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> I'm surprised to be reading justifications that amount to "it's been deployed for several years now, so we think it's OK", I'm not making any claims or justi
by zx2c4 5y ago
> I'm surprised to be reading justifications that amount to "it's been deployed for several years now, so we think it's OK",
I'm not making any claims or justifications about it being good or not. Just a simple statement that Linus put it there, and there it is, and it's been that way for a while. I even referred to it as "voodoo". As I mentioned in the post, 5.18 didn't change anything about entropy sources and gathering. Certainly trying to see more rigorously whether or not the Linus Jitter Dance is defensible would make for a worthwhile research project.
- er4hn 5y agoAny comments about how related the Linus Jitter Dance (btw, glad to see that djb isn't the only one making new dance moves..) is to JitterRNG: https://www.chronox.de/jent.html https://www.chronox.de/jent.html ? The PDF linked to on the page goes into more detail but that is measured across a number of CPUs and has good performance in both amount and entropy quality produced. You do need to measure it per CPU, but it does comply with SP 800-90B which is what the US Gov considers the standards for randomness.