About Tochikubo Kouya
About Department of Mathematical Information Engineering, College of Industrial Technology, Nihon University
About Journal of Information Processing (Web)
About decentralization
About subset
About improvement
About authentication
About efficiency
About transmission speed
About secret sharing scheme
About subset
About participant
About improvement
About access
About information rate
About (k n)-threshold scheme
About secret sharing scheme
About general access structure
About Data protection
About Code theory
About 認証
About サブセット
About 秘密分散法
About 参加者
About 情報速度