測試開源.net 混淆器ConfuserEx

由於公司業務需要簡單的把代碼加密混淆，於是瞭解了一下相關的工具然後打算用ConfuserEx試試。

開源地址：https://github.com/yck1509/ConfuserEx/

下載地址：https://github.com/yck1509/ConfuserEx/releases

開始工作

1.簡單編寫一個產生隨機數的Winform視窗程式

 代碼如下

using System;
using System.Windows.Forms;

namespace ConfuserEx_Test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            var max = (double)numericUpDown1.Value;
            var min = (double)numericUpDown2.Value;
            Random random = new Random();
            double v = random.NextDouble() * (max -min) + min;
            label1.Text = v.ToString();
            textBox1.AppendText(v.ToString() + "\r\n");

        }
    }
}

namespace ConfuserEx_Test
{
    partial class Form1
    {
        /// <summary>
        /// 必需的設計器變數。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的資源。
        /// </summary>
        /// <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

        /// <summary>
        /// 設計器支持所需的方法 - 不要修改
        /// 使用代碼編輯器修改此方法的內容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.numericUpDown1 = new System.Windows.Forms.NumericUpDown();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.numericUpDown2 = new System.Windows.Forms.NumericUpDown();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown2)).BeginInit();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(225, 140);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(213, 53);
            this.button1.TabIndex = 0;
            this.button1.Text = "生成隨機數";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(12, 9);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(35, 13);
            this.label1.TabIndex = 1;
            this.label1.Text = "label1";
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(12, 36);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Both;
            this.textBox1.Size = new System.Drawing.Size(207, 157);
            this.textBox1.TabIndex = 2;
            // 
            // numericUpDown1
            // 
            this.numericUpDown1.Location = new System.Drawing.Point(298, 68);
            this.numericUpDown1.Maximum = new decimal(new int[] {
            100000,
            0,
            0,
            0});
            this.numericUpDown1.Minimum = new decimal(new int[] {
            100000,
            0,
            0,
            -2147483648});
            this.numericUpDown1.Name = "numericUpDown1";
            this.numericUpDown1.Size = new System.Drawing.Size(84, 20);
            this.numericUpDown1.TabIndex = 3;
            this.numericUpDown1.Value = new decimal(new int[] {
            100,
            0,
            0,
            0});
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(247, 70);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(43, 13);
            this.label2.TabIndex = 5;
            this.label2.Text = "最大值";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(247, 96);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(43, 13);
            this.label3.TabIndex = 6;
            this.label3.Text = "最小值";
            // 
            // numericUpDown2
            // 
            this.numericUpDown2.Location = new System.Drawing.Point(298, 94);
            this.numericUpDown2.Maximum = new decimal(new int[] {
            100000,
            0,
            0,
            0});
            this.numericUpDown2.Minimum = new decimal(new int[] {
            100000,
            0,
            0,
            -2147483648});
            this.numericUpDown2.Name = "numericUpDown2";
            this.numericUpDown2.Size = new System.Drawing.Size(84, 20);
            this.numericUpDown2.TabIndex = 7;
            this.numericUpDown2.Value = new decimal(new int[] {
            100,
            0,
            0,
            -2147483648});
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(444, 205);
            this.Controls.Add(this.numericUpDown2);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.numericUpDown1);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "ConfuserEx加密混淆測試";
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown2)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.NumericUpDown numericUpDown1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.NumericUpDown numericUpDown2;
    }
}

其功能如圖：

 2.下載打開ConfuserEx使用

2.1 將生成的exe文件拖拽到ConfuserEx的Project中

 2.2在Settings中選中Packer(據說dll文件不是這樣的)，再點擊exe文件，添加一個True。

 2.3點擊Protect!看到Finished at xx:xx, xx:xx elapsed.表示完成

 3.測試加密混淆結果

3.1下載ILSpy--(百度百科:ILspy是一個開源的.net反編譯軟體，使用十分方便。)

3.2將保護前編譯出的exe文件拖拉到ILSpy中

很方便就能夠看到源碼

3.2 將保護後的exe文件拖拉到ILSpy中與之前的做對比

4.結論

簡單的測試了一下，這種保護便於操作，有明顯的保護效果，能夠防止只會下載反編譯軟體來獲得源碼的人，但是可能不是所有反編譯軟體都能防止。只是做個簡單保護。

後面我會做一個Reflector反編譯實驗以及脫殼後再來反編譯。

附加1

Reflector反編譯實驗結果，保護後的直接打不開