Your sole purpose in Authentication is to try with all your might to disprove someone's identity without them noticing. Do it in milliseconds? Even better.

Why disprove instead of prove? Because it's easier to probe negatively. If all your challenges fail, you know w/o a shadow of a doubt they are who they claim! That's a win.

So every method, creation, and evolution in Authentication & Authorization (Auth & Autho)? It's about making that disproving process as painless and efficient as possible.

In this handbook, I'll take you step-by-step: from the very beginning (salt, pepper, the works) to building a mock auth library, to using auth-as-a-service backends!

After this? You'll handle any auth/autho situation. Want to roll your own auth? Sure.

Why this handbook?



I remember my first job. Fresh meat. Got handed this gem: "Redesign authentication and authorization. Ditch AWS federation. Implement whatever you want!"

If you've never done serious auth or payments? Let me tell you: it's dreadful. A nightmare you wish you could wake up from.

Think about it! One mistake? The entire system's exposed. One mistake? Founders locked out of a VC pitch!

Yeah, auth is up there with payments on the nightmare scale. That experience? It made me obsessed. Fell in love with the concept. Now I want the same for you!

Who knows? Maybe you'll be the one to invent the next sub-10ms probe.