International Journal of Computer Science and Network
The most common computer authentication method is to use alphanumerical usernames and passwords. This method has been shown to have significant drawbacks. A graphical based password is one promising alternatives of textual passwords. According to human psychology, humans are able to remember pictures easily. Recently, E-transactions have become an important tool to carry out financial transactions besides the orthodox banking transactions. They are increasingly being used to make payments, access bank accounts and facilitate other commercial transactions.