3 papers
cs.CR2025
Cyclic Equalizability of Words and Its Application to Card-Based Cryptography
Kazumasa Shinagawa, Koji Nuida
Card-based cryptography is a research area to implement cryptographic procedures using a deck of physical cards. In recent years, it has been found to be related to finite group th…
cs.CR2025
A Note on Single-Cut Full-Open Protocols
Kazumasa Shinagawa, Koji Nuida
Card-based cryptography is a research area that realizes cryptographic protocols such as secure computation by applying shuffles to sequences of cards that encode input values. A s…
math.NT2024
Bounds on Heights of -isogeny Graphs in Ordinary Curves over and and Its Application
Yuji Hashimoto, Koji Nuida
It is known that any isogeny graph consisting of ordinary elliptic curves over with or has a special structure, called a volcano graph. We have a bound…