Rchr
J-GLOBAL ID：201701017653239980   Update date: Apr. 10, 2024

Kikuchi Ryo

Kikuchi Ryo
Affiliation and department：
NTT

About NTT


Research field  (2)： Information theory ,  Information security
Research keywords  (5)： Secure Multiparty Computation ,  Anonymization ,  Cryptography ,  Privacy ,  Security
Papers (32)：
  • Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Daniel Genkin, Yehuda Lindell, Ariel Nof. Fast Large-Scale Honest-Majority MPC for Malicious Adversaries. Journal of Cryptology. 2023. 36. 3. 15-15
  • Atsunori Ichikawa, Ilan Komargodski, Koki Hamada, Ryo Kikuchi, Dai Ikarashi. 3-Party Secure Computation for RAMs: Optimal and Concretely Efficient. TCC (1). 2023. 471-502
  • Gilad Asharov, Koki Hamada, Ryo Kikuchi, Ariel Nof, Benny Pinkas, Junichi Tomida. Secure Statistical Analysis on Multiple Datasets: Join and Group-By. CCS. 2023. 3298-3312
  • Atsunori Ichikawa, Ilan Komargodski, Koki Hamada, Ryo Kikuchi, Dai Ikarashi. 3-Party Secure Computation for RAMs: Optimal and Concretely Efficient. IACR Cryptology ePrint Archive. 2023. 2023. 516-516
  • Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Koji Chida. Efficient decision tree training with new data structure for secure multi-party computation. Proceedings on Privacy Enhancing Technologies. 2023. 2023. 1. 343-364
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MISC (44)：
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Patents (78)：
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Lectures and oral presentations  (12)：
  • Efficient Secure Three-Party Sorting with Applications to Data Analysis and Heavy Hitters
    (WCIS 2023 2023)
  • Fast Large-Scale Honest-Majority MPC for Malicious Adversaries
    (Workshop for construction and application of public-key cryptography 2019)
  • Foundations and practical studies of secure computation
    (ISEC 2017)
  • Secure AES computation comparable to local computation
    (Tokyo Crypto Day 2017)
  • MEVAL2 vs CCS Best paper on MPC-AES
    (IWSEC 2017)
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Education (2)：
  • 2012 - 2015 Tokyo Institute of Technology Communications and Integrated Systems
  • 2004 - 2010 Tokyo Institute of Technology
Professional career (1)：
  • Ph.D (Tokyo Institute of Technology)
Work history (3)：
  • 2013/04 - 現在 ISO/IEC JTC 1/SC 27/WG 2 Expert/National body
  • 2010/04 - 現在 NTT Corporation
  • 2016/04 - 2019/03 National Statistics Center Visiting Researcher
Committee career (2)：
  • 2013/02 - 現在 ISO/IEC SC 27/WG 2 National body
  • 2013/02 - 現在 ISO/IEC SC 27/WG 2 エキスパート
Awards (8)：
  • 2024/03 - 電気通信普及財団 テレコムシステム技術賞 Efficient Secure Three-Party Sorting with Applications to Data Analysis and Heavy Hitters
  • 2021/04 - 第6回「辻井重男セキュリティ論文賞」優秀賞 Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation
  • 2019/07 - The 24th Australasian Conference on Information Security and Privacy (ACISP2019) Best paper award Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation
  • 2019/03 - JSSM 4th Shigeo-Tsujii security award, special award Fast Large-Scale Honest-Majority MPC for Malicious Adversaries
  • 2017/10 - CSEC CSS 2017 best paper award A Design and an Implementation of Super-high-speed Multi-party Sorting: The Day When Multi-party Computation Reaches Scripting Languagesf
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