43 lines
1.3 KiB
Dart
43 lines
1.3 KiB
Dart
import 'package:encrypt/encrypt.dart';
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import 'package:pointycastle/asymmetric/api.dart';
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import 'package:dio/dio.dart';
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import '../network/dio_client.dart';
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class CryptoService {
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static final CryptoService _instance = CryptoService._internal();
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factory CryptoService() => _instance;
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CryptoService._internal();
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RSAPublicKey? _publicKey;
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Future<void> fetchPublicKey() async {
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try {
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final dio = Dio(BaseOptions(
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baseUrl: DioClient().dio.options.baseUrl,
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connectTimeout: const Duration(seconds: 10),
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receiveTimeout: const Duration(seconds: 10),
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));
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final response = await dio.get('/auth/public-key');
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final publicKeyBase64 = response.data['publicKey'] as String;
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_publicKey = RSAKeyParser().parse('-----BEGIN PUBLIC KEY-----\n$publicKeyBase64\n-----END PUBLIC KEY-----') as RSAPublicKey;
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} catch (e) {
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throw Exception('Failed to fetch public key: $e');
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}
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}
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String encrypt(String plainText) {
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if (_publicKey == null) {
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throw Exception('Public key not initialized. Call fetchPublicKey() first.');
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}
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final encrypter = Encrypter(RSA(publicKey: _publicKey));
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final encrypted = encrypter.encrypt(plainText);
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return encrypted.base64;
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}
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bool get isInitialized => _publicKey != null;
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void clearKey() {
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_publicKey = null;
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}
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}
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