4 ms·
I've often visualized a Trouble Pop-o-matic[0] hooked to a webcam and a solenoid. The solenoid would pop the die, and simple computer vision could count the pip
by stephengillie 10y ago
I've often visualized a Trouble Pop-o-matic[0] hooked to a webcam and a solenoid. The solenoid would pop the die, and simple computer vision could count the pips or number on the die. I'm unsure how many would be needed to make SSL work.
[0] http://i.imgur.com/fL9Bg0M.jpg http://i.imgur.com/fL9Bg0M.jpg
- VMG 10y agoWhy not just put your cat in front of it and use sha3 on the image?
- pbhjpbhj 10y agoJust capture an image from any webcam. I seem to remember something like SSL cert creation using mouse movement for entropy seeding.
- crawlerie 10y agoThat would be PuTTYgen[1] actually. [1]: http://www.chiark.greenend.org.uk/~sgtatham/putty/ http://www.chiark.greenend.org.uk/~sgtatham/putty/
- gcp 10y agoPGP/GPG traditionally did this too.
- pbhjpbhj 10y agoAh, I think that's where I used it, when trying PGP for mail signing.
- VMG 10y agoWell if it's pure black or white or sth like that, it's within the reach of brute-forcing. Ideally it should be private and contain some amount of entropy.
- bootload 10y ago"I've often visualized a Trouble Pop-o-matic[0] hooked to a webcam and a solenoid." I've had the exact same idea, derived from a machine to roll dice. I was going to use a simple motor rotating with a cam, beneath a die in a small enclosed box. Stops after N cam rolls, snaps a picture of the die face, bit of OCR and continues. You could generate quite a few random numbers using say two 32 side dies. A simpler method with less moving parts would be what you've described. I remember playing this game with a dice enclosed with a spring. Press it down and the spring bent, popped back and the dice rolled.
- ricardobeat 10y agoCheck random.org - they go the easy route and use antennas to capture atmospheric noise as input.