METHOD AND EQUIPMENT FOR DATA EXCHANGE

摘要

PURPOSE: To prevent the fraud of high order in a card terminal device by providing a communication means for connecting a portable device such as a card to the terminal device an providing the portable device with a confirming means for confirming the validity of the terminal device. CONSTITUTION: When a user inserts a card 4 into the terminal device 3, the terminal device 3 itself is confirmed by this card 4. Then this card 4 is confirmed contrarily by he terminal device 3 and a user's fingerprint digitally registered at the time of issuing the card 4 is collated with a user's fingerprint read by a fingerprint scanner 7 at the time of using. Of course, another method such as a password can be used together with it at this personal identification step. When it is known that the card is not suited this card is locked upon within the terminal device 3 or recovered by an authorized person. In addition when it is known that the fingerprint is not coincident as the result of collating the fingerprint, the card is locked up cut when the finger print is coincident, using is permitted and service by means of the terminal is started.