Mobile Phone Locking Application with Cloud-Based Authentication

Develop an Android mobile application that facilitates the locking of a user's mobile phone with another mobile device using a PIN Lock mechanism. The app aims to ensure data security by integrating a cloud-based authentication system to verify the legitimacy of the other mobile phone before initiating the locking process. Additionally, the application must possess features to protect the user's data in the event of the phone being lost or stolen. The app shall implement a PIN Locking mechanism to secure the user's mobile phone. When the user initiates the locking process, the application must prompt the user to set a unique PIN code as the locking mechanism. The app shall integrate a cloud-based authentication system to verify and authenticate the legitimacy of the other mobile phone before proceeding with the locking process. The authentication system should ensure secure communication between devices.