dorsal/arxiv
View SchemaQuantum stream cipher by Yuen 2000 protocol: Design and experiment by intensity modulation scheme
| Authors | Osamu Hirota, Masaki Sohma, Masaru Fuse, Kentaro Kato |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0507043 |
| URL | https://arxiv.org/abs/quant-ph/0507043 |
| DOI | 10.1103/PhysRevA.72.022335 |
Abstract
This paper shall investigate Yuen protocol, so called Y-00, which can realize a randomized stream cipher with high bit rate(Gbps) for long distance(several hundreds km). The randomized stream cipher with randomization by quantum noise based on Y-00 is called quantum stream cipher in this paper, and it may have security against known plaintext attacks which has no analog with any conventional symmetric key ciphers. We present a simple cryptanalysis based on an attacker's heterodyne measurement and the quantum unambiguous measurement to make clear the strength of Y-00 in real communication. In addition, we give a design for the implementation of an intensity modulation scheme and report the experimental demonstration of 1 Gbps quantum stream cipher through 20 km long transmission line.
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"abstract": "This paper shall investigate Yuen protocol, so called Y-00, which can realize\na randomized stream cipher with high bit rate(Gbps) for long distance(several\nhundreds km). The randomized stream cipher with randomization by quantum noise\nbased on Y-00 is called quantum stream cipher in this paper, and it may have\nsecurity against known plaintext attacks which has no analog with any\nconventional symmetric key ciphers. We present a simple cryptanalysis based on\nan attacker\u0027s heterodyne measurement and the quantum unambiguous measurement to\nmake clear the strength of Y-00 in real communication. In addition, we give a\ndesign for the implementation of an intensity modulation scheme and report the\nexperimental demonstration of 1 Gbps quantum stream cipher through 20 km long\ntransmission line.",
"arxiv_id": "quant-ph/0507043",
"authors": [
"Osamu Hirota",
"Masaki Sohma",
"Masaru Fuse",
"Kentaro Kato"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.022335",
"title": "Quantum stream cipher by Yuen 2000 protocol: Design and experiment by intensity modulation scheme",
"url": "https://arxiv.org/abs/quant-ph/0507043"
},
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