Method for programming chip cards

Abstract

Abstract Known chip cards can no longer be changed after the initial determination of the application areas. This method is suitable for enabling a subsequent expansion of the application areas of the chip card to be effected without impairing the security of the said card. Only the currently needed storage areas for the corresponding application areas are loaded and thereafter all storage areas are protected against unauthorised entries or changes by means of control flags. Expanding the application areas can be effected only by authorised stations. This invention can be used for all application areas of multifunctional chip cards.

Inventors

• 👤 Klaus Dipl. Ing. Milczewsky

Bibliographic Details