Open Access

ARTICLE

A Controlled Quantum Dialogue Protocol Based on Quantum Walks

by Jinqiao Dai, Shibin Zhang, Yan Chang, Xueyang Li, Tao Zheng, Jinyue Xia

1 Chengdu University of Information Technology, Chengdu, 610225, China.
2 International Business Machines Corporation (IBM), New York, 10421, USA.

* Corresponding Author: Shibin Zhang. Email: .

Computers, Materials & Continua 2020, 64(2), 1247-1260. https://doi.org/10.32604/cmc.2020.010550

Received 09 March 2020; Accepted 17 April 2020; Issue published 10 June 2020

Abstract

In order to enable two parties to exchange their secret information equally, we propose a controlled quantum dialogue protocol based on quantum walks, which implements the equal exchange of secret information between the two parties with the help of the controller TP. The secret information is transmitted via quantum walks, by using this method, the previously required entangled particles do not need to be prepared in the initial phase, and the entangled particles can be produced spontaneously via quantum walks. Furthermore, to resist TP’s dishonest behavior, we use a hash function to verify the correctness of the secret information. The protocol analysis shows that it is safe and reliable facing some attacks, including intercept-measure-resend attack, entanglement attack, dishonest controller’s attack and participant attack. And has a slightly increasing efficiency comparing with the previous protocols. Note that the proposed protocol may be feasible because quantum walks prove to be implemented in different physical systems and experiments.

---

Keywords

---