Protection against misuse of chip cards involves first user function enabling user to supply optionally selected private personal number when data and/or functions are used for first time

摘要

The method involves providing access protection to data and/or functions on the chip card with a private personal number. The card has a first user function enabling the user to supply an optionally selected private personal number when the data and/or functions are used for the first time. Entry of this number sets the data and/or functions into a used state.