KR100823679B1 - IC chip packaging supports multiple smart card functions - Google Patents

Abstract

The present invention relates to an IC chip packaging that supports a plurality of smart card functions, and in particular, to use a plurality of smart cards issued by a plurality of card issuers mounted on a mobile communication terminal, and different mutual understanding as a single IC chip packaging It is about packaging an IC chip.

In addition, the IC chip packaging for supporting a plurality of smart card functions according to the present invention is connected to the communication terminal and the loop antenna provided therein, the interface unit for transmitting and receiving information associated with the smart card; A plurality of smart card units including an applet for processing a smart card function, identification information of the applet, and a chip operating system for managing the applet; A connection control unit selecting one of the plurality of physically distinguished smart card units based on the applet identification information or the smart card selection signal input through the communication terminal or the loop antenna and connecting the interface unit to the interface unit; And a packaging having an external connection terminal for mounting to the communication terminal.

Description

IC chip packaging for multiple smart cards

1 is a configuration diagram schematically showing the structure of a smart card according to a communication method with a smart card reader;

2A and 2B are a rear view and a front view showing the appearance of the IC chip packaging that can be applied to the present invention,

3 is an exploded perspective view illustrating a configuration of a mobile communication terminal equipped with an IC chip packaging supporting a plurality of smart card functions according to the present invention;

4 is an electrical block diagram of an IC chip packaging supporting a plurality of smart card functions according to an embodiment of the present invention;

5 is a flowchart illustrating a method of selecting a smart card mounted in an IC chip packaging according to an embodiment of the present invention;

6 is a flowchart illustrating a method of selecting a smart card mounted in the IC chip packaging according to another embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: credit inquiry terminal 20: mobile communication terminal main body

21: Battery compartment 22: Battery jam groove

23: Battery fixing hook 24: Power connection terminal

25: card slot 40, 100: IC chip

41: Package rear part 41a: External connection terminal

42: package front part 42a: antenna connection terminal

50: battery 51: back

52: engaging projection 53: fixing groove

54: power supply terminal 55: RFID antenna

56: antenna terminal

110: connection control unit 120: interface unit

130: memory 140: SIM card portion

150: first credit card unit 160: second credit card unit

The present invention relates to an IC chip packaging that supports a plurality of smart card functions, and in particular, to use a plurality of smart card functions issued by a plurality of card issuers mounted on a mobile communication terminal, and different mutual understanding as a single IC chip It is about packaging an IC chip.

Smart cards are generally provided in the form of a credit card sized plastic card that is easy to carry anywhere in a wallet or a chip that can be mounted on a mobile communication terminal, and the term is used in various ways depending on the scope of application. In the ISO standard, the term 'IC card' is a generic term for a card in which one or more integrated circuits (ICs) are inserted. In the Smart Card Forum, the term "an integrated circuit card with memory capable of making decisions." The term 'smart card' is used, and other terms that emphasize computing functions such as 'chip card', 'microprocessor card' and 'CPU card' are also used, meaning that it includes storage, computing and high security functions. The terms 'super smart card' and 'Crypto Card' may also be used, but at least a smart card stores predetermined identification information and contacts or contacts with an external reader so that the stored information is recognized. Is defined as connected by

In addition, a subscriber identify module (SIM) card is a form of use of a smart card defined as described above, and is mounted on a mobile communication terminal so as to provide various services such as authentication, billing, and security functions of a terminal user. A smart card that stores personal information. Here, the subscriber identity module (hereinafter referred to as 'SIM') card was started in Europe adopting the GSM (Global System for Mobile communication) method, the use form of the carrier, for example, SIM card Issuing, the subscriber is carrying only the issued SIM card, anytime, anywhere, at the department store, supermarket, etc. to purchase a mobile terminal and purchased in the purchased terminal and use the service freely. Code division multiple access (CDMA) camps, on the other hand, are functionally identical but use the term UIM (user identify module) to distinguish them from the SIM. In addition, USIM (user subscriber identify module) is a term of a broader concept that accommodates both SIM and UIM. Now, as the ITU-2000 radio access standard of the ITU is approved in synchronous and asynchronous manner, it is now different from each other. It has become a practical way to implement roaming by using. As a result, the USIM standard for user authentication is actively being promoted. Hereinafter, in the present specification, SIM will be used as a concept for generically referring to UIM and USIM.

FIG. 1 is a schematic view illustrating a structure of a smart card according to a communication method with a smart card reader, that is, an interface method. As shown in FIG. 1, a smart card has a contact type and a near field communication. communication (NFC) is classified into contactless, hybrid, and combination cards. In particular, the combination card is a smart card with a loop antenna connected to the smart card chip, that is, a contact and contactless type integrated smart card has the advantage of being utilized in the contact and contactless applications shown in Table 1 below.

interface Characteristic Application field Interface specification Contact Security Electronic money, debit, credit, identity card, internet certification ISO 7816 Contactless Convenience, speed Traffic, access control, etc. ISO 14443

On the other hand, smart cards are equipped with one or more applets that handle functions such as traffic and financial transactions, and an application identifier (AID) for identifying the applets corresponding to the number of applets. And a chip operating system (COS) for operating the chip. Here, the COS is an operating system that integrates and manages all the applets mounted on the smart card, and a master key for the operating system exists for each card issuer that issued the smart card. In other words, the owner of the master key has the authority to install, delete, or modify a plurality of applets mounted on the smart card.

The master key is usually stored in a KMS (Key management system) constructed by a card issuer or a management agency and secured. Since this master key is the master key for all issued smart cards, a serious security problem occurs when this key is exposed. Thus, the master key is managed where only a limited number of people can access in an extremely limited environment. In addition, a single smart card may be installed with a plurality of applets that perform different functions. However, since card publishers are opposed to delegation of applets such as installation or removal of applets to third parties, it is practically impossible to integrate applets provided by multiple card issuers in one card.

However, the main point of Patent Publication No. 2006-19114, "Issuing / Service Method and System for IC Chip Cards Supporting Multiple Issuers" (hereinafter referred to as the "cited invention"), is a number of issues issued by multiple issuers to IC chip cards. 'S smart card consists of one integrated applet and application identifier (AID), which allows multiple smart cards to be used with a single IC chip card. In other words, the cited invention is realized under the premise of sharing the master key among the card issuers and thereby managing the smart card. However, this means that the authority of the smart card can be delegated to a third party, and as mentioned above, it is difficult to realize in reality and thus, a technology having a low utility value.

The present invention has been made to solve the above-mentioned problems, and is equipped with a plurality of chips to perform the smart card function independently, by selecting any one of these chips to connect to an external terminal, provided with a plurality of smart cards Its purpose is to support multiple smart card functions in one IC chip packaging.

In order to achieve the above object, an IC chip packaging that supports a plurality of smart card functions of the present invention is connected to a communication terminal and a loop antenna provided therein, and an interface unit for transmitting / receiving information related to a smart card; A plurality of smart card units including an applet for processing a smart card function, identification information of the applet, and a chip operating system for managing the applet; A connection control unit selecting one of the plurality of physically distinguished smart card units based on the applet identification information or the smart card selection signal input through the communication terminal or the loop antenna and connecting the interface unit to the interface unit; And an IC chip packaging that supports a plurality of smart card functions, including packaging having an external connection terminal for mounting in the communication terminal.

In the above-described configuration, the connection controller transfers the applet identification information input through the communication terminal or the loop antenna to the plurality of smart card units, and connects the smart card unit corresponding to the interface unit to the interface unit. .

The IC chip packaging supporting the plurality of smart card functions may further include a memory configured to store smart card information including applet identification information for each of the plurality of smart card units. When the applet identification information is input through the loop antenna, the memory may be accessed to connect the smart card unit corresponding to the input applet identification information to the interface unit.

In addition, the mechanical specification of the external connection terminal is preferably in accordance with ISO 7816.

In addition, the structure of the packaging is preferably in the form of a subscriber identity module (SIM) mounted on the mobile communication terminal.

In addition, the IC chip packaging that supports the multiple smart card functions include a hardware security module (HSM), a one-time password (OTP) generation module, a radio frequency identification (RFID) tag reading module. And a near field communication (NFC) module, wherein the connection control unit selects one of the plurality of smart card units and the module further connected to the interface unit.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to IC chip packaging for supporting a plurality of smart card functions according to an embodiment of the present invention.

2A and 2B are a rear view and a front view of an IC chip packaging that can be applied to the present invention, and FIG. 3 is an exploded perspective view illustrating a configuration of a mobile communication terminal equipped with IC chip packaging shown in FIGS. 2A and 2B. .

As shown in FIG. 2A and FIG. 2B, the IC chip packaging 40 to which the present invention is applied is provided with a package that surrounds electrical components such as a memory in an internal space, and is provided at a predetermined position of the package rear part 41. An external connection terminal 41a exposed from the internal substrate and electrically connected to the mobile communication terminal is provided, and a pair of antenna connection terminals 42a are connected to an antenna built in a battery at a predetermined position of the package front part 42. Is provided.

On the other hand, the mobile communication terminal equipped with the IC chip packaging 40 of the packaging type, as shown in Figure 3, the battery 50 for charging and discharging the power to be supplied to the terminal main body 20 and the terminal main body 20 It consists of.

In the above-described configuration, the terminal body 20 has a battery accommodating portion 21 formed to accommodate the battery 50 at its rear portion, a battery engaging groove 22 and a battery 50 formed in the recess to be engaged with the battery 50. ), And a battery fixing hook 23 for fixing it so as not to be easily detached, a power connection terminal 24 formed to receive power from the battery 50, and a card slot 25 to which the IC chip packaging 40 is mounted. Is done. Here, the number of terminals constituting the external connection terminal 41a of the card slot 25 and the IC chip packaging 40, the spacing between the terminals, and the positional arrangement of the terminals are determined by the standard defined in ISO 7816. The assignment of each terminal to the 7816 standard is shown in Table 1 below.

One 2 3 4 5 6 7 8 Power terminal (Vcc) Reset terminal (RST) Clock terminal (CLK) Reserved Terminal (RFU) Ground terminal (GND) Program voltage terminal (Vpp) Data input / output terminal (I / O) Reserved Terminal (RFU)

Next, the battery 50 coupled to the terminal body 20 to supply power is a rear portion 51 contacting the battery accommodating portion 21 of the terminal body 20, and a locking groove 22 of the terminal body 20. By engaging with the engaging projection 52 protruding at the lower end so as to mate to the lower side, the fixing groove 53 formed to be fixed to the fixing hook 23 of the terminal body 20, the power supply connecting terminal 24 of the terminal body 20 A power terminal 54 configured to supply power to the terminal body 20, an antenna 55 used to perform contactless wireless communication with an external device, and an IC chip packaging 40 mounted on the terminal body 20. It comprises a pair of antenna terminal 56 extending from the antenna 55 to connect with the antenna connection terminal 42a of the. At this time, the antenna 55 is embedded in the body of the battery 50 and is indicated by a dotted line as invisible to the real eye.

In the above-described configuration, the antenna 55 is a radio frequency identification (RFID) antenna used for performing contactless wireless communication, and is preferably a loop type antenna or a micro strip line antenna. In addition, the antenna terminal 56 of the battery 50 may be formed of an elastic contact piece convexly curved in an upward direction, in which case the IC chip packaging 40 in which the convexly bent portion of the elastic contact piece is in direct contact. The antenna connection terminal 42a of) may be easily connected to the antenna terminal 56 of the battery 50 by being perpendicular to the card front part 42 and being convex upward.

4 is an electrical block diagram of an IC chip supporting a plurality of smart card functions according to an embodiment of the present invention, wherein the packaging structure of the IC chip packaging 40 is preferably in the form of a SIM card.

As shown in FIG. 4, the internal configuration of the IC chip packaging 100 according to the present invention is connected to the main body 20 and the antenna 50 of the mobile communication terminal through the external connection terminal 41a described above. An interface unit 120 for communicating with a terminal body 20 or a credit authorization terminal (CAT) 10 or the like using a communication protocol according to the 7816 standard; SIM card unit 140 for services such as authentication, billing and security functions of the user of the mobile communication terminal; A first credit card unit 150 for services such as traffic, identification, financial transactions, etc .; A second credit card unit 160 having the same credit card function as the first credit card unit 150 but having a different master key; A connection control unit 110 which selects any one of these smart cards 140, 150 and 160 and connects it to the outside, that is, the terminal body 20 or the credit inquiry terminal 10; And a memory 130 for storing information of each smart card mounted in the IC chip packaging 100 of the present invention, such as an applet, an AID, a communication protocol, a card issuer, and the like. In addition, the third and fourth smart cards may be mounted in the IC chip packaging 100 as necessary.

In the above-described configuration, the SIM card unit 140, the first and second credit card unit 150, 160 are preferably in the form of chips that are physically separated from each other. In addition, as described above, each of the smart cards 140, 150, and 160 is equipped with one or more applets, an AID for identifying applets, and a COS for managing applets. Thus, the master key for installing, deleting or changing an applet is different for each smart card.

In detail, the connection controller 110 may use the smart card 140, 150, or 160 with an AID code given as an application protocol data unit (APDU) command in the terminal body 20 or the credit inquiry terminal 10. ) To connect the smart card to the interface unit 120 so that the applet of the smart card is executed. Alternatively, after confirming the smart card corresponding to the AID received from the terminal body 20 or the credit inquiry terminal 10 by accessing the memory 130 in which the smart card information is stored, the smart card interface unit 120 You can also connect to the applet of the smart card to run.

5 and 6 are flowcharts for explaining a method of selecting a smart card mounted on an IC chip supporting a plurality of smart card functions according to the present invention, respectively, the above-described connection control unit 110, that is, a plurality of smart cards It is a more specific function as a hub between the terminal and the external terminal.

First, the IC chip packaging 100 should be mounted on the mobile communication terminal 20, and the mobile communication terminal 20 will be equipped with an application for executing an applet. Accordingly, in step S11, the mobile communication terminal 20 transmits a reset command to the IC chip packaging 100 to drive the smart card. In response to this, in step S13, the IC chip packaging 100, that is, the connection controller 110 transmits the reset signal to each smart card unit. Next, if a response signal (answer to reset; ATR) comes from each smart card unit, it is transmitted to the mobile communication terminal 20 (step S15). Here, the ATR is defined in the ISO 7816 standard and is a response signal containing information on the smart card type, model, and manufacturer of the reset command from the reader.

Next, in step S17, the mobile communication terminal 20 selects an application through an ATR coming from each smart card mounted in the IC chip packaging 100, and in step S19, the corresponding AID according to the IC chip packaging ( 100). The IC chip packaging 100 connects the smart card unit corresponding to the received AID to the mobile communication terminal 20 (step S21), so that the applet is executed between the smart card unit and the mobile communication terminal 20 ( Step S23). Here, since the detailed method of step S21 has been described in the description of the connection control unit 110, it will be omitted because it may be duplicated.

Therefore, the user selects any smart card mounted in the IC chip packaging 100 through the smart card selection process as described above, and through this, the mobile payment service using the mobile communication terminal 20. service). Here, the mobile payment service is defined as a 'payment service using a mobile communication terminal equipped with a smart card when purchasing a service and goods online,' which appeared with an increase in demand for mobile communication services. Recently, due to the activation of wireless Internet and electronic commerce and the introduction of WiBro, the situation is expanding.

Meanwhile, FIG. 6 illustrates a process of selecting a smart card mounted in the IC chip packaging 100 prior to performing a product payment or the like offline by using the mobile communication terminal 20 equipped with the IC chip packaging 100. It is an example.

First, in step S31, the IC chip packaging 100 transmits a list of smart card information stored in the memory 130 at the request of the mobile communication terminal 20. Accordingly, in step S33, the mobile communication terminal 20 will select an arbitrary smart card from the card list based on the user's key button manipulation and return the information to the IC chip packaging 100.

Next, when the terminal user approaches the mobile communication terminal 20 to the credit inquiry terminal 10, the IC chip packaging 100 receives a reset command in step S35. Next, in step S37, the IC chip packaging 100 connects the smart card unit selected in step S33 to the credit inquiry terminal 10, so that the response signal ATR according to the reset command is sent to the credit inquiry terminal 10. FIG. To be delivered.

Next, in step S39, the mobile communication terminal 20 selects an arbitrary application through the ATR coming from the IC chip packaging 100, and transfers the corresponding AID accordingly to the IC chip packaging 100 in step S41. The IC chip packaging 100 connects the smart card unit selected in step S33 to the credit check terminal 10 (step S43) so that the applet is executed between the smart card unit and the credit check terminal 10. (Step S45).

The IC chip supporting a plurality of smart card functions of the present invention can be implemented in various modifications within the scope of the technical idea of the present invention without being limited to the above-described embodiments. For example, as illustrated in FIG. 4, the IC chip packaging 100 includes a hardware security key (HSM) 171 and a one-time password (OTP) generation module. 172, a radio frequency identification (RFID) tag reading module 173 and a near field communication (NFC) module 174 are further included, and these modules are also included in the connection controller 110 serving as a hub. It may be connected to the outside by

According to the IC chip packaging for supporting a plurality of smart card functions of the present invention as described above, by mounting a plurality of chips that perform the smart card function independently, by selecting any one of these chips to connect to an external terminal There is an effect that multiple smart cards can be used as a single IC chip packaging without having multiple smart cards. In addition, in the IC chip packaging according to the present invention, in addition to the smart card, various functional modules may be mounted and used.

Claims (6)

An interface unit connected to a communication terminal and a loop antenna provided therein for transmitting / receiving information related to a smart card; A plurality of smart card units including an applet for processing a smart card function, identification information of the applet, and a chip operating system for managing the applet; A connection control unit selecting one of the plurality of physically distinguished smart card units based on applet identification information or a smart card selection signal input through the communication terminal or the loop antenna and connecting the interface unit to the interface unit; And IC chip packaging supporting a plurality of smart card functions, including packaging having an external connection terminal for mounting in the communication terminal. The method of claim 1, The connection controller transmits the applet identification information input through the communication terminal or the loop antenna to the plurality of smart card units, and connects the smart card unit corresponding to the plurality of smart card functions to the interface unit. IC chip packaging. The method according to claim 1 or 2, The IC chip supporting the plurality of smart card functions further includes a memory for storing smart card information including applet identification information for each of the plurality of smart card units. When the applet identification information is input through the communication terminal or the loop antenna, the connection controller accesses the memory and connects a smart card unit corresponding to the input applet identification information to the interface unit. IC chip packaging with smart card support. The method of claim 3, wherein The mechanical specification of the external connection terminal is an IC chip packaging that supports a number of smart card functions, characterized in that according to ISO 7816. The method of claim 4, wherein The packaging of the IC chip for supporting a plurality of smart card functions, characterized in that the form of a subscriber identity module (SIM) mounted on a mobile communication terminal. The method of claim 1, The IC chip packaging supporting the multiple smart card functions includes an encryption key management module (HSM), a one-time password (OTP) generation module, a radio frequency identification (RFID) tag reading module, and a near field. Further includes a near field communication (NFC) module, And the connection controller selects one of the plurality of smart card units and the module included therein and connects the interface unit to the interface unit.

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