A deep dive into JWT authentication, AES-256-GCM encryption, SignalR, and production security...
A deep dive into JWT authentication, AES-256-GCM encryption, SignalR, and production security patterns.
Introduction
Real-time messaging apps are everywhere, but most tutorials gloss over the hard parts — the security. In this post I'll walk you through SecureChat, a production-grade messaging app I built with .NET 8 and Angular 18. By the end you'll understand:
How to encrypt messages at rest using AES-256-GCM
How to build a JWT + rotating refresh token authentication flow
How to Build Your Own Real-time Chat App by Using a Mobile App Builder
Building a Video Chat App: Features, Tech Stack and Costs
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Discord enables end-to-end encrypted voice and video calling for every user | TechCrunch
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