Engineering Research Publication
The transactions of money play an important role in the present society. ATMs and Credit cards are mainly used for transactions. ATM machine uses ATM Card and PIN (Personal Identification Number) as authentication mechanisms. Today intruders produce duplicate ATM card and make fraudulent transactions by fixing ATM Card scanners in ATM Machine to obtain encrypted data from ATM Card. So the authentication provided by card and PIN is not so secure. The fingerprints of customers can be used as a password instead traditional PIN to overcome this disadvantage. Fingerprints of each human being are unique and unchangeable. Hence it provides more security and authentication than the current systems.