C#对文件的字节加密/解密-可逆

Posted 2022-07-31 真爱无限

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Threading;

namespace 文件加密

    public partial class Form1 : Form
   
        public Form1()
       
            InitializeComponent();
       

        private void btn_Encode_Click(object sender, EventArgs e)
       
            Thread th1 = new Thread(new ThreadStart(EncodingFile));
            th1.Start();
       
        private void EncodingFile()
       
            string inf = @txt_source.Text;//源文件地址
            string outf = @txt_des.Text;//目的文件地址
            FileInfo fi = new FileInfo(inf);
            progressBar1.Maximum = (int)fi.Length;
            using (FileStream outstream = new FileStream(@outf, FileMode.Create))
           
                using (FileStream fs = new FileStream(@inf, FileMode.Open))
               
                    byte[] bytes = new byte[1024 * 1024 * 10];//10MB
                    int readlength;
                    while ((readlength = fs.Read(bytes, 0, bytes.Length)) > 0)
                   
                        for (int i = 0; i < readlength; i++)
                       
                            bytes[i] = (byte)(byte.MaxValue - bytes[i]);
                       
                       
                        outstream.Write(bytes, 0, readlength);
                        progressBar1.Value += readlength;
                   
               
           
            MessageBox.Show("加密完成，重复此过程即可解密！");