JPH01255991A - Ic card control system - Google Patents

Abstract

PURPOSE:To individually read/write an IC card without being conscious of a prescribed communication protocol control or the validity checking of a parameter by controlling the IC card with an interactive processing by means of an arbitrary command sequence. CONSTITUTION:A command/parameter analyzing part 2 to generate a command corresponding to the specifications of the IC card and access information, and an interactive processing part 6 to exchange the IC card and the data according to the individual command are provided. Consequently, the IC card can be controlled by the interactive processing by means of the arbitrary command sequence. Thus, only by setting the command and the parameter, the IC card can be individually read and written without being conscious of the communication protocol control or the validity checking of the parameter.

Description

[Detailed description of the invention] [Industry! Field of Application] This invention relates to an IC card control system, and in detail,
The present invention relates to an IC card control method in which a user can easily read necessary data from an IC card without knowing the communication protocol of the IC card in a terminal device having a C card reader/writer.

[Prior Art] An IC card usually has a built-in microprocessor, memory, and a communication control unit as a communication interface for exchanging data with an external device. A host computer, which is
It is used by being attached to a terminal device that has a dedicated C card reader/writer.

Then, the control program inside the IC card decodes the command sent from the external device, performs various processing according to the command, stores the data in the memory, reads the data specified by the command from the memory, and sends the data to the external device. Send it to the device.

Therefore, a terminal device with an IC card reader/writer (
computer, host computer, other personal computers, workstations, etc.)
In order to exchange data as described above with the C card, the terminal device is equipped with an IC card control system that generates commands and the like for this purpose.

This IC card control system is generally installed as one of the application programs in a terminal device, and by executing this program, it controls the communication protocol for sending and receiving data to and from the IC card, and checks the validity of parameters. Is going.

[Problem to be solved] However, since the processing method of such an IC card control program differs depending on the specifications of the IC card used in the system, it is difficult to create it unless you are familiar with the IC card specifications. difficult.

The present invention solves the problems of the prior art, and facilitates the IC card control system.
Reduces the complexity of card control unit development (and maintenance, etc.)
The purpose of the present invention is to provide an IC card control system that allows li li-.

[L stage for solving the problem] The configuration of the IC card control system of the present invention to achieve such an object is an information processing system that exchanges data directly with an IC card or via an IC card reader/writer. In the device, there is a command/parameter analysis means that analyzes input commands and parameters and generates commands and access information +V corresponding to the specifications of the installed IC card, and a normal advance analysis means that analyzes input commands and parameters and generates commands and access information +V corresponding to the specifications of the installed IC card. A normal processing section that sends and receives data to and from the IC card in a format that is compatible with the IC card according to a determined communication protocol, and an interaction processing section that sends and receives data individually to and from the IC card for each individual command. The interaction processing means receives individual commands, parameters, and data input according to screen guidance on the display, and sends these input commands and parameters to the command/parameter analysis means to generate commands.・Obtain commands and IC card access information that conform to the specifications of the installed IC card from the parameter analysis means, and transmit the obtained commands, access information, and input data in a communication format that conforms to the IC card. send,
The normal processing means and the interaction processing means are selectively switched in response to an external signal.

[Operation] In this way, the command/parameter analysis means that generates commands and access information corresponding to the specifications of the IC card, and the interaction processing means that individually sends and receives data to and from the IC card in accordance with individual commands. By providing this, it is possible to control the IC card with any command sequence through interactive processing. Therefore, just by setting commands and parameters, you can control predetermined communication protocols, check parameters for IE irregularity, etc. without knowing
It is possible to read/1Q write each C card individually.

In addition, normally, IC card control is performed according to the sequence from the application program for normal processing, and it can be switched to interactive processing at any time, so when performing maintenance etc.
The IC card can be controlled arbitrarily in an interactive manner, and the maintainability of the IC card system can be improved.

C Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the IC card control system according to the present invention, and FIG. 2 is an explanation of commands, parameter input guidance, and communication data display screens developed in interactive mode on the CRT display. 3 are flowcharts of processing regarding maintenance commands during the dialog processing.

In FIG. 1, IC is an IC card control unit of a terminal device, and the IC card control unit IC includes a microprocessor (MPU) 3, a keyboard/display unit 5, a memory 7, and an IC card or ICC card reader. The communication controller 1 is provided with a communication control unit 1 for exchanging data between the serial writers.

The MPU 3 has, as its functional blocks, a command/parameter analysis section 2, a normal processing section 4, an interaction processing section 6, and a communication format compatible with the IC card, such as start codes, commands, identification information, transmission data, etc. It also has the processing functions of a communication format assembling unit 8 that generates transfer data for the IC card by composing sets q of end codes and the like in a predetermined order.

Note that some or all of these processing functions may be realized by circuits as hardware, or the MPU 3 may execute corresponding processing programs stored in the memory 7 or the mask ROM built into the MPU 3. It may be realized by Furthermore, these may be realized by a combination of hardware and software.

Here, the command/parameter analysis section 2 checks the validity of the input or transferred command, and generates a command for the attached IC card from the command. Furthermore, the validity of various parameters as input logical ID information is checked, and the actual access start address, data length, etc. of the IC card are generated from the various parameters as access information. Note that the parameters here are identification information (IC information) given to registered information such as PIN number, deposit account number, bank code, and other specific information.
, zone designation information for managing a specific area of the IC card, information on areas, items, etc.

In addition, the command/parameter analysis unit 2 directly receives a specific command from the keyboard, and if the input command is for switching from normal processing to interactive processing, it starts the interactive processing fg6e and allows the normal processing unit 4 to interact with the command. Processing section 6
On the other hand, if the input command is for switching from dialog processing to normal processing (for example, a command for dialog processing section r), the normal processing section 4 is started and the control authority is transferred to the dialog processing section θ.
The control authority is transferred from the dialog processing section 6 to the dialog processing section 6.

The normal processing unit 4 is executed according to the sequence of the application program, and performs data processing according to the normal communication protocol in response to instructions from the outside.
Performs processing for exchanging data with the C card. Note that, if necessary, as part of normal communication protocol processing, commands and parameters transferred from the outside are sent to the command/parameter analysis section 2 to check their validity.

The interaction processing unit 6 performs interaction processing with the IC card for each command in response to individual command input as processing for special communication protocols, maintenance processing, and the like. In order to input commands, parameters, and data in this interactive process, the display of the keyboard/display unit 5 is controlled, input guidance is displayed on the screen, and what is input interactively on the screen is inputted as described above. Obtained by reading from the screen memory of the display.

The commands and parameters obtained in this way are used by the interaction processing unit 8.
, −jJ is sent to the command/parameter analysis feather ≦2. Then, the command/parameter analysis unit 2 checks whether the IE is appropriate, and generates a command code and access information corresponding to the specifications of the inserted IC card, which correspond to these commands and parameters. Next, these command codes, access information, and input data are sent to the interaction processing unit 6 to assemble a communication format. Sent to J58.

The communication format assembling section 8 assembles the command code, data length, access start address, and transmission data generated by the normal processing section 4 or the interaction processing section 6 into a communication format compatible with the IC card. and sends it to the communication control unit 1.

The MPU3 uses these processing functions to enable the ICC card reader/writer to read the IC card through the IC card reader/writer.
Exchange cards and data.

Now, an IC card system manufacturer incorporates a processing program having the above-mentioned interactive processing function into an application program that includes a sequence of commands for an IC card, sets commands and parameters according to a predetermined sequence, and processes the IC card. control.

Therefore, the application program sequence is 51311L.If you want to control the IC card with an arbitrary command sequence, send a special command to start interactive processing to the MPU 3 from the keyboard/display unit 5. The command fist parameter analysis section 2 decodes the command, the processing of the normal processing section 4 is stopped, and the dialogue processing section 6 is activated. When the dialogue processing unit 6 is activated, the dialogue processing unit 6 sends commands and parameters as shown in FIG. Display the input guidance screen.

Therefore, by following this guidance and inputting arbitrary commands and parameters from the keyboard of the keyboard display section 5, the interaction processing section 6 receives the commands, parameters, and data, and stores them in a specific area of the memory 7. Store it and start the command/parameter analysis section 2. Therefore, the command/parameter analysis unit 2 analyzes the input command and parameters stored in a specific area of the memory 7, and stores the command code and access information suitable for the IC card in a predetermined area of the memory 7. and reports it to the dialogue processing device 2.

The interaction processing unit 2 activates the communication format assembling unit 8 and passes control to the communication format assembling unit q. The communication format group 1γ, the unit 8, refers to the command code and access information stored in the memory 7, creates a message for the IC card based on the data input from the screen, and controls the communication. After that, the command parameter analysis section 2 is activated and control is passed to the command parameter analysis section 2.

Then, a response message from the IC card in response to the above transmission data is passed to the command parameter analysis section 2 via the communication control section 1, and the command parameter analysis section 2 stores the response code in a predetermined position in the response message. It converts into response information and parameter information of the parameter conversation processing system and passes them to the conversation processing section 6.

The dialog processing section 8 displays the result from the IC card on the CRT display screen 5a of the keyboard φ display section 5 as a message to the operator in accordance with the converted response information and parameter information.

In order to end the interactive processing mode, for exit? The cloak is input from the keyboard of the keyboard/display section 5. As a result, the command fist parameter analysis unit 2 obtains this dialogue path Y command, and by decoding it, the command/parameter analysis unit 2 stops the activation of the dialogue processing unit 8, and the normal processing unit 4 is activated. be done. At this time, the input guidance screen of the screen 5a shown in FIG. 2 is erased, and at the same time, the dialog processing ends.

As a result, the command/parameter analysis unit 2 and the normal processing unit 4 return to IC card control according to the normal application sequence, and normal processing of the IC card becomes possible.

By doing so, it is possible to perform interactive processing on the IC card, and through this interactive processing, maintenance and the like on the IC card can be performed.

FIG. 3 shows the overall flow of maintenance processing when a maintenance command is specified in interactive processing.

In this way, IC card system application creators can develop IC card communication protocols.

Without considering parameter checks, just set the parameters that are suitable for communicating with the IC card.
It is possible to read/write C cards, making it easier to construct an IC card system. In addition, by providing an interactive processing mode, application creators can simply switch the mode without creating a maintenance program.
Maintenance can be performed interactively with the C card, improving the maintainability of the IC card.

As explained above in 1-1, in the embodiment, the interaction processing unit inputs information such as 1'i to the IC card, what kinds of commands are available, and a list of commands to reduce the commands, etc. from the command parameter analysis unit 2. It is also possible to provide a function to output the information to the help screen and display it when a specific service command is input.

Furthermore, it is also possible to make it compatible with other IC card readers/writers or IC cards by recombining the interface function of the communication processing unit of the embodiment in accordance with the IC card reader/writer or IC card to be connected. .

In the embodiment, the communication format assembly section is provided separately from the normal processing section and the dialogue processing section, but the communication format assembly section may be configured integrally with each of these processing sections. Of course.

Furthermore, in the embodiment, the command/parameter analysis unit receives specific commands directly from the keyboard and prefers to switch between interactive processing and normal processing;
The dialogue processing section or the normal processing section which is currently activated may receive the switching command and switch over. Furthermore, switching may be performed using an external switch.

[Effects of the Invention] As can be understood from the above explanation, the present invention has a command/parameter analysis means that generates commands and access information corresponding to the specifications of the IC card, and By providing a dialogue processing means that individually exchanges data with
The IC card can be controlled using the α command sequence.

Therefore, by simply setting commands and parameters, it is possible to read/write individual IC cards without being aware of predetermined communication protocol control or checking the validity of parameters.

In addition, normally, IC card control is performed according to the sequence from the application link program of normal processing, and it is switched to interactive processing at the time of operation or α, so when performing maintenance etc., IC card control can be performed arbitrarily in an interactive manner. Therefore, the maintainability of the IC card system can be improved.

4. Fl'il condolence explanation of the drawings Fig. 1 is a block diagram of an embodiment of the IC card control system according to the present invention, and Fig. 2 shows commands and parameter input guidance developed in interactive mode on the CRT display. and an explanatory diagram of the communication data display screen,
FIG. 3 is a flowchart of processing regarding maintenance commands during the dialog processing.

DESCRIPTION OF SYMBOLS 1... Communication processing section, 2... Command and parameter analysis section, 3... MPU14... Normal processing section, 5...
Keyboard/display section, 6... Dialogue processing section, 7
...Memory, 8...Communication format assembly\γte section.

Special 111 applicant 11\γMaxell Co., Ltd. agent
Patent Attorney L Kaji Yama Kore Patent Attorney 1- Yamaki Fujio

Claims (2)

[Claims] (1) In an information processing device that exchanges data with an IC card directly or via an IC card reader/writer,
A command/parameter analysis means that analyzes input commands and parameters to generate commands and access information corresponding to the specifications of the installed IC card, and a normal predetermined communication protocol in response to external commands. normal processing means for exchanging data with the IC card in a format compatible with the IC card; and interaction processing means for exchanging data individually with the IC card for each individual command; The means receives individual commands, parameters and data input in response to screen guidance on the display;
These input commands and parameters are sent to the command/parameter analysis means, and commands and access information of the IC card that conform to the specifications of the IC card installed are obtained from the command/parameter analysis means. , transmitting the obtained command, access information, and the input data in a communication format compatible with the IC card, and selectively switching the normal processing means and the interaction processing means in response to an external signal. An IC card control method featuring: (2) The interaction processing means receives individual commands, parameters, and data input in accordance with the screen guidance on the display, and sends these input commands and parameters to the command/parameter analysis means for command/parameter analysis. A command that conforms to the specifications of the IC card installed and access information of the IC card are obtained from the parameter analysis means, and the obtained command, access information, and the input data are communicated that conforms to the IC card. format, and displays the response result from the IC card on the screen of the display, and the normal processing means and the interaction processing means are selectively switched in response to an external signal. The IC card control system according to claim 1, characterized in that: