多媒体教室用移动终端身份认证算法的设计

Algorithm Design of Mobile Terminal Identity Authentication of Multimedia Classrooms

针对多媒体教室身份认证存在安全风险的问题,提出了一种多媒体教室用移动终端身份认证算法,将移动终端MAC地址、IMSI和多媒体教室服务器端的MAC地址作为身份认证设计的主要依据,分别从注册和认证2个方面进行了设计。该算法可在移动终端与多媒体教室服务器端时间同步条件下对IMSI、系统时间和用户访问次数进行不可逆运算,并生成对称加密的动态密钥,实现多媒体教室服务器端和用户移动终端的双向认证。其实验环境下认证准确率可达到100%,且认证平均耗时仅为0.19 ms,具有良好的性能表现。

Aiming at the security risk of identity authentication,this paper proposes an algorithm for mobile terminal identity authentication of multimedia classrooms.The algorithm takes the MAC address of mobile terminal,IMSI and MAC address of Multimedia Classroom Server as the main basis of identity authentication,and designs from two aspects of registration and authentication.On the premise of realizing time synchronization between mobile terminal and Multimedia Classroom Server,IMSI,system time and user access times data information are irreversibly calculated to generate symmetric encrypted dynamic key,which realizes the two-way authentication between the multimedia classroom server and the user's mobile terminal.The authentication accuracy in the experimental environment can reach 100%,and the average authentication time is 0.19 ms,which displays good performance.