KR20120030176A - System and method for financial transaction using usb set-top box - Google Patents

Abstract

PURPOSE: A financial transaction system using a USB(Universal Serial Bus) STB(Set Top Box) and financial transaction method thereof are provided to enable a user to easily perform financial transaction by using the payment data of a smart card. CONSTITUTION: A USB STB(200) stores payment data in order to transact funds with unique identification. The USB STB includes a smart card which is able to authenticate a user and the STB. A personal computer(300) receives broadcast content through a network. When the STB and the user are authenticated, the personal computer receives the payment data from the smart card. The personal computer transmits the payment data to a financial institution server through a financial transaction application.

Description

Financial transaction system and financial transaction method using a set-top box {SYSTEM AND METHOD FOR FINANCIAL TRANSACTION USING USB SET-TOP BOX}

The present invention relates to a financial transaction system and a financial transaction method using a USB set-top box, in particular, when the set-top box and the user is authenticated by performing payment using the payment data of the smart card included in the USB set-top box, while watching the broadcast The present invention relates to a financial transaction system and a financial transaction method using a USB set-top box that can more easily perform financial transactions that must be secured.

In 2009, IT export items announced by the Ministry of Knowledge Economy increased 111.1% year-on-year, following the increase in exports after display panels, semiconductors, mobile phones, and color TVs. However, despite the increase in exports, such set-top boxes still have hardware limitations that can only be used inside the house by connecting them to TVs, and the limitations of the set-top box installations that are very cumbersome to attract new subscribers. Is difficult. In particular, in order to install the set-top box, the user contacts the service provider, sets the date and time that the service provider's installer can visit the user, and then installs the set-top box. The box could be installed.

In addition, in accordance with the trend of miniaturization and miniaturization of various electronic devices, users are using not only mobile phones but also various miniaturized portable electronic devices such as PMPs, notebook computers, and netbooks. However, even if a user is carrying a laptop or the like that can display broadcast content, the conventional set-top box is not portable, so it is not possible to use the set-top box at places other than the house where the set-top box is installed. Therefore, the conventional set-top box is a problem because it does not reflect the tendency of the portable electronic devices at all.

On the other hand, even if there is a portable set-top box, in order to make a payment using the set-top box can not store the information required for payment in the set-top box without security, there is a problem that is very cumbersome because the user must enter each time.

The present invention is to solve the above problems, and if the set-top box and the user is authenticated by performing the payment using the payment data of the smart card included in the USB set-top box, financial transactions must be maintained while watching the broadcast It relates to a financial transaction system and a financial transaction method using a USB set-top box that can be performed more easily.

According to another embodiment of the present invention, when the financial transaction authentication module transmits data necessary for financial transactions to the outside, by encrypting and transmitting using the encryption scheme of the USB set-top box, the data necessary for financial transactions is exposed to the outside. The present invention relates to a financial transaction system and a financial transaction method using a USB set-top box that can be prevented.

In order to achieve the above object, a financial transaction system using a USB set-top box according to an embodiment of the present invention stores a unique ID that can identify a USB set-top box and payment data that is data for financial transactions. A USB set-top box including a smart card capable of authenticating a set-top box and a user by using the unique ID and a unique key-SC corresponding to the unique ID; And receiving a broadcast content through a network, and receiving a payment data from the smart card when the set-top box application and the set-top box and the user are authenticated, which can execute the broadcast content through a player when the set-top box is authenticated. And a PC including a financial transaction application that enables a financial transaction by transmitting through a network to a financial institution server capable of performing payment.

Financial transaction system using a USB set-top box according to another embodiment of the present invention, the smart card memory for storing the unique ID, the unique key-SC and the payment data of the smart card; And generating an encrypted authentication code-SC that can be changed every time the USB set-top box is authenticated using the unique key-SC, and transmitting the encrypted authentication code-SC to an authentication server. And a set-top box authentication module capable of authenticating, wherein the financial transaction system stores a unique key-CS having the same value as the unique key-SC stored in the smart card, and encrypts the encrypted authentication code-SC. And an authentication server for authenticating the encrypted authentication code-SC using the unique key-CS.

In a financial transaction system using a USB set-top box according to another embodiment of the present invention, the smart card generates a signature using the unique key-SC for the ID and password input from the user, and the signature server generates the signature. And a user authentication module capable of authenticating a user of the USB set-top box by transmitting to the authentication server, wherein the authentication server authenticates the signature using the unique key-CS.

In a financial transaction system using a USB set-top box according to another embodiment of the present invention, when the set-top box and the user are authenticated, the set-top box application may activate the financial transaction application to perform the financial transaction. And a financial transaction application interworking module interworking with the financial transaction application.

In a financial transaction system using a USB set-top box according to another embodiment of the present invention, when the broadcast content is broadcast content in which a user pays for the broadcast content that sells the product, the financial transaction application may interwork with the financial transaction application. The module may be configured to execute the financial transaction application so that payment can be made through the financial transaction application.

In a financial transaction system using a USB set-top box according to another embodiment of the present invention, the financial transaction application interworking module may include the financial transaction application when the broadcast content is paid content that requires payment to execute the broadcast content. Characterized in that the financial transaction application to run through the payment.

Financial transaction system using a USB set-top box according to another embodiment of the present invention, encrypted payment data that can be changed every time the smart card attempts a financial transaction using the unique key-SC for the payment data- And a financial transaction authentication module for generating an SC and authenticating the financial transaction by transmitting the encrypted payment data-SC to the financial institution server through the financial transaction application. Storing the unique key-CS having the same value as the unique key-SC stored in the smart card, receiving the encrypted payment data-SC, and using the unique key-CS, the encrypted payment data-SC Characterized in that the authentication.

Financial transaction method using a USB set-top box according to an embodiment of the present invention, In the financial transaction method using a USB set-top box, USB set-top box connection step of connecting the USB set-top box including a smart card to a PC; A set-top box authentication step of the smart card authenticating the USB set-top box by using a unique ID for identifying a USB set-top box and a unique key-SC corresponding to the unique ID; A user authentication step of authenticating the user by the smart card using an ID and password and a unique key-SC inputted from the user; When the smart card authenticates the USB set-top box and the user, the PC receives payment data, which is data for financial transactions, from the smart card and performs a payment to a financial institution server network. Characterized in that performing; the financial transaction performing step to enable the financial transaction by transmitting through.

In the financial transaction method using a USB set-top box according to another embodiment of the present invention, in the set-top box authentication step, the smart card, the unique key corresponding to the unique ID and the unique ID- SC storage step; An authentication code-SC generating step of generating, by the smart card, an encrypted authentication code-SC that can be changed every time the USB set-top box is authenticated using the unique key-SC; An authentication code-SC transmission step of transmitting, by the smart card, the encrypted authentication code-SC to an authentication server; And the authentication code-SC authentication step of authenticating the USB set-top box by receiving the authentication result of the authentication server by the smart card.

Financial transaction method using a USB set-top box according to another embodiment of the present invention, after the authentication code-SC transmission step, the authentication server for storing the same unique key-CS and the unique key-SC stored in the smart card A, authentication code-SC receiving step of receiving the encrypted authentication code-SC; And an authentication code-SC authentication step for authenticating the encrypted authentication code-SC by the authentication server using the unique key-CS.

In the financial transaction method using a USB set-top box according to another embodiment of the present invention, in the user authentication step, the smart card, the signature generation step of generating a signature using the unique key-SC for the ID and password ; A signature transmission step of transmitting, by the smart card, the signature to the authentication server; And a signature authentication step of authenticating the user by the smart card receiving the authentication result of the authentication server.

According to another aspect of the present invention, there is provided a financial transaction method using a USB set-top box, after the user authentication step, when the USB set-top box and the user are authenticated, the broadcast content receiving step of receiving the broadcast content by the PC; Further, the step of performing the financial transaction, the smart card, payment for generating an encrypted payment data-SC that can be changed whenever the financial transaction attempts to use the unique key-SC for the payment data Generating a data-SC; A payment data-SC transmission step of transmitting the encrypted payment data-SC to the financial institution server; And a payment step of performing a payment by receiving an authentication result from the financial institution server.

In a financial transaction method using a USB set-top box according to another embodiment of the present invention, when the broadcast content is broadcast content in which a user pays for the broadcast content that sells the product, the financial transaction may be performed. Characterized in performing the steps.

In a financial transaction method using a USB set-top box according to another embodiment of the present invention, when the broadcast content is paid content that requires payment to execute the broadcast content, the financial transaction performing step is performed. It is done.

Financial transaction system and financial transaction method using a USB set-top box according to an embodiment of the present invention, when the set-top box and the user is authenticated by performing payment using the payment data of the smart card included in the USB set-top box, broadcast viewing It provides an effect that makes it easier to carry out financial transactions that must be secured.

In a financial transaction system and a financial transaction method using a USB set-top box according to another embodiment of the present invention, when the financial transaction authentication module transmits data necessary for financial transaction to the outside, it is encrypted and transmitted using an encryption system of the USB set-top box. It also provides the effect of preventing the exposure of data necessary for financial transactions to the outside.

1 is a system configuration diagram showing a financial transaction system using a USB set-top box according to the present invention.
2 is a detailed system configuration diagram showing a detailed configuration of a financial transaction system using a USB set-top box according to the present invention.
3 is a flowchart illustrating a financial transaction method using a USB set-top box according to the present invention.

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

1 and 2 is a block diagram showing a financial transaction system using a USB set-top box according to an embodiment of the present invention.

1 and 2, the financial transaction system using a USB set-top box according to the present invention, a USB set-top box 200 including a smart card 100, smart card 100 for authenticating the set-top box and the user And a PC 300 to which the set-top box 200 is mounted.

More specifically, the smart card 100 stores a unique ID that is a unique identification code for identifying the USB set-top box for authenticating the USB set-top box, and uses a unique key and a unique key corresponding to the unique ID. Authenticate your set-top box. In addition, in order to perform financial transactions, payment data, which is data necessary for financial transactions, may be stored, and if necessary, the payment data may be encrypted and transmitted to the outside of the smart card 100 through a communication network or the like. To this end, the smart card 100 may include a smart card memory 110, a set-top box authentication module 130, a user authentication module 150 and a financial transaction authentication module 170.

The smart card memory 110 stores a unique ID corresponding to a unique identification code for identifying the USB set-top box and a unique key corresponding to the unique ID in order to authenticate the USB set-top box. The unique ID is a unique value for identifying the USB set-top box and may be issued according to the USB set-top box, but may be used as a unique value issued according to the smart card in some cases. Among the unique keys, the unique key stored in the smart card is defined as unique key-SC.

In addition, the smart card memory 110 may store payment data, which is data for financial transactions.

The set-top box authentication module 130 generates an encrypted authentication code-SC using the unique key-SC, and transmits the encrypted authentication code-SC to the authentication server 400 to authenticate the USB set-top box 200. Do this.

The method of authenticating the USB set-top box 200 is as follows. The smart card 100 stores a unique ID that is a unique value that can identify the USB set-top box 200. Unique ID 101 may be made of region, manufacturer, date of manufacture, serial number and the like.

This unique ID is stored inside the smart card can be safe from forgery outside. However, since the unique ID always has the same value and can be read externally, the unique ID cannot be prevented from being hacked and duplicated. In order to prevent the USB set-top box from being duplicated by copying the unique ID, the smart card 100 generates and stores a unique key-SC corresponding to the unique ID. Instead of transmitting the unique key-SC directly to the outside, an encrypted authentication code-SC that performs its own operation using the unique key-SC is generated and transmitted. The encrypted authentication code-SC is a value that is changed every time as a result of the smart card's own operation. Therefore, because the encrypted encrypted authentication code-SC is transmitted, the USB set-top box can be prevented from being duplicated. The authentication server 400 for authenticating the USB set-top box 200 also stores the unique key-CS having the same value as the unique key-SC stored by the smart card 100, and thus receives the encrypted authentication code-SC. In this case, the encrypted authentication code-SC can be authenticated using the unique key-CS. That is, the authentication server 400 receives the encrypted authentication code-SC from the smart card, stores the unique key-CS which is the same key as the unique key-SC stored in the smart card, and encrypts the authentication code using the unique key-CS. -SC authentication is performed.

This authentication process is the authentication server 400 in turn transmits the encrypted authentication code-CS to the smart card 100, and authenticates the encrypted authentication code-CS using the unique key-SC stored in the smart card 100 By further performing, the smart card 100 and the authentication server 400 may be configured to perform mutual authentication.

The mutual authentication of the smart card 100 and the authentication server 400 may be performed by relaying a PC, that is, a set-top box application.

On the other hand, the smart card 100 of the USB set-top box including the smart card according to an embodiment of the present invention may be configured to further include a user authentication module 150 for authenticating the subscriber.

USB set-top box according to the present invention is a portable USB set-top box, the set-top box installation engineer can not be installed at every installation. For this reason, it is difficult for the installer to directly visit the subscriber's home and authenticate the subscriber through the conventional method of installing the set-top box and authenticating the subscriber. Therefore, the user authentication module 150 generates a signature for the ID and password received from the user, and transmits the signature to the authentication server 400 to perform a function of authenticating the user of the USB set-top box.

The smart card 100 performing this function may support an RF contactless interface of 13.56 MHz, and may be, for example, a combination IC card supporting both a contact and a contactless method.

On the other hand, the USB set-top box according to the present invention may be configured to include a financial transaction authentication module 170.

The financial transaction authentication module 170 generates an encrypted payment data-SC that can be changed every time a financial transaction is attempted using the unique key-SC for payment data, and converts the encrypted payment data-SC to the PC 300. Through the financial institution server 500 may be transmitted to authenticate the financial transaction. That is, the financial institution server 500 receives the encrypted payment data-SC from the smart card, stores the unique key-CS which is the same key as the unique key-SC stored in the smart card, and encrypts the payment using the unique key-CS. It performs the function of authenticating Data-SC.

The payment data, which is necessary data for payment, is stored in the smart card 100 mounted to perform authentication of the USB set-top box, and when the USB set-top box and the user are authenticated, the payment data is transmitted to the outside to perform a financial transaction. By doing so, it provides an effect that makes it easier to carry out financial transactions that must be kept secure during broadcast viewing.

Meanwhile, in order to enhance security when performing such a financial transaction, the financial transaction authentication module 170 may move out of a system (eg, an authentication server or a financial transaction server) in which important data such as payment data is physically isolated. By encrypting the data with a different value every time, the original value is not known until the authentication server or financial transaction server decrypts it, and the actual data is prevented from leaking itself so that the data important to the existing system can be safely concealed. do. In this case, encryption may be performed using a random number or a session value in order to prevent having the same encrypted value every time.

The PC 300 may be equipped with a USB set-top box 200, and receives the broadcast content, and if the USB set-top box is authenticated, performs the function of executing the broadcast content through the player, the USB set-top box and the user If you are certified, you can conduct financial transactions. For this purpose, the PC 300 may be configured to include a set-top box application 330 and a financial transaction application 350.

The set top box application 330 may receive broadcast content through a network, and execute the broadcast content through a player when the USB set top box is authenticated.

The financial transaction application 350 receives payment data from the smart card 100 when the user is authenticated, and transmits the data through a network to a financial institution server 500 capable of performing a payment, thereby enabling a financial transaction.

At this time, the set-top box application 330 may be configured to further include a financial transaction application interworking module 331, the financial transaction application interworking module 331, if the USB set-top box 200 and the user is authenticated, financial transactions It may be configured to include a financial transaction application interworking module 331 linked with the financial transaction application 350 to enable the application 350 to perform a financial transaction.

The financial transaction application interworking module 331 may finance the payment through the financial transaction application 350, in particular, when the broadcast content is broadcast content in which the user can purchase the product by paying the broadcast content selling the product. The transaction application 350 may be executed.

In addition, the financial transaction application interworking module 331 may provide a financial transaction application 350 so that the financial content may be paid through the financial transaction application 350 when the broadcast content is paid content that requires a fee to execute the broadcast content. Can be run.

In addition, the USB interface 310 for performing an interface with the USB set-top box 200 and the input module 370 for receiving a command or ID for controlling the USB set-top box or a PC, etc. Detailed description of the general configuration is omitted.

3 illustrates a financial transaction method using a USB set-top box according to an embodiment of the present invention.

First, the USB set-top box 200 including the smart card 100 performs the USB set-top box connection step (S100) connected to the PC (300). The configuration for executing the USB set-top box may be mounted on the PC in the form of an application, and when the USB set-top box 200 is connected to the PC 300, such an application may be automatically executed.

Next, using the smart card 100 included in the USB set-top box 200 performs a set-top box authentication step (S200) that can authenticate the USB set-top box 200.

In the set-top box authentication step (S200), the smart card 100 may authenticate the USB set-top box 200 using a unique ID for identifying the smart card and a unique key-SC corresponding to the unique ID. That is, the smart card 100 transmits the value generated using the unique ID and the unique key ID to the authentication server to be described below, and receives the authentication result from the authentication server. In such a step, the financial transaction method using the USB set-top box may use a smart card to communicate with the authentication server to authenticate the USB set-top box.

In the smart card set-top box authentication step (S200), more specifically, the unique key-SC storage step, authentication code-SC generation step, authentication code-SC transmission step and authentication code-SC authentication step can be performed.

In the unique key-SC storage step, the smart card 100 stores a unique ID for identifying the smart card and a unique key-SC corresponding to the unique ID. Unique ID is a unique value that can identify a USB set-top box consisting of region, manufacturer, date of manufacture, serial number.

In the authentication code-SC generation step, the smart card 100 generates an encrypted authentication code-SC using the unique key-SC. The encrypted authentication code-SC is a value that can be changed every time to prevent the duplication of the USB set-top box in which the smart card is mounted as a result of the smart card's own operation.

When the smart card 100 transmits the encrypted authentication code-SC to the authentication server 400 in the authentication code-SC transmission step, the authentication server 400 authenticates the encrypted authentication code-SC and sends the authentication result to the smart card ( 100). That is, the authentication server 400 stores the unique key-CS having the same value as the unique key-SC stored in the smart card. After receiving the encrypted authentication code-SC transmitted by the smart card, the authentication key-SC is authenticated using the unique key-CS.

This authentication step, by performing the step of transmitting the authentication code encrypted by the authentication server to the smart card and the smart card further authenticates it, so that the smart card 100 and the authentication server 400 to perform mutual authentication. Can be.

That is, in the authentication code-SC transmission step, the authentication server 400 generates an encrypted authentication code-CS using the unique key-CS, and transmits the encrypted authentication code-CS to the smart card. The smart card 100 receives the authentication code-CS and authenticates the encrypted authentication code-CS using the unique key-SC stored in the smart card, so that the authentication server and the smart card can mutually authenticate. The mutual authentication of the smart card 100 and the authentication server 400 may be performed by relaying a PC, that is, a set-top box application.

On the other hand, the authentication step of the smart card 100 and the authentication server 400 is not necessarily limited to the order described above, it is carried out at the same time according to the embodiment or changed within the range that can be easily carried out by those skilled in the art It is possible.

In the authentication code-SC authentication step, the smart card 100 receives the authentication result and authenticates the USB set-top box 200.

After the set-top box authentication step (S200), the smart card 100 may perform a user authentication step (S300) for authenticating a user.

In more detail, the user authentication step S300 may include a signature generation step of generating a signature encrypted using a unique key-SC, an ID and password input from a user, a signature transmission step of transmitting a signature to the authentication server 400, and Receiving an authentication result from the authentication server 400 may perform a signature authentication step of authenticating the user.

When the smart card 100 authenticates the USB set-top box 200 and the user through the set-top box authentication step (S200) and the user authentication step (S300), the PC can receive broadcast content and, if the user desires, You can also conduct transactions. That is, the PC 300 receives payment data, which is data for financial transactions, from the smart card 100 and transmits the payment data to a financial institution server 500 capable of performing payment through a network to perform financial transactions. It is possible to perform a financial transaction performing step (S400).

At this time, in order to prevent the payment data is exposed to the outside during the financial transaction step (S400), the smart card 100 encryption that can be changed every time the financial transaction attempts using the unique key-SC for the payment data A payment data-SC generation step of generating the payment data-SC, a payment data-SC transmission step of transmitting the encrypted payment data-SC to the financial institution server 500, and receiving an authentication result from the financial institution server 500 To perform a payment step of performing a payment.

On the other hand, if the broadcast content is a broadcast content that sells the product to the user can pay for the product to purchase the product or if the paid content to pay the cost to execute the broadcast content, the step of performing the financial transaction You can make a payment immediately.

According to this embodiment, it is possible to more easily perform a financial transaction that must be kept secure while watching a broadcast.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications, changes, etc. fall within the scope of the claims Should be seen.

100: smart card
110: smart card memory
130: set-top box authentication module
150: user authentication module
170: financial transaction authentication module
200: USB Set Top Box
300: PC
330: set-top box application
331: financial transaction application interworking module
350: financial transaction application
400: authentication server
500: financial institution server

Claims (14)

A unique ID that can identify a USB set-top box and payment data, which is data for financial transactions, are stored, and the set-top box and the user are stored using the unique ID and a unique key-SC corresponding to the unique ID. A USB set-top box including a smart card that can be authenticated; And
Receive broadcast content through a network, and if the set-top box is authenticated set-top box application that can run the broadcast content through the player and the set-top box and the user receives the payment data from the smart card, if the user is authenticated, A financial transaction system using a USB set-top box, characterized in that consisting of; PC comprising a financial transaction application to perform a financial transaction by transmitting through a network to a financial institution server capable of payment.
The method of claim 1,
The smart card comprises a smart card memory for storing the unique ID, the unique key-SC and the payment data; And generating an encrypted authentication code-SC that can be changed every time the USB set-top box is authenticated using the unique key-SC, and transmitting the encrypted authentication code-SC to an authentication server. Is configured to include; authentication, set-top box authentication module,
The financial transaction system stores a unique key-CS having the same value as the unique key-SC stored in the smart card, receives the encrypted authentication code-SC, and uses the unique key-CS to encrypt the encrypted key. Authentication code-certification server for authenticating the SC; financial transaction system using a USB set-top box, characterized in that comprises a.
The method of claim 2, wherein the smart card,
And a user authentication module for generating a signature using the unique key-SC for the ID and password received from the user, and transmitting the signature to the authentication server to authenticate the user of the USB set-top box. Become,
The authentication server is a financial transaction system using a USB set-top box, characterized in that for authenticating the signature using the unique key-CS.
The method of claim 3, wherein the set-top box application,
And a financial transaction application interworking module interworking with the financial transaction application to enable the financial transaction application to perform the financial transaction when the set top box and the user are authenticated. Financial transaction system used.
The method of claim 4, wherein the financial transaction application interworking module,
If the broadcast content is a broadcast content that allows a user to purchase the product by paying the broadcast content that sells the product, the USB set-top may be executed by executing the financial transaction application so that the payment may be made through the financial transaction application. Financial trading system using boxes.
The method of claim 4, wherein the financial transaction application interworking module,
In the case where the broadcast content is paid content that requires a payment in order to execute the broadcast content, the financial transaction system using the USB set-top box, characterized in that for executing the financial transaction application to pay through the financial transaction application. .
The method of claim 5 or 6, wherein the smart card,
Generate an encrypted payment data-SC that can be changed every time a financial transaction is attempted using the unique key-SC for the payment data, and the encrypted payment data-SC is generated through the financial transaction application through the financial transaction application. And a financial transaction authentication module capable of authenticating the financial transaction by transmitting to a server.
The financial institution server stores the unique key-CS having the same value as the unique key-SC stored in the smart card, receives the encrypted payment data-SC, and uses the unique key-CS to encrypt the encrypted key. Payment transaction data financial system using a USB set-top box, characterized in that for authenticating the SC.
In the financial transaction method using a USB set-top box,
A USB set-top box connection step of connecting the USB set-top box including a smart card to a PC;
A set-top box authentication step of the smart card authenticating the USB set-top box by using a unique ID for identifying a USB set-top box and a unique key-SC corresponding to the unique ID; With certificate
A user authentication step of authenticating the user by the smart card using an ID and password and a unique key-SC inputted from the user;
When the smart card authenticates the USB set-top box and the user, a financial institution server that receives payment data, which is data for financial transactions, from the smart card through the PC, and performs the payment data. A financial transaction method using a USB set-top box, characterized in that for performing a financial transaction to perform a financial transaction by transmitting through a network.
The method of claim 8, wherein the set-top box authentication step,
A unique key-SC storing step of storing, by the smart card, the unique ID and a unique key-SC corresponding to the unique ID;
An authentication code-SC generating step of generating, by the smart card, an encrypted authentication code-SC that can be changed every time the USB set-top box is authenticated using the unique key-SC;
An authentication code-SC transmission step of transmitting, by the smart card, the encrypted authentication code-SC to an authentication server; And
The smart card, the authentication code for authenticating the USB set-top box by receiving the authentication result of the authentication server-SC authentication step; characterized in that the financial transaction method using a USB set-top box.
The method of claim 9, wherein after the authentication code-SC transmission step,
An authentication code-SC receiving step of receiving, by the authentication server, storing the same unique key-CS as the unique key-SC stored in the smart card, the encrypted authentication code-SC; And
The authentication server, the authentication code-SC authentication step for authenticating the encrypted authentication code-SC using the unique key-CS; Financial transaction method using a USB set-top box.
The method of claim 9, wherein the user authentication step,
Generating, by the smart card, a signature for the ID and password by using the unique key-SC;
A signature transmission step of transmitting, by the smart card, the signature to the authentication server; And
The smart card, the signature authentication step of authenticating the user by receiving the authentication result of the authentication server; Financial transaction method using a USB set-top box, characterized in that for performing.
The method of claim 11, wherein after the user authentication step,
If the USB set-top box and the user is authenticated, the broadcast content receiving step of receiving the broadcast content by the PC;
In the performing of the financial transaction, a payment data-SC generation step of generating an encrypted payment data-SC that can be changed whenever the smart card attempts a financial transaction using the unique key-SC for the payment data. ; A payment data-SC transmission step of transmitting the encrypted payment data-SC to the financial institution server; And a payment step of performing a payment by receiving an authentication result from the financial institution server.
The method of claim 12, wherein the broadcast content,
When the broadcast content for the user to pay for the product to sell the product to sell the product, the financial transaction method using the USB set-top box, characterized in that performing the financial transaction step.
The method of claim 12, wherein the broadcast content,
The financial transaction method using a USB set-top box, characterized in that for performing the financial transaction, if the paid content to pay the cost to execute the broadcast content.

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