randpw

Random password and passphrase generator.

Simple password example:

$ randpw
Ex8PfCcIvFeT5GMT

Simple passphrase example:

$ randpw -p
unlit race mandatory kelp kindling carmaker

Show information about the generated password:

$ randpw -v
tshvJXTYPWtAjyy7


Info:
----------------------------------------
- Password Cardinality: 62
- Password Length: 16
- Password Entropy: 95.3 bits
- Password Strength: Strong
- Estimated time to crack using a supercomputer with roughly
one trillion guesses per second: 687 433 358 years

Generate a pt-br passphrase and show information about it:

$ randpw -p -i pt-br -v
namorada demandou manteiga bica suavidade imponente


Info:
----------------------------------------
- Wordlist Size: 7776
- Passphrase Words: 6
- Password Entropy: 77.5 bits
- Password Strength: Strong
- Estimated time to crack using a supercomputer with roughly
one trillion guesses per second: 3 187 years

EFF's long word list is used for generating the english passphrase.

Brazilian Portuguese passphrase is generated using a pt-br wordlist curated by me using the most frequent spoken words, removing accented and words bigger than 9 and smaller than 4 characters.

Notes

• Works on Python 2 and Python 3
• Uses only Python standard library for maximum compatibility

Install

Install using pip:

pip install randpw

Usage

Usage: randpw [options]

random password and passphrase generator

Options:
  --version         show program's version number and exit
  -h, --help        show this help message and exit
  -s SIZE           size of the password (default: 16)
  -n COUNT          number of passwords to generate (default: 1)
  -c CHARS          characters to use: 'letters', 'numbers', 'mixed' or 'full'
                    - uses only letters, only numbers, letters + numbers or
                    letters + numbers + punctuation (default: mixed)
  -l, --lower       lowercase letters (default: disabled)
  -u, --upper       uppercase letters (default: disabled)
  -p, --passphrase  generate passphrase instead (default: disabled)
  -w WORDS          number of passphrase words (default: 6)
  -i IDIOM          idiom of the wordlist: 'en' or 'pt-br' (default: en)
  -v, --verbose     show some information about the generated passwords like
                    entropy, strength and estimated time to crack (default:
                    disabled)

Examples

Random password using only letters:

$ randpw -c letters
LqmTdVhrlflQanzg

32 characters password:

$ randpw -s 32
PPb9Qs3HPYDn3T3zddEeSfAuRVXjTHHa

Generate 3 uppercase letters passwords:

$ randpw -n 3 -u
FUU1VKT2FNHJ9NEX
BHIX2CBDXBPZELTZ
BHKENUKXWMA4XFX0

Lowercase password cointaing letters, numbers and punctuation:

$ randpw -c full -l
nq6g'2/x23v~ykf@

Generate 3 uppercase passphrases with 8 words each:

$ randpw -p -u -n 3 -w 8
CAPTIVE BUFFER PREFIX FREEZABLE ELOQUENT HANDPICK ALARM STAGNANT
PORTFOLIO PAWING SCRUTINY MANIFESTO CAPTIVITY TRAPS STEED IMMORALLY
SHADY YEAST FOOTER EARTHEN SHARPENER APPEASING FOOTPAD SETTLE