Tuesday, November 07, 2017

The Lava Lamps That Help Keep The Internet Secure

What in the world do lava lamps have to do with internet security? It has to do with random numbers. Machines aren't good at generating random numbers, but flowing liquid is about as random as you get. An entire wall of lava lamps moving colored liquid around is is unpredictable enough to generate random numbers. Learn how it's done from Tom Scott, who is still in California finding us interesting things to learn about. This is from Cloudflare in San Francisco.

1 comment:

MuddyValley said...

Wouldn’t a high res. photo of a couple of square yards of beach sand do the same thing & be a lot cheaper? Just rake it for the next capture, or do a few daily shots after the tides.