A Dive into WhatsApp's End-to-End Encryption

Abstract: We live in a generation where the world around us is witnessing technological revolutions every single day, and as a result of this, everything around us is getting digitized with the touch of technology. In order to keep up the pace of this technological revolution and help reaching this progress its zenith, one of the most important aspects that needs to be taken care of is security. One of the biggest boons of technology in the recent times has been the invention of smartphones. As smartphones started becoming more popular, affordable and easily accessible, hundreds of free messaging applications were launched, but WhatsApp emerged as the ultimate winner in the race. This paper describes one of the most important and popular features of WhatsApp, the End-to-End (E2E) encryption system, which sets it apart from most other messaging applications and is one of the reasons which helped it become so popular.