🚀 Post-Quantum Cryptography Optimization: CRYSTALS-Dilithium for Resource-Constrained Devices

This project demonstrates the optimization of the post-quantum signature scheme CRYSTALS-Dilithium (Dilithium-II) for resource-constrained devices such as IoT nodes and embedded systems. It includes:

✅ An optimized implementation of Dilithium-II leveraging memory management and vectorized operations. ✅ A benchmarking suite comparing the optimized Dilithium-II against the standard Dilithium-II, Dilithium-III, Dilithium-V, and Falcon-512. ✅ Python visualization tools for analyzing key generation, signing, and verification performance.

---

📂 Features

• ⚡ Optimized Dilithium-II for better performance on constrained devices.
• 📊 Performance benchmarking for lattice-based signature schemes (Dilithium II/III/V, Falcon).
• 📈 Grouped bar chart visualization for direct comparison.
• 📄 CSV export for easy data analysis and reporting.
• 🛡️ Uses liboqs for post-quantum cryptographic primitives.

---

🛠 Technologies Used

• C (GCC) – Optimized implementation and benchmarking suite.
• liboqs – Open Quantum Safe library for post-quantum cryptography.
• Python 3 (Matplotlib, Pandas) – Data visualization and analysis.

---

📝 Project Structure

.
├── dilithium_optimized.c          # Optimized Dilithium-II implementation with benchmarking
├── results.csv                    # Benchmark results (auto-generated)
├── plot_results.py                # Python script for visualization
├── pqc_comparison.png             # Grouped bar chart (auto-generated)
├── README.md                      # Project documentation

---

🚀 Getting Started

📥 Prerequisites

• GCC or Clang compiler with C99 support
• liboqs installed (installation guide)
• Python 3 with matplotlib and pandas

pip install matplotlib pandas

🛠 Build and Run

1. Compile the C code:

   gcc dilithium_optimized.c -loqs -o dilithium_optimized

2. Run benchmarks:

   ./dilithium_optimized

   This generates results.csv.

3. Visualize results:

   python3 plot_results.py

---

📜 License

This project is licensed under the MIT License.

---

🤝 Acknowledgements

• Open Quantum Safe Project (liboqs)
• NIST Post-Quantum Cryptography Standardization