HackerTube / Video
Diffie-Hellman Key Exchange
Art of the Problem

A short explainer on the history and mechanics of public key cryptography and the Diffie-Hellman key exchange. It uses a mixing-paint-colors analogy to show how two parties can agree on a shared secret in public.
It is the go-to beginner explanation of Diffie-Hellman, recommended because the paint analogy makes the idea click without prior cryptography knowledge.
11 Hacker News mentions · 2016–2024