PNGHide: PNG Data Hider & Revealer

PNGHide is a simple tool designed for hiding and extracting data within PNG files securely and effortlessly using Python.

System Architecture

Features

• Data Hiding: Embed images or text into PNG files, concealing sensitive information within innocuous images.
• Data Extraction: Extract hidden data from PNG files, unveiling concealed information with precision.
• Secure Encryption: Utilize cryptographic encryption for secure hiding and extraction of data.
• User-Friendly Interface: Intuitive command-line interface (CLI) and graphical user interface (GUI) for seamless data manipulation.

Dependencies

• Python 3.x
• Tkinter (Python's standard GUI library)

Installation

1. Clone or download the repository to your local machine.
2. Ensure you have Python installed on your system.
3. Install dependencies, simply run :

pip install -r requirements.txt

Setup

Before using PNGHide, you need to specify the encryption key directly in the main.py script.

Setting Encryption Key

1. Open the main.py file in a text editor.
2. Locate the KEY variable in the script.
3. Replace the current value of the KEY variable with your desired encryption key.

Usage

Command Line Usage

Embedding Data

Embedding an image file into a PNG file:

python main.py embed --input input_image.png --output output_image.png --file data_to_hide.png

Embedding a text file into a PNG file:

python main.py embed --input input_image.png --output output_image.png --file data_to_hide.txt

Extracting Data

Extracting hidden data from a PNG file:

python main.py extract --input input_image.png --output extracted_data

GUI Usage

1. Execute the gui.py script:
2. Click on the "Embed Data" button to hide data within a PNG file or the "Extract Data" button to reveal hidden data.
3. Follow the intuitive prompts in the GUI to select input and output files and specify the type of data you're hiding (for embedding).

References

If you found this project useful, consider referencing the following resources:

• PNG file format specification: Reference for understanding the structure of PNG files.