Design and Implementation of Single Sign on System in Portal Website Based on Cookie

A single sign-on model is designed aiming at the characteristics of portal website,it proposes a lightweight single sing-on designing scheme based on cookie by researching and analyzing the mechanism of single sign-on.This model is a combination of cookie and ticket for the core centralized authentication system.As a result,it makes more convenient for users to access the protected resources,and makes the single sign-on come true,makes more convenient for users to access all application systems,enhances security of accessing sites.