518 citations · 1.1k across the 29 of their papers we have counts for
29 papers
Application of quantum Pinsker inequality to quantum communications
Osamu Hirota
Back in the 1960s, based on Wiener's thought, Shikao Ikehara (first student of N.Wiener) encouraged the progress of Hisaharu Umegaki's research from a pure mathematical aspect in o…
Towards Quantum Enigma Cipher III -Communication performance-
Osamu Hirota
Cloud computing system based on data centers has recently attracted considerable attention. In that system, all data are communicated via a high speed optical network between a cus…
Towards Quantum Enigma Cipher II-A protocol based on quantum illumination-
Osamu Hirota
This research note II introduces a way to understand a basic concept of the quantum enigma cipher. The conventional cipher is designed by a mathematical algorithm and its security…
Towards Quantum Enigma Cipher
Osamu Hirota
This research note suggests a new way to realize a high speed direct encryption based on quantum detection theory. The conventional cipher is designed by a mathematical algorithm a…
Masking Property of Quantum Random Cipher with Phase Mask Encryption -Towards Quantum Enigma Cipher-
Masaki Sohma, Osamu Hirota
The security analysis of physical encryption protocol based on coherent pulse position modulation(CPPM) originated by Yuen is one of the most interesting topics in the study of cry…
Misconception in Theory of Quantum Key Distribution -Reply to Renner-
Osamu Hirota
It has been pointed out by Yuen that the security theory of quantum key distribution(QKD) guided by Shor-Preskill theory has serious defects, in particular their key rate theory is…