4 ms·
It's sad to see such immense effort to "extract" and "preserve" entropy, when anyone interested could have all the quality random numbers they need from simple
by rini17 10y ago
It's sad to see such immense effort to "extract" and "preserve" entropy, when anyone interested could have all the quality random numbers they need from simple and well auditable electric circuit. Somehow this is not in anyone's interest, just let's all use PRNG.
- nine_k 10y agoIsn't junction noise temperature-dependent? Aren't most hardware noise generators, like lava lamp, physically large?
- rini17 10y agoWhere did you get such impression that it must be either? There are many many possibilities, not just junction noise or lava lamps. Example: http://www.loper-os.org/?p=1427 http://www.loper-os.org/?p=1427
- DanBC 10y agoI think Cardano uses avalanche noise. http://trilema.com/2013/snsa-first-product-the-cardano/ http://trilema.com/2013/snsa-first-product-the-cardano/ > E) Entropy generator. This is an avalanche noise array, with some sanity checking in place. Have I misunderstood?
- Nomentatus 10y ago"Aren't most hardware noise generators, like lava lamp, physically large?" No: Spinthariscope, yielding RNG from fission. Safe, small.
- nullc 10y ago> Isn't junction noise temperature-dependent? Part of the point of entropy extractors is being able to extract entropy from biased sources (even adversarially biased ones, in the case of multi-source or seeded extractors).
- Ar-Curunir 10y agoWhile the supposed practical application is not well-founded, this is a very important advance in the theory of pseudorandomness.
- rini17 10y agoI reacted mostly to the Schneier bit, and similar assertions, that real RNGs aren't so necessary after all.