This is a submission for DEV Computer Science Challenge v24.06.12: One Byte Explainer.

Explainer

In medieval times, visiting the king's palace, only nobles and royals can enter the Castle (Authentication) and Only royals can access the royal library (Authorization). Authentication verifies identity, while authorization grants specific permissions.

Additional Context

These principles are fundamental in modern cybersecurity practices, ensuring both the security of sensitive information and the integrity of user identity.
Just like the castle scenario, modern systems often use role-based access control (RBAC), where roles determine access levels.