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 { } } }