JPH04117589A - Ic card - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a multifunctional IC card.

[Prior Art] In general, an IC card is used as a card with a built-in integrated circuit chip.
There are cards and memory cards.

A card commonly called an IC card is a plastic card with a built-in microcomputer chip and a memory chip, and can perform security checks on input and output data. Figure 7 shows l5O(
FIG. 2 is a diagram for explaining a terminal section of a conventional IC card that complies with the International Organization for Standardization (International Organization for Standardization) standards, and the terminal section is shown enlarged on the right side of the figure.

Eight terminals 11 to 18 are placed in the predetermined positions of the IC card IO.
They are arranged in rows and two columns. Among these terminals, 11 is the power supply voltage vcc for the microcomputer, memory, etc.
12 is a ground terminal, 13 is a reset signal input terminal, 14 is a program voltage supply terminal, 15
is a clock signal input terminal, 18 is a data input/output terminal, 1
7 and 18 indicate spare terminals, respectively. Spare terminals 17 and 18 are terminals provided for future use and are not used at all.

Data input/output is performed via the data input/output terminal 16.

A memory card is a plastic card with a built-in memory chip, and can input and output large amounts of data, but cannot perform security checks like an IC card. FIG. 8 is a diagram for explaining the terminal section of this type of memory card, and the terminal section is shown enlarged on the right side of the figure.

A memory card has more terminals than an IC card, and these terminals are arranged in a row at one end of the memory card 19. These terminals are classified into a power supply-related terminal group 20, an address-related terminal group 2, a data-related terminal group 22, and a control-related terminal group 23.

[Problems to be Solved by the Invention] Memory cards are convenient when handling large amounts of data or data that does not require security checks because they can be processed in a short time, but they are difficult to use when handling data that requires security checks. is not suitable. On the contrary, IC cards are advantageous when security checks are required or when the card is intended for multi-function or multi-purpose use, but when handling large amounts of data or data that does not require security checks. is time consuming and inconvenient. Therefore, it becomes necessary for users to carry an IC card and a memory card separately depending on the purpose.

Furthermore, since the arrangement and configuration of terminals are different between a memory card and an IC card, a dedicated terminal device is required for each.

Therefore, an object of the present invention is to provide a multifunctional IC card that can be used as a memory card or an IC card depending on the application.

[Means for Solving the Problems] According to the present invention, the above object is achieved by connecting two spare terminals, a data input/output terminal, and a data input/output terminal and a spare terminal, so that either of these terminals can be connected by switching. a switch means capable of selecting one of the applications; a storage means for storing attribute parameters of a plurality of applications; the storage means and the switch means are connected to read the attribute parameters of the selected application from the storage means; This is achieved by including a control means that switches the switch means accordingly and controls data input and output via the spare terminal or data input/output terminal selected by the switching.

[The action control means switches the switch means according to the attribute parameters read from the storage means. That is, when the selected and read attribute parameter corresponds to a memory card, data is input and output to and from the terminal device via two spare terminals. If the selected attribute parameter corresponds to an IC card, data is input/output to/from the terminal device via the data input/output terminal.

[Example code] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 2 is a diagram for explaining the terminal section of the IC card 30 which is an embodiment of the present invention, and the terminal section is shown enlarged on the right side of the figure. The arrangement of each terminal 31 to 38 is the same as the conventional one. That is, 31 is a power supply terminal to which power supply voltage VCC for the microcomputer, memory, etc. is supplied;
2 is a ground terminal, 33 is a reset signal input terminal, 34 is a program voltage supply terminal, 35 is a clock signal input terminal,
Reference numeral 36 indicates a data input/output terminal, and 37 and 38 indicate reserve terminals, respectively.

The difference from conventional IC cards is that two spare terminals 37 and 38 are configured to be used as data input/output terminals. That is, depending on the selected application, these two spare terminals 37 and 38,
It is configured to input/output data to/from a terminal device 39 by switching either one of the data input/output terminals 36 and the terminal device 39 .

FIG. 3 is a connection diagram when the IC card shown in FIG. 2 and the terminal device are connected. For simplicity, I will be described later.
The 10 unit section is omitted.

The IC card 30 includes a microcomputer 4 in which a processor 40 and a program memory 41 are integrally formed.
Two integrated circuit chips, a chip 2 and a data memory 43 chip, are built-in.

Data input/output between the IC card 30 and the terminal device 39 is performed via either signal lines 44 and 45 or signal line 46. That is, serial data DIN is supplied from the terminal device 39 to the IC card 30 via the signal line 44, and serial data D is supplied from the IC card 30. ut
is supplied to the terminal device 39 via the signal line 45, or serial data DI10 between the terminal device 39 and the IC card 30 is input and output in both directions via the signal line 46. There is.

The configuration is such that a reset signal R8T and a clock signal CLK are supplied from the terminal device 39 to a program memory 41 of the IC card 30 via signal lines 47 and 48, and a power supply voltage Vcc is supplied to the program memory 41 and data memory 43. It is configured to be supplied via a power line 49 and a ground line 50. The configuration is such that the program voltage vPP is supplied from the terminal device 39 to the data memo 3 via the power line 51. Although the figure shows that the power supply voltage vcc is supplied only to the program memory 41, it is actually configured to be supplied to the processor 40 and the data memory 43 as well.

FIG. 1 is a block diagram showing in more detail the internal configuration of the IC card and terminal device in this embodiment.

The IC card 30 is provided with a microcomputer 42 chip and a data memory 43 chip. The chip of the microcomputer 42 includes a program memory 41. An I10 unit section 52 and a processor 40 are provided.

The data memory 43 has data areas such as a memory management section, CDF (common data file), and ADF1 to ADFn (application data files). ADF
Usage attribute information for a plurality of applications is stored in I to ADFn, respectively. As attribute information,
For example, whether data input/output between the IC card 30 and the terminal device 39 is performed using a one-wire system (half-duplex system), that is, a security check, or a two-wire system (full-duplex system). , that is, attribute parameters such as whether or not to perform a security check are included. These attribute information are stored in the IC card 3
Registered when 0 is issued. This data memory 43 corresponds to the storage means of the present application.

The I10 unit section 52 has data input/output sections 54 and 55.
, a transmission path switch 56, and transmission paths 57 to 59 are provided. The data input/output unit 54 is connected to the transmission line switch 56 via a transmission line 58, and the data input/output unit 55 is connected to the transmission line switch 56 via a transmission line 57. As the data input/output section 54, two spare terminals 37 and 38 (Fig. 2) conforming to the ISO standard are used, and as the data input/output section 55, the data input/output terminal 36 (Fig. 2) equivalent to the conventional one is used. ) is used.

The transmission line switch 56 corresponds to the switch means of the present invention, and is connected to the processor 40 via a transmission line 59. This transmission line switch 56 is controlled by the processor 40 to connect one of the transmission lines 57 and 58 to the transmission line 59. If the selected application file includes an attribute parameter for human data output using a two-wire system, the transmission line switch 56 is controlled to connect the transmission line 58 and the transmission line 59.

If the selected application file contains an attribute parameter that inputs and outputs data in one line,
The transmission line switch 56 is controlled to connect the transmission line 57 and the transmission line 59. This transmission path switch 56 includes
For example, although a multiplexer is used, the configuration is not limited to this, and an analog switch may also be used. In the initial state, the transmission path switch 56 connects the transmission path 57 and the transmission path 59 so that data input/output between the IC card 30 and the terminal device 39 is performed in a one-wire manner.

A system control program for the IC card 30 is stored in the program memory 41, and the processor 40 controls data input/output, etc. in accordance with this system control program.

The processor 40 switches the transmission path switch 56 and also performs a security check. That is, if the selected attribute parameter requires a security check, a security check such as password verification is performed, and if a security check is unnecessary, it is not performed. The processor 40 corresponds to the control means of the present application.

In addition, in FIG. 1, the reset signal R8T.

The clock signal CLK, power supply voltage Vcc1 ground GND, program voltage Vpp, etc. are omitted for the sake of simplicity.

The terminal device 39 is also provided with an I10 unit section 53, a data input/output section 6I is connected to a transmission line switch 6θ via a transmission line 63, and a data input/output section 62 is connected to a transmission line switch 6θ via a transmission line 64. It is connected to the road switch 60. The transmission path 65 is connected to a processor (not shown) inside the terminal device 39.

The transmission path switch 60 is switched by a processor in the terminal device 39 in accordance with the state of the transmission path switch 56 of the IC card 30. That is, when the transmission path switch 56 of the IC card 30 connects the transmission path 58 and the transmission path 59, the transmission path switch 60 of the terminal device 39 connects the transmission path 64.
and the transmission line 65 are connected. Therefore, the data transmission path at this time is the transmission path 65, the transmission path switch 60, the transmission path 64, the data input/output section 62, the signal lines 44 and 45,
Data input/output unit 54, transmission line 58, transmission line switch 56
and a transmission line 59. In other words, serial data DIN is sent from the terminal device 39 side to the IC card 30 side via the signal line 44, and serial data D is sent from the IC card 30 side. ut is sent to the terminal device 39 side.

On the other hand, the transmission path switch 56 of the IC card 30
7 and the transmission path 59, the terminal device 39
The transmission line switch 60 connects the transmission line 63 and the transmission line 65. Therefore, the data transmission path at this time is
Transmission line 65, transmission line switch 60. Transmission path 63, data input/output section 61. These are a signal line 46, a data input/output unit 55, a transmission line 57, a transmission line switch 56, and a transmission line 59. In other words, the serial data DI10 is bidirectionally input and output between the terminal device 39 and the IC card 3G.

Next, the operations of the IC card, terminal device, and man-machine interface of this embodiment are shown in FIGS. 1 and 4 to 6.
This will be explained with reference to the figures.

FIG. 4 is a diagram for explaining the operation from when the IC card is inserted into the terminal device until the data input/output format is determined according to the application attribute parameters, and FIG. If the parameter indicates that data input/output is performed in a one-wire manner,
In other words, this is a diagram for explaining the operation when the card functions as a normal IC card, and FIG. FIG. 4 is a diagram for explaining the operation when functioning as

In these figures, the man-machine interface built into the terminal device is shown on the left, the flow of processing by the processor of the terminal device 39 is shown in the center, and the flow of processing by the processor 40 of the IC card 30 is shown on the right. Flow is shown. The arrows shown between the man-machine interface, the terminal device 39, and the IC card 30 are instruction signals and response signals sent and received between them.

As shown in FIG. 4, when the IC card 30 is inserted into the terminal device 39, the processing program of the terminal device 39 starts (step T1), and the power supply voltage VC is input from the terminal device 39 side.
C, a clock signal, a reset signal RESET, etc. are supplied to the IC card 30 side, and the service is started (step T2). As a result, the IC card 30 side enters an activated state, that is, a state in which data processing service can be started, and sends a response signal ANSWERTo RESET to the terminal device 39 side (step 31).

On the other hand, in the next step T3, the terminal device 39 side first sends a signal READ (10) to the IC card 30 side instructing to read data related to card specifications, that is, ID data. As a result, the IC card 3Q side performs reading processing of card specification data such as ID data, and sends the read data to the terminal device 39 (
Step S2).

In step T3, the terminal device 39 receives the IC card 3.
From card specification data such as ID data read from 0, it is determined whether or not the currently inserted IC card 30 can be processed. If it is determined that processing is not possible, an error message NG is sent to the man-machine interface side. If it is determined that the IC card 30 can be processed, the terminal device 39 proceeds to step T4.

In step T4, the instruction signal 5EtECT ADF for selecting an application is sent to the IC card 30.
sent to the side. As a result, the IC card 30 saves the specified application files from ADF1 to ADFn.
(step S3), and check the attribute parameters of the selected ADF (step S4). In the next step S5, it is determined based on the attribute parameters whether data input/output to/from the terminal device 39 is to be performed in a one-wire system.

If YES, that is, if it is a one-wire system, step S
Proceed to step 6 and receive the response signal RESP using a 1-wire transmission line.
is created and sent to the terminal device 39 (step S9).

As described above, since the transmission path switch 56 of the IC card 30 supports the one-wire system in the initial state, the transmission path switch 56 is not switched in this case.

If the result of the determination in step S5 is No, that is, if it is a two-wire system, the process advances to step S7, and the
The transmission path switch 56 of the 10 unit section 52 is switched to the two-wire system to connect the transmission path 59 and the transmission path 58. Next, in step S8, a response signal using a two-wire transmission line is created, and in step S9, the response signal RE
The SP is sent to the terminal device 39 side.

The terminal device 39 receives a response signal RES from the IC card 30 side.
When P is sent back, the process proceeds to the next step T5 unless some error occurs regarding the selection of the application. If an error occurs, an error message NG is sent to the man-machine interface. Step T
5, data input/output is 1 from this response signal RESP.
Determine whether it is performed in a linear manner.

If YES, that is, if it is a one-wire system, the process advances to step T6 in FIG. In this case, the IC card 3G is a normal I
Operates as a C card.

In step T6, when a personal identification number (PIN) and/or key for identity verification is input from the man-machine interface side to the terminal device 39, the key and/or PIN
A signal VERIFY instructing the N verification operation is sent to the IC card 30 side. As a result, the IC card 30 side performs key and/or PIH verification processing, and sends a response signal RESP representing the verification result to the terminal device 39 side (step 510). Identity verification is performed by determining this response signal RESP on the terminal device 39 side. If the identity of the individual cannot be verified, the transaction will not be processed.
NG messages are sent to the man-machine interface side. If the person in question is confirmed, an OK message is sent to the man-machine interface side, and the process proceeds to the next step T7.

In step T7, when transaction information is input from the man-machine interface side, actual transaction processing regarding the selected application is started. This transaction processing is executed by sending a data read instruction signal and/or a data write instruction signal to the IC card 30 side.

When reading data from the data memory 43 of the IC card 30, a data read instruction signal READ is sent to the IC card 30 side. As a result, the IC card 30 side
Read data from the data memory 43 and read the data from the terminal device 39.
(Step Sll). The terminal device 39 side sends a message to the man-machine interface side based on the data from the IC card 30 side.

When writing data to the data memory 43 of the IC card 30, a data write instruction signal WRITE and write data are sent to the IC card 30 side. This allows I
The C card 30 side writes the data to the data memo January 3, and sends a response signal RESP to that effect to the terminal device 39 side (step 512). The terminal device 39 side sends a message to the man-machine interface side based on the data write response signal RESP from the IC card 30 side. When the transaction process is completed, the process proceeds to the next step T8, where the supply of the power supply voltage VCC, clock signal, reset signal, etc. is turned off, the IC card 30 is ejected, and the service is ended.

On the other hand, the result of the determination in step T5 in FIG. 4 is NO.
In the case of 2-wire system, step T9 in FIG.
Proceed to. In this case, the transmission path switch 60 of the terminal device 39
is switched to connect the transmission line 64 and the transmission line 65, so data input/output is performed via the signal lines 44 and 45 and the two spare terminals 37 and 38 of the IC card 30. At this time, the IC card 30 functions as a memory card.

At step T9, actual transaction processing for the selected application is started. This transaction processing is executed by data reading processing and/or data writing processing.

When reading data from the data memory 43 of the IC card 30, an instruction signal READ for reading the data is sent to the IC card 30 side. As a result, IC card 3
The 0 side reads data from the data memo January 3 and sends it to the terminal device 39 side (step 513).

In response to this, the terminal device 39 side sends a positive response ACK for confirmation to the IC card 30 side.

In this way, each time data is read from the data memory 43 of the IC card 30 and sent to the terminal device 39 side, a CK is sent to the IC card 30 side as an acknowledgment. At the end of the data read process, a transmission end signal EOT is sent from the terminal device 39 side to the IC card 30 side.
Transmission end signal E from the IC card 30 side to the terminal device 39 side
This is done by sending back the OT.

When writing data to the data memory 43 of the IC card 30, an instruction signal WRITE for writing data is sent to the IC card 30 side. As a result, IC card 3
The 0 side sends an acknowledgment ACK to the terminal device 39 side.

In response to this affirmative response ACK, the terminal device 39 side sends the write data to the IC card 30 side, and
The 0 side writes this write data to the data memory 43 (step 514). In this way, the terminal device 39
Every time data is sent from the IC card 30 to the IC card 30, an acknowledgment ^C is sent to the terminal device 39 side. The end of the data writing process is signaled by a transmission end signal EO from the terminal device 39 side.
This is done by sending T to the IC card 30 side, and returning a transmission end signal EOT from the IC card 30 side to the terminal device 39 side.

When the data read process and/or write process is completed, the file close signal CLO is sent from the terminal device 39 side.
9E is sent to the IC card 30 side. In response, the IC card 30 side prepares to switch the transmission path switch 56 and sends a transmission end signal EOT to the terminal device 39 (step S15). The IC card 30 then switches the transmission path switch 56 to the one-wire system, that is, to the initial state (step 316). On the terminal device 39 side, in the next step T8 (FIG. 5), the supply of the power supply voltage vcc1 clock signal, reset signal, etc. is turned off, the IC card 30 is ejected, and the service is terminated.

Incidentally, the data transmission process between the IC card 30 and the terminal device 39 shown in FIG. 6 may use a method such as the basic/BSC procedure.

In this way, the IC card of this embodiment inputs and outputs data to and from the terminal device 39 in a one-wire system (half-duplex system) or a two-wire system (full-duplex system) depending on the application selection. conduct. In the case of a one-wire system, data input/output is performed through normal data input/output terminals, and a security check is performed. That is, in this case, it functions as a normal IC card. In the case of a two-wire system, input and output are performed via two spare terminals, and no security check is performed. That is, in this case, it functions as a memory card. In other words, this IC card can be used by switching one card to either an IC card or a memory card.

[Effects of the Invention] As described above in detail, according to the present invention, two spare terminals, a data input/output terminal, and the data input/output terminal and the spare terminal are connected, and by switching, either of these terminals can be connected. a switch means that allows one to be selected; a storage means that stores attribute parameters of a plurality of applications;
The attribute parameters of the selected application connected to the storage means and the switch means are read from the storage means, the switch means is switched according to the read attribute parameters, and the switching means is connected to the selected application through the spare terminal or the data input/output terminal. Since the present invention includes a control means for controlling data input and output, it is possible to realize an IC card that can be used as a memory card or an IC card depending on the application.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing in detail the configuration of an IC card and the configuration of a terminal device, which is an embodiment of the present invention, and FIG.
Figure 3 is a connection diagram showing the connection between the IC card shown in Figure 2 and the terminal device, Figures 4 to 6 are implementations of Figure 1. IC in example
FIG. 7 is an explanatory diagram of the terminal section of a conventional IC card, and FIG. 8 is an explanatory diagram of the terminal section of a conventional memory card. 30...IC card, 36...data input/output terminal, 37.38...spare terminal, 39.
...terminal device, 40 ...processor, 4
1...Program memory, 43...Data memory, 52.53...I10 unit section, 55.60...Transmission line switch. Figure 2, 3rd generation, marine equipment 1, 1, 10 cars): 111-1! Device 41 IC card side

Claims (1)

[Claims] two spare terminals, a data input/output terminal, a switch connected to the data input/output terminal and the spare terminal and capable of selecting one of these terminals by switching, and storing attribute parameters of a plurality of applications. a storage means connected to the storage means and the switch means to read attribute parameters of the selected application from the storage means, switch the switch means according to the read attribute parameters, and select the selected application by the switching; An IC card characterized by comprising: a control means for controlling data input and output via a spare terminal or a data input/output terminal.