Verfahren zum sicheren Betrieb eines tragbaren Datenträgers
摘要
Method for secure operation of a portable data carrier (1), which has a memory (4) in which at least a data unit and information controlling access to the data unit are stored. Access is only allowed to the information if the correct access data are presented. Prior to granting access to the data unit, a check is carried out to determine if the access information has been manipulated and or if manipulation took place during processing of the access information. An independent claim is made for a portable data carrier with a security function for checking for manipulation of access information prior to granting access to an information unit.
申请公布号
DE502005010867(D1)
申请公布日期
2011.03.03
申请号
DE20055010867T
申请日期
2005.02.16
申请人
GIESECKE & DEVRIENT GMBH
发明人
BALDISCHWEILER, MICHAEL;BOCKES, MARKUS DR.;DREXLER, HERMANN DR.;KAHL, HELMUT DR.;KARCH, TORSTEN;LAMLA, MICHAEL;MAMUZIC, NIKOLA;SEYSEN, MARTIN DR.;VATER, HARALD DR.;WEICKER, SABINE