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Study on the general physical cipher beyond the Shannon limit

Research Project

Project/Area Number 24656245
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Communication/Network engineering
Research InstitutionTamagawa University

Principal Investigator

FUTAMI FUMIO  玉川大学, 量子情報科学研究所, 准教授 (20417695)

Co-Investigator(Kenkyū-buntansha) SOHMA Masaki  玉川大学, 工学部, 教授 (70384716)
HIROTA Osamu  玉川大学, 量子情報科学研究所, 教授 (40114889)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords暗号のシャノン限界 / 物理暗号 / 暗号学のシャノン限界 / シャノン限界 / 一般化物理暗号
Research Abstract

The scheme of coherent pulse position modulation with phase mask is expected to be a concrete method of realization of the generalized wiretapped channel model (keyed communication in quantum noise) which provides the security beyond the Shannon limit of the cryptography. For realizing such a new idea, we have studied a scheme of Y-00 quantum stream cipher with phase mask and demonstrated a simple model for the phase mask modulation scheme. The phase mask is realized in the frequency domain by using optical devices such as the liquid-crystal spatial light modulators operating in the wavelength range of 1.5 micrometer suitable for the optical fiber communication. This result will give a great progress to realize whole scheme of Y-00 quantum stream cipher beyond the Shannon limit.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (12 results)

All 2014 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (7 results) Remarks (2 results)

  • [Journal Article] Masking property of quantum random cipher with phase mask encryption2014

    • Author(s)
      Masaki Sohma, Osamu Hirota
    • Journal Title

      Quantum Information Processin, Spriinger

      Volume: 13 Issue: 10 Pages: 2221-2239

    • DOI

      10.1007/s11128-014-0748-4

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Quantum random cipher with phase mask encryption2013

    • Author(s)
      Masaki Sohma, Osamu Hirota
    • Journal Title

      Tamagawa University Quantum ICT Research Insitute bulletin

      Volume: Vol.1 Pages: 5-9

    • NAID

      40019816414

    • URL

      http://www.tamagawa.jp/research/quantum/bulletin/pdf/Tamagawa.Vol.2-2.pdf

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Quantum random cipher with phase mask encryption2013

    • Author(s)
      Masaki Sohma, Osamu Hirota
    • Journal Title

      Tamagawa University Quantum ICT Research Institute Bulletin

      Volume: 2 Pages: 5-9

    • NAID

      40019816414

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Y-00実験評価進捗状況とシャノン限界を超える物理暗号について2014

    • Author(s)
      二見史生
    • Organizer
      第12回量子情報ミニワークショップ
    • Place of Presentation
      花乃丸(愛知県知多郡)
    • Year and Date
      2014-01-21
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] Quantum random cipher with phase mask encryption2013

    • Author(s)
      相馬正宜
    • Organizer
      第11回量子情報ミニワークショップ
    • Place of Presentation
      鳥羽シーサイドホテル(三重県)
    • Year and Date
      2013-02-21
    • Related Report
      2013 Final Research Report
  • [Presentation] Y-00暗号通信システム研究開発状況と展望2013

    • Author(s)
      二見史生
    • Organizer
      第11回量子情報ミニワークショップ
    • Place of Presentation
      鳥羽シーサイドホテル(三重県)
    • Year and Date
      2013-02-20
    • Related Report
      2013 Final Research Report
  • [Presentation] Coherent pulse position modulation quantum cipher2012

    • Author(s)
      Masaki Sohma, Osamu Hirota
    • Organizer
      11^<th> International Conference on Quantum Communication, Measurement and Computing
    • Place of Presentation
      ウィーン(オーストリア)
    • Year and Date
      2012-08-02
    • Related Report
      2013 Final Research Report
  • [Presentation] Coherent pulse position modulation quantum cipher

    • Author(s)
      Masaki Sohma and Osamu Hirota
    • Organizer
      11th International Conference on Quantum Communication, Measurement and Computing
    • Place of Presentation
      Vienna (Austria)
    • Related Report
      2012 Research-status Report
  • [Presentation] Quantum random cipher with phase mask encryption

    • Author(s)
      相馬正宜
    • Organizer
      第11回 量子情報ミニワークショップ
    • Place of Presentation
      鳥羽シーサイドホテル(三重県)
    • Related Report
      2012 Research-status Report
  • [Presentation] Y-00暗号通信システム研究開発状況と展望

    • Author(s)
      二見史生
    • Organizer
      第11回 量子情報ミニワークショップ
    • Place of Presentation
      鳥羽シーサイドホテル(三重県)
    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      http://www.tamagawa.jp/research/quantum

    • Related Report
      2013 Final Research Report
  • [Remarks] 量子情報科学研究所

    • URL

      http://www.tamagawa.jp/research/quantum/

    • Related Report
      2012 Research-status Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

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