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About Me

  • I’m a researcher of NTT Secure Platform Laboratories, NTT Corporation, Japan from 2012.
  • I received my Ph.D from Kobe University in March 2017 (supervisor : Masakatu Morii).
  • The title of my Ph.D Thesis is “Integral Cryptanalysis against Symmetric-Key Cryptosystems.”
  • My research area is cryptography. Especially, the design and analysis of the symmetric-key cryptography.
  • Link : [dblp] [google scholar]

Recent Major Activity

  • Our paper entitled “Programming the Demirci-Selcuk Meet-in-the-Middle Attack with Constraints” was accepted at ASIACRYPT 2018.
  • Our paper entitled “Cryptanalysis of AES-PRF and Its Dual” was accepted at ToSC 2018 (FSE 2019).
  • Our paper entitled “Fast Correlation Attack Revisited –Cryptanalysis on Full Grain-128a, Grain-128, and Grain-v1” was accepted at CRYPTO 2018.
  • Our paper entitled “Improved Division Property Based Cube Attacks Exploiting Algebraic Properties of Superpoly” was accepted at CRYPTO 2018.
    You can access the full version in the ePrint.
  • The full version of our paper “Cube Attacks on Non-Blackbox Polynomials Based on Division Property” publised at CRYPTO2017 was accepted at IEEE Trans. on Computers.

Please check the page for publication list in detail.


Awards

  • Jan. 2016, SCIS Best Papers Award, SCIS 2015, IEICE, ISEC.
  • Aug. 2015, CRYPTO 2015 Best Paper Award, IACR.
  • Aug. 2015, CRYPTO 2015 Best Young Researcher Award, IACR.

Committee

  • Program committee member of ASIACRYPT 2018.
  • Editorial board member of IACR Transactions on Symmetric Cryptology (ToSC) 2018
    (Program committee member of FSE2019)
  • Editorial board member of IACR Transactions on Symmetric Cryptology (ToSC) 2017
    (Program committee member of FSE2018)
  • Program committee member of ASIACRYPT 2016.
  • Program committee member of EUROCRYPT 2016.
  • Organizing committee of SCIS 2016.

Design

  • 2017          Gimli, Cross-Platform Cryptographic Permutation
  • 2017          GIFT, Lightweight Block Cipher
  • 2014          Minalpher, Authenticated Encryption with Associated Data
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