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A Research on File Sharing System for Cloud Storages with File/Directory Name Encryption

Research Project

Project/Area Number 25730085
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Information security
Research InstitutionHiroshima University

Principal Investigator

OHIGASHI Toshihiro  広島大学, 情報メディア教育研究センター, 助教 (80508127)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords属性ベース暗号 / クラウドストレージ / 秘密分散法 / ストリーム暗号 / ID連携
Outline of Final Research Achievements

In this research, I proposed a secure file sharing system for cloud storage services with access control by using Ciphertext-Policy Attribute Based Encryption (CP-ABE). The proposed system can protect the contents of files and the file names/directory names, which were not discussed by the past CP-ABE based systems. Moreover, I implemented a prototype system, and evaluated the processing time in order to demonstrate the practicality of the proposed system.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (13 results)

All 2015 2014 2013

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Acknowledgement Compliant: 3 results) Presentation (8 results)

  • [Journal Article] Full Plaintext Recovery Attacks on RC4 Using Multiple Biases2015

    • Author(s)
      Toshihiro OHIGASHI, Takanori ISOBE, Yuhei WATANABE, and Masakatu MORII
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E98.A Issue: 1 Pages: 81-91

    • DOI

      10.1587/transfun.E98.A.81

    • NAID

      130004770880

    • ISSN
      0916-8508, 1745-1337
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] How to Recover Any Byte of Plaintext on RC42014

    • Author(s)
      Toshihiro OHIGASHI, Takanori ISOBE, Yuhei WATANABE, and Masakatu MORII
    • Journal Title

      Proceedings of Selected Areas in Cryptography 2013

      Volume: LNCS 8282 Pages: 155-173

    • DOI

      10.1007/978-3-662-43414-7_8

    • ISBN
      9783662434130, 9783662434147
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Implementation and Evaluation of Secure Outsourcing Scheme for Secret Sharing Scheme on Cloud Storage Services2014

    • Author(s)
      Toshihiro OHIGASHI, Kouta YOSHIDA, Kouji NISHIMURA, and Reiji AIBARA
    • Journal Title

      Proceedings of the 2014 IEEE 38th Annual International Computers, Software and Applications Conference Workshops, ADMNET 2014

      Volume: 無し Pages: 78-83

    • DOI

      10.1109/compsacw.2014.17

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 秘密分散法を利用したクラウドストレージサービスにおけるモバイル機器を考慮した安全な処理委託方式2014

    • Author(s)
      吉田耕太, 西村浩二, 大東俊博, 相原玲二
    • Journal Title

      情報処理学会論文誌

      Volume: 55 Pages: 1117-1125

    • NAID

      110009752399

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 暗号文ポリシー属性ベース暗号を利用したファイル名暗号化ファイル共有サービスの実装と性能評価2014

    • Author(s)
      大東俊博, 後藤めぐ美, 西村浩二, 相原玲二
    • Journal Title

      情報処理学会論文誌

      Volume: 55 Pages: 1126-1139

    • NAID

      110009752400

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] RC4に対する平文回復攻撃の改良2014

    • Author(s)
      大東俊博, 渡辺優平, 森井昌克
    • Organizer
      Computer Security Symposium 2014
    • Place of Presentation
      札幌コンベンションセンター(北海道札幌市)
    • Year and Date
      2014-10-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] SSL/TLSでのRC4に対する平文回復攻撃の改良2014

    • Author(s)
      渡辺優平, 大東俊博, 森井昌克
    • Organizer
      2014年暗号と情報セキュリティシンポジウム
    • Place of Presentation
      城山観光ホテル(鹿児島県鹿児島市)
    • Related Report
      2013 Research-status Report
  • [Presentation] SSL/TLSのRC4へのActive Attack2014

    • Author(s)
      大東俊博, 五十部孝典, 渡辺優平, 野島良, 森井昌克
    • Organizer
      電子情報通信学会情報通信システムセキュリティ研究会
    • Place of Presentation
      名桜大学(沖縄県名護市)
    • Related Report
      2013 Research-status Report
  • [Presentation] Vulnerability of RC4 in SSL/TLS2013

    • Author(s)
      Yuhei Watanabe, Takanori Isobe, Toshihiro Ohigashi, and Masakatu Morii
    • Organizer
      電子情報通信学会情報通信システムセキュリティ研究会
    • Place of Presentation
      アオーレ長岡(新潟県長岡市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 秘密分散法を利用したクラウドストレージサービスのための安全な処理委託方式2013

    • Author(s)
      吉田耕太, 西村浩二, 大東俊博, 相原玲二
    • Organizer
      情報処理学会インターネットと運用技術研究会
    • Place of Presentation
      武蔵大学(東京都練馬区)
    • Related Report
      2013 Research-status Report
  • [Presentation] 属性ベース暗号を用いたセキュアオンラインストレージシステムの開発について2013

    • Author(s)
      大東俊博
    • Organizer
      次世代セキュア情報基盤ワークショップ
    • Place of Presentation
      広島大学(広島県東広島市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 秘密分散法を利用したクラウドストレージサービスのための安全な処理委託方式の実装と評価2013

    • Author(s)
      吉田耕太, 西村浩二, 大東俊博, 相原玲二
    • Organizer
      Computer Security Symposium 2013
    • Place of Presentation
      サンポート高松(香川県高松市)
    • Related Report
      2013 Research-status Report
  • [Presentation] Implementation and Evaluation of Secure Outsourcing Scheme for Cloud Storage Services using Secret Sharing Scheme2013

    • Author(s)
      Kouta Yoshida, Kouji Nishimura, Toshihiro Ohigashi, and Reiji Aibara
    • Organizer
      The 8th International Workshop on Security, Poster Session
    • Place of Presentation
      沖縄県市町村自治会館(沖縄県那覇市)
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2023-03-16  

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