dorsal/arxiv
View SchemaContinuous-variable quantum cryptography is secure against non-gaussian attacks
| Authors | Frederic Grosshans, Nicolas J. Cerf |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311006 |
| URL | https://arxiv.org/abs/quant-ph/0311006 |
| DOI | 10.1103/PhysRevLett.92.047905 |
| Journal | Phys. Rev. Lett. 92, 047905 (2004) |
Abstract
A general study of arbitrary finite-size coherent attacks against continuous-variable quantum cryptographic schemes is presented. It is shown that, if the size of the blocks that can be coherently attacked by an eavesdropper is fixed and much smaller than the key size, then the optimal attack for a given signal-to-noise ratio in the transmission line is an individual gaussian attack. Consequently, non-gaussian coherent attacks do not need to be considered in the security analysis of such quantum cryptosystems.
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"abstract": "A general study of arbitrary finite-size coherent attacks against\ncontinuous-variable quantum cryptographic schemes is presented. It is shown\nthat, if the size of the blocks that can be coherently attacked by an\neavesdropper is fixed and much smaller than the key size, then the optimal\nattack for a given signal-to-noise ratio in the transmission line is an\nindividual gaussian attack. Consequently, non-gaussian coherent attacks do not\nneed to be considered in the security analysis of such quantum cryptosystems.",
"arxiv_id": "quant-ph/0311006",
"authors": [
"Frederic Grosshans",
"Nicolas J. Cerf"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.92.047905",
"journal_ref": "Phys. Rev. Lett. 92, 047905 (2004)",
"title": "Continuous-variable quantum cryptography is secure against non-gaussian attacks",
"url": "https://arxiv.org/abs/quant-ph/0311006"
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