【2016 Workshop】Dec 19-21

Mathematical methods and practice in cryptography, security and big data

December 19 – 21, 2016
Lecture Room 4-501, Bldg.#4, Faculty of Science, Hokkaido University

Organized by:
Koji NUIDA (AIST / JST-PRESTO)
Toru OHMOTO (Hokkaido University)
Michele TORIELLI (Hokkaido University)

Supported by:
The Institute of Statistical Mathematics
Research Center of Mathematics for Social Creativity, RIES, Hokkaido University
Global Station for Big Data and Cybersecurity , Hokkaido University
National Institute of Advanced Industrial Science and Technology

Sponsored by:
Institute of Statistical Mathematics
Grant No. 2016W13

Overview

A workshop titled “Mathematical methods and practice in cryptography, security and big data” was held from December 19 to December 21, 2016 at Hokkaido University to explore mathematical methods for information security with the aim of promoting interdisciplinary collaboration between mathematicians and those researchers who work in the areas of data science and cybersecurity.Keywords:
Cybersecurity, Big Data, Algebraic Geometry, Combinatorics, Dynamical Systems, Quantum Computing

Invited Speakers

Koji NUIDA
Information Technology Research Institute
AIST
Kana SHIMIZU
Waseda University
Yuji SUGA
Internet Initiative Japan Inc.
Kouichiro AKIYAMA
Research Center
TOSHIBA Co.
Masanao YAMAOKA
Research Institute for for Electronic Science
Hokkaido University
Zin ARAI
Department of Mathematics
Hokkaido University
Hirohito SASAKAWA
Recruit Technologies Co., Ltd.
Shuhei TSUJIE
Department of Mathematics
Hokkaido University
Masamichi KURODA
Department of Mathematics
Hokkaido University
Katsuyuki TAKASHIMA
Research Center
MITSUBISHI Elect. Co.
Hiroo TOKUNAGA
Tokyo Metropolitan University
Relinde JURRIUS
University Neuchâtel
Switzerland
Shizuo KAJI
Yamaguchi University
Toshiaki MAENO
Meijo University
Yasuhide NUMATA
Shinshu University

Program

December 19, 2017
Science 4-501, Hokkaido University

9:50 – 10:00
Toru Ohmoto (Hokkaido University), Koji Nuida (AIST / JST-PRESTO)
Opening Remarks
10:00 – 10:50
Koji Nuida (AIST / JST-PRESTO)
Cryptography, Information Security, and Mathematics: Recent Advances
11:00 – 11:50
Kana Shimizu (Waseda University)
Privacy-preserving search for biological data using homomorphic encryption
11:50 – 14:00
Lunch
14:00 – 14:50
Yuji Suga (Internet Initiative Japan Inc.)
Secret Sharing Schemes Suitable for Remote Operations of Cloud Storage Services
15:10 – 16:00
Kouichiro Akiyama (Research Center, TOSHIBA Co.)
A Homomorphic Encryption Scheme based on the Smallest Solution Problem of Indeterminate Equations
16:10 – 17:00
Masanao Yamaoka (MSC, RIES, Hokkaido University / HITACHI Co.)
New-paradigm Ising computing for combinatorial optimization problems
18:00 – 20:00
Banquet at Suntory’s Garden-SORA

December 20, 2017
Science 4-501, Hokkaido University

10:00 – 10:50
Zin Arai (Hokkaido University)
On topological tools for network analysis
11:00 – 11:50
Hirohito Sasakawa (Recruit Technologies Co., Ltd. / Hokkaido University)
Oblivious Evaluation of Non-deterministic Finite Automata with Application to Privacy-Preserving Regular Expression Search
(joint work with H. Harada, D. duVerle, H. Arimura, K. Tsuda, J. Sakuma)
12:05 – 12:30
Shuhei Tsujie, Masamichi Kuroda (Hokkaido University)
A generalization of almost perfect nonlinear functions
12:30 – 14:00
Lunch
14:00 – 14:50
Katsuyuki Takashima (Research Center, MITSUBISHI Elect. Co.)
Lattice and Isogeny Algorithms and Their Applications to Post-Quantum Cryptography
15:10 – 16:00
Hiroo Tokunaga (Tokyo Metropolitan University)
A remark on Vanishing Component Analysis via (Hyper)graphs
16:10 – 17:00
Relinde Jurrius (University of Neuchatel, Switzerland)
An introduction to error-correcting codes and some current-day applications

December 21, 2017
Science 4-501, Hokkaido University

9:30 – 10:20
Shizuo Kaji (Yamaguchi University / JST-PRESTO)
Polar decomposition of square matrices
10:30 – 11:20
Toshiaki Maeno (Meijo University)
Polynomial expressions of auction functions
11:20 – 12:40
Lunch
12:40 – 13:30
Relinde Jurrius (University of Neuchatel, Switzerland)
Application of hyperplane arrangements to error-correcting codes
13:40 – 14:30
Yasuhide Numata (Shinshu University)
Application of computational algebra to mathematical statistics

Number of Participants

34 researchers/students (29 from academia, 5 from industries)

Acronyms

AIST:
National Institute of Advanced Industrial Science and Technology
JST:
Japan Science and Technology Agency
RIES:
Research Institute for for Electronic Science
MSC:
Research Center of Mathematics for Social Creativity
GI-CoRE:
Global Institution for Collaborative Research and Education
GSB:
Global Station for Big Data and Cybersecurity