Re: Why does reading from /dev/urandom deplete entropy so much?

From: Alan Cox
Date: Tue Dec 04 2007 - 12:00:42 EST


> cryptographically strong stream it'll provide when /dev/random is
> tapped? In principle, this'd leave more entropy available for
> applications that really need it, especially on platforms that don't
> generate a lot of entropy in the first place (servers).


As reported about a month ago, the evidence is that the /dev/random
stream is not cryptographically strong. Collecting uuids generated from
the kernel uuid random generator from the random generator in the kernel
shows abnormal patterns of duplicates.

Alan
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