One of the major drawbacks of conventional biometric system is that an attacker can steal or hack template and gain access to the system. Even though it is used for security purpose, biometrics itself is prone to attack. Template security in biometrics system is one of the thrust research areas. In this work, fingerprint system is used to encrypt templates. Performance is evaluated on PolyU DBI fingerprint database and MEPCO biometrics database. Fuzzy vault method is used to encrypt the template. Accuracy is 97 when keysize is 7 and 200 chaff points are concealed with genuine minutiae points. As security increased, accuracy decreases, as there is trade-off.