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Date:      Tue, 24 Oct 2000 18:49:25 -0700
From:      Kris Kennaway <kris@citusc.usc.edu>
To:        Eivind Eklund <eivind@FreeBSD.org>
Cc:        Kris Kennaway <kris@citusc.usc.edu>, Warner Losh <imp@village.org>, Mark Murray <mark@grondar.za>, arch@FreeBSD.org
Subject:   Re: cvs commit: src/etc rc
Message-ID:  <20001024184925.B59218@citusc17.usc.edu>
In-Reply-To: <20001024182319.C37278@warning.follo.net>; from eivind@FreeBSD.org on Tue, Oct 24, 2000 at 06:23:19PM %2B0200
References:  <20001024124057.A4309@skriver.dk> <200010232046.e9NKkLR01463@grimreaper.grondar.za> <20001023081548.A41843@bsdwins.com> <200010232046.e9NKkLR01463@grimreaper.grondar.za> <200010232321.RAA11268@harmony.village.org> <20001024124057.A4309@skriver.dk> <200010241256.GAA15067@harmony.village.org> <20001024162445.A58246@warning.follo.net> <20001024083111.D58506@citusc17.usc.edu> <20001024182319.C37278@warning.follo.net>

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On Tue, Oct 24, 2000 at 06:23:19PM +0200, Eivind Eklund wrote:
> (Moving to -arch)
> 
> On Tue, Oct 24, 2000 at 08:31:11AM -0700, Kris Kennaway wrote:
> > On Tue, Oct 24, 2000 at 04:24:45PM +0200, Eivind Eklund wrote:
> > 
> > > Can't we just crypt the data with a strong cipher (or, preferably, two or
> > > three strong ciphers) and a key aquired by using random data from Yarrow
> > > before writing it out?  That would not expose state, assuming we trust the
> > 
> > How would you know the key when you want to read it back in after the
> > next reboot?
> 
> You don't know the key.   This is *entropy* - you don't need to recover it
> exactly :-)

This doesnt buy you anything, since the Yarrow algorithm already does this.

Kris


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