Preparing Your Homelab for the Quantum Future: Post-Quantum Cryptography Migration
Implement post-quantum cryptography with CRYSTALS-Kyber and Dilithium—prepare homelab for quantum threats using NIST-approved algorithms.
Efficient implementation of post-quantum digital signatures on Raspberry Pi - Discover Applied Sciences
doi.orgWhile quantum computing poses a threat to many classical cryptographic schemes such as RSA and ECC, the quest for quantum-resistant alternatives has seen rapid growth. We provide one of the most detailed yet real-world demonstrations of the NIST-PQC lattice-based digital signature schemes, being the Dilithium family: Dilithium2, Dilithium3, and Dilithium5, being implemented and evaluated on a single-embedded platform, Raspberry Pi 4 Model B. We deliver a more deep-seated portrayal, giving details on platform-determined performance optimizations, performance trade-offs, and energy consumption characteristics, identifying Dilithium2 as a well-balanced prospect for quantum-safe deployments in the context of IoT and the edge. Notably, our work encompasses an empirical comparison with Dilithium and Falcon schemes with respect to implementation practicality, side-channel consideration, and resource overhead. Falcon has compact signatures, but its integration in an embedded context poses a challenge because it uses floating-point arithmetic and Gaussian sampling. Our experiments, performed on stress-tested hardware, show that Dilithium is not only as secure as required by post-quantum security standards but also operates reliably in low-resource environments. An interactive benchmarking toolkit and open-source codebase provide further reproducibility and potential for future work. We thereby give an applied basis to the practical use of quantum-secure digital signatures in constrained devices.