Module 15: Authentication and Authorization

MODULE 15 · 3 LESSONS

Implement identity, sessions and permissions while keeping credentials and tokens out of dangerous storage.

Project checkpoint: Add secure account, login and ownership rules to CourseFlow.

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Module 15 learning loop

Module 15 learning loop: a practical sequence used in this lesson.

Store password verifiers safely and use hardened cookies for browser sessions.
Connect registration, verification, login, logout and protected routes with safe failure messages.
Use password hashing, session IDs, Secure cookies in one coherent implementation.
Complete this evidence-backed checkpoint: Add secure account, login and ownership rules to CourseFlow.

Lesson 15.1

Store password verifiers safely and use hardened cookies for browser sessions.

Lesson 15.2

Check permission on every protected server action using both role and resource ownership.

Lesson 15.3

Connect registration, verification, login, logout and protected routes with safe failure messages.

PROJECT CHECKPOINT

Add secure account, login and ownership rules to CourseFlow.

Write acceptance criteria for password hashing before implementation.
Keep the change small enough that a reviewer can connect it to the intended behavior.
Use the most direct check available for session IDs and save the result.
Record one decision you would keep and one you would revisit after feedback.

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