Quantum-Resilient Cryptographic Frameworks: Design and Analysis of Post-Quantum Algorithms for Secure and Efficient Edge-Assisted IoT Ecosystems in Consumer Electronics Devices

The rise of quantum computing threatens traditional cryptographic systems, driving the urgent adoption of PQC algorithms for securing IoT and edge computing environments. However, selecting an optimal PQC scheme remains challenging due to trade-offs between security strength, computational efficiency, and scalability in real-world deployments. While algorithms like CRYSTALS-Kyber, CRYSTALS-Dilithium, and SPHINCS+ offer quantum resilience. These suffer from processing overhead, high energy consumption, and limited adaptability, hindering their seamless integration into latency-sensitive and resource-constrained IoT networks. In this study, we conduct a comprehensive and systematic performance evaluation of these PQC algorithms within the context of IoT-based cryptographic scheduling workflows, assessing critical efficiency parameters such as encryption/decryption time, execution speed, system latency, energy efficiency, and scalability under varying processing loads and batch sizes. Our analysis reveals that CRYSTALS-Kyber consistently outperforms its counterparts, demonstrating superior computational efficiency, minimal processing delays, and lower power consumption while maintaining high-security resilience against quantum adversaries. Additionally, we propose a dynamic cryptographic scheduling approach, optimizing the balance between security levels and computational resource allocation, ensuring efficient cryptographic task management in large-scale IoT networks. This research provides a foundation for the practical deployment and standardization of PQC in next-generation cryptographic architectures, enabling the seamless transition from classical to quantum-secure cryptographic frameworks. The insights gained from this study are pivotal for advancing cryptographic scheduling models, enhancing security efficiency in real-time IoT operations, and driving the global adoption of PQC algorithms for future-proof digital security infrastructures.