Create a .php file for Woocommerce Subscription plugin

A project regarding wordpress Woocommerce Subscription plugin. I have a website [login to view URL] built with wordpress, woocommerce, Woocommerce Subscriptions plugin. For reference [login to view URL] I need a [login to view URL] file through which I will post data (email_id=“user_email_id”, password=“user_password”) like [login to view URL]”user_email_id”&password=”user_password” Both email id and password will be AES 256 bit encrypted string with encryption key: “FLIeLYx3A9MK” The following tasks needs to be performed by [login to view URL] 1) Step1: Decrypt the email by AES 256 method with key: “FLIeLYx3A9MK” 2) Step2: Verify whether email id and password are correct or not from wordpress table “users”. If email id or password is wrong then [login to view URL] will return “invalid id and password” message. 3) Step3: If email id and password are correct then, [login to view URL] will check whether that user have any “subscription product” or not from wordpress table “posts”. If no subscription product is entitled with that user then [login to view URL] will return “no subscription found” message. 4) Step4: If any subscription product is found with that user then [login to view URL] will return “product_id , post_date_gmt (trial_end) , post_date_gmt (payment) , post_date_gmt (expiration)” details in output message. Attached .xlsx files as snapshot of “users” and “posts” tables.