11 ms·
Two are close I think. A capped webcamera, CCDs pick up enough stray electrons to be reliable source of entropy. A old cheap radio tuned to static plugged int
by ogre_codes 6y ago
Two are close I think.
A capped webcamera, CCDs pick up enough stray electrons to be reliable source of entropy.
A old cheap radio tuned to static plugged into your microphone port.
https://www.mentalfloss.com/article/81946/7-sources-randomness https://www.mentalfloss.com/article/81946/7-sources-randomne...
- BelenusMordred 6y agoThis is not a good idea for the uninitiated and is on par with rolling your own encryption algorithm to send highly sensitive data around the world. For the price GP mentioned there's a dozen vetted opensource commercial options in the bottom half of that range.
- ogre_codes 6y agoThe uninitiated have zero business sending highly sensitive data around the world in general.
- BelenusMordred 6y agoAnd yet they still do it daily. This is why secure-by-default should always be the norm.
- saithound 6y ago> webcamera, CCDs pick up enough stray electrons to be reliable source of entropy. Ironically, this is the same setup as the lavalamps, but without having to pay for the lava lamps.
- ogre_codes 6y agoI believe they figured out the lens cap hack when there was a lava lamp failure.
- brodie 6y agoI’m trying to envisage what different lava lamp failures might look like, and I’ve gotta say, there are some entertaining possibilities in that idea.
- phendrenad2 6y agoBoth the radio and the CCD seem like something a determined actor could undermine. Transmitting a directional pop of radio static at just the right moment, or whatever causes CCDs to show static (x-rays?)
- faeyanpiraat 6y agoIf the bad guys can point an X-Ray gun at your stuff, random numbers are probably not going to be your biggest issue. :)
- ogre_codes 6y agoIf your attacker can stage a sophisticated attack on your entropy source and your budget is $100, you are screwed regardless.