End-to-End Encryption for Chat App with Dynamic Encryption Key

Abstract

With millions of users’ End-to-End encryption has been converted into an ordinary characteristic in popular mobile chat relevance’s (apps). Most imperative chat apps have added end-to-end encryption characteristics in the two years, several mutually with Facebook Messenger, and What’s App. This paper illustrates how dissimilar concerns in an app can add up to the probable for severe vectors adjacent to end-to-end solitude despite their creature several layers of security. To overcome the app is anticipated in the chats are secured by the dynamic key encryption by md5 algorithm. Only user 1 and user 2 are going to know the message this secures the chats from unwanted users. In the middle attacker and server, those who are trying to attack will get to know the garbage value of message. The XOR operation is used for encrypting the message and to provide security for user1 and user2 of the message. The md5 is utilized as key the key is engendered for every message by three parameters and this gives next altitude of security to the chat app. If the key is hacked by the attacker, the second key for the message is tricky to hack this augment the involvedness of the app and secures much more. In exacting, the app illustrates how a dynamic key is utilized for encryption which protects the message with facilitate of a dynamic key. It secures the chat app by generating the key dynamically.