Nanoscale Random Number Circuit to Secure Future Chips
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From: Phoenix on 29 Jun 2010 09:50 To read this: http://www.technologyreview.com/computing/25670/
From: Mok-Kong Shen on 2 Jul 2010 03:17 Phoenix wrote: > http://www.technologyreview.com/computing/25670/ The last paragraph of this naturally relativitize the matter somewhat, albeit it's certainly an advancement to be well appreciated. In principle the issue is a quest for "absolute" perfection, which evidently is a never-ending task logically. M. K. Shen
From: Joseph Ashwood on 2 Jul 2010 07:48 "Phoenix" <ribeiroalvo(a)gmail.com> wrote in message news:e6288217-0933-47da-a62f-f306882a6be6(a)w12g2000yqj.googlegroups.com... > To read this: > > http://www.technologyreview.com/computing/25670/ Nothing new there, in fact http://www.cryptography.com/public/pdf/IntelRNG.pdf is an analysis from 1999 of an Intel RNG built into the CPU. So even for Intel this is at least a decade old. Joe
From: MrD on 2 Jul 2010 12:17 Joseph Ashwood wrote: > "Phoenix" <ribeiroalvo(a)gmail.com> wrote in message > news:e6288217-0933-47da-a62f-f306882a6be6(a)w12g2000yqj.googlegroups.com... > > > >> To read this: >> >> http://www.technologyreview.com/computing/25670/ > > Nothing new there, in fact > http://www.cryptography.com/public/pdf/IntelRNG.pdf is an analysis > from 1999 of an Intel RNG built into the CPU. So even for Intel this > is at least a decade old. The 1999 circuit uses two free-running oscillators to generate the bits; this one apparently uses a flaky gate, to produce bits *much* faster than the device in the Pentium could. I never had much confidence in the method using two oscillators; it seems to be rooted in the butterfly effect, rather than in randomness arising from quantum effects (maybe someone can convince me they are equivalent). I'm not sure about the "flaky gate" method; I imagine its unpredictability could originate in quantum randomness, or it could have other origins. I'd need to know more. -- MrD.
From: MrD on 2 Jul 2010 12:44
MrD wrote: > > I'm not sure about the "flaky gate" method; I imagine its > unpredictability could originate in quantum randomness, or it could > have other origins. I'd need to know more. Rereading (I should have done that before my last post - sorry), I see it's thermal noise, which I believe is not quantum in origin, but is still to all intents and purposes unpredictable. -- MrD. |