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.IO;
using?System.Security.Cryptography;
using?System.Globalization;



namespace?WindowsFormsApplication1
{
???
????public?partial?class?Form1?:?Form
????{
??????
???????public?static?string?EncryptString（string?sInputString?string?sKey）
???????{
???????????try
???????????{
???????????????byte[]?data?=?System.Text.Encoding.Default.GetBytes（sInputString）;
???????????????DESCryptoServiceProvider?DES?=?new?DESCryptoServiceProvider（）;
???????????????DES.Key?=?System.Text.Encoding.Default.GetBytes（sKey）;
???????????????DES.IV?=?System.Text.Encoding.Default.GetBytes（sKey）;
???????????????DES.Padding?=?PaddingMode.Zeros;
???????????????DES.Mode?=?CipherMode.ECB;
???????????????ICryptoTransform?desencrypt?=?DES.CreateEncryptor（）;
???????????????byte[]?result?=?desencrypt.TransformFinalBlock（data?0?data.Length）;
???????????????return?BitConverter.ToString（result）.Replace（“-“?string.Empty）;
?????????????//??return?BitConverter.ToString（result）;
???????????}
???????????catch?{?}

???????????return?“轉(zhuǎn)換出錯！密鑰必須為8位可用4個中文字符代替!“;
???????}
???????public?static?string?DecryptString（string?sInputString?string?sKey）
???????{
???????????try
???????????{
???????????????byte[]?data?=?new?byte[sInputString.Length?/?2];
???????????????for?（int?i?=?0;?i????????????????{
???????????????????data[i]?=?byte.Parse（sInputString.Substring（i?*?2?2）?Numberstyles.HexNumber）;
???????????????}???????????
???????????????DESCryptoServiceProvider?DES?=?new?DESCryptoServiceProvider（）;
???????????????DES.Key?=?System.Text.Encoding.Default.GetBytes（sKey）;
???????????????DES.IV?=?System.Text.Encoding.Default.GetBytes（sKey）;
???????????????DES.Padding?=?PaddingMode.Zeros;
???????????????DES.Mode?=?CipherMode.ECB;
???????????????ICryptoTransform?desencrypt?=?DES.CreateDecryptor（）;
???????????????byte[]?result?=?desencrypt.TransformFinalBlock（data?0?data.Length）;
??????????????//?return?Encoding.UTF8.GetString（result）;
???????????????return??System.Text.Encoding.Default.GetString（result）;?
???????????}
???????????catch?{?}
???????????return?“解密出錯！“;
???????}
????????public?Form1（）
????????{
????????????InitializeComponent（）;

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

????????????textBox3.Text?=?EncryptString（textBox2.Text?textBox1.Text）;
????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{
????????????textBox2.Text?=?DecryptString（textBox3.Text?textBox1.Text）;
????????}
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????11776??2015-09-29?15:20??C#DES標(biāo)準(zhǔn)ECB加密解密\DES.exe

?????文件????????187??2015-09-28?16:11??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1\App.config

?????文件???????2854??2015-09-29?15:20??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1\Form1.cs

?????文件???????6303??2015-09-29?15:20??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1\Form1.Designer.cs

?????文件???????5817??2015-09-29?15:20??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1\Form1.resx

?????文件????????536??2015-09-28?16:11??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1\Program.cs

?????文件???????3828??2015-09-29?14:21??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1\WindowsFormsApplication1.csproj

?????文件???????1041??2015-09-28?16:11??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1.sln

????..A..H.?????39936??2015-09-29?15:23??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1.v12.suo

?????目錄??????????0??2015-09-29?15:23??C#DES標(biāo)準(zhǔn)ECB加密解密\WindowsFormsApplication1

?????目錄??????????0??2015-09-29?15:23??C#DES標(biāo)準(zhǔn)ECB加密解密

-----------?---------??----------?-----??----

????????????????72278????????????????????11