Method and system for biometrically enabling a proximity payment device

摘要

A self-validating payment device for making proximity payment transactions through a point-of-sale device is provided. The payment device includes electronics for wireless communication of stored or processed payer information to the point-of-sale device. A biometric reader is integrated into the payment device. A biometric measurement of a user of the payment device in the field is compared internally with a reference biometric measurement corresponding to the user to whom the payment device is registered. The payment device self-validates itself for use according to the results of comparison.