public static string GetKey(int keyType, string productID, string hash)
{
string key = "" + keyType + productID[0] + SecurityKaraoke.GetMd5Hash(keyType + productID, hash);
if (key.Length > 15)
{
key = key.Substring(0, 15);
}
return(key.ToUpper());
}
public static string GetProductID(int version, string machine, string functionID, string hash)
{
string id = SecurityKaraoke.GetMd5Hash(version + machine + functionID, hash);
if (id.Length > 5)
{
id = id.Substring(0, 5);
}
return(String.Format("{0}{1}{2}{3}", version, machine, functionID, id.ToUpper()));
}
public static string GetMachineID(string hash)
{
string device = getMotherDeviceID();
string machineID = SecurityKaraoke.GetMd5Hash(device, hash);
if (machineID.Length > 5)
{
machineID = machineID.Substring(0, 5);
}
return(machineID.ToUpper());
}