CN104980816A - Digital video content copyright protection method and system based on SD card - Google Patents
Digital video content copyright protection method and system based on SD card Download PDFInfo
- Publication number
- CN104980816A CN104980816A CN201410126064.6A CN201410126064A CN104980816A CN 104980816 A CN104980816 A CN 104980816A CN 201410126064 A CN201410126064 A CN 201410126064A CN 104980816 A CN104980816 A CN 104980816A
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- video
- card
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a digital video content copyright protection method and system based on a SD card. The method comprises the following steps: S1, a content provider transcodes a video, encrypts the video, packages video information and saves video information in a SD card by using a content encryption system; S2, the content provider uploads information to an authorization server, binds the SD card, and encrypts the video by using a product card activation system; S3, a user sends SD card permission information to the authorization server by using a mobile client; S4, the authorization server analyzes the SD card permission information, verifies authorization information, and returns matched video authorization permission and goes to the step 5 if the SD card permission information passes the verification, or returns an error code and goes the step 6 if not; S5, the mobile client saves the video authorization permission, verifies a video playing application, and performs decryption and playing in real time by using a HTTP Server; and S6, information is displayed according to the error code. The method comprises a content encryption system, a product card activation system, a mobile client, and an authorization server, has good security and realtimeness, and has no influence on the original video playing experience.
Description
Technical field
The invention belongs to technical field of video processing, relate to a kind of copy-right protection method, particularly relate to a kind of video copyright protecting method; Meanwhile, the invention still further relates to a kind of digital copyright protection system with the mobile platform of very strong security, real-time.
Background technology
In recent years, on the one hand, along with the development of video network, with the progress of mobile terminal technology, and the terminal of high computing capability is popularized, and mobile network is widely used as an important digital video content distribution channel.On the other hand, SD card has become the first-selection that mobile video content stores along with features such as the expansion of its memory capacity, portability, platform are compatible.And meanwhile, the interests of rampant piracy compromises product manufacturing person, publication side, publisher and validated user, have confused harmonious network environment.How its digital video content copyright is carried out to the problem also consequentiality of effective protect and manage.But the copyright protection of digital video content is not only the soluble problem of one or several concrete technology, and relate to a whole set of technical scheme of multiple technical field and the combination of mechanism.
The copyright protection regime majority of existing digital video content is based on conventional internet; and it is relatively less based on the copyright protection regime of mobile terminal; simultaneously; what the copyright protection regime majority based on the storage medium SD card of mobile terminal adopted is hardware handles mode; as adopted encryption chip, forbidding that copied files arrives beyond SD card and waiting measure.Then the increase of such hardware handles mode owing to there being hardware cost can cause cost, and to mobile terminal device support bad, limit more.
Summary of the invention
Object of the present invention provides a kind of copy-right protection method of the digital video content based on SD card
The present invention is based on the digital video content copy-right protection method of SD card, the digital video file of encryption and SD card hardware information are bound, stored in the digital video file of encryption in SD card, issue authorization by authorization server, to carry out real time decrypting broadcasting.This copy-right protection method specifically comprises the following steps:
S1. video code conversion, video content encryption, video information are packaged into SD card by digital video content provider;
S2. content supplier uses product card activation system to upload SD card information and video information to authorization server, binding SD card information and video file;
S3. user uses the mobile client of customization to send SD Card Admissions information to authorization server;
S4. the SD Card Admissions information that authorization server parsing mobile terminal sends carries out authorization message verification; If verification is passed through, return the video authorization of this SD card coupling, go to step 5.Otherwise, return error code and go to step 6.
S5. mobile client preserves video authorization information; The broadcasting application of video is verified; Utilize HTTP Server real time decrypting displaying video content.
S6. according to error code display reminding information.
The present invention also provides a kind of copyright protecting system of the digital video content based on SD card, and this system comprises content encryption system, product card activation system, mobile client, authorization server.Described content encryption system is used for converting video coded format, encrypting digital video content, packing video information, for SD card provides content production service; Described product card activation system is used for uploading copyright information to authorization server, binding SD card information and video file; Described mobile client is used for providing content information to user, resolves authorization, resolves deciphering license, plays SD card video content to HTTP Server transmission instruction real time decrypting; Described authorization server be used for storing content supplier copyright information and content information, communicating with mobile client verifies, provides authorization.
This based on digital video content copy-right protection method of SD card and security of system higher, the introducing that authorization and deciphering are permitted improves the traceability of content, can well resist product piracy.Use the decrypted video stream that client side HTTP Server is real-time, both can realize limit and broadcast below, improve broadcast performance and experience, effectively can protect encrypt video content again.Meanwhile, unified authorization server is adopted to be convenient to maintenance and the upgrading of system.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of the copyright protecting system of digital video content based on SD card
Fig. 2 is the flow chart of the copy-right protection method of digital video content based on SD card
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
With reference to Fig. 1, this copyright protecting system based on the digital video content of SD card is made up of content encryption system 1, product card activation system 2, authorization server 3, mobile client 4.
Content encryption system 1 major function comprises: 1) coded format of original video is converted to stream media format.2) managing video information generate product description file, comprises the product K ey of content supplier, video album information, video information, pictorial information.3) encrypting digital video content.4) packaged products description document and encrypted video file.
Product card activation system 2 major function comprises: 1) check this content supplier to have the authority of information upload.2) obtain SD card information, comprise the unique Key of product belonging to sequence number, producer, model, capacity, this SD card.3) obtain video information, comprise video name, video file unique identification Key, product description file.4) information of acquisition is uploaded to authorization server.5) SD card information is obscured encrypt and write in the head data of video-encryption file.
Authorization server 3 major function comprises: the 1) copyright information of store/manage content supplier, comprises product K ey, the SD card information uploaded, the video information uploaded.2) communicate with mobile client 4, verify and provide and permit.
Mobile client 4 major function comprises: 1) provide content information to user, comprises news, Online Video, SD card video information that content supplier issues.2) the head data of encrypt video content are obtained.3) resolve authorization and verify head data and authorization information, to obtain decruption key.4) HTTP Server is called, the video block decrypted video stream play by request.5) pushing video streaming after deciphering is play to player.
In order to better combine with native system, product card activation system should possess following condition: the authority 1) having write SD card.2) Root authority of android system is had.Mobile client uses SD card to need networking activation first.
With reference to Fig. 2, based on the digital literary property protection method of the copyright protecting system of above-mentioned digital video content, comprise the following steps:
S1. content supplier is according to product K ey, video content is encrypted, after package information stored in SD card.
S2. content supplier runs product card activation system 2, and SD card is inserted draw-in groove.Activation system can automatic Verification content supplier authorization privilege, upload SD card information to authorization server 3 and bind SD card information in video content.
S3., when user uses SD card, mobile client can obtain SD card information and reach authorization server 3.
S4. whether authorization server verification mobile terminal SD card information is consistent with authorization message in database.If by, return the video authorization of this SD card coupling, go to step S5; Otherwise return error code and go to step S6.
S5. when user uses mobile client to watch video, mobile client obtains the head data of current crypto video, the information of verification head data and the authorization obtained from authorization server.If pass through, get decruption key, then call HTTP Server and use decruption key by block decrypted video content, transmission of video flow to player plays video.Otherwise, return error code and go to step 6.
S6. according to error code display reminding information.
In above-mentioned steps S6, display reminding information when error code is 1: " video without authorization message "; Display reminding information when error code is 2; " illegal video ".
Compared with prior art, this based on digital video content copy-right protection method of SD card and security of system higher, the introducing that authorization and deciphering are permitted improves the traceability of content, can well resist product piracy.Use the decrypted video stream that client side HTTP Server is real-time, both can realize limit and broadcast below, improve broadcast performance and experience, effectively can protect encrypt video content again.Meanwhile, unified authorization server is adopted to be convenient to maintenance and the upgrading of system.System adopts regular on-line testing authorization message, need not network at any time, both can watch video by off-line, and effectively protect copyright safety again, simultaneously also for user saves flow.
Claims (15)
1. digital video content copyright protection SD card, is characterized in that, to prestore SD card information and encrypted video information, comprise the following steps at authorization server:
S1. video code conversion, video content encryption, video information are packaged into SD card by digital video content provider;
S2. content supplier uses product card activation system to upload SD card information and video information to authorization server, binding SD card information and video file;
S3. user uses the mobile client of customization to send SD Card Admissions information to authorization server;
S4. the SD Card Admissions information that authorization server parsing mobile terminal sends carries out authorization message verification; If verification is passed through, return the video authorization of this SD card coupling, go to step 5.Otherwise, return error code and go to step 6;
S5. mobile client preserves video authorization information; The broadcasting application of video is verified; Utilize HTTP Server real time decrypting displaying video content;
S6. according to error code display reminding information.
2. digital video content copyright protection SD card according to claim 1; it is characterized in that; in step 1; the transcoding of video is realized by following steps: obtain original video files data encoding format; confirm that this coded format is not stream media format; call transcoding module and fluidisation conversion is carried out to original video, generate the video file that new video file is stream media format.
3. digital video content copyright protection SD card according to claim 1, is characterized in that, in step 1, video content encryption realizes the encryption of content by the following method: for the product that often overlaps of content supplier generates unique product K EY; For each video content is encrypted, stochastic generation encryption key; Combine with the encryption key of the product K EY generated, former video file name, self-defining metadata, stochastic generation and carry out packaging ciphering; By the ciphered data information after packing stored in head data; Head data and encrypted file data are combined, after the private key signature of content supplier, generates final encrypted video file.
4. digital video content copyright protection SD card according to claim 1, is characterized in that, in step 1, video information packing realizes information package by the following method: for the product that often overlaps of content supplier generates unique product K EY; Content supplier is that each product adds video album information; Content supplier is that each special edition adds video information; Product K EY, album information, video information are combined and generate product description file; Product description file, product picture information, the packing of encryption rear video file are generated product bag.
5. digital video content copyright protection SD card according to claim 1, it is characterized in that, in step 2, content supplier uses product card activation system to realize uploading SD card information and video information to authorization server by following steps: confirm that there is the authority of information upload in this content supplier; If had permission, by SD card information, comprise the unique Key of product belonging to sequence number, producer, model, capacity, this SD card, by video information, comprise video name, video file unique identification Key, product description file, be uploaded to authorization server.
6. digital video content copyright protection SD card according to claim 1; it is characterized in that; in step 2; content supplier uses product card activation system by following steps binding SD card information and video file: by SD card information; comprise the unique Key of product belonging to sequence number, producer, model, capacity, this SD card, obscure in the head data of encryption write video-encryption file.
7. digital video content copyright protection SD card according to claim 1; it is characterized in that; in step 3; user uses mobile client to send License Info by following steps to authorization server: obtain SD card information, comprises sequence number, producer, model, capacity be sent to authorization server as License Info.
8. digital video content copyright protection SD card according to claim 1, it is characterized in that, in step 4, authorization server verifies the License Info that mobile client sends by the following method: whether checking SD card information is consistent with the SD card information that content service provider is authorized; After being verified, authorization server issues video authorization to client; Otherwise, return error code.
9. digital video content copyright protection SD card according to claim 1, it is characterized in that, in step 5, user uses mobile client to be verified by the broadcasting application of following steps to video: acquisition video file information and video authorization message are carried out legal copy and authorized verification; If by, the head data and the current SD card information that obtain video content are decrypted license verification.If by, obtain decruption key.If verification is not passed through, then according to error code display reminding information.
10. digital video content copyright protection SD card according to claim 1, is characterized in that, in step 5, user uses mobile client real time decrypting displaying video by the following method: after verification, obtains decruption key; Call HTTP Server, the video block decrypted video stream play by request; Pushing video streaming after deciphering is play to player.
The copyright protection SD card of 11. digital video contents, is characterized in that: comprise content encryption system, product card activation system, mobile client, authorization server.Described content encryption system is used for converting video coded format, encrypting digital video content, packing video information, for SD card provides content production service; Described product card activation system is used for uploading copyright information to authorization server, binding SD card information and video file; Described mobile client is used for providing content information to user, resolves authorization, resolves deciphering license, plays SD card video content to HTTp Server transmission instruction real time decrypting; Described authorization server be used for storing content supplier copyright information and content information, communicating with mobile client verifies, provides authorization.
12. digital video content copyright protection SD cards according to claim 11, is characterized in that, described content encryption system is used for video code model to be converted to stream media format; Current production Key, video file name, self-defining metadata, stochastic generation encryption key are combined packaging ciphering stored in video file head data; Head data and encrypted file data are combined and generates final encrypted video file with after the private key signature of content supplier; The product K EY of content supplier, album information, video information are generated product description file, and being embodied as SD card provides content production service.
13. digital video content copyright protection SD cards according to claim 11, it is characterized in that, described product card activation system be used for upload contents provider product K ey, SD card sequence number, manufacturer, model, capacity, video file name, video file unique identification Key, product description file information to authorization server; For the head data by the information of content supplier product K ey, SD card sequence number, manufacturer, model, capacity write encrypted video file.
14. digital video content copyright protection SD cards according to claim 11, is characterized in that, described mobile client is used for providing to client the content information of the news of content supplier, Online Video, SD card offline video; With authorization server interactive communication, resolve authorization and deciphering license, real time decrypting broadcasting is carried out to the video in SD card; Send decryption instructions to HTTP Server and obtain decrypted video stream.
15. digital video content copyright protection SD cards according to claim 11, is characterized in that, described authorization server be used for storing content supplier product K ey, activate video information in SD card information, SD card; With mobile client interactive communication, School Affairs issues authorization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126064.6A CN104980816A (en) | 2014-04-01 | 2014-04-01 | Digital video content copyright protection method and system based on SD card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126064.6A CN104980816A (en) | 2014-04-01 | 2014-04-01 | Digital video content copyright protection method and system based on SD card |
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| CN104980816A true CN104980816A (en) | 2015-10-14 |
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| CN201410126064.6A Pending CN104980816A (en) | 2014-04-01 | 2014-04-01 | Digital video content copyright protection method and system based on SD card |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106055602A (en) * | 2016-05-24 | 2016-10-26 | 腾讯科技（深圳）有限公司 | File verification method and apparatus |
| US20170262853A1 (en) * | 2016-03-14 | 2017-09-14 | Mastercard International Incorporated | Method and system for biometric confirmation of suspect transactions |
| CN108235060A (en) * | 2018-03-12 | 2018-06-29 | 上海哔哩哔哩科技有限公司 | Video-encryption playback method, system and the storage medium obscured based on parameter set |
-
2014
- 2014-04-01 CN CN201410126064.6A patent/CN104980816A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170262853A1 (en) * | 2016-03-14 | 2017-09-14 | Mastercard International Incorporated | Method and system for biometric confirmation of suspect transactions |
| CN106055602A (en) * | 2016-05-24 | 2016-10-26 | 腾讯科技（深圳）有限公司 | File verification method and apparatus |
| US11188635B2 (en) | 2016-05-24 | 2021-11-30 | Tencent Technology (Shenzhen) Company Limited | File authentication method and apparatus |
| CN108235060A (en) * | 2018-03-12 | 2018-06-29 | 上海哔哩哔哩科技有限公司 | Video-encryption playback method, system and the storage medium obscured based on parameter set |
| CN108235060B (en) * | 2018-03-12 | 2020-06-26 | 上海哔哩哔哩科技有限公司 | Video encryption playing method, system and storage medium based on parameter set confusion |
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