Yuma Soga (4th year, Faculty of Environment and Information Studies), a member of the Delight Group in the joint laboratory of Professor Rodney Van Meter of the Faculty of Environment and Information Studies, received the "Outstanding Paper Award" at the Multimedia, Distributed, Cooperative and Mobile (DICOMO 2025) Symposium.
DICOMO 2025 is a symposium targeting network-related research fields, jointly organized by multiple research groups of the Information Processing Society of Japan (IPSJ). It is an academic conference covering a wide range of themes from communication technology to mobile computing and security. This year, under the unified theme of "Good Relationships between Humans and AI," 224 research papers were presented, of which 22 were selected for the Outstanding Paper Award.
In Mr. Soga's presentation, he focused on the problems that arise during key rotation for digital certificates and proposed a new scheme that allows only the private key to be exchanged without requiring the reissue of the certificate. In the review, the research was evaluated for balancing practicality and academic novelty, reducing the procedural burden on end-users during key rotation while maintaining compatibility with various standards.
Mr. Soga is a member of the "Kusumoto, Takashio, Van Meter, Uehara, Mitsugi, Nakazawa, and Ohkoshi Joint Research Project (SFC-RG)" and is engaged in research activities.
Award-winning Paper
An Identifier and Key Management Scheme Allowing Exchange of Keys Used for Personal Authentication in Digital Certificates
Yuma Soga (Keio University Faculty of Environment and Information Studies), Ryosuke Abe, Shigeya Suzuki (Keio University Graduate School of Media and Governance)
Comment from Yuma Soga
I am very happy that the evaluation of this Outstanding Paper Award recognized the balance between "practicality" and "academic novelty," as I feel it is a recognition of research that is truly characteristic of SFC. I would like to express my sincere gratitude to my academic advisors who supported my research and to everyone who provided valuable advice. Encouraged by this award, I intend to continue working on research with an eye toward social implementation.
Source: Shonan Fujisawa Campus (SFC) Office, General Affairs