摘要
实现跨网络用户动态双向身份准确认证是当前诸多领域重点关注的话题。针对当前认证方法存在耗时较长、系统资源占用率较高,且抗攻击性能较差的缺点,提出一种基于改进智能卡的跨网络用户动态双向身份认证方法,当计算机系统个人服务器收到来自传感器节点发送的用户身份信息后,通过计算收到身份信息验证码与本身服务器存储的验证码对比验证用户身份的合法性,以及通过传感器节点与个人服务器共享密钥解密获得的用户身份信息当前时间戳与之前时间戳的比对即可初步实现跨网络用户双向身份认证。在初步认证基础上,在跨网络用户动态双向身份认证阶段加入计数器,用来统计跨网络用户身份认证阶段遭受的攻击情况,并通过对跨网络用户的标识符结构形式的合法验证和对计算机系统个人服务器在某时刻接收到身份信息时间戳的有效期进行核查,最终实现跨网络用户动态双向身份认证。仿真结果表明,上述方法具有耗时短、系统资源占用率低,且抗攻击性强的优点。
At present,the authentication method has long consumption time,high occupancy rate of system resource and poor anti-attack performance. Therefore,an improved authentication method of cross-network user dynamic bidirectional identity based on improved smart card was proposed. After the personal server of computer system received the user identity information sent by the sensor node,the validity of user identity was verified by comparing the verification code of identity information received by calculation with the verification code stored in the server itself,and the current user identity information obtained by decrypting the shared key between the sensor node and the individual server was verified. Then,the cross-network time user bidirectional authentication was realized by comparing the time stamp with the previous time stamp. Based on the preliminary authentication,the counter was added at the stage of cross-network user dynamic bidirectional identity authentication to calculate the attacks during the crossnetwork user authentication phase. Finally,through the rightful verification of cross-network user identifier structure form and the check of validity period of identity information time stamp received by the personal server of computer system at a certain time,the cross-network user dynamic bidirectional identity authentication was achieved. Simulation results show that the above method has low time consumption,low system resource occupancy rate and strong anti-attack performance.
作者
丁士杰
谢军
DING Shi-jie;XIE Jun(School of Business,Suzhou University,Suzhou Anhui 234000,China)
出处
《计算机仿真》
北大核心
2019年第1期300-303,396,共5页
Computer Simulation
基金
宿州学院教授(博士)研究项目(2015jb14)
安徽省教育厅人文社科研究重点项目(SK2017A0465)
关键词
跨网络用户
动态
双向
身份
准确认证
Cross-network users
Dynamic
Bidirectional
Identity
Accurate authentication
