Mnemonic for electrum

lib/bitcoin/bitcoin_wallet.dart

@@ -1,7 +1,7 @@
 import 'dart:async';
 import 'dart:convert';
+import 'package:cake_wallet/bitcoin/bitcoin_mnemonic.dart';
 import 'package:mobx/mobx.dart';
-import 'package:bip39/bip39.dart' as bip39;
 import 'package:flutter/foundation.dart';
 import 'package:rxdart/rxdart.dart';
 import 'package:bitcoin_flutter/bitcoin_flutter.dart' as bitcoin;
@@ -42,8 +42,9 @@ abstract class BitcoinWalletBase extends WalletBase<BitcoinBalance> with Store {
       BitcoinBalance initialBalance})
       : balance =
             initialBalance ?? BitcoinBalance(confirmed: 0, unconfirmed: 0),
-        hd = bitcoin.HDWallet.fromSeed(bip39.mnemonicToSeed(mnemonic),
-            network: bitcoin.bitcoin),
+        hd = bitcoin.HDWallet.fromSeed(mnemonicToSeedBytes(mnemonic),
+                network: bitcoin.bitcoin)
+            .derivePath("m/0'/0"),
         addresses = initialAddresses != null
             ? ObservableList<BitcoinAddressRecord>.of(initialAddresses)
             : ObservableList<BitcoinAddressRecord>(),
@@ -58,7 +59,7 @@ abstract class BitcoinWalletBase extends WalletBase<BitcoinBalance> with Store {
       {@required String password,
       @required String name,
       @required String dirPath,
-        @required WalletInfo walletInfo,
+      @required WalletInfo walletInfo,
       String jsonSource}) {
     final data = json.decode(jsonSource) as Map;
     final mnemonic = data['mnemonic'] as String;

lib/bitcoin/bitcoin_wallet_service.dart

@@ -1,5 +1,5 @@
 import 'dart:io';
-import 'package:bip39/bip39.dart' as bip39;
+import 'package:cake_wallet/bitcoin/bitcoin_mnemonic.dart';
 import 'package:cake_wallet/bitcoin/file.dart';
 import 'package:cake_wallet/bitcoin/bitcoin_wallet_creation_credentials.dart';
 import 'package:cake_wallet/core/wallet_base.dart';
@@ -24,7 +24,7 @@ class BitcoinWalletService extends WalletService<
         type: WalletType.bitcoin, name: credentials.name);
     final wallet = BitcoinWalletBase.build(
         dirPath: dirPath,
-        mnemonic: bip39.generateMnemonic(),
+        mnemonic: generateMnemonic(),
         password: credentials.password,
         name: credentials.name,
         walletInfo: credentials.walletInfo);

pubspec.lock

@@ -247,12 +247,19 @@ packages:
     source: hosted
     version: "2.1.1"
   crypto:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.5"
+  cryptography:
+    dependency: "direct main"
+    description:
+      name: cryptography
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.1"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -924,6 +931,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0-nullsafety.3"
+  unorm_dart:
+    dependency: "direct main"
+    description:
+      name: unorm_dart
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2"
   url_launcher:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -60,6 +60,7 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.2
   encrypt: ^4.0.0
+  crypto: ^2.1.5
   password: ^1.0.0
   basic_utils: ^1.0.8
   bitcoin_flutter: ^2.0.0
@@ -67,6 +68,8 @@ dependencies:
   connectivity: ^0.4.9+2
   keyboard_actions: ^3.3.0
   flushbar: ^1.10.4
+  unorm_dart: ^0.1.2
+  cryptography: ^1.4.0
 
 dev_dependencies:
   flutter_test: