David works as a Software Developer for GenTech Inc.

David works as a Software Developer for GenTech Inc. He develops a Web application named

WebApp, which displays the monthly inventory reports of the company. The company's management wants only employees in the Sales Department to have access to WebApp. They will have to be authenticated with a valid username and password. David wants to implement an authorization strategy in the application, which will require the Windows authentication mode of Web security. Which of the following modules will David use to accomplish the task?