Simple introduction to Shamir's Secret Sharing and Lagrange interpolation

A presentation part of the cryptography course at Chalmers University, 2015. Starting with simple examples, we introduce Shamir's Secret Sharing Scheme and how Lagrange interpolation fits in. I may have misspoken at some points, but that's to keep you alert :) Solution and follow up in    • Shamir's Secret Sharing - Solution and alt...