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
This paper analyzes the development requirements that enterprises call for data storage and backup in the new information era, analyzes and compares the current mainstream network storage and backup technology, and gi...This paper analyzes the development requirements that enterprises call for data storage and backup in the new information era, analyzes and compares the current mainstream network storage and backup technology, and gives a conclusion in accordance with the implementation situation in our enterprise, which is provided with a reference value for the construction of enterprise storage backup systems.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。
文摘This paper analyzes the development requirements that enterprises call for data storage and backup in the new information era, analyzes and compares the current mainstream network storage and backup technology, and gives a conclusion in accordance with the implementation situation in our enterprise, which is provided with a reference value for the construction of enterprise storage backup systems.