papass 0.0.5

papass is a simple library to generate passphrases and passwords.

papass

papass generates passphrases following the diceware approach as proposed by Arnold G. Reinhold.

Quickstart

Assuming you have a wordlist file wordlist.txt (where to get one) you can run the following command to generate a random list of four words:

$ papass pp -l 4 -w wordlist.txt
Passphrase: grimy street acetone overcast
Entropy: 51.6993

By default this uses the system's most secure random number generator. To use physical dice add -r dice. The number of dice rolls can become very high so for convenience you can enter the rolls in groups as in the following example:

$ papass pp -l 4 -w wordlist.txt -r dice
Roll 20 dice: 5 1 3 5 1
Roll remaining 15 dice: 4 6 4 6 2
Roll remaining 10 dice: 5 6 2 3 6
Roll remaining 5 dice: 6 5 2 2 4
Passphrase: renegade reapprove static uphold
Entropy: 51.6993

Passwords can be created too (can also be used with -r dice):

$ papass pw -l 20 -p letters,digits
Password: rXJndFnML2j3YqVo2WgF
Entropy: 119.084

See papass.readthedocs.io for the full documentation.

Development

Create a virtual environment (e.g. via python -m venv .myvenv or mamba/micromamba). Install (development) dependencies and papass in editable mode:

$ pip install -r requirements.txt -e .

Run tests and type checking via

$ pytest
$ mypy

Formatting and linting is done via ruff.

$ ruff format
$ ruff check --fix

To build the docs install e.g. make and do

$ pip install -r docs/requirements.txt
$ make -C docs/ html