Infrastructure
Authentication
Authentication is the step where a system works out who you are. Passwords, codes texted to your phone, fingerprint scans, and sign-in-with-Google buttons are all just different ways of answering that one question. It always happens before any decision about what you are allowed to do.
This entry has not yet received a source-reviewed lesson update.
Free complete lesson
This definition and the complete practical lesson are free. The interactive reader loads the lesson examples without a membership.