Device-independent quantum cryptography with input leakage
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866911614917148672 |
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| author | Zapatero, Víctor Curty, Marcos |
| author_facet | Zapatero, Víctor Curty, Marcos |
| contents | Device-independence is the gold standard of quantum cryptography. To meet this standard, a central assumption is that no information leakage occurs during protocol execution. We relax this assumption by analyzing CHSH-based randomness certification and key distribution with partial leakage of the inputs, modeled in terms of a noisy channel. Our results quantify the certifiable local randomness and the secret key rate as a function of the magnitude of the input leakage. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_20573 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Device-independent quantum cryptography with input leakage Zapatero, Víctor Curty, Marcos Quantum Physics Device-independence is the gold standard of quantum cryptography. To meet this standard, a central assumption is that no information leakage occurs during protocol execution. We relax this assumption by analyzing CHSH-based randomness certification and key distribution with partial leakage of the inputs, modeled in terms of a noisy channel. Our results quantify the certifiable local randomness and the secret key rate as a function of the magnitude of the input leakage. |
| title | Device-independent quantum cryptography with input leakage |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2604.20573 |