使用密碼加密可執行檔案

使用密碼加密可執行檔案

start

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.Security.Cryptography;

using Microsoft.Win32;

namespace EncryptExe

{

    public partial class FrmEncrypt : Form

    {

        public FrmEncrypt()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

            FileMenu(Application.ExecutablePath + ",0", Application.ExecutablePath);

            string[] str = Environment.GetCommandLineArgs();

            try

            {

                string strFile = "";

                for (int i = 2; i < str.Length; i++)

                    strFile += str[i];

                FileInfo FInfo = new FileInfo(strFile);

                if (FInfo.Extension.ToLower() == ".mrexe")

                    textBox1.Text = strFile;

            }

            catch { }

        //選擇要加密或解密的檔案

        private void button1_Click(object sender, EventArgs e)

            openFileDialog1.Filter = "*.exe(exe可執行檔案)|*.exe|*.mrexe(mrexe加密檔案)|*.mrexe|*.*(所有檔案)|*.*";

            if (openFileDialog1.ShowDialog() == DialogResult.OK)

                textBox1.Text = openFileDialog1.FileName;

        //加密EXE檔案

        private void button2_Click(object sender, EventArgs e)

            string strPwd = textBox2.Text;

            byte[] btRKey = new byte[0];

            if (strPwd.Length == 6)

                btRKey = new byte[] { (byte)strPwd[0], (byte)strPwd[1], (byte)strPwd[2], (byte)strPwd[3], (byte)strPwd[4], (byte)strPwd[5], (byte)strPwd[0], (byte)strPwd[1] };

            if (strPwd.Length == 7)

                btRKey = new byte[] { (byte)strPwd[0], (byte)strPwd[1], (byte)strPwd[2], (byte)strPwd[3], (byte)strPwd[4], (byte)strPwd[5], (byte)strPwd[6], (byte)strPwd[0] };

            if (strPwd.Length >= 8)

                btRKey = new byte[] { (byte)strPwd[0], (byte)strPwd[1], (byte)strPwd[2], (byte)strPwd[3], (byte)strPwd[4], (byte)strPwd[5], (byte)strPwd[6], (byte)strPwd[7] };

            FileStream FStream = new FileStream(textBox1.Text, FileMode.Open, FileAccess.Read);

            FileStream NewFStream = new FileStream(textBox1.Text + ".mrexe", FileMode.OpenOrCreate, FileAccess.Write);

            NewFStream.SetLength((long)0);

            byte[] buffer = new byte[0x400];

            int MinNum = 0;

            long length = FStream.Length;

            int MaxNum = (int)(length / ((long)0x400));

            DES myDES = new DESCryptoServiceProvider();

            CryptoStream CStream = new CryptoStream(NewFStream, myDES.CreateEncryptor(btRKey, btRKey), CryptoStreamMode.Write);

            while (MinNum < length)

                int count = FStream.Read(buffer, 0, 0x400);

                CStream.Write(buffer, 0, count);

                MinNum += count;

            CStream.Close();

            NewFStream.Close();

            FStream.Close();

            File.Delete(textBox1.Text);

            MessageBox.Show("使用密碼加密可執行檔案成功！", "資訊提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        //解密EXE檔案

        private void button3_Click(object sender, EventArgs e)

            FileStream FStream = null;

            FileStream NewFStream = null;

            CryptoStream CStream = null;

                try

                {

                    byte[] btRKey = new byte[0];

                    if (strPwd.Length == 6)

                    {

                        btRKey = new byte[] { (byte)strPwd[0], (byte)strPwd[1], (byte)strPwd[2], (byte)strPwd[3], (byte)strPwd[4], (byte)strPwd[5], (byte)strPwd[0], (byte)strPwd[1] };

                    }

                    if (strPwd.Length == 7)

                        btRKey = new byte[] { (byte)strPwd[0], (byte)strPwd[1], (byte)strPwd[2], (byte)strPwd[3], (byte)strPwd[4], (byte)strPwd[5], (byte)strPwd[6], (byte)strPwd[0] };

                    if (strPwd.Length >= 8)

                        btRKey = new byte[] { (byte)strPwd[0], (byte)strPwd[1], (byte)strPwd[2], (byte)strPwd[3], (byte)strPwd[4], (byte)strPwd[5], (byte)strPwd[6], (byte)strPwd[7] };

                    FStream = new FileStream(textBox1.Text, FileMode.Open, FileAccess.Read);

                    string strNewFile = textBox1.Text.Substring(0, textBox1.Text.Length - 6);

                    NewFStream = new FileStream(strNewFile, FileMode.OpenOrCreate, FileAccess.Write);

                    NewFStream.SetLength((long)0);

                    byte[] buffer = new byte[0x400];

                    int MinNum = 0;

                    long length = FStream.Length;

                    int MaxNum = (int)(length / ((long)0x400));

                    DES myDES = new DESCryptoServiceProvider();

                    CStream = new CryptoStream(NewFStream, myDES.CreateDecryptor(btRKey, btRKey), CryptoStreamMode.Write);

                    while (MinNum < length)

                        int count = FStream.Read(buffer, 0, 0x400);

                        CStream.Write(buffer, 0, count);

                        MinNum += count;

                    CStream.Close();

                    FStream.Close();

                    NewFStream.Close();

                    File.Delete(textBox1.Text);

                    System.Diagnostics.Process.Start(strNewFile);

                }

                catch

                    MessageBox.Show("密碼錯誤！", "資訊提示", MessageBoxButtons.OK, MessageBoxIcon.Error);

                    textBox2.Focus();

            finally

                CStream.Close();

                FStream.Close();

                NewFStream.Close();

        //建立快捷菜單

        public static void FileMenu(string strPath, string strName)

                Registry.ClassesRoot.CreateSubKey(".mrexe");

                RegistryKey RKey1 = Registry.ClassesRoot.OpenSubKey(".mrexe", true);

                RKey1.SetValue("", "mrexefile");

                RKey1.Close();

                Registry.ClassesRoot.CreateSubKey("mrexefile");

                RegistryKey RKey2 = Registry.ClassesRoot.OpenSubKey("mrexefile", true);

                RKey2.CreateSubKey("DefaultIcon");

                RKey2.CreateSubKey("shell");

                RKey2.Close();

                RegistryKey RKey3 = Registry.ClassesRoot.OpenSubKey("mrexefile\\DefaultIcon", true);

                RKey3.SetValue("", strPath);

                RKey3.Close();

                RegistryKey RKey4 = Registry.ClassesRoot.OpenSubKey("mrexefile\\shell", true);

                RKey4.CreateSubKey("使用密碼打開");

                RKey4.Close();

                RegistryKey RKey5 = Registry.ClassesRoot.OpenSubKey("mrexefile\\shell\\使用密碼打開", true);

                RKey5.CreateSubKey("command");

                RKey5.Close();

                RegistryKey RKey6 = Registry.ClassesRoot.OpenSubKey("mrexefile\\shell\\使用密碼打開\\command", true);

                RKey6.SetValue("", strName + " \\F %1");

                RKey6.Close();

            catch

    }

}

    partial class FrmEncrypt

        /// <summary>

        /// 必需的設計器變量。

        /// </summary>

        private System.ComponentModel.IContainer components = null;

        /// 清理所有正在使用的資源。

        /// <param name="disposing">如果應釋放托管資源，為 true；否則為 false。</param>

        protected override void Dispose(bool disposing)

            if (disposing && (components != null))

                components.Dispose();

            base.Dispose(disposing);

        #region Windows 窗體設計器生成的代碼

        /// 設計器支援所需的方法 - 不要

        /// 使用代碼編輯器修改此方法的内容。

        private void InitializeComponent()

            this.button3 = new System.Windows.Forms.Button();

            this.button2 = new System.Windows.Forms.Button();

            this.groupBox1 = new System.Windows.Forms.GroupBox();

            this.label1 = new System.Windows.Forms.Label();

            this.textBox1 = new System.Windows.Forms.TextBox();

            this.button1 = new System.Windows.Forms.Button();

            this.label3 = new System.Windows.Forms.Label();

            this.label2 = new System.Windows.Forms.Label();

            this.textBox2 = new System.Windows.Forms.TextBox();

            this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();

            this.groupBox1.SuspendLayout();

            this.SuspendLayout();

            // 

            // button3

            this.button3.Location = new System.Drawing.Point(250, 107);

            this.button3.Name = "button3";

            this.button3.Size = new System.Drawing.Size(59, 27);

            this.button3.TabIndex = 11;

            this.button3.Text = "打開";

            this.button3.UseVisualStyleBackColor = true;

            this.button3.Click += new System.EventHandler(this.button3_Click);

            // button2

            this.button2.Location = new System.Drawing.Point(185, 107);

            this.button2.Name = "button2";

            this.button2.Size = new System.Drawing.Size(59, 27);

            this.button2.TabIndex = 12;

            this.button2.Text = "加密";

            this.button2.UseVisualStyleBackColor = true;

            this.button2.Click += new System.EventHandler(this.button2_Click);

            // groupBox1

            this.groupBox1.Controls.Add(this.label1);

            this.groupBox1.Controls.Add(this.textBox1);

            this.groupBox1.Controls.Add(this.button1);

            this.groupBox1.Controls.Add(this.label3);

            this.groupBox1.Controls.Add(this.label2);

            this.groupBox1.Controls.Add(this.textBox2);

            this.groupBox1.Location = new System.Drawing.Point(5, 9);

            this.groupBox1.Name = "groupBox1";

            this.groupBox1.Size = new System.Drawing.Size(304, 92);

            this.groupBox1.TabIndex = 10;

            this.groupBox1.TabStop = false;

            this.groupBox1.Text = "Exe檔案加/解密設定";

            // label1

            this.label1.AutoSize = true;

            this.label1.Location = new System.Drawing.Point(6, 17);

            this.label1.Name = "label1";

            this.label1.Size = new System.Drawing.Size(95, 12);

            this.label1.TabIndex = 0;

            this.label1.Text = "請選擇Exe檔案：";

            // textBox1

            this.textBox1.Location = new System.Drawing.Point(32, 35);

            this.textBox1.Name = "textBox1";

            this.textBox1.Size = new System.Drawing.Size(225, 21);

            this.textBox1.TabIndex = 1;

            // button1

            this.button1.Location = new System.Drawing.Point(263, 33);

            this.button1.Name = "button1";

            this.button1.Size = new System.Drawing.Size(33, 23);

            this.button1.TabIndex = 2;

            this.button1.Text = "…";

            this.button1.UseVisualStyleBackColor = true;

            this.button1.Click += new System.EventHandler(this.button1_Click);

            // label3

            this.label3.AutoSize = true;

            this.label3.ForeColor = System.Drawing.Color.Red;

            this.label3.Location = new System.Drawing.Point(201, 66);

            this.label3.Name = "label3";

            this.label3.Size = new System.Drawing.Size(95, 12);

            this.label3.TabIndex = 5;

            this.label3.Text = "(密碼應大于6位)";

            // label2

            this.label2.AutoSize = true;

            this.label2.Location = new System.Drawing.Point(7, 66);

            this.label2.Name = "label2";

            this.label2.Size = new System.Drawing.Size(65, 12);

            this.label2.TabIndex = 3;

            this.label2.Text = "加密密碼：";

            // textBox2

            this.textBox2.Location = new System.Drawing.Point(73, 63);

            this.textBox2.Name = "textBox2";

            this.textBox2.PasswordChar = '*';

            this.textBox2.Size = new System.Drawing.Size(127, 21);

            this.textBox2.TabIndex = 4;

            // Form1

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.ClientSize = new System.Drawing.Size(316, 140);

            this.Controls.Add(this.button3);

            this.Controls.Add(this.button2);

            this.Controls.Add(this.groupBox1);

            this.MaximizeBox = false;

            this.MinimizeBox = false;

            this.Name = "Form1";

            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;

            this.Text = "使用密碼加密可執行檔案";

            this.Load += new System.EventHandler(this.Form1_Load);

            this.groupBox1.ResumeLayout(false);

            this.groupBox1.PerformLayout();

            this.ResumeLayout(false);

        #endregion

        private System.Windows.Forms.Button button3;

        private System.Windows.Forms.Button button2;

        private System.Windows.Forms.GroupBox groupBox1;

        private System.Windows.Forms.Label label1;

        private System.Windows.Forms.TextBox textBox1;

        private System.Windows.Forms.Button button1;

        private System.Windows.Forms.Label label3;

        private System.Windows.Forms.Label label2;

        private System.Windows.Forms.TextBox textBox2;

        private System.Windows.Forms.OpenFileDialog openFileDialog1;