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Learning Objectives & Key Takeaways
0 / 4 Completed- Understand Authentication core architecture and runtime execution model
- Audit real-world latency, throughput benchmarks, and memory footprint
- Implement zero-downtime deployment patterns with resilience guards
- Verify code snippets and architect blueprints against production SLOs
Practise it next
Authentication interview questions, quiz and handbook in your Learning Dashboard
What you will learn
- Server sessions in httpOnly cookies are simple and easy to revoke.
- JWTs suit stateless APIs but need short lifetimes and rotation.
- Passkeys remove passwords and resist phishing.
Who are you, and can you prove it?
Authentication answers who a user is; authorisation answers what they may do. Mixing them up is the root of many security bugs.
Most apps today combine a few building blocks: a login method (password, OAuth, passkey), a way to remember the user (session cookie or token) and checks on every request.
In the rest of this story
- Sessions versus tokens
- A safe session cookie
- Checklist
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