using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;

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

namespace?FileLock
{
????///?

????///?異常處理類
????///?

????public?class?CryptoHelpException?:?ApplicationException
????{
????????public?CryptoHelpException（string?msg）?:?base（msg）?{?}
????}

????///?

????///?CryptHelp
????///?

????public?class?DESFileClass
????{
????????private?const?ulong?FC_TAG?=?0xFC010203040506CF;

????????private?const?int?BUFFER_SIZE?=?128?*?1024;

????????///?

????????///?檢驗兩個Byte數組是否相同
????????///?

????????///?Byte數組
????????///?Byte數組
????????///?true－相等
????????private?static?bool?CheckByteArrays（byte[]?b1?byte[]?b2）
????????{
????????????if?（b1.Length?==?b2.Length）
????????????{
????????????????for?（int?i?=?0;?i?????????????????{
????????????????????if?（b1[i]?!=?b2[i]）
????????????????????????return?false;
????????????????}
????????????????return?true;
????????????}
????????????return?false;
????????}

????????///?

????????///?
????????///?

????????///?密碼
????????///?
????????///?加密對象
????????private?static?SymmetricAlgorithm?CreateRijndael（string?password?byte[]?salt）
????????{
????????????PasswordDeriveBytes?pdb?=?new?PasswordDeriveBytes（password?salt?“SHA256“?1000）;

????????????SymmetricAlgorithm?sma?=?Rijndael.Create（）;
????????????sma.KeySize?=?256;
????????????sma.Key?=?pdb.GetBytes（32）;
????????????sma.Padding?=?PaddingMode.PKCS7;
????????????return?sma;
????????}

????????///?

????????///?加密文件隨機數生成
????????///?

????????private?static?RandomNumberGenerator?rand?=?new?RNGCryptoServiceProvider（）;

????????///?

????????///?生成指定長度的隨機Byte數組
????????///?

????????///?Byte數組長度
????????///?隨機Byte數組
????????private?static?byte[]?GenerateRandomBytes（int?count）
????????{
????????????byte[]?bytes?=?new?byte[count];
????????????rand.GetBytes（bytes）;
????????????return?bytes;
????????}

????????///?

????????///?加密文件
????????///?

????????///?待加密文件
????????///?加密后輸入文件
????????///?加密密碼
????????public?static?void?EncryptFile（string?inFile?string?outFile?string?password）
????????{
????????????using?（FileStream?fin?=?File.OpenRead（inFile）
????????????????fout?=?File.OpenWrite（outFile））
????????????{
????????????????long?lSize?=?fin.Length;?//?輸入文件長度
????????????????int?size?=?（int）lSize;
????????????????byte[]?bytes?=?new?byte[BUFFER_SIZE];?//?緩存
????????????????int?read?=?-1;?//?輸入文件讀取數量
????????????????int?value?=?0;

????????????????//?獲取IV和salt
????????????????

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

?????文件???????1366??2016-03-03?19:26??FileLock\FileLock\Properties\AssemblyInfo.cs

?????文件???????5612??2016-03-03?19:26??FileLock\FileLock\Properties\Resources.resx

?????文件???????2864??2016-03-03?19:26??FileLock\FileLock\Properties\Resources.Designer.cs

?????文件????????249??2016-03-03?19:26??FileLock\FileLock\Properties\Settings.settings

?????文件???????1091??2016-03-03?19:26??FileLock\FileLock\Properties\Settings.Designer.cs

?????文件???????1713??2016-03-03?20:06??FileLock\FileLock\Form1.cs

?????文件???????5891??2016-03-03?20:06??FileLock\FileLock\Form1.Designer.cs

?????文件????????489??2016-03-03?19:26??FileLock\FileLock\Program.cs

?????文件???????3718??2016-03-03?20:06??FileLock\FileLock\FileLock.csproj

?????文件??????11600??2016-03-03?20:47??FileLock\FileLock\bin\Debug\FileLock.vshost.exe

?????文件??????12800??2016-03-03?20:10??FileLock\FileLock\bin\Debug\FileLock.exe

?????文件??????32256??2016-03-03?20:10??FileLock\FileLock\bin\Debug\FileLock.pdb

?????文件???????6338??2016-03-03?20:10??FileLock\FileLock\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????2164??2016-03-03?19:26??FileLock\FileLock\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件????????180??2016-03-03?20:06??FileLock\FileLock\obj\x86\Debug\FileLock.Properties.Resources.resources

?????文件????????244??2016-03-03?20:06??FileLock\FileLock\obj\x86\Debug\GenerateResource.read.1.tlog

?????文件????????778??2016-03-03?20:06??FileLock\FileLock\obj\x86\Debug\GenerateResource.write.1.tlog

?????文件??????32256??2016-03-03?20:10??FileLock\FileLock\obj\x86\Debug\FileLock.pdb

?????文件??????12800??2016-03-03?20:10??FileLock\FileLock\obj\x86\Debug\FileLock.exe

?????文件????????820??2016-03-03?20:47??FileLock\FileLock\obj\x86\Debug\FileLock.csproj.FileListAbsolute.txt

?????文件????????180??2016-03-03?20:06??FileLock\FileLock\obj\x86\Debug\FileLock.Form1.resources

?????文件???????6020??2016-03-03?20:06??FileLock\FileLock\Form1.resx

?????文件???????8144??2016-03-03?20:10??FileLock\FileLock\DESFileClass.cs

?????文件????????866??2016-03-03?19:26??FileLock\FileLock.sln

????..A..H.?????20480??2016-03-03?20:59??FileLock\FileLock.suo

?????文件??????????8??2016-03-03?20:37??FileLock\text.txt

?????目錄??????????0??2016-03-03?19:26??FileLock\FileLock\obj\x86\Debug\TempPE

?????目錄??????????0??2016-03-03?19:26??FileLock\FileLock\obj\x86\Debug

?????目錄??????????0??2016-03-03?19:26??FileLock\FileLock\bin\Debug

?????目錄??????????0??2016-03-03?19:49??FileLock\FileLock\bin\Release

............此處省略9個文件信息