针对现有无后端数据库RFID(radio frequency identification)认证协议存在的安全隐私以及效率低的问题,在Deng等人方案的基础上提出了改进方案。采用组身份标识共享技术,防止读写器穷举搜索,降低读写器搜索时间复杂度;改进读写器成功认...针对现有无后端数据库RFID(radio frequency identification)认证协议存在的安全隐私以及效率低的问题,在Deng等人方案的基础上提出了改进方案。采用组身份标识共享技术,防止读写器穷举搜索,降低读写器搜索时间复杂度;改进读写器成功认证标签后更新共享密钥的方式,实现阅读器和标签密钥的同步更新;引入阅读器和标签产生的随机数种子作为密钥更新的参数,确保密钥的新鲜性和随机性,以保护位置隐私。通过安全性分析和实验分析可知,改进方案有效增强了原协议的安全性,并且提高了读写器的搜索效率,降低了读写器搜索耗时和一轮完整通信所需时间,因此改进方案的实用性更佳。展开更多
A quantum secure direct communication and authentication protocol is proposed by using single photons.An information transmission is completed by sending photons once in quantum channel,which improves the efficiency w...A quantum secure direct communication and authentication protocol is proposed by using single photons.An information transmission is completed by sending photons once in quantum channel,which improves the efficiency without losing the security.The protocol encodes identity-string of the receiver as single photons sequence,which acts as detection sequence and implements authentication.Before secret message is encoded as single photons sequence,it is encrypted with identity-string of the sender by using XOR operation,which defends quantum teleportation attack efficiently.The base identity-strings of the sender and the receiver are reused unconditionally secure even in noisy channel.Compared with the protocol proposed by Wang et al.(Phys Lett A,2006,358:256–258),the protocol in this study sends photons once in one transmission and defends most attacks including‘man-in-the-middle’attack and quantum teleportation attack efficiently.展开更多
设计一种适用于物联网射频识别(radio frequency identification,RFID)系统被动式低成本标签的隐私保护认证协议.采用对称加密算法、Hash函数及随机数相结合的方式,实现标签、阅读器与后台数据库三方认证,并在认证过程中建立会话密钥,...设计一种适用于物联网射频识别(radio frequency identification,RFID)系统被动式低成本标签的隐私保护认证协议.采用对称加密算法、Hash函数及随机数相结合的方式,实现标签、阅读器与后台数据库三方认证,并在认证过程中建立会话密钥,防止标签携带者被非法阅读器访问及秘密追踪.GNY逻辑对协议分析证明了协议的安全性及可达到的认证目的.与He等人的AKAP和Chen等人提出的协议相比,该协议在标签计算量、通信次数及实现功能方面具有一定的综合优势.展开更多
文摘针对现有无后端数据库RFID(radio frequency identification)认证协议存在的安全隐私以及效率低的问题,在Deng等人方案的基础上提出了改进方案。采用组身份标识共享技术,防止读写器穷举搜索,降低读写器搜索时间复杂度;改进读写器成功认证标签后更新共享密钥的方式,实现阅读器和标签密钥的同步更新;引入阅读器和标签产生的随机数种子作为密钥更新的参数,确保密钥的新鲜性和随机性,以保护位置隐私。通过安全性分析和实验分析可知,改进方案有效增强了原协议的安全性,并且提高了读写器的搜索效率,降低了读写器搜索耗时和一轮完整通信所需时间,因此改进方案的实用性更佳。
基金supported by the National Natural Science Foundation of China(61370203)the Science &Technology Pillar Program of Sichuan Province of China(2013GZX0137)the Youth Fund Project of Sichuan Province of China(12ZB017)
文摘A quantum secure direct communication and authentication protocol is proposed by using single photons.An information transmission is completed by sending photons once in quantum channel,which improves the efficiency without losing the security.The protocol encodes identity-string of the receiver as single photons sequence,which acts as detection sequence and implements authentication.Before secret message is encoded as single photons sequence,it is encrypted with identity-string of the sender by using XOR operation,which defends quantum teleportation attack efficiently.The base identity-strings of the sender and the receiver are reused unconditionally secure even in noisy channel.Compared with the protocol proposed by Wang et al.(Phys Lett A,2006,358:256–258),the protocol in this study sends photons once in one transmission and defends most attacks including‘man-in-the-middle’attack and quantum teleportation attack efficiently.
文摘设计一种适用于物联网射频识别(radio frequency identification,RFID)系统被动式低成本标签的隐私保护认证协议.采用对称加密算法、Hash函数及随机数相结合的方式,实现标签、阅读器与后台数据库三方认证,并在认证过程中建立会话密钥,防止标签携带者被非法阅读器访问及秘密追踪.GNY逻辑对协议分析证明了协议的安全性及可达到的认证目的.与He等人的AKAP和Chen等人提出的协议相比,该协议在标签计算量、通信次数及实现功能方面具有一定的综合优势.
