Date: Tue, 11 Sep 2012 13:28:51 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Doug Barton <dougb@FreeBSD.org> Cc: Arthur Mesh <arthurmesh@gmail.com>, freebsd-rc@freebsd.org, obrien@freebsd.org, freebsd-security@freebsd.org, RW <rwmaillists@googlemail.com> Subject: Re: svn commit: r239569 - head/etc/rc.d Message-ID: <86sjao7q8c.fsf@ds4.des.no> In-Reply-To: <504EDC67.9070700@FreeBSD.org> (Doug Barton's message of "Mon, 10 Sep 2012 23:38:31 -0700") References: <50450F2A.10708@FreeBSD.org> <20120903203505.GN1464@x96.org> <50451D6E.30401@FreeBSD.org> <20120903214638.GO1464@x96.org> <50453686.9090100@FreeBSD.org> <20120904220754.GA3643@server.rulingia.com> <20120906174247.GB13179@dragon.NUXI.org> <20120906230157.5307a21f@gumby.homeunix.com> <20120906224703.GD89120@x96.org> <50493480.8060307@FreeBSD.org> <20120911061530.GA77399@dragon.NUXI.org> <504EDC67.9070700@FreeBSD.org>
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Doug Barton <dougb@FreeBSD.org> writes: > 1. Pseudo-randomize the order in which we utilize the files in > /var/db/entropy There's no need for randomization if we make sure that *all* the data written to /dev/random is used, rather than just the first 4096 bytes; or that we reduce the amount of data to 4096 bytes before we write it so none of it is discarded. My gut feeling is that compression is better than hashing for that purpose, but at this point I'd be more comfortable if someone with an academic background in either cryptography or statistics (cperciva@?) weighed in. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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