Work

Improvement of Three-Party Semi-Quantum Protocol for Deterministic Secure Quantum Dialogue Based on GHZ States

Year: 2025

Type: article

Abstract: Through the analysis of "Three-party semi-quantum protocol for deterministic secure quantum dialogue based on GHZ states", we demonstrate that the protocol is vulnerable to attacks from dishonest participants. Specifically, the fully quantum-capable participant may behave dishonestly, leading the two semi-quantum participants to receive incorrect secret information, with the dishonest behavior remaining undetected. Accordingly, we propose an improved protocol that demonstrates robustness against various internal and external attacks, including dishonest participant attacks, and we further prove that it does not suffer from information leakage. Moreover, compared to the original protocol, the improved version achieves a significant enhancement in quantum communication efficiency.

Source: Entropy

DOI: 10.3390/e27101002

Authors: Ling Zhang, Xun Liu, Xiang-Jun Xin, Chao-Yang Li, Li Gong

Institution: Zhengzhou University of Light Industry

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

Funder: National Natural Science Foundation of China