Chip card, and method for the software-based modification of a chip card

摘要

The invention relates to a chip card, particularly a smart card, having an operating system which is implemented on the chip card and which controls the functions of the chip card, and having a first operating system kernel level which represents the core of the operating system and in which the process and data organization of the operating system is established, for which a second, uniform operating system kernel level is provided in which those functions of the first operating system kernel level are defined that can be addressed from outside the operating system, and that an interface is provided for accessing the second, uniform operating system kernel level from outside the operating system. Further, the invention relates to a method for the software-based modification of a chip card of this type.

主权项

1. A chip card, particularly a smart card, having a built-in chip, having an operating system which controls the functions of the chip card and which is implemented on the chip card, and having a first operating system kernel level, which represents the core of the operating system and in which the process and data organization of the operating system is established, said first operating system kernel level controlling the fundamental functions of the chip of the chip card on the low level, is hereby characterized in that a second, uniform operating system kernel level is provided, said second operating system kernel level controlling the fundamental functions of the chip of the chip card on the low level, said second operating system kernel level being adapted for making possible a uniform accessing of functions of the first operating system kernel level, in which those functions of the first operating system kernel level that can be addressed from outside the operating system are defined, in that an interface is provided for accessing the second, uniform operating system kernel level from outside the operating system, and in that an addressable switch is provided in the operating system, particularly in the second, uniform operating system kernel level.