart';
+
+class PolygonTransactionPriority extends EthereumTransactionPriority {
+  const PolygonTransactionPriority({required String title, required int raw, required int tip})
+      : super(title: title, raw: raw, tip: tip);
+
+  static const List<PolygonTransactionPriority> all = [fast, medium, slow];
+  static const PolygonTransactionPriority slow =
+      PolygonTransactionPriority(title: 'slow', raw: 0, tip: 1);
+  static const PolygonTransactionPriority medium =
+      PolygonTransactionPriority(title: 'Medium', raw: 1, tip: 2);
+  static const PolygonTransactionPriority fast =
+      PolygonTransactionPriority(title: 'Fast', raw: 2, tip: 4);
+
+  static PolygonTransactionPriority deserialize({required int raw}) {
+    switch (raw) {
+      case 0:
+        return slow;
+      case 1:
+        return medium;
+      case 2:
+        return fast;
+      default:
+        throw Exception('Unexpected token: $raw for PolygonTransactionPriority deserialize');
+    }
+  }
+
+  @override
+  String get units => 'gas';
+
+  @override
+  String toString() {
+    var label = '';
+
+    switch (this) {
+      case PolygonTransactionPriority.slow:
+        label = 'Slow';
+        break;
+      case PolygonTransactionPriority.medium:
+        label = 'Medium';
+        break;
+      case PolygonTransactionPriority.fast:
+        label = 'Fast';
+        break;
+      default:
+        break;
+    }
+
+    return label;
+  }
+}

cw_polygon/lib/polygon_wallet.dart

@@ -0,0 +1,540 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+import 'dart:math';
+
+import 'package:cw_core/crypto_currency.dart';
+import 'package:cw_core/cake_hive.dart';
+import 'package:cw_core/node.dart';
+import 'package:cw_core/pathForWallet.dart';
+import 'package:cw_core/pending_transaction.dart';
+import 'package:cw_core/sync_status.dart';
+import 'package:cw_core/transaction_direction.dart';
+import 'package:cw_core/transaction_priority.dart';
+import 'package:cw_core/wallet_addresses.dart';
+import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_info.dart';
+import 'package:cw_ethereum/erc20_balance.dart';
+import 'package:cw_ethereum/ethereum_formatter.dart';
+import 'package:cw_ethereum/ethereum_transaction_model.dart';
+import 'package:cw_ethereum/file.dart';
+import 'package:cw_core/erc20_token.dart';
+import 'package:cw_polygon/default_erc20_tokens.dart';
+import 'package:cw_polygon/polygon_client.dart';
+import 'package:cw_polygon/polygon_exceptions.dart';
+import 'package:cw_polygon/polygon_formatter.dart';
+import 'package:cw_polygon/polygon_transaction_credentials.dart';
+import 'package:cw_polygon/polygon_transaction_history.dart';
+import 'package:cw_polygon/polygon_transaction_info.dart';
+import 'package:cw_polygon/polygon_transaction_model.dart';
+import 'package:cw_polygon/polygon_transaction_priority.dart';
+import 'package:cw_polygon/polygon_wallet_addresses.dart';
+import 'package:hive/hive.dart';
+import 'package:hex/hex.dart';
+import 'package:mobx/mobx.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:web3dart/crypto.dart';
+import 'package:web3dart/web3dart.dart';
+import 'package:bip39/bip39.dart' as bip39;
+import 'package:bip32/bip32.dart' as bip32;
+
+part 'polygon_wallet.g.dart';
+
+class PolygonWallet = PolygonWalletBase with _$PolygonWallet;
+
+abstract class PolygonWalletBase extends WalletBase<ERC20Balance,
+    PolygonTransactionHistory, PolygonTransactionInfo> with Store {
+  PolygonWalletBase({
+    required WalletInfo walletInfo,
+    String? mnemonic,
+    String? privateKey,
+    required String password,
+    ERC20Balance? initialBalance,
+  })  : syncStatus = NotConnectedSyncStatus(),
+        _password = password,
+        _mnemonic = mnemonic,
+        _hexPrivateKey = privateKey,
+        _isTransactionUpdating = false,
+        _client = PolygonClient(),
+        walletAddresses = PolygonWalletAddresses(walletInfo),
+        balance = ObservableMap<CryptoCurrency, ERC20Balance>.of({
+          CryptoCurrency.maticpoly: initialBalance ?? ERC20Balance(BigInt.zero)
+        }),
+        super(walletInfo) {
+    this.walletInfo = walletInfo;
+    transactionHistory =
+        PolygonTransactionHistory(walletInfo: walletInfo, password: password);
+
+    if (!CakeHive.isAdapterRegistered(Erc20Token.typeId)) {
+      CakeHive.registerAdapter(Erc20TokenAdapter());
+    }
+
+    _sharedPrefs.complete(SharedPreferences.getInstance());
+  }
+
+  final String? _mnemonic;
+  final String? _hexPrivateKey;
+  final String _password;
+
+  late final Box<Erc20Token> polygonErc20TokensBox;
+
+  late final EthPrivateKey _polygonPrivateKey;
+
+  EthPrivateKey get polygonPrivateKey => _polygonPrivateKey;
+
+  late PolygonClient _client;
+
+  int? _gasPrice;
+  int? _estimatedGas;
+  bool _isTransactionUpdating;
+
+  // TODO: remove after integrating our own node and having eth_newPendingTransactionFilter
+  Timer? _transactionsUpdateTimer;
+
+  @override
+  WalletAddresses walletAddresses;
+
+  @override
+  @observable
+  SyncStatus syncStatus;
+
+  @override
+  @observable
+  late ObservableMap<CryptoCurrency, ERC20Balance> balance;
+
+  Completer<SharedPreferences> _sharedPrefs = Completer();
+
+  Future<void> init() async {
+    polygonErc20TokensBox =
+        await CakeHive.openBox<Erc20Token>(Erc20Token.polygonBoxName);
+    await walletAddresses.init();
+    await transactionHistory.init();
+    _polygonPrivateKey = await getPrivateKey(
+      mnemonic: _mnemonic,
+      privateKey: _hexPrivateKey,
+      password: _password,
+    );
+    walletAddresses.address = _polygonPrivateKey.address.toString();
+    await save();
+  }
+
+  @override
+  int calculateEstimatedFee(TransactionPriority priority, int? amount) {
+    try {
+      if (priority is PolygonTransactionPriority) {
+        final priorityFee =
+            EtherAmount.fromInt(EtherUnit.gwei, priority.tip).getInWei.toInt();
+        return (_gasPrice! + priorityFee) * (_estimatedGas ?? 0);
+      }
+
+      return 0;
+    } catch (e) {
+      return 0;
+    }
+  }
+
+  @override
+  Future<void> changePassword(String password) {
+    throw UnimplementedError("changePassword");
+  }
+
+  @override
+  void close() {
+    _client.stop();
+    _transactionsUpdateTimer?.cancel();
+  }
+
+  @action
+  @override
+  Future<void> connectToNode({required Node node}) async {
+    try {
+      syncStatus = ConnectingSyncStatus();
+
+      final isConnected = _client.connect(node);
+
+      if (!isConnected) {
+        throw Exception("Polygon Node connection failed");
+      }
+
+      _client.setListeners(_polygonPrivateKey.address, _onNewTransaction);
+
+      _setTransactionUpdateTimer();
+
+      syncStatus = ConnectedSyncStatus();
+    } catch (e) {
+      syncStatus = FailedSyncStatus();
+    }
+  }
+
+  @override
+  Future<PendingTransaction> createTransaction(Object credentials) async {
+    final _credentials = credentials as PolygonTransactionCredentials;
+    final outputs = _credentials.outputs;
+    final hasMultiDestination = outputs.length > 1;
+
+    final CryptoCurrency transactionCurrency = balance.keys
+        .firstWhere((element) => element.title == _credentials.currency.title);
+
+    final _erc20Balance = balance[transactionCurrency]!;
+    BigInt totalAmount = BigInt.zero;
+    int exponent =
+        transactionCurrency is Erc20Token ? transactionCurrency.decimal : 18;
+    num amountToPolygonMultiplier = pow(10, exponent);
+
+    // so far this can not be made with Polygon as Polygon does not support multiple recipients
+    if (hasMultiDestination) {
+      if (outputs.any(
+          (item) => item.sendAll || (item.formattedCryptoAmount ?? 0) <= 0)) {
+        throw PolygonTransactionCreationException(transactionCurrency);
+      }
+
+      final totalOriginalAmount = PolygonFormatter.parsePolygonAmountToDouble(
+          outputs.fold(
+              0, (acc, value) => acc + (value.formattedCryptoAmount ?? 0)));
+      totalAmount =
+          BigInt.from(totalOriginalAmount * amountToPolygonMultiplier);
+
+      if (_erc20Balance.balance < totalAmount) {
+        throw PolygonTransactionCreationException(transactionCurrency);
+      }
+    } else {
+      final output = outputs.first;
+      // since the fees are taken from Ethereum
+      // then no need to subtract the fees from the amount if send all
+      final BigInt allAmount;
+      if (transactionCurrency is Erc20Token) {
+        allAmount = _erc20Balance.balance;
+      } else {
+        allAmount = _erc20Balance.balance -
+            BigInt.from(calculateEstimatedFee(_credentials.priority!, null));
+      }
+      final totalOriginalAmount = EthereumFormatter.parseEthereumAmountToDouble(
+          output.formattedCryptoAmount ?? 0);
+      totalAmount = output.sendAll
+          ? allAmount
+          : BigInt.from(totalOriginalAmount * amountToPolygonMultiplier);
+
+      if (_erc20Balance.balance < totalAmount) {
+        throw PolygonTransactionCreationException(transactionCurrency);
+      }
+    }
+
+    final pendingPolygonTransaction = await _client.signTransaction(
+      privateKey: _polygonPrivateKey,
+      toAddress: _credentials.outputs.first.isParsedAddress
+          ? _credentials.outputs.first.extractedAddress!
+          : _credentials.outputs.first.address,
+      amount: totalAmount.toString(),
+      gas: _estimatedGas!,
+      priority: _credentials.priority!,
+      currency: transactionCurrency,
+      exponent: exponent,
+      contractAddress: transactionCurrency is Erc20Token
+          ? transactionCurrency.contractAddress
+          : null,
+    );
+
+    return pendingPolygonTransaction;
+  }
+
+  Future<void> _updateTransactions() async {
+    try {
+      if (_isTransactionUpdating) {
+        return;
+      }
+      bool isPolygonScanEnabled = (await _sharedPrefs.future).getBool("use_polygonscan") ?? true;
+      if (!isPolygonScanEnabled) {
+        return;
+      }
+
+      _isTransactionUpdating = true;
+      final transactions = await fetchTransactions();
+      transactionHistory.addMany(transactions);
+      await transactionHistory.save();
+      _isTransactionUpdating = false;
+    } catch (_) {
+      _isTransactionUpdating = false;
+    }
+  }
+
+  @override
+  Future<Map<String, PolygonTransactionInfo>> fetchTransactions() async {
+    final address = _polygonPrivateKey.address.hex;
+    final transactions = await _client.fetchTransactions(address);
+
+    final List<Future<List<PolygonTransactionModel>>> polygonErc20TokensTransactions =
+        [];
+
+    for (var token in balance.keys) {
+      if (token is Erc20Token) {
+        polygonErc20TokensTransactions.add(_client.fetchTransactions(
+          address,
+          contractAddress: token.contractAddress,
+        ) as Future<List<PolygonTransactionModel>>);
+      }
+    }
+
+    final tokensTransaction = await Future.wait(polygonErc20TokensTransactions);
+    transactions.addAll(tokensTransaction.expand((element) => element));
+
+    final Map<String, PolygonTransactionInfo> result = {};
+
+    for (var transactionModel in transactions) {
+      if (transactionModel.isError) {
+        continue;
+      }
+
+      result[transactionModel.hash] = PolygonTransactionInfo(
+        id: transactionModel.hash,
+        height: transactionModel.blockNumber,
+        ethAmount: transactionModel.amount,
+        direction: transactionModel.from == address
+            ? TransactionDirection.outgoing
+            : TransactionDirection.incoming,
+        isPending: false,
+        date: transactionModel.date,
+        confirmations: transactionModel.confirmations,
+        ethFee:
+            BigInt.from(transactionModel.gasUsed) * transactionModel.gasPrice,
+        exponent: transactionModel.tokenDecimal ?? 18,
+        tokenSymbol: transactionModel.tokenSymbol ?? "MATIC",
+        to: transactionModel.to,
+      );
+    }
+
+    return result;
+  }
+
+  @override
+  Object get keys => throw UnimplementedError("keys");
+
+  @override
+  Future<void> rescan({required int height}) {
+    throw UnimplementedError("rescan");
+  }
+
+  @override
+  Future<void> save() async {
+    await walletAddresses.updateAddressesInBox();
+    final path = await makePath();
+    await write(path: path, password: _password, data: toJSON());
+    await transactionHistory.save();
+  }
+
+  @override
+  String? get seed => _mnemonic;
+
+  @override
+  String get privateKey => HEX.encode(_polygonPrivateKey.privateKey);
+
+  @action
+  @override
+  Future<void> startSync() async {
+    try {
+      syncStatus = AttemptingSyncStatus();
+      await _updateBalance();
+      await _updateTransactions();
+      _gasPrice = await _client.getGasUnitPrice();
+      _estimatedGas = await _client.getEstimatedGas();
+
+      Timer.periodic(const Duration(minutes: 1),
+          (timer) async => _gasPrice = await _client.getGasUnitPrice());
+      Timer.periodic(const Duration(seconds: 10),
+          (timer) async => _estimatedGas = await _client.getEstimatedGas());
+
+      syncStatus = SyncedSyncStatus();
+    } catch (e) {
+      syncStatus = FailedSyncStatus();
+    }
+  }
+
+  Future<String> makePath() async =>
+      pathForWallet(name: walletInfo.name, type: walletInfo.type);
+
+  String toJSON() => json.encode({
+        'mnemonic': _mnemonic,
+        'private_key': privateKey,
+        'balance': balance[currency]!.toJSON(),
+      });
+
+  static Future<PolygonWallet> open({
+    required String name,
+    required String password,
+    required WalletInfo walletInfo,
+  }) async {
+    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 privateKey = data['private_key'] as String?;
+    final balance = ERC20Balance.fromJSON(data['balance'] as String) ??
+        ERC20Balance(BigInt.zero);
+
+    return PolygonWallet(
+      walletInfo: walletInfo,
+      password: password,
+      mnemonic: mnemonic,
+      privateKey: privateKey,
+      initialBalance: balance,
+    );
+  }
+
+  Future<void> _updateBalance() async {
+    balance[currency] = await _fetchMaticBalance();
+
+    await _fetchErc20Balances();
+    await save();
+  }
+
+  Future<ERC20Balance> _fetchMaticBalance() async {
+    final balance = await _client.getBalance(_polygonPrivateKey.address);
+    return ERC20Balance(balance.getInWei);
+  }
+
+  Future<void> _fetchErc20Balances() async {
+    for (var token in polygonErc20TokensBox.values) {
+      try {
+        if (token.enabled) {
+          balance[token] = await _client.fetchERC20Balances(
+            _polygonPrivateKey.address,
+            token.contractAddress,
+          );
+        } else {
+          balance.remove(token);
+        }
+      } catch (_) {}
+    }
+  }
+
+  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);
+
+    const _hdPathPolygon = "m/44'/60'/0'/0";
+    const index = 0;
+    final addressAtIndex = root.derivePath("$_hdPathPolygon/$index");
+
+    return EthPrivateKey.fromHex(
+        HEX.encode(addressAtIndex.privateKey as List<int>));
+  }
+
+  Future<void>? updateBalance() async => await _updateBalance();
+
+  List<Erc20Token> get erc20Currencies => polygonErc20TokensBox.values.toList();
+
+  Future<void> addErc20Token(Erc20Token token) async {
+    String? iconPath;
+    try {
+      iconPath = CryptoCurrency.all
+          .firstWhere((element) =>
+              element.title.toUpperCase() == token.symbol.toUpperCase())
+          .iconPath;
+    } catch (_) {}
+
+    final _token = Erc20Token(
+      name: token.name,
+      symbol: token.symbol,
+      contractAddress: token.contractAddress,
+      decimal: token.decimal,
+      enabled: token.enabled,
+      iconPath: iconPath,
+    );
+
+    await polygonErc20TokensBox.put(_token.contractAddress, _token);
+
+    if (_token.enabled) {
+      balance[_token] = await _client.fetchERC20Balances(
+        _polygonPrivateKey.address,
+        _token.contractAddress,
+      );
+    } else {
+      balance.remove(_token);
+    }
+  }
+
+  Future<void> deleteErc20Token(Erc20Token token) async {
+    await token.delete();
+
+    balance.remove(token);
+    _updateBalance();
+  }
+
+  Future<Erc20Token?> getErc20Token(String contractAddress) async =>
+      await _client.getErc20Token(contractAddress);
+
+  void _onNewTransaction() {
+    _updateBalance();
+    _updateTransactions();
+  }
+
+  void addInitialTokens() {
+    final initialErc20Tokens =
+        DefaultPolygonErc20Tokens().initialPolygonErc20Tokens;
+
+    for (var token in initialErc20Tokens) {
+      polygonErc20TokensBox.put(token.contractAddress, token);
+    }
+  }
+
+  @override
+  Future<void> renameWalletFiles(String newWalletName) async {
+    final currentWalletPath =
+        await pathForWallet(name: walletInfo.name, type: type);
+    final currentWalletFile = File(currentWalletPath);
+
+    final currentDirPath =
+        await pathForWalletDir(name: walletInfo.name, type: type);
+    final currentTransactionsFile =
+        File('$currentDirPath/$transactionsHistoryFileName');
+
+    // Copies current wallet files into new wallet name's dir and files
+    if (currentWalletFile.existsSync()) {
+      final newWalletPath =
+          await pathForWallet(name: newWalletName, type: type);
+      await currentWalletFile.copy(newWalletPath);
+    }
+    if (currentTransactionsFile.existsSync()) {
+      final newDirPath =
+          await pathForWalletDir(name: newWalletName, type: type);
+      await currentTransactionsFile
+          .copy('$newDirPath/$transactionsHistoryFileName');
+    }
+
+    // Delete old name's dir and files
+    await Directory(currentDirPath).delete(recursive: true);
+  }
+
+  void _setTransactionUpdateTimer() {
+    if (_transactionsUpdateTimer?.isActive ?? false) {
+      _transactionsUpdateTimer!.cancel();
+    }
+
+    _transactionsUpdateTimer = Timer.periodic(Duration(seconds: 10), (_) {
+      _updateTransactions();
+      _updateBalance();
+    });
+  }
+
+  void updatePolygonScanUsageState(bool isEnabled) {
+    if (isEnabled) {
+      _updateTransactions();
+      _setTransactionUpdateTimer();
+    } else {
+      _transactionsUpdateTimer?.cancel();
+    }
+  }
+
+  @override
+  String signMessage(String message, {String? address = null}) => bytesToHex(
+      _polygonPrivateKey.signPersonalMessageToUint8List(ascii.encode(message)));
+
+  Web3Client? getWeb3Client() => _client.getWeb3Client();
+}

cw_polygon/lib/polygon_wallet_addresses.dart

@@ -0,0 +1,5 @@
+import 'package:cw_ethereum/ethereum_wallet_addresses.dart';
+
+class PolygonWalletAddresses extends EthereumWalletAddresses {
+  PolygonWalletAddresses(super.walletInfo);
+}

cw_polygon/lib/polygon_wallet_creation_credentials.dart

@@ -0,0 +1,28 @@
+import 'package:cw_core/wallet_credentials.dart';
+import 'package:cw_core/wallet_info.dart';
+class PolygonNewWalletCredentials extends WalletCredentials {
+  PolygonNewWalletCredentials({required String name, WalletInfo? walletInfo})
+      : super(name: name, walletInfo: walletInfo);
+}
+
+class PolygonRestoreWalletFromSeedCredentials extends WalletCredentials {
+  PolygonRestoreWalletFromSeedCredentials(
+      {required String name,
+      required String password,
+      required this.mnemonic,
+      WalletInfo? walletInfo})
+      : super(name: name, password: password, walletInfo: walletInfo);
+
+  final String mnemonic;
+}
+
+class PolygonRestoreWalletFromPrivateKey extends WalletCredentials {
+  PolygonRestoreWalletFromPrivateKey(
+      {required String name,
+      required String password,
+      required this.privateKey,
+      WalletInfo? walletInfo})
+      : super(name: name, password: password, walletInfo: walletInfo);
+
+  final String privateKey;
+}

cw_polygon/lib/polygon_wallet_service.dart

@@ -0,0 +1,123 @@
+import 'dart:io';
+
+import 'package:cw_core/pathForWallet.dart';
+import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_info.dart';
+import 'package:cw_core/wallet_service.dart';
+import 'package:cw_core/wallet_type.dart';
+import 'package:cw_ethereum/ethereum_mnemonics.dart';
+import 'package:cw_polygon/polygon_wallet.dart';
+import 'package:bip39/bip39.dart' as bip39;
+import 'package:hive/hive.dart';
+import 'polygon_wallet_creation_credentials.dart';
+import 'package:collection/collection.dart';
+
+class PolygonWalletService extends WalletService<PolygonNewWalletCredentials,
+    PolygonRestoreWalletFromSeedCredentials, PolygonRestoreWalletFromPrivateKey> {
+  PolygonWalletService(this.walletInfoSource);
+
+  final Box<WalletInfo> walletInfoSource;
+
+  @override
+  Future<PolygonWallet> create(PolygonNewWalletCredentials credentials) async {
+    final strength = (credentials.seedPhraseLength == 12)
+        ? 128
+        : (credentials.seedPhraseLength == 24)
+            ? 256
+            : 128;
+
+    final mnemonic = bip39.generateMnemonic(strength: strength);
+    final wallet = PolygonWallet(
+      walletInfo: credentials.walletInfo!,
+      mnemonic: mnemonic,
+      password: credentials.password!,
+    );
+
+    await wallet.init();
+    wallet.addInitialTokens();
+    await wallet.save();
+
+    return wallet;
+  }
+
+  @override
+  WalletType getType() => WalletType.polygon;
+
+  @override
+  Future<bool> isWalletExit(String name) async =>
+      File(await pathForWallet(name: name, type: getType())).existsSync();
+
+  @override
+  Future<PolygonWallet> openWallet(String name, String password) async {
+    final walletInfo =
+        walletInfoSource.values.firstWhere((info) => info.id == WalletBase.idFor(name, getType()));
+    final wallet = await PolygonWalletBase.open(
+      name: name,
+      password: password,
+      walletInfo: walletInfo,
+    );
+
+    await wallet.init();
+    await wallet.save();
+
+    return wallet;
+  }
+
+  @override
+  Future<void> remove(String wallet) async {
+    File(await pathForWalletDir(name: wallet, type: getType())).delete(recursive: true);
+    final walletInfo = walletInfoSource.values
+        .firstWhereOrNull((info) => info.id == WalletBase.idFor(wallet, getType()))!;
+    await walletInfoSource.delete(walletInfo.key);
+  }
+
+  @override
+  Future<PolygonWallet> restoreFromKeys(PolygonRestoreWalletFromPrivateKey credentials) async {
+    final wallet = PolygonWallet(
+      password: credentials.password!,
+      privateKey: credentials.privateKey,
+      walletInfo: credentials.walletInfo!,
+    );
+
+    await wallet.init();
+    wallet.addInitialTokens();
+    await wallet.save();
+
+    return wallet;
+  }
+
+  @override
+  Future<PolygonWallet> restoreFromSeed(PolygonRestoreWalletFromSeedCredentials credentials) async {
+    if (!bip39.validateMnemonic(credentials.mnemonic)) {
+      throw EthereumMnemonicIsIncorrectException();
+    }
+
+    final wallet = PolygonWallet(
+      password: credentials.password!,
+      mnemonic: credentials.mnemonic,
+      walletInfo: credentials.walletInfo!,
+    );
+
+    await wallet.init();
+    wallet.addInitialTokens();
+    await wallet.save();
+
+    return wallet;
+  }
+
+  @override
+  Future<void> rename(String currentName, String password, String newName) async {
+    final currentWalletInfo = walletInfoSource.values
+        .firstWhere((info) => info.id == WalletBase.idFor(currentName, getType()));
+    final currentWallet = await PolygonWalletBase.open(
+        password: password, name: currentName, walletInfo: currentWalletInfo);
+
+    await currentWallet.renameWalletFiles(newName);
+
+    final newWalletInfo = currentWalletInfo;
+    newWalletInfo.id = WalletBase.idFor(newName, getType());
+    newWalletInfo.name = newName;
+
+    await walletInfoSource.put(currentWalletInfo.key, newWalletInfo);
+  }
+}

cw_polygon/pubspec.yaml

@@ -0,0 +1,73 @@
+name: cw_polygon
+description: A new Flutter package project.
+version: 0.0.1
+publish_to: none
+author: Cake Wallet
+homepage: https://cakewallet.com
+
+environment:
+  sdk: '>=3.0.6 <4.0.0'
+  flutter: ">=1.17.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  cw_core:
+    path: ../cw_core
+  cw_ethereum:
+    path: ../cw_ethereum
+  mobx: ^2.0.7+4
+  intl: ^0.18.0
+  bip39: ^1.0.6
+  hive: ^2.2.3
+  collection: ^1.17.1
+  web3dart: ^2.7.1
+  bip32: ^2.0.0
+  hex: ^0.2.0
+  shared_preferences: ^2.0.15
+
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^2.0.0
+  build_runner: ^2.1.11
+  mobx_codegen: ^2.0.7
+  hive_generator: ^1.1.3
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter packages.
+flutter:
+
+  # To add assets to your package, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+  #
+  # For details regarding assets in packages, see
+  # https://flutter.dev/assets-and-images/#from-packages
+  #
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware
+
+  # To add custom fonts to your package, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts in packages, see
+  # https://flutter.dev/custom-fonts/#from-packages

cw_polygon/test/cw_polygon_test.dart

@@ -0,0 +1,12 @@
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:cw_polygon/cw_polygon.dart';
+
+void main() {
+  test('adds one to input values', () {
+    final calculator = Calculator();
+    expect(calculator.addOne(2), 3);
+    expect(calculator.addOne(-7), -6);
+    expect(calculator.addOne(0), 1);
+  });
+}

ios/Podfile.lock

@@ -122,8 +122,6 @@ PODS:
     - Flutter
   - MTBBarcodeScanner (5.0.11)
   - OrderedSet (5.0.0)
-  - package_info (0.0.1):
-    - Flutter
   - package_info_plus (0.4.5):
     - Flutter
   - path_provider_foundation (0.0.1):
@@ -177,7 +175,6 @@ DEPENDENCIES:
   - fluttertoast (from `.symlinks/plugins/fluttertoast/ios`)
   - 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`)
   - package_info_plus (from `.symlinks/plugins/package_info_plus/ios`)
   - path_provider_foundation (from `.symlinks/plugins/path_provider_foundation/darwin`)
   - permission_handler_apple (from `.symlinks/plugins/permission_handler_apple/ios`)
@@ -239,8 +236,6 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/in_app_review/ios"
   local_auth_ios:
     :path: ".symlinks/plugins/local_auth_ios/ios"
-  package_info:
-    :path: ".symlinks/plugins/package_info/ios"
   package_info_plus:
     :path: ".symlinks/plugins/package_info_plus/ios"
   path_provider_foundation:
@@ -287,7 +282,6 @@ SPEC CHECKSUMS:
   local_auth_ios: c6cf091ded637a88f24f86a8875d8b0f526e2605
   MTBBarcodeScanner: f453b33c4b7dfe545d8c6484ed744d55671788cb
   OrderedSet: aaeb196f7fef5a9edf55d89760da9176ad40b93c
-  package_info: 873975fc26034f0b863a300ad47e7f1ac6c7ec62
   package_info_plus: 115f4ad11e0698c8c1c5d8a689390df880f47e85
   path_provider_foundation: 29f094ae23ebbca9d3d0cec13889cd9060c0e943
   permission_handler_apple: e76247795d700c14ea09e3a2d8855d41ee80a2e6

ios/Runner/InfoBase.plist

@@ -160,6 +160,26 @@
                 <string>bitcoincash-wallet</string>
             </array>
         </dict>
+        <dict>
+            <key>CFBundleTypeRole</key>
+            <string>Editor</string>
+            <key>CFBundleURLName</key>
+            <string>polygon</string>
+            <key>CFBundleURLSchemes</key>
+            <array>
+                <string>polygon</string>
+            </array>
+        </dict>
+        <dict>
+            <key>CFBundleTypeRole</key>
+            <string>Viewer</string>
+            <key>CFBundleURLName</key>
+            <string>polygon-wallet</string>
+            <key>CFBundleURLSchemes</key>
+            <array>
+                <string>polygon-wallet</string>
+            </array>
+        </dict>
     </array>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>

lib/buy/dfx/dfx_buy_provider.dart

@@ -0,0 +1,179 @@
+import 'dart:convert';
+
+import 'package:cake_wallet/generated/i18n.dart';
+import 'package:cake_wallet/routes.dart';
+import 'package:cake_wallet/src/widgets/alert_with_one_action.dart';
+import 'package:cake_wallet/utils/device_info.dart';
+import 'package:cake_wallet/utils/show_pop_up.dart';
+import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_type.dart';
+import 'package:flutter/material.dart';
+import 'package:http/http.dart' as http;
+import 'package:url_launcher/url_launcher.dart';
+
+class DFXBuyProvider {
+  DFXBuyProvider({required WalletBase wallet}) : this._wallet = wallet;
+
+  final WalletBase _wallet;
+
+  static const _baseUrl = 'api.dfx.swiss';
+  static const _authPath = '/v1/auth/signMessage';
+  static const _signUpPath = '/v1/auth/signUp';
+  static const _signInPath = '/v1/auth/signIn';
+  static const walletName = 'CakeWallet';
+
+  String get assetOut {
+    switch (_wallet.type) {
+      case WalletType.bitcoin:
+        return 'BTC';
+      case WalletType.bitcoinCash:
+        return 'BCH';
+      case WalletType.litecoin:
+        return 'LTC';
+      case WalletType.monero:
+        return 'XMR';
+      case WalletType.ethereum:
+        return 'ETH';
+      default:
+        throw Exception("WalletType is not available for DFX ${_wallet.type}");
+    }
+  }
+
+  String get blockchain {
+    switch (_wallet.type) {
+      case WalletType.bitcoin:
+      case WalletType.bitcoinCash:
+      case WalletType.litecoin:
+        return 'Bitcoin';
+      case WalletType.monero:
+        return 'Monero';
+      case WalletType.ethereum:
+        return 'Ethereum';
+      default:
+        throw Exception("WalletType is not available for DFX ${_wallet.type}");
+    }
+  }
+
+  Future<String> getSignMessage() async {
+    final walletAddress = _wallet.walletAddresses.address;
+    final uri = Uri.https(_baseUrl, _authPath, {'address': walletAddress});
+
+    var response = await http.get(uri, headers: {'accept': 'application/json'});
+
+    if (response.statusCode == 200) {
+      final responseBody = jsonDecode(response.body);
+      return responseBody['message'] as String;
+    } else {
+      throw Exception(
+          'Failed to get sign message. Status: ${response.statusCode} ${response.body}');
+    }
+  }
+
+  Future<String> signUp() async {
+    final signMessage = getSignature(await getSignMessage());
+    final walletAddress = _wallet.walletAddresses.address;
+
+    final requestBody = jsonEncode({
+      'wallet': walletName,
+      'address': walletAddress,
+      'signature': signMessage,
+    });
+
+    final uri = Uri.https(_baseUrl, _signUpPath);
+    var response = await http.post(uri,
+        headers: {'Content-Type': 'application/json'}, body: requestBody);
+
+    if (response.statusCode == 201) {
+      final responseBody = jsonDecode(response.body);
+      return responseBody['accessToken'] as String;
+    } else {
+      throw Exception(
+          'Failed to sign up. Status: ${response.statusCode} ${response.body}');
+    }
+  }
+
+  Future<String> signIn() async {
+    final signMessage = getSignature(await getSignMessage());
+    final walletAddress = _wallet.walletAddresses.address;
+
+    final requestBody = jsonEncode({
+      'address': walletAddress,
+      'signature': signMessage,
+    });
+
+    final uri = Uri.https(_baseUrl, _signInPath);
+    var response = await http.post(uri,
+        headers: {'Content-Type': 'application/json'}, body: requestBody);
+
+    if (response.statusCode == 201) {
+      final responseBody = jsonDecode(response.body);
+      return responseBody['accessToken'] as String;
+    } else {
+      throw Exception(
+          'Failed to sign in. Status: ${response.statusCode} ${response.body}');
+    }
+  }
+
+  String getSignature(String message) {
+    switch (_wallet.type) {
+      case WalletType.ethereum:
+        return _wallet.signMessage(message);
+      case WalletType.monero:
+      case WalletType.litecoin:
+      case WalletType.bitcoin:
+      case WalletType.bitcoinCash:
+        return _wallet.signMessage(message,
+            address: _wallet.walletAddresses.address);
+      default:
+        throw Exception("WalletType is not available for DFX ${_wallet.type}");
+    }
+  }
+
+  Future<void> launchProvider(BuildContext context) async {
+    try {
+      final assetOut = this.assetOut;
+      final blockchain = this.blockchain;
+
+      String accessToken;
+
+      try {
+        accessToken = await signUp();
+      } on Exception catch (e) {
+        if (e.toString().contains('409')) {
+          accessToken = await signIn();
+        } else {
+          rethrow;
+        }
+      }
+
+      final uri = Uri.https('services.dfx.swiss', '/buy', {
+        'session': accessToken,
+        'lang': 'en',
+        'asset-out': assetOut,
+        'blockchain': blockchain,
+        'asset-in': 'EUR',
+      });
+
+      if (await canLaunchUrl(uri)) {
+        if (DeviceInfo.instance.isMobile) {
+          Navigator.of(context).pushNamed(Routes.webViewPage,
+              arguments: [S.of(context).buy, uri]);
+        } else {
+          await launchUrl(uri, mode: LaunchMode.externalApplication);
+        }
+      } else {
+        throw Exception('Could not launch URL');
+      }
+    } catch (e) {
+      await showPopUp<void>(
+          context: context,
+          builder: (BuildContext context) {
+            return AlertWithOneAction(
+                alertTitle: "DFX Connect",
+                alertContent: S.of(context).buy_provider_unavailable + ': $e',
+                buttonText: S.of(context).ok,
+                buttonAction: () => Navigator.of(context).pop());
+          });
+    }
+  }
+}

lib/core/address_validator.dart

@@ -271,6 +271,8 @@ class AddressValidator extends TextValidator {
             '|([^0-9a-zA-Z]|^)ltc[a-zA-Z0-9]{26,45}([^0-9a-zA-Z]|\$)';
       case CryptoCurrency.eth:
         return '0x[0-9a-zA-Z]{42}';
+      case CryptoCurrency.maticpoly:
+        return '0x[0-9a-zA-Z]{42}';
       case CryptoCurrency.nano:
         return 'nano_[0-9a-zA-Z]{60}';
       case CryptoCurrency.banano:

lib/core/backup_service.dart

@@ -436,6 +436,7 @@ class BackupService {
     final backupPasswordKey = generateStoreKeyFor(key: SecretStoreKey.backupPassword);
     final backupPassword = keychainJSON[backupPasswordKey] as String;
 
+    await _flutterSecureStorage.delete(key: backupPasswordKey);
     await _flutterSecureStorage.write(key: backupPasswordKey, value: backupPassword);
 
     keychainWalletsInfo.forEach((dynamic rawInfo) async {
@@ -443,6 +444,7 @@ class BackupService {
       await importWalletKeychainInfo(info);
     });
 
+    await _flutterSecureStorage.delete(key: pinCodeKey);
     await _flutterSecureStorage.write(key: pinCodeKey, value: encodedPinCode(pin: decodedPin));
 
     keychainDumpFile.deleteSync();
@@ -462,6 +464,7 @@ class BackupService {
     final backupPasswordKey = generateStoreKeyFor(key: SecretStoreKey.backupPassword);
     final backupPassword = keychainJSON[backupPasswordKey] as String;
 
+    await _flutterSecureStorage.delete(key: backupPasswordKey);
     await _flutterSecureStorage.write(key: backupPasswordKey, value: backupPassword);
 
     keychainWalletsInfo.forEach((dynamic rawInfo) async {
@@ -469,6 +472,7 @@ class BackupService {
       await importWalletKeychainInfo(info);
     });
 
+    await _flutterSecureStorage.delete(key: pinCodeKey);
     await _flutterSecureStorage.write(key: pinCodeKey, value: encodedPinCode(pin: decodedPin));
 
     keychainDumpFile.deleteSync();

lib/core/fiat_conversion_service.dart

@@ -16,7 +16,7 @@ Future<double> _fetchPrice(Map<String, dynamic> args) async {
 
   final Map<String, String> queryParams = {
     'interval_count': '1',
-    'base': crypto,
+    'base': crypto.split(".").first,
     'quote': fiat,
     'key': secrets.fiatApiKey,
   };

lib/core/key_service.dart

@@ -19,6 +19,7 @@ class KeyService {
         key: SecretStoreKey.moneroWalletPassword, walletName: walletName);
     final encodedPassword = encodeWalletPassword(password: password);
 
+    await _secureStorage.delete(key: key);
     await _secureStorage.write(key: key, value: encodedPassword);
   }
 

lib/core/seed_validator.dart

@@ -3,6 +3,7 @@ import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/haven/haven.dart';
 import 'package:cake_wallet/core/validator.dart';
 import 'package:cake_wallet/entities/mnemonic_item.dart';
+import 'package:cake_wallet/polygon/polygon.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:cake_wallet/monero/monero.dart';
 import 'package:cake_wallet/nano/nano.dart';
@@ -34,6 +35,8 @@ class SeedValidator extends Validator<MnemonicItem> {
       case WalletType.nano:
       case WalletType.banano:
         return nano!.getNanoWordList(language);
+      case WalletType.polygon:
+        return polygon!.getPolygonWordList(language);
       default:
         return [];
     }

lib/core/wallet_connect/evm_chain_service.dart

@@ -6,6 +6,7 @@ import 'package:cake_wallet/core/wallet_connect/eth_transaction_model.dart';
 import 'package:cake_wallet/core/wallet_connect/evm_chain_id.dart';
 import 'package:cake_wallet/core/wallet_connect/wc_bottom_sheet_service.dart';
 import 'package:cake_wallet/generated/i18n.dart';
+import 'package:cake_wallet/reactions/wallet_connect.dart';
 import 'package:cake_wallet/src/screens/wallet_connect/widgets/message_display_widget.dart';
 import 'package:cake_wallet/store/app_store.dart';
 import 'package:cake_wallet/core/wallet_connect/models/chain_key_model.dart';
@@ -14,7 +15,6 @@ import 'package:cake_wallet/src/screens/wallet_connect/widgets/connection_widget
 import 'package:cake_wallet/src/screens/wallet_connect/widgets/modals/web3_request_modal.dart';
 import 'package:cake_wallet/src/screens/wallet_connect/utils/string_parsing.dart';
 import 'package:convert/convert.dart';
-import 'package:cw_core/wallet_type.dart';
 import 'package:eth_sig_util/eth_sig_util.dart';
 import 'package:eth_sig_util/util/utils.dart';
 import 'package:http/http.dart' as http;
@@ -46,13 +46,12 @@ class EvmChainServiceImpl implements ChainService {
     required this.wcKeyService,
     required this.bottomSheetService,
     required this.wallet,
-    Web3Client? ethClient,
+    Web3Client? web3Client,
-  }) : ethClient = ethClient ??
+  }) : ethClient = web3Client ??
             Web3Client(
-              appStore.settingsStore.getCurrentNode(WalletType.ethereum).uri.toString(),
+              appStore.settingsStore.getCurrentNode(appStore.wallet!.type).uri.toString(),
               http.Client(),
             ) {
- 
     for (final String event in getEvents()) {
       wallet.registerEventEmitter(chainId: getChainId(), event: event);
     }
@@ -138,7 +137,8 @@ class EvmChainServiceImpl implements ChainService {
 
     try {
       // Load the private key
-      final List<ChainKeyModel> keys = wcKeyService.getKeysForChain(getChainId());
+      final List<ChainKeyModel> keys = wcKeyService
+          .getKeysForChain(getChainNameSpaceAndIdBasedOnWalletType(appStore.wallet!.type));
 
       final Credentials credentials = EthPrivateKey.fromHex(keys[0].privateKey);
 
@@ -176,13 +176,15 @@ class EvmChainServiceImpl implements ChainService {
 
     try {
       // Load the private key
-      final List<ChainKeyModel> keys = wcKeyService.getKeysForChain(getChainId());
+      final List<ChainKeyModel> keys = wcKeyService
+          .getKeysForChain(getChainNameSpaceAndIdBasedOnWalletType(appStore.wallet!.type));
 
       final EthPrivateKey credentials = EthPrivateKey.fromHex(keys[0].privateKey);
 
       final String signature = hex.encode(
         credentials.signPersonalMessageToUint8List(
           Uint8List.fromList(utf8.encode(message)),
+          chainId: getChainIdBasedOnWalletType(appStore.wallet!.type),
         ),
       );
       log(signature);
@@ -212,7 +214,8 @@ class EvmChainServiceImpl implements ChainService {
     }
 
     // Load the private key
-    final List<ChainKeyModel> keys = wcKeyService.getKeysForChain(getChainId());
+    final List<ChainKeyModel> keys = wcKeyService
+        .getKeysForChain(getChainNameSpaceAndIdBasedOnWalletType(appStore.wallet!.type));
 
     final Credentials credentials = EthPrivateKey.fromHex(keys[0].privateKey);
 
@@ -232,7 +235,11 @@ class EvmChainServiceImpl implements ChainService {
     );
 
     try {
-      final result = await ethClient.sendTransaction(credentials, transaction);
+      final result = await ethClient.sendTransaction(
+        credentials,
+        transaction,
+        chainId: getChainIdBasedOnWalletType(appStore.wallet!.type),
+      );
 
       log('Result: $result');
 
@@ -267,7 +274,8 @@ class EvmChainServiceImpl implements ChainService {
       return authError;
     }
 
-    final List<ChainKeyModel> keys = wcKeyService.getKeysForChain(getChainId());
+    final List<ChainKeyModel> keys = wcKeyService
+        .getKeysForChain(getChainNameSpaceAndIdBasedOnWalletType(appStore.wallet!.type));
 
     return EthSigUtil.signTypedData(
       privateKey: keys[0].privateKey,

lib/core/wallet_connect/wallet_connect_key_service.dart

@@ -1,9 +1,11 @@
 import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/core/wallet_connect/models/chain_key_model.dart';
+import 'package:cake_wallet/polygon/polygon.dart';
 import 'package:cw_core/balance.dart';
 import 'package:cw_core/transaction_history.dart';
 import 'package:cw_core/transaction_info.dart';
 import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_type.dart';
 
 abstract class WalletConnectKeyService {
   /// Returns a list of all the keys.
@@ -32,16 +34,36 @@ class KeyServiceImpl implements WalletConnectKeyService {
               'eip155:42161',
               'eip155:80001',
             ],
-            privateKey: ethereum!.getPrivateKey(wallet),
+            privateKey: _getPrivateKeyForWallet(wallet),
-            publicKey: ethereum!.getPublicKey(wallet),
+            publicKey: _getPublicKeyForWallet(wallet),
           ),
-          
         ];
 
   late final WalletBase<Balance, TransactionHistoryBase<TransactionInfo>, TransactionInfo> wallet;
 
   late final List<ChainKeyModel> _keys;
 
+  static String _getPrivateKeyForWallet(WalletBase wallet) {
+    switch (wallet.type) {
+      case WalletType.ethereum:
+        return ethereum!.getPrivateKey(wallet);
+      case WalletType.polygon:
+        return polygon!.getPrivateKey(wallet);
+      default:
+        return '';
+    }
+  }
+
+  static String _getPublicKeyForWallet(WalletBase wallet) {
+    switch (wallet.type) {
+      case WalletType.ethereum:
+        return ethereum!.getPublicKey(wallet);
+      case WalletType.polygon:
+        return polygon!.getPublicKey(wallet);
+      default:
+        return '';
+    }
+  }
   @override
   List<String> getChains() {
     final List<String> chainIds = [];

lib/core/wallet_connect/web3wallet_service.dart

@@ -9,6 +9,7 @@ import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/core/wallet_connect/models/auth_request_model.dart';
 import 'package:cake_wallet/core/wallet_connect/models/chain_key_model.dart';
 import 'package:cake_wallet/core/wallet_connect/models/session_request_model.dart';
+import 'package:cake_wallet/reactions/wallet_connect.dart';
 import 'package:cake_wallet/src/screens/wallet_connect/widgets/connection_request_widget.dart';
 import 'package:cake_wallet/src/screens/wallet_connect/widgets/message_display_widget.dart';
 import 'package:cake_wallet/src/screens/wallet_connect/widgets/modals/web3_request_modal.dart';
@@ -164,8 +165,10 @@ abstract class Web3WalletServiceBase with Store {
 
   void _onSessionProposal(SessionProposalEvent? args) async {
     if (args != null) {
+      final chaindIdNamespace = getChainNameSpaceAndIdBasedOnWalletType(appStore.wallet!.type);
       final Widget modalWidget = Web3RequestModal(
         child: ConnectionRequestWidget(
+          chaindIdNamespace: chaindIdNamespace,
           wallet: _web3Wallet,
           sessionProposal: SessionRequestModel(request: args.params),
         ),
@@ -232,12 +235,13 @@ abstract class Web3WalletServiceBase with Store {
   @action
   Future<void> _onAuthRequest(AuthRequest? args) async {
     if (args != null) {
-      List<ChainKeyModel> chainKeys = walletKeyService.getKeysForChain('eip155:1');
+      final chaindIdNamespace = getChainNameSpaceAndIdBasedOnWalletType(appStore.wallet!.type);
+      List<ChainKeyModel> chainKeys = walletKeyService.getKeysForChain(chaindIdNamespace);
       // Create the message to be signed
-      final String iss = 'did:pkh:eip155:1:${chainKeys.first.publicKey}';
+      final String iss = 'did:pkh:$chaindIdNamespace:${chainKeys.first.publicKey}';
-
       final Widget modalWidget = Web3RequestModal(
         child: ConnectionRequestWidget(
+          chaindIdNamespace: chaindIdNamespace,
           wallet: _web3Wallet,
           authRequest: AuthRequestModel(iss: iss, request: args),
         ),

lib/di.dart

@@ -18,6 +18,8 @@ import 'package:cake_wallet/nano/nano.dart';
 import 'package:cake_wallet/ionia/ionia_anypay.dart';
 import 'package:cake_wallet/ionia/ionia_gift_card.dart';
 import 'package:cake_wallet/ionia/ionia_tip.dart';
+import 'package:cake_wallet/polygon/polygon.dart';
+import 'package:cake_wallet/reactions/wallet_connect.dart';
 import 'package:cake_wallet/routes.dart';
 import 'package:cake_wallet/src/screens/anonpay_details/anonpay_details_page.dart';
 import 'package:cake_wallet/src/screens/buy/buy_options_page.dart';
@@ -88,6 +90,7 @@ import 'package:cake_wallet/view_model/ionia/ionia_purchase_merch_view_model.dar
 import 'package:cake_wallet/view_model/nano_account_list/nano_account_edit_or_create_view_model.dart';
 import 'package:cake_wallet/view_model/nano_account_list/nano_account_list_view_model.dart';
 import 'package:cake_wallet/view_model/node_list/pow_node_list_view_model.dart';
+import 'package:cake_wallet/view_model/seed_type_view_model.dart';
 import 'package:cake_wallet/view_model/set_up_2fa_viewmodel.dart';
 import 'package:cake_wallet/view_model/restore/restore_from_qr_vm.dart';
 import 'package:cake_wallet/view_model/settings/display_settings_view_model.dart';
@@ -225,6 +228,7 @@ import 'package:cake_wallet/core/wallet_loading_service.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cake_wallet/entities/qr_view_data.dart';
 
+import 'buy/dfx/dfx_buy_provider.dart';
 import 'core/totp_request_details.dart';
 import 'src/screens/settings/desktop_settings/desktop_settings_page.dart';
 
@@ -720,6 +724,8 @@ Future<void> setup({
 
   getIt.registerFactory(() => WalletSeedViewModel(getIt.get<AppStore>().wallet!));
 
+  getIt.registerFactory<SeedTypeViewModel>(() => SeedTypeViewModel(getIt.get<AppStore>()));
+
   getIt.registerFactoryParam<WalletSeedPage, bool, void>((bool isWalletCreated, _) =>
       WalletSeedPage(getIt.get<WalletSeedViewModel>(), isNewWalletCreated: isWalletCreated));
 
@@ -754,7 +760,7 @@ Future<void> setup({
     final wallet = getIt.get<AppStore>().wallet;
     return ConnectionSyncPage(
       getIt.get<DashboardViewModel>(),
-      wallet?.type == WalletType.ethereum ? getIt.get<Web3WalletService>() : null,
+      isEVMCompatibleChain(wallet!.type) ? getIt.get<Web3WalletService>() : null,
     );
   });
 
@@ -797,6 +803,9 @@ Future<void> setup({
   getIt.registerFactory<RobinhoodBuyProvider>(
       () => RobinhoodBuyProvider(wallet: getIt.get<AppStore>().wallet!));
 
+  getIt.registerFactory<DFXBuyProvider>(
+          () => DFXBuyProvider(wallet: getIt.get<AppStore>().wallet!));
+
   getIt.registerFactory<OnRamperBuyProvider>(() => OnRamperBuyProvider(
         settingsStore: getIt.get<AppStore>().settingsStore,
         wallet: getIt.get<AppStore>().wallet!,
@@ -848,9 +857,11 @@ Future<void> setup({
         return ethereum!.createEthereumWalletService(_walletInfoSource);
       case WalletType.bitcoinCash:
         return bitcoinCash!
-            .createBitcoinCashWalletService(_walletInfoSource, _unspentCoinsInfoSource!);
+            .createBitcoinCashWalletService(_walletInfoSource, _unspentCoinsInfoSource);
       case WalletType.nano:
         return nano!.createNanoWalletService(_walletInfoSource);
+      case WalletType.polygon:
+        return polygon!.createPolygonWalletService(_walletInfoSource);
       default:
         throw Exception('Unexpected token: ${param1.toString()} for generating of WalletService');
     }
@@ -875,8 +886,8 @@ Future<void> setup({
           getIt.get<AppStore>(), getIt.get<WalletCreationService>(param1: type), _walletInfoSource,
           type: type));
 
-  getIt.registerFactoryParam<WalletRestorePage, WalletType, void>(
+  getIt.registerFactoryParam<WalletRestorePage, WalletType, void>((type, _) => WalletRestorePage(
-      (type, _) => WalletRestorePage(getIt.get<WalletRestoreViewModel>(param1: type)));
+      getIt.get<WalletRestoreViewModel>(param1: type), getIt.get<SeedTypeViewModel>()));
 
   getIt.registerFactoryParam<WalletRestoreChooseDerivationViewModel, List<DerivationInfo>, void>(
       (derivations, _) => WalletRestoreChooseDerivationViewModel(derivationInfos: derivations));
@@ -940,7 +951,7 @@ Future<void> setup({
 
   getIt.registerFactory(() => BuyAmountViewModel());
 
-  getIt.registerFactory(() => BuyOptionsPage());
+  getIt.registerFactory(() => BuyOptionsPage(getIt.get<DashboardViewModel>()));
 
   getIt.registerFactory(() {
     final wallet = getIt.get<AppStore>().wallet;

lib/entities/buy_provider_types.dart

@@ -1,9 +1,11 @@
 import 'package:cake_wallet/generated/i18n.dart';
+import 'package:cw_core/wallet_type.dart';
 
 enum BuyProviderType {
   AskEachTime,
   Robinhood,
-  Onramper;
+  Onramper,
+  DFX;
 
   @override
   String toString() {
@@ -14,6 +16,42 @@ enum BuyProviderType {
         return "Robinhood";
       case BuyProviderType.Onramper:
         return "Onramper";
+      case BuyProviderType.DFX:
+        return "DFX";
+    }
+  }
+
+  static List<BuyProviderType> getAvailableProviders(WalletType walletType) {
+    switch (walletType) {
+      case WalletType.nano:
+      case WalletType.banano:
+        return [
+          BuyProviderType.AskEachTime,
+          BuyProviderType.Onramper
+        ];
+      case WalletType.monero:
+        return [
+          BuyProviderType.AskEachTime,
+          BuyProviderType.Onramper,
+          BuyProviderType.DFX
+        ];
+      case WalletType.bitcoin:
+      case WalletType.ethereum:
+        return [
+          BuyProviderType.AskEachTime,
+          BuyProviderType.Onramper,
+          BuyProviderType.DFX,
+          BuyProviderType.Robinhood
+        ];
+      case WalletType.litecoin:
+      case WalletType.bitcoinCash:
+      return [
+        BuyProviderType.AskEachTime,
+        BuyProviderType.Onramper,
+        BuyProviderType.Robinhood
+      ];
+      default:
+        return [];
     }
   }
 }

lib/entities/default_settings_migration.dart

@@ -1,5 +1,6 @@
 import 'dart:io' show Directory, File, Platform;
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
+import 'package:cake_wallet/entities/encrypt.dart';
 import 'package:cake_wallet/entities/exchange_api_mode.dart';
 import 'package:cw_core/pathForWallet.dart';
 import 'package:cake_wallet/entities/secret_store_key.dart';
@@ -26,6 +27,7 @@ const cakeWalletBitcoinElectrumUri = 'electrum.cakewallet.com:50002';
 const cakeWalletLitecoinElectrumUri = 'ltc-electrum.cakewallet.com:50002';
 const havenDefaultNodeUri = 'nodes.havenprotocol.org:443';
 const ethereumDefaultNodeUri = 'ethereum.publicnode.com';
+const polygonDefaultNodeUri = 'polygon-bor.publicnode.com';
 const cakeWalletBitcoinCashDefaultNodeUri = 'bitcoincash.stackwallet.com:50002';
 const nanoDefaultNodeUri = 'rpc.nano.to';
 const nanoDefaultPowNodeUri = 'rpc.nano.to';
@@ -64,6 +66,8 @@ Future<void> defaultSettingsMigration(
   final migrationVersions =
       List<int>.generate(migrationVersionsLength, (i) => currentVersion + (i + 1));
 
+  /// When you add a new case, increase the initialMigrationVersion parameter in the main.dart file.
+  /// This ensures that this switch case runs the newly added case.
   await Future.forEach(migrationVersions, (int version) async {
     try {
       switch (version) {
@@ -82,8 +86,7 @@ Future<void> defaultSettingsMigration(
               sharedPreferences: sharedPreferences, nodes: nodes);
           await changeLitecoinCurrentElectrumServerToDefault(
               sharedPreferences: sharedPreferences, nodes: nodes);
-          await changeHavenCurrentNodeToDefault(
+          await changeHavenCurrentNodeToDefault(sharedPreferences: sharedPreferences, nodes: nodes);
-              sharedPreferences: sharedPreferences, nodes: nodes);
           await changeBitcoinCashCurrentNodeToDefault(
               sharedPreferences: sharedPreferences, nodes: nodes);
 
@@ -175,6 +178,14 @@ Future<void> defaultSettingsMigration(
           await changeBitcoinCurrentElectrumServerToDefault(
               sharedPreferences: sharedPreferences, nodes: nodes);
           break;
+        case 24:
+          await addPolygonNodeList(nodes: nodes);
+          await changePolygonCurrentNodeToDefault(
+              sharedPreferences: sharedPreferences, nodes: nodes);
+          break;
+        case 25:
+          await rewriteSecureStoragePin(secureStorage: secureStorage);
+          break;
 
         default:
           break;
@@ -329,6 +340,11 @@ Node? getEthereumDefaultNode({required Box<Node> nodes}) {
       nodes.values.firstWhereOrNull((node) => node.type == WalletType.ethereum);
 }
 
+Node? getPolygonDefaultNode({required Box<Node> nodes}) {
+  return nodes.values.firstWhereOrNull((Node node) => node.uriRaw == polygonDefaultNodeUri) ??
+      nodes.values.firstWhereOrNull((node) => node.type == WalletType.polygon);
+}
+
 Node? getNanoDefaultNode({required Box<Node> nodes}) {
   return nodes.values.firstWhereOrNull((Node node) => node.uriRaw == nanoDefaultNodeUri) ??
       nodes.values.firstWhereOrNull((node) => node.type == WalletType.nano);
@@ -340,9 +356,9 @@ Node? getNanoDefaultPowNode({required Box<Node> nodes}) {
 }
 
 Node? getBitcoinCashDefaultElectrumServer({required Box<Node> nodes}) {
-  return nodes.values.firstWhereOrNull(
+  return nodes.values
-          (Node node) => node.uriRaw == cakeWalletBitcoinCashDefaultNodeUri)
+          .firstWhereOrNull((Node node) => node.uriRaw == cakeWalletBitcoinCashDefaultNodeUri) ??
-      ?? nodes.values.firstWhereOrNull((node) => node.type == WalletType.bitcoinCash);
+      nodes.values.firstWhereOrNull((node) => node.type == WalletType.bitcoinCash);
 }
 
 Node getMoneroDefaultNode({required Box<Node> nodes}) {
@@ -364,6 +380,37 @@ Node getMoneroDefaultNode({required Box<Node> nodes}) {
   }
 }
 
+Future<void> rewriteSecureStoragePin({required FlutterSecureStorage secureStorage}) async {
+  // the bug only affects ios/mac:
+  if (!Platform.isIOS && !Platform.isMacOS) {
+    return;
+  }
+
+  // first, get the encoded pin:
+  final keyForPinCode = generateStoreKeyFor(key: SecretStoreKey.pinCodePassword);
+  String? encodedPin;
+  try {
+    encodedPin = await secureStorage.read(key: keyForPinCode);
+  } catch (e) {
+    // either we don't have a pin, or we can't read it (maybe even because of the bug!)
+    // the only option here is to abort the migration or we risk losing the pin and locking the user out
+    return;
+  }
+
+  if (encodedPin == null) {
+    return;
+  }
+
+  // ensure we overwrite by deleting the old key first:
+  await secureStorage.delete(key: keyForPinCode);
+  await secureStorage.write(
+    key: keyForPinCode,
+    value: encodedPin,
+    iOptions: IOSOptions(accessibility: KeychainAccessibility.first_unlock),
+    mOptions: MacOsOptions(accessibility: KeychainAccessibility.first_unlock),
+  );
+}
+
 Future<void> changeBitcoinCurrentElectrumServerToDefault(
     {required SharedPreferences sharedPreferences, required Box<Node> nodes}) async {
   final server = getBitcoinDefaultElectrumServer(nodes: nodes);
@@ -381,8 +428,7 @@ Future<void> changeLitecoinCurrentElectrumServerToDefault(
 }
 
 Future<void> changeBitcoinCashCurrentNodeToDefault(
-    {required SharedPreferences sharedPreferences,
+    {required SharedPreferences sharedPreferences, required Box<Node> nodes}) async {
-      required Box<Node> nodes}) async {
   final server = getBitcoinCashDefaultElectrumServer(nodes: nodes);
   final serverId = server?.key as int ?? 0;
 
@@ -496,6 +542,7 @@ Future<void> generateBackupPassword(FlutterSecureStorage secureStorage) async {
   }
 
   final password = encrypt.Key.fromSecureRandom(32).base16;
+  await secureStorage.delete(key: key);
   await secureStorage.write(key: key, value: password);
 }
 
@@ -537,34 +584,33 @@ Future<void> checkCurrentNodes(
   final currentMoneroNodeId = sharedPreferences.getInt(PreferencesKey.currentNodeIdKey);
   final currentBitcoinElectrumSeverId =
       sharedPreferences.getInt(PreferencesKey.currentBitcoinElectrumSererIdKey);
-  final currentLitecoinElectrumSeverId = sharedPreferences
+  final currentLitecoinElectrumSeverId =
-      .getInt(PreferencesKey.currentLitecoinElectrumSererIdKey);
+      sharedPreferences.getInt(PreferencesKey.currentLitecoinElectrumSererIdKey);
-  final currentHavenNodeId = sharedPreferences
+  final currentHavenNodeId = sharedPreferences.getInt(PreferencesKey.currentHavenNodeIdKey);
-      .getInt(PreferencesKey.currentHavenNodeIdKey);
+  final currentEthereumNodeId = sharedPreferences.getInt(PreferencesKey.currentEthereumNodeIdKey);
-  final currentEthereumNodeId = sharedPreferences
+  final currentPolygonNodeId = sharedPreferences.getInt(PreferencesKey.currentPolygonNodeIdKey);
-      .getInt(PreferencesKey.currentEthereumNodeIdKey);
+  final currentNanoNodeId = sharedPreferences.getInt(PreferencesKey.currentNanoNodeIdKey);
-  final currentNanoNodeId = sharedPreferences
+  final currentNanoPowNodeId = sharedPreferences.getInt(PreferencesKey.currentNanoPowNodeIdKey);
-      .getInt(PreferencesKey.currentNanoNodeIdKey);
+  final currentBitcoinCashNodeId =
-  final currentNanoPowNodeId = sharedPreferences
+      sharedPreferences.getInt(PreferencesKey.currentBitcoinCashNodeIdKey);
-      .getInt(PreferencesKey.currentNanoPowNodeIdKey);
+  final currentMoneroNode =
-  final currentBitcoinCashNodeId = sharedPreferences
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentMoneroNodeId);
-      .getInt(PreferencesKey.currentBitcoinCashNodeIdKey);
+  final currentBitcoinElectrumServer =
-  final currentMoneroNode = nodeSource.values.firstWhereOrNull(
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentBitcoinElectrumSeverId);
-      (node) => node.key == currentMoneroNodeId);
+  final currentLitecoinElectrumServer =
-  final currentBitcoinElectrumServer = nodeSource.values.firstWhereOrNull(
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentLitecoinElectrumSeverId);
-      (node) => node.key == currentBitcoinElectrumSeverId);
+  final currentHavenNodeServer =
-  final currentLitecoinElectrumServer = nodeSource.values.firstWhereOrNull(
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentHavenNodeId);
-      (node) => node.key == currentLitecoinElectrumSeverId);
+  final currentEthereumNodeServer =
-  final currentHavenNodeServer = nodeSource.values.firstWhereOrNull(
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentEthereumNodeId);
-      (node) => node.key == currentHavenNodeId);
+  final currentPolygonNodeServer =
-  final currentEthereumNodeServer = nodeSource.values.firstWhereOrNull(
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentPolygonNodeId);
-      (node) => node.key == currentEthereumNodeId);
   final currentNanoNodeServer =
-  nodeSource.values.firstWhereOrNull((node) => node.key == currentNanoNodeId);
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentNanoNodeId);
   final currentNanoPowNodeServer =
-  powNodeSource.values.firstWhereOrNull((node) => node.key == currentNanoPowNodeId);
+      powNodeSource.values.firstWhereOrNull((node) => node.key == currentNanoPowNodeId);
-  final currentBitcoinCashNodeServer = nodeSource.values.firstWhereOrNull(
+  final currentBitcoinCashNodeServer =
-          (node) => node.key == currentBitcoinCashNodeId);
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentBitcoinCashNodeId);
   if (currentMoneroNode == null) {
     final newCakeWalletNode = Node(uri: newCakeWalletMoneroUri, type: WalletType.monero);
     await nodeSource.add(newCakeWalletNode);
@@ -616,8 +662,13 @@ Future<void> checkCurrentNodes(
   if (currentBitcoinCashNodeServer == null) {
     final node = Node(uri: cakeWalletBitcoinCashDefaultNodeUri, type: WalletType.bitcoinCash);
     await nodeSource.add(node);
-    await sharedPreferences.setInt(
+    await sharedPreferences.setInt(PreferencesKey.currentBitcoinCashNodeIdKey, node.key as int);
-        PreferencesKey.currentBitcoinCashNodeIdKey, node.key as int);
+  }
+
+  if (currentPolygonNodeServer == null) {
+    final node = Node(uri: polygonDefaultNodeUri, type: WalletType.polygon);
+    await nodeSource.add(node);
+    await sharedPreferences.setInt(PreferencesKey.currentPolygonNodeIdKey, node.key as int);
   }
 }
 
@@ -713,3 +764,20 @@ Future<void> changeNanoCurrentPowNodeToDefault(
   final nodeId = node?.key as int? ?? 0;
   await sharedPreferences.setInt(PreferencesKey.currentNanoPowNodeIdKey, nodeId);
 }
+
+Future<void> addPolygonNodeList({required Box<Node> nodes}) async {
+  final nodeList = await loadDefaultPolygonNodes();
+  for (var node in nodeList) {
+    if (nodes.values.firstWhereOrNull((element) => element.uriRaw == node.uriRaw) == null) {
+      await nodes.add(node);
+    }
+  }
+}
+
+Future<void> changePolygonCurrentNodeToDefault(
+    {required SharedPreferences sharedPreferences, required Box<Node> nodes}) async {
+  final node = getPolygonDefaultNode(nodes: nodes);
+  final nodeId = node?.key as int? ?? 0;
+
+  await sharedPreferences.setInt(PreferencesKey.currentPolygonNodeIdKey, nodeId);
+}

lib/entities/ens_record.dart

@@ -1,4 +1,5 @@
 import 'package:cake_wallet/ethereum/ethereum.dart';
+import 'package:cake_wallet/polygon/polygon.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:ens_dart/ens_dart.dart';
@@ -13,6 +14,10 @@ class EnsRecord {
       _client = ethereum!.getWeb3Client(wallet);
     }
     
+    if (wallet != null && wallet.type == WalletType.polygon) {
+      _client = polygon!.getWeb3Client(wallet);
+    }
+
     if (_client == null) {
       _client = Web3Client("https://ethereum.publicnode.com", Client());
     }
@@ -31,6 +36,7 @@ class EnsRecord {
           case WalletType.haven:
             return await ens.withName(name).getCoinAddress(CoinType.XHV);
           case WalletType.ethereum:
+          case WalletType.polygon:
           default:
             return (await ens.withName(name).getAddress()).hex;
         }

lib/entities/fs_migration.dart

@@ -147,6 +147,7 @@ Future<void> ios_migrate_pin() async {
 
   final key = generateStoreKeyFor(key: SecretStoreKey.pinCodePassword);
   final encodedPassword = encodedPinCode(pin: pinPassword);
+  await flutterSecureStorage.delete(key: key);
   await flutterSecureStorage.write(key: key, value: encodedPassword);
   await prefs.setBool('ios_migration_pin_completed', true);
 }

lib/entities/get_encryption_key.dart

@@ -9,7 +9,9 @@ Future<List<int>> getEncryptionKey(
   if (stringifiedKey == null) {
     key = CakeHive.generateSecureKey();
     final keyStringified = key.join(',');
-    await secureStorage.write(key: 'transactionDescriptionsBoxKey', value: keyStringified);
+    String storageKey = 'transactionDescriptionsBoxKey';
+    await secureStorage.delete(key: storageKey);
+    await secureStorage.write(key: storageKey, value: keyStringified);
   } else {
     key = stringifiedKey.split(',').map((i) => int.parse(i)).toList();
   }

lib/entities/main_actions.dart

@@ -1,3 +1,4 @@
+import 'package:cake_wallet/buy/dfx/dfx_buy_provider.dart';
 import 'package:cake_wallet/buy/moonpay/moonpay_buy_provider.dart';
 import 'package:cake_wallet/buy/onramper/onramper_buy_provider.dart';
 import 'package:cake_wallet/buy/robinhood/robinhood_buy_provider.dart';
@@ -19,7 +20,8 @@ class MainActions {
 
   final bool Function(DashboardViewModel viewModel)? isEnabled;
   final bool Function(DashboardViewModel viewModel)? canShow;
-  final Future<void> Function(BuildContext context, DashboardViewModel viewModel) onTap;
+  final Future<void> Function(
+      BuildContext context, DashboardViewModel viewModel) onTap;
 
   MainActions._({
     required this.name,
@@ -43,47 +45,54 @@ class MainActions {
     isEnabled: (viewModel) => viewModel.isEnabledBuyAction,
     canShow: (viewModel) => viewModel.hasBuyAction,
     onTap: (BuildContext context, DashboardViewModel viewModel) async {
+      if (!viewModel.isEnabledBuyAction) {
+        await _showErrorDialog(context, S.of(context).unsupported_asset);
+        return;
+      }
+
       final defaultBuyProvider = viewModel.defaultBuyProvider;
-      final walletType = viewModel.type;
+      try {
-
+        await _launchProviderByType(context, defaultBuyProvider);
-      if (!viewModel.isEnabledBuyAction) return;
+      } catch (e) {
-
+        await _showErrorDialog(context, e.toString());
-      switch (walletType) {
-        case WalletType.bitcoin:
-        case WalletType.litecoin:
-        case WalletType.ethereum:
-        case WalletType.bitcoinCash:
-          switch (defaultBuyProvider) {
-            case BuyProviderType.AskEachTime:
-              Navigator.pushNamed(context, Routes.buy);
-              break;
-            case BuyProviderType.Onramper:
-              await getIt.get<OnRamperBuyProvider>().launchProvider(context);
-              break;
-            case BuyProviderType.Robinhood:
-              await getIt.get<RobinhoodBuyProvider>().launchProvider(context);
-              break;
-          }
-          break;
-        case WalletType.nano:
-        case WalletType.banano:
-        case WalletType.monero:
-          await getIt.get<OnRamperBuyProvider>().launchProvider(context);
-          break;
-        default:
-          await showPopUp<void>(
-              context: context,
-              builder: (BuildContext context) {
-                return AlertWithOneAction(
-                    alertTitle: S.of(context).buy,
-                    alertContent: S.of(context).unsupported_asset,
-                    buttonText: S.of(context).ok,
-                    buttonAction: () => Navigator.of(context).pop());
-              });
       }
     },
   );
 
+  static Future<void> _launchProviderByType(BuildContext context, BuyProviderType providerType) async {
+    switch (providerType) {
+      case BuyProviderType.AskEachTime:
+        Navigator.pushNamed(context, Routes.buy);
+        break;
+      case BuyProviderType.Onramper:
+        await getIt.get<OnRamperBuyProvider>().launchProvider(context);
+        break;
+      case BuyProviderType.Robinhood:
+        await getIt.get<RobinhoodBuyProvider>().launchProvider(context);
+        break;
+      case BuyProviderType.DFX:
+        await getIt.get<DFXBuyProvider>().launchProvider(context);
+        break;
+      default:
+        throw UnsupportedError('Unsupported buy provider type');
+    }
+  }
+
+
+  static Future<void> _showErrorDialog(BuildContext context, String errorMessage) async {
+    await showPopUp<void>(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertWithOneAction(
+          alertTitle: S.of(context).buy,
+          alertContent: errorMessage,
+          buttonText: S.of(context).ok,
+          buttonAction: () => Navigator.of(context).pop(),
+        );
+      },
+    );
+  }
+
   static MainActions receiveAction = MainActions._(
     name: (context) => S.of(context).receive,
     image: 'assets/images/received.png',
@@ -124,6 +133,7 @@ class MainActions {
         case WalletType.bitcoin:
         case WalletType.litecoin:
         case WalletType.ethereum:
+        case WalletType.polygon:
         case WalletType.bitcoinCash:
           if (viewModel.isEnabledSellAction) {
             final moonPaySellProvider = MoonPaySellProvider();

lib/entities/node_list.dart

@@ -133,6 +133,22 @@ Future<List<Node>> loadDefaultNanoPowNodes() async {
   return nodes;
 }
 
+Future<List<Node>> loadDefaultPolygonNodes() async {
+  final nodesRaw = await rootBundle.loadString('assets/polygon_node_list.yml');
+  final loadedNodes = loadYaml(nodesRaw) as YamlList;
+  final nodes = <Node>[];
+
+  for (final raw in loadedNodes) {
+    if (raw is Map) {
+      final node = Node.fromMap(Map<String, Object>.from(raw));
+      node.type = WalletType.polygon;
+      nodes.add(node);
+    }
+  }
+
+  return nodes;
+}
+
 Future<void> resetToDefault(Box<Node> nodeSource) async {
   final moneroNodes = await loadDefaultNodes();
   final bitcoinElectrumServerList = await loadBitcoinElectrumServerList();
@@ -141,6 +157,8 @@ Future<void> resetToDefault(Box<Node> nodeSource) async {
   final havenNodes = await loadDefaultHavenNodes();
   final ethereumNodes = await loadDefaultEthereumNodes();
   final nanoNodes = await loadDefaultNanoNodes();
+  final polygonNodes = await loadDefaultPolygonNodes();
+
 
   final nodes = moneroNodes +
       bitcoinElectrumServerList +
@@ -148,7 +166,8 @@ Future<void> resetToDefault(Box<Node> nodeSource) async {
       havenNodes +
       ethereumNodes +
       bitcoinCashElectrumServerList +
-      nanoNodes;
+      nanoNodes +
+      polygonNodes;
 
   await nodeSource.clear();
   await nodeSource.addAll(nodes);

lib/entities/preferences_key.dart

@@ -6,6 +6,7 @@ class PreferencesKey {
   static const currentLitecoinElectrumSererIdKey = 'current_node_id_ltc';
   static const currentHavenNodeIdKey = 'current_node_id_xhv';
   static const currentEthereumNodeIdKey = 'current_node_id_eth';
+  static const currentPolygonNodeIdKey = 'current_node_id_matic';
   static const currentNanoNodeIdKey = 'current_node_id_nano';
   static const currentNanoPowNodeIdKey = 'current_node_id_nano_pow';
   static const currentBananoNodeIdKey = 'current_node_id_banano';
@@ -37,6 +38,7 @@ class PreferencesKey {
   static const havenTransactionPriority = 'current_fee_priority_haven';
   static const litecoinTransactionPriority = 'current_fee_priority_litecoin';
   static const ethereumTransactionPriority = 'current_fee_priority_ethereum';
+  static const polygonTransactionPriority = 'current_fee_priority_polygon';
   static const bitcoinCashTransactionPriority = 'current_fee_priority_bitcoin_cash';
   static const shouldShowReceiveWarning = 'should_show_receive_warning';
   static const shouldShowYatPopup = 'should_show_yat_popup';
@@ -50,6 +52,7 @@ class PreferencesKey {
   static const sortBalanceBy = 'sort_balance_by';
   static const pinNativeTokenAtTop = 'pin_native_token_at_top';
   static const useEtherscan = 'use_etherscan';
+  static const usePolygonScan = 'use_polygonscan';
   static const defaultNanoRep = 'default_nano_representative';
   static const defaultBananoRep = 'default_banano_representative';
   static const lookupsTwitter = 'looks_up_twitter';
@@ -64,6 +67,7 @@ class PreferencesKey {
 
   static const exchangeProvidersSelection = 'exchange-providers-selection';
   static const autoGenerateSubaddressStatusKey = 'auto_generate_subaddress_status';
+  static const moneroSeedType = 'monero_seed_type';
   static const clearnetDonationLink = 'clearnet_donation_link';
   static const onionDonationLink = 'onion_donation_link';
   static const lastSeenAppVersion = 'last_seen_app_version';

lib/entities/priority_for_wallet_type.dart

@@ -3,6 +3,7 @@ import 'package:cake_wallet/bitcoin_cash/bitcoin_cash.dart';
 import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/haven/haven.dart';
 import 'package:cake_wallet/monero/monero.dart';
+import 'package:cake_wallet/polygon/polygon.dart';
 import 'package:cw_core/transaction_priority.dart';
 import 'package:cw_core/wallet_type.dart';
 
@@ -24,6 +25,8 @@ List<TransactionPriority> priorityForWalletType(WalletType type) {
     case WalletType.nano:
     case WalletType.banano:
       return [];
+    case WalletType.polygon:
+      return polygon!.getTransactionPriorities();
     default:
       return [];
   }

lib/entities/seed_type.dart

@@ -0,0 +1,36 @@
+import 'package:cake_wallet/generated/i18n.dart';
+import 'package:cw_core/enumerable_item.dart';
+
+class SeedType extends EnumerableItem<int> with Serializable<int> {
+  const SeedType({required String title, required int raw}) : super(title: title, raw: raw);
+
+  static const all = [SeedType.legacy, SeedType.polyseed];
+
+  static const defaultSeedType = polyseed;
+
+  static const legacy = SeedType(raw: 0, title: 'Legacy (25 words)');
+  static const polyseed = SeedType(raw: 1, title: 'Polyseed (16 words)');
+
+  static SeedType deserialize({required int raw}) {
+    switch (raw) {
+      case 0:
+        return legacy;
+      case 1:
+        return polyseed;
+      default:
+        throw Exception('Unexpected token: $raw for SeedType deserialize');
+    }
+  }
+
+  @override
+  String toString() {
+    switch (this) {
+      case SeedType.legacy:
+        return S.current.seedtype_legacy;
+      case SeedType.polyseed:
+        return S.current.seedtype_polyseed;
+      default:
+        return '';
+    }
+  }
+}