✨ Key pairs

assets/translations/en-US.json

@@ -753,5 +753,11 @@
   "accountBadges": "Badges",
   "accountBadgesDescription": "View and manage your badges.",
   "badgeActivated": "Activated badge {}.",
-  "viewDetailedAttachment": "Details"
+  "viewDetailedAttachment": "Details",
+  "screenKeyPairs": "Key Pairs",
+  "accountKeyPairs": "Key Pairs",
+  "accountKeyPairsDescription": "Manage the key pairs which used to encrypt messages.",
+  "enrollNewKeyPair": "Enroll New One",
+  "enrollNewKeyPairDescription": "Generate a new key pair.",
+  "keyPairHasPrivateKey": "With private key"
 }

assets/translations/zh-CN.json

@@ -751,5 +751,11 @@
   "accountBadges": "徽章",
   "accountBadgesDescription": "查看并管理你的徽章。",
   "badgeActivated": "已佩戴徽章 {}。",
-  "viewDetailedAttachment": "查看附件详情"
+  "viewDetailedAttachment": "查看附件详情",
+  "screenKeyPairs": "密钥对",
+  "accountKeyPairs": "密钥对",
+  "accountKeyPairsDescription": "管理用于加密信息的密钥对。",
+  "enrollNewKeyPair": "新建密钥对",
+  "enrollNewKeyPairDescription": "生成一对新密钥对。",
+  "keyPairHasPrivateKey": "有私钥"
 }

assets/translations/zh-HK.json

@@ -751,5 +751,11 @@
   "accountBadges": "徽章",
   "accountBadgesDescription": "查看並管理你的徽章。",
   "badgeActivated": "已佩戴徽章 {}。",
-  "viewDetailedAttachment": "查看附件詳情"
+  "viewDetailedAttachment": "查看附件詳情",
+  "screenKeyPairs": "密鑰對",
+  "accountKeyPairs": "密鑰對",
+  "accountKeyPairsDescription": "管理用於加密信息的密鑰對。",
+  "enrollNewKeyPair": "新建密鑰對",
+  "enrollNewKeyPairDescription": "生成一對新密鑰對，覆蓋當前的；如果已有一個密鑰將會丟棄舊密鑰的私鑰。",
+  "keyPairHasPrivateKey": "有私鑰"
 }

assets/translations/zh-TW.json

@@ -751,5 +751,11 @@
   "accountBadges": "徽章",
   "accountBadgesDescription": "查看並管理你的徽章。",
   "badgeActivated": "已佩戴徽章 {}。",
-  "viewDetailedAttachment": "查看附件詳情"
+  "viewDetailedAttachment": "查看附件詳情",
+  "screenKeyPairs": "密鑰對",
+  "accountKeyPairs": "密鑰對",
+  "accountKeyPairsDescription": "管理用於加密信息的密鑰對。",
+  "enrollNewKeyPair": "新建密鑰對",
+  "enrollNewKeyPairDescription": "生成一對新密鑰對，覆蓋當前的；如果已有一個密鑰將會丟棄舊密鑰的私鑰。",
+  "keyPairHasPrivateKey": "有私鑰"
 }

build.yaml

@@ -4,4 +4,8 @@ targets:
       json_serializable:
         options:
           explicit_to_json: true
-          field_rename: snake
+          field_rename: snake
+      drift_dev:
+        options:
+          databases:
+            my_database: lib/database/database.dart

drift_schemas/my_database/drift_schema_v1.json

@@ -0,0 +1 @@
+{"_meta":{"description":"This file contains a serialized version of schema entities for drift.","version":"1.2.0"},"options":{"store_date_time_values_as_text":false},"entities":[{"id":0,"references":[],"type":"table","data":{"name":"sn_local_chat_channel","was_declared_in_moor":false,"columns":[{"name":"id","getter_name":"id","moor_type":"int","nullable":false,"customConstraints":null,"defaultConstraints":"PRIMARY KEY AUTOINCREMENT","dialectAwareDefaultConstraints":{"sqlite":"PRIMARY KEY AUTOINCREMENT"},"default_dart":null,"default_client_dart":null,"dsl_features":["auto-increment"]},{"name":"alias","getter_name":"alias","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"content","getter_name":"content","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[],"type_converter":{"dart_expr":"const SnChannelConverter()","dart_type_name":"SnChannel"}},{"name":"created_at","getter_name":"createdAt","moor_type":"dateTime","nullable":false,"customConstraints":null,"default_dart":"const CustomExpression('CAST(strftime(\\'%s\\', CURRENT_TIMESTAMP) AS INTEGER)')","default_client_dart":null,"dsl_features":[]}],"is_virtual":false,"without_rowid":false,"constraints":[]}},{"id":1,"references":[],"type":"table","data":{"name":"sn_local_chat_message","was_declared_in_moor":false,"columns":[{"name":"id","getter_name":"id","moor_type":"int","nullable":false,"customConstraints":null,"defaultConstraints":"PRIMARY KEY AUTOINCREMENT","dialectAwareDefaultConstraints":{"sqlite":"PRIMARY KEY AUTOINCREMENT"},"default_dart":null,"default_client_dart":null,"dsl_features":["auto-increment"]},{"name":"channel_id","getter_name":"channelId","moor_type":"int","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"content","getter_name":"content","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[],"type_converter":{"dart_expr":"const SnMessageConverter()","dart_type_name":"SnChatMessage"}},{"name":"created_at","getter_name":"createdAt","moor_type":"dateTime","nullable":false,"customConstraints":null,"default_dart":"const CustomExpression('CAST(strftime(\\'%s\\', CURRENT_TIMESTAMP) AS INTEGER)')","default_client_dart":null,"dsl_features":[]}],"is_virtual":false,"without_rowid":false,"constraints":[]}}]}

drift_schemas/my_database/drift_schema_v2.json

@@ -0,0 +1 @@
+{"_meta":{"description":"This file contains a serialized version of schema entities for drift.","version":"1.2.0"},"options":{"store_date_time_values_as_text":false},"entities":[{"id":0,"references":[],"type":"table","data":{"name":"sn_local_chat_channel","was_declared_in_moor":false,"columns":[{"name":"id","getter_name":"id","moor_type":"int","nullable":false,"customConstraints":null,"defaultConstraints":"PRIMARY KEY AUTOINCREMENT","dialectAwareDefaultConstraints":{"sqlite":"PRIMARY KEY AUTOINCREMENT"},"default_dart":null,"default_client_dart":null,"dsl_features":["auto-increment"]},{"name":"alias","getter_name":"alias","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"content","getter_name":"content","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[],"type_converter":{"dart_expr":"const SnChannelConverter()","dart_type_name":"SnChannel"}},{"name":"created_at","getter_name":"createdAt","moor_type":"dateTime","nullable":false,"customConstraints":null,"default_dart":"const CustomExpression('CAST(strftime(\\'%s\\', CURRENT_TIMESTAMP) AS INTEGER)')","default_client_dart":null,"dsl_features":[]}],"is_virtual":false,"without_rowid":false,"constraints":[]}},{"id":1,"references":[],"type":"table","data":{"name":"sn_local_chat_message","was_declared_in_moor":false,"columns":[{"name":"id","getter_name":"id","moor_type":"int","nullable":false,"customConstraints":null,"defaultConstraints":"PRIMARY KEY AUTOINCREMENT","dialectAwareDefaultConstraints":{"sqlite":"PRIMARY KEY AUTOINCREMENT"},"default_dart":null,"default_client_dart":null,"dsl_features":["auto-increment"]},{"name":"channel_id","getter_name":"channelId","moor_type":"int","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"content","getter_name":"content","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[],"type_converter":{"dart_expr":"const SnMessageConverter()","dart_type_name":"SnChatMessage"}},{"name":"created_at","getter_name":"createdAt","moor_type":"dateTime","nullable":false,"customConstraints":null,"default_dart":"const CustomExpression('CAST(strftime(\\'%s\\', CURRENT_TIMESTAMP) AS INTEGER)')","default_client_dart":null,"dsl_features":[]}],"is_virtual":false,"without_rowid":false,"constraints":[]}},{"id":2,"references":[],"type":"table","data":{"name":"sn_local_key_pair","was_declared_in_moor":false,"columns":[{"name":"id","getter_name":"id","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"account_id","getter_name":"accountId","moor_type":"int","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"public_key","getter_name":"publicKey","moor_type":"string","nullable":false,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"private_key","getter_name":"privateKey","moor_type":"string","nullable":true,"customConstraints":null,"default_dart":null,"default_client_dart":null,"dsl_features":[]},{"name":"is_active","getter_name":"isActive","moor_type":"bool","nullable":false,"customConstraints":null,"defaultConstraints":"CHECK (\"is_active\" IN (0, 1))","dialectAwareDefaultConstraints":{"sqlite":"CHECK (\"is_active\" IN (0, 1))"},"default_dart":"const CustomExpression('0')","default_client_dart":null,"dsl_features":[]}],"is_virtual":false,"without_rowid":false,"constraints":[]}}]}

ios/Podfile.lock

@@ -37,6 +37,8 @@ PODS:
   - DKPhotoGallery/Resource (0.0.19):
     - SDWebImage
     - SwiftyGif
+  - fast_rsa (0.6.0):
+    - Flutter
   - file_picker (0.0.1):
     - DKImagePickerController/PhotoGallery
     - Flutter
@@ -262,6 +264,7 @@ DEPENDENCIES:
   - connectivity_plus (from `.symlinks/plugins/connectivity_plus/ios`)
   - croppy (from `.symlinks/plugins/croppy/ios`)
   - device_info_plus (from `.symlinks/plugins/device_info_plus/ios`)
+  - fast_rsa (from `.symlinks/plugins/fast_rsa/ios`)
   - file_picker (from `.symlinks/plugins/file_picker/ios`)
   - file_saver (from `.symlinks/plugins/file_saver/ios`)
   - firebase_analytics (from `.symlinks/plugins/firebase_analytics/ios`)
@@ -331,6 +334,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/croppy/ios"
   device_info_plus:
     :path: ".symlinks/plugins/device_info_plus/ios"
+  fast_rsa:
+    :path: ".symlinks/plugins/fast_rsa/ios"
   file_picker:
     :path: ".symlinks/plugins/file_picker/ios"
   file_saver:
@@ -411,6 +416,7 @@ SPEC CHECKSUMS:
   device_info_plus: bf2e3232933866d73fe290f2942f2156cdd10342
   DKImagePickerController: 946cec48c7873164274ecc4624d19e3da4c1ef3c
   DKPhotoGallery: b3834fecb755ee09a593d7c9e389d8b5d6deed60
+  fast_rsa: dc48fb05f26bb108863de122b2a9f5554e8e2591
   file_picker: b159e0c068aef54932bb15dc9fd1571818edaf49
   file_saver: 503e386464dbe118f630e17b4c2e1190fa0cf808
   Firebase: d80354ed7f6df5f9aca55e9eb47cc4b634735eaf

lib/database/database.dart

@@ -2,16 +2,18 @@ import 'package:drift/drift.dart';
 import 'package:drift_flutter/drift_flutter.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:surface/database/chat.dart';
+import 'package:surface/database/database.steps.dart';
+import 'package:surface/database/keypair.dart';
 import 'package:surface/types/chat.dart';
 
 part 'database.g.dart';
 
-@DriftDatabase(tables: [SnLocalChatChannel, SnLocalChatMessage])
+@DriftDatabase(tables: [SnLocalChatChannel, SnLocalChatMessage, SnLocalKeyPair])
 class AppDatabase extends _$AppDatabase {
-  AppDatabase() : super(_openConnection());
+  AppDatabase([QueryExecutor? e]) : super(e ?? _openConnection());
 
   @override
-  int get schemaVersion => 1;
+  int get schemaVersion => 2;
 
   static QueryExecutor _openConnection() {
     return driftDatabase(
@@ -25,4 +27,13 @@ class AppDatabase extends _$AppDatabase {
       ),
     );
   }
+
+  @override
+  MigrationStrategy get migration {
+    return MigrationStrategy(
+      onUpgrade: stepByStep(from1To2: (m, schema) async {
+        // Nothing else to do here
+      }),
+    );
+  }
 }

lib/database/database.g.dart

@@ -538,6 +538,322 @@ class SnLocalChatMessageCompanion
   }
 }
 
+class $SnLocalKeyPairTable extends SnLocalKeyPair
+    with TableInfo<$SnLocalKeyPairTable, SnLocalKeyPairData> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  $SnLocalKeyPairTable(this.attachedDatabase, [this._alias]);
+  static const VerificationMeta _idMeta = const VerificationMeta('id');
+  @override
+  late final GeneratedColumn<String> id = GeneratedColumn<String>(
+      'id', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  static const VerificationMeta _accountIdMeta =
+      const VerificationMeta('accountId');
+  @override
+  late final GeneratedColumn<int> accountId = GeneratedColumn<int>(
+      'account_id', aliasedName, false,
+      type: DriftSqlType.int, requiredDuringInsert: true);
+  static const VerificationMeta _publicKeyMeta =
+      const VerificationMeta('publicKey');
+  @override
+  late final GeneratedColumn<String> publicKey = GeneratedColumn<String>(
+      'public_key', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  static const VerificationMeta _privateKeyMeta =
+      const VerificationMeta('privateKey');
+  @override
+  late final GeneratedColumn<String> privateKey = GeneratedColumn<String>(
+      'private_key', aliasedName, true,
+      type: DriftSqlType.string, requiredDuringInsert: false);
+  static const VerificationMeta _isActiveMeta =
+      const VerificationMeta('isActive');
+  @override
+  late final GeneratedColumn<bool> isActive = GeneratedColumn<bool>(
+      'is_active', aliasedName, false,
+      type: DriftSqlType.bool,
+      requiredDuringInsert: false,
+      defaultConstraints:
+          GeneratedColumn.constraintIsAlways('CHECK ("is_active" IN (0, 1))'),
+      defaultValue: Constant(false));
+  @override
+  List<GeneratedColumn> get $columns =>
+      [id, accountId, publicKey, privateKey, isActive];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'sn_local_key_pair';
+  @override
+  VerificationContext validateIntegrity(Insertable<SnLocalKeyPairData> instance,
+      {bool isInserting = false}) {
+    final context = VerificationContext();
+    final data = instance.toColumns(true);
+    if (data.containsKey('id')) {
+      context.handle(_idMeta, id.isAcceptableOrUnknown(data['id']!, _idMeta));
+    } else if (isInserting) {
+      context.missing(_idMeta);
+    }
+    if (data.containsKey('account_id')) {
+      context.handle(_accountIdMeta,
+          accountId.isAcceptableOrUnknown(data['account_id']!, _accountIdMeta));
+    } else if (isInserting) {
+      context.missing(_accountIdMeta);
+    }
+    if (data.containsKey('public_key')) {
+      context.handle(_publicKeyMeta,
+          publicKey.isAcceptableOrUnknown(data['public_key']!, _publicKeyMeta));
+    } else if (isInserting) {
+      context.missing(_publicKeyMeta);
+    }
+    if (data.containsKey('private_key')) {
+      context.handle(
+          _privateKeyMeta,
+          privateKey.isAcceptableOrUnknown(
+              data['private_key']!, _privateKeyMeta));
+    }
+    if (data.containsKey('is_active')) {
+      context.handle(_isActiveMeta,
+          isActive.isAcceptableOrUnknown(data['is_active']!, _isActiveMeta));
+    }
+    return context;
+  }
+
+  @override
+  Set<GeneratedColumn> get $primaryKey => const {};
+  @override
+  SnLocalKeyPairData map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return SnLocalKeyPairData(
+      id: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}id'])!,
+      accountId: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}account_id'])!,
+      publicKey: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}public_key'])!,
+      privateKey: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}private_key']),
+      isActive: attachedDatabase.typeMapping
+          .read(DriftSqlType.bool, data['${effectivePrefix}is_active'])!,
+    );
+  }
+
+  @override
+  $SnLocalKeyPairTable createAlias(String alias) {
+    return $SnLocalKeyPairTable(attachedDatabase, alias);
+  }
+}
+
+class SnLocalKeyPairData extends DataClass
+    implements Insertable<SnLocalKeyPairData> {
+  final String id;
+  final int accountId;
+  final String publicKey;
+  final String? privateKey;
+  final bool isActive;
+  const SnLocalKeyPairData(
+      {required this.id,
+      required this.accountId,
+      required this.publicKey,
+      this.privateKey,
+      required this.isActive});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['id'] = Variable<String>(id);
+    map['account_id'] = Variable<int>(accountId);
+    map['public_key'] = Variable<String>(publicKey);
+    if (!nullToAbsent || privateKey != null) {
+      map['private_key'] = Variable<String>(privateKey);
+    }
+    map['is_active'] = Variable<bool>(isActive);
+    return map;
+  }
+
+  SnLocalKeyPairCompanion toCompanion(bool nullToAbsent) {
+    return SnLocalKeyPairCompanion(
+      id: Value(id),
+      accountId: Value(accountId),
+      publicKey: Value(publicKey),
+      privateKey: privateKey == null && nullToAbsent
+          ? const Value.absent()
+          : Value(privateKey),
+      isActive: Value(isActive),
+    );
+  }
+
+  factory SnLocalKeyPairData.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return SnLocalKeyPairData(
+      id: serializer.fromJson<String>(json['id']),
+      accountId: serializer.fromJson<int>(json['accountId']),
+      publicKey: serializer.fromJson<String>(json['publicKey']),
+      privateKey: serializer.fromJson<String?>(json['privateKey']),
+      isActive: serializer.fromJson<bool>(json['isActive']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'id': serializer.toJson<String>(id),
+      'accountId': serializer.toJson<int>(accountId),
+      'publicKey': serializer.toJson<String>(publicKey),
+      'privateKey': serializer.toJson<String?>(privateKey),
+      'isActive': serializer.toJson<bool>(isActive),
+    };
+  }
+
+  SnLocalKeyPairData copyWith(
+          {String? id,
+          int? accountId,
+          String? publicKey,
+          Value<String?> privateKey = const Value.absent(),
+          bool? isActive}) =>
+      SnLocalKeyPairData(
+        id: id ?? this.id,
+        accountId: accountId ?? this.accountId,
+        publicKey: publicKey ?? this.publicKey,
+        privateKey: privateKey.present ? privateKey.value : this.privateKey,
+        isActive: isActive ?? this.isActive,
+      );
+  SnLocalKeyPairData copyWithCompanion(SnLocalKeyPairCompanion data) {
+    return SnLocalKeyPairData(
+      id: data.id.present ? data.id.value : this.id,
+      accountId: data.accountId.present ? data.accountId.value : this.accountId,
+      publicKey: data.publicKey.present ? data.publicKey.value : this.publicKey,
+      privateKey:
+          data.privateKey.present ? data.privateKey.value : this.privateKey,
+      isActive: data.isActive.present ? data.isActive.value : this.isActive,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalKeyPairData(')
+          ..write('id: $id, ')
+          ..write('accountId: $accountId, ')
+          ..write('publicKey: $publicKey, ')
+          ..write('privateKey: $privateKey, ')
+          ..write('isActive: $isActive')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(id, accountId, publicKey, privateKey, isActive);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is SnLocalKeyPairData &&
+          other.id == this.id &&
+          other.accountId == this.accountId &&
+          other.publicKey == this.publicKey &&
+          other.privateKey == this.privateKey &&
+          other.isActive == this.isActive);
+}
+
+class SnLocalKeyPairCompanion extends UpdateCompanion<SnLocalKeyPairData> {
+  final Value<String> id;
+  final Value<int> accountId;
+  final Value<String> publicKey;
+  final Value<String?> privateKey;
+  final Value<bool> isActive;
+  final Value<int> rowid;
+  const SnLocalKeyPairCompanion({
+    this.id = const Value.absent(),
+    this.accountId = const Value.absent(),
+    this.publicKey = const Value.absent(),
+    this.privateKey = const Value.absent(),
+    this.isActive = const Value.absent(),
+    this.rowid = const Value.absent(),
+  });
+  SnLocalKeyPairCompanion.insert({
+    required String id,
+    required int accountId,
+    required String publicKey,
+    this.privateKey = const Value.absent(),
+    this.isActive = const Value.absent(),
+    this.rowid = const Value.absent(),
+  })  : id = Value(id),
+        accountId = Value(accountId),
+        publicKey = Value(publicKey);
+  static Insertable<SnLocalKeyPairData> custom({
+    Expression<String>? id,
+    Expression<int>? accountId,
+    Expression<String>? publicKey,
+    Expression<String>? privateKey,
+    Expression<bool>? isActive,
+    Expression<int>? rowid,
+  }) {
+    return RawValuesInsertable({
+      if (id != null) 'id': id,
+      if (accountId != null) 'account_id': accountId,
+      if (publicKey != null) 'public_key': publicKey,
+      if (privateKey != null) 'private_key': privateKey,
+      if (isActive != null) 'is_active': isActive,
+      if (rowid != null) 'rowid': rowid,
+    });
+  }
+
+  SnLocalKeyPairCompanion copyWith(
+      {Value<String>? id,
+      Value<int>? accountId,
+      Value<String>? publicKey,
+      Value<String?>? privateKey,
+      Value<bool>? isActive,
+      Value<int>? rowid}) {
+    return SnLocalKeyPairCompanion(
+      id: id ?? this.id,
+      accountId: accountId ?? this.accountId,
+      publicKey: publicKey ?? this.publicKey,
+      privateKey: privateKey ?? this.privateKey,
+      isActive: isActive ?? this.isActive,
+      rowid: rowid ?? this.rowid,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (id.present) {
+      map['id'] = Variable<String>(id.value);
+    }
+    if (accountId.present) {
+      map['account_id'] = Variable<int>(accountId.value);
+    }
+    if (publicKey.present) {
+      map['public_key'] = Variable<String>(publicKey.value);
+    }
+    if (privateKey.present) {
+      map['private_key'] = Variable<String>(privateKey.value);
+    }
+    if (isActive.present) {
+      map['is_active'] = Variable<bool>(isActive.value);
+    }
+    if (rowid.present) {
+      map['rowid'] = Variable<int>(rowid.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalKeyPairCompanion(')
+          ..write('id: $id, ')
+          ..write('accountId: $accountId, ')
+          ..write('publicKey: $publicKey, ')
+          ..write('privateKey: $privateKey, ')
+          ..write('isActive: $isActive, ')
+          ..write('rowid: $rowid')
+          ..write(')'))
+        .toString();
+  }
+}
+
 abstract class _$AppDatabase extends GeneratedDatabase {
   _$AppDatabase(QueryExecutor e) : super(e);
   $AppDatabaseManager get managers => $AppDatabaseManager(this);
@@ -545,12 +861,13 @@ abstract class _$AppDatabase extends GeneratedDatabase {
       $SnLocalChatChannelTable(this);
   late final $SnLocalChatMessageTable snLocalChatMessage =
       $SnLocalChatMessageTable(this);
+  late final $SnLocalKeyPairTable snLocalKeyPair = $SnLocalKeyPairTable(this);
   @override
   Iterable<TableInfo<Table, Object?>> get allTables =>
       allSchemaEntities.whereType<TableInfo<Table, Object?>>();
   @override
   List<DatabaseSchemaEntity> get allSchemaEntities =>
-      [snLocalChatChannel, snLocalChatMessage];
+      [snLocalChatChannel, snLocalChatMessage, snLocalKeyPair];
 }
 
 typedef $$SnLocalChatChannelTableCreateCompanionBuilder
@@ -869,6 +1186,180 @@ typedef $$SnLocalChatMessageTableProcessedTableManager = ProcessedTableManager<
     ),
     SnLocalChatMessageData,
     PrefetchHooks Function()>;
+typedef $$SnLocalKeyPairTableCreateCompanionBuilder = SnLocalKeyPairCompanion
+    Function({
+  required String id,
+  required int accountId,
+  required String publicKey,
+  Value<String?> privateKey,
+  Value<bool> isActive,
+  Value<int> rowid,
+});
+typedef $$SnLocalKeyPairTableUpdateCompanionBuilder = SnLocalKeyPairCompanion
+    Function({
+  Value<String> id,
+  Value<int> accountId,
+  Value<String> publicKey,
+  Value<String?> privateKey,
+  Value<bool> isActive,
+  Value<int> rowid,
+});
+
+class $$SnLocalKeyPairTableFilterComposer
+    extends Composer<_$AppDatabase, $SnLocalKeyPairTable> {
+  $$SnLocalKeyPairTableFilterComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  ColumnFilters<String> get id => $composableBuilder(
+      column: $table.id, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<int> get accountId => $composableBuilder(
+      column: $table.accountId, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<String> get publicKey => $composableBuilder(
+      column: $table.publicKey, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<String> get privateKey => $composableBuilder(
+      column: $table.privateKey, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<bool> get isActive => $composableBuilder(
+      column: $table.isActive, builder: (column) => ColumnFilters(column));
+}
+
+class $$SnLocalKeyPairTableOrderingComposer
+    extends Composer<_$AppDatabase, $SnLocalKeyPairTable> {
+  $$SnLocalKeyPairTableOrderingComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  ColumnOrderings<String> get id => $composableBuilder(
+      column: $table.id, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<int> get accountId => $composableBuilder(
+      column: $table.accountId, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<String> get publicKey => $composableBuilder(
+      column: $table.publicKey, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<String> get privateKey => $composableBuilder(
+      column: $table.privateKey, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<bool> get isActive => $composableBuilder(
+      column: $table.isActive, builder: (column) => ColumnOrderings(column));
+}
+
+class $$SnLocalKeyPairTableAnnotationComposer
+    extends Composer<_$AppDatabase, $SnLocalKeyPairTable> {
+  $$SnLocalKeyPairTableAnnotationComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  GeneratedColumn<String> get id =>
+      $composableBuilder(column: $table.id, builder: (column) => column);
+
+  GeneratedColumn<int> get accountId =>
+      $composableBuilder(column: $table.accountId, builder: (column) => column);
+
+  GeneratedColumn<String> get publicKey =>
+      $composableBuilder(column: $table.publicKey, builder: (column) => column);
+
+  GeneratedColumn<String> get privateKey => $composableBuilder(
+      column: $table.privateKey, builder: (column) => column);
+
+  GeneratedColumn<bool> get isActive =>
+      $composableBuilder(column: $table.isActive, builder: (column) => column);
+}
+
+class $$SnLocalKeyPairTableTableManager extends RootTableManager<
+    _$AppDatabase,
+    $SnLocalKeyPairTable,
+    SnLocalKeyPairData,
+    $$SnLocalKeyPairTableFilterComposer,
+    $$SnLocalKeyPairTableOrderingComposer,
+    $$SnLocalKeyPairTableAnnotationComposer,
+    $$SnLocalKeyPairTableCreateCompanionBuilder,
+    $$SnLocalKeyPairTableUpdateCompanionBuilder,
+    (
+      SnLocalKeyPairData,
+      BaseReferences<_$AppDatabase, $SnLocalKeyPairTable, SnLocalKeyPairData>
+    ),
+    SnLocalKeyPairData,
+    PrefetchHooks Function()> {
+  $$SnLocalKeyPairTableTableManager(
+      _$AppDatabase db, $SnLocalKeyPairTable table)
+      : super(TableManagerState(
+          db: db,
+          table: table,
+          createFilteringComposer: () =>
+              $$SnLocalKeyPairTableFilterComposer($db: db, $table: table),
+          createOrderingComposer: () =>
+              $$SnLocalKeyPairTableOrderingComposer($db: db, $table: table),
+          createComputedFieldComposer: () =>
+              $$SnLocalKeyPairTableAnnotationComposer($db: db, $table: table),
+          updateCompanionCallback: ({
+            Value<String> id = const Value.absent(),
+            Value<int> accountId = const Value.absent(),
+            Value<String> publicKey = const Value.absent(),
+            Value<String?> privateKey = const Value.absent(),
+            Value<bool> isActive = const Value.absent(),
+            Value<int> rowid = const Value.absent(),
+          }) =>
+              SnLocalKeyPairCompanion(
+            id: id,
+            accountId: accountId,
+            publicKey: publicKey,
+            privateKey: privateKey,
+            isActive: isActive,
+            rowid: rowid,
+          ),
+          createCompanionCallback: ({
+            required String id,
+            required int accountId,
+            required String publicKey,
+            Value<String?> privateKey = const Value.absent(),
+            Value<bool> isActive = const Value.absent(),
+            Value<int> rowid = const Value.absent(),
+          }) =>
+              SnLocalKeyPairCompanion.insert(
+            id: id,
+            accountId: accountId,
+            publicKey: publicKey,
+            privateKey: privateKey,
+            isActive: isActive,
+            rowid: rowid,
+          ),
+          withReferenceMapper: (p0) => p0
+              .map((e) => (e.readTable(table), BaseReferences(db, table, e)))
+              .toList(),
+          prefetchHooksCallback: null,
+        ));
+}
+
+typedef $$SnLocalKeyPairTableProcessedTableManager = ProcessedTableManager<
+    _$AppDatabase,
+    $SnLocalKeyPairTable,
+    SnLocalKeyPairData,
+    $$SnLocalKeyPairTableFilterComposer,
+    $$SnLocalKeyPairTableOrderingComposer,
+    $$SnLocalKeyPairTableAnnotationComposer,
+    $$SnLocalKeyPairTableCreateCompanionBuilder,
+    $$SnLocalKeyPairTableUpdateCompanionBuilder,
+    (
+      SnLocalKeyPairData,
+      BaseReferences<_$AppDatabase, $SnLocalKeyPairTable, SnLocalKeyPairData>
+    ),
+    SnLocalKeyPairData,
+    PrefetchHooks Function()>;
 
 class $AppDatabaseManager {
   final _$AppDatabase _db;
@@ -877,4 +1368,6 @@ class $AppDatabaseManager {
       $$SnLocalChatChannelTableTableManager(_db, _db.snLocalChatChannel);
   $$SnLocalChatMessageTableTableManager get snLocalChatMessage =>
       $$SnLocalChatMessageTableTableManager(_db, _db.snLocalChatMessage);
+  $$SnLocalKeyPairTableTableManager get snLocalKeyPair =>
+      $$SnLocalKeyPairTableTableManager(_db, _db.snLocalKeyPair);
 }

lib/database/database.steps.dart

@@ -0,0 +1,163 @@
+// dart format width=80
+import 'package:drift/internal/versioned_schema.dart' as i0;
+import 'package:drift/drift.dart' as i1;
+import 'package:drift/drift.dart'; // ignore_for_file: type=lint,unused_import
+
+// GENERATED BY drift_dev, DO NOT MODIFY.
+final class Schema2 extends i0.VersionedSchema {
+  Schema2({required super.database}) : super(version: 2);
+  @override
+  late final List<i1.DatabaseSchemaEntity> entities = [
+    snLocalChatChannel,
+    snLocalChatMessage,
+    snLocalKeyPair,
+  ];
+  late final Shape0 snLocalChatChannel = Shape0(
+      source: i0.VersionedTable(
+        entityName: 'sn_local_chat_channel',
+        withoutRowId: false,
+        isStrict: false,
+        tableConstraints: [],
+        columns: [
+          _column_0,
+          _column_1,
+          _column_2,
+          _column_3,
+        ],
+        attachedDatabase: database,
+      ),
+      alias: null);
+  late final Shape1 snLocalChatMessage = Shape1(
+      source: i0.VersionedTable(
+        entityName: 'sn_local_chat_message',
+        withoutRowId: false,
+        isStrict: false,
+        tableConstraints: [],
+        columns: [
+          _column_0,
+          _column_4,
+          _column_2,
+          _column_3,
+        ],
+        attachedDatabase: database,
+      ),
+      alias: null);
+  late final Shape2 snLocalKeyPair = Shape2(
+      source: i0.VersionedTable(
+        entityName: 'sn_local_key_pair',
+        withoutRowId: false,
+        isStrict: false,
+        tableConstraints: [],
+        columns: [
+          _column_5,
+          _column_6,
+          _column_7,
+          _column_8,
+          _column_9,
+        ],
+        attachedDatabase: database,
+      ),
+      alias: null);
+}
+
+class Shape0 extends i0.VersionedTable {
+  Shape0({required super.source, required super.alias}) : super.aliased();
+  i1.GeneratedColumn<int> get id =>
+      columnsByName['id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<String> get alias =>
+      columnsByName['alias']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<String> get content =>
+      columnsByName['content']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<DateTime> get createdAt =>
+      columnsByName['created_at']! as i1.GeneratedColumn<DateTime>;
+}
+
+i1.GeneratedColumn<int> _column_0(String aliasedName) =>
+    i1.GeneratedColumn<int>('id', aliasedName, false,
+        hasAutoIncrement: true,
+        type: i1.DriftSqlType.int,
+        defaultConstraints:
+            i1.GeneratedColumn.constraintIsAlways('PRIMARY KEY AUTOINCREMENT'));
+i1.GeneratedColumn<String> _column_1(String aliasedName) =>
+    i1.GeneratedColumn<String>('alias', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<String> _column_2(String aliasedName) =>
+    i1.GeneratedColumn<String>('content', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<DateTime> _column_3(String aliasedName) =>
+    i1.GeneratedColumn<DateTime>('created_at', aliasedName, false,
+        type: i1.DriftSqlType.dateTime,
+        defaultValue: const CustomExpression(
+            'CAST(strftime(\'%s\', CURRENT_TIMESTAMP) AS INTEGER)'));
+
+class Shape1 extends i0.VersionedTable {
+  Shape1({required super.source, required super.alias}) : super.aliased();
+  i1.GeneratedColumn<int> get id =>
+      columnsByName['id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<int> get channelId =>
+      columnsByName['channel_id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<String> get content =>
+      columnsByName['content']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<DateTime> get createdAt =>
+      columnsByName['created_at']! as i1.GeneratedColumn<DateTime>;
+}
+
+i1.GeneratedColumn<int> _column_4(String aliasedName) =>
+    i1.GeneratedColumn<int>('channel_id', aliasedName, false,
+        type: i1.DriftSqlType.int);
+
+class Shape2 extends i0.VersionedTable {
+  Shape2({required super.source, required super.alias}) : super.aliased();
+  i1.GeneratedColumn<String> get id =>
+      columnsByName['id']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<int> get accountId =>
+      columnsByName['account_id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<String> get publicKey =>
+      columnsByName['public_key']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<String> get privateKey =>
+      columnsByName['private_key']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<bool> get isActive =>
+      columnsByName['is_active']! as i1.GeneratedColumn<bool>;
+}
+
+i1.GeneratedColumn<String> _column_5(String aliasedName) =>
+    i1.GeneratedColumn<String>('id', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<int> _column_6(String aliasedName) =>
+    i1.GeneratedColumn<int>('account_id', aliasedName, false,
+        type: i1.DriftSqlType.int);
+i1.GeneratedColumn<String> _column_7(String aliasedName) =>
+    i1.GeneratedColumn<String>('public_key', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<String> _column_8(String aliasedName) =>
+    i1.GeneratedColumn<String>('private_key', aliasedName, true,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<bool> _column_9(String aliasedName) =>
+    i1.GeneratedColumn<bool>('is_active', aliasedName, false,
+        type: i1.DriftSqlType.bool,
+        defaultConstraints: i1.GeneratedColumn.constraintIsAlways(
+            'CHECK ("is_active" IN (0, 1))'),
+        defaultValue: const CustomExpression('0'));
+i0.MigrationStepWithVersion migrationSteps({
+  required Future<void> Function(i1.Migrator m, Schema2 schema) from1To2,
+}) {
+  return (currentVersion, database) async {
+    switch (currentVersion) {
+      case 1:
+        final schema = Schema2(database: database);
+        final migrator = i1.Migrator(database, schema);
+        await from1To2(migrator, schema);
+        return 2;
+      default:
+        throw ArgumentError.value('Unknown migration from $currentVersion');
+    }
+  };
+}
+
+i1.OnUpgrade stepByStep({
+  required Future<void> Function(i1.Migrator m, Schema2 schema) from1To2,
+}) =>
+    i0.VersionedSchema.stepByStepHelper(
+        step: migrationSteps(
+      from1To2: from1To2,
+    ));

lib/database/keypair.dart

@@ -0,0 +1,13 @@
+import 'package:drift/drift.dart';
+
+class SnLocalKeyPair extends Table {
+  TextColumn get id => text()();
+
+  IntColumn get accountId => integer()();
+
+  TextColumn get publicKey => text()();
+
+  TextColumn get privateKey => text().nullable()();
+
+  BoolColumn get isActive => boolean().withDefault(Constant(false))();
+}

lib/main.dart

@@ -25,6 +25,7 @@ import 'package:surface/providers/channel.dart';
 import 'package:surface/providers/chat_call.dart';
 import 'package:surface/providers/config.dart';
 import 'package:surface/providers/database.dart';
+import 'package:surface/providers/keypair.dart';
 import 'package:surface/providers/link_preview.dart';
 import 'package:surface/providers/navigation.dart';
 import 'package:surface/providers/notification.dart';
@@ -108,7 +109,8 @@ void main() async {
   }
 
   if (!kIsWeb && Platform.isAndroid) {
-    final ImagePickerPlatform imagePickerImplementation = ImagePickerPlatform.instance;
+    final ImagePickerPlatform imagePickerImplementation =
+        ImagePickerPlatform.instance;
     if (imagePickerImplementation is ImagePickerAndroid) {
       imagePickerImplementation.useAndroidPhotoPicker = true;
     }
@@ -160,6 +162,7 @@ class SolianApp extends StatelessWidget {
             Provider(create: (ctx) => SnStickerProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => UserProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => WebSocketProvider(ctx)),
+            Provider(create: (ctx) => KeyPairProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => NotificationProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => ChatChannelProvider(ctx)),
             ChangeNotifierProvider(create: (ctx) => ChatCallProvider(ctx)),
@@ -227,7 +230,8 @@ class _AppSplashScreenState extends State<_AppSplashScreen> with TrayListener {
     if (prefs.containsKey('first_boot_time')) {
       final rawTime = prefs.getString('first_boot_time');
       final time = DateTime.tryParse(rawTime ?? '');
-      if (time != null && time.isBefore(DateTime.now().subtract(const Duration(days: 3)))) {
+      if (time != null &&
+          time.isBefore(DateTime.now().subtract(const Duration(days: 3)))) {
         final inAppReview = InAppReview.instance;
         if (prefs.getBool('rating_requested') == true) return;
         if (await inAppReview.isAvailable()) {
@@ -258,12 +262,18 @@ class _AppSplashScreenState extends State<_AppSplashScreen> with TrayListener {
       final remoteVersionString = resp.data?['tag_name'] ?? '0.0.0+0';
       final remoteVersion = Version.parse(remoteVersionString.split('+').first);
       final localVersion = Version.parse(localVersionString.split('+').first);
-      final remoteBuildNumber = int.tryParse(remoteVersionString.split('+').last) ?? 0;
+      final remoteBuildNumber =
-      final localBuildNumber = int.tryParse(localVersionString.split('+').last) ?? 0;
+          int.tryParse(remoteVersionString.split('+').last) ?? 0;
-      logging.info("[Update] Local: $localVersionString, Remote: $remoteVersionString");
+      final localBuildNumber =
-      if ((remoteVersion > localVersion || remoteBuildNumber > localBuildNumber) && mounted) {
+          int.tryParse(localVersionString.split('+').last) ?? 0;
+      logging.info(
+          "[Update] Local: $localVersionString, Remote: $remoteVersionString");
+      if ((remoteVersion > localVersion ||
+              remoteBuildNumber > localBuildNumber) &&
+          mounted) {
         final config = context.read<ConfigProvider>();
-        config.setUpdate(remoteVersionString, resp.data?['body'] ?? 'No changelog');
+        config.setUpdate(
+            remoteVersionString, resp.data?['body'] ?? 'No changelog');
         logging.info("[Update] Update available: $remoteVersionString");
       }
     } catch (e) {
@@ -298,6 +308,10 @@ class _AppSplashScreenState extends State<_AppSplashScreen> with TrayListener {
       notify.listen();
       await notify.registerPushNotifications();
       if (!mounted) return;
+      final kp = context.read<KeyPairProvider>();
+      await kp.reloadActive();
+      kp.listen();
+      if (!mounted) return;
       final sticker = context.read<SnStickerProvider>();
       await sticker.listSticker();
       logging.info('[Bootstrap] Everything initialized!');
@@ -355,7 +369,9 @@ class _AppSplashScreenState extends State<_AppSplashScreen> with TrayListener {
   Future<void> _trayInitialization() async {
     if (kIsWeb || Platform.isAndroid || Platform.isIOS) return;
 
-    final icon = Platform.isWindows ? 'assets/icon/tray-icon.ico' : 'assets/icon/tray-icon.png';
+    final icon = Platform.isWindows
+        ? 'assets/icon/tray-icon.ico'
+        : 'assets/icon/tray-icon.png';
     final appVersion = await PackageInfo.fromPlatform();
 
     trayManager.addListener(this);

lib/providers/keypair.dart

@@ -0,0 +1,237 @@
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:drift/drift.dart';
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:surface/database/database.dart';
+import 'package:surface/logger.dart';
+import 'package:surface/providers/database.dart';
+import 'package:surface/providers/userinfo.dart';
+import 'package:surface/providers/websocket.dart';
+import 'package:surface/types/keypair.dart';
+import 'package:fast_rsa/fast_rsa.dart';
+import 'package:surface/types/websocket.dart';
+import 'package:uuid/uuid.dart';
+
+// Currently the keypair only provide RSA encryption
+// Supported by the `fast_rsa` package
+class KeyPairProvider {
+  late final DatabaseProvider _dt;
+  late final UserProvider _ua;
+  late final WebSocketProvider _ws;
+
+  SnKeyPair? activeKp;
+
+  KeyPairProvider(BuildContext context) {
+    _dt = context.read<DatabaseProvider>();
+    _ua = context.read<UserProvider>();
+    _ws = context.read<WebSocketProvider>();
+  }
+
+  void listen() {
+    _ws.pk.stream.listen((event) {
+      switch (event.method) {
+        case 'kex.ack':
+          ackKeyExchange(event);
+          break;
+        case 'key.ask':
+          replyAskKeyExchange(event);
+          break;
+      }
+    });
+  }
+
+  Future<String> decryptText(String text, String kpId) async {
+    final kp = await (_dt.db.snLocalKeyPair.select()
+          ..where((e) => e.id.equals(kpId)))
+        .getSingleOrNull();
+    if (kp == null) throw Exception('Key pair not found');
+    return await RSA.decryptPKCS1v15(text, kp.privateKey!);
+  }
+
+  Future<String> encryptText(String text) async {
+    if (activeKp == null) throw Exception('No active key pair');
+    return await RSA.encryptPKCS1v15(text, activeKp!.publicKey);
+  }
+
+  final Map<String, Completer<SnKeyPair>> _requests = {};
+
+  Future<SnKeyPair> askKeyExchange(int kpOwner, String kpId) async {
+    if (_requests.containsKey(kpId)) return await _requests[kpId]!.future;
+
+    final completer = Completer<SnKeyPair>();
+    _requests[kpId] = completer;
+
+    _ws.conn?.sink.add(
+      jsonEncode(WebSocketPackage(
+        method: 'key.ask',
+        endpoint: 'id',
+        payload: {
+          'keypair_id': kpId,
+          'user_id': kpOwner,
+        },
+      )),
+    );
+
+    return Future.any([
+      _requests[kpId]!.future,
+      Future.delayed(const Duration(seconds: 60), () {
+        _requests.remove(kpId);
+        throw TimeoutException("Key exchange timed out");
+      }),
+    ]);
+  }
+
+  Future<void> ackKeyExchange(WebSocketPackage pkt) async {
+    if (pkt.payload == null) return;
+    final kpMeta = SnKeyPair(
+      id: pkt.payload!['keypair_id'] as String,
+      accountId: pkt.payload!['user_id'] as int,
+      publicKey: pkt.payload!['public_key'] as String,
+      privateKey: pkt.payload?['private_key'] as String?,
+    );
+
+    if (_requests.containsKey(kpMeta.id)) {
+      _requests[kpMeta.id]!.complete(kpMeta);
+      _requests.remove(kpMeta.id);
+    }
+
+    // Save the keypair to the local database
+    await _dt.db.snLocalKeyPair.insertOne(
+      SnLocalKeyPairCompanion.insert(
+        id: kpMeta.id,
+        accountId: kpMeta.accountId,
+        publicKey: kpMeta.publicKey,
+        privateKey: Value(kpMeta.privateKey),
+      ),
+      onConflict: DoUpdate(
+        (_) => SnLocalKeyPairCompanion.custom(
+          publicKey: Constant(kpMeta.publicKey),
+          privateKey: Constant(kpMeta.privateKey),
+        ),
+      ),
+    );
+  }
+
+  Future<void> replyAskKeyExchange(WebSocketPackage pkt) async {
+    final kpId = pkt.payload!['keypair_id'] as String;
+    final userId = pkt.payload!['user_id'] as int;
+    final clientId = pkt.payload!['client_id'] as String;
+
+    final localKp = await (_dt.db.snLocalKeyPair.select()
+          ..where((e) => e.id.equals(kpId))
+          ..limit(1))
+        .getSingleOrNull();
+    if (localKp == null) return;
+
+    logging.info(
+      '[Kex] Reply to key exchange request of $kpId from user $userId',
+    );
+
+    // We do not give the private key to the client
+    _ws.conn?.sink.add(jsonEncode(
+      WebSocketPackage(
+        method: 'kex.ack',
+        endpoint: 'id',
+        payload: {
+          'keypair_id': localKp.id,
+          'user_id': localKp.accountId,
+          'public_key': localKp.publicKey,
+          'client_id': clientId,
+        },
+      ).toJson(),
+    ));
+  }
+
+  Future<SnKeyPair?> reloadActive({bool autoEnroll = true}) async {
+    final kp = await (_dt.db.snLocalKeyPair.select()
+          ..where((e) => e.accountId.equals(_ua.user!.id))
+          ..where((e) => e.privateKey.isNotNull())
+          ..where((e) => e.isActive.equals(true))
+          ..limit(1))
+        .getSingleOrNull();
+
+    if (kp != null) {
+      activeKp = SnKeyPair(
+        id: kp.id,
+        accountId: kp.accountId,
+        publicKey: kp.publicKey,
+        privateKey: kp.privateKey,
+      );
+    }
+
+    if (kp == null && autoEnroll) {
+      return await enrollNew();
+    }
+
+    return activeKp;
+  }
+
+  Future<List<SnKeyPair>> listKeyPair() async {
+    final kps = await (_dt.db.snLocalKeyPair.select()).get();
+    return kps
+        .map((e) => SnKeyPair(
+              id: e.id,
+              accountId: e.accountId,
+              publicKey: e.publicKey,
+              privateKey: e.privateKey,
+              isActive: e.isActive,
+            ))
+        .toList();
+  }
+
+  Future<void> activeKeyPair(String kpId) async {
+    final kp = await (_dt.db.snLocalKeyPair.select()
+          ..where((e) => e.id.equals(kpId))
+          ..where((e) => e.privateKey.isNotNull())
+          ..limit(1))
+        .getSingleOrNull();
+    if (kp == null) return;
+
+    await _dt.db.transaction(() async {
+      await (_dt.db.update(_dt.db.snLocalKeyPair)
+            ..where((e) => e.isActive.equals(true)))
+          .write(SnLocalKeyPairCompanion(isActive: Value(false)));
+
+      await (_dt.db.update(_dt.db.snLocalKeyPair)
+            ..where((e) => e.id.equals(kp.id)))
+          .write(SnLocalKeyPairCompanion(isActive: Value(true)));
+    });
+  }
+
+  Future<SnKeyPair> enrollNew() async {
+    if (!_ua.isAuthorized) throw Exception('Unauthorized');
+
+    final id = const Uuid().v4();
+    final kp = await RSA.generate(2048);
+    final kpMeta = SnKeyPair(
+      id: id,
+      accountId: _ua.user!.id,
+      publicKey: kp.publicKey,
+      privateKey: kp.privateKey,
+    );
+
+    // Save the keypair to the local database
+    // If there is already one with private key, it will be overwritten
+    await _dt.db.transaction(() async {
+      await (_dt.db.update(_dt.db.snLocalKeyPair)
+            ..where((e) => e.isActive.equals(true)))
+          .write(SnLocalKeyPairCompanion(isActive: Value(false)));
+
+      await _dt.db.snLocalKeyPair.insertOne(
+        SnLocalKeyPairCompanion.insert(
+          id: kpMeta.id,
+          accountId: kpMeta.accountId,
+          publicKey: kpMeta.publicKey,
+          privateKey: Value(kpMeta.privateKey),
+          isActive: Value(true),
+        ),
+      );
+    });
+
+    await reloadActive(autoEnroll: false);
+
+    return kpMeta;
+  }
+}

lib/providers/websocket.dart

@@ -117,7 +117,8 @@ class WebSocketProvider extends ChangeNotifier {
       (event) {
         final packet = WebSocketPackage.fromJson(jsonDecode(event));
         logging.debug(
-            '[Websocket] Incoming message: ${packet.method} ${packet.message}');
+          '[Websocket] Incoming message: ${packet.method} ${packet.message}',
+        );
         pk.sink.add(packet);
       },
       onDone: () {

lib/router.dart

@@ -6,6 +6,7 @@ import 'package:surface/screens/account.dart';
 import 'package:surface/screens/account/account_settings.dart';
 import 'package:surface/screens/account/badges.dart';
 import 'package:surface/screens/account/factor_settings.dart';
+import 'package:surface/screens/account/keypairs.dart';
 import 'package:surface/screens/account/profile_page.dart';
 import 'package:surface/screens/account/profile_edit.dart';
 import 'package:surface/screens/account/publishers/publisher_edit.dart';
@@ -43,8 +44,8 @@ import 'package:surface/types/post.dart';
 import 'package:surface/widgets/about.dart';
 import 'package:surface/widgets/navigation/app_scaffold.dart';
 
-Widget _fadeThroughTransition(
+Widget _fadeThroughTransition(BuildContext context, Animation<double> animation,
-    BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child) {
+    Animation<double> secondaryAnimation, Widget child) {
   return FadeThroughTransition(
     animation: animation,
     secondaryAnimation: secondaryAnimation,
@@ -86,13 +87,15 @@ final _appRoutes = [
         name: 'postSearch',
         builder: (context, state) => PostSearchScreen(
           initialTags: state.uri.queryParameters['tags']?.split(','),
-          initialCategories: state.uri.queryParameters['categories']?.split(','),
+          initialCategories:
+              state.uri.queryParameters['categories']?.split(','),
         ),
       ),
       GoRoute(
         path: '/publishers/:name',
         name: 'postPublisher',
-        builder: (context, state) => PostPublisherScreen(name: state.pathParameters['name']!),
+        builder: (context, state) =>
+            PostPublisherScreen(name: state.pathParameters['name']!),
       ),
       GoRoute(
         path: '/:slug',
@@ -119,6 +122,11 @@ final _appRoutes = [
         name: 'accountWallet',
         builder: (context, state) => const WalletScreen(),
       ),
+      GoRoute(
+        path: '/keypairs',
+        name: 'accountKeyPairs',
+        builder: (context, state) => const KeyPairScreen(),
+      ),
       GoRoute(
         path: '/settings',
         name: 'accountSettings',
@@ -222,7 +230,8 @@ final _appRoutes = [
       GoRoute(
         path: '/:alias',
         name: 'realmDetail',
-        builder: (context, state) => RealmDetailScreen(alias: state.pathParameters['alias']!),
+        builder: (context, state) =>
+            RealmDetailScreen(alias: state.pathParameters['alias']!),
       ),
     ],
   ),

lib/screens/account.dart

@@ -45,7 +45,8 @@ class AccountScreen extends StatelessWidget {
             ? Stack(
                 fit: StackFit.expand,
                 children: [
-                  AutoResizeUniversalImage(sn.getAttachmentUrl(ua.user!.banner), fit: BoxFit.cover),
+                  AutoResizeUniversalImage(sn.getAttachmentUrl(ua.user!.banner),
+                      fit: BoxFit.cover),
                   Positioned(
                     top: 0,
                     left: 0,
@@ -79,7 +80,9 @@ class AccountScreen extends StatelessWidget {
         ],
       ),
       body: SingleChildScrollView(
-        child: ua.isAuthorized ? _AuthorizedAccountScreen() : _UnauthorizedAccountScreen(),
+        child: ua.isAuthorized
+            ? _AuthorizedAccountScreen()
+            : _UnauthorizedAccountScreen(),
       ),
     );
   }
@@ -115,9 +118,11 @@ class _AuthorizedAccountScreen extends StatelessWidget {
                     crossAxisAlignment: CrossAxisAlignment.baseline,
                     textBaseline: TextBaseline.alphabetic,
                     children: [
-                      Text(ua.user!.nick).textStyle(Theme.of(context).textTheme.titleLarge!),
+                      Text(ua.user!.nick)
+                          .textStyle(Theme.of(context).textTheme.titleLarge!),
                       const Gap(4),
-                      Text('@${ua.user!.name}').textStyle(Theme.of(context).textTheme.bodySmall!),
+                      Text('@${ua.user!.name}')
+                          .textStyle(Theme.of(context).textTheme.bodySmall!),
                     ],
                   ),
                   Text(
@@ -183,6 +188,16 @@ class _AuthorizedAccountScreen extends StatelessWidget {
             GoRouter.of(context).pushNamed('accountBadges');
           },
         ),
+        ListTile(
+          title: Text('accountKeyPairs').tr(),
+          subtitle: Text('accountKeyPairsDescription').tr(),
+          contentPadding: const EdgeInsets.symmetric(horizontal: 24),
+          leading: const Icon(Symbols.key),
+          trailing: const Icon(Symbols.chevron_right),
+          onTap: () {
+            GoRouter.of(context).pushNamed('accountKeyPairs');
+          },
+        ),
         ListTile(
           title: Text('accountSettings').tr(),
           subtitle: Text('accountSettingsSubtitle').tr(),
@@ -236,7 +251,9 @@ class _UnauthorizedAccountScreen extends StatelessWidget {
                   child: Icon(Symbols.waving_hand, size: 28),
                 ),
                 const Gap(8),
-                Text('accountIntroTitle').tr().textStyle(Theme.of(context).textTheme.titleLarge!),
+                Text('accountIntroTitle')
+                    .tr()
+                    .textStyle(Theme.of(context).textTheme.titleLarge!),
                 Text('accountIntroSubtitle').tr(),
               ],
             ).padding(all: 20),

lib/screens/account/keypairs.dart

@@ -0,0 +1,106 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:google_fonts/google_fonts.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:provider/provider.dart';
+import 'package:surface/providers/keypair.dart';
+import 'package:surface/types/keypair.dart';
+import 'package:surface/widgets/loading_indicator.dart';
+import 'package:surface/widgets/navigation/app_scaffold.dart';
+
+class KeyPairScreen extends StatefulWidget {
+  const KeyPairScreen({super.key});
+
+  @override
+  State<KeyPairScreen> createState() => _KeyPairScreenState();
+}
+
+class _KeyPairScreenState extends State<KeyPairScreen> {
+  bool _isBusy = false;
+  List<SnKeyPair>? _keyPairs;
+
+  Future<void> _loadKeyPairs() async {
+    setState(() => _isBusy = true);
+    final kps = await context.read<KeyPairProvider>().listKeyPair();
+    setState(() {
+      _keyPairs = kps;
+      _isBusy = false;
+    });
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _loadKeyPairs();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AppScaffold(
+      appBar: AppBar(
+        title: Text('screenKeyPairs').tr(),
+      ),
+      body: Column(
+        children: [
+          LoadingIndicator(isActive: _isBusy),
+          ListTile(
+            leading: const Icon(Symbols.add),
+            title: Text('enrollNewKeyPair').tr(),
+            subtitle: Text('enrollNewKeyPairDescription').tr(),
+            onTap: () async {
+              await context.read<KeyPairProvider>().enrollNew();
+              _loadKeyPairs();
+            },
+          ),
+          const Divider(height: 1),
+          if (_keyPairs != null)
+            Expanded(
+              child: MediaQuery.removePadding(
+                context: context,
+                removeTop: true,
+                child: RefreshIndicator(
+                  onRefresh: _loadKeyPairs,
+                  child: ListView.builder(
+                    itemCount: _keyPairs!.length,
+                    itemBuilder: (context, index) {
+                      final kp = _keyPairs![index];
+                      return ListTile(
+                        title: Text(kp.id.toUpperCase()),
+                        subtitle: Row(
+                          spacing: 8,
+                          children: [
+                            if (kp.privateKey != null)
+                              Text(
+                                'keyPairHasPrivateKey'.tr(),
+                              ),
+                            if (kp.privateKey != null) Text('·'),
+                            Flexible(
+                              flex: 1,
+                              child: Text(
+                                'UID #${kp.accountId.toString().padLeft(8, '0')}',
+                                style: GoogleFonts.robotoMono(),
+                              ),
+                            ),
+                          ],
+                        ),
+                        trailing: IconButton(
+                          icon: const Icon(Symbols.check),
+                          onPressed: kp.isActive == true
+                              ? null
+                              : () async {
+                                  final k = context.read<KeyPairProvider>();
+                                  await k.activeKeyPair(kp.id);
+                                  _loadKeyPairs();
+                                },
+                        ),
+                      );
+                    },
+                  ),
+                ),
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+}

lib/screens/account/profile_edit.dart

@@ -68,38 +68,35 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
     _banner = prof.banner;
     _links = prof.profile!.links.entries.map((ele) => (ele.key, ele.value)).toList();
     _birthday = prof.profile!.birthday?.toLocal();
-    if(_birthday != null) {
+    if (_birthday != null) {
-      _birthdayController.text = DateFormat(_kDateFormat).format(
+      _birthdayController.text = DateFormat(_kDateFormat).format(prof.profile!.birthday!.toLocal());
-      prof.profile!.birthday!.toLocal(),
-    );
     }
   }
 
   void _selectBirthday() async {
     await showCupertinoModalPopup<DateTime?>(
       context: context,
-      builder: (BuildContext context) => Container(
+      builder:
-        height: 216,
+          (BuildContext context) => Container(
-        padding: const EdgeInsets.only(top: 6.0),
+            height: 216,
-        margin: EdgeInsets.only(
+            padding: const EdgeInsets.only(top: 6.0),
-          bottom: MediaQuery.of(context).viewInsets.bottom,
+            margin: EdgeInsets.only(bottom: MediaQuery.of(context).viewInsets.bottom),
-        ),
+            color: Theme.of(context).colorScheme.surface,
-        color: Theme.of(context).colorScheme.surface,
+            child: SafeArea(
-        child: SafeArea(
+              top: false,
-          top: false,
+              child: CupertinoDatePicker(
-          child: CupertinoDatePicker(
+                initialDateTime: _birthday?.toLocal(),
-            initialDateTime: _birthday?.toLocal(),
+                mode: CupertinoDatePickerMode.date,
-            mode: CupertinoDatePickerMode.date,
+                use24hFormat: true,
-            use24hFormat: true,
+                onDateTimeChanged: (DateTime newDate) {
-            onDateTimeChanged: (DateTime newDate) {
+                  setState(() {
-              setState(() {
+                    _birthday = newDate;
-                _birthday = newDate;
+                    _birthdayController.text = DateFormat(_kDateFormat).format(_birthday!);
-                _birthdayController.text = DateFormat(_kDateFormat).format(_birthday!);
+                  });
-              });
+                },
-            },
+              ),
+            ),
           ),
-        ),
-      ),
     );
   }
 
@@ -108,32 +105,42 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
     if (image == null) return;
     if (!mounted) return;
 
-    final ImageProvider imageProvider = kIsWeb ? NetworkImage(image.path) : FileImage(File(image.path));
+    final skipCrop = image.path.endsWith('.gif');
-    final aspectRatios =
-        place == 'banner' ? [CropAspectRatio(width: 16, height: 7)] : [CropAspectRatio(width: 1, height: 1)];
-    final result = (!kIsWeb && (Platform.isIOS || Platform.isMacOS))
-        ? await showCupertinoImageCropper(
-            // ignore: use_build_context_synchronously
-            context,
-            allowedAspectRatios: aspectRatios,
-            imageProvider: imageProvider,
-          )
-        : await showMaterialImageCropper(
-            // ignore: use_build_context_synchronously
-            context,
-            allowedAspectRatios: aspectRatios,
-            imageProvider: imageProvider,
-          );
 
-    if (result == null) return;
+    Uint8List? rawBytes;
+    if (!skipCrop) {
+      final ImageProvider imageProvider = kIsWeb ? NetworkImage(image.path) : FileImage(File(image.path));
+      final aspectRatios =
+          place == 'banner' ? [CropAspectRatio(width: 16, height: 7)] : [CropAspectRatio(width: 1, height: 1)];
+      final result =
+          (!kIsWeb && (Platform.isIOS || Platform.isMacOS))
+              ? await showCupertinoImageCropper(
+                // ignore: use_build_context_synchronously
+                context,
+                allowedAspectRatios: aspectRatios,
+                imageProvider: imageProvider,
+              )
+              : await showMaterialImageCropper(
+                // ignore: use_build_context_synchronously
+                context,
+                allowedAspectRatios: aspectRatios,
+                imageProvider: imageProvider,
+              );
+
+      if (result == null) return;
+
+      if (!mounted) return;
+      setState(() => _isBusy = true);
+      rawBytes = (await result.uiImage.toByteData(format: ImageByteFormat.png))!.buffer.asUint8List();
+    } else {
+      if (!mounted) return;
+      setState(() => _isBusy = true);
+      rawBytes = await image.readAsBytes();
+    }
 
     if (!mounted) return;
     final attach = context.read<SnAttachmentProvider>();
 
-    setState(() => _isBusy = true);
-
-    final rawBytes = (await result.uiImage.toByteData(format: ImageByteFormat.png))!.buffer.asUint8List();
-
     try {
       final attachment = await attach.directUploadOne(
         rawBytes,
@@ -145,10 +152,7 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
 
       if (!mounted) return;
       final sn = context.read<SnNetworkProvider>();
-      await sn.client.put(
+      await sn.client.put('/cgi/id/users/me/$place', data: {'attachment': attachment.rid});
-        '/cgi/id/users/me/$place',
-        data: {'attachment': attachment.rid},
-      );
 
       if (!mounted) return;
       final ua = context.read<UserProvider>();
@@ -184,7 +188,7 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
           'location': _locationController.value.text,
           'birthday': _birthday?.toUtc().toIso8601String(),
           'links': {
-            for (final link in _links!.where((ele) => ele.$1.isNotEmpty && ele.$2.isNotEmpty)) link.$1: link.$2
+            for (final link in _links!.where((ele) => ele.$1.isNotEmpty && ele.$2.isNotEmpty)) link.$1: link.$2,
           },
         },
       );
@@ -231,10 +235,7 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
     final sn = context.read<SnNetworkProvider>();
 
     return AppScaffold(
-      appBar: AppBar(
+      appBar: AppBar(leading: const PageBackButton(), title: Text('screenAccountProfileEdit').tr()),
-        leading: const PageBackButton(),
-        title: Text('screenAccountProfileEdit').tr(),
-      ),
       body: SingleChildScrollView(
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
@@ -253,12 +254,10 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
                         aspectRatio: 16 / 9,
                         child: Container(
                           color: Theme.of(context).colorScheme.surfaceContainerHigh,
-                          child: _banner != null
+                          child:
-                              ? AutoResizeUniversalImage(
+                              _banner != null
-                                  sn.getAttachmentUrl(_banner!),
+                                  ? AutoResizeUniversalImage(sn.getAttachmentUrl(_banner!), fit: BoxFit.cover)
-                                  fit: BoxFit.cover,
+                                  : const SizedBox.shrink(),
-                                )
-                              : const SizedBox.shrink(),
                         ),
                       ),
                     ),
@@ -299,10 +298,7 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
                 ),
                 TextField(
                   controller: _nicknameController,
-                  decoration: InputDecoration(
+                  decoration: InputDecoration(border: const UnderlineInputBorder(), labelText: 'fieldNickname'.tr()),
-                    border: const UnderlineInputBorder(),
-                    labelText: 'fieldNickname'.tr(),
-                  ),
                   onTapOutside: (_) => FocusManager.instance.primaryFocus?.unfocus(),
                 ),
                 Row(
@@ -364,10 +360,7 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
                   keyboardType: TextInputType.multiline,
                   maxLines: null,
                   minLines: 3,
-                  decoration: InputDecoration(
+                  decoration: InputDecoration(border: const UnderlineInputBorder(), labelText: 'fieldDescription'.tr()),
-                    border: const UnderlineInputBorder(),
-                    labelText: 'fieldDescription'.tr(),
-                  ),
                   onTapOutside: (_) => FocusManager.instance.primaryFocus?.unfocus(),
                 ),
                 Row(
@@ -384,42 +377,40 @@ class _ProfileEditScreenState extends State<ProfileEditScreen> {
                       ),
                     ),
                     const Gap(4),
-                    StyledWidget(IconButton(
+                    StyledWidget(
-                      icon: const Icon(Symbols.calendar_month),
+                      IconButton(
-                      visualDensity: VisualDensity(horizontal: -4, vertical: -4),
+                        icon: const Icon(Symbols.calendar_month),
-                      padding: EdgeInsets.zero,
+                        visualDensity: VisualDensity(horizontal: -4, vertical: -4),
-                      constraints: const BoxConstraints(),
+                        padding: EdgeInsets.zero,
-                      onPressed: () async {
+                        constraints: const BoxConstraints(),
-                        _timezoneController.text = await FlutterTimezone.getLocalTimezone();
+                        onPressed: () async {
-                      },
+                          _timezoneController.text = await FlutterTimezone.getLocalTimezone();
-                    )).padding(top: 6),
+                        },
+                      ),
+                    ).padding(top: 6),
                     const Gap(4),
-                    StyledWidget(IconButton(
+                    StyledWidget(
-                      icon: const Icon(Symbols.clear),
+                      IconButton(
-                      visualDensity: VisualDensity(horizontal: -4, vertical: -4),
+                        icon: const Icon(Symbols.clear),
-                      padding: EdgeInsets.zero,
+                        visualDensity: VisualDensity(horizontal: -4, vertical: -4),
-                      constraints: const BoxConstraints(),
+                        padding: EdgeInsets.zero,
-                      onPressed: () {
+                        constraints: const BoxConstraints(),
-                        _timezoneController.clear();
+                        onPressed: () {
-                      },
+                          _timezoneController.clear();
-                    )).padding(top: 6),
+                        },
+                      ),
+                    ).padding(top: 6),
                   ],
                 ),
                 TextField(
                   controller: _locationController,
-                  decoration: InputDecoration(
+                  decoration: InputDecoration(border: const UnderlineInputBorder(), labelText: 'fieldLocation'.tr()),
-                    border: const UnderlineInputBorder(),
-                    labelText: 'fieldLocation'.tr(),
-                  ),
                   onTapOutside: (_) => FocusManager.instance.primaryFocus?.unfocus(),
                 ),
                 TextField(
                   controller: _birthdayController,
                   readOnly: true,
-                  decoration: InputDecoration(
+                  decoration: InputDecoration(border: const UnderlineInputBorder(), labelText: 'fieldBirthday'.tr()),
-                    border: const UnderlineInputBorder(),
-                    labelText: 'fieldBirthday'.tr(),
-                  ),
                   onTap: () => _selectBirthday(),
                 ),
                 if (_links != null)

lib/screens/account/publishers/publisher_edit.dart

@@ -68,16 +68,19 @@ class _AccountPublisherEditScreenState extends State<AccountPublisherEditScreen>
     setState(() => _isBusy = true);
 
     try {
-      await sn.client.put('/cgi/co/publishers/${widget.name}', data: {
+      await sn.client.put(
-        'avatar': _avatar,
+        '/cgi/co/publishers/${widget.name}',
-        'banner': _banner,
+        data: {
-        'nick': _nickController.text,
+          'avatar': _avatar,
-        'name': _nameController.text,
+          'banner': _banner,
-        'description': _descriptionController.text,
+          'nick': _nickController.text,
-      });
+          'name': _nameController.text,
+          'description': _descriptionController.text,
+        },
+      );
       if (mounted) Navigator.pop(context, true);
     } catch (err) {
-      if(mounted) context.showErrorDialog(err);
+      if (mounted) context.showErrorDialog(err);
     } finally {
       setState(() => _isBusy = false);
     }
@@ -108,32 +111,42 @@ class _AccountPublisherEditScreenState extends State<AccountPublisherEditScreen>
     if (image == null) return;
     if (!mounted) return;
 
-    final ImageProvider imageProvider = kIsWeb ? NetworkImage(image.path) : FileImage(File(image.path));
+    final skipCrop = image.path.endsWith('.gif');
-    final aspectRatios =
-        place == 'banner' ? [CropAspectRatio(width: 16, height: 7)] : [CropAspectRatio(width: 1, height: 1)];
-    final result = (!kIsWeb && (Platform.isIOS || Platform.isMacOS))
-        ? await showCupertinoImageCropper(
-            // ignore: use_build_context_synchronously
-            context,
-            allowedAspectRatios: aspectRatios,
-            imageProvider: imageProvider,
-          )
-        : await showMaterialImageCropper(
-            // ignore: use_build_context_synchronously
-            context,
-            allowedAspectRatios: aspectRatios,
-            imageProvider: imageProvider,
-          );
 
-    if (result == null) return;
+    Uint8List? rawBytes;
+    if (!skipCrop) {
+      final ImageProvider imageProvider = kIsWeb ? NetworkImage(image.path) : FileImage(File(image.path));
+      final aspectRatios =
+          place == 'banner' ? [CropAspectRatio(width: 16, height: 7)] : [CropAspectRatio(width: 1, height: 1)];
+      final result =
+          (!kIsWeb && (Platform.isIOS || Platform.isMacOS))
+              ? await showCupertinoImageCropper(
+                // ignore: use_build_context_synchronously
+                context,
+                allowedAspectRatios: aspectRatios,
+                imageProvider: imageProvider,
+              )
+              : await showMaterialImageCropper(
+                // ignore: use_build_context_synchronously
+                context,
+                allowedAspectRatios: aspectRatios,
+                imageProvider: imageProvider,
+              );
+
+      if (result == null) return;
+
+      if (!mounted) return;
+      setState(() => _isBusy = true);
+      rawBytes = (await result.uiImage.toByteData(format: ImageByteFormat.png))!.buffer.asUint8List();
+    } else {
+      if (!mounted) return;
+      setState(() => _isBusy = true);
+      rawBytes = await image.readAsBytes();
+    }
 
     if (!mounted) return;
     final attach = context.read<SnAttachmentProvider>();
 
-    setState(() => _isBusy = true);
-
-    final rawBytes = (await result.uiImage.toByteData(format: ImageByteFormat.png))!.buffer.asUint8List();
-
     try {
       final attachment = await attach.directUploadOne(
         rawBytes,
@@ -178,10 +191,7 @@ class _AccountPublisherEditScreenState extends State<AccountPublisherEditScreen>
     final sn = context.read<SnNetworkProvider>();
 
     return AppScaffold(
-      appBar: AppBar(
+      appBar: AppBar(leading: PageBackButton(), title: Text('screenAccountPublisherEdit').tr()),
-        leading: PageBackButton(),
-        title: Text('screenAccountPublisherEdit').tr(),
-      ),
       body: SingleChildScrollView(
         child: Column(
           children: [
@@ -199,12 +209,10 @@ class _AccountPublisherEditScreenState extends State<AccountPublisherEditScreen>
                         aspectRatio: 16 / 9,
                         child: Container(
                           color: Theme.of(context).colorScheme.surfaceContainerHigh,
-                          child: _banner != null
+                          child:
-                              ? AutoResizeUniversalImage(
+                              _banner != null
-                                  sn.getAttachmentUrl(_banner!),
+                                  ? AutoResizeUniversalImage(sn.getAttachmentUrl(_banner!), fit: BoxFit.cover)
-                                  fit: BoxFit.cover,
+                                  : const SizedBox.shrink(),
-                                )
-                              : const SizedBox.shrink(),
                         ),
                       ),
                     ),
@@ -242,9 +250,7 @@ class _AccountPublisherEditScreenState extends State<AccountPublisherEditScreen>
             const Gap(4),
             TextField(
               controller: _nickController,
-              decoration: InputDecoration(
+              decoration: InputDecoration(labelText: 'fieldNickname'.tr()),
-                labelText: 'fieldNickname'.tr(),
-              ),
               onTapOutside: (_) => FocusManager.instance.primaryFocus?.unfocus(),
             ),
             const Gap(4),
@@ -252,9 +258,7 @@ class _AccountPublisherEditScreenState extends State<AccountPublisherEditScreen>
               controller: _descriptionController,
               maxLines: null,
               minLines: 3,
-              decoration: InputDecoration(
+              decoration: InputDecoration(labelText: 'fieldDescription'.tr()),
-                labelText: 'fieldDescription'.tr(),
-              ),
               onTapOutside: (_) => FocusManager.instance.primaryFocus?.unfocus(),
             ),
             const Gap(12),
@@ -275,7 +279,7 @@ class _AccountPublisherEditScreenState extends State<AccountPublisherEditScreen>
                   icon: const Icon(Symbols.save),
                 ),
               ],
-            )
+            ),
           ],
         ).padding(horizontal: 24, vertical: 12),
       ),

lib/screens/notification.dart

@@ -58,18 +58,12 @@ class _NotificationScreenState extends State<NotificationScreen> {
     try {
       final sn = context.read<SnNetworkProvider>();
       final nty = context.read<NotificationProvider>();
-      final resp =
+      final resp = await sn.client.get(
-          await sn.client.get('/cgi/id/notifications', queryParameters: {
+        '/cgi/id/notifications',
-        'take': 10,
+        queryParameters: {'take': 10, 'offset': _notifications.length},
-        'offset': _notifications.length,
-      });
-      _totalCount = resp.data['count'];
-      _notifications.addAll(
-        resp.data['data']
-                ?.map((e) => SnNotification.fromJson(e))
-                .cast<SnNotification>() ??
-            [],
       );
+      _totalCount = resp.data['count'];
+      _notifications.addAll(resp.data['data']?.map((e) => SnNotification.fromJson(e)).cast<SnNotification>() ?? []);
       nty.updateTray();
     } catch (err) {
       if (!mounted) return;
@@ -104,9 +98,7 @@ class _NotificationScreenState extends State<NotificationScreen> {
       nty.clear();
 
       if (!mounted) return;
-      context.showSnackbar(
+      context.showSnackbar('notificationMarkAllReadPrompt'.plural(resp.data['count']));
-        'notificationMarkAllReadPrompt'.plural(resp.data['count']),
-      );
     } catch (err) {
       if (!mounted) return;
       context.showErrorDialog(err);
@@ -130,9 +122,7 @@ class _NotificationScreenState extends State<NotificationScreen> {
       _fetchNotifications();
 
       if (!mounted) return;
-      context.showSnackbar(
+      context.showSnackbar('notificationMarkOneReadPrompt'.tr(args: ['#${notification.id}']));
-        'notificationMarkOneReadPrompt'.tr(args: ['#${notification.id}']),
-      );
     } catch (err) {
       if (!mounted) return;
       context.showErrorDialog(err);
@@ -153,13 +143,8 @@ class _NotificationScreenState extends State<NotificationScreen> {
 
     if (!ua.isAuthorized) {
       return AppScaffold(
-        appBar: AppBar(
+        appBar: AppBar(leading: AutoAppBarLeading(), title: Text('screenNotification').tr()),
-          leading: AutoAppBarLeading(),
+        body: Center(child: UnauthorizedHint()),
-          title: Text('screenNotification').tr(),
-        ),
-        body: Center(
-          child: UnauthorizedHint(),
-        ),
       );
     }
 
@@ -168,10 +153,7 @@ class _NotificationScreenState extends State<NotificationScreen> {
         leading: AutoAppBarLeading(),
         title: Text('screenNotification').tr(),
         actions: [
-          IconButton(
+          IconButton(icon: const Icon(Symbols.checklist), onPressed: _isSubmitting ? null : _markAllAsRead),
-            icon: const Icon(Symbols.checklist),
-            onPressed: _isSubmitting ? null : _markAllAsRead,
-          ),
           const Gap(8),
         ],
       ),
@@ -185,17 +167,13 @@ class _NotificationScreenState extends State<NotificationScreen> {
                 return _fetchNotifications();
               },
               child: InfiniteList(
-                padding: EdgeInsets.only(
+                padding: EdgeInsets.only(top: 16, bottom: math.max(MediaQuery.of(context).padding.bottom, 16)),
-                  top: 16,
-                  bottom: math.max(MediaQuery.of(context).padding.bottom, 16),
-                ),
                 itemCount: _notifications.length,
                 onFetchData: () {
                   _fetchNotifications();
                 },
                 isLoading: _isBusy,
-                hasReachedMax: _totalCount != null &&
+                hasReachedMax: _totalCount != null && _notifications.length >= _totalCount!,
-                    _notifications.length >= _totalCount!,
                 itemBuilder: (context, idx) {
                   final nty = _notifications[idx];
                   return Row(
@@ -208,45 +186,26 @@ class _NotificationScreenState extends State<NotificationScreen> {
                           crossAxisAlignment: CrossAxisAlignment.start,
                           children: [
                             if (nty.readAt == null)
-                              StyledWidget(Badge(
+                              StyledWidget(Badge(label: Text('notificationUnread').tr())).padding(bottom: 4),
-                                label: Text('notificationUnread').tr(),
+                            Text(nty.title, style: Theme.of(context).textTheme.titleMedium),
-                              )).padding(bottom: 4),
-                            Text(
-                              nty.title,
-                              style: Theme.of(context).textTheme.titleMedium,
-                            ),
                             if (nty.subtitle != null)
-                              Text(
+                              Text(nty.subtitle!, style: Theme.of(context).textTheme.titleSmall),
-                                nty.subtitle!,
-                                style: Theme.of(context).textTheme.titleSmall,
-                              ),
                             if (nty.subtitle != null) const Gap(4),
-                            SelectionArea(
+                            SelectionArea(child: MarkdownTextContent(content: nty.body, isAutoWarp: true)),
-                              child: MarkdownTextContent(
-                                content: nty.body,
-                                isAutoWarp: true,
-                              ),
-                            ),
                             if ([
                                   'interactive.reply',
                                   'interactive.feedback',
-                                  'interactive.subscription'
+                                  'interactive.subscription',
                                 ].contains(nty.topic) &&
                                 nty.metadata['related_post'] != null)
                               GestureDetector(
                                 child: Container(
                                   decoration: BoxDecoration(
-                                    borderRadius: const BorderRadius.all(
+                                    borderRadius: const BorderRadius.all(Radius.circular(8)),
-                                        Radius.circular(8)),
+                                    border: Border.all(color: Theme.of(context).dividerColor, width: 1),
-                                    border: Border.all(
-                                      color: Theme.of(context).dividerColor,
-                                      width: 1,
-                                    ),
                                   ),
                                   child: PostItem(
-                                    data: SnPost.fromJson(
+                                    data: SnPost.fromJson(nty.metadata['related_post']!),
-                                      nty.metadata['related_post']!,
-                                    ),
                                     showComments: false,
                                     showReactions: false,
                                     showMenu: false,
@@ -255,29 +214,18 @@ class _NotificationScreenState extends State<NotificationScreen> {
                                 onTap: () {
                                   GoRouter.of(context).pushNamed(
                                     'postDetail',
-                                    pathParameters: {
+                                    pathParameters: {'slug': nty.metadata['related_post']!['id'].toString()},
-                                      'slug': nty
-                                          .metadata['related_post']!['id']
-                                          .toString(),
-                                    },
                                   );
                                 },
                               ).padding(top: 8),
                             const Gap(8),
                             Row(
                               children: [
-                                Text(
+                                Text(DateFormat('yy/MM/dd').format(nty.createdAt)).fontSize(12),
-                                  DateFormat('yy/MM/dd').format(nty.createdAt),
-                                ).fontSize(12),
                                 const Gap(4),
-                                Text(
+                                Text('·', style: TextStyle(fontSize: 12)),
-                                  '·',
-                                  style: TextStyle(fontSize: 12),
-                                ),
                                 const Gap(4),
-                                Text(
+                                Text(RelativeTime(context).format(nty.createdAt)).fontSize(12),
-                                  RelativeTime(context).format(nty.createdAt),
-                                ).fontSize(12),
                               ],
                             ).opacity(0.75),
                           ],
@@ -287,10 +235,8 @@ class _NotificationScreenState extends State<NotificationScreen> {
                       IconButton(
                         icon: const Icon(Symbols.check),
                         padding: EdgeInsets.all(0),
-                        visualDensity:
+                        visualDensity: const VisualDensity(horizontal: -4, vertical: -4),
-                            const VisualDensity(horizontal: -4, vertical: -4),
+                        onPressed: _isSubmitting ? null : () => _markOneAsRead(nty),
-                        onPressed:
-                            _isSubmitting ? null : () => _markOneAsRead(nty),
                       ),
                     ],
                   ).padding(horizontal: 16);

lib/types/keypair.dart

@@ -0,0 +1,18 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'keypair.freezed.dart';
+part 'keypair.g.dart';
+
+@freezed
+abstract class SnKeyPair with _$SnKeyPair {
+  const factory SnKeyPair({
+    required String id,
+    required int accountId,
+    required String publicKey,
+    bool? isActive,
+    String? privateKey,
+  }) = _SnKeyPair;
+
+  factory SnKeyPair.fromJson(Map<String, Object?> json) =>
+      _$SnKeyPairFromJson(json);
+}

lib/types/keypair.freezed.dart

@@ -0,0 +1,241 @@
+// dart format width=80
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'keypair.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+// dart format off
+T _$identity<T>(T value) => value;
+
+/// @nodoc
+mixin _$SnKeyPair {
+  String get id;
+  int get accountId;
+  String get publicKey;
+  bool? get isActive;
+  String? get privateKey;
+
+  /// Create a copy of SnKeyPair
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @pragma('vm:prefer-inline')
+  $SnKeyPairCopyWith<SnKeyPair> get copyWith =>
+      _$SnKeyPairCopyWithImpl<SnKeyPair>(this as SnKeyPair, _$identity);
+
+  /// Serializes this SnKeyPair to a JSON map.
+  Map<String, dynamic> toJson();
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is SnKeyPair &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.accountId, accountId) ||
+                other.accountId == accountId) &&
+            (identical(other.publicKey, publicKey) ||
+                other.publicKey == publicKey) &&
+            (identical(other.isActive, isActive) ||
+                other.isActive == isActive) &&
+            (identical(other.privateKey, privateKey) ||
+                other.privateKey == privateKey));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, id, accountId, publicKey, isActive, privateKey);
+
+  @override
+  String toString() {
+    return 'SnKeyPair(id: $id, accountId: $accountId, publicKey: $publicKey, isActive: $isActive, privateKey: $privateKey)';
+  }
+}
+
+/// @nodoc
+abstract mixin class $SnKeyPairCopyWith<$Res> {
+  factory $SnKeyPairCopyWith(SnKeyPair value, $Res Function(SnKeyPair) _then) =
+      _$SnKeyPairCopyWithImpl;
+  @useResult
+  $Res call(
+      {String id,
+      int accountId,
+      String publicKey,
+      bool? isActive,
+      String? privateKey});
+}
+
+/// @nodoc
+class _$SnKeyPairCopyWithImpl<$Res> implements $SnKeyPairCopyWith<$Res> {
+  _$SnKeyPairCopyWithImpl(this._self, this._then);
+
+  final SnKeyPair _self;
+  final $Res Function(SnKeyPair) _then;
+
+  /// Create a copy of SnKeyPair
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? accountId = null,
+    Object? publicKey = null,
+    Object? isActive = freezed,
+    Object? privateKey = freezed,
+  }) {
+    return _then(_self.copyWith(
+      id: null == id
+          ? _self.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      accountId: null == accountId
+          ? _self.accountId
+          : accountId // ignore: cast_nullable_to_non_nullable
+              as int,
+      publicKey: null == publicKey
+          ? _self.publicKey
+          : publicKey // ignore: cast_nullable_to_non_nullable
+              as String,
+      isActive: freezed == isActive
+          ? _self.isActive
+          : isActive // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      privateKey: freezed == privateKey
+          ? _self.privateKey
+          : privateKey // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _SnKeyPair implements SnKeyPair {
+  const _SnKeyPair(
+      {required this.id,
+      required this.accountId,
+      required this.publicKey,
+      this.isActive,
+      this.privateKey});
+  factory _SnKeyPair.fromJson(Map<String, dynamic> json) =>
+      _$SnKeyPairFromJson(json);
+
+  @override
+  final String id;
+  @override
+  final int accountId;
+  @override
+  final String publicKey;
+  @override
+  final bool? isActive;
+  @override
+  final String? privateKey;
+
+  /// Create a copy of SnKeyPair
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @pragma('vm:prefer-inline')
+  _$SnKeyPairCopyWith<_SnKeyPair> get copyWith =>
+      __$SnKeyPairCopyWithImpl<_SnKeyPair>(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$SnKeyPairToJson(
+      this,
+    );
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _SnKeyPair &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.accountId, accountId) ||
+                other.accountId == accountId) &&
+            (identical(other.publicKey, publicKey) ||
+                other.publicKey == publicKey) &&
+            (identical(other.isActive, isActive) ||
+                other.isActive == isActive) &&
+            (identical(other.privateKey, privateKey) ||
+                other.privateKey == privateKey));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, id, accountId, publicKey, isActive, privateKey);
+
+  @override
+  String toString() {
+    return 'SnKeyPair(id: $id, accountId: $accountId, publicKey: $publicKey, isActive: $isActive, privateKey: $privateKey)';
+  }
+}
+
+/// @nodoc
+abstract mixin class _$SnKeyPairCopyWith<$Res>
+    implements $SnKeyPairCopyWith<$Res> {
+  factory _$SnKeyPairCopyWith(
+          _SnKeyPair value, $Res Function(_SnKeyPair) _then) =
+      __$SnKeyPairCopyWithImpl;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      int accountId,
+      String publicKey,
+      bool? isActive,
+      String? privateKey});
+}
+
+/// @nodoc
+class __$SnKeyPairCopyWithImpl<$Res> implements _$SnKeyPairCopyWith<$Res> {
+  __$SnKeyPairCopyWithImpl(this._self, this._then);
+
+  final _SnKeyPair _self;
+  final $Res Function(_SnKeyPair) _then;
+
+  /// Create a copy of SnKeyPair
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @pragma('vm:prefer-inline')
+  $Res call({
+    Object? id = null,
+    Object? accountId = null,
+    Object? publicKey = null,
+    Object? isActive = freezed,
+    Object? privateKey = freezed,
+  }) {
+    return _then(_SnKeyPair(
+      id: null == id
+          ? _self.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      accountId: null == accountId
+          ? _self.accountId
+          : accountId // ignore: cast_nullable_to_non_nullable
+              as int,
+      publicKey: null == publicKey
+          ? _self.publicKey
+          : publicKey // ignore: cast_nullable_to_non_nullable
+              as String,
+      isActive: freezed == isActive
+          ? _self.isActive
+          : isActive // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      privateKey: freezed == privateKey
+          ? _self.privateKey
+          : privateKey // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+// dart format on

lib/types/keypair.g.dart

@@ -0,0 +1,24 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'keypair.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_SnKeyPair _$SnKeyPairFromJson(Map<String, dynamic> json) => _SnKeyPair(
+      id: json['id'] as String,
+      accountId: (json['account_id'] as num).toInt(),
+      publicKey: json['public_key'] as String,
+      isActive: json['is_active'] as bool?,
+      privateKey: json['private_key'] as String?,
+    );
+
+Map<String, dynamic> _$SnKeyPairToJson(_SnKeyPair instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'account_id': instance.accountId,
+      'public_key': instance.publicKey,
+      'is_active': instance.isActive,
+      'private_key': instance.privateKey,
+    };

lib/widgets/attachment/attachment_item.dart

@@ -16,6 +16,7 @@ import 'package:surface/providers/sn_network.dart';
 import 'package:surface/types/attachment.dart';
 import 'package:surface/widgets/universal_image.dart';
 import 'package:uuid/uuid.dart';
+import 'package:surface/widgets/dialog.dart';
 
 class AttachmentItem extends StatelessWidget {
   final SnAttachment? data;
@@ -289,6 +290,7 @@ class _AttachmentItemContentVideoState extends State<_AttachmentItemContentVideo
                               shadows: labelShadows,
                               color: Colors.white,
                             ),
+                            maxLines: 1,
                           ),
                         ],
                       ),
@@ -480,12 +482,13 @@ class _AttachmentItemContentAudioState extends State<_AttachmentItemContentAudio
                             ),
                           ),
                           Text(
-                            widget.data.size.toString(),
+                            widget.data.size.formatBytes(),
                             style: GoogleFonts.robotoMono(
                               fontSize: 12,
                               shadows: labelShadows,
                               color: Colors.white,
                             ),
+                            maxLines: 1,
                           ),
                         ],
                       ),

lib/widgets/attachment/attachment_list.dart

@@ -42,10 +42,7 @@ class AttachmentList extends StatefulWidget {
 }
 
 class _AttachmentListState extends State<AttachmentList> {
-  late final List<String> heroTags = List.generate(
+  late final List<String> heroTags = List.generate(widget.data.length, (_) => const Uuid().v4());
-    widget.data.length,
-    (_) => const Uuid().v4(),
-  );
 
   @override
   Widget build(BuildContext context) {
@@ -61,13 +58,13 @@ class _AttachmentListState extends State<AttachmentList> {
 
         if (widget.data.isEmpty) return const SizedBox.shrink();
         if (widget.data.length == 1) {
-          final singleAspectRatio = widget.data[0]?.data['ratio']?.toDouble() ??
+          final singleAspectRatio =
+              widget.data[0]?.data['ratio']?.toDouble() ??
               switch (widget.data[0]?.mimetype.split('/').firstOrNull) {
                 'audio' => 16 / 9,
                 'video' => 16 / 9,
                 _ => 1,
-              }
+              }.toDouble();
-                  .toDouble();
 
           return Container(
             padding: widget.padding ?? EdgeInsets.zero,
@@ -83,11 +80,7 @@ class _AttachmentListState extends State<AttachmentList> {
                   ),
                   child: ClipRRect(
                     borderRadius: AttachmentList.kDefaultRadius,
-                    child: AttachmentItem(
+                    child: AttachmentItem(data: widget.data[0], heroTag: heroTags[0], fit: widget.fit),
-                      data: widget.data[0],
-                      heroTag: heroTags[0],
-                      fit: widget.fit,
-                    ),
                   ),
                 ),
               ),
@@ -115,10 +108,7 @@ class _AttachmentListState extends State<AttachmentList> {
             margin: widget.padding ?? EdgeInsets.zero,
             decoration: BoxDecoration(
               color: backgroundColor,
-              border: Border(
+              border: Border(top: borderSide, bottom: borderSide),
-                top: borderSide,
-                bottom: borderSide,
-              ),
               borderRadius: AttachmentList.kDefaultRadius,
             ),
             child: ClipRRect(
@@ -127,32 +117,29 @@ class _AttachmentListState extends State<AttachmentList> {
                 crossAxisCount: math.min(widget.data.length, 2),
                 crossAxisSpacing: 4,
                 mainAxisSpacing: 4,
-                children: widget.data
+                children:
-                    .mapIndexed(
+                    widget.data
-                      (idx, ele) => GestureDetector(
+                        .mapIndexed(
-                        child: Container(
+                          (idx, ele) => GestureDetector(
-                          constraints: constraints,
+                            child: Container(
-                          child: AttachmentItem(
+                              constraints: constraints,
-                            data: ele,
+                              child: AttachmentItem(data: ele, heroTag: heroTags[idx], fit: BoxFit.cover),
-                            heroTag: heroTags[idx],
-                            fit: BoxFit.cover,
-                          ),
-                        ),
-                        onTap: () {
-                          if (widget.data[idx]!.mediaType != SnMediaType.image) return;
-                          context.pushTransparentRoute(
-                            AttachmentZoomView(
-                              data: widget.data.where((ele) => ele != null).cast(),
-                              initialIndex: idx,
-                              heroTags: heroTags,
                             ),
-                            backgroundColor: Colors.black.withOpacity(0.7),
+                            onTap: () {
-                            rootNavigator: true,
+                              if (widget.data[idx]!.mediaType != SnMediaType.image) return;
-                          );
+                              context.pushTransparentRoute(
-                        },
+                                AttachmentZoomView(
-                      ),
+                                  data: widget.data.where((ele) => ele != null).cast(),
-                    )
+                                  initialIndex: idx,
-                    .toList(),
+                                  heroTags: heroTags,
+                                ),
+                                backgroundColor: Colors.black.withOpacity(0.7),
+                                rootNavigator: true,
+                              );
+                            },
+                          ),
+                        )
+                        .toList(),
               ),
             ),
           );
@@ -163,43 +150,37 @@ class _AttachmentListState extends State<AttachmentList> {
             margin: widget.padding ?? EdgeInsets.zero,
             decoration: BoxDecoration(
               color: backgroundColor,
-              border: Border(
+              border: Border(top: borderSide, bottom: borderSide),
-                top: borderSide,
-                bottom: borderSide,
-              ),
               borderRadius: AttachmentList.kDefaultRadius,
             ),
             child: ClipRRect(
               borderRadius: AttachmentList.kDefaultRadius,
               child: Column(
-                children: widget.data
+                children:
-                    .mapIndexed(
+                    widget.data
-                      (idx, ele) => GestureDetector(
+                        .mapIndexed(
-                        child: AspectRatio(
+                          (idx, ele) => GestureDetector(
-                          aspectRatio: ele?.data['ratio']?.toDouble() ?? 1,
+                            child: AspectRatio(
-                          child: Container(
+                              aspectRatio: ele?.data['ratio']?.toDouble() ?? 1,
-                            constraints: constraints,
+                              child: Container(
-                            child: AttachmentItem(
+                                constraints: constraints,
-                              data: ele,
+                                child: AttachmentItem(data: ele, heroTag: heroTags[idx], fit: BoxFit.cover),
-                              heroTag: heroTags[idx],
+                              ),
-                              fit: BoxFit.cover,
                             ),
                           ),
-                        ),
+                        )
-                      ),
+                        .expand((ele) => [ele, const Divider(height: 1)])
-                    )
+                        .toList()
-                    .expand((ele) => [ele, const Divider(height: 1)])
+                      ..removeLast(),
-                    .toList()
-                  ..removeLast(),
               ),
             ),
           );
         }
 
-        return AspectRatio(
+        return Container(
-          aspectRatio: widget.data[0]?.data['ratio']?.toDouble() ?? 1,
+          constraints: BoxConstraints(maxHeight: constraints.maxHeight),
-          child: Container(
+          child: AspectRatio(
-            constraints: BoxConstraints(maxHeight: constraints.maxHeight),
+            aspectRatio: widget.data[0]?.data['ratio']?.toDouble() ?? 1,
             child: ScrollConfiguration(
               behavior: _AttachmentListScrollBehavior(),
               child: ListView.separated(
@@ -216,7 +197,8 @@ class _AttachmentListState extends State<AttachmentList> {
                           if (widget.data[idx]?.mediaType != SnMediaType.image) return;
                           context.pushTransparentRoute(
                             AttachmentZoomView(
-                              data: widget.data.where((ele) => ele != null && ele.mediaType == SnMediaType.image).cast(),
+                              data:
+                                  widget.data.where((ele) => ele != null && ele.mediaType == SnMediaType.image).cast(),
                               initialIndex: idx,
                               heroTags: heroTags,
                             ),
@@ -230,26 +212,18 @@ class _AttachmentListState extends State<AttachmentList> {
                             Container(
                               decoration: BoxDecoration(
                                 color: backgroundColor,
-                                border: Border(
+                                border: Border(top: borderSide, bottom: borderSide),
-                                  top: borderSide,
-                                  bottom: borderSide,
-                                ),
                                 borderRadius: AttachmentList.kDefaultRadius,
                               ),
                               child: ClipRRect(
                                 borderRadius: AttachmentList.kDefaultRadius,
-                                child: AttachmentItem(
+                                child: AttachmentItem(data: widget.data[idx], heroTag: heroTags[idx]),
-                                  data: widget.data[idx],
-                                  heroTag: heroTags[idx],
-                                ),
                               ),
                             ),
                             Positioned(
                               right: 8,
                               bottom: 8,
-                              child: Chip(
+                              child: Chip(label: Text('${idx + 1}/${widget.data.length}')),
-                                label: Text('${idx + 1}/${widget.data.length}'),
-                              ),
                             ),
                           ],
                         ),
@@ -271,8 +245,5 @@ class _AttachmentListState extends State<AttachmentList> {
 
 class _AttachmentListScrollBehavior extends MaterialScrollBehavior {
   @override
-  Set<PointerDeviceKind> get dragDevices => {
+  Set<PointerDeviceKind> get dragDevices => {PointerDeviceKind.touch, PointerDeviceKind.mouse};
-        PointerDeviceKind.touch,
-        PointerDeviceKind.mouse,
-      };
 }

lib/widgets/chat/chat_message.dart

@@ -106,37 +106,30 @@ class ChatMessage extends StatelessWidget {
                     GestureDetector(
                       child: AccountImage(
                         content: user?.avatar,
-                        badge: (user?.badges.isNotEmpty ?? false)
+                        badge:
-                            ? Icon(
+                            (user?.badges.isNotEmpty ?? false)
-                                kBadgesMeta[user!.badges.first.type]?.$2 ??
+                                ? Icon(
-                                    Symbols.question_mark,
+                                  kBadgesMeta[user!.badges.first.type]?.$2 ?? Symbols.question_mark,
-                                color: kBadgesMeta[user.badges.first.type]?.$3,
+                                  color: kBadgesMeta[user.badges.first.type]?.$3,
-                                fill: 1,
+                                  fill: 1,
-                                size: 18,
+                                  size: 18,
-                                shadows: [
+                                  shadows: [
-                                  Shadow(
+                                    Shadow(offset: Offset(1, 1), blurRadius: 5.0, color: Color.fromARGB(200, 0, 0, 0)),
-                                    offset: Offset(1, 1),
+                                  ],
-                                    blurRadius: 5.0,
+                                )
-                                    color: Color.fromARGB(200, 0, 0, 0),
+                                : null,
-                                  ),
-                                ],
-                              )
-                            : null,
                       ),
                       onTap: () {
                         if (user == null) return;
                         showPopover(
-                          backgroundColor:
+                          backgroundColor: Theme.of(context).colorScheme.surface,
-                              Theme.of(context).colorScheme.surface,
                           context: context,
                           transition: PopoverTransition.other,
-                          bodyBuilder: (context) => SizedBox(
+                          bodyBuilder:
-                            width: math.min(
+                              (context) => SizedBox(
-                                400, MediaQuery.of(context).size.width - 10),
+                                width: math.min(400, MediaQuery.of(context).size.width - 10),
-                            child: AccountPopoverCard(
+                                child: AccountPopoverCard(data: user),
-                              data: user,
+                              ),
-                            ),
-                          ),
                           direction: PopoverDirection.bottom,
                           arrowHeight: 5,
                           arrowWidth: 15,
@@ -157,64 +150,46 @@ class ChatMessage extends StatelessWidget {
                             Row(
                               crossAxisAlignment: CrossAxisAlignment.center,
                               children: [
-                                if (isCompact)
+                                if (isCompact) AccountImage(content: user?.avatar, radius: 12).padding(right: 8),
-                                  AccountImage(
-                                    content: user?.avatar,
-                                    radius: 12,
-                                  ).padding(right: 8),
                                 Text(
-                                  (data.sender.nick?.isNotEmpty ?? false)
+                                  (data.sender.nick?.isNotEmpty ?? false) ? data.sender.nick! : user?.nick ?? 'unknown',
-                                      ? data.sender.nick!
-                                      : user?.nick ?? 'unknown',
                                 ).bold(),
                                 const Gap(8),
-                                Text(
+                                Text(dateFormatter.format(data.createdAt.toLocal())).fontSize(13),
-                                  dateFormatter
-                                      .format(data.createdAt.toLocal()),
-                                ).fontSize(13),
                               ],
                             ).height(21),
                           if (isCompact) const Gap(8),
                           if (data.preload?.quoteEvent != null)
-                            StyledWidget(Container(
+                            StyledWidget(
-                              constraints: BoxConstraints(
+                              Container(
-                                maxWidth: 360,
+                                constraints: BoxConstraints(maxWidth: 360),
-                              ),
+                                decoration: BoxDecoration(
-                              decoration: BoxDecoration(
+                                  borderRadius: const BorderRadius.all(Radius.circular(8)),
-                                borderRadius:
+                                  border: Border.all(color: Theme.of(context).dividerColor, width: 1),
-                                    const BorderRadius.all(Radius.circular(8)),
+                                ),
-                                border: Border.all(
+                                padding: const EdgeInsets.only(left: 4, right: 4, top: 8, bottom: 6),
-                                  color: Theme.of(context).dividerColor,
+                                child: ChatMessage(
-                                  width: 1,
+                                  data: data.preload!.quoteEvent!,
+                                  isCompact: true,
+                                  onReply: onReply,
+                                  onEdit: onEdit,
+                                  onDelete: onDelete,
                                 ),
                               ),
-                              padding: const EdgeInsets.only(
+                            ).padding(bottom: 4, top: 4),
-                                left: 4,
-                                right: 4,
-                                top: 8,
-                                bottom: 6,
-                              ),
-                              child: ChatMessage(
-                                data: data.preload!.quoteEvent!,
-                                isCompact: true,
-                                onReply: onReply,
-                                onEdit: onEdit,
-                                onDelete: onDelete,
-                              ),
-                            )).padding(bottom: 4, top: 4),
                           switch (data.type) {
                             'messages.new' => _ChatMessageText(
-                                data: data,
+                              data: data,
-                                onReply: onReply,
+                              onReply: onReply,
-                                onEdit: onEdit,
+                              onEdit: onEdit,
-                                onDelete: onDelete,
+                              onDelete: onDelete,
-                              ),
+                            ),
                             _ => _ChatMessageSystemNotify(data: data),
                           },
                         ],
                       ),
                     ),
-                  )
+                  ),
                 ],
               ).opacity(isPending ? 0.5 : 1),
             ),
@@ -222,22 +197,16 @@ class ChatMessage extends StatelessWidget {
                 data.type == 'messages.new' &&
                 (data.body['text']?.isNotEmpty ?? false) &&
                 (cfg.prefs.getBool(kAppExpandChatLink) ?? true))
-              LinkPreviewWidget(text: data.body['text']!),
+              LinkPreviewWidget(text: data.body['text']!).padding(left: 48),
             if (data.preload?.attachments?.isNotEmpty ?? false)
               AttachmentList(
                 data: data.preload!.attachments!,
                 bordered: true,
                 maxHeight: 360,
                 maxWidth: 480 - 48 - padding.left,
-                padding: padding.copyWith(
+                padding: padding.copyWith(top: 8, left: isCompact ? padding.left : 48 + padding.left),
-                  top: 8,
-                  left: isCompact ? padding.left : 48 + padding.left,
-                ),
               ),
-            if (!hasMerged && !isCompact)
+            if (!hasMerged && !isCompact) const Gap(12) else if (!isCompact) const Gap(8),
-              const Gap(12)
-            else if (!isCompact)
-              const Gap(8),
           ],
         ),
       ),
@@ -251,8 +220,7 @@ class _ChatMessageText extends StatelessWidget {
   final Function(SnChatMessage)? onEdit;
   final Function(SnChatMessage)? onDelete;
 
-  const _ChatMessageText(
+  const _ChatMessageText({required this.data, this.onReply, this.onEdit, this.onDelete});
-      {required this.data, this.onReply, this.onEdit, this.onDelete});
 
   @override
   Widget build(BuildContext context) {
@@ -266,8 +234,7 @@ class _ChatMessageText extends StatelessWidget {
         children: [
           SelectionArea(
             contextMenuBuilder: (context, editableTextState) {
-              final List<ContextMenuButtonItem> items =
+              final List<ContextMenuButtonItem> items = editableTextState.contextMenuButtonItems;
-                  editableTextState.contextMenuButtonItems;
 
               if (onReply != null) {
                 items.insert(
@@ -314,14 +281,10 @@ class _ChatMessageText extends StatelessWidget {
             child: MarkdownTextContent(
               content: data.body['text'],
               isAutoWarp: true,
-              isEnlargeSticker:
+              isEnlargeSticker: RegExp(r"^:([-\w]+):$").hasMatch(data.body['text'] ?? ''),
-                  RegExp(r"^:([-\w]+):$").hasMatch(data.body['text'] ?? ''),
             ),
           ),
-          if (data.updatedAt != data.createdAt)
+          if (data.updatedAt != data.createdAt) Text('messageEditedHint'.tr()).fontSize(13).opacity(0.75),
-            Text(
-              'messageEditedHint'.tr(),
-            ).fontSize(13).opacity(0.75),
         ],
       );
     } else if (data.body['attachments']?.isNotEmpty) {
@@ -329,11 +292,7 @@ class _ChatMessageText extends StatelessWidget {
         children: [
           const Icon(Symbols.file_present, size: 20),
           const Gap(4),
-          Text(
+          Text('messageFileHint'.plural(data.body['attachments']!.length)),
-            'messageFileHint'.plural(
-              data.body['attachments']!.length,
-            ),
-          ),
         ],
       ).opacity(0.75);
     }
@@ -363,9 +322,7 @@ class _ChatMessageSystemNotify extends StatelessWidget {
           children: [
             const Icon(Symbols.edit, size: 20),
             const Gap(4),
-            Text(
+            Text('messageEdited'.tr(args: ['#${data.relatedEventId}'])),
-              'messageEdited'.tr(args: ['#${data.relatedEventId}']),
-            ),
           ],
         ).opacity(0.75);
       case 'messages.delete':
@@ -373,31 +330,19 @@ class _ChatMessageSystemNotify extends StatelessWidget {
           children: [
             const Icon(Symbols.delete, size: 20),
             const Gap(4),
-            Text(
+            Text('messageDeleted'.tr(args: ['#${data.relatedEventId}'])),
-              'messageDeleted'.tr(args: ['#${data.relatedEventId}']),
-            ),
           ],
         ).opacity(0.75);
       case 'calls.start':
         return Row(
-          children: [
+          children: [const Icon(Symbols.call, size: 20), const Gap(4), Text('callMessageStarted'.tr())],
-            const Icon(Symbols.call, size: 20),
-            const Gap(4),
-            Text(
-              'callMessageStarted'.tr(),
-            ),
-          ],
         ).opacity(0.75);
       case 'calls.end':
         return Row(
           children: [
             const Icon(Symbols.call_end, size: 20),
             const Gap(4),
-            Text(
+            Text('callMessageEnded'.tr(args: [_formatDuration(Duration(seconds: data.body['last']))])),
-              'callMessageEnded'.tr(args: [
-                _formatDuration(Duration(seconds: data.body['last'])),
-              ]),
-            ),
           ],
         ).opacity(0.75);
       default:

linux/flutter/generated_plugin_registrant.cc

@@ -7,6 +7,7 @@
 #include "generated_plugin_registrant.h"
 
 #include <bitsdojo_window_linux/bitsdojo_window_plugin.h>
+#include <fast_rsa/fast_rsa_plugin.h>
 #include <file_saver/file_saver_plugin.h>
 #include <file_selector_linux/file_selector_plugin.h>
 #include <flutter_timezone/flutter_timezone_plugin.h>
@@ -25,6 +26,9 @@ void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) bitsdojo_window_linux_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "BitsdojoWindowPlugin");
   bitsdojo_window_plugin_register_with_registrar(bitsdojo_window_linux_registrar);
+  g_autoptr(FlPluginRegistrar) fast_rsa_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "FastRsaPlugin");
+  fast_rsa_plugin_register_with_registrar(fast_rsa_registrar);
   g_autoptr(FlPluginRegistrar) file_saver_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "FileSaverPlugin");
   file_saver_plugin_register_with_registrar(file_saver_registrar);

linux/flutter/generated_plugins.cmake

@@ -4,6 +4,7 @@
 
 list(APPEND FLUTTER_PLUGIN_LIST
   bitsdojo_window_linux
+  fast_rsa
   file_saver
   file_selector_linux
   flutter_timezone

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -8,6 +8,7 @@ import Foundation
 import bitsdojo_window_macos
 import connectivity_plus
 import device_info_plus
+import fast_rsa
 import file_picker
 import file_saver
 import file_selector_macos
@@ -43,6 +44,7 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   BitsdojoWindowPlugin.register(with: registry.registrar(forPlugin: "BitsdojoWindowPlugin"))
   ConnectivityPlusPlugin.register(with: registry.registrar(forPlugin: "ConnectivityPlusPlugin"))
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
+  FastRsaPlugin.register(with: registry.registrar(forPlugin: "FastRsaPlugin"))
   FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
   FileSaverPlugin.register(with: registry.registrar(forPlugin: "FileSaverPlugin"))
   FileSelectorPlugin.register(with: registry.registrar(forPlugin: "FileSelectorPlugin"))

pubspec.lock

@@ -513,6 +513,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.2"
+  fast_rsa:
+    dependency: "direct main"
+    description:
+      name: fast_rsa
+      sha256: "205a36c0412b9fabebf3e18ccb5221d819cc28cfb3da988c0bf7b646368d0270"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.8.0"
   ffi:
     dependency: transitive
     description:
@@ -665,6 +673,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.70.2"
+  flat_buffers:
+    dependency: transitive
+    description:
+      name: flat_buffers
+      sha256: "380bdcba5664a718bfd4ea20a45d39e13684f5318fcd8883066a55e21f37f4c3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "23.5.26"
   flutter:
     dependency: "direct main"
     description: flutter

pubspec.yaml

@@ -137,6 +137,7 @@ dependencies:
   flutter_timezone: ^4.1.0
   flutter_map: ^8.1.0
   geolocator: ^13.0.2
+  fast_rsa: ^3.8.0
 
 dev_dependencies:
   flutter_test:

test/drift/my_database/generated/schema.dart

@@ -0,0 +1,23 @@
+// dart format width=80
+// GENERATED CODE, DO NOT EDIT BY HAND.
+// ignore_for_file: type=lint
+import 'package:drift/drift.dart';
+import 'package:drift/internal/migrations.dart';
+import 'schema_v1.dart' as v1;
+import 'schema_v2.dart' as v2;
+
+class GeneratedHelper implements SchemaInstantiationHelper {
+  @override
+  GeneratedDatabase databaseForVersion(QueryExecutor db, int version) {
+    switch (version) {
+      case 1:
+        return v1.DatabaseAtV1(db);
+      case 2:
+        return v2.DatabaseAtV2(db);
+      default:
+        throw MissingSchemaException(version, versions);
+    }
+  }
+
+  static const versions = const [1, 2];
+}

test/drift/my_database/generated/schema_v1.dart

@@ -0,0 +1,462 @@
+// dart format width=80
+// GENERATED CODE, DO NOT EDIT BY HAND.
+// ignore_for_file: type=lint
+import 'package:drift/drift.dart';
+
+class SnLocalChatChannel extends Table
+    with TableInfo<SnLocalChatChannel, SnLocalChatChannelData> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  SnLocalChatChannel(this.attachedDatabase, [this._alias]);
+  late final GeneratedColumn<int> id = GeneratedColumn<int>(
+      'id', aliasedName, false,
+      hasAutoIncrement: true,
+      type: DriftSqlType.int,
+      requiredDuringInsert: false,
+      defaultConstraints:
+          GeneratedColumn.constraintIsAlways('PRIMARY KEY AUTOINCREMENT'));
+  late final GeneratedColumn<String> alias = GeneratedColumn<String>(
+      'alias', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<String> content = GeneratedColumn<String>(
+      'content', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<DateTime> createdAt = GeneratedColumn<DateTime>(
+      'created_at', aliasedName, false,
+      type: DriftSqlType.dateTime,
+      requiredDuringInsert: false,
+      defaultValue: const CustomExpression(
+          'CAST(strftime(\'%s\', CURRENT_TIMESTAMP) AS INTEGER)'));
+  @override
+  List<GeneratedColumn> get $columns => [id, alias, content, createdAt];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'sn_local_chat_channel';
+  @override
+  Set<GeneratedColumn> get $primaryKey => {id};
+  @override
+  SnLocalChatChannelData map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return SnLocalChatChannelData(
+      id: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}id'])!,
+      alias: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}alias'])!,
+      content: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}content'])!,
+      createdAt: attachedDatabase.typeMapping
+          .read(DriftSqlType.dateTime, data['${effectivePrefix}created_at'])!,
+    );
+  }
+
+  @override
+  SnLocalChatChannel createAlias(String alias) {
+    return SnLocalChatChannel(attachedDatabase, alias);
+  }
+}
+
+class SnLocalChatChannelData extends DataClass
+    implements Insertable<SnLocalChatChannelData> {
+  final int id;
+  final String alias;
+  final String content;
+  final DateTime createdAt;
+  const SnLocalChatChannelData(
+      {required this.id,
+      required this.alias,
+      required this.content,
+      required this.createdAt});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['id'] = Variable<int>(id);
+    map['alias'] = Variable<String>(alias);
+    map['content'] = Variable<String>(content);
+    map['created_at'] = Variable<DateTime>(createdAt);
+    return map;
+  }
+
+  SnLocalChatChannelCompanion toCompanion(bool nullToAbsent) {
+    return SnLocalChatChannelCompanion(
+      id: Value(id),
+      alias: Value(alias),
+      content: Value(content),
+      createdAt: Value(createdAt),
+    );
+  }
+
+  factory SnLocalChatChannelData.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return SnLocalChatChannelData(
+      id: serializer.fromJson<int>(json['id']),
+      alias: serializer.fromJson<String>(json['alias']),
+      content: serializer.fromJson<String>(json['content']),
+      createdAt: serializer.fromJson<DateTime>(json['createdAt']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'id': serializer.toJson<int>(id),
+      'alias': serializer.toJson<String>(alias),
+      'content': serializer.toJson<String>(content),
+      'createdAt': serializer.toJson<DateTime>(createdAt),
+    };
+  }
+
+  SnLocalChatChannelData copyWith(
+          {int? id, String? alias, String? content, DateTime? createdAt}) =>
+      SnLocalChatChannelData(
+        id: id ?? this.id,
+        alias: alias ?? this.alias,
+        content: content ?? this.content,
+        createdAt: createdAt ?? this.createdAt,
+      );
+  SnLocalChatChannelData copyWithCompanion(SnLocalChatChannelCompanion data) {
+    return SnLocalChatChannelData(
+      id: data.id.present ? data.id.value : this.id,
+      alias: data.alias.present ? data.alias.value : this.alias,
+      content: data.content.present ? data.content.value : this.content,
+      createdAt: data.createdAt.present ? data.createdAt.value : this.createdAt,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatChannelData(')
+          ..write('id: $id, ')
+          ..write('alias: $alias, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode => Object.hash(id, alias, content, createdAt);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is SnLocalChatChannelData &&
+          other.id == this.id &&
+          other.alias == this.alias &&
+          other.content == this.content &&
+          other.createdAt == this.createdAt);
+}
+
+class SnLocalChatChannelCompanion
+    extends UpdateCompanion<SnLocalChatChannelData> {
+  final Value<int> id;
+  final Value<String> alias;
+  final Value<String> content;
+  final Value<DateTime> createdAt;
+  const SnLocalChatChannelCompanion({
+    this.id = const Value.absent(),
+    this.alias = const Value.absent(),
+    this.content = const Value.absent(),
+    this.createdAt = const Value.absent(),
+  });
+  SnLocalChatChannelCompanion.insert({
+    this.id = const Value.absent(),
+    required String alias,
+    required String content,
+    this.createdAt = const Value.absent(),
+  })  : alias = Value(alias),
+        content = Value(content);
+  static Insertable<SnLocalChatChannelData> custom({
+    Expression<int>? id,
+    Expression<String>? alias,
+    Expression<String>? content,
+    Expression<DateTime>? createdAt,
+  }) {
+    return RawValuesInsertable({
+      if (id != null) 'id': id,
+      if (alias != null) 'alias': alias,
+      if (content != null) 'content': content,
+      if (createdAt != null) 'created_at': createdAt,
+    });
+  }
+
+  SnLocalChatChannelCompanion copyWith(
+      {Value<int>? id,
+      Value<String>? alias,
+      Value<String>? content,
+      Value<DateTime>? createdAt}) {
+    return SnLocalChatChannelCompanion(
+      id: id ?? this.id,
+      alias: alias ?? this.alias,
+      content: content ?? this.content,
+      createdAt: createdAt ?? this.createdAt,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (id.present) {
+      map['id'] = Variable<int>(id.value);
+    }
+    if (alias.present) {
+      map['alias'] = Variable<String>(alias.value);
+    }
+    if (content.present) {
+      map['content'] = Variable<String>(content.value);
+    }
+    if (createdAt.present) {
+      map['created_at'] = Variable<DateTime>(createdAt.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatChannelCompanion(')
+          ..write('id: $id, ')
+          ..write('alias: $alias, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+}
+
+class SnLocalChatMessage extends Table
+    with TableInfo<SnLocalChatMessage, SnLocalChatMessageData> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  SnLocalChatMessage(this.attachedDatabase, [this._alias]);
+  late final GeneratedColumn<int> id = GeneratedColumn<int>(
+      'id', aliasedName, false,
+      hasAutoIncrement: true,
+      type: DriftSqlType.int,
+      requiredDuringInsert: false,
+      defaultConstraints:
+          GeneratedColumn.constraintIsAlways('PRIMARY KEY AUTOINCREMENT'));
+  late final GeneratedColumn<int> channelId = GeneratedColumn<int>(
+      'channel_id', aliasedName, false,
+      type: DriftSqlType.int, requiredDuringInsert: true);
+  late final GeneratedColumn<String> content = GeneratedColumn<String>(
+      'content', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<DateTime> createdAt = GeneratedColumn<DateTime>(
+      'created_at', aliasedName, false,
+      type: DriftSqlType.dateTime,
+      requiredDuringInsert: false,
+      defaultValue: const CustomExpression(
+          'CAST(strftime(\'%s\', CURRENT_TIMESTAMP) AS INTEGER)'));
+  @override
+  List<GeneratedColumn> get $columns => [id, channelId, content, createdAt];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'sn_local_chat_message';
+  @override
+  Set<GeneratedColumn> get $primaryKey => {id};
+  @override
+  SnLocalChatMessageData map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return SnLocalChatMessageData(
+      id: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}id'])!,
+      channelId: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}channel_id'])!,
+      content: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}content'])!,
+      createdAt: attachedDatabase.typeMapping
+          .read(DriftSqlType.dateTime, data['${effectivePrefix}created_at'])!,
+    );
+  }
+
+  @override
+  SnLocalChatMessage createAlias(String alias) {
+    return SnLocalChatMessage(attachedDatabase, alias);
+  }
+}
+
+class SnLocalChatMessageData extends DataClass
+    implements Insertable<SnLocalChatMessageData> {
+  final int id;
+  final int channelId;
+  final String content;
+  final DateTime createdAt;
+  const SnLocalChatMessageData(
+      {required this.id,
+      required this.channelId,
+      required this.content,
+      required this.createdAt});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['id'] = Variable<int>(id);
+    map['channel_id'] = Variable<int>(channelId);
+    map['content'] = Variable<String>(content);
+    map['created_at'] = Variable<DateTime>(createdAt);
+    return map;
+  }
+
+  SnLocalChatMessageCompanion toCompanion(bool nullToAbsent) {
+    return SnLocalChatMessageCompanion(
+      id: Value(id),
+      channelId: Value(channelId),
+      content: Value(content),
+      createdAt: Value(createdAt),
+    );
+  }
+
+  factory SnLocalChatMessageData.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return SnLocalChatMessageData(
+      id: serializer.fromJson<int>(json['id']),
+      channelId: serializer.fromJson<int>(json['channelId']),
+      content: serializer.fromJson<String>(json['content']),
+      createdAt: serializer.fromJson<DateTime>(json['createdAt']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'id': serializer.toJson<int>(id),
+      'channelId': serializer.toJson<int>(channelId),
+      'content': serializer.toJson<String>(content),
+      'createdAt': serializer.toJson<DateTime>(createdAt),
+    };
+  }
+
+  SnLocalChatMessageData copyWith(
+          {int? id, int? channelId, String? content, DateTime? createdAt}) =>
+      SnLocalChatMessageData(
+        id: id ?? this.id,
+        channelId: channelId ?? this.channelId,
+        content: content ?? this.content,
+        createdAt: createdAt ?? this.createdAt,
+      );
+  SnLocalChatMessageData copyWithCompanion(SnLocalChatMessageCompanion data) {
+    return SnLocalChatMessageData(
+      id: data.id.present ? data.id.value : this.id,
+      channelId: data.channelId.present ? data.channelId.value : this.channelId,
+      content: data.content.present ? data.content.value : this.content,
+      createdAt: data.createdAt.present ? data.createdAt.value : this.createdAt,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatMessageData(')
+          ..write('id: $id, ')
+          ..write('channelId: $channelId, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode => Object.hash(id, channelId, content, createdAt);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is SnLocalChatMessageData &&
+          other.id == this.id &&
+          other.channelId == this.channelId &&
+          other.content == this.content &&
+          other.createdAt == this.createdAt);
+}
+
+class SnLocalChatMessageCompanion
+    extends UpdateCompanion<SnLocalChatMessageData> {
+  final Value<int> id;
+  final Value<int> channelId;
+  final Value<String> content;
+  final Value<DateTime> createdAt;
+  const SnLocalChatMessageCompanion({
+    this.id = const Value.absent(),
+    this.channelId = const Value.absent(),
+    this.content = const Value.absent(),
+    this.createdAt = const Value.absent(),
+  });
+  SnLocalChatMessageCompanion.insert({
+    this.id = const Value.absent(),
+    required int channelId,
+    required String content,
+    this.createdAt = const Value.absent(),
+  })  : channelId = Value(channelId),
+        content = Value(content);
+  static Insertable<SnLocalChatMessageData> custom({
+    Expression<int>? id,
+    Expression<int>? channelId,
+    Expression<String>? content,
+    Expression<DateTime>? createdAt,
+  }) {
+    return RawValuesInsertable({
+      if (id != null) 'id': id,
+      if (channelId != null) 'channel_id': channelId,
+      if (content != null) 'content': content,
+      if (createdAt != null) 'created_at': createdAt,
+    });
+  }
+
+  SnLocalChatMessageCompanion copyWith(
+      {Value<int>? id,
+      Value<int>? channelId,
+      Value<String>? content,
+      Value<DateTime>? createdAt}) {
+    return SnLocalChatMessageCompanion(
+      id: id ?? this.id,
+      channelId: channelId ?? this.channelId,
+      content: content ?? this.content,
+      createdAt: createdAt ?? this.createdAt,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (id.present) {
+      map['id'] = Variable<int>(id.value);
+    }
+    if (channelId.present) {
+      map['channel_id'] = Variable<int>(channelId.value);
+    }
+    if (content.present) {
+      map['content'] = Variable<String>(content.value);
+    }
+    if (createdAt.present) {
+      map['created_at'] = Variable<DateTime>(createdAt.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatMessageCompanion(')
+          ..write('id: $id, ')
+          ..write('channelId: $channelId, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+}
+
+class DatabaseAtV1 extends GeneratedDatabase {
+  DatabaseAtV1(QueryExecutor e) : super(e);
+  late final SnLocalChatChannel snLocalChatChannel = SnLocalChatChannel(this);
+  late final SnLocalChatMessage snLocalChatMessage = SnLocalChatMessage(this);
+  @override
+  Iterable<TableInfo<Table, Object?>> get allTables =>
+      allSchemaEntities.whereType<TableInfo<Table, Object?>>();
+  @override
+  List<DatabaseSchemaEntity> get allSchemaEntities =>
+      [snLocalChatChannel, snLocalChatMessage];
+  @override
+  int get schemaVersion => 1;
+}

test/drift/my_database/generated/schema_v2.dart

@@ -0,0 +1,730 @@
+// dart format width=80
+// GENERATED CODE, DO NOT EDIT BY HAND.
+// ignore_for_file: type=lint
+import 'package:drift/drift.dart';
+
+class SnLocalChatChannel extends Table
+    with TableInfo<SnLocalChatChannel, SnLocalChatChannelData> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  SnLocalChatChannel(this.attachedDatabase, [this._alias]);
+  late final GeneratedColumn<int> id = GeneratedColumn<int>(
+      'id', aliasedName, false,
+      hasAutoIncrement: true,
+      type: DriftSqlType.int,
+      requiredDuringInsert: false,
+      defaultConstraints:
+          GeneratedColumn.constraintIsAlways('PRIMARY KEY AUTOINCREMENT'));
+  late final GeneratedColumn<String> alias = GeneratedColumn<String>(
+      'alias', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<String> content = GeneratedColumn<String>(
+      'content', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<DateTime> createdAt = GeneratedColumn<DateTime>(
+      'created_at', aliasedName, false,
+      type: DriftSqlType.dateTime,
+      requiredDuringInsert: false,
+      defaultValue: const CustomExpression(
+          'CAST(strftime(\'%s\', CURRENT_TIMESTAMP) AS INTEGER)'));
+  @override
+  List<GeneratedColumn> get $columns => [id, alias, content, createdAt];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'sn_local_chat_channel';
+  @override
+  Set<GeneratedColumn> get $primaryKey => {id};
+  @override
+  SnLocalChatChannelData map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return SnLocalChatChannelData(
+      id: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}id'])!,
+      alias: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}alias'])!,
+      content: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}content'])!,
+      createdAt: attachedDatabase.typeMapping
+          .read(DriftSqlType.dateTime, data['${effectivePrefix}created_at'])!,
+    );
+  }
+
+  @override
+  SnLocalChatChannel createAlias(String alias) {
+    return SnLocalChatChannel(attachedDatabase, alias);
+  }
+}
+
+class SnLocalChatChannelData extends DataClass
+    implements Insertable<SnLocalChatChannelData> {
+  final int id;
+  final String alias;
+  final String content;
+  final DateTime createdAt;
+  const SnLocalChatChannelData(
+      {required this.id,
+      required this.alias,
+      required this.content,
+      required this.createdAt});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['id'] = Variable<int>(id);
+    map['alias'] = Variable<String>(alias);
+    map['content'] = Variable<String>(content);
+    map['created_at'] = Variable<DateTime>(createdAt);
+    return map;
+  }
+
+  SnLocalChatChannelCompanion toCompanion(bool nullToAbsent) {
+    return SnLocalChatChannelCompanion(
+      id: Value(id),
+      alias: Value(alias),
+      content: Value(content),
+      createdAt: Value(createdAt),
+    );
+  }
+
+  factory SnLocalChatChannelData.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return SnLocalChatChannelData(
+      id: serializer.fromJson<int>(json['id']),
+      alias: serializer.fromJson<String>(json['alias']),
+      content: serializer.fromJson<String>(json['content']),
+      createdAt: serializer.fromJson<DateTime>(json['createdAt']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'id': serializer.toJson<int>(id),
+      'alias': serializer.toJson<String>(alias),
+      'content': serializer.toJson<String>(content),
+      'createdAt': serializer.toJson<DateTime>(createdAt),
+    };
+  }
+
+  SnLocalChatChannelData copyWith(
+          {int? id, String? alias, String? content, DateTime? createdAt}) =>
+      SnLocalChatChannelData(
+        id: id ?? this.id,
+        alias: alias ?? this.alias,
+        content: content ?? this.content,
+        createdAt: createdAt ?? this.createdAt,
+      );
+  SnLocalChatChannelData copyWithCompanion(SnLocalChatChannelCompanion data) {
+    return SnLocalChatChannelData(
+      id: data.id.present ? data.id.value : this.id,
+      alias: data.alias.present ? data.alias.value : this.alias,
+      content: data.content.present ? data.content.value : this.content,
+      createdAt: data.createdAt.present ? data.createdAt.value : this.createdAt,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatChannelData(')
+          ..write('id: $id, ')
+          ..write('alias: $alias, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode => Object.hash(id, alias, content, createdAt);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is SnLocalChatChannelData &&
+          other.id == this.id &&
+          other.alias == this.alias &&
+          other.content == this.content &&
+          other.createdAt == this.createdAt);
+}
+
+class SnLocalChatChannelCompanion
+    extends UpdateCompanion<SnLocalChatChannelData> {
+  final Value<int> id;
+  final Value<String> alias;
+  final Value<String> content;
+  final Value<DateTime> createdAt;
+  const SnLocalChatChannelCompanion({
+    this.id = const Value.absent(),
+    this.alias = const Value.absent(),
+    this.content = const Value.absent(),
+    this.createdAt = const Value.absent(),
+  });
+  SnLocalChatChannelCompanion.insert({
+    this.id = const Value.absent(),
+    required String alias,
+    required String content,
+    this.createdAt = const Value.absent(),
+  })  : alias = Value(alias),
+        content = Value(content);
+  static Insertable<SnLocalChatChannelData> custom({
+    Expression<int>? id,
+    Expression<String>? alias,
+    Expression<String>? content,
+    Expression<DateTime>? createdAt,
+  }) {
+    return RawValuesInsertable({
+      if (id != null) 'id': id,
+      if (alias != null) 'alias': alias,
+      if (content != null) 'content': content,
+      if (createdAt != null) 'created_at': createdAt,
+    });
+  }
+
+  SnLocalChatChannelCompanion copyWith(
+      {Value<int>? id,
+      Value<String>? alias,
+      Value<String>? content,
+      Value<DateTime>? createdAt}) {
+    return SnLocalChatChannelCompanion(
+      id: id ?? this.id,
+      alias: alias ?? this.alias,
+      content: content ?? this.content,
+      createdAt: createdAt ?? this.createdAt,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (id.present) {
+      map['id'] = Variable<int>(id.value);
+    }
+    if (alias.present) {
+      map['alias'] = Variable<String>(alias.value);
+    }
+    if (content.present) {
+      map['content'] = Variable<String>(content.value);
+    }
+    if (createdAt.present) {
+      map['created_at'] = Variable<DateTime>(createdAt.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatChannelCompanion(')
+          ..write('id: $id, ')
+          ..write('alias: $alias, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+}
+
+class SnLocalChatMessage extends Table
+    with TableInfo<SnLocalChatMessage, SnLocalChatMessageData> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  SnLocalChatMessage(this.attachedDatabase, [this._alias]);
+  late final GeneratedColumn<int> id = GeneratedColumn<int>(
+      'id', aliasedName, false,
+      hasAutoIncrement: true,
+      type: DriftSqlType.int,
+      requiredDuringInsert: false,
+      defaultConstraints:
+          GeneratedColumn.constraintIsAlways('PRIMARY KEY AUTOINCREMENT'));
+  late final GeneratedColumn<int> channelId = GeneratedColumn<int>(
+      'channel_id', aliasedName, false,
+      type: DriftSqlType.int, requiredDuringInsert: true);
+  late final GeneratedColumn<String> content = GeneratedColumn<String>(
+      'content', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<DateTime> createdAt = GeneratedColumn<DateTime>(
+      'created_at', aliasedName, false,
+      type: DriftSqlType.dateTime,
+      requiredDuringInsert: false,
+      defaultValue: const CustomExpression(
+          'CAST(strftime(\'%s\', CURRENT_TIMESTAMP) AS INTEGER)'));
+  @override
+  List<GeneratedColumn> get $columns => [id, channelId, content, createdAt];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'sn_local_chat_message';
+  @override
+  Set<GeneratedColumn> get $primaryKey => {id};
+  @override
+  SnLocalChatMessageData map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return SnLocalChatMessageData(
+      id: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}id'])!,
+      channelId: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}channel_id'])!,
+      content: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}content'])!,
+      createdAt: attachedDatabase.typeMapping
+          .read(DriftSqlType.dateTime, data['${effectivePrefix}created_at'])!,
+    );
+  }
+
+  @override
+  SnLocalChatMessage createAlias(String alias) {
+    return SnLocalChatMessage(attachedDatabase, alias);
+  }
+}
+
+class SnLocalChatMessageData extends DataClass
+    implements Insertable<SnLocalChatMessageData> {
+  final int id;
+  final int channelId;
+  final String content;
+  final DateTime createdAt;
+  const SnLocalChatMessageData(
+      {required this.id,
+      required this.channelId,
+      required this.content,
+      required this.createdAt});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['id'] = Variable<int>(id);
+    map['channel_id'] = Variable<int>(channelId);
+    map['content'] = Variable<String>(content);
+    map['created_at'] = Variable<DateTime>(createdAt);
+    return map;
+  }
+
+  SnLocalChatMessageCompanion toCompanion(bool nullToAbsent) {
+    return SnLocalChatMessageCompanion(
+      id: Value(id),
+      channelId: Value(channelId),
+      content: Value(content),
+      createdAt: Value(createdAt),
+    );
+  }
+
+  factory SnLocalChatMessageData.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return SnLocalChatMessageData(
+      id: serializer.fromJson<int>(json['id']),
+      channelId: serializer.fromJson<int>(json['channelId']),
+      content: serializer.fromJson<String>(json['content']),
+      createdAt: serializer.fromJson<DateTime>(json['createdAt']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'id': serializer.toJson<int>(id),
+      'channelId': serializer.toJson<int>(channelId),
+      'content': serializer.toJson<String>(content),
+      'createdAt': serializer.toJson<DateTime>(createdAt),
+    };
+  }
+
+  SnLocalChatMessageData copyWith(
+          {int? id, int? channelId, String? content, DateTime? createdAt}) =>
+      SnLocalChatMessageData(
+        id: id ?? this.id,
+        channelId: channelId ?? this.channelId,
+        content: content ?? this.content,
+        createdAt: createdAt ?? this.createdAt,
+      );
+  SnLocalChatMessageData copyWithCompanion(SnLocalChatMessageCompanion data) {
+    return SnLocalChatMessageData(
+      id: data.id.present ? data.id.value : this.id,
+      channelId: data.channelId.present ? data.channelId.value : this.channelId,
+      content: data.content.present ? data.content.value : this.content,
+      createdAt: data.createdAt.present ? data.createdAt.value : this.createdAt,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatMessageData(')
+          ..write('id: $id, ')
+          ..write('channelId: $channelId, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode => Object.hash(id, channelId, content, createdAt);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is SnLocalChatMessageData &&
+          other.id == this.id &&
+          other.channelId == this.channelId &&
+          other.content == this.content &&
+          other.createdAt == this.createdAt);
+}
+
+class SnLocalChatMessageCompanion
+    extends UpdateCompanion<SnLocalChatMessageData> {
+  final Value<int> id;
+  final Value<int> channelId;
+  final Value<String> content;
+  final Value<DateTime> createdAt;
+  const SnLocalChatMessageCompanion({
+    this.id = const Value.absent(),
+    this.channelId = const Value.absent(),
+    this.content = const Value.absent(),
+    this.createdAt = const Value.absent(),
+  });
+  SnLocalChatMessageCompanion.insert({
+    this.id = const Value.absent(),
+    required int channelId,
+    required String content,
+    this.createdAt = const Value.absent(),
+  })  : channelId = Value(channelId),
+        content = Value(content);
+  static Insertable<SnLocalChatMessageData> custom({
+    Expression<int>? id,
+    Expression<int>? channelId,
+    Expression<String>? content,
+    Expression<DateTime>? createdAt,
+  }) {
+    return RawValuesInsertable({
+      if (id != null) 'id': id,
+      if (channelId != null) 'channel_id': channelId,
+      if (content != null) 'content': content,
+      if (createdAt != null) 'created_at': createdAt,
+    });
+  }
+
+  SnLocalChatMessageCompanion copyWith(
+      {Value<int>? id,
+      Value<int>? channelId,
+      Value<String>? content,
+      Value<DateTime>? createdAt}) {
+    return SnLocalChatMessageCompanion(
+      id: id ?? this.id,
+      channelId: channelId ?? this.channelId,
+      content: content ?? this.content,
+      createdAt: createdAt ?? this.createdAt,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (id.present) {
+      map['id'] = Variable<int>(id.value);
+    }
+    if (channelId.present) {
+      map['channel_id'] = Variable<int>(channelId.value);
+    }
+    if (content.present) {
+      map['content'] = Variable<String>(content.value);
+    }
+    if (createdAt.present) {
+      map['created_at'] = Variable<DateTime>(createdAt.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalChatMessageCompanion(')
+          ..write('id: $id, ')
+          ..write('channelId: $channelId, ')
+          ..write('content: $content, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+}
+
+class SnLocalKeyPair extends Table
+    with TableInfo<SnLocalKeyPair, SnLocalKeyPairData> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  SnLocalKeyPair(this.attachedDatabase, [this._alias]);
+  late final GeneratedColumn<String> id = GeneratedColumn<String>(
+      'id', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<int> accountId = GeneratedColumn<int>(
+      'account_id', aliasedName, false,
+      type: DriftSqlType.int, requiredDuringInsert: true);
+  late final GeneratedColumn<String> publicKey = GeneratedColumn<String>(
+      'public_key', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  late final GeneratedColumn<String> privateKey = GeneratedColumn<String>(
+      'private_key', aliasedName, true,
+      type: DriftSqlType.string, requiredDuringInsert: false);
+  late final GeneratedColumn<bool> isActive = GeneratedColumn<bool>(
+      'is_active', aliasedName, false,
+      type: DriftSqlType.bool,
+      requiredDuringInsert: false,
+      defaultConstraints:
+          GeneratedColumn.constraintIsAlways('CHECK ("is_active" IN (0, 1))'),
+      defaultValue: const CustomExpression('0'));
+  @override
+  List<GeneratedColumn> get $columns =>
+      [id, accountId, publicKey, privateKey, isActive];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'sn_local_key_pair';
+  @override
+  Set<GeneratedColumn> get $primaryKey => const {};
+  @override
+  SnLocalKeyPairData map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return SnLocalKeyPairData(
+      id: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}id'])!,
+      accountId: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}account_id'])!,
+      publicKey: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}public_key'])!,
+      privateKey: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}private_key']),
+      isActive: attachedDatabase.typeMapping
+          .read(DriftSqlType.bool, data['${effectivePrefix}is_active'])!,
+    );
+  }
+
+  @override
+  SnLocalKeyPair createAlias(String alias) {
+    return SnLocalKeyPair(attachedDatabase, alias);
+  }
+}
+
+class SnLocalKeyPairData extends DataClass
+    implements Insertable<SnLocalKeyPairData> {
+  final String id;
+  final int accountId;
+  final String publicKey;
+  final String? privateKey;
+  final bool isActive;
+  const SnLocalKeyPairData(
+      {required this.id,
+      required this.accountId,
+      required this.publicKey,
+      this.privateKey,
+      required this.isActive});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['id'] = Variable<String>(id);
+    map['account_id'] = Variable<int>(accountId);
+    map['public_key'] = Variable<String>(publicKey);
+    if (!nullToAbsent || privateKey != null) {
+      map['private_key'] = Variable<String>(privateKey);
+    }
+    map['is_active'] = Variable<bool>(isActive);
+    return map;
+  }
+
+  SnLocalKeyPairCompanion toCompanion(bool nullToAbsent) {
+    return SnLocalKeyPairCompanion(
+      id: Value(id),
+      accountId: Value(accountId),
+      publicKey: Value(publicKey),
+      privateKey: privateKey == null && nullToAbsent
+          ? const Value.absent()
+          : Value(privateKey),
+      isActive: Value(isActive),
+    );
+  }
+
+  factory SnLocalKeyPairData.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return SnLocalKeyPairData(
+      id: serializer.fromJson<String>(json['id']),
+      accountId: serializer.fromJson<int>(json['accountId']),
+      publicKey: serializer.fromJson<String>(json['publicKey']),
+      privateKey: serializer.fromJson<String?>(json['privateKey']),
+      isActive: serializer.fromJson<bool>(json['isActive']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'id': serializer.toJson<String>(id),
+      'accountId': serializer.toJson<int>(accountId),
+      'publicKey': serializer.toJson<String>(publicKey),
+      'privateKey': serializer.toJson<String?>(privateKey),
+      'isActive': serializer.toJson<bool>(isActive),
+    };
+  }
+
+  SnLocalKeyPairData copyWith(
+          {String? id,
+          int? accountId,
+          String? publicKey,
+          Value<String?> privateKey = const Value.absent(),
+          bool? isActive}) =>
+      SnLocalKeyPairData(
+        id: id ?? this.id,
+        accountId: accountId ?? this.accountId,
+        publicKey: publicKey ?? this.publicKey,
+        privateKey: privateKey.present ? privateKey.value : this.privateKey,
+        isActive: isActive ?? this.isActive,
+      );
+  SnLocalKeyPairData copyWithCompanion(SnLocalKeyPairCompanion data) {
+    return SnLocalKeyPairData(
+      id: data.id.present ? data.id.value : this.id,
+      accountId: data.accountId.present ? data.accountId.value : this.accountId,
+      publicKey: data.publicKey.present ? data.publicKey.value : this.publicKey,
+      privateKey:
+          data.privateKey.present ? data.privateKey.value : this.privateKey,
+      isActive: data.isActive.present ? data.isActive.value : this.isActive,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalKeyPairData(')
+          ..write('id: $id, ')
+          ..write('accountId: $accountId, ')
+          ..write('publicKey: $publicKey, ')
+          ..write('privateKey: $privateKey, ')
+          ..write('isActive: $isActive')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(id, accountId, publicKey, privateKey, isActive);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is SnLocalKeyPairData &&
+          other.id == this.id &&
+          other.accountId == this.accountId &&
+          other.publicKey == this.publicKey &&
+          other.privateKey == this.privateKey &&
+          other.isActive == this.isActive);
+}
+
+class SnLocalKeyPairCompanion extends UpdateCompanion<SnLocalKeyPairData> {
+  final Value<String> id;
+  final Value<int> accountId;
+  final Value<String> publicKey;
+  final Value<String?> privateKey;
+  final Value<bool> isActive;
+  final Value<int> rowid;
+  const SnLocalKeyPairCompanion({
+    this.id = const Value.absent(),
+    this.accountId = const Value.absent(),
+    this.publicKey = const Value.absent(),
+    this.privateKey = const Value.absent(),
+    this.isActive = const Value.absent(),
+    this.rowid = const Value.absent(),
+  });
+  SnLocalKeyPairCompanion.insert({
+    required String id,
+    required int accountId,
+    required String publicKey,
+    this.privateKey = const Value.absent(),
+    this.isActive = const Value.absent(),
+    this.rowid = const Value.absent(),
+  })  : id = Value(id),
+        accountId = Value(accountId),
+        publicKey = Value(publicKey);
+  static Insertable<SnLocalKeyPairData> custom({
+    Expression<String>? id,
+    Expression<int>? accountId,
+    Expression<String>? publicKey,
+    Expression<String>? privateKey,
+    Expression<bool>? isActive,
+    Expression<int>? rowid,
+  }) {
+    return RawValuesInsertable({
+      if (id != null) 'id': id,
+      if (accountId != null) 'account_id': accountId,
+      if (publicKey != null) 'public_key': publicKey,
+      if (privateKey != null) 'private_key': privateKey,
+      if (isActive != null) 'is_active': isActive,
+      if (rowid != null) 'rowid': rowid,
+    });
+  }
+
+  SnLocalKeyPairCompanion copyWith(
+      {Value<String>? id,
+      Value<int>? accountId,
+      Value<String>? publicKey,
+      Value<String?>? privateKey,
+      Value<bool>? isActive,
+      Value<int>? rowid}) {
+    return SnLocalKeyPairCompanion(
+      id: id ?? this.id,
+      accountId: accountId ?? this.accountId,
+      publicKey: publicKey ?? this.publicKey,
+      privateKey: privateKey ?? this.privateKey,
+      isActive: isActive ?? this.isActive,
+      rowid: rowid ?? this.rowid,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (id.present) {
+      map['id'] = Variable<String>(id.value);
+    }
+    if (accountId.present) {
+      map['account_id'] = Variable<int>(accountId.value);
+    }
+    if (publicKey.present) {
+      map['public_key'] = Variable<String>(publicKey.value);
+    }
+    if (privateKey.present) {
+      map['private_key'] = Variable<String>(privateKey.value);
+    }
+    if (isActive.present) {
+      map['is_active'] = Variable<bool>(isActive.value);
+    }
+    if (rowid.present) {
+      map['rowid'] = Variable<int>(rowid.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('SnLocalKeyPairCompanion(')
+          ..write('id: $id, ')
+          ..write('accountId: $accountId, ')
+          ..write('publicKey: $publicKey, ')
+          ..write('privateKey: $privateKey, ')
+          ..write('isActive: $isActive, ')
+          ..write('rowid: $rowid')
+          ..write(')'))
+        .toString();
+  }
+}
+
+class DatabaseAtV2 extends GeneratedDatabase {
+  DatabaseAtV2(QueryExecutor e) : super(e);
+  late final SnLocalChatChannel snLocalChatChannel = SnLocalChatChannel(this);
+  late final SnLocalChatMessage snLocalChatMessage = SnLocalChatMessage(this);
+  late final SnLocalKeyPair snLocalKeyPair = SnLocalKeyPair(this);
+  @override
+  Iterable<TableInfo<Table, Object?>> get allTables =>
+      allSchemaEntities.whereType<TableInfo<Table, Object?>>();
+  @override
+  List<DatabaseSchemaEntity> get allSchemaEntities =>
+      [snLocalChatChannel, snLocalChatMessage, snLocalKeyPair];
+  @override
+  int get schemaVersion => 2;
+}

test/drift/my_database/migration_test.dart

@@ -0,0 +1,75 @@
+// dart format width=80
+// ignore_for_file: unused_local_variable, unused_import
+import 'package:drift/drift.dart';
+import 'package:drift_dev/api/migrations_native.dart';
+import 'package:surface/database/database.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'generated/schema.dart';
+
+import 'generated/schema_v1.dart' as v1;
+import 'generated/schema_v2.dart' as v2;
+
+void main() {
+  driftRuntimeOptions.dontWarnAboutMultipleDatabases = true;
+  late SchemaVerifier verifier;
+
+  setUpAll(() {
+    verifier = SchemaVerifier(GeneratedHelper());
+  });
+
+  group('simple database migrations', () {
+    // These simple tests verify all possible schema updates with a simple (no
+    // data) migration. This is a quick way to ensure that written database
+    // migrations properly alter the schema.
+    const versions = GeneratedHelper.versions;
+    for (final (i, fromVersion) in versions.indexed) {
+      group('from $fromVersion', () {
+        for (final toVersion in versions.skip(i + 1)) {
+          test('to $toVersion', () async {
+            final schema = await verifier.schemaAt(fromVersion);
+            final db = AppDatabase(schema.newConnection());
+            await verifier.migrateAndValidate(db, toVersion);
+            await db.close();
+          });
+        }
+      });
+    }
+  });
+
+  // The following template shows how to write tests ensuring your migrations
+  // preserve existing data.
+  // Testing this can be useful for migrations that change existing columns
+  // (e.g. by alterating their type or constraints). Migrations that only add
+  // tables or columns typically don't need these advanced tests. For more
+  // information, see https://drift.simonbinder.eu/migrations/tests/#verifying-data-integrity
+  // TODO: This generated template shows how these tests could be written. Adopt
+  // it to your own needs when testing migrations with data integrity.
+  test('migration from v1 to v2 does not corrupt data', () async {
+    // Add data to insert into the old database, and the expected rows after the
+    // migration.
+    // TODO: Fill these lists
+    final oldSnLocalChatChannelData = <v1.SnLocalChatChannelData>[];
+    final expectedNewSnLocalChatChannelData = <v2.SnLocalChatChannelData>[];
+
+    final oldSnLocalChatMessageData = <v1.SnLocalChatMessageData>[];
+    final expectedNewSnLocalChatMessageData = <v2.SnLocalChatMessageData>[];
+
+    await verifier.testWithDataIntegrity(
+      oldVersion: 1,
+      newVersion: 2,
+      createOld: v1.DatabaseAtV1.new,
+      createNew: v2.DatabaseAtV2.new,
+      openTestedDatabase: AppDatabase.new,
+      createItems: (batch, oldDb) {
+        batch.insertAll(oldDb.snLocalChatChannel, oldSnLocalChatChannelData);
+        batch.insertAll(oldDb.snLocalChatMessage, oldSnLocalChatMessageData);
+      },
+      validateItems: (newDb) async {
+        expect(expectedNewSnLocalChatChannelData,
+            await newDb.select(newDb.snLocalChatChannel).get());
+        expect(expectedNewSnLocalChatMessageData,
+            await newDb.select(newDb.snLocalChatMessage).get());
+      },
+    );
+  });
+}

windows/flutter/generated_plugin_registrant.cc

@@ -8,6 +8,7 @@
 
 #include <bitsdojo_window_windows/bitsdojo_window_plugin.h>
 #include <connectivity_plus/connectivity_plus_windows_plugin.h>
+#include <fast_rsa/fast_rsa_plugin.h>
 #include <file_saver/file_saver_plugin.h>
 #include <file_selector_windows/file_selector_windows.h>
 #include <firebase_core/firebase_core_plugin_c_api.h>
@@ -35,6 +36,8 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("BitsdojoWindowPlugin"));
   ConnectivityPlusWindowsPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("ConnectivityPlusWindowsPlugin"));
+  FastRsaPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FastRsaPlugin"));
   FileSaverPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FileSaverPlugin"));
   FileSelectorWindowsRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -5,6 +5,7 @@
 list(APPEND FLUTTER_PLUGIN_LIST
   bitsdojo_window_windows
   connectivity_plus
+  fast_rsa
   file_saver
   file_selector_windows
   firebase_core