dorsal/arxiv
View SchemaSecurity of differential phase shift quantum key distribution against individual attacks
| Authors | Edo Waks, Hiroki Takesue, Yoshihisa Yamamoto |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0508112 |
| URL | https://arxiv.org/abs/quant-ph/0508112 |
| DOI | 10.1103/PhysRevA.73.012344 |
Abstract
We derive a proof of security for the Differential Phase Shift Quantum Key Distribution (DPSQKD) protocol under the assumption that Eve is restricted to individual attacks. The security proof is derived by bounding the average collision probability, which leads directly to a bound on Eve's mutual information on the final key. The security proof applies to realistic sources based on pulsed coherent light. We then compare individual attacks to sequential attacks and show that individual attacks are more powerful.
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"abstract": "We derive a proof of security for the Differential Phase Shift Quantum Key\nDistribution (DPSQKD) protocol under the assumption that Eve is restricted to\nindividual attacks. The security proof is derived by bounding the average\ncollision probability, which leads directly to a bound on Eve\u0027s mutual\ninformation on the final key. The security proof applies to realistic sources\nbased on pulsed coherent light. We then compare individual attacks to\nsequential attacks and show that individual attacks are more powerful.",
"arxiv_id": "quant-ph/0508112",
"authors": [
"Edo Waks",
"Hiroki Takesue",
"Yoshihisa Yamamoto"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.73.012344",
"title": "Security of differential phase shift quantum key distribution against individual attacks",
"url": "https://arxiv.org/abs/quant-ph/0508112"
},
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