How WhatsApp Encrypts Your Messages | Build Encryption and Decryption Program

In this lesson, we write a C++ program that reads a message, encrypts it, and then decrypts it. For example: If the user inserts: Sam Adam The output is: Message Before Encryption is : Sam Adam Message After Encryption is : Uco"Cfco Message After Decryption is : Sam Adam In this video, you will learn: - How to read a full message from the user using getline - How to encrypt a message in C++ using a simple encryption key - How to decrypt the encrypted message and return it back to the original message - How character conversion works during encryption and decryption - How developers use the basic idea of encryption and decryption to protect messages - How this lesson is related to real-world messaging apps and secure communication This lesson is one of the most important beginner-friendly introductions to message encryption in C++. In real applications, the idea of encrypting and decrypting data is used to help protect messages while they are transferred between users and systems. If you are learning C++ problem solving step by step, this lesson will help you understand strings, functions, character manipulation, and the basic idea behind secure communication. This lesson 17 of Course 4: Problem Solving for Programmers using C++ (part 2) – Beginner Track ▶ 📺 Start Here – Programming Roadmap & How to Learn Programming Step by Step: https://youtu.be/2fEC8lW8nn8?si=TZ2EiYznDGE-RGJF ▶ Join the RPS community on Telegram: http://t.me/RPSDiscussionChannel #cplusplus #cpp #encryption #decryption #cybersecurity #programming #codingforbeginners #strings #realprogrammingschool