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General Information

Full Name Sohto Chiku
Date of Birth 6th September, 1999

Education

  • 2024
    Master of Informatics
    Graduate School of EIS, Yokohama National University, Japan
  • 2022
    Bachelor of Engineering
    Multidisciplinary Engineering Course, National Institute of Technology Numazu Colledge, Japan

Academic Services

Journal Reviewer IEEE Transactions on Information Forensics and Security
Conference Reviewer CRYPTO 2025

Talks

  • 2025
    Hierarchical Identity-Based Matchmaking Encryption
    PRIVCRYPT 2025
  • 2024
    How to Accomplish Key and Communication Compression Over Authentication Channels
    NSS 2024
  • 2024
    How to Apply Fujisaki-Okamoto Transformation to Registration-Based Encryption
    CANS 2024
  • 2023
    Identity-Based Matchmaking Encryption Secure Against Key Generation Center
    ProvSec 2023
  • 2023
    Chosen Ciphertext Security for Blind Identity-Based Encryption with Certified Identities
    ISPEC 2023

Posters

  • 2024
    Identity-Based Matchmaking Encryption Revisited: Improved Constructions with Strong Security
    IWSEC 2024

Invited Talks

  • 2024
    Identity-Based Matchmaking Encryption Secure Against Key Generation Center (from ProvSec 2023)
    Invited Session in ISEC (May)

Honors and Awards

  • 2024
    CSS Paper Awards
    Computer Security Symposium 2024
  • 2024
    Tujii Shigeo Security Paper Awards
    Japan Society of Security Management
  • 2024
    Certificate of Appreciation for Contribution to ISEC Research Group Activities
    ISEC Research Group
  • 2024
    Graduate School of EIS Student Awards
    Graduate School of EIS, Yokohama National University

Academic Interests

  • Cryptography
    • Functional Encryption
    • Registration-Based Cryptography
    • Privacy Preserving Signature