How Cloudflare and Wall Street Are Helping Encrypt the Internet Today
Sep 14, 2019Nick Sullivan
Summary
This post details the use of lava lamp footage from the NYSE trading floor as an additional seed for Cloudflare's LavaRand entropy generation system. It explains that true randomness is impossible with computers and that entropy generators are needed. LavaRand captures video of lava lamps, amplifies the randomness, and mixes it with other entropy sources to create a cryptographically-secure source of randomness. The post also mentions the League of Entropy, a consortium of organizations generating verifiable randomness.
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