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
1
1
14
This used to be from a startup 29 years ago :)
2
3
Cool, what startup was this?
1
not sure... I just remember it being discussed during my undergrad times that they "sell" random numbers :)
1
Replying to @realhamed @stub_AS
SGI invented it (and had a patent): en.wikipedia.org/wiki/Lavara…

Jun 22, 2022 · 2:50 AM UTC

2
2
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.
1
3
more replies
Replying to @bilcorry @realhamed
Thanks for sharing that very interesting!
2