remote login
7.This article proposes an efficient remote login authentication scheme based on sharing parabola.This scheme comes over Wu's scheme pitfalls,which is based on sharing line,and can resist Hwang's attack ways.The main advantages of this scheme are that user can choose and freely change their passwords,and the remote system does not need verification table for authentication login requests.
10.Based on the analysis of the challenge problems,such as login security,data access,the interruption of exam,in current remote exam system which is an important part of distance education,this article designs an ASP.NET-based remote exam system to solve these problems and discusses the key technologies.

