Skip to main content

User-friendly symmetric-key cryptography

Project description

lockbox: User-friendly CLI over cryptography.io's Fernet symmetric cipher
=====================================================

.. image:: https://img.shields.io/badge/python-2.6%202.7%203.3%203.4%203.5%203.6-blue.svg
:target: https://pypi.python.org/pypi/lockbox

.. image:: https://img.shields.io/badge/license-MIT-blue.svg
:target: https://pypi.python.org/pypi/lockbox

---------------

.. image:: https://s3.amazonaws.com/johnwheeler/lockbox.gif

**lockbox** provides a command line interface over cryptography.io's `Fernet symmetric cipher <https://cryptography.io/en/latest/fernet/>`_.
Fernet guarantees that a message encrypted using it cannot be manipulated or read without the key. lockbox was inspired by the Ruby-based
`sekrets <https://github.com/ahoward/sekrets>`_ project, but they use different ciphers.

Installation
------------
``pip install lockbox``

Command line interface
----------------------

The ``lock`` command
/////////////////////

.. code::

Usage: lockbox lock [OPTIONS] INPUT OUTPUT

Symmetric encryption of plaintext input file to ciphertext output file

Options:
--key TEXT An encryption key
--help Show this message and exit.


The ``unlock`` command
////////////////////

.. code::

Usage: lockbox unlock [OPTIONS] INPUT OUTPUT

Symmetric decryption of ciphertext input file to plaintext output file

Options:
--key TEXT An encryption key
--help Show this message and exit.


The ``edit`` command
////////////////////

.. code::

Usage: lockbox edit [OPTIONS] PATH

Decrypts the given file and opens its contents in a temporary file for
editing. Once saved, the updated contents are reencrypted back to the
orignal file.

Options:
--key TEXT An encryption key
--help Show this message and exit.


The ``genkey`` command
//////////////////////

.. code::

Usage: lockbox genkey [OPTIONS] OUTPUT

Generates a cryptographically strong key and writes it to the given output
path

Options:
--help Show this message and exit.


Key resolution
--------------

With **lockbox**, you can pass an encryption key as a command line option ``--key`` or store the key in a ``.lockbox.key`` file.
The key should be `cryptographically strong <https://en.wikipedia.org/wiki/Password_strength#Guidelines_for_strong_passwords>`_. The command
line interface also has a command to generate such a key.

For all operations, lockbox uses the following algorithm to search for a key:

- A key passed via the ``--key`` option is always preferred.
- Otherwise the code looks for a companion key file named ``.lockbox.key`` in the the current working directory.
- If that is not found lockbox looks for the key in the environment under the environment variable ``LOCKBOX_KEY``
- Next the global key file is searched for. The path of this file is ``~/.lockbox.key``
- Finally, if no keys have been specified or found, the user is prompted to input the key. Prompt only occurs if the user is attached to a tty.
- You should **never** commit keyfiles. Add them to to your ``.gitignore`` or similar.

Release history Release notifications | RSS feed

This version

0.1

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

lockbox-0.1.tar.gz (3.8 kB view hashes)

Uploaded source

Built Distribution

lockbox-0.1-py2.py3-none-any.whl (4.5 kB view hashes)

Uploaded 2 7

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page