Kaisei Kajita

Sharing Same Elements in User Viewing History Data Securely Through Private Set Intersection Under User-centric Data Control

Arisa Fujii, Hisayuki Ohmata, Chigusa Yamamura, 2020, IMX.

Privacy Preserving System for Real-Time Enriched-Integrated Service with Feedback to Providers

Kazuto Ogawa, Go Ohtake, Kaisei Kajita, 2019, HCI.

A Constant-Size Signature Scheme with a Tighter Reduction from the CDH Assumption

Kazuto Ogawa, Eiichiro Fujisaki, Kaisei Kajita, 2020, IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences.

Short Lattice Signatures in the Standard Model with Efficient Tag Generation

Tsuyoshi Takagi, Koji Nuida, Kazuto Ogawa, 2020, ProvSec.

A Constant-Size Signature Scheme with a Tighter Reduction from the CDH Assumption

Kazuto Ogawa, Eiichiro Fujisaki, Kaisei Kajita, 2020, IACR Cryptol. ePrint Arch..

Privacy-Preserving System for Enriched-Integrated Service

Kazuto Ogawa, Go Ohtake, Kaisei Kajita, 2021, IEICE Trans. Inf. Syst..