随着校园信息化的不断深入,关键业务系统的不断部署,人们对校园网的依赖程度越来越高,为保证校园网只对授权的合法用户提供服务,防止非法用户获得系统服务,校园网系统提供服务时必须认证用户的身份,伴随着手机用户的广泛普及,提出一个基于查问/应答的一次一用的动态口令和基于TEA加密解密算法的校园网身份认证机制。 With the continuous deepening of informationization in the campus and continuous deployment of key business systems, people rely more and more on the campus network. In order to ensure that the campus network only provides services to authorized legal users and prevent illegal users from obtaining system services, When the system provides the service, the identity of the user must be authenticated. With the popularity of mobile phone users, a dynamic password based on challenge / response and a campus network authentication mechanism based on the TEA encryption and decryption algorithm are proposed.