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
我要评论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(225, 140);
this.button1.name = "button1";
this.button1.size = new system.drawing.size(213, 53);
this.button1.tabindex = 0;
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(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;
}
}
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
如对本文有疑问， 点击进行留言回复！！
使用Visual Studio2019创建C#项目(窗体应用程序、控制台应用程序、Web应用程序)
C#实现获取本地内网(局域网)和外网(公网)IP地址的方法分析
网友评论