【问题标题】:Application halts during/after encryption/serialisation应用程序在加密/序列化期间/之后停止
【发布时间】:2016-04-21 20:25:57
【问题描述】:

我找到了一种加密和序列化/反序列化对象的方法

C# Encrypt serialized file before writing to disk

这是我的代码...

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization.Formatters.Binary;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Digital_Only_Calculator
{
    class EncryptionSerialiser
    {

        byte[] key = { 1, 2, 3, 4, 5, 6, 7, 8 }; // Where to store these keys is the tricky part, 
                                                 // you may need to obfuscate them or get the user to input a password each time
        byte[] iv = { 1, 2, 3, 4, 5, 6, 7, 8 };
        string path = Application.StartupPath + @"\" + "test.ser";
        DESCryptoServiceProvider des = new DESCryptoServiceProvider();



        public void EncryptThenSerialise(object obj)
        {

            // Encryption
            using (var fs = new FileStream(path, FileMode.Create, FileAccess.Write))
            using (var cryptoStream = new CryptoStream(fs, des.CreateEncryptor(key, iv), CryptoStreamMode.Write))
            {
                BinaryFormatter formatter = new BinaryFormatter();

                // This is where you serialize the class
                formatter.Serialize(cryptoStream, obj);

            }
        }
public Person DecryptThenSerialise(object obj)
        {
            // Decryption
            using (var fs = new FileStream(path, FileMode.Open, FileAccess.Read))
            using (var cryptoStream = new CryptoStream(fs, des.CreateDecryptor(key, iv), CryptoStreamMode.Read))
            {
                BinaryFormatter formatter = new BinaryFormatter();

                // This is where you deserialize the class
                Person deserialized = (Person)formatter.Deserialize(cryptoStream);

                return deserialized;
            }
        }
  }
}

还有用于测试的代码……

Person p = new Person();

            p.Name = "Bill";
            p.Age = 40;


            EncryptionSerialiser ESER = new EncryptionSerialiser();
            ESER.EncryptThenSerialise(p);

            Person p2 = new Person();

            p2 = ESER.DecryptThenSerialise(p2);

问题是,应用程序在此行之后无法继续(您可以在上面的 EncryptThenSerialise 方法中看到。

formatter.Serialize(cryptoStream, obj);

人物类...

 public class Person
    {
        public String Name { get; set; }
        public int Age { get; set; }
    }

然而,它似乎对对象进行了加密和序列化,因为创建了一个新文件,打开时看起来是加密的。它只是不会继续执行反序列化。

任何想法任何人?

【问题讨论】:

  • "应用程序在这一行之后没有继续" 是挂起还是崩溃?
  • 它似乎“中断”了,即退出该方法并允许用户使用控件表单等。所以它几乎就像它“认为”它已经完成但它没有。

标签: c# winforms serialization


【解决方案1】:

我在我的 Person 类中添加了 [Serializable] 属性。现在一切正常。

 [Serializable]
    public class Person
    {
        public String Name { get; set; }
        public int Age { get; set; }
    } 

【讨论】:

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