End-To-End Encryption on the Instant Messaging Application Based Android using AES Cryptography Algorithm to a Text Message

Instant Messaging applications have become a common thing used by people, with the increasing popularity of smartphones with the support of various application functions. One of the most popular applications is an instant messaging application with a text message feature. However, the communication media is not always safe from attack sniffers. Symantec Enterprise Security analysis, threats to eavesdropping or wiretapping ranks first in the assault case against instant messaging. For that, how to maintain the security of message data on the communication media of smartphone users from sniffer attacks? One of the solutions uses end-to-end encryption. The encryption algorithms used in E2EE implementations may vary. In this study, the Advanced Encryption Standard (AES) cryptographic algorithm is used in this study. The study results are in the form of designing and building an instant messaging application on the Android mobile platform that can encrypt and decrypt text messages to improve security services on instant messaging applications.