E-CAPTCHA: A Two Way Graphical Password based Hard AI Problem

Abstract

CAPTCHA is a Turing test that people can succeed, however current PC program could not succeed. The primary motivation behind CAPTCHA is to restrict automated scripts that are posted spam content. To upgrade the security another system Enhanced-CAPTCHA(E-CAPTCHA) is going to develop which includes some new elements specifically the Novel security based Grid-Box method where high security can accomplished by including 2 level of accessing.