C # software registration code

Step 1. Machine code is generated based on the volume label and CPU serial number

Copy codeThe Code is as follows: // obtain the volume ID of the device's hard disk
Public static string GetDiskVolumeSerialNumber ()
{
ManagementClass mc = new ManagementClass ("Win32_NetworkAdapterConfiguration ");
ManagementObject disk = new ManagementObject ("win32_logicaldisk.deviceid =" d :"");
Disk. Get ();
Return disk. GetPropertyValue ("VolumeSerialNumber"). ToString ();
}

// Obtain the CPU serial number
Public static string getCpu ()
{
String strCpu = null;
ManagementClass myCpu = new ManagementClass ("win32_Processor ");
ManagementObjectCollection myCpuConnection = myCpu. GetInstances ();
Foreach (ManagementObject myObject in myCpuConnection)
{
StrCpu = myObject. Properties ["Processorid"]. Value. ToString ();
Break;
}
Return strCpu;
}
// Generate the machine code
Public static string getMNum ()
{
String strNum = getCpu () + GetDiskVolumeSerialNumber (); // obtain the 24-bit Cpu and hard disk serial number
String strMNum = strNum. Substring (0, 24); // extract the first 24 characters from the generated string as the machine code
Return strMNum;
}
Public static int [] intCode = new int [127]; // store the key
Public static int [] intNumber = new int [25]; // Ascii value of the stored machine code
Public static char [] Charcode = new char [25]; // stores machine code
Public static void setIntCode () // number of values assigned to the array smaller than 10
{
For (int I = 1; I <intCode. Length; I ++)
{
IntCode [I] = I % 9;
}
}

Step 2. Generate a registration code based on the machine codeCopy codeThe Code is as follows: // generate the registration code

Public static string getRNum ()
{
SetIntCode (); // initialize the 127-Bit Array
For (int I = 1; I <Charcode. Length; I ++) // store the machine code in the array
{
Charcode [I] = Convert. ToChar (getMNum (). Substring (I-1, 1 ));
}
For (int j = 1; j <intNumber. Length; j ++) // Save the ASCII value of the character to an integer group.
{
IntNumber [j] = intCode [Convert. ToInt32 (Charcode [j])] + Convert. ToInt32 (Charcode [j]);
}
String strAsciiName = ""; // used to store the registration code
For (int j = 1; j <intNumber. Length; j ++)
{
If (intNumber [j]> = 48 & intNumber [j] <= 57) // determines whether the ASCII value of a character is between 0-9.
{
StrAsciiName + = Convert. ToChar (intNumber [j]). ToString ();
}
Else if (intNumber [j]> = 65 & intNumber [j] <= 90) // determines whether the ASCII value of a character is between A-Z
{
StrAsciiName + = Convert. ToChar (intNumber [j]). ToString ();
}
Else if (intNumber [j]> = 97 & intNumber [j] <= 122) // determines whether the ASCII value of a character is a-z.
{
StrAsciiName + = Convert. ToChar (intNumber [j]). ToString ();
}
Else // determines that the ASCII value of a character is not in the above range
{
If (intNumber [j]> 122) // determines whether the ASCII value of a character is greater than z.
{
StrAsciiName + = Convert. ToChar (intNumber [j]-10). ToString ();
}
Else
{
StrAsciiName + = Convert. ToChar (intNumber [j]-9). ToString ();
}
}
}
Return strAsciiName;
}

Step 3. Check the registration status. If no registration is available, you can customize the trial.Copy codeThe Code is as follows: // <summary>
/// Check registration
/// </Summary>
Private void CheckRegist ()
{

This. btn_reg.Enabled = true;

RegistryKey retkey = Microsoft. Win32.Registry. CurrentUser. OpenSubKey ("software", true). CreateSubKey ("wxk"). CreateSubKey ("wxk. INI ");
Foreach (string strRNum in retkey. GetSubKeyNames () // determines whether to register
{
If (strRNum = clsTools. getRNum ())
{
ThControl (true );
Return;
}
}
ThControl (false );
Thread Th1 = new Thread (new ThreadStart (thCheckRegist2 ));
Th2.Start ();

}
}

/// <Summary>
/// Verification trial times
/// </Summary>
Private static void thCheckRegist2 ()
{
MessageBox. Show ("you are using a trial version. You can try this software for 3000000 times for free !", "Prompt", MessageBoxButtons. OK, MessageBoxIcon. Information );
Int32 tLong;
Try
{
TLong = (Int32) Registry. GetValue ("HKEY_LOCAL_MACHINE \ SOFTWARE \ angel", "UseTimes", 0 );
MessageBox. Show ("Thank you for using" + tLong + "Times", "prompt", MessageBoxButtons. OK, MessageBoxIcon. Information );
}
Catch
{
Registry. SetValue ("HKEY_LOCAL_MACHINE \ SOFTWARE \ angel", "UseTimes", 0, RegistryValueKind. DWord );
MessageBox. Show ("welcome new users to use this software", "prompt", MessageBoxButtons. OK, MessageBoxIcon. Information );
}
TLong = (Int32) Registry. GetValue ("HKEY_LOCAL_MACHINE \ SOFTWARE \ angel", "UseTimes", 0 );
If (tLong <3000000)
{
Int Times = tLong + 1;
Registry. SetValue ("HKEY_LOCAL_MACHINE \ SOFTWARE \ angel", "UseTimes", Times );
}
Else
{
MessageBox. Show ("trial times have arrived", "Warning", MessageBoxButtons. OK, MessageBoxIcon. Warning );
Application. Exit ();
}
}