Software license key and activation, licenseactivation

Software license key and activation, licenseactivation

Http://stackoverflow.com/questions/16222674/software-license-key-and-activation
Https://github.com/Labs64
Http://www.codeproject.com/Articles/11012/License-Key-Generation
Https://ellipter.com/
Https://technet.microsoft.com/en-us/library/dd346641 (v = ws.10). aspx
Https://code.msdn.microsoft.com/windowsapps/Product-Key-Activation-to-16c92174/view/SourceCode
Https://activatar.codeplex.com/
Http://dotlicense.codeplex.com/
Http://www.codeproject.com/Articles/15496/Application-Trial-Maker
Http://www.c-sharpcorner.com/article/a-simple-approach-to-product-activation/
Http://www.codeproject.com/Articles/35009/How-to-Generate-and-Validate-CD-Keys-for-your-Soft
Https://licensekeygenerator.codeplex.com/

Http://softwareprotector.codeplex.com/

Http://skgl.codeplex.com/

Http://dotlicense.codeplex.com/

 

public static class Activation{    #region  Redegit Key    public static  void MakeRegeditActivationCode()    {        Registry.CurrentUser.CreateSubKey(@"SOFTWARE\Activation");    }    public static string ReadRegeditKey()    {        try        {            RegistryKey myKey = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Activation", true);            return myKey.GetValue("ActivationCode").ToString();        }        catch        {            SetRegeditKeyValue("");            return null;        }    }    public static void SetRegeditKeyValue(string value)    {        RegistryKey myKey = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Activation", true);        myKey.SetValue("ActivationCode", value, RegistryValueKind.String);    }    #endregion    #region Get Hardware Information    public static string GetMacAddress()    {        string macAddresses = "";        foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())        {            macAddresses = nic.GetPhysicalAddress().ToString();            break;        }        return macAddresses;    }    public static string GetCpuId()    {        string cpuid = null;        try        {            ManagementObjectSearcher mo = new ManagementObjectSearcher("select * from Win32_Processor");            foreach (var item in mo.Get())            {                cpuid = item["ProcessorId"].ToString();            }            return cpuid;        }        catch        {            return null;        }    }    #endregion    #region Hash Function    public static string MyCustomHash(string input)    {        System.Security.Cryptography.MD5CryptoServiceProvider x = new System.Security.Cryptography.MD5CryptoServiceProvider();        byte[] bs = System.Text.Encoding.UTF32.GetBytes(input);        bs = x.ComputeHash(bs);        System.Text.StringBuilder s = new System.Text.StringBuilder();        int select = 1;        foreach (byte b in bs)        {            switch (select)            {                case 1:                    s.Append(b.ToString("x4").ToLower());                    break;                case 2:                    s.Append(b.ToString("x3").ToLower());                    break;                case 3:                    s.Append(b.ToString("x2").ToLower());                    break;                case 4:                    s.Append(b.ToString("x1").ToLower());                    break;                default:                    break;            }            select++;            if (select > 4) select = 1;        }        string password = s.ToString();        return password;    }    #endregion}