import 'package:encrypt/encrypt.dart';
import 'package:encrypt/encrypt_io.dart';
import 'dart:io';
import 'package:pointycastle/asymmetric/api.dart';
import 'dart:async';
import 'package:flutter/services.dart' show rootBundle;
class Encrypt {
Future<String> loadPrivateKey() async {
return await rootBundle.loadString('assets/private_key.pem');
}
Future<String> loadPublicKey() async {
return await rootBundle.loadString('assets/public_key.pem');
}
encryptString() async {
print(loadPublicKey().toString());
final publicKey =
await parseKeyFromFile<RSAPublicKey>('${loadPublicKey()}');
final privateKey =
await parseKeyFromFile<RSAPrivateKey>('${loadPrivateKey()}');
final plainText = 'James Bond';
final encrypter =
Encrypter(RSA(publicKey: publicKey, privateKey: privateKey));
final encrypted = encrypter.encrypt(plainText);
final decrypted = encrypter.decrypt(encrypted);
print(decrypted);
print(encrypted.base64);
}
}
错误:正在执行热装...正在将文件同步到IA仿真器上的设备AOSP ...在1,021毫秒内重新加载707个库中的8个。I / flutter(7395):“未来”的实例E / flutter(7395):[ERROR:flutter / lib / ui / ui_dart_state.cc(157)]未处理的异常:FileSystemException:无法打开文件,路径=“ Future的实例”(操作系统错误:没有此类文件或目录,errno = 2)
我确实在yaml文件中添加资产为:
flutter:
assets:
- assets/
parseKeyFromFile
是一种便利功能,用于读取文件并解析内容。您没有文件,您有资产已经在做读取字符串的工作。读取文件后,它仅对其进行解析-这就是您所需要的。
这应该起作用:
final publicPem = await rootBundle.loadString('assets/public_key.pem');
final publicKey = RSAKeyParser().parse(publicPem) as RSAPublicKey;
和私钥类似。