Messages in this thread | | | Date | Tue, 20 Aug 2002 14:51:27 +0200 | Subject | Re: [PATCH] (0/4) Entropy accounting fixes | From | Bernd Eckenfels <> |
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On Sun, Aug 18, 2002 at 11:48:58AM +0200, Ralf Baechle wrote: > On Sun, Aug 18, 2002 at 09:31:41AM +0200, Bernd Eckenfels wrote: > > > dean gaudet <dean-list-linux-kernel@arctic.org> wrote: > > > many southbridges come with audio these days ... isn't it possible to get > > > randomness off the adc even without anything connected to it? > > > > they also come with RNGs. > > I know of one soundcard RND that is simply implemented as a small > mask programmed ROM full of random numbers. That's good enough for > audio purposes but doesn't even qualify for /dev/urandom's use ...
I am taking about southbridges with random sources, not about soundchips :)
They can be used to contribute some bits to the entropy pool. I dont think they are the only source one should trust. But the specs say that they are no PNRG, and I havent heared about too disasterous results from statistical tests. So they are better than ethernet drivers, anyway.
Greetings Bernd -- (OO) -- Bernd_Eckenfels@Wendelinusstrasse39.76646Bruchsal.de -- ( .. ) ecki@{inka.de,linux.de,debian.org} http://home.pages.de/~eckes/ o--o *plush* 2048/93600EFD eckes@irc +497257930613 BE5-RIPE (O____O) When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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