Ruixuan Deng, Zhengfeng Ji, Jiayu Zhang, Li Zhou · 2026 · arXiv
DOI: 10.48550/arXiv.2610.30645 · open-access PDF
Distribusi Kunci Kuantum (QKD), yang keamanan berasal dari mekanika kuantum dan bukan asumsi komputasi, sedang bergerak menuju standarisasi dan pengembangan komersial. Namun, jaminan keamanannya bergantung pada bukti-bukti teknis yang sensitif yang diperiksa secara manual. Verifikasi formal menutup kesenjangan ini, menetapkan jaminan dua faktor: keamanan tanpa syarat dari prinsip-prinsip fisik, dan bukti-bukti yang diperiksa mesin terhadap kesalahan-kesalahan argumen. Kami menyajikan FVQKD, sebuah perpustakaan Rocq untuk memeriksa bukti-bukti keamanan QKD secara mesin. Hasil pertamanya adalah bukti lengkap, dari ujung ke ujung, yang diperiksa mesin dari komposable, kunci akhir.
Machine translation (Meta M2M100); the English original follows.
Quantum key distribution (QKD), whose security is derived from quantum mechanics rather than computational assumptions, is moving into standardization and commercial deployment. Yet its security guarantees rest on technically delicate proofs checked by hand. Formal verification closes this gap, establishing a two-factor assurance: unconditional security from physical principles, and machine-checked proofs against reasoning errors. We present FVQKD, a Rocq library for machine-checking QKD security proofs. Its first result is a complete, end-to-end machine-checked proof of composable, finite-key
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