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In this paper, the authors introduce a authorization scheme for banking by using implicit password. As they know graphical password scheme suffered from shoulder-surfing and screen dump attacks. As they know for banking security is the first line of defense against compromising confidentiality and integrity. Simply the username and password schemes are easy to implement. But that traditional scheme have been subjected to several attacks. Token and biometric based authentication systems were introduced for alternative to traditional scheme. However, they have not improved substantially to justify the investment.
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