JP2000227956A - Portable storage medium and its issuing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to issue a portable storage medium stabilized independently of a contact memory/non-contact memory, prevented from being illegally intercepted and having a high communication speed. SOLUTION: The portable storage medium is provided with a contact memory 14 allowed to be connected with a contact interface and capable of storing contact data, a non-contact memory 16 allowed to be connected to the contact interface and a non-contact interface and capable of storing non-contact data, a memory access means 12 for connecting both the memories 14, 16 to the contact interface and writing data, and a memory access control means 11 for logically separating the means 12 from the non-contact memory 16 by flag processing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a portable storage medium such as an IC card having both a contact / non-contact interface and a method for issuing the same.

[0002]

2. Description of the Related Art Conventionally, this type of portable storage medium having a contact / non-contact interface has a difference in security level between a contact application and a non-contact application. Are logically or physically separated, and at the time of issuance, data is written and issued via different interfaces. That is, such a portable storage medium,
The data setting of the contact memory is performed by the contact interface, and the data setting of the non-contact memory is performed by the non-contact interface.

Further, an EEPROM, which is a rewritable nonvolatile memory, is used as a memory. This EEPRO
M has a concept of a page indicating a writable range at one time due to the limitation of the hardware. For example, if a page is a chip of 64 bytes, 1 byte is used.
One page must be written for writing te, and two pages must be written for writing 65 bytes. Here, if the total capacity of the EEPROM is 16 KB, the total number of pages is 256 pages. Area division such as a contact memory and a non-contact memory is performed by appropriately dividing the 256 pages. However, such memory area division is determined by hardware when a portable storage medium is issued. Had been.

[0004]

However, in the case where the above-mentioned conventional portable storage medium has both contact / non-contact interfaces, it is issued via each interface at the time of issuance. In particular, the non-contact memory is unstable compared to the contact type memory, and has a problem that the wireless communication is easily illegally intercepted and the communication speed is low.

[0005] Further, in the case where both the contact and non-contact interfaces are provided, if the existing medium issuing device is compatible with only one of the interfaces, it is necessary to change the equipment, which causes an increase in cost. Had become.

Further, as described above, the memory areas such as the contact memory and the non-contact memory are determined by hardware when the portable storage medium is issued, and thus can store application programs and data. When it is necessary to prepare a chip for each purpose of use of the portable storage medium or to change the purpose of use or the method of use, it is necessary to issue a new portable storage medium, which increases costs. It was also the cause.

Therefore, an object of the present invention is to provide a contact memory /
It is an object of the present invention to provide a portable storage medium that is stable, hard to be illicitly intercepted, and has a high communication speed regardless of a non-contact memory, and a method for issuing the same.

A second object of the present invention is to provide a portable storage medium capable of issuing even a medium issuing apparatus which supports only one of a contact / non-contact interface, and an issuance thereof. Is to provide a way.

Further, a third object of the present invention is to eliminate the need to prepare a chip for each purpose of use irrespective of the use area of the contact memory / non-contact memory and the contact / non-contact shared memory. It is to provide a portable storage medium that can change the usage and usage method.

[0010]

In order to solve the above-mentioned problems, a first aspect of the present invention provides a contact interface for exchanging information by contacting an external device, and exchanging information without contacting the external device. A non-contact interface to be performed, a contact memory connectable to the contact interface and / or the non-contact interface, and storing contact data; and the contact interface and / or
Alternatively, a non-contact memory that can be connected to the non-contact interface and stores non-contact data, and a memory that writes the data by connecting the contact memory and the non-contact memory to the contact interface A portable storage medium comprising: an access unit; and a memory access control unit that logically or physically separates the contact interface and the non-contact memory.

According to a second aspect of the present invention, in the portable storage medium according to the first aspect, the memory access control means performs disconnection between the contact interface and the non-contact memory by flag processing. It is a portable storage medium characterized by the following.

According to a third aspect of the present invention, in the portable storage medium according to the first aspect, the memory access control means disconnects the contact interface and the non-contact memory with a fuse. Is a portable storage medium.

According to a fourth aspect of the present invention, there is provided a contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, and the contact interface and / or A contact memory connectable to the contactless interface and storing contact data; and a contact memory connectable to the contact interface and / or the contactless interface and storing contactless data. A non-contact memory, a memory access unit for connecting the non-contact interface to the non-contact memory and the non-contact memory to write data, and a logical or physical connection between the non-contact interface and the non-contact memory. And a memory access control unit for separating the storage medium from each other.

According to a fifth aspect of the present invention, in the portable storage medium according to the fourth aspect, the memory access control means performs disconnection between the non-contact interface and the contact memory by flag processing. It is a portable storage medium characterized by the following.

According to a sixth aspect of the present invention, in the portable storage medium of the fourth aspect, the memory access control means disconnects the non-contact interface from the contact memory by using a fuse. Is a portable storage medium.

According to a seventh aspect of the present invention, there is provided a contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, and the contact interface and / or A contact memory connectable to the contactless interface and storing contact data; and a contact memory connectable to the contact interface and / or the contactless interface and storing contactless data. Non-contact memory, and a portable storage medium issuance method for manufacturing a portable storage medium including, wherein the contact interface and the non-contact memory are connected to the contact interface,
Issuance of a portable storage medium comprising: a writing step of writing data; and a separation step of theoretically or physically separating the contact interface and the non-contact memory after writing data in the data writing step. Is the way.

The invention according to claim 8 is a contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, and the contact interface and / or A contact memory connectable to the contactless interface and storing contact data; and a contact memory connectable to the contact interface and / or the contactless interface and storing contactless data. A non-contact memory for producing a portable storage medium including the non-contact memory, wherein the non-contact interface connects the non-contact memory with the non-contact memory and writes data. After writing data in the writing step and the data writing step, the non-contact interface and the contact A separating step to separate and re theoretically or physically, a method for issuing portable storage medium comprising.

According to a ninth aspect of the present invention, there is provided a contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, and the contact interface and / or A memory area that can be connected to the non-contact interface and stores data, and a memory management unit that divides the memory area according to a purpose of use and manages transmission and reception of data between the interface and the memory area. It is a portable storage medium provided.

According to a tenth aspect of the present invention, in the portable storage medium according to the ninth aspect, the division performed by the memory management means can be changed at any time, regardless of whether the medium is issued or not. Is a portable storage medium.

[0020] The invention according to claim 11 is a contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, and the contact interface and / or It can be connected to the non-contact interface, and can be used for contact and / or
Alternatively, a memory area for storing non-contact data and the memory area are divided into two or more pages, and a specific page is selected from the contact interface and / or the non-contact interface and the two or more pages. And a memory access restricting means for restricting data exchange with the memory.

According to a twelfth aspect of the present invention, in the portable storage medium according to the eleventh aspect, the memory access restricting means sets the two or more pages to a contact-only page, a non-contact-only page, The specific page is distinguished from a non-contact shared page or an unused page, and the specific page is the contact-only page.
The contactless dedicated page, the contactless contactless shared page, at least one of the unused pages,
A portable storage medium characterized by the following.

According to a thirteenth aspect of the present invention, in the portable storage medium according to the eleventh or twelfth aspect, the two or more pages are provided on the memory area or on a second memory area different from the memory area. The memory access restricting means restricts transmission and reception of data between the contact interface and / or the non-contact interface and the specific page by the flag. It is a portable storage medium characterized by the following.

According to a fourteenth aspect of the present invention, in the portable storage medium according to the eleventh or twelfth aspect, the memory access restriction means includes a program relating to access to the memory area, and the memory access restriction means A portable storage medium characterized in that data transfer between the contact interface and / or the non-contact interface and the specific page is restricted by the program.

According to a fifteenth aspect of the present invention, in the portable storage medium according to any one of the eleventh to fourteenth aspects, division and distinction of pages performed by the memory access restricting means, the flag, and the identification Page, the program can be changed at any time, regardless of when the medium is issued or after the issuance of the medium.

[0025]

Next, referring to the drawings and the like,
The present invention will be described in more detail by way of embodiments. In each of the embodiments described below, the portable storage medium is a contact / non-contact type IC card 10, 20, 3.
A description will be given taking 0, 30B as an example.

(First Embodiment) FIG. 1 is a block diagram showing a first embodiment of a portable storage medium according to the present invention. The IC card 10 of the first embodiment employs a memory switching method based on a flag, and includes a memory access control unit 11, a memory access unit 12, a memory 13, a contact interface 17, and a non-contact interface 18. And the like.

The memory 13 is composed of an EEPROM or the like, and has a contact memory 14 in which a contact application and its data are stored, and a shared memory in which non-contact / contact common data such as flag information F is stored. It includes a memory 15 and a non-contact memory 16 for storing non-contact applications and their data.

The memory access control means 11 reads and interprets the flag information F in the shared memory 15 and controls the access of the memory access means 12 to the non-contact memory 16 based on the flag information F. is there. The memory access unit 12 is a unit that can be connected to the contact interface 17 and the non-contact interface 18 and accesses the contact memory 14 and the non-contact memory 16 by contact or non-contact. The memory access control means 11, the memory access means 12, and the memory 1
3 can be composed of a one-chip IC.

FIG. 2 is a flowchart showing a process for issuing a portable storage medium according to the first embodiment. First, as shown in FIG.
When a write command is received from the contact interface (contact section) 17 (S100), this routine is started, an unissued flag is read from the shared memory 15 (S101), and whether or not an unissued flag is issued is determined. Judgment (S102), if affirmative, the process jumps to S105, where data is written to the non-contact memory 16 by the memory access means 12, and if negative, S1 is performed.
Go to 03.

Next, it is determined whether or not the data is in the non-contact memory 16 (S103). If the result is affirmative, the process proceeds to S104, where an access error process is performed, and if the result is negative (that is, in the contact memory 14). In step S105, the data is written to the contact memory 14 by the memory access unit 12. After a response is returned (S106), the process returns.

As shown in FIG. 2B, when the memory access control means 11 receives a command for rewriting the issued flag from the contact interface 17 as shown in FIG. Of the unissued flag (issued process) is performed (S
201), after performing a response response (S202),
To return.

As described above, according to the first embodiment, the memory access control means 11 reads the flag information F in the shared memory 15, and if the flag information F has not been issued, the memory access means 12 Data can be written from the contact interface 17 to the contact memory 14 and the non-contact memory 16. Therefore, at the time of issuance, data can be stably, safely, and rapidly written to the contact memory 14 and the non-contact memory 16 by the contact interface 17.

In operation after issuance, the memory access control means 11 rewrites the unissued flag in the shared memory 15 (issued process), and
6 and the contact interface 17 are logically separated from each other, so that access from the contact interface 17 to the non-contact memory 16 having lower security than the contact memory 15 is disabled, and a highly secure system is constructed. be able to. In addition, there is an effect that a contact / non-contact type IC card can be issued using an existing contact IC card issuing device.

In the first embodiment described above, the memory access control means 11 reads the flag information F in the shared memory 15, and if the flag information F has not been issued, the memory access means 12 uses Data is written to the contact memory 16 from the contact interface 17, and during operation after issuance, the unissued flag in the shared memory 15 is rewritten (issued processing), and the non-contact memory 16 and the contact interface 17 are rewritten. However, the flag information F in the shared memory 15 is read, and if the flag information F is not issued, the memory access means 12 causes the contact memory 14 and the non-contact memory 16 to be separated. Then, data is written from the non-contact interface 18, and during operation after issuance, Performing rewriting lug (issued processing), and contacting the memory 14 non-contact interface 1
7 may be logically separated. In this case, there is an effect that a contact / contactless shared IC card can be issued using only an existing contactless IC card issuing device.

FIG. 3 is a block diagram showing a modification of the portable storage medium according to the first embodiment. The IC card 10B shown in FIG. 3 has no shared memory. In this case, when writing data by contact from the contact interface 17, the contact memory 14 may have the flag information F. Note that when writing data by non-contact from the non-contact interface 18, the flag information F may be provided in the non-contact memory 16, though not shown.

(Second Embodiment) FIG. 4 is a block diagram showing a second embodiment of a portable storage medium according to the present invention. In the following description of the embodiments, portions that perform the same functions as those of the above-described embodiments will be denoted by the same reference numerals at the end, and redundant description will be omitted as appropriate. The IC card 20 according to the second embodiment employs a switching method using a physical disconnection means such as a fuse.
And second fuses 21-1 and 21-2, a memory access unit 22, a memory 23, and the like.

In this IC card 20, the contact memory 24
And contactless memory 26, contact interface 27
And can be issued from any of the contactless interface 28. For example, data can be written to the non-contact memory 26 via the contact interface 27 by the first fuse 21-1. Further, data can be written to the contact memory 24 via the non-contact interface 28 by the second fuse 21-2.

After writing the data, the first and second fuses 21-1 and 21-2 are cut to connect the contact memory 24 and the contact interface 27, and the non-contact memory 26 and the non-contact interface 28 However, each of them has a one-to-one correspondence, and different interfaces cannot be used.

In the second embodiment, in addition to the effect of the first embodiment, since the fuse is physically cut off by a fuse, it is not a signal line, and there is no need to perform a process of changing data of the memory access means 22. effective.

(Third Embodiment) FIG. 6 is a block diagram showing a portable storage medium according to a third embodiment of the present invention. The IC card 30 according to the third embodiment manages division of a memory area, regulation of data access, and the like by a memory access restricting unit 39. The memory access unit 32, the memory 33, and the contact interface 37
And a non-contact interface 38.

The memory 33 is a nonvolatile memory.
It is composed of an EPROM or the like. Here, the total capacity is 16 KB, and the total number of pages is 256 pages of EEPROM.
OM.

The memory access means 32 is a means which can be connected to the contact interface 37 and the non-contact interface 38 and accesses the memory 33 via the memory access restricting means 39 by contact or non-contact.

The memory access restricting means 39 includes a memory 3
3 is a means for dividing the area 3 and restricting access to the memory 33 from the contact interface 37 and / or the non-contact interface 38, and includes an area control flag 31.

FIG. 7 shows the memory 33 and the area control flag 31.
7 is a diagram illustrating a part of FIG. 6 in detail. At the time of issuance, the IC card according to the third embodiment divides the total number of 256 pages of the EEPROM into 128 pages exclusively for contact, 32 pages for exclusive use of non-contact, and 96 pages for shared contact / non-contact.

The area control flag 31 is set in the EEPROM 2
A flag for area control of 256 bits (32 bytes), one bit per page, corresponding to 56 pages, and is a part of the memory access restricting means 39. Area control flag 3 corresponding to a contact-only area with high security
1 is set. Other areas are in a reset state.

When an attempt is made to access the memory 33 via the non-contact interface 38, the memory access restricting means 39 refers to the area control flag 31 by hardware, and in the case of a reset state, the corresponding page Can be accessed, but in the set state, access to the corresponding page is disabled.

FIG. 8 is a diagram showing an example in which the area division of the memory 33 is changed after the IC card of the third embodiment is issued. In the IC card issued in the area division shown in FIG. 7, for example, when a contact-only application is later loaded and a more contact-only area is required than at the time of issuance, the memory access restricting means 39
The area control flag 31 is rewritten so that a part of the contact / non-contact common area is changed to the contact-only area.

In the example shown in FIG. 8, 3 KB (48 pages)
Area was changed from a contact / non-contact area to a contact-only area.

As described above, according to the third embodiment, the memory access restricting means 39 sets the area control flag 3
1 restricts access to the memory 33 from the outside, so that the purpose of use of each area of the memory 33 can be freely changed at any time, and one IC card can be used for various purposes. Since there is no need to create a card for each use, a versatile IC card can be provided at a low price.

(Fourth Embodiment) FIG. 9 is a block diagram showing a fourth embodiment of a portable storage medium according to the present invention. The IC card 30B of the fourth embodiment manages division of a memory area, regulation of data access, and the like by a program 40 included in a memory access regulation unit 39B.
, A contact interface 37 and a non-contact interface 38.

The memory access restricting means 39B is a means for dividing the memory 33 into areas and restricting access from the contact interface 37 and / or the non-contact interface 38 to the memory 33, and a program for restricting and controlling access to the memory. 40. According to the program 40, the memory 33 divides the total number of 256 pages of the EEPROM into a contact-only area 128 pages, a non-contact-only area 32 pages, and a contact / non-contact common area 96 pages.

FIG. 10 shows a program 40 included in the access control means 39B of the IC card according to the fourth embodiment.
4 is a flowchart illustrating the flow of a program 40 when access to a non-contact-only area from a contact portion is prohibited as an example of access control to the memory 33 from the outside performed by the computer.

In step (hereinafter, S) 300, a data write command is received via contact interface 37.

In S301, it is determined whether or not the place to be written is in the non-contact exclusive area. If it is in the non-contact exclusive area, the procedure proceeds to S302, and if it is outside the non-contact exclusive area, the procedure proceeds to S303.

In S302, an access error process is performed such as notifying the user that access to the non-contact only area is prohibited, and the flow advances to S304.

In step S303, data is written to the contact-only area, and the flow advances to step S304.

In step S304, a response is returned and a return is made.

As described above, according to the fourth embodiment, the memory access restricting means 39 B
Thus, access to the memory 33 from outside can be restricted, so that the purpose of use of each area of the memory 33 can be freely changed at any time, and a criterion for determining whether or not access is possible can be changed. . For example, even if the IC card prohibits access from the contact section to the non-contact-only area, if a change is required to enable access from the contact section to the non-contact-only area, the program 40 can be easily rewritten. Can be done. As described above, since one IC card can be used for various purposes, it is not necessary to create a card for each use, so that a more versatile IC card can be provided at a low price.

(Modifications) Various modifications and changes are possible without being limited to the above-described embodiments, and these are also within the equivalent scope of the present invention.

(1) The flag may be a specific address, and the fuse may be a switch provided at a predetermined position on the medium. Further, the number of flags, fuses and the like may be plural.

(2) The memory may be divided into a plurality, and at the time of operation, may include both a contact / non-contact shared memory. Also, as shown in FIG. 5, the three memories are:
There is no need to be continuous. The issued memory may be a plurality of discontinuous memory spaces managed by addresses or the like.

(3) The example in which the area control flag and the program can be rewritten any number of times has been described. However, the present invention is not limited to this example. Alternatively, restrictions may be imposed on hardware.

(4) The area control flag and the program may be provided in an EEPROM common to the data memory, or may be provided in a separately provided EEPROM or the like.

(5) Although the example in which the area control flag specifies the contact-only area has been described, the present invention is not limited to this, and the non-contact area may be specified.

(6) The contact / non-contact common area may be an unused area.

[0066]

As described above in detail, according to the present invention, it is possible to write / read a plurality of memories for contact / non-contact at high speed in a stable, secure and high-speed manner.
After that, the method of memory access is switched by a flag, a fuse, or the like, and depending on the level of operational security, the memory for contact / non-contact can be distinguished to operate safely and conveniently. There is an effect that it can be done.

Further, data can be written into both the contact / non-contact memory by only the contact / non-contact medium issuing device, so that the existing equipment can be effectively used. be able to.

Further, since the memory area and the access control standard classified for each purpose of use such as contact / non-contact can be freely changed even after issuance, the same chip can cope with more purposes of use. be able to.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a portable storage medium according to the present invention.

FIG. 2 is a flowchart illustrating a process of issuing a portable storage medium according to the first embodiment.

FIG. 3 is a block diagram showing a modification of the portable storage medium according to the first embodiment.

FIG. 4 is a block diagram showing a second embodiment of the portable storage medium according to the present invention.

FIG. 5 is a diagram illustrating a memory of a portable storage medium according to the embodiment.

FIG. 6 is a block diagram showing a third embodiment of the portable storage medium according to the present invention.

FIG. 7 is a diagram illustrating a relationship between an area control flag and a memory according to a third embodiment.

FIG. 8 is a diagram illustrating a relationship between an area control flag and a memory after an area change according to the third embodiment.

FIG. 9 is a block diagram showing a fourth embodiment of a portable storage medium according to the present invention.

FIG. 10 is a flowchart illustrating a memory access process of a portable storage medium according to a fourth embodiment.

[Explanation of symbols]

 10, 20, 30, 30B IC card 11 Memory access control means 21-1, 21-2 Fuse 12, 22, 32 Memory access means 13, 23, 33 Memory 14, 24 Contact memory 15 Shared memory 16, 26 Non-contact Memory F flag information 39, 39B memory access restricting means 40 program

Claims (15)

[Claims] 1. A contact interface for exchanging information by contacting an external device, a non-contact interface for exchanging information without contact with an external device, the contact interface and / or the non-contact interface A contact memory that is connectable to the device and stores contact data; and a non-contact memory that is connectable to the contact interface and / or the non-contact interface and stores non-contact data. A memory access unit that connects the contact memory and the non-contact memory to the contact interface and writes data; and a memory access control that theoretically or physically separates the contact interface and the non-contact memory. Means,
A portable storage medium comprising: 2. The portable storage medium according to claim 1, wherein said memory access control means disconnects said contact interface and said non-contact memory by flag processing. Storage medium. 3. The portable storage medium according to claim 1, wherein the memory access control means disconnects the contact interface and the non-contact memory by using a fuse. Medium. 4. A contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, the contact interface and / or the non-contact interface A contact memory that is connectable to the device and stores contact data; and a non-contact memory that is connectable to the contact interface and / or the non-contact interface and stores non-contact data. A memory access unit that connects the contact memory and the contactless memory to the contactless interface to write data; and a memory access that theoretically or physically separates the contactless interface from the contact memory. Control means;
A portable storage medium comprising: 5. The portable storage medium according to claim 4, wherein said memory access control means performs disconnection between said non-contact interface and said contact memory by flag processing. Storage medium. 6. The portable storage medium according to claim 4, wherein said memory access control means disconnects said non-contact interface from said contact memory with a fuse. Medium. 7. A contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, and the contact interface and / or the non-contact interface. Contact memory that can be connected to the device and that stores contact data, and that can be connected to the contact interface and / or the non-contact interface and that stores non-contact data. And a method for issuing a portable storage medium for manufacturing a portable storage medium including: a writing step of writing data by connecting the contact memory and the non-contact memory to the contact interface; After writing data in the data writing step, the contact interface and the non-contact memory are theoretically or Method for issuing portable storage medium and a separating step of disconnecting the physical. 8. A contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, and the contact interface and / or the non-contact interface. Contact memory that can be connected to the device and that stores contact data, and that can be connected to the contact interface and / or the non-contact interface and that stores non-contact data. And a method of issuing a portable storage medium for manufacturing a portable storage medium including: a writing step of writing data by connecting the contact memory and the non-contact memory to the non-contact interface; After writing data in the data writing step, the non-contact interface and the contact memory are logically or Method for issuing portable storage medium comprising a physically disconnecting dissection step. 9. A contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, the contact interface and / or the non-contact interface A portable storage medium that is connectable to a memory area for storing data, and a memory management unit that divides the memory area according to a purpose of use and manages data transfer between the interface and the memory area. . 10. The portable storage medium according to claim 9, wherein the division performed by the memory management means can be changed at any time, regardless of whether the medium is issued or not. Medium. 11. A contact interface for exchanging information by contacting with an external device, a non-contact interface for exchanging information without contact with an external device, the contact interface and / or the non-contact interface A memory area for storing contact and / or non-contact data, wherein the memory area is divided into two or more pages, and the contact interface and / or the non-contact interface and And a memory access restricting means for restricting transmission and reception of data to and from a specific page among two or more pages. 12. The portable storage medium according to claim 11, wherein the memory access restricting unit is configured to set the two or more pages as a contact-only page, a non-contact-only page, a contact-non-contact shared page, or The specific page is at least one of the contact-only page, the non-contact-only page, the contact / non-contact shared page, and the unused page. Portable storage media. 13. The portable storage medium according to claim 11, wherein the two or more pages are one-to-one on the memory area or on a second memory area different from the memory area. A corresponding flag is provided, and the memory access restricting means restricts transmission and reception of data between the contact interface and / or the non-contact interface and the specific page by the flag. Storage medium. 14. The portable storage medium according to claim 11, wherein the memory access restricting unit includes a program relating to an access to the memory area, and the memory access restricting unit includes: Controlling transfer of data between the contact interface and / or the non-contact interface and the specific page. 15. The portable storage medium according to claim 11, wherein division and distinction of a page performed by the memory access control unit, the flag, the specific page, and the program are performed. Is a portable storage medium characterized in that it can be changed at any time, regardless of whether the medium is issued or not.