JP2019160189A - Portable electronic device and IC card - Google Patents

Abstract

To provide a portable electronic device and an IC card capable of improving convenience.SOLUTION: A portable electronic device according to an embodiment comprises a data storage unit, a data attribute storage unit and a processing unit. The data storage unit stores a file including specific data. The data attribute storage unit stores data identification information for identifying specific data stored by the data storage unit and attribute information on the specific data in association with each other. The processing unit selects the specific data as a processing object according to a processing request for selecting the specific data as the processing object, which has been received from an external device, and transmits a processing response including the attribute information corresponding to the selected specific data, stored in the data attribute storage unit, to the external device.SELECTED DRAWING: Figure 3

Description

  Embodiments described herein relate generally to a portable electronic device and an IC card.

  In recent years, portable electronic devices such as IC cards incorporating IC (Integrated Circuit) chips have been widely used. In a conventional portable electronic device, after an application is selected, a data object (specific data) is designated as current data by, for example, SELECT DATA command processing, and processing is performed on the data object. However, in the conventional portable electronic device, since it is unclear what attribute data is used in the data object, there is a possibility that it cannot be processed appropriately, and convenience may be reduced.

JP 2007-310583 A

  The problem to be solved by the present invention is to provide a portable electronic device and an IC card that can improve convenience.

  The portable electronic device according to the embodiment includes a data storage unit, a data attribute storage unit, and a processing unit. The data storage unit stores a file including specific data. The data attribute storage unit stores data identification information for identifying the specific data stored in the data storage unit in association with attribute information regarding the specific data. The processing unit selects the specific data as a processing target in response to a processing request for selecting the specific data received from the external device as a processing target, and is stored in the data attribute storage unit. A processing response including the attribute information corresponding to the specific data is transmitted to the external device.

1 is an external view showing an example of an IC card according to an embodiment. The figure which shows the hardware structural example of the IC card of embodiment. The block diagram which shows the function structural example of the IC card of embodiment. The figure which shows an example of the data object stored in the file. The figure which shows an example of the data object of the hierarchical structure stored in the file. The figure which shows the example of data which the file management information storage part of embodiment memorize | stores. The figure which shows the example of data which the data attribute memory | storage part of embodiment stores. 5 is a flowchart illustrating an example of processing of a SELECT DATA command of the IC card according to the embodiment. The figure which shows an example of operation | movement of the IC card of embodiment. The figure which shows the modification of the data which the file management information storage part of embodiment memorize | stores.

  Hereinafter, a portable electronic device and an IC card according to embodiments will be described with reference to the drawings.

FIG. 1 is an external view showing an example of an IC card 1 according to the first embodiment.
As shown in FIG. 1, the IC card 1 includes an IC module 10. The IC module 10 includes a contact portion 3 and an IC chip 100 inside.

The IC card 1 is formed, for example, by mounting an IC module 10 on a plastic card base PT (an example of a card body). That is, the IC card 1 includes an IC module 10 and a card base PT in which the IC module 10 is embedded. Further, the IC card 1 can communicate with the external device 2 via the contact unit 3.
In the present embodiment, an IC card 1 will be described as an example of a portable electronic device.

For example, the IC card 1 receives a command (processing request) transmitted from the external device 2 via the contact unit 3 and executes processing (command processing) according to the received command. Then, the IC card 1 transmits a response (processing response) that is an execution result of the command processing to the external device 2 via the contact unit 3.
Here, the external device 2 is a device that communicates with the IC card 1, and is, for example, a terminal device including a reader / writer device.

  The IC module 10 includes a contact portion 3 and an IC chip 100, and is a module that is traded in a form such as COT (Chip On Tape) in which a plurality of IC modules 10 are arranged on a tape. Note that the single IC module 10 that has been cut out and separated from the tape may be referred to as COT.

The contact part 3 has terminals for various signals necessary for the operation of the IC card 1. Here, the terminals of various signals have a terminal for receiving a power supply voltage, a clock signal, a reset signal and the like from the external device 2 and a serial data input / output terminal (SIO terminal) for communicating with the external device 2 .
The IC chip 100 is, for example, an LSI (Large Scale Integration) such as a one-chip microprocessor.

Next, the hardware configuration of the IC card 1 of this embodiment will be described with reference to FIG.
FIG. 2 is a diagram illustrating a hardware configuration example of the IC card 1 according to the present embodiment.
As shown in FIG. 2, the IC card 1 includes an IC module 10 including a contact portion 3 and an IC chip 100. The IC chip 100 includes a UART (Universal Asynchronous Receiver Transmitter) 4, a CPU 5, a ROM (Read Only Memory) 6, a RAM (Random Access Memory) 7, an EEPROM (Electrically Erasable Programmable ROM) 8, and a coprocessor. 9 and. Each component (4 to 9) is connected via an internal bus BS1.

  The UART 4 performs serial data communication with the external device 2 via the SIO terminal described above. The UART 4 outputs data (for example, 1-byte data) obtained by parallel-converting the serial data signal received via the SIO terminal to the internal bus BS1. The UART 4 serially converts the data acquired via the internal bus BS1 and outputs it to the external device 2 via the SIO terminal. For example, the UART 4 receives a command from the external device 2 via the SIO terminal. The UART 4 transmits a response to the external device 2 via the SIO terminal.

  The CPU 5 executes programs stored in the ROM 6 or the EEPROM 8 to perform various processes of the IC card 1. For example, the CPU 5 executes command processing according to the command received by the UART 4 via the contact unit 3.

The ROM 6 is a non-volatile memory such as a mask ROM, for example, and stores a program for executing various processes of the IC card 1 and data such as a command table.
The RAM 7 is a volatile memory such as SRAM (Static RAM), for example, and temporarily stores data used when performing various processes of the IC card 1.

The EEPROM 8 is, for example, an electrically rewritable nonvolatile memory. The EEPROM 8 stores various data used by the IC card 1. The EEPROM 8 stores information used for various services (applications) using the IC card 1, for example.
The coprocessor 9 executes public key encryption processing such as RSA encryption, for example.

Next, a functional configuration example of the IC card 1 according to the present embodiment will be described with reference to FIG.
FIG. 3 is a block diagram showing a functional configuration example of the IC card 1 of the present embodiment.
As shown in FIG. 3, the IC card 1 includes a communication unit 40, a control unit 50, an AP (application) data storage unit 81, a file management information storage unit 82, a data attribute storage unit 83, and a current information storage. Unit 71.
Here, each part of the IC card 1 shown in FIG. 3 is realized by using the hardware of the IC card 1 shown in FIG.

  The communication unit 40 is realized by, for example, the UART 4, the CPU 5, and a program stored in the ROM 6, and transmits and receives commands and responses to and from the external device 2 through the contact unit 3, for example. That is, the communication unit 40 receives a command (processing request) requesting a predetermined process from the external device 2 and transmits a response (processing response) to the command to the external device 2.

  The AP data storage unit 81 (an example of a data storage unit) is a storage unit configured by, for example, the EEPROM 8 and stores application data. The AP data storage unit 81 stores files such as MF (Master File), DF (Dedicated File), and EF (Elementary File) in a hierarchical structure. In the EF, for example, as shown in FIG. 4, data (specific data) in TLV format (Tag-Length-value format) is stored as a data object. That is, the AP data storage unit 81 stores a file including a data object (hereinafter also referred to as DO) corresponding to an application. Here, the data object (DO) is TLV format data in which a tag (Tag), a data length (Length), and a data part (Value) are arranged.

FIG. 4 is a diagram illustrating an example of a data object stored in a file.
The example illustrated in FIG. 4 illustrates an example in which a plurality of DOs (“data object A”, “data object B”,...) Are stored in the EF. Here, “Tag name” is identification information for identifying the tag of DO, and “Len” indicates the length of DO. In addition, “Value” stores the contents (data part) of the DO. Each DO can be selected from the first address of the EF by sequentially searching based on “Len”.

In addition, as shown in FIG. 5, the DO can be stored (nested) in the EF with a hierarchical structure.
FIG. 5 is a diagram illustrating an example of a data object having a hierarchical structure stored in a file.

In the example shown in FIG. 5, “Value” of the DO whose “Tag name” is “60” stores the DO whose “Tag name” is “4D”, and “DO” of “4D” A DO whose name is “61” is stored. The DO of “61” stores the DO whose “Tag name” is “A0”, and the DO of “A0” has the “Tag name” of “80”, “81”,... DO is stored. The “80” DO stores, for example, the cardholder's family name, and the “81” DO stores, for example, the cardholder's name (Given names). For example, the date of birth of the cardholder is stored in the DO.
The DO has different attributes such as a character code depending on the type of stored data. For example, if it is a last name and name, it is kanji data, and if it is a date of birth, it is numerical data.

  Returning to the description of FIG. 3, the file management information storage unit 82 is, for example, a storage unit configured by the EEPROM 8, and stores management information (for example, directory information) for managing the various files described above. The file management information storage unit 82 stores, for example, file identification information such as a file name and file ID in association with the start address of the file (hereinafter referred to as the start address of the file). Here, the head address of the file is, for example, the physical address of the EEPROM 8. In the IC card 1, when selecting each file or executing an access process for each file, each file is selected or each file is selected based on the file management information stored in the file management information storage unit 82. Execute access processing. Here, the access processing refers to processing such as data reading, writing, and updating. An example of data stored in the file management information storage unit 82 will be described with reference to FIG.

FIG. 6 is a diagram illustrating an example of data stored in the file management information storage unit 82 according to the present embodiment.
As illustrated in FIG. 6, the file management information storage unit 82 stores “EFID”, “head address”, “data length”, “Tag name”, and “offset value” in association with each other. Here, “EFID” indicates an EF ID (identifier) and is an example of file identification information for identifying a file. The “start address” is the start physical address of the EF in the AP data storage unit 81 (EEPROM 8), and the “data length” is the length (size) of the EF data. The “Tag name” indicates an ID of a Tag that is a Tag name of DO stored in the EF, and is an example of data identification information. The “offset value” indicates an offset value indicating the leading position of the DO in the EF.

  For example, in the example illustrated in FIG. 6, an EF having “EFID” “0001” indicates that the “start address” is “XXXXXXX” and the “data length” is “0100” (256 bytes). . In addition, DOs with “60” and “4D” as “Tag name” are stored in the EF, and the DO with “60” is stored at the position of “offset value” “XXXX” from the top of the EF. It shows that.

  Returning to the description of FIG. 3 again, the data attribute storage unit 83 is a storage unit configured by, for example, the EEPROM 8. The data attribute storage unit 83 stores a Tag name, which is data identification information for identifying a DO, and attribute information about the DO in association with each other. Here, the attribute information regarding DO is, for example, the type of character code of data stored in the data portion of DO. The types of character codes include, for example, kanji codes, alphabet codes, numerical codes, binary codes (numerical data), and the like, including character codes (encoding methods) such as EUC-JP codes and shift JIS codes. May be. Here, an example of data stored in the data attribute storage unit 83 will be described with reference to FIG.

FIG. 7 is a diagram illustrating an example of data stored in the data attribute storage unit 83 of the present embodiment.
As illustrated in FIG. 7, the data attribute storage unit 83 stores “Tag name” and “attribute information” in association with each other. That is, the data attribute storage unit 83 stores data identification information indicating a tag and “attribute information” related to data stored in the data unit in association with each other. Here, the “attribute information” is attribute information (type information) indicating the type of the character code described above. For example, “01” is associated with a kanji code, “02” is associated with an alphabet code,. Yes.

  For example, in the example illustrated in FIG. 7, a DO whose “Tag name” is “60” indicates that the “attribute information” is “01”, for example, a Chinese character code. A DO whose “Tag name” is “4D” indicates that the “attribute information” is “02”, for example, an alphabet code.

  Returning to the description of FIG. 3 again, the current information storage unit 71 is a storage unit configured by, for example, the RAM 7, and information on the currently designated (selected) MF, DF, EF, DO, and the like. Remember. The current information storage unit 71 stores, for example, “EFID”, “head address”, “data length”, and the like of the currently designated EF. Further, the current information storage unit 71 stores, for example, the currently designated DO “Tag name”, “offset value”, DO head address, and the like.

  The control unit 50 is realized by, for example, the CPU 5, the RAM 7, and the ROM 6 or the EEPROM 8, and comprehensively controls the IC card 1. The control unit 50 includes a file management unit 51 and a command processing unit 52.

  The file management unit 51 manages files in the AP data storage unit 81 based on management information (for example, directory information) stored in the file management information storage unit 82. For example, when executing file access processing, the file management unit 51 searches the management information stored in the file management information storage unit 82 and identifies the storage location of the file.

  The command processing unit 52 (an example of a processing unit) executes various command processing (command processing) in response to a command (processing request) transmitted from the external device 2 to the IC card 1. The command processing unit 52 executes command processing according to a command received from the external device 2 via the communication unit 40, for example. In addition, the command processing unit 52 transmits a response that is a result of the command processing to the external device 2 via the communication unit 40.

  Further, the command processing unit 52 selects (designates) the selected (designated) DO as a processing target in response to a command (processing request) for selecting (designating) the DO received from the external device 2 as a processing target. Then, the command processing unit 52 transmits a response (processing response) including attribute information corresponding to the selected DO stored in the data attribute storage unit 83 to the external device 2.

  Here, the command for selecting DO as a processing target includes, for example, a SELECT DATA command (first command). For example, when the command processing unit 52 receives a SELECT DATA command via the communication unit 40, the command processing unit 52 refers to the file management information storage unit 82 and acquires information regarding the DO specified by the command. The information is stored in the current information storage unit 71 as a current data object (specific data to be processed at present). Further, the command processing unit 52 refers to the data attribute storage unit 83, acquires attribute information corresponding to the DO specified by the command, and uses a response including the acquired attribute information as a response to the SELECT DATA command. Then, the data is transmitted to the external device 2 via the communication unit 40. The command processing unit 52 transmits a response including type information indicating the type of character code as the attribute information to the external device 2.

In addition, the command processing unit 52 selects the processing target according to the command for comparing the comparison data received from the external device 2 with the DO selected as the processing target (data stored in the data portion of the DO). The DO is compared with the comparison data, and a response including the comparison result is transmitted to the external device 2.
Here, the command for comparing the comparison data with the DO selected as the processing target includes, for example, a COMPARE command (second command).

  For example, when the command processing unit 52 receives a COMPARE command via the communication unit 40, the command processing unit 52 refers to the current information storage unit 71 to obtain information on the DO (current data object) currently selected for processing. get. Based on the acquired information, the command processing unit 52 acquires data stored in the data portion of the DO, and compares the data with comparison data included in the COMPARE command. The command processing unit 52 transmits a response including the comparison result as a response to the COMPARE command to the external device 2 via the communication unit 40. The comparison result is, for example, that the comparison data is greater than or equal to the DO data, greater than the DO data, equal to the DO data (equal), less than the DO data, less than the DO data, and the like.

Next, the operation of the IC card 1 of this embodiment will be described with reference to the drawings.
FIG. 8 is a flowchart showing an example of SELECT DATA command processing of the IC card 1 of this embodiment.

  As shown in FIG. 8, in a state where the external device 2 and the IC card 1 are connected via the contact part 3 and the IC card 1 is activated, the IC card 1 determines whether or not a command has been received. (Step S101). That is, the communication unit 40 of the IC card 1 determines whether or not a command is received from the external device 2 via the UART 4. When the command is received (step S101: YES), the communication unit 40 proceeds with the process to step S102. Moreover, the communication part 40 returns a process to step S101, and repeats the process of step S101, when the command is not received (step S101: NO).

  In step S102, the command processing unit 52 of the IC card 1 determines whether or not the received command is a SELECT DATA command. For example, the command processing unit 52 determines whether the command is a SELECT DATA command based on “CLA” and “INS” in the received command message. If the received command is a SELECT DATA command (step S102: YES), the command processing unit 52 advances the processing to step S103. If the received command is not a SELECT DATA command (step S102: NO), the command processing unit 52 advances the process to step S106.

  In step S103, the command processing unit 52 sets the designated DO as current data (current data object). The command processing unit 52 refers to the file management information storage unit 82, acquires information about the designated DO, and stores the acquired information in the current information storage unit 71 as a current data object.

Next, the command processing unit 52 acquires the attribute information of the designated DO (step S104). The command processing unit 52 refers to the data attribute storage unit 83 and acquires attribute information corresponding to the designated DO.
Next, the command processing unit 52 transmits a response including the acquired attribute information (step S105). After the process of step S105, the command processing unit 52 returns the process to step S101.

In step S106, the command processing unit 52 executes another command process.
Next, the command processing unit 52 transmits a response corresponding to the executed command processing (step S107). After the process of step S107, the command processing unit 52 returns the process to step S101.

Next, an example of the operation of the IC card 1 of the present embodiment will be described with reference to FIG.
FIG. 9 is a diagram illustrating an example of the operation of the IC card 1 of the present embodiment. An example of the operation shown in this figure shows a case where the COMPARE command is executed after selecting EF and DO to compare the comparison data with the data stored in DO.

  As shown in FIG. 9, when the external device 2 and the IC card 1 are connected via the contact portion 3 and the IC card 1 is activated, the IC card 1 performs ATR (Answer To Reset) on the external device 2. (Step S201).

Next, the external device 2 transmits a SELECT command designating EF to the IC card 1 (step S202).
Next, the command processing unit 52 of the IC card 1 sets the designated EF as the current EF (step S203). That is, the command processing unit 52 stores information on the designated EF in the current information storage unit 71 as the current EF.

  Next, the IC card 1 transmits a response to the SELECT command to the external device 2 (step S204). Here, the IC card 1 transmits a response including “9000” (normal end) as SW (Status Word).

Next, the external device 2 transmits a SELECT DATA command designating DO to the IC card 1 (step S205).
Next, the command processing unit 52 of the IC card 1 sets the designated DO as current data (step S206). That is, the command processing unit 52 stores information on the designated DO in the current information storage unit 71 as current data (current data object). In addition, the command processing unit 52 acquires attribute information corresponding to the designated DO from the data attribute storage unit 83.

  Next, the IC card 1 transmits a response to the SELECT DATA command to the external device 2 (step S207). Here, the IC card 1 transmits a response including “9000” (normal end) and attribute information as SW.

Next, after confirming the attribute information, the external device 2 transmits a COMPARE command for comparing the comparison data with the data stored in the DO to the IC card 1 (step S208).
Next, the command processing unit 52 of the IC card 1 performs data comparison (step S209). That is, the command processing unit 52 compares the data stored in the DO set in the current data (current data object) with the comparison data.

  Next, the IC card 1 transmits a response to the COMPARE command to the external device 2 (step S210). Here, the IC card 1 transmits a response including “9000” (normal end) and the comparison result as SW.

  As described above, the IC card 1 (portable electronic device) according to the present embodiment includes the AP data storage unit 81 (data storage unit), the data attribute storage unit 83, and the command processing unit 52 (processing unit). Prepare. The AP data storage unit 81 stores a file including specific data (for example, DO: data object). The data attribute storage unit 83 stores data identification information for identifying specific data stored in the AP data storage unit 81 in association with attribute information regarding the specific data. The command processing unit 52 selects specific data as a processing target (current data) in response to a processing request (for example, a SELECT DATA command) for selecting a data object received from the external device 2 as a processing target, and stores data attributes. A process (first command process) for transmitting a process response (response) including attribute information corresponding to the selected specific data stored in the unit 83 to the external device 2 is executed.

Thereby, since the IC card 1 according to the present embodiment can know what attribute data is used for the specific data (DO), it can appropriately process the specific data. . Therefore, the IC card 1 according to the present embodiment can improve convenience.
The IC card 1 according to the present embodiment can input appropriate comparison data based on attribute information when comparing DO data, for example. In addition, the IC card 1 according to the present embodiment can appropriately display the attribute data when displaying the DO data on the screen, for example.

In the present embodiment, the attribute information includes type information indicating the type of character code. The command processing unit 52 transmits a response including type information as attribute information to the external device 2.
As a result, the IC card 1 according to the present embodiment can know the type of the character code of the specific data in advance, and can appropriately perform the processing.

In the present embodiment, the specific data is a TLV format data object in which a tag, a data length, and a data part are arranged. The data attribute storage unit 83 stores data identification information indicating a tag and attribute information related to data stored in the data unit in association with each other.
Thereby, the IC card 1 according to the present embodiment can know the attribute information in advance for the data object in the TLV format, so that the convenience can be improved.

Further, in the present embodiment, the command processing unit 52 performs processing according to a processing request (for example, a COMPARE command) for comparing the comparison data received from the external device 2 with specific data selected as the processing target. The specific data selected in step (b) is compared with the comparison data, and a processing response (response) including the comparison result is transmitted to the external device 2 (second command processing).
Thereby, since the IC card 1 according to the present embodiment compares the appropriate comparison data corresponding to the attribute information with the data stored in the specific data inside the IC card 1, the confidentiality of the specific data The data stored in the specific data can be confirmed appropriately while ensuring the above. That is, the external device 2 can transmit appropriate comparison data by knowing the attribute information in advance, and can prevent a comparison failure due to a mismatch of attribute information. Therefore, the IC card 1 according to the present embodiment can further improve convenience.

  In each of the above embodiments, the file management information storage unit 82 and the data attribute storage unit 83 have been described as different storage units. For example, as shown in FIG. 10, information stored in the data attribute storage unit 83 is stored. May be included in the file management information storage unit 82. That is, the file management information storage unit 82 may have a function as a data attribute storage unit.

  In FIG. 10, the file management information storage unit 82 associates “EFID”, “head address”, “data length”, “Tag name”, “offset value”, and “attribute information”. Remember. In this case, when the command processing unit 52 receives the SELECT DATA command, the command processing unit 52 refers to the file management information storage unit 82 instead of the data attribute storage unit 83, and attribute information corresponding to the DO specified by the command. And a response including the acquired attribute information is transmitted to the external device 2.

  In each of the above embodiments, an example of applying to a data object has been described as an example of specific data. For example, instead of a data object, it is applied to data of other data formats such as a record and a data string. May be.

  In each of the above embodiments, the IC card 1 has been described as communicating with the external device 2 via the contact unit 3. However, the IC card 1 communicates with the external device 2 via a contactless interface using a coil or the like. You may comprise.

  In each of the above embodiments, the IC card 1 includes the EEPROM 8 as a rewritable nonvolatile memory. However, the present invention is not limited to this. For example, the IC card 1 may include a flash memory, a FeRAM (Ferroelectric Random Access Memory), etc. instead of the EEPROM 8.

  In each of the above-described embodiments, the example in which the IC card 1 is used as an example of the portable electronic device has been described. However, the present invention is not limited to this. The portable electronic device may be, for example, an electronic device such as an IC tag that is not a card shape.

  According to at least one embodiment described above, the data attribute storage for storing the data identification information for identifying the data object (specific data) stored in the AP data storage unit 81 and the attribute information about the data object in association with each other In response to a processing request for selecting a data object received from the unit 83 and the external device 2 as a processing target, the data object is selected as a processing target, and the selected data object stored in the data attribute storage unit 83 is selected. Convenience can be improved by having the command processing unit 52 that transmits the processing response including the corresponding attribute information to the external device 2.

The above embodiment can be expressed as follows.
A data storage unit for storing a file including specific data;
A data attribute storage unit for storing the data identification information for identifying the specific data stored in the data storage unit and the attribute information related to the specific data;
A storage unit for storing information;
A hardware processor for executing a program stored in the storage unit,
The hardware processor executes the program,
In response to a processing request for selecting the specific data received from the external device as a processing target, the specific data is selected as a processing target and stored in the data attribute storage unit. A portable electronic device configured to transmit a processing response including the attribute information corresponding to the external device to the external device.

Note that a program for realizing the function of each component included in the IC card 1 in the embodiment is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. The processing in each configuration included in the IC card 1 described above may be performed. Here, “loading and executing a program recorded on a recording medium into a computer system” includes installing the program in the computer system. The “computer system” here includes an OS and hardware such as peripheral devices.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... IC card, 2 ... External device, 3 ... Contact part, 4 ... UART, 5 ... CPU, 6 ... ROM, 7 ... RAM, 8 ... EEPROM, 9 ... Coprocessor, 10 ... IC module, 40 ... Communication part, DESCRIPTION OF SYMBOLS 50 ... Control part 51 ... File management part 52 ... Command processing part 71 ... Current information storage part 81 ... AP data storage part 82 ... File management information storage part 83 ... Data attribute storage part 100 ... IC chip , BS1 ... Internal bus, PT ... Card base material

Claims (5)

A data storage unit for storing a file including specific data;
A data attribute storage unit for storing the data identification information for identifying the specific data stored in the data storage unit and the attribute information related to the specific data;
In response to a processing request for selecting the specific data received from the external device as a processing target, the specific data is selected as a processing target and stored in the data attribute storage unit. A portable electronic device comprising: a processing unit that transmits a processing response including the attribute information corresponding to to the external device. The attribute information includes type information indicating the type of character code,
The portable electronic device according to claim 1, wherein the processing unit transmits the processing response including the type information as the attribute information to the external device. The specific data is a data object in TLV format in which a tag, a data length, and a data part are arranged,
The portable electronic device according to claim 1 or 2, wherein the data attribute storage unit stores the data identification information indicating the tag in association with the attribute information related to data stored in the data unit. apparatus. The processing unit compares the comparison data received from the external device with the specific data selected as the processing target in response to a processing request for comparing the specific data selected as the processing target. The portable electronic device according to any one of claims 1 to 3, wherein the portable electronic device compares data and transmits a processing response including the comparison result to the external device. A data storage unit for storing a file including specific data;
A data attribute storage unit for storing the data identification information for identifying the specific data stored in the data storage unit and the attribute information related to the specific data;
In response to a processing request for selecting the specific data received from the external device as a processing target, the specific data is selected as a processing target and stored in the data attribute storage unit. An IC module comprising: a processing unit that transmits a processing response including the attribute information corresponding to the external device;
An IC card comprising: a card body in which the IC module is embedded.

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