About HAYASHI Ryotaro
About Tokyo Inst. of Technol., Tokyo, JPN
About TANAKA Keisuke
About Tokyo Inst. of Technol., Tokyo, JPN
About IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (Institute of Electronics, Information and Communication Engineers)
About public key cryptography
About computational complexity
About Code theory
About 匿名性
About 署名
About 暗号