KR20110069381A - Iptv service system and method thereof using mobile iptv service storage apparatus - Google Patents

Abstract

PURPOSE: An IPTV service system and method thereof which uses a mobile IPTV service storing unit are provided to normally process IPTV content through the operation of a program of a reproducer. CONSTITUTION: An IPTV service storing unit(200) supplies service execution data to a connecting unit. A reproducing unit(100) stores service execution data of the IPTV service storing unit. The reproducing unit authenticates authentication information of the IPTV service storing unit. The reproducing unit reproduces content according to a selected IPTV broadcasting service.

Description

IPTV service system and method using mobile IPV service storage device {IPTV SERVICE SYSTEM AND METHOD THEREOF USING MOBILE IPTV SERVICE STORAGE APPARATUS}

The present invention relates to an IPTV service system using a mobile IPTV service storage device. More particularly, the present invention relates to an IPTV service system, which stores service execution data for processing a content according to an IPTV broadcast service in a mobile storage device and reproduces a video. By connecting the storage device to the playback device, the playback device plays the IPTV contents using the service execution data of the storage device, so that the portable storage device can be used to easily use the IPTV broadcasting service without set-top boxes in various types of playback devices. The present invention relates to an IPTV service system and method using a portable IPTV service storage device, an operation method of an IPTV service storage device and an IPTV service storage device, and a content reproduction method of a playback device and a playback device.

In order to use the existing IPTV service, the set-top box must be connected to the TV device in order to play the IPTV broadcast, and in the configuration in which the TV device and the set-top box are connected, the viewer can watch the IPTV broadcast through the TV device.

As such, the current IPTV service requires a set-top box provided by a TV and a service company. However, currently, set-top boxes do not support connecting to multiple or various types of TV devices or monitors, so in fact, the TV devices and set-top boxes must exist 1: 1 so that IPTV service can be used.

On the other hand, in recent years, users are increasing the number of playback devices (eg, PC, PMP, etc.) that can play a video such as dramas, movies, lectures.

Accordingly, the present application intends to propose an environment in which IPTV services can be easily and conveniently used in various types of playback devices (eg, PCs, PMPs, etc.).

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide service execution data and user authentication for processing content to be played back according to an IPTV broadcasting service when an IPTV service storage device and a playback device are connected. Providing the service execution data to the playback device to which the IPTV service storage device which stores the authentication information for performing the operation, wherein the playback device stores / installs the service execution data, and operates by the stored service execution data. By the playback device, the playback device requests / obtains authentication information from the IPTV service storage device, performs authentication based on the authentication information, and if the playback result is a legitimate authentication, the playback device is operated by the service execution data. Receive predetermined content according to the IPTV broadcasting service selected by Generated by the IPTV service can provide a system and method using a mobile IPTV service storage device for processing and / or reproducing to, it is to make it easy to use the IPTV broadcasting service without a set-top box in a variety of reproduction devices.

The present invention has been made in view of the above circumstances, and another object of the present invention is to provide pre-stored service execution data for processing content to be played back according to an IPTV broadcasting service when connected to an external playback device. And an operation method of an IPTV service storage device and an IPTV service storage device which provide pre-stored authentication information for performing user authentication to the playback device according to a request from the connected playback device. It is to support the creation of an environment that can easily use IPTV broadcasting service without a set-top box in a playback device.

The present invention has been made in view of the above circumstances, and another object of the present invention is to store / install service execution data provided from the connected IPTV service storage device when connected to an external IPTV service storage device. The present invention provides a playback device and a content playback method of a playback device for processing / reproducing a predetermined content according to an IPTV broadcasting service by an operation based on the service execution data. It is to support the creation of an environment where services can be easily used.

An IPTV service system using a mobile IPTV service storage device according to a first aspect of the present invention for achieving the above object includes service execution data for processing a content according to an IPTV broadcast service and authentication information for performing user authentication. An IPTV service storage device for storing and providing the service execution data to a connected device and providing the authentication information according to a request from the connected device; And store the service execution data provided from the IPTV service storage device to be connected, perform authentication based on the authentication information obtained from the IPTV service storage device by operation of the service execution data, and obtain a valid authentication result. In this case, the playback apparatus includes a playback device that receives / processes predetermined content according to the IPTV broadcasting service selected by the user so as to be played back.

Preferably, it stores / manages authentication information including at least one of a pre-allocated authentication key and an authentication value corresponding to each of the IPTV service storage devices, and when an authentication request is received from the playback device, the corresponding request according to the authentication request. Comparing the authentication information with the corresponding authentication information of the corresponding IPTV service storage device, it may further include a CAS server for providing an authentication result according to the comparison to the playback device.

In accordance with a second aspect of the present invention, an IPTV service storage device includes: a connection portion for connecting to an external playback device; A service execution data management unit which stores service execution data for processing content according to an IPTV broadcasting service and provides the service execution data to the playback apparatus when the playback apparatus is connected through the connection unit; And an authentication unit for storing authentication information for performing user authentication and providing the authentication information in response to a request from the connected playback apparatus.

Preferably, the service execution data management unit, a driver program for supporting the interworking with the IPTV service storage device itself, a security processing program for performing user authentication, and for processing to reproduce the content according to the IPTV broadcast service The service execution data including at least one of a video / audio processing program and a media player program may be stored.

Preferably, when the playback device is connected through the connection unit, the service execution data management unit provides the driver program to the playback device, and after the driver program installation is completed, the security processing program and the video / audio processing program. And at least one of the media player program to the playback device.

Preferably, the authentication unit, a smart card for storing the authentication information, including at least one of a pre-allocated authentication value generated based on a pre-allocated authentication key, module information and version information of the media player program, and pre-allocated authentication values. It may include.

A playback apparatus according to a third aspect of the present invention for achieving the above object includes a connection for connecting to an external IPTV service storage device; A memory unit for storing service execution data provided from the connected IPTV service storage device; And an execution data operation unit for processing to play a predetermined content according to the IPTV broadcasting service by the operation by the service execution data.

Preferably, the execution data operation unit recognizes the connected IPTV service storage device by an operation by the driver program as the driver program included in the service execution data is installed, and cooperates with the IPTV service storage device. IPTV broadcasting service by an operation by a driver driver to perform, a security processing unit to perform user authentication by an operation by a security processing program included in the service execution data, and an operation by a video / audio processing program included in the service execution data. And a video / audio processing unit for processing the content according to the IPTV broadcasting service selected by the user as the media player program included in the service execution data is installed. In conjunction with the processing unit It may include at least one of a media player unit.

Preferably, the media player unit requests the security processing unit to perform authentication by acquiring authentication information from the connected IPTV service storage device, and processes predetermined content according to an IPTV broadcasting service received according to selection by a user. The video / audio processing unit may be requested to reproduce the content processed by the video / audio processing unit.

Preferably, the security processing unit, by requesting the authentication information to the IPTV service storage device, and requests an authentication to the external CAS server based on the obtained authentication information, the authentication result from the CAS server according to the authentication request If is returned, the reception permitting intermediate key can be obtained based on the authentication result.

Preferably, the video / audio processing unit demodulates the content according to the IPTV broadcasting service, and if there is an Entitlement Control Message (ECM) received corresponding to the content, the ECM using the reception intermediate key. The content may be descrambled based on a control word (CW) obtained from the.

According to a fourth aspect of the present invention, an IPTV service method using a mobile IPTV service storage device includes: connecting an IPTV service storage device and a playback device; Providing the service execution data to the playback apparatus to which the IPTV service storage device which stores service execution data for processing content according to the IPTV broadcasting service and the authentication information for performing user authentication is connected; Storing / installing, by the playback device, the service execution data provided from the IPTV service storage device; Requesting / acquiring authentication information from the IPTV service storage device by the playback device by the stored service execution data and performing authentication based on the authentication information; And if it is a legitimate authentication result, by the operation of the stored service execution data, the playback apparatus receives and processes / reproduces the predetermined content according to the IPTV broadcasting service selected by the user so that it can be played back.

Preferably, the CAS server storing / managing authentication information including at least one of a pre-allocated authentication key and an authentication value corresponding to each IPTV service storage device receives the authentication request from the playback device. Comparing the authentication information according to the authentication information of the corresponding IPTV storage device; And providing, by the CAS server, an authentication result according to the comparison to the playback apparatus.

According to a fifth aspect of the present invention, there is provided a method of operating an IPTV service storage device, including: a connection step of connecting to an external playback device; A service execution data providing step of providing pre-stored service execution data for processing playback of contents according to an IPTV broadcasting service to the playback apparatus when the playback apparatus is connected; And an authentication information providing step of providing previously stored authentication information for performing user authentication to the playback device according to a request from the connected playback device.

Preferably, the service execution data providing step, if the playback device is connected, providing a driver program for supporting the interworking with the IPTV service storage device itself, a security processing program for performing user authentication, and IPTV broadcasting And providing at least one of a video / audio processing program and a media player program for processing the content according to the service to be playable.

Preferably, the authentication information may include at least one of a pre-allocated authentication key, an authentication value generated based on module information and version information of the media player program.

According to a sixth aspect of the present invention, there is provided a method of reproducing a content of a playback device. A service execution data management step of storing / installing service execution data provided from the connected IPTV service storage device; And a content processing step of processing / reproducing the predetermined content according to the IPTV broadcasting service by the operation by the service execution data.

Preferably, the service execution data management step includes storing / installing a driver program provided from the IPTV service storage device, recognizing the connected IPTV service storage device by operation by the driver program, and storing the IPTV service storage. Interworking with the device, a security processing program for performing user authentication provided from the IPTV service storage device, a video / audio processing program for processing content according to an IPTV broadcasting service, and an IPTV broadcasting selected by a user. The method may include storing / installing at least one of the security processing program and the media player program linked with the video / audio processing program to play the content according to the service.

Preferably, by the operation by the security processing program, requesting the authentication information to the IPTV service storage device, and obtaining and requesting authentication to an external CAS server based on the obtained authentication information; If the legitimate authentication result is returned from the CAS server according to the authentication request, the method may further include acquiring an allowable intermediate key based on the authentication result.

Preferably, the content processing step, demodulating the content according to the IPTV broadcasting service received according to the user's selection, and if the reception of the Entitlement Control Message (ECM) received corresponding to the content is allowed The method may include obtaining a control word CW from the ECM using an intermediate key, descrambling the content based on the control word CW, and reproducing the processed content.

Accordingly, an IPTV service system and method using a mobile IPTV service storage device of the present invention store service execution data including various programs necessary for processing a content according to an IPTV broadcasting service in a playback device capable of playing a video. By connecting a mobile IPTV service storage device, IPTV content can be normally processed / reproduced through operations of programs installed in a playback device provided with service execution data from the IPTV service storage device.

In addition, the IPTV service system and method using the mobile IPTV service storage device of the present invention, the authentication information is stored in a secure hardware chip such as a smart card in the mobile IPTV service storage device, and the IPTV content is processed in the connected playback device. By performing authentication based on the authentication information of the IPTV service storage device in the playback, it is possible to prevent illegally multiple / use of service execution data of the IPTV service storage device.

Accordingly, an IPTV service system and method using a mobile IPTV service storage device according to the present invention can be variously used by using a mobile IPTV service storage device 200 that stores various programs necessary to process content according to an IPTV broadcast service. In the type of playback apparatus 100, an IPTV broadcasting service can be easily used without a set top box.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a diagram illustrating an IPTV service system using a mobile IPTV service storage device according to an exemplary embodiment of the present invention.

As shown in FIG. 1, an IPTV service system using a mobile IPTV service storage device according to the present invention stores service execution data for processing content to be reproduced according to an IPTV broadcast service and authentication information for performing user authentication. And providing the service execution data to a connected device (eg, playback device 100) and providing the authentication information according to a request from the connected device (eg, playback device 100). 200 and the service execution data provided from the connected IPTV service storage device 200, and based on the authentication information obtained from the IPTV service storage device 200 by an operation by the service execution data. Authentication is performed, and if it is a legitimate authentication result, processing is made to receive and play predetermined content according to the IPTV broadcasting service selected by the user. And a reproducing apparatus 100 for reproducing.

Here, the playback apparatus 100 may be various types of devices such as a PC, a notebook computer, a PMP, a PDA, a smart phone, and the like.

The IPTV service storage device 200 is a device that can be connected / connected with the playback device 100 and stores service execution data including various programs capable of processing an IPTV broadcast service and authentication information for performing user authentication. . When the IPTV service storage device 200 is connected / connected with the playback device 100, the IPTV service storage device 200 automatically provides service execution data to the connected playback device 100, and according to a request from the connected playback device 100. Authentication information can be provided.

The IPTV service storage device 200 preferably includes a hardware chip having security such as a smart card, and stores authentication information therein, and is preferably a USB device.

The playback device 200 is a device that can be connected to / connected with the IPTV service storage device 200 and may be various types of devices such as a PC, a notebook computer, a PMP, a PDA, a smart phone, and the like. Built-in communication interface function to support the content can be received from the external content service server (eg, IPTV broadcasting server, VOD providing server) through the network according to the IPTV broadcasting service.

When the playback apparatus 200 is connected / connected with the IPTV service storage device 200, the service execution data provided from the connected IPTV service storage device 200 is stored and various programs of the stored service execution data are automatically installed. .

Accordingly, the playback apparatus 200 obtains the authentication information from the IPTV service storage device 200 by the operation of the installed service execution data, requests an authentication to the external CAS server 300 based on the authentication information, and responds to it. An authentication process may be performed in which an authentication result is returned, and when the returned authentication result is a legitimate authentication result, the predetermined content according to the IPTV broadcasting service selected by the user may be received and processed / reproduced.

As such, the playback apparatus 200 performs user authentication and performs IPTV by service execution data provided from the connected / connected IPTV service storage device 200, that is, service execution data for reproducing contents according to the IPTV broadcasting service. The content according to the broadcast service can be processed and reproduced.

Meanwhile, the CAS server 300 stores / manages authentication information including at least one of a pre-allocated authentication key and an authentication value corresponding to each of the IPTV service storage devices 200.

In order to process the authorized user authentication, an authentication key and an authentication value corresponding to each IPTV service storage device 200 need to be generated and registered in advance. Accordingly, the CAS server 300 generates an authentication key and an authentication value for identifying each IPTV service storage device 200. In particular, the CAS server 300 preferably generates an authentication key for identifying a secure hardware chip (eg, smart card) in which the authentication information is stored in each IPTV service storage device 200.

Here, the CAS server 300 generates module information of a predetermined program (eg, media player program) of service execution data stored in the IPTV service storage device 200 when generating an authentication value corresponding to the IPTV service storage device 200. It is preferable to generate a signing value using the version information.

Accordingly, the CAS server 300 may store / manage authentication information generated corresponding to each IPTV service storage device 200, that is, authentication information including an already assigned authentication key and an authentication value. Of course, each IPTV service storage device 200, before being released as a product, the authentication information including the corresponding authentication key and authentication value generated / assigned by the CAS server 300 is secure hardware chip (eg smart Will be released on the card.

When the authentication request is received from the playback apparatus 100, the CAS server 300 compares the corresponding authentication information according to the received authentication request with the corresponding authentication information of the corresponding IPTV service storage device 100, according to the comparison. The authentication result is provided to the playback device 100.

That is, the CAS server 300, the authentication request including the authentication information (for example, authentication key, authentication value) obtained from the IPTV service storage device 200 connected to the playback device 100 from the playback device 100 When received, the authentication information of the corresponding IPTV service storage device 100 is searched based on the corresponding authentication information (eg, authentication key, authentication value) according to the received authentication request. For example, the CAS server 300 may search for the authentication information for each IPTV service storage device, which is stored / managed, and the corresponding authentication information according to the received authentication request, particularly the authentication information having the same authentication key.

Accordingly, the CAS server 300 compares the corresponding authentication information according to the authentication request with the authentication information of the searched IPTV service storage device 100, and provides the authentication result according to the comparison to the playback device 100. For example, CAS server 300 compares the authentication information, the authentication key and the authentication value of the authentication information of the IPTV service storage device 100, the authentication key and the authentication value of the authentication information according to the authentication request is retrieved; If it is the same, it is determined that the reception is allowed, and a valid authentication result indicating the reception can be provided to the playback apparatus 100. At this time, the CAS server 300, it is possible to provide to the playback apparatus 100 a credential management message (EMM) including a reception allowance intermediate key as a legitimate authentication result indicating reception permission.

Hereinafter, the configuration of the IPTV service storage device 200 according to the present invention will be described in more detail with reference to FIG. 2.

The IPTV service storage device 200 according to the present invention stores a connection unit 250 for connecting to an external playback device 100 and service execution data for processing content to be reproduced according to an IPTV broadcast service. When the reproducing apparatus 100 is connected through the reproducing apparatus 250, the service execution data management unit 210 for providing the service execution data to the reproducing apparatus 100, and storing the authentication information for performing user authentication, are connected to the reproducing apparatus ( 100) includes an authentication unit 230 for providing the authentication information in response to a request from the.

The connection unit 250 is a function unit that supports connection / connection with the playback device 100, and may preferably include a USB port that supports connection with the playback device 100 through USB communication.

The service execution data management unit 210 stores service execution data including various programs necessary for processing the content according to the IPTV broadcasting service, and automatically plays when the playback device 100 is connected through the connection unit 250. The service execution data is provided to the playback device 100.

In more detail, the service execution data stored in the service execution data management unit 210 may include a driver program that supports interworking with the IPTV service storage device 200 itself, a security processing program for performing user authentication, It may include at least one of a video / audio processing program and a media player program for processing the content according to the IPTV broadcast service.

Of course, the service execution data, in addition to the update program for executing the update automatically when the data or program stored in the IPTV service storage device 200, the content information and real-time broadcasting related information of the content according to the IPTV broadcasting service ( For example, to enable bi-directional data processing with an additional service linked program and guide processing program for processing / displaying EPG, and a content providing server (eg, an IPTV broadcasting server or a VOD providing server) that provided contents according to an IPTV broadcasting service. It may further include a bidirectional data processing program to support.

Thus, the service execution data management unit 210, when the playback device 100 is connected / connected via the connection unit 250, the driver program necessary for the normal operation between the playback device 100 and the IPTV service storage device 200 Is first provided to the playback apparatus 100. This is provided to the playback apparatus 100 a driver program for executing elements necessary for providing an IPTV broadcast service such as a memory area of the IPTV service storage device 200 in which service execution data is stored and an authentication unit 230. Such driver programs are typically USB drivers and smart card drivers.

When a driver program is provided to the playback device 100 and is successfully installed in the playback device 100, the service execution data management unit 210 stores the remaining programs among the service execution data, that is, the security processing program and the video / audio processing program. And service execution data including at least one of the media player program, and further including the update program and the additional service linkage program, the guide processing program, and the bidirectional data processing program. 100).

As such, the method of providing the service execution data to the playback apparatus 100 by the service execution data management unit 210 is automatically executed through auto-run.

The authenticator 230 stores authentication information for performing user authentication and provides the authentication information to the playback apparatus 100 according to a request from the connected playback apparatus 100. The authenticator 230 is preferably a smart card having a security hardware chip.

That is, the authentication unit 230 stores the authentication information including at least one of a pre-assigned authentication key and an authentication value, and when the authentication information is requested from the connected playback apparatus 100, the authentication information is reproduced according to the request. It may be a smart card provided to (100).

Here, the authentication value is a value that is generated based on module information and version information of a predetermined program (eg, media player program) among service execution data stored in the service execution data management unit 210 and is pre-assigned.

Accordingly, the portable IPTV service storage apparatus 200 according to the present invention stores service execution data including various programs necessary for processing the contents according to the IPTV broadcasting service so that the contents can be played back, and is connected to the playback apparatus 100. By providing the service execution data, the various playback apparatuses 100 which do not have the function of processing the content according to the received IPTV broadcasting service can be normally processed / played back through the operation according to the service execution data.

In addition, the IPTV service storage device 200 according to the present invention, by storing the authentication information in a secure hardware chip, such as a smart card, processing the content through the operation according to the service execution data in the connected playback device 100 / In playing, the authentication is performed based on the authentication information of the IPTV service storage device 200.

Hereinafter, the configuration of the playback apparatus 100 according to the present invention will be described in detail with reference to FIG. 3.

The playback apparatus 100 according to the present invention includes a communication interface 110 for supporting Internet-based communication, a connection unit 150 for connecting to an external IPTV service storage device 200, and an IPTV service storage connected thereto. The memory unit 140 storing the service execution data provided from the device 200, and the execution data operation unit 130 for processing to play the predetermined content according to the IPTV broadcast service by the operation by the service execution data Include.

The communication interface unit 110 is a communication interface function that supports communication based on the Internet, and receives content corresponding to an IPTV broadcasting service from an external content service server (eg, an IPTV broadcasting server or a VOD providing server) through a network. Can be.

The connection unit 150 is a function unit that supports connection / connection with the IPTV service storage device 200, and preferably includes a USB port that supports connection with the IPTV service storage device 200 through USB communication. Can be.

The memory unit 140 may store service execution data provided from the connected IPTV service storage device 200, and may store content received through the communication interface unit 110.

The execution data operation unit 130 processes the predetermined content corresponding to the IPTV broadcasting service to be reproduced by the operation based on the service execution data.

More specifically, the execution data operation unit 130, the driver program necessary for the normal operation between the playback device 100 and the IPTV service storage device 200 is provided from the IPTV service storage device 200, the memory unit ( 140), install the driver program. Such driver programs are typically USB drivers and smart card drivers. Accordingly, the execution data operation unit 130 recognizes the IPTV service storage device 200 connected through the connection unit 150 by an operation by the installed driver program and performs interworking with the IPTV service storage device 200. The driver driving unit 134 is provided.

Then, as the driver program is successfully installed, the execution data operation unit 130, if the remaining programs of the service execution data is provided from the IPTV service storage device 200 and stored in the memory unit 140, It performs the function according to the operation.

That is, as the driver program is successfully installed, the security processing program and the video / audio processing program and the media player program are provided from the IPTV service storage device 200 to the memory unit 140 from the IPTV service storage device 200. When executed, the execution data operation unit 130 installs a security processing program, a video / audio processing program, and a media player program.

Thus, the execution data operation unit 130, the operation by the installed security processing program, by the security processing unit 136 to perform user authentication, and by the operation by the installed video / audio processing program, according to the IPTV broadcast service A video / audio processing unit 138 for processing content (for example, real-time broadcasting content or VOD content) to be reproduced is provided.

Then, the execution data operation unit 130, by the operation of the installed media player program, to play the content (eg, real-time broadcast content or VOD content) according to the IPTV broadcast service selected by the user of the playback device 100 A media player 132 interoperating with the security processor 136 and the video / audio processor 138 is provided.

Hereinafter, the playback apparatus 100 will be described in more detail with respect to the process of performing user authentication and processing to reproduce the content according to the IPTV broadcast service based on the service execution data in more detail.

The media player unit 132 requests the security processing unit 136 to perform authentication by acquiring authentication information from the connected IPTV service storage device 200 by an operation by the media player program.

The security processing unit 136 requests and obtains authentication information from the connected IPTV storage device 200 by an operation by the security processing program, and installs the authentication value of the obtained authentication information and the media player unit 132. The module information and version information of the media player program are compared. Here, the authentication value of the authentication information obtained from the IPTV service storage device 200 is generated based on the module information and the version information of the media player program provided from the IPTV service storage device 200, and thus, the media player unit 132 If the media player program installed in the) is a program provided and installed from the IPTV service storage device 200 that has obtained the authentication information, the authentication value of the authentication information obtained this time is the module of the media player program installed in the media player unit 132. Information and version information.

Accordingly, the security processing unit 136 compares the authentication value of the acquired authentication information with the module information and version information of the media player program installed in the media player unit 132, and as a result, the authentication value and the module information and version of the media player program. If the information is legitimately matched, the authentication request is made to the external CAS server 300 based on the obtained authentication information (authentication key and authentication value), and the authentication result is returned from the CAS server 300 in response to the authentication request. .

If it is determined that the security processing unit 136 is a legitimate authentication result indicating that the reception is allowed based on the authentication result returned from the CAS server 300 by an operation by the security processing program, the security processing unit 136 generates an intermediate key for reception based on this authentication result. Acquire. For example, when a certificate management message (EMM) is received from the CAS server 300 as a legitimate authentication result indicating that the reception is allowed, the security processing unit 136 uses the authentication key of the obtained authentication information to return the authentication result. That is, the reception allowance intermediate key can be obtained from the EMM.

The media player unit 132, when the content (eg, real-time broadcast content or VOD content) according to the IPTV broadcasting service is selected by the user of the playback device 100, delivers the selection fact to the communication interface 110 to communicate with the communication interface. The content is received through the unit 110 from an external content service server (eg, an IPTV broadcasting server, a VOD providing server) and stored in the memory unit 140.

Accordingly, the media player unit 132 requests the video / audio processing unit 138 to process content (for example, real-time broadcasting content or VOD content) stored in the memory unit 140, and the video / audio processing unit 138 The processed content is reproduced for the user to watch.

The video / audio processing unit 138 processes the content according to the IPTV broadcasting service to be reproduced by an operation by the installed video / audio processing program.

That is, when the video / audio processor 138 receives a request from the media player 132 to process predetermined content (for example, real-time broadcast content or VOD content), the video / audio processor 138 processes the corresponding content (for example, real-time broadcast content or VOD content). The demodulation process is performed according to the corresponding demodulation method.

In this case, when the received content is content to which a conditional access system (CAS) technology is applied, an entitlement control message (ECM) corresponding to the corresponding content may be received together with the corresponding content.

Accordingly, if there is an Entitlement Control Message (ECM) received corresponding to the corresponding content (for example, real-time broadcasting content or VOD content), the video / audio processing unit 138 accepts the reception obtained by the security processing unit 136 in the above. Based on the control word (CW) obtained from the ECM using the intermediate key, the corresponding content (eg, real-time broadcast content or VOD content) is descrambled.

Here, the operation of acquiring the control word (CW) from the ECM using the reception permitting intermediate key obtained by the security processing unit 136 includes the security processing unit 136, the video / audio processing unit 138, and the media player unit 132. At least one of the functional units may be performed according to the installed program.

Thus, as described above, the media player unit 132 will reproduce the demodulated and / or descrambled content in the video / audio processing unit 138 so that the user can view it.

Accordingly, the playback apparatus 100 according to the present invention, even if the configuration does not have a hardware processing function for the content according to the IPTV broadcast service, from the connected portable IPTV service storage device 200 according to the IPTV broadcast service By receiving and installing service execution data including various programs necessary for processing contents to be reproduced, the contents of the IPTV broadcasting service can be normally processed / played through the operation of the installed programs.

As described above, the IPTV service system using the mobile IPTV service storage device according to the present invention includes a variety of programs necessary for processing the content according to the IPTV broadcasting service in the playback apparatus 100 capable of playing video. By accessing the portable IPTV service storage device 200 storing the service execution data to the IPTV content through the operation of the programs installed in the playback device 100 receives the service execution data from the IPTV service storage device 200 is installed Can be processed / played back normally.

In addition, the IPTV service system using the mobile IPTV service storage device according to the present invention stores the authentication information in a secure hardware chip such as a smart card in the mobile IPTV service storage device 200, and is connected to the playback device 100. By performing authentication on the basis of the authentication information of the IPTV service storage device 200 in the processing / playback of the IPTV content, it is possible to prevent the plurality / use of the service execution data of the IPTV service storage device 200 illegally.

Accordingly, the IPTV service system using the mobile IPTV service storage device according to the present invention uses various types of mobile IPTV service storage devices 200 that store various programs necessary for processing the content according to the IPTV broadcast service. The playback device 100 of the present invention has an effect of easily using the IPTV broadcast service without a set-top box.

Hereinafter, an IPTV service method using a mobile IPTV service storage device according to a preferred embodiment of the present invention will be described with reference to FIGS. 4 to 6. Here, for the convenience of description, the configuration shown in FIGS. 1 to 3 described above will be described with reference to the corresponding reference numerals.

First, referring to FIG. 4, the IPTV service method using the mobile IPTV service storage device according to the present invention will be described. The IPTV service storage device 200 and the playback device 100 are interconnected (S10). At this time, it is preferable to be connected via mutual USB communication. Here, the playback apparatus 100 has a built-in communication interface function for supporting Internet-based communication to receive contents according to the IPTV broadcasting service from an external content service server (eg, an IPTV broadcasting server or a VOD providing server) through a network. As a device capable of doing this, it may be various types of devices such as a PC, a notebook computer, a PMP, a PDA, a smart phone, and the like.

The IPTV service storage device 200 automatically provides service execution data including various programs capable of processing an IPTV broadcast service to the connected playback device 100 when connected to the playback device 100 (S20). . Here, the IPTV service storage device 200 preferably includes a hardware chip having security such as a smart card, and stores authentication information therein, and is preferably a USB device.

Accordingly, the playback apparatus 100 stores the service execution data provided from the IPTV service storage device 200 and automatically installs various programs of the stored service execution data (S30).

Then, the playback apparatus 100 requests / acquires authentication information (for example, an authentication key and an authentication value) from the IPTV service storage device 200 by an operation based on the installed service execution data (S40). Based on the request for authentication to the external CAS server 300 (S45).

The CAS server 300 stores / manages authentication information including at least one of a pre-allocated authentication key and an authentication value corresponding to each of the IPTV service storage apparatuses 200 (S50).

In order to process the authorized user authentication, an authentication key and an authentication value corresponding to each IPTV service storage device 200 need to be generated and registered in advance. Accordingly, the CAS server 300 generates an authentication key and an authentication value for identifying each IPTV service storage device 200. In particular, the CAS server 300 preferably generates an authentication key for identifying a secure hardware chip (corresponding to the authentication unit 230 of FIG. 2) in which authentication information is stored in each IPTV service storage device 200. Do.

Here, the CAS server 300 generates module information of a predetermined program (eg, media player program) of service execution data stored in the IPTV service storage device 200 when generating an authentication value corresponding to the IPTV service storage device 200. It is preferable to generate a signing value using the version information.

Accordingly, the CAS server 300 may store / manage authentication information generated corresponding to each IPTV service storage device 200, that is, authentication information including an already assigned authentication key and an authentication value.

Of course, each IPTV service storage device 200, before being released as a product, the authentication information including the corresponding authentication key and authentication value generated / assigned by the CAS server 300 is secure hardware chip (eg smart Will be released on the card.

In addition, when an authentication request is received from the playback apparatus 100 through step S45, the CAS server 300 compares the corresponding authentication information according to the received authentication request with the corresponding authentication information of the corresponding IPTV service storage device 100. (S60), the authentication result according to the comparison is provided to the playback device 100 (S65).

That is, the CAS server 300, the authentication request including the authentication information (for example, authentication key, authentication value) obtained from the IPTV service storage device 200 connected to the playback device 100 from the playback device 100 When received, the authentication information of the corresponding IPTV service storage device 100 is searched based on the corresponding authentication information (eg, authentication key, authentication value) according to the received authentication request. For example, the CAS server 300 may search for the authentication information for each IPTV service storage device, which is stored / managed, and the corresponding authentication information according to the received authentication request, particularly the authentication information having the same authentication key.

Accordingly, the CAS server 300 compares the corresponding authentication information according to the authentication request with the authentication information of the searched IPTV service storage device 100, and provides the authentication result according to the comparison to the playback device 100. For example, CAS server 300 compares the authentication information, the authentication key and the authentication value of the authentication information of the IPTV service storage device 100, the authentication key and the authentication value of the authentication information according to the authentication request is retrieved; If it is the same, it is determined that the reception is allowed, and a valid authentication result indicating the reception can be provided to the playback apparatus 100. At this time, the CAS server 300, it is possible to provide to the playback apparatus 100 a credential management message (EMM) including a reception allowance intermediate key as a legitimate authentication result indicating reception permission.

As such, when the authentication result is returned from the CAS server 300 in response to the authentication request, the playback apparatus 100 determines whether the authentication result is a legitimate authentication result based on the operation by the installed service execution data (S70). In response to the legitimate authentication result indicating that the reception is allowed, the receiver obtains an allowable intermediate key from the authentication result (S80), receives predetermined content according to the IPTV broadcasting service selected by the user (S85), and processes it to be playable (S90). It may be (S95).

Of course, if it is determined in step S70 that the playback device 100 is an authentication result indicating that the reception is not allowed, the content according to the IPTV broadcasting service cannot be played using the programs of the service execution data installed in step S30. (S75). In this case, the playback apparatus 100 notifies the user by displaying the impossible playback due to the authentication failure, or repeats the above steps S40 and 45 to perform authentication information (for example, authentication) from the IPTV service storage device 200. It is also possible to re-obtain step S70 based on the authentication result returned by re-acquiring the key and the authentication value) and requesting authentication to the CAS server 300 again.

Hereinafter, a method of operating the IPTV service storage device 200 according to the present invention will be described with reference to FIG. 5.

The operation method of the IPTV service storage device 200 according to the present invention stores service execution data including various programs necessary for processing content to be reproduced according to an IPTV broadcast service, and provides authentication information for performing user authentication. Save (S100).

Here, the medium for storing the authentication information in the operating method of the IPTV service storage device 200 according to the present invention is a hardware chip with security, typically a smart card (corresponding to the authentication unit 230 of FIG. 2). It is preferable. Here, the authentication value is a value that is generated based on module information and version information of a predetermined program (eg, media player program) among prestored service execution data and is pre-assigned.

Then, the operation method of the IPTV service storage device 200 according to the present invention is connected to the external playback device 100 (S110).

Accordingly, the method of operating the IPTV service storage device 200 according to the present invention automatically provides service execution data to the playback device 100 when the playback device 100 is connected (S120).

More specifically, the service execution data previously stored in the operating method of the IPTV service storage device 200 according to the present invention includes a driver program for supporting interworking with the IPTV service storage device 200 and user authentication. It may include at least one of a security processing program for performing, a video / audio processing program for processing to play the content according to the IPTV broadcast service, and a media player program.

Of course, the service execution data, in addition to the update program for executing the update automatically when the data or program stored in the IPTV service storage device 200, the content information and real-time broadcasting related information of the content according to the IPTV broadcasting service ( For example, to enable bi-directional data processing with an additional service linked program and guide processing program for processing / displaying EPG, and a content providing server (eg, an IPTV broadcasting server or a VOD providing server) that provided contents according to an IPTV broadcasting service. It may further include a bidirectional data processing program to support.

Thus, the operating method of the IPTV service storage device 200 according to the present invention, when the playback device 100 is connected / connected, the driver required for normal operation between the playback device 100 and the IPTV service storage device 200. The program is first provided to the playback apparatus 100 (S123). That is, the driver program for executing elements necessary for providing the IPTV broadcasting service such as the memory area of the IPTV service storage device 200 in which the service execution data is stored and the authentication unit 230 of FIG. 2 is provided to the playback device 100. Will be. Such driver programs are typically USB drivers and smart card drivers.

When the driver program is provided to the playback device 100 and successfully installed in the playback device 100, the operation method of the IPTV service storage device 200 according to the present invention includes the remaining programs among the service execution data, that is, the security processing program. And service execution data including at least one of the video / audio processing program and the media player program, further including the update program and the supplementary service interworking program, the guide processing program, and the bidirectional data processing program. The service execution data is provided to the playback apparatus 100 (S126).

As such, the method of providing the service execution data to the playback apparatus 100 in the operating method of the IPTV service storage apparatus 200 according to the present invention is automatically executed through auto-run.

And, the operation method of the IPTV service storage device 200 according to the present invention, it is determined whether the authentication information request is received from the connected playback apparatus 100 (S130), if the authentication information request is received pre-stored authentication information Provided to the playback device 100 (S140).

Hereinafter, a content reproduction method of the playback device 100 according to the present invention will be described with reference to FIG. 6.

The content playback method of the playback device 100 according to the present invention is connected to an external IPTV service storage device 200 (S200).

Accordingly, the content playback method of the playback apparatus 100 according to the present invention stores service execution data provided from the connected IPTV service storage device 200, and various programs of the stored service execution data are automatically installed (S210). ).

More specifically, in the content playback method of the playback device 100 according to the present invention, the driver program necessary for the normal operation between the playback device 100 and the IPTV service storage device 200 is the IPTV service storage device 200. If provided and stored from, install the driver program (S213). Such driver programs are typically USB drivers and smart card drivers. Accordingly, the content reproduction method of the playback device 100 according to the present invention, by the operation by the installed driver program, to recognize the connected IPTV service storage device 200 and perform the interworking with the IPTV service storage device 200. Can be.

And, as the driver program is successfully installed, the content playback method of the playback apparatus 100 according to the present invention, if the remaining programs of the service execution data is provided and stored from the IPTV service storage device 200, these programs are installed (S216).

That is, the content playback method of the playback device 100 according to the present invention, the security processing program and the video / audio processing program and the media player program from the IPTV service storage device 200 from the IPTV service storage device 200 is provided and stored If so, install the security processing program and the video / audio processing program and the media player program.

Accordingly, the content playback method of the playback apparatus 100 according to the present invention includes a security processing function for performing user authentication by an operation by an installed security processing program and an IPTV broadcasting service by an operation by an installed video / audio processing program. It is equipped with a video / audio processing function for processing the content (eg, real-time broadcast content or VOD content) according to the playable.

In addition, the content playback method of the playback device 100 according to the present invention, by the operation of the media player program installed, the content (eg, real-time broadcast content or VOD according to the IPTV broadcast service selected by the user of the playback device 100) And a media player function linked with a security processing function and a video / audio processing function so that the content can be played back.

In the following, in the content playback method of the playback apparatus 100 according to the present invention, the process of performing the user authentication and processing to reproduce the content according to the IPTV broadcast service by service execution data to be described in more detail to be described in more detail. do.

The content playback method of the playback apparatus 100 according to the present invention interworks with a security processing function to perform authentication by acquiring authentication information from the connected IPTV service storage device 200 by an operation by a media player program.

Thus, the content playback method of the playback device 100 according to the present invention, by the operation by the security processing program, by requesting the authentication information to the connected IPTV service storage device 200 is obtained (S220). In the content reproduction method of the playback apparatus 100 according to the present invention, the authentication value of the acquired authentication information is compared with the module information and version information of the installed media player program, and the result of the comparison is the authentication value and the module information and version of the media player program. If the information is legitimately matched, the authentication request is made to the external CAS server 300 based on the obtained authentication information (authentication key and authentication value) (S230).

Here, the authentication value of the authentication information obtained from the IPTV service storage device 200 is generated based on the module information and version information of the media player program provided from the IPTV service storage device 200, and thus the media player installed in step S216. If the program is provided and installed from the corresponding IPTV service storage device 200 obtained the authentication information in step S220, the authentication value of the authentication information obtained this time will correspond to the module information and version information of the installed media player program. .

Thus, in the content reproduction method of the playback apparatus 100 according to the present invention, the authentication result is returned from the CAS server 300 in response to the authentication request in step S230 (S240).

In the content reproduction method of the playback apparatus 100 according to the present invention, by the operation by the security processing program, it is determined whether the authentication result returned from the CAS server 300 is a legitimate authentication result (S250). If the content playback method of the playback apparatus 100 according to the present invention is determined to be a legitimate authentication result indicating reception permission, the reception permission intermediate key is obtained based on this authentication result (S260). For example, if a qualification management message (EMM) is received from the CAS server 300 as a legitimate authentication result indicating that the reception is allowed, the content reproduction method of the playback apparatus 100 according to the present invention may include an authentication key of the acquired authentication information. It is possible to obtain a reception allowance intermediate key from the returned authentication result, that is, the qualification management message (EMM).

Of course, if it is determined in step S250 that the authentication result indicating that the reception is not allowed, the content playback method of the playback device 100 according to the present invention, by using the programs of the service execution data installed through step S210 The content according to the IPTV broadcasting service may not be played (S255).

In the meantime, in the method of reproducing the content of the playback apparatus 100 according to the present invention which has obtained the reception permitting intermediate key, content (eg, real-time broadcast content or VOD content) according to the IPTV broadcasting service is selected from the user of the playback apparatus 100. When the selected content is received from an external content service server (eg, an IPTV broadcasting server or a VOD providing server), the received content (eg, real-time broadcasting content or VOD content) is played back in conjunction with a video / audio processing function. Process to enable (S270).

That is, the content reproduction method of the playback apparatus 100 according to the present invention demodulates the received content (for example, real-time broadcast content or VOD content) according to a corresponding demodulation method.

In this case, when the received content is content to which a conditional access system (CAS) technology is applied, an entitlement control message (ECM) corresponding to the corresponding content may be received together with the corresponding content.

Accordingly, in the method of reproducing the content of the playback apparatus 100 according to the present invention, if there is an Entitlement Control Message (ECM) received corresponding to the corresponding content (for example, real-time broadcast content or VOD content), the process may be performed through step S260. The control word (CW) is obtained from the ECM using the obtained reception allowance intermediate key, and the corresponding content (eg, real-time broadcast content or VOD content) is descrambled based on the obtained control word (CW).

Accordingly, the content reproduction method of the playback apparatus 100 according to the present invention will reproduce the demodulated and / or descrambled content so that the user can view it (S280).

As described above, the IPTV service method using the mobile IPTV service storage device according to the present invention includes a variety of programs required to process the content according to the IPTV broadcast service in the playback device 100 capable of playing video. By accessing the portable IPTV service storage device 200 storing the service execution data to the IPTV content through the operation of the programs installed in the playback device 100 receives the service execution data from the IPTV service storage device 200 is installed Can be processed / played back normally.

In addition, the IPTV service method using a mobile IPTV service storage device according to the present invention, the authentication information is stored in a secure hardware chip such as a smart card in the mobile IPTV service storage device 200, connected to the playback device 100 By performing authentication on the basis of the authentication information of the IPTV service storage device 200 in the processing / playback of the IPTV content, it is possible to prevent the plurality / use of the service execution data of the IPTV service storage device 200 illegally.

Accordingly, the IPTV service method using the mobile IPTV service storage device according to the present invention uses various types of mobile IPTV service storage devices 200 that store various programs necessary for processing the content according to the IPTV broadcast service. In the type of playback apparatus 100, an IPTV broadcasting service can be easily used without a set top box.

Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above-described embodiments, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the following claims. Anyone skilled in the art will have the technical idea of the present invention to the extent that various modifications or changes are possible.

Mobile IPTV service storage device that makes it possible to easily use IPTV broadcasting service without set-top box in various types of playback devices by using a portable IPTV service storage device that stores various programs necessary to process contents according to IPTV broadcasting service. In case of applying IPTV service system and method, it is possible to reduce the burden of set-top box price, IPTV service environment and user satisfaction, and to apply the IPTV service storage device, playback device, and service solution. Not only is there a good chance of doing business, but it can be done clearly and realistically.

1 is a block diagram of an IPTV service system using a mobile IPTV service storage device according to a preferred embodiment of the present invention.

2 is a detailed configuration diagram of an IPTV service storage device according to an exemplary embodiment of the present invention.

3 is a detailed block diagram of a playback apparatus according to another preferred embodiment of the present invention.

4 is a control flowchart illustrating an IPTV service method using a mobile IPTV service storage device according to an exemplary embodiment of the present invention.

5 is a control flowchart illustrating a method of operating an IPTV service storage device according to an exemplary embodiment of the present invention.

6 is a control flowchart illustrating a content reproduction method of a playback apparatus according to an exemplary embodiment of the present invention.

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

100: playback device

200: IPTV service storage device

300: CAS server

Claims (20)

Store service execution data for processing the content according to the IPTV broadcast service and the authentication information for performing user authentication, provide the service execution data to the connected device and the authentication in response to a request from the connected device IPTV service storage device for providing information; And Storing the service execution data provided from the IPTV service storage device to be connected and performing authentication based on the authentication information obtained from the IPTV service storage device by an operation by the service execution data; If the IPTV service system using a mobile IPTV service storage device, characterized in that it comprises a playback device for processing / playback to receive and play predetermined content according to the IPTV broadcast service selected by the user. The method of claim 1, Stores and manages authentication information including at least one of a pre-allocated authentication key and an authentication value corresponding to each IPTV service storage device, and when the authentication request is received from the playback device, responds to the corresponding authentication information according to the authentication request. Compared with the authentication information of the corresponding IPTV service storage device, the IPTV service system using a mobile IPTV service storage device, characterized in that it further comprises a CAS server for providing the authentication results according to the playback device. A connecting portion for connecting with an external playback device; A service execution data management unit which stores service execution data for processing content according to an IPTV broadcasting service and provides the service execution data to the playback apparatus when the playback apparatus is connected through the connection unit; And And an authentication unit which stores authentication information for performing user authentication and provides the authentication information in response to a request from the connected playback apparatus. The method of claim 3, wherein The service execution data management unit, Among the driver program that supports interworking with the IPTV service storage device itself, the security processing program for performing user authentication, the video / audio processing program for processing the content according to the IPTV broadcasting service, and the media player program. IPTV service storage device, characterized in that for storing the service execution data including at least one. The method of claim 4, wherein The service execution data management unit, When the playback device is connected through the connection unit, the driver program is provided to the playback device so that at least one of the security processing program, the video / audio processing program, and the media player program is completed after the installation of the driver program is completed. IPTV service storage device, characterized in that provided to the playback device. The method of claim 3, wherein The authentication unit, IPTV service, characterized in that it comprises a smart card for storing the authentication information, which is generated based on a pre-assigned authentication key, the module information and version information of the media player program, including at least one of the pre-assigned authentication value. Storage. A connection unit for connecting to an external IPTV service storage device; A memory unit for storing service execution data provided from the connected IPTV service storage device; And an execution data operation unit for processing to reproduce the predetermined contents according to the IPTV broadcasting service by the operation by the service execution data. The method of claim 7, wherein The execution data operation unit, A driver driver for recognizing the connected IPTV service storage device and interworking with the IPTV service storage device by an operation of the driver program as the driver program included in the service execution data is installed, and the service execution data A security processing unit for performing user authentication by an operation by a security processing program included in the video processing unit, and a video processing such that content corresponding to an IPTV broadcasting service can be reproduced by an operation by a video / audio processing program included in the service execution data. At least any one of an audio processing unit and a media player unit interoperating with the security processing unit and the video / audio processing unit to play contents according to an IPTV broadcasting service selected by a user as the media player program included in the service execution data is installed. One Reproducing apparatus comprising a. The method of claim 8, The media player unit, Requesting the security processing unit to perform authentication by acquiring authentication information from the connected IPTV service storage device, and requesting the video / audio processing unit to process predetermined content according to an IPTV broadcasting service received according to selection by a user. And reproducing the content processed by the video / audio processor. The method of claim 8, The security processing unit, Requesting authentication information to the IPTV service storage device and requesting authentication to an external CAS server based on the obtained authentication information, and if a valid authentication result is returned from the CAS server according to the authentication request, the authentication result is based on the authentication result. And a playback receiving intermediate key. 11. The method of claim 10, The video / audio processing unit, Demodulating the content according to the IPTV broadcasting service, and if there is an Entitlement Control Message (ECM) received corresponding to the content, the content is based on a control word (CW) obtained from the ECM using the reception permission intermediate key. And a descrambling process of the content. Connecting the IPTV service storage device and the playback device; Providing the service execution data to the playback apparatus to which the IPTV service storage device which stores service execution data for processing content according to the IPTV broadcasting service and the authentication information for performing user authentication is connected; Storing / installing, by the playback device, the service execution data provided from the IPTV service storage device; Requesting / acquiring authentication information from the IPTV service storage device by the playback device by the stored service execution data and performing authentication based on the authentication information; And And if it is a legitimate authentication result, by the operation of the stored service execution data, the playback device receives and processes / plays the predetermined content according to the IPTV broadcasting service selected by the user so as to be able to play it. IPTV service method using a portable IPTV service storage device. 13. The method of claim 12, A CAS server that stores / manages authentication information including at least one of a pre-allocated authentication key and an authentication value corresponding to each of the IPTV service storage devices, when an authentication request is received from the playback device, corresponding authentication according to the authentication request. Comparing the information with the authentication information of the corresponding IPTV storage device; And And providing, by the CAS server, an authentication result according to the comparison to the playback device. A connection step of connecting with an external playback device; A service execution data providing step of providing pre-stored service execution data for processing playback of contents according to an IPTV broadcasting service to the playback apparatus when the playback apparatus is connected; And And an authentication information providing step of providing pre-stored authentication information for performing user authentication to the playback device in response to a request from the connected playback device. The method of claim 14, The service execution data providing step, Providing a driver program that supports interworking with the IPTV service storage device itself when the playback device is connected; And providing at least one of a security processing program for performing user authentication, a video / audio processing program for processing the content according to the IPTV broadcasting service, and a media player program. How service storage works. The method of claim 14, The authentication information, And a predetermined authentication value generated based on a pre-assigned authentication key, module information and version information of the media player program. An access step connected to an external IPTV service storage device; A service execution data management step of storing / installing service execution data provided from the connected IPTV service storage device; And a content processing step of processing / reproducing the predetermined content according to the IPTV broadcasting service by the operation by the service execution data. The method of claim 17, The service execution data management step, Storing / installing a driver program provided from the IPTV service storage device, recognizing the connected IPTV service storage device by an operation by the driver program, and interworking with the IPTV service storage device; A security processing program for performing user authentication provided from the IPTV service storage device, a video / audio processing program for processing content to be played back according to an IPTV broadcasting service, and the security to be able to play content according to an IPTV broadcasting service selected by a user. And storing / installing at least one of a processing program and a media player program interoperating with the video / audio processing program. The method of claim 18, Requesting authentication to an external CAS server based on the obtained authentication information by requesting authentication information to the IPTV service storage device by an operation by the security processing program; And if a valid authentication result is returned from the CAS server in response to the authentication request, acquiring a reception permitting intermediate key based on the authentication result. 20. The method according to claim 18 or 19, The content processing step, Demodulating the content according to an IPTV broadcasting service received according to a user's selection; If there is an Entitlement Control Message (ECM) received corresponding to the content, a control word (CW) is obtained from the ECM using an allowable intermediate key, and the content is descrambled based on the control word (CW). To do that, And reproducing the processed content.

Images