JP3636989B2 - Data processing apparatus, integrated circuit, IC card, data processing method, and data processing program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data processing apparatus, an integrated circuit, an IC card, a data processing method, and a data processing program that can share data managed by different OSs (operating systems).
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an IC card that is equipped with a memory for storing data in a card and can read and write personal authentication information, point information at the time of product purchase, and the like has been spreading.
As an IC card, an electric connection between an IC card reader / writer (hereinafter referred to as a card R / W), which is an external device for transmitting / receiving information to / from the IC card, and an IC card is electrically connected. Contact IC cards performed via contact-type interfaces such as terminals and non-contact IC cards that perform data transmission / reception between the card R / W and IC card via non-contact interfaces such as antennas capable of transmitting and receiving radio waves Are known.
Examples of the contact IC card include a credit card and a bank cash card. On the other hand, examples of the non-contact IC card include a commuter pass that passes through an automatic ticket gate.
[0003]
In recent years, hybrid IC cards have been developed that further expand the usage of IC cards by mounting the functions provided by contact IC cards as described above and the functions provided by non-contact IC cards on one IC card. Has been.
As an example of this hybrid IC card, there is an employee ID card that exchanges employee information with an external device through a contact type interface, and performs entry / exit through a non-contact type interface.
[0004]
[Problems to be solved by the invention]
The contact IC card and the non-contact IC card described above are each mounted with a separate OS corresponding to the interface.
Here, when sending / receiving data to / from an external device via a non-contact type R / W, it is possible to handle only the data in the memory area of the non-contact type interface application and its management. In the case where data is transmitted / received to / from an external device via the type R / W, it is possible to handle only the application of the contact type interface and the data in the memory area under its management.
[0005]
When the functions of two types of cards are to be mounted on one card like the hybrid IC card described above, an application operating on each OS does not transmit / receive data to / from an application operating on another OS. Since a firewall is interposed so as not to be used, there is a problem that data cannot be shared between an application corresponding to the contactless interface and an application corresponding to the contact interface.
[0006]
The present invention has been made in view of such circumstances. The functions of a contact IC card and the function of a non-contact IC card are mounted on one semiconductor integrated circuit and linked to data managed by different OSs. By providing the link information for the OS under the OS, it is possible to provide a data processor, integrated circuit, IC card, data processing method, and data processing program with excellent versatility that enables sharing of data between different OSs. For the purpose.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is managed by a plurality of operating systems and a single operating system respectively provided corresponding to a plurality of communication means for communicating with corresponding external devices. Information Requesting processing from an external device that communicates with a communication device corresponding to the one operating system for data managed by another operating system Information Provided is a data processing device comprising: link information; and a control unit that performs processing on the data based on the link information when the processing request for the data is received from the external device. .
The above-mentioned data means all data under the management of each OS, including file data, application programs, and the like.
The operating system preferably conforms to the ISO / IEC7816 series regulations.
[0008]
Also, the data processing device Has storage means for storing at least information managed by one operating system and data managed by another operating system in the plurality of operating systems, and the control means communicates with the one operating system. When there is a processing request for the data from an external device communicating with the device, using the link information, The predetermined processing request is converted into a processing request that can be recognized by the other operating system. Have function It is characterized by that.
[0009]
Also, the data processing device Comprises storage means for storing at least information managed by one operating system and data managed by another operating system in the plurality of operating systems, The control means includes When there is a processing request for the data from an external device communicating with the communication device corresponding to the one operating system, A file manager or a memory manager of one operating system that sends the predetermined processing request as a processing request that can be recognized by the other operating system based on the link information, and a processing request received from the one file manager And a file manager or a memory manager of another operating system that performs predetermined processing.
[0010]
In the data processing apparatus, the link information includes an identification number of a directory file managed by another operating system.
[0011]
In the data processing apparatus, the link information includes attribute information of a directory file managed by another operating system.
[0012]
In order to achieve the above object, the present invention provides an integrated circuit in which the data processing device according to any one of claims 1 to 5 is mounted.
The integrated circuit is preferably in SIM (Subscriber Identification Module) format. Thus, the present invention can be applied to various media, and an integrated circuit with more versatility can be provided.
[0013]
To achieve the above object, the present invention provides an integrated circuit according to claim 6, non-contact type communication means for transmitting / receiving data to / from the outside by non-contact, and contact type communication for transmitting / receiving data to / from the outside by contact And an IC card.
[0014]
In order to achieve the above object, the present invention provides a plurality of operating systems respectively provided corresponding to a plurality of communication means for communicating with corresponding external devices. Storage means for storing at least information managed by one operating system and data managed by another operating system in the plurality of operating systems, and when there is a processing request for the information or data from the external device Control means for processing the information or data; A data processing method in a data processing apparatus comprising: information managed by one operating system, and communication corresponding to the one operating system for data managed by another operating system Link information that is information for requesting processing from an external device communicating with the means is sent by the one operating system. In the storage means Memory Make And when there is a processing request for the data from the external device, the one operating system and the other operating system may perform the processing on the data based on the link information. of Processing , Let the control means do A data processing method comprising: a process.
[0015]
In order to achieve the above object, the present invention provides a plurality of operating systems respectively provided corresponding to a plurality of communication means for communicating with corresponding external devices. Storage means for storing at least information managed by one operating system and data managed by another operating system in the plurality of operating systems, and when there is a processing request for the information or data from the external device Control means for processing the information or data; A data processing program in a data processing apparatus comprising: information managed by one operating system, corresponding to the one operating system for data managed by another operating system Link information, which is information for requesting processing from an external device communicating with the communication means, is sent to the one operating system. Is said storage means And when there is a processing request for the data from the external device, the one operating system and the other operating system are configured for the data based on the link information. of Processing , Let the control means do A program for causing a computer to execute the process is provided.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
<< Schematic internal configuration of semiconductor integrated circuit >>
FIG. 2 is a block diagram showing a schematic configuration of a semiconductor integrated circuit mounted on an IC card according to an embodiment of the present invention. As shown in the figure, the semiconductor integrated circuit 1 according to this embodiment includes a CPU 10 that controls the entire IC card, a ROM (Read Only Memory) 12 that stores fixed data such as a program such as a boot program, An EEPROM (Electronically Erasable Programmable ROM) 14 capable of writing and erasing data, a RAM (Random Access Memory) 16 for temporarily storing various data, and an IC card reader / writer (hereinafter referred to as a card R / W). A contact type interface (I / F) 18A for transmitting and receiving power and data, a non-contact type interface (I / F) 18B, and the like.
[0017]
The contact-type interface 18A transmits and receives data between a power supply terminal Vcc and a ground terminal GND for supplying power from the outside, a reset signal terminal RST for receiving a reset signal from the outside, and the outside. I / O terminal I / O and a clock terminal CLK for receiving a system clock signal from the outside. Each of the metal terminals described above is arranged on the surface of the IC card. By electrically contacting these terminals with a contact card R / W which is an external device, power supply and data transmission / reception are performed. I do.
[0018]
On the other hand, the non-contact type interface 18B is composed of a coiled antenna formed inside the IC card and an RF circuit, and the non-contact type card R / W, which is an external device, is connected to the non-contact type card R / W via the antenna and generates electric power. Supply and send / receive data. According to the non-contact type interface 18B, since the IC card does not contact the card R / W, there is no wear part, the life of the card R / W and the IC card is prolonged, and an antenna is installed inside the IC card. Therefore, there are advantages that the front and back surfaces of the card can be used for printing, and that a plurality of IC cards can be read and written almost simultaneously.
[0019]
The ROM 12 includes an OS (hereinafter referred to as a contact-side OS) corresponding to the contact type interface 18A and an OS (hereinafter referred to as a non-contact side OS) corresponding to the non-contact type interface 18B. Are stored).
The EEPROM 14 stores an application, authentication key information, data, and the like that operate on the contact-side OS and / or the non-contact-side OS.
Moreover, as an application which operate | moves on contact side OS, the application which concerns on finance, such as a credit payment application, is mentioned as an example. In these applications, personal authentication is highly important, and it is necessary to ensure high reliability in terms of data transmission / reception. Therefore, it is appropriate to send / receive data by contacting the terminals.
[0020]
On the other hand, examples of applications that operate on the non-contact OS include a point application that manages points generated at the time of payment, an application related to an automatic ticket gate, and the like.
The data sent and received via the non-contact interface 18B is generally less important for personal authentication than the data sent and received via the contact interface 18A described above, and the speed of data sending and receiving is emphasized. The above-mentioned application is targeted.
[0021]
<File structure>
Next, FIG. 1 shows a hierarchical structure of a file in one embodiment of the present invention. Here, the symbol F1 indicates the file structure under the contact-side OS, and the symbol F2 indicates the file structure under the non-contact-side OS. Note that the file structure here conforms to the specifications of the original international standard ISO / IEC7816 series.
[0022]
In the file structure F1 under the contact side OS, the MF (Master File) is a file located at the top of the file structure under the contact side OS, and is shown in the following PSE (Payment System Environment), DF (Dedicated File), And EF (Elementary File) are configured under the MF.
Note that the file structure under the contact-side OS is a file structure compliant with EMV. Here, EMV is a common standard for IC cards and terminals jointly established by three companies, VISA International, MasterCard International, and Europay International, in order to promote the use of financial IC cards. By conforming to this standard, in the case of an EMV-compliant IC card, normal handling is guaranteed in any EMV-compliant terminal.
[0023]
The PSE is an environment maintenance file that manages the operating environment of a so-called payment application used for financial purposes such as a payment system. Various applications related to finance are managed under the control of the PSE.
[0024]
The DF corresponds to a set of EFs under the same application, and has a file number, attribute information, and the like of the EFs under the control.
The EF is a set of data units or records having the same file identifier, and includes a WEF (Working EF) that stores application programs, data, and the like, and an IEF (Internal EF) that stores an authentication key and encryption. being classified.
In the file structure F1, a bundle of DFs and EFs under the DFs can be regarded as one application file.
Further, directory information is attached to each of the files (MF, PSE, DF, EF), and the file structure formed under the directory information can be recognized and managed.
[0025]
On the other hand, the payment application described above is an application that operates only under the contact-side OS, and cannot operate under the non-contact-side OS. Therefore, in the file structure F2 under the non-contact-side OS, the payment application is A supervising PSE is not required. Therefore, the file configuration F2 under the non-contact side OS is a file configuration in which PSE is excluded from the file configuration F1 described above.
[0026]
A link directory R_DIR is provided in the file structures F1 and F2 under the contact OS and non-contact OS described above.
The link directory R_DIR is configured under a different OS corresponding to each of the above-described DFs. For example, the link directory R_DIR has a one-to-one correspondence with each DF existing under the contact-side OS. Similarly, a link directory R_DIR is provided, and similarly, a link directory R_DIR corresponding to each DF existing under the non-contact side OS is provided under the contact side OS. Each link directory R_DIR includes link information to the corresponding DF, and enables transmission of commands between OSs.
[0027]
"file organization"
Next, the configuration of one application (hereinafter referred to as an application file) including the above-described DF, EF, and directory information, and the configuration of the link directory R_DIR will be described with reference to FIGS. Note that MF, PSE, DF, and EF are stored in the EEPROM shown in FIG.
[0028]
FIG. 3 is a diagram showing the structure of an application file composed of DF, EF, and directory information DR. In the figure, the directory information DR stores information such as a file number for identifying a DF, a file position, key information such as verification or mutual authentication, access conditions, and attributes.
The access condition is information indicating which commands are allowed when a write or read command is generated by an external device or another application. For example, if “READ ONLY” information is described in this access condition, it means that the read is only and writing is impossible.
Note that the DF has information such as the file position of the EF configured under the DF, that is, the file position and attribute of each EF configuring the application file.
Each EF stores application file programs, data, authentication key data, etc., divided into predetermined bytes.
[0029]
Next, the structure of the link directory R_DIR will be described with reference to FIG. In the figure, the directory information includes a file number for identifying the link directory, location information, attributes of the file, and a file number of a DF that has a one-to-one correspondence with the link directory as a link destination file number. Has been described.
[0030]
In addition, an access condition is described as one of the attribute information. This access condition indicates the attribute of the link destination DF. If the attribute of the link destination DF is write-only, the write-only information is described as the access condition. In addition, by describing information related to security control and command control as an access condition, it is possible to perform access control to the DF corresponding to the link directory by referring to the link directory.
As described above, since the file number information under the different OS is described in the link directory R_DIR, the command can be transferred between the different OSs based on the file number.
[0031]
As shown in FIG. 4, the link directory is shown to be composed of the above-described directory information, DF, and EF. However, in the present embodiment, directory information is recorded as a link directory, and the illustrated DF and EF are conceptual, and actually exist with a capacity of 0 bytes.
[0032]
<Operation of IC card>
Next, the operation of the IC card according to the first embodiment of the present invention will be described with reference to FIGS.
Hereinafter, in describing the operation of the IC card according to the present embodiment, the IC card 1 includes a credit application conforming to the EMV under the contact side OS as shown in FIG. Suppose you have an application. In addition, information processing terminals such as a host computer and a POS system that perform data transactions with this IC card have a card R / W as an interface with the IC card, and also hold a credit application and a point application as applications. doing.
[0033]
A data communication process performed between the IC card and the information processing terminal when the IC card user performs a commercial transaction by credit under the above-described conditions will be described.
[0034]
First, by inserting the IC card into the contact type card R / W of the information processing terminal, power is supplied from the information processing terminal side via the Vcc terminal of the contact type interface 18A (step SP1 in FIG. 6). The IC card starts up and executes a boot program written in the ROM 12 to start a predetermined process, for example, a contact side OS which is an operating system corresponding to the contact type interface.
[0035]
When the IC card is activated, a reception process for receiving commands under the contact side OS is performed (step SP2). When the preparation for receiving the command from the information processing terminal side is completed, the information processing terminal is notified of this.
Next, the information processing terminal sends a point application file selection command to the IC card (step SP3). At this time, in the issued command header, the file number of the DF requesting access, that is, the file number indicating the point application is described.
[0036]
When the contact-side OS of the IC card analyzes the received command and recognizes that the received command is an application selection, a file manager that is a part of the contact-side OS is activated. The contact-side file manager controls access to the file identified by the file number for which the selection request has been made by referring to the file number written in the header part of the command and the MF directory information of the contact-side OS. Do. As a result, the file manager accesses the link directory R10 existing under the contact-side OS (step SP4).
[0037]
Subsequently, when the contact-side file manager recognizes that the application instructed to be selected from the information processing terminal does not exist under the contact-side OS by referring to the directory information of the link directory R10, it is described in the link directory R10. The link destination file number and the command received from the information processing terminal are sent to the non-contact side OS (step SP5).
[0038]
Here, the file number described as the link destination file number in the link directory is described in a form similar to the form of the file number managed under the non-contact side OS that is the link destination. That is, in the link directory, the file number is described in a form that can be identified by the file manager of the non-contact side OS that is the link destination. Therefore, the file manager on the contact side receives this file number from the non-contact side file manager. By passing, it becomes possible to pass information between the OSs. Further, since various commands transmitted from the information processing terminal are commands that are compatible between the contact-side OS and the non-contact-side OS, processing such as command data conversion becomes unnecessary. Therefore, in the above case, the contact-side file manager may pass the command received from the information processing terminal to the link-destination non-contact-side file manager without performing data processing.
[0039]
When the file manager which is a part of the non-contact side OS receives the link destination file number from the contact side OS, it accesses the application file identified by this file number (step SP6). As a result, the point application program managed by the point application file is read (step SP7).
[0040]
Subsequently, when a data read command under the point application management is sent from the information processing terminal to the IC card via the connection type card R / W (step SP8), the file manager on the non-contact side through the above-described path. The data read command under the point application management is transferred to. As a result, the file manager on the non-contact side accesses the point application file, reads data such as point information, amount, and usage count from the memory area managed by this application file, and sends this data to the contact-side OS. . With this process, the contact-side OS sends out the received data via the contact-type interface 18A (step SP9). As a result, the information processing terminal can acquire information such as points currently held by the IC card via the contact card R / W.
[0041]
When the information processing terminal receives the received point information, the information processing terminal calculates the number of points according to the current payment amount by starting the point application provided by the information processing terminal, and reads out the calculated number of points and the IC card. The accumulated point number is calculated by adding the obtained point number (step SP10). When the processing related to such points is completed, data such as the calculated number of points is stored in a predetermined memory area (step SP11).
[0042]
When the above-described processing ends, processing related to credit settlement is subsequently executed.
First, the information processing terminal outputs a credit application selection command from the contact card R / W (step SP21 in FIG. 7). When the IC card receives the command via the contact type interface 18A, the file manager of the contact type OS accesses the credit application file under the contact side OS according to the designated command, and the memory area under the credit application management A program or the like is read out from the program and executed (step SP22). As a result, various data transmission / reception is performed between the IC card and the information processing terminal according to the credit application program, so that various processes related to credit settlement such as data authentication, card owner verification, terminal risk management, etc. are performed. (Step SP23). When the credit settlement process is completed and the transaction is completed (step SP24), the information processing terminal is notified of this.
[0043]
When the transaction is established by performing the credit settlement process described above, the information processing terminal reads the point information stored in its own memory in step SP10 in FIG. 6, and stores this point information under a predetermined application under the point application file management. In order to write to the memory area, the following processing is performed.
First, the information processing terminal issues a point application selection command to the IC card (step SP41 in FIG. 8).
When such a command is received, a file manager that is a part of the contact-side OS is activated. The contact-side file manager controls access to the file identified by the file number for which the selection request has been made by referring to the file number written in the header part of the command and the MF directory information of the contact-side OS. Do. As a result, the contact-side file manager accesses the link directory R10 existing under the contact-side OS (step SP42).
[0044]
Subsequently, the contact-side file manager refers to the link destination file number described in the directory information of the link directory R10 to confirm that the application requested for selection from the information processing terminal does not exist under the contact-side OS. When recognized, the link destination file number described in the link directory R10 and the selection command are transmitted to the non-contact side OS (step SP43).
[0045]
When receiving the link destination file number from the contact side file manager, the non-contact side file manager accesses the application file identified by this file number (step SP44). As a result, the point application program managed by the point application file is read and activated (step SP44). When the point application is activated, the non-contact side file manager notifies the contact side OS of activation of the point application. Thereby, the contact-side OS transmits data for notifying activation of the point application to the information processing terminal via the contact-type interface 18A.
[0046]
Subsequently, the information processing terminal reads the point information stored in its own memory area in step SP10 of FIG. 6, and issues a command for writing this point information to a predetermined memory area managed by the point application.
When a data write command under point application management is sent from the information processing terminal to the IC card, the file manager on the contact side recognizes the file recognized for writing with the designated file number, ie, the file under the contact side OS. The link directory is accessed (step SP47).
[0047]
Then, referring to the attribute described in the directory information of the link directory and if the access condition is writable, the file manager of the contact-side OS determines the link destination file number described in the directory information of the link directory R10. Then, the command to write the point information in the memory area under the file number and the point information received from the information processing terminal are sent to the file manager of the non-contact side OS (step SP48).
[0048]
With this process, the file manager on the non-contact side accesses the point application file identified by the received file number and writes the point information in the memory area under the point application (step SP49).
[0049]
The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design and the like within the scope not departing from the gist of the present invention.
For example, in the above-described embodiment, the information processing terminal that transmits and receives data to and from the IC card includes the card R / W, holds various applications held by the IC card, and directly contacts the IC card. Although various forms of processing are executed, the present invention is not limited to this. For example, various applications can be executed by connecting an IC card and an information processing terminal via a network.
In this case, an apparatus for transmitting and receiving data needs to be interposed between the IC card and the information processing terminal. In this intervening device, it is necessary to provide a card R / W for performing data transmission / reception with the IC card and a communication I / F for performing data communication with the information processing terminal via the network. Through such a device, data communication between the IC card and the information processing terminal via the network becomes possible.
[0050]
In the above-described embodiment, the link directory is provided corresponding to the DF of each file structure. However, the link directory may be provided corresponding to any file, for example, corresponding to MF. It is also possible to create a link directory, or a link directory may be created so as to correspond to the EF under each DF. If a link directory is created corresponding to each MF, the link directory is unique under each OS.
[0051]
In this embodiment, a link directory is provided for each of the contact-side OS and the non-contact-side OS to enable two-way communication. However, the present invention is not limited to this, and a link directory is provided for one of the OSs so that only one-way communication is possible. May be made possible. At this time, providing link information from the contact side to the non-contact side and enabling access from the contact side to the non-contact side is more effective than enabling access from the non-contact side to the contact side. .
Here, since it is stipulated that financial settlement functions such as credit cards represented by data transmitted and received via a contact-type interface comply with the EMV specification, the interface for data transmission and reception related to financial settlement and the like is EMV. It is limited to the contact side interface by the ISO / IEC7816 series that the specification assumes. In this way, in data transactions related to financial settlement, it is assumed that access from the non-contact to the contact side is often restricted due to business substance, and therefore, access between OSs can be performed only in one-way communication. In this case, it is preferable to access from the contact side to the non-contact side.
[0052]
【The invention's effect】
As described above, according to the data processing device of the present invention, a plurality of operating systems respectively provided corresponding to a plurality of communication means for communicating with corresponding external devices, and a single operating system. For data managed and managed by another operating system, there is link information for requesting processing from an external device that communicates with a communication device compatible with one operating system, and there is a processing request for data from the external device. Control means for processing the data based on the link information, the file manager that operates individually for each OS can be linked without using an external device. Can be shared between multiple OSs . As a result, various processing requests for various data in OS management can be accepted regardless of the attributes of the external device, so that the processing content accepted for the external device can be significantly expanded. The service can be provided in various usage forms.
[0053]
Furthermore, by mounting the above-described integrated circuit on an IC card having both a non-contact type interface and a contact type interface, it is possible to use an OS corresponding to the contact type interface and an OS corresponding to the non-contact type interface. And sharing of data can be realized.
This makes it possible to request processing of data managed by each OS regardless of the interface attributes, and therefore, it is possible to realize an IC card with extremely high versatility and convenience.
Further, since two OSs and the like are mounted on one semiconductor chip, the cost can be reduced.
[0054]
Further, by making this integrated circuit into a SIM format, various media having both a non-contact type interface and a contact type interface for external devices and / or internal devices, such as mobile phones, PHS (Personal Handy-phone System). ), PDA (Personal Digital Assistants) and other portable communication terminals, etc., and applications and data can be shared between an OS corresponding to a contact type interface and an OS corresponding to a non-contact type interface. realizable. This makes it possible to request processing of data managed by each OS regardless of the interface attributes, and thus can realize the above-described various media with extremely high versatility and convenience. Play.
Further, since two OSs and the like are mounted on one semiconductor chip, the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a diagram showing a file structure under a contact-side OS and a non-contact-side OS according to an embodiment of the present invention.
FIG. 2 is a diagram showing a schematic configuration diagram of an IC card according to the embodiment.
FIG. 3 is a diagram illustrating an example of a file configuration of an application file.
FIG. 4 is a diagram illustrating an example of a file structure of a link directory.
FIG. 5 is a diagram showing a specific example of a file structure under each OS for explaining the operation of the IC card according to the embodiment of the present invention.
FIG. 6 is a flowchart of processing performed between the IC card and the information processing terminal according to the embodiment.
FIG. 7 is a flowchart of processing performed between the IC card and the information processing terminal according to the embodiment.
FIG. 8 is a flowchart of processing performed between the IC card and the information processing terminal according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... IC card, 10 ... CPU, 12 ... ROM, 14 ... EEPROM, 16 ... RAM, 18A ... Contact type interface, 18B ... Non-contact type interface

Claims (9)

A plurality of operating systems respectively provided corresponding to a plurality of communication means for communicating with corresponding external devices,
Information managed by one operating system for requesting processing from an external device communicating with a communication device corresponding to the one operating system for data managed by another operating system Link information that is
And a control unit configured to perform processing on the data based on the link information when a request for processing the data is received from the external device. The data processing device has storage means for storing at least information managed by one operating system and data managed by another operating system in the plurality of operating systems,
The control means uses the link information to send the predetermined processing request to the other operating system when there is a processing request for the data from an external device communicating with a communication device corresponding to the one operating system. The data processing apparatus according to claim 1, wherein the data processing apparatus has a function of converting the processing request into a recognizable processing request. The data processing device has storage means for storing at least information managed by one operating system and data managed by another operating system in the plurality of operating systems,
The control means includes
When there is a processing request for the data from an external device that communicates with a communication device corresponding to the one operating system, the processing request that the other operating system can recognize the predetermined processing request based on the link information One operating system file manager or memory manager to send out as
The data processing apparatus according to claim 1, further comprising: a file manager or a memory manager of another operating system that performs predetermined processing based on a processing request received from the one file manager.   The data processing apparatus according to any one of claims 1 to 3, wherein the link information includes an identification number of a directory file managed by another operating system.   5. The data processing apparatus according to claim 1, wherein the link information includes attribute information of a directory file managed by another operating system.   An integrated circuit on which the data processing apparatus according to claim 1 is mounted.   7. An IC card comprising: the integrated circuit according to claim 6; non-contact type communication means for sending / receiving data to / from the outside by non-contact; and contact type communication means for sending / receiving data to / from the outside by contact. For a plurality of communication means that communicate with corresponding external devices, a plurality of operating systems provided in correspondence with each other, information managed by one operating system in the plurality of operating systems, and other operating systems manage A data processing method in a data processing device comprising: storage means for storing at least data to be processed; and control means for processing the information or data when a request for processing the information or data is received from the external device Because
Information that is managed by one operating system and is used to request processing from an external device that communicates with communication means corresponding to the one operating system for data managed by another operating system The link information is stored in the storage means by the one operating system;
If the there from the external device processing request for the data, the steps of the one operating system and other operating systems, the processing for the data based on the link information, causes the control means A data processing method comprising: For a plurality of communication means that communicate with corresponding external devices, a plurality of operating systems provided in correspondence with each other, information managed by one operating system in the plurality of operating systems, and other operating systems manage For data processing in a data processing device comprising: storage means for storing at least data to be processed; and control means for processing the information or data when there is a processing request for the information or data from the external device A program,
Information that is managed by one operating system and is used to request processing from an external device that communicates with communication means corresponding to the one operating system for data managed by another operating system The link information is stored in the storage means by the one operating system;
If the there from the external device processing request for the data, the steps of the one operating system and other operating systems, the processing for the data based on the link information, causes the control means A program that causes a computer to execute.

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