Audio Steganography

This repository contains a Python library for coding and decoding arbitrary data into cover WAV audio files using the implemented steganography methods.

Czech translation of this README can be found in README-CZ.md.

Prerequisites

• Python 3.8 or later
• NumPy
• SciPy
• pandas (for evaluation)
• matplotlib (for evaluation)

These libraries can be installed with:

python -m pip install -r requirements.txt

Program usage

The embedded CLI program can be used like this:

python -m audio_steganography

or with:

./audio-steganography.sh

The program expects a steganography method as first argument followed by encode or decode depending on the wanted operation.

Encoding

When encoding, you must use -s to specify the cover audio file and either -f for encoding a file or -t for encoding text from the argument. Some methods may ask you to enter a value for their required parameters. Also, most methods have optional parameters which can influence the encoding results. These parameters can be printed out with the -h switch after the method name argument.

Decoding

When decoding, you must use -s to specify the stego audio file. Some methods also require you to use the parameters that were used when encoding.

Library usage

Import the library with:

import audio_steganography

and use the methods from methods directory.

If you want add a method, the method_base module contains the abstract base class MethodBase which all methods must inherit. Then the new method class must then be added into the MethoEnum class and all of the method's parameters must be added to the options dictionary in main function.

LICENSE

This project is under the Apache-2.0 license. See LICENSE and NOTICE for more information.