In an IC card to be used for individual authentication or settlement, it becomes necessary to prevent unfair use by any other person than the owner due to loss, theft or the like. For this reason, individual authentication information of the user of the IC card concerned is inputted; the above-described...http://www.google.fr/patents/US20040172541?utm_source=gb-gplus-shareBrevet US20040172541 - IC card having security control
