3 ms·
You’d have to get a picture in the exact same angle, which is unlikely.
by Operyl 9y ago
You’d have to get a picture in the exact same angle, which is unlikely.
- jstanley 9y agoIt leaks information at any angle.
- stouset 9y agoDoesn’t really matter. With modern CSPRNGs, even if one input is compromised you’re still as strong as the remaining entropy (as long as those sources are statistically independent from the compromised one). If this was the only source of randomness it might be a problem, but if they’re `cat`ting it into `/dev/random` as an external source, it can only really improve things. Even if someone were to compromise the feed from the office to the datacenter, it wouldn’t matter since they’d have to know the internal RNG state in order to “negate” its randomness with the lava lamp feed. If they have that, you’re already lost anyway.
- code_duck 9y agoYou’d also have to be using very similar equipment and know precisely how they derive their random numbers from the image.