🔒 CipherVeil : Katapayadi System 🔒

📌 Overview

The CipherVeil : Katapayadi System is a sophisticated Python package that seamlessly hides messages within images using Sanskrit characters. It implements a novel encoding method inspired by the ancient Katapayadi system - a traditional Sanskrit numerical notation system dating back to ~700 CE. The system first converts English text into Sanskrit characters before embedding them in images using LSB (Least Significant Bit) steganography.

✨ Features

• 🔠 Text to Sanskrit Encoding – Transforms English messages into Sanskrit characters using the Katapayadi system
• 🖼️ Advanced Image Steganography – Embeds text within images using LSB encoding for undetectable message hiding
• 🔍 High Resilience – Maintains image quality while preserving message integrity
• 🖥️ Modern GUI – Features an intuitive PyQt6-based interface with dark mode
• 📜 Bidirectional Translation – Extracts hidden Sanskrit-encoded text and converts it back to English
• 🛡️ Enhanced Security – Adds an extra layer of security through Sanskrit encoding
• 🐍 Developer-Friendly API – Simple, well-documented API for both CLI and GUI applications

📥 Installation

From PyPI (Recommended)

pip install sanskrit-stegano

From Source (Development)

git clone https://github.com/YashAPro1/kat_cipher.git
cd kat_cipher
pip install -e .

Dependencies

The system requires the following packages:

pip install opencv-python numpy pyqt6

🚀 Usage

🛠️ Python API

from sanskrit_stegano import SanskritSteganoSystem

# Initialize the system
system = SanskritSteganoSystem()

# Define your inputs
message = "This message will be hidden using Sanskrit encoding"
image_path = "input.png"  # Your cover image
output_path = "secret_output.png"  # Where to save the steganographic image

# Encoding - Hide your message in an image
system.encode_message_to_image(message, image_path, output_path)
print("✅ Message successfully hidden inside image!")

# Decoding - Extract the hidden message from an image
decoded_message = system.decode_message_from_image(output_path)
print("🔓 Decoded Message:", decoded_message)

💻 Command Line Interface

# Encode a message
sanskrit-stegano encode --message "Your secret message" --input input.png --output hidden.png

# Decode a message
sanskrit-stegano decode --input hidden.png

🖥️ GUI Application

Launch the graphical interface with:

# If installed via pip
sanskrit-stegano-gui

# If running from source
python -m sanskrit_stegano.gui

🖼️ GUI Preview

The graphical user interface provides two main functions:

• Left Panel: Encode your secret message in an image
• Right Panel: Decode hidden messages from steganographic images

🧠 How It Works

1. Katapayadi Encoding: The system first converts your message into a series of Sanskrit characters using a modernized version of the ancient Katapayadi numerical encoding system.

2. Steganographic Embedding: The Sanskrit-encoded message is then hidden within the least significant bits of the image pixels, making the changes imperceptible to the human eye.

3. Extraction and Decoding: To recover the message, the system extracts the modified bits from the image and translates the Sanskrit characters back to the original text.

🔒 Security Considerations

While this system provides an excellent way to hide messages, please note:

• It's designed for educational purposes and light security needs
• For critical security applications, consider combining with encryption
• The strength lies in the dual-layer obscurity (steganography + Sanskrit encoding)

📋 Requirements

• Python 3.8+
• OpenCV
• NumPy
• PyQt6 (for GUI)

📚 Documentation

For detailed API documentation and examples, please visit our Documentation Page.

🛠️ Development Setup

For developers who want to contribute:

# Clone the repository
git clone https://github.com/YashAPro1/kat_cipher.git

# Setup development environment
cd kat_cipher
pip install -e ".[dev]"

# Run tests
pytest

🙌 Contributing

Contributions are welcome! Here's how you can help:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Please ensure your code follows our coding standards and includes appropriate tests.

📜 License

This project is licensed under the MIT License - see the LICENSE file for details.

💡 Inspiration

This project draws inspiration from:

• The ancient Katapayadi system of Sanskrit numerical notation
• Modern steganography techniques
• The rich cryptographic heritage of ancient India

📧 Contact

For questions, support or collaboration:

• Developer: Yashkumar Dubey
• GitHub: https://github.com/YashAPro1/kat_cipher