028. hashing: creating the digital fingerprint (ks4)
Discover how hashing algorithms create unique digital fingerprints to securely store passwords and verify the integrity of important files.
When you create a password for a website, the company should never actually save your exact word. Instead, they store a mathematically scrambled version of it called a hash. In this lesson, we will uncover how hashing algorithms work. You will see how these one-way mathematical functions create unique digital fingerprints to protect our passwords and verify that our files have not been tampered with.
Last modified: March 25th, 2026
