Device for protecting the initial utilization of a processor /chip card
View Patent ↗A method for putting into operation a processor smart card in a network for communication, preferably in a GSM network, wherein the card user must identify himself with respect to the processor smart card (SIM) by a personal identification number. An application is stored on the smart card to control the execution upon the first use of the processor smart card by the card user. The application is used to transmit an indication of the first use to the card user. The application is arranged to transmit personal identification numbers for subsequent use of the processor smart card in the network to the first user of the card or to let them be defined by the first user of the card.
1. A method for putting into operation a processor smart card for a network for communication, wherein the card user is identified with respect to the processor smart card by a personal identification number, the method comprising the steps of:
for execution control of the first use, the processor smart card is first provided with an additional application for preventing use in the network, and allowing only local use by means of a card reader or card terminal, and
upon the first use of the processor smart card, the additional application outputs without a further check of a secret number a display signal for the first use and a request for confirmation, and
after receiving a confirmation signal the additional application is deactivated or its execution so changed that upon the next use of the card a display signal is outputted to indicate that the card has already been put into operation and the use of the processor smart card in the network is enabled;
wherein a personal identification number previously defined must be inputted for activating the additional application; and
wherein at least some personal identification numbers on the card are predetermined and personalized on the processor smart card, and said numbers are indicated upon the first use for later use on the card reader or card terminal.
2. The method according to claim 1 , wherein the entry of a personal identification number and/or a secret number for changing or unblocking the personal identification number is requested after the first use of the card and prior to the deactivation or change of state of the additional application.
3. The method according to claim 1 , wherein at least some personal identification numbers on the card are set by a random-number generator built into the card and said numbers are indicated during the first use on the card reader or card terminal.
4. The method according to claim 1 , wherein at least some personal identification numbers are combined for transmission to the network in encrypted form via a data channel, and sent immediately or at a later time to a central place at the network operator or network service provider.
5. The method according to claim 1 , wherein the secret numbers to be defined at the first putting into operation are used not for the purpose of protecting the network application but for protecting an additional application on the smart card.
6. The method according to claim 1 , wherein information, on the first use of the processor smart card and on the personal identification numbers, is outputted or inputted via the hearing or speaking devices of the card reader or the card terminal.