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Re: Entropy Estimations for die and pass phrases

From Paulo Marques <pmarques@grupopie.com>
Newsgroups sci.crypt
Subject Re: Entropy Estimations for die and pass phrases
Date 2015-10-19 15:24 +0100
Organization Aioe.org NNTP Server
Message-ID <n02ue2$68e$1@speranza.aioe.org> (permalink)
References <op.x6oirrzqwei6gd@phenom-pc> <n012j8$2mto$1@adenine.netfront.net>

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On 18-10-2015 22:22, Karl-Uwe Frank wrote:
> On 18.10.15 04:05, David Eather wrote:
>> Just a short table of entropy estimates (Shannon entropy for the purest
>> hair splitters)
>>
>> 6 sided dice 2.58 bits per throw
>> 8 sided dice 3.99 bits per throw
>> 10 dided dice 3.32 bits per throw
>>
> How about using a 16 side hex dice and drawing a 128 bit result as
> keyword? This way one can use the full range of all 256 chars of the
> ASCII set.
>
> https://mccormick.cx/news/entries/3d-printable-sixteen-sided-hexadecimal-die

This "die" looks awful! It doesn't seem to try to give the same 
probabilities for every symbol at all.

> https://www.thediceshoponline.com/dice/4411/Hexidice-D16-Hexadecimal-Dice

This one seems much, much better.

-- 
Paulo Marques - www.grupopie.com

"You're just jealous because the voices only talk to me."

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Thread

Entropy Estimations for die and pass phrases  "David Eather" <eather@tpg.com.au> - 2015-10-18 12:05 +1000
  Re: Entropy Estimations for die and pass phrases Robert Wessel <robertwessel2@yahoo.com> - 2015-10-18 00:14 -0500
    Re: Entropy Estimations for die and pass phrases "David Eather" <eather@tpg.com.au> - 2015-10-18 16:40 +1000
  Re: Entropy Estimations for die and pass phrases  "David Eather" <eather@tpg.com.au> - 2015-10-18 16:41 +1000
  Re: Entropy Estimations for die and pass phrases Karl-Uwe Frank <karl.frank@freecx.co.uk> - 2015-10-18 23:22 +0200
    Re: Entropy Estimations for die and pass phrases Paulo Marques <pmarques@grupopie.com> - 2015-10-19 15:24 +0100
  Re: Entropy Estimations for die and pass phrases Jeffrey Goldberg <nobody@goldmark.org> - 2015-10-19 00:17 -0500
    Re: Entropy Estimations for die and pass phrases rpw3@rpw3.org (Rob Warnock) - 2015-10-19 12:00 +0000
      Re: Entropy Estimations for die and pass phrases Jeffrey Goldberg <nobody@goldmark.org> - 2015-10-19 14:52 -0500
        Re: Entropy Estimations for die and pass phrases David Malone <dwmalone@walton.maths.tcd.ie> - 2015-10-20 08:00 +0000
          Re: Entropy Estimations for die and pass phrases Jeffrey Goldberg <nobody@goldmark.org> - 2015-10-20 12:32 -0500

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