dorsal/arxiv
View SchemaQuantum Cryptography: Security Criteria Reexamined
| Authors | Dagomir Kaszlikowski, Ajay Gopinathan, Yeong Cherng Liang, L. C. Kwek, Berthold-Georg Englert |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0310144 |
| URL | https://arxiv.org/abs/quant-ph/0310144 |
| DOI | 10.1103/PhysRevA.70.032306 |
| Journal | Physical Review A, vol. 70, art. 032306 (5 pages) (2004) |
Abstract
We find that the generally accepted security criteria are flawed for a whole class of protocols for quantum cryptography. This is so because a standard assumption of the security analysis, namely that the so-called square-root measurement is optimal for eavesdropping purposes, is not true in general. There are rather large parameter regimes in which the optimal measurement extracts substantially more information than the square-root measurement.
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"abstract": "We find that the generally accepted security criteria are flawed for a whole\nclass of protocols for quantum cryptography. This is so because a standard\nassumption of the security analysis, namely that the so-called square-root\nmeasurement is optimal for eavesdropping purposes, is not true in general.\nThere are rather large parameter regimes in which the optimal measurement\nextracts substantially more information than the square-root measurement.",
"arxiv_id": "quant-ph/0310144",
"authors": [
"Dagomir Kaszlikowski",
"Ajay Gopinathan",
"Yeong Cherng Liang",
"L. C. Kwek",
"Berthold-Georg Englert"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.70.032306",
"journal_ref": "Physical Review A, vol. 70, art. 032306 (5 pages) (2004)",
"title": "Quantum Cryptography: Security Criteria Reexamined",
"url": "https://arxiv.org/abs/quant-ph/0310144"
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