Journal:Quantum Information Processing
Funded by:国家自然科学基金
Abstract:We suggest an approach on the coherent attack of continuous-variable quantum key distribution (CVQKD) with an untrusted entangled source in the middle. The coherent attack strategy can be performed on the double links of quantum system, enabling the eavesdropper to steal more information from the proposed scheme using the entanglement correlation. Numeric simulation results show the improved performance of the attacked CVQKD system in terms of the derived secret key rate with the controllable parameters maximizing the stolen information.
Co-author:Ying Guo, Guihua Zeng, Ronghua Shi, Zhaoyuan Zhang
Document Type:J
Translation or Not:no