一种基于[7,1]CSS纠错码的量子密钥分配协议  

A QUANTUM KEY DISTRIBUTION PROTOCOL BASED ON[7,1]CSS ERROR CORRECTING CODE

作　　者：孙添资 刘世民 肖海龙 张影 冯宝 Sun Tianzi;Liu Shimin;Xiao Hailong;Zhang Ying;Feng Bao(East Inner Mongolia Electric Power Co.,Ltd.,Hohhot 010010,Inner Mongolia,China;NRGD QuantumCTek Co.,Ltd.,Nanjing 211000,Jiangsu,China;Nari Group Corporation/State Grid Electric Power Research Institute,Nanjing 211000,Jiangsu,China)

机构地区：[1]国网内蒙古东部电力有限公司信息通信分公司,内蒙古呼和浩特010010 [2]南京南瑞国盾量子技术有限公司,江苏南京211000 [3]南瑞集团有限公司(国网电力科学研究院有限公司),江苏南京211000

出　　处：《计算机应用与软件》2021年第3期309-313,共5页Computer Applications and Software

基　　金：国家自然科学基金项目(61502101);国网内蒙古东部电力有限公司科技项目(SGMDXT00XXJS1800138)。

摘　　要：量子密钥分配协议具有可证明的绝对安全性,但是由于量子信道噪声的作用,量子比特在传输过程中容易产生错误,从而降低量子密钥分配的效率。对此,根据量子纠错理论,利用Hamming码构造一种[7,1]CSS纠错码,并结合BB84协议,提出一种改进的量子密钥分配协议。通过理论分析与数值计算,对比改进协议与BB84协议在含噪声量子信道中的传输错误率,结果表明改进的量子密钥分配协议相比于BB84协议提高了对信道噪声的抵抗能力。The quantum key distribution protocol has provable absolute security and plays an important role in the field of communication security.However,due to the effect of quantum channel noise,qubits are prone to errors during transmission,thereby reducing the efficiency of quantum key distribution.In this paper,according to the theory of quantum error correction,a[7,1]CSS error correction code is constructed by using Hamming code,and an improved quantum key distribution protocol is proposed based on BB84 protocol.Through theoretical analysis and numerical calculation,the transmission error rate of the improved protocol and BB84 protocol in the noisy quantum channel was compared.The results show that the improved quantum key distribution protocol improves the resistance to channel noise compared to the BB84 protocol.

关 键 词：信息安全 量子密码 量子密钥分配 量子纠错码 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术] TN918[电子电信—通信与信息系统]