Improving the Security of N-user Quantum Key distribution with N Quantum Channels

摘要：

　　In a recent paper C.H.Hong et al.,Opt.Commun.283 (2010) 2644,a n-user quantum key distribution protocol with n quantum channels was presented.By analyzing its security,it is shown that this protocol is insecure for Trent,a dishonest third party,who can steal the key without being detected by a special attack strategy.We give a description of this strategy and then put forward an improved protocol,which can stand against this attack.Furthermore,the improved protocol is feasible in the current technology conditions,because it is just required an incomplete Bell-state measurement in implementation of it.

关键词： Quantum key distribution Entanglement swapping Einstein-Podolsky-Rosen pairs

作者: Liu Xiaofen Chen Licong Pan Rijing

作者单位: School of Mathematics and Computer Science ,Key Lab of Network Security and Cryptography Fujian Normal University,Fuzhou 350007, China

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer Application and System Modeling(2012第二届计算机应用与系统建模国际会议)(ICCASM-2012)

会议地点: 沈阳

会议语种:英文

页码: 433-435

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）