SHIKATA Junji

Affiliation

Faculty of Environment and Information Sciences, Division of Social Environment and Information

Job Title

Professor

Research Fields, Keywords

Cryptography, Information Security, Information Theory, Computational Number Theory, Theoretical Computer Science

Mail Address

E-mail address



The Best Research Achievement in Research Career 【 display / non-display

  • 【Published Thesis】 Security Formalizations and Their Relationships for Encryption and Key Agreement in Information Theoretic Cryptography  2018.01

    【Published Thesis】 Lower Bounds on Lattice Enumeration with Extreme Pruning  2018.08

    【Published Thesis】 Security Notions for Unconditionally Secure Signature Schemes  2002

The Best Research Achievement in the last 5 years 【 display / non-display

  • 【Published Thesis】 M. Iwamoto, K. Ohta, and J. Shikata, "Security Formalizations and Their Relationships for Encryption and Key Agreement in Information Theoretic Cryptography", IEEE Transactions on Information Theory, Vol. 64, No. 1, pp. 654-685, January 2018  2018.01

    【Published Thesis】 Yoshinori Aono, Phong Q. Nguyen, Takenobu Seito, and Junji Shikata, "Lower Bounds on Lattice Enumeration with Extreme Pruning", Advances in Cryptology - CRYPTO 2018, LNCS 10992, pp. 608-637, Springer, August 2018  2018.08

    【Published Thesis】 Singo Sato and Junji Shikata, "Lattice-based Signcryption without Random Oracles", Proceedings of International Conference on Post-Quantum Cryptography, PQCrypto 2018: Post-Quantum Cryptography, Fort Lauderdale, FL, USA, April 9-11, 2018. LNCS 10786, pp.331-351, Springer, April 2018  2018.04

    【Published Thesis】 Y. Watanabe and J. Shikata, "Timed-Release Computational Secret Sharing Scheme and Threshold Encryption", Designs, Codes and Cryptography, Volume 86, Number 1, pp. 17-54, January 2018  2018.01

    【Published Thesis】 Junji Shikata, Yohei Watanabe, "Identity-based Encryption with Hierarchical Key-insulation in the Standard Model", Designs, Codes and Cryptography, Volume 87, Issue 5, pp. 1005-1033, Springer, May 2019  2019.05

Graduating School 【 display / non-display

  •  
    -
    1994

    Kyoto University   Faculty of Science   Graduated

Graduate School 【 display / non-display

  •  
    -
    2000

    Osaka University  Graduate School, Division of Natural Science  Doctor Course  Completed

  •  
    -
    1997

    Kyoto University  Graduate School, Division of Natural Science  Master Course  Completed

Degree 【 display / non-display

  • Doctor of Science -  Osaka University

Campus Career 【 display / non-display

  • 2016.04
    -
    Now

    Duty   Yokohama National UniversityFaculty of Environment and Information Sciences   Division of Social Environment and Information   Professor  

  • 2007.04
    -
    2016.03

    Duty   Yokohama National UniversityFaculty of Environment and Information Sciences   Division of Social Environment and Information   Associate Professor  

  • 2005.04
    -
    2007.03

    Duty   Yokohama National UniversityResearch Institute of Environment and Information Sciences   Division of Social Environment and Information   Associate Professor  

  • 2002.04
    -
    2005.03

    Duty   Yokohama National UniversityResearch Institute of Environment and Information Sciences   Division of Social Environment and Information   Lecturer  

  • 2021.04
    -
    Now

    Concurrently   Yokohama National UniversityFaculty of Environment and Information Sciences   Dean  

display all >>

External Career 【 display / non-display

  • 2000.04
    -
    2002.03

    University of Tokyo   Institute of Industrial Science   Researcher  

  • 2008.03
    -
    2009.02

    Swiss Federal Institute of Technology (ETH)   Department of Computer Science   Visiting Researcher  

Academic Society Affiliations 【 display / non-display

  •  
     
     
     

    IEEE

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Cryptology

  • Cryptology

  • Foundations of mathematics/Applied mathematics

 

Research Career 【 display / non-display

  • Public-key Cryptography

    Project Year:  -   

  • Information-Theoretic Cryptography

    Grant-in-Aid for Scientific Research  

    Project Year:  -   

  • Analysis of Mathematical Algorithms

    Project Year:  -   

Papers 【 display / non-display

  • Efficient Threshold Public Key Encryption from the Computational Bilinear Diffie-Hellman Assumption

    Masahiro Ebina, Jumpei Mita, Junji Shikata, Yohei Watanabe

    The 8th ACM ASIA Public-Key Cryptography Workshop (APKC 2021) ( ACM )    2021.06  [Refereed]

    Joint Work

  • Anonymous Broadcast Authentication for Securely Remote-Controlling IoT Devices

    Yohei Watanabe, Naoto Yanai, Junji Shikata

    Advanced Information Networking and Applications (AINA 2021) ( Springer )  LNNS 226   2021.05  [Refereed]

    Joint Work

    DOI

  • Modeling of Malware Propagation in IoT Network and Mitigation in Area based on Local Routing Depth

    Rodrigo Matos Carnier, Yue Li, Junji Shikata, Yasutaka Fujimoto

    IEEJ International Workshop on Sensing, Actuation, Motion Control, and Optimization (SAMCON) ( The Institute of Electrical Engineers of Japan (IEEJ) )    336 - 341   2021.03  [Refereed]

    Joint Work

  • Performance Evaluation of Secure Communication based on OFDM and DFT-Precoded OFDM over Fading Channel

      120 ( 412 )   104 - 109   2021.03

    Joint Work

  • Remark on Fully Homomorphic Encryption with Information Theoretic Security

      2021-DPS-186 ( 69 )   1 - 6   2021.03

    Joint Work

display all >>

Review Papers 【 display / non-display

  • Trends and Development of Information-Theoretic Cryptography

    Junji Shikata

    IEICE Trans. Fundamentals. ( IEICE )  E98-A ( 1 ) 16 - 25   2015.01  [Refereed]  [Invited]

    Introduction and explanation (scientific journal)   Single Work

Academic Awards Received 【 display / non-display

  • The 9th International Workshop on Securty (IWSEC2014), The Best Poster Award

    2014.08   The 9th International Workshop on Securty (IWSEC2014)  

  • The Young Scientists' Prize, the Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology

    2010.04    

  • The Wilkes Award 2006

    2007.05   The British Computer Society  

  • TELECOM System Technology Award from The Telecommunications Advancement Foundation

    2004.03    

Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2021.04  -  2025.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2018.04  -  2021.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2017.04  -  2021.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2015.04  -  2018.03 

Presentations 【 display / non-display

  • Information-Theoretic Cryptography: Survey and Challenge

    J. Shikata  [Invited]

    JSPS-DST Asian Academic Seminar 2013  2013.11.03   Discrete Mathematics and its Applications, Graduate School of Mathematical Sciences, the University of Tokyo