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Formalization and proof of the security for quantum key distribution

Research Project

Project/Area Number 18700016
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Fundamental theory of informatics
Research InstitutionNational Institute of Informatics

Principal Investigator

WATANABE Yodai  National Institute of Informatics, 情報学プリンシプル研究系, 助教 (70360675)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2006: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywords量子暗号 / 量子鍵配送 / 情報量的安全性
Research Abstract

本研究では,盗聴者の情報がハッシュ関数に依存しうる状況にも適用可能な秘匿性増強の安全性証明を与えた.その結果,最終鍵に関する盗聴者の相互情報量は若干増加するが,既存の結果と同じ圧縮率で安全な秘匿性増強が構成できることがわかった.さらに,Jensenの作用素不等式を用いることによって,既存の古典の結果と一致する鍵生成レートを持つ量子秘匿性増強の安全性証明を与えた.

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (13 results)

All 2008 2007 2006 Other

All Journal Article (4 results) (of which Peer Reviewed: 2 results) Presentation (4 results) Remarks (1 results) Patent(Industrial Property Rights) (4 results) (of which Overseas: 2 results)

  • [Journal Article] Privacy amplification for quantum key distribution, Journal of Physics A2007

    • Author(s)
      Yodai Watanabe
    • Journal Title

      Mathematical and Theoretical 40

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Differential geometry on diffeomorphism groups and Lagrangian stability of viscous flows2007

    • Author(s)
      Yodai Watanabe
    • Journal Title

      Physica 225

      Pages: 197-203

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Privacy amplification for quantum key distribution2007

    • Author(s)
      Yodai Watanabe
    • Journal Title

      J. Phys. A : Math. Theor. 40

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Differential geometry on diffeomorphism groups and Lagrangian stability of viscous flows2007

    • Author(s)
      Yodai Watanabe
    • Journal Title

      Physica D 225

      Pages: 197-203

    • Related Report
      2006 Annual Research Report
  • [Presentation] 量子秘匿性増強の鍵生成レートについて2008

    • Author(s)
      渡辺曜大
    • Organizer
      第31回情報理論とその応用シンポジウム
    • Place of Presentation
      栃木県日光
    • Year and Date
      2008-10-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] 量子秘匿性増強の鍵生成レートについて2008

    • Author(s)
      渡辺曜大
    • Organizer
      第31回情報理論とその応用シンポジウム予稿
    • Related Report
      2008 Final Research Report
  • [Presentation] 量子暗号における秘匿性増強2006

    • Author(s)
      渡辺曜大
    • Organizer
      第7回代数幾何・数論及び符号・暗号研究集会報告集
    • Related Report
      2008 Final Research Report
  • [Presentation] 量子鍵配送における秘匿性増強2006

    • Author(s)
      渡辺曜大
    • Organizer
      第29回情報理論とその応用シンポジウム予稿集
    • Related Report
      2008 Final Research Report
  • [Remarks] 日本広用数理学会若手優秀講演賞受賞

    • URL

      http://www.nii.ac.jp/news_jp/2007/04/2006_4.shtml

    • Related Report
      2007 Annual Research Report
  • [Patent(Industrial Property Rights)] 量子鍵配送方法および通信装置2008

    • Inventor(s)
      渡辺曜大
    • Industrial Property Rights Holder
      情報・システム研究機構
    • Acquisition Date
      2008-12-19
    • Related Report
      2008 Final Research Report
  • [Patent(Industrial Property Rights)] 量子鍵配送方法および通信装置2008

    • Inventor(s)
      渡辺曜大
    • Industrial Property Rights Holder
      情報・システム研究機構
    • Acquisition Date
      2008-12-19
    • Related Report
      2008 Annual Research Report
  • [Patent(Industrial Property Rights)] 量子鍵配送方法および通信装置2007

    • Inventor(s)
      渡辺曜大
    • Industrial Property Rights Holder
      情報・システム研究機構
    • Filing Date
      2007-07-24
    • Related Report
      2008 Final Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 量子鍵配送方法および通信装置2007

    • Inventor(s)
      渡辺 曜大
    • Industrial Property Rights Holder
      情報・システム研究機構
    • Filing Date
      2007-07-24
    • Related Report
      2007 Annual Research Report
    • Overseas

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Published: 2006-04-01   Modified: 2016-04-21  

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