On the Energy Cost of Post-Quantum Key Establishment in Wireless Low-Power Personal Area Networks
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866910044684025856 |
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| author | Liu, Tao Ramachandra, Gowri Jurdak, Raja |
| author_facet | Liu, Tao Ramachandra, Gowri Jurdak, Raja |
| contents | Post-Quantum Cryptography (PQC) creates payloads that strain the timing and energy budgets of Personal Area Networks. In post-quantum key exchange (PQKE), this causes severe fragmentation, prolonged radio activity, and high transmission overhead on low-power devices. Prior work optimizes cryptographic computation but largely ignores communication cost. This paper separates computation and communication costs using Bluetooth Low Energy as a representative platform and validates them on real hardware. Results show communication often dominates PQKE energy, exceeding cryptographic cost. Efficient quantum-resilient pairing therefore requires coordinated protocol configuration and lower-layer optimization. This work provides developers a practical way to reason about PQC energy trade-offs and informs the evolution of PAN standards toward quantum-safe operation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_18708 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | On the Energy Cost of Post-Quantum Key Establishment in Wireless Low-Power Personal Area Networks Liu, Tao Ramachandra, Gowri Jurdak, Raja Cryptography and Security Post-Quantum Cryptography (PQC) creates payloads that strain the timing and energy budgets of Personal Area Networks. In post-quantum key exchange (PQKE), this causes severe fragmentation, prolonged radio activity, and high transmission overhead on low-power devices. Prior work optimizes cryptographic computation but largely ignores communication cost. This paper separates computation and communication costs using Bluetooth Low Energy as a representative platform and validates them on real hardware. Results show communication often dominates PQKE energy, exceeding cryptographic cost. Efficient quantum-resilient pairing therefore requires coordinated protocol configuration and lower-layer optimization. This work provides developers a practical way to reason about PQC energy trade-offs and informs the evolution of PAN standards toward quantum-safe operation. |
| title | On the Energy Cost of Post-Quantum Key Establishment in Wireless Low-Power Personal Area Networks |
| topic | Cryptography and Security |
| url | https://arxiv.org/abs/2602.18708 |