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I also remember reading somewhere about some online pages that offer seed
numbers generated by measing room noise by an open window near a busy
street or something random like that. Interesting stuff... I remember how
odd it seemed the way some of the PGP packages we evaluated collected
'entropy data' while the key pairs were being created (random keystrokes on
the keyboard until a certain buffered was filled in the case of two
packages).







"McKown, John"
<John.Mckown@heal
thmarkets.com> To
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cc

12/04/2008 05:21 Subject
PM RE: random number generator oddity


Please respond to
Midrange Systems
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-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
ChadB@xxxxxxxxxxxxxxxxxxxx
Sent: Thursday, December 04, 2008 3:51 PM
To: Midrange Systems Technical Discussion
Subject: Re: random number generator oddity


I'll be interested to hear on this one... I don't know any
specifics on
your question, but my reading has always led me to believe
that it's very
difficult to have a program that gives truly random results...

Very true. Most are really called "pseudo-random" generators. They are
called pseudo random because for a given seed value, they will always
return the same series of numbers. They are declared "good enough" when
the series of numbers has a high cardinality before repeating and when a
number of statistical functions declare them "random" (I don't remember
the functions).

I vaguely remember that Intel was going to have an instruction which
would give a nearly truly random number by measuring something
(temperature?) that simply could not be predetermined.

--
John McKown
Systems Engineer IV
IT

Administrative Services Group

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