This is pretty cool! -- what other fun physical sources of randomness are in use at large companies?
Jason Choi
 @mrjasonchoi
21 Jun 2022
I was today years old when I found out Cloudflare has a wall full of lava lamps they feed into a camera as a way to generate randomness to create cryptographic keys
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This used to be from a startup 29 years ago :)
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Cool, what startup was this?
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not sure... I just remember it being discussed during my undergrad times that they "sell" random numbers :)
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SGI invented it (and had a patent): en.wikipedia.org/wiki/Lavara…
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Replying to @bilcorry @realhamed @stub_AS
BTW, next time you’re in SF, swing by the Cloudflare office. The lamps are in their reception area, you don’t need to be granted access to see them. When I stopped by, they gave me free swag.

Jun 22, 2022 · 2:52 AM UTC

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Replying to @bilcorry @stub_AS
I’ll first have to get the swags from CF friends though 😃
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