少し長めで申し訳ありませんが、そのまま書き込みました。よろしくお願いします。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Security.AccessControl;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
try
{
string FileName = "test.dat";
Console.WriteLine("Enceypt " + FileName);
// Encrypt the file.
AddEncryption(FileName);
Console.WriteLine("Decrypt " + FileName);
// Decrypt the file.
RemoveEncryption(FileName);
Console.WriteLine("Done");
}
catch (Exception ex)
{
Console.WriteLine(ex);
MessageBox.Show(ex.Message, "");
}
Console.ReadLine();
MessageBox.Show("End", "");
}
public static void AddEncryption(string FileName)
{
// Create a new FileInfo object.
FileInfo fInfo = new FileInfo(FileName);
// Add encryption.
fInfo.Encrypt();
}
public static void RemoveEncryption(string FileName)
{
// Create a new FileInfo object.
FileInfo fInfo = new FileInfo(FileName);
// Remove encryption.
fInfo.Decrypt();
}
}
}
