CN102946553B

CN102946553B - Digital copyright protection system and method applicable to OTT (over the top) Internet TV (television)

Info

Publication number: CN102946553B
Application number: CN201210505686.0A
Authority: CN
Inventors: 邓伟; 王付生
Original assignee: Beijing Dayang Technology Development Inc
Current assignee: Beijing Dayang Technology Development Inc
Priority date: 2012-12-02
Filing date: 2012-12-02
Publication date: 2015-07-01
Anticipated expiration: 2032-12-02
Also published as: CN102946553A

Abstract

The invention relates to a digital copyright protection system and a digital copyright protection method applicable to an OTT (over the top) Internet TV (television). The digital copyright protection system comprises an Internet TV integrated broadcast control platform, a CDN (content delivery network) content distribution and transmission system and an Internet TV terminal, wherein the Internet TV integrated broadcast control platform is provided with a terminal management subsystem, a content encryption subsystem and a certificate generation and issuance subsystem, and a unique code memory and a safe broadcast control device are arranged in the Internet TV terminal; and the Internet TV integrated broadcast control platform can directly authenticate the equipment identity of the Internet TV terminal, manage the transaction requests of the Internet TV terminal, and directly perform the copyright management of video and audio programs. According to the invention, through setting the terminal management subsystem and a transaction management subsystem in the Internet TV integrated broadcast control platform, a certification center and a transaction center of a social third neutral organization are replaced, so that the authentication and transaction processes are simpler, and the digital copyright protection in an Internet TV system can be implemented more conveniently.

Description

A kind of digital copyright protection system and method being applicable to OTT internet television

Technical field

The present invention relates to a kind of digital copyright protection system and the method that are applicable to OTT internet television, is to the system and method that the copyright of digital content is protected in OTT internet television system.

Background technology

Along with the development of computer technology, network transmission technology and Digital object identifier, network is utilized to provide MMS (Multimedia Message Service) to become more and more popular for user.But the digitlization of information also has its Problems existing to need to solve.This major embodiment is both ways: one is the protection problem of copyright, and along with the usufructuary transfer of digital information, the regenerative ratio of information also there occurs transfer; Signal transmits after digital coding, has the feature of high-fidelity, is easy to be copied illegally and spread, thus the interests of the copyright owner of information are encroached on.Another is the problem of management of copyright, and because customer volume is large, the complicated network structure, in network transmission process, more difficultly clearly identifies user, plan and retrain the behavior that user uses for information clearly.The protect and manage of copyright is radio and television, amusement, one in the Various types of data information services such as long-distance education, data file distribution important problem.

Audio-visual content viewing is carried out at present more and more general by the Internet, along with the raising of user's access bandwidth, to be received by the Internet and to watch high-quality audio-visual content very convenient, wherein, the mode of television screen carrying out video and audio broadcasting is sent to by the Internet, be commonly called OTT internet television, here OTT derives from the overhead Over The Top in basketball movement, refer to the TV broadcast mode not relying on middle transmission network, OTT internet television also directly can be called internet television, these two concepts are duplicate herein, possesses same implication.In China, OTT TV refer to transmitted towards television set by public internet provide the controlled of video content can pipe service by state-owned radio and television mechanism, receiving terminal is generally the internet television all-in-one or internet television Set Top Box that can access public internet.Programme content due to internet television is generally undertaken transmitting by public the Internet; in this open environment; more need to provide guard method effectively to the copyright of video-audio program content; to ensure that digitized video-audio program content is used legally by user in the system that is subject to strict protection, usual this method is called as digital copyright protecting Digital Right Management (DRM).

DRM system be protect the copyright of all kinds of Digital Media, intellectual property provides effective means, make operator to identify user, media file by with good conditionsi, paid use or can be watched.

Because the usual data volume of multimedia file is very large, need to take astronomical bandwidth for certain user carries out different encrypted transmission separately, be infeasible in actual operation.Each multimedia file uses an encryption key, as long as user takes key can solve content of multimedia.

How decrypt program file and watch authority content, as watch time restriction or number of times restriction, expense etc. is comprised in authorization message.DRM system can user profile in supervising the network, carry out authenticating user identification, process user mandate, safe transfer decryption information, complete the management functions such as charging; thus the use of multimedia file is carried out under an in check environment, effectively protect the copyright of multimedia file.Also to provide the consumer record of user for operator and program business simultaneously.

Current DRM technology provider and relevant standardization bodies, when designing DRM system, consider five human subjects: content provider, content publisher, authentication center, trade center and user usually in system reference model.Its main logical relation and copyright protection process are:

1) letter of identity is signed and issued to content provider, content publisher, trade center and user by authentication center;

2) content provides and according to certain transaction, the digital video-audio content with copyright information is sent to content publisher, and this digital video-audio content may through overprotection, also may without protection;

3) after content publisher obtains the digital video-audio content of band copyright information from content provider, according to user's application, user is sent to by through processing the shielded digital video-audio content obtained;

4) user pays and licensing to trade center;

Trade center content of announcement supplier or content publisher sign and issue licence to user.Based on different business model, content provider and content publisher likely sign and issue licence directly to user;

5) content provider signs and issues licence directly to user, or signs and issues licence by content publisher to user according to trade contract;

6) trade center provides the use information of profit dispute and content to content provider and content publisher.

Can see from description above, authentication center and trade center are two very important main bodys, the construction of authentication center and trade center and operation are the basic prerequisites of existing framework whole DRM system technical operation, standards more both domestic and external advise authentication center and trade center by independently third party usually (relative to content provider, content publisher and content consumer) build and service is provided, so that multiple different content supplier, contents distribution business, numerous content consumer (user) can obtain believable service in a relative normalized environment.But at present delayed due to this Liang Lei center Construction and operation of China, make the domestic DRM system directly relying on this reference model can not real-world operation.Especially, domestic current internet television business is being promoted rapidly and is being come, because DRM system can not complete running bring many difficulties also can to the popularization of internet television business.

According to the regulation of country about administrative department, the management body of internet television is internet television integrated Broadcast Control platform licence plate business and content service platform licence plate business, there are many internet television integrated Broadcast Control platform licence plate business and many content service platform licence plate business at present, wherein content service platform must by the integrated Broadcast Control platform of internet television to end users with services, an integrated Broadcast Control platform of internet television must provide the access of many content Broadcast Control platforms, and a content service platform also can be linked into many integrated Broadcast Control platforms of internet television.The equipment that user accepts internet television service is called internet television terminal, internet television terminal by a certain the integrated Broadcast Control platform management of internet television and mandate, and must can only accept the internet television service of the integrated Broadcast Control platform of this family's internet television.Internet television terminal has two kinds of common forms usually: internet television Set Top Box and internet television all-in-one.Wherein, internet television Set Top Box provides the access of the Internet, accept the management of the integrated Broadcast Control platform of internet television, after Set Top Box receives the video-audio program that the integrated Broadcast Control platform of internet television sends, giving television set by program decoding provides user to watch and listens to.The television set of internet television all-in-one has been actually built-in internet television set top box module, internet television all-in-one also can provide the access of public internet, accept the management of the integrated Broadcast Control platform of internet television, after receiving the video-audio program that the integrated Broadcast Control platform of internet television sends, broadcasting of being decoded by program provides user to watch and listens to.

Internet television on ordinary meaning integrated Broadcast Control platform has two classes: IPTV internet television integrated Broadcast Control platform and the integrated Broadcast Control platform of OTT internet television, the integrated Broadcast Control platform of the internet television that the present invention mentions if no special instructions, all refers to the integrated Broadcast Control platform of OTT internet television.Apparent, the integrated Broadcast Control platform of OTT internet television and OTT internet television terminal all need to be linked into public internet, the transmission of its various interactive information and program be all completed by public internet or realize on the basis of public internet.IPTV internet television integrated Broadcast Control platform has province's fraction platform of a total platform in the whole nation (being merged by former Chinese Central Television (CCTV) IPTV internet television integrated Broadcast Control platform and the integrated Broadcast Control platform of know-all IPTV internet television) and each province at present, is provide IPTV to broadcast service specially.7 licence plate business have been provided in the current whole nation of OTT internet television integrated Broadcast Control platform altogether, routine 7 licence plate chambers of commerce build 7 independently integrated Broadcast Control platforms of OTT internet television, each can provide OTT internet television to broadcast (or program request) service to the user being distributed in national any area in theory, and current policy only allows to commence business in integration of three networks pilot region.The integrated Broadcast Control platform of internet television aims at OTT internet television business and completely newly builds, and its a business part is similar with the broadcast system business function of traditional electrical television stations, and program can be provided to broadcast.After the program broadcast of traditional electrical television stations, user watches that approach has three kinds usually: receive urban television station by the TV signal of launching tower broadcast transmission, the cable TV signal that receives spaceborne TV signal, receive cable television operators, and TV station is not directly and user comes in contact and administration behaviour; Cable television operators or satellite transmission business are directly towards domestic consumer.But the feature due to OTT internet television itself determines the passage that it does not rely on transmission business, and relevant administrative department imparts the integrated Broadcast Control platform of OTT internet television to the administrative power of OTT internet television terminal, the integrated Broadcast Control platform of internet television also can activate or stop the operation of service to internet television terminal technically, so under this business model, internet television content service platform licence plate business is exactly the content supplier CP in DRM routine reference model, internet television integrated Broadcast Control platform licence plate business is exactly the contents distribution business CD in DRM routine reference model, the user of internet television terminal is exactly the user in DRM routine reference model.Next, how convenient what we needed to consider is exactly the function and the business that provide trade center and authentication center.

It should be noted that, OTT internet television terminal is usually also referred to as OTT terminal, and internet television terminal is describe easy also referred to as terminal in this article sometimes.In this article, if no special instructions, " terminal ", " OTT terminal ", " internet television terminal " all refers to " OTT internet television terminal ".

According to country about administrative department is to the regulation of the relevant management method that domestic internet television business is carried out, wherein main management body is internet television integrated Broadcast Control platform licence plate business and content service platform licence plate business, and all internet television terminal equipment needs uniquely to be linked into the integrated Broadcast Control platform of certain internet television, and be subject to the control and management of the integrated Broadcast Control platform of this internet television; Content service platform provides service by the integrated Broadcast Control platform of internet television to internet television terminal user.The pattern of this business is that the copyright protection implementation method simplifying digital video-audio content in OTT internet television system provides possibility.

Summary of the invention

For solving the problem of prior art, the present invention proposes a kind of digital copyright protection system and the method that are applicable to OTT internet television.Described system and method does not comprise the digital literary property protection method of independently trade center and authentication center.The relevant function of trade center, authentication center and service combining realize to the integrated Broadcast Control platform interior of internet television by described method; thus both simplified certification and process of exchange; turn avoid the dependence to trade center and authentication center, the digital copyright protecting in internet television system can be carried out quickly and effectively.

The object of the present invention is achieved like this: a kind of digital copyright protection system being applicable to OTT internet television, comprise: the integrated Broadcast Control platform of internet television, CDN content distribution transmission system, internet television terminal, third party content service platform, the integrated Broadcast Control platform of described internet television is distributed transmission system with CDN content and is connected, and described CDN content distribution transmission system is connected with multiple internet television terminal; Described internet television integrated Broadcast Control platform is connected with multiple third party content service platform; The integrated Broadcast Control platform of described internet television is all connected with public internet with internet television terminal.Wherein:

The integrated Broadcast Control platform of described internet television comprises Content Management System, content integrated management system, service operation management system, and described Content Management System is used for the video-audio program content of the integrated Broadcast Control platform interior of managing internet TV; Described content integrated management system, for integrated and management third party content service platform; Described service operation management system is used for the service logic of managing internet television system inside, performs the interactive service with internet television terminal;

described CDN content distribution transmission systemvideo-audio program content is transmitted by public internet to internet television terminal for the instruction according to the integrated Broadcast Control platform of internet television;

described internet television terminal, for and user interactions, completing user log in; Receive the video-audio program information that the integrated Broadcast Control platform of internet television transmits, and provide representing of program for user and navigate; Receive the interaction request of user and send video-audio program viewing request to the integrated Broadcast Control platform of internet television; Receive the video-audio program content that internet television integrated Broadcast Control platform is sent by CDN content distribution transmission system, receive the certificate that the integrated Broadcast Control platform of internet television is signed and issued, and play video-audio program content according to the secret key decryption in certificate.

Described service operation management system alsocomprise:

Certificates constructing with sign and issue subsystem, for Generating Certificate and grant a certificate;

Content-encrypt subsystem, to be encrypted the calculating of algorithm according to key for completing audio-visual content;

Key management subsystem, for generation of, issue and storage management system in all kinds of keys;

User management subsystem, for leading subscriber account;

Terminal management subsystem, for generation of, issue and the equipment unique number of managing internet television terminal, activate or inactive internet television terminal;

User's charge subsystem, for carrying out accounting management to the viewing behavior of user;

Authentication subsystem, for carrying out certification to the identity of internet television terminal equipment and user, and in the authentication procedures of internet terminal equipment, uses equipment unique number to distinguish different equipment;

Described internet television terminal alsocomprise:

Content reproduction device, for the decoding playback of video-audio program content;

Unique number storage device is the equipment unique number that this terminal is provided for storing the integrated Broadcast Control platform of internet television;

User interactions control device, for receiving and responding user and internet television terminal interaction request;

Safe Broadcast Control device, for realizing audio-visual content safety management, is also provided with user security information storage device in safe Broadcast Control device;

CDN service client terminal device, for adaptive CDN content distribution transmission system, receives the programme content that CDN content distribution transmission system sends;

The integrated Broadcast Control platform of internet television is the description that licence that internet television terminal equipment is signed and issued comprises authorization message, comprises the equipment unique number of internet terminal, user account, license issuance time, license term, the numbering of licensed program, the licensed viewing to this program and occupation mode and performs described key needed for right.

Use the digital literary property protection method being applicable to OTT internet television of the digital copyright protection system of the above-mentioned OTT of being applicable to internet television, its process steps is as follows:

Provide the step of terminal unique number: terminal management subsystem is the internet television terminal delivery apparatus unique number networked, and this numbering is stored in unique number storage device, and does corresponding registration at terminal management subsystem;

The step that terminal activates: when first time starts shooting after being linked into the Internet for internet television terminal equipment, connection request is sent from the integrated Broadcast Control platform of trend internet television, report the equipment unique number of this terminal to the integrated Broadcast Control platform of internet television and apply for enabling registration, generating and storing the security information of user; According to the equipment unique number registered terminal default subscribers of this terminal, in user management subsystem, create user account, recording user name, user cipher, subscription information, cost information, programme content use information; Whether, after terminal activates, user can modify to the user account of default subscribers, and select user account and internet television terminal to be bound;

User start shooting log in step: when user opens internet television terminal, prompting user logs in, user inputs username and password on login interface, internet television terminal also can be set to exempt from login mode, and each start logs in the integrated Broadcast Control platform of internet television with login user account identity last time automatically.Username and password is sent to the integrated Broadcast Control platform of internet television by internet television terminal, whether legitimacy and the password of internet television integrated Broadcast Control platform inspection user identity be correct, after user identity and password authentification are passed through, the integrated Broadcast Control platform of internet television logins successfully notice to the loopback of internet television terminal;

The step that user's subscription programs information issues: after user's Successful login system, the relevant information public internet of user's subscription programs is handed down to internet television terminal according to user account information by the integrated Broadcast Control platform of internet television, internet television terminal receives relevant information, and information is presented to user;

Terminal sends the step of program viewing request: user sends program viewing request to safe Broadcast Control device by user interactions control device, and program viewing request is transferred to the integrated Broadcast Control platform of internet television through public internet by safe Broadcast Control device; Program viewing solicited message comprises the information of video-audio program content of equipment unique number, user account and request;

Program viewing request response and the step confirmed: after the integrated Broadcast Control platform of internet television receives the program viewing solicited message that terminal uploads, first certification is carried out by the identity of user authentication authentication subsystem to terminal and user account, certification subscribes to situation by the rear program bag according to user account and program request paid cases determines whether authorize, if authorized, enters the step of certificate issuance; If do not authorized, enter the step returning request failure information;

The step of certificate issuance: certificates constructing with sign and issue subsystem according to the licence of asking authorization message to generate this request, licence is sent to the safe Broadcast Control device of this internet television terminal;

The step of audio-visual content transmission: encrypted audio-visual content is sent to internet television terminal by CDN content distribution transmission system by internet television integrated Broadcast Control platform;

The step that program is play: the deciphering of the audio-visual content that safe Broadcast Control device is encrypted according to the authorization message of license records, and send the video and audio after deciphering to content reproduction device, content reproduction device is transferred to display device to after video and audio decoding, completes the playback of video and audio;

Return the step of request failure information: request failure information is returned to internet television terminal by the integrated Broadcast Control platform of internet television, internet television terminal will ask failed information display to user, and reminding user viewing or other programs of program request.

The beneficial effect that the present invention produces:

1. the present invention compares common DRM method and simplifies system configuration, does not rely on independently trade center and authentication center, makes the realization of DRM system feasible more economically, saved system Construction cost; Decrease a large amount of interworkings with trade center and authentication center in system operation simultaneously, simplify logic and the business procedure of digital copyright protecting in OTT internet television system.

2. also can only arrive a certain the integrated Broadcast Control platform of internet television because internet television terminal equipment must access simultaneously, and be subject to management and the control of the integrated Broadcast Control platform of internet television, and provide Unique Device coding by the integrated Broadcast Control platform of this internet television, so when additionally not increasing system and realizing cost, this device coding just can be used as the identification voucher of internet television terminal, with the certification of alternative authentication center to terminal equipment.

3. because the integrated Broadcast Control platform of internet television is responsible for the access of foreign content service platform and content auditing and management, so internet television integrated Broadcast Control platform can identify in all systems, available programs by which content supplier is provided, so the integrated Broadcast Control platform of internet television can realize cost when not increasing system, alternative authentication center completes the authentication management to content supplier; On this basis, the service operation management system of internet television integrated Broadcast Control platform can process of exchange directly between managing internet television terminal and the integrated Broadcast Control platform of internet television, and record Transaction Information and be supplied to content service platform and content supplier,, instead of the management process of trade center to transaction.

4. in the integrated Broadcast Control platform of internet television; after request program success; program through encryption is sent to internet television terminal by CDN content distribution transmission system by the integrated Broadcast Control platform of internet television; internet television terminal can realize deciphering Broadcast Control to programme content and other copyright management work according to the certificate that the integrated Broadcast Control platform of internet television is signed and issued, and also can complete the perfect copyright protection to digital video-audio program content and management when making not rely on trade center and authentication center in internet television system.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described.

Fig. 1 is a kind of structural representation being applicable to the digital copyright protection system of OTT internet television described in the embodiment of the present invention one;

Fig. 2 is a kind of flow chart being applicable to the digital literary property protection method of OTT internet television described in the embodiment of the present invention two.

Embodiment

embodiment one:

The present embodiment is a kind of digital copyright protection system being applicable to OTT internet television, and system configuration as shown in Figure 1.System described in this enforcement comprises: the integrated Broadcast Control platform of internet television, CDN content distribution transmission system, internet television terminal, third party content service platform, the integrated Broadcast Control platform of described internet television is distributed transmission system with CDN content and is connected, and described CDN content distribution transmission system is connected with multiple internet television terminal; Described internet television integrated Broadcast Control platform is connected with multiple third party content service platform.Owing to doing the restriction of figure, in Fig. 1, internet television terminal has only schematically drawn two, in reality, internet television terminal can be placed on any place that can be linked into public internet, because CDN content distribution transmission system builds over the public internet, as long as so internet television terminal equipment has been connected into public internet, just can set up the connection of distributing transmission system with CDN content, family, office, public place can be placed on, be similar to common television set, so thousands of can be had.Described third party content service platform also only schematically draws two in FIG, also can have multiple in reality, domestic at present have internet television content service licence plate business 9, and the content service platform of any can dock with the integrated Broadcast Control platform of any one internet television and provide content service in principle.

The present embodiment is in the integrated Broadcast Control platform of internet television, arrange internet television terminal ADMINISTRATION SUBSYSTEM, this internet television terminal management system provides the granting of equipment unique encodings, the activation of management and equipment and cancellation to the internet television terminal equipment being linked into the integrated Broadcast Control platform of this internet television; Internet television service operation management system is set at internet television integrated Broadcast Control platform simultaneously, this business management system receives and processes the order request of internet television terminal, the audio-visual content viewing transaction that record internet television terminal is initiated and completed, and the licence of institute's request content is signed and issued to terminal, the integrated Broadcast Control platform of notice internet television transmits the audio-visual content of asking to this terminal.

OTT internet television is that just grown up recently a kind of novel provides the business form of video and audio TV service for the public, saying of narrow sense, OTT internet television be TV programme is sent to user by public internet television set on for user's viewing, the OTT internet television of broad sense in fact also comprises, by the Internet, TV programme is sent to any can viewing on the terminal equipment of audio-visual content.Here OTT derives from the overhead Over The Top in basketball movement, refer to the TV broadcast mode not relying on middle transmission network, its TV programme (being usually also referred to as audio-visual content or digital video-audio content) can directly be sent on the internet television terminal equipment of the user being linked into the Internet by the Internet completely, also can be online by the broadcasting and TV cable TV being sent to traditional broadcasting and TV cable network operator for the Internet, sent to the internet television terminal of user again by the cable television network of bidirectional transformation by cable network operator.

Above, we introduced many internet television integrated Broadcast Control platform licence plate business and many content service platform licence plate business at present, wherein content service platform must by the integrated Broadcast Control platform of internet television to end users with services, an integrated Broadcast Control platform of internet television must provide the access of many content Broadcast Control platforms, and a content service platform also can be linked into many integrated Broadcast Control platforms of internet television.Internet television terminal must be linked into a certain the integrated Broadcast Control platform of internet television, at one's disposal and mandate, and can only accept the internet television service of the integrated Broadcast Control platform of this family's internet television.The system of the present embodiment discussion be exactly one based on the system of the integrated Broadcast Control platform of internet television, contain the content service platform being linked into the integrated Broadcast Control platform of this internet television, also contains by the integrated Broadcast Control platform management of this internet television simultaneously and accept the internet terminal of the integrated Broadcast Control platform service of this internet television.

User due to internet television may be distributed in national any area; and the program source of internet television is usually in internet television integrated Broadcast Control plateform system location (such as Shanghai or Hangzhou), how to allow concentrating on a regional content side and realize quick, smooth video viewing experience to the user of nationwide? this generates CDN content distribution transmission system.The full name of CDN is Content Delivery Network, i.e. content distributing network.Its basic ideas avoid the Internet likely affects bottleneck and the link of data transmission bauds and stability as far as possible, make content delivery sooner, more stable.By placing one deck intelligent virtual network on existing Internet basic that node server is formed everywhere at network, CDN system can in real time according to the connection of network traffics and each node, load state and the request of user again to be led from the nearest service node of user to the integrated information such as Distance geometry response time of user.Its objective is and make user can obtain required content nearby, solve the situation that Internet network is crowded, improve the response speed of user's access websites.For example when not having CDN content to distribute transmission system, in OTT internet television system, all internet television terminals all need directly to access video and audio media server in the integrated Broadcast Control platform of internet television to obtain programme content by public internet, the server access pressure of such internet television integrated Broadcast Control Platform center is just very large, the network route situation at the same center of access in all parts of the country is different simultaneously, the node span of some areas possibility go-between transfer is fewer, network congestion is little, so the viewing experience of user is just more smooth, and the node span of game area possibility network transfer is many, network congestion is relatively more serious, and such user watches video just may be discontinuous desultory, and the viewing experience of user will be very poor.When employing CDN content distribution transmission system, CDN content distribution transmission system will arrange the access services device of respective numbers throughout the country according to the difference of user's visit capacity, originally the access pressure dissipation concentrated on central server is gone to the server of all parts of the country, simultaneously also each accessing relatively frequently video-audio program content by the backbone transport Channel Synchronous of CDN system self to more on the edge access server of user, user just can obtain content from edge access server nearby thus obtain obtaining better viewing experience when accessing required content.Central server, the edge access server of CDN are all connected into the Internet, and provide content distribution service by the Internet to user's (being internet television terminal) here, its backbone transport passage is also the backbone transport passage using the Internet, so CDN is the virtual network be based upon on public internet basis, uses it to connect central server on the internet, the management server on edge access server and backstage comes jointly for user provides better access service.

We just see following service logic like this: content supplier is by respective content service platform, video-audio program content is supplied to the integrated Broadcast Control platform of internet television, internet television terminal is in charge of by the integrated Broadcast Control platform of internet television, the viewing request of response internet television terminal, is sent to internet terminal equipment for user's viewing the video-audio program content that internet television terminal needs by CDN content distribution transmission system.The present problem solved that needs is exactly how certification internet terminal equipment and user, how contains in the Iarge-scale system of internet television integrated Broadcast Control platform, content service platform, CDN content distribution transmission system and internet television terminal at this and realizes more convenient DRM digital copyright protecting.

The integrated Broadcast Control platform of internet television described in the present embodiment comprises Content Management System, content integrated management system, service operation management system.Described Content Management System is used for the video-audio program content of the integrated Broadcast Control platform interior of managing internet TV; Described content integrated management system, for integrated and management third party content service platform; Described service operation management system is used for the service logic of managing internet television system inside, performs the interactive service with internet television terminal.

Under the coordinated management of content integrated management system, the programme content of third party content provider, by its respective content service platform, be supplied to the Content Management System in the integrated Broadcast Control platform of internet television, as the programming source of the integrated Broadcast Control platform of internet television, and be distributed to end user's (internet television terminal) viewing use by the integrated Broadcast Control platform of internet television, the number of times that the service operation management system record of the integrated Broadcast Control platform of internet television is watched by user from the content of different content provider, statistics is supplied to third party content provider, and carry out disbursement and sattlement with third party content provider accordingly.Because internet televisions all at present integrated Broadcast Control platform licence plate business is also content service platform licence plate business simultaneously, so they also have the video-audio program content of self.These programme contents can be directly injected in Content Management System, and the part as program source is supplied to terminal use's viewing.This is also that the content service platform accessed by content integrated management system is called the reason of third party content service platform by us.

Described service operation management system also comprises:

Certificates constructing with sign and issue subsystem, for Generating Certificate and grant a certificate, this certificate mainly to internet television terminal provide program occupancy permit.The integrated Broadcast Control platform of internet television is the description that licence that internet television terminal equipment is signed and issued comprises authorization message, comprises the equipment unique number of internet terminal, user account, license issuance time, license term, the numbering of licensed program, the licensed viewing rights of using to video-audio program content and program decoding key; The internet television terminal that content in licence sends to this to file a request after encryption.

Content-encrypt subsystem, to be encrypted the calculating of algorithm according to key for completing audio-visual content.Enter into the program of Content Management System, after approval procedure, be that each program produces one and produces encryption key be stored in key management subsystem by the corresponding relation of key and program by key management subsystem, content-encrypt subsystem is encrypted program one by one according to this key respectively, and the encryption key of program is also for the deciphering of program.

Key management subsystem, for generation of, issue and storage management system in all kinds of keys.These keys mainly contain the PKI of internet television terminal equipment, program encryption key.

User management subsystem, for leading subscriber account.Comprise the establishment of user account, recording user name, user cipher, the amendment of user cipher is provided, the maintenance of user account and deletion etc.

Terminal management subsystem, for generation of, issue and the equipment unique number of managing internet television terminal, activate or inactive internet television terminal.Terminal management subsystem is in internet television terminal device fabrication process, and in advance for each terminal equipment produces a unique number, this Unique Device numbering is fired in the unique number storage device of terminal in terminal equipment production process.Terminal management subsystem responsible safeguards the equipment state that the unique number that produces is corresponding, the state that each internet television terminal is recorded in the equipment management subsystem may be following several: " waiting to enable ", " enabling ", " cancellation ", correspond respectively to: this equipment waiting for enable, this equipment normally use in, this equipment nullified and stopped using.After numbering is produced, the equipment state of its correspondence is " waiting to enable "; When internet television terminal first time starts shooting under the environment sent out with linking Internet, connection request will be sent from the integrated Broadcast Control platform of trend internet television, requesting service activates, and after device activation request goes through, the state of this internet television terminal will be modified to " enabling ".After device damage or other reasons are stopped using, the state of its correspondence is " cancellation ".

User's charge subsystem, for carrying out accounting management to the viewing behavior of user.The charge account of user's charge subsystem primary responsibility leading subscriber, process the paying of customer charge, that there is expense in user reduces, and provides program to charged the statistics of the service condition of viewing to business management subsystem.

Authentication subsystem, for carrying out certification to the identity of internet television terminal equipment and user, and in the authentication procedures of internet terminal equipment, uses equipment unique number to distinguish different equipment.

Described CDN content distribution transmission system is used for transmitting video-audio program content by public internet to internet television terminal according to the instruction of the integrated Broadcast Control platform of internet television.

Described internet television terminal is used for and user interactions, and completing user logs in; Receive the video-audio program information that the integrated Broadcast Control platform of internet television transmits, and provide representing of program for user and navigate; Receive the interaction request of user and send video-audio program viewing request to the integrated Broadcast Control platform of internet television; Receive the video-audio program content that internet television integrated Broadcast Control platform is sent by CDN content distribution transmission system, receive the certificate that the integrated Broadcast Control platform of internet television is signed and issued, and play video-audio program content according to the secret key decryption in certificate.

Described internet television terminal also comprises:

Content reproduction device, for the decoding playback of video-audio program content.

Unique number storage device is the equipment unique number that this terminal is provided for storing the integrated Broadcast Control platform of internet television.The device numbering of described internet television terminal by internet television terminal peculiar.

User interactions control device, for receiving and responding user and internet television terminal interaction request.User interactions control device, uses a teleswitch usually, mobile phone also often can be used now to load onto corresponding software and carry out the use of analog telecommand device.

Safe Broadcast Control device, for realizing audio-visual content safety management, is also provided with user security information storage device in safe Broadcast Control device.Safe Broadcast Control device provides the secure connection path of internet television terminal and the integrated Broadcast Control platform of internet television, when by integrated to internet television for first connection Broadcast Control platform, safe Broadcast Control device will send activation request from the integrated Broadcast Control platform of trend internet television, in the process of internet television integrated Broadcast Control platform validation internet television terminal equipment identities, authentication subsystem in safe Broadcast Control device and the integrated Broadcast Control platform of internet television is by consulting the public, private key pair obtaining internet terminal equipment alternately, wherein, PKI is stored in the key management system of the integrated Broadcast Control platform of internet television, private key is kept in the user security information storage device of safe Broadcast Control device.The program licence that the integrated Broadcast Control platform of reception internet television is signed and issued to internet television terminal is also responsible for by safe Broadcast Control platform, and use the private key deciphering licence of terminal equipment self, obtain program decoding key, and the authorization message read program, and in strict accordance with the instruction of authorization message, for user provides video-audio program to watch the control used.

CDN service client terminal device, for adaptive CDN content distribution transmission system, receives the programme content that CDN content distribution transmission system sends.User due to OTT internet television can be distributed in national any region (current policy restriction can only use in integration of three networks model regions) in theory, very high to the requirement of Content Delivery Network, mainly high bandwidth, low time delay, bandwidth good stability, low packet loss etc.Meanwhile, for alleviating the pressure of a large number of users height Concurrency Access to internet television integrated Broadcast Control Platform center server, all adopting CDN content distribution transmission system to carry out content at present and transmitting to the transmission of user terminal.The integrated Broadcast Control platform of internet television will need programme information (the program ID of transmission, demand bit rate etc.), the Unique Device of terminal numbering, terminal region and IP address of terminal etc. are supplied to CDN content distribution transmission system, CDN content distribution transmission system, according to the cache condition of customer location and network connection status and this program, selects optimum edge access server and network connection route programme content to be sent to the internet television terminal of filing a request by efficient protocols automatically.

In the above-mentioned system be jointly made up of the integrated Broadcast Control platform of internet television, content service platform, internet television terminal, the process of digital copyright protecting is as follows:

First be internet television integrated Broadcast Control platform to the preliminary treatment of content: all contents entering into content service platform, no matter be the content that the video-audio program content of internet television integrated Broadcast Control platform licence plate business self or third party content service platform are provided by content integrated management system, be that each program generates an encryption key and is kept in key management system by key management system all in advance, content-encrypt subsystem uses the key of its correspondence to be encrypted to each video-audio program content one by one, program after having encrypted can provide viewing service to user.

Program provides viewing service mainly through two kinds of forms to user: the first is organized into broadcasts the form of channel, and it two is be organized into the form treating request program.

Be organized into the form broadcasting channel, the channel being similar to traditional electrical television stations broadcasts, different channels is opened up according to the difference of programme content exactly by internet television integrated Broadcast Control platform, broadcast plan program according to layout in advance in each channel broadcasts at a fixed time, as: children channel, English study channel, nature and history channel, documentary film channel, Science Explorations channel, geographical channel etc.

Be organized into the form treating request program; be exactly by the Content Management System of the integrated Broadcast Control platform of internet television; for each available programs entering into Content Management System generates the descriptor that some possess retrieval meaning, these descriptors can be referred to as inventory information or description metadata usually.There is provided the inquiry of the category column tabular form of these metadata or the inquiry of search frame by the integrated Broadcast Control platform of internet television simultaneously.Program viewing request can be sent by internet television terminal to the integrated Broadcast Control platform of internet television after user inquires interested program, after program viewing request is passed through, the integrated Broadcast Control platform of internet television transmits the licence containing program decoding key and the programme content after encrypting to the terminal of filing a request, and plays to user watch by the safe Broadcast Control device of internet television terminal after being deciphered.

Embodiment two:

The present embodiment is a kind of method being applicable to the digital copyright protecting of OTT internet television using the digital copyright protection system being applicable to OTT internet television described in embodiment one, and the flow process of described method as shown in Figure 2.The step of described method is as follows:

Provide the step of terminal unique number: terminal management subsystem is the internet television terminal delivery apparatus unique number networked, and this numbering is stored in unique number storage device, and does corresponding registration at terminal management subsystem.

Internet television terminal is when factory of manufacturer manufactures, be assigned with equipment unique number by the terminal management subsystem of Integrated Management Platform for it in advance, this numbering is fired in the unique number storage device of internet television terminal by manufacturer, this numbering can not be modified all the life, if this terminal is damaged, this numbering abrogates use, and terminal management subsystem is inactive to the state recording of this numbering.This equipment unique number is using the identification voucher as internet television terminal, as the unique identification of internet television integrated Broadcast Control land identification internet terminal equipment and the exclusive evidence of certification internet terminal equipment identity in follow-up service, any one equipment all will be checked this ID card No. when in use and to be allowed for access use.After a legal equipment unique number is assigned to an internet television terminal, this number record in system, and is marked its state for " waiting to enable " by the terminal management subsystem of the integrated Broadcast Control platform of internet television.The state that each internet television terminal is recorded in the equipment management subsystem may be following several: " waiting to enable ", " enabling ", " cancellation ", correspond respectively to: this equipment waiting for enable, this equipment normally use in, this equipment nullified and stopped using.

The step that terminal activates: when this step is started shooting after being linked into the Internet for the first time for internet television terminal equipment, connection request is sent from the integrated Broadcast Control platform of trend internet television, report the equipment unique number of this terminal to the integrated Broadcast Control platform of internet television and apply for enabling registration, generating and storing the security information of user.According to the equipment unique number registered terminal default subscribers of this terminal, in user management subsystem, create user account, recording user name, user cipher, subscription information, cost information, programme content use information; Whether, after terminal activates, user can modify to the user account of default subscribers, and select user account and internet television terminal to be bound.

When an internet television terminal is after manufacturer has manufactured, generally enter family of domestic consumer by various marketing channel or other form, at this moment the relevant information of the integrated Broadcast Control platform of affiliated internet television has been provided with therein, as: the title of the integrated Broadcast Control platform of internet television, the access network address etc. of internet television integrated Broadcast Control platform terminal ADMINISTRATION SUBSYSTEM.When after internet television terminal is linked into the Internet, first time starts shooting, send application for registration from the integrated Broadcast Control platform of the internet television that trend is preset, this application mainly reports the equipment unique number of this terminal to be registered as " enabling " to the integrated Broadcast Control platform of internet television.Internet television integrated Broadcast Control platform terminal ADMINISTRATION SUBSYSTEM checks whether this terminal equipment unique number is the legal numbering belonging to this internet television integrated Broadcast Control platform management, whether this numbering is registered, whether this number is canceled is stopped using, if this number is legal numbering and its state is " waiting to enable " is not also canceled and stops using, so just for this terminal completes registration, and activate this terminal.This terminal of so-called activation, refers to that the integrated Broadcast Control platform of internet television receives and responds this viewing request, and the integrated Broadcast Control platform of internet television also browses selection to the terminal propelling movement related electronic programme information activated for user.If the equipment unique number that Set Top Box reports does not belong to the integrated Broadcast Control platform management of this internet television, or this number is canceled, or this device numbering is registered, then the information returning registration failure, to internet television terminal, is presented to user by internet television terminal.Unregistered successful internet television terminal, the integrated Broadcast Control platform of internet television does not receive the program viewing request not responding it yet and send, and internet television integrated Broadcast Control platform does not also push related electronic programme information to unactivated terminal and browses selection for user.

Further, applying for the registration of to internet television integrated Broadcast Control platform is completed by the safe Broadcast Control device of internet television terminal, after succeeding in registration, consult by some conventional standard agreements the private-public key pair producing this terminal alternately by the authentication of safe Broadcast Control device and the integrated Broadcast Control platform of internet television and authentication subsystem, wherein private key is stored in the user security information storage device of safe Broadcast Control device of terminal, and PKI is stored in the key management subsystem of the integrated Broadcast Control platform of internet television.Private key and equipment unique number are jointly for from now on to the authentication of terminal equipment, and PKI is used for the integrated Broadcast Control platform of internet television and transmits the encryption of some key messages as the licence of program etc. to terminal.

After internet television terminal is enabled, the integrated Broadcast Control platform of internet television is that this terminal of newly enabling produces a default subscribers automatically, and create user name and user login code by terminal notifying user, in user management subsystem, create default subscribers account, recording user name, user cipher; Prompting user selects to determine subscription information, programme content restriction information, and recording user is to the selection situation of subscription information and programme content restriction information; Create user charges accounts, for by online or off-line means carry out user and to prestore expense, the collecting and deducting of program request expense, provide user to pay paying account expense and the inquiry of payout status.User management subsystem is according to the equipment unique number registered terminal default subscribers of this terminal, and after terminal activates, default subscribers is the leading subscriber of this terminal.

Default subscribers is had the right for this terminal creates other user accounts multiple, and user management subsystem creates and record the user name of these other user accounts, login password, user charges account, subscription information, programme content restriction information equally.Default subscribers be bundled in create default subscribers terminal on use, all expenses that this terminal occurs all associate with default subscribers, when not doing special change, the program channel of this terminal subscribes to situation, program viewing uses restriction to be also consistent with the setting of default subscribers, and user opens a terminal at every turn does not need input username and password directly with default subscribers identity logs.

User start shooting log in step: when user opens internet television terminal, prompting user logs in, user inputs user name and login password on login interface, internet television terminal also can be set to quick login mode, under quick login mode, user name and the login password of the user name of the default subscribers of this terminal and login password and last Successful login will be stored in user security information storage device, and each start internet television terminal logs in the integrated Broadcast Control platform of internet television with the account identity of last Successful login automatically.Username and password is sent to the integrated Broadcast Control platform of internet television by internet television terminal, whether legitimacy and the password of internet television integrated Broadcast Control platform inspection user identity be correct, after user identity and password authentification are passed through, the integrated Broadcast Control platform of internet television logins successfully notice to the loopback of internet television terminal.

Further, watch the registration of expense because user's login relates to user and collect problem, so the login process of user requires that fail safe is very high.Usually the login process to the integrated Broadcast Control platform of internet television is responsible for by safe Broadcast Control sole duty, wherein username and password also uses the private key of this terminal in the user security information stored in the terminal initiating to log in be encrypted, and also uploads the equipment unique number initiating registration terminal simultaneously.The integrated Broadcast Control platform of internet television receives the log-on message after encryption, takes out the PKI of this terminal according to equipment unique number to key management subsystem, to log-on message deciphering, obtains user name and login password.Whether the user account information comparison will stored in this user name and login password and Subscriber Management System again, examining is the correct login of validated user.For the default subscribers of each terminal binding, because other terminal can not take the private key of this terminal, so the situation that the default subscribers of other user's spurious copy terminals logs in can be avoided, be not subject to not add the illegal use of mandate with the fail safe and customer charge that ensure user account.

The step that user's subscription programs information issues: after user's Successful login system, the relevant information of user's subscription programs is handed down to internet television terminal by public internet according to user account information by the integrated Broadcast Control platform of internet television, information by receiving relevant information, and is presented to user by internet television terminal.

When there being channel to broadcast form, usually transmit the current program description of just broadcasting of several channels that user subscribes to for user's selection to terminal; When not having channel to broadcast form, usually transmit the program navigating page of taxonomic organization to terminal, or program recommendation information, or the program searching page is for user's program request.

The programme information that user subscribes to, the List name of the interested several channel of the user normally in channel broadcast situation.Because characteristic channel is normally charged, subscribe to channel and usually can organize to pay the form that lower expense watches the product bag of multiple channel of interest in advance, separate payment expense is not more needed to the program in these channels.Separate payment expense is also needed to the program subscribed to outside channel.Subscription programs also can be pre-payment monthly recommend sheet, pre-payment monthly classics to miss old times or old friends the product packet forms such as film, be then automatically presented at when having new program to release on the picture after user's start, facilitate user to choose viewing.

Terminal sends the step of program viewing request: user sends program viewing request to safe Broadcast Control device by user interactions control device, and program viewing request is transferred to the integrated Broadcast Control platform of internet television via CDN content distribution transmission system by CDN service client terminal device by safe Broadcast Control device.Program viewing solicited message comprises the information of video-audio program content of equipment unique number, user account and request;

Program viewing request response and the step confirmed: after the integrated Broadcast Control platform of internet television receives the program viewing solicited message that terminal uploads, first certification is carried out by the identity of user authentication authentication subsystem to terminal and user account, certification subscribes to situation by the rear program bag according to user account and program request paid cases determines whether authorize, if authorized, enters the step of certificate issuance; If do not authorized, enter the step returning request failure information.

If this program of the information spinner of video-audio program content is at the program ID of the integrated Broadcast Control platform of internet television, this program ID can be provided by internet television integrated Broadcast Control platform backstage in the process of user search or request program, or pushes in user subscription information and come.The processing mode of similar user login information, program viewing request uploads the integrated Broadcast Control platform of internet television after also using terminal equipment encrypted private key by safe Broadcast Control device, the integrated Broadcast Control platform of internet television is according to the content obtaining program viewing request after the terminal equipment public key decryptions stored in cipher key subsystem, and the process of this deciphering is exactly an authentication process.

If the program of user's request is the content in the product bag of Pay Per View channel or pre-payment, then directly authorizes, enter certificate issuance step; If program request pay content, then need the confirmation carrying out pay imformation with user, successfully withholdd by user charges account or reached the standard grade down by line after other have authorized payment, carry out mandate and enter certificate issuance step.If user refuses to pay expense or reimbursement of expense is unsuccessful, enter the step returning request failure information, reminding user fails program request, and suggestion user selects other programs.

The step of certificate issuance: certificates constructing with sign and issue subsystem according to the licence of asking authorization message to generate this request, licence is sent to the safe Broadcast Control device of this internet television terminal.

The integrated Broadcast Control platform of internet television is the description that licence that internet television terminal equipment is signed and issued comprises authorization message, comprises the equipment unique number of internet terminal, user account, license issuance time, license term, the numbering of licensed program, the licensed viewing rights of using to video-audio program content and performs described key (being exactly the decruption key of ciphered program usually) needed for right; Content in licence sends to the safe Broadcast Control device of this internet television terminal of filing a request after the public key encryption of requesting terminal.

The step of audio-visual content transmission: encrypted audio-visual content is sent to internet television terminal by CDN content distribution transmission system by internet television integrated Broadcast Control platform.

User due to OTT internet television can be distributed in national any region (current policy restriction can only use in integration of three networks model regions) in theory, very high to the requirement of Content Delivery Network, mainly high bandwidth, low time delay, bandwidth good stability, low packet loss etc.Meanwhile, for alleviating the pressure of a large number of users height Concurrency Access to internet television integrated Broadcast Control Platform center server, all adopting CDN content distribution transmission system to carry out content at present and transmitting to the transmission of user terminal.The integrated Broadcast Control platform of internet television will need programme information (the program ID of transmission, demand bit rate etc.), the Unique Device of terminal numbering, terminal region and IP address of terminal etc. are supplied to CDN content distribution transmission system, CDN content distribution transmission system, according to the cache condition of customer location and network connection status and this program, selects optimum edge access server and network connection route programme content to be sent to the internet television terminal of filing a request by efficient protocols automatically.

The step that program is play: the deciphering of the audio-visual content that safe Broadcast Control device is encrypted according to the authorization message of license records, and send the video and audio after deciphering to content reproduction device, content reproduction device is transferred to display device to after video and audio decoding, completes the playback of video and audio.

Safe Broadcast Control device is after receiving the licence that the integrated Broadcast Control platform of internet television signs and issues, use the private key deciphering licence of this terminal, obtain authorization message and decruption key, to the deciphering of the encryption audio-visual content received by CDN service client terminal device, according to instruction and the restriction of authorization message, send the video-audio program content after deciphering to content reproduction device, content reproduction device is transferred to display device to after video and audio decoding, completes the playback of video and audio.

Whether the kind of authorization message has multiple combination, the number of times such as can watched, the date range (month still how long) that can watch, can local storage copy etc., and safe Broadcast Control device needs the instruction work of strict implement authorization message.

The form of internet television terminal conventional at present mainly contains two kinds: internet television Set Top Box, internet television all-in-one.Internet television Set Top Box shows and sound-playing function except not having picture, and other function is all complete, and the program that it is play needs by video/audio signal cable transfer to television set, and the audio-visual content completed to user broadcasts.Current Set Top Box has multiple: the digital cable box etc. of analog catv Set Top Box, digital cable box, band two-way interactive function; these Set Top Box are all the cable TV network received television programs by cable television operators; they use the mode of CA card mostly; protection is encrypted to the channel of program transmission, but cannot accomplishes to carry out different rights managements to each program.Internet television Set Top Box is that by the Internet received television program, and the program transmitted in internet television system can carry out different encryptions to each program by IP network interface access public internet, carries out different mandate restrictions to each program.Traditional Set Top Box is not owing to needing by the integrated Broadcast Control platform management of internet television; so ununified volume equipment unique encodings; also do not need unique encodings memory, they carry out service protection by CA mode, also do not need inner safe Broadcast Control device and user security information storage device.In principle, internet television can transmit under not having CDN content to distribute the cooperation of transmission system, but like that the viewing experience of program cannot be protected, and central server pressure also can be very large to such an extent as to cannot work.After adopting CDN content distribution transmission system, some more optimal host-host protocols can be adopted to carry out Route Selection, local cache, error control, higher bandwidth availability ratio, but this just needs the CDN service client terminal device distributing transmission system adaptation with CDN content, the use that transmission system together completes proprietary protocol is distributed with CDN content, Route Selection, local cache, the error control optimized, higher bandwidth availability ratio.

Internet television all-in-one has been integrated into inside television one block of internet television set-top box circuitry plate in fact exactly, its operation principle is identical with internet television Set Top Box, can take up room less after being only combined into an equipment more attractive in appearance, connecting line between lacking mutually is more easy to use, decoded video-audio program content is directly delivered display at device interior and is play, and viewing experience and the manipulation experience of user may be better.But it is unfavorable for having the family of television set to promote the use of.

Any in principle can the equipment of playing network audio-visual content, increase safe Broadcast Control device and with the device of internet television integrated Broadcast Control platform interactive adaptation after, can use as internet television terminal, but current policy may also have a definite limitation, and not necessarily have internet television Set Top Box to be suitable for more economically.

If user refuses to pay expense or reimbursement of expense is unsuccessful, enter the step returning request failure information, fail program request or account charges of reminding user is not enough or pay the fees unsuccessful, and suggestion user selects viewing or other programs of program request.

Finally it should be noted that, below only in order to technical scheme of the present invention to be described and unrestricted, although with reference to preferred arrangement scheme to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention (tandem etc. of the connected mode of such as whole system and annexation, each step) or equivalently to replace, and not departing from the spirit and scope of technical solution of the present invention.

Claims

1. one kind is applicable to the digital copyright protection system of OTT internet television, comprise: the integrated Broadcast Control platform of internet television, CDN content distribution transmission system, internet television terminal, third party content service platform, the integrated Broadcast Control platform of described internet television is distributed transmission system with CDN content and is connected, and described CDN content distribution transmission system is connected with multiple internet television terminal; Described internet television integrated Broadcast Control platform is connected with multiple third party content service platform; It is characterized in that:

Described CDN content distribution transmission system is used for transmitting video-audio program content by the Internet to internet television terminal according to the instruction of the integrated Broadcast Control platform of internet television;

Described internet television terminal, for and user interactions, completing user log in; Receive the video-audio program information that the integrated Broadcast Control platform of internet television transmits, and provide representing of program for user and navigate; Receive the interaction request of user and send video-audio program viewing request to the integrated Broadcast Control platform of internet television; Receive the video-audio program content that internet television integrated Broadcast Control platform is sent by CDN content distribution transmission system, receive the certificate that the integrated Broadcast Control platform of internet television is signed and issued, and play video-audio program content according to the secret key decryption in certificate;

Described service operation management system comprises:

User management subsystem, for leading subscriber account;

2. a kind of digital copyright protection system being applicable to OTT internet television according to claim 1, it is characterized in that, described internet television terminal also comprises:

User interactions control device, for receiving and responding the interaction request of user and internet television terminal;

CDN service client terminal device, for adaptive CDN content distribution transmission system, receives the programme content that CDN content distribution transmission system sends.

3. a kind of digital copyright protection system being applicable to OTT internet television according to claim 2, is characterized in that: described internet television terminal is internet television all-in-one or internet television Set Top Box.

4. use the digital literary property protection method being applicable to OTT internet television of system as claimed in claim 1, it is characterized in that described method comprises the steps:

The step that terminal activates: when first time starts shooting after being linked into the Internet for internet television terminal equipment, connection request is sent from the integrated Broadcast Control platform of trend internet television, report the equipment unique number of this terminal to the integrated Broadcast Control platform of internet television and apply for enabling registration, generating and storing the security information of user; According to the equipment unique number registered terminal default subscribers of this terminal, in user management subsystem, create user account, recording user name, user cipher, subscription information, cost information, programme content use information; After terminal activates, user can modify to the user account of default subscribers;

User start shooting log in step: when user opens internet television terminal, prompting user log in, user inputs username and password on login interface; Username and password is sent to the integrated Broadcast Control platform of internet television by internet television terminal, whether legitimacy and the password of internet television integrated Broadcast Control platform inspection user identity be correct, after user identity and password authentification are passed through, the integrated Broadcast Control platform of internet television logins successfully notice to the loopback of internet television terminal;

The step that user's subscription programs information issues: after user's Successful login system, the relevant information of user's subscription programs is handed down to internet television terminal by public internet according to user account information by the integrated Broadcast Control platform of internet television, internet television terminal receives relevant information, and information is presented to user;

Terminal sends the step of program viewing request: user sends program viewing request to safe Broadcast Control device by user interactions control device, and safe Broadcast Control device is by being transferred to the integrated Broadcast Control platform of internet television by program viewing request; Program viewing solicited message comprises the information of video-audio program content of equipment unique number, user account and request;

Program viewing request response and the step confirmed: after the integrated Broadcast Control platform of internet television receives the program viewing solicited message that terminal uploads, first certification is carried out by the identity of user authentication authentication subsystem to terminal and user account, certification subscribes to situation by the rear program bag according to user account and program request paid cases determines whether authorize, if authorized, enter the step of certificate issuance, if do not authorized, enter the step returning request failure information;

5. the digital literary property protection method being applicable to OTT internet television according to claim 4, is characterized in that:

The integrated Broadcast Control platform of internet television is the description that licence that internet television terminal equipment is signed and issued comprises authorization message, comprises the decruption key of the equipment unique number of internet terminal, user account, license issuance time, license term, the numbering of licensed program, the licensed viewing to this program and occupation mode and encrypted program.

6. the digital literary property protection method being applicable to OTT internet television according to claim 5; it is characterized in that: the program that described internet television terminal is asked, the program that to be internet television integrated Broadcast Control platform broadcast according to channel format tissue or the program that the integrated Broadcast Control platform of internet television broadcasts according to program request form tissue.