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

Matt Mackall
2007-12-04T18:03:42Z

On Tue, Dec 04, 2007 at 04:55:02PM +0000, Alan Cox wrote:
> > 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.

Pointer, please.

--
Mathematics is the supreme nostalgia of our time.