An Experimental Realization of Quantum Cryptosystem(Special Section on Cryptography and Information Security)
スポンサーリンク
概要
- 論文の詳細を見る
Quantum cryptography has two advantages in comparison with conventional cryptography : one is that its security is guaranteed by a fundamental physical law, and the other is that it can detect eavesdropping. In this paper, we focus on an experimental realization of quantum cryptography as a total security system. To realize this, we adopt an interferometric optical system using Faraday mirror and improve its optical system. We also utilize semiconductor laser at a short wavelength(830nm). As a result, we have successfully implemented quantum cryptosystem including error correction and privacy amplification. We confirmed that key distribution was performed at a rate of 1.1kbps with a 1.7% QBER(quantum bit error rate)over a distance of 200m(optical fiber). We also show our experimental results over a distance of 1 km(optical fiber)at a rate of 0.76 kbps.
- 社団法人電子情報通信学会の論文
- 2002-01-01
著者
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Shimizu K
The Authors Are With Department Of Electrical And Electronics Engineering The Faculty Of Science And
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TAKEUCHI Shigeki
Research Institute for Electronic Science, Hokkaido University
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MATSUI Mitsuru
Information Technology R&D Laboratories, Mitsubishi Electric Corporation
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NISHIOKA Tsuyoshi
Information Technology R&D Center, Mitsubishi Electric Corporation
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Shimizu K
Ntt Network Innovation Laboratories
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SHIMIZU Katsuhiro
Information and Technology R&D Center, Mitsubishi Electric Corporation
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HASEGAWA Toshio
Information Technology R&D Center, Mitsubishi Electric Corporation
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ISHIZUKA Hirokazu
Information Technology R&D Center, Mitsubishi Electric Corporation
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Takeuchi S
Research Institute For Electronic Science Hokkaido University
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Matsui Mitsuru
Information Technology R&d Center Mitsubishi Electric Corporation
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Ishizuka Hirokazu
Information Technology R&d Center Mitsubishi Electric Corporation
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Takeuchi Shigeki
Research Institute For Electronic Science Hokkaido University
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Hasegawa Toshio
Information Technology R&d Center Mitsubishi Electric Corporation
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Abe Jun'ichi
Information Technology R&d Center Mitsubishi Electric Corporation
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Nishioka Tsuyoshi
Information Technology R&d Center Mitsubishi Electric Corporation
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Nishioka Tsuyoshi
Information Technology R&D Center, Mitsubishi Electric Corporation
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- FOREWORD
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