Staff Introduction
-
-
原澤 隆一 Ryuichi HARASAWA
- Emailharasawanagasaki-u.ac.jp- Position / Degree Institute of Integrated Science and Technology, Associate Professor
School of Information and Data Sciences, Associate Professor
Graduate school of engineering, Associate Professor
Doctor (Science)- Specialized Field Computational Algebra, Cryptography, Number Theory
CV
| Mar.1997 | B.S. degree in Mathematics, Osaka City University |
| Mar.1999 | M.S. degree in Mathematics, Osaka University |
| Mar.2003 | D.S. degree in Mathematics, Osaka University |
| Apr.2003 | Research Associate, School of Engineering, Nagasaki University |
| Apr.2007 | Assistant Professor, School of Engineering, Nagasaki University |
| Apr.2011 | Assistant Professor, Graduate School of Engineering, Nagasaki University |
| Apr.2018 | Associate Professor, Graduate School of Engineering, Nagasaki University |
| Apr.2020 | Associate Professor, School of Information and Data Sciences, Nagasaki University |
Research Activities
Finite Algebraic Systems and Applications to Cryptography
In the modern information society, the value of information is increasing. Therefore, it is important to handle information safely. For example
-
-
- Communicating information securely
- Guaranteeing the validity of information
- Processing information safely
-
Cryptography is an indispensable technique to realize those topics above. My research topic contains the establishment of theories on finite algebraic systems (finite sets with operations) and their computational theory, and their application to cryptography. For example, number theory (prime factorization, etc.), algebraic geometry (sets of solution of equations, curves, etc.), and lattice theory.
Overview of encrypted communication
Webpage without encrypted communication
Webpage with encrypted communication
Educational Activities
Class
School of Information and Data Sciences：First-year Seminar, Linear Algebra I/II, Basic Mathematics for Information Science,Mathematics for Information Science Ⅲ/Ⅳ, Information Security Ⅲ, Research Project
Graduate School of Engineering：Discrete Mathematics