Re: [Cfrg] Word-lists for Diffie-Hellman and Fingerprints

Yoav Nir <ynir.ietf@gmail.com> Wed, 30 August 2017 05:01 UTC

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From: Yoav Nir <ynir.ietf@gmail.com>
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Date: Wed, 30 Aug 2017 08:01:35 +0300
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Cc: Derek Atkins <derek@ihtfp.com>, prz@acm.org, Moxie Marlinspike <moxie@thoughtcrime.org>, IRTF CFRG <cfrg@irtf.org>, Werner Koch <wk@gnupg.org>
To: Bill Cox <waywardgeek@gmail.com>
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Subject: Re: [Cfrg] Word-lists for Diffie-Hellman and Fingerprints
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Why not re-use the list of words from appendix A of RFC 1751?

> On 25 Aug 2017, at 21:13, Bill Cox <waywardgeek@gmail.com> wrote:
> 
> Here's a 1024-long word list for English that I cooked up with a few hours of work.  In short, the process for any language is:
> 
> - Find multiple lists of the most common words in the target language
> - Throw away words that you feel are commonly misspelled. like forty (not fourty).
> - Throw away words with homophones, such as: to two too, dear deer, I eye, hear here
> - Throw away words with almost-homophones, such as: fifty fifteen
> 
> It has uses in password reset flows where a support person is trying to help an employee who is at a loud airport using a cell phone.
> 
> The list could certainly be improved, but it is a good starting point for English.
> 
> Bill
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