公钥密码学：Diffie-Hellman 密钥交换

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.

Why HN likes it: It is the go-to beginner explanation of Diffie-Hellman, recommended because the paint analogy makes the idea click without prior cryptography knowledge.

“I found this video, Public key cryptography - Diffie-Hellman Key Exchange (full version), to be completely enlightening”