dorsal/arxiv
View SchemaBounds on Information and the Security of Quantum Cryptography
| Authors | E. Biahm, T. Mor |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9605010 |
| URL | https://arxiv.org/abs/quant-ph/9605010 |
Abstract
Strong attacks against quantum key distribution use quantum memories and quantum gates to attack directly the final key. In this paper we extend a novel security result recently obtained, to demonstrate proofs of security against a wide class of such attacks. To reach this goal we calculate information-dependent reduced density matrices, we study the geometry of quantum mixed states, and we find bounds on the information leaked to an eavesdropper. Our result suggests that quantum cryptography is ultimately secure.
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"date_created": "2026-03-02T18:02:38.072000Z",
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"abstract": "Strong attacks against quantum key distribution use quantum memories and\nquantum gates to attack directly the final key. In this paper we extend a novel\nsecurity result recently obtained, to demonstrate proofs of security against a\nwide class of such attacks. To reach this goal we calculate\ninformation-dependent reduced density matrices, we study the geometry of\nquantum mixed states, and we find bounds on the information leaked to an\neavesdropper. Our result suggests that quantum cryptography is ultimately\nsecure.",
"arxiv_id": "quant-ph/9605010",
"authors": [
"E. Biahm",
"T. Mor"
],
"categories": [
"quant-ph"
],
"title": "Bounds on Information and the Security of Quantum Cryptography",
"url": "https://arxiv.org/abs/quant-ph/9605010"
},
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