4 papers
Comparison of security mechanisms of Mathematical cipher, Wyner scheme, QKD, and Quantum stream cipher
Gikyu Yamamoto, Osamu Hirota
A new generation of global communications technology has been emerging. These systems, which utilize established device technologies and quantum effect devices, require ultra-high…
Quantum Shannon Information Theory -Design of communication, cipher and sensor-
Osamu Hirota
One of the key aspects of Shannon's theory is that it provides guidance for designing the most efficient systems, such as minimizing errors and clarifying the limits of coding. Suc…
Quantum stream cipher and Quantum block cipher -The Era of 100 Gbit/sec real-time encryption-
Osamu Hirota
This paper is the part-II of the previous paper and introduces the world of Yuen's concept. In the theory of cryptology, the Shannon impossibility theorem states that the upper bou…
Design of Quantum Stream Cipher: Part-I -Lifting the Shannon Impossibility Theorem-
Osamu Hirota
This paper is dedicated to the late Professor H.P. Yuen in commemoration to our 50-year friendship. He invented the concept of quantum stream cipher. It is designed based on a comp…