加密XML属性值和元素？

Question

我正在使用C＃Application。我的XML文件中有两个敏感数据，即用户名和密码。

I want to:

登录时加密和解密用户名和密码，保存文件并加载xml。任何人都可以帮助我吗？

xml文件是

<Users>
  <user username="kelil2000">
    <password>123</password>
    <author>Home Owner</author>
    <name>Kelil</name>
    <mobile>0911</mobile>
  </user>
  <user username="usminuru">
    <password>1234</password>
    <author>Home Owner</author>
    <name>Ismail K.</name>
    <mobile>0910178976</mobile>
  </user>
 </Users>

登录：

 if (txtUserName.Text == "" || txtPassword.Text == "")
            {
                MessageBox.Show("Username or Passowrd field is empty, try again!");
                ClearTextBoxes();
                return;
            }

            int i = 0; // we use this variable to count if ther’s a user with this name

            XmlDocument myXml=new XmlDocument();

            myXml.Load(Application.StartupPath + "/AppUsers/Users.xml");            

            XmlNodeList userList = myXml.SelectNodes("Users/user");

            foreach(XmlNode user in userList)

            {

                string userName = user.Attributes["username"].Value;

                string userPassword = user["password"].InnerText;

                string userAuthor = user["author"].InnerText;

                if (userName == txtUserName.Text)

                {

                    ++i;

                    if (userPassword == txtPassword.Text)

                    {

                        Form panel;

                        this.Opacity = 0;

                        switch(userAuthor)

                        {   

                            case "Home Owner":

                                panel = new MainWindow();

                                panel.Show();

                                break;

                            case "Member" :

                                panel = new Report();

                                panel.Show();

                                break;


                        }


                    }

                    else

                    {

                        MessageBox.Show("Wrong Password!");
                        ClearTextBoxes();

                    }

                }

              }

            if (i == 0)

                MessageBox.Show("No specified user with this name!");
            ClearTextBoxes();
        }

保存xml：

 private void AddUser()
        {
            if (txtUserName.Text == "" || txtPassword.Text == "" || cmbAuthor.Text == "" || txtName.Text == "" || txtMobile.Text == "")
            {
                MessageBox.Show("Filed is empty");
                return;
            }
            try
            {
                string _file = (Application.StartupPath + "/AppUsers/Users.xml");
                XDocument doc;

                if (!File.Exists(_file))
                {
                    doc = new XDocument();
                    doc.Add(new XElement("Users"));
                }
                else
                {
                    doc = XDocument.Load(_file);
                }

                doc.Root.Add(
                      new XElement("user",
                                   new XAttribute("username", txtUserName.Text),
                                   new XElement("password", txtPassword.Text),
                                   new XElement("author", cmbAuthor.Text),
                                   new XElement("name", txtName.Text),
                                   new XElement("mobile", txtMobile.Text)
                            )
                      );
                doc.Save(_file);

            }
            catch (Exception ex)
            {
                MessageBox.Show("Something Wrong!" + ex.ToString());
            }
        }

加载XML文件

private void loadXmlData()
        {

            listView1.Items.Clear();
            XDocument doc = XDocument.Load(Application.StartupPath + "/AppUsers/Users.xml");
            doc.Descendants("user").ToList()
   .ForEach(x => listView1.Items.Add(
                 new ListViewItem(
                 new string[] { 
                                 x.Attribute("username").Value,
                                 x.Element("password").Value, 
                                 x.Element("author").Value,  
                                  x.Element("name").Value,
                                 x.Element("mobile").Value}))
           );



        }

Answer 1

首先，您需要选择要使用的加密方式以及保存密钥的位置。完成后，您需要对正在写入/读取XML文件的值运行加密/解密方法。