Steganopy

A python script for hiding text into images (steganography).



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Installation

With git GitHub:

git clone https://github.com/irtsa-dev/Steganopy.git

With pip PyPi

pip install idev-steganopy

Usage

Within the CMD/Terminal

If installed with GIT:

python steganopy.py [-h] {encrypt,decrypt} ...

If installed with PIP:

steganopy [-h] {encrypt,decrypt} ...

Utilize -h or --help parameter for additional help.

usage: steganopy [-h] {encrypt,decrypt} ...

positional arguments:
  {encrypt,decrypt}

options:
  -h, --help         show this help message and exit

usage: steganopy encrypt [-h] [-t TEXT] [-f FILE] [-v VALUES] [-e ENCODING] [-k KEY] [-o OUTPUT] source

positional arguments:
  source                Picture source location.

options:
  -h, --help            show this help message and exit
  -t TEXT, --text TEXT  Text to be added for encryption (cannot be used with --file).
  -f FILE, --file FILE  File location of text to be added when encrypting (cannot be used with --text).
  -v VALUES, --values VALUES
                        Values to be used for encryption.
  -e ENCODING, --encoding ENCODING
                        Specifies the base the information is to be encoded in.
  -k KEY, --key KEY     Specifies key to use for xor operation.
  -o OUTPUT, --output OUTPUT
                        Specifies output file name.

usage: steganopy decrypt [-h] [-v VALUES] [-e ENCODING] [-k KEY] [-o OUTPUT] source

positional arguments:
  source                Picture source location.

options:
  -h, --help            show this help message and exit
  -v VALUES, --values VALUES
                        Values to be used for decryption.
  -e ENCODING, --encoding ENCODING
                        Specifies the base the information is encoded in.
  -k KEY, --key KEY     Specifies key to use for xor operation.
  -o OUTPUT, --output OUTPUT
                        Specifies output file name.

Additional Notes:

• The following are accepted file extensions: png, jpg, webp, jpeg
• The following are accepted encoding bases: binary, trinary, quaternary, quinary, senary, septenary, octal, nonal

Examples

steganopy encrypt exampleimage.png -t "test text" -v r

- Will only utilize the red values in the image to put the information in.

steganopy encrypt exampleimage.png -t "test text" -o "newname"

- Will output the file with the name "newname" instead of the default name of the original filename with -steganopy appended to it.

steganopy encrypt exampleimage.png -f exampletext.txt

- Will get text from the exampletext.txt file to use.

steganopy encrypt exampleimage.png -e trinary

- Will encode the information in base 3 (trinary) instead of the default of binary.

steganopy decrypt exampleimage-steganopy.png -v r

- When decrypting, the values used in encryption must be the same, otherwise errors may be thrown.

steganopy decrypt exampleimage-steganopy.png -v r -o test

- When decrypting, you can also use the -o --output argument to have the information be outputed into the a text document with the specified name.