Diffie-Hellman Cryptography: Basics

This lecture covers the basics of Diffie-Hellman cryptography, including algorithms for big numbers, the ring of residues modulo n, orders in a group, monoids, and the Diffie-Hellman key agreement protocol. It explains how to perform addition and multiplication with big numbers, define a monoid, and use the Double-and-Add algorithm. The lecture also introduces the concept of square-and-multiply in the context of cryptographic operations.