Re: [PATCH] (0/4) Entropy accounting fixes

From: Linus Torvalds (
Date: Sat Aug 17 2002 - 23:53:46 EST

On Sat, 17 Aug 2002, Oliver Xymoron wrote:
> But it will get data of _equal quality_ to the current approach from
> /dev/urandom.

So what?

If you make /dev/random useless ("but you can use /dev/urandom instead")
then we should not have it.

> > Are you seriously trying to say that a TSC running at a gigahertz cannot
> > be considered to contain any random information just because you think you
> > can time the network activity so well from the outside?
> Yes. The clock of interest is the PCI bus clock, which is not terribly
> fast next to a gigabit network analyzer.

Be realistic. This is what I ask of you. We want _real_world_ security,
not a completely made-up-example-for-the-NSA-that-is-useless-to-anybody-

All your arguments seem to boil down to "people shouldn't use /dev/random
at all, they should use /dev/urandom".

Which is just ridiculous.


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This archive was generated by hypermail 2b29 : Fri Aug 23 2002 - 22:00:14 EST