smutil数据加密

引入依赖

 >
            >cn.hutool>
            >hutool-crypto>
            >5.8.21>
        >
        >
            >org.bouncycastle>
            >bcprov-jdk15on>
            >1.70>
        >
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map加密解密 list加密解密 Set> 加密解密呀

 public static void main(String[] args) {
      /*  Map map = new HashMap<>();
        map.put("key","qwrw");
        String o =  JSON.toJSONString(map);

        SM4 sm4 = SmUtil.sm4("0123456789ABCDEF".getBytes());
        String str = sm4.encryptHex(o);
        System.out.println("加密后："+str);
        String s = sm4.decryptStr("解密后："+str);
        System.out.println(s);*/

        // 创建一个包含 Map 对象的 Set 集合
       /* Set> dataSet = new HashSet<>();
        Map map1 = new HashMap<>();
        map1.put("name", "Alice");
        map1.put("age", 25);
        dataSet.add(map1);

        Map map2 = new HashMap<>();
        map2.put("name", "Bob");
        map2.put("age", 30);
        dataSet.add(map2);

        // 将 Set> 转换为字节数组
        byte[] data;
        try (
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                ObjectOutput out = new ObjectOutputStream(bos)
        ) {
            out.writeObject(dataSet);
            data = bos.toByteArray();
        } catch (IOException e) {
            e.printStackTrace();
            return;
        }

        // 使用 SM4 算法对字节数组进行加密
        SM4 sm41 = SmUtil.sm4("0123456789ABCDEF".getBytes());
        String encrypted = sm41.encryptHex(data);

        System.out.println("Encrypted text: " + encrypted);
        // 使用 SM4 算法对密文进行解密
        byte[] decryptedData;
        try {
            SM4 sm42 = SmUtil.sm4("0123456789ABCDEF".getBytes());
            decryptedData = sm42.decrypt(HexUtil.decodeHex(encrypted));
        } catch (Exception e) {
            e.printStackTrace();
            return;
        }

        // 将解密后的字节数组转换为 Set> 集合
        Set> decryptedSet;
        try (
                ByteArrayInputStream bis = new ByteArrayInputStream(decryptedData);
                ObjectInput in = new ObjectInputStream(bis)
        ) {
            decryptedSet = (Set>) in.readObject();
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
            return;
        }

        // 输出解密后的集合内容
        for (Map map : decryptedSet) {
            System.out.println("Name: " + map.get("name") + ", Age: " + map.get("age"));
        }
*/


       /* // 创建一个示例的 List 集合
        List list = new ArrayList<>();
        User user = new User();
        user.setName("请教的");
        user.setAge("123");
        User user1 = new User();
        user1.setName("第二个");
        user1.setAge("28");
        list.add(user);
        list.add(user1);

        // 将 List 转换为字节数组
        byte[] data;
        try (
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                ObjectOutput out = new ObjectOutputStream(bos)
        ) {
            out.writeObject(list);
            data = bos.toByteArray();
        } catch (IOException e) {
            e.printStackTrace();
            return;
        }

        // 使用 SM4 算法对字节数组进行加密
        SM4 sm43 = SmUtil.sm4("0123456789ABCDEF".getBytes());
        String encrypted = sm43.encryptHex(data);

        System.out.println("Encrypted text: " + encrypted);

        // 使用 SM4 算法对密文进行解密
        byte[] decryptedData;
        try {
            SM4 sm44 = SmUtil.sm4("0123456789ABCDEF".getBytes());
            decryptedData = sm44.decrypt(HexUtil.decodeHex(encrypted));
        } catch (Exception e) {
            e.printStackTrace();
            return;
        }

        // 将解密后的字节数组转换为原始的 List 集合
        List decryptedList;
        try (
                ByteArrayInputStream bis = new ByteArrayInputStream(decryptedData);
                ObjectInput in = new ObjectInputStream(bis)
        ) {
            decryptedList = (List) in.readObject();
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
            return;
        }

        // 输出解密后的集合内容
        for (User users : decryptedList) {
            System.out.println("Name: " + users.getName() + ", Age: " + users.getAge());
        }*/
    }

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