某专业起名程序注册码分析与注册机
从原帖可知Net程序，有混淆。
直接de4处理并找到注册验证：
[C#] 纯文本查看 复制代码
001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077 078 079 080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095 096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | private void method_0(object sender, EventArgs e){ProjectData.ClearProjectError();if (Class18.bool_16){base.Close();}else if (Strings.Len(Class15.string_1) == 0){Interaction.MsgBox("机器码不能为空，如不能解决，请与南方联系。", MsgBoxStyle.OkOnly, null);}else{Conversions.ToString(Class1.smethod_0().Registry.GetValue("HKEY_CURRENT_USER\Software\NanfangSoft .net\ProName730", "PCNB", ""));string text = Strings.Trim(this.vmethod_2().Text);string text2 = Strings.Trim(this.vmethod_6().Text);if ((text2.Length < 14) | (text2.Length > 15)) //长度15位{this.vmethod_0().Text = "注册码不对！";}else{string text3 = Strings.Mid(text2, 1, 4) + Strings.Mid(text2, 9, 4);string text4 = Strings.Mid(text2, 5, 1);string text5 = Strings.Mid(text2, 6, 1);string text6 = Strings.Mid(text2, 7, 1);string text7 = Strings.Mid(text2, 8, 1);string text8 = Strings.Mid(text2, 13, 1);string str = Strings.Mid(text2, 14, 1);if ((Operators.CompareString(text4, "6", false) == 0) | (Operators.CompareString(text4, "7", false) == 0) | (Operators.CompareString(text4, "B", false) == 0)){text4 = "1";}if ((Operators.CompareString(text4, "8", false) == 0) | (Operators.CompareString(text4, "9", false) == 0) | (Operators.CompareString(text4, "C", false) == 0)){text4 = "2";}if (Operators.CompareString(text5, "A", false) == 0){text5 = "0";}if (Operators.CompareString(text5, "B", false) == 0){text5 = "1";}if (Operators.CompareString(text5, "C", false) == 0){text5 = "2";}if (Operators.CompareString(text5, "D", false) == 0){text5 = "3";}if (Operators.CompareString(text5, "E", false) == 0){text5 = "4";}if (Operators.CompareString(text5, "F", false) == 0){text5 = "5";}if (Operators.CompareString(text5, "G", false) == 0){text5 = "6";}if (Operators.CompareString(text5, "H", false) == 0){text5 = "7";}if (Operators.CompareString(text5, "J", false) == 0){text5 = "8";}if (Operators.CompareString(text5, "K", false) == 0){text5 = "9";}string value = "20" + text4 + text5;//5、6位组成年份if ((Operators.CompareString(text6, "6", false) == 0) | (Operators.CompareString(text6, "7", false) == 0) | (Operators.CompareString(text6, "B", false) == 0)){text6 = "1";}if ((Operators.CompareString(text6, "4", false) == 0) | (Operators.CompareString(text6, "5", false) == 0) | (Operators.CompareString(text6, "A", false) == 0)){text6 = "0";}if (Operators.CompareString(text7, "A", false) == 0){text7 = "0";}if (Operators.CompareString(text7, "B", false) == 0){text7 = "1";}if (Operators.CompareString(text7, "C", false) == 0){text7 = "2";}if (Operators.CompareString(text7, "D", false) == 0){text7 = "3";}if (Operators.CompareString(text7, "E", false) == 0){text7 = "4";}if (Operators.CompareString(text7, "F", false) == 0){text7 = "5";}if (Operators.CompareString(text7, "G", false) == 0){text7 = "6";}if (Operators.CompareString(text7, "H", false) == 0){text7 = "7";}if (Operators.CompareString(text7, "J", false) == 0){text7 = "8";}if (Operators.CompareString(text7, "K", false) == 0){text7 = "9";}string value2 = text6 + text7;//7、8位组成月份if (Operators.CompareString(text8, "A", false) == 0){text8 = "0";}if (Operators.CompareString(text8, "B", false) == 0){text8 = "1";}if (Operators.CompareString(text8, "C", false) == 0){text8 = "2";}string value3 = text8 + str;//13、14位组成日if (((text2.Length == 15) & ((Operators.CompareString(Strings.Mid(text2, 15, 1), "1", false) == 0) | (Operators.CompareString(Strings.Mid(text2, 15, 1), "2", false) == 0))) && Class1.smethod_0().FileSystem.FileExists(Class20.string_8 + "\syspnam730.dll")){Class1.smethod_0().FileSystem.DeleteFile(Class20.string_8 + "\syspnam730.dll");}int num = Conversions.ToInteger(value);//年 <=2030int num2 = Conversions.ToInteger(value2);//月 1-12int num3 = Conversions.ToInteger(value3);//日 1-28if ((num3 < 1) | (num3 > 28) | (num < 2013) | (num > 2030) | (num2 < 1) | (num2 > 12) | (num < DateAndTime.Now.Year) | ((num == DateAndTime.Now.Year) & (num2 < DateAndTime.Now.Month))){this.vmethod_0().Text = "注册码不对！";}else if (this.short_0 == 1){this.method_1(this.vmethod_8(), new EventArgs());}else if (Strings.Len(Strings.Trim(this.vmethod_4().Text)) == 0){this.vmethod_0().Text = "您没有输入姓名。";}else if (Strings.Len(text3) == 0){this.vmethod_0().Text = "您没有输入注册码。";}//机器码和注册码比较else if (Class18.smethod_3(ref text, ref text3) & !File.Exists(Class20.string_8 + "\syspnam730.dll")){Class1.smethod_0().Registry.SetValue("HKEY_CURRENT_USER\Software\NanfangSoft .net\ProName730", "Name", this.vmethod_4().Text);string text9 = Strings.UCase(text3);Class20.smethod_11(ref text, ref text9, ref value, ref value2, ref value3);Class20.bool_0 = true;this.vmethod_0().Text = "注册成功！点击'退出'，您现在可以使用本程序了。";}else{this.vmethod_0().Text = "注册码不对！";}}}int num4;if (num4 != 0){ProjectData.ClearProjectError();}} |
分析可知：注册码长度15位，1-4位+9-12位为机器码转换信息，5、6位授权年份信息，7、8位授权月份信息，13、14位授权日信息，第15位1或2固定。
且年<=2030年，月：1-12，日：1-28，授权的时间信息比较简单，看相应代码即可。
机器码和注册码比较Class18.smethod_3(ref text, ref text3)
跟进看一下，调用太复杂，不容易得到算法，也是原贴楼主困惑的地方，相互调用太多了，直接挖代码可能有难度，换个思路直接反射调用。
注册机编写
试了下反射调用成功。
获取机器码：
机器码转换：
注册码拼接：
搞定~~~
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