C # Software registration and Registration

The principle is that the software and the registration machine use the same algorithm to match the data. After registration, the data is written to the registry. A simple way to register a machine.

1, the realization of software

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Management;
Using System.Text;

Using System.Threading.Tasks; Namespace Softwareregister {class Softreg {///<summary>///get Hard drive serial number///</summ ary>///<returns></returns> public string Getdiskserialnum () {Managem
            Entclass Mydisk = new ManagementClass ("Win32_NetworkAdapterConfiguration");
            ManagementObject disk = new ManagementObject ("win32_logicaldisk.deviceid=\" C:\ "); Disk.
            Get (); return disk. GetPropertyValue ("VolumeSerialNumber").
        ToString (); ///<summary>///Get CPU serial number///</summary>///<returns></returns&gt
        ;
            public string Getcpuserialnum () {String cpustr = "";
            ManagementClass mycpu = new ManagementClass ("Win32_Processor"); Managementobjectcollection mycpucollention = Mycpu.
            GetInstances (); foreach (managementobject var in mycpucollention) {cpustr = var. properties["Processorid"].
            Value.tostring ();
        return cpustr; ///<summary>///The first 24 digits of the CPU serial number and HDD serial number to do the machine code///</summary>///<returns> </returns> public String Getmachinenum () {String Num = Getcpuserialnum () + Getdiskseria
            Lnum ();
            String machinenum = Num.substring (0,24);
        return machinenum;  } public int[] M_intcode = new int[127];  Storage key public char[] M_charascii = new CHAR[25]; Storage ASCII public int[] M_intascii = new INT[25]; Store ASCII value///<summary>///initialization key (generated by modulo 9)///</summary> public void Intiin  Tcode () {for (int i = 0; i < m_intcode.length; i++) {M_intcode[i] = I
            % 9;
   }     ///<summary>///Get device registration code///</summary>///<returns></retur
            Ns> public String Getregisternum () {intiintcode ();
            String machinenume = Getmachinenum ();  Get ASCII code for (int i = 1; i < m_charascii.length i++) {M_charascii[i] by machine code
            Convert.tochar (Machinenume.substring (i-1, 1));
            ///Through a simple algorithm, change the value of ASCII, the value of ASCII, plus the value of the initialization key for (int j = 1; j < M_intascii.length; J + +)
            {M_intascii[j] = Convert.ToInt32 (m_charascii[j]) + m_intcode[convert.toint32 (m_charascii[j))];
            } String machineascii = ""; for (int k = 1; k < m_intascii.length; k++) {if (m_intascii[k) >=-&& M_inta Scii[k] <= 57) | | (M_intascii[k] >= && m_intascii[k] <= 90) | | (M_intascii[k] >= && M_intasciI[k] <= 122)) {Machineascii + = Convert.tochar (M_intascii[k]).  ToString ();
                    Between 0-9,a-z,a-z} else if (M_intascii[k] > 122) { Machineascii + + Convert.tochar (M_intascii[k]-10). ToString (); Greater than Z} else {machineascii + = Convert.tochar (m_intasc II[K]-9).
                ToString ();
        } return machineascii; }
    }
}

2, check whether registration is available

Using Microsoft.Win32;
Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;

Using System.Threading.Tasks;

        Namespace Softwareregister {public class Checkreg {Softreg Softreg = new Softreg ();
        <summary>///Check has been registered///</summary>///<returns></returns>
            public bool Getisreg () {bool Ischeck = false; RegistryKey RegKey = Registry.CurrentUser.OpenSubKey ("SOFTWARE", true). CreateSubKey ("MySoftware").
            CreateSubKey ("Register.ini");
                foreach (var item in Regkey.getsubkeynames ()) {if (item = = Softreg.getregisternum ())
                {Ischeck = true;
        } return Ischeck; ///<summary>///To determine whether the software is available, has 20 trial periods, can also be replaced by days, and then written to the registry information///</summary>///& Lt;returns></returns> public bool Getuseinfo (ref int m_intuse) {m_intuse = 0;
            BOOL Is_canuse = false; try {m_intuse = (int) registry.getvalue ("Hkey_local_machine\\software\\mysoftware", "Usetimes"
            , 0); catch (Exception) {registry.setvalue ("Hkey_local_machine\\software\\mysoftware")
            , "Usetimes", 0, Registryvaluekind.dword);
            } m_intuse = (int) registry.getvalue ("Hkey_local_machine\\software\\mysoftware", "Usetimes", 0);
                if (M_intuse < 5) {int int_count = m_intuse + 1;
                Registry.setvalue ("Hkey_local_machine\\software\\mysoftware", "Usetimes", Int_count);
            Is_canuse = true;
            else {is_canuse = false;
        return is_canuse;
 }
    }
}

</pre><p></p><pre>

Main form::

Using Microsoft.Win32;
Using Softwareregister;
Using System;
Using System.Collections.Generic;
Using System.ComponentModel;
Using System.Data;
Using System.Drawing;
Using System.Linq;
Using System.Text;
Using System.Threading.Tasks;

Using System.Windows.Forms; namespace Registermachine {public partial class Form1:form {public Form1 () {Initi
            Alizecomponent ();
        Inti ();
        } softreg Softreg = new Softreg ();
        Checkreg Checkreg = new Checkreg ();
            private void Inti () {txtb_machinenum.text=softreg.getmachinenum (); if (Checkreg.getisreg ()) Label1.
            Text = "Software has been registered"; Else Label1.

            Text = "Software not registered";
            int count = 0;
                if (Checkreg.getuseinfo (ref count)) {int k = 5-count; MessageBox.Show ("not registered.") The trial count is left with "+ K". ToString () + "times.
 "," Information ", MessageBoxButtons.OK, MessageBoxIcon.Information);           } private void Button1_Click (object sender, EventArgs e) {
                    try {if (Txtb_regnum.text = = Softreg.getregisternum ()) { MessageBox.Show ("registered successfully.") When the software is restarted, it takes effect.
                    "," Information ", MessageBoxButtons.OK, MessageBoxIcon.Information); RegistryKey Retkey = Registry.CurrentUser.OpenSubKey ("Software", true). CreateSubKey ("MySoftware"). CreateSubKey ("Register.ini").
                    CreateSubKey (Txtb_regnum.text); Retkey.
                    SetValue ("UserName", "Rsoft"); This.
                Close (); } else {MessageBox.Show ("Registration code error.)
                    "," warns ", MessageBoxButtons.OK, messageboxicon.warning);
                Txtb_regnum.selectall (); } catch (Exception ex) {throw new Exception (ex.
            message); }} private void But_cancel_click (ObjeCT sender, EventArgs e) {this.
        Close ();
 }
    }
}

Second: Registration machine

In the same way as above, the data is matched by the same algorithm.

Using System;
Using System.Collections.Generic;
Using System.ComponentModel;
Using System.Data;
Using System.Drawing;
Using System.Linq;
Using System.Text;
Using System.Threading.Tasks;

Using System.Windows.Forms; namespace Register {public partial class Form1:form {public Form1 () {Initializeco
        Mponent ();  } public int[] M_intcode = new int[127];  Storage key public char[] M_charascii = new CHAR[25]; Storage ASCII public int[] M_intascii = new INT[25]; Store ASCII value///<summary>///initialization key (generated by modulo 9)///</summary> public void intii Ntcode () {for (int i = 0; i < m_intcode.length; i++) {M_intcode[i] =
            I% 9;
            } public string Getregisternum (string machinenume) {Intiintcode ();
            if (machinenume.length!=) return "machine code is wrong, please re-enter!"; Get ASCII via machine codecode for (int i = 1; i < m_charascii.length i++) {M_charascii[i] = Convert.tocha
            R (Machinenume.substring (i-1, 1));
            ///Through a simple algorithm, change the value of ASCII, the value of ASCII, plus the value of the initialization key for (int j = 1; j < M_intascii.length; J + +)
            {M_intascii[j] = Convert.ToInt32 (m_charascii[j]) + m_intcode[convert.toint32 (m_charascii[j))];
            } String machineascii = ""; for (int k = 1; k < m_intascii.length; k++) {if (m_intascii[k) >=-&& M_inta Scii[k] <= 57) | | (M_intascii[k] >= && m_intascii[k] <= 90) | |
                (M_intascii[k] >= && m_intascii[k] <= 122)) {Machineascii + = Convert.tochar (M_intascii[k]).  ToString ();
                    Between 0-9,a-z,a-z} else if (M_intascii[k] > 122) { Machineascii + + Convert.tochar (m_intascii[k)-10). ToString (); Greater than Z} else {machineascii + = Convert.tochar (m_intasc II[K]-9).
                ToString ();
        } return machineascii;
            } private void But_reg_click (object sender, EventArgs e) {TextBox2.Text = "";
        TextBox2.Text = Getregisternum (TextBox1.Text); } private void Btn_cancel_click (object sender, EventArgs e) {this.
        Close ();
 }
    }
}

3, return to the main interface for registration