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From: Stefan Claas <pollux@tilde.club>
Newsgroups: sci.crypt
Subject: Re: Using Diceware, BIP39 and leetspeak for Argon2id keys
Date: Sun, 18 Aug 2024 15:37:28 -0000
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Stefan Claas wrote:
> Marcel Logen wrote:
> > Stefan Claas in sci.crypt:
> > 
> > > regarding my previous thread about memorizing a 128/256 bit key,
> > > I came up with the following idea to create Argon2id keys.
> > > 
> > > Now we only need to memorize our Diceware passphrase.
> > > 
> > > This task shoulb be carried out on an offline Computer.
> > > 
> > > I am using four Golang programs, called dwp (diceware passphrase),
> > > dice2bip, leetspeak and argon2id, which you can find on my GitHub
> > > page at:
> > > 
> > > https://github.com/stefanclaas/
> > > 
> > > Usage of leetspeak is optional.
> > > 
> > > First we start with dwp:
> > > 
> > > $ dwp -r 6 -d eff_large_wordlist.txt -p
> > > Diceware number 1: 51534 - reselect
> > > Diceware number 2: 25455 - envelope
> > > Diceware number 3: 42252 - nuptials
> > > Diceware number 4: 35561 - lapping
> > > Diceware number 5: 26225 - expand
> > > Diceware number 6: 24453 - earpiece
> > > 
> > > Complete passphrase: reselect envelope nuptials lapping expand earpiece
> > 
> > Calculated entropy: 77 Bits:
> > 
> >    number of positions: 30 (6 x 5)
> >    character pool: 1..6
> > 
> > | user15@o15:/tmp$ bc -lq
> > | 30 * l(6)/l(2)
> > | 77.54887502163468544431
> > 
> > Quote from <https://en.wikipedia.org/wiki/Diceware>:
> > 
> > | The level of unpredictability of a Diceware passphrase
> > | can be easily calculated: each word adds 12.9 bits of
> > | entropy to the passphrase [...]. Originally, in 1995,
> > | Diceware creator Arnold Reinhold considered five words
> > | (64.6 bits) the minimal length needed by average users.
> > | However, in 2014 Reinhold started recommending that at
> > | least six words (77.5 bits) be used.

Ok. now with a russian wordlist and a seperator. Would Eve
know that I used another Diceware wordlist, along with BIP39,
for creating an Argon2id key ...???

There are a couple of wordlists and one can create his own.

$ dwp -r 6 -d russian.txt -p -s "*"
Diceware number 1: 41644 - лад
Diceware number 2: 13132 - башкир
Diceware number 3: 11654 - аполог
Diceware number 4: 62335 - ужин
Diceware number 5: 56323 - суржа
Diceware number 6: 15314 - вагон

Complete passphrase: лад*башкир*аполог*ужин*суржа*вагон

-- 
Regards
Stefan