Re: DakaRand

[Jeffrey Walton <noloader () gmail com>]

On Sun, Aug 19, 2012 at 6:12 PM, Dan Kaminsky <dan () doxpara com> wrote:
> On Sun, Aug 19, 2012 at 3:03 PM, Ben Laurie <ben () links org> wrote:
> > On Sun, Aug 19, 2012 at 9:28 PM, Dan Kaminsky <dan () doxpara com> wrote:
> > > On Sun, Aug 19, 2012 at 10:13 AM, Ben Laurie <ben () links org> wrote:
> > > > On Sun, Aug 19, 2012 at 5:42 PM, Dan Kaminsky <dan () doxpara com> wrote:
> > > > > entropy gathering has gotten *worse* (via abandonment of interrupts),
> > > > > not
> > > > > better.
> > > >
> > > > Entropy gathering in _one particular OS_. Credit where its due, please.
> > >
> > >
> > > My understanding is that bad keys were detected on more than just Linux,
> > > which implies starvation on everything on everything not out of Redmond.
> > >
> > > What interesting approaches are you aware of that deserve credit?  Not a
> > > rhetorical question, I'm genuinely curious.
> >
> > I was referring to the abandonment of interrupts in Linux. You think
> > that other OSes have got worse at entropy gathering? And when did
> > "more than Linux" start implying "not Windows"?
>
>
> My assumption is that the other Unixes weren't looking at interrupt timing
> to begin with, i.e. they've always been as starved for entropy as Linux
> eventually became.  That being said, does VXWorks even *have* an OS provided
> strong random number generator?
>
> Windows has CryptGenRandom, which AFAIK doesn't block, and survives
> everything but VM suspend/restore.

A bit dated:
* Analysis of the Linux Random Number Generator, eprint.iacr.org/2006/086.pdf
* Cryptanalysis of the Random Number Generator of the Windows
Operating System, eprint.iacr.org/2007/419.pdf

Most recent analysis of Linux RNG (AFAIK):
* Mining Your Ps and Qs: Detection of Widespread Weak Keys in Network
Devices, https://factorable.net/paper.html

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