Kyushu University Academic Staff Educational and Research Activities Database
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Kouichi Sakurai Last modified date:2017.06.02



Graduate School
Undergraduate School
Other Organization


E-Mail
Homepage
http://itslab.csce.kyushu-u.ac.jp/
Fax
092-802-3600
Academic Degree
PhD
Field of Specialization
Cryptography and Information Security
Outline Activities
Kouichi Sakurai received the B.S. degree in mathematics from the Faculty of Science, Kyushu University in 1986. He received the M.S. degree in applied science in 1988, and the Doctorate in engineering in 1993 from the Faculty of Engineering, Kyushu University. He was engaged in research and development on cryptography and information security at the Computer and Information Systems Laboratory at Mitsubishi Electric Corporation from 1988 to 1994. From 1994, he worked for the Dept. of Computer Science of Kyushu University in the capacity of associate professor, and became a full professor there in 2002. He is concurrently working also with the Institute of Systems & Information Technologies and Nanotechnologies, as the chief of Information Security laboratory, for promoting research co-oporations among the industry, university and government under the theme "Enhancing IT-security in social systems". He has been successful in generating such co-operation between Japan, China and Korea for security technologies as the leader of a Cooperative International Research Project supported by the National Institute of Information and Communications Technology (NICT) during 2005-2006. Moreover, in March 2006, he established research co-oporations under a Memorandum of Understanding in the field of information security with Professor Bimal Kumar Roy, the first time Japan has partnered with The Cryptology Research Society of India (CRSI). Professor Sakurai has published more than 250 academic papers around cryptography and information security (See:http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/s/Sakurai:Kouichi.html)
Research
Research Interests
  • Cyber Security
    keyword : Network, AI
    2015.04~2016.05.
  • Design and Analysis of Cryptographic Algorithms
    keyword : common-key cryptosyetms, security evaluation
    2005.04~2012.10.
  • Network Security Economics
    keyword : Game Theory
    2010.08~2011.08.
  • Cryptography and Informatin Security
    keyword : Information Security, Cryptography, Internet Protocol, Mobile Technology, Web Application, Operating System
    1994.03.
Current and Past Project
  • Based on the Memorandum of Understanding concluded between Japan Science and Technology Agency ("JST") and Department of Science and Technology (“DST”) of the Government of India on DEC.8.2006, JST and DST have initiated a programme for joint funding of Japanese -Indian cooperative research projects in the area of “Multidisciplinary Research Field, which combines Information and Communications Technology with Other Fields” (“Multidisciplinary ICT”). The funding will be mainly allocated to enhance bilateral research collaboration with a special emphasis on enhancing exchange visits or joint meetings of scientists of both countries. Successful projects will be funded for a period of three years. "Analysis of Cryptographic Algorithms and Evaluation on Enhancing Network Security Based on Mathematical Science" as one of this joint-projects is led by Prof. SAKURAI of Japanese-side and Prof. ROY of Indian-side started from 2008 . Our project has gained research fund from Japan Science and Technology Agency and Department of Science and Technology of the Government of India.
Academic Activities
Papers
1. Tomohisa ISHIKAWA, Kouichi Sakurai, A proposal of event study methodology with Twitter sentimental analysis for risk management., Proceedings of the 11th International Conference on Ubiquitous Information Management and Communication, IMCOM 2017, Beppu, Japan, January 5-7, 2017. ACM 2017, , 2017.01, [URL].
2. Takanori SSUGA, Takashi NISHIDE, Kouichi Sakurai, Character-based symmetric searchable encryption and its implementation and experiment on mobile devices. , Security and Communication Networks , 9, (12), 2016.08, [URL].
3. Chunlu Chen, Hiroaki ANADA, Junpei Kawamoto, Kouichi Sakurai, A Hybrid Encryption Scheme with Key-cloning Protection: User / Terminal Double Authentication via Attributes and Fingerprints, Journal of Internet Services and Information Security, Volume 6, 2016.05.
4. Sushimita Ruj, Kouichi Sakurai, Secure and Privacy Preserving Hierarchical Wireless Sensor Networks using Hybrid Key Management Technique, 2013 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), 402-407, 2013.12.
5. Yuto Nakano, Kazuhide Fukushima, Shinsaku Kiyomoto, Tsukasa Ishiguro, Yutaka Miyake,, Toshiaki Tanaka, Kouichi Sakurai, Fast Implementation of KCipher-2 for Software and Hardware, IEICE Trans., 97, D(1), 2014.01.
6. Angsuman Das, Avisheck Adhikari, Kouichi Sakurai, PLAINTEXT CHECKABLE ENCRYPTION WITH DESIGNATED CHECKER, ADVANCES IN MATHEMATICS OF COMMUNICATIONS, 9, 1, 37-53, 2015.02.
7. Shinsaku Kiyomoto, Toshiaki Tanaka, Kouichi Sakurai:, K2: A Stream Cipher Algorithm using Dynamic Feedback Control., SECRYPT 2007, 204-213, 2007.07.
Presentations
1. , [URL].
2. Kouichi Sakurai, Anti-forensic Aspects in Biometric Authentication Protocols:
Receipt-freeness, Coercion-Resistance, and Undeniability, UAE Cyber Security Workshop, 2016.04.03, [URL].
3. Kouichi Sakurai, New infrastructure and applications developed from a cryptocurrency BITCOIN and a platform ETHEREUM, ICoICT 2015 (The 3rd International Conference of Information and Communication Technology), 2015.05.27, [URL].
Other Research Activities
  • 2013.03, Theory and Applications of Cryptographic Algorithms and Protocols.
  • 2013.03, Strategic Japanese-Indian Cooperative Programme on Multidisciplinary Research Field, which combines Information and Communications Technology with Other Fields.
Membership in Academic Society
  • Japanese Society for Artificial Intelligence
  • Japan Society for Industrial and Applied Mathematic
Awards
  • Implementation and Evaluation of Host Independent Network Detection System on OpenFlow Controller
    RYOSUKE MIYAZAKI1,2 JUNPEI KAWAMOTO1,2 SHINICHI MATSUMOTO1,2 KOICHI SAKURAI1,2
    1 Kyushu University
    2 Institute of Systems, Information Technologies and Nanotechnologies (ISIT)
  • “Parallelization of QUAD Stream Cipher using Linear Recurring Sequences on Graphics Processing Units” Satoshi Tanaka, Chen-Mou Cheng, Takanori Yasuda and Kouichi Sakurai