Keitaro Hashimoto

Keitaro Hashimoto

Biography

2018　Bachelor of Engineering, Tokyo Institute of Technology
2020　Master of Engineering, Tokyo Institute of Technology
2022　JSPS Research Fellow (DC2)
2023　Doctor of Engineering (Ph.D.), Tokyo Institute of Technology
2023　Joined the National Institute of Advanced Industrial Science and Technology (AIST)

Specializes in cryptographic protocols (e.g., key exchange and secure messaging).

Papers

• Keitaro Hashimoto, Shuichi Katsumata, and Thomas Prest. How to Hide MetaData in MLS-Like Secure Group Messaging: Simple, Modular, and Post-Quantum. In ACM CCS 2022.
• Keitaro Hashimoto, Shuichi Katsumata, Kris Kwiatkowski, and Thomas Prest. An Efficient and Generic Construction for Signal’s Handshake (X3DH): Post-Quantum, State Leakage Secure, and Deniable. Journal of Cryptology vol. 35, 17, 2022.
• Keitaro Hashimoto, Shuichi Katsumata, Eamonn W. Postlethwaite, Thomas Prest, and Bas Westerbaan. A Concrete Treatment of Efficient Continuous Group Key Agreement via Multi-Recipient PKEs. In ACM CCS 2021.
• Keitaro Hashimoto, Shuichi Katsumata, Kris Kwiatkowski, and Thomas Prest. An Efficient and Generic Construction for Signal’s Handshake (X3DH): Post-Quantum, State Leakage Secure, and Deniable. In PKC 2021.
• Keitaro Hashimoto and Wakaha Ogata. Unrestricted and compact certificateless aggregate signature scheme. Information Sciences, vol. 487, pp. 97--114, 2019.

website

• HP : https://keitaro-hashimoto.jp/
• Google Scholor : https://scholar.google.co.jp/citations?user=smdIoD4AAAAJ
• DBLP : https://dblp.org/pid/238/2661.html

Awards

• Tsujii Shigeo Security Award, 2022.
• Tsujii Shigeo Security Award, 2021.
• Best Paper Award in Symposium on Cryptography and Information Security 2021 (SCIS 2021).
• Outstanding Student Award（Master course）, 2020.