Leprechaun.py

A simple rainbow table generator written in Python 3.

Synopsis

Leprechaun.py is a simple Python program used for generating cryptographic rainbow tables. This script can compute hashes using the MD5, SHA1, SHA256 and SHA512 algorithms. Leprechaun can hash any arbitrary number of plaintext files, as long as they're within the same directory. Or, if you're a normal person without a huge directory filled with wordlists, you can hash one single file. The choice is yours!

Installation

Leprechaun is available for download from PyPI using pip, just like everything else!

$ mkdir DIRECTORY
$ cd DIRECTORY
$ virtualenv -p python3 .
$ pip install leprechaun

Usage

leprechaun [-h] [-g] [-l LENGTH] [-d] [-o OUTPUT] [--debug] [-m] [-s] [-s2] [-s3] [-s5] [-i] [--prefix] [--postfix] [--first-run-only] WORDLIST

arguments:

(Positional Arguments)
WORDLIST                          The file name of the wordlist to hash,
                                  without the file extension

(Optional Arguments)
-h, --help                        Show this help message and exit

(Wordlist Arguments)
-f, --wordlist-folder             Hash all of the plaintext files in a
                                  folder, rather than a single file. The
                                  name of the folder will be set by the
                                  WORDLIST argument
-g, --generate-wordlist           Generate a wordlist dynamically instead
                                  of using a pre-built one; the name of the
                                  dynamically generated wordlist will be set
                                  by the WORDLIST argument
-l LENGTH, --word-length LENGTH   The maximum length of the words to be
                                  generated (default=8)

(Output Arguments)
-o OUTPUT, --output OUTPUT        Name of the rainbow table file, without
                                  the file extension (default=rainbow)
-d, --use-database                Save the output to an SQLite DB instead
                                  of a plaintext file
(Logging Arguments)
--debug                           Print debug log messages

(Hashing Algorithms)
-m, --md5                         Generate MD5 hashes of given passwords (default)
-s, --sha1                        Generate SHA1 hashes of given passwords
-s2, --sha256                     Generate SHA256 hashes of given passwords
-s3, --sha384                     Generate SHA384 hashes of given passwords
-s5, --sha512                     Generate SHA512 hashes of given passwords

(Hashing Arguments)
-i, --iterations                  Set the number of hash iterations, default=1
--prefix                          Set a prefix for the word
--postfix                         Set a postfix for the word
--first-run-only                  Add the pre/postfixes only during the first iteration, default=False

Examples

Below are a few simple examples on using Leprechaun.py. While not an exaustive compilation of use cases, the program itself is quite simple to figure out on one's own.

# Create a rainbow table using the MD5 hashing algorithm.
leprechaun /path/to/your/wordlist.txt

# Create a rainbow table using the SHA-1 hashing algorithm.
leprechaun -s /path/to/your/wordlist.txt

# Create a rainbow table using the SHA-1 hashing algorithm, saving the
# output in an SQLite database.
leprechaun -s -d /path/to/your/wordlist.txt

# Create a rainbow table using the SHA-256 hashing algorithm, hashing all of
# the plaintext files in a given directory, saving the output in an SQLite
# database.
leprechaun -s2 -d -f /path/to/your/wordlists

# Create a rainbow table using the SHA-256 hashing algorithm, hashing all of
# the plaintext files in a given directory, saving the output in an SQLite
# database named "patty"
leprechaun -s2 -d -o patty -f /path/to/your/wordlists

# Create a rainbow table using the SHA384 hashing algorithm, prepending a
# salt to the word and iterate the hash 40 times.
leprechaun -s3 -i 40 --prefix '1234' /path/to/your/wordlists

Wordlists

Because any good wordlist contains several million lines of words, and several million lines of anything takes up a heck of a lot of space, the previously distributed wordlist is no longer being distributed. But don't fret! I've uploaded that same wordlist onto the Internet for everyone to enjoy. You may find it here.

License

The MIT License (MIT)

Copyright (c) 2013 Zach Dziura

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.