Yuan Qi, Yuan Hao, Zhou MeiTong, Wen JingJing, Li JuYan, Hao Bing
Faculty of Communication and Electronic Engineering, Qiqihar University, Qiqihar, 161000, China.
College of Computer and Big Data, Heilongjiang University, Harbin, 150080, China.
Sci Rep. 2025 Jan 2;15(1):526. doi: 10.1038/s41598-024-84244-z.
The rapid advancement of quantum key distribution technology in recent years has spurred significant innovation within the field. Nevertheless, a crucial yet frequently underexplored challenge involves the comprehensive evaluation of security quantum state modulation. To address this issue, we propose a novel framework for quantum group key distribution. In the setup phase, preprocessing is introduced to monitor photon intensity and count, thereby ensuring the secure initialization of the protocol. During the measurement phase, signal consistency checks are implemented to verify that the intensity of the signal received by the measurement device corresponds precisely to the transmitted signal. In the key generation phase, error correction is employed to mitigate errors induced by noise or external interference, effectively reducing the error margin and restricting the information available to potential eavesdroppers. This systematic, multi-phase approach significantly enhances the framework's robustness. Experimental results demonstrate that the proposed protocol not only substantially reduces the error rate under adversarial eavesdropping but also improves the efficiency and security of the key distribution process.
近年来，量子密钥分发技术的迅速发展在该领域引发了重大创新。然而，一个关键但经常被忽视的挑战涉及对安全量子态调制的全面评估。为解决这一问题，我们提出了一种用于量子群组密钥分发的新颖框架。在设置阶段，引入预处理以监测光子强度和计数，从而确保协议的安全初始化。在测量阶段，实施信号一致性检查，以验证测量设备接收到的信号强度与传输信号精确对应。在密钥生成阶段，采用纠错来减轻由噪声或外部干扰引起的错误，有效降低误差幅度并限制潜在窃听者可获取的信息。这种系统的多阶段方法显著增强了框架的稳健性。实验结果表明，所提出的协议不仅在对抗性窃听情况下大幅降低了错误率，还提高了密钥分发过程的效率和安全性。
