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Developing a Paradigm for Constructions in Information Theoretic Cryptography and Its Applications

Research Project

Project/Area Number 18H03238
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 60070:Information security-related
Research InstitutionYokohama National University

Principal Investigator

Shikata Junji  横浜国立大学, 大学院環境情報研究院, 教授 (30345483)

Co-Investigator(Kenkyū-buntansha) 松本 勉  横浜国立大学, 大学院環境情報研究院, 教授 (40183107)
岩本 貢  電気通信大学, 大学院情報理工学研究科, 教授 (50377016)
太田 和夫  電気通信大学, 大学院情報理工学研究科, 特命教授 (80333491)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords暗号理論 / 情報理論的安全性 / 高機能暗号 / 情報理論 / 暗号・認証
Outline of Final Research Achievements

In order to develop information-theoretic cryptography, the purpose of this research is to construct complicated and advanced cryptographic protocols with information-theoretic security by a broad and systematic paradigm from both information theory and modern cryptography, and to apply resulting techniques to other research topics including construction of protocols with complexity-based security. The contribution of this research includes new constrictions of information-theoretically secure advanced protocols including fully homomorphic encryption and MPC including card-based protocols. In addition, from viewpoints of applications, our contribution includes new constructions of various advanced protocols with complexity-based security, and implementation analysis of randomness extractors and fully homomorphic encryption in resource-constrained devices.

Academic Significance and Societal Importance of the Research Achievements

暗号理論研究において、計算技術の発達、ネットワークの拡大、アルゴリズムの高速化、更には量子計算機のような新しい計算技術の登場に対しても安全性を保証できる暗号技術の開発は重要である。情報理論的安全性に基づく暗号技術はそれを可能とするため、そのニーズは今後の情報社会で益々求められ、またその応用範囲も広がっていくと考えられる。したがって、本研究成果は、多様で複雑な情報システムであふれる現代及び未来の情報社会のセキュリティ設計(クラウド計算, IoT等のセキュリティ等)において、時代の計算機技術に依存しない強力な安全性をもつ暗号技術開発の基盤となることが期待できる。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (81 results)

All 2022 2021 2020 2019 2018

All Journal Article (45 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 18 results,  Open Access: 4 results) Presentation (36 results) (of which Int'l Joint Research: 10 results,  Invited: 6 results)

  • [Journal Article] 情報銀行のセキュリティに関する一考察2022

    • Author(s)
      清藤武暢, 四方順司
    • Journal Title

      情報処理学会 研究報告コンピュータセキュリティ(CSEC)

      Volume: 2022-CSEC-96 Pages: 1-7

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Secure Computation for Threshold Functions with Physical Cards: Power of Private Permutations2022

    • Author(s)
      Nakai Takeshi、Shirouchi Satoshi、Tokushige Yuuki、Iwamoto Mitsugu、Ohta Kazuo
    • Journal Title

      New Generation Computing

      Volume: 40 Issue: 1 Pages: 95-113

    • DOI

      10.1007/s00354-022-00153-7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficient Card-Based Majority Voting Protocols2022

    • Author(s)
      Abe Yoshiki, Nakai Takeshi, Kuroki Yoshihisa, Suzuki Shinnosuke, Koga Yuta, Watanabe Yohei, Iwamoto Mitsugu, and Ohta Kazuo
    • Journal Title

      New Generation Computing

      Volume: 40 Issue: 1 Pages: 173-198

    • DOI

      10.1007/s00354-022-00161-7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 一様で閉じたシャッフルの効率的な実装2022

    • Author(s)
      岩成慶太, 中井雄士, 渡邉洋平, 栃窪孝也, 岩本貢
    • Journal Title

      暗号とセキュリティシンポジウム 2022 (SCIS2022)論文集

      Volume: -

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 効率的な漏洩耐性鍵隔離暗号2022

    • Author(s)
      淺野京一, 岩本貢, 渡邉洋平
    • Journal Title

      暗号とセキュリティシンポジウム 2022 (SCIS2022)論文集

      Volume: -

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 出力埋め込み可能な紛失擬似ランダム関数に基づく多者間秘匿積集合プロトコルの効率化2022

    • Author(s)
      清水聖也, 中井雄士, 渡邉洋平, 岩本貢
    • Journal Title

      暗号とセキュリティシンポジウム 2022 (SCIS2022)論文集

      Volume: -

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers2021

    • Author(s)
      K. Takemure, Y. Sakai, B. Santoso, G. Hanaoka, K. Ohta
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E104.A Issue: 9 Pages: 1188-1205

    • DOI

      10.1587/transfun.2020DMP0023

    • NAID

      130008081795

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2021-09-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 情報理論的に安全な完全準同型暗号に関する考察2021

    • Author(s)
      佐藤慎悟, 四方順司
    • Journal Title

      情報処理学会 研究報告コンピュータセキュリティ(CSEC)

      Volume: 2021-CSEC-92, No.69 Pages: 1-6

    • Related Report
      2020 Annual Research Report
  • [Journal Article] カードを用いた秘匿共通集合プロトコル2021

    • Author(s)
      土井アナスタシヤ, 中井雄士, 品川和雅, 渡邉洋平, 岩本貢
    • Journal Title

      暗号とセキュリティシンポジウム 2021 (SCIS2021)論文集

      Volume: -

    • NAID

      170000186069

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 秘密鍵の漏洩耐性を有する鍵隔離暗号2021

    • Author(s)
      淺野京一, 岩本貢, 渡邉洋平
    • Journal Title

      暗号とセキュリティシンポジウム 2021 (SCIS2021)論文集

      Volume: -

    • NAID

      170000185983

    • Related Report
      2020 Annual Research Report
  • [Journal Article] On the Power of Interaction in Signcryption2020

    • Author(s)
      Junichi Ida, Junji Shikata, Yohei Watanabe
    • Journal Title

      2020 International Symposium on Information Theory and Its Applications (ISITA), IEEE

      Volume: - Pages: 348-352

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 効率的な格子問題に基づくSemi-Adaptive安全な内積暗号2020

    • Author(s)
      宮澤智輝, 佐藤慎悟, 四方順司
    • Journal Title

      情報処理学会 コンピュータセキュリティシンポジウム2020論文集

      Volume: - Pages: 310-315

    • NAID

      170000184052

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 事前通信モデルにおけるペアリングを用いない集約署名2020

    • Author(s)
      竹牟禮薫, 坂井祐介, Bagus Santoso, 花岡悟一郎, 太田和夫
    • Journal Title

      2020年暗号と情報セキュリティシンポジウム (SCIS2020) 論文集

      Volume: -

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 任意の始集合を持つ関数を計算するprivate PEZプロトコル2020

    • Author(s)
      安部芳紀, 岩本貢, 太田和夫
    • Journal Title

      2020年暗号と情報セキュリティシンポジウム (SCIS2020) 論文集

      Volume: -

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Multi-Party Computation for Modular Exponentiation Based on Replicated Secret Sharing2019

    • Author(s)
      K. Ohara, Y. Watanabe, M. Iwamoto, and K. Ohta
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E102.A Issue: 9 Pages: 1079-1090

    • DOI

      10.1587/transfun.E102.A.1079

    • NAID

      130007699566

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2019-09-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Shortening the Libert-Peters-Yung Revocable Group Signature Scheme by Using the Random Oracle Methodology2019

    • Author(s)
      K. Ohara, K. Emura, G. Hanaoka, A. Ishida, K. Ohta, and Y. Sakai
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E102.A Issue: 9 Pages: 1101-1117

    • DOI

      10.1587/transfun.E102.A.1101

    • NAID

      130007699571

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2019-09-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identity-based Encryption with Hierarchical Key-insulation in the Standard Model2019

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

      Designs, Codes and Cryptography

      Volume: 87-5 Issue: 5 Pages: 1005-1033

    • DOI

      10.1007/s10623-018-0503-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SO-CCA Secure PKE in the Quantum Random Oracle Model or the Quantum Ideal Cipher Model2019

    • Author(s)
      Sato Shingo、Shikata Junji
    • Journal Title

      Proc. Cryptography and Coding (IMACC 2019)

      Volume: LNCS11929 Pages: 317-341

    • DOI

      10.1007/978-3-030-35199-1_16

    • ISBN
      9783030351984, 9783030351991
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient Private PEZ Protocols for Symmetric Functions2019

    • Author(s)
      Y. Abe, M. Iwamoto, and K. Ohta
    • Journal Title

      Proc. Theory of Cryptography Conference (TCC2019)

      Volume: LNCS11891 Pages: 372-392

    • DOI

      10.1007/978-3-030-36030-6_15

    • ISBN
      9783030360290, 9783030360306
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optimal Multiple Assignment Schemes Using Ideal Multipartite Secret Sharing Schemes2019

    • Author(s)
      Reo Eriguchi, Noboru Kunihiro, and Mitsugu Iwamoto
    • Journal Title

      Proc. IEEE International Symposium on Information Theory (ISIT2019)

      Volume: 2019-July Pages: 3047-3051

    • DOI

      10.1109/isit.2019.8849591

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 格子問題に基づくSemi-Adaptive安全な内積暗号2019

    • Author(s)
      宮澤智輝, 佐藤慎悟, 四方順司
    • Journal Title

      情報処理学会, 研究報告コンピュータセキュリティ(CSEC)

      Volume: 2019-CSEC-87, no.1 Pages: 1-8

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 任意の関数を計算するprivate PEZプロトコルの改善2019

    • Author(s)
      安部芳紀, 岩本貢, 太田和夫
    • Journal Title

      2019年コンピューターセキュリティシンポジウム (CSS2019)論文集

      Volume: -

    • Related Report
      2019 Annual Research Report
  • [Journal Article] (強)フォワード安全な動的検索可能暗号の効率的な構成2019

    • Author(s)
      渡邉洋平, 大原一真, 岩本貢, 太田和夫
    • Journal Title

      2019年コンピューターセキュリティシンポジウム (CSS2019)論文集

      Volume: -

    • NAID

      170000181140

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Implementation and Analysis of Fully Homomorphic Encryption in Resource-Constrained Devices2019

    • Author(s)
      Prasitsupparote Amonrat, Watanabe Yohei, Sakamoto Junichi, Shikata Junji, Matsumoto Tsutomu
    • Journal Title

      International Journal of Digital Information and Wireless Communications (IJDIWC)

      Volume: 8 (4) Pages: 288-303

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] エントロピーロスの小さいロバストファジー抽出器の構成に関する一考察2019

    • Author(s)
      山田憲一, 四方順司
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 非一様ランダム鍵を用いた情報理論的に安全な信頼性の低い調停者付き認証符号について2019

    • Author(s)
      小林大輝, 四方順司
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 探索問題の困難性に基づく効率的なしきい値公開鍵暗号の構成2019

    • Author(s)
      海老名将宏, 渡邉洋平, 四方順司
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] KEM/DEMフレームワークを利用したフォワード安全公開鍵暗号と匿名放送型暗号の構成2019

    • Author(s)
      打越忠宏, 四方順司
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 初期文字列が29 文字の4入力多数決Private PEZプロトコル2019

    • Author(s)
      安部 芳紀, 山本 翔太, 岩本 貢, 太田 和夫
    • Journal Title

      電子情報通信学会信学技報

      Volume: 118 (478) Pages: 223-228

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 効率的でフォワード安全な動的検索可能暗号2019

    • Author(s)
      渡邉洋平, 岩本貢, 太田 和夫
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 不正検知可能な3入力多数決カードプロトコル2019

    • Author(s)
      安部 芳紀, 山本 翔太, 岩本 貢, 太田 和夫
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 4入力多数決を計算する効率的なPrivate PEZプロトコル2019

    • Author(s)
      山本 翔太, 安部 芳紀, 岩本 貢, 太田 和夫
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 共通鍵型マルチユーザ検索可能暗号の検索機能拡張2019

    • Author(s)
      平野 貴人, 川合 豊, 小関 義博, 岩本 貢, 太田 和夫
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Three-Party Private Set Operation Protocols Using Polynomials and OPPRF2019

    • Author(s)
      Wang Wenjia, Abe Yoshiki, Iwamoto Mitsugu, Ohta Kazuo
    • Journal Title

      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Lattice-Based Signcryption Without Random Oracles2018

    • Author(s)
      Sato Shingo、Shikata Junji
    • Journal Title

      Proceedings of International Conference on Post-Quantum Cryptography, PQCrypto 2018: Post-Quantum Cryptography, Springer

      Volume: LNCS 10786 Pages: 331-351

    • DOI

      10.1007/978-3-319-79063-3_16

    • ISBN
      9783319790626, 9783319790633
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lower Bounds on Lattice Enumeration with?Extreme Pruning2018

    • Author(s)
      Aono Yoshinori、Nguyen Phong Q.、Seito Takenobu、Shikata Junji
    • Journal Title

      Springer Lecture Notes in Computer Science

      Volume: 10992 Pages: 608-637

    • DOI

      10.1007/978-3-319-96881-0_21

    • ISBN
      9783319968803, 9783319968810
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Numerical and Non-Asymptotic Analysis of Elias's and Peres's Extractors with Finite Input Sequences2018

    • Author(s)
      Amonrat Prasitsupparote, Norio Konno, and Junji Shikata
    • Journal Title

      Entropy

      Volume: 20 (10) Issue: 10 Pages: 729-729

    • DOI

      10.3390/e20100729

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Signcryption with Quantum Random Oracles2018

    • Author(s)
      Sato Shingo、Shikata Junji
    • Journal Title

      Proc. of The 12th International Conference on Provable Security (ProvSec 2018), Springer

      Volume: LNCS 11192 Pages: 406-414

    • DOI

      10.1007/978-3-030-01446-9_24

    • ISBN
      9783030014452, 9783030014469
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Implementation and Analysis of Fully Homomorphic Encryption in Wearable Devices2018

    • Author(s)
      Prasitsupparote Amonrat, Watanabe Yohei, Shikata Junji
    • Journal Title

      Proc. of The Fourth International Conference on Information Security and Digital Forensics (ISDF 2018), The Society of Digital Information and Wireless Communications

      Volume: - Pages: 1-14

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Card-Based Majority Voting Protocols with Three Inputs Using Three Cards2018

    • Author(s)
      Yohei Watanabe, Yoshihisa Kuroki, Shinnosuke Suzuki, Yuta Koga, Mitsugu Iwamoto, Kazuo Ohta
    • Journal Title

      Proc. International Symposium on Information Theory and Its Applications (ISITA2018)

      Volume: - Pages: 218-222

    • DOI

      10.23919/isita.2018.8664324

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Proactive Secret Image Sharing Scheme with Resistance to Machine Learning Based Steganalysis2018

    • Author(s)
      Anjelina Espejel-Trujillo, Mitsugu Iwamoto, and Mariko Nakano-Miyatake
    • Journal Title

      Multimedia Tools And Applications

      Volume: 77 Issue: 12 Pages: 15161-15179

    • DOI

      10.1007/s11042-017-5097-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] CBDH仮定に基づく効率的な閾値公開鍵暗号2018

    • Author(s)
      海老名将宏, 渡邉洋平, 四方順司
    • Journal Title

      第21回コンピュータセキュリティシンポジウム(CSS2018)論文集

      Volume: -

    • NAID

      170000178615

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 相関のある情報を用いたMultiple Access Wiretap Channelにおける秘匿通信について2018

    • Author(s)
      小川善功, 田中亮大, 四方順司
    • Journal Title

      第21回コンピュータセキュリティシンポジウム(CSS2018)論文集

      Volume: -

    • NAID

      170000178603

    • Related Report
      2018 Annual Research Report
  • [Journal Article] いくつかの理想的な秘密分散法を用いた最適な複数割り当て法2018

    • Author(s)
      江利口礼央, 國廣昇, 岩本貢
    • Journal Title

      第41回情報理論とその応用シンポジウム論文集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 現実的な結託者のもとで最もシェア長の短いロバスト秘密分散法2018

    • Author(s)
      渡邉洋平, 大原一真, 岩本貢, 太田和夫
    • Journal Title

      電子情報通信学会信学技報

      Volume: 118 (151) Pages: 1-8

    • Related Report
      2018 Annual Research Report
  • [Presentation] 情報銀行のセキュリティに関する一考察2022

    • Author(s)
      清藤武暢, 四方順司
    • Organizer
      情報処理学会CSEC/DPS合同研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 一様で閉じたシャッフルの効率的な実装2022

    • Author(s)
      岩成慶太, 中井雄士, 渡邉洋平, 栃窪孝也, 岩本貢
    • Organizer
      暗号とセキュリティシンポジウム 2022 (SCIS2022)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 効率的な漏洩耐性鍵隔離暗号2022

    • Author(s)
      淺野京一, 岩本貢, 渡邉洋平
    • Organizer
      暗号とセキュリティシンポジウム 2022 (SCIS2022)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 出力埋め込み可能な紛失擬似ランダム関数に基づく多者間秘匿積集合プロトコルの効率化2022

    • Author(s)
      清水聖也, 中井雄士, 渡邉洋平, 岩本貢
    • Organizer
      暗号とセキュリティシンポジウム 2022 (SCIS2022)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 情報理論的に安全な完全準同型暗号に関する考察2021

    • Author(s)
      佐藤慎悟, 四方順司
    • Organizer
      情報処理学会CSEC/DPS合同研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] カードを用いた秘匿共通集合プロトコル2021

    • Author(s)
      土井アナスタシヤ, 中井雄士, 品川和雅, 渡邉洋平, 岩本貢
    • Organizer
      暗号とセキュリティシンポジウム 2021 (SCIS2021)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 秘密鍵の漏洩耐性を有する鍵隔離暗号2021

    • Author(s)
      淺野京一, 岩本貢, 渡邉洋平
    • Organizer
      暗号とセキュリティシンポジウム 2021 (SCIS2021)
    • Related Report
      2020 Annual Research Report
  • [Presentation] On the Power of Interaction in Signcryption2020

    • Author(s)
      Junichi Ida, Junji Shikata, Yohei Watanabe
    • Organizer
      2020 International Symposium on Information Theory and Its Applications (ISITA)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 効率的な格子問題に基づくSemi-Adaptive安全な内積暗号2020

    • Author(s)
      宮澤智輝, 佐藤慎悟, 四方順司
    • Organizer
      情報処理学会 コンピュータセキュリティシンポジウム2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] 事前通信モデルにおけるペアリングを用いない集約署名2020

    • Author(s)
      竹牟禮薫, 坂井祐介, Bagus Santoso, 花岡悟一郎, 太田和夫
    • Organizer
      2020年暗号と情報セキュリティシンポジウム (SCIS2020)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 任意の始集合を持つ関数を計算するprivate PEZプロトコル2020

    • Author(s)
      安部芳紀, 岩本貢, 太田和夫
    • Organizer
      2020年暗号と情報セキュリティシンポジウム (SCIS2020)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Efficient Threshold Public-Key Encryption from CBDH2019

    • Author(s)
      M. Ebina, Y. Watanabe, J. Shikata
    • Organizer
      14th International Workshop on Security (IWSEC2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Strong Forward Privacy for Dynamic Searchable Encryption2019

    • Author(s)
      K. Ohta
    • Organizer
      Seminar at Google; Searchable Encryption Talk
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Card-based Majority Voting Protocols with Three Inputs Using Three Cards2019

    • Author(s)
      K. Ohta
    • Organizer
      The International Secure Multi-party Computation Forum
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] SO-CCA secure PKE in the Quantum Random Oracle Model or the Quantum Ideal Cipher Model2019

    • Author(s)
      S. Sato, J. Shikata
    • Organizer
      17th IMA International Conference on Cryptography and Coding
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How to improve the private PEZ protocol for general functions2019

    • Author(s)
      Y. Abe, M. Iwamoto, K. Ohta
    • Organizer
      14th International Workshop on Security (IWSEC2019), poster session
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 任意の関数を計算するprivate PEZプロトコルの改善2019

    • Author(s)
      安部芳紀, 岩本貢, 太田和夫
    • Organizer
      2019年コンピューターセキュリティシンポジウム (CSS2019)
    • Related Report
      2019 Annual Research Report
  • [Presentation] (強)フォワード安全な動的検索可能暗号の効率的な構成2019

    • Author(s)
      渡邉洋平, 大原一真, 岩本貢, 太田和夫
    • Organizer
      2019年コンピューターセキュリティシンポジウム (CSS2019)
    • Related Report
      2019 Annual Research Report
  • [Presentation] エントロピーロスの小さいロバストファジー抽出器の構成に関する一考察2019

    • Author(s)
      山田憲一
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 非一様ランダム鍵を用いた情報理論的に安全な信頼性の低い調停者付き認証符号について2019

    • Author(s)
      小林大輝
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 探索問題の困難性に基づく効率的なしきい値公開鍵暗号の構成2019

    • Author(s)
      海老名将宏
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] KEM/DEMフレームワークを利用したフォワード安全公開鍵暗号と匿名放送型暗号の構成2019

    • Author(s)
      打越忠宏
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 現代暗号研究の事始め ~ 1つのケーススタディ ~2019

    • Author(s)
      太田和夫
    • Organizer
      電子情報通信学会 情報理論・情報セキュリティ・ワイドバンドシステム合同研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 初期文字列が29 文字の4 入力多数決Private PEZプロトコル2019

    • Author(s)
      安部 芳紀
    • Organizer
      電子情報通信学会 情報理論・情報セキュリティ・ワイドバンドシステム合同研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 効率的でフォワード安全な動的検索可能暗号2019

    • Author(s)
      渡邉洋平
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 不正検知可能な3入力多数決カードプロトコル2019

    • Author(s)
      安部芳紀
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 4入力多数決を計算する効率的なPrivate PEZプロトコル2019

    • Author(s)
      山本翔太
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Three-Party Private Set Operation Protocols Using Polynomials and OPPRF2019

    • Author(s)
      Wang Wenjia
    • Organizer
      2019年暗号と情報セキュリティシンポジウム (SCIS 2019)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Toward Lightweight Authentication: Application of Aggregate MACs for IoT2018

    • Author(s)
      Shikata Junji
    • Organizer
      The 4th French-Japanese Cybersecurity Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lattice-based Signcryption without Random Oracles2018

    • Author(s)
      Sato Shingo
    • Organizer
      International Conference on Post-Quantum Cryptography (PQCrypto 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Signcryption with Quantum Random Oracles2018

    • Author(s)
      Sato Shingo
    • Organizer
      The 12th International Conference on Provable Security (ProvSec 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Implementation and Analysis of Fully Homomorphic Encryption in Wearable Devices2018

    • Author(s)
      Prasitsupparote Amonrat
    • Organizer
      The Fourth International Conference on Information Security and Digital Forensics (ISDF 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CBDH仮定に基づく効率的な閾値公開鍵暗号2018

    • Author(s)
      海老名将宏
    • Organizer
      第21回コンピュータセキュリティシンポジウム(CSS2018)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 相関のある情報を用いたMultiple Access Wiretap Channelにおける秘匿通信について2018

    • Author(s)
      小川善功
    • Organizer
      第21回コンピュータセキュリティシンポジウム(CSS2018)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 秘密計算の安全性~プライバシーを保ちつつどこまで計算できるか2018

    • Author(s)
      岩本貢
    • Organizer
      第8回バイオメトリクスと認識・認証シンポジウム(SBRA)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 現実的な結託者のもとで最もシェア長の短いロバスト秘密分散法2018

    • Author(s)
      渡邉洋平
    • Organizer
      電子情報通信学会情報セキュリティ研究会
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2023-01-30  

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