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RE: best way to create entropy?

daemon@ATHENA.MIT.EDU (Naslund, Steve)
Fri Oct 12 00:28:07 2012

Date: Thu, 11 Oct 2012 23:27:56 -0500
In-Reply-To: <20121012035453.GA9743@dan.olp.net>
From: "Naslund, Steve" <SNaslund@medline.com>
To: <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

I know that a popular method for generating random bit streams is to =
take radio (stellar) noise and convert it into a digital bit stream.  =
Very popular among crypto geeks.

Steven Naslund

-----Original Message-----
From: Dan White [mailto:dwhite@olp.net]=20
Sent: Thursday, October 11, 2012 10:55 PM
To: Jonathan Lassoff
Cc: North American Network Operators Group
Subject: Re: best way to create entropy?

On 10/11/12=A017:08=A0-0700, Jonathan Lassoff wrote:
>On Thu, Oct 11, 2012 at 5:01 PM, shawn wilson <ag4ve.us@gmail.com> =
wrote:
>> in the past, i've done many different things to create entropy -=20
>> encode videos, watch youtube, tcpdump -vvv > /dev/null, compiled a=20
>> kernel. but, what is best? just whatever gets your cpu to peak or are =

>> some tasks better than others?
>
>Personally, I've used and recommend this USB stick:=20
>http://www.entropykey.co.uk/
>
>Internally, it uses diodes that are reverse-biased just ever so close=20
>to the breakdown voltage such that they randomly flip state back and=20
>forth.

+1.

--
Dan White



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