KR100926369B1 - Method for using smart card - Google Patents

Abstract

The present invention relates to a method of using a smart card. According to an embodiment of the present invention, a method of using a smart card includes supplying power to a smart card device connected to a mobile terminal, initializing a contact smart card mounted on the smart card device, and contactless type mounted on the mobile terminal. Receiving card information from a smart card and transmitting the received card information to the contact smart card.

Smart Card, Contact, Mobile Terminal

Description

How to use smart card {Method for using smart card}

The present invention relates to a smart card using method, and more particularly, to a method of using a smart card mounted inside the mobile terminal using a smart card connected to the outside of the mobile terminal.

A smart card is a plastic card that contains a microprocessor and a memory, which can store and process information in the card. Usually the same shape and size as a credit card is used most, and some are quite small, such as those used in European GSM phones.

A memory card is a type that includes only a memory, not a microprocessor. In a strict sense, a memory card is not a smart card, but may be included in a broad sense. Broad terms, including smart cards and memory cards, are usually used as 'chip card' or 'IC card'.

The main applications of smart cards are finance, identification, and access. It is also used inside the mobile terminal.

1 is a block diagram illustrating the structure of a mobile terminal in a UMTS system.

Referring to FIG. 1, the mobile terminal 100 may be classified into a mobile equipment (ME) 110 and a UMTS subscriber identity module 120 (USIM) 120 according to functions.

In general, the USIM 120 may be physically separated from the ME 110, so a standard interface Cu is defined between the two.

Here, the ME 110 includes a terminal equipment (TE) 130, a network termination (NT) 112, and a radio termination (RT) 114, and the NT 112 and the RT ( 114 may transmit and receive information via the Tu interface.

As shown in FIG. 1, NT 112 may communicate with USIM 120 and TE 130, respectively, via a Cu interface and an R interface.

In the UMTS, an interface of a radio section is called a Uu interface, and the RT 114 may transmit a radio signal to the NodeB 140 or receive a radio signal transmitted by the NodeB 140 through the Uu interface.

The USIM 120 is a component that stores information unique to a user, and is generally in the form of an integrated circuit (IC) card that is physically detachably mounted on one side of the mobile terminal 100. The USIM 120 may provide various applications, where various applications include a banking function, a phonebook function, a traffic function, and the like, and a communication function corresponding to various wireless access technologies. For this reason, USIM 120 is often referred to as Universal Integrated Circuit (UICC) with smart card functionality.

In general, the content included in the USIM 120 is supplied by a service provider. In addition, the USIM 120 may include unique information of a subscriber stored in a home location register (HLR) of a core network.

In addition, the USIM 120 may maintain various personal information such as a phone book, a call log, and a short message.

In the following description, basic information that may be stored in the USIM 120 will be described in detail.

First, the USIM 120 may maintain encryption algorithms, IMSIs, and access class information, which are basic information set by the USIM manufacturing company and the service provider.

In addition, the USIM 120 includes a location identifier, for example, a location area identity, a routing area identity, and the like, as information for providing mobility of the terminal, a temporary mobile subscriber identity (TMSI), and encryption parameters. It can also store information about the types of services that can be accessed through the corresponding USIM.

In particular, the USIM 120 may maintain its own execution program for executing various applications, and may store user data such as short messages, dialing information, and phonebooks that are personally used by the user.

The ME 110 refers to a wireless terminal in charge of actual communication with a radio access network, and is divided into a mobile terminal (MT) 115 and a TE 130.

The MT 115 has a wireless access protocol for communicating with a mobile communication system over a wireless section. In terms of the UE 100, the MT 115 can communicate only in the UTRAN region using the same radio access technology as the actual physical terminal device.

TE 130 provides the control functions necessary for the operation of the radio access protocol. For example, TE 130 may provide an environment in which a wireless terminal connected to a laptop computer may operate like a wireless modem. The TE 130 also controls the termination of the terminal using a Modem Control Command Set, such as AT Command defined by ITU-T, where the termination of the terminal includes NT 112 and RT 114. can do.

The present invention provides a method of using a smart card using a mobile terminal having a contact smart card that can be controlled by connecting a mobile terminal and a cable to be used in a contact smart card reader. .

In addition, the present invention provides a method of using a smart card using a mobile terminal with enhanced security by using a contact smart card suitable for a system requiring high security.

In addition, the present invention provides a smart card using method using a mobile terminal that can be used in any smart card reader having a contactless smart card mounted inside the mobile terminal and a contactless smart card outside.

According to an aspect of the present invention, a method of using a smart card in a mobile terminal is disclosed.

A method of using a smart card according to an embodiment of the present invention comprises the steps of a) supplying power to a smart card device connected to the mobile terminal, b) initializing a contact smart card mounted on the smart card device, c) And receiving card information from a contactless smart card mounted in the mobile terminal, and d) transmitting the received card information to the contact smart card.

According to another aspect of the present invention, a smart card device is disclosed.

According to another embodiment of the present invention, a smart card device includes a communication unit configured to receive power and contactless smart card information from a mobile terminal equipped with a contactless smart card, and the received power and contactless smart card information mounted in the smart card device. It may include a control unit for providing a contact smart card.

According to another aspect of the present invention, a method of using a smart card in a smart card device is disclosed.

According to an embodiment of the present invention, a method of using a smart card may include receiving power from a mobile terminal connected to the smart card device, performing initialization of a contact smart card mounted on the smart card device, and And storing the contactless smart card information received from the mounted contactless smart card in the contact smart card.

In the smart card using method according to the present invention, a contactless smart card mounted in the mobile terminal may be used in a contact card reader using a contact smart card connected to the mobile terminal.

In addition, the present invention increases security in the use of smart cards.

In addition, the present invention can use a smart card in any smart card reader.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view illustrating the external appearance of the contact smart card 200.

The smart card includes a contact smart card 200 and a contactless smart card according to a communication method with a reader.

Referring to FIG. 2, the contact smart card may include an electrical contact surface 210, and may be in physical contact with a reader to obtain a power and clock signal for operating the chip.

On the other hand, the contactless smart card has an antenna in the card instead of the electrical contact surface 210 of the contact smart card 200, thereby not only communicating with the reader but also receiving power.

Here, the contact smart card 200 will be described.

As shown in FIG. 2, the contact smart card 200 is provided with an electrical contact surface 210 and a magnetic strip 220 on the outside thereof to communicate with the reader.

Here, the electrical contact surface 210 is a physical contact with the reader when the card is inserted into the reader to connect the reader and the device such as a microprocessor or memory inside the contact smart card 200.

In addition, the contact smart card 200 may be powered or cut off from the reader under the control of the reader, and may be a lock to prevent accidental removal during transmission and reception with the reader. Thus, the contact smart card 200 is suitable for systems requiring high security. That is, it can be used for security-first applications, for example, financial applications such as electronic money or network access.

3 is a view for explaining the pin assignment structure and function of the contact smart card defined in ISO 7816-2.

As shown in FIG. 3, ISO 7816 part 2 defines the arrangement and location of the electrical contact surfaces. That is, define the purpose, location and electrical characteristics of the metal contact of the smart card.

The smart card defined in ISO 7816 part 2 consists of a total of 8 pins, and the arrangement of each pin is as shown in reference numeral 300.

In the following description, the function of each pin will be described in detail.

C1 (Vcc, 310) is a pin that provides operating power to a microprocessor chip on a smart card via a power line.

C2 (RST) 320 is a pin that receives a predetermined reset signal from a device that communicates with a smart card via a predetermined reset line. The microprocessor on the smart card, i.e., the card operating system, is C2. Upon receiving the reset signal through 320, a series of reset commands is started.

C3 (CLK) 330 is a pin that provides a clock signal to the microprocessor chip of the smart card through the clock signal line. Here, the clock signal may provide a common framework for the communication speed of the smart card and data communication between the smart card and an external interface device such as a terminal such as a mobile terminal.

C5 (GND, 310) is a pin that provides a common electrical grounding function between the external interface device and the smart card.

C6 (Vpp, 360) is a pin that provides the programming power used to program the EEPROM (Electrically-Erasable Programmable Read-Only Memory) of the first smart card.

In particular, C6 360, which provides the EEPROM programming voltage, was used a lot in the early days, but is not used due to the recent development of semiconductor technology.

The C7 (I / O) 370 is an input / output pin for providing a half-duplex communication channel based on the ISO 7816 standard between the smart card reader and the smart card.

C4 (Reserved for Future Use (RFU) 340) and C8 (Reserved for Future Use (RFU) 380) are reserved pins for future use and are pins for which no special functionality has yet been defined.

4 is a view showing the configuration of an apparatus according to an embodiment of the invention.

More specifically, it is a view showing the connection state of the smart card device 440 including the mobile terminal 400, the contactless smart card 420 and the contact smart card.

Here, the contactless smart card 420 is an IC (Integrated Circuit) card that is detachably mounted and used in the mobile terminal 410, and includes a function of a UMTS Subscriber Identity Module (USIM) 120 or a smart card. Integrated Circuit).

In addition, the smart card device 440 is a device having an interface to be connected to the contact smart card 200 through the mobile terminal 400 and the cable 430. Here, the interface provided in the smart card device 440 may be a wired interface capable of transmitting and receiving power and data, and a USB interface may be used.

In addition, the contact smart card 200 has the same structure or usage as the conventional smart card, but the information is not stored at all and is initialized and thus can be controlled and used only by the user mobile terminal 400.

5 is a block diagram showing the configuration of a smart card device 440 according to an embodiment of the present invention.

In more detail, FIG. 5 is a diagram illustrating the smart card device 440 by adding the controller 510 and the communication unit 520 to the contact smart card 500 according to an embodiment of the present invention.

Referring to FIG. 5, the smart card device 440 includes a contact smart card 500, a control unit 510, and a communication unit 520.

Here, the communication unit 520 is a part that is connected to the charging terminal and the cable of the mobile terminal 400 to receive power and information from the mobile terminal 400. The information may be an initialization signal or contactless smart card information.

In addition, the control unit 510 supplies the power received by the communication unit 520 to the contact smart card 500, initializes the contact smart card 500 according to the initialization signal received by the communication unit 520, The contactless smart card information received by 520 is stored in the contact smart card 500.

6 is a flowchart illustrating a method of using a contact smart card 660 using contactless smart card information according to an embodiment of the present invention.

More specifically, FIG. 6 is a view for explaining a procedure of transmitting and storing the information of the contactless smart card 650 to the contact smart card 660 in order to use the contact smart card 660 in an initialization state. to be.

Referring to FIG. 6, when the contact smart card 660 is connected, the mobile terminal 600 supplies power (S602).

When the power supply is completed, the mobile terminal 600 initializes the contact smart card 660 (S604).

The mobile terminal 600 outputs a query whether to use the connected contact smart card 660 on the screen (S606).

When the input signal indicating the intention of the user is input, the mobile terminal 600 displays a list of card information stored in the contactless smart card 650 built in the mobile terminal 600 on the screen (S608). ).

The user selects desired card information from the list of card information displayed on the screen of the mobile terminal 600 (S610).

The mobile terminal 600 performs user authentication (S612).

After inputting the password by the user, the mobile terminal 600 determines whether the password matches the preset password (S614).

If the password matches the determination result, the mobile terminal 600 receives the card information selected by the user from the contactless smart card (S616).

The mobile terminal 600 temporarily stores the received card information in the internal memory (S618).

The mobile terminal 600 transmits the card information to the contact smart card 660 (S620).

The contact smart card 660 receives and stores card information and performs a contact application (S622).

The mobile terminal 600 initializes the contact smart card 660 again after the contact smart card 660 performs the contact application (S624).

7 is a flowchart illustrating a procedure for registering to use a smart card device 440 including a contact smart card in a mobile terminal 400 according to an embodiment of the present invention.

First, the mobile terminal 400 determines whether the smart card device 440 is connected (S700).

After the smart card device 440 is connected, the mobile terminal 400 supplies and initializes the smart card device 440 (S710).

The mobile terminal 400 displays a menu on the screen so that the user can select the desired card information (S720). Here, the card information is contactless smart card information used in the mobile terminal and may be a credit card, a check card or an electronic money card.

The user selects the desired card information from the menu displayed on the mobile terminal 400 (S730).

After the card information is selected, the mobile terminal 400 displays a screen for receiving a password input and authenticates the user (S740).

The mobile terminal 400 determines whether the password input by the user matches a preset password (S750).

If the passwords match, the mobile terminal 400 receives the card information selected by the user from the contactless smart card 420 (S760).

If the password does not match, the mobile terminal 400 displays the screen for receiving the password again, but determines whether there is a continuous N (N is a natural number) mismatch (S790). Herein, if the mobile terminal 400 discontinues N consecutive times (N is a natural number), the mobile terminal 400 may immediately stop the use procedure and restrict the use.

The mobile terminal 400 transmits the card information received from the contactless smart card 420 to the smart card device 440 including the contact smart card 500 (S770).

The mobile terminal 400 determines whether the smart card device 440 is connected (S780), and terminates when it is released. Here, step S780 may be omitted, and the smart card device 440 may be used regardless of whether a connection is made after step S770.

8 is a flowchart illustrating a method of using a smart card in the smart card device 440 according to an embodiment of the present invention.

First, the smart card device 440 determines whether it is connected to the mobile terminal 400 (S800).

After the smart card device 440 is connected to the mobile terminal 400, the smart card device 440 receives power from the mobile terminal 400 connected to the smart card device 440 (S810).

The smart card device 440 initializes the contact smart card 500 mounted on the smart card device 440 (S820).

The smart card device 440 determines whether to receive the contactless smart card information (S830).

When the contactless smart card information is received from the contactless smart card mounted in the mobile terminal, the smart card device 440 stores the contactless smart card information in the contact smart card 500 (S840).

The smart card device 440 performs a contact application (S850).

The smart card device 440 determines whether the contact application is completed (S860). Here, the smart card device 440 may execute a contact application regardless of whether the smart card device 440 is connected.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

1 is a block diagram illustrating the structure of a mobile terminal in a UMTS system.

2 is a view illustrating the external appearance of the contact smart card 200.

3 is a view for explaining the pin assignment structure and function of the contact smart card defined in ISO 786--2.

4 is a diagram illustrating a configuration of an apparatus according to an embodiment of the present invention.

5 is a block diagram showing the configuration of a smart card device 440 according to an embodiment of the present invention.

6 is a flowchart illustrating a method of using a contact smart card 660 using contactless smart card information according to an embodiment of the present invention.

7 is a flowchart illustrating a procedure for registering to use the smart card device 440 including the contact smart card 500 in the mobile terminal 400 according to an embodiment of the present invention.

8 is a flowchart illustrating a method of using a smart card in the smart card device 440 according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

400: mobile terminal 410: inside the mobile terminal

420: contactless smart card 430: cable

440: smart card device 500: contact smart card

510: control unit 520: communication unit

Claims (15)

In the method of using a smart card in a mobile terminal, a) supplying power to a smart card device connected to the mobile terminal; b) initializing a contact smart card mounted in the smart card device; c) receiving card information from a contactless smart card mounted in the mobile terminal; And d) transmitting the received card information to the contact smart card. The method of claim 1, The contactless smart card is a contactless application is mounted, the contact smart card is a smart card using a contact application is mounted. The method of claim 1, After step b) above, b-1) receiving an input signal on whether to use a contact smart card using the contactless smart card information and receiving an input signal using the contact smart card, and the step c) is performed. How to use a smart card. The method of claim 1, Prior to step c) And performing user authentication on the contactless smart card in the mobile terminal. The method of claim 4, wherein The user authentication is performed using a smart card preset password corresponding to the contactless smart card. The method of claim 1, after step d), d-1) performing a contact application using the contact smart card; And d-2) after performing the contact application, the method further comprises the step of initializing the contact smart card. The method of claim 1, Prior to step a) And connecting the mobile terminal and the smart card device equipped with the contact smart card. In a smart card device, A communication unit configured to receive a power source and the contactless smart card information from a mobile terminal equipped with a contactless smart card; And And a controller configured to provide the received power and contactless smart card information to a contact smart card mounted in the smart card device. The method of claim 8, The contact smart card stores the contactless smart card information to perform a contact application. The method of claim 8, The communication unit is connected to the mobile terminal via a cable is a smart card device that provides power and the contactless smart card information. The method of claim 8, The communication unit has a USB interface and the smart card device connected to the mobile terminal via a USB cable. The method of claim 8, The control unit provides the contact smart card with the power received by the communication unit, and initializes the contact smart card according to the initialization signal received by the communication unit. Smart card device for storing the contactless smart card information received by the communication unit in the contact smart card. In the method of using a smart card in a smart card device, Receiving power from a mobile terminal connected to the smart card device; Performing initialization of the contact smart card mounted in the smart card device; And And storing contactless smart card information received from the contactless smart card mounted in the mobile terminal in the contact smart card. The method of claim 13, The smart card device is connected to the charging terminal of the mobile terminal via a smart card using method. In a recording medium readable by a mobile terminal, which records a program for executing a method of using a smart card in a mobile terminal, a) supplying power to a smart card device connected to the mobile terminal; b) initializing a contact smart card mounted in the smart card device; c) receiving card information from a contactless smart card mounted in the mobile terminal; And d) a recording medium readable by a mobile terminal having recorded thereon a program for executing a method of using a smart card, the method comprising transmitting the received card information to the contact smart card.

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