Date: Sat, 22 Sep 2012 01:20:32 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: RW <rwmaillists@googlemail.com> Cc: freebsd-security@freebsd.org Subject: Re: Collecting entropy from device_attach() times. Message-ID: <86lig3arpb.fsf@ds4.des.no> In-Reply-To: <20120920230133.55b63dea@gumby.homeunix.com> (RW's message of "Thu, 20 Sep 2012 23:01:33 %2B0100") References: <20120918211422.GA1400@garage.freebsd.pl> <867grqm3pt.fsf@ds4.des.no> <20120919184758.28589516@gumby.homeunix.com> <86sjadt677.fsf@ds4.des.no> <20120920230133.55b63dea@gumby.homeunix.com>
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RW <rwmaillists@googlemail.com> writes: > They key will therefore *accumulate* entropy across multiple reseeds. Forgot to address this. By definition, there can never be more entropy in Yarrow than the key size. So it *does* throw away entropy in the sense that if it accumulated, say, 900 bits of entropy pre-boot (to pick one of the numbers Pawel cited), 650 of them are wasted. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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