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時刻で制御可能な暗号基礎技術の研究開発

Research Project

Project/Area Number 13J03998
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Media informatics/Database
Research InstitutionYokohama National University

Principal Investigator

渡邉 洋平  横浜国立大学, 環境情報学府, 特別研究員(DC1)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2015: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2014: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2013: ¥900,000 (Direct Cost: ¥900,000)
Keywords暗号理論 / 情報理論的安全性 / 計算量的安全性 / 時刻制御 / タイムリリース暗号 / 放送型暗号 / 秘密分散法 / 暗号プロトコル / 認証 / 暗号
Outline of Annual Research Achievements

平成27年度は,① 時刻の「開始」を制御する暗号技術,及び ② 時刻の「停止」を制御する暗号技術,それぞれについて研究を行った.
① 前年度までに発表してきたタイムリリース暗号技術について,更に完成度を上げ,国際論文誌にて発表を行った.具体的には,情報理論的安全性に基づくタイムリリース秘密分散法について,拡張に関する議論を行ったものを発表した.また,計算量的安全性に基づくタイムリリース秘密分散法についても,前年度発表した論文に厳密な安全性証明や応用を与えた完全版を,国際論文誌に投稿している.また,前年度から国際論文誌に投稿中であったタイムリリース性をもつ情報理論的に安全な鍵共有方式,暗号化方式,認証方式に関する論文も,未だ査読中である.
② クラウドストレージ上で時刻の「停止」を制御する放送型暗号技術について,国際会議等でポスター発表・招待講演を行った他,国内会議にて論文賞を受賞した.同内容は現在,査読付き国際会議に投稿中である.更に,同内容に関連して,放送型暗号技術における暗号文長と秘密鍵長間のトレードオフを効率的に達成する方式を提案し,国内会議及び国際会議で発表した.また,一定期間(一定時刻)ごとに鍵等の秘密情報を無効化可能な階層型鍵隔離暗号やIDベース暗号,検索可能暗号等の成果についても,国内会議及び国際会議で発表した.
平成27年度の本研究課題計画は,これまでの研究成果から「任意の時刻で機能を制御するコア・プリミティブ」を抽出することであった.しかしながら,研究を進めていく中で,そのようなプリミティブを抽出し一般化するよりも,各基礎技術レベルで時刻制御機能を追求していく方が,それぞれより理想的な機能を実現できることに気付いた.従って,時刻制御機能をもつ各暗号基礎技術における基礎研究を完成させることで,本研究課題の最終目標の達成に結び付けた.

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (41 results)

All 2016 2015 2014 2013 Other

All Journal Article (19 results) (of which Peer Reviewed: 12 results,  Acknowledgement Compliant: 6 results) Presentation (19 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (3 results)

  • [Journal Article] Information-Theoretically Secure Timed-Release Secret Sharing Schemes2016

    • Author(s)
      Y. Watanabe and J. Shikata
    • Journal Title

      Journal of Information Processing

      Volume: 24

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Unconditionally Secure Broadcast Encryption Schemes with Trade-offs between Communication and Storage2016

    • Author(s)
      Y. Watanabe and J. Shikata
    • Journal Title

      IEICE Transactions

      Volume: 99-A

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Identity-based Hierarchical Key-insulated Encryption without Random Oracles2016

    • Author(s)
      Y. Watanabe, J. Shikata
    • Journal Title

      Public-Key Cryptography (PKC 2016), Springer

      Volume: LNCS 9614 Pages: 255-279

    • DOI

      10.1007/978-3-662-49384-7_10

    • ISBN
      9783662493830, 9783662493847
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] スタンダードモデルにおけるIDベース階層型鍵隔離暗号の構成法2016

    • Author(s)
      渡邉洋平,四方順司
    • Journal Title

      暗号と情報セキュリティシンポジウム 2016 (SCIS 2016)予稿集

      Volume: なし

    • Related Report
      2015 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] Constructions of Unconditionally Secure Broadcast Encryption from Key Predistribution Systems with Trade-offs between Communication and Storage2015

    • Author(s)
      Y. Watanabe, J. Shikata
    • Journal Title

      Provable Security (ProvSec 2015), Springer

      Volume: LNCS 9451 Pages: 489-502

    • DOI

      10.1007/978-3-319-26059-4_27

    • ISBN
      9783319260587, 9783319260594
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Keyword Revocable Searchable Encryption with Trapdoor Exposure Resistance and Re-generateability2015

    • Author(s)
      K. Emura, L.T. Phong, and Y.Watanabe
    • Journal Title

      Proc. of 2015 IEEE Trustcom/BigDataSE/ISPA

      Volume: なし Pages: 167-174

    • DOI

      10.1109/trustcom.2015.371

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 暗号文長と秘密鍵長間のトレードオフをもつ情報理論的に安全な放送型暗号の構成法2015

    • Author(s)
      渡邉洋平,四方順司
    • Journal Title

      コンピューターセキュリティシンポジウム 2015 (CSS 2015) 予稿集

      Volume: なし Pages: 395-402

    • NAID

      170000151356

    • Related Report
      2015 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] Timed-Release Secret Sharing Schemes with Information Theoretic Security2015

    • Author(s)
      Yohei Watanabe and Junji Shikata
    • Journal Title

      Proc. of the 1st International Conference on Cryptography and Information Security in Balkans (BalkanCryptSec2014)

      Volume: 印刷中

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 暗号文の耐改変性と復号権限の変更機能をもつ情報理論的に安全性な放送型暗号2015

    • Author(s)
      渡邉洋平,花岡悟一郎,四方順司
    • Journal Title

      暗号と情報セキュリティシンポジウム 2015 (SCIS2015) 論文集

      Volume: なし

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Timed-Release Computational Secret Sharing Scheme and Its Applications2014

    • Author(s)
      Yohei Watanabe and Junji Shikata
    • Journal Title

      Provable Security

      Volume: 8782 Pages: 115-133

    • DOI

      10.1007/978-3-319-12475-9_24

    • ISBN
      9783319124742, 9783319124759
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 受信者集合を変更可能な情報理論的安全性に基づく放送型暗号2014

    • Author(s)
      渡邉洋平,四方順司
    • Journal Title

      コンピュータセキュリティシンポジウム 2014 (CSS 2014) 論文集

      Volume: なし

    • NAID

      170000087362

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Information-Theoretically Secure Anonymous Group Authentication with Arbitration : Formal Definition and Construction2014

    • Author(s)
      T. Seito, Y. Watanabe, K. Kinose, J. Shikata
    • Journal Title

      Josai Mathematical Monograph

      Volume: (印刷中)

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Information-Theoretically Secure Entity Authentication in the Multi-user Setting2014

    • Author(s)
      S. Hajime, Y. Watanabe, J. Shikata
    • Journal Title

      Proc. of The 16th Annual International Conference on Information Security and Cryptology (ICISC 2013)

      Volume: (印刷中)

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unconditionally Secure Blind Authentication Codes in the Manual Channel Model2014

    • Author(s)
      N. Takei, Y. Watanabe, J. Shikata
    • Journal Title

      Proc. of The 3rd International Symposium on Engineering, Energy and Environment (3rd ISEEE)

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unconditionally Secure Anonymous Group Authentication with an Arbiter2014

    • Author(s)
      T. Seito, Y. Watanabe, K. Kinose, J. Shikata
    • Journal Title

      Proc. of The 3rd International Symposium on Engineering, Energy and Environment (3rd ISEEE)

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 計算量的に安全なタイムリリース秘密分散法2014

    • Author(s)
      渡邊洋平, 四方順司
    • Journal Title

      暗号と情報セキュリティシンポジウム2014 (SCIS2014)論文集

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Information-Theoretically Secure Aggregate Authentication Code : Model, Bounds, and Constructions2013

    • Author(s)
      A. Kubai, J. Shikata, Y. Watanabe
    • Journal Title

      Proc. of CD-ARES 2013 Workshops(Springer LNCS 8128)

      Volume: LNCS 8128 Pages: 16-28

    • DOI

      10.1007/978-3-642-40588-4_2

    • ISBN
      9783642405877, 9783642405884
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 情報理論的に安全なタイムリリース秘密分散法2013

    • Author(s)
      渡邉洋平, 四方順司
    • Journal Title

      コンピューターセキュリティシンポジウム2013 (CSS2013)論文集

    • NAID

      170000080797

    • Related Report
      2013 Annual Research Report
  • [Journal Article] 検証者の秘密鍵を必要としない情報理論的に安全なブラインド認証方式2013

    • Author(s)
      武井教泰, 渡邊洋平, 四方順司
    • Journal Title

      コンピューターセキュリティシンポジウム2013 (CSS2013)論文集

    • Related Report
      2013 Annual Research Report
  • [Presentation] Identity-based Hierarchical Key-insulated Encryption without Random Oracles2016

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 19th International Conference on the Theory and Practice of Public-Key Cryptography (PKC 2016)
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2016-03-06
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] スタンダードモデルにおけるIDベース階層型鍵隔離暗号の構成法2016

    • Author(s)
      渡邉洋平
    • Organizer
      暗号と情報セキュリティシンポジウム 2016 (SCIS 2016)
    • Place of Presentation
      熊本,日本
    • Year and Date
      2016-01-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] Constructions of Unconditionally Secure Broadcast Encryption from Key Predistribution Systems with Trade-offs between Communication and Storage2015

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 9th International Conference on Provable Security (ProvSec 2015)
    • Place of Presentation
      石川,日本
    • Year and Date
      2015-11-24
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 暗号文長と秘密鍵長間のトレードオフをもつ情報理論的に安全な放送型暗号の構成法2015

    • Author(s)
      渡邉洋平
    • Organizer
      コンピュータセキュリティシンポジウム2015 (CSS 2015)
    • Place of Presentation
      長崎,日本
    • Year and Date
      2015-10-21
    • Related Report
      2015 Annual Research Report
  • [Presentation] Unconditionally Secure Revocable Storage2015

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 10th International Workshop on Security
    • Place of Presentation
      奈良,日本
    • Year and Date
      2015-08-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Keyword Revocable Searchable Encryption with Trapdoor Exposure Resistance and Re-generateability2015

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 14th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (IEEE TrustCom 2015)
    • Place of Presentation
      Helsinki, Finland
    • Year and Date
      2015-08-20
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 暗号文の耐改変性と復号権限の変更機能をもつ情報理論的に安全性な放送型暗号2015

    • Author(s)
      渡邉洋平
    • Organizer
      暗号と情報セキュリティシンポジウム 2015 (SCIS 2015)
    • Place of Presentation
      小倉,福岡
    • Year and Date
      2015-01-20 – 2015-01-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] 受信者集合を変更可能な情報理論的安全性に基づく放送型暗号2014

    • Author(s)
      渡邉洋平
    • Organizer
      コンピュータセキュリティシンポジウム2014 (CSS 2014)
    • Place of Presentation
      札幌,北海道
    • Year and Date
      2014-10-22 – 2014-10-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] Timed-Release Secret Sharing Schemes with Information Theoretic Security2014

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 1st International Conference on Cryptography and Information Security in Balkans (BalkanCryptSec2014)
    • Place of Presentation
      Istanbul, Turkey
    • Year and Date
      2014-10-16 – 2014-10-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] Timed-Release Computational Secret Sharing Scheme and Its Applications2014

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 8th International Conference on Provable Security (ProvSec2014)
    • Place of Presentation
      Hong Kong
    • Year and Date
      2014-10-09 – 2014-10-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] Information-Theoretically Secure Revocable-Storage Broadcast Encryption2014

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 9th International Workshop on Security (IWSEC2014)
    • Place of Presentation
      Hirosaki, Japan
    • Year and Date
      2014-08-27 – 2014-08-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] 計算量的に安全なタイムリリース秘密分散法2014

    • Author(s)
      渡邉洋平
    • Organizer
      暗号と情報セキュリティシンポジウム2014 (SCIS2014)
    • Place of Presentation
      城山観光ホテル, 鹿児島市, 鹿児島県
    • Year and Date
      2014-01-23
    • Related Report
      2013 Annual Research Report
  • [Presentation] Information-Theoreticany Secure Entity Authentication in the Multi-user Setting2013

    • Author(s)
      Shogo Hajime
    • Organizer
      The 16th Annual International Conference on Information Security and Cryptology (ICISC2013)
    • Place of Presentation
      Josai University, Tokyo, Japan
    • Year and Date
      2013-11-29
    • Related Report
      2013 Annual Research Report
  • [Presentation] Unconditionally Secure Anonymous Group Authentication with an Arbiter2013

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 3rd International Symposiumon Engineering, Energy and Environment (3rd ISEEE)
    • Place of Presentation
      Pullman King Power Hotel, Bangkok, Thailand
    • Year and Date
      2013-11-18
    • Related Report
      2013 Annual Research Report
  • [Presentation] Unconditionally Secure Blind Authentication Codes in the Manual Channel Model2013

    • Author(s)
      Noriyasu Takei
    • Organizer
      The 3rd International Symposium on Engineering, Energy and Environment (3rd ISEEE)
    • Place of Presentation
      Pullman King Power Hotel, Bangkok, Thailand
    • Year and Date
      2013-11-18
    • Related Report
      2013 Annual Research Report
  • [Presentation] Timed-Release Cryptography-Two Theoretical Approaches to Achieve Security2013

    • Author(s)
      Yohei Watanabe
    • Organizer
      JSPS-DST Asian Academic Seminar 2013 (AAS2013)
    • Place of Presentation
      The University of Tokyo, Tokyo, Japan
    • Year and Date
      2013-11-05
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 情報理論的に安全なタイムリリース秘密分散法2013

    • Author(s)
      渡邉洋平
    • Organizer
      コンピューターセキュリティシンポジウム2013 (CSS2013)
    • Place of Presentation
      かがわ国際会議場、高松市, 香川県
    • Year and Date
      2013-10-22
    • Related Report
      2013 Annual Research Report
  • [Presentation] 検証者の秘密鍵を必要としない情報理論的に安全なブラインド認証方式2013

    • Author(s)
      武井教泰
    • Organizer
      コンピューターセキュリティシンポジウム2013 (CSS 2013)
    • Place of Presentation
      かがわ国際会議場、高松市, 香川県
    • Year and Date
      2013-10-22
    • Related Report
      2013 Annual Research Report
  • [Presentation] Information-Theoretica11y Secure Aggregate Authentication Code : Model, Bounds, and Constructions2013

    • Author(s)
      Yohei Watanabe
    • Organizer
      The 2nd International Workshop on Modern Cryptography and Security Engineering (MoCrySEn 2013)
    • Place of Presentation
      University of Regensburg, Regensburg, Germany
    • Year and Date
      2013-09-02
    • Related Report
      2013 Annual Research Report
  • [Remarks] 四方研究室 - 研究業績

    • URL

      http://www.slab.ynu.ac.jp/publications.html

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report
  • [Remarks] 四方研究室 - 渡邉洋平

    • URL

      http://www.slab.ynu.ac.jp/watanabe.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 四方研究室ホームページ

    • URL

      http://www.slab.ynu.ac.jp/publications.html

    • Related Report
      2013 Annual Research Report

URL: 

Published: 2014-01-29   Modified: 2024-03-26  

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