Google Two-factor Authentication Tutorial for Codeigniter

问题

Does anyone know a good Google Two-factor Authentication tutorial for Codeigniter?

回答1:

Here tutsplus Integrating Two-Factor Authentication with CodeIgniter

http://net.tutsplus.com/tutorials/php/integrating-two-factor-authentication-with-codeigniter/

来源：https://stackoverflow.com/questions/16908124/google-two-factor-authentication-tutorial-for-codeigniter