Novel scheme for securing passwords

The most common method of authentication or protection against intrusion in a computer system is to use alphanumeric usernames and password. Choosing a strong password and protecting the chosen password has always been a popular topic among security researchers. Traditionally strong password schemes could provide with certain degree of security but strong password leads complexity and difficult to memorize and often leads their owner to write them down on paper. As a result, security becomes compromised. Also a good password is one which can be typed quickly, so someone else can´t look over your shoulder. In this paper we explore some techniques of protecting the passwords and try to eliminate the shouldering problem. We also try to eliminate the dictionary attacks and brute-force attacks. Later on we tried to evolve a password scheme with some graphic technique which can be used in highly secured applications.