Date: Tue, 11 Sep 2012 16:09:40 -0700 From: David O'Brien <obrien@FreeBSD.org> To: d@delphij.net Cc: Arthur Mesh <arthurmesh@gmail.com>, Doug Barton <dougb@FreeBSD.org>, freebsd-rc@freebsd.org, freebsd-security@freebsd.org, RW <rwmaillists@googlemail.com>, Dag-Erling ??? <des@des.no> Subject: Re: svn commit: r239569 - head/etc/rc.d Message-ID: <20120911230940.GA90404@dragon.NUXI.org> In-Reply-To: <504FC2BD.6070402@delphij.net> References: <86sjao7q8c.fsf@ds4.des.no> <20120911205302.27484fd6@gumby.homeunix.com> <20120911200925.GA88456@dragon.NUXI.org> <504FA76A.5000209@delphij.net> <20120911211730.GB89188@dragon.NUXI.org> <504FAB87.3020701@delphij.net> <20120911215212.GA89515@dragon.NUXI.org> <504FBD15.8040907@delphij.net> <20120911224855.GE14077@x96.org> <504FC2BD.6070402@delphij.net>
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On Tue, Sep 11, 2012 at 04:01:17PM -0700, Xin Li wrote: > Situation 1: we have 45K of plain text, and only first 4k is fed to > /dev/random at about 5 bits of entropy per byte; > > Situation 2: we have 45K of plain text, compress to e.g. 25K and only > first 4k is fed to /dev/random at more than 7.6 bits of entropy per byte; Where do these bits of entropy per byte values come from? Their rather high. FYI, the Yarrow design limits the seed entropy density to a 0.5 multiplier. -- -- David (obrien@FreeBSD.org)
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