start with passwordless recovery

lib/src/localization/generated/app_localizations.dart

@@ -1928,6 +1928,12 @@ abstract class AppLocalizations {
   /// **'Already in Group'**
   String get alreadyInGroup;
 
+  /// No description provided for @contactNotVerified.
+  ///
+  /// In en, this message translates to:
+  /// **'Not verified'**
+  String get contactNotVerified;
+
   /// No description provided for @removeContactFromGroupTitle.
   ///
   /// In en, this message translates to:

lib/src/localization/generated/app_localizations_de.dart

@@ -1026,6 +1026,9 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get alreadyInGroup => 'Bereits Mitglied';
 
+  @override
+  String get contactNotVerified => 'Nicht verifiziert';
+
   @override
   String removeContactFromGroupTitle(Object username) {
     return '$username aus dieser Gruppe entfernen?';

lib/src/localization/generated/app_localizations_en.dart

@@ -1020,6 +1020,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get alreadyInGroup => 'Already in Group';
 
+  @override
+  String get contactNotVerified => 'Not verified';
+
   @override
   String removeContactFromGroupTitle(Object username) {
     return 'Remove $username from this group?';

lib/src/localization/translations

@@ -1 +1 @@
-Subproject commit 7686a412d9911bafe7585007b4eb867270e4fde4
+Subproject commit 80b21d7e566a12d105f573cb7224b6cdfe37048b

lib/src/model/json/userdata.model.dart

@@ -156,6 +156,8 @@ class UserData {
   @JsonKey(defaultValue: false)
   bool isBackupEnabled = false;
 
+  PasswordLessRecovery? passwordLessRecovery;
+
   // Used for push notifcation via FCM.
   String? fcmToken;
 
@@ -203,3 +205,23 @@ class TwonlySafeBackup {
   List<int> encryptionKey;
   Map<String, dynamic> toJson() => _$TwonlySafeBackupToJson(this);
 }
+
+@JsonSerializable()
+class PasswordLessRecovery {
+  PasswordLessRecovery({
+    this.email,
+    this.pinSeed,
+    this.pinUnlockToken,
+    this.threshold,
+  });
+
+  factory PasswordLessRecovery.fromJson(Map<String, dynamic> json) =>
+      _$PasswordLessRecoveryFromJson(json);
+
+  String? email;
+  String? pinSeed;
+  String? pinUnlockToken;
+  int? threshold;
+
+  Map<String, dynamic> toJson() => _$PasswordLessRecoveryToJson(this);
+}

lib/src/model/json/userdata.model.g.dart

@@ -103,6 +103,11 @@ UserData _$UserDataFromJson(Map<String, dynamic> json) =>
               json['twonlySafeBackup'] as Map<String, dynamic>,
             )
       ..isBackupEnabled = json['isBackupEnabled'] as bool? ?? false
+      ..passwordLessRecovery = json['passwordLessRecovery'] == null
+          ? null
+          : PasswordLessRecovery.fromJson(
+              json['passwordLessRecovery'] as Map<String, dynamic>,
+            )
       ..fcmToken = json['fcmToken'] as String?
       ..askedForUserStudyPermission =
           json['askedForUserStudyPermission'] as bool? ?? false
@@ -171,6 +176,7 @@ Map<String, dynamic> _$UserDataToJson(UserData instance) => <String, dynamic>{
   'canUseLoginTokenForAuth': instance.canUseLoginTokenForAuth,
   'twonlySafeBackup': instance.twonlySafeBackup,
   'isBackupEnabled': instance.isBackupEnabled,
+  'passwordLessRecovery': instance.passwordLessRecovery,
   'fcmToken': instance.fcmToken,
   'askedForUserStudyPermission': instance.askedForUserStudyPermission,
   'userStudyParticipantsToken': instance.userStudyParticipantsToken,
@@ -234,3 +240,21 @@ const _$LastBackupUploadStateEnumMap = {
   LastBackupUploadState.failed: 'failed',
   LastBackupUploadState.success: 'success',
 };
+
+PasswordLessRecovery _$PasswordLessRecoveryFromJson(
+  Map<String, dynamic> json,
+) => PasswordLessRecovery(
+  email: json['email'] as String?,
+  pinSeed: json['pin_seed'] as String?,
+  pinUnlockToken: json['pin_unlock_token'] as String?,
+  threshold: (json['threshold'] as num?)?.toInt(),
+);
+
+Map<String, dynamic> _$PasswordLessRecoveryToJson(
+  PasswordLessRecovery instance,
+) => <String, dynamic>{
+  'email': instance.email,
+  'pin_seed': instance.pinSeed,
+  'pin_unlock_token': instance.pinUnlockToken,
+  'threshold': instance.threshold,
+};

lib/src/services/passwordless_recovery.service.dart

@@ -0,0 +1,23 @@
+import 'dart:async';
+
+import 'package:twonly/src/utils/log.dart';
+
+class PasswordlessRecoveryService {
+  static Future<bool> enablePasswordlessRecovery({
+    required List<int> trustedFriendIds,
+    required String secondFactorType,
+    required String secondFactorValue,
+    required int threshold,
+  }) async {
+    Log.info('Enabling passwordless recovery with:');
+    Log.info('  - Trusted Friends: $trustedFriendIds');
+    Log.info('  - Second Factor Type: $secondFactorType');
+    Log.info('  - Second Factor Value: $secondFactorValue');
+    Log.info('  - Threshold: $threshold');
+
+    // Simulate network delay
+    await Future.delayed(const Duration(milliseconds: 1000));
+
+    return true;
+  }
+}

lib/src/visual/context_menu/context_menu.helper.dart

@@ -9,11 +9,13 @@ class ContextMenu extends StatefulWidget {
   const ContextMenu({
     required this.child,
     required this.items,
+    this.minWidth,
     super.key,
   });
 
   final List<ContextMenuItem> items;
   final Widget child;
+  final double? minWidth;
 
   @override
   State<ContextMenu> createState() => _ContextMenuState();
@@ -116,17 +118,26 @@ class _ContextMenuState extends State<ContextMenu>
       ),
       items: <PopupMenuEntry<int>>[
         ...widget.items.map(
-          (item) => PopupMenuItem(
+          (item) {
-            padding: const EdgeInsets.only(right: 4),
+            Widget child = ListTile(
-            child: ListTile(
               title: Text(item.title),
               onTap: () async {
                 if (mounted) Navigator.pop(context);
                 await item.onTap();
               },
               leading: _getIcon(item.icon),
-            ),
+            );
-          ),
+            if (widget.minWidth != null) {
+              child = ConstrainedBox(
+                constraints: BoxConstraints(minWidth: widget.minWidth!),
+                child: child,
+              );
+            }
+            return PopupMenuItem(
+              padding: const EdgeInsets.only(right: 4),
+              child: child,
+            );
+          },
         ),
       ],
       position: RelativeRect.fromRect(

lib/src/visual/context_menu/user.context_menu.dart

@@ -18,6 +18,7 @@ class UserContextMenu extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return ContextMenu(
+      minWidth: 150,
       items: [
         ContextMenuItem(
           title: context.lang.contextMenuUserProfile,

lib/src/visual/elements/my_button.element.dart

@@ -10,6 +10,7 @@ enum MyButtonVariant {
   primaryMiddle,
   primaryDense,
   secondaryDense,
+  error,
 }
 
 class MyButton extends StatefulWidget {
@@ -211,6 +212,25 @@ class _MyButtonState extends State<MyButton>
             fontWeight: FontWeight.bold,
           ),
         );
+      case MyButtonVariant.error:
+        buttonStyle = FilledButton.styleFrom(
+          backgroundColor: Theme.of(context).colorScheme.errorContainer,
+          foregroundColor: Theme.of(context).colorScheme.onErrorContainer,
+          disabledBackgroundColor: disabledBgColor,
+          disabledForegroundColor: disabledFgColor,
+          minimumSize: const Size(0, 40),
+          padding: const EdgeInsets.symmetric(
+            horizontal: 16,
+          ),
+          shape: RoundedRectangleBorder(
+            borderRadius: BorderRadius.circular(12),
+          ),
+          elevation: 0,
+          textStyle: const TextStyle(
+            fontSize: 14,
+            fontWeight: FontWeight.bold,
+          ),
+        );
     }
 
     final childButton = widget.variant == MyButtonVariant.text

lib/src/visual/views/settings/backup/backup_settings.view.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:twonly/locator.dart';
@@ -8,6 +9,7 @@ import 'package:twonly/src/model/json/backup.model.dart';
 import 'package:twonly/src/services/backup.service.dart';
 import 'package:twonly/src/utils/misc.dart';
 import 'package:twonly/src/visual/elements/my_button.element.dart';
+import 'package:twonly/src/visual/views/settings/backup/passwordless_recovery/setup.passwordless_recovery.view.dart';
 
 class BackupView extends StatefulWidget {
   const BackupView({super.key});
@@ -176,9 +178,30 @@ class _BackupViewState extends State<BackupView> {
                           ),
                         ]),
                       ),
-                      const SizedBox(height: 10),
+                    ],
-                      MyButton(
+                  ),
+
+                if (userService.currentUser.passwordLessRecovery == null &&
+                    kDebugMode) ...[
+                  const SizedBox(height: 20),
+                  Center(
+                    child: MyButton(
                       variant: MyButtonVariant.primaryMiddle,
+                      onPressed: () =>
+                          context.navPush(const PasswordLessRecoverySetup()),
+                      child: const Text('Setup Passwordless Recovery'),
+                    ),
+                  ),
+                ],
+                const SizedBox(height: 20),
+                Center(
+                  child: Row(
+                    mainAxisAlignment: MainAxisAlignment.center,
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      if (userService.currentUser.isBackupEnabled) ...[
+                        MyButton(
+                          variant: MyButtonVariant.secondaryDense,
                           onPressed: _isLoading
                               ? null
                               : () async {
@@ -192,20 +215,22 @@ class _BackupViewState extends State<BackupView> {
                                 },
                           child: Text(context.lang.backupTwonlySaveNow),
                         ),
+                        const SizedBox(width: 12),
                       ],
-                  ),
+                      MyButton(
-                const SizedBox(height: 32),
-                Center(
-                  child: MyButton(
                         variant: MyButtonVariant.secondaryDense,
-                    onPressed: () =>
+                        onPressed: () => context.push(
-                        context.push(Routes.settingsBackupSetup, extra: true),
+                          Routes.settingsBackupSetup,
+                          extra: true,
+                        ),
                         child: Text(
                           !userService.currentUser.isBackupEnabled
                               ? context.lang.backupEnableBackup
                               : context.lang.backupChangePassword,
                         ),
                       ),
+                    ],
+                  ),
                 ),
               ],
             ),

lib/src/visual/views/settings/backup/passwordless_recovery/components/second_factor_picker.comp.dart

@@ -0,0 +1,166 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:twonly/src/utils/misc.dart';
+import 'package:twonly/src/visual/elements/my_input.element.dart';
+import 'package:twonly/src/visual/themes/light.dart';
+import 'package:twonly/src/visual/views/settings/backup/passwordless_recovery/setup.passwordless_recovery.view.dart';
+
+class _FactorOption {
+  const _FactorOption({
+    required this.type,
+    required this.icon,
+    required this.label,
+  });
+
+  final SecondFactorType type;
+  final IconData icon;
+  final String label;
+}
+
+const _options = [
+  _FactorOption(
+    type: SecondFactorType.none,
+    icon: Icons.block_rounded,
+    label: 'None',
+  ),
+  _FactorOption(
+    type: SecondFactorType.pin,
+    icon: Icons.dialpad_rounded,
+    label: 'PIN',
+  ),
+  _FactorOption(
+    type: SecondFactorType.email,
+    icon: Icons.email_rounded,
+    label: 'Email',
+  ),
+];
+
+class SecondFactorPicker extends StatelessWidget {
+  const SecondFactorPicker({
+    required this.selected,
+    required this.onChanged,
+    required this.pinController,
+    required this.emailController,
+    required this.onInputChanged,
+    super.key,
+  });
+
+  final SecondFactorType selected;
+  final ValueChanged<SecondFactorType> onChanged;
+  final TextEditingController pinController;
+  final TextEditingController emailController;
+  final VoidCallback onInputChanged;
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: [
+        const Text(
+          'Second factor method',
+          textAlign: TextAlign.center,
+        ),
+        const SizedBox(height: 8),
+        _buildSegmentedControl(context),
+        const SizedBox(height: 16),
+        _buildInputField(),
+      ],
+    );
+  }
+
+  Widget _buildSegmentedControl(BuildContext context) {
+    return Container(
+      decoration: BoxDecoration(
+        color: context.color.surfaceContainerLow,
+        borderRadius: BorderRadius.circular(16),
+        border: Border.all(
+          color: context.color.outlineVariant.withValues(alpha: 0.3),
+        ),
+      ),
+      child: Row(
+        children: List.generate(_options.length * 2 - 1, (index) {
+          if (index.isOdd) {
+            return Container(
+              width: 1,
+              height: 40,
+              color: context.color.outlineVariant.withValues(alpha: 0.3),
+            );
+          }
+
+          final optionIndex = index ~/ 2;
+          final option = _options[optionIndex];
+          final isSelected = selected == option.type;
+
+          BorderRadius? borderRadius;
+          if (optionIndex == 0) {
+            borderRadius = const BorderRadius.horizontal(
+              left: Radius.circular(15),
+            );
+          } else if (optionIndex == _options.length - 1) {
+            borderRadius = const BorderRadius.horizontal(
+              right: Radius.circular(15),
+            );
+          }
+
+          return Expanded(
+            child: GestureDetector(
+              onTap: () => onChanged(option.type),
+              child: Container(
+                padding: const EdgeInsets.symmetric(vertical: 8),
+                decoration: BoxDecoration(
+                  color: isSelected ? primaryColor : Colors.transparent,
+                  borderRadius: borderRadius,
+                ),
+                child: Column(
+                  children: [
+                    Icon(
+                      option.icon,
+                      color: isSelected
+                          ? Colors.black87
+                          : context.color.onSurfaceVariant,
+                    ),
+                    const SizedBox(height: 6),
+                    Text(
+                      option.label,
+                      style: TextStyle(
+                        fontWeight: FontWeight.bold,
+                        color: isSelected
+                            ? Colors.black87
+                            : context.color.onSurfaceVariant,
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+          );
+        }),
+      ),
+    );
+  }
+
+  Widget _buildInputField() {
+    return AnimatedSwitcher(
+      duration: const Duration(milliseconds: 250),
+      child: switch (selected) {
+        SecondFactorType.none => const SizedBox.shrink(
+            key: ValueKey('none_input'),
+          ),
+        SecondFactorType.pin => MyInput(
+            key: const ValueKey('pin_input'),
+            controller: pinController,
+            hintText: 'Enter PIN',
+            keyboardType: TextInputType.number,
+            inputFormatters: [FilteringTextInputFormatter.digitsOnly],
+            onChanged: (_) => onInputChanged(),
+          ),
+        SecondFactorType.email => MyInput(
+            key: const ValueKey('email_input'),
+            controller: emailController,
+            hintText: 'Enter recovery email address',
+            keyboardType: TextInputType.emailAddress,
+            onChanged: (_) => onInputChanged(),
+          ),
+      },
+    );
+  }
+}

lib/src/visual/views/settings/backup/passwordless_recovery/components/threshold_picker.comp.dart

@@ -0,0 +1,129 @@
+import 'package:flutter/material.dart';
+import 'package:twonly/src/utils/misc.dart';
+import 'package:twonly/src/visual/themes/light.dart';
+
+class ThresholdPicker extends StatelessWidget {
+  const ThresholdPicker({
+    required this.contactCount,
+    required this.minThreshold,
+    required this.currentThreshold,
+    required this.onChanged,
+    super.key,
+  });
+
+  final int contactCount;
+  final int minThreshold;
+  final int currentThreshold;
+  final ValueChanged<int> onChanged;
+
+  /// Clamps [value] between [minThreshold] and contactCount - 2.
+  static int clampThreshold({
+    required int value,
+    required int minThreshold,
+    required int contactCount,
+  }) {
+    final maxT = (contactCount - 2) < minThreshold
+        ? minThreshold
+        : (contactCount - 2);
+    if (value < minThreshold) return minThreshold;
+    if (value > maxT) return maxT;
+    return value;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (contactCount == 0) return const SizedBox.shrink();
+
+    final maxT = (contactCount - 2) < minThreshold
+        ? minThreshold
+        : (contactCount - 2);
+    final options = List.generate(
+      maxT - minThreshold + 1,
+      (i) => minThreshold + i,
+    );
+
+    if (options.length == 1) {
+      return Text(
+        'To recover your account you need ${options.first} of your selected trusted friends.',
+        textAlign: TextAlign.center,
+        style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+          color: context.color.onSurfaceVariant,
+        ),
+      );
+    }
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        Text(
+          'Required trusted friends for recovery',
+          textAlign: TextAlign.center,
+          style: Theme.of(context).textTheme.labelMedium?.copyWith(
+            color: context.color.onSurfaceVariant,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+        const SizedBox(height: 8),
+        Container(
+          decoration: BoxDecoration(
+            color: context.color.surfaceContainerLow,
+            borderRadius: BorderRadius.circular(16),
+            border: Border.all(
+              color: context.color.outlineVariant.withValues(alpha: 0.3),
+            ),
+          ),
+          child: Row(
+            children: List.generate(options.length * 2 - 1, (index) {
+              if (index.isOdd) {
+                return Container(
+                  width: 1,
+                  height: 40,
+                  color: context.color.outlineVariant.withValues(alpha: 0.3),
+                );
+              }
+
+              final optionIndex = index ~/ 2;
+              final value = options[optionIndex];
+              final isSelected = value == currentThreshold;
+
+              BorderRadius? borderRadius;
+              if (optionIndex == 0) {
+                borderRadius = const BorderRadius.horizontal(
+                  left: Radius.circular(15),
+                );
+              } else if (optionIndex == options.length - 1) {
+                borderRadius = const BorderRadius.horizontal(
+                  right: Radius.circular(15),
+                );
+              }
+
+              return Expanded(
+                child: GestureDetector(
+                  onTap: () => onChanged(value),
+                  child: Container(
+                    padding: const EdgeInsets.symmetric(vertical: 14),
+                    decoration: BoxDecoration(
+                      color: isSelected ? primaryColor : Colors.transparent,
+                      borderRadius: borderRadius,
+                    ),
+                    child: Center(
+                      child: Text(
+                        '$value',
+                        style: TextStyle(
+                          fontWeight: FontWeight.bold,
+                          color: isSelected
+                              ? Colors.black87
+                              : context.color.onSurfaceVariant,
+                        ),
+                      ),
+                    ),
+                  ),
+                ),
+              );
+            }),
+          ),
+        ),
+      ],
+    );
+  }
+}

lib/src/visual/views/settings/backup/passwordless_recovery/components/trusted_friends_card.comp.dart

@@ -0,0 +1,148 @@
+import 'package:flutter/material.dart';
+import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:twonly/src/database/daos/contacts.dao.dart';
+import 'package:twonly/src/database/twonly.db.dart';
+import 'package:twonly/src/utils/misc.dart';
+import 'package:twonly/src/visual/components/avatar_icon.comp.dart';
+import 'package:twonly/src/visual/components/verification_badge.comp.dart';
+import 'package:twonly/src/visual/elements/my_button.element.dart';
+
+class TrustedFriendsCard extends StatelessWidget {
+  const TrustedFriendsCard({
+    required this.selectedContacts,
+    required this.needsMoreFriends,
+    required this.missingCount,
+    required this.onSelectFriends,
+    required this.onRemoveContact,
+    super.key,
+  });
+
+  final List<Contact> selectedContacts;
+  final bool needsMoreFriends;
+  final int missingCount;
+  final VoidCallback onSelectFriends;
+  final void Function(int userId) onRemoveContact;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      decoration: BoxDecoration(
+        color: context.color.surfaceContainerLow,
+        borderRadius: BorderRadius.circular(20),
+        border: Border.all(
+          color: context.color.outlineVariant.withValues(alpha: 0.5),
+        ),
+      ),
+      padding: const EdgeInsets.all(16),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          if (selectedContacts.isEmpty)
+            _buildEmptyState(context)
+          else
+            Wrap(
+              spacing: 4,
+              alignment: WrapAlignment.center,
+              children: selectedContacts.map((contact) {
+                return _ContactChip(
+                  key: ValueKey(contact.userId),
+                  contact: contact,
+                  onRemove: onRemoveContact,
+                );
+              }).toList(),
+            ),
+          const SizedBox(height: 12),
+          MyButton(
+            variant: needsMoreFriends
+                ? MyButtonVariant.error
+                : MyButtonVariant.secondaryDense,
+            onPressed: onSelectFriends,
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                const Icon(Icons.add_moderator_rounded, size: 18),
+                const SizedBox(width: 8),
+                Text(
+                  needsMoreFriends
+                      ? 'Select friends ($missingCount more needed)'
+                      : 'Select trusted friends',
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildEmptyState(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 24),
+      child: Column(
+        children: [
+          Icon(
+            Icons.people_outline_rounded,
+            size: 48,
+            color: context.color.onSurfaceVariant.withValues(alpha: 0.6),
+          ),
+          const SizedBox(height: 12),
+          Text(
+            'No trusted friends selected yet',
+            style: TextStyle(
+              fontSize: 14,
+              color: context.color.onSurfaceVariant,
+              fontWeight: FontWeight.w500,
+            ),
+            textAlign: TextAlign.center,
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _ContactChip extends StatelessWidget {
+  const _ContactChip({
+    required this.contact,
+    required this.onRemove,
+    super.key,
+  });
+
+  final Contact contact;
+  final void Function(int) onRemove;
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: () => onRemove(contact.userId),
+      child: Chip(
+        avatar: AvatarIcon(
+          contactId: contact.userId,
+          fontSize: 10,
+        ),
+        label: Row(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Text(
+              getContactDisplayName(contact),
+              style: const TextStyle(fontSize: 14),
+              overflow: TextOverflow.ellipsis,
+            ),
+            const SizedBox(width: 6),
+            VerificationBadgeComp(
+              contact: contact,
+              size: 12,
+              clickable: false,
+            ),
+            const SizedBox(width: 15),
+            const FaIcon(
+              FontAwesomeIcons.xmark,
+              color: Colors.grey,
+              size: 12,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/src/visual/views/settings/backup/passwordless_recovery/setup.passwordless_recovery.view.dart

@@ -0,0 +1,213 @@
+import 'package:flutter/material.dart';
+import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:twonly/locator.dart';
+import 'package:twonly/src/database/twonly.db.dart';
+import 'package:twonly/src/services/passwordless_recovery.service.dart';
+import 'package:twonly/src/utils/misc.dart';
+import 'package:twonly/src/visual/components/snackbar.dart';
+import 'package:twonly/src/visual/elements/my_button.element.dart';
+import 'package:twonly/src/visual/views/settings/backup/passwordless_recovery/components/second_factor_picker.comp.dart';
+import 'package:twonly/src/visual/views/settings/backup/passwordless_recovery/components/threshold_picker.comp.dart';
+import 'package:twonly/src/visual/views/settings/backup/passwordless_recovery/components/trusted_friends_card.comp.dart';
+import 'package:twonly/src/visual/views/shared/select_contacts.view.dart';
+
+enum SecondFactorType { none, pin, email }
+
+class PasswordLessRecoverySetup extends StatefulWidget {
+  const PasswordLessRecoverySetup({super.key});
+
+  @override
+  State<PasswordLessRecoverySetup> createState() =>
+      _PasswordLessRecoverySetupState();
+}
+
+class _PasswordLessRecoverySetupState extends State<PasswordLessRecoverySetup> {
+  List<Contact> _selectedContacts = [];
+  SecondFactorType _secondFactor = SecondFactorType.pin;
+  final _pinController = TextEditingController();
+  final _emailController = TextEditingController();
+  bool _isLoading = false;
+  int _threshold = 2;
+
+  @override
+  void dispose() {
+    _pinController.dispose();
+    _emailController.dispose();
+    super.dispose();
+  }
+
+  // --- Threshold logic ---
+
+  int get _minThreshold => _secondFactor == SecondFactorType.none ? 4 : 2;
+
+  int get _validThreshold => ThresholdPicker.clampThreshold(
+        value: _threshold,
+        minThreshold: _minThreshold,
+        contactCount: _selectedContacts.length,
+      );
+
+  int get _minSelectedFriends => _validThreshold + 2;
+
+  // --- Validation ---
+
+  bool get _canEnable {
+    if (_selectedContacts.length < _minSelectedFriends) return false;
+    return switch (_secondFactor) {
+      SecondFactorType.none => true,
+      SecondFactorType.pin => _pinController.text.length >= 4,
+      SecondFactorType.email =>
+        RegExp(r'^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$')
+            .hasMatch(_emailController.text),
+    };
+  }
+
+  // --- Actions ---
+
+  Future<void> _selectTrustedFriends() async {
+    final selectedIds = await Navigator.push<List<int>>(
+      context,
+      MaterialPageRoute(
+        builder: (_) => SelectContactsView(
+          text: SelectedContactView(
+            title: 'Trusted Friends',
+            submitButton: (selected, _) => 'Done ($selected)',
+            submitIcon: FontAwesomeIcons.check,
+          ),
+          alreadySelected: _selectedContacts.map((c) => c.userId).toList(),
+          isAlreadySelectedLocked: false,
+          onlyVerified: true,
+          sortByMediaCount: true,
+        ),
+      ),
+    );
+
+    if (selectedIds == null) return;
+
+    final contacts = <Contact>[];
+    for (final id in selectedIds) {
+      final contact = await twonlyDB.contactsDao.getContactById(id);
+      if (contact != null) contacts.add(contact);
+    }
+    setState(() {
+      _selectedContacts = contacts;
+      _threshold = _validThreshold;
+    });
+  }
+
+  Future<void> _enable() async {
+    setState(() => _isLoading = true);
+
+    final secondFactorValue = switch (_secondFactor) {
+      SecondFactorType.none => '',
+      SecondFactorType.pin => _pinController.text,
+      SecondFactorType.email => _emailController.text,
+    };
+
+    final success =
+        await PasswordlessRecoveryService.enablePasswordlessRecovery(
+      trustedFriendIds: _selectedContacts.map((c) => c.userId).toList(),
+      secondFactorType: _secondFactor.name,
+      secondFactorValue: secondFactorValue,
+      threshold: _validThreshold,
+    );
+
+    if (!mounted) return;
+    setState(() => _isLoading = false);
+
+    if (success) {
+      showSnackbar(
+        context,
+        'Passwordless recovery enabled successfully!',
+        level: SnackbarLevel.success,
+      );
+      Navigator.pop(context);
+    }
+  }
+
+  // --- Build ---
+
+  @override
+  Widget build(BuildContext context) {
+    final needsMoreFriends = _selectedContacts.length < _minSelectedFriends;
+
+    return GestureDetector(
+      onTap: () => FocusScope.of(context).unfocus(),
+      child: Scaffold(
+        appBar: AppBar(
+          title: const Text('Passwordless Recovery'),
+        ),
+        body: SafeArea(
+          child: ListView(
+            padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
+            children: [
+              Text(
+                'Recover your identity without a password.',
+                textAlign: TextAlign.center,
+                style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                  color: context.color.onSurfaceVariant,
+                ),
+              ),
+              const SizedBox(height: 24),
+
+              TrustedFriendsCard(
+                selectedContacts: _selectedContacts,
+                needsMoreFriends: needsMoreFriends,
+                missingCount: _minSelectedFriends - _selectedContacts.length,
+                onSelectFriends: _selectTrustedFriends,
+                onRemoveContact: (userId) => setState(() {
+                  _selectedContacts.removeWhere((c) => c.userId == userId);
+                  _threshold = _validThreshold;
+                }),
+              ),
+              const SizedBox(height: 28),
+
+              SecondFactorPicker(
+                selected: _secondFactor,
+                onChanged: (type) => setState(() {
+                  _secondFactor = type;
+                  _threshold = _validThreshold;
+                }),
+                pinController: _pinController,
+                emailController: _emailController,
+                onInputChanged: () => setState(() {}),
+              ),
+              const SizedBox(height: 28),
+
+              ThresholdPicker(
+                contactCount: _selectedContacts.length,
+                minThreshold: _minThreshold,
+                currentThreshold: _validThreshold,
+                onChanged: (value) => setState(() => _threshold = value),
+              ),
+              const SizedBox(height: 28),
+
+              MyButton(
+                onPressed: (_canEnable && !_isLoading) ? _enable : null,
+                child: Row(
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  children: [
+                    if (_isLoading)
+                      const SizedBox(
+                        height: 16,
+                        width: 16,
+                        child: CircularProgressIndicator.adaptive(
+                          strokeWidth: 2,
+                          valueColor: AlwaysStoppedAnimation<Color>(
+                            Colors.black87,
+                          ),
+                        ),
+                      )
+                    else
+                      const Icon(Icons.check_circle_outline_rounded, size: 20),
+                    const SizedBox(width: 8),
+                    const Text('Enable Passwordless Recovery'),
+                  ],
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/src/visual/views/shared/select_contacts.view.dart

@@ -11,6 +11,7 @@ import 'package:twonly/src/database/twonly.db.dart';
 import 'package:twonly/src/utils/misc.dart';
 import 'package:twonly/src/visual/components/avatar_icon.comp.dart';
 import 'package:twonly/src/visual/components/flame_counter.comp.dart';
+import 'package:twonly/src/visual/components/verification_badge.comp.dart';
 import 'package:twonly/src/visual/context_menu/user.context_menu.dart';
 import 'package:twonly/src/visual/decorations/input_text.decoration.dart';
 
@@ -19,10 +20,12 @@ class SelectedContactView {
     required this.title,
     required this.submitButton,
     required this.submitIcon,
+    this.alreadySelectedSubtitle,
   });
   final String title;
   final String Function(int selected, int? limit) submitButton;
   final FaIconData submitIcon;
+  final String? alreadySelectedSubtitle;
 }
 
 class SelectContactsView extends StatefulWidget {
@@ -30,11 +33,18 @@ class SelectContactsView extends StatefulWidget {
     required this.text,
     this.alreadySelected,
     this.limit,
+    this.isAlreadySelectedLocked = true,
+    this.onlyVerified = false,
+    this.sortByMediaCount = false,
     super.key,
   });
   final SelectedContactView text;
   final List<int>? alreadySelected;
   final int? limit;
+  final bool isAlreadySelectedLocked;
+  final bool onlyVerified;
+  final bool sortByMediaCount;
+
   @override
   State<SelectContactsView> createState() => _SelectAdditionalUsers();
 }
@@ -47,12 +57,17 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
 
   final HashSet<int> selectedUsers = HashSet();
   late HashSet<int> _alreadySelected;
+  final HashSet<int> verifiedUserIds = HashSet();
 
   @override
   void initState() {
     super.initState();
 
     _alreadySelected = HashSet.from(widget.alreadySelected ?? []);
+    if (!widget.isAlreadySelectedLocked) {
+      selectedUsers.addAll(_alreadySelected);
+      _alreadySelected.clear();
+    }
 
     final stream = twonlyDB.contactsDao.watchAllAcceptedContacts();
 
@@ -65,6 +80,23 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
       });
       await filterUsers();
     });
+
+    _loadVerifiedContacts();
+  }
+
+  Future<void> _loadVerifiedContacts() async {
+    final kvs = await twonlyDB.select(twonlyDB.keyVerifications).get();
+    final urs = await (twonlyDB.select(twonlyDB.userDiscoveryUserRelations)
+          ..where((u) => u.publicKeyVerifiedTimestamp.isNotNull()))
+        .get();
+
+    if (!mounted) return;
+    setState(() {
+      verifiedUserIds
+        ..addAll(kvs.map((row) => row.contactId))
+        ..addAll(urs.map((row) => row.announcedUserId));
+    });
+    await filterUsers();
   }
 
   @override
@@ -74,21 +106,37 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
   }
 
   Future<void> filterUsers() async {
-    if (searchUserName.value.text.isEmpty) {
+    var filtered = allContacts;
-      setState(() {
+    if (searchUserName.value.text.isNotEmpty) {
-        contacts = allContacts;
+      filtered = filtered
-      });
-      return;
-    }
-    final usersFiltered = allContacts
           .where(
             (user) => getContactDisplayName(
               user,
             ).toLowerCase().contains(searchUserName.value.text.toLowerCase()),
           )
           .toList();
+    }
+
+    if (widget.sortByMediaCount) {
+      filtered.sort((a, b) {
+        final aVerified = verifiedUserIds.contains(a.userId);
+        final bVerified = verifiedUserIds.contains(b.userId);
+        if (aVerified && !bVerified) return -1;
+        if (!aVerified && bVerified) return 1;
+
+        final cmp = b.mediaSendCounter.compareTo(a.mediaSendCounter);
+        if (cmp != 0) return cmp;
+
+        return getContactDisplayName(a).compareTo(getContactDisplayName(b));
+      });
+    } else {
+      filtered.sort(
+        (a, b) => getContactDisplayName(a).compareTo(getContactDisplayName(b)),
+      );
+    }
+
     setState(() {
-      contacts = usersFiltered;
+      contacts = filtered;
     });
   }
 
@@ -119,7 +167,7 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
               : () => Navigator.pop(context, selectedUsers.toList()),
           label: Text(
             widget.text.submitButton(
-              selectedUsers.length + (widget.alreadySelected?.length ?? 0),
+              selectedUsers.length + _alreadySelected.length,
               widget.limit,
             ),
           ),
@@ -169,10 +217,15 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
                                   return Wrap(
                                     spacing: 8,
                                     children: selected.map((w) {
+                                      final contact = allContacts
+                                          .where((t) => t.userId == w)
+                                          .firstOrNull;
+                                      if (contact == null) {
+                                        return const SizedBox.shrink();
+                                      }
                                       return _Chip(
-                                        contact: allContacts.firstWhere(
+                                        key: ValueKey(contact.userId),
-                                          (t) => t.userId == w,
+                                        contact: contact,
-                                        ),
                                         onTap: toggleSelectedUser,
                                       );
                                     }).toList(),
@@ -188,13 +241,27 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
                         i -= 2;
                       }
                       final user = contacts[i];
+                      final isVerified = verifiedUserIds.contains(user.userId);
+                      final isSelectionDisabled = widget.onlyVerified && !isVerified;
                       return UserContextMenu(
                         key: ValueKey(user.userId),
                         contact: user,
                         child: ListTile(
+                          enabled: !isSelectionDisabled,
                           title: Row(
                             children: [
-                              Text(getContactDisplayName(user)),
+                              Flexible(
+                                child: Text(
+                                  getContactDisplayName(user),
+                                  overflow: TextOverflow.ellipsis,
+                                ),
+                              ),
+                              const SizedBox(width: 4),
+                              VerificationBadgeComp(
+                                contact: user,
+                                size: 14,
+                                clickable: false,
+                              ),
                               FlameCounterWidget(
                                 contactId: user.userId,
                                 prefix: true,
@@ -202,8 +269,17 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
                             ],
                           ),
                           subtitle: (_alreadySelected.contains(user.userId))
-                              ? Text(context.lang.alreadyInGroup)
+                              ? (widget.text.alreadySelectedSubtitle != null
-                              : null,
+                                  ? Text(widget.text.alreadySelectedSubtitle!)
+                                  : Text(context.lang.alreadyInGroup))
+                              : (isSelectionDisabled
+                                  ? Text(
+                                      context.lang.contactNotVerified,
+                                      style: TextStyle(
+                                        color: Theme.of(context).colorScheme.error,
+                                      ),
+                                    )
+                                  : null),
                           leading: AvatarIcon(
                             contactId: user.userId,
                             fontSize: 13,
@@ -222,11 +298,15 @@ class _SelectAdditionalUsers extends State<SelectContactsView> {
                                 );
                               },
                             ),
-                            onChanged: (value) {
+                            onChanged: isSelectionDisabled
+                                ? null
+                                : (value) {
                                     toggleSelectedUser(user.userId);
                                   },
                           ),
-                          onTap: () {
+                          onTap: isSelectionDisabled
+                              ? null
+                              : () {
                                   toggleSelectedUser(user.userId);
                                 },
                         ),
@@ -247,6 +327,7 @@ class _Chip extends StatelessWidget {
   const _Chip({
     required this.contact,
     required this.onTap,
+    super.key,
   });
   final Contact contact;
   final void Function(int) onTap;
@@ -268,6 +349,12 @@ class _Chip extends StatelessWidget {
               style: const TextStyle(fontSize: 14),
               overflow: TextOverflow.ellipsis,
             ),
+            const SizedBox(width: 4),
+            VerificationBadgeComp(
+              contact: contact,
+              size: 12,
+              clickable: false,
+            ),
             const SizedBox(width: 15),
             const FaIcon(
               FontAwesomeIcons.xmark,

rust/build.rs

@@ -1,5 +1,6 @@
 use std::io::Result;
 fn main() -> Result<()> {
     prost_build::compile_protos(&["src/user_discovery/types.proto"], &["src/"])?;
+    prost_build::compile_protos(&["src/passwordless_recovery/types.proto"], &["src/"])?;
     Ok(())
 }

rust/src/passwordless_recovery/mod.rs

@@ -1 +1,12 @@
-mod traits;
+include!(concat!(env!("OUT_DIR"), "/passwordless_recovery.rs"));
+
+struct PasswordLessRecovery {}
+
+impl PasswordLessRecovery {
+    pub(crate) fn create_shared_secret_data(
+        total_shares: i64,
+        threshold: i64,
+        pin_unlock_token: Option<Vec<u8>>,
+    ) {
+    }
+}

rust/src/passwordless_recovery/types.proto

@@ -36,8 +36,8 @@ message TrustedFriendShare {
   // The minimum threshold required to decrypte the shares.
   int32 threshold = 3;
 
-  // The actual share which will become: SecretSharedDate
+  // The actual share which will become: SharedSecretData
-  bytes share = 4;
+  bytes shared_secret_data = 4;
 
   message User {
     int64 user_id = 1;
@@ -47,7 +47,7 @@ message TrustedFriendShare {
 }
 
 // After received all shares this is decrypted by the user restoring its own 
-message SecretSharedDate {
+message SharedSecretData {
 
   // No second factor was selected
   optional RecoveryData recovery_data = 1;
@@ -81,6 +81,5 @@ message SecretSharedDate {
 // In case the backup is not available any more the user can use its user_id and his private_key to requister as a new user.
 message RecoveryData {
   int64 user_id = 1;
-  bytes private_key = 2;
+  bytes key_manager = 3;
-  bytes backup_master_key = 3;
 }