About HIROTA Osamu
About Tamagawa Univ., Tokyo, JPN
About IWAKOSHI Takehisa
About Tamagawa Univ., Tokyo, JPN
About SOHMA Masaki
About Tamagawa Univ., Tokyo, JPN
About FUTAMI Fumio
About Tamagawa Univ., Tokyo, JPN
About Proceedings of SPIE
About computer application
About communication network
About secret key cryptosystem
About limit
About cryptography key
About quantum noise
About secret
About communication channel capacity
About optical communication
About feasibility
About demonstration experiment
About amplitude modulation
About quantum cryptography
About protocol
About constraint condition (restriction)
About security
About Cloud Computing
About optical network
About cryptographic protocol
About Shannon limit
About stream cipher
About wiretapping
About Code theory
About 対称
About 鍵
About 暗号
About Shannon限界
About 量子
About ストリーム暗号
About 実験
About 実証
About 可能性