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Optics Communications

Toward Quantum-Safe Migration: Benchmarking NIST PQC on Modern ARM Architectures

Muhamad Akrom, Supriadi Rustad, Guruh Fajar Shidik, Hermawan Kresno Dipojono, Reza Pamungkas Putra Sukanli, Kenta Hongo

Published Oct 1, 2026• 0 citations
Publisher
DOI
10.1016/j.optcom.2026.133925

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This paper examines the technical, operational, and governance challenges of migrating modern enterprise and cloud architectures to post-quantum cryptography (PQC). Following the National Institute of Standards and Technology's (NIST) release of finalized standards—including FIPS 203 (ML-KEM), FIPS 204 (ML-DSA), and FIPS 205 (SLH-DSA)—organizations face significant friction regarding key and signature size inflation, protocol interoperability, and legacy infrastructure constraints. By analyzing these barriers, the study outlines practical transition strategies, emphasizing automated cryptographic discovery, hybrid deployment architectures, crypto-agility, and a phased, risk-based rollout program.
Introduction The rapid advancement of quantum computing presents an existential threat to the mathematical foundations of modern internet security. Fault-tolerant quantum computers are projected to reach the logical qubit scale necessary to execute Shor's algorithm by 2030–2035, threatening currently deployed public-key cryptography infrastructures. Methods We evaluate the performance metrics of integrating post-quantum cryptography (PQC), specifically the newly finalized NIST standards (FIPS 203, 204, and 205), with quantum key distribution (QKD) across communication networks. Results Our analysis demonstrates that while hybrid PQC-QKD models reduce long-term key compromise probabilities to near 0%, they introduce a 15% to 40% increase in bandwidth overhead during initial cryptographic handshakes. Discussion Given that enterprise-wide cryptographic migrations historically require 7–10 years, organizations face an immediate vulnerability window against “harvest now, decrypt later” adversaries. Ultimately, we propose a phased, cryptographically agile framework to achieve a Zero-Trust, Quantum-Safe network architecture within a 5-year implementation timeline.