International Journal of Engineering and Innovative Technology (IJEIT)
Security in the computer is largely supported by the passwords for authentication process. The most common approach for authentication is alphanumeric passwords. Traditionally, alphanumeric passwords have been used for authentication, but they are known to have security and usability problems. The passwords require the following fundamentally requirements so that the problems with passwords arises, passwords should be easy to remember, and the user authentication protocol should be executable quickly and easily by humans. Passwords should be secure, i.e. they should look random and should be hard to guess.