PassphraseGen: generating custom passphrase lists

by do son · Published August 27, 2018 · Updated August 27, 2018

PassphraseGen

PassphraseGen is a script for generating custom passphrase lists to be used for password cracking with hashcat rules like the ones found here: https://github.com/initstring/passphrase-wordlist.

Included in this repo are a few wordlists located in the “lists” folder that can be used to generate passphrases including the top English words, an EFF passphrase wordlist, and the Bitcoin BIP-039 seed wordlist.

There is also an option that allows for selecting a number of random words from a list for use with the tool. The more words you have on your list the greater amount of time it will take the tool to generate the passphrases. See the “Sample Benchmarks” section below for some example run times.

Download

git clone https://github.com/dafthack/PassphraseGen.git

Use

Options

ThreeWords   -    Use this switch to generate passphrases using only 3 words.

FourWords    -    Use this switch to generate passphrases with 4 words.

Wordlist     -    The input list of words that are to be used within passphrases.

OutputFile   -    The file to output all the passphrases to.

TotalLines   -    Use this option to specify a number of lines to randomly select from the wordlist for use within passphrases.

Example

Provided a list of the following four words the script will generate the following passphrases:

Wordlist

hacker

password

pwnage

noob

Passphrases Output

hacker password pwnage noob

hacker password noob pwnage

hacker pwnage password noob

hacker pwnage noob password

hacker noob password pwnage

hacker noob pwnage password

password hacker pwnage noob

password hacker noob pwnage

password pwnage hacker noob

password pwnage noob hacker

password noob hacker pwnage

password noob pwnage hacker

pwnage hacker password noob

pwnage hacker noob password

pwnage password hacker noob

pwnage password noob hacker

pwnage noob hacker password

pwnage noob password hacker

noob hacker password pwnage

noob hacker pwnage password

noob password hacker pwnage

noob password pwnage hacker

noob pwnage hacker password

noob pwnage password hacker

This example will take a list of words and generate a passphrase list using four words in each passphrase.

Invoke-PassphraseGen -FourWords -Wordlist .\lists\top-100-english-words-4-chars-or-more.txt -OutputFile passphrase-list.txt

This example will take a list of words and select 25 random lines from it. Then using those 25 words it will generate a passphrase list using four words in each passphrase.

Sample Benchmarks

Here are some sample benchmarks of generating passphrase lists with PassphraseGen on a fairly decent laptop… Your mileage may vary.

15 words, four-per-passphrase (Total of 32760 passphrases)  : 1 min 30 secs  --- 826 KB

25 words, four-per-passphrase (Total of 303600 passphrases) : 1 hour 10 mins --- 8.07 MB

Source: https://github.com/dafthack/

PassphraseGen: generating custom passphrase lists

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