End-to-End Encrypted Chat with the Web Crypto API

The tutorial outlines a basic approach to implementing end-to-end encryption in web applications using JavaScript and the Web Crypto API, emphasizing the educational nature of the content and the need for security professional guidance. It details key concepts such as generating cryptographic key pairs, deriving symmetric keys for encryption and decryption, and employing the AES-GCM algorithm for secure data transmission, while also cautioning against creating custom encryption protocols. The tutorial walks through integrating these encryption techniques into a chat application using Stream Chat's components, covering the setup of user identities, public key sharing, and message encryption and decryption processes. It concludes by acknowledging that while this implementation provides a foundational understanding, additional security measures and expert consultation are necessary for robust real-world applications.