Secret Key Exchange (Diffie-Hellman) - Computerphile
Why the open web links it
Explains the Diffie-Hellman key exchange method for secure communication over insecure channels.
Linked by 13 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including freecodecamp.org, tuni.fi, betterdev.link, hdingles.com, informationsecurityasia.com.