Question

我正在尝试创建许可证文件，我需要加密。

我有License个对象和List<License>licenses。我需要在将流保存到xml文件之前加密流，以便无法轻松读取。

我找到了这篇文章：MSDN Code: Writing Class Data to an XML File (Visual C#)

public class Book
{
   public string title;

   static void Main()
   {
      Book introToVCS = new Book();
      introToVCS.title = "Intro to Visual CSharp";
      System.Xml.Serialization.XmlSerializer writer = 
         new System.Xml.Serialization.XmlSerializer(introToVCS.GetType());
      System.IO.StreamWriter file =
         new System.IO.StreamWriter("c:\\IntroToVCS.xml");

      writer.Serialize(file, introToVCS);
      file.Close();
   }
}

这篇文章：CodeProject: Using CryptoStream in C#

编写xml文件：

FileStream stream = new FileStream(�C:\\test.txt�, 
         FileMode.OpenOrCreate,FileAccess.Write);

DESCryptoServiceProvider cryptic = new DESCryptoServiceProvider();

cryptic.Key = ASCIIEncoding.ASCII.GetBytes(�ABCDEFGH�);
cryptic.IV = ASCIIEncoding.ASCII.GetBytes(�ABCDEFGH�);

CryptoStream crStream = new CryptoStream(stream,
   cryptic.CreateEncryptor(),CryptoStreamMode.Write);


byte[] data = ASCIIEncoding.ASCII.GetBytes(�Hello World!�);

crStream.Write(data,0,data.Length);

crStream.Close();
stream.Close();

读取xml文件：

FileStream stream = new FileStream(�C:\\test.txt�, 
                              FileMode.Open,FileAccess.Read);

DESCryptoServiceProvider cryptic = new DESCryptoServiceProvider();

cryptic.Key = ASCIIEncoding.ASCII.GetBytes(�ABCDEFGH�);
cryptic.IV = ASCIIEncoding.ASCII.GetBytes(�ABCDEFGH�);

CryptoStream crStream = new CryptoStream(stream,
    cryptic.CreateDecryptor(),CryptoStreamMode.Read);

StreamReader reader = new StreamReader(crStream);

string data = reader.ReadToEnd();

reader.Close();
stream.Close();

我很难将这两者结合起来。任何人都可以帮助我吗？

Answer 1

实际上，您应该考虑使用EncryptedXml类。您可以加密XML内容，而不是加密XML本身。

加密可能需要不同的加密强度，密钥库等方法。请遵循MSDN文档中的示例。这不是一个简短的实现，但它运作良好。

C＃将对象加密为XML文件

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