@Paresh -
There is no direct integration with cert authentication and Web.config files, however, there is a work around described here that should work.
If you wish the feature to be added, you can either create an issue on its github page or push a pull-request if you already have a solution th at you would wish to contribute. Note that the SDK itself doesn’t support configuring cert authentication via web.config files, but you could file a Jira ticket and it may be added to a future release.
-Jeff