# 280-km experimental demonstration of a quantum digital signature with one decoy state.

@article{Ding2020280kmED, title={280-km experimental demonstration of a quantum digital signature with one decoy state.}, author={Hua-Jian Ding and Jing-Jing Chen and Liang Ji and Xingyu Zhou and Chunhui Zhang and Chun-Mei Zhang and Qin Wang}, journal={Optics letters}, year={2020}, volume={45 7}, pages={ 1711-1714 } }

A quantum digital signature (QDS) guarantees the unforgeability, nonrepudiation, and transferability of signature messages with information-theoretic security, and hence has attracted much attention recently. However, most previous implementations of QDS showed relatively low signature rates and/or short transmission distance. In this Letter, we report a proof-of-principle phase-encoding QDS demonstration using only one decoy state. First, such a method avoids the modulation of the vacuum state…

## 8 Citations

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A demonstration of ``cryptographic agility'' in quantum communications offers a robust way to adapt security protocols in the face of a novel attack.

Quantum Digital Signatures with Random Pairing

- Physics, Education
- 2022

Ji-Qian Qin, Cong Jiang, 2 Yun-Long Yu, and Xiang-Bin Wang 2, 3, 4, 5, ∗ State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China…

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