private static string GetMachineID(string appId, string hdInfo)
{
string id = null;
try
{
using (var regkey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(REG_PATH))
{
if (regkey != null)
{
string reg_hdInfo = (string)regkey.GetValue(HD_INFO_KEY, null);
if (!string.IsNullOrEmpty(reg_hdInfo))
{
reg_hdInfo = DesUtils.Decrypt(reg_hdInfo, MyDevice_DES_KEY);
}
if (reg_hdInfo == hdInfo)
{
id = (string)regkey.GetValue(appId, null);
if (!string.IsNullOrEmpty(id))
{
string deskey = hdInfo.Substring(4, 4) + hdInfo.Substring(12, 4);
id = DesUtils.Decrypt(id, deskey);
}
}
regkey.Close();
}
}
}
catch { }
return(id);
}
private static void SetMachineID(string appId, string id, string hdInfo)
{
if (!string.IsNullOrEmpty(id))
{
try
{
using (var regkey = Microsoft.Win32.Registry.LocalMachine.CreateSubKey(REG_PATH))
{
string s = DesUtils.Encrypt(hdInfo, MyDevice_DES_KEY);
regkey.SetValue(HD_INFO_KEY, s, Microsoft.Win32.RegistryValueKind.String);
string deskey = hdInfo.Substring(4, 4) + hdInfo.Substring(12, 4);
s = DesUtils.Encrypt(id, deskey);
regkey.SetValue(appId, s, Microsoft.Win32.RegistryValueKind.String);
regkey.Flush();
regkey.Close();
}
}
catch { }
}
}
