arXiv:2009.12535 · Electronics

Double C-NOT Attack on a Single-State Semi-Quantum Key Distribution Protocol and Its Improvement

Jun Gu, Tzonelih Hwang

Published Aug 12, 2022• 10 citations

Abstract

Recently, Zhang et al. proposed a single-state semi-quantum key distribution protocol to help a quantum participant share a secret key with a classical participant. However, this study shows that an eavesdropper can use a double C-NOT attack to obtain parts of the final shared key without being detected by the participants. To avoid this problem, a modification is proposed here.

DOI: 10.3390/electronics11162522

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