测试开源.net 混淆器ConfuserEx

由于公司业务需要简单的把代码加密混淆，于是了解了一下相关的工具然后打算用ConfuserEx试试。

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

下载地址：https://github.com/yck1509/ConfuserEx/releases

开始工作

1.简单编写一个产生随机数的Winform窗口程序

代码如下

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");

        }
    }
}

Form1.cs

namespace ConfuserEx_Test
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要修改
        /// 使用代码编辑器修改此方法的内容。
        /// </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(, );
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(, );
            this.button1.TabIndex = ;
            this.button1.Text = "生成随机数";
            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(, );
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(, );
            this.label1.TabIndex = ;
            this.label1.Text = "label1";
            //
            // textBox1
            //
            this.textBox1.Location = new System.Drawing.Point(, );
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Both;
            this.textBox1.Size = new System.Drawing.Size(, );
            this.textBox1.TabIndex = ;
            //
            // numericUpDown1
            //
            this.numericUpDown1.Location = new System.Drawing.Point(, );
            this.numericUpDown1.Maximum = new decimal(new int[] {
            ,
            ,
            ,
            });
            this.numericUpDown1.Minimum = new decimal(new int[] {
            ,
            ,
            ,
            -});
            this.numericUpDown1.Name = "numericUpDown1";
            this.numericUpDown1.Size = new System.Drawing.Size(, );
            this.numericUpDown1.TabIndex = ;
            this.numericUpDown1.Value = new decimal(new int[] {
            ,
            ,
            ,
            });
            //
            // label2
            //
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(, );
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(, );
            this.label2.TabIndex = ;
            this.label2.Text = "最大值";
            //
            // label3
            //
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(, );
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(, );
            this.label3.TabIndex = ;
            this.label3.Text = "最小值";
            //
            // numericUpDown2
            //
            this.numericUpDown2.Location = new System.Drawing.Point(, );
            this.numericUpDown2.Maximum = new decimal(new int[] {
            ,
            ,
            ,
            });
            this.numericUpDown2.Minimum = new decimal(new int[] {
            ,
            ,
            ,
            -});
            this.numericUpDown2.Name = "numericUpDown2";
            this.numericUpDown2.Size = new System.Drawing.Size(, );
            this.numericUpDown2.TabIndex = ;
            this.numericUpDown2.Value = new decimal(new int[] {
            ,
            ,
            ,
            -});
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(, );
            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加密混淆测试";
            ((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;
    }
}

Form1.Designer.cs

其功能如图：

2.下载打开ConfuserEx使用

2.1 将生成的exe文件拖拽到ConfuserEx的Project中

2.2在Settings中选中Packer(据说dll文件不是这样的)，再点击exe文件，添加一个True。

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

3.测试加密混淆结果

3.1下载ILSpy--(百度百科:ILspy是一个开源的.net反编译软件，使用十分方便。)

3.2将保护前编译出的exe文件拖拉到ILSpy中

很方便就能够看到源码

3.2 将保护后的exe文件拖拉到ILSpy中与之前的做对比

4.结论

简单的测试了一下，这种保护便于操作，有明显的保护效果，能够防止只会下载反编译软件来获得源码的人，但是可能不是所有反编译软件都能防止。只是做个简单保护。

后面我会做一个Reflector反编译实验以及脱壳后再来反编译。

附加1

Reflector反编译实验结果，保护后的直接打不开