如何在flutter/darts中实现加密(3des)

dependencies:
  crypto: ^3.0.1

import 'package:crypto/crypto.dart';
import 'dart:convert';

String encrypt3DES(String data, String key) {
  // 将密钥转为字节数组
  List<int> keyBytes = utf8.encode(key);

  // 创建一个加密器，设置密钥和模式
  DESedeBlockCipher cipher = DESedeBlockCipher("ECB");
  KeyParameter keyParam = KeyParameter(keyBytes);
  ParametersWithIV<KeyParameter> params = ParametersWithIV(keyParam, null);

  // 初始化加密器并进行加密操作
  cipher.init(true, params);
  Uint8List encrypted = cipher.process(utf8.encode(data));

  // 返回加密后的结果
  return base64.encode(encrypted);
}

void main() {
  String data = "Hello World";
  String key = "123456789012345678901234";

  String encryptedData = encrypt3DES(data, key);
  print("加密后的数据：$encryptedData");
}