Deepening and new frontiers in card-based cryptography through industry-academia collaboration and cooperation in the fields of mathematics and cryptography

Reference No.	2024a035
Type/Category	Grant for General Research-Short-term Joint Research
Title of Research Project	Deepening and new frontiers in card-based cryptography through industry-academia collaboration and cooperation in the fields of mathematics and cryptography
Principal Investigator	Yuji Suga（Internet Initiative Japan Inc.・Senior Engineer）
Research Period	May 20,2024. ～ May 23,2024.
Keyword(s) of Research Fields	Card-based cryptography, Secure multi-party computation, Zero-knowledge proofs, Finite groups, Association schemes
Abstract for Research Report	Card-based cryptography is a technology that uses a deck of physical cards to realize cryptographic functions such as secure multi-party computation and zero-knowledge proofs. The last IMI short-term joint research in May 2023 aimed to increase the number of newcomers to our field by publishing a list of unsolved open problems in card-based cryptography. Not only the list of unsolved open problems in the report, but also the lecture videos and lecture materials, which are widely available, can be referred to. As a result, the number of papers on card-based cryptography in Japan and abroad has turned to increase, indicating that the event was very well supported, especially by newcomers Based on this situation, we have concluded that the short-term joint research should be continued on the following two axes. Firstly, the aim is to increase the number of opportunities for young researchers to give presentations by reserving a larger number of invitation slots and sharing new interpretations and insights into their research through dialogue with senior researchers who are familiar with engineering and science (especially Mathematics), to encourage them to take their research to the next level. As a representative, I would like to ensure that the event can also function as a platform for exchange between young researchers and senior researchers. Secondly, the aim is to brush up the list of unsolved open problems by sharing issues that have been solved over the past year in response to the unsolved open problems obtained last year, as well as adding research questions from new perspectives. We believe that these two axes will contribute to an increase in the number of new researchers joining the project as well as an increase in the number of research areas.
Organizing Committee Members (Workshop) Participants (Short-term Joint Usage)	Takaaki Mizuki（Tohoku University・Professor） Koji Nuida（Kyushu University・Professor） Kazumasa Shinagawa（Ibaraki University・Assistant Professor） Daiki Miyahara（The University of Electro-Communications・Assistant Professor）