dorsal/arxiv
View SchemaQuantum stream cipher based on optical communications
| Authors | Osamu Hirota, Kentaro Kato, Masaki Sohma, Tsuyoshi S. Usuda, Katsuyoshi Harasawa |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407062 |
| URL | https://arxiv.org/abs/quant-ph/0407062 |
| DOI | 10.1117/12.561778 |
Abstract
In 2000, an attractive new quantum cryptography was discovered by H.P.Yuen based on quantum communication theory. It is applicable to direct encryption, for example quantum stream cipher based on Yuen protocol(Y-00), with high speeds and for long distance by sophisticated optical devices which can work under the average photon number per signal light pulse:$<n> = 1000 \sim 10000$. In addition, it may provide information-theoretic security against known/chosen plaintext attack, which has no classical analogue. That is, one can provide secure communication, even the system has $H(K) << H(X)$. In this paper, first, we give a brief review on the general logic of Yuen's theory. Then, we show concrete security analysis of quantum stream cipher to quantum individual measurement attacks. Especially by showing the analysis of Lo-Ko known plaintext attack, the feature of Y-00 is clarified. In addition, we give a simple experimental result on the advantage distillation by scheme consisting of intensity modulation/direct detection optical communication.
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"abstract": "In 2000, an attractive new quantum cryptography was discovered by H.P.Yuen\nbased on quantum communication theory. It is applicable to direct encryption,\nfor example quantum stream cipher based on Yuen protocol(Y-00), with high\nspeeds and for long distance by sophisticated optical devices which can work\nunder the average photon number per signal light pulse:$\u003cn\u003e = 1000 \\sim 10000$.\nIn addition, it may provide information-theoretic security against known/chosen\nplaintext attack, which has no classical analogue. That is, one can provide\nsecure communication, even the system has $H(K) \u003c\u003c H(X)$.\n In this paper, first, we give a brief review on the general logic of Yuen\u0027s\ntheory. Then, we show concrete security analysis of quantum stream cipher to\nquantum individual measurement attacks. Especially by showing the analysis of\nLo-Ko known plaintext attack, the feature of Y-00 is clarified. In addition, we\ngive a simple experimental result on the advantage distillation by scheme\nconsisting of intensity modulation/direct detection optical communication.",
"arxiv_id": "quant-ph/0407062",
"authors": [
"Osamu Hirota",
"Kentaro Kato",
"Masaki Sohma",
"Tsuyoshi S. Usuda",
"Katsuyoshi Harasawa"
],
"categories": [
"quant-ph"
],
"doi": "10.1117/12.561778",
"title": "Quantum stream cipher based on optical communications",
"url": "https://arxiv.org/abs/quant-ph/0407062"
},
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