激光与光电子学进展, 2017, 54 (12): 122702, 网络出版: 2017-12-11
三量子态量子密钥分发协议安全性分析 下载: 534次
Security Analysis of Three-State Quantum Key Distribution Protocol
量子光学 量子通信 BB84协议 三量子态量子密钥分发协议 安全性分析 quantum optics quantum communications BB84 protocol three-state quantum key distribution protocol security analysis
摘要
研究了具有优秀安全性的PBC00协议。为了便于制备偏振态与实现协议, 将PBC00协议的偏振态改为|1〉、|0〉和|+〉。为了分析协议的安全性, 假设窃听者使用截获重发的方式对量子密钥分发(QKD)过程进行窃听, 分析了窃听者可能使用的测量基矢, 计算得出由窃听者引起的密钥错误率。介绍了以BKM07协议为基础的改动后的三量子态QKD方案, 分析了其安全性。研究结果表明, 改动后的PBC00协议具有更好的发现窃听者的能力, 且易于实现, 具有实际应用的潜力。
Abstract
The PBC00 protocol with excellent security features is studied. For the purpose of preparing polarization states and realizing protocol, the polarization states of the PBC00 protocol are changed to the |1〉, |0〉 and |+〉. For the purpose of analyzing the secutity of protocol, it is assumed that the eavesdropper uses the intercept-resend strategy to eavesdrop during the quantum key distribution (QKD) process. The measurement basic vectors that the eavesdropper may use are analyzed and the key error rates caused by the eavesdropper are calculated. The modified three-state QKD protocol based on the BKM07 protocol is introduced and its security is analyzed. The study results show that the modified PBC00 protocol has a stronger ability to detect eavesdroppers, is easy to implement, and has a practical application potential.
王者, 姚治海, 苟立丹, 王晓茜. 三量子态量子密钥分发协议安全性分析[J]. 激光与光电子学进展, 2017, 54(12): 122702. Wang Zhe, Yao Zhihai, Gou Lidan, Wang Xiaoqian. Security Analysis of Three-State Quantum Key Distribution Protocol[J]. Laser & Optoelectronics Progress, 2017, 54(12): 122702.