METHOD OF UNBLOCKING A LOCKED APPLICATION USING A PERSONAL IDENTIFICATION NUMBER

摘要

The invention relates to a method of securing applications on a chip card which is disposed in a digital appliance, comprising the following steps consisting in: counting the number of times a personal identification number of a chip card application is input erroneously; when said number reaches a threshold, blocking (102) the application or the chip card; restarting the erroneous input count and unblocking the chip card or the application when the personal identification number of the chip card is input (105). In this way, said PIN-secured applications offer a high level of security without requiring the storing of additional unblocking data.