Date Added: Jul 2011
User authentication is the first phase of information security. Users should remember their passwords and recall them for authentication. Text based passwords is the traditional method for authentication. Short and simple passwords are memorable and usable but not secure. Random and lengthy passwords are secure but not memorable and usable. Graphical password schemes are introduced as alternatives to text based schemes. Few grid based authentication techniques are also proposed. The purpose of this paper is to introduce a tool to enhance the memorability and security of passwords which also provides usability.