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我目前正在學習密碼學，這是我迄今爲止學到的。如何用存根包裹我的生成器？
一個計算器由一個建造者和一個存根組成。
構建者的作用是加密一個文件，存根包裝文件 並使其運行在正在解密的機器的內存緩衝區中。 （請糾正，如果我錯了）
我已經創建了我的文件加密器（生成器），說實話我不知道如何創建一個存根。我一直在尋找整個一天，但所有我能看到的是，這些真的是老了控制檯應用程序不解釋真的什麼..
所以我的問題是... 如何換我當前的文件加密與存根..或如何創建一個存根。不確定如何形成這個問題，因爲我對存根很陌生。
這是我的文件加密器。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows;
using Microsoft.Win32;
using System.Security.Cryptography;
using System.IO;
namespace FileEncrypter
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
string key;
public MainWindow()
{
InitializeComponent();
key = generateKey();
}
public string generateKey()
{
DESCryptoServiceProvider desCrypto = (DESCryptoServiceProvider)DESCryptoServiceProvider.Create();
return ASCIIEncoding.ASCII.GetString(desCrypto.Key);
}
private void EncryptBtn_Click(object sender, RoutedEventArgs e)
{
try
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.ShowDialog();
inputencryptFileTextBox.Text = ofd.FileName;
SaveFileDialog sfd = new SaveFileDialog();
sfd.ShowDialog();
outputencryptFileTextBox.Text = sfd.FileName;
encrypt(inputencryptFileTextBox.Text, outputencryptFileTextBox.Text, key);
MessageBox.Show("File has been encrypted.", "File");
}
catch(Exception encEx)
{
MessageBox.Show(encEx.ToString());
}
}
private void encrypt(string input, string output, string strhash)
{
FileStream inFs, outFs;
CryptoStream cs;
TripleDESCryptoServiceProvider TDC = new TripleDESCryptoServiceProvider();
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] byteHash, byteTexto;
inFs = new FileStream(input, FileMode.Open, FileAccess.Read);
outFs = new FileStream(output, FileMode.OpenOrCreate, FileAccess.Write);
byteHash = md5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(strhash));
byteTexto = File.ReadAllBytes(input);
md5.Clear();
TDC.Key = byteHash;
TDC.Mode = CipherMode.ECB;
cs = new CryptoStream(outFs, TDC.CreateEncryptor(), CryptoStreamMode.Write);
int byteRead;
long length, position = 0;
length = inFs.Length;
while (position < length)
{
byteRead = inFs.Read(byteTexto, 0, byteTexto.Length);
position += byteRead;
cs.Write(byteTexto, 0, byteRead);
}
inFs.Close();
outFs.Close();
}
private void DecryptBtn_Click(object sender, RoutedEventArgs e)
{
try
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.ShowDialog();
inputdecryptFileTextBox.Text = ofd.FileName;
SaveFileDialog sfd = new SaveFileDialog();
sfd.ShowDialog();
outputdecryptFileTextBox.Text = sfd.FileName;
decrypt(inputdecryptFileTextBox.Text, outputdecryptFileTextBox.Text, key);
MessageBox.Show("File has been decrypted.", "File");
}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void decrypt(string input, string output, string strhash)
{
FileStream inFs, outFs;
CryptoStream cs;
TripleDESCryptoServiceProvider TDC = new TripleDESCryptoServiceProvider();
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] byteHash, byteTexto;
inFs = new FileStream(input, FileMode.Open, FileAccess.Read);
outFs = new FileStream(output, FileMode.OpenOrCreate, FileAccess.Write);
byteHash = md5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(strhash));
byteTexto = File.ReadAllBytes(input);
md5.Clear();
TDC.Key = byteHash;
TDC.Mode = CipherMode.ECB;
cs = new CryptoStream(outFs, TDC.CreateDecryptor(), CryptoStreamMode.Write);
int byteRead;
long length, position = 0;
length = inFs.Length;
while (position < length)
{
byteRead = inFs.Read(byteTexto, 0, byteTexto.Length);
position += byteRead;
cs.Write(byteTexto, 0, byteRead);
}
inFs.Close();
outFs.Close();
}
}
}