https://github.com/gertjanvanzwieten/vimdecrypt

Command line tool for decrypting vim-blowfish-encrypted files.
https://github.com/gertjanvanzwieten/vimdecrypt

Last synced: about 2 months ago
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Command line tool for decrypting vim-blowfish-encrypted files.

• Host: GitHub
• URL: https://github.com/gertjanvanzwieten/vimdecrypt
• Owner: gertjanvanzwieten
• License: gpl-2.0
• Created: 2014-06-05T17:58:51.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2020-04-18T21:11:02.000Z (over 4 years ago)
• Last Synced: 2024-06-28T08:36:12.348Z (3 months ago)
• Language: Python
• Homepage:
• Size: 41 KB
• Stars: 18
• Watchers: 3
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# vimdecrypt

Command line tool for decrypting vim-blowfish-encrypted files.

As of version 7.3 vim offers built in blowfish encryption/decryption.

Unfortunately the resulting files can only be read back by vim, precluding

batch processing or scripting. Also longevity of encrypted data is a concern if

a program with the dependencies and size of vim is required to unlock it.

This project provides a very simpe `vimdecrypt` Python module for decrypting

blowfish-encoded file objects, as well as the `vimdecrypt` command line tool

for decrypting files to stdout.

## encryption methods

Vimdecrypt supports only blowfish2 encryption. Files encrypted using either zip

or blowfish should be converted using `:set cm=blowfish2` prior to using this

tool.

## requirements

Besides Python 3, vimdecrypt requires any one of

[PyCryto](https://pycrypto.org), [PyCryptoDome](https://www.pycryptodome.org)

or [blowfish](https://pypi.python.org/pypi/blowfish) to be installed.

## installation

Both the Python module and the command line tool are installable via

setuptools:

    $ python setup.py install (--user)

## usage

With `~/.local/bin` in your executable path, decrypt any file to stdout using:

    $ vimdecrypt [path]

If the path argument is omitted then data is read from stdin:

    $ cat somefile | vimdecrypt

Note that the password is obtained via GNU getpass which does not interfere

with stdin/stdout redirection.

The Python module defines only the `decrypt` method:

    >>> import vimdecrypt

    >>> with open('somefile', 'rb') as f:

    >>>   text = vimdecrypt.decrypt(f)

## credits

Thanks to [@nlitsme](https://github.com/nlitsme) for demonstrating blowfish

decryption in Python. His identically named

[vimdecrypt](https://github.com/nlitsme/vimdecrypt) project supports multiple

encryption methods as well as password cracking.