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#cloudflare#entropy#randomness

The Lava Lamps That Help Keep The Internet Secure

Tom Scott

6.7M subscribers • 29 videos on Hallway

YouTube
  • Recommended by 3 people: 1 on Hacker News and 2 in engineering communities.
  • Presented by Tom Scott

Beginner. No background in the topic needed.

4.2M views8 years ago3 recommendations

SecurityCryptography

Tom Scott explains how Cloudflare uses a wall of lava lamps to generate random numbers for securing internet encryption.

At the headquarters of Cloudflare, in San Francisco, there's a wall of lava lamps: the Entropy Wall. They're used to generate random numbers and keep a good bit of the internet secure: here's how. Thanks to the team at Cloudflare - this is not a sponsored video, they just had interesting lava lamps! There's a technical rundown of the system on their blog here: blog.cloudflare.com/lavarand-in-production-the-nitty-gritty-… Edited by Michelle Martin, youtube.com/@OnTheCrux 🟥 MORE FROM TOM: tomscott.com/ (you can find contact details and social links there too) ❓ LATERAL, free weekly podcast: lateralcast.com/ youtube.com/lateralcast/ ➕ TOM SCOTT PLUS: youtube.com/tomscottplus 👥 THE TECHNICAL DIFFICULTIES: youtube.com/techdif

Why it's here

3 people recommend this

What people say. Recommended as a clear and entertaining explanation of physical entropy sources used in cryptography.

ceph_on Hacker News • Recommends

On “A wall of lava lamps helps encrypt the internet”

There's a good Tom Scott video on this too. Like most of his stuff, it's well worth the watch. link to this video

u/stevewatson301in r/netsec • Recommends

The Lava Lamps That Help Keep The Internet Secure

u/rivermontin r/netsec • Recommends

Tom Scott - The Lava Lamps that Keep the Internet Secure

u/stdlibin r/compsci • Mentions

On “How a Wall of Lava Lamps Helps Encrypt 10% of the Internet”

Tom Scott did a video about this that's pretty good as well link to this video

Natfanon Hacker News • Mentions

On “Riot Games: Artificial Latency for Remote Competitors”

Alternatively, just do what Cloudflare does (did?), and have some cameras pointed at lava lamps0. 0: link to this video

Karellenon Hacker News • Mentions

On “The London office where swinging pendulums keep cyber threats at bay”

ObTomScott: The Lava Lamps That Help Keep The Internet Secure link to this video (Mention of the London pendulums at 2:39)

u/humodxin r/compsci • Mentions

On “How does a program to pick a random number work?”

An interesting video related to your second point: link to this video