KR100974471B1 - Portable usb set-top box system including smartcard and execution method of a usb set-top box - Google Patents

Abstract

PURPOSE: A portable USB set top box system including a smart card and USB set up performing method are provided to mount the smart card which has high security to a USB set top box, thereby preventing set top duplication of portable USB type. CONSTITUTION: A USB(Universal Serial Bus) set top box(200) comprises a smart card(100). The smart card authenticates the USB set top box through unique ID and unique-SC corresponding to unique ID. An authentication server authenticates encrypted authentication code-SC by using a unique key-CS as same value with the unique key-SC. A set top box authentication module(110) generates the encrypted authentication code-SC by the unique-SC. The set top box authentication modules transmit the encrypted authentication code-SC to the authentication server.

Description

PORTABLE USB SET-TOP BOX SYSTEM INCLUDING SMARTCARD AND EXECUTION METHOD OF A USB SET-TOP BOX}

The present invention relates to a portable USB set-top box system including a smart card and a method for executing a USB set-top box. In particular, the portable USB set-top box is equipped with a high security smart card to prevent duplication, thereby providing portability and security. The present invention relates to a portable USB set-top box system including a smart card and a USB set-top box implementation method capable of simultaneously achieving two effects.

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.

An object of the present invention is to provide a portable USB set-top box system and a USB set-top box execution method including a portable smart card by configuring the set-top box in the form of USB.

According to another embodiment of the present invention, by installing a high security smart card in the USB set-top box, a portable USB set-top box system and a USB set-top including a smart card that can prevent the set-top box replication of the portable USB type Its purpose is to provide a way to run a box.

According to another embodiment of the present invention, by generating an authentication code that is a variable value using a unique ID and a corresponding unique key and transmitting the authentication code to authenticate the USB set-top box, the USB set-top box through a unique ID and unique key that is a fixed value It is an object of the present invention to provide a portable USB set-top box system and a USB set-top box implementation method including a smart card that can be prevented from being forged.

According to another embodiment of the present invention, a mobile device including a smart card capable of authenticating a subscriber despite the characteristics of a portable USB set-top box that cannot authenticate the subscriber at every installation by authenticating the subscriber through the subscriber authentication module. It is an object of the present invention to provide a possible USB set-top box system and a USB set-top box implementation method.

According to another exemplary embodiment of the present invention, the authentication of the USB set-top box and the DRM module or the CAS module operate in conjunction with each other, so that the DRM module or the CAS module does not operate in the case of an unauthenticated USB set-top box. An object of the present invention is to provide a portable USB set-top box system and a USB set-top box implementation method including a smart card that can be protected.

According to another embodiment of the present invention, the EPG is provided by parsing the service information of the broadcast content provided according to the broadcast content, and in this case, the EPG is configured by the UI to effectively deliver information to the user and increase user convenience. An object of the present invention is to provide a portable USB set-top box system and a USB set-top box implementation method including a smart card that can be used.

According to another embodiment of the present invention, since a broadcast program is played using a player in a PC, the USB set-top box does not have to have a separate player, and thus includes a smart card capable of providing a miniaturized USB set-top box. An object of the present invention is to provide a portable USB set-top box system and a USB set-top box implementation method.

According to another embodiment of the present invention, since the USB set-top box is mounted on the PC and used to receive power from the PC, a separate power supply device is not required, and a smart card that can save energy by operating at low power is included. An object of the present invention is to provide a portable USB set-top box system and a USB set-top box implementation method.

In order to achieve the above object, a portable USB set-top box system including a smart card according to an embodiment of the present invention stores a unique ID which is a unique identification code for identifying a smart card, and the unique ID and the unique ID. A USB set-top box including a smart card capable of authenticating a USB set-top box using a unique key-SC corresponding to an ID; A PC including a set-top box application for receiving broadcast content and executing the broadcast content through a player when the USB set-top box is authenticated; And storing a unique key-CS having the same value as the unique key-SC stored in the smart card, receiving an encrypted authentication code-SC from the smart card, and using the unique key-CS for the encrypted authentication. An authentication server for authenticating a code-SC; wherein the smart card comprises: a smart card memory configured to store the unique ID and the unique key-SC; 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. Characterized in that comprises a; set-top box authentication module that can authenticate.

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Portable USB set-top box system comprising a smart card according to another embodiment of the present invention, the smart card memory for storing the unique ID and the unique key-SC; 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 USB set-top box system stores the unique key-CS having the same value as the unique key-SC stored in the smart card, and encrypts the encrypted authentication code. And an authentication server for receiving the SC and authenticating the encrypted authentication code-SC using the unique key-CS.

In a portable USB set-top box system including a smart card according to another embodiment of the present invention, the authentication server generates an authentication code-CS encrypted using the unique key-CS stored in the authentication server, and The encrypted authentication code-CS is transmitted to the smart card, and the set-top box authentication module receives the encrypted authentication code-CS and authenticates the encrypted authentication code-CS using the unique key-SC. The authentication server and the smart card is characterized in that the mutual authentication.

In a portable USB set-top box system including a smart card according to another embodiment of the present invention, the smart card generates a signature using the unique key-SC for the ID and password received from the subscriber, the signature And a subscriber authentication module capable of authenticating subscribers of the USB set-top box by transmitting to the authentication server.

In a portable USB set-top box system including a smart card according to another embodiment of the present invention, the broadcast content is DRM broadcast content protected by Digital Rights Management (DRM), and the USB set-top box is the DRM broadcast. And a DRM module capable of decoding content into the broadcast content.

In the portable USB set-top box system including a smart card according to another embodiment of the present invention, the set-top box authentication module, if the authentication of the USB set-top box authentication flag (Flag) indicating the authentication of the USB set-top box And the DRM module is mounted on the smart card in the form of an applet, characterized in that activated when the authentication flag is added.

In the portable USB set-top box system including a smart card according to another embodiment of the present invention, when the set-top box application further includes a DRM agent, and the DRM module authenticates the USB set-top box, the DRM Agent The DRM decoding code for decoding the broadcast content is transmitted to the DRM agent, and the DRM agent is characterized in that for decoding the DRM broadcast content using the DRM decoding code.

In a portable USB set-top box system including a smart card according to another embodiment of the present invention, the broadcast content is CAS broadcast content protected by a CAS (Conditional Access System), and the USB set-top box is the CAS broadcast. And a CAS module capable of decoding content into the broadcast content.

In the portable USB set-top box system including a smart card according to another embodiment of the present invention, the set-top box authentication module, if the authentication of the USB set-top box authentication flag (Flag) indicating the authentication of the USB set-top box Add, and the CAS module is mounted on the smart card in the form of an applet, and is activated when the authentication flag is added.

The portable USB set-top box system including a smart card according to another embodiment of the present invention may include the CAS agent when the set-top box application further includes a CAS agent, and the CAS module authenticates the USB set-top box. The CAS agent transmits a CAS decoding code capable of decoding the broadcast content to the CAS agent, and the CAS agent decodes the CAS broadcast content using the CAS decoding code.

In a portable USB set-top box system including a smart card according to another embodiment of the present invention, the set-top box application is DVB-SI (Digital Video Broadcasting-Service Information), which is broadcast content service information provided according to the broadcast content. And a DVB-SI parsing unit for parsing and providing an EPG (Electronic Program Guide) to the subscriber.

In a portable USB set-top box system including a smart card according to another embodiment of the present invention, the set-top box application, the EPG for providing the EPG parsed by the DVB-SI parser to the user through a UI Characterized in that it comprises a; further comprising a UI component for configuring a UI.

A portable USB set-top box system including a smart card according to another embodiment of the present invention is characterized in that the set-top box application includes a broadcast content player for executing the broadcast content.

Portable USB set-top box system including a smart card according to another embodiment of the present invention, the PC, an input module for receiving a command to control the USB set-top box and the PC; An output module for outputting the broadcast content; And a USB interface for performing an interface with the USB set-top box.

The portable USB set-top box system including a smart card according to another embodiment of the present invention is characterized in that the input module receives a control command for controlling the PC using a keyboard, a mouse, or a remote controller.

In the portable USB set-top box system including a smart card according to another embodiment of the present invention, when the USB set-top box is connected, the PC automatically executes the set-top box application through plug and play. do.

Portable USB set-top box system including a smart card according to another embodiment of the present invention, the USB set-top box, a control module for controlling the USB set-top box; And a set-top box memory capable of downloading and storing the broadcast content.

The portable USB set-top box system including a smart card according to another embodiment of the present invention, the broadcast content providing server for providing the broadcast content to the USB set-top box; characterized in that it further comprises a.

In a method of executing a portable USB set-top box including a smart card according to an embodiment of the present invention, in the method of executing a portable USB set-top box equipped with a smart card, the USB set-top box including the smart card is connected to a PC. USB set-top box connection step; A unique key-SC storing step of storing, by the smart card, a unique ID for identifying the smart card 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; An authentication step of the smart card receiving the authentication result of the authentication server to authenticate the USB set-top box; Receiving, by the PC, the broadcast content when the smart card authenticates the USB set-top box; And executing, by the PC, a broadcast content for executing and outputting the broadcast content.

In a method of executing a portable USB set-top box including a smart card according to another embodiment of the present invention, in the authentication step, the smart card has a unique ID for identifying the smart card and a unique ID corresponding to the unique ID. A unique key-SC storing step of storing the key-SC; 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 an authentication step of authenticating the USB set-top box by receiving the authentication result of the authentication server by the smart card.

In accordance with another aspect of the present invention, there is provided a method of executing a portable USB set-top box including a smart card, after storing the authentication code, storing the same unique key-CS as the unique key-SC stored in the smart card. An authentication server, receiving an authentication code-SC for receiving the encrypted authentication code-SC; The authentication server, authentication code-SC authentication step for authenticating the encrypted authentication code-SC using the unique key-CS.

In accordance with another aspect of the present invention, there is provided a method of executing a portable USB set-top box including a smart card, wherein, after the authentication code transmitting step, the authentication server uses the unique key-CS encrypted authentication code-CS. Generating and transmitting the encrypted authentication code-CS to the smart card; The smart card receiving the encrypted authentication code-CS and authenticating the authentication server by authenticating the encrypted authentication code-CS using the unique key-SC; Characterized in that.

A portable USB set-top box executing method including a smart card according to another embodiment of the present invention is a case where the broadcast content is DRM broadcast contents protected by DRM (Digital Rights Management), and the USB set-top box is authenticated. After the authentication step, the USB set-top box, the authentication flag adding step of adding an authentication flag (Flag) indicating the authentication of the USB set-top box; further performing, and after the broadcast content receiving step, the PC And decoding the DRM broadcast content into the broadcast content when the authentication flag is added.

A portable USB set-top box executing method including a smart card according to another embodiment of the present invention is a case in which the broadcast content is CAS broadcast content protected by a CAS (Conditional Access System), and the USB set-top box is authenticated. After the authentication step, the USB set-top box, the authentication flag adding step of adding an authentication flag (Flag) indicating the authentication of the USB set-top box; further performing, and after the broadcast content receiving step, the PC And decoding the CAS broadcast content into the broadcast content when the authentication flag is added.

In accordance with another aspect of the present invention, there is provided a method of executing a portable USB set-top box including a smart card. Parsing the Digital Video Broadcasting-Service Information (DVB-SI) to provide an EPG (Electronic Program Guide) to the subscriber; parsing further.

In a method of executing a portable USB set-top box including a smart card according to another embodiment of the present invention, after the DVB-SI parsing step, the PC may parse the EPG parsed in the DVB-SI parsing step through a UI. And a UI configuration step of configuring the EPG as the UI to provide the user.

A portable USB set-top box system and a USB set-top box execution method including a smart card according to an embodiment of the present invention provide a portable effect by configuring the set-top box in a USB form.

In accordance with another embodiment of the present invention, a portable USB set-top box system including a smart card and a method of executing a USB set-top box include a portable USB type set-top box replica by installing a smart card with high security in the USB set-top box. It provides a preventable effect.

In accordance with another embodiment of the present invention, a portable USB set-top box system including a smart card and a method for executing a USB set-top box may be generated by using a unique ID and a unique key corresponding thereto, and generating and transmitting an authentication code that is a variable value. By authenticating the box, the USB set-top box can be prevented from being tampered with a unique ID, a unique value, and a unique key. An object of the present invention is to provide an SB set-top box system and a USB set-top box implementation method.

In accordance with another embodiment of the present invention, a portable USB set-top box system including a smart card and a USB set-top box executing method include a portable USB set-top that cannot authenticate a subscriber at every installation by authenticating a subscriber through a subscriber authentication module. Despite the nature of the box, it provides the effect of authenticating the subscriber.

A portable USB set-top box system and a USB set-top box execution method including a smart card according to another embodiment of the present invention, the authentication of the USB set-top box and the DRM module or CAS module to operate in conjunction with the unauthorized USB set-top In the case of the box, the DRM module or the CAS module is also disabled so that broadcasting contents can be protected more strongly.

In accordance with another embodiment of the present invention, a portable USB set-top box system including a smart card and a method of executing a USB set-top box provide an EPG by parsing broadcast content service information provided according to broadcast content, wherein the EPG is a UI. By providing a configuration, it provides an effect that can effectively deliver information to the user and increase user convenience.

In accordance with another embodiment of the present invention, a portable USB set-top box system including a smart card and a method of executing a USB set-top box play a broadcast content using a player in a PC, so the USB set-top box does not have to have a separate player. Therefore, it provides an effect that can provide a compact USB set-top box.

Portable USB set-top box system and a USB set-top box running method including a smart card according to another embodiment of the present invention, the USB set-top box is mounted on a PC is used to receive power from the PC is a separate power supply device It does not need to, and operates at low power, providing the effect of saving energy.

1 is a system configuration showing a portable USB set-top box system including a smart card according to the present invention.
2 is a detailed system configuration diagram showing a detailed configuration of a portable USB set-top box system including a smart card according to the present invention.
3 is an explanatory diagram showing USB set-top box authentication using a smart card according to the present invention.
Figure 4 is a flow chart illustrating a method of executing a portable USB set-top box including a smart card according to the present invention.
Figure 5 is a flow chart illustrating a method of executing a portable USB set-top box including a smart card 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 portable USB set-top box system including a smart card according to an embodiment of the present invention.

1 and 2, a portable USB set-top box system including a smart card according to the present invention, a smart card 100, a USB set-top box 200 and a USB set-top box including a smart card 100 It may be configured to include a PC 300 is mounted (200).

The smart card 100 stores a unique ID which is a unique identification code for identifying the smart card, and authenticates the USB set-top box using a unique ID and a unique key corresponding to the unique ID. To this end, the smart card 100 is configured to include a smart card memory 120 and the set-top box authentication module 110.

The smart card memory 120 stores a unique ID that is a unique identification code for identifying the smart card and a unique key corresponding to the unique ID. Among the unique keys, the unique key stored in the smart card is defined as unique key-SC.

The set-top box authentication module 110 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.

USB-type set-top boxes are less expensive to manufacture than conventional set-top boxes in hardware, are easy to learn, and can be used through a PC. Therefore, the USB set-top box 200 is equipped with a smart card 100, it can prevent the duplication by performing authentication of the USB set-top box.

A method of authenticating the USB set top box 200 will be described in more detail with reference to FIG. 3. The smart card 100 stores a unique ID 101 that is a unique value that can identify the smart card. Unique ID 101 may be made of region, manufacturer, date of manufacture, serial number and the like.

meaning size Yes area 2 Byte   "KR", 0 × 4B52 manufacturer 1 Byte   0 × 01 = Company A, 0 × 02 = Company B,. , 0 × FF = 255th company Date 3 Byte   YYMMDD Serial Number 6 Byte   Serial number 11 = 000000000011

For example, for the 11th smart card manufactured by A company in Korea on January 24, 2010, the unique ID 101 is

4B 52 01 10 01 24 00 00 00 00 00 11

Can be.

This unique ID 101 is stored inside the smart card can be safe from forgery outside. However, since the unique ID 101 always has the same value and can be read externally, the unique ID 101 cannot be prevented from being hacked and duplicated. In order to prevent the USB set-top box from being duplicated by duplicating the unique ID 101, the smart card 100 generates and stores a unique key-SC 102 corresponding to the unique ID. Instead of directly transmitting the unique key-SC 102 to the outside, the encrypted key authentication code-SC 103, which performs its own operation using the unique key-SC 102, is generated and transmitted. The encrypted authentication code-SC 103 is a value that is changed every time as a result of performing an operation of the smart card itself. Therefore, since the encrypted authentication code-SC 103 is not transmitted, the USB set-top box can be prevented from being duplicated. Since the authentication server 400 for authenticating the USB set-top box 200 also stores the unique key-CS 104 having the same value as the unique key-SC 102 stored by the smart card 100, the encrypted authentication is performed. When the code-SC 103 is received, the encrypted authentication code-SC 103 can be authenticated using the unique key-CS 104. That is, the authentication server 400 receives the encrypted authentication code-SC 103 from the smart card, and stores the unique key-CS 104, which is the same key as the unique key-SC 102 stored in the smart card, and the unique key. -Authenticates the encrypted authentication code-SC (103) using the CS (104).

This authentication procedure is the authentication server 400 is transmitted to the authentication code-CS encrypted to the smart card 100, and the authentication code encrypted using the unique key-SC 102 is stored smart card 100- By further authenticating the CS 103, the smart card 100 and the authentication server 400 may be configured to perform mutual authentication.

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 subscriber authentication module 130 that can authenticate 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. Accordingly, the subscriber authentication module 130 generates a signature for the ID and password received from the subscriber, and transmits the signature to the authentication server 400 to authenticate the subscriber 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.

The USB set-top box 200 authenticates the USB set-top box 100 and, when authenticated, performs the function of executing broadcast content through a PC. For this purpose, the USB set-top box 200 may be configured to include a USB control module 210 and a set-top box memory 230. The apparatus may further include a DRM module for decoding the DRM broadcast content protected by the DRM so that the DRM broadcast content may be executed by the player of the PC. The DRM module can be included in a USB set-top box or in a smart card.

The USB control module 210 performs a function of controlling the USB set-top box 200, and the set-top box memory 230 performs a function of downloading and storing broadcast content. The set top box memory 230 may be, for example, 4G flash memory.

According to an embodiment of the present invention, the broadcast content may be DRM broadcast content protected by Digital Rights Management (DRM), and the USB set-top box 200 may further include a DRM module for decoding the DRM broadcast content into broadcast content. Can be.

Digital Rights Management (DRM) is a solution that determines the user's rights of downloaded contents such as MP3 files, ringtones, and online videos, and uses them within the allowed range. DRM allows content providers to specify how often and how long they can copy content to other devices, such as PMP and navigation.

When the DRM module decodes the broadcast content, the DRM module may directly decode or transmit the DRM decoding code necessary for decoding to the PC so that the set-top box application of the PC decodes it. This will be described later.

The DRM module may be further included in the USB set-top box 200. In particular, according to an embodiment of the present invention, when the USB set-top box is authenticated, the DRM module may be activated to allow the set-top box authentication module 110 and the DRM module of the USB set-top box to work together.

The set-top box authentication module 110 may be configured to add an authentication flag indicating the authentication of the USB set-top box, and to be activated when the DRM module is mounted on the smart card in the form of an applet and the authentication flag is added.

The conventional DRM module performs a function of authenticating the set-top box by separately mounting a physical chip such as a secure memory in the set-top box. By the way, when such a physical chip is mounted, it could perform the basic functions of the DRM module called digital management management independently of the authentication of the set-top box. That is, even if the USB set-top box that could not be authenticated because the USB set-top box 200 was not authenticated, the function as a physical chip of the DRM could be used. By exploiting this, there is a problem that the DRM-protected contents, that is, the broadcasting programs can be illegally used. In order to solve this problem, according to an embodiment of the present invention, in the case of authenticating the USB set-top box 200, an authentication flag is added and a module requiring security is mounted on the smart card 100 in the form of an applet. It can be implemented to be linked through the authentication flag. The authentication flag may be set when the USB set-top box 200 is authenticated and initialized when the connection of the USB set-top box 200 is released (power off).

In addition, according to an embodiment of the present invention, the broadcast content may be CAS broadcast content protected by a Conditional Access System (CAS). In this case, the USB set-top box 200 may further include a CAS module for decoding CAS broadcast content into broadcast content.

CAS (Conditional Access System) checks whether the viewer paid the fee when the broadcaster encrypts the content and transmits it to the viewer through terrestrial wave, optical coaxial mixed network (HFC), satellite network, Internet, mobile mobile broadcasting network, etc. It is a device that decrypts passwords only to authorized users.

When the CAS module decodes the broadcast content, the CAS module may directly decode or transmit the CAS decoding code required for decoding to the PC so that the set-top box application of the PC decodes it. This will be described later.

Such a CAS module may be configured to be further included in the USB set-top box 200. In particular, according to an embodiment of the present invention, when the USB set-top box is authenticated, the CAS module is activated so that the set-top box authentication module 110 and the CAS module of the USB set-top box are interlocked.

When the set-top box authentication module 110 authenticates the set-top box, the set-top box authentication module 110 adds an authentication flag indicating the authentication of the USB set-top box, and when the CAS module is mounted on the smart card in the form of an applet, the authentication flag is added. It can be implemented to be activated.

In addition, the DRM module 140 and the CAS module 150 may be simultaneously implemented on one smart card 100.

On the other hand, the USB set-top box 200 according to an embodiment of the present invention may be configured to further include a wireless modem capable of connecting the IR receiving module 250 or the wireless Internet to support the use of the remote control.

In addition, the USB set-top box according to an embodiment of the present invention is preferably a set-top box that can use IPTV, but is not necessarily limited thereto, and may be configured to further include a tuner according to the embodiment.

The PC 300 may be equipped with the USB set-top box 200, and receives the broadcast content, and when the USB set-top box is authenticated, the PC 300 performs the function of executing the broadcast content through the player. To this end, the PC 300 may include a set top box application 310, a USB interface 370, an input module 350, and an output module 330.

The set top box application 310 may include a broadcast content player 311, a DRM Agent 312, a CAS Agent 313, a DVB-SI parser 314, and a UI component 315.

When the USB set-top box is authenticated, the broadcast content player unit 311 performs a function of executing the received broadcast content using a PC.

The DRM Agent 312 performs a function of decoding the DRM broadcast content. That is, upon receiving the DRM broadcast content, the USB set-top box authenticates the USB set-top box using a smart card, and if so, the DRM module included in the USB set-top box can decode the DRM broadcast content into the broadcast content. . When the DRM module transmits a DRM decoding code capable of decoding the DRM broadcast content to the DRM agent 312, the DRM agent 312 receives it and decodes the DRM broadcast content into broadcast content.

The CAS Agent 313 decodes CAS broadcast content. That is, upon receiving the CAS broadcast content, the USB set-top box authenticates the USB set-top box using a smart card, and if so, the CAS module included in the USB set-top box can decode the CAS broadcast content into the broadcast content. . When the CAS module transmits the CAS decoding code capable of decoding the CAS broadcast content to the CAS Agent 313, the CAS Agent 313 receives it and decodes the CAS broadcast content into the broadcast content.

The DVB-SI parser 314 parses Digital Video Broadcasting-Service Information (DVB-SI), which is broadcast content service information provided according to broadcast content, and provides an EPG (Electronic Program Guide).

The UI configuration unit 315 performs a function of configuring the EPG as a UI to provide the user with the EPG parsed by the DVB-SI parser 314.

The USB interface 370 performs an interface between the PC 300 and the USB set top box 200 connected thereto.

The input module 350 performs a function of receiving a command for controlling the USB set-top box 200 and the PC 300. For example, the input module 350 may be a mouse, a keyboard, or a keyboard.

The output module 330 outputs the broadcast content according to the execution of the broadcast content player 311. Audio data constituting the broadcast content may be output through a speaker and video data may be output through a monitor.

On the other hand, more preferably, the PC 300 according to an embodiment of the present invention may further include a plug and play. Plug and play is a device that can recognize what kind of hardware it is when additional hardware is attached to the PC. That is, as soon as a peripheral device is plugged in, it is immediately available for play. Technically, it defines the principle that software can communicate with all devices connected to a PC. In order to install a peripheral device in a computer, a complicated installation process was required depending on the type of device, and plug and play was prepared and shortened by the manufacturing company in advance so that the user can easily install and use it without knowing the installation method. When the USB set-top box 200 is connected to the PC 300 through the plug and play, the set-top box application 310 may be automatically executed.

4 and 5 illustrate a method of executing a portable USB set-top box including a smart card according to an embodiment of the present invention.

First, the USB set-top box 200 including the smart card 100 performs a USB set-top box connection step (S100) connected to a PC. 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, the smart card 100 included in the USB set-top box 200 performs an authentication step (S200) for authenticating the USB set-top box 200.

In the authentication step (S100), the smart card 100 authenticates the USB set-top box 200 by using a unique ID and a unique key corresponding to the unique ID to identify the smart card, more specifically, a unique key -SC storage step (S210), authentication code-SC generation step (S220), authentication code-SC transmission step (S230) and the authentication step (S240) can be performed.

In the unique key-SC storage step (S210), 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 the smart card consisting of region, manufacturer, date of manufacture, serial number.

In the authentication code-SC generation step (S220), 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 that carries the smart card as a result of the smart card's own operation.

In the authentication code-SC transmission step (S230), when the smart card 100 transmits the encrypted authentication code-SC to the authentication server 400, the authentication server 400 authenticates the encrypted authentication code-SC to obtain an authentication result. Send to 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. Then, after receiving the encrypted authentication code-SC transmitted by the smart card (S231) and authenticating the encrypted authentication code-SC using the unique key-CS (S232).

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 (S230), the authentication server 400 generates an encrypted authentication code-CS using the Koyuki-CS, and transmits the encrypted authentication code-CS to the smart card (S233). The smart card 100 receives the authentication code-CS and authenticates the authentication code-CS encrypted using the unique key-SC stored in the smart card (S234), so that the authentication server and the smart card can mutually authenticate.

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 step (S240) the smart card 100 receives the authentication result to authenticate the USB set-top box 200.

Next, the PC 300 performs a broadcast content receiving step S300 of receiving broadcast content. The PC 300 may receive broadcast content when the smart card authenticates the USB set-top box. The broadcast content receiving step (S300) is executed when the smart card 100 authenticates the USB set-top box 200, thereby preventing duplication of the USB set-top box 200. That is, a USB set-top box has a lower manufacturing cost than a conventional set-top box in a hardware form, is easily acquired by a device, and can be used through a PC. Therefore, the USB set-top box 200 is equipped with a smart card 100, through which the authentication can be achieved by performing authentication of the USB set-top box can be achieved.

On the other hand, the portable USB set-top box execution method comprising a smart card according to an embodiment of the present invention, after the broadcast content receiving step (S300), the broadcast content execution step that the PC 300 executes and outputs the broadcast content ( S400) may be further performed. The PC 300 outputs the executed broadcast content as video data through a displayable device such as a monitor connected to the PC 300, and outputs audio data through a device capable of sound output such as a speaker connected to the PC 300. can do.

Meanwhile, according to an embodiment of the present invention, the broadcast content may be DRM broadcast content protected by Digital Rights Management (DRM). In this case, when the smart card 100 authenticates the USB set-top box 200, the smart card 100 further performs an authentication flag adding step of adding an authentication flag indicating the authentication of the USB set-top box. When the authentication flag is added, the PC 300 may further perform a broadcast content decoding step of decoding the DRM broadcast content into broadcast content. That is, when security is required, such as DRM broadcast content, by receiving the broadcast content after authenticating the USB set-top box 200, using an unauthenticated USB set-top box 200 to illegally use content not protected by DRM. It is possible to block the possibility at its source.

In addition, according to an embodiment of the present invention, the broadcast content may be CAS broadcast content protected by a Conditional Access System (CAS). In this case, when the smart card 100 authenticates the USB set-top box 200, an authentication flag adding step of adding an authentication flag indicating authentication of the USB set-top box may be further performed. In other words, if security is required, such as CAS broadcast content, by receiving the broadcast content after authenticating the USB set-top box 200, the unauthorized use of the content that is not protected by CAS using the USB set-top box 200 is illegal. It is possible to block the possibility at its source.

Meanwhile, in the method of executing the USB set-top box according to the embodiment of the present invention, the DVB-SI parsing step may be further performed after the broadcast content receiving step S300.

In the DVB-SI parsing step, the PC 300 parses Digital Video Broadcasting-Service Information (DVB-SI), which is service information provided according to broadcast content, and provides the subscriber as an EPG (Electronic Program Guide).

After the DVB-SI parsing step, the PC 300 may further perform a UI configuration step of configuring the EPG as a UI to provide the EPG parsed in the DVB-SI parsing step to the user through the UI.

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: set-top box authentication module
120: smart card memory
130: subscriber authentication module
140: DRA module
150: CAS module
200: USB Set Top Box
210: USB Control Module
230: set-top box memory
250: IR receiving module
300: PC
310: set-top box application
311: broadcast content player unit
312: DRM Agent
313: CAS Agent
314: DVB-SI parser
315: UI component
330: output module
350: input module
370: USB interface
400: authentication server
500: broadcast content providing server

Claims (26)

A USB set-top including a smart card for storing a unique ID, which is a unique identification code for identifying a smart card, and for authenticating a USB set-top box using the unique ID and a unique key-SC corresponding to the unique ID. box;
A PC including a set-top box application for receiving broadcast content and executing the broadcast content through a player when the USB set-top box is authenticated; And
Storing a unique key-CS having the same value as the unique key-SC stored in the smart card, receiving an encrypted authentication code-SC from the smart card, and using the unique key-CS -Authentication server for authenticating SC;
The smart card, the smart card memory for storing the unique ID and the unique key-SC; 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. Portable set-top box system including a smart card, characterized in that comprises a; set-top box authentication module for authentication.
delete The method of claim 1,
The authentication server generates an encrypted authentication code-CS using the unique key-CS stored in the authentication server, and transmits the encrypted authentication code-CS to the smart card.
The set-top box authentication module receives the encrypted authentication code-CS and authenticates the encrypted authentication code-CS using the unique key-SC to mutually authenticate the authentication server and the smart card. Portable USB set-top box system equipped with a smart card.
The method of claim 1, wherein the smart card,
And a subscriber authentication module for generating a signature using the unique key-SC for the ID and password received from the subscriber and transmitting the signature to the authentication server to authenticate the subscriber of the USB set-top box. Portable USB set-top box system equipped with a smart card.
The method of claim 1,
The broadcast content is DRM broadcast content protected by DRM (Digital Rights Management),
The USB set-top box, a portable USB set-top box system equipped with a smart card, characterized in that it further comprises a; DRM module for decoding the DRM broadcast content into the broadcast content.
The method of claim 5, wherein
The set-top box authentication module, when authenticating the USB set-top box, adds an authentication flag indicating the authentication of the USB set-top box,
The DRM module is mounted on the smart card in the form of an applet, and is activated when the authentication flag is added.
The method of claim 5, wherein
The set top box application further includes a DRM agent,
The DRM module, when authenticating the USB set-top box, transmits a DRM decryption code to the DRM agent, which allows the DRM agent to decrypt the DRM broadcast content.
The DRM Agent is a portable USB set-top box system equipped with a smart card, characterized in that for decoding the DRM broadcast content into the broadcast content using the DRM decoding code.
The method of claim 1,
The broadcast content is CAS broadcast content protected by a CAS (Conditional Access System),
The USB set-top box, a portable USB set-top box system equipped with a smart card, characterized in that it further comprises; a CAS module that can decode the CAS broadcast content to the broadcast content.
The method of claim 8,
The set-top box authentication module, when authenticating the USB set-top box, adds an authentication flag indicating the authentication of the USB set-top box,
The CAS module is mounted on the smart card in the form of an applet, and is activated when the authentication flag is added.
The method of claim 8,
The set top box application further includes a CAS agent,
The CAS module, when authenticating the USB set-top box, transmits a CAS decryption code to the CAS Agent, which allows the CAS Agent to decrypt the CAS broadcast content.
The CAS agent is a portable USB set-top box system equipped with a smart card, characterized in that for decoding the CAS broadcast content using the CAS decoding code.
The method of claim 1, wherein the set top box application,
A DVB-SI parser configured to parse digital video broadcast-service information (DVB-SI), which is broadcast content service information provided according to the broadcast content, to provide an EPG (Electronic Program Guide) to a subscriber; Portable USB set-top box system equipped with a smart card, characterized in that the configuration.
The method of claim 11, wherein the set-top box application,
And a UI component configured to configure the EPG as a UI to provide the EPG parsed by the DVB-SI parser to a user through a UI. Set Top Box System.
The method of claim 1, wherein the set top box application,
Portable USB set-top box system equipped with a smart card, characterized in that comprises a broadcast content player for executing the broadcast content.
The method of claim 1, wherein the PC,
An input module for receiving a command to control the USB set-top box and the PC; An output module for outputting the broadcast content; And a USB interface for performing an interface with the USB set-top box.
The method of claim 14, wherein the input module,
Portable USB set-top box system including a smart card, characterized in that for receiving a control command to control the PC by a keyboard, a mouse or a remote control.
The method of claim 1, wherein the PC,
When the USB set-top box is connected, a portable USB set-top box system including a smart card, characterized in that for automatically running the set-top box application through plug and play.
The method of claim 1, wherein the USB set-top box,
A control module for controlling the USB set-top box; And a set-top box memory configured to download and store the broadcast contents.
The method of claim 1, wherein the USB set-top box system,
Portable USB set-top box system including a smart card, characterized in that it further comprises; broadcast content providing server for providing the broadcast content to the USB set-top box.
In the method of running a portable USB set-top box equipped with a smart card,
A USB set-top box connection step of connecting the USB set-top box including the smart card to a PC;
A unique key-SC storing step of storing, by the smart card, a unique ID for identifying the smart card 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;
An authentication step of the smart card receiving the authentication result of the authentication server to authenticate the USB set-top box;
Receiving, by the PC, the broadcast content when the smart card authenticates the USB set-top box; And
And executing, by the PC, the broadcast contents to execute and output the broadcast contents.
delete The method of claim 19, 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;
The authentication server, authentication code-SC authentication step for authenticating the encrypted authentication code-SC using the unique key-CS; Portable card set-top box running method comprising a smart card.
The method of claim 21, wherein after the authentication code-SC transmission step,
An authentication code-CS transmission step of the authentication server generating an encrypted authentication code-CS using the unique key-CS, and transmitting the encrypted authentication code-CS to the smart card;
The smart card receiving the encrypted authentication code-CS and authenticating the authentication server by authenticating the encrypted authentication code-CS using the unique key-SC; Portable USB set-top box running method comprising a smart card characterized in that.
The method of claim 19,
The broadcast content is a DRM broadcast content protected by DRM (Digital Rights Management),
An authentication flag adding step of adding, by the USB set-top box, an authentication flag indicating an authentication of the USB set-top box after the authentication step when the USB set-top box is authenticated;
And after the broadcast content receiving step, the PC further decoding the DRM broadcast content to decode the DRM broadcast content into the broadcast content when the authentication flag is added. How can I run a USB set-top box?
The method of claim 19,
The broadcast content is CAS broadcast content protected by a CAS (Conditional Access System),
An authentication flag adding step of adding, by the USB set-top box, an authentication flag indicating an authentication of the USB set-top box after the authentication step when the USB set-top box is authenticated;
And after the broadcast content receiving step, the PC further performs a CAS broadcast content decoding step of decoding the CAS broadcast content into the broadcast content when the authentication flag is added. How can I run a USB set-top box?
The method of claim 19, wherein after the broadcast content receiving step,
Parsing (DVB-SI) of the PC, parsing Digital Video Broadcasting-Service Information (DVB-SI), which is broadcast content service information provided according to the broadcast content, to provide an EPG (Electronic Program Guide) to a subscriber; Portable USB set-top box running method comprising a smart card, characterized in that further performing.
The method of claim 25, wherein after the DVB-SI parsing step,
And the PC further comprises a UI configuration step of configuring the EPG as the UI to provide the EPG parsed in the DVB-SI parsing to a user through a UI. How can I run a USB set-top box?

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