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Date: Mon, 23 Oct 2000 10:18:16 +0200
From: Ignatios Souvatzis <ignatios@theory.cs.uni-bonn.de>
To: tech-security@netbsd.org, tech-kern@netbsd.org
Subject: Re: replace kernel random number function
Message-ID: <20001023101816.A19867@theory.cs.uni-bonn.de>
References: <v6zojwhiml.fsf@kechara.flame.org> <Pine.GSO.4.21.0010222248360.26027-100000@rfhpc8320.fh-regensburg.de>
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In-Reply-To: <Pine.GSO.4.21.0010222248360.26027-100000@rfhpc8320.fh-regensburg.de>; from hubert.feyrer@informatik.fh-regensburg.de on Sun, Oct 22, 2000 at 10:50:08PM +0200


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On Sun, Oct 22, 2000 at 10:50:08PM +0200, Hubert Feyrer wrote:
> On 22 Oct 2000, Michael Graff wrote:
> > > Will that give us random(3) -> random(2)?
> >=20
> > No more than we have md5(2)  :)
>=20
> and rijndael_*(2)?
>=20
>=20
> > A syscall for that would be a bad idea.
>=20
> Why - because passing the ammount of data between userland and kernel and
> back is too much overhead?

Partially. Even more: the number of context switches needed for a function
that can be done in userland without problems.

Regards,
	-is

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