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;
using?System.Drawing.Imaging;

namespace?WindowsFormsApplication2
{
???
????public?partial?class?Form1?:?Form


????{
????????private?long?_maxInfoSize?=?0;
????????string?sFileIn?sFileOut;
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
???????????
????????}

????????private?void?textBox2_TextChanged（object?sender?EventArgs?e）
????????{

????????}

????????private?void?textBox1_TextChanged（object?sender?EventArgs?e）
????????{

????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{

????????????sFileIn?=?this.textBox1.Text;
????????????sFileOut?=?this.textBox2.Text;
????????????TripleDES_?rsa1?=?new?TripleDES_（“destroyer）（*&^%$#@!“）;

????????????if?（this.radioButton1.Checked）
????????????{
????????????????rsa1.Encrypt（sFileIn?sFileOut）;
????????????}
????????????else
????????????{
????????????????rsa1.Decrypt（sFileIn?sFileOut）;
????????????}
????????????this.textBox3.Text?=?“OK!“;




????????}

????????private?void?label1_Click（object?sender?EventArgs?e）
????????{

????????}

???????

????????private?void?textBox3_TextChanged（object?sender?EventArgs?e）
????????{

????????}

????????private?void?tabPage1_Click（object?sender?EventArgs?e）
????????{

????????}

????????private?void?button3_Click（object?sender?EventArgs?e）
????????{
????????????OpenFileDialog?filedlg?=?new?OpenFileDialog（）;
????????????filedlg.Filter?=?“24位位圖?（*.bmp）|*.bmp“;
????????????if?（filedlg.ShowDialog（）?==?DialogResult.OK）
????????????{
????????????????FileStream?fs?=?new?FileStream（filedlg.FileName?FileMode.Open?FileAccess.Read）;
????????????????using?（Bitmap?bmp?=?new?Bitmap（fs））
????????????????{
????????????????????if?（bmp.PixelFormat?!=?PixelFormat.Format24bppRgb）
????????????????????{
????????????????????????MessageBox.Show（“選擇的圖片并不是24位位圖！“?“LSB“
????????????????????????????????????????MessageBoxButtons.OK?MessageBoxIcon.Information）;
????????????????????}
????????????????????else
????????????????????{
????????????????????????_maxInfoSize?=?（fs.Length?-?54）?/?4?-?3;
????????????????????????textBox4.Text?=?filedlg.FileName;
????????????????????????label4.Text?=?string.Format（“{0:N0}?字節“?fs.Length）;
????????????????????????label5.Text?=?string.Format（“{0:N0}?字節“?_maxInfoSize）;
????????????????????}
????????????????}
????????????????fs.Close（）;
????????????}
????????}

????????private?void?button4_Click（object?sender?EventArgs?e）
????????{
????????????OpenFileDialog?filedlg?=?new?OpenFileDialog（）;
????????????filedlg.Filter?=?“所有文件?（*.*）|*.*“;
??????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-01-06?16:36??DES+LSB\
?????目錄???????????0??2016-01-06?16:36??DES+LSB\.vs\
?????目錄???????????0??2016-01-06?16:36??DES+LSB\.vs\WindowsFormsApplication2\
?????目錄???????????0??2016-01-06?16:36??DES+LSB\.vs\WindowsFormsApplication2\v14\
?????文件???????53248??2015-12-18?12:56??DES+LSB\.vs\WindowsFormsApplication2\v14\.suo
?????目錄???????????0??2016-01-06?16:36??DES+LSB\WindowsFormsApplication2\
?????文件????????1041??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2.sln
?????文件???????54784??2015-06-28?18:38??DES+LSB\WindowsFormsApplication2.v12.suo
?????文件?????????187??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2\App.config
?????目錄???????????0??2016-01-06?16:36??DES+LSB\WindowsFormsApplication2\bin\
?????目錄???????????0??2016-01-06?16:36??DES+LSB\WindowsFormsApplication2\bin\Debug\
?????文件???????24064??2015-10-27?22:31??DES+LSB\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.exe
?????文件?????????187??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.exe.config
?????文件???????46592??2015-10-27?22:31??DES+LSB\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.pdb
?????文件???????22696??2016-01-05?11:52??DES+LSB\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.vshost.exe
?????文件?????????187??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.vshost.exe.config
?????文件?????????490??2015-07-10?19:01??DES+LSB\WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.vshost.exe.manifest
?????目錄???????????0??2015-06-28?14:19??DES+LSB\WindowsFormsApplication2\bin\Release\
?????文件????????9235??2015-06-28?18:35??DES+LSB\WindowsFormsApplication2\Form1.cs
?????文件???????19544??2015-06-28?18:35??DES+LSB\WindowsFormsApplication2\Form1.Designer.cs
?????文件????????5993??2015-06-28?18:35??DES+LSB\WindowsFormsApplication2\Form1.resx
?????文件????????6337??2015-06-28?14:53??DES+LSB\WindowsFormsApplication2\LSBDecrypt.cs
?????文件????????6855??2015-06-28?15:33??DES+LSB\WindowsFormsApplication2\LSBEncrypt.cs
?????目錄???????????0??2016-01-06?16:36??DES+LSB\WindowsFormsApplication2\obj\
?????目錄???????????0??2016-01-06?16:36??DES+LSB\WindowsFormsApplication2\obj\Debug\
?????文件????????1612??2015-06-28?15:46??DES+LSB\WindowsFormsApplication2\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????7109??2015-10-27?22:30??DES+LSB\WindowsFormsApplication2\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件???????????0??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
?????文件???????????0??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
?????文件???????????0??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
?????目錄???????????0??2015-06-28?11:22??DES+LSB\WindowsFormsApplication2\obj\Debug\TempPE\
............此處省略16個文件信息