Building an E2EE Chat App in Flask - Part 1: Why Encryption Matters

Hey everyone! I'm building an encrypted chat application in Flask and documenting the journey. Here's Part 1.

Why E2EE Matters

Most messaging apps claim to be secure, but they're not. Your messages sit on their servers where anyone with access can read them.

End-to-End Encryption (E2EE) = only you and the recipient can read messages. The server can't see anything.

Example:

WhatsApp uses E2EE. Facebook Messenger doesn't. Your choice matters.

Why I Built This

I wanted to understand encryption by building it, not just reading about it. This project taught me way more than any tutorial.

What's Next

Part 2: How to handle passwords safely without storing them in plain text.

Questions? Drop them in comments!