import 'dart:convert'; import 'dart:math'; import 'package:flutter_secure_storage/flutter_secure_storage.dart'; import 'package:niogu_app/core/constants/app_key.dart'; class SecurityKeyManager { static const _storage = FlutterSecureStorage(); static Future getOrCreateDatabaseKey() async { final existing = await _storage.read(key: AppKey.DATABASE_ENCRYPTION); if (existing == null) { final random = Random.secure(); final values = List.generate(32, (i) => random.nextInt(256)); await _storage.write( key: AppKey.DATABASE_ENCRYPTION, value: base64Url.encode(values), ); } } }