About Me

  • I’m a researcher of NTT Secure Platform Laboratories, NTT Corporation, Japan.
  • 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

Please check the page for publication list in detail.


  • 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.


  • Editorial board member of IACR Transaction 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.


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