Single Sign-On Solution

SSO-Single Sign-On SolutionSingle Sign-On solution-SSO Solution

Single Sign-on, cross-origin access, single point of login, user cross-origin, cross-origin login, cross-origin login Solution

How to solve JS cross-origin access in Controllable cases on the server side
Http://homepage.yesky.com/458/2703458.shtml

Single Sign-On Enterprise Security for Web Applications
Http://msdn2.microsoft.com/en-us/library/ms972971.aspx

Simple implementation of Single Sign-on
Http://dev2dev.bea.com.cn/techdoc/20060228739.html

PHP implements automatic WebServices and cross-origin Login
Http://www.yaszone.com/wp/index.php/11

Cross-origin authentication solution for Passport
Http://www.dnpond.com/hphtml? Thread-2088.html

Cross-origin access solution for web Applications
Http://blog.csdn.net/macroway/archive/2006/05/14/728090.aspx

Cross-origin access solution for Flex or Flash
Http://www.k-zone.cn/zblog/post/log-2006-10-08-001.html

PHPRPC_2.1-20060810
Http://www.coolcode.cn/category/phprpc/page/3/

I believe that after you refer to the above articles, you will be able to implement the SSO solution that suits your needs!
Of course, if you have a better single-point login solution, share it!