Research

1. Cryptography

Research and development of cryptographic technologies that form the foundation of information security essential to modern society.

Elliptic Curve Cryptography (ECC)

• Public key cryptography based on elliptic curve discrete logarithm problem
• Development of fast computation algorithms
• Implementation optimization for embedded systems

Pairing-based Cryptography

• Advanced cryptography using bilinear maps
• Implementation of ID-based and attribute-based encryption
• Development of efficient pairing computation methods
• Search for optimal curve parameters

Homomorphic Encryption

• Cryptographic technology enabling computation on encrypted data
• Privacy protection in cloud computing
• Implementation and evaluation of practical homomorphic encryption

2. Post Quantum Cryptography (PQC)

Research on cryptographic technologies resistant to quantum computer attacks, preparing for the practical implementation of quantum computers.

• Lattice-based Cryptography
• Code-based Cryptography
• Multivariate Cryptography
• Correspondence with NIST standardization process

3. IoT Security

Aiming to realize secure communication and data protection in the IoT era.

• Design and implementation of lightweight cryptography
• Authentication protocols for IoT devices
• Security implementation for embedded systems
• Cryptographic processing optimization under resource constraints
• Security for CAN and MAVLink communications

4. AI Security

Research to ensure the safety and reliability of AI technologies.

• Attacks and defenses for machine learning models
• Privacy-preserving machine learning
• Side-channel attacks using deep learning
• AI-based intrusion detection systems

5. Random Number Generation

Research and development of high-quality random number generators that form the foundation of cryptographic technologies.

• True Random Number Generator (TRNG)
• RNG design using ring oscillators
• Evaluation of Pseudo Random Number Generators (PRNG)
• Statistical evaluation methods for random numbers

6. Hardware Security

Research on security evaluation and countermeasure technologies for cryptographic hardware.

• Side-channel attacks and countermeasures
• Resistance evaluation against Differential Power Analysis (DPA)
• Countermeasures for fault attacks
• Design of secure cryptographic processors

Grants-in-Aid for Scientific Research

• "Proposal of Attack Methods for Security Evaluation of Cryptographic Technologies Using Machine Learning and Deep Learning"
  Grant-in-Aid for Scientific Research (C) (April 2021 - March 2024)
• "Construction of Secure Medical Information Management System Using ICT and Cryptographic Technologies"
  Grant-in-Aid for Challenging Research (Pioneering) (June 2019 - March 2023)
• "Realization of Safe and Reliable Communication in Remote-Controlled and Autonomous Mobile Systems in the IoT Era"
  Grant-in-Aid for Scientific Research (A) (April 2016 - March 2019)
• "Development and Demonstration of Distributed Parallel Attack Method Using Conjugate Rational Point Norm for Elliptic Pairing Cryptography"
  Grant-in-Aid for Scientific Research (B) (April 2013 - March 2016)

Industry-Academia Collaboration Projects

• Development of practical security technologies through joint research with companies
• Research on security technologies for automotive industry
• Security enhancement of medical information systems
• Security implementation for agricultural IoT systems