Three way authentication technique using User Defined Graphical Authentication System

Abstract

In the field of data security, user authentication is extremely important. To enforce the security of information, passwords were introduced. User authentication is one of the important topics in information security. A strong text-based password scheme provides some degree of security. However, the very fact that strong passwords are difficult to memorize often leads their owners to write down them on papers or maybe save them during a file. A text-based password may be a popular authentication method used from the past. Text-based passwords tend to various attacks such as dictionary attacks, guessing attacks, brute force attacks and social engineering attacks, etc. An alternative solution to text-based authentication is graphical password authentication. In recent years, computer systems and Internet-based environments used graphical authentication technique for his or her user