Authentication Protocol Using Quantum Superposition States

Yoshito Kanamori ； Seong-Moo Yoo ； Don A. Gregory ； Frederick T. Sheldon

《International Journal of Network Security》 9卷2期 (2009/09) Pp. 101-108

https://doi.org/10.6633/IJNS.200909.9(2).01

並列摘要

When it became known that quantum computers could break the RSA (named for its creators-Rivest. Shamir, and Adleman) encrypt ion algorithm within a polynomial-time, quantum cryptography began to he actively studied. Other classical cryptographic algorithms are only secure when malicious users do not have sufficient computational power to break security within a practical amount of time. Recently, many quantum authentication protocols sharing quantum entangled particles between commnunicators have been proposed. providing unconditional security. An issue caused by sharing quantum entangled particles is that it may not he simple to apply these protocols to authenticate a specific user in a group of many users. An authentication protocol using quantum superposition states instead of quantum entangled particles is proposed. The random number shared between a sender and a receiver can he used for classical encryption after the authentication has succeeded. The proposed protocol can he implemented with the current technologies we introduce in tins paper.

並列關鍵字

Authentication encryption ； encryption ； photon ； polarization ； quantum cryptography ； superposition states