Enhanced Audio Steganography using Dynamic Compression and Encryption

Overview

This project implements an advanced audio steganography system that securely hides data within audio files using a combination of LSB-based steganography, modern encryption (AES-256 & ChaCha20), and lossless compression techniques (Zstandard, Brotli, LZMA, Bzip2) with random algorithm selection for enhanced security. The system ensures high security, efficient data hiding, and adaptability for real-world applications like secure communication and watermarking.

Features

• Strong Encryption: AES-256 & ChaCha20 ensure data confidentiality.
• Lossless Compression: Multiple compression algorithms optimize storage and transmission.
• LSB-based Steganography: Ensures imperceptibility of hidden data.
• Random Key Generation: Each session uses a unique encryption key.
• Random Algorithm Selection: Each session uses a different random combination of compression and encryption algorithms.
• Modular Design: Independent components for encryption, compression, and steganography.

1. Clone the repository:

   git clone https://github.com/Shashank0409/DynamicStego.git
   cd DynamicStego

2. Install dependencies:

   pip install -r requirements.txt

3. Run the main script:

   python Start.py

Usage

1. Embedding a Secret Message

   • Input an audio file and a secret message.
   • The system compresses and encrypts the message.
   • The encrypted message is embedded into the audio file.
   • The output is a stego-audio file and a secret key.
   • The secret key can be shared via email directly from the system or saved as a text file and shared through another channel.

2. Extracting a Hidden Message

   • Input the stego-audio file and the secret key.
   • The system extracts the hidden data, decrypts, and decompresses it.
   • The original secret message is retrieved.

Dependencies

Ensure Python 3.8+ is installed and install the dependencies using:

pip install -r requirements.txt

Technologies Used

• Python (Core development)
• Cryptography Library (AES-256 & ChaCha20)
• Zstandard, Brotli, LZMA, Bzip2 (Compression)
• PyAudio & Pydub (Audio processing)
• CustomTkinter (GUI for user-friendly interaction)

📌 Use Cases: Secure messaging, watermarking, data protection, and confidential communication.