Provide me A unique product plugin Woocommerce

------ AUTOMATIC BIDS WILL BE REJECTED ------ Hi Everyone, I need a plugin or code or anything that allows me create unique products. For Example If Upload a product named 'AVG Licence Key', It will have many keys in it but whenever user buys the product 'AVG Licence Key', There will be a unique key given to the buyer everytime he makes a purchase. So If any one knows what I am talking about, Please reply with your best quote.