monorepo/dialer/lib/features/settings/key/key_storage.dart

// key_storage.dart

import 'package:flutter_secure_storage/flutter_secure_storage.dart';

class KeyStorage {
  static const _publicKeyKey = 'public_key';
  static const _privateKeyKey = 'private_key';

  final FlutterSecureStorage _storage = const FlutterSecureStorage();

  Future<void> saveKeys({required String publicKey, required String privateKey}) async {
    await _storage.write(key: _publicKeyKey, value: publicKey);
    await _storage.write(key: _privateKeyKey, value: privateKey);
  }

  Future<String?> getPublicKey() async {
    return await _storage.read(key: _publicKeyKey);
  }

  Future<String?> getPrivateKey() async {
    return await _storage.read(key: _privateKeyKey);
  }

  Future<void> deleteKeys() async {
    await _storage.delete(key: _publicKeyKey);
    await _storage.delete(key: _privateKeyKey);
  }
}