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Along with the potential emergence of quantum computing, safety and securityof new and complex communication services such as automated driving need to beredefined in the post-quantum era. To ensure reliable, continuous and secureoperation of these scenarios, quantum resistant security algorithms (QRSAs)that enable secure connectivity must be integrated into the network managementand orchestration systems of mobile networks. This paper explores a roadmapstudy of post-quantum era convergence with cellular connectivity using theService & Computation Orchestrator (SCO) framework for enhanced data securityin radio access and backhaul transmission with a particular focus onVehicle-to-Everything (V2X) services. Using NTRU as a QSRA, we have shown thatthe parallelization performance of Toom-Cook and Karatsuba computation methodscan vary based on different CPU load conditions through extensive simulationsand that the SCO framework can facilitate the selection of the most efficientcomputation for a given QRSA. Finally, we discuss the evaluation results,identify the current standardization efforts, and possible directions for thecoexistence of post-quantum and mobile network connectivity through a SCOframework that leverages parallel computing.

Post-Quantum Era in V2X Security: Convergence of Orchestration and Parallel Computation