Review on Graphical Password Authentication By Using Cloud

Graphical password is one of the solutions to alphanumeric password as it is very difficult process to remember textual password. When any application is developed with user friendly authentication it becomes easier for accessing and use that application. One of the main reasons behind this method is according to psychological studies human mind can easily remember images than textual password. In this paper we are proposing the authentication given to cloud by using graphical password authentication system. We have proposed cloud with graphical security by means of image password. We are proposing one of the algorithm which are depend on selection of username and images as a password and Also Grid algorithm is used as second method. The third method is based on color intensity algorithm. The fourth method uses Chameleon method for graphical password authentication.