Steganography

Stego uses least significant bit steganography to store a data in the image pixel. Currently this project make use of Pillow library provides support for PNG, TIFF, BMP or PPM (also related family) image formats and also provides support for all color types (RGB, RGBA, CMKY, GreyScale, ...) except binary images. In future versions, support for other image formats will also be added.

Installation

You can download this project directly from github repository using command line:

git clone https://github.com/smac01/Stego.git
cd steganography
python3 setup.py install

You can also download as zip.

Usage

To get a list of all options and switches to use:

foo@bar:~$ python -m stego -h

Embedding data

The following command used to store file data into the image. Also use -p options to password protect data, uses AES encryption.

foo@bar:~$ python -m stego -e test/cmyk.tiff -f README.md

Extracting data

The following command is used to extract data and write to file if file embedded else print message to console.

foo@bar:~$ python -m stego -x test/cmyk.tiff

Info

Similar to exiftool, display metadata of the image file and data stored.

foo@bar:~$ python3 -m stego -i test/cmyk.tiff

Listing details:
File name       : test/cmyk.tiff
File type       : TIFF
Color type      : CMYK
Image size      : 120x120
Data stored     : FILE
Data size       : 1023 bytes (gzip compressed)
++ file name    : README.md

Clean

Command used to remove the data present by randomizing the lsb of the image.

foo@bar:~$ python -m stego -r test/cmyk.tiff

Testing

foo@bar:~$ python test/test_message.py
foo@bar:~$ python test/test_file.py
foo@bar:~$ python test/test_clean.py

Suggestions are ❤️ welcomed.