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Research of cryptography with advanced functionality for e-book system

Research Project

Project/Area Number 16K00188
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Information security
Research InstitutionFuture University-Hakodate

Principal Investigator

Shirase Masaaki  公立はこだて未来大学, システム情報科学部, 准教授 (70530757)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords暗号 / 楕円曲線暗号 / 高機能暗号 / 電子書籍 / 楕円曲線 / ペアリング演算
Outline of Final Research Achievements

In order to develop an e-book system that realizes copyright protection and lending and borrowing management that applies cryptography with advanced functionality, which has been actively researched in recent years, the research devised a lending and borrowing management system for e-books that does not require access to any server, and the system is experimentally confirmed the operation by mounting. Since pairing operation required for this method is a heavy process, an alternative to pairing operation is proposed, which is called Me operation, and the theoretical properties of Me operation are investigated. As a result, although encryption using Me operation is not yet put to practical use, it turned out that the attack is more difficult compared to the elliptic curve cryptosystem with the same key length.

Academic Significance and Societal Importance of the Research Achievements

2000年以降研究が盛んであるが実用化はあまり進んでいない高機能暗号を初めて電子書籍システムに応用した点が本研究の学術的意義である。本研究で用いた高機能暗号は再代理人暗号であるが、類似手法のIDベース暗号、属性ベース暗号、放送型暗号といった別の高機能暗号も電子書籍システムへ応用することで暗号技術により電子書籍システムに新たな機能の付加が可能であることを示唆しており、電子書籍システムの発展に寄与できる点が本研究の社会的意義である。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (11 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Elliptic Curve Method Using Complex Multiplication Method2019

    • Author(s)
      AIKAWA Yusuke、NUIDA Koji、SHIRASE Masaaki
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E102.A Issue: 1 Pages: 74-80

    • DOI

      10.1587/transfun.E102.A.74

    • NAID

      130007541819

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2019-01-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Search of Elliptic Curves Suitable for Signature2019

    • Author(s)
      SHIRASE Masaaki
    • Journal Title

      International Journal of informatics Society (IJIS)

      Volume: 未定

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Elliptic Curves Suitable for Elliptic Curve Signature2018

    • Author(s)
      SHIRASE Masaaki
    • Organizer
      IWIN 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 有限体上楕円曲線の新しい演算に基づくDLPとECDLPの関係2018

    • Author(s)
      白勢政明
    • Organizer
      コンピュータセキュリティシンポジウム2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] New Operation and Problems on Elliptic curve and Their Application2018

    • Author(s)
      Masaaki Shirase
    • Organizer
      IEEE 2018 ICCE-TW
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 新しい楕円曲線演算によるキーワード検索暗号2018

    • Author(s)
      白勢政明
    • Organizer
      2018年暗号と情報セキュリティシンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] 有限体上楕円曲線の新しい演算に基づく離散対数問題の困難性とディジタル署名2018

    • Author(s)
      白勢政明
    • Organizer
      情報セキュリティ研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] A Digital Content Sharing Model Using Proxy Re-Encryption Without Server Access2017

    • Author(s)
      Masaaki Shirase
    • Organizer
      ICCE-TW 2017
    • Place of Presentation
      台北市(中国)
    • Year and Date
      2017-06-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 特別な形の素因数を持つ合成数の楕円曲線法による素因数分解II2017

    • Author(s)
      白勢政明
    • Organizer
      2017年暗号と情報セキュリティシンポジウム
    • Place of Presentation
      ロワジールホテル那覇(沖縄県那覇市)
    • Year and Date
      2017-01-24
    • Related Report
      2016 Research-status Report
  • [Presentation] 有限体上M関数を用いたM-スカラー倍算の提案とその性質及び応用2017

    • Author(s)
      白勢政明
    • Organizer
      日本応用数理学会2017年度年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 有限体上M関数の有限体上楕円曲線への拡張とその応用2017

    • Author(s)
      白勢政明
    • Organizer
      コンピュータセキュリティシンポジウム2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 特別な形の素因数を持つ合成数の楕円曲線法による素因数分解2016

    • Author(s)
      白勢政明
    • Organizer
      情報セキュリティ研究会(ISEC)
    • Place of Presentation
      福井市地域交流プラザ(福井県福井市)
    • Year and Date
      2016-11-07
    • Related Report
      2016 Research-status Report
  • [Presentation] p=(3V^2+1)/4を持つ合成数の楕円曲線法による素因数分解2016

    • Author(s)
      白勢政明
    • Organizer
      応用数理学会2016年度会
    • Place of Presentation
      北九州国際会議場(福岡県北九州市)
    • Year and Date
      2016-09-12
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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