🧬 DNA Data Storage Platform v3.0

A comprehensive, user-friendly platform for encoding, encrypting, preparing, and decoding digital data using synthetic DNA sequences. Built with Streamlit for accessible deployment and research collaboration.

✨ Features

Feature	Description	Status
Multi-format Encoding	Convert text, images, audio, video, PDF to DNA	✅
Chaos Encryption	Secure with Logistic/Hénon/Lorenz chaos systems	✅
NGS Fragment Generation	Prepare sequences for DNA synthesis	✅
Quality Verification	Compare original and reconstructed data	✅
Cloud Deployment	One-click deployment to Streamlit Cloud	✅

⚙️ Installation

Local Setup

# 1. Clone repository
git clone https://github.com/username/dna-storage-platform.git
cd dna-storage-platform

# 2. Create virtual environment
python -m venv venv

# 3. Activate environment
# On Windows:
venv\Scripts\activate
# On Mac/Linux:
source venv/bin/activate

# 4. Install dependencies
pip install -r requirements.txt

# 5. Install FFmpeg (required for audio/video)
# On Ubuntu/Debian:
sudo apt-get install ffmpeg
# On Mac:
brew install ffmpeg
# On Windows:
# Download from https://ffmpeg.org/download.html

# 6. Run application
streamlit run app.py

Streamlit Cloud Deployment

For Streamlit Cloud deployment, ensure you have these files in your repository root:

1. packages.txt - System-level dependencies:

   ffmpeg
   

2. requirements.txt - Python dependencies:

   streamlit>=1.28.0
   brotli>=1.0.9
   Pillow>=10.0.0
   numpy>=1.24.0
   pandas>=2.0.0
   scikit-image>=0.21.0
   PyPDF2>=3.0.0
   

⚠️ Important: The packages.txt file is required for audio and video compression to work on Streamlit Cloud. Without it, FFmpeg will not be available and audio/video features will be disabled.

File Structure

dna_storage/
├── app.py              # Main Streamlit application
├── dna_codec.py        # DNA encoding/decoding logic
├── compression.py      # Compression algorithms (with FFmpeg checks)
├── randomization.py    # Henon chaos map implementation
├── comparison.py       # Quality metrics calculation
├── requirements.txt    # Python dependencies
├── packages.txt        # System dependencies (for Streamlit Cloud)
└── README.md           # This file

Usage Examples

Complete Workflow

1. Encode: Upload file → Select compression → Encode to DNA
2. Randomize: Load DNA → Select chaos system → Enter primers → Randomize
3. NGS Prep: Load DNA → Set fragment length → Generate fragments
4. Decode: Load randomized DNA → Enter primers → Decode to file
5. Compare: Load original and decoded → Verify integrity

Troubleshooting

Audio/Video Not Working on Streamlit Cloud

If you see "FFmpeg not available" errors:

1. Ensure packages.txt exists in your repository root
2. The file should contain only: ffmpeg
3. Redeploy your app after adding the file

Local FFmpeg Issues

If FFmpeg is not found locally:

• Ubuntu/Debian: sudo apt-get install ffmpeg
• macOS: brew install ffmpeg
• Windows: Download from ffmpeg.org and add to PATH

License

MIT License

Author

DNA Data Storage Platform v2.0