using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Security.Cryptography;
using System.IO;
namespace Hcryptor
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
Control.CheckForIllegalCrossThreadCalls = false;
}
private void Form1_Load(object sender, EventArgs e)
{
notifyIcon1.ShowBalloonTip(999, "Welcome to use Hcryptor", "Written by henry217",ToolTipIcon.None);
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if(checkBox1.Checked)
{
checkBox2.Checked = false;
}
}
private void checkBox2_CheckedChanged(object sender, EventArgs e)
{
if(checkBox2.Checked)
{
checkBox1.Checked = false;
}
}
/**************************functions*****************************/
public static byte[] AESEncrypt(byte[] Data, string Key, string Vector)
{
byte[] bKey = new byte[32];//采用32位密码加密
Array.Copy(Encoding.UTF8.GetBytes(Key.PadRight(bKey.Length)), bKey, bKey.Length);//如果用户输入的密码不足32位，自动填充空格至32位
byte[] bVector = new byte[16];//密钥向量，为16位
Array.Copy(Encoding.UTF8.GetBytes(Vector.PadRight(bVector.Length)), bVector, bVector.Length);//如果用户定义的密钥向量不足16位，自动填充空格至16位
byte[] Cryptograph = null;//加密后的密文
Rijndael Aes = Rijndael.Create();
try
{
using (MemoryStream Memory = new MemoryStream())
{
//把内存流对象包装成加密流对象
using (CryptoStream Encryptor = new CryptoStream(Memory, Aes.CreateEncryptor(bKey, bVector), CryptoStreamMode.Write))
{
Encryptor.Write(Data, 0, Data.Length);
Encryptor.FlushFinalBlock();
Cryptograph = Memory.ToArray();
}
}
}
catch
{
Cryptograph = null;
}
return Cryptograph;
}
public static byte[] AESDecrypt(byte[] Data, string Key, string Vector)
{
byte[] bKey = new byte[32];
Array.Copy(Encoding.UTF8.GetBytes(Key.PadRight(bKey.Length)), bKey, bKey.Length);
byte[] bVector = new byte[16];
Array.Copy(Encoding.UTF8.GetBytes(Vector.PadRight(bVector.Length)), bVector, bVector.Length);
byte[] original = null;//解密后的明文
Rijndael Aes = Rijndael.Create();
try
{
using (MemoryStream Memory = new MemoryStream(Data))
{
//把内存流对象包装成加密对象
using (CryptoStream Decryptor = new CryptoStream(Memory, Aes.CreateDecryptor(bKey, bVector), CryptoStreamMode.Read))
{
//明文存储区
using (MemoryStream originalMemory = new MemoryStream())
{
byte[] Buffer = new byte[1024];
int readBytes = 0;
while ((readBytes = Decryptor.Read(Buffer, 0, Buffer.Length)) > 0)
{
originalMemory.Write(Buffer, 0, readBytes);
}
original = originalMemory.ToArray();
}
}
}
}
catch
{
original = null;
}
return original;
}
private void button1_Click(object sender, EventArgs e)
{
openFileDialog1.ShowDialog();
foreach (string path in openFileDialog1.FileNames)
{
if(File.Exists(path))
{
richTextBox1.Text = richTextBox1.Text+ path + "\n" ;
}
}
}
private void button2_Click(object sender, EventArgs e)
{
backgroundWorker1.CancelAsync();
if(checkBox1.Checked==false&&checkBox2.Checked==false)
{
notifyIcon1.ShowBalloonTip(999, "Warning", "You should select what to do!", ToolTipIcon.Warning);
return;
}
if(richTextBox1.Text=="")
{
notifyIcon1.ShowBalloonTip(999, "Warning", "You should choose files to perform!", ToolTipIcon.Warning);
return;
}
if(textBox1.Text=="")
{
notifyIcon1.ShowBalloonTip(999, "Warning", "You should enter the password!", ToolTipIcon.Warning);
return;
}
if (textBox2.Text == ""&&checkBox1.Checked==true)
{
notifyIcon1.ShowBalloonTip(999, "Warning", "You should enter the extension of the encrypted files!", ToolTipIcon.Warning);
return;
}
progressBar1.Style = ProgressBarStyle.Marquee;
backgroundWorker1.RunWorkerAsync();
progressBar1.Style = ProgressBarStyle.Blocks;
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
foreach(string path in richTextBox1.Lines)
{
//MessageBox.Show(path);
if(File.Exists(path))
{
try
{
byte[] os= FileContent(path),ns;
if(checkBox1.Checked==true)
{
//加密
ns = AESEncrypt(os, textBox1.Text, textBox1.Text);
FileStream fs = new FileStream(path + "." + textBox2.Text, FileMode.Create, FileAccess.Write);
fs.Write(ns, 0, ns.Length);
fs.Close();
File.Delete(path);
progressBar1.Style = ProgressBarStyle.Blocks;
richTextBox1.Text = "";
notifyIcon1.ShowBalloonTip(999, "Info", "Done", ToolTipIcon.Info);
}
else
{
ns = AESDecrypt(os, textBox1.Text, textBox1.Text);
FileInfo fi = new FileInfo(path);
string np =fi.DirectoryName+Path.GetFileNameWithoutExtension(path);
FileStream wi = new FileStream(np, FileMode.Create, FileAccess.Write);
wi.Write(ns, 0, ns.Length);
wi.Close();
progressBar1.Style = ProgressBarStyle.Blocks;
richTextBox1.Text = "";
notifyIcon1.ShowBalloonTip(999, "Info", "Done", ToolTipIcon.Info);
}
}
catch(Exception)
{
notifyIcon1.ShowBalloonTip(999, "Error", "Something went wrong!", ToolTipIcon.Error);
}
}
else
{
if(path!="")
notifyIcon1.ShowBalloonTip(999, "Error", path + " doesn't exist",ToolTipIcon.Error);
continue;
}
}
}
private byte[] FileContent(string fileName)
{
using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
try
{
byte[] buffur = new byte[fs.Length];
fs.Read(buffur, 0, (int)fs.Length);
fs.Close();
return buffur;
}
catch (Exception ex)
{
throw ex;
}
}
}
private void button3_Click(object sender, EventArgs e)
{
checkBox1.Checked = false;
checkBox2.Checked = false;
textBox1.Text = "";
textBox2.Text = "";
richTextBox1.Text = "";
}
}
}
